# Directories to build
LIB_DIR = lib
SRC_DIRS = egl glsl mesa/es gallium gallium/winsys gallium/targets
-PROGRAM_DIRS = es1/screen es1/xegl es2/xegl
+PROGRAM_DIRS = egl/opengles1 egl/opengles2
# egl st needs this
DEFINES += -DGLX_DIRECT_RENDERING
--- /dev/null
+screen/gears
+screen/tri
+bindtex
+drawtex
+es1_info
+msaa
+pbuffer
+render_tex
+torus
+tri
+two_win
--- /dev/null
+# progs/egl/opengles1/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+
+INCLUDE_DIRS = \
+ -I$(TOP)/include \
+
+HEADERS = $(TOP)/include/GLES/egl.h
+
+
+ES1_LIB_DEPS = \
+ $(TOP)/$(LIB_DIR)/libEGL.so \
+ $(TOP)/$(LIB_DIR)/libGLESv1_CM.so
+
+
+ES1_LIBS = \
+ -L$(TOP)/$(LIB_DIR) -lEGL \
+ -L$(TOP)/$(LIB_DIR) -lGLESv1_CM $(LIBDRM_LIB) -lX11
+
+PROGRAMS = \
+ bindtex \
+ drawtex \
+ es1_info \
+ msaa \
+ pbuffer \
+ render_tex \
+ torus \
+ tri \
+ two_win
+
+
+.c.o:
+ $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
+
+
+
+default: $(PROGRAMS)
+
+
+
+bindtex: bindtex.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) bindtex.o $(ES1_LIBS) -o $@
+
+
+drawtex: drawtex.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) drawtex.o $(ES1_LIBS) -o $@
+
+
+es1_info: es1_info.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) es1_info.o $(ES1_LIBS) -o $@
+
+
+msaa: msaa.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) msaa.o $(ES1_LIBS) -o $@
+
+
+pbuffer: pbuffer.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) pbuffer.o $(ES1_LIBS) -o $@
+
+
+render_tex: render_tex.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) render_tex.o $(ES1_LIBS) -o $@
+
+
+torus: torus.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) torus.o $(ES1_LIBS) -o $@
+
+
+two_win: two_win.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) two_win.o $(ES1_LIBS) -o $@
+
+
+tri: tri.o $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) tri.o $(ES1_LIBS) -o $@
+
+
+clean:
+ rm -f *.o *~
+ rm -f $(PROGRAMS)
+
--- /dev/null
+/*
+ * Simple demo for eglBindTexImage. Based on xegl_tri.c by
+ *
+ * Copyright (C) 2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * The spec says that eglBindTexImage supports only OpenGL ES context, but this
+ * demo uses OpenGL context. Keep in mind that this is non-standard.
+ */
+
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <EGL/egl.h>
+
+static EGLDisplay dpy;
+static EGLContext ctx_win, ctx_pbuf;
+static EGLSurface surf_win, surf_pbuf;
+static GLuint tex_pbuf;
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+static GLboolean blend = GL_TRUE;
+static GLuint color_flow;
+
+static void
+make_pbuffer(int width, int height)
+{
+ static const EGLint config_attribs[] = {
+ EGL_RED_SIZE, 8,
+ EGL_GREEN_SIZE, 8,
+ EGL_BLUE_SIZE, 8,
+ EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE,
+ EGL_NONE
+ };
+ EGLint pbuf_attribs[] = {
+ EGL_WIDTH, width,
+ EGL_HEIGHT, height,
+ EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
+ EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
+ EGL_NONE
+ };
+ EGLConfig config;
+ EGLint num_configs;
+
+ if (!eglChooseConfig(dpy, config_attribs, &config, 1, &num_configs) ||
+ !num_configs) {
+ printf("Error: couldn't get an EGL visual config for pbuffer\n");
+ exit(1);
+ }
+
+ ctx_pbuf = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL );
+ surf_pbuf = eglCreatePbufferSurface(dpy, config, pbuf_attribs);
+ if (surf_pbuf == EGL_NO_SURFACE) {
+ printf("failed to allocate pbuffer\n");
+ exit(1);
+ }
+}
+
+static void
+use_pbuffer(void)
+{
+ static int initialized;
+
+ eglMakeCurrent(dpy, surf_pbuf, surf_pbuf, ctx_pbuf);
+ if (!initialized) {
+ EGLint width, height;
+ GLfloat ar;
+
+ initialized = 1;
+
+ eglQuerySurface(dpy, surf_pbuf, EGL_WIDTH, &width);
+ eglQuerySurface(dpy, surf_pbuf, EGL_WIDTH, &height);
+ ar = (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-ar, ar, -1, 1, 1.0, 10.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ /* y-inverted */
+ glScalef(1.0, -1.0, 1.0);
+
+ glTranslatef(0.0, 0.0, -5.0);
+
+ glClearColor(0.2, 0.2, 0.2, 0.0);
+
+ glGenTextures(1, &tex_pbuf);
+ }
+}
+
+static void
+make_window(Display *x_dpy, const char *name,
+ int x, int y, int width, int height,
+ Window *winRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 8,
+ EGL_GREEN_SIZE, 8,
+ EGL_BLUE_SIZE, 8,
+ EGL_ALPHA_SIZE, 8,
+ EGL_DEPTH_SIZE, 8,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLConfig config;
+ EGLint num_configs, vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig(dpy, attribs, &config, 1, &num_configs) ||
+ !num_configs) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ if (!eglGetConfigAttrib(dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ attr.override_redirect = 0;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ ctx_win = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx_win) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ surf_win = eglCreateWindowSurface(dpy, config, win, NULL);
+
+ XFree(visInfo);
+
+ *winRet = win;
+}
+
+static void
+use_window(void)
+{
+ static int initialized;
+
+ eglMakeCurrent(dpy, surf_win, surf_win, ctx_win);
+ if (!initialized) {
+ initialized = 1;
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, tex_pbuf);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ }
+}
+
+static void
+draw_triangle(void)
+{
+ static const GLfloat verts[3][2] = {
+ { -3, -3 },
+ { 3, -3 },
+ { 0, 3 }
+ };
+ GLfloat colors[3][4] = {
+ { 1, 0, 0, 1 },
+ { 0, 1, 0, 1 },
+ { 0, 0, 1, 1 }
+ };
+ GLint i;
+
+ /* flow the color */
+ for (i = 0; i < 3; i++) {
+ GLint first = (i + color_flow / 256) % 3;
+ GLint second = (first + 1) % 3;
+ GLint third = (second + 1) % 3;
+ GLfloat c = (color_flow % 256) / 256.0f;
+
+ c = c * c * c;
+ colors[i][first] = 1.0f - c;
+ colors[i][second] = c;
+ colors[i][third] = 0.0f;
+ }
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glVertexPointer(2, GL_FLOAT, 0, verts);
+ glColorPointer(4, GL_FLOAT, 0, colors);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+}
+
+static void
+draw_textured_cube(void)
+{
+ static const GLfloat verts[][2] = {
+ { -4, -4 },
+ { 4, -4 },
+ { 4, 4 },
+ { -4, 4 }
+ };
+ static const GLfloat colors[][4] = {
+ { 1, 1, 1, 0.5 },
+ { 1, 1, 1, 0.5 },
+ { 1, 1, 1, 0.5 },
+ { 1, 1, 1, 0.5 }
+ };
+ static const GLfloat texs[][2] = {
+ { 0, 0 },
+ { 1, 0 },
+ { 1, 1 },
+ { 0, 1 }
+ };
+ static const GLfloat xforms[6][4] = {
+ { 0, 0, 1, 0 },
+ { 90, 0, 1, 0 },
+ { 180, 0, 1, 0 },
+ { 270, 0, 1, 0 },
+ { 90, 1, 0, 0 },
+ { -90, 1, 0, 0 }
+ };
+ GLint i;
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ if (blend) {
+ glDisable(GL_DEPTH_TEST);
+ glEnable(GL_BLEND);
+ } else {
+ glEnable(GL_DEPTH_TEST);
+ glDisable(GL_BLEND);
+ }
+
+ glVertexPointer(2, GL_FLOAT, 0, verts);
+ glColorPointer(4, GL_FLOAT, 0, colors);
+ glTexCoordPointer(2, GL_FLOAT, 0, texs);
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ for (i = 0; i < 6; i++) {
+ glPushMatrix();
+ glRotatef(xforms[i][0], xforms[i][1], xforms[i][2], xforms[i][3]);
+ glTranslatef(0, 0, 4.1);
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+ glPopMatrix();
+ }
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+static void
+draw(void)
+{
+ use_pbuffer();
+ draw_triangle();
+
+ use_window();
+
+ eglBindTexImage(dpy, surf_pbuf, EGL_BACK_BUFFER);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+
+ draw_textured_cube();
+
+ glPopMatrix();
+
+ eglReleaseTexImage(dpy, surf_pbuf, EGL_BACK_BUFFER);
+}
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ use_window();
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -40.0);
+}
+
+static void
+event_loop(Display *x_dpy, Window win)
+{
+ while (1) {
+ int redraw = 1;
+
+ if (XPending(x_dpy) > 0) {
+ XEvent event;
+ XNextEvent(x_dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else if (code == XK_b) {
+ blend = !blend;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+ }
+
+ if (redraw) {
+ view_rotx += 1.0;
+ view_roty += 2.0;
+ view_rotz += 1.5;
+ color_flow += 20;
+ draw();
+ eglSwapBuffers(dpy, surf_win);
+ }
+ }
+}
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 300, winHeight = 300;
+ Display *x_dpy;
+ Window win;
+ char *dpyName = NULL;
+ EGLint egl_major, egl_minor;
+ const char *s;
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ dpy = eglGetDisplay(x_dpy);
+ if (!dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ make_window(x_dpy, "color flow", 0, 0, winWidth, winHeight, &win);
+ make_pbuffer(winWidth, winHeight);
+
+ XMapWindow(x_dpy, win);
+
+ reshape(winWidth, winHeight);
+ event_loop(x_dpy, win);
+
+ glDeleteTextures(1, &tex_pbuf);
+
+ eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+ eglTerminate(dpy);
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
+ */
+
+/*
+ * Test GL_OES_draw_texture
+ * Brian Paul
+ * August 2008
+ */
+
+#define GL_GLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+
+static GLfloat view_posx = 10.0, view_posy = 20.0;
+static GLfloat width = 200, height = 200;
+
+
+static void
+draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glDrawTexfOES(view_posx, view_posy, 0.0, width, height);
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+
+#ifdef GL_VERSION_ES_CM_1_0
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+ glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static float
+dist(GLuint i, GLuint j, float x, float y)
+{
+ return sqrt((i-x) * (i-x) + (j-y) * (j-y));
+}
+
+static void
+make_smile_texture(void)
+{
+#define SZ 128
+ GLenum Filter = GL_LINEAR;
+ GLubyte image[SZ][SZ][4];
+ GLuint i, j;
+ GLint cropRect[4];
+
+ for (i = 0; i < SZ; i++) {
+ for (j = 0; j < SZ; j++) {
+ GLfloat d_mouth = dist(i, j, SZ/2, SZ/2);
+ GLfloat d_rt_eye = dist(i, j, SZ*3/4, SZ*3/4);
+ GLfloat d_lt_eye = dist(i, j, SZ*3/4, SZ*1/4);
+ if (d_rt_eye < SZ / 8 || d_lt_eye < SZ / 8) {
+ image[i][j][0] = 20;
+ image[i][j][1] = 50;
+ image[i][j][2] = 255;
+ image[i][j][3] = 255;
+ }
+ else if (i < SZ/2 && d_mouth < SZ/3) {
+ image[i][j][0] = 255;
+ image[i][j][1] = 20;
+ image[i][j][2] = 20;
+ image[i][j][3] = 255;
+ }
+ else {
+ image[i][j][0] = 200;
+ image[i][j][1] = 200;
+ image[i][j][2] = 200;
+ image[i][j][3] = 255;
+ }
+ }
+ }
+
+ glActiveTexture(GL_TEXTURE0); /* unit 0 */
+ glBindTexture(GL_TEXTURE_2D, 42);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, image);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+ cropRect[0] = 0;
+ cropRect[1] = 0;
+ cropRect[2] = SZ;
+ cropRect[3] = SZ;
+ glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect);
+#undef SZ
+}
+
+
+
+static void
+init(void)
+{
+ const char *ext = (char *) glGetString(GL_EXTENSIONS);
+
+ if (!strstr(ext, "GL_OES_draw_texture")) {
+ fprintf(stderr, "Sorry, this program requires GL_OES_draw_texture");
+ exit(1);
+ }
+
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+
+ make_smile_texture();
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ eglBindAPI(EGL_OPENGL_ES_API);
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+ EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+ int anim = 0;
+
+ while (1) {
+ int redraw = 0;
+
+ if (!anim || XPending(dpy)) {
+ XEvent event;
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_posx -= 1.0;
+ }
+ else if (code == XK_Right) {
+ view_posx += 1.0;
+ }
+ else if (code == XK_Up) {
+ view_posy += 1.0;
+ }
+ else if (code == XK_Down) {
+ view_posy -= 1.0;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == ' ') {
+ anim = !anim;
+ }
+ else if (buffer[0] == 'w') {
+ width -= 1.0f;
+ }
+ else if (buffer[0] == 'W') {
+ width += 1.0f;
+ }
+ else if (buffer[0] == 'h') {
+ height -= 1.0f;
+ }
+ else if (buffer[0] == 'H') {
+ height += 1.0f;
+ }
+ else if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+ }
+
+ if (anim) {
+ view_posx += 1.0;
+ view_posy += 2.0;
+ redraw = 1;
+ }
+
+ if (redraw) {
+ draw();
+ eglSwapBuffers(egl_dpy, egl_surf);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 400, winHeight = 300;
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "drawtex", 0, 0, winWidth, winHeight,
+ &win, &egl_ctx, &egl_surf);
+
+ XMapWindow(x_dpy, win);
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+
+ init();
+
+ /* Set initial projection/viewing transformation.
+ * We can't be sure we'll get a ConfigureNotify event when the window
+ * first appears.
+ */
+ reshape(winWidth, winHeight);
+
+ event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
+ */
+
+/*
+ * List OpenGL ES extensions.
+ * Print ES 1 or ES 2 extensions depending on which library we're
+ * linked with: libGLESv1_CM.so vs libGLESv2.so
+ */
+
+#define GL_GLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+/*
+ * Print a list of extensions, with word-wrapping.
+ */
+static void
+print_extension_list(const char *ext)
+{
+ const char *indentString = " ";
+ const int indent = 4;
+ const int max = 79;
+ int width, i, j;
+
+ if (!ext || !ext[0])
+ return;
+
+ width = indent;
+ printf(indentString);
+ i = j = 0;
+ while (1) {
+ if (ext[j] == ' ' || ext[j] == 0) {
+ /* found end of an extension name */
+ const int len = j - i;
+ if (width + len > max) {
+ /* start a new line */
+ printf("\n");
+ width = indent;
+ printf(indentString);
+ }
+ /* print the extension name between ext[i] and ext[j] */
+ while (i < j) {
+ printf("%c", ext[i]);
+ i++;
+ }
+ /* either we're all done, or we'll continue with next extension */
+ width += len + 1;
+ if (ext[j] == 0) {
+ break;
+ }
+ else {
+ i++;
+ j++;
+ if (ext[j] == 0)
+ break;
+ printf(", ");
+ width += 2;
+ }
+ }
+ j++;
+ }
+ printf("\n");
+}
+
+
+static void
+info(EGLDisplay egl_dpy)
+{
+ const char *s;
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_EXTENSIONS:\n");
+ print_extension_list((char *) glGetString(GL_EXTENSIONS));
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height, int es_ver,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ EGLint attribs[] = {
+ EGL_RENDERABLE_TYPE, 0x0,
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_NONE
+ };
+ EGLint ctx_attribs[] = {
+ EGL_CONTEXT_CLIENT_VERSION, 0,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (es_ver == 1)
+ attribs[1] = EGL_OPENGL_ES_BIT;
+ else
+ attribs[1] = EGL_OPENGL_ES2_BIT;
+ ctx_attribs[1] = es_ver;
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ eglBindAPI(EGL_OPENGL_ES_API);
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 400, winHeight = 300;
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ EGLint egl_major, egl_minor, es_ver;
+ int i;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ es_ver = 1;
+ /* decide the version from the executable's name */
+ if (argc > 0 && argv[0] && strstr(argv[0], "es2"))
+ es_ver = 2;
+ make_x_window(x_dpy, egl_dpy,
+ "ES info", 0, 0, winWidth, winHeight, es_ver,
+ &win, &egl_ctx, &egl_surf);
+
+ /*XMapWindow(x_dpy, win);*/
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ info(egl_dpy);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Test MSAA with X/EGL and OpenGL ES 1.x
+ * Brian Paul
+ * 15 September 2008
+ */
+
+#define USE_FULL_GL 0
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#if USE_FULL_GL
+#include <GL/gl.h> /* use full OpenGL */
+#else
+#include <GLES/gl.h> /* use OpenGL ES 1.x */
+#include <GLES/glext.h>
+#endif
+#include <EGL/egl.h>
+
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+static GLboolean AA = 0*GL_TRUE;
+
+
+static void
+draw(void)
+{
+ float a;
+
+ static const GLfloat verts[4][2] = {
+ { -1, -.1 },
+ { 1, -.1 },
+ { -1, .1 },
+ { 1, .1 }
+ };
+ static const GLfloat colors[4][4] = {
+ { 1, 0, 0, 1 },
+ { 0, 1, 0, 1 },
+ { 0, 0, 1, 1 },
+ { 1, 0, 1, 1 }
+ };
+
+ if (AA) {
+ printf("MSAA enabled\n");
+ glEnable(GL_MULTISAMPLE);
+ }
+ else {
+ printf("MSAA disabled\n");
+ glDisable(GL_MULTISAMPLE);
+ }
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+
+ {
+ glVertexPointer(2, GL_FLOAT, 0, verts);
+ glColorPointer(4, GL_FLOAT, 0, colors);
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ for (a = 0; a < 360; a += 20.0) {
+ glPushMatrix();
+
+ glRotatef(a, 0, 0, 1);
+ glTranslatef(1.5, 0, 0);
+
+ /* draw triangle */
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+ glPopMatrix();
+ }
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+ }
+
+ glPopMatrix();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat ary = 3.0;
+ GLfloat arx = ary * (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+#ifdef GL_VERSION_ES_CM_1_0
+ glOrthof(-arx, arx, -ary, ary, -1.0, 1.0);
+#else
+ glOrtho(-arx, arx, -ary, ary, -1.0, 1.0);
+#endif
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+}
+
+
+
+static void
+init(void)
+{
+ printf("Press 'a' to toggle multisample antialiasing\n");
+ printf("Press 'Esc' to exit\n");
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_SAMPLES, 1,
+ EGL_SAMPLE_BUFFERS, 1,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ if (num_configs < 1) {
+ printf("Error: Unable to find multisample pixel format.\n");
+ printf("Try running glxinfo to see if your server supports MSAA.\n");
+ exit(1);
+ }
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+#if USE_FULL_GL
+ eglBindAPI(EGL_OPENGL_API);
+#else
+ eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+ EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+ while (1) {
+ int redraw = 0;
+ XEvent event;
+
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == 'a') {
+ AA = !AA;
+ redraw = 1;
+ }
+ else if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+
+ if (redraw) {
+ draw();
+ eglSwapBuffers(egl_dpy, egl_surf);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 600, winHeight = 600;
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ static struct {
+ char *name;
+ GLenum value;
+ enum {GetString, GetInteger} type;
+ } info_items[] = {
+ {"GL_RENDERER", GL_RENDERER, GetString},
+ {"GL_VERSION", GL_VERSION, GetString},
+ {"GL_VENDOR", GL_VENDOR, GetString},
+ {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
+ {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
+ {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
+ };
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "msaa", 0, 0, winWidth, winHeight,
+ &win, &egl_ctx, &egl_surf);
+
+ XMapWindow(x_dpy, win);
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
+ switch (info_items[i].type) {
+ case GetString:
+ printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
+ break;
+ case GetInteger: {
+ GLint rv = -1;
+ glGetIntegerv(info_items[i].value, &rv);
+ printf("%s = %d\n", info_items[i].name, rv);
+ break;
+ }
+ }
+ }
+ };
+ init();
+
+ /* Set initial projection/viewing transformation.
+ * We can't be sure we'll get a ConfigureNotify event when the window
+ * first appears.
+ */
+ reshape(winWidth, winHeight);
+
+ event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
+ */
+
+/*
+ * Test EGL Pbuffers
+ * Brian Paul
+ * August 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+
+static int WinWidth = 300, WinHeight = 300;
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+static void
+Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
+{
+ n[0] = nx;
+ n[1] = ny;
+ n[2] = nz;
+}
+
+static void
+Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
+{
+ v[0] = vx;
+ v[1] = vy;
+ v[2] = vz;
+}
+
+static void
+Texcoord(GLfloat *v, GLfloat s, GLfloat t)
+{
+ v[0] = s;
+ v[1] = t;
+}
+
+
+/* Borrowed from glut, adapted */
+static void
+draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
+{
+ int i, j;
+ GLfloat theta, phi, theta1;
+ GLfloat cosTheta, sinTheta;
+ GLfloat cosTheta1, sinTheta1;
+ GLfloat ringDelta, sideDelta;
+ GLfloat varray[100][3], narray[100][3], tarray[100][2];
+ int vcount;
+
+ glVertexPointer(3, GL_FLOAT, 0, varray);
+ glNormalPointer(GL_FLOAT, 0, narray);
+ glTexCoordPointer(2, GL_FLOAT, 0, tarray);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_NORMAL_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ ringDelta = 2.0 * M_PI / rings;
+ sideDelta = 2.0 * M_PI / nsides;
+
+ theta = 0.0;
+ cosTheta = 1.0;
+ sinTheta = 0.0;
+ for (i = rings - 1; i >= 0; i--) {
+ theta1 = theta + ringDelta;
+ cosTheta1 = cos(theta1);
+ sinTheta1 = sin(theta1);
+
+ vcount = 0; /* glBegin(GL_QUAD_STRIP); */
+
+ phi = 0.0;
+ for (j = nsides; j >= 0; j--) {
+ GLfloat s0, s1, t;
+ GLfloat cosPhi, sinPhi, dist;
+
+ phi += sideDelta;
+ cosPhi = cos(phi);
+ sinPhi = sin(phi);
+ dist = R + r * cosPhi;
+
+ s0 = 20.0 * theta / (2.0 * M_PI);
+ s1 = 20.0 * theta1 / (2.0 * M_PI);
+ t = 8.0 * phi / (2.0 * M_PI);
+
+ Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+ Texcoord(tarray[vcount], s1, t);
+ Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
+ vcount++;
+
+ Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+ Texcoord(tarray[vcount], s0, t);
+ Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi);
+ vcount++;
+ }
+
+ /*glEnd();*/
+ assert(vcount <= 100);
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
+
+ theta = theta1;
+ cosTheta = cosTheta1;
+ sinTheta = sinTheta1;
+ }
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_NORMAL_ARRAY);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+
+static void
+draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+ glScalef(0.5, 0.5, 0.5);
+
+ draw_torus(1.0, 3.0, 30, 60);
+
+ glPopMatrix();
+
+ glFinish();
+}
+
+
+/**
+ * Draw to both the window and pbuffer and compare results.
+ */
+static void
+draw_both(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+ EGLContext egl_ctx)
+{
+ unsigned *wbuf, *pbuf;
+ int x = 100, y = 110;
+ int i, dif;
+
+ wbuf = (unsigned *) malloc(WinWidth * WinHeight * 4);
+ pbuf = (unsigned *) malloc(WinWidth * WinHeight * 4);
+
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+
+ /* first draw to window */
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent(window) failed\n");
+ return;
+ }
+ draw();
+ glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, wbuf);
+ printf("Window[%d,%d] = 0x%08x\n", x, y, wbuf[y*WinWidth+x]);
+
+ /* then draw to pbuffer */
+ if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) {
+ printf("Error: eglMakeCurrent(pbuffer) failed\n");
+ return;
+ }
+ draw();
+ glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, pbuf);
+ printf("Pbuffer[%d,%d] = 0x%08x\n", x, y, pbuf[y*WinWidth+x]);
+
+ eglSwapBuffers(egl_dpy, egl_surf);
+
+ /* compare renderings */
+ for (dif = i = 0; i < WinWidth * WinHeight; i++) {
+ if (wbuf[i] != pbuf[i]) {
+ dif = 1;
+ break;
+ }
+ }
+
+ if (dif)
+ printf("Difference at %d: 0x%08x vs. 0x%08x\n", i, wbuf[i], pbuf[i]);
+ else
+ printf("Window rendering matches Pbuffer rendering!\n");
+
+ free(wbuf);
+ free(pbuf);
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ WinWidth = width;
+ WinHeight = height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+
+#ifdef GL_VERSION_ES_CM_1_0
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+ glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static void
+make_texture(void)
+{
+#define SZ 64
+ GLenum Filter = GL_LINEAR;
+ GLubyte image[SZ][SZ][4];
+ GLuint i, j;
+
+ for (i = 0; i < SZ; i++) {
+ for (j = 0; j < SZ; j++) {
+ GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
+ d = sqrt(d);
+ if (d < SZ/3) {
+ image[i][j][0] = 255;
+ image[i][j][1] = 255;
+ image[i][j][2] = 255;
+ image[i][j][3] = 255;
+ }
+ else {
+ image[i][j][0] = 127;
+ image[i][j][1] = 127;
+ image[i][j][2] = 127;
+ image[i][j][3] = 255;
+ }
+ }
+ }
+
+ glActiveTexture(GL_TEXTURE0); /* unit 0 */
+ glBindTexture(GL_TEXTURE_2D, 42);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, image);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+#undef SZ
+}
+
+
+
+static void
+init(void)
+{
+ static const GLfloat red[4] = {1, 0, 0, 0};
+ static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+ static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
+ static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
+ static const GLfloat pos[4] = {20, 20, 50, 1};
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+ glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
+ glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
+
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
+ glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
+
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+ glEnable(GL_DEPTH_TEST);
+
+ make_texture();
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ eglBindAPI(EGL_OPENGL_ES_API);
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static EGLSurface
+make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height)
+{
+ static const EGLint config_attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_NONE
+ };
+ EGLConfig config;
+ EGLSurface pbuf;
+ EGLint num_configs;
+ EGLint pbuf_attribs[5];
+
+ pbuf_attribs[0] = EGL_WIDTH;
+ pbuf_attribs[1] = width;
+ pbuf_attribs[2] = EGL_HEIGHT;
+ pbuf_attribs[3] = height;
+ pbuf_attribs[4] = EGL_NONE;
+
+ if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL config for pbuffer\n");
+ exit(1);
+ }
+
+ pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs);
+
+ return pbuf;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+ EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+ EGLContext egl_ctx)
+{
+ int anim = 0;
+
+ while (1) {
+ int redraw = 0;
+
+ if (!anim || XPending(dpy)) {
+ XEvent event;
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ if (event.xconfigure.window == win)
+ reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == ' ') {
+ anim = !anim;
+ }
+ else if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+ }
+
+ if (anim) {
+ view_rotx += 1.0;
+ view_roty += 2.0;
+ redraw = 1;
+ }
+
+ if (redraw) {
+ draw_both(egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf, egl_pbuf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "pbuffer", 0, 0, WinWidth, WinHeight,
+ &win, &egl_ctx, &egl_surf);
+
+ egl_pbuf = make_pbuffer(x_dpy, egl_dpy, WinWidth, WinHeight);
+ if (!egl_pbuf) {
+ printf("Error: eglCreatePBufferSurface() failed\n");
+ return -1;
+ }
+
+ XMapWindow(x_dpy, win);
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+
+ init();
+
+ /* Set initial projection/viewing transformation.
+ * We can't be sure we'll get a ConfigureNotify event when the window
+ * first appears.
+ */
+ reshape(WinWidth, WinHeight);
+
+ event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
+ */
+
+/*
+ * Test EGL render to texture.
+ * Brian Paul
+ * August 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+static int TexWidth = 256, TexHeight = 256;
+
+static int WinWidth = 300, WinHeight = 300;
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+static GLuint DotTexture, RenderTexture;
+
+
+static void
+Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
+{
+ n[0] = nx;
+ n[1] = ny;
+ n[2] = nz;
+}
+
+static void
+Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
+{
+ v[0] = vx;
+ v[1] = vy;
+ v[2] = vz;
+}
+
+static void
+Texcoord(GLfloat *v, GLfloat s, GLfloat t)
+{
+ v[0] = s;
+ v[1] = t;
+}
+
+
+/* Borrowed from glut, adapted */
+static void
+draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
+{
+ int i, j;
+ GLfloat theta, phi, theta1;
+ GLfloat cosTheta, sinTheta;
+ GLfloat cosTheta1, sinTheta1;
+ GLfloat ringDelta, sideDelta;
+ GLfloat varray[100][3], narray[100][3], tarray[100][2];
+ int vcount;
+
+ glVertexPointer(3, GL_FLOAT, 0, varray);
+ glNormalPointer(GL_FLOAT, 0, narray);
+ glTexCoordPointer(2, GL_FLOAT, 0, tarray);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_NORMAL_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ ringDelta = 2.0 * M_PI / rings;
+ sideDelta = 2.0 * M_PI / nsides;
+
+ theta = 0.0;
+ cosTheta = 1.0;
+ sinTheta = 0.0;
+ for (i = rings - 1; i >= 0; i--) {
+ theta1 = theta + ringDelta;
+ cosTheta1 = cos(theta1);
+ sinTheta1 = sin(theta1);
+
+ vcount = 0; /* glBegin(GL_QUAD_STRIP); */
+
+ phi = 0.0;
+ for (j = nsides; j >= 0; j--) {
+ GLfloat s0, s1, t;
+ GLfloat cosPhi, sinPhi, dist;
+
+ phi += sideDelta;
+ cosPhi = cos(phi);
+ sinPhi = sin(phi);
+ dist = R + r * cosPhi;
+
+ s0 = 20.0 * theta / (2.0 * M_PI);
+ s1 = 20.0 * theta1 / (2.0 * M_PI);
+ t = 8.0 * phi / (2.0 * M_PI);
+
+ Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+ Texcoord(tarray[vcount], s1, t);
+ Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
+ vcount++;
+
+ Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+ Texcoord(tarray[vcount], s0, t);
+ Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi);
+ vcount++;
+ }
+
+ /*glEnd();*/
+ assert(vcount <= 100);
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
+
+ theta = theta1;
+ cosTheta = cosTheta1;
+ sinTheta = sinTheta1;
+ }
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_NORMAL_ARRAY);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+
+static void
+draw_torus_to_texture(void)
+{
+ glViewport(0, 0, TexWidth, TexHeight);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-1, 1, -1, 1, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glBindTexture(GL_TEXTURE_2D, DotTexture);
+
+ glEnable(GL_LIGHTING);
+
+ glPushMatrix();
+ glRotatef(view_roty, 0, 1, 0);
+ glScalef(0.5, 0.5, 0.5);
+
+ draw_torus(1.0, 3.0, 30, 60);
+
+ glPopMatrix();
+
+ glDisable(GL_LIGHTING);
+
+#if 0
+ glBindTexture(GL_TEXTURE_2D, RenderTexture);
+ glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, TexWidth, TexHeight);
+#endif
+
+ glFinish();
+}
+
+
+static void
+draw_textured_quad(void)
+{
+ GLfloat ar = (GLfloat) WinWidth / (GLfloat) WinHeight;
+
+ glViewport(0, 0, WinWidth, WinHeight);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -8.0);
+
+ glClearColor(0.4, 0.4, 1.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glBindTexture(GL_TEXTURE_2D, RenderTexture);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+
+ {
+ static const GLfloat texcoord[4][2] = {
+ { 0, 0 }, { 1, 0 }, { 0, 1 }, { 1, 1 }
+ };
+ static const GLfloat vertex[4][2] = {
+ { -1, -1 }, { 1, -1 }, { -1, 1 }, { 1, 1 }
+ };
+
+ glVertexPointer(2, GL_FLOAT, 0, vertex);
+ glTexCoordPointer(2, GL_FLOAT, 0, texcoord);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ }
+
+ glPopMatrix();
+}
+
+
+
+static void
+draw(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+ EGLContext egl_ctx)
+{
+ /*printf("Begin draw\n");*/
+
+ /* first draw torus to pbuffer /texture */
+#if 01
+ if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) {
+#else
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+#endif
+ printf("Error: eglMakeCurrent(pbuf) failed\n");
+ return;
+ }
+ draw_torus_to_texture();
+
+ /* draw textured quad to window */
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent(pbuffer) failed\n");
+ return;
+ }
+
+ glBindTexture(GL_TEXTURE_2D, RenderTexture);
+ eglBindTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER);
+ draw_textured_quad();
+ eglReleaseTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER);
+
+ eglSwapBuffers(egl_dpy, egl_surf);
+
+ /*printf("End draw\n");*/
+}
+
+
+
+static void
+make_dot_texture(void)
+{
+#define SZ 64
+ GLenum Filter = GL_LINEAR;
+ GLubyte image[SZ][SZ][4];
+ GLuint i, j;
+
+ for (i = 0; i < SZ; i++) {
+ for (j = 0; j < SZ; j++) {
+ GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
+ d = sqrt(d);
+ if (d < SZ/3) {
+ image[i][j][0] = 255;
+ image[i][j][1] = 255;
+ image[i][j][2] = 255;
+ image[i][j][3] = 255;
+ }
+ else {
+ image[i][j][0] = 127;
+ image[i][j][1] = 127;
+ image[i][j][2] = 127;
+ image[i][j][3] = 255;
+ }
+ }
+ }
+
+ glGenTextures(1, &DotTexture);
+ glBindTexture(GL_TEXTURE_2D, DotTexture);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, image);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+#undef SZ
+}
+
+
+static void
+make_render_texture(void)
+{
+ GLenum Filter = GL_LINEAR;
+ glGenTextures(1, &RenderTexture);
+ glBindTexture(GL_TEXTURE_2D, RenderTexture);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TexWidth, TexHeight, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+}
+
+
+static void
+init(void)
+{
+ static const GLfloat red[4] = {1, 0, 0, 0};
+ static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+ static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
+ static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
+ static const GLfloat pos[4] = {20, 20, 50, 1};
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+ glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
+ glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
+
+ glEnable(GL_LIGHT0);
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
+ glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
+
+ glEnable(GL_DEPTH_TEST);
+
+ make_dot_texture();
+ make_render_texture();
+
+ printf("DotTexture=%u RenderTexture=%u\n", DotTexture, RenderTexture);
+
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ eglBindAPI(EGL_OPENGL_ES_API);
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static EGLSurface
+make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height)
+{
+ static const EGLint config_attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_NONE
+ };
+ EGLConfig config;
+ EGLSurface pbuf;
+ EGLint num_configs;
+ EGLint pbuf_attribs[15];
+ int i = 0;
+
+ pbuf_attribs[i++] = EGL_WIDTH;
+ pbuf_attribs[i++] = width;
+ pbuf_attribs[i++] = EGL_HEIGHT;
+ pbuf_attribs[i++] = height;
+ pbuf_attribs[i++] = EGL_TEXTURE_FORMAT;
+ pbuf_attribs[i++] = EGL_TEXTURE_RGBA;
+ pbuf_attribs[i++] = EGL_TEXTURE_TARGET;
+ pbuf_attribs[i++] = EGL_TEXTURE_2D;
+ pbuf_attribs[i++] = EGL_MIPMAP_TEXTURE;
+ pbuf_attribs[i++] = EGL_FALSE;
+ pbuf_attribs[i++] = EGL_NONE;
+ assert(i <= 15);
+
+ if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL config for pbuffer\n");
+ exit(1);
+ }
+
+ pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs);
+
+ return pbuf;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+ EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+ EGLContext egl_ctx)
+{
+ int anim = 0;
+
+ while (1) {
+ int redraw = 0;
+
+ if (!anim || XPending(dpy)) {
+ XEvent event;
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ if (event.xconfigure.window == win) {
+ WinWidth = event.xconfigure.width;
+ WinHeight = event.xconfigure.height;
+ }
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == ' ') {
+ anim = !anim;
+ }
+ else if (buffer[0] == 'z') {
+ view_rotz += 5.0;
+ }
+ else if (buffer[0] == 'Z') {
+ view_rotz -= 5.0;
+ }
+ else if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+ }
+
+ if (anim) {
+ view_rotx += 1.0;
+ view_roty += 2.0;
+ redraw = 1;
+ }
+
+ if (redraw) {
+ draw(egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf, egl_pbuf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "render_tex", 0, 0, WinWidth, WinHeight,
+ &win, &egl_ctx, &egl_surf);
+
+ egl_pbuf = make_pbuffer(x_dpy, egl_dpy, TexWidth, TexHeight);
+ if (!egl_pbuf) {
+ printf("Error: eglCreatePBufferSurface() failed\n");
+ return -1;
+ }
+
+ XMapWindow(x_dpy, win);
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+
+ init();
+
+ event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+# progs/egl/opengles1/screen/Makefile
+
+TOP = ../../../..
+include $(TOP)/configs/current
+
+ES1_CFLAGS = -I$(TOP)/include
+ES1_LIBS = -L$(TOP)/$(LIB_DIR) -lEGL -lGLESv1_CM
+
+ES1_LIB_DEPS = \
+ $(TOP)/$(LIB_DIR)/libEGL.so \
+ $(TOP)/$(LIB_DIR)/libGLESv1_CM.so
+
+WINSYS_OBJS = winsys.o
+
+PROGRAMS = \
+ gears \
+ tri
+
+.c.o:
+ $(CC) -c $(ES1_CFLAGS) $(CFLAGS) $< -o $@
+
+default: $(PROGRAMS)
+
+gears: gears.o $(WINSYS_OBJS) $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) -o $@ $@.o $(WINSYS_OBJS) $(ES1_LIBS)
+
+tri: tri.o $(WINSYS_OBJS) $(ES1_LIB_DEPS)
+ $(CC) $(CFLAGS) -o $@ $@.o $(WINSYS_OBJS) $(ES1_LIBS)
+
+clean:
+ -rm -f *.o *~
+ -rm -f $(PROGRAMS)
--- /dev/null
+/*
+ * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
+ *
+ * Based on eglgears by
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <assert.h>
+
+#include <GLES/gl.h>
+#include "winsys.h"
+
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
+
+struct gear {
+ GLuint vbo;
+ GLfloat *vertices;
+ GLsizei stride;
+
+ GLint num_teeth;
+};
+
+static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
+static struct gear gears[3];
+static GLfloat angle = 0.0;
+
+/*
+ * Initialize a gear wheel.
+ *
+ * Input: gear - gear to initialize
+ * inner_radius - radius of hole at center
+ * outer_radius - radius at center of teeth
+ * width - width of gear
+ * teeth - number of teeth
+ * tooth_depth - depth of tooth
+ */
+static void
+init_gear(struct gear *gear, GLfloat inner_radius, GLfloat outer_radius,
+ GLfloat width, GLint teeth, GLfloat tooth_depth)
+{
+ GLfloat r0, r1, r2;
+ GLfloat a0, da;
+ GLint verts_per_tooth, total_verts, total_size;
+ GLint count, i;
+ GLfloat *verts;
+
+ r0 = inner_radius;
+ r1 = outer_radius - tooth_depth / 2.0;
+ r2 = outer_radius + tooth_depth / 2.0;
+
+ a0 = 2.0 * M_PI / teeth;
+ da = a0 / 4.0;
+
+ gear->vbo = 0;
+ gear->vertices = NULL;
+ gear->stride = sizeof(GLfloat) * 6; /* XYZ + normal */
+ gear->num_teeth = teeth;
+
+ verts_per_tooth = 10 + 4;
+ total_verts = teeth * verts_per_tooth;
+ total_size = total_verts * gear->stride;
+
+ verts = malloc(total_size);
+ if (!verts) {
+ printf("failed to allocate vertices\n");
+ return;
+ }
+
+#define GEAR_VERT(r, n, sign) \
+ do { \
+ verts[count * 6 + 0] = (r) * vx[n]; \
+ verts[count * 6 + 1] = (r) * vy[n]; \
+ verts[count * 6 + 2] = (sign) * width * 0.5; \
+ verts[count * 6 + 3] = normal[0]; \
+ verts[count * 6 + 4] = normal[1]; \
+ verts[count * 6 + 5] = normal[2]; \
+ count++; \
+ } while (0)
+
+ count = 0;
+ for (i = 0; i < teeth; i++) {
+ GLfloat normal[3];
+ GLfloat vx[5], vy[5];
+ GLfloat u, v;
+
+ normal[0] = 0.0;
+ normal[1] = 0.0;
+ normal[2] = 0.0;
+
+ vx[0] = cos(i * a0 + 0 * da);
+ vy[0] = sin(i * a0 + 0 * da);
+ vx[1] = cos(i * a0 + 1 * da);
+ vy[1] = sin(i * a0 + 1 * da);
+ vx[2] = cos(i * a0 + 2 * da);
+ vy[2] = sin(i * a0 + 2 * da);
+ vx[3] = cos(i * a0 + 3 * da);
+ vy[3] = sin(i * a0 + 3 * da);
+ vx[4] = cos(i * a0 + 4 * da);
+ vy[4] = sin(i * a0 + 4 * da);
+
+ /* outward faces of a tooth, 10 verts */
+ normal[0] = vx[0];
+ normal[1] = vy[0];
+ GEAR_VERT(r1, 0, 1);
+ GEAR_VERT(r1, 0, -1);
+
+ u = r2 * vx[1] - r1 * vx[0];
+ v = r2 * vy[1] - r1 * vy[0];
+ normal[0] = v;
+ normal[1] = -u;
+ GEAR_VERT(r2, 1, 1);
+ GEAR_VERT(r2, 1, -1);
+
+ normal[0] = vx[0];
+ normal[1] = vy[0];
+ GEAR_VERT(r2, 2, 1);
+ GEAR_VERT(r2, 2, -1);
+
+ u = r1 * vx[3] - r2 * vx[2];
+ v = r1 * vy[3] - r2 * vy[2];
+ normal[0] = v;
+ normal[1] = -u;
+ GEAR_VERT(r1, 3, 1);
+ GEAR_VERT(r1, 3, -1);
+
+ normal[0] = vx[0];
+ normal[1] = vy[0];
+ GEAR_VERT(r1, 4, 1);
+ GEAR_VERT(r1, 4, -1);
+
+ /* inside radius cylinder, 4 verts */
+ normal[0] = -vx[4];
+ normal[1] = -vy[4];
+ GEAR_VERT(r0, 4, 1);
+ GEAR_VERT(r0, 4, -1);
+
+ normal[0] = -vx[0];
+ normal[1] = -vy[0];
+ GEAR_VERT(r0, 0, 1);
+ GEAR_VERT(r0, 0, -1);
+
+ assert(count % verts_per_tooth == 0);
+ }
+ assert(count == total_verts);
+#undef GEAR_VERT
+
+ gear->vertices = verts;
+
+ /* setup VBO */
+ glGenBuffers(1, &gear->vbo);
+ if (gear->vbo) {
+ glBindBuffer(GL_ARRAY_BUFFER, gear->vbo);
+ glBufferData(GL_ARRAY_BUFFER, total_size, verts, GL_STATIC_DRAW);
+ }
+}
+
+
+static void
+draw_gear(const struct gear *gear)
+{
+ GLint i;
+
+ if (!gear->vbo && !gear->vertices) {
+ printf("nothing to be drawn\n");
+ return;
+ }
+
+ if (gear->vbo) {
+ glBindBuffer(GL_ARRAY_BUFFER, gear->vbo);
+ glVertexPointer(3, GL_FLOAT, gear->stride, (const GLvoid *) 0);
+ glNormalPointer(GL_FLOAT, gear->stride, (const GLvoid *) (sizeof(GLfloat) * 3));
+ } else {
+ glBindBuffer(GL_ARRAY_BUFFER, 0);
+ glVertexPointer(3, GL_FLOAT, gear->stride, gear->vertices);
+ glNormalPointer(GL_FLOAT, gear->stride, gear->vertices + 3);
+ }
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+
+ for (i = 0; i < gear->num_teeth; i++) {
+ const GLint base = (10 + 4) * i;
+ GLushort indices[7];
+
+ glShadeModel(GL_FLAT);
+
+ /* front face */
+ indices[0] = base + 12;
+ indices[1] = base + 0;
+ indices[2] = base + 2;
+ indices[3] = base + 4;
+ indices[4] = base + 6;
+ indices[5] = base + 8;
+ indices[6] = base + 10;
+
+ glNormal3f(0.0, 0.0, 1.0);
+ glDrawElements(GL_TRIANGLE_FAN, 7, GL_UNSIGNED_SHORT, indices);
+
+ /* back face */
+ indices[0] = base + 13;
+ indices[1] = base + 11;
+ indices[2] = base + 9;
+ indices[3] = base + 7;
+ indices[4] = base + 5;
+ indices[5] = base + 3;
+ indices[6] = base + 1;
+
+ glNormal3f(0.0, 0.0, -1.0);
+ glDrawElements(GL_TRIANGLE_FAN, 7, GL_UNSIGNED_SHORT, indices);
+
+ glEnableClientState(GL_NORMAL_ARRAY);
+
+ /* outward face of a tooth */
+ glDrawArrays(GL_TRIANGLE_STRIP, base, 10);
+
+ /* inside radius cylinder */
+ glShadeModel(GL_SMOOTH);
+ glDrawArrays(GL_TRIANGLE_STRIP, base + 10, 4);
+
+ glDisableClientState(GL_NORMAL_ARRAY);
+ }
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+}
+
+
+static void
+gears_draw(void *data)
+{
+ static const GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
+ static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+ static const GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1.0, 0.0, 0.0);
+ glRotatef(view_roty, 0.0, 1.0, 0.0);
+ glRotatef(view_rotz, 0.0, 0.0, 1.0);
+
+ glPushMatrix();
+ glTranslatef(-3.0, -2.0, 0.0);
+ glRotatef(angle, 0.0, 0.0, 1.0);
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+ draw_gear(&gears[0]);
+
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(3.1, -2.0, 0.0);
+ glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, green);
+ draw_gear(&gears[1]);
+
+ glPopMatrix();
+
+ glPushMatrix();
+ glTranslatef(-3.1, 4.2, 0.0);
+ glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
+ draw_gear(&gears[2]);
+
+ glPopMatrix();
+
+ glPopMatrix();
+
+ /* advance rotation for next frame */
+ angle += 0.5; /* 0.5 degree per frame */
+ if (angle > 3600.0)
+ angle -= 3600.0;
+}
+
+
+static void gears_fini(void)
+{
+ GLint i;
+ for (i = 0; i < 3; i++) {
+ struct gear *gear = &gears[i];
+ if (gear->vbo) {
+ glDeleteBuffers(1, &gear->vbo);
+ gear->vbo = 0;
+ }
+ if (gear->vertices) {
+ free(gear->vertices);
+ gear->vertices = NULL;
+ }
+ }
+}
+
+
+static void gears_init(void)
+{
+ static const GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
+
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_NORMALIZE);
+
+ init_gear(&gears[0], 1.0, 4.0, 1.0, 20, 0.7);
+ init_gear(&gears[1], 0.5, 2.0, 2.0, 10, 0.7);
+ init_gear(&gears[2], 1.3, 2.0, 0.5, 10, 0.7);
+}
+
+
+/* new window size or exposure */
+static void
+gears_reshape(int width, int height)
+{
+ GLfloat h = (GLfloat) height / (GLfloat) width;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-1.0, 1.0, -h, h, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -40.0);
+}
+
+
+static void gears_run(void)
+{
+ winsysRun(5.0, gears_draw, NULL);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ EGLint width, height;
+
+ if (!winsysInitScreen())
+ exit(1);
+ winsysQueryScreenSize(&width, &height);
+
+ gears_init();
+ gears_reshape(width, height);
+ gears_run();
+ gears_fini();
+
+ winsysFiniScreen();
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
+ *
+ * Based on egltri by
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * Copyright (C) 2008 Brian Paul All Rights Reserved.
+ * Copyright (C) 2008 Jakob Bornecrantz All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GLES/gl.h>
+#include "winsys.h"
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+static void tri_init()
+{
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+}
+
+static void tri_reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -10.0);
+}
+
+static void tri_draw(void *data)
+{
+ static const GLfloat verts[3][2] = {
+ { -1, -1 },
+ { 1, -1 },
+ { 0, 1 }
+ };
+ static const GLfloat colors[3][4] = {
+ { 1, 0, 0, 1 },
+ { 0, 1, 0, 1 },
+ { 0, 0, 1, 1 }
+ };
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+
+ {
+ glVertexPointer(2, GL_FLOAT, 0, verts);
+ glColorPointer(4, GL_FLOAT, 0, colors);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+ }
+
+ glPopMatrix();
+}
+
+static void tri_run(void)
+{
+ winsysRun(3.0, tri_draw, NULL);
+}
+
+int main(int argc, char *argv[])
+{
+ EGLint width, height;
+ GLboolean printInfo = GL_FALSE;
+ int i;
+
+ /* parse cmd line args */
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ printf("Warning: unknown parameter: %s\n", argv[i]);
+ }
+ }
+
+ if (!winsysInitScreen())
+ exit(1);
+ winsysQueryScreenSize(&width, &height);
+
+ if (printInfo) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+
+ tri_init();
+ tri_reshape(width, height);
+ tri_run();
+
+ winsysFiniScreen();
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
+ *
+ * Based on eglgears by
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <sys/time.h>
+
+#define EGL_EGLEXT_PROTOTYPES
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include "winsys.h"
+
+#define MAX_MODES 100
+
+static struct {
+ EGLBoolean verbose;
+
+ EGLDisplay dpy;
+ EGLConfig conf;
+
+ EGLScreenMESA screen;
+ EGLModeMESA mode;
+ EGLint width, height;
+
+ EGLContext ctx;
+ EGLSurface surf;
+} screen;
+
+
+static EGLBoolean
+init_screen(void)
+{
+ EGLModeMESA modes[MAX_MODES];
+ EGLint num_screens, num_modes;
+ EGLint width, height, best_mode;
+ EGLint i;
+
+ if (!eglGetScreensMESA(screen.dpy, &screen.screen, 1, &num_screens) ||
+ !num_screens) {
+ printf("eglGetScreensMESA failed\n");
+ return EGL_FALSE;
+ }
+
+ if (!eglGetModesMESA(screen.dpy, screen.screen, modes, MAX_MODES,
+ &num_modes) ||
+ !num_modes) {
+ printf("eglGetModesMESA failed!\n");
+ return EGL_FALSE;
+ }
+
+ printf("Found %d modes:\n", num_modes);
+
+ best_mode = 0;
+ width = 0;
+ height = 0;
+ for (i = 0; i < num_modes; i++) {
+ EGLint w, h;
+ eglGetModeAttribMESA(screen.dpy, modes[i], EGL_WIDTH, &w);
+ eglGetModeAttribMESA(screen.dpy, modes[i], EGL_HEIGHT, &h);
+ printf("%3d: %d x %d\n", i, w, h);
+ if (w > width && h > height) {
+ width = w;
+ height = h;
+ best_mode = i;
+ }
+ }
+
+ screen.mode = modes[best_mode];
+ screen.width = width;
+ screen.height = height;
+
+ return EGL_TRUE;
+}
+
+
+static EGLBoolean
+init_display(void)
+{
+ EGLint maj, min;
+ const char *exts;
+ const EGLint attribs[] = {
+ EGL_SURFACE_TYPE, 0x0, /* should be EGL_SCREEN_BIT_MESA */
+ EGL_RENDERABLE_TYPE, 0x0, /* should be EGL_OPENGL_ES_BIT */
+ EGL_NONE
+ };
+ EGLint num_configs;
+
+ screen.dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ if (!screen.dpy) {
+ printf("eglGetDisplay failed\n");
+ return EGL_FALSE;
+ }
+
+ if (!eglInitialize(screen.dpy, &maj, &min)) {
+ printf("eglInitialize failed\n");
+ return EGL_FALSE;
+ }
+
+ printf("EGL_VERSION = %s\n", eglQueryString(screen.dpy, EGL_VERSION));
+ printf("EGL_VENDOR = %s\n", eglQueryString(screen.dpy, EGL_VENDOR));
+
+ exts = eglQueryString(screen.dpy, EGL_EXTENSIONS);
+ assert(exts);
+
+ if (!strstr(exts, "EGL_MESA_screen_surface")) {
+ printf("EGL_MESA_screen_surface is not supported\n");
+ return EGL_FALSE;
+ }
+
+ if (!eglChooseConfig(screen.dpy, attribs, &screen.conf, 1,
+ &num_configs) ||
+ !num_configs) {
+ printf("eglChooseConfig failed\n");
+ return EGL_FALSE;
+ }
+
+ return EGL_TRUE;
+}
+
+
+EGLBoolean
+winsysInitScreen(void)
+{
+ EGLint surf_attribs[20];
+ EGLint i;
+ EGLBoolean ok;
+
+ if (!init_display())
+ goto fail;
+ if (!init_screen())
+ goto fail;
+
+ /* create context */
+ screen.ctx = eglCreateContext(screen.dpy, screen.conf,
+ EGL_NO_CONTEXT, NULL);
+ if (screen.ctx == EGL_NO_CONTEXT) {
+ printf("eglCreateContext failed\n");
+ goto fail;
+ }
+
+ i = 0;
+ surf_attribs[i++] = EGL_WIDTH;
+ surf_attribs[i++] = screen.width;
+ surf_attribs[i++] = EGL_HEIGHT;
+ surf_attribs[i++] = screen.height;
+ surf_attribs[i++] = EGL_NONE;
+
+ /* create surface */
+ printf("Using screen size: %d x %d\n", screen.width, screen.height);
+ screen.surf = eglCreateScreenSurfaceMESA(screen.dpy, screen.conf,
+ surf_attribs);
+ if (screen.surf == EGL_NO_SURFACE) {
+ printf("eglCreateScreenSurfaceMESA failed\n");
+ goto fail;
+ }
+
+ ok = eglMakeCurrent(screen.dpy, screen.surf, screen.surf, screen.ctx);
+ if (!ok) {
+ printf("eglMakeCurrent failed\n");
+ goto fail;
+ }
+
+ ok = eglShowScreenSurfaceMESA(screen.dpy, screen.screen,
+ screen.surf, screen.mode);
+ if (!ok) {
+ printf("eglShowScreenSurfaceMESA failed\n");
+ goto fail;
+ }
+
+ return EGL_TRUE;
+
+fail:
+ winsysFiniScreen();
+ return EGL_FALSE;
+}
+
+
+EGLBoolean
+winsysQueryScreenSize(EGLint *width, EGLint *height)
+{
+ if (!screen.dpy)
+ return EGL_FALSE;
+
+ if (width)
+ *width = screen.width;
+ if (height)
+ *height = screen.height;
+
+ return EGL_TRUE;
+}
+
+
+void
+winsysFiniScreen(void)
+{
+ if (screen.dpy) {
+ eglMakeCurrent(screen.dpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
+ EGL_NO_CONTEXT);
+ if (screen.surf != EGL_NO_SURFACE)
+ eglDestroySurface(screen.dpy, screen.surf);
+ if (screen.ctx != EGL_NO_CONTEXT)
+ eglDestroyContext(screen.dpy, screen.ctx);
+ eglTerminate(screen.dpy);
+
+ memset(&screen, 0, sizeof(screen));
+ }
+}
+
+
+void
+winsysSwapBuffers(void)
+{
+ eglSwapBuffers(screen.dpy, screen.surf);
+}
+
+
+/* return current time (in seconds) */
+double
+winsysNow(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
+}
+
+
+void
+winsysRun(double seconds, void (*draw_frame)(void *data), void *data)
+{
+ double begin, end, last_frame, duration;
+ EGLint num_frames = 0;
+
+ begin = winsysNow();
+ end = begin + seconds;
+
+ last_frame = begin;
+ while (last_frame < end) {
+ draw_frame(data);
+ winsysSwapBuffers();
+ last_frame = winsysNow();
+ num_frames++;
+ }
+
+ duration = last_frame - begin;
+ printf("%d frames in %3.1f seconds = %6.3f FPS\n",
+ num_frames, duration, (double) num_frames / duration);
+}
--- /dev/null
+/*
+ * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _WINSYS_H_
+#define _WINSYS_H_
+
+#include <EGL/egl.h>
+
+EGLBoolean winsysInitScreen(void);
+EGLBoolean winsysQueryScreenSize(EGLint *width, EGLint *height);
+void winsysFiniScreen(void);
+
+void winsysSwapBuffers(void);
+double winsysNow(void);
+
+void winsysRun(double seconds, void (*draw_frame)(void *data), void *data);
+
+#endif /* _WINSYS_H_ */
--- /dev/null
+/*
+ * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
+ */
+
+/*
+ * Draw a lit, textured torus with X/EGL and OpenGL ES 1.x
+ * Brian Paul
+ * July 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+static const struct {
+ GLenum internalFormat;
+ const char *name;
+ GLuint num_entries;
+ GLuint size;
+} cpal_formats[] = {
+ { GL_PALETTE4_RGB8_OES, "GL_PALETTE4_RGB8_OES", 16, 3 },
+ { GL_PALETTE4_RGBA8_OES, "GL_PALETTE4_RGBA8_OES", 16, 4 },
+ { GL_PALETTE4_R5_G6_B5_OES, "GL_PALETTE4_R5_G6_B5_OES", 16, 2 },
+ { GL_PALETTE4_RGBA4_OES, "GL_PALETTE4_RGBA4_OES", 16, 2 },
+ { GL_PALETTE4_RGB5_A1_OES, "GL_PALETTE4_RGB5_A1_OES", 16, 2 },
+ { GL_PALETTE8_RGB8_OES, "GL_PALETTE8_RGB8_OES", 256, 3 },
+ { GL_PALETTE8_RGBA8_OES, "GL_PALETTE8_RGBA8_OES", 256, 4 },
+ { GL_PALETTE8_R5_G6_B5_OES, "GL_PALETTE8_R5_G6_B5_OES", 256, 2 },
+ { GL_PALETTE8_RGBA4_OES, "GL_PALETTE8_RGBA4_OES", 256, 2 },
+ { GL_PALETTE8_RGB5_A1_OES, "GL_PALETTE8_RGB5_A1_OES", 256, 2 }
+};
+#define NUM_CPAL_FORMATS (sizeof(cpal_formats) / sizeof(cpal_formats[0]))
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+static GLint tex_format = NUM_CPAL_FORMATS;
+
+
+static void
+Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
+{
+ n[0] = nx;
+ n[1] = ny;
+ n[2] = nz;
+}
+
+static void
+Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
+{
+ v[0] = vx;
+ v[1] = vy;
+ v[2] = vz;
+}
+
+static void
+Texcoord(GLfloat *v, GLfloat s, GLfloat t)
+{
+ v[0] = s;
+ v[1] = t;
+}
+
+
+/* Borrowed from glut, adapted */
+static void
+draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
+{
+ int i, j;
+ GLfloat theta, phi, theta1;
+ GLfloat cosTheta, sinTheta;
+ GLfloat cosTheta1, sinTheta1;
+ GLfloat ringDelta, sideDelta;
+ GLfloat varray[100][3], narray[100][3], tarray[100][2];
+ int vcount;
+
+ glVertexPointer(3, GL_FLOAT, 0, varray);
+ glNormalPointer(GL_FLOAT, 0, narray);
+ glTexCoordPointer(2, GL_FLOAT, 0, tarray);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_NORMAL_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ ringDelta = 2.0 * M_PI / rings;
+ sideDelta = 2.0 * M_PI / nsides;
+
+ theta = 0.0;
+ cosTheta = 1.0;
+ sinTheta = 0.0;
+ for (i = rings - 1; i >= 0; i--) {
+ theta1 = theta + ringDelta;
+ cosTheta1 = cos(theta1);
+ sinTheta1 = sin(theta1);
+
+ vcount = 0; /* glBegin(GL_QUAD_STRIP); */
+
+ phi = 0.0;
+ for (j = nsides; j >= 0; j--) {
+ GLfloat s0, s1, t;
+ GLfloat cosPhi, sinPhi, dist;
+
+ phi += sideDelta;
+ cosPhi = cos(phi);
+ sinPhi = sin(phi);
+ dist = R + r * cosPhi;
+
+ s0 = 20.0 * theta / (2.0 * M_PI);
+ s1 = 20.0 * theta1 / (2.0 * M_PI);
+ t = 8.0 * phi / (2.0 * M_PI);
+
+ Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+ Texcoord(tarray[vcount], s1, t);
+ Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
+ vcount++;
+
+ Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+ Texcoord(tarray[vcount], s0, t);
+ Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi);
+ vcount++;
+ }
+
+ /*glEnd();*/
+ assert(vcount <= 100);
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
+
+ theta = theta1;
+ cosTheta = cosTheta1;
+ sinTheta = sinTheta1;
+ }
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_NORMAL_ARRAY);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+
+static void
+draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+ glScalef(0.5, 0.5, 0.5);
+
+ draw_torus(1.0, 3.0, 30, 60);
+
+ glPopMatrix();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+
+#ifdef GL_VERSION_ES_CM_1_0
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+ glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static GLint
+make_cpal_texture(GLint idx)
+{
+#define SZ 64
+ GLenum internalFormat = GL_PALETTE4_RGB8_OES + idx;
+ GLenum Filter = GL_LINEAR;
+ GLubyte palette[256 * 4 + SZ * SZ];
+ GLubyte *indices;
+ GLsizei image_size;
+ GLuint i, j;
+ GLuint packed_indices = 0;
+
+ assert(cpal_formats[idx].internalFormat == internalFormat);
+
+ /* init palette */
+ switch (internalFormat) {
+ case GL_PALETTE4_RGB8_OES:
+ case GL_PALETTE8_RGB8_OES:
+ /* first entry */
+ palette[0] = 255;
+ palette[1] = 255;
+ palette[2] = 255;
+ /* second entry */
+ palette[3] = 127;
+ palette[4] = 127;
+ palette[5] = 127;
+ break;
+ case GL_PALETTE4_RGBA8_OES:
+ case GL_PALETTE8_RGBA8_OES:
+ /* first entry */
+ palette[0] = 255;
+ palette[1] = 255;
+ palette[2] = 255;
+ palette[3] = 255;
+ /* second entry */
+ palette[4] = 127;
+ palette[5] = 127;
+ palette[6] = 127;
+ palette[7] = 255;
+ break;
+ case GL_PALETTE4_R5_G6_B5_OES:
+ case GL_PALETTE8_R5_G6_B5_OES:
+ {
+ GLushort *pal = (GLushort *) palette;
+ /* first entry */
+ pal[0] = (31 << 11 | 63 << 5 | 31);
+ /* second entry */
+ pal[1] = (15 << 11 | 31 << 5 | 15);
+ }
+ break;
+ case GL_PALETTE4_RGBA4_OES:
+ case GL_PALETTE8_RGBA4_OES:
+ {
+ GLushort *pal = (GLushort *) palette;
+ /* first entry */
+ pal[0] = (15 << 12 | 15 << 8 | 15 << 4 | 15);
+ /* second entry */
+ pal[1] = (7 << 12 | 7 << 8 | 7 << 4 | 15);
+ }
+ break;
+ case GL_PALETTE4_RGB5_A1_OES:
+ case GL_PALETTE8_RGB5_A1_OES:
+ {
+ GLushort *pal = (GLushort *) palette;
+ /* first entry */
+ pal[0] = (31 << 11 | 31 << 6 | 31 << 1 | 1);
+ /* second entry */
+ pal[1] = (15 << 11 | 15 << 6 | 15 << 1 | 1);
+ }
+ break;
+ }
+
+ image_size = cpal_formats[idx].size * cpal_formats[idx].num_entries;
+ indices = palette + image_size;
+ for (i = 0; i < SZ; i++) {
+ for (j = 0; j < SZ; j++) {
+ GLfloat d;
+ GLint index;
+ d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
+ d = sqrt(d);
+ index = (d < SZ / 3) ? 0 : 1;
+
+ if (cpal_formats[idx].num_entries == 16) {
+ /* 4-bit indices packed in GLubyte */
+ packed_indices |= index << (4 * (1 - (j % 2)));
+ if (j % 2) {
+ *(indices + (i * SZ + j - 1) / 2) = packed_indices & 0xff;
+ packed_indices = 0;
+ image_size += 1;
+ }
+ }
+ else {
+ /* 8-bit indices */
+ *(indices + i * SZ + j) = index;
+ image_size += 1;
+ }
+ }
+ }
+
+ glActiveTexture(GL_TEXTURE0); /* unit 0 */
+ glBindTexture(GL_TEXTURE_2D, 42);
+ glCompressedTexImage2D(GL_TEXTURE_2D, 0, internalFormat, SZ, SZ, 0,
+ image_size, palette);
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+#undef SZ
+
+ return image_size;
+}
+
+
+static GLint
+make_texture(void)
+{
+#define SZ 64
+ GLenum Filter = GL_LINEAR;
+ GLubyte image[SZ][SZ][4];
+ GLuint i, j;
+
+ for (i = 0; i < SZ; i++) {
+ for (j = 0; j < SZ; j++) {
+ GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
+ d = sqrt(d);
+ if (d < SZ/3) {
+ image[i][j][0] = 255;
+ image[i][j][1] = 255;
+ image[i][j][2] = 255;
+ image[i][j][3] = 255;
+ }
+ else {
+ image[i][j][0] = 127;
+ image[i][j][1] = 127;
+ image[i][j][2] = 127;
+ image[i][j][3] = 255;
+ }
+ }
+ }
+
+ glActiveTexture(GL_TEXTURE0); /* unit 0 */
+ glBindTexture(GL_TEXTURE_2D, 42);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, image);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+#undef SZ
+
+ return sizeof(image);
+}
+
+
+
+static void
+init(void)
+{
+ static const GLfloat red[4] = {1, 0, 0, 0};
+ static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+ static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
+ static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
+ static const GLfloat pos[4] = {20, 20, 50, 1};
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+ glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
+ glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
+
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glLightfv(GL_LIGHT0, GL_POSITION, pos);
+ glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
+ glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
+
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+ glEnable(GL_DEPTH_TEST);
+
+ make_texture();
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+ eglBindAPI(EGL_OPENGL_ES_API);
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+ EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+ int anim = 1;
+
+ while (1) {
+ int redraw = 0;
+
+ if (!anim || XPending(dpy)) {
+ XEvent event;
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else if (code == XK_t) {
+ GLint size;
+ tex_format = (tex_format + 1) % (NUM_CPAL_FORMATS + 1);
+ if (tex_format < NUM_CPAL_FORMATS) {
+ size = make_cpal_texture(tex_format);
+ printf("Using %s (%d bytes)\n",
+ cpal_formats[tex_format].name, size);
+ }
+ else {
+ size = make_texture();
+ printf("Using uncompressed texture (%d bytes)\n", size);
+ }
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == ' ') {
+ anim = !anim;
+ }
+ else if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+ }
+
+ if (anim) {
+ view_rotx += 1.0;
+ view_roty += 2.0;
+ redraw = 1;
+ }
+
+ if (redraw) {
+ draw();
+ eglSwapBuffers(egl_dpy, egl_surf);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 300, winHeight = 300;
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "torus", 0, 0, winWidth, winHeight,
+ &win, &egl_ctx, &egl_surf);
+
+ XMapWindow(x_dpy, win);
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+
+ init();
+
+ /* Set initial projection/viewing transformation.
+ * We can't be sure we'll get a ConfigureNotify event when the window
+ * first appears.
+ */
+ reshape(winWidth, winHeight);
+
+ event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Draw a triangle with X/EGL and OpenGL ES 1.x
+ * Brian Paul
+ * 5 June 2008
+ */
+
+#define USE_FULL_GL 0
+
+#define USE_FIXED_POINT 0
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#if USE_FULL_GL
+#include <GL/gl.h> /* use full OpenGL */
+#else
+#include <GLES/gl.h> /* use OpenGL ES 1.x */
+#include <GLES/glext.h>
+#endif
+#include <EGL/egl.h>
+
+
+#define FLOAT_TO_FIXED(X) ((X) * 65535.0)
+
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+static void
+draw(void)
+{
+#if USE_FIXED_POINT
+ static const GLfixed verts[3][2] = {
+ { -65536, -65536 },
+ { 65536, -65536 },
+ { 0, 65536 }
+ };
+ static const GLfixed colors[3][4] = {
+ { 65536, 0, 0, 65536 },
+ { 0, 65536, 0 , 65536},
+ { 0, 0, 65536 , 65536}
+ };
+#else
+ static const GLfloat verts[3][2] = {
+ { -1, -1 },
+ { 1, -1 },
+ { 0, 1 }
+ };
+ static const GLfloat colors[3][4] = {
+ { 1, 0, 0, 1 },
+ { 0, 1, 0, 1 },
+ { 0, 0, 1, 1 }
+ };
+#endif
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+
+ {
+#if USE_FIXED_POINT
+ glVertexPointer(2, GL_FIXED, 0, verts);
+ glColorPointer(4, GL_FIXED, 0, colors);
+#else
+ glVertexPointer(2, GL_FLOAT, 0, verts);
+ glColorPointer(4, GL_FLOAT, 0, colors);
+#endif
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ /* draw triangle */
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ /* draw some points */
+ glPointSizex(FLOAT_TO_FIXED(15.5));
+ glDrawArrays(GL_POINTS, 0, 3);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+ }
+
+ if (0) {
+ /* test code */
+ GLfixed size;
+ glGetFixedv(GL_POINT_SIZE, &size);
+ printf("GL_POINT_SIZE = 0x%x %f\n", size, size / 65536.0);
+ }
+
+ glPopMatrix();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+#ifdef GL_VERSION_ES_CM_1_0
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+ glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -10.0);
+}
+
+
+static void
+test_query_matrix(void)
+{
+ PFNGLQUERYMATRIXXOESPROC procQueryMatrixx;
+ typedef void (*voidproc)();
+ GLfixed mantissa[16];
+ GLint exponent[16];
+ GLbitfield rv;
+ int i;
+
+ procQueryMatrixx = (PFNGLQUERYMATRIXXOESPROC) eglGetProcAddress("glQueryMatrixxOES");
+ assert(procQueryMatrixx);
+ /* Actually try out this one */
+ rv = (*procQueryMatrixx)(mantissa, exponent);
+ for (i = 0; i < 16; i++) {
+ if (rv & (1<<i)) {
+ printf("matrix[%d] invalid\n", i);
+ }
+ else {
+ printf("matrix[%d] = %f * 2^(%d)\n", i, mantissa[i]/65536.0, exponent[i]);
+ }
+ }
+ assert(!eglGetProcAddress("glFoo"));
+}
+
+
+static void
+init(void)
+{
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+
+ if (0)
+ test_query_matrix();
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+#if USE_FULL_GL
+ eglBindAPI(EGL_OPENGL_API);
+#else
+ eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+ EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+ while (1) {
+ int redraw = 0;
+ XEvent event;
+
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+
+ if (redraw) {
+ draw();
+ eglSwapBuffers(egl_dpy, egl_surf);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 300, winHeight = 300;
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ static struct {
+ char *name;
+ GLenum value;
+ enum {GetString, GetInteger} type;
+ } info_items[] = {
+ {"GL_RENDERER", GL_RENDERER, GetString},
+ {"GL_VERSION", GL_VERSION, GetString},
+ {"GL_VENDOR", GL_VENDOR, GetString},
+ {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
+ {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
+ {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
+ };
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "OpenGL ES 1.x tri", 0, 0, winWidth, winHeight,
+ &win, &egl_ctx, &egl_surf);
+
+ XMapWindow(x_dpy, win);
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
+ switch (info_items[i].type) {
+ case GetString:
+ printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
+ break;
+ case GetInteger: {
+ GLint rv = -1;
+ glGetIntegerv(info_items[i].value, &rv);
+ printf("%s = %d\n", info_items[i].name, rv);
+ break;
+ }
+ }
+ }
+ };
+ init();
+
+ /* Set initial projection/viewing transformation.
+ * We can't be sure we'll get a ConfigureNotify event when the window
+ * first appears.
+ */
+ reshape(winWidth, winHeight);
+
+ event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright (C) 2008 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Test drawing to two windows.
+ * Brian Paul
+ * August 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+static int WinWidth[2] = {150, 300}, WinHeight[2] = {150, 300};
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+ glViewport(0, 0, (GLint) width, (GLint) height);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+#ifdef GL_VERSION_ES_CM_1_0
+ glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+ glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -10.0);
+}
+
+
+static void
+draw(int win)
+{
+ static const GLfloat verts[3][2] = {
+ { -1, -1 },
+ { 1, -1 },
+ { 0, 1 }
+ };
+ static const GLfloat colors[3][4] = {
+ { 1, 0, 0, 1 },
+ { 0, 1, 0, 1 },
+ { 0, 0, 1, 1 }
+ };
+
+ assert(win == 0 || win == 1);
+
+ reshape(WinWidth[win], WinHeight[win]);
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotatef(view_rotx, 1, 0, 0);
+ glRotatef(view_roty, 0, 1, 0);
+ glRotatef(view_rotz, 0, 0, 1);
+
+ /* draw triangle */
+ {
+ glVertexPointer(2, GL_FLOAT, 0, verts);
+ glColorPointer(4, GL_FLOAT, 0, colors);
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_COLOR_ARRAY);
+ }
+
+ glPopMatrix();
+}
+
+
+static void
+init(void)
+{
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_NONE
+ };
+
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, x, y, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+#if USE_FULL_GL
+ eglBindAPI(EGL_OPENGL_API);
+#else
+ eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+
+ if (ctxRet) {
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+ *ctxRet = ctx;
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+}
+
+
+static void
+event_loop(Display *dpy, Window win1, Window win2,
+ EGLDisplay egl_dpy, EGLSurface egl_surf1, EGLSurface egl_surf2,
+ EGLContext egl_ctx)
+{
+ while (1) {
+ int redraw = 0;
+ int win;
+ XEvent event;
+
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ if (event.xconfigure.window == win1)
+ win = 0;
+ else
+ win = 1;
+ WinWidth[win] = event.xconfigure.width;
+ WinHeight[win] = event.xconfigure.height;
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+
+ if (redraw) {
+ /* win 1 */
+ if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) {
+ printf("Error: eglMakeCurrent(1) failed\n");
+ return;
+ }
+ draw(0);
+ eglSwapBuffers(egl_dpy, egl_surf1);
+
+ /* win 2 */
+ if (!eglMakeCurrent(egl_dpy, egl_surf2, egl_surf2, egl_ctx)) {
+ printf("Error: eglMakeCurrent(2) failed\n");
+ return;
+ }
+ draw(1);
+ eglSwapBuffers(egl_dpy, egl_surf2);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ Display *x_dpy;
+ Window win1, win2;
+ EGLSurface egl_surf1, egl_surf2;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ static struct {
+ char *name;
+ GLenum value;
+ enum {GetString, GetInteger} type;
+ } info_items[] = {
+ {"GL_RENDERER", GL_RENDERER, GetString},
+ {"GL_VERSION", GL_VERSION, GetString},
+ {"GL_VENDOR", GL_VENDOR, GetString},
+ {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
+ {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
+ {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
+ };
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "xegl_two_win #1", 0, 0, WinWidth[0], WinHeight[0],
+ &win1, &egl_ctx, &egl_surf1);
+
+ make_x_window(x_dpy, egl_dpy,
+ "xegl_two_win #2", WinWidth[0] + 50, 0,
+ WinWidth[1], WinHeight[1],
+ &win2, NULL, &egl_surf2);
+
+ XMapWindow(x_dpy, win1);
+
+ XMapWindow(x_dpy, win2);
+
+ if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
+ switch (info_items[i].type) {
+ case GetString:
+ printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
+ break;
+ case GetInteger: {
+ GLint rv = -1;
+ glGetIntegerv(info_items[i].value, &rv);
+ printf("%s = %d\n", info_items[i].name, rv);
+ break;
+ }
+ }
+ }
+ };
+
+ init();
+
+ event_loop(x_dpy, win1, win2, egl_dpy, egl_surf1, egl_surf2, egl_ctx);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf1);
+ eglDestroySurface(egl_dpy, egl_surf2);
+ eglTerminate(egl_dpy);
+
+ XDestroyWindow(x_dpy, win1);
+ XDestroyWindow(x_dpy, win2);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
--- /dev/null
+es2_info.c
+es2_info
+tri
--- /dev/null
+# progs/egl/opengles2/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+
+INCLUDE_DIRS = \
+ -I$(TOP)/include \
+
+HEADERS = $(TOP)/include/GLES/egl.h
+
+
+ES2_LIB_DEPS = \
+ $(TOP)/$(LIB_DIR)/libEGL.so \
+ $(TOP)/$(LIB_DIR)/libGLESv2.so
+
+
+ES2_LIBS = \
+ -L$(TOP)/$(LIB_DIR) -lEGL \
+ -L$(TOP)/$(LIB_DIR) -lGLESv2 $(LIBDRM_LIB) -lX11
+
+PROGRAMS = \
+ es2_info \
+ tri
+
+
+.c.o:
+ $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
+
+
+
+default: $(PROGRAMS)
+
+
+
+es2_info.c: ../opengles1/es1_info.c
+ cp -f $^ $@
+
+es2_info: es2_info.o $(ES2_LIB_DEPS)
+ $(CC) $(CFLAGS) es2_info.o $(ES2_LIBS) -o $@
+
+tri: tri.o $(ES2_LIB_DEPS)
+ $(CC) $(CFLAGS) tri.o $(ES2_LIBS) -o $@
+
+
+
+clean:
+ rm -f *.o *~
+ rm -f $(PROGRAMS)
+ rm -f es2_info.c
+
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ **************************************************************************/
+
+/*
+ * Draw a triangle with X/EGL and OpenGL ES 2.x
+ */
+
+#define USE_FULL_GL 0
+
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#if USE_FULL_GL
+#include <GL/gl.h> /* use full OpenGL */
+#else
+#include <GLES2/gl2.h> /* use OpenGL ES 2.x */
+#endif
+#include <EGL/egl.h>
+
+
+#define FLOAT_TO_FIXED(X) ((X) * 65535.0)
+
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0;
+
+static GLint u_matrix = -1;
+static GLint attr_pos = 0, attr_color = 1;
+
+
+static void
+make_z_rot_matrix(GLfloat angle, GLfloat *m)
+{
+ float c = cos(angle * M_PI / 180.0);
+ float s = sin(angle * M_PI / 180.0);
+ int i;
+ for (i = 0; i < 16; i++)
+ m[i] = 0.0;
+ m[0] = m[5] = m[10] = m[15] = 1.0;
+
+ m[0] = c;
+ m[1] = s;
+ m[4] = -s;
+ m[5] = c;
+}
+
+static void
+make_scale_matrix(GLfloat xs, GLfloat ys, GLfloat zs, GLfloat *m)
+{
+ int i;
+ for (i = 0; i < 16; i++)
+ m[i] = 0.0;
+ m[0] = xs;
+ m[5] = ys;
+ m[10] = zs;
+ m[15] = 1.0;
+}
+
+
+static void
+mul_matrix(GLfloat *prod, const GLfloat *a, const GLfloat *b)
+{
+#define A(row,col) a[(col<<2)+row]
+#define B(row,col) b[(col<<2)+row]
+#define P(row,col) p[(col<<2)+row]
+ GLfloat p[16];
+ GLint i;
+ for (i = 0; i < 4; i++) {
+ const GLfloat ai0=A(i,0), ai1=A(i,1), ai2=A(i,2), ai3=A(i,3);
+ P(i,0) = ai0 * B(0,0) + ai1 * B(1,0) + ai2 * B(2,0) + ai3 * B(3,0);
+ P(i,1) = ai0 * B(0,1) + ai1 * B(1,1) + ai2 * B(2,1) + ai3 * B(3,1);
+ P(i,2) = ai0 * B(0,2) + ai1 * B(1,2) + ai2 * B(2,2) + ai3 * B(3,2);
+ P(i,3) = ai0 * B(0,3) + ai1 * B(1,3) + ai2 * B(2,3) + ai3 * B(3,3);
+ }
+ memcpy(prod, p, sizeof(p));
+#undef A
+#undef B
+#undef PROD
+}
+
+
+static void
+draw(void)
+{
+ static const GLfloat verts[3][2] = {
+ { -1, -1 },
+ { 1, -1 },
+ { 0, 1 }
+ };
+ static const GLfloat colors[3][3] = {
+ { 1, 0, 0 },
+ { 0, 1, 0 },
+ { 0, 0, 1 }
+ };
+ GLfloat mat[16], rot[16], scale[16];
+
+ /* Set modelview/projection matrix */
+ make_z_rot_matrix(view_rotx, rot);
+ make_scale_matrix(0.5, 0.5, 0.5, scale);
+ mul_matrix(mat, rot, scale);
+ glUniformMatrix4fv(u_matrix, 1, GL_FALSE, mat);
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ {
+ glVertexAttribPointer(attr_pos, 2, GL_FLOAT, GL_FALSE, 0, verts);
+ glVertexAttribPointer(attr_color, 3, GL_FLOAT, GL_FALSE, 0, colors);
+ glEnableVertexAttribArray(attr_pos);
+ glEnableVertexAttribArray(attr_color);
+
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+
+ glDisableVertexAttribArray(attr_pos);
+ glDisableVertexAttribArray(attr_color);
+ }
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+ glViewport(0, 0, (GLint) width, (GLint) height);
+}
+
+
+static void
+create_shaders(void)
+{
+ static const char *fragShaderText =
+ "varying vec4 v_color;\n"
+ "void main() {\n"
+ " gl_FragColor = v_color;\n"
+ "}\n";
+ static const char *vertShaderText =
+ "uniform mat4 modelviewProjection;\n"
+ "attribute vec4 pos;\n"
+ "attribute vec4 color;\n"
+ "varying vec4 v_color;\n"
+ "void main() {\n"
+ " gl_Position = modelviewProjection * pos;\n"
+ " v_color = color;\n"
+ "}\n";
+
+ GLuint fragShader, vertShader, program;
+ GLint stat;
+
+ fragShader = glCreateShader(GL_FRAGMENT_SHADER);
+ glShaderSource(fragShader, 1, (const char **) &fragShaderText, NULL);
+ glCompileShader(fragShader);
+ glGetShaderiv(fragShader, GL_COMPILE_STATUS, &stat);
+ if (!stat) {
+ printf("Error: fragment shader did not compile!\n");
+ exit(1);
+ }
+
+ vertShader = glCreateShader(GL_VERTEX_SHADER);
+ glShaderSource(vertShader, 1, (const char **) &vertShaderText, NULL);
+ glCompileShader(vertShader);
+ glGetShaderiv(vertShader, GL_COMPILE_STATUS, &stat);
+ if (!stat) {
+ printf("Error: vertex shader did not compile!\n");
+ exit(1);
+ }
+
+ program = glCreateProgram();
+ glAttachShader(program, fragShader);
+ glAttachShader(program, vertShader);
+ glLinkProgram(program);
+
+ glGetProgramiv(program, GL_LINK_STATUS, &stat);
+ if (!stat) {
+ char log[1000];
+ GLsizei len;
+ glGetProgramInfoLog(program, 1000, &len, log);
+ printf("Error: linking:\n%s\n", log);
+ exit(1);
+ }
+
+ glUseProgram(program);
+
+ if (1) {
+ /* test setting attrib locations */
+ glBindAttribLocation(program, attr_pos, "pos");
+ glBindAttribLocation(program, attr_color, "color");
+ glLinkProgram(program); /* needed to put attribs into effect */
+ }
+ else {
+ /* test automatic attrib locations */
+ attr_pos = glGetAttribLocation(program, "pos");
+ attr_color = glGetAttribLocation(program, "color");
+ }
+
+ u_matrix = glGetUniformLocation(program, "modelviewProjection");
+ printf("Uniform modelviewProjection at %d\n", u_matrix);
+ printf("Attrib pos at %d\n", attr_pos);
+ printf("Attrib color at %d\n", attr_color);
+}
+
+
+static void
+init(void)
+{
+ typedef void (*proc)();
+
+#if 1 /* test code */
+ proc p = eglGetProcAddress("glMapBufferOES");
+ assert(p);
+#endif
+
+ glClearColor(0.4, 0.4, 0.4, 0.0);
+
+ create_shaders();
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+ const char *name,
+ int x, int y, int width, int height,
+ Window *winRet,
+ EGLContext *ctxRet,
+ EGLSurface *surfRet)
+{
+ static const EGLint attribs[] = {
+ EGL_RED_SIZE, 1,
+ EGL_GREEN_SIZE, 1,
+ EGL_BLUE_SIZE, 1,
+ EGL_DEPTH_SIZE, 1,
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+ EGL_NONE
+ };
+ static const EGLint ctx_attribs[] = {
+ EGL_CONTEXT_CLIENT_VERSION, 2,
+ EGL_NONE
+ };
+ int scrnum;
+ XSetWindowAttributes attr;
+ unsigned long mask;
+ Window root;
+ Window win;
+ XVisualInfo *visInfo, visTemplate;
+ int num_visuals;
+ EGLContext ctx;
+ EGLConfig config;
+ EGLint num_configs;
+ EGLint vid;
+
+ scrnum = DefaultScreen( x_dpy );
+ root = RootWindow( x_dpy, scrnum );
+
+ if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+ printf("Error: couldn't get an EGL visual config\n");
+ exit(1);
+ }
+
+ assert(config);
+ assert(num_configs > 0);
+
+ if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+ printf("Error: eglGetConfigAttrib() failed\n");
+ exit(1);
+ }
+
+ /* The X window visual must match the EGL config */
+ visTemplate.visualid = vid;
+ visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+ if (!visInfo) {
+ printf("Error: couldn't get X visual\n");
+ exit(1);
+ }
+
+ /* window attributes */
+ attr.background_pixel = 0;
+ attr.border_pixel = 0;
+ attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+ attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+ mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+ win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+ 0, visInfo->depth, InputOutput,
+ visInfo->visual, mask, &attr );
+
+ /* set hints and properties */
+ {
+ XSizeHints sizehints;
+ sizehints.x = x;
+ sizehints.y = y;
+ sizehints.width = width;
+ sizehints.height = height;
+ sizehints.flags = USSize | USPosition;
+ XSetNormalHints(x_dpy, win, &sizehints);
+ XSetStandardProperties(x_dpy, win, name, name,
+ None, (char **)NULL, 0, &sizehints);
+ }
+
+#if USE_FULL_GL /* XXX fix this when eglBindAPI() works */
+ eglBindAPI(EGL_OPENGL_API);
+#else
+ eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+
+ ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
+ if (!ctx) {
+ printf("Error: eglCreateContext failed\n");
+ exit(1);
+ }
+
+ /* test eglQueryContext() */
+ {
+ EGLint val;
+ eglQueryContext(egl_dpy, ctx, EGL_CONTEXT_CLIENT_VERSION, &val);
+ assert(val == 2);
+ }
+
+ *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+ if (!*surfRet) {
+ printf("Error: eglCreateWindowSurface failed\n");
+ exit(1);
+ }
+
+ /* sanity checks */
+ {
+ EGLint val;
+ eglQuerySurface(egl_dpy, *surfRet, EGL_WIDTH, &val);
+ assert(val == width);
+ eglQuerySurface(egl_dpy, *surfRet, EGL_HEIGHT, &val);
+ assert(val == height);
+ assert(eglGetConfigAttrib(egl_dpy, config, EGL_SURFACE_TYPE, &val));
+ assert(val & EGL_WINDOW_BIT);
+ }
+
+ XFree(visInfo);
+
+ *winRet = win;
+ *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+ EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+ while (1) {
+ int redraw = 0;
+ XEvent event;
+
+ XNextEvent(dpy, &event);
+
+ switch (event.type) {
+ case Expose:
+ redraw = 1;
+ break;
+ case ConfigureNotify:
+ reshape(event.xconfigure.width, event.xconfigure.height);
+ break;
+ case KeyPress:
+ {
+ char buffer[10];
+ int r, code;
+ code = XLookupKeysym(&event.xkey, 0);
+ if (code == XK_Left) {
+ view_roty += 5.0;
+ }
+ else if (code == XK_Right) {
+ view_roty -= 5.0;
+ }
+ else if (code == XK_Up) {
+ view_rotx += 5.0;
+ }
+ else if (code == XK_Down) {
+ view_rotx -= 5.0;
+ }
+ else {
+ r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+ NULL, NULL);
+ if (buffer[0] == 27) {
+ /* escape */
+ return;
+ }
+ }
+ }
+ redraw = 1;
+ break;
+ default:
+ ; /*no-op*/
+ }
+
+ if (redraw) {
+ draw();
+ eglSwapBuffers(egl_dpy, egl_surf);
+ }
+ }
+}
+
+
+static void
+usage(void)
+{
+ printf("Usage:\n");
+ printf(" -display <displayname> set the display to run on\n");
+ printf(" -info display OpenGL renderer info\n");
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ const int winWidth = 300, winHeight = 300;
+ Display *x_dpy;
+ Window win;
+ EGLSurface egl_surf;
+ EGLContext egl_ctx;
+ EGLDisplay egl_dpy;
+ char *dpyName = NULL;
+ GLboolean printInfo = GL_FALSE;
+ EGLint egl_major, egl_minor;
+ int i;
+ const char *s;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-display") == 0) {
+ dpyName = argv[i+1];
+ i++;
+ }
+ else if (strcmp(argv[i], "-info") == 0) {
+ printInfo = GL_TRUE;
+ }
+ else {
+ usage();
+ return -1;
+ }
+ }
+
+ x_dpy = XOpenDisplay(dpyName);
+ if (!x_dpy) {
+ printf("Error: couldn't open display %s\n",
+ dpyName ? dpyName : getenv("DISPLAY"));
+ return -1;
+ }
+
+ egl_dpy = eglGetDisplay(x_dpy);
+ if (!egl_dpy) {
+ printf("Error: eglGetDisplay() failed\n");
+ return -1;
+ }
+
+ if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+ printf("Error: eglInitialize() failed\n");
+ return -1;
+ }
+
+ s = eglQueryString(egl_dpy, EGL_VERSION);
+ printf("EGL_VERSION = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_VENDOR);
+ printf("EGL_VENDOR = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+ printf("EGL_EXTENSIONS = %s\n", s);
+
+ s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+ printf("EGL_CLIENT_APIS = %s\n", s);
+
+ make_x_window(x_dpy, egl_dpy,
+ "OpenGL ES 2.x tri", 0, 0, winWidth, winHeight,
+ &win, &egl_ctx, &egl_surf);
+
+ XMapWindow(x_dpy, win);
+ if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+ printf("Error: eglMakeCurrent() failed\n");
+ return -1;
+ }
+
+ if (printInfo) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+
+ init();
+
+ /* Set initial projection/viewing transformation.
+ * We can't be sure we'll get a ConfigureNotify event when the window
+ * first appears.
+ */
+ reshape(winWidth, winHeight);
+
+ event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+ eglDestroyContext(egl_dpy, egl_ctx);
+ eglDestroySurface(egl_dpy, egl_surf);
+ eglTerminate(egl_dpy);
+
+
+ XDestroyWindow(x_dpy, win);
+ XCloseDisplay(x_dpy);
+
+ return 0;
+}
+++ /dev/null
-screen/gears
-screen/tri
-xegl/bindtex
-xegl/drawtex
-xegl/es1_info
-xegl/msaa
-xegl/pbuffer
-xegl/render_tex
-xegl/torus
-xegl/tri
-xegl/two_win
+++ /dev/null
-# progs/es1/screen/Makefile
-
-TOP = ../../..
-include $(TOP)/configs/current
-
-ES1_CFLAGS = -I$(TOP)/include
-ES1_LIBS = -L$(TOP)/$(LIB_DIR) -lEGL -lGLESv1_CM
-
-ES1_LIB_DEPS = \
- $(TOP)/$(LIB_DIR)/libEGL.so \
- $(TOP)/$(LIB_DIR)/libGLESv1_CM.so
-
-WINSYS_OBJS = winsys.o
-
-PROGRAMS = \
- gears \
- tri
-
-.c.o:
- $(CC) -c $(ES1_CFLAGS) $(CFLAGS) $< -o $@
-
-default: $(PROGRAMS)
-
-gears: gears.o $(WINSYS_OBJS) $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) -o $@ $@.o $(WINSYS_OBJS) $(ES1_LIBS)
-
-tri: tri.o $(WINSYS_OBJS) $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) -o $@ $@.o $(WINSYS_OBJS) $(ES1_LIBS)
-
-clean:
- -rm -f *.o *~
- -rm -f $(PROGRAMS)
+++ /dev/null
-/*
- * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
- *
- * Based on eglgears by
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <math.h>
-#include <assert.h>
-
-#include <GLES/gl.h>
-#include "winsys.h"
-
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-
-struct gear {
- GLuint vbo;
- GLfloat *vertices;
- GLsizei stride;
-
- GLint num_teeth;
-};
-
-static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
-static struct gear gears[3];
-static GLfloat angle = 0.0;
-
-/*
- * Initialize a gear wheel.
- *
- * Input: gear - gear to initialize
- * inner_radius - radius of hole at center
- * outer_radius - radius at center of teeth
- * width - width of gear
- * teeth - number of teeth
- * tooth_depth - depth of tooth
- */
-static void
-init_gear(struct gear *gear, GLfloat inner_radius, GLfloat outer_radius,
- GLfloat width, GLint teeth, GLfloat tooth_depth)
-{
- GLfloat r0, r1, r2;
- GLfloat a0, da;
- GLint verts_per_tooth, total_verts, total_size;
- GLint count, i;
- GLfloat *verts;
-
- r0 = inner_radius;
- r1 = outer_radius - tooth_depth / 2.0;
- r2 = outer_radius + tooth_depth / 2.0;
-
- a0 = 2.0 * M_PI / teeth;
- da = a0 / 4.0;
-
- gear->vbo = 0;
- gear->vertices = NULL;
- gear->stride = sizeof(GLfloat) * 6; /* XYZ + normal */
- gear->num_teeth = teeth;
-
- verts_per_tooth = 10 + 4;
- total_verts = teeth * verts_per_tooth;
- total_size = total_verts * gear->stride;
-
- verts = malloc(total_size);
- if (!verts) {
- printf("failed to allocate vertices\n");
- return;
- }
-
-#define GEAR_VERT(r, n, sign) \
- do { \
- verts[count * 6 + 0] = (r) * vx[n]; \
- verts[count * 6 + 1] = (r) * vy[n]; \
- verts[count * 6 + 2] = (sign) * width * 0.5; \
- verts[count * 6 + 3] = normal[0]; \
- verts[count * 6 + 4] = normal[1]; \
- verts[count * 6 + 5] = normal[2]; \
- count++; \
- } while (0)
-
- count = 0;
- for (i = 0; i < teeth; i++) {
- GLfloat normal[3];
- GLfloat vx[5], vy[5];
- GLfloat u, v;
-
- normal[0] = 0.0;
- normal[1] = 0.0;
- normal[2] = 0.0;
-
- vx[0] = cos(i * a0 + 0 * da);
- vy[0] = sin(i * a0 + 0 * da);
- vx[1] = cos(i * a0 + 1 * da);
- vy[1] = sin(i * a0 + 1 * da);
- vx[2] = cos(i * a0 + 2 * da);
- vy[2] = sin(i * a0 + 2 * da);
- vx[3] = cos(i * a0 + 3 * da);
- vy[3] = sin(i * a0 + 3 * da);
- vx[4] = cos(i * a0 + 4 * da);
- vy[4] = sin(i * a0 + 4 * da);
-
- /* outward faces of a tooth, 10 verts */
- normal[0] = vx[0];
- normal[1] = vy[0];
- GEAR_VERT(r1, 0, 1);
- GEAR_VERT(r1, 0, -1);
-
- u = r2 * vx[1] - r1 * vx[0];
- v = r2 * vy[1] - r1 * vy[0];
- normal[0] = v;
- normal[1] = -u;
- GEAR_VERT(r2, 1, 1);
- GEAR_VERT(r2, 1, -1);
-
- normal[0] = vx[0];
- normal[1] = vy[0];
- GEAR_VERT(r2, 2, 1);
- GEAR_VERT(r2, 2, -1);
-
- u = r1 * vx[3] - r2 * vx[2];
- v = r1 * vy[3] - r2 * vy[2];
- normal[0] = v;
- normal[1] = -u;
- GEAR_VERT(r1, 3, 1);
- GEAR_VERT(r1, 3, -1);
-
- normal[0] = vx[0];
- normal[1] = vy[0];
- GEAR_VERT(r1, 4, 1);
- GEAR_VERT(r1, 4, -1);
-
- /* inside radius cylinder, 4 verts */
- normal[0] = -vx[4];
- normal[1] = -vy[4];
- GEAR_VERT(r0, 4, 1);
- GEAR_VERT(r0, 4, -1);
-
- normal[0] = -vx[0];
- normal[1] = -vy[0];
- GEAR_VERT(r0, 0, 1);
- GEAR_VERT(r0, 0, -1);
-
- assert(count % verts_per_tooth == 0);
- }
- assert(count == total_verts);
-#undef GEAR_VERT
-
- gear->vertices = verts;
-
- /* setup VBO */
- glGenBuffers(1, &gear->vbo);
- if (gear->vbo) {
- glBindBuffer(GL_ARRAY_BUFFER, gear->vbo);
- glBufferData(GL_ARRAY_BUFFER, total_size, verts, GL_STATIC_DRAW);
- }
-}
-
-
-static void
-draw_gear(const struct gear *gear)
-{
- GLint i;
-
- if (!gear->vbo && !gear->vertices) {
- printf("nothing to be drawn\n");
- return;
- }
-
- if (gear->vbo) {
- glBindBuffer(GL_ARRAY_BUFFER, gear->vbo);
- glVertexPointer(3, GL_FLOAT, gear->stride, (const GLvoid *) 0);
- glNormalPointer(GL_FLOAT, gear->stride, (const GLvoid *) (sizeof(GLfloat) * 3));
- } else {
- glBindBuffer(GL_ARRAY_BUFFER, 0);
- glVertexPointer(3, GL_FLOAT, gear->stride, gear->vertices);
- glNormalPointer(GL_FLOAT, gear->stride, gear->vertices + 3);
- }
-
- glEnableClientState(GL_VERTEX_ARRAY);
-
- for (i = 0; i < gear->num_teeth; i++) {
- const GLint base = (10 + 4) * i;
- GLushort indices[7];
-
- glShadeModel(GL_FLAT);
-
- /* front face */
- indices[0] = base + 12;
- indices[1] = base + 0;
- indices[2] = base + 2;
- indices[3] = base + 4;
- indices[4] = base + 6;
- indices[5] = base + 8;
- indices[6] = base + 10;
-
- glNormal3f(0.0, 0.0, 1.0);
- glDrawElements(GL_TRIANGLE_FAN, 7, GL_UNSIGNED_SHORT, indices);
-
- /* back face */
- indices[0] = base + 13;
- indices[1] = base + 11;
- indices[2] = base + 9;
- indices[3] = base + 7;
- indices[4] = base + 5;
- indices[5] = base + 3;
- indices[6] = base + 1;
-
- glNormal3f(0.0, 0.0, -1.0);
- glDrawElements(GL_TRIANGLE_FAN, 7, GL_UNSIGNED_SHORT, indices);
-
- glEnableClientState(GL_NORMAL_ARRAY);
-
- /* outward face of a tooth */
- glDrawArrays(GL_TRIANGLE_STRIP, base, 10);
-
- /* inside radius cylinder */
- glShadeModel(GL_SMOOTH);
- glDrawArrays(GL_TRIANGLE_STRIP, base + 10, 4);
-
- glDisableClientState(GL_NORMAL_ARRAY);
- }
-
- glDisableClientState(GL_VERTEX_ARRAY);
-}
-
-
-static void
-gears_draw(void *data)
-{
- static const GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
- static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
- static const GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1.0, 0.0, 0.0);
- glRotatef(view_roty, 0.0, 1.0, 0.0);
- glRotatef(view_rotz, 0.0, 0.0, 1.0);
-
- glPushMatrix();
- glTranslatef(-3.0, -2.0, 0.0);
- glRotatef(angle, 0.0, 0.0, 1.0);
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
- draw_gear(&gears[0]);
-
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef(3.1, -2.0, 0.0);
- glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, green);
- draw_gear(&gears[1]);
-
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef(-3.1, 4.2, 0.0);
- glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
- draw_gear(&gears[2]);
-
- glPopMatrix();
-
- glPopMatrix();
-
- /* advance rotation for next frame */
- angle += 0.5; /* 0.5 degree per frame */
- if (angle > 3600.0)
- angle -= 3600.0;
-}
-
-
-static void gears_fini(void)
-{
- GLint i;
- for (i = 0; i < 3; i++) {
- struct gear *gear = &gears[i];
- if (gear->vbo) {
- glDeleteBuffers(1, &gear->vbo);
- gear->vbo = 0;
- }
- if (gear->vertices) {
- free(gear->vertices);
- gear->vertices = NULL;
- }
- }
-}
-
-
-static void gears_init(void)
-{
- static const GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
-
- glLightfv(GL_LIGHT0, GL_POSITION, pos);
- glEnable(GL_CULL_FACE);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_NORMALIZE);
-
- init_gear(&gears[0], 1.0, 4.0, 1.0, 20, 0.7);
- init_gear(&gears[1], 0.5, 2.0, 2.0, 10, 0.7);
- init_gear(&gears[2], 1.3, 2.0, 0.5, 10, 0.7);
-}
-
-
-/* new window size or exposure */
-static void
-gears_reshape(int width, int height)
-{
- GLfloat h = (GLfloat) height / (GLfloat) width;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustumf(-1.0, 1.0, -h, h, 5.0, 60.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -40.0);
-}
-
-
-static void gears_run(void)
-{
- winsysRun(5.0, gears_draw, NULL);
-}
-
-
-int
-main(int argc, char *argv[])
-{
- EGLint width, height;
-
- if (!winsysInitScreen())
- exit(1);
- winsysQueryScreenSize(&width, &height);
-
- gears_init();
- gears_reshape(width, height);
- gears_run();
- gears_fini();
-
- winsysFiniScreen();
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
- *
- * Based on egltri by
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
- * Copyright (C) 2008 Brian Paul All Rights Reserved.
- * Copyright (C) 2008 Jakob Bornecrantz All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <GLES/gl.h>
-#include "winsys.h"
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-
-static void tri_init()
-{
- glClearColor(0.4, 0.4, 0.4, 0.0);
-}
-
-static void tri_reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -10.0);
-}
-
-static void tri_draw(void *data)
-{
- static const GLfloat verts[3][2] = {
- { -1, -1 },
- { 1, -1 },
- { 0, 1 }
- };
- static const GLfloat colors[3][4] = {
- { 1, 0, 0, 1 },
- { 0, 1, 0, 1 },
- { 0, 0, 1, 1 }
- };
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
-
- {
- glVertexPointer(2, GL_FLOAT, 0, verts);
- glColorPointer(4, GL_FLOAT, 0, colors);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_COLOR_ARRAY);
-
- glDrawArrays(GL_TRIANGLES, 0, 3);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
- }
-
- glPopMatrix();
-}
-
-static void tri_run(void)
-{
- winsysRun(3.0, tri_draw, NULL);
-}
-
-int main(int argc, char *argv[])
-{
- EGLint width, height;
- GLboolean printInfo = GL_FALSE;
- int i;
-
- /* parse cmd line args */
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- printf("Warning: unknown parameter: %s\n", argv[i]);
- }
- }
-
- if (!winsysInitScreen())
- exit(1);
- winsysQueryScreenSize(&width, &height);
-
- if (printInfo) {
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
- }
-
- tri_init();
- tri_reshape(width, height);
- tri_run();
-
- winsysFiniScreen();
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
- *
- * Based on eglgears by
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <sys/time.h>
-
-#define EGL_EGLEXT_PROTOTYPES
-
-#include <EGL/egl.h>
-#include <EGL/eglext.h>
-
-#include "winsys.h"
-
-#define MAX_MODES 100
-
-static struct {
- EGLBoolean verbose;
-
- EGLDisplay dpy;
- EGLConfig conf;
-
- EGLScreenMESA screen;
- EGLModeMESA mode;
- EGLint width, height;
-
- EGLContext ctx;
- EGLSurface surf;
-} screen;
-
-
-static EGLBoolean
-init_screen(void)
-{
- EGLModeMESA modes[MAX_MODES];
- EGLint num_screens, num_modes;
- EGLint width, height, best_mode;
- EGLint i;
-
- if (!eglGetScreensMESA(screen.dpy, &screen.screen, 1, &num_screens) ||
- !num_screens) {
- printf("eglGetScreensMESA failed\n");
- return EGL_FALSE;
- }
-
- if (!eglGetModesMESA(screen.dpy, screen.screen, modes, MAX_MODES,
- &num_modes) ||
- !num_modes) {
- printf("eglGetModesMESA failed!\n");
- return EGL_FALSE;
- }
-
- printf("Found %d modes:\n", num_modes);
-
- best_mode = 0;
- width = 0;
- height = 0;
- for (i = 0; i < num_modes; i++) {
- EGLint w, h;
- eglGetModeAttribMESA(screen.dpy, modes[i], EGL_WIDTH, &w);
- eglGetModeAttribMESA(screen.dpy, modes[i], EGL_HEIGHT, &h);
- printf("%3d: %d x %d\n", i, w, h);
- if (w > width && h > height) {
- width = w;
- height = h;
- best_mode = i;
- }
- }
-
- screen.mode = modes[best_mode];
- screen.width = width;
- screen.height = height;
-
- return EGL_TRUE;
-}
-
-
-static EGLBoolean
-init_display(void)
-{
- EGLint maj, min;
- const char *exts;
- const EGLint attribs[] = {
- EGL_SURFACE_TYPE, 0x0, /* should be EGL_SCREEN_BIT_MESA */
- EGL_RENDERABLE_TYPE, 0x0, /* should be EGL_OPENGL_ES_BIT */
- EGL_NONE
- };
- EGLint num_configs;
-
- screen.dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
- if (!screen.dpy) {
- printf("eglGetDisplay failed\n");
- return EGL_FALSE;
- }
-
- if (!eglInitialize(screen.dpy, &maj, &min)) {
- printf("eglInitialize failed\n");
- return EGL_FALSE;
- }
-
- printf("EGL_VERSION = %s\n", eglQueryString(screen.dpy, EGL_VERSION));
- printf("EGL_VENDOR = %s\n", eglQueryString(screen.dpy, EGL_VENDOR));
-
- exts = eglQueryString(screen.dpy, EGL_EXTENSIONS);
- assert(exts);
-
- if (!strstr(exts, "EGL_MESA_screen_surface")) {
- printf("EGL_MESA_screen_surface is not supported\n");
- return EGL_FALSE;
- }
-
- if (!eglChooseConfig(screen.dpy, attribs, &screen.conf, 1,
- &num_configs) ||
- !num_configs) {
- printf("eglChooseConfig failed\n");
- return EGL_FALSE;
- }
-
- return EGL_TRUE;
-}
-
-
-EGLBoolean
-winsysInitScreen(void)
-{
- EGLint surf_attribs[20];
- EGLint i;
- EGLBoolean ok;
-
- if (!init_display())
- goto fail;
- if (!init_screen())
- goto fail;
-
- /* create context */
- screen.ctx = eglCreateContext(screen.dpy, screen.conf,
- EGL_NO_CONTEXT, NULL);
- if (screen.ctx == EGL_NO_CONTEXT) {
- printf("eglCreateContext failed\n");
- goto fail;
- }
-
- i = 0;
- surf_attribs[i++] = EGL_WIDTH;
- surf_attribs[i++] = screen.width;
- surf_attribs[i++] = EGL_HEIGHT;
- surf_attribs[i++] = screen.height;
- surf_attribs[i++] = EGL_NONE;
-
- /* create surface */
- printf("Using screen size: %d x %d\n", screen.width, screen.height);
- screen.surf = eglCreateScreenSurfaceMESA(screen.dpy, screen.conf,
- surf_attribs);
- if (screen.surf == EGL_NO_SURFACE) {
- printf("eglCreateScreenSurfaceMESA failed\n");
- goto fail;
- }
-
- ok = eglMakeCurrent(screen.dpy, screen.surf, screen.surf, screen.ctx);
- if (!ok) {
- printf("eglMakeCurrent failed\n");
- goto fail;
- }
-
- ok = eglShowScreenSurfaceMESA(screen.dpy, screen.screen,
- screen.surf, screen.mode);
- if (!ok) {
- printf("eglShowScreenSurfaceMESA failed\n");
- goto fail;
- }
-
- return EGL_TRUE;
-
-fail:
- winsysFiniScreen();
- return EGL_FALSE;
-}
-
-
-EGLBoolean
-winsysQueryScreenSize(EGLint *width, EGLint *height)
-{
- if (!screen.dpy)
- return EGL_FALSE;
-
- if (width)
- *width = screen.width;
- if (height)
- *height = screen.height;
-
- return EGL_TRUE;
-}
-
-
-void
-winsysFiniScreen(void)
-{
- if (screen.dpy) {
- eglMakeCurrent(screen.dpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
- EGL_NO_CONTEXT);
- if (screen.surf != EGL_NO_SURFACE)
- eglDestroySurface(screen.dpy, screen.surf);
- if (screen.ctx != EGL_NO_CONTEXT)
- eglDestroyContext(screen.dpy, screen.ctx);
- eglTerminate(screen.dpy);
-
- memset(&screen, 0, sizeof(screen));
- }
-}
-
-
-void
-winsysSwapBuffers(void)
-{
- eglSwapBuffers(screen.dpy, screen.surf);
-}
-
-
-/* return current time (in seconds) */
-double
-winsysNow(void)
-{
- struct timeval tv;
- gettimeofday(&tv, NULL);
- return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
-}
-
-
-void
-winsysRun(double seconds, void (*draw_frame)(void *data), void *data)
-{
- double begin, end, last_frame, duration;
- EGLint num_frames = 0;
-
- begin = winsysNow();
- end = begin + seconds;
-
- last_frame = begin;
- while (last_frame < end) {
- draw_frame(data);
- winsysSwapBuffers();
- last_frame = winsysNow();
- num_frames++;
- }
-
- duration = last_frame - begin;
- printf("%d frames in %3.1f seconds = %6.3f FPS\n",
- num_frames, duration, (double) num_frames / duration);
-}
+++ /dev/null
-/*
- * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef _WINSYS_H_
-#define _WINSYS_H_
-
-#include <EGL/egl.h>
-
-EGLBoolean winsysInitScreen(void);
-EGLBoolean winsysQueryScreenSize(EGLint *width, EGLint *height);
-void winsysFiniScreen(void);
-
-void winsysSwapBuffers(void);
-double winsysNow(void);
-
-void winsysRun(double seconds, void (*draw_frame)(void *data), void *data);
-
-#endif /* _WINSYS_H_ */
+++ /dev/null
-# progs/es1/xegl/Makefile
-
-TOP = ../../..
-include $(TOP)/configs/current
-
-
-INCLUDE_DIRS = \
- -I$(TOP)/include \
-
-HEADERS = $(TOP)/include/GLES/egl.h
-
-
-ES1_LIB_DEPS = \
- $(TOP)/$(LIB_DIR)/libEGL.so \
- $(TOP)/$(LIB_DIR)/libGLESv1_CM.so
-
-
-ES1_LIBS = \
- -L$(TOP)/$(LIB_DIR) -lEGL \
- -L$(TOP)/$(LIB_DIR) -lGLESv1_CM $(LIBDRM_LIB) -lX11
-
-PROGRAMS = \
- bindtex \
- drawtex \
- es1_info \
- msaa \
- pbuffer \
- render_tex \
- torus \
- tri \
- two_win
-
-
-.c.o:
- $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
-
-
-
-default: $(PROGRAMS)
-
-
-
-bindtex: bindtex.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) bindtex.o $(ES1_LIBS) -o $@
-
-
-drawtex: drawtex.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) drawtex.o $(ES1_LIBS) -o $@
-
-
-es1_info: es1_info.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) es1_info.o $(ES1_LIBS) -o $@
-
-
-msaa: msaa.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) msaa.o $(ES1_LIBS) -o $@
-
-
-pbuffer: pbuffer.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) pbuffer.o $(ES1_LIBS) -o $@
-
-
-render_tex: render_tex.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) render_tex.o $(ES1_LIBS) -o $@
-
-
-torus: torus.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) torus.o $(ES1_LIBS) -o $@
-
-
-two_win: two_win.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) two_win.o $(ES1_LIBS) -o $@
-
-
-tri: tri.o $(ES1_LIB_DEPS)
- $(CC) $(CFLAGS) tri.o $(ES1_LIBS) -o $@
-
-
-clean:
- rm -f *.o *~
- rm -f $(PROGRAMS)
-
+++ /dev/null
-/*
- * Simple demo for eglBindTexImage. Based on xegl_tri.c by
- *
- * Copyright (C) 2008 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * The spec says that eglBindTexImage supports only OpenGL ES context, but this
- * demo uses OpenGL context. Keep in mind that this is non-standard.
- */
-
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GLES/gl.h>
-#include <EGL/egl.h>
-
-static EGLDisplay dpy;
-static EGLContext ctx_win, ctx_pbuf;
-static EGLSurface surf_win, surf_pbuf;
-static GLuint tex_pbuf;
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-static GLboolean blend = GL_TRUE;
-static GLuint color_flow;
-
-static void
-make_pbuffer(int width, int height)
-{
- static const EGLint config_attribs[] = {
- EGL_RED_SIZE, 8,
- EGL_GREEN_SIZE, 8,
- EGL_BLUE_SIZE, 8,
- EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE,
- EGL_NONE
- };
- EGLint pbuf_attribs[] = {
- EGL_WIDTH, width,
- EGL_HEIGHT, height,
- EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
- EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
- EGL_NONE
- };
- EGLConfig config;
- EGLint num_configs;
-
- if (!eglChooseConfig(dpy, config_attribs, &config, 1, &num_configs) ||
- !num_configs) {
- printf("Error: couldn't get an EGL visual config for pbuffer\n");
- exit(1);
- }
-
- ctx_pbuf = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL );
- surf_pbuf = eglCreatePbufferSurface(dpy, config, pbuf_attribs);
- if (surf_pbuf == EGL_NO_SURFACE) {
- printf("failed to allocate pbuffer\n");
- exit(1);
- }
-}
-
-static void
-use_pbuffer(void)
-{
- static int initialized;
-
- eglMakeCurrent(dpy, surf_pbuf, surf_pbuf, ctx_pbuf);
- if (!initialized) {
- EGLint width, height;
- GLfloat ar;
-
- initialized = 1;
-
- eglQuerySurface(dpy, surf_pbuf, EGL_WIDTH, &width);
- eglQuerySurface(dpy, surf_pbuf, EGL_WIDTH, &height);
- ar = (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustumf(-ar, ar, -1, 1, 1.0, 10.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- /* y-inverted */
- glScalef(1.0, -1.0, 1.0);
-
- glTranslatef(0.0, 0.0, -5.0);
-
- glClearColor(0.2, 0.2, 0.2, 0.0);
-
- glGenTextures(1, &tex_pbuf);
- }
-}
-
-static void
-make_window(Display *x_dpy, const char *name,
- int x, int y, int width, int height,
- Window *winRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 8,
- EGL_GREEN_SIZE, 8,
- EGL_BLUE_SIZE, 8,
- EGL_ALPHA_SIZE, 8,
- EGL_DEPTH_SIZE, 8,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLConfig config;
- EGLint num_configs, vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig(dpy, attribs, &config, 1, &num_configs) ||
- !num_configs) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- if (!eglGetConfigAttrib(dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- attr.override_redirect = 0;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- ctx_win = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx_win) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- surf_win = eglCreateWindowSurface(dpy, config, win, NULL);
-
- XFree(visInfo);
-
- *winRet = win;
-}
-
-static void
-use_window(void)
-{
- static int initialized;
-
- eglMakeCurrent(dpy, surf_win, surf_win, ctx_win);
- if (!initialized) {
- initialized = 1;
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, tex_pbuf);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- }
-}
-
-static void
-draw_triangle(void)
-{
- static const GLfloat verts[3][2] = {
- { -3, -3 },
- { 3, -3 },
- { 0, 3 }
- };
- GLfloat colors[3][4] = {
- { 1, 0, 0, 1 },
- { 0, 1, 0, 1 },
- { 0, 0, 1, 1 }
- };
- GLint i;
-
- /* flow the color */
- for (i = 0; i < 3; i++) {
- GLint first = (i + color_flow / 256) % 3;
- GLint second = (first + 1) % 3;
- GLint third = (second + 1) % 3;
- GLfloat c = (color_flow % 256) / 256.0f;
-
- c = c * c * c;
- colors[i][first] = 1.0f - c;
- colors[i][second] = c;
- colors[i][third] = 0.0f;
- }
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glVertexPointer(2, GL_FLOAT, 0, verts);
- glColorPointer(4, GL_FLOAT, 0, colors);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_COLOR_ARRAY);
-
- glDrawArrays(GL_TRIANGLES, 0, 3);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
-}
-
-static void
-draw_textured_cube(void)
-{
- static const GLfloat verts[][2] = {
- { -4, -4 },
- { 4, -4 },
- { 4, 4 },
- { -4, 4 }
- };
- static const GLfloat colors[][4] = {
- { 1, 1, 1, 0.5 },
- { 1, 1, 1, 0.5 },
- { 1, 1, 1, 0.5 },
- { 1, 1, 1, 0.5 }
- };
- static const GLfloat texs[][2] = {
- { 0, 0 },
- { 1, 0 },
- { 1, 1 },
- { 0, 1 }
- };
- static const GLfloat xforms[6][4] = {
- { 0, 0, 1, 0 },
- { 90, 0, 1, 0 },
- { 180, 0, 1, 0 },
- { 270, 0, 1, 0 },
- { 90, 1, 0, 0 },
- { -90, 1, 0, 0 }
- };
- GLint i;
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- if (blend) {
- glDisable(GL_DEPTH_TEST);
- glEnable(GL_BLEND);
- } else {
- glEnable(GL_DEPTH_TEST);
- glDisable(GL_BLEND);
- }
-
- glVertexPointer(2, GL_FLOAT, 0, verts);
- glColorPointer(4, GL_FLOAT, 0, colors);
- glTexCoordPointer(2, GL_FLOAT, 0, texs);
-
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_COLOR_ARRAY);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-
- for (i = 0; i < 6; i++) {
- glPushMatrix();
- glRotatef(xforms[i][0], xforms[i][1], xforms[i][2], xforms[i][3]);
- glTranslatef(0, 0, 4.1);
- glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
- glPopMatrix();
- }
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-}
-
-static void
-draw(void)
-{
- use_pbuffer();
- draw_triangle();
-
- use_window();
-
- eglBindTexImage(dpy, surf_pbuf, EGL_BACK_BUFFER);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
-
- draw_textured_cube();
-
- glPopMatrix();
-
- eglReleaseTexImage(dpy, surf_pbuf, EGL_BACK_BUFFER);
-}
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- use_window();
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -40.0);
-}
-
-static void
-event_loop(Display *x_dpy, Window win)
-{
- while (1) {
- int redraw = 1;
-
- if (XPending(x_dpy) > 0) {
- XEvent event;
- XNextEvent(x_dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else if (code == XK_b) {
- blend = !blend;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
- }
-
- if (redraw) {
- view_rotx += 1.0;
- view_roty += 2.0;
- view_rotz += 1.5;
- color_flow += 20;
- draw();
- eglSwapBuffers(dpy, surf_win);
- }
- }
-}
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 300, winHeight = 300;
- Display *x_dpy;
- Window win;
- char *dpyName = NULL;
- EGLint egl_major, egl_minor;
- const char *s;
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- dpy = eglGetDisplay(x_dpy);
- if (!dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- make_window(x_dpy, "color flow", 0, 0, winWidth, winHeight, &win);
- make_pbuffer(winWidth, winHeight);
-
- XMapWindow(x_dpy, win);
-
- reshape(winWidth, winHeight);
- event_loop(x_dpy, win);
-
- glDeleteTextures(1, &tex_pbuf);
-
- eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
- eglTerminate(dpy);
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
- */
-
-/*
- * Test GL_OES_draw_texture
- * Brian Paul
- * August 2008
- */
-
-#define GL_GLEXT_PROTOTYPES
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-#include <EGL/egl.h>
-
-
-
-static GLfloat view_posx = 10.0, view_posy = 20.0;
-static GLfloat width = 200, height = 200;
-
-
-static void
-draw(void)
-{
- glClear(GL_COLOR_BUFFER_BIT);
-
- glDrawTexfOES(view_posx, view_posy, 0.0, width, height);
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
-#ifdef GL_VERSION_ES_CM_1_0
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-#else
- glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
-#endif
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
-}
-
-
-static float
-dist(GLuint i, GLuint j, float x, float y)
-{
- return sqrt((i-x) * (i-x) + (j-y) * (j-y));
-}
-
-static void
-make_smile_texture(void)
-{
-#define SZ 128
- GLenum Filter = GL_LINEAR;
- GLubyte image[SZ][SZ][4];
- GLuint i, j;
- GLint cropRect[4];
-
- for (i = 0; i < SZ; i++) {
- for (j = 0; j < SZ; j++) {
- GLfloat d_mouth = dist(i, j, SZ/2, SZ/2);
- GLfloat d_rt_eye = dist(i, j, SZ*3/4, SZ*3/4);
- GLfloat d_lt_eye = dist(i, j, SZ*3/4, SZ*1/4);
- if (d_rt_eye < SZ / 8 || d_lt_eye < SZ / 8) {
- image[i][j][0] = 20;
- image[i][j][1] = 50;
- image[i][j][2] = 255;
- image[i][j][3] = 255;
- }
- else if (i < SZ/2 && d_mouth < SZ/3) {
- image[i][j][0] = 255;
- image[i][j][1] = 20;
- image[i][j][2] = 20;
- image[i][j][3] = 255;
- }
- else {
- image[i][j][0] = 200;
- image[i][j][1] = 200;
- image[i][j][2] = 200;
- image[i][j][3] = 255;
- }
- }
- }
-
- glActiveTexture(GL_TEXTURE0); /* unit 0 */
- glBindTexture(GL_TEXTURE_2D, 42);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, image);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- cropRect[0] = 0;
- cropRect[1] = 0;
- cropRect[2] = SZ;
- cropRect[3] = SZ;
- glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect);
-#undef SZ
-}
-
-
-
-static void
-init(void)
-{
- const char *ext = (char *) glGetString(GL_EXTENSIONS);
-
- if (!strstr(ext, "GL_OES_draw_texture")) {
- fprintf(stderr, "Sorry, this program requires GL_OES_draw_texture");
- exit(1);
- }
-
- glClearColor(0.4, 0.4, 0.4, 0.0);
-
- make_smile_texture();
- glEnable(GL_TEXTURE_2D);
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- eglBindAPI(EGL_OPENGL_ES_API);
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
- int anim = 0;
-
- while (1) {
- int redraw = 0;
-
- if (!anim || XPending(dpy)) {
- XEvent event;
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_posx -= 1.0;
- }
- else if (code == XK_Right) {
- view_posx += 1.0;
- }
- else if (code == XK_Up) {
- view_posy += 1.0;
- }
- else if (code == XK_Down) {
- view_posy -= 1.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == ' ') {
- anim = !anim;
- }
- else if (buffer[0] == 'w') {
- width -= 1.0f;
- }
- else if (buffer[0] == 'W') {
- width += 1.0f;
- }
- else if (buffer[0] == 'h') {
- height -= 1.0f;
- }
- else if (buffer[0] == 'H') {
- height += 1.0f;
- }
- else if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
- }
-
- if (anim) {
- view_posx += 1.0;
- view_posy += 2.0;
- redraw = 1;
- }
-
- if (redraw) {
- draw();
- eglSwapBuffers(egl_dpy, egl_surf);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 400, winHeight = 300;
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "drawtex", 0, 0, winWidth, winHeight,
- &win, &egl_ctx, &egl_surf);
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
- }
-
- init();
-
- /* Set initial projection/viewing transformation.
- * We can't be sure we'll get a ConfigureNotify event when the window
- * first appears.
- */
- reshape(winWidth, winHeight);
-
- event_loop(x_dpy, win, egl_dpy, egl_surf);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
- */
-
-/*
- * List OpenGL ES extensions.
- * Print ES 1 or ES 2 extensions depending on which library we're
- * linked with: libGLESv1_CM.so vs libGLESv2.so
- */
-
-#define GL_GLEXT_PROTOTYPES
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-#include <EGL/egl.h>
-
-
-/*
- * Print a list of extensions, with word-wrapping.
- */
-static void
-print_extension_list(const char *ext)
-{
- const char *indentString = " ";
- const int indent = 4;
- const int max = 79;
- int width, i, j;
-
- if (!ext || !ext[0])
- return;
-
- width = indent;
- printf(indentString);
- i = j = 0;
- while (1) {
- if (ext[j] == ' ' || ext[j] == 0) {
- /* found end of an extension name */
- const int len = j - i;
- if (width + len > max) {
- /* start a new line */
- printf("\n");
- width = indent;
- printf(indentString);
- }
- /* print the extension name between ext[i] and ext[j] */
- while (i < j) {
- printf("%c", ext[i]);
- i++;
- }
- /* either we're all done, or we'll continue with next extension */
- width += len + 1;
- if (ext[j] == 0) {
- break;
- }
- else {
- i++;
- j++;
- if (ext[j] == 0)
- break;
- printf(", ");
- width += 2;
- }
- }
- j++;
- }
- printf("\n");
-}
-
-
-static void
-info(EGLDisplay egl_dpy)
-{
- const char *s;
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_EXTENSIONS:\n");
- print_extension_list((char *) glGetString(GL_EXTENSIONS));
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height, int es_ver,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- EGLint attribs[] = {
- EGL_RENDERABLE_TYPE, 0x0,
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_NONE
- };
- EGLint ctx_attribs[] = {
- EGL_CONTEXT_CLIENT_VERSION, 0,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (es_ver == 1)
- attribs[1] = EGL_OPENGL_ES_BIT;
- else
- attribs[1] = EGL_OPENGL_ES2_BIT;
- ctx_attribs[1] = es_ver;
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- eglBindAPI(EGL_OPENGL_ES_API);
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 400, winHeight = 300;
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- EGLint egl_major, egl_minor, es_ver;
- int i;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- es_ver = 1;
- /* decide the version from the executable's name */
- if (argc > 0 && argv[0] && strstr(argv[0], "es2"))
- es_ver = 2;
- make_x_window(x_dpy, egl_dpy,
- "ES info", 0, 0, winWidth, winHeight, es_ver,
- &win, &egl_ctx, &egl_surf);
-
- /*XMapWindow(x_dpy, win);*/
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- info(egl_dpy);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * Test MSAA with X/EGL and OpenGL ES 1.x
- * Brian Paul
- * 15 September 2008
- */
-
-#define USE_FULL_GL 0
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#if USE_FULL_GL
-#include <GL/gl.h> /* use full OpenGL */
-#else
-#include <GLES/gl.h> /* use OpenGL ES 1.x */
-#include <GLES/glext.h>
-#endif
-#include <EGL/egl.h>
-
-
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-static GLboolean AA = 0*GL_TRUE;
-
-
-static void
-draw(void)
-{
- float a;
-
- static const GLfloat verts[4][2] = {
- { -1, -.1 },
- { 1, -.1 },
- { -1, .1 },
- { 1, .1 }
- };
- static const GLfloat colors[4][4] = {
- { 1, 0, 0, 1 },
- { 0, 1, 0, 1 },
- { 0, 0, 1, 1 },
- { 1, 0, 1, 1 }
- };
-
- if (AA) {
- printf("MSAA enabled\n");
- glEnable(GL_MULTISAMPLE);
- }
- else {
- printf("MSAA disabled\n");
- glDisable(GL_MULTISAMPLE);
- }
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
-
- {
- glVertexPointer(2, GL_FLOAT, 0, verts);
- glColorPointer(4, GL_FLOAT, 0, colors);
-
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_COLOR_ARRAY);
-
- for (a = 0; a < 360; a += 20.0) {
- glPushMatrix();
-
- glRotatef(a, 0, 0, 1);
- glTranslatef(1.5, 0, 0);
-
- /* draw triangle */
- glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-
- glPopMatrix();
- }
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
- }
-
- glPopMatrix();
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ary = 3.0;
- GLfloat arx = ary * (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-#ifdef GL_VERSION_ES_CM_1_0
- glOrthof(-arx, arx, -ary, ary, -1.0, 1.0);
-#else
- glOrtho(-arx, arx, -ary, ary, -1.0, 1.0);
-#endif
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-}
-
-
-
-static void
-init(void)
-{
- printf("Press 'a' to toggle multisample antialiasing\n");
- printf("Press 'Esc' to exit\n");
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_SAMPLES, 1,
- EGL_SAMPLE_BUFFERS, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- if (num_configs < 1) {
- printf("Error: Unable to find multisample pixel format.\n");
- printf("Try running glxinfo to see if your server supports MSAA.\n");
- exit(1);
- }
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
-#if USE_FULL_GL
- eglBindAPI(EGL_OPENGL_API);
-#else
- eglBindAPI(EGL_OPENGL_ES_API);
-#endif
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
- while (1) {
- int redraw = 0;
- XEvent event;
-
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == 'a') {
- AA = !AA;
- redraw = 1;
- }
- else if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
-
- if (redraw) {
- draw();
- eglSwapBuffers(egl_dpy, egl_surf);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 600, winHeight = 600;
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- static struct {
- char *name;
- GLenum value;
- enum {GetString, GetInteger} type;
- } info_items[] = {
- {"GL_RENDERER", GL_RENDERER, GetString},
- {"GL_VERSION", GL_VERSION, GetString},
- {"GL_VENDOR", GL_VENDOR, GetString},
- {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
- {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
- {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
- };
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "msaa", 0, 0, winWidth, winHeight,
- &win, &egl_ctx, &egl_surf);
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
- switch (info_items[i].type) {
- case GetString:
- printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
- break;
- case GetInteger: {
- GLint rv = -1;
- glGetIntegerv(info_items[i].value, &rv);
- printf("%s = %d\n", info_items[i].name, rv);
- break;
- }
- }
- }
- };
- init();
-
- /* Set initial projection/viewing transformation.
- * We can't be sure we'll get a ConfigureNotify event when the window
- * first appears.
- */
- reshape(winWidth, winHeight);
-
- event_loop(x_dpy, win, egl_dpy, egl_surf);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
- */
-
-/*
- * Test EGL Pbuffers
- * Brian Paul
- * August 2008
- */
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-#include <EGL/egl.h>
-
-
-
-static int WinWidth = 300, WinHeight = 300;
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-
-
-static void
-Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
-{
- n[0] = nx;
- n[1] = ny;
- n[2] = nz;
-}
-
-static void
-Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
-{
- v[0] = vx;
- v[1] = vy;
- v[2] = vz;
-}
-
-static void
-Texcoord(GLfloat *v, GLfloat s, GLfloat t)
-{
- v[0] = s;
- v[1] = t;
-}
-
-
-/* Borrowed from glut, adapted */
-static void
-draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
-{
- int i, j;
- GLfloat theta, phi, theta1;
- GLfloat cosTheta, sinTheta;
- GLfloat cosTheta1, sinTheta1;
- GLfloat ringDelta, sideDelta;
- GLfloat varray[100][3], narray[100][3], tarray[100][2];
- int vcount;
-
- glVertexPointer(3, GL_FLOAT, 0, varray);
- glNormalPointer(GL_FLOAT, 0, narray);
- glTexCoordPointer(2, GL_FLOAT, 0, tarray);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_NORMAL_ARRAY);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-
- ringDelta = 2.0 * M_PI / rings;
- sideDelta = 2.0 * M_PI / nsides;
-
- theta = 0.0;
- cosTheta = 1.0;
- sinTheta = 0.0;
- for (i = rings - 1; i >= 0; i--) {
- theta1 = theta + ringDelta;
- cosTheta1 = cos(theta1);
- sinTheta1 = sin(theta1);
-
- vcount = 0; /* glBegin(GL_QUAD_STRIP); */
-
- phi = 0.0;
- for (j = nsides; j >= 0; j--) {
- GLfloat s0, s1, t;
- GLfloat cosPhi, sinPhi, dist;
-
- phi += sideDelta;
- cosPhi = cos(phi);
- sinPhi = sin(phi);
- dist = R + r * cosPhi;
-
- s0 = 20.0 * theta / (2.0 * M_PI);
- s1 = 20.0 * theta1 / (2.0 * M_PI);
- t = 8.0 * phi / (2.0 * M_PI);
-
- Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
- Texcoord(tarray[vcount], s1, t);
- Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
- vcount++;
-
- Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
- Texcoord(tarray[vcount], s0, t);
- Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi);
- vcount++;
- }
-
- /*glEnd();*/
- assert(vcount <= 100);
- glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
-
- theta = theta1;
- cosTheta = cosTheta1;
- sinTheta = sinTheta1;
- }
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_NORMAL_ARRAY);
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-}
-
-
-static void
-draw(void)
-{
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
- glScalef(0.5, 0.5, 0.5);
-
- draw_torus(1.0, 3.0, 30, 60);
-
- glPopMatrix();
-
- glFinish();
-}
-
-
-/**
- * Draw to both the window and pbuffer and compare results.
- */
-static void
-draw_both(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
- EGLContext egl_ctx)
-{
- unsigned *wbuf, *pbuf;
- int x = 100, y = 110;
- int i, dif;
-
- wbuf = (unsigned *) malloc(WinWidth * WinHeight * 4);
- pbuf = (unsigned *) malloc(WinWidth * WinHeight * 4);
-
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
-
- /* first draw to window */
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent(window) failed\n");
- return;
- }
- draw();
- glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, wbuf);
- printf("Window[%d,%d] = 0x%08x\n", x, y, wbuf[y*WinWidth+x]);
-
- /* then draw to pbuffer */
- if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) {
- printf("Error: eglMakeCurrent(pbuffer) failed\n");
- return;
- }
- draw();
- glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, pbuf);
- printf("Pbuffer[%d,%d] = 0x%08x\n", x, y, pbuf[y*WinWidth+x]);
-
- eglSwapBuffers(egl_dpy, egl_surf);
-
- /* compare renderings */
- for (dif = i = 0; i < WinWidth * WinHeight; i++) {
- if (wbuf[i] != pbuf[i]) {
- dif = 1;
- break;
- }
- }
-
- if (dif)
- printf("Difference at %d: 0x%08x vs. 0x%08x\n", i, wbuf[i], pbuf[i]);
- else
- printf("Window rendering matches Pbuffer rendering!\n");
-
- free(wbuf);
- free(pbuf);
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- WinWidth = width;
- WinHeight = height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
-#ifdef GL_VERSION_ES_CM_1_0
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-#else
- glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
-#endif
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
-}
-
-
-static void
-make_texture(void)
-{
-#define SZ 64
- GLenum Filter = GL_LINEAR;
- GLubyte image[SZ][SZ][4];
- GLuint i, j;
-
- for (i = 0; i < SZ; i++) {
- for (j = 0; j < SZ; j++) {
- GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
- d = sqrt(d);
- if (d < SZ/3) {
- image[i][j][0] = 255;
- image[i][j][1] = 255;
- image[i][j][2] = 255;
- image[i][j][3] = 255;
- }
- else {
- image[i][j][0] = 127;
- image[i][j][1] = 127;
- image[i][j][2] = 127;
- image[i][j][3] = 255;
- }
- }
- }
-
- glActiveTexture(GL_TEXTURE0); /* unit 0 */
- glBindTexture(GL_TEXTURE_2D, 42);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, image);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-#undef SZ
-}
-
-
-
-static void
-init(void)
-{
- static const GLfloat red[4] = {1, 0, 0, 0};
- static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
- static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
- static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
- static const GLfloat pos[4] = {20, 20, 50, 1};
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
- glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
-
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glLightfv(GL_LIGHT0, GL_POSITION, pos);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
- glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
-
- glClearColor(0.4, 0.4, 0.4, 0.0);
- glEnable(GL_DEPTH_TEST);
-
- make_texture();
- glEnable(GL_TEXTURE_2D);
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- eglBindAPI(EGL_OPENGL_ES_API);
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static EGLSurface
-make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height)
-{
- static const EGLint config_attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
- EGLConfig config;
- EGLSurface pbuf;
- EGLint num_configs;
- EGLint pbuf_attribs[5];
-
- pbuf_attribs[0] = EGL_WIDTH;
- pbuf_attribs[1] = width;
- pbuf_attribs[2] = EGL_HEIGHT;
- pbuf_attribs[3] = height;
- pbuf_attribs[4] = EGL_NONE;
-
- if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL config for pbuffer\n");
- exit(1);
- }
-
- pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs);
-
- return pbuf;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
- EGLContext egl_ctx)
-{
- int anim = 0;
-
- while (1) {
- int redraw = 0;
-
- if (!anim || XPending(dpy)) {
- XEvent event;
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- if (event.xconfigure.window == win)
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == ' ') {
- anim = !anim;
- }
- else if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
- }
-
- if (anim) {
- view_rotx += 1.0;
- view_roty += 2.0;
- redraw = 1;
- }
-
- if (redraw) {
- draw_both(egl_dpy, egl_surf, egl_pbuf, egl_ctx);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf, egl_pbuf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "pbuffer", 0, 0, WinWidth, WinHeight,
- &win, &egl_ctx, &egl_surf);
-
- egl_pbuf = make_pbuffer(x_dpy, egl_dpy, WinWidth, WinHeight);
- if (!egl_pbuf) {
- printf("Error: eglCreatePBufferSurface() failed\n");
- return -1;
- }
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
- }
-
- init();
-
- /* Set initial projection/viewing transformation.
- * We can't be sure we'll get a ConfigureNotify event when the window
- * first appears.
- */
- reshape(WinWidth, WinHeight);
-
- event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
- */
-
-/*
- * Test EGL render to texture.
- * Brian Paul
- * August 2008
- */
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-#include <EGL/egl.h>
-
-
-static int TexWidth = 256, TexHeight = 256;
-
-static int WinWidth = 300, WinHeight = 300;
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-
-static GLuint DotTexture, RenderTexture;
-
-
-static void
-Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
-{
- n[0] = nx;
- n[1] = ny;
- n[2] = nz;
-}
-
-static void
-Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
-{
- v[0] = vx;
- v[1] = vy;
- v[2] = vz;
-}
-
-static void
-Texcoord(GLfloat *v, GLfloat s, GLfloat t)
-{
- v[0] = s;
- v[1] = t;
-}
-
-
-/* Borrowed from glut, adapted */
-static void
-draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
-{
- int i, j;
- GLfloat theta, phi, theta1;
- GLfloat cosTheta, sinTheta;
- GLfloat cosTheta1, sinTheta1;
- GLfloat ringDelta, sideDelta;
- GLfloat varray[100][3], narray[100][3], tarray[100][2];
- int vcount;
-
- glVertexPointer(3, GL_FLOAT, 0, varray);
- glNormalPointer(GL_FLOAT, 0, narray);
- glTexCoordPointer(2, GL_FLOAT, 0, tarray);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_NORMAL_ARRAY);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-
- ringDelta = 2.0 * M_PI / rings;
- sideDelta = 2.0 * M_PI / nsides;
-
- theta = 0.0;
- cosTheta = 1.0;
- sinTheta = 0.0;
- for (i = rings - 1; i >= 0; i--) {
- theta1 = theta + ringDelta;
- cosTheta1 = cos(theta1);
- sinTheta1 = sin(theta1);
-
- vcount = 0; /* glBegin(GL_QUAD_STRIP); */
-
- phi = 0.0;
- for (j = nsides; j >= 0; j--) {
- GLfloat s0, s1, t;
- GLfloat cosPhi, sinPhi, dist;
-
- phi += sideDelta;
- cosPhi = cos(phi);
- sinPhi = sin(phi);
- dist = R + r * cosPhi;
-
- s0 = 20.0 * theta / (2.0 * M_PI);
- s1 = 20.0 * theta1 / (2.0 * M_PI);
- t = 8.0 * phi / (2.0 * M_PI);
-
- Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
- Texcoord(tarray[vcount], s1, t);
- Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
- vcount++;
-
- Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
- Texcoord(tarray[vcount], s0, t);
- Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi);
- vcount++;
- }
-
- /*glEnd();*/
- assert(vcount <= 100);
- glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
-
- theta = theta1;
- cosTheta = cosTheta1;
- sinTheta = sinTheta1;
- }
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_NORMAL_ARRAY);
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-}
-
-
-static void
-draw_torus_to_texture(void)
-{
- glViewport(0, 0, TexWidth, TexHeight);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustumf(-1, 1, -1, 1, 5.0, 60.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
-
- glClearColor(0.4, 0.4, 0.4, 0.0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glBindTexture(GL_TEXTURE_2D, DotTexture);
-
- glEnable(GL_LIGHTING);
-
- glPushMatrix();
- glRotatef(view_roty, 0, 1, 0);
- glScalef(0.5, 0.5, 0.5);
-
- draw_torus(1.0, 3.0, 30, 60);
-
- glPopMatrix();
-
- glDisable(GL_LIGHTING);
-
-#if 0
- glBindTexture(GL_TEXTURE_2D, RenderTexture);
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, TexWidth, TexHeight);
-#endif
-
- glFinish();
-}
-
-
-static void
-draw_textured_quad(void)
-{
- GLfloat ar = (GLfloat) WinWidth / (GLfloat) WinHeight;
-
- glViewport(0, 0, WinWidth, WinHeight);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -8.0);
-
- glClearColor(0.4, 0.4, 1.0, 0.0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glBindTexture(GL_TEXTURE_2D, RenderTexture);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_rotz, 0, 0, 1);
-
- {
- static const GLfloat texcoord[4][2] = {
- { 0, 0 }, { 1, 0 }, { 0, 1 }, { 1, 1 }
- };
- static const GLfloat vertex[4][2] = {
- { -1, -1 }, { 1, -1 }, { -1, 1 }, { 1, 1 }
- };
-
- glVertexPointer(2, GL_FLOAT, 0, vertex);
- glTexCoordPointer(2, GL_FLOAT, 0, texcoord);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-
- glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
- }
-
- glPopMatrix();
-}
-
-
-
-static void
-draw(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
- EGLContext egl_ctx)
-{
- /*printf("Begin draw\n");*/
-
- /* first draw torus to pbuffer /texture */
-#if 01
- if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) {
-#else
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
-#endif
- printf("Error: eglMakeCurrent(pbuf) failed\n");
- return;
- }
- draw_torus_to_texture();
-
- /* draw textured quad to window */
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent(pbuffer) failed\n");
- return;
- }
-
- glBindTexture(GL_TEXTURE_2D, RenderTexture);
- eglBindTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER);
- draw_textured_quad();
- eglReleaseTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER);
-
- eglSwapBuffers(egl_dpy, egl_surf);
-
- /*printf("End draw\n");*/
-}
-
-
-
-static void
-make_dot_texture(void)
-{
-#define SZ 64
- GLenum Filter = GL_LINEAR;
- GLubyte image[SZ][SZ][4];
- GLuint i, j;
-
- for (i = 0; i < SZ; i++) {
- for (j = 0; j < SZ; j++) {
- GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
- d = sqrt(d);
- if (d < SZ/3) {
- image[i][j][0] = 255;
- image[i][j][1] = 255;
- image[i][j][2] = 255;
- image[i][j][3] = 255;
- }
- else {
- image[i][j][0] = 127;
- image[i][j][1] = 127;
- image[i][j][2] = 127;
- image[i][j][3] = 255;
- }
- }
- }
-
- glGenTextures(1, &DotTexture);
- glBindTexture(GL_TEXTURE_2D, DotTexture);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, image);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-#undef SZ
-}
-
-
-static void
-make_render_texture(void)
-{
- GLenum Filter = GL_LINEAR;
- glGenTextures(1, &RenderTexture);
- glBindTexture(GL_TEXTURE_2D, RenderTexture);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TexWidth, TexHeight, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-}
-
-
-static void
-init(void)
-{
- static const GLfloat red[4] = {1, 0, 0, 0};
- static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
- static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
- static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
- static const GLfloat pos[4] = {20, 20, 50, 1};
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
- glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
-
- glEnable(GL_LIGHT0);
- glLightfv(GL_LIGHT0, GL_POSITION, pos);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
- glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
-
- glEnable(GL_DEPTH_TEST);
-
- make_dot_texture();
- make_render_texture();
-
- printf("DotTexture=%u RenderTexture=%u\n", DotTexture, RenderTexture);
-
- glEnable(GL_TEXTURE_2D);
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- eglBindAPI(EGL_OPENGL_ES_API);
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static EGLSurface
-make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height)
-{
- static const EGLint config_attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
- EGLConfig config;
- EGLSurface pbuf;
- EGLint num_configs;
- EGLint pbuf_attribs[15];
- int i = 0;
-
- pbuf_attribs[i++] = EGL_WIDTH;
- pbuf_attribs[i++] = width;
- pbuf_attribs[i++] = EGL_HEIGHT;
- pbuf_attribs[i++] = height;
- pbuf_attribs[i++] = EGL_TEXTURE_FORMAT;
- pbuf_attribs[i++] = EGL_TEXTURE_RGBA;
- pbuf_attribs[i++] = EGL_TEXTURE_TARGET;
- pbuf_attribs[i++] = EGL_TEXTURE_2D;
- pbuf_attribs[i++] = EGL_MIPMAP_TEXTURE;
- pbuf_attribs[i++] = EGL_FALSE;
- pbuf_attribs[i++] = EGL_NONE;
- assert(i <= 15);
-
- if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL config for pbuffer\n");
- exit(1);
- }
-
- pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs);
-
- return pbuf;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
- EGLContext egl_ctx)
-{
- int anim = 0;
-
- while (1) {
- int redraw = 0;
-
- if (!anim || XPending(dpy)) {
- XEvent event;
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- if (event.xconfigure.window == win) {
- WinWidth = event.xconfigure.width;
- WinHeight = event.xconfigure.height;
- }
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == ' ') {
- anim = !anim;
- }
- else if (buffer[0] == 'z') {
- view_rotz += 5.0;
- }
- else if (buffer[0] == 'Z') {
- view_rotz -= 5.0;
- }
- else if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
- }
-
- if (anim) {
- view_rotx += 1.0;
- view_roty += 2.0;
- redraw = 1;
- }
-
- if (redraw) {
- draw(egl_dpy, egl_surf, egl_pbuf, egl_ctx);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf, egl_pbuf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "render_tex", 0, 0, WinWidth, WinHeight,
- &win, &egl_ctx, &egl_surf);
-
- egl_pbuf = make_pbuffer(x_dpy, egl_dpy, TexWidth, TexHeight);
- if (!egl_pbuf) {
- printf("Error: eglCreatePBufferSurface() failed\n");
- return -1;
- }
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
- }
-
- init();
-
- event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
- */
-
-/*
- * Draw a lit, textured torus with X/EGL and OpenGL ES 1.x
- * Brian Paul
- * July 2008
- */
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-#include <EGL/egl.h>
-
-
-static const struct {
- GLenum internalFormat;
- const char *name;
- GLuint num_entries;
- GLuint size;
-} cpal_formats[] = {
- { GL_PALETTE4_RGB8_OES, "GL_PALETTE4_RGB8_OES", 16, 3 },
- { GL_PALETTE4_RGBA8_OES, "GL_PALETTE4_RGBA8_OES", 16, 4 },
- { GL_PALETTE4_R5_G6_B5_OES, "GL_PALETTE4_R5_G6_B5_OES", 16, 2 },
- { GL_PALETTE4_RGBA4_OES, "GL_PALETTE4_RGBA4_OES", 16, 2 },
- { GL_PALETTE4_RGB5_A1_OES, "GL_PALETTE4_RGB5_A1_OES", 16, 2 },
- { GL_PALETTE8_RGB8_OES, "GL_PALETTE8_RGB8_OES", 256, 3 },
- { GL_PALETTE8_RGBA8_OES, "GL_PALETTE8_RGBA8_OES", 256, 4 },
- { GL_PALETTE8_R5_G6_B5_OES, "GL_PALETTE8_R5_G6_B5_OES", 256, 2 },
- { GL_PALETTE8_RGBA4_OES, "GL_PALETTE8_RGBA4_OES", 256, 2 },
- { GL_PALETTE8_RGB5_A1_OES, "GL_PALETTE8_RGB5_A1_OES", 256, 2 }
-};
-#define NUM_CPAL_FORMATS (sizeof(cpal_formats) / sizeof(cpal_formats[0]))
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-static GLint tex_format = NUM_CPAL_FORMATS;
-
-
-static void
-Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
-{
- n[0] = nx;
- n[1] = ny;
- n[2] = nz;
-}
-
-static void
-Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
-{
- v[0] = vx;
- v[1] = vy;
- v[2] = vz;
-}
-
-static void
-Texcoord(GLfloat *v, GLfloat s, GLfloat t)
-{
- v[0] = s;
- v[1] = t;
-}
-
-
-/* Borrowed from glut, adapted */
-static void
-draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
-{
- int i, j;
- GLfloat theta, phi, theta1;
- GLfloat cosTheta, sinTheta;
- GLfloat cosTheta1, sinTheta1;
- GLfloat ringDelta, sideDelta;
- GLfloat varray[100][3], narray[100][3], tarray[100][2];
- int vcount;
-
- glVertexPointer(3, GL_FLOAT, 0, varray);
- glNormalPointer(GL_FLOAT, 0, narray);
- glTexCoordPointer(2, GL_FLOAT, 0, tarray);
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_NORMAL_ARRAY);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-
- ringDelta = 2.0 * M_PI / rings;
- sideDelta = 2.0 * M_PI / nsides;
-
- theta = 0.0;
- cosTheta = 1.0;
- sinTheta = 0.0;
- for (i = rings - 1; i >= 0; i--) {
- theta1 = theta + ringDelta;
- cosTheta1 = cos(theta1);
- sinTheta1 = sin(theta1);
-
- vcount = 0; /* glBegin(GL_QUAD_STRIP); */
-
- phi = 0.0;
- for (j = nsides; j >= 0; j--) {
- GLfloat s0, s1, t;
- GLfloat cosPhi, sinPhi, dist;
-
- phi += sideDelta;
- cosPhi = cos(phi);
- sinPhi = sin(phi);
- dist = R + r * cosPhi;
-
- s0 = 20.0 * theta / (2.0 * M_PI);
- s1 = 20.0 * theta1 / (2.0 * M_PI);
- t = 8.0 * phi / (2.0 * M_PI);
-
- Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
- Texcoord(tarray[vcount], s1, t);
- Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
- vcount++;
-
- Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
- Texcoord(tarray[vcount], s0, t);
- Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist, r * sinPhi);
- vcount++;
- }
-
- /*glEnd();*/
- assert(vcount <= 100);
- glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
-
- theta = theta1;
- cosTheta = cosTheta1;
- sinTheta = sinTheta1;
- }
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_NORMAL_ARRAY);
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-}
-
-
-static void
-draw(void)
-{
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
- glScalef(0.5, 0.5, 0.5);
-
- draw_torus(1.0, 3.0, 30, 60);
-
- glPopMatrix();
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-
-#ifdef GL_VERSION_ES_CM_1_0
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-#else
- glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
-#endif
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
-}
-
-
-static GLint
-make_cpal_texture(GLint idx)
-{
-#define SZ 64
- GLenum internalFormat = GL_PALETTE4_RGB8_OES + idx;
- GLenum Filter = GL_LINEAR;
- GLubyte palette[256 * 4 + SZ * SZ];
- GLubyte *indices;
- GLsizei image_size;
- GLuint i, j;
- GLuint packed_indices = 0;
-
- assert(cpal_formats[idx].internalFormat == internalFormat);
-
- /* init palette */
- switch (internalFormat) {
- case GL_PALETTE4_RGB8_OES:
- case GL_PALETTE8_RGB8_OES:
- /* first entry */
- palette[0] = 255;
- palette[1] = 255;
- palette[2] = 255;
- /* second entry */
- palette[3] = 127;
- palette[4] = 127;
- palette[5] = 127;
- break;
- case GL_PALETTE4_RGBA8_OES:
- case GL_PALETTE8_RGBA8_OES:
- /* first entry */
- palette[0] = 255;
- palette[1] = 255;
- palette[2] = 255;
- palette[3] = 255;
- /* second entry */
- palette[4] = 127;
- palette[5] = 127;
- palette[6] = 127;
- palette[7] = 255;
- break;
- case GL_PALETTE4_R5_G6_B5_OES:
- case GL_PALETTE8_R5_G6_B5_OES:
- {
- GLushort *pal = (GLushort *) palette;
- /* first entry */
- pal[0] = (31 << 11 | 63 << 5 | 31);
- /* second entry */
- pal[1] = (15 << 11 | 31 << 5 | 15);
- }
- break;
- case GL_PALETTE4_RGBA4_OES:
- case GL_PALETTE8_RGBA4_OES:
- {
- GLushort *pal = (GLushort *) palette;
- /* first entry */
- pal[0] = (15 << 12 | 15 << 8 | 15 << 4 | 15);
- /* second entry */
- pal[1] = (7 << 12 | 7 << 8 | 7 << 4 | 15);
- }
- break;
- case GL_PALETTE4_RGB5_A1_OES:
- case GL_PALETTE8_RGB5_A1_OES:
- {
- GLushort *pal = (GLushort *) palette;
- /* first entry */
- pal[0] = (31 << 11 | 31 << 6 | 31 << 1 | 1);
- /* second entry */
- pal[1] = (15 << 11 | 15 << 6 | 15 << 1 | 1);
- }
- break;
- }
-
- image_size = cpal_formats[idx].size * cpal_formats[idx].num_entries;
- indices = palette + image_size;
- for (i = 0; i < SZ; i++) {
- for (j = 0; j < SZ; j++) {
- GLfloat d;
- GLint index;
- d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
- d = sqrt(d);
- index = (d < SZ / 3) ? 0 : 1;
-
- if (cpal_formats[idx].num_entries == 16) {
- /* 4-bit indices packed in GLubyte */
- packed_indices |= index << (4 * (1 - (j % 2)));
- if (j % 2) {
- *(indices + (i * SZ + j - 1) / 2) = packed_indices & 0xff;
- packed_indices = 0;
- image_size += 1;
- }
- }
- else {
- /* 8-bit indices */
- *(indices + i * SZ + j) = index;
- image_size += 1;
- }
- }
- }
-
- glActiveTexture(GL_TEXTURE0); /* unit 0 */
- glBindTexture(GL_TEXTURE_2D, 42);
- glCompressedTexImage2D(GL_TEXTURE_2D, 0, internalFormat, SZ, SZ, 0,
- image_size, palette);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-#undef SZ
-
- return image_size;
-}
-
-
-static GLint
-make_texture(void)
-{
-#define SZ 64
- GLenum Filter = GL_LINEAR;
- GLubyte image[SZ][SZ][4];
- GLuint i, j;
-
- for (i = 0; i < SZ; i++) {
- for (j = 0; j < SZ; j++) {
- GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
- d = sqrt(d);
- if (d < SZ/3) {
- image[i][j][0] = 255;
- image[i][j][1] = 255;
- image[i][j][2] = 255;
- image[i][j][3] = 255;
- }
- else {
- image[i][j][0] = 127;
- image[i][j][1] = 127;
- image[i][j][2] = 127;
- image[i][j][3] = 255;
- }
- }
- }
-
- glActiveTexture(GL_TEXTURE0); /* unit 0 */
- glBindTexture(GL_TEXTURE_2D, 42);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, image);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-#undef SZ
-
- return sizeof(image);
-}
-
-
-
-static void
-init(void)
-{
- static const GLfloat red[4] = {1, 0, 0, 0};
- static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
- static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
- static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
- static const GLfloat pos[4] = {20, 20, 50, 1};
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
- glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
-
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glLightfv(GL_LIGHT0, GL_POSITION, pos);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
- glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
-
- glClearColor(0.4, 0.4, 0.4, 0.0);
- glEnable(GL_DEPTH_TEST);
-
- make_texture();
- glEnable(GL_TEXTURE_2D);
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- eglBindAPI(EGL_OPENGL_ES_API);
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
- int anim = 1;
-
- while (1) {
- int redraw = 0;
-
- if (!anim || XPending(dpy)) {
- XEvent event;
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else if (code == XK_t) {
- GLint size;
- tex_format = (tex_format + 1) % (NUM_CPAL_FORMATS + 1);
- if (tex_format < NUM_CPAL_FORMATS) {
- size = make_cpal_texture(tex_format);
- printf("Using %s (%d bytes)\n",
- cpal_formats[tex_format].name, size);
- }
- else {
- size = make_texture();
- printf("Using uncompressed texture (%d bytes)\n", size);
- }
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == ' ') {
- anim = !anim;
- }
- else if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
- }
-
- if (anim) {
- view_rotx += 1.0;
- view_roty += 2.0;
- redraw = 1;
- }
-
- if (redraw) {
- draw();
- eglSwapBuffers(egl_dpy, egl_surf);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 300, winHeight = 300;
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "torus", 0, 0, winWidth, winHeight,
- &win, &egl_ctx, &egl_surf);
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
- }
-
- init();
-
- /* Set initial projection/viewing transformation.
- * We can't be sure we'll get a ConfigureNotify event when the window
- * first appears.
- */
- reshape(winWidth, winHeight);
-
- event_loop(x_dpy, win, egl_dpy, egl_surf);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * Draw a triangle with X/EGL and OpenGL ES 1.x
- * Brian Paul
- * 5 June 2008
- */
-
-#define USE_FULL_GL 0
-
-#define USE_FIXED_POINT 0
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#if USE_FULL_GL
-#include <GL/gl.h> /* use full OpenGL */
-#else
-#include <GLES/gl.h> /* use OpenGL ES 1.x */
-#include <GLES/glext.h>
-#endif
-#include <EGL/egl.h>
-
-
-#define FLOAT_TO_FIXED(X) ((X) * 65535.0)
-
-
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-
-
-static void
-draw(void)
-{
-#if USE_FIXED_POINT
- static const GLfixed verts[3][2] = {
- { -65536, -65536 },
- { 65536, -65536 },
- { 0, 65536 }
- };
- static const GLfixed colors[3][4] = {
- { 65536, 0, 0, 65536 },
- { 0, 65536, 0 , 65536},
- { 0, 0, 65536 , 65536}
- };
-#else
- static const GLfloat verts[3][2] = {
- { -1, -1 },
- { 1, -1 },
- { 0, 1 }
- };
- static const GLfloat colors[3][4] = {
- { 1, 0, 0, 1 },
- { 0, 1, 0, 1 },
- { 0, 0, 1, 1 }
- };
-#endif
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
-
- {
-#if USE_FIXED_POINT
- glVertexPointer(2, GL_FIXED, 0, verts);
- glColorPointer(4, GL_FIXED, 0, colors);
-#else
- glVertexPointer(2, GL_FLOAT, 0, verts);
- glColorPointer(4, GL_FLOAT, 0, colors);
-#endif
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_COLOR_ARRAY);
-
- /* draw triangle */
- glDrawArrays(GL_TRIANGLES, 0, 3);
-
- /* draw some points */
- glPointSizex(FLOAT_TO_FIXED(15.5));
- glDrawArrays(GL_POINTS, 0, 3);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
- }
-
- if (0) {
- /* test code */
- GLfixed size;
- glGetFixedv(GL_POINT_SIZE, &size);
- printf("GL_POINT_SIZE = 0x%x %f\n", size, size / 65536.0);
- }
-
- glPopMatrix();
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-#ifdef GL_VERSION_ES_CM_1_0
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-#else
- glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
-#endif
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -10.0);
-}
-
-
-static void
-test_query_matrix(void)
-{
- PFNGLQUERYMATRIXXOESPROC procQueryMatrixx;
- typedef void (*voidproc)();
- GLfixed mantissa[16];
- GLint exponent[16];
- GLbitfield rv;
- int i;
-
- procQueryMatrixx = (PFNGLQUERYMATRIXXOESPROC) eglGetProcAddress("glQueryMatrixxOES");
- assert(procQueryMatrixx);
- /* Actually try out this one */
- rv = (*procQueryMatrixx)(mantissa, exponent);
- for (i = 0; i < 16; i++) {
- if (rv & (1<<i)) {
- printf("matrix[%d] invalid\n", i);
- }
- else {
- printf("matrix[%d] = %f * 2^(%d)\n", i, mantissa[i]/65536.0, exponent[i]);
- }
- }
- assert(!eglGetProcAddress("glFoo"));
-}
-
-
-static void
-init(void)
-{
- glClearColor(0.4, 0.4, 0.4, 0.0);
-
- if (0)
- test_query_matrix();
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
-#if USE_FULL_GL
- eglBindAPI(EGL_OPENGL_API);
-#else
- eglBindAPI(EGL_OPENGL_ES_API);
-#endif
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
- while (1) {
- int redraw = 0;
- XEvent event;
-
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
-
- if (redraw) {
- draw();
- eglSwapBuffers(egl_dpy, egl_surf);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 300, winHeight = 300;
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- static struct {
- char *name;
- GLenum value;
- enum {GetString, GetInteger} type;
- } info_items[] = {
- {"GL_RENDERER", GL_RENDERER, GetString},
- {"GL_VERSION", GL_VERSION, GetString},
- {"GL_VENDOR", GL_VENDOR, GetString},
- {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
- {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
- {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
- };
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "OpenGL ES 1.x tri", 0, 0, winWidth, winHeight,
- &win, &egl_ctx, &egl_surf);
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
- switch (info_items[i].type) {
- case GetString:
- printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
- break;
- case GetInteger: {
- GLint rv = -1;
- glGetIntegerv(info_items[i].value, &rv);
- printf("%s = %d\n", info_items[i].name, rv);
- break;
- }
- }
- }
- };
- init();
-
- /* Set initial projection/viewing transformation.
- * We can't be sure we'll get a ConfigureNotify event when the window
- * first appears.
- */
- reshape(winWidth, winHeight);
-
- event_loop(x_dpy, win, egl_dpy, egl_surf);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * Test drawing to two windows.
- * Brian Paul
- * August 2008
- */
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <GLES/gl.h>
-#include <GLES/glext.h>
-#include <EGL/egl.h>
-
-
-static int WinWidth[2] = {150, 300}, WinHeight[2] = {150, 300};
-
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- GLfloat ar = (GLfloat) width / (GLfloat) height;
-
- glViewport(0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
-#ifdef GL_VERSION_ES_CM_1_0
- glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
-#else
- glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
-#endif
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -10.0);
-}
-
-
-static void
-draw(int win)
-{
- static const GLfloat verts[3][2] = {
- { -1, -1 },
- { 1, -1 },
- { 0, 1 }
- };
- static const GLfloat colors[3][4] = {
- { 1, 0, 0, 1 },
- { 0, 1, 0, 1 },
- { 0, 0, 1, 1 }
- };
-
- assert(win == 0 || win == 1);
-
- reshape(WinWidth[win], WinHeight[win]);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(view_rotx, 1, 0, 0);
- glRotatef(view_roty, 0, 1, 0);
- glRotatef(view_rotz, 0, 0, 1);
-
- /* draw triangle */
- {
- glVertexPointer(2, GL_FLOAT, 0, verts);
- glColorPointer(4, GL_FLOAT, 0, colors);
-
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_COLOR_ARRAY);
-
- glDrawArrays(GL_TRIANGLES, 0, 3);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
- }
-
- glPopMatrix();
-}
-
-
-static void
-init(void)
-{
- glClearColor(0.4, 0.4, 0.4, 0.0);
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_NONE
- };
-
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, x, y, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
-#if USE_FULL_GL
- eglBindAPI(EGL_OPENGL_API);
-#else
- eglBindAPI(EGL_OPENGL_ES_API);
-#endif
-
- if (ctxRet) {
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
- *ctxRet = ctx;
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
-
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- XFree(visInfo);
-
- *winRet = win;
-}
-
-
-static void
-event_loop(Display *dpy, Window win1, Window win2,
- EGLDisplay egl_dpy, EGLSurface egl_surf1, EGLSurface egl_surf2,
- EGLContext egl_ctx)
-{
- while (1) {
- int redraw = 0;
- int win;
- XEvent event;
-
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- if (event.xconfigure.window == win1)
- win = 0;
- else
- win = 1;
- WinWidth[win] = event.xconfigure.width;
- WinHeight[win] = event.xconfigure.height;
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
-
- if (redraw) {
- /* win 1 */
- if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) {
- printf("Error: eglMakeCurrent(1) failed\n");
- return;
- }
- draw(0);
- eglSwapBuffers(egl_dpy, egl_surf1);
-
- /* win 2 */
- if (!eglMakeCurrent(egl_dpy, egl_surf2, egl_surf2, egl_ctx)) {
- printf("Error: eglMakeCurrent(2) failed\n");
- return;
- }
- draw(1);
- eglSwapBuffers(egl_dpy, egl_surf2);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- Display *x_dpy;
- Window win1, win2;
- EGLSurface egl_surf1, egl_surf2;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- static struct {
- char *name;
- GLenum value;
- enum {GetString, GetInteger} type;
- } info_items[] = {
- {"GL_RENDERER", GL_RENDERER, GetString},
- {"GL_VERSION", GL_VERSION, GetString},
- {"GL_VENDOR", GL_VENDOR, GetString},
- {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
- {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
- {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
- };
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "xegl_two_win #1", 0, 0, WinWidth[0], WinHeight[0],
- &win1, &egl_ctx, &egl_surf1);
-
- make_x_window(x_dpy, egl_dpy,
- "xegl_two_win #2", WinWidth[0] + 50, 0,
- WinWidth[1], WinHeight[1],
- &win2, NULL, &egl_surf2);
-
- XMapWindow(x_dpy, win1);
-
- XMapWindow(x_dpy, win2);
-
- if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
- switch (info_items[i].type) {
- case GetString:
- printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
- break;
- case GetInteger: {
- GLint rv = -1;
- glGetIntegerv(info_items[i].value, &rv);
- printf("%s = %d\n", info_items[i].name, rv);
- break;
- }
- }
- }
- };
-
- init();
-
- event_loop(x_dpy, win1, win2, egl_dpy, egl_surf1, egl_surf2, egl_ctx);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf1);
- eglDestroySurface(egl_dpy, egl_surf2);
- eglTerminate(egl_dpy);
-
- XDestroyWindow(x_dpy, win1);
- XDestroyWindow(x_dpy, win2);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
+++ /dev/null
-xegl/es2_info.c
-xegl/es2_info
-xegl/tri
+++ /dev/null
-# progs/es2/xegl/Makefile
-
-TOP = ../../..
-include $(TOP)/configs/current
-
-
-INCLUDE_DIRS = \
- -I$(TOP)/include \
-
-HEADERS = $(TOP)/include/GLES/egl.h
-
-
-ES2_LIB_DEPS = \
- $(TOP)/$(LIB_DIR)/libEGL.so \
- $(TOP)/$(LIB_DIR)/libGLESv2.so
-
-
-ES2_LIBS = \
- -L$(TOP)/$(LIB_DIR) -lEGL \
- -L$(TOP)/$(LIB_DIR) -lGLESv2 $(LIBDRM_LIB) -lX11
-
-PROGRAMS = \
- es2_info \
- tri
-
-
-.c.o:
- $(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
-
-
-
-default: $(PROGRAMS)
-
-
-
-es2_info.c: ../../es1/xegl/es1_info.c
- cp -f $^ $@
-
-es2_info: es2_info.o $(ES2_LIB_DEPS)
- $(CC) $(CFLAGS) es2_info.o $(ES2_LIBS) -o $@
-
-tri: tri.o $(ES2_LIB_DEPS)
- $(CC) $(CFLAGS) tri.o $(ES2_LIBS) -o $@
-
-
-
-clean:
- rm -f *.o *~
- rm -f $(PROGRAMS)
- rm -f es2_info.c
-
+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-/*
- * Draw a triangle with X/EGL and OpenGL ES 2.x
- */
-
-#define USE_FULL_GL 0
-
-
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#if USE_FULL_GL
-#include <GL/gl.h> /* use full OpenGL */
-#else
-#include <GLES2/gl2.h> /* use OpenGL ES 2.x */
-#endif
-#include <EGL/egl.h>
-
-
-#define FLOAT_TO_FIXED(X) ((X) * 65535.0)
-
-
-
-static GLfloat view_rotx = 0.0, view_roty = 0.0;
-
-static GLint u_matrix = -1;
-static GLint attr_pos = 0, attr_color = 1;
-
-
-static void
-make_z_rot_matrix(GLfloat angle, GLfloat *m)
-{
- float c = cos(angle * M_PI / 180.0);
- float s = sin(angle * M_PI / 180.0);
- int i;
- for (i = 0; i < 16; i++)
- m[i] = 0.0;
- m[0] = m[5] = m[10] = m[15] = 1.0;
-
- m[0] = c;
- m[1] = s;
- m[4] = -s;
- m[5] = c;
-}
-
-static void
-make_scale_matrix(GLfloat xs, GLfloat ys, GLfloat zs, GLfloat *m)
-{
- int i;
- for (i = 0; i < 16; i++)
- m[i] = 0.0;
- m[0] = xs;
- m[5] = ys;
- m[10] = zs;
- m[15] = 1.0;
-}
-
-
-static void
-mul_matrix(GLfloat *prod, const GLfloat *a, const GLfloat *b)
-{
-#define A(row,col) a[(col<<2)+row]
-#define B(row,col) b[(col<<2)+row]
-#define P(row,col) p[(col<<2)+row]
- GLfloat p[16];
- GLint i;
- for (i = 0; i < 4; i++) {
- const GLfloat ai0=A(i,0), ai1=A(i,1), ai2=A(i,2), ai3=A(i,3);
- P(i,0) = ai0 * B(0,0) + ai1 * B(1,0) + ai2 * B(2,0) + ai3 * B(3,0);
- P(i,1) = ai0 * B(0,1) + ai1 * B(1,1) + ai2 * B(2,1) + ai3 * B(3,1);
- P(i,2) = ai0 * B(0,2) + ai1 * B(1,2) + ai2 * B(2,2) + ai3 * B(3,2);
- P(i,3) = ai0 * B(0,3) + ai1 * B(1,3) + ai2 * B(2,3) + ai3 * B(3,3);
- }
- memcpy(prod, p, sizeof(p));
-#undef A
-#undef B
-#undef PROD
-}
-
-
-static void
-draw(void)
-{
- static const GLfloat verts[3][2] = {
- { -1, -1 },
- { 1, -1 },
- { 0, 1 }
- };
- static const GLfloat colors[3][3] = {
- { 1, 0, 0 },
- { 0, 1, 0 },
- { 0, 0, 1 }
- };
- GLfloat mat[16], rot[16], scale[16];
-
- /* Set modelview/projection matrix */
- make_z_rot_matrix(view_rotx, rot);
- make_scale_matrix(0.5, 0.5, 0.5, scale);
- mul_matrix(mat, rot, scale);
- glUniformMatrix4fv(u_matrix, 1, GL_FALSE, mat);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- {
- glVertexAttribPointer(attr_pos, 2, GL_FLOAT, GL_FALSE, 0, verts);
- glVertexAttribPointer(attr_color, 3, GL_FLOAT, GL_FALSE, 0, colors);
- glEnableVertexAttribArray(attr_pos);
- glEnableVertexAttribArray(attr_color);
-
- glDrawArrays(GL_TRIANGLES, 0, 3);
-
- glDisableVertexAttribArray(attr_pos);
- glDisableVertexAttribArray(attr_color);
- }
-}
-
-
-/* new window size or exposure */
-static void
-reshape(int width, int height)
-{
- glViewport(0, 0, (GLint) width, (GLint) height);
-}
-
-
-static void
-create_shaders(void)
-{
- static const char *fragShaderText =
- "varying vec4 v_color;\n"
- "void main() {\n"
- " gl_FragColor = v_color;\n"
- "}\n";
- static const char *vertShaderText =
- "uniform mat4 modelviewProjection;\n"
- "attribute vec4 pos;\n"
- "attribute vec4 color;\n"
- "varying vec4 v_color;\n"
- "void main() {\n"
- " gl_Position = modelviewProjection * pos;\n"
- " v_color = color;\n"
- "}\n";
-
- GLuint fragShader, vertShader, program;
- GLint stat;
-
- fragShader = glCreateShader(GL_FRAGMENT_SHADER);
- glShaderSource(fragShader, 1, (const char **) &fragShaderText, NULL);
- glCompileShader(fragShader);
- glGetShaderiv(fragShader, GL_COMPILE_STATUS, &stat);
- if (!stat) {
- printf("Error: fragment shader did not compile!\n");
- exit(1);
- }
-
- vertShader = glCreateShader(GL_VERTEX_SHADER);
- glShaderSource(vertShader, 1, (const char **) &vertShaderText, NULL);
- glCompileShader(vertShader);
- glGetShaderiv(vertShader, GL_COMPILE_STATUS, &stat);
- if (!stat) {
- printf("Error: vertex shader did not compile!\n");
- exit(1);
- }
-
- program = glCreateProgram();
- glAttachShader(program, fragShader);
- glAttachShader(program, vertShader);
- glLinkProgram(program);
-
- glGetProgramiv(program, GL_LINK_STATUS, &stat);
- if (!stat) {
- char log[1000];
- GLsizei len;
- glGetProgramInfoLog(program, 1000, &len, log);
- printf("Error: linking:\n%s\n", log);
- exit(1);
- }
-
- glUseProgram(program);
-
- if (1) {
- /* test setting attrib locations */
- glBindAttribLocation(program, attr_pos, "pos");
- glBindAttribLocation(program, attr_color, "color");
- glLinkProgram(program); /* needed to put attribs into effect */
- }
- else {
- /* test automatic attrib locations */
- attr_pos = glGetAttribLocation(program, "pos");
- attr_color = glGetAttribLocation(program, "color");
- }
-
- u_matrix = glGetUniformLocation(program, "modelviewProjection");
- printf("Uniform modelviewProjection at %d\n", u_matrix);
- printf("Attrib pos at %d\n", attr_pos);
- printf("Attrib color at %d\n", attr_color);
-}
-
-
-static void
-init(void)
-{
- typedef void (*proc)();
-
-#if 1 /* test code */
- proc p = eglGetProcAddress("glMapBufferOES");
- assert(p);
-#endif
-
- glClearColor(0.4, 0.4, 0.4, 0.0);
-
- create_shaders();
-}
-
-
-/*
- * Create an RGB, double-buffered X window.
- * Return the window and context handles.
- */
-static void
-make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
- const char *name,
- int x, int y, int width, int height,
- Window *winRet,
- EGLContext *ctxRet,
- EGLSurface *surfRet)
-{
- static const EGLint attribs[] = {
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
- EGL_NONE
- };
- static const EGLint ctx_attribs[] = {
- EGL_CONTEXT_CLIENT_VERSION, 2,
- EGL_NONE
- };
- int scrnum;
- XSetWindowAttributes attr;
- unsigned long mask;
- Window root;
- Window win;
- XVisualInfo *visInfo, visTemplate;
- int num_visuals;
- EGLContext ctx;
- EGLConfig config;
- EGLint num_configs;
- EGLint vid;
-
- scrnum = DefaultScreen( x_dpy );
- root = RootWindow( x_dpy, scrnum );
-
- if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
- printf("Error: couldn't get an EGL visual config\n");
- exit(1);
- }
-
- assert(config);
- assert(num_configs > 0);
-
- if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
- printf("Error: eglGetConfigAttrib() failed\n");
- exit(1);
- }
-
- /* The X window visual must match the EGL config */
- visTemplate.visualid = vid;
- visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
- if (!visInfo) {
- printf("Error: couldn't get X visual\n");
- exit(1);
- }
-
- /* window attributes */
- attr.background_pixel = 0;
- attr.border_pixel = 0;
- attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
- attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
-
- win = XCreateWindow( x_dpy, root, 0, 0, width, height,
- 0, visInfo->depth, InputOutput,
- visInfo->visual, mask, &attr );
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = width;
- sizehints.height = height;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(x_dpy, win, &sizehints);
- XSetStandardProperties(x_dpy, win, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
-#if USE_FULL_GL /* XXX fix this when eglBindAPI() works */
- eglBindAPI(EGL_OPENGL_API);
-#else
- eglBindAPI(EGL_OPENGL_ES_API);
-#endif
-
- ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
- if (!ctx) {
- printf("Error: eglCreateContext failed\n");
- exit(1);
- }
-
- /* test eglQueryContext() */
- {
- EGLint val;
- eglQueryContext(egl_dpy, ctx, EGL_CONTEXT_CLIENT_VERSION, &val);
- assert(val == 2);
- }
-
- *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
- if (!*surfRet) {
- printf("Error: eglCreateWindowSurface failed\n");
- exit(1);
- }
-
- /* sanity checks */
- {
- EGLint val;
- eglQuerySurface(egl_dpy, *surfRet, EGL_WIDTH, &val);
- assert(val == width);
- eglQuerySurface(egl_dpy, *surfRet, EGL_HEIGHT, &val);
- assert(val == height);
- assert(eglGetConfigAttrib(egl_dpy, config, EGL_SURFACE_TYPE, &val));
- assert(val & EGL_WINDOW_BIT);
- }
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
-}
-
-
-static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf)
-{
- while (1) {
- int redraw = 0;
- XEvent event;
-
- XNextEvent(dpy, &event);
-
- switch (event.type) {
- case Expose:
- redraw = 1;
- break;
- case ConfigureNotify:
- reshape(event.xconfigure.width, event.xconfigure.height);
- break;
- case KeyPress:
- {
- char buffer[10];
- int r, code;
- code = XLookupKeysym(&event.xkey, 0);
- if (code == XK_Left) {
- view_roty += 5.0;
- }
- else if (code == XK_Right) {
- view_roty -= 5.0;
- }
- else if (code == XK_Up) {
- view_rotx += 5.0;
- }
- else if (code == XK_Down) {
- view_rotx -= 5.0;
- }
- else {
- r = XLookupString(&event.xkey, buffer, sizeof(buffer),
- NULL, NULL);
- if (buffer[0] == 27) {
- /* escape */
- return;
- }
- }
- }
- redraw = 1;
- break;
- default:
- ; /*no-op*/
- }
-
- if (redraw) {
- draw();
- eglSwapBuffers(egl_dpy, egl_surf);
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 300, winHeight = 300;
- Display *x_dpy;
- Window win;
- EGLSurface egl_surf;
- EGLContext egl_ctx;
- EGLDisplay egl_dpy;
- char *dpyName = NULL;
- GLboolean printInfo = GL_FALSE;
- EGLint egl_major, egl_minor;
- int i;
- const char *s;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-display") == 0) {
- dpyName = argv[i+1];
- i++;
- }
- else if (strcmp(argv[i], "-info") == 0) {
- printInfo = GL_TRUE;
- }
- else {
- usage();
- return -1;
- }
- }
-
- x_dpy = XOpenDisplay(dpyName);
- if (!x_dpy) {
- printf("Error: couldn't open display %s\n",
- dpyName ? dpyName : getenv("DISPLAY"));
- return -1;
- }
-
- egl_dpy = eglGetDisplay(x_dpy);
- if (!egl_dpy) {
- printf("Error: eglGetDisplay() failed\n");
- return -1;
- }
-
- if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
- printf("Error: eglInitialize() failed\n");
- return -1;
- }
-
- s = eglQueryString(egl_dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_VENDOR);
- printf("EGL_VENDOR = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
- printf("EGL_EXTENSIONS = %s\n", s);
-
- s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
- printf("EGL_CLIENT_APIS = %s\n", s);
-
- make_x_window(x_dpy, egl_dpy,
- "OpenGL ES 2.x tri", 0, 0, winWidth, winHeight,
- &win, &egl_ctx, &egl_surf);
-
- XMapWindow(x_dpy, win);
- if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
- printf("Error: eglMakeCurrent() failed\n");
- return -1;
- }
-
- if (printInfo) {
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
- printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
- printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
- printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
- }
-
- init();
-
- /* Set initial projection/viewing transformation.
- * We can't be sure we'll get a ConfigureNotify event when the window
- * first appears.
- */
- reshape(winWidth, winHeight);
-
- event_loop(x_dpy, win, egl_dpy, egl_surf);
-
- eglDestroyContext(egl_dpy, egl_ctx);
- eglDestroySurface(egl_dpy, egl_surf);
- eglTerminate(egl_dpy);
-
-
- XDestroyWindow(x_dpy, win);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
projects / mesa.git / commitdiff