+++ /dev/null
-/*
- * 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.
- */
-
-/*
- * Ported to X/EGL/GLES. XXX Actually, uses full OpenGL ATM.
- * Brian Paul
- * 30 May 2008
- */
-
-/*
- * Command line options:
- * -info print GL implementation information
- *
- */
-
-
-#define GL_GLEXT_PROTOTYPES
-#define EGL_EGLEXT_PROTOTYPES
-
-#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 <GL/gl.h>
-#include <EGL/egl.h>
-
-#include <EGL/eglext.h>
-
-
-#define BENCHMARK
-
-#ifdef BENCHMARK
-
-/* XXX this probably isn't very portable */
-
-#include <sys/time.h>
-#include <unistd.h>
-
-/* return current time (in seconds) */
-static double
-current_time(void)
-{
- struct timeval tv;
-#ifdef __VMS
- (void) gettimeofday(&tv, NULL );
-#else
- struct timezone tz;
- (void) gettimeofday(&tv, &tz);
-#endif
- return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
-}
-
-#else /*BENCHMARK*/
-
-/* dummy */
-static double
-current_time(void)
-{
- /* update this function for other platforms! */
- static double t = 0.0;
- static int warn = 1;
- if (warn) {
- fprintf(stderr, "Warning: current_time() not implemented!!\n");
- warn = 0;
- }
- return t += 1.0;
-}
-
-#endif /*BENCHMARK*/
-
-
-
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-
-static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
-static GLint gear1, gear2, gear3;
-static GLfloat angle = 0.0;
-
-/*
- *
- * Draw a gear wheel. You'll probably want to call this function when
- * building a display list since we do a lot of trig here.
- *
- * Input: 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
-gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
- GLint teeth, GLfloat tooth_depth)
-{
- GLint i;
- GLfloat r0, r1, r2;
- GLfloat angle, da;
- GLfloat u, v, len;
-
- r0 = inner_radius;
- r1 = outer_radius - tooth_depth / 2.0;
- r2 = outer_radius + tooth_depth / 2.0;
-
- da = 2.0 * M_PI / teeth / 4.0;
-
- glShadeModel(GL_FLAT);
-
- glNormal3f(0.0, 0.0, 1.0);
-
- /* draw front face */
- glBegin(GL_QUAD_STRIP);
- for (i = 0; i <= teeth; i++) {
- angle = i * 2.0 * M_PI / teeth;
- glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
- glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
- if (i < teeth) {
- glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
- glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
- width * 0.5);
- }
- }
- glEnd();
-
- /* draw front sides of teeth */
- glBegin(GL_QUADS);
- da = 2.0 * M_PI / teeth / 4.0;
- for (i = 0; i < teeth; i++) {
- angle = i * 2.0 * M_PI / teeth;
-
- glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
- glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
- glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
- width * 0.5);
- glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
- width * 0.5);
- }
- glEnd();
-
- glNormal3f(0.0, 0.0, -1.0);
-
- /* draw back face */
- glBegin(GL_QUAD_STRIP);
- for (i = 0; i <= teeth; i++) {
- angle = i * 2.0 * M_PI / teeth;
- glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
- glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
- if (i < teeth) {
- glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
- -width * 0.5);
- glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
- }
- }
- glEnd();
-
- /* draw back sides of teeth */
- glBegin(GL_QUADS);
- da = 2.0 * M_PI / teeth / 4.0;
- for (i = 0; i < teeth; i++) {
- angle = i * 2.0 * M_PI / teeth;
-
- glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
- -width * 0.5);
- glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
- -width * 0.5);
- glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
- glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
- }
- glEnd();
-
- /* draw outward faces of teeth */
- glBegin(GL_QUAD_STRIP);
- for (i = 0; i < teeth; i++) {
- angle = i * 2.0 * M_PI / teeth;
-
- glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
- glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
- u = r2 * cos(angle + da) - r1 * cos(angle);
- v = r2 * sin(angle + da) - r1 * sin(angle);
- len = sqrt(u * u + v * v);
- u /= len;
- v /= len;
- glNormal3f(v, -u, 0.0);
- glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
- glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
- glNormal3f(cos(angle), sin(angle), 0.0);
- glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
- width * 0.5);
- glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
- -width * 0.5);
- u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
- v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
- glNormal3f(v, -u, 0.0);
- glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
- width * 0.5);
- glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
- -width * 0.5);
- glNormal3f(cos(angle), sin(angle), 0.0);
- }
-
- glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
- glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
-
- glEnd();
-
- glShadeModel(GL_SMOOTH);
-
- /* draw inside radius cylinder */
- glBegin(GL_QUAD_STRIP);
- for (i = 0; i <= teeth; i++) {
- angle = i * 2.0 * M_PI / teeth;
- glNormal3f(-cos(angle), -sin(angle), 0.0);
- glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
- glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
- }
- glEnd();
-}
-
-
-static void
-draw(void)
-{
- glClearColor(0.2, 0.2, 0.2, 0.2);
- 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);
- glCallList(gear1);
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef(3.1, -2.0, 0.0);
- glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
- glCallList(gear2);
- glPopMatrix();
-
- glPushMatrix();
- glTranslatef(-3.1, 4.2, 0.0);
- glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0);
- glCallList(gear3);
- glPopMatrix();
-
- 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();
- glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -40.0);
-}
-
-
-
-static void
-init(void)
-{
- static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
- static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
- static GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
- static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };
-
- glLightfv(GL_LIGHT0, GL_POSITION, pos);
- glEnable(GL_CULL_FACE);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_DEPTH_TEST);
-
- /* make the gears */
- gear1 = glGenLists(1);
- glNewList(gear1, GL_COMPILE);
- glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
- gear(1.0, 4.0, 1.0, 20, 0.7);
- glEndList();
-
- gear2 = glGenLists(1);
- glNewList(gear2, GL_COMPILE);
- glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
- gear(0.5, 2.0, 2.0, 10, 0.7);
- glEndList();
-
- gear3 = glGenLists(1);
- glNewList(gear3, GL_COMPILE);
- glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
- gear(1.3, 2.0, 0.5, 10, 0.7);
- glEndList();
-
- glEnable(GL_NORMALIZE);
-}
-
-
-struct egl_manager {
- EGLNativeDisplayType xdpy;
- EGLNativeWindowType xwin;
- EGLNativePixmapType xpix;
-
- EGLDisplay dpy;
- EGLConfig conf;
- EGLContext ctx;
-
- EGLSurface win;
- EGLSurface pix;
- EGLSurface pbuf;
- EGLImageKHR image;
-
- EGLBoolean verbose;
- EGLint major, minor;
-
- GC gc;
- GLuint fbo;
-};
-
-static struct egl_manager *
-egl_manager_new(EGLNativeDisplayType xdpy, const EGLint *attrib_list,
- EGLBoolean verbose)
-{
- struct egl_manager *eman;
- const char *ver;
- EGLint num_conf;
-
- eman = calloc(1, sizeof(*eman));
- if (!eman)
- return NULL;
-
- eman->verbose = verbose;
- eman->xdpy = xdpy;
-
- eman->dpy = eglGetDisplay(eman->xdpy);
- if (eman->dpy == EGL_NO_DISPLAY) {
- printf("eglGetDisplay() failed\n");
- free(eman);
- return NULL;
- }
-
- if (!eglInitialize(eman->dpy, &eman->major, &eman->minor)) {
- printf("eglInitialize() failed\n");
- free(eman);
- return NULL;
- }
-
- ver = eglQueryString(eman->dpy, EGL_VERSION);
- printf("EGL_VERSION = %s\n", ver);
-
- if (!eglChooseConfig(eman->dpy, attrib_list, &eman->conf, 1, &num_conf) ||
- !num_conf) {
- printf("eglChooseConfig() failed\n");
- eglTerminate(eman->dpy);
- free(eman);
- return NULL;
- }
-
- eman->ctx = eglCreateContext(eman->dpy, eman->conf, EGL_NO_CONTEXT, NULL);
- if (eman->ctx == EGL_NO_CONTEXT) {
- printf("eglCreateContext() failed\n");
- eglTerminate(eman->dpy);
- free(eman);
- return NULL;
- }
-
- return eman;
-}
-
-static EGLBoolean
-egl_manager_create_window(struct egl_manager *eman, const char *name,
- EGLint w, EGLint h, EGLBoolean need_surface,
- EGLBoolean fullscreen, const EGLint *attrib_list)
-{
- XVisualInfo vinfo_template, *vinfo = NULL;
- EGLint val, num_vinfo;
- Window root;
- XSetWindowAttributes attrs;
- unsigned long mask;
- EGLint x = 0, y = 0;
-
- if (!eglGetConfigAttrib(eman->dpy, eman->conf,
- EGL_NATIVE_VISUAL_ID, &val)) {
- printf("eglGetConfigAttrib() failed\n");
- return EGL_FALSE;
- }
- if (val) {
- vinfo_template.visualid = (VisualID) val;
- vinfo = XGetVisualInfo(eman->xdpy, VisualIDMask, &vinfo_template, &num_vinfo);
- }
- /* try harder if window surface is not needed */
- if (!vinfo && !need_surface &&
- eglGetConfigAttrib(eman->dpy, eman->conf, EGL_BUFFER_SIZE, &val)) {
- if (val == 32)
- val = 24;
- vinfo_template.depth = val;
- vinfo = XGetVisualInfo(eman->xdpy, VisualDepthMask, &vinfo_template, &num_vinfo);
- }
-
- if (!vinfo) {
- printf("XGetVisualInfo() failed\n");
- return EGL_FALSE;
- }
-
- root = DefaultRootWindow(eman->xdpy);
- if (fullscreen) {
- x = y = 0;
- w = DisplayWidth(eman->xdpy, DefaultScreen(eman->xdpy));
- h = DisplayHeight(eman->xdpy, DefaultScreen(eman->xdpy));
- }
-
- /* window attributes */
- attrs.background_pixel = 0;
- attrs.border_pixel = 0;
- attrs.colormap = XCreateColormap(eman->xdpy, root, vinfo->visual, AllocNone);
- attrs.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
- attrs.override_redirect = fullscreen;
- mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
-
- eman->xwin = XCreateWindow(eman->xdpy, root, x, y, w, h,
- 0, vinfo->depth, InputOutput,
- vinfo->visual, mask, &attrs);
- XFree(vinfo);
-
- /* set hints and properties */
- {
- XSizeHints sizehints;
- sizehints.x = x;
- sizehints.y = y;
- sizehints.width = w;
- sizehints.height = h;
- sizehints.flags = USSize | USPosition;
- XSetNormalHints(eman->xdpy, eman->xwin, &sizehints);
- XSetStandardProperties(eman->xdpy, eman->xwin, name, name,
- None, (char **)NULL, 0, &sizehints);
- }
-
- if (need_surface) {
- eman->win = eglCreateWindowSurface(eman->dpy, eman->conf,
- eman->xwin, attrib_list);
- if (eman->win == EGL_NO_SURFACE) {
- printf("eglCreateWindowSurface() failed\n");
- XDestroyWindow(eman->xdpy, eman->xwin);
- eman->xwin = None;
- return EGL_FALSE;
- }
- }
-
- eman->gc = XCreateGC(eman->xdpy, eman->xwin, 0, NULL);
-
- XMapWindow(eman->xdpy, eman->xwin);
-
- return EGL_TRUE;
-}
-
-static EGLBoolean
-egl_manager_create_pixmap(struct egl_manager *eman, EGLNativeWindowType xwin,
- EGLBoolean need_surface, const EGLint *attrib_list)
-{
- XWindowAttributes attrs;
-
- if (!XGetWindowAttributes(eman->xdpy, xwin, &attrs)) {
- printf("XGetWindowAttributes() failed\n");
- return EGL_FALSE;
- }
-
- eman->xpix = XCreatePixmap(eman->xdpy, xwin,
- attrs.width, attrs.height, attrs.depth);
-
- if (need_surface) {
- eman->pix = eglCreatePixmapSurface(eman->dpy, eman->conf,
- eman->xpix, attrib_list);
- if (eman->pix == EGL_NO_SURFACE) {
- printf("eglCreatePixmapSurface() failed\n");
- XFreePixmap(eman->xdpy, eman->xpix);
- eman->xpix = None;
- return EGL_FALSE;
- }
- }
-
- return EGL_TRUE;
-}
-
-static EGLBoolean
-egl_manager_create_pbuffer(struct egl_manager *eman, const EGLint *attrib_list)
-{
- eman->pbuf = eglCreatePbufferSurface(eman->dpy, eman->conf, attrib_list);
- if (eman->pbuf == EGL_NO_SURFACE) {
- printf("eglCreatePbufferSurface() failed\n");
- return EGL_FALSE;
- }
-
- return EGL_TRUE;
-}
-
-static void
-egl_manager_destroy(struct egl_manager *eman)
-{
- eglMakeCurrent(eman->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
- eglTerminate(eman->dpy);
-
- if (eman->xwin != None)
- XDestroyWindow(eman->xdpy, eman->xwin);
- if (eman->xpix != None)
- XFreePixmap(eman->xdpy, eman->xpix);
-
- XFreeGC(eman->xdpy, eman->gc);
-
- free(eman);
-}
-
-enum {
- GEARS_WINDOW,
- GEARS_PIXMAP,
- GEARS_PIXMAP_TEXTURE,
- GEARS_PBUFFER,
- GEARS_PBUFFER_TEXTURE,
- GEARS_RENDERBUFFER
-};
-
-static void
-texture_gears(struct egl_manager *eman, int surface_type)
-{
- static const GLint verts[12] =
- { -5, -6, -10, 5, -6, -10, -5, 4, 10, 5, 4, 10 };
- static const GLint tex_coords[8] = { 0, 0, 1, 0, 0, 1, 1, 1 };
-
- eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
-
- glClearColor(0, 0, 0, 0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glEnable(GL_TEXTURE_2D);
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_REPEAT);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-
- glEnableClientState(GL_VERTEX_ARRAY);
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
- glVertexPointer(3, GL_INT, 0, verts);
- glTexCoordPointer(2, GL_INT, 0, tex_coords);
-
- if (surface_type == GEARS_PBUFFER_TEXTURE)
- eglBindTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
-
- glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-
- glDisableClientState(GL_VERTEX_ARRAY);
- glDisableClientState(GL_COLOR_ARRAY);
- glDisable(GL_TEXTURE_2D);
-
- if (surface_type == GEARS_PBUFFER_TEXTURE)
- eglReleaseTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
-
- eglSwapBuffers(eman->dpy, eman->win);
-}
-
-static void
-copy_gears(struct egl_manager *eman,
- EGLint tile_w, EGLint tile_h, EGLint w, EGLint h)
-{
- int x, y;
-
- eglWaitClient();
-
- for (x = 0; x < w; x += tile_w) {
- for (y = 0; y < h; y += tile_h) {
-
- XCopyArea(eman->xdpy, eman->xpix, eman->xwin, eman->gc,
- 0, 0, tile_w, tile_h, x, y);
- }
- }
-}
-
-static void
-event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
-{
- int window_w = w, window_h = h;
-
- if (surface_type == EGL_PBUFFER_BIT)
- printf("there will be no screen update if "
- "eglCopyBuffers() is not implemented\n");
-
- while (1) {
- while (XPending(eman->xdpy) > 0) {
- XEvent event;
- XNextEvent(eman->xdpy, &event);
- switch (event.type) {
- case Expose:
- /* we'll redraw below */
- break;
- case ConfigureNotify:
- window_w = event.xconfigure.width;
- window_h = event.xconfigure.height;
- if (surface_type == EGL_WINDOW_BIT)
- reshape(window_w, window_h);
- 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;
- }
- }
- }
- }
- }
-
- {
- static int frames = 0;
- static double tRot0 = -1.0, tRate0 = -1.0;
- double dt, t = current_time();
- if (tRot0 < 0.0)
- tRot0 = t;
- dt = t - tRot0;
- tRot0 = t;
-
- /* advance rotation for next frame */
- angle += 70.0 * dt; /* 70 degrees per second */
- if (angle > 3600.0)
- angle -= 3600.0;
-
- switch (surface_type) {
- case GEARS_WINDOW:
- draw();
- eglSwapBuffers(eman->dpy, eman->win);
- break;
-
- case GEARS_PBUFFER:
- draw();
- if (!eglCopyBuffers(eman->dpy, eman->pbuf, eman->xpix))
- break;
- copy_gears(eman, w, h, window_w, window_h);
- break;
-
- case GEARS_PBUFFER_TEXTURE:
- eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
- draw();
- texture_gears(eman, surface_type);
- break;
-
- case GEARS_PIXMAP:
- draw();
- copy_gears(eman, w, h, window_w, window_h);
- break;
-
- case GEARS_PIXMAP_TEXTURE:
- eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
- draw();
- texture_gears(eman, surface_type);
- break;
-
- case GEARS_RENDERBUFFER:
- glBindFramebuffer(GL_FRAMEBUFFER_EXT, eman->fbo);
- draw();
- glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
- texture_gears(eman, surface_type);
- break;
- }
-
- frames++;
-
- if (tRate0 < 0.0)
- tRate0 = t;
- if (t - tRate0 >= 5.0) {
- GLfloat seconds = t - tRate0;
- GLfloat fps = frames / seconds;
- printf("%d frames in %3.1f seconds = %6.3f FPS\n", frames, seconds,
- fps);
- tRate0 = t;
- frames = 0;
- }
- }
- }
-}
-
-
-static void
-usage(void)
-{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -fullscreen run in fullscreen mode\n");
- printf(" -info display OpenGL renderer info\n");
- printf(" -pixmap use pixmap surface\n");
- printf(" -pixmap-texture use pixmap surface and texture using EGLImage\n");
- printf(" -pbuffer use pbuffer surface and eglCopyBuffers\n");
- printf(" -pbuffer-texture use pbuffer surface and eglBindTexImage\n");
- printf(" -renderbuffer renderbuffer as EGLImage and bind as texture from\n");
-}
-
-static const char *names[] = {
- "window",
- "pixmap",
- "pixmap_texture",
- "pbuffer",
- "pbuffer_texture",
- "renderbuffer"
-};
-
-int
-main(int argc, char *argv[])
-{
- const int winWidth = 300, winHeight = 300;
- Display *x_dpy;
- char *dpyName = NULL;
- struct egl_manager *eman;
- EGLint attribs[] = {
- EGL_SURFACE_TYPE, EGL_WINDOW_BIT, /* may be changed later */
- EGL_RED_SIZE, 1,
- EGL_GREEN_SIZE, 1,
- EGL_BLUE_SIZE, 1,
- EGL_DEPTH_SIZE, 1,
- EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
- EGL_NONE
- };
- char win_title[] = "xeglgears (window/pixmap/pbuffer)";
- EGLint surface_type = GEARS_WINDOW;
- GLboolean printInfo = GL_FALSE;
- GLboolean fullscreen = GL_FALSE;
- EGLBoolean ret;
- GLuint texture, color_rb, depth_rb;
- int i;
-
- 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 if (strcmp(argv[i], "-fullscreen") == 0) {
- fullscreen = GL_TRUE;
- }
- else if (strcmp(argv[i], "-pixmap") == 0) {
- surface_type = GEARS_PIXMAP;
- attribs[1] = EGL_PIXMAP_BIT;
- }
- else if (strcmp(argv[i], "-pixmap-texture") == 0) {
- surface_type = GEARS_PIXMAP_TEXTURE;
- attribs[1] = EGL_PIXMAP_BIT;
- }
- else if (strcmp(argv[i], "-pbuffer") == 0) {
- surface_type = GEARS_PBUFFER;
- attribs[1] = EGL_PBUFFER_BIT;
- }
- else if (strcmp(argv[i], "-pbuffer-texture") == 0) {
- surface_type = GEARS_PBUFFER_TEXTURE;
- attribs[1] = EGL_PBUFFER_BIT;
- }
- else if (strcmp(argv[i], "-renderbuffer") == 0) {
- surface_type = GEARS_RENDERBUFFER;
- }
- 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;
- }
-
- eglBindAPI(EGL_OPENGL_API);
-
- eman = egl_manager_new(x_dpy, attribs, printInfo);
- if (!eman) {
- XCloseDisplay(x_dpy);
- return -1;
- }
-
- snprintf(win_title, sizeof(win_title),
- "xeglgears (%s)", names[surface_type]);
-
- ret = egl_manager_create_window(eman, win_title, winWidth, winHeight,
- EGL_TRUE, fullscreen, NULL);
- if (!ret)
- return -1;
-
- /* create surface(s) */
- switch (surface_type) {
- case GEARS_WINDOW:
- if (ret)
- ret = eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
- break;
- case GEARS_PIXMAP:
- case GEARS_PIXMAP_TEXTURE:
- ret = egl_manager_create_pixmap(eman, eman->xwin, EGL_TRUE, NULL);
- if (surface_type == GEARS_PIXMAP_TEXTURE)
- eman->image = eglCreateImageKHR (eman->dpy, eman->ctx,
- EGL_NATIVE_PIXMAP_KHR,
- (EGLClientBuffer) eman->xpix, NULL);
- if (ret)
- ret = eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
- break;
- case GEARS_PBUFFER:
- case GEARS_PBUFFER_TEXTURE:
- {
- EGLint pbuf_attribs[] = {
- EGL_WIDTH, winWidth,
- EGL_HEIGHT, winHeight,
- EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
- EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
- EGL_NONE
- };
- ret = (egl_manager_create_pixmap(eman, eman->xwin,
- EGL_TRUE, NULL) &&
- egl_manager_create_pbuffer(eman, pbuf_attribs));
- if (ret)
- ret = eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
- }
- break;
-
-
- case GEARS_RENDERBUFFER:
- ret = eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
- if (ret == EGL_FALSE)
- printf("failed to make context current\n");
-
- glGenFramebuffers(1, &eman->fbo);
- glBindFramebuffer(GL_FRAMEBUFFER_EXT, eman->fbo);
-
- glGenRenderbuffers(1, &color_rb);
- glBindRenderbuffer(GL_RENDERBUFFER_EXT, color_rb);
- glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_RGBA, winWidth, winHeight);
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_COLOR_ATTACHMENT0_EXT,
- GL_RENDERBUFFER_EXT,
- color_rb);
-
- eman->image = eglCreateImageKHR(eman->dpy, eman->ctx,
- EGL_GL_RENDERBUFFER_KHR,
- (EGLClientBuffer) color_rb, NULL);
-
- glGenRenderbuffers(1, &depth_rb);
- glBindRenderbuffer(GL_RENDERBUFFER_EXT, depth_rb);
- glRenderbufferStorage(GL_RENDERBUFFER_EXT,
- GL_DEPTH_COMPONENT, winWidth, winHeight);
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_DEPTH_ATTACHMENT_EXT,
- GL_RENDERBUFFER_EXT,
- depth_rb);
-
- if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE) {
- printf("framebuffer not complete\n");
- exit(1);
- }
-
- break;
-
- default:
- ret = EGL_FALSE;
- break;
- }
-
- switch (surface_type) {
- case GEARS_PIXMAP_TEXTURE:
- case GEARS_RENDERBUFFER:
- glGenTextures(1, &texture);
- glBindTexture(GL_TEXTURE_2D, texture);
- glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, eman->image);
- break;
- case GEARS_PBUFFER_TEXTURE:
- glGenTextures(1, &texture);
- glBindTexture(GL_TEXTURE_2D, texture);
- break;
- }
-
- if (!ret) {
- egl_manager_destroy(eman);
- XCloseDisplay(x_dpy);
- 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));
- }
-
- 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(eman, surface_type, winWidth, winHeight);
-
- glDeleteLists(gear1, 1);
- glDeleteLists(gear2, 1);
- glDeleteLists(gear3, 1);
-
- egl_manager_destroy(eman);
- XCloseDisplay(x_dpy);
-
- return 0;
-}
projects / mesa.git / blobdiff