* 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>
+#include "eglut.h"
+
#define FLOAT_TO_FIXED(X) ((X) * 65535.0)
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)
+special_key(int special)
{
- 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);
- }
+ switch (special) {
+ case EGLUT_KEY_LEFT:
+ view_roty += 5.0;
+ break;
+ case EGLUT_KEY_RIGHT:
+ view_roty -= 5.0;
+ break;
+ case EGLUT_KEY_UP:
+ view_rotx += 5.0;
+ break;
+ case EGLUT_KEY_DOWN:
+ view_rotx -= 5.0;
+ break;
+ default:
+ break;
}
}
-
-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;
- }
- }
+ eglutInitWindowSize(300, 300);
+ eglutInitAPIMask(EGLUT_OPENGL_ES1_BIT);
+ eglutInit(argc, argv);
- 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);
+ eglutCreateWindow("tri");
- make_x_window(x_dpy, egl_dpy,
- "OpenGL ES 1.x tri", 0, 0, winWidth, winHeight,
- &win, &egl_ctx, &egl_surf);
+ eglutReshapeFunc(reshape);
+ eglutDisplayFunc(draw);
+ eglutSpecialFunc(special_key);
- 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);
+ eglutMainLoop();
return 0;
}
projects / mesa.git / blobdiff