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-rw-r--r--progs/egl/opengles1/drawtex.c326
1 files changed, 58 insertions, 268 deletions
diff --git a/progs/egl/opengles1/drawtex.c b/progs/egl/opengles1/drawtex.c
index ca0615e267b..e9ac0153408 100644
--- a/progs/egl/opengles1/drawtex.c
+++ b/progs/egl/opengles1/drawtex.c
@@ -10,22 +10,20 @@
#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>
+#include "eglut.h"
static GLfloat view_posx = 10.0, view_posy = 20.0;
static GLfloat width = 200, height = 200;
+static GLboolean animate = GL_FALSE;
+static int win;
static void
@@ -137,291 +135,83 @@ init(void)
}
-/*
- * 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)
+idle(void)
{
- 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);
+ if (animate) {
+ view_posx += 1.0;
+ view_posy += 2.0;
+ eglutPostRedisplay();
}
-
- XFree(visInfo);
-
- *winRet = win;
- *ctxRet = ctx;
}
-
static void
-event_loop(Display *dpy, Window win,
- EGLDisplay egl_dpy, EGLSurface egl_surf)
+key(unsigned char key)
{
- 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);
- }
+ switch (key) {
+ case ' ':
+ animate = !animate;
+ break;
+ case 'w':
+ width -= 1.0f;
+ break;
+ case 'W':
+ width += 1.0f;
+ break;
+ case 'h':
+ height -= 1.0f;
+ break;
+ case 'H':
+ height += 1.0f;
+ break;
+ case 27:
+ eglutDestroyWindow(win);
+ exit(0);
+ break;
+ default:
+ break;
}
}
-
static void
-usage(void)
+special_key(int key)
{
- printf("Usage:\n");
- printf(" -display <displayname> set the display to run on\n");
- printf(" -info display OpenGL renderer info\n");
+ switch (key) {
+ case EGLUT_KEY_LEFT:
+ view_posx -= 1.0;
+ break;
+ case EGLUT_KEY_RIGHT:
+ view_posx += 1.0;
+ break;
+ case EGLUT_KEY_UP:
+ view_posy += 1.0;
+ break;
+ case EGLUT_KEY_DOWN:
+ view_posy -= 1.0;
+ break;
+ default:
+ break;
+ }
}
-
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;
- }
+ eglutInitWindowSize(400, 300);
+ eglutInitAPIMask(EGLUT_OPENGL_ES1_BIT);
+ eglutInit(argc, argv);
- 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);
+ win = eglutCreateWindow("drawtex");
- 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));
- }
+ eglutIdleFunc(idle);
+ eglutReshapeFunc(reshape);
+ eglutDisplayFunc(draw);
+ eglutKeyboardFunc(key);
+ eglutSpecialFunc(special_key);
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;
}
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