7f231cab2b
Move progs/es1/xegl -> progs/egl/opengles1, progs/es1/screen -> progs/egl/opengles1/screen, progs/es2/xegl -> progs/egl/opengles2.
290 lines
6.6 KiB
C
290 lines
6.6 KiB
C
/*
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* Copyright (C) 2008 Tunsgten Graphics,Inc. All Rights Reserved.
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*/
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/*
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* List OpenGL ES extensions.
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* Print ES 1 or ES 2 extensions depending on which library we're
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* linked with: libGLESv1_CM.so vs libGLESv2.so
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*/
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#define GL_GLEXT_PROTOTYPES
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#include <assert.h>
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#include <math.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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#include <EGL/egl.h>
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/*
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* Print a list of extensions, with word-wrapping.
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*/
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static void
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print_extension_list(const char *ext)
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{
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const char *indentString = " ";
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const int indent = 4;
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const int max = 79;
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int width, i, j;
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if (!ext || !ext[0])
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return;
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width = indent;
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printf(indentString);
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i = j = 0;
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while (1) {
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if (ext[j] == ' ' || ext[j] == 0) {
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/* found end of an extension name */
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const int len = j - i;
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if (width + len > max) {
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/* start a new line */
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printf("\n");
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width = indent;
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printf(indentString);
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}
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/* print the extension name between ext[i] and ext[j] */
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while (i < j) {
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printf("%c", ext[i]);
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i++;
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}
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/* either we're all done, or we'll continue with next extension */
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width += len + 1;
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if (ext[j] == 0) {
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break;
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}
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else {
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i++;
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j++;
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if (ext[j] == 0)
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break;
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printf(", ");
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width += 2;
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}
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}
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j++;
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}
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printf("\n");
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}
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static void
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info(EGLDisplay egl_dpy)
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{
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const char *s;
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s = eglQueryString(egl_dpy, EGL_VERSION);
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printf("EGL_VERSION = %s\n", s);
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s = eglQueryString(egl_dpy, EGL_VENDOR);
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printf("EGL_VENDOR = %s\n", s);
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s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
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printf("EGL_EXTENSIONS = %s\n", s);
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s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
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printf("EGL_CLIENT_APIS = %s\n", s);
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printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
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printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
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printf("GL_EXTENSIONS:\n");
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print_extension_list((char *) glGetString(GL_EXTENSIONS));
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}
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/*
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* Create an RGB, double-buffered X window.
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* Return the window and context handles.
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*/
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static void
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make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
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const char *name,
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int x, int y, int width, int height, int es_ver,
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Window *winRet,
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EGLContext *ctxRet,
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EGLSurface *surfRet)
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{
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EGLint attribs[] = {
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EGL_RENDERABLE_TYPE, 0x0,
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EGL_RED_SIZE, 1,
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EGL_GREEN_SIZE, 1,
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EGL_BLUE_SIZE, 1,
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EGL_NONE
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};
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EGLint ctx_attribs[] = {
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EGL_CONTEXT_CLIENT_VERSION, 0,
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EGL_NONE
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};
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int scrnum;
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XSetWindowAttributes attr;
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unsigned long mask;
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Window root;
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Window win;
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XVisualInfo *visInfo, visTemplate;
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int num_visuals;
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EGLContext ctx;
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EGLConfig config;
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EGLint num_configs;
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EGLint vid;
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scrnum = DefaultScreen( x_dpy );
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root = RootWindow( x_dpy, scrnum );
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if (es_ver == 1)
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attribs[1] = EGL_OPENGL_ES_BIT;
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else
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attribs[1] = EGL_OPENGL_ES2_BIT;
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ctx_attribs[1] = es_ver;
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if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
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printf("Error: couldn't get an EGL visual config\n");
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exit(1);
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}
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assert(config);
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assert(num_configs > 0);
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if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
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printf("Error: eglGetConfigAttrib() failed\n");
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exit(1);
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}
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/* The X window visual must match the EGL config */
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visTemplate.visualid = vid;
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visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
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if (!visInfo) {
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printf("Error: couldn't get X visual\n");
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exit(1);
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}
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/* window attributes */
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attr.background_pixel = 0;
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attr.border_pixel = 0;
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attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
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attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
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mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
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win = XCreateWindow( x_dpy, root, 0, 0, width, height,
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0, visInfo->depth, InputOutput,
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visInfo->visual, mask, &attr );
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/* set hints and properties */
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{
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XSizeHints sizehints;
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sizehints.x = x;
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sizehints.y = y;
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sizehints.width = width;
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sizehints.height = height;
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sizehints.flags = USSize | USPosition;
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XSetNormalHints(x_dpy, win, &sizehints);
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XSetStandardProperties(x_dpy, win, name, name,
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None, (char **)NULL, 0, &sizehints);
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}
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eglBindAPI(EGL_OPENGL_ES_API);
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ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
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if (!ctx) {
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printf("Error: eglCreateContext failed\n");
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exit(1);
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}
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*surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
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if (!*surfRet) {
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printf("Error: eglCreateWindowSurface failed\n");
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exit(1);
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}
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XFree(visInfo);
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*winRet = win;
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*ctxRet = ctx;
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}
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static void
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usage(void)
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{
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printf("Usage:\n");
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printf(" -display <displayname> set the display to run on\n");
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}
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int
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main(int argc, char *argv[])
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{
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const int winWidth = 400, winHeight = 300;
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Display *x_dpy;
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Window win;
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EGLSurface egl_surf;
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EGLContext egl_ctx;
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EGLDisplay egl_dpy;
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char *dpyName = NULL;
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EGLint egl_major, egl_minor, es_ver;
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int i;
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for (i = 1; i < argc; i++) {
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if (strcmp(argv[i], "-display") == 0) {
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dpyName = argv[i+1];
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i++;
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}
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else {
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usage();
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return -1;
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}
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}
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x_dpy = XOpenDisplay(dpyName);
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if (!x_dpy) {
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printf("Error: couldn't open display %s\n",
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dpyName ? dpyName : getenv("DISPLAY"));
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return -1;
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}
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egl_dpy = eglGetDisplay(x_dpy);
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if (!egl_dpy) {
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printf("Error: eglGetDisplay() failed\n");
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return -1;
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}
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if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
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printf("Error: eglInitialize() failed\n");
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return -1;
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}
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es_ver = 1;
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/* decide the version from the executable's name */
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if (argc > 0 && argv[0] && strstr(argv[0], "es2"))
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es_ver = 2;
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make_x_window(x_dpy, egl_dpy,
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"ES info", 0, 0, winWidth, winHeight, es_ver,
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&win, &egl_ctx, &egl_surf);
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/*XMapWindow(x_dpy, win);*/
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if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
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printf("Error: eglMakeCurrent() failed\n");
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return -1;
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}
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info(egl_dpy);
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eglDestroyContext(egl_dpy, egl_ctx);
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eglDestroySurface(egl_dpy, egl_surf);
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eglTerminate(egl_dpy);
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XDestroyWindow(x_dpy, win);
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XCloseDisplay(x_dpy);
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return 0;
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}
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