121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* Stolen from eglgears
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*
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* Creates a surface and show that on the first screen
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*/
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#define EGL_EGLEXT_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 <unistd.h>
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#include <GL/gl.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#define MAX_CONFIGS 10
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#define MAX_MODES 100
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int
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main(int argc, char *argv[])
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{
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int maj, min;
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EGLSurface screen_surf;
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EGLConfig configs[MAX_CONFIGS];
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EGLint numConfigs, i;
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EGLBoolean b;
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EGLDisplay d;
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EGLint screenAttribs[10];
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EGLModeMESA mode[MAX_MODES];
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EGLScreenMESA screen;
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EGLint count;
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EGLint chosenMode = 0;
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EGLint width = 0, height = 0;
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d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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assert(d);
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if (!eglInitialize(d, &maj, &min)) {
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printf("eglscreen: eglInitialize failed\n");
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exit(1);
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}
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printf("eglscreen: EGL version = %d.%d\n", maj, min);
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printf("eglscreen: EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
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/* XXX use ChooseConfig */
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eglGetConfigs(d, configs, MAX_CONFIGS, &numConfigs);
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eglGetScreensMESA(d, &screen, 1, &count);
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if (!eglGetModesMESA(d, screen, mode, MAX_MODES, &count) || count == 0) {
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printf("eglscreen: eglGetModesMESA failed!\n");
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return 0;
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}
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/* Print list of modes, and find the one to use */
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printf("eglscreen: Found %d modes:\n", count);
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for (i = 0; i < count; i++) {
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EGLint w, h;
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eglGetModeAttribMESA(d, mode[i], EGL_WIDTH, &w);
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eglGetModeAttribMESA(d, mode[i], EGL_HEIGHT, &h);
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printf("%3d: %d x %d\n", i, w, h);
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if (w > width && h > height) {
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width = w;
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height = h;
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chosenMode = i;
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}
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}
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printf("eglscreen: Using screen mode/size %d: %d x %d\n", chosenMode, width, height);
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/* build up screenAttribs array */
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i = 0;
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screenAttribs[i++] = EGL_WIDTH;
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screenAttribs[i++] = width;
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screenAttribs[i++] = EGL_HEIGHT;
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screenAttribs[i++] = height;
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screenAttribs[i++] = EGL_NONE;
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screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
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if (screen_surf == EGL_NO_SURFACE) {
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printf("eglscreen: Failed to create screen surface\n");
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return 0;
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}
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b = eglShowScreenSurfaceMESA(d, screen, screen_surf, mode[chosenMode]);
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if (!b) {
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printf("eglscreen: Show surface failed\n");
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return 0;
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}
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usleep(5000000);
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eglDestroySurface(d, screen_surf);
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eglTerminate(d);
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return 0;
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}
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