xenocara/dist/libepoxy/test/egl_epoxy_api.c

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/*
* Copyright 2018 Emmanuele Bassi
*
* 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 (including the next
* paragraph) 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
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
/**
* @file epoxy_api.c
*
* Tests the Epoxy API using EGL.
*/
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#ifdef __sun
#define __EXTENSIONS__
#else
#define _GNU_SOURCE
#endif
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <err.h>
#include "epoxy/gl.h"
#include "epoxy/egl.h"
#include "egl_common.h"
static bool
make_egl_current_and_test(EGLDisplay *dpy, EGLContext ctx)
{
const char *string;
GLuint shader;
bool pass = true;
eglMakeCurrent(dpy, NULL, NULL, ctx);
if (!epoxy_is_desktop_gl()) {
fputs("Claimed to be desktop\n", stderr);
pass = false;
}
if (epoxy_gl_version() < 20) {
fprintf(stderr, "Claimed to be GL version %d\n",
epoxy_gl_version());
pass = false;
}
if (epoxy_glsl_version() < 100) {
fprintf(stderr, "Claimed to have GLSL version %d\n",
epoxy_glsl_version());
pass = false;
}
string = (const char *)glGetString(GL_VERSION);
printf("GL version: %s - Epoxy: %d\n", string, epoxy_gl_version());
string = (const char *)glGetString(GL_SHADING_LANGUAGE_VERSION);
printf("GLSL version: %s - Epoxy: %d\n", string, epoxy_glsl_version());
shader = glCreateShader(GL_FRAGMENT_SHADER);
pass = glIsShader(shader);
return pass;
}
static void
init_egl(EGLDisplay *dpy, EGLContext *out_ctx)
{
static const EGLint config_attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
static const EGLint context_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
EGLContext ctx;
EGLConfig cfg;
EGLint count;
if (!epoxy_has_egl_extension(dpy, "EGL_KHR_surfaceless_context"))
errx(77, "Test requires EGL_KHR_surfaceless_context");
if (!eglBindAPI(EGL_OPENGL_API))
errx(77, "Couldn't initialize EGL with desktop GL\n");
if (!eglChooseConfig(dpy, config_attribs, &cfg, 1, &count))
errx(77, "Couldn't get an EGLConfig\n");
ctx = eglCreateContext(dpy, cfg, NULL, context_attribs);
if (!ctx)
errx(77, "Couldn't create a GL context\n");
*out_ctx = ctx;
}
int
main(int argc, char **argv)
{
bool pass = true;
EGLContext egl_ctx;
EGLDisplay *dpy = get_egl_display_or_skip();
const char *extensions = eglQueryString(dpy, EGL_EXTENSIONS);
char *first_space;
char *an_extension;
/* We don't have any extensions guaranteed by the ABI, so for the
* touch test we just check if the first one is reported to be there.
*/
first_space = strstr(extensions, " ");
if (first_space) {
an_extension = strndup(extensions, first_space - extensions);
} else {
an_extension = strdup(extensions);
}
if (!epoxy_extension_in_string(extensions, an_extension))
errx(1, "Implementation reported absence of %s", an_extension);
free(an_extension);
init_egl(dpy, &egl_ctx);
pass = make_egl_current_and_test(dpy, egl_ctx);
return pass != true;
}