IABSD.fr/xenocara/dist/libepoxy/test/glx_gles2.c

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• Author : jsg
  Date : 2015-04-15 07:32:24
  Hash : 1316fa2e
  Message : Import libepoxy 1.2

• dist/libepoxy/test/glx_gles2.c

• /*
   * Copyright © 2013 Intel Corporation
   *
   * 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 glx_gles2.c
   *
   * Catches a bug where a GLES2 context using
   * GLX_EXT_create_context_es2_profile would try to find the symbols in
   * libGLESv2.so.2 instead of libGL.so.1.
   */
  
  #include <stdio.h>
  #include <assert.h>
  #include <err.h>
  #include "epoxy/gl.h"
  #include "epoxy/glx.h"
  #include <X11/Xlib.h>
  
  #include "glx_common.h"
  
  static Display *dpy;
  
  GLuint
  override_GLES2_glCreateShader(GLenum target);
  
  GLuint
  override_GLES2_glCreateShader(GLenum target)
  {
      return 0;
  }
  
  void
  override_GLES2_glGenQueries(GLsizei n, GLuint *ids);
  
  void
  override_GLES2_glGenQueries(GLsizei n, GLuint *ids)
  {
      int i;
      for (i = 0; i < n; i++)
          ids[i] = 0;
  }
  
  int
  main(int argc, char **argv)
  {
      bool pass = true;
      XVisualInfo *vis;
      Window win;
      GLXContext ctx;
      GLXFBConfig config;
      int context_attribs[] = {
          GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_ES2_PROFILE_BIT_EXT,
          GLX_CONTEXT_MAJOR_VERSION_ARB, 2,
          GLX_CONTEXT_MINOR_VERSION_ARB, 0,
          0
      };
      GLuint shader;
  
      dpy = get_display_or_skip();
  
      if (!epoxy_has_glx_extension(dpy, 0, "GLX_EXT_create_context_es2_profile"))
          errx(77, "Test requires GLX_EXT_create_context_es2_profile");
  
      vis = get_glx_visual(dpy);
      config = get_fbconfig_for_visinfo(dpy, vis);
      win = get_glx_window(dpy, vis, false);
  
      ctx = glXCreateContextAttribsARB(dpy, config, NULL, true,
                                       context_attribs);
  
      glXMakeCurrent(dpy, win, ctx);
  
      if (epoxy_is_desktop_gl()) {
          errx(1, "GLES2 context creation made a desktop context\n");
      }
  
      if (epoxy_gl_version() < 20) {
          errx(1, "GLES2 context creation made a version %f context\n",
               epoxy_gl_version() / 10.0f);
      }
  
      /* Test using an entrypoint that's in GLES2, but not the desktop GL ABI. */
      shader = glCreateShader(GL_FRAGMENT_SHADER);
      if (shader == 0)
          errx(1, "glCreateShader() failed\n");
      glDeleteShader(shader);
  
      if (epoxy_gl_version() >= 30) {
          GLuint q = 0;
  
          glGenQueries(1, &q);
          if (!q)
              errx(1, "glGenQueries() failed\n");
          glDeleteQueries(1, &q);
      }
  
      return pass != true;
  }