IABSD.fr/xenocara/dist/libepoxy/src/dispatch_egl.c

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• Author : jsg
  Date : 2015-08-20 02:49:44
  Hash : 2f1d1574
  Message : Import libepoxy 1.3.1

• dist/libepoxy/src/dispatch_egl.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.
   */
  
  #include <assert.h>
  #include <string.h>
  #include <stdio.h>
  
  #include "dispatch_common.h"
  
  int
  epoxy_conservative_egl_version(void)
  {
      EGLDisplay dpy = eglGetCurrentDisplay();
  
      if (!dpy)
          return 14;
  
      return epoxy_egl_version(dpy);
  }
  
  PUBLIC int
  epoxy_egl_version(EGLDisplay dpy)
  {
      int major, minor;
      const char *version_string;
      int ret;
  
      version_string = eglQueryString(dpy, EGL_VERSION);
      ret = sscanf(version_string, "%d.%d", &major, &minor);
      assert(ret == 2);
      return major * 10 + minor;
  }
  
  bool
  epoxy_conservative_has_egl_extension(const char *ext)
  {
      EGLDisplay dpy = eglGetCurrentDisplay();
  
      if (!dpy)
          return true;
  
      return epoxy_has_egl_extension(dpy, ext);
  }
  
  PUBLIC bool
  epoxy_has_egl_extension(EGLDisplay dpy, const char *ext)
  {
      return epoxy_extension_in_string(eglQueryString(dpy, EGL_EXTENSIONS), ext);
  }