xbmc/utils/GLUtils.h

   1 /*
   2  *  Copyright (C) 2005-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #pragma once
  10
  11 // GL Error checking macro
  12 // this function is useful for tracking down GL errors, which otherwise
  13 // just result in undefined behavior and can be difficult to track down.
  14 //
  15 // Just call it 'VerifyGLState()' after a sequence of GL calls
  16 //
  17 // if GL_DEBUGGING and HAS_GL are defined, the function checks
  18 // for GL errors and prints the current state of the various matrices;
  19 // if not it's just an empty inline stub, and thus won't affect performance
  20 // and will be optimized out.
  21
  22 #include "system_gl.h"
  23
  24 namespace KODI
  25 {
  26 namespace UTILS
  27 {
  28 namespace GL
  29 {
  30 void GlErrorCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void* userParam);
  31
  32 int glFormatElementByteCount(GLenum format);
  33
  34 enum class ColorChannel
  35 {
  36   A,
  37   R,
  38   G,
  39   B,
  40 };
  41
  42 uint8_t GetChannelFromARGB(const ColorChannel colorChannel, const uint32_t argb);
  43 }
  44 }
  45 }
  46
  47 void _VerifyGLState(const char* szfile, const char* szfunction, int lineno);
  48 #if defined(GL_DEBUGGING) && (defined(HAS_GL) || defined(HAS_GLES))
  49 #define VerifyGLState() _VerifyGLState(__FILE__, __FUNCTION__, __LINE__)
  50 #else
  51 #define VerifyGLState()
  52 #endif
  53
  54 void LogGraphicsInfo();