source/modules/dgl/OpenGL-include.hpp

   1 /*
   2  * DISTRHO Plugin Framework (DPF)
   3  * Copyright (C) 2012-2021 Filipe Coelho <falktx@falktx.com>
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any purpose with
   6  * or without fee is hereby granted, provided that the above copyright notice and this
   7  * permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
  10  * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
  11  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
  12  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
  13  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef DGL_OPENGL_INCLUDE_HPP_INCLUDED
  18 #define DGL_OPENGL_INCLUDE_HPP_INCLUDED
  19
  20 #include "../distrho/src/DistrhoDefines.h"
  21
  22 // --------------------------------------------------------------------------------------------------------------------
  23 // Fix OpenGL includes for Windows, based on glfw code (part 1)
  24
  25 #undef DGL_CALLBACK_DEFINED
  26 #undef DGL_WINGDIAPI_DEFINED
  27
  28 #ifdef DISTRHO_OS_WINDOWS
  29
  30 #ifndef APIENTRY
  31 # define APIENTRY __stdcall
  32 #endif // APIENTRY
  33
  34 /* We need WINGDIAPI defined */
  35 #ifndef WINGDIAPI
  36 # if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__POCC__)
  37 #  define WINGDIAPI __declspec(dllimport)
  38 # elif defined(__LCC__)
  39 #  define WINGDIAPI __stdcall
  40 # else
  41 #  define WINGDIAPI extern
  42 # endif
  43 # define DGL_WINGDIAPI_DEFINED
  44 #endif // WINGDIAPI
  45
  46 /* Some <GL/glu.h> files also need CALLBACK defined */
  47 #ifndef CALLBACK
  48 # if defined(_MSC_VER)
  49 #  if (defined(_M_MRX000) || defined(_M_IX86) || defined(_M_ALPHA) || defined(_M_PPC)) && !defined(MIDL_PASS)
  50 #   define CALLBACK __stdcall
  51 #  else
  52 #   define CALLBACK
  53 #  endif
  54 # else
  55 #  define CALLBACK __stdcall
  56 # endif
  57 # define DGL_CALLBACK_DEFINED
  58 #endif // CALLBACK
  59
  60 #endif // DISTRHO_OS_WINDOWS
  61
  62 // --------------------------------------------------------------------------------------------------------------------
  63 // OpenGL includes
  64
  65 #ifdef DISTRHO_OS_MAC
  66 # ifdef DGL_USE_OPENGL3
  67 #  include <OpenGL/gl3.h>
  68 #  include <OpenGL/gl3ext.h>
  69 # else
  70 #  include <OpenGL/gl.h>
  71 # endif
  72 #else
  73 # ifndef DISTRHO_OS_WINDOWS
  74 #  define GL_GLEXT_PROTOTYPES
  75 # endif
  76 # ifndef __GLEW_H__
  77 #  include <GL/gl.h>
  78 #  include <GL/glext.h>
  79 # endif
  80 #endif
  81
  82 // --------------------------------------------------------------------------------------------------------------------
  83 // Missing OpenGL defines
  84
  85 #if defined(GL_BGR_EXT) && !defined(GL_BGR)
  86 # define GL_BGR GL_BGR_EXT
  87 #endif
  88
  89 #if defined(GL_BGRA_EXT) && !defined(GL_BGRA)
  90 # define GL_BGRA GL_BGRA_EXT
  91 #endif
  92
  93 #ifndef GL_CLAMP_TO_BORDER
  94 # define GL_CLAMP_TO_BORDER 0x812D
  95 #endif
  96
  97 // --------------------------------------------------------------------------------------------------------------------
  98 // Fix OpenGL includes for Windows, based on glfw code (part 2)
  99
 100 #ifdef DGL_CALLBACK_DEFINED
 101 # undef CALLBACK
 102 # undef DGL_CALLBACK_DEFINED
 103 #endif
 104
 105 #ifdef DGL_WINGDIAPI_DEFINED
 106 # undef WINGDIAPI
 107 # undef DGL_WINGDIAPI_DEFINED
 108 #endif
 109
 110 // --------------------------------------------------------------------------------------------------------------------
 111
 112 #endif