[FFmpeg-trac] #5979(avdevice:new): Fix for OpenCl & OpenGL on OSX

[FFmpeg]

#5979: Fix for OpenCl & OpenGL on OSX
-------------------------------------+-------------------------------------
             Reporter:  f77hacker    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avdevice     |                  Version:  git-
             Keywords:               |  master
  opencl,opengl,osx                  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 git clone blah blah blah
 configure lots of options --enable-opencl --enable-opengl

 /opt/local/include/GL/glext.h:111:54: error: unknown type name 'GLenum';
 did you mean 'enum'?
 typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint
 start, GLuint end, GLsizei co...
                                                      ^~~~~~
                                                      enum
 /opt/local/include/GL/glext.h:111:61: warning: declaration of 'enum mode'
 will not be visible outside of this
       function [-Wvisibility]
 typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint
 start, GLuint end, GLsizei co...
                                                             ^
 /opt/local/include/GL/glext.h:111:67: error: unknown type name 'GLuint'
 typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint
 start, GLuint end, GLsizei co...
                                                                   ^
 /opt/local/include/GL/glext.h:111:81: error: unknown type name 'GLuint'
 typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint
 start, GLuint end, GLsizei co...
 ^
 /opt/local/include/GL/glext.h:111:93: error: unknown type name 'GLsizei'
 typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint
 start, GLuint end, GLsizei count, GLe...
 ^
 /opt/local/include/GL/glext.h:111:108: error: unknown type name 'GLenum';
 did you mean 'enum'?
   ...PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint start, GLuint end,
 GLsizei count, GLenum type, const ...
 ^~~~~~
 enum
 /opt/local/include/GL/glext.h:111:115: warning: declaration of 'enum type'
 will not be visible outside of this
       function [-Wvisibility]
   ...PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint start, GLuint end,
 GLsizei count, GLenum type, const ...
 ^
 /opt/local/include/GL/glext.h:112:47: error: unknown type name 'GLenum';
 did you mean 'enum'?
 typedef void (APIENTRYP PFNGLTEXIMAGE3DPROC) (GLenum target, GLint level,
 GLint internalformat, GLsize...
                                               ^~~~~~
                                               enum
 /opt/local/include/GL/glext.h:112:54: warning: declaration of 'enum
 target' will not be visible outside of
       this function [-Wvisibility]
 typedef void (APIENTRYP PFNGLTEXIMAGE3DPROC) (GLenum target, GLint level,
 GLint internalformat, GLsize...

 /opt/local/include/GL/glext.h:112:164: warning: declaration of 'enum
 format' will not be visible outside of
       this function [-Wvisibility]
   ...GLint internalformat, GLsizei width, GLsizei height, GLsizei depth,
 GLint border, GLenum format, GLenu...
 ^
 /opt/local/include/GL/glext.h:112:172: error: unknown type name 'GLenum';
 did you mean 'enum'?
   ...GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum
 format, GLenum type, const void *pi...
 ^~~~~~
 enum
 /opt/local/include/GL/glext.h:112:179: warning: declaration of 'enum type'
 will not be visible outside of this
       function [-Wvisibility]
   ...GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum
 format, GLenum type, const void *pi...
 ^
 /opt/local/include/GL/glext.h:113:108: error: unknown type name 'GLint'
   ...PFNGLTEXSUBIMAGE3DPROC) (GLenum target, GLint level, GLint xoffset,
 GLint yoffset, GLint zoffset, GLsi...
 ^

 '''+ a shitload of more errors'''

 fatal error: too many errors emitted, stopping now [-ferror-limit=]



 }}}

  modify opengl_enc.c

 was
 {{{
 #if HAVE_WINDOWS_H
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #endif
 #if HAVE_OPENGL_GL3_H
 #include <OpenGL/gl3.h>
 #elif HAVE_ES2_GL_H
 #include <ES2/gl.h>
 #else
 #include <GL/gl.h>
 #include <GL/glext.h>
 #endif
 #if HAVE_GLXGETPROCADDRESS
 #include <GL/glx.h>
 #endif

 #if HAVE_SDL2
 #include <SDL.h>
 #include <SDL/SDL_video.h>
 #endif
 }}}
 my fix to make this compile on OSX 10.11.6,  using
 {{{
 --cc=clang-mp-3.9 --cxx=clang++-mp-3.9
 --optflags='-O3 -pipe -arch x86_64 -m64 -mtune=haswell -march=haswell
 -mmacosx-version-min=10.11 -fopenmp -fomit-frame-pointer -fno-common
 -funroll-loops -mavx2 -mfma -mfpmath=sse -msse2 -msse3 -msse4.1 -msse4.2'
 }}}

 is
 {{{
 #include <SDL.h>
 #include <SDL/SDL_video.h>
 #include <GLES3/gl32.h>
 #include <OpenGL/glu.h>
 #include <OpenCL/opencl.h>}}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5979>
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