Add workaround for broken GL_EXT_unpack_subimage tokens

Earlier versions of gl2ext.h defined the GL_EXT_unpack_subimage tokens
without the _EXT suffix.  That's been fixed and we're using the _EXT
tokens now, but just in case we're using an older, broken header, define
the _EXT tokens manually.
This commit is contained in:
Kristian Høgsberg 2013-08-07 12:05:08 -07:00
parent 4722939d18
commit 59758a8a9e
1 changed files with 11 additions and 0 deletions

View File

@ -62,4 +62,15 @@ typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYWAYLANDBUFFERWL) (EGLDisplay dpy, st
#define EGL_BUFFER_AGE_EXT 0x313D
#endif
/* Mesas gl2ext.h and probably Khronos upstream defined
* GL_EXT_unpack_subimage with non _EXT suffixed GL_UNPACK_* tokens.
* In case we're using that mess, manually define the _EXT versions
* of the tokens here.*/
#if defined(GL_EXT_unpack_subimage) && !defined(GL_UNPACK_ROW_LENGTH_EXT)
#define GL_UNPACK_ROW_LENGTH_EXT 0x0CF2
#define GL_UNPACK_SKIP_ROWS_EXT 0x0CF3
#define GL_UNPACK_SKIP_PIXELS_EXT 0x0CF4
#endif
#endif