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  1. GL_EXT_histogram
  2. http://www.opengl.org/registry/specs/EXT/histogram.txt
  3. GL_EXT_histogram
  4. GL_HISTOGRAM_EXT 0x8024
  5. GL_PROXY_HISTOGRAM_EXT 0x8025
  6. GL_HISTOGRAM_WIDTH_EXT 0x8026
  7. GL_HISTOGRAM_FORMAT_EXT 0x8027
  8. GL_HISTOGRAM_RED_SIZE_EXT 0x8028
  9. GL_HISTOGRAM_GREEN_SIZE_EXT 0x8029
  10. GL_HISTOGRAM_BLUE_SIZE_EXT 0x802A
  11. GL_HISTOGRAM_ALPHA_SIZE_EXT 0x802B
  12. GL_HISTOGRAM_LUMINANCE_SIZE_EXT 0x802C
  13. GL_HISTOGRAM_SINK_EXT 0x802D
  14. GL_MINMAX_EXT 0x802E
  15. GL_MINMAX_FORMAT_EXT 0x802F
  16. GL_MINMAX_SINK_EXT 0x8030
  17. void glGetHistogramEXT (GLenum target, GLboolean reset, GLenum format, GLenum type, void *values)
  18. void glGetHistogramParameterfvEXT (GLenum target, GLenum pname, GLfloat* params)
  19. void glGetHistogramParameterivEXT (GLenum target, GLenum pname, GLint* params)
  20. void glGetMinmaxEXT (GLenum target, GLboolean reset, GLenum format, GLenum type, void *values)
  21. void glGetMinmaxParameterfvEXT (GLenum target, GLenum pname, GLfloat* params)
  22. void glGetMinmaxParameterivEXT (GLenum target, GLenum pname, GLint* params)
  23. void glHistogramEXT (GLenum target, GLsizei width, GLenum internalformat, GLboolean sink)
  24. void glMinmaxEXT (GLenum target, GLenum internalformat, GLboolean sink)
  25. void glResetHistogramEXT (GLenum target)
  26. void glResetMinmaxEXT (GLenum target)