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config.h File Reference

Tunable configuration parameters. More...

OpenGL implementation limits
#define	MAX_MODELVIEW_STACK_DEPTH   32
	Maximum modelview matrix stack depth. More...
#define	MAX_PROJECTION_STACK_DEPTH   32
	Maximum projection matrix stack depth. More...
#define	MAX_TEXTURE_STACK_DEPTH   10
	Maximum texture matrix stack depth. More...
#define	MAX_COLOR_STACK_DEPTH   4
	Maximum color matrix stack depth. More...
#define	MAX_ATTRIB_STACK_DEPTH   16
	Maximum attribute stack depth. More...
#define	MAX_CLIENT_ATTRIB_STACK_DEPTH   16
	Maximum client attribute stack depth. More...
#define	MAX_LIST_NESTING   64
	Maximum recursion depth of display list calls. More...
#define	MAX_LIGHTS   8
	Maximum number of lights. More...
#define	MAX_CLIP_PLANES   6
	Maximum user-defined clipping planes. More...
#define	MAX_PIXEL_MAP_TABLE   256
	Maximum pixel map lookup table size. More...
#define	MAX_AUX_BUFFERS   4
	Maximum Number of auxillary color buffers. More...
#define	MAX_EVAL_ORDER   30
	Maximum order (degree) of curves. More...
#define	MAX_NAME_STACK_DEPTH   64
	Maximum Name stack depth. More...
#define	MIN_POINT_SIZE   1.0
	Minimum point size. More...
#define	MAX_POINT_SIZE   20.0
	Maximum point size. More...
#define	POINT_SIZE_GRANULARITY   0.1
	Point size granularity. More...
#define	MIN_LINE_WIDTH   1.0
	Minimum line width. More...
#define	MAX_LINE_WIDTH   10.0
	Maximum line width. More...
#define	LINE_WIDTH_GRANULARITY   0.1
	Line width granularity. More...
#define	MAX_COLOR_TABLE_SIZE   256
	Max texture palette / color table size. More...
#define	MAX_TEXTURE_LEVELS   12
	Number of 1D/2D texture mipmap levels. More...
#define	MAX_3D_TEXTURE_LEVELS   9
	Number of 3D texture mipmap levels. More...
#define	MAX_CUBE_TEXTURE_LEVELS   12
	Number of cube texture mipmap levels - GL_ARB_texture_cube_map. More...
#define	MAX_TEXTURE_RECT_SIZE   2048
	Maximum rectangular texture size - GL_NV_texture_rectangle. More...
#define	MAX_TEXTURE_UNITS   8
	Number of texture units - GL_ARB_multitexture. More...
Separate numbers of texture coordinates and texture image units.
These values will eventually replace most instances of MAX_TEXTURE_UNITS. We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS. And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS.
#define	MAX_TEXTURE_COORD_UNITS   8
#define	MAX_TEXTURE_IMAGE_UNITS   8
Mesa-specific parameters
#define	TRIANGLE_WALK_DOUBLE   0
	If non-zero use GLdouble for walking triangle edges, for better accuracy. More...
#define	ACCUM_BITS   16
	Bits per accumulation buffer color component: 8, 16 or 32. More...
#define	DEFAULT_SOFTWARE_DEPTH_BITS   16
	Bits per depth buffer value. More...
#define	DEFAULT_SOFTWARE_DEPTH_TYPE   GLushort
	Depth buffer data type. More...
#define	STENCIL_BITS   8
	Bits per stencil value: 8. More...
#define	CHAN_BITS   8
	Bits per color channel: 8, 16 or 32. More...
#define	RCOMP   0
#define	GCOMP   1
#define	BCOMP   2
#define	ACOMP   3
#define	FEATURE_ARB_vertex_buffer_object   _HAVE_FULL_GL
#define	FEATURE_ARB_vertex_program   _HAVE_FULL_GL
#define	FEATURE_ARB_fragment_program   _HAVE_FULL_GL
#define	FEATURE_ARB_occlusion_query   _HAVE_FULL_GL
#define	FEATURE_EXT_pixel_buffer_object   _HAVE_FULL_GL
#define	FEATURE_MESA_program_debug   _HAVE_FULL_GL
#define	FEATURE_NV_fence   _HAVE_FULL_GL
#define	FEATURE_NV_fragment_program   _HAVE_FULL_GL
#define	FEATURE_NV_vertex_program   _HAVE_FULL_GL
#define	FEATURE_userclip   _HAVE_FULL_GL
#define	FEATURE_texgen   _HAVE_FULL_GL
#define	FEATURE_windowpos   _HAVE_FULL_GL
Defines
#define	MAX_WIDTH   4096
	Maximum viewport/image width. More...
#define	MAX_HEIGHT   4096
	Maximum viewport/image height. More...
#define	MAX_ARRAY_LOCK_SIZE   3000
	Maxmimum size for CVA. More...
#define	SUB_PIXEL_BITS   4
	Subpixel precision for antialiasing, window coordinate snapping. More...
#define	HISTOGRAM_TABLE_SIZE   256
	Size of histogram tables. More...
#define	MAX_CONVOLUTION_WIDTH   9
	Max convolution filter width. More...
#define	MAX_CONVOLUTION_HEIGHT   9
	Max convolution filter height. More...
#define	MAX_COMPRESSED_TEXTURE_FORMATS   25
	For GL_ARB_texture_compression. More...
#define	MAX_TEXTURE_MAX_ANISOTROPY   16.0
	For GL_EXT_texture_filter_anisotropic. More...
#define	MAX_TEXTURE_LOD_BIAS   11.0
	For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1). More...

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Detailed Description

Tunable configuration parameters.

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Define Documentation

#define ACCUM_BITS   16

Bits per accumulation buffer color component: 8, 16 or 32.

#define ACOMP   3

#define BCOMP   2

#define CHAN_BITS   8

Bits per color channel: 8, 16 or 32.

#define DEFAULT_SOFTWARE_DEPTH_BITS   16

Bits per depth buffer value. Any reasonable value up to 31 will work. 32 doesn't work because of integer overflow problems in the rasterizer code.

#define DEFAULT_SOFTWARE_DEPTH_TYPE   GLushort

Depth buffer data type.

#define FEATURE_ARB_fragment_program   _HAVE_FULL_GL

#define FEATURE_ARB_occlusion_query   _HAVE_FULL_GL

#define FEATURE_ARB_vertex_buffer_object   _HAVE_FULL_GL

#define FEATURE_ARB_vertex_program   _HAVE_FULL_GL

#define FEATURE_EXT_pixel_buffer_object   _HAVE_FULL_GL

#define FEATURE_MESA_program_debug   _HAVE_FULL_GL

#define FEATURE_NV_fence   _HAVE_FULL_GL

#define FEATURE_NV_fragment_program   _HAVE_FULL_GL

#define FEATURE_NV_vertex_program   _HAVE_FULL_GL

#define FEATURE_texgen   _HAVE_FULL_GL

#define FEATURE_userclip   _HAVE_FULL_GL

#define FEATURE_windowpos   _HAVE_FULL_GL

#define GCOMP   1

#define HISTOGRAM_TABLE_SIZE   256

Size of histogram tables.

#define LINE_WIDTH_GRANULARITY   0.1

Line width granularity.

#define MAX_3D_TEXTURE_LEVELS   9

Number of 3D texture mipmap levels.

#define MAX_ARRAY_LOCK_SIZE   3000

Maxmimum size for CVA. May be overridden by the drivers.

#define MAX_ATTRIB_STACK_DEPTH   16

Maximum attribute stack depth.

#define MAX_AUX_BUFFERS   4

Maximum Number of auxillary color buffers.

#define MAX_CLIENT_ATTRIB_STACK_DEPTH   16

Maximum client attribute stack depth.

#define MAX_CLIP_PLANES   6

Maximum user-defined clipping planes.

#define MAX_COLOR_STACK_DEPTH   4

Maximum color matrix stack depth.

#define MAX_COLOR_TABLE_SIZE   256

Max texture palette / color table size.

#define MAX_COMPRESSED_TEXTURE_FORMATS   25

For GL_ARB_texture_compression.

#define MAX_CONVOLUTION_HEIGHT   9

Max convolution filter height.

#define MAX_CONVOLUTION_WIDTH   9

Max convolution filter width.

#define MAX_CUBE_TEXTURE_LEVELS   12

Number of cube texture mipmap levels - GL_ARB_texture_cube_map.

#define MAX_EVAL_ORDER   30

Maximum order (degree) of curves.

#define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS   1

For GL_ARB_fragment_program.

#define MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS   48

#define MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS   4

#define MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS   24

#define MAX_HEIGHT   4096

Maximum viewport/image height.

#define MAX_LIGHTS   8

Maximum number of lights.

#define MAX_LINE_WIDTH   10.0

Maximum line width.

#define MAX_LIST_NESTING   64

Maximum recursion depth of display list calls.

#define MAX_MODELVIEW_STACK_DEPTH   32

Maximum modelview matrix stack depth.

#define MAX_NAME_STACK_DEPTH   64

Maximum Name stack depth.

#define MAX_NV_FRAGMENT_PROGRAM_INPUTS   12

#define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS   128

For GL_NV_fragment_program.

#define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS   3

#define MAX_NV_FRAGMENT_PROGRAM_PARAMS   64

#define MAX_NV_FRAGMENT_PROGRAM_TEMPS   96

#define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS   2

#define MAX_NV_VERTEX_PROGRAM_INPUTS   16

#define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS   128

For GL_NV_vertex_program.

#define MAX_NV_VERTEX_PROGRAM_OUTPUTS   15

#define MAX_NV_VERTEX_PROGRAM_PARAMS   96

#define MAX_NV_VERTEX_PROGRAM_TEMPS   12

#define MAX_PIXEL_MAP_TABLE   256

Maximum pixel map lookup table size.

#define MAX_POINT_SIZE   20.0

Maximum point size.

#define MAX_PROGRAM_LOCAL_PARAMS   96

For any program target/extension.

#define MAX_PROGRAM_MATRICES   8

#define MAX_PROGRAM_MATRIX_STACK_DEPTH   4

#define MAX_PROJECTION_STACK_DEPTH   32

Maximum projection matrix stack depth.

#define MAX_TEXTURE_COORD_UNITS   8

#define MAX_TEXTURE_IMAGE_UNITS   8

#define MAX_TEXTURE_LEVELS   12

Number of 1D/2D texture mipmap levels.

#define MAX_TEXTURE_LOD_BIAS   11.0

For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1).

#define MAX_TEXTURE_MAX_ANISOTROPY   16.0

For GL_EXT_texture_filter_anisotropic.

#define MAX_TEXTURE_RECT_SIZE   2048

Maximum rectangular texture size - GL_NV_texture_rectangle.

#define MAX_TEXTURE_STACK_DEPTH   10

Maximum texture matrix stack depth.

#define MAX_TEXTURE_UNITS   8

Number of texture units - GL_ARB_multitexture.

#define MAX_VERTEX_PROGRAM_ADDRESS_REGS   1

For GL_ARB_vertex_program.

#define MAX_VERTEX_PROGRAM_ATTRIBS   16

#define MAX_WIDTH   4096

Maximum viewport/image width. Must accomodate all texture sizes too.

#define MIN_LINE_WIDTH   1.0

Minimum line width.

#define MIN_POINT_SIZE   1.0

Minimum point size.

#define POINT_SIZE_GRANULARITY   0.1

Point size granularity.

#define RCOMP   0

#define STENCIL_BITS   8

Bits per stencil value: 8.

#define SUB_PIXEL_BITS   4

Subpixel precision for antialiasing, window coordinate snapping.

#define TRIANGLE_WALK_DOUBLE   0

If non-zero use GLdouble for walking triangle edges, for better accuracy.

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