diff options
Diffstat (limited to 'xc/extras/Mesa/src/extensions.c')
| -rw-r--r-- | xc/extras/Mesa/src/extensions.c | 340 |
1 files changed, 240 insertions, 100 deletions
diff --git a/xc/extras/Mesa/src/extensions.c b/xc/extras/Mesa/src/extensions.c index f24c55539..19eca11ba 100644 --- a/xc/extras/Mesa/src/extensions.c +++ b/xc/extras/Mesa/src/extensions.c @@ -1,9 +1,10 @@ +/* $Id: extensions.c,v 1.18 2002/02/14 01:59:29 dawes Exp $ */ /* * Mesa 3-D graphics library - * Version: 3.4 + * Version: 3.5.1 * - * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -32,7 +33,7 @@ #include "extensions.h" #include "mem.h" #include "simple_list.h" -#include "types.h" +#include "mtypes.h" #endif @@ -41,147 +42,278 @@ struct extension { struct extension *next, *prev; GLint enabled; + GLboolean *flag; /* optional flag stored elsewhere */ char name[MAX_EXT_NAMELEN+1]; void (*notify)( GLcontext *, GLboolean ); }; +#define F(x) (int)&(((struct gl_extensions *)0)->x) +#define ON GL_TRUE +#define OFF GL_FALSE + +static struct { + GLboolean enabled; + const char *name; + int flag_offset; +} default_extensions[] = { + { OFF, "GL_ARB_imaging", F(ARB_imaging) }, + { OFF, "GL_ARB_multisample", F(ARB_multisample) }, + { OFF, "GL_ARB_multitexture", F(ARB_multitexture) }, + { OFF, "GL_ARB_texture_border_clamp", F(ARB_texture_border_clamp) }, + { OFF, "GL_ARB_texture_compression", F(ARB_texture_compression) }, + { OFF, "GL_ARB_texture_cube_map", F(ARB_texture_cube_map) }, + { OFF, "GL_ARB_texture_env_add", F(EXT_texture_env_add) }, + { OFF, "GL_ARB_texture_env_combine", F(ARB_texture_env_combine) }, + { OFF, "GL_ARB_texture_env_dot3", F(ARB_texture_env_dot3) }, + { OFF, "GL_ARB_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)}, + { ON, "GL_ARB_transpose_matrix", 0 }, + { ON, "GL_EXT_abgr", 0 }, + { ON, "GL_EXT_bgra", 0 }, + { OFF, "GL_EXT_blend_color", F(EXT_blend_color) }, + { OFF, "GL_EXT_blend_func_separate", F(EXT_blend_func_separate) }, + { OFF, "GL_EXT_blend_logic_op", F(EXT_blend_logic_op) }, + { OFF, "GL_EXT_blend_minmax", F(EXT_blend_minmax) }, + { OFF, "GL_EXT_blend_subtract", F(EXT_blend_subtract) }, + { ON, "GL_EXT_clip_volume_hint", F(EXT_clip_volume_hint) }, + { OFF, "GL_EXT_cull_vertex", 0 }, + { OFF, "GL_EXT_convolution", F(EXT_convolution) }, + { ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) }, + { OFF, "GL_EXT_fog_coord", F(EXT_fog_coord) }, + { OFF, "GL_EXT_histogram", F(EXT_histogram) }, + { ON, "GL_EXT_packed_pixels", F(EXT_packed_pixels) }, + { OFF, "GL_EXT_paletted_texture", F(EXT_paletted_texture) }, + { OFF, "GL_EXT_point_parameters", F(EXT_point_parameters) }, + { ON, "GL_EXT_polygon_offset", F(EXT_polygon_offset) }, + { ON, "GL_EXT_rescale_normal", F(EXT_rescale_normal) }, + { OFF, "GL_EXT_secondary_color", F(EXT_secondary_color) }, + { OFF, "GL_EXT_shared_texture_palette", F(EXT_shared_texture_palette) }, + { OFF, "GL_EXT_stencil_wrap", F(EXT_stencil_wrap) }, + { ON, "GL_EXT_texture3D", F(EXT_texture3D) }, + { OFF, "GL_EXT_texture_compression_s3tc", F(EXT_texture_compression_s3tc) }, + { OFF, "GL_EXT_texture_edge_clamp", F(SGIS_texture_edge_clamp) }, + { OFF, "GL_EXT_texture_env_add", F(EXT_texture_env_add) }, + { OFF, "GL_EXT_texture_env_combine", F(EXT_texture_env_combine) }, + { OFF, "GL_EXT_texture_env_dot3", F(EXT_texture_env_dot3) }, + { OFF, "GL_EXT_texture_filter_anisotropic", F(EXT_texture_filter_anisotropic) }, + { ON, "GL_EXT_texture_object", F(EXT_texture_object) }, + { OFF, "GL_EXT_texture_lod_bias", F(EXT_texture_lod_bias) }, + { ON, "GL_EXT_vertex_array", 0 }, + { OFF, "GL_EXT_vertex_array_set", F(EXT_vertex_array_set) }, + { OFF, "GL_HP_occlusion_test", F(HP_occlusion_test) }, + { ON, "GL_IBM_rasterpos_clip", F(IBM_rasterpos_clip) }, + { OFF, "GL_INGR_blend_func_separate", F(INGR_blend_func_separate) }, + { OFF, "GL_MESA_packed_depth_stencil", 0 }, + { OFF, "GL_MESA_resize_buffers", F(MESA_resize_buffers) }, + { OFF, "GL_MESA_sprite_point", F(MESA_sprite_point) }, + { ON, "GL_MESA_window_pos", F(MESA_window_pos) }, + { OFF, "GL_NV_blend_square", F(NV_blend_square) }, + { ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) }, + { OFF, "GL_SGI_color_matrix", F(SGI_color_matrix) }, + { OFF, "GL_SGI_color_table", F(SGI_color_table) }, + { OFF, "GL_SGIS_generate_mipmap", F(SGIS_generate_mipmap) }, + { OFF, "GL_SGIS_pixel_texture", F(SGIS_pixel_texture) }, + { OFF, "GL_SGIS_texture_border_clamp", F(ARB_texture_border_clamp) }, + { OFF, "GL_SGIS_texture_edge_clamp", F(SGIS_texture_edge_clamp) }, + { OFF, "GL_SGIX_depth_texture", F(SGIX_depth_texture) }, + { OFF, "GL_SGIX_pixel_texture", F(SGIX_pixel_texture) }, + { OFF, "GL_SGIX_shadow", F(SGIX_shadow) }, + { OFF, "GL_SGIX_shadow_ambient", F(SGIX_shadow_ambient) }, + { OFF, "GL_3DFX_texture_compression_FXT1", F(_3DFX_texture_compression_FXT1) } +}; -static struct { int enabled; const char *name; } default_extensions[] = { - { DEFAULT_OFF, "GL_ARB_imaging" }, /* in progress */ - { DEFAULT_ON, "GL_ARB_multitexture" }, - { DEFAULT_OFF, "GL_ARB_texture_compression" }, - { DEFAULT_OFF, "GL_ARB_texture_cube_map" }, /* in progress */ - { ALWAYS_ENABLED, "GL_ARB_transpose_matrix" }, - { ALWAYS_ENABLED, "GL_EXT_abgr" }, - { DEFAULT_ON, "GL_EXT_blend_color" }, - { DEFAULT_ON, "GL_EXT_blend_func_separate" }, - { DEFAULT_ON, "GL_EXT_blend_logic_op" }, - { DEFAULT_ON, "GL_EXT_blend_minmax" }, - { DEFAULT_ON, "GL_EXT_blend_subtract" }, - { DEFAULT_ON, "GL_EXT_clip_volume_hint" }, - { DEFAULT_OFF, "GL_EXT_convolution" }, /* in progress */ - { DEFAULT_ON, "GL_EXT_compiled_vertex_array" }, - { DEFAULT_ON, "GL_EXT_histogram" }, - { DEFAULT_ON, "GL_EXT_packed_pixels" }, - { DEFAULT_ON, "GL_EXT_paletted_texture" }, - { DEFAULT_ON, "GL_EXT_point_parameters" }, - { ALWAYS_ENABLED, "GL_EXT_polygon_offset" }, - { ALWAYS_ENABLED, "GL_EXT_rescale_normal" }, - { DEFAULT_ON, "GL_EXT_shared_texture_palette" }, - { ALWAYS_ENABLED, "GL_EXT_stencil_wrap" }, - { DEFAULT_ON, "GL_EXT_texture3D" }, - { DEFAULT_OFF, "GL_EXT_texture_compression_s3tc" }, - { DEFAULT_OFF, "GL_EXT_texture_env" }, - { DEFAULT_ON, "GL_EXT_texture_env_add" }, - { DEFAULT_OFF, "GL_EXT_texture_env_combine" }, - { DEFAULT_OFF, "GL_EXT_texture_env_dot3" }, - { ALWAYS_ENABLED, "GL_EXT_texture_object" }, - { DEFAULT_ON, "GL_EXT_texture_lod_bias" }, - { ALWAYS_ENABLED, "GL_EXT_vertex_array" }, - { DEFAULT_OFF, "GL_EXT_vertex_array_set" }, - { DEFAULT_OFF, "GL_HP_occlusion_test" }, - { DEFAULT_ON, "GL_INGR_blend_func_separate" }, - { ALWAYS_ENABLED, "GL_MESA_window_pos" }, - { ALWAYS_ENABLED, "GL_MESA_resize_buffers" }, - { DEFAULT_OFF, "GL_NV_blend_square" }, - { ALWAYS_ENABLED, "GL_NV_texgen_reflection" }, - { DEFAULT_ON, "GL_PGI_misc_hints" }, - { DEFAULT_ON, "GL_SGI_color_matrix" }, - { DEFAULT_ON, "GL_SGI_color_table" }, - { DEFAULT_ON, "GL_SGIS_pixel_texture" }, - { DEFAULT_ON, "GL_SGIS_texture_edge_clamp" }, - { DEFAULT_ON, "GL_SGIX_pixel_texture" }, - { DEFAULT_OFF, "GL_3DFX_texture_compression_FXT1" } -}; /* - * Update the boolean convenience flags in the Extensions struct. + * Enable all extensions suitable for a software-only renderer. + * This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc. */ -static void -update_extension_flags( GLcontext *ctx ) +void +_mesa_enable_sw_extensions(GLcontext *ctx) +{ + const char *extensions[] = { + "GL_ARB_imaging", + "GL_ARB_multitexture", + "GL_ARB_texture_border_clamp", + "GL_ARB_texture_cube_map", + "GL_ARB_texture_env_add", + "GL_ARB_texture_env_combine", + "GL_ARB_texture_env_dot3", + "GL_ARB_texture_mirrored_repeat", + "GL_EXT_blend_color", + "GL_EXT_blend_func_separate", + "GL_EXT_blend_logic_op", + "GL_EXT_blend_minmax", + "GL_EXT_blend_subtract", + "GL_EXT_convolution", + "GL_EXT_fog_coord", + "GL_EXT_histogram", + "GL_EXT_paletted_texture", + "GL_EXT_point_parameters", + "GL_EXT_secondary_color", + "GL_EXT_shared_texture_palette", + "GL_EXT_stencil_wrap", + "GL_EXT_texture_edge_clamp", + "GL_EXT_texture_env_add", + "GL_EXT_texture_env_combine", + "GL_EXT_texture_env_dot3", + "GL_EXT_texture_lod_bias", + "GL_HP_occlusion_test", + "GL_INGR_blend_func_separate", + "GL_MESA_resize_buffers", + "GL_NV_blend_square", + "GL_NV_texgen_reflection", + "GL_SGI_color_matrix", + "GL_SGI_color_table", + "GL_SGIS_generate_mipmap", + "GL_SGIS_pixel_texture", + "GL_SGIS_texture_edge_clamp", + "GL_SGIS_texture_border_clamp", + "GL_SGIX_depth_texture", + "GL_SGIX_pixel_texture", + "GL_SGIX_shadow", + "GL_SGIX_shadow_ambient", + NULL + }; + GLuint i; + + for (i = 0; extensions[i]; i++) { + _mesa_enable_extension(ctx, extensions[i]); + } +} + + +/* + * Enable GL_ARB_imaging and all the EXT extensions that are subsets of it. + */ +void +_mesa_enable_imaging_extensions(GLcontext *ctx) +{ + const char *extensions[] = { + "GL_ARB_imaging", + "GL_EXT_blend_color", + "GL_EXT_blend_minmax", + "GL_EXT_blend_subtract", + "GL_EXT_convolution", + "GL_EXT_histogram", + "GL_SGI_color_matrix", + "GL_SGI_color_table", + NULL + }; + GLuint i; + + for (i = 0; extensions[i]; i++) { + _mesa_enable_extension(ctx, extensions[i]); + } +} + + + +/* + * Enable all OpenGL 1.3 features and extensions. + */ +void +_mesa_enable_1_3_extensions(GLcontext *ctx) { - /* Update flags */ - ctx->Extensions.HaveTextureEnvAdd = gl_extension_is_enabled(ctx, "GL_EXT_texture_env_add"); - ctx->Extensions.HaveTextureEnvCombine = gl_extension_is_enabled(ctx, "GL_EXT_texture_env_combine"); - ctx->Extensions.HaveTextureEnvDot3 = gl_extension_is_enabled(ctx, "GL_EXT_texture_env_dot3"); - ctx->Extensions.HaveTextureLodBias = gl_extension_is_enabled(ctx, "GL_EXT_texture_lod_bias"); - ctx->Extensions.HaveHpOcclusionTest = gl_extension_is_enabled(ctx, "GL_HP_occlusion_test"); - ctx->Extensions.HaveTextureCubeMap = gl_extension_is_enabled(ctx, "GL_ARB_texture_cube_map"); - ctx->Extensions.HaveTextureCompression = gl_extension_is_enabled(ctx, "GL_ARB_texture_compression"); - ctx->Extensions.HaveTextureCompressionS3TC = gl_extension_is_enabled(ctx, "GL_EXT_texture_compression_s3tc"); - ctx->Extensions.HaveTextureCompressionFXT1 = gl_extension_is_enabled(ctx, "GL_3DFX_texture_compression_FXT1"); - ctx->Extensions.HaveBlendSquare = gl_extension_is_enabled(ctx, "GL_NV_blend_square"); + const char *extensions[] = { + "GL_ARB_multisample", + "GL_ARB_multitexture", + "GL_ARB_texture_border_clamp", + "GL_ARB_texture_compression", + "GL_ARB_texture_cube_map", + "GL_ARB_texture_env_add", + "GL_ARB_texture_env_combine", + "GL_ARB_texture_env_dot3", + "GL_ARB_transpose_matrix", + NULL + }; + GLuint i; + + for (i = 0; extensions[i]; i++) { + _mesa_enable_extension(ctx, extensions[i]); + } } -int gl_extensions_add( GLcontext *ctx, - int state, - const char *name, - void (*notify)(void) ) +/* + * Add a new extenstion. This would be called from a Mesa driver. + */ +void +_mesa_add_extension( GLcontext *ctx, + GLboolean enabled, + const char *name, + GLboolean *flag_ptr ) { - (void) notify; + /* We should never try to add an extension after + * _mesa_extensions_get_string() has been called! + */ + assert(ctx->Extensions.ext_string == 0); - if (ctx->Extensions.ext_string == 0) { struct extension *t = MALLOC_STRUCT(extension); - t->enabled = state; + t->enabled = enabled; strncpy(t->name, name, MAX_EXT_NAMELEN); t->name[MAX_EXT_NAMELEN] = 0; - t->notify = (void (*)(GLcontext *, GLboolean)) notify; + t->flag = flag_ptr; + if (t->flag) + *t->flag = enabled; insert_at_tail( ctx->Extensions.ext_list, t ); - return 0; } - return 1; } /* * Either enable or disable the named extension. */ -static int set_extension( GLcontext *ctx, const char *name, GLint state ) +static void +set_extension( GLcontext *ctx, const char *name, GLint state ) { + /* XXX we should assert that ext_string is null. We should never be + * enabling/disabling extensions after _mesa_extensions_get_string() + * has been called! + */ struct extension *i; foreach( i, ctx->Extensions.ext_list ) if (strncmp(i->name, name, MAX_EXT_NAMELEN) == 0) break; - if (i == ctx->Extensions.ext_list) - return 1; - - if (!(i->enabled & ALWAYS_ENABLED)) { - if (i->notify) i->notify( ctx, state ); - i->enabled = state; + if (i == ctx->Extensions.ext_list) { + /* this is an error. Drivers should never try to enable/disable + * an extension which is unknown to Mesa or wasn't added by calling + * _mesa_add_extension(). + */ + return; } - update_extension_flags(ctx); - - return 0; + if (i->flag) + *(i->flag) = state; + i->enabled = state; } -int gl_extensions_enable( GLcontext *ctx, const char *name ) + +void +_mesa_enable_extension( GLcontext *ctx, const char *name ) { if (ctx->Extensions.ext_string == 0) - return set_extension( ctx, name, 1 ); - return 1; + set_extension( ctx, name, 1 ); } -int gl_extensions_disable( GLcontext *ctx, const char *name ) +void +_mesa_disable_extension( GLcontext *ctx, const char *name ) { if (ctx->Extensions.ext_string == 0) - return set_extension( ctx, name, 0 ); - return 1; + set_extension( ctx, name, 0 ); } /* * Test if the named extension is enabled in this context. */ -GLboolean gl_extension_is_enabled( GLcontext *ctx, const char *name) +GLboolean +_mesa_extension_is_enabled( GLcontext *ctx, const char *name) { struct extension *i; foreach( i, ctx->Extensions.ext_list ) @@ -196,7 +328,8 @@ GLboolean gl_extension_is_enabled( GLcontext *ctx, const char *name) } -void gl_extensions_dtr( GLcontext *ctx ) +void +_mesa_extensions_dtr( GLcontext *ctx ) { struct extension *i, *nexti; @@ -217,25 +350,32 @@ void gl_extensions_dtr( GLcontext *ctx ) } -void gl_extensions_ctr( GLcontext *ctx ) +void +_mesa_extensions_ctr( GLcontext *ctx ) { GLuint i; + GLboolean *base = (GLboolean *)&ctx->Extensions; - ctx->Extensions.ext_string = 0; + ctx->Extensions.ext_string = NULL; ctx->Extensions.ext_list = MALLOC_STRUCT(extension); make_empty_list( ctx->Extensions.ext_list ); for (i = 0 ; i < Elements(default_extensions) ; i++) { - gl_extensions_add( ctx, - default_extensions[i].enabled, - default_extensions[i].name, - 0 ); + GLboolean *ptr = NULL; + + if (default_extensions[i].flag_offset) + ptr = base + default_extensions[i].flag_offset; + + (void) _mesa_add_extension( ctx, + default_extensions[i].enabled, + default_extensions[i].name, + ptr); } - update_extension_flags(ctx); } -const char *gl_extensions_get_string( GLcontext *ctx ) +const char * +_mesa_extensions_get_string( GLcontext *ctx ) { if (ctx->Extensions.ext_string == 0) { |