-/* $Id: extensions.c,v 1.48 2001/02/20 16:42:25 brianp Exp $ */
+/* $Id: extensions.c,v 1.56 2001/03/26 19:42:40 brianp Exp $ */
/*
* Mesa 3-D graphics library
const char *name;
int flag_offset;
} default_extensions[] = {
- { ON, "GL_ARB_imaging", F(ARB_imaging) },
- { ON, "GL_ARB_multitexture", F(ARB_multitexture) },
- { OFF, "GL_ARB_texture_compression", F(ARB_texture_compression) },
- { OFF, "GL_ARB_texture_cube_map", F(ARB_texture_cube_map) },
- { ON, "GL_ARB_texture_env_add", F(ARB_texture_env_add) },
- { ON, "GL_ARB_tranpose_matrix", 0 },
- { ON, "GL_EXT_abgr", 0 },
- { OFF, "GL_EXT_bgra", 0 },
- { ON, "GL_EXT_blend_color", F(EXT_blend_color) },
- { ON, "GL_EXT_blend_func_separate", F(EXT_blend_func_separate) },
- { ON, "GL_EXT_blend_logic_op", F(EXT_blend_logic_op) },
- { ON, "GL_EXT_blend_minmax", F(EXT_blend_minmax) },
- { ON, "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 },
- { ON, "GL_EXT_convolution", F(EXT_convolution) },
- { ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) },
- { ON, "GL_EXT_fog_coord", F(EXT_fog_coord) },
- { ON, "GL_EXT_histogram", F(EXT_histogram) },
- { ON, "GL_EXT_packed_pixels", F(EXT_packed_pixels) },
- { ON, "GL_EXT_paletted_texture", F(EXT_paletted_texture) },
- { ON, "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) },
- { ON, "GL_EXT_secondary_color", F(EXT_secondary_color) },
- { ON, "GL_EXT_shared_texture_palette", F(EXT_shared_texture_palette) },
- { ON, "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)},
- { ON, "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) },
- { ON, "GL_EXT_texture_object", F(EXT_texture_object) },
- { ON, "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_INGR_blend_func_separate", F(INGR_blend_func_separate) },
- { ON, "GL_MESA_window_pos", F(MESA_window_pos) },
- { ON, "GL_MESA_resize_buffers", F(MESA_resize_buffers) },
- { OFF, "GL_MESA_sprite_point", F(MESA_sprite_point) },
- { OFF, "GL_NV_blend_square", F(NV_blend_square) },
- { ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) },
- { ON, "GL_SGI_color_matrix", F(SGI_color_matrix) },
- { ON, "GL_SGI_color_table", F(SGI_color_table) },
- { ON, "GL_SGIS_pixel_texture", F(SGIS_pixel_texture) },
- { ON, "GL_SGIS_texture_edge_clamp", F(SGIS_texture_edge_clamp) },
- { OFF, "GL_SGIX_depth_texture", F(SGIX_depth_texture) },
- { OFF, "GL_SGIX_shadow", F(SGIX_shadow) },
- { OFF, "GL_SGIX_shadow_ambient", F(SGIX_shadow_ambient) },
- { ON, "GL_SGIX_pixel_texture", F(SGIX_pixel_texture) },
- { OFF, "GL_3DFX_texture_compression_FXT1", F(_3DFX_texture_compression_FXT1) }
+ { OFF, "GL_ARB_imaging", F(ARB_imaging) },
+ { 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(EXT_texture_env_combine) },
+ { OFF, "GL_ARB_texture_env_dot3", F(EXT_texture_env_dot3) },
+ { ON, "GL_ARB_tranpose_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_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) },
+ { 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_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) }
};
void
_mesa_enable_sw_extensions(GLcontext *ctx)
{
- gl_extensions_enable(ctx, "GL_ARB_texture_cube_map");
- gl_extensions_enable(ctx, "GL_EXT_bgra");
- gl_extensions_enable(ctx, "GL_EXT_texture_env_combine");
- gl_extensions_enable(ctx, "GL_EXT_texture_env_dot3");
- gl_extensions_enable(ctx, "GL_HP_occlusion_test");
- gl_extensions_enable(ctx, "GL_NV_blend_square");
- gl_extensions_enable(ctx, "GL_MESA_sprite_point");
- gl_extensions_enable(ctx, "GL_SGIX_depth_texture");
- gl_extensions_enable(ctx, "GL_SGIX_shadow");
- gl_extensions_enable(ctx, "GL_SGIX_shadow_ambient");
+ 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_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_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_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]);
+ }
+}
+
-int gl_extensions_add( GLcontext *ctx,
- GLboolean enabled,
- const char *name,
- GLboolean *flag_ptr )
+/*
+ * 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 )
{
- if (ctx->Extensions.ext_string == 0) {
+ /* We should never try to add an extension after
+ * _mesa_extensions_get_string() has been called!
+ */
+ assert(ctx->Extensions.ext_string == 0);
+
+ {
struct extension *t = MALLOC_STRUCT(extension);
t->enabled = enabled;
strncpy(t->name, name, MAX_EXT_NAMELEN);
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 == 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;
+ }
if (i->flag)
*(i->flag) = state;
i->enabled = state;
- return 0;
}
-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 )
}
-void gl_extensions_dtr( GLcontext *ctx )
+void
+_mesa_extensions_dtr( GLcontext *ctx )
{
struct extension *i, *nexti;
}
-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++) {
- GLboolean *ptr = 0;
+ GLboolean *ptr = NULL;
if (default_extensions[i].flag_offset)
ptr = base + default_extensions[i].flag_offset;
- gl_extensions_add( ctx,
- default_extensions[i].enabled,
- default_extensions[i].name,
- ptr);
+ (void) _mesa_add_extension( ctx,
+ default_extensions[i].enabled,
+ default_extensions[i].name,
+ ptr);
}
}
-const char *gl_extensions_get_string( GLcontext *ctx )
+const char *
+_mesa_extensions_get_string( GLcontext *ctx )
{
if (ctx->Extensions.ext_string == 0)
{
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