diff options
Diffstat (limited to 'src/mesa/main/extensions.c')
| -rw-r--r-- | src/mesa/main/extensions.c | 893 |
1 files changed, 403 insertions, 490 deletions
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c index 42626152e8e..ca03c09ffec 100644 --- a/src/mesa/main/extensions.c +++ b/src/mesa/main/extensions.c @@ -24,6 +24,12 @@ */ +/** + * \file + * \brief Extension handling + */ + + #include "glheader.h" #include "imports.h" #include "context.h" @@ -31,200 +37,332 @@ #include "mfeatures.h" #include "mtypes.h" +enum { + DISABLE = 0, + GL = 1 << API_OPENGL, + ES1 = 1 << API_OPENGLES, + ES2 = 1 << API_OPENGLES2, +}; -#define F(x) offsetof(struct gl_extensions, x) -#define ON GL_TRUE -#define OFF GL_FALSE +/** + * \brief An element of the \c extension_table. + */ +struct extension { + /** Name of extension, such as "GL_ARB_depth_clamp". */ + const char *name; + /** Offset (in bytes) of the corresponding member in struct gl_extensions. */ + size_t offset; -/* + /** Set of API's in which the extension exists, as a bitset. */ + uint8_t api_set; +}; + + +/** + * Given a member \c x of struct gl_extensions, return offset of + * \c x in bytes. + */ +#define o(x) offsetof(struct gl_extensions, x) + + +/** + * \brief Table of supported OpenGL extensions for all API's. + * * Note: The GL_MESAX_* extensions are placeholders for future ARB extensions. */ -static const struct { - GLboolean enabled; - const char *name; - int flag_offset; -} default_extensions[] = { - { OFF, "GL_ARB_blend_func_extended", F(ARB_blend_func_extended) }, - { ON, "GL_ARB_copy_buffer", F(ARB_copy_buffer) }, - { OFF, "GL_ARB_depth_buffer_float", F(ARB_depth_buffer_float) }, - { OFF, "GL_ARB_depth_clamp", F(ARB_depth_clamp) }, - { OFF, "GL_ARB_depth_texture", F(ARB_depth_texture) }, - { ON, "GL_ARB_draw_buffers", F(ARB_draw_buffers) }, - { OFF, "GL_ARB_draw_elements_base_vertex", F(ARB_draw_elements_base_vertex) }, - { OFF, "GL_ARB_draw_instanced", F(ARB_draw_instanced) }, - { OFF, "GL_ARB_explicit_attrib_location", F(ARB_explicit_attrib_location) }, - { OFF, "GL_ARB_fragment_coord_conventions", F(ARB_fragment_coord_conventions) }, - { OFF, "GL_ARB_fragment_program", F(ARB_fragment_program) }, - { OFF, "GL_ARB_fragment_program_shadow", F(ARB_fragment_program_shadow) }, - { OFF, "GL_ARB_fragment_shader", F(ARB_fragment_shader) }, - { OFF, "GL_ARB_framebuffer_object", F(ARB_framebuffer_object) }, - /* TODO: reenable this when the new GLSL compiler actually supports them */ - /* { OFF, "GL_ARB_geometry_shader4", F(ARB_geometry_shader4) }, */ - { OFF, "GL_ARB_half_float_pixel", F(ARB_half_float_pixel) }, - { OFF, "GL_ARB_half_float_vertex", F(ARB_half_float_vertex) }, - { OFF, "GL_ARB_instanced_arrays", F(ARB_instanced_arrays) }, - { OFF, "GL_ARB_map_buffer_range", F(ARB_map_buffer_range) }, - { ON, "GL_ARB_multisample", F(ARB_multisample) }, - { OFF, "GL_ARB_multitexture", F(ARB_multitexture) }, - { OFF, "GL_ARB_occlusion_query", F(ARB_occlusion_query) }, - { OFF, "GL_ARB_occlusion_query2", F(ARB_occlusion_query2) }, - { OFF, "GL_ARB_pixel_buffer_object", F(EXT_pixel_buffer_object) }, - { OFF, "GL_ARB_point_parameters", F(EXT_point_parameters) }, - { OFF, "GL_ARB_point_sprite", F(ARB_point_sprite) }, - { OFF, "GL_ARB_provoking_vertex", F(EXT_provoking_vertex) }, - { OFF, "GL_ARB_sampler_objects", F(ARB_sampler_objects) }, - { OFF, "GL_ARB_seamless_cube_map", F(ARB_seamless_cube_map) }, - { OFF, "GL_ARB_shader_objects", F(ARB_shader_objects) }, - { OFF, "GL_ARB_shader_stencil_export", F(ARB_shader_stencil_export) }, - { OFF, "GL_ARB_shading_language_100", F(ARB_shading_language_100) }, - { OFF, "GL_ARB_shadow", F(ARB_shadow) }, - { OFF, "GL_ARB_shadow_ambient", F(ARB_shadow_ambient) }, - { OFF, "GL_ARB_sync", F(ARB_sync) }, - { OFF, "GL_ARB_texture_border_clamp", F(ARB_texture_border_clamp) }, - { OFF, "GL_ARB_texture_buffer_object", F(ARB_texture_buffer_object) }, - { ON, "GL_ARB_texture_compression", F(ARB_texture_compression) }, - { OFF, "GL_ARB_texture_compression_rgtc", F(ARB_texture_compression_rgtc) }, - { 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_crossbar", F(ARB_texture_env_crossbar) }, - { OFF, "GL_ARB_texture_env_dot3", F(ARB_texture_env_dot3) }, - { OFF, "GL_MESAX_texture_float", F(ARB_texture_float) }, - { OFF, "GL_ARB_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)}, - { OFF, "GL_ARB_texture_multisample", F(ARB_texture_multisample) }, - { OFF, "GL_ARB_texture_non_power_of_two", F(ARB_texture_non_power_of_two)}, - { OFF, "GL_ARB_texture_rectangle", F(NV_texture_rectangle) }, - { OFF, "GL_ARB_texture_rg", F(ARB_texture_rg) }, - { OFF, "GL_ARB_texture_rgb10_a2ui", F(ARB_texture_rgb10_a2ui) }, - { OFF, "GL_ARB_texture_swizzle", F(EXT_texture_swizzle) }, - { ON, "GL_ARB_transpose_matrix", F(ARB_transpose_matrix) }, - { OFF, "GL_ARB_transform_feedback2", F(ARB_transform_feedback2) }, - { OFF, "GL_ARB_uniform_buffer_object", F(ARB_uniform_buffer_object) }, - { OFF, "GL_ARB_vertex_array_bgra", F(EXT_vertex_array_bgra) }, - { OFF, "GL_ARB_vertex_array_object", F(ARB_vertex_array_object) }, - { ON, "GL_ARB_vertex_buffer_object", F(ARB_vertex_buffer_object) }, - { OFF, "GL_ARB_vertex_program", F(ARB_vertex_program) }, - { OFF, "GL_ARB_vertex_shader", F(ARB_vertex_shader) }, - { OFF, "GL_ARB_vertex_type_2_10_10_10_rev", F(ARB_vertex_type_2_10_10_10_rev) }, - { ON, "GL_ARB_window_pos", F(ARB_window_pos) }, - { ON, "GL_EXT_abgr", F(EXT_abgr) }, - { ON, "GL_EXT_bgra", F(EXT_bgra) }, - { OFF, "GL_EXT_blend_color", F(EXT_blend_color) }, - { OFF, "GL_EXT_blend_equation_separate", F(EXT_blend_equation_separate) }, - { 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) }, - { OFF, "GL_EXT_clip_volume_hint", F(EXT_clip_volume_hint) }, - { ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) }, - { ON, "GL_EXT_copy_texture", F(EXT_copy_texture) }, - { OFF, "GL_EXT_depth_bounds_test", F(EXT_depth_bounds_test) }, - { OFF, "GL_EXT_draw_buffers2", F(EXT_draw_buffers2) }, - { OFF, "GL_EXT_draw_instanced", F(ARB_draw_instanced) }, - { ON, "GL_EXT_draw_range_elements", F(EXT_draw_range_elements) }, - { OFF, "GL_EXT_framebuffer_blit", F(EXT_framebuffer_blit) }, - { OFF, "GL_EXT_framebuffer_multisample", F(EXT_framebuffer_multisample) }, - { OFF, "GL_EXT_framebuffer_object", F(EXT_framebuffer_object) }, - { OFF, "GL_EXT_framebuffer_sRGB", F(EXT_framebuffer_sRGB) }, - { OFF, "GL_EXT_fog_coord", F(EXT_fog_coord) }, - { OFF, "GL_EXT_gpu_program_parameters", F(EXT_gpu_program_parameters) }, - { OFF, "GL_EXT_gpu_shader4", F(EXT_gpu_shader4) }, - { ON, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) }, - { OFF, "GL_EXT_packed_depth_stencil", F(EXT_packed_depth_stencil) }, - { OFF, "GL_EXT_packed_float", F(EXT_packed_float) }, - { ON, "GL_EXT_packed_pixels", F(EXT_packed_pixels) }, - { OFF, "GL_EXT_paletted_texture", F(EXT_paletted_texture) }, - { OFF, "GL_EXT_pixel_buffer_object", F(EXT_pixel_buffer_object) }, - { OFF, "GL_EXT_point_parameters", F(EXT_point_parameters) }, - { ON, "GL_EXT_polygon_offset", F(EXT_polygon_offset) }, - { OFF, "GL_EXT_provoking_vertex", F(EXT_provoking_vertex) }, - { ON, "GL_EXT_rescale_normal", F(EXT_rescale_normal) }, - { OFF, "GL_EXT_secondary_color", F(EXT_secondary_color) }, - { OFF, "GL_EXT_separate_shader_objects", F(EXT_separate_shader_objects) }, - { ON, "GL_EXT_separate_specular_color", F(EXT_separate_specular_color) }, - { OFF, "GL_EXT_shadow_funcs", F(EXT_shadow_funcs) }, - { OFF, "GL_EXT_shared_texture_palette", F(EXT_shared_texture_palette) }, - { OFF, "GL_EXT_stencil_two_side", F(EXT_stencil_two_side) }, - { OFF, "GL_EXT_stencil_wrap", F(EXT_stencil_wrap) }, - { ON, "GL_EXT_subtexture", F(EXT_subtexture) }, - { ON, "GL_EXT_texture", F(EXT_texture) }, - { ON, "GL_EXT_texture3D", F(EXT_texture3D) }, - { OFF, "GL_EXT_texture_array", F(EXT_texture_array) }, - { OFF, "GL_EXT_texture_compression_s3tc", F(EXT_texture_compression_s3tc) }, - { OFF, "GL_EXT_texture_compression_rgtc", F(ARB_texture_compression_rgtc) }, - { OFF, "GL_EXT_texture_cube_map", F(ARB_texture_cube_map) }, - { ON, "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) }, - { OFF, "GL_EXT_texture_integer", F(EXT_texture_integer) }, - { OFF, "GL_EXT_texture_lod_bias", F(EXT_texture_lod_bias) }, - { OFF, "GL_EXT_texture_mirror_clamp", F(EXT_texture_mirror_clamp) }, - { ON, "GL_EXT_texture_object", F(EXT_texture_object) }, - { OFF, "GL_EXT_texture_rectangle", F(NV_texture_rectangle) }, - { OFF, "GL_EXT_texture_shared_exponent", F(EXT_texture_shared_exponent) }, - { OFF, "GL_EXT_texture_sRGB", F(EXT_texture_sRGB) }, - { OFF, "GL_EXT_texture_swizzle", F(EXT_texture_swizzle) }, - { OFF, "GL_EXT_timer_query", F(EXT_timer_query) }, - { OFF, "GL_EXT_transform_feedback", F(EXT_transform_feedback) }, - { ON, "GL_EXT_vertex_array", F(EXT_vertex_array) }, - { OFF, "GL_EXT_vertex_array_bgra", F(EXT_vertex_array_bgra) }, - { OFF, "GL_EXT_vertex_array_set", F(EXT_vertex_array_set) }, - { OFF, "GL_3DFX_texture_compression_FXT1", F(TDFX_texture_compression_FXT1) }, - { OFF, "GL_APPLE_client_storage", F(APPLE_client_storage) }, - { ON, "GL_APPLE_packed_pixels", F(APPLE_packed_pixels) }, - { OFF, "GL_APPLE_vertex_array_object", F(APPLE_vertex_array_object) }, - { OFF, "GL_APPLE_object_purgeable", F(APPLE_object_purgeable) }, - { OFF, "GL_ATI_blend_equation_separate", F(EXT_blend_equation_separate) }, - { OFF, "GL_ATI_envmap_bumpmap", F(ATI_envmap_bumpmap) }, - { OFF, "GL_ATI_texture_env_combine3", F(ATI_texture_env_combine3)}, - { OFF, "GL_ATI_texture_mirror_once", F(ATI_texture_mirror_once)}, - { OFF, "GL_ATI_fragment_shader", F(ATI_fragment_shader)}, - { OFF, "GL_ATI_separate_stencil", F(ATI_separate_stencil)}, - { ON, "GL_IBM_multimode_draw_arrays", F(IBM_multimode_draw_arrays) }, - { ON, "GL_IBM_rasterpos_clip", F(IBM_rasterpos_clip) }, - { OFF, "GL_IBM_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)}, - { OFF, "GL_INGR_blend_func_separate", F(EXT_blend_func_separate) }, - { OFF, "GL_MESA_pack_invert", F(MESA_pack_invert) }, - { OFF, "GL_MESA_resize_buffers", F(MESA_resize_buffers) }, - { OFF, "GL_MESA_texture_array", F(MESA_texture_array) }, - { OFF, "GL_MESA_texture_signed_rgba", F(MESA_texture_signed_rgba) }, - { OFF, "GL_MESA_ycbcr_texture", F(MESA_ycbcr_texture) }, - { ON, "GL_MESA_window_pos", F(ARB_window_pos) }, - { OFF, "GL_NV_blend_square", F(NV_blend_square) }, - { OFF, "GL_NV_conditional_render", F(NV_conditional_render) }, - { OFF, "GL_NV_depth_clamp", F(ARB_depth_clamp) }, - { OFF, "GL_NV_fragment_program", F(NV_fragment_program) }, - { OFF, "GL_NV_fragment_program_option", F(NV_fragment_program_option) }, - { ON, "GL_NV_light_max_exponent", F(NV_light_max_exponent) }, - { OFF, "GL_NV_packed_depth_stencil", F(EXT_packed_depth_stencil) }, - { OFF, "GL_NV_point_sprite", F(NV_point_sprite) }, - { OFF, "GL_NV_primitive_restart", F(NV_primitive_restart) }, - { ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) }, - { OFF, "GL_NV_texture_env_combine4", F(NV_texture_env_combine4) }, - { OFF, "GL_NV_texture_rectangle", F(NV_texture_rectangle) }, - { OFF, "GL_NV_vertex_program", F(NV_vertex_program) }, - { OFF, "GL_NV_vertex_program1_1", F(NV_vertex_program1_1) }, - { ON, "GL_OES_read_format", F(OES_read_format) }, - { OFF, "GL_SGI_texture_color_table", F(SGI_texture_color_table) }, - { ON, "GL_SGIS_generate_mipmap", F(SGIS_generate_mipmap) }, - { OFF, "GL_SGIS_texture_border_clamp", F(ARB_texture_border_clamp) }, - { ON, "GL_SGIS_texture_edge_clamp", F(SGIS_texture_edge_clamp) }, - { ON, "GL_SGIS_texture_lod", F(SGIS_texture_lod) }, - { ON, "GL_SUN_multi_draw_arrays", F(EXT_multi_draw_arrays) }, - { OFF, "GL_S3_s3tc", F(S3_s3tc) }, - { OFF, "GL_EXT_texture_format_BGRA8888", F(EXT_texture_format_BGRA8888) }, -#if FEATURE_OES_EGL_image - { OFF, "GL_OES_EGL_image", F(OES_EGL_image) }, -#endif +static const struct extension extension_table[] = { + /* ARB Extensions */ + { "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL }, + { "GL_ARB_copy_buffer", o(ARB_copy_buffer), GL }, + { "GL_ARB_depth_buffer_float", o(ARB_depth_buffer_float), GL }, + { "GL_ARB_depth_clamp", o(ARB_depth_clamp), GL }, + { "GL_ARB_depth_texture", o(ARB_depth_texture), GL }, + { "GL_ARB_draw_buffers", o(ARB_draw_buffers), GL }, + { "GL_ARB_draw_elements_base_vertex", o(ARB_draw_elements_base_vertex), GL }, + { "GL_ARB_draw_instanced", o(ARB_draw_instanced), GL }, + { "GL_ARB_explicit_attrib_location", o(ARB_explicit_attrib_location), GL }, + { "GL_ARB_fragment_coord_conventions", o(ARB_fragment_coord_conventions), GL }, + { "GL_ARB_fragment_program", o(ARB_fragment_program), GL }, + { "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GL }, + { "GL_ARB_fragment_shader", o(ARB_fragment_shader), GL }, + { "GL_ARB_framebuffer_object", o(ARB_framebuffer_object), GL }, + { "GL_ARB_half_float_pixel", o(ARB_half_float_pixel), GL }, + { "GL_ARB_half_float_vertex", o(ARB_half_float_vertex), GL }, + { "GL_ARB_instanced_arrays", o(ARB_instanced_arrays), GL }, + { "GL_ARB_map_buffer_range", o(ARB_map_buffer_range), GL }, + { "GL_ARB_multisample", o(ARB_multisample), GL }, + { "GL_ARB_multitexture", o(ARB_multitexture), GL }, + { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL }, + { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GL }, + { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL }, + { "GL_ARB_point_parameters", o(EXT_point_parameters), GL }, + { "GL_ARB_point_sprite", o(ARB_point_sprite), GL }, + { "GL_ARB_provoking_vertex", o(EXT_provoking_vertex), GL }, + { "GL_ARB_sampler_objects", o(ARB_sampler_objects), GL }, + { "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL }, + { "GL_ARB_shader_objects", o(ARB_shader_objects), GL }, + { "GL_ARB_shader_stencil_export", o(ARB_shader_stencil_export), GL }, + { "GL_ARB_shading_language_100", o(ARB_shading_language_100), GL }, + { "GL_ARB_shadow_ambient", o(ARB_shadow_ambient), GL }, + { "GL_ARB_shadow", o(ARB_shadow), GL }, + { "GL_ARB_sync", o(ARB_sync), GL }, + { "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GL }, + { "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GL }, + { "GL_ARB_texture_compression", o(ARB_texture_compression), GL }, + { "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL }, + { "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GL }, + { "GL_ARB_texture_env_add", o(EXT_texture_env_add), GL }, + { "GL_ARB_texture_env_combine", o(ARB_texture_env_combine), GL }, + { "GL_ARB_texture_env_crossbar", o(ARB_texture_env_crossbar), GL }, + { "GL_ARB_texture_env_dot3", o(ARB_texture_env_dot3), GL }, + { "GL_ARB_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL }, + { "GL_ARB_texture_multisample", o(ARB_texture_multisample), GL }, + { "GL_ARB_texture_non_power_of_two", o(ARB_texture_non_power_of_two), GL }, + { "GL_ARB_texture_rectangle", o(NV_texture_rectangle), GL }, + { "GL_ARB_texture_rgb10_a2ui", o(ARB_texture_rgb10_a2ui), GL }, + { "GL_ARB_texture_rg", o(ARB_texture_rg), GL }, + { "GL_ARB_texture_swizzle", o(EXT_texture_swizzle), GL }, + { "GL_ARB_transform_feedback2", o(ARB_transform_feedback2), GL }, + { "GL_ARB_transpose_matrix", o(ARB_transpose_matrix), GL }, + { "GL_ARB_uniform_buffer_object", o(ARB_uniform_buffer_object), GL }, + { "GL_ARB_vertex_array_bgra", o(EXT_vertex_array_bgra), GL }, + { "GL_ARB_vertex_array_object", o(ARB_vertex_array_object), GL }, + { "GL_ARB_vertex_buffer_object", o(ARB_vertex_buffer_object), GL }, + { "GL_ARB_vertex_program", o(ARB_vertex_program), GL }, + { "GL_ARB_vertex_shader", o(ARB_vertex_shader), GL }, + { "GL_ARB_vertex_type_2_10_10_10_rev", o(ARB_vertex_type_2_10_10_10_rev), GL }, + { "GL_ARB_window_pos", o(ARB_window_pos), GL }, + + /* EXT extensions */ + { "GL_EXT_abgr", o(EXT_abgr), GL }, + { "GL_EXT_bgra", o(EXT_bgra), GL }, + { "GL_EXT_blend_color", o(EXT_blend_color), GL }, + { "GL_EXT_blend_equation_separate", o(EXT_blend_equation_separate), GL }, + { "GL_EXT_blend_func_separate", o(EXT_blend_func_separate), GL }, + { "GL_EXT_blend_logic_op", o(EXT_blend_logic_op), GL }, + { "GL_EXT_blend_minmax", o(EXT_blend_minmax), GL | ES1 | ES2 }, + { "GL_EXT_blend_subtract", o(EXT_blend_subtract), GL }, + { "GL_EXT_clip_volume_hint", o(EXT_clip_volume_hint), GL }, + { "GL_EXT_compiled_vertex_array", o(EXT_compiled_vertex_array), GL }, + { "GL_EXT_copy_texture", o(EXT_copy_texture), GL }, + { "GL_EXT_depth_bounds_test", o(EXT_depth_bounds_test), GL }, + { "GL_EXT_draw_buffers2", o(EXT_draw_buffers2), GL }, + { "GL_EXT_draw_instanced", o(ARB_draw_instanced), GL }, + { "GL_EXT_draw_range_elements", o(EXT_draw_range_elements), GL }, + { "GL_EXT_fog_coord", o(EXT_fog_coord), GL }, + { "GL_EXT_framebuffer_blit", o(EXT_framebuffer_blit), GL }, + { "GL_EXT_framebuffer_multisample", o(EXT_framebuffer_multisample), GL }, + { "GL_EXT_framebuffer_object", o(EXT_framebuffer_object), GL }, + { "GL_EXT_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL }, + { "GL_EXT_gpu_program_parameters", o(EXT_gpu_program_parameters), GL }, + { "GL_EXT_gpu_shader4", o(EXT_gpu_shader4), GL }, + { "GL_EXT_multi_draw_arrays", o(EXT_multi_draw_arrays), GL | ES1 | ES2 }, + { "GL_EXT_packed_depth_stencil", o(EXT_packed_depth_stencil), GL }, + { "GL_EXT_packed_float", o(EXT_packed_float), GL }, + { "GL_EXT_packed_pixels", o(EXT_packed_pixels), GL }, + { "GL_EXT_paletted_texture", o(EXT_paletted_texture), GL }, + { "GL_EXT_pixel_buffer_object", o(EXT_pixel_buffer_object), GL }, + { "GL_EXT_point_parameters", o(EXT_point_parameters), GL }, + { "GL_EXT_polygon_offset", o(EXT_polygon_offset), GL }, + { "GL_EXT_provoking_vertex", o(EXT_provoking_vertex), GL }, + { "GL_EXT_rescale_normal", o(EXT_rescale_normal), GL }, + { "GL_EXT_secondary_color", o(EXT_secondary_color), GL }, + { "GL_EXT_separate_shader_objects", o(EXT_separate_shader_objects), GL }, + { "GL_EXT_separate_specular_color", o(EXT_separate_specular_color), GL }, + { "GL_EXT_shadow_funcs", o(EXT_shadow_funcs), GL }, + { "GL_EXT_shared_texture_palette", o(EXT_shared_texture_palette), GL }, + { "GL_EXT_stencil_two_side", o(EXT_stencil_two_side), GL }, + { "GL_EXT_stencil_wrap", o(EXT_stencil_wrap), GL }, + { "GL_EXT_subtexture", o(EXT_subtexture), GL }, + { "GL_EXT_texture3D", o(EXT_texture3D), GL }, + { "GL_EXT_texture_array", o(EXT_texture_array), GL }, + { "GL_EXT_texture_compression_dxt1", o(EXT_texture_compression_s3tc), GL | ES1 | ES2 }, + { "GL_EXT_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL }, + { "GL_EXT_texture_compression_s3tc", o(EXT_texture_compression_s3tc), GL }, + { "GL_EXT_texture_cube_map", o(ARB_texture_cube_map), GL }, + { "GL_EXT_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL }, + { "GL_EXT_texture_env_add", o(EXT_texture_env_add), GL }, + { "GL_EXT_texture_env_combine", o(EXT_texture_env_combine), GL }, + { "GL_EXT_texture_env_dot3", o(EXT_texture_env_dot3), GL }, + { "GL_EXT_texture_filter_anisotropic", o(EXT_texture_filter_anisotropic), GL | ES1 | ES2 }, + { "GL_EXT_texture_format_BGRA8888", o(EXT_texture_format_BGRA8888), ES1 | ES2 }, + { "GL_EXT_texture_integer", o(EXT_texture_integer), GL }, + { "GL_EXT_texture_lod_bias", o(EXT_texture_lod_bias), GL | ES1 }, + { "GL_EXT_texture_mirror_clamp", o(EXT_texture_mirror_clamp), GL }, + { "GL_EXT_texture_object", o(EXT_texture_object), GL }, + { "GL_EXT_texture", o(EXT_texture), GL }, + { "GL_EXT_texture_rectangle", o(NV_texture_rectangle), GL }, + { "GL_EXT_texture_shared_exponent", o(EXT_texture_shared_exponent), GL }, + { "GL_EXT_texture_sRGB", o(EXT_texture_sRGB), GL }, + { "GL_EXT_texture_swizzle", o(EXT_texture_swizzle), GL }, + { "GL_EXT_texture_type_2_10_10_10_REV", o(dummy_true), ES2 }, + { "GL_EXT_timer_query", o(EXT_timer_query), GL }, + { "GL_EXT_transform_feedback", o(EXT_transform_feedback), GL }, + { "GL_EXT_vertex_array_bgra", o(EXT_vertex_array_bgra), GL }, + { "GL_EXT_vertex_array", o(EXT_vertex_array), GL }, + { "GL_EXT_vertex_array_set", o(EXT_vertex_array_set), GL }, + + /* OES extensions */ + { "GL_OES_blend_equation_separate", o(EXT_blend_equation_separate), ES1 }, + { "GL_OES_blend_func_separate", o(EXT_blend_func_separate), ES1 }, + { "GL_OES_blend_subtract", o(EXT_blend_subtract), ES1 }, + { "GL_OES_byte_coordinates", o(dummy_true), ES1 }, + { "GL_OES_compressed_paletted_texture", o(dummy_true), ES1 }, + { "GL_OES_depth24", o(ARB_framebuffer_object), ES1 | ES2 }, + { "GL_OES_depth32", o(ARB_framebuffer_object), ES1 | ES2 }, + { "GL_OES_depth_texture", o(ARB_depth_texture), ES2 }, #if FEATURE_OES_draw_texture - { OFF, "GL_OES_draw_texture", F(OES_draw_texture) }, -#endif /* FEATURE_OES_draw_texture */ + { "GL_OES_draw_texture", o(OES_draw_texture), ES1 | ES2 }, +#endif +#if FEATURE_OES_EGL_image + /* FIXME: Mesa expects GL_OES_EGL_image to be available in OpenGL contexts. */ + { "GL_OES_EGL_image", o(OES_EGL_image), GL | ES1 | ES2 }, +#endif + { "GL_OES_element_index_uint", o(EXT_vertex_array), ES1 | ES2 }, + { "GL_OES_fbo_render_mipmap", o(ARB_framebuffer_object), ES1 | ES2 }, + { "GL_OES_fixed_point", o(dummy_true), ES1 }, + { "GL_OES_framebuffer_object", o(ARB_framebuffer_object), ES1 }, + { "GL_OES_mapbuffer", o(ARB_vertex_buffer_object), ES1 | ES2 }, + { "GL_OES_matrix_get", o(dummy_true), ES1 }, + { "GL_OES_packed_depth_stencil", o(EXT_packed_depth_stencil), ES1 | ES2 }, + { "GL_OES_point_size_array", o(dummy_true), ES1 }, + { "GL_OES_point_sprite", o(dummy_true), ES1 }, + { "GL_OES_query_matrix", o(dummy_true), ES1 }, + { "GL_OES_read_format", o(OES_read_format), GL | ES1 }, + { "GL_OES_rgb8_rgba8", o(ARB_framebuffer_object), ES1 | ES2 }, + { "GL_OES_single_precision", o(dummy_true), ES1 }, + { "GL_OES_standard_derivatives", o(ARB_fragment_shader), ES2 }, + { "GL_OES_stencil1", o(ARB_framebuffer_object), ES1 | ES2 }, + { "GL_OES_stencil4", o(ARB_framebuffer_object), ES1 | ES2 }, + { "GL_OES_stencil8", o(ARB_framebuffer_object), ES1 }, + { "GL_OES_stencil_wrap", o(EXT_stencil_wrap), ES1 }, + /* GL_OES_texture_3D is disabled due to missing GLSL support. */ + { "GL_OES_texture_3D", o(EXT_texture3D), DISABLE }, + { "GL_OES_texture_cube_map", o(ARB_texture_cube_map), ES1 }, + { "GL_OES_texture_env_crossbar", o(ARB_texture_env_crossbar), ES1 }, + { "GL_OES_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), ES1 }, + { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES2 }, + + /* Vendor extensions */ + { "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL }, + { "GL_APPLE_client_storage", o(APPLE_client_storage), GL }, + { "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL }, + { "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GL }, + { "GL_APPLE_vertex_array_object", o(APPLE_vertex_array_object), GL }, + { "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL }, + { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GL }, + { "GL_ATI_fragment_shader", o(ATI_fragment_shader), GL }, + { "GL_ATI_separate_stencil", o(ATI_separate_stencil), GL }, + { "GL_ATI_texture_env_combine3", o(ATI_texture_env_combine3), GL }, + { "GL_ATI_texture_mirror_once", o(ATI_texture_mirror_once), GL }, + { "GL_IBM_multimode_draw_arrays", o(IBM_multimode_draw_arrays), GL }, + { "GL_IBM_rasterpos_clip", o(IBM_rasterpos_clip), GL }, + { "GL_IBM_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL }, + { "GL_INGR_blend_func_separate", o(EXT_blend_func_separate), GL }, + { "GL_MESA_pack_invert", o(MESA_pack_invert), GL }, + { "GL_MESA_resize_buffers", o(MESA_resize_buffers), GL }, + { "GL_MESA_texture_array", o(MESA_texture_array), GL }, + { "GL_MESA_texture_signed_rgba", o(MESA_texture_signed_rgba), GL }, + { "GL_MESA_window_pos", o(ARB_window_pos), GL }, + { "GL_MESAX_texture_float", o(ARB_texture_float), GL }, + { "GL_MESA_ycbcr_texture", o(MESA_ycbcr_texture), GL }, + { "GL_NV_blend_square", o(NV_blend_square), GL }, + { "GL_NV_conditional_render", o(NV_conditional_render), GL }, + { "GL_NV_depth_clamp", o(ARB_depth_clamp), GL }, + { "GL_NV_fragment_program", o(NV_fragment_program), GL }, + { "GL_NV_fragment_program_option", o(NV_fragment_program_option), GL }, + { "GL_NV_light_max_exponent", o(NV_light_max_exponent), GL }, + { "GL_NV_packed_depth_stencil", o(EXT_packed_depth_stencil), GL }, + { "GL_NV_point_sprite", o(NV_point_sprite), GL }, + { "GL_NV_primitive_restart", o(NV_primitive_restart), GL }, + { "GL_NV_texgen_reflection", o(NV_texgen_reflection), GL }, + { "GL_NV_texture_env_combine4", o(NV_texture_env_combine4), GL }, + { "GL_NV_texture_rectangle", o(NV_texture_rectangle), GL }, + { "GL_NV_vertex_program1_1", o(NV_vertex_program1_1), GL }, + { "GL_NV_vertex_program", o(NV_vertex_program), GL }, + { "GL_S3_s3tc", o(S3_s3tc), GL }, + { "GL_SGIS_generate_mipmap", o(SGIS_generate_mipmap), GL }, + { "GL_SGIS_texture_border_clamp", o(ARB_texture_border_clamp), GL }, + { "GL_SGIS_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL }, + { "GL_SGIS_texture_lod", o(SGIS_texture_lod), GL }, + { "GL_SGI_texture_color_table", o(SGI_texture_color_table), GL }, + { "GL_SUN_multi_draw_arrays", o(EXT_multi_draw_arrays), GL }, + + { 0, 0, 0 }, }; +/** + * Given an extension name, lookup up the corresponding member of struct + * gl_extensions and return that member's offset (in bytes). If the name is + * not found in the \c extension_table, return 0. + * + * \param name Name of extension. + * \return Offset of member in struct gl_extensions. + */ +static size_t +name_to_offset(const char* name) +{ + if (name == 0) + return 0; + + for (const struct extension *i = extension_table; i->name != 0; ++i) { + if (strcmp(name, i->name) == 0) + return i->offset; + } + + return 0; +} + + +/** + * \brief Extensions enabled by default. + * + * These extensions are enabled by _mesa_init_extensions(). + * + * XXX: Should these defaults also apply to GLES? + */ +static const size_t default_extensions[] = { + o(ARB_copy_buffer), + o(ARB_draw_buffers), + o(ARB_multisample), + o(ARB_texture_compression), + o(ARB_transpose_matrix), + o(ARB_vertex_buffer_object), + o(ARB_window_pos), + + o(EXT_abgr), + o(EXT_bgra), + o(EXT_compiled_vertex_array), + o(EXT_copy_texture), + o(EXT_draw_range_elements), + o(EXT_multi_draw_arrays), + o(EXT_packed_pixels), + o(EXT_polygon_offset), + o(EXT_rescale_normal), + o(EXT_separate_specular_color), + o(EXT_subtexture), + o(EXT_texture), + o(EXT_texture3D), + o(EXT_texture_object), + o(EXT_vertex_array), + + o(OES_read_format), + + /* Vendor Extensions */ + o(APPLE_packed_pixels), + o(IBM_multimode_draw_arrays), + o(IBM_rasterpos_clip), + o(NV_light_max_exponent), + o(NV_texgen_reflection), + o(SGIS_generate_mipmap), + o(SGIS_texture_edge_clamp), + o(SGIS_texture_lod), + + 0, +}; + /** * Enable all extensions suitable for a software-only renderer. @@ -513,25 +651,26 @@ _mesa_enable_2_1_extensions(struct gl_context *ctx) static GLboolean set_extension( struct gl_context *ctx, const char *name, GLboolean state ) { - GLboolean *base = (GLboolean *) &ctx->Extensions; - GLuint i; - if (ctx->Extensions.String) { /* The string was already queried - can't change it now! */ _mesa_problem(ctx, "Trying to enable/disable extension after glGetString(GL_EXTENSIONS): %s", name); return GL_FALSE; } - for (i = 0 ; i < Elements(default_extensions) ; i++) { - if (strcmp(default_extensions[i].name, name) == 0) { - if (default_extensions[i].flag_offset) { - GLboolean *enabled = base + default_extensions[i].flag_offset; - *enabled = state; - } - return GL_TRUE; - } + size_t offset = name_to_offset(name); + if (offset == 0) { + _mesa_problem(ctx, "Trying to enable/disable unknown extension %s", + name); + return GL_FALSE; + } else if (offset == o(dummy_true) && state == GL_FALSE) { + _mesa_problem(ctx, "Trying to disable a permanently enabled extension: " + "%s", name); + return GL_FALSE; + } else { + GLboolean *base = (GLboolean *) &ctx->Extensions; + base[offset] = state; + return GL_TRUE; } - return GL_FALSE; } @@ -560,36 +699,19 @@ _mesa_disable_extension( struct gl_context *ctx, const char *name ) /** - * Check if the i-th extension is enabled. - */ -static GLboolean -extension_enabled(struct gl_context *ctx, GLuint index) -{ - const GLboolean *base = (const GLboolean *) &ctx->Extensions; - if (!default_extensions[index].flag_offset || - *(base + default_extensions[index].flag_offset)) { - return GL_TRUE; - } - else { - return GL_FALSE; - } -} - - -/** * Test if the named extension is enabled in this context. */ GLboolean _mesa_extension_is_enabled( struct gl_context *ctx, const char *name ) { - GLuint i; + if (name == 0) + return GL_FALSE; - for (i = 0 ; i < Elements(default_extensions) ; i++) { - if (strcmp(default_extensions[i].name, name) == 0) { - return extension_enabled(ctx, i); - } - } - return GL_FALSE; + size_t offset = name_to_offset(name); + if (offset == 0) + return GL_FALSE; + GLboolean *base = (GLboolean *) &ctx->Extensions; + return base[offset]; } @@ -620,8 +742,10 @@ append(const char *a, const char *b) * For extension names that are recognized, turn them on. For extension * names that are recognized and prefixed with '-', turn them off. * Return a string of the unknown/leftover names. + * + * Returnd string needs to be freed. */ -static const char * +static char * get_extension_override( struct gl_context *ctx ) { const char *envExt = _mesa_getenv("MESA_EXTENSION_OVERRIDE"); @@ -668,22 +792,25 @@ get_extension_override( struct gl_context *ctx ) /** - * Run through the default_extensions array above and set the - * ctx->Extensions.ARB/EXT_* flags accordingly. - * To be called during context initialization. + * \brief Initialize extension tables and enable default extensions. + * + * This should be called during context initialization. + * Note: Sets gl_extensions.dummy_true to true. */ void _mesa_init_extensions( struct gl_context *ctx ) { GLboolean *base = (GLboolean *) &ctx->Extensions; - GLuint i; + GLboolean *sentinel = base + o(extension_sentinel); - for (i = 0 ; i < Elements(default_extensions) ; i++) { - if (default_extensions[i].enabled && - default_extensions[i].flag_offset) { - *(base + default_extensions[i].flag_offset) = GL_TRUE; - } - } + /* First, turn all extensions off. */ + for (GLboolean *i = base; i != sentinel; ++i) + *i = GL_FALSE; + + /* Then, selectively turn default extensions on. */ + ctx->Extensions.dummy_true = GL_TRUE; + for (const size_t *i = default_extensions; *i != 0; ++i) + base[*i] = GL_TRUE; } @@ -691,256 +818,45 @@ _mesa_init_extensions( struct gl_context *ctx ) * Construct the GL_EXTENSIONS string. Called the first time that * glGetString(GL_EXTENSIONS) is called. */ -static GLubyte * -compute_extensions( struct gl_context *ctx ) +GLubyte* +_mesa_make_extension_string(struct gl_context *ctx) { - const char *extraExt = get_extension_override(ctx); - GLuint extStrLen = 0; - char *s; - GLuint i; + /* The extension string. */ + char *exts = 0; + /* Length of extension string. */ + size_t length = 0; + /* String of extra extensions. */ + char *extra_extensions = get_extension_override(ctx); + GLboolean *base = (GLboolean *) &ctx->Extensions; - /* first, compute length of the extension string */ - for (i = 0 ; i < Elements(default_extensions) ; i++) { - if (extension_enabled(ctx, i)) { - extStrLen += (GLuint) strlen(default_extensions[i].name) + 1; + /* Compute length of the extension string. */ + for (const struct extension *i = extension_table; i->name != 0; ++i) { + if (base[i->offset] && (i->api_set & (1 << ctx->API))) { + length += strlen(i->name) + 1; /* +1 for space */ } } + if (extra_extensions != NULL) + length += 1 + strlen(extra_extensions); /* +1 for space */ - if (extraExt) - extStrLen += strlen(extraExt) + 1; /* +1 for space */ - - /* allocate the extension string */ - s = (char *) malloc(extStrLen); - if (!s) + exts = (char *) calloc(length + 1, sizeof(char)); + if (exts == NULL) { + free(extra_extensions); return NULL; - - /* second, build the extension string */ - extStrLen = 0; - for (i = 0 ; i < Elements(default_extensions) ; i++) { - if (extension_enabled(ctx, i)) { - GLuint len = (GLuint) strlen(default_extensions[i].name); - memcpy(s + extStrLen, default_extensions[i].name, len); - extStrLen += len; - s[extStrLen] = ' '; - extStrLen++; - } - } - ASSERT(extStrLen > 0); - - s[extStrLen - 1] = 0; /* -1 to overwrite trailing the ' ' */ - - if (extraExt) { - s = append(s, " "); - s = append(s, extraExt); - } - - return (GLubyte *) s; -} - -static size_t -append_extension(GLubyte **str, const char *ext) -{ - GLubyte *s = *str; - size_t len = strlen(ext); - - if (s) { - memcpy(s, ext, len); - s[len++] = ' '; - s[len] = '\0'; - - *str += len; - } - else { - len++; } - return len; -} - - -static size_t -make_extension_string_es1(const struct gl_context *ctx, GLubyte *str) -{ - size_t len = 0; - - /* Core additions */ - len += append_extension(&str, "GL_OES_byte_coordinates"); - len += append_extension(&str, "GL_OES_fixed_point"); - len += append_extension(&str, "GL_OES_single_precision"); - len += append_extension(&str, "GL_OES_matrix_get"); - - /* 1.1 required extensions */ - len += append_extension(&str, "GL_OES_read_format"); - len += append_extension(&str, "GL_OES_compressed_paletted_texture"); - len += append_extension(&str, "GL_OES_point_size_array"); - len += append_extension(&str, "GL_OES_point_sprite"); - - /* 1.1 deprecated extensions */ - len += append_extension(&str, "GL_OES_query_matrix"); - -#if FEATURE_OES_draw_texture - if (ctx->Extensions.OES_draw_texture) - len += append_extension(&str, "GL_OES_draw_texture"); -#endif - - if (ctx->Extensions.EXT_blend_equation_separate) - len += append_extension(&str, "GL_OES_blend_equation_separate"); - if (ctx->Extensions.EXT_blend_func_separate) - len += append_extension(&str, "GL_OES_blend_func_separate"); - if (ctx->Extensions.EXT_blend_subtract) - len += append_extension(&str, "GL_OES_blend_subtract"); - - if (ctx->Extensions.EXT_stencil_wrap) - len += append_extension(&str, "GL_OES_stencil_wrap"); - - if (ctx->Extensions.ARB_texture_cube_map) - len += append_extension(&str, "GL_OES_texture_cube_map"); - if (ctx->Extensions.ARB_texture_env_crossbar) - len += append_extension(&str, "GL_OES_texture_env_crossbar"); - if (ctx->Extensions.ARB_texture_mirrored_repeat) - len += append_extension(&str, "GL_OES_texture_mirrored_repeat"); - - if (ctx->Extensions.ARB_framebuffer_object) { - len += append_extension(&str, "GL_OES_framebuffer_object"); - len += append_extension(&str, "GL_OES_depth24"); - len += append_extension(&str, "GL_OES_depth32"); - len += append_extension(&str, "GL_OES_fbo_render_mipmap"); - len += append_extension(&str, "GL_OES_rgb8_rgba8"); - len += append_extension(&str, "GL_OES_stencil1"); - len += append_extension(&str, "GL_OES_stencil4"); - len += append_extension(&str, "GL_OES_stencil8"); + /* Build the extension string.*/ + for (const struct extension *i = extension_table; i->name != 0; ++i) { + if (base[i->offset] && (i->api_set & (1 << ctx->API))) { + strcat(exts, i->name); + strcat(exts, " "); + } } - - if (ctx->Extensions.EXT_vertex_array) - len += append_extension(&str, "GL_OES_element_index_uint"); - if (ctx->Extensions.ARB_vertex_buffer_object) - len += append_extension(&str, "GL_OES_mapbuffer"); - if (ctx->Extensions.EXT_texture_filter_anisotropic) - len += append_extension(&str, "GL_EXT_texture_filter_anisotropic"); - - /* some applications check this for NPOT support */ - if (ctx->Extensions.ARB_texture_non_power_of_two) - len += append_extension(&str, "GL_ARB_texture_non_power_of_two"); - - if (ctx->Extensions.EXT_texture_compression_s3tc) - len += append_extension(&str, "GL_EXT_texture_compression_dxt1"); - if (ctx->Extensions.EXT_texture_lod_bias) - len += append_extension(&str, "GL_EXT_texture_lod_bias"); - if (ctx->Extensions.EXT_blend_minmax) - len += append_extension(&str, "GL_EXT_blend_minmax"); - if (ctx->Extensions.EXT_multi_draw_arrays) - len += append_extension(&str, "GL_EXT_multi_draw_arrays"); - -#if FEATURE_OES_EGL_image - if (ctx->Extensions.OES_EGL_image) - len += append_extension(&str, "GL_OES_EGL_image"); -#endif - - return len; -} - - -static GLubyte * -compute_extensions_es1(const struct gl_context *ctx) -{ - GLubyte *s; - unsigned int len; - - len = make_extension_string_es1(ctx, NULL); - s = malloc(len + 1); - if (!s) - return NULL; - make_extension_string_es1(ctx, s); - - return s; -} - -static size_t -make_extension_string_es2(const struct gl_context *ctx, GLubyte *str) -{ - size_t len = 0; - - if (ctx->Extensions.ARB_framebuffer_object) { - len += append_extension(&str, "GL_OES_depth24"); - len += append_extension(&str, "GL_OES_depth32"); - len += append_extension(&str, "GL_OES_fbo_render_mipmap"); - len += append_extension(&str, "GL_OES_rgb8_rgba8"); - len += append_extension(&str, "GL_OES_stencil1"); - len += append_extension(&str, "GL_OES_stencil4"); + if (extra_extensions != 0) { + strcat(exts, extra_extensions); + free(extra_extensions); } - if (ctx->Extensions.EXT_vertex_array) - len += append_extension(&str, "GL_OES_element_index_uint"); - if (ctx->Extensions.ARB_vertex_buffer_object) - len += append_extension(&str, "GL_OES_mapbuffer"); - -#if 0 - /* disabled because of missing GLSL support */ - if (ctx->Extensions.EXT_texture3D) - len += append_extension(&str, "GL_OES_texture_3D"); -#endif - - if (ctx->Extensions.ARB_texture_non_power_of_two) - len += append_extension(&str, "GL_OES_texture_npot"); - if (ctx->Extensions.EXT_texture_filter_anisotropic) - len += append_extension(&str, "GL_EXT_texture_filter_anisotropic"); - - len += append_extension(&str, "GL_EXT_texture_type_2_10_10_10_REV"); - if (ctx->Extensions.ARB_depth_texture) - len += append_extension(&str, "GL_OES_depth_texture"); - if (ctx->Extensions.EXT_packed_depth_stencil) - len += append_extension(&str, "GL_OES_packed_depth_stencil"); - if (ctx->Extensions.ARB_fragment_shader) - len += append_extension(&str, "GL_OES_standard_derivatives"); - - if (ctx->Extensions.EXT_texture_compression_s3tc) - len += append_extension(&str, "GL_EXT_texture_compression_dxt1"); - if (ctx->Extensions.EXT_blend_minmax) - len += append_extension(&str, "GL_EXT_blend_minmax"); - if (ctx->Extensions.EXT_multi_draw_arrays) - len += append_extension(&str, "GL_EXT_multi_draw_arrays"); - -#if FEATURE_OES_EGL_image - if (ctx->Extensions.OES_EGL_image) - len += append_extension(&str, "GL_OES_EGL_image"); -#endif - - if (ctx->Extensions.EXT_texture_format_BGRA8888) - len += append_extension(&str, "GL_EXT_texture_format_BGRA8888"); - - return len; -} - -static GLubyte * -compute_extensions_es2(struct gl_context *ctx) -{ - GLubyte *s; - unsigned int len; - - len = make_extension_string_es2(ctx, NULL); - s = malloc(len + 1); - if (!s) - return NULL; - make_extension_string_es2(ctx, s); - - return s; -} - - -GLubyte * -_mesa_make_extension_string(struct gl_context *ctx) -{ - switch (ctx->API) { - case API_OPENGL: - return compute_extensions(ctx); - case API_OPENGLES2: - return compute_extensions_es2(ctx); - case API_OPENGLES: - return compute_extensions_es1(ctx); - default: - assert(0); - return NULL; - } + return (GLubyte *) exts; } /** @@ -949,38 +865,35 @@ _mesa_make_extension_string(struct gl_context *ctx) GLuint _mesa_get_extension_count(struct gl_context *ctx) { - GLuint i; - /* only count once */ - if (!ctx->Extensions.Count) { - for (i = 0; i < Elements(default_extensions); i++) { - if (extension_enabled(ctx, i)) { - ctx->Extensions.Count++; - } + if (ctx->Extensions.Count != 0) + return ctx->Extensions.Count; + + GLboolean *base = (GLboolean *) &ctx->Extensions; + for (const struct extension *i = extension_table; i->name != 0; ++i) { + if (base[i->offset]) { + ctx->Extensions.Count++; } } - - if (0) - _mesa_debug(ctx, "%u of %d extensions enabled\n", ctx->Extensions.Count, - (int) Elements(default_extensions)); - return ctx->Extensions.Count; } - /** * Return name of i-th enabled extension */ const GLubyte * _mesa_get_enabled_extension(struct gl_context *ctx, GLuint index) { - GLuint i; + if (index < 0) + return NULL; - for (i = 0; i < Elements(default_extensions); i++) { - if (extension_enabled(ctx, i)) { - if (index == 0) - return (const GLubyte *) default_extensions[i].name; - index--; + const GLboolean *base = (GLboolean*) &ctx->Extensions; + size_t n = 0; + for (const struct extension *i = extension_table; i->name != 0; ++i) { + if (n == index && base[i->offset]) { + return (GLubyte*) i->name; + } else if (base[i->offset]) { + ++n; } } |