[Mesa-dev] [PATCH 1/2] mesa: Refactor handling of extension strings
Chad Versace
chad.versace at intel.com
Sun Jan 9 23:53:55 PST 2011
Place GL, GLES1, and GLES2 extensions in a unified extension table. This
allows one to enable, disable, and query the status of GLES1 and GLES2
extensions by name.
When tested on Intel Ironlake, this patch did not alter the extension
string [as given by glGetString(GL_EXTENSIONS)] for any API.
---
src/mesa/main/extensions.c | 904 ++++++++++++++++++++------------------------
src/mesa/main/mtypes.h | 3 +
2 files changed, 417 insertions(+), 490 deletions(-)
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 4262615..a771d62 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 +37,342 @@
#include "mfeatures.h"
#include "mtypes.h"
+static const uint8_t GL = 1 << 0;
+static const uint8_t ES1 = 1 << 1;
+static const uint8_t ES2 = 1 << 2;
-#define F(x) offsetof(struct gl_extensions, x)
-#define ON GL_TRUE
-#define OFF GL_FALSE
+static unsigned
+api_bit(struct gl_context* ctx)
+{
+ switch(ctx->API) {
+ case API_OPENGL: return GL;
+ case API_OPENGLES: return ES1;
+ case API_OPENGLES2: return ES2;
+ default:
+ assert(0);
+ return 0;
+ }
+}
+/**
+ * \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), 0 },
+ { "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 +661,26 @@ _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 +709,19 @@ _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 +752,10 @@ 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 +802,25 @@ 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 +828,46 @@ _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 & api_bit(ctx))) {
+ length += strlen(i->name) + 1; /* +1 for space */
}
}
+ --length; /* Remove last 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, 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 & api_bit(ctx))) {
+ 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 +876,35 @@ _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;
}
}
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 4fc25a4..3fc1fac 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2655,6 +2655,8 @@ struct gl_constants
struct gl_extensions
{
GLboolean dummy; /* don't remove this! */
+ GLboolean dummy_true; /* Set true by _mesa_init_extensions(). */
+ GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */
GLboolean ARB_blend_func_extended;
GLboolean ARB_copy_buffer;
GLboolean ARB_depth_buffer_float;
@@ -2809,6 +2811,7 @@ struct gl_extensions
GLboolean OES_EGL_image;
GLboolean OES_draw_texture;
GLboolean EXT_texture_format_BGRA8888;
+ GLboolean extension_sentinel;
/** The extension string */
const GLubyte *String;
/** Number of supported extensions */
--
1.7.3.3
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