*/
+/**
+ * \file
+ * \brief Extension handling
+ */
+
+
#include "glheader.h"
#include "imports.h"
#include "context.h"
#include "extensions.h"
-#include "simple_list.h"
+#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;
+
+ /** Year the extension was proposed or approved. Used to sort the
+ * extension string chronologically. */
+ uint16_t year;
+};
+
+
+/**
+ * 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_copy_buffer", F(ARB_copy_buffer) },
- { OFF, "GL_ARB_depth_texture", F(ARB_depth_texture) },
- { OFF, "GL_ARB_depth_clamp", F(ARB_depth_clamp) },
- { 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_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) },
- { 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_imaging", F(ARB_imaging) },
- { 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_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_seamless_cube_map", F(ARB_seamless_cube_map) },
- { OFF, "GL_ARB_shader_objects", F(ARB_shader_objects) },
- { OFF, "GL_ARB_shading_language_100", F(ARB_shading_language_100) },
- { OFF, "GL_ARB_shading_language_120", F(ARB_shading_language_120) },
- { 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) },
- { ON, "GL_ARB_texture_compression", F(ARB_texture_compression) },
- { OFF, "GL_ARB_texture_cube_map", F(ARB_texture_cube_map) },
- { OFF, "GL_ARB_texture_env_add", F(EXT_texture_env_add) },
- { OFF, "GL_ARB_texture_env_combine", F(ARB_texture_env_combine) },
- { OFF, "GL_ARB_texture_env_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_non_power_of_two", F(ARB_texture_non_power_of_two)},
- { OFF, "GL_ARB_texture_rectangle", F(NV_texture_rectangle) },
- { ON, "GL_ARB_transpose_matrix", F(ARB_transpose_matrix) },
- { 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) },
- { 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) },
- { OFF, "GL_EXT_cull_vertex", F(EXT_cull_vertex) },
- { ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) },
- { OFF, "GL_EXT_convolution", F(EXT_convolution) },
- { 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) },
- { 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_fog_coord", F(EXT_fog_coord) },
- { OFF, "GL_EXT_gpu_program_parameters", F(EXT_gpu_program_parameters) },
- { OFF, "GL_EXT_histogram", F(EXT_histogram) },
- { ON, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) },
- { OFF, "GL_EXT_packed_depth_stencil", F(EXT_packed_depth_stencil) },
- { 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) },
- { 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_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_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_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_packed_depth_stencil", F(MESA_packed_depth_stencil) },
- { 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_texture_env_combine4", F(NV_texture_env_combine4) },
- { OFF, "GL_NV_texture_rectangle", F(NV_texture_rectangle) },
- { ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) },
- { 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_color_matrix", F(SGI_color_matrix) },
- { OFF, "GL_SGI_color_table", F(SGI_color_table) },
- { OFF, "GL_SGI_texture_color_table", F(SGI_texture_color_table) },
- { OFF, "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) },
+static const struct extension extension_table[] = {
+ /* ARB Extensions */
+ { "GL_ARB_ES2_compatibility", o(ARB_ES2_compatibility), GL, 2009 },
+ { "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL, 2009 },
+ { "GL_ARB_copy_buffer", o(ARB_copy_buffer), GL, 2008 },
+ { "GL_ARB_depth_buffer_float", o(ARB_depth_buffer_float), GL, 2008 },
+ { "GL_ARB_depth_clamp", o(ARB_depth_clamp), GL, 2003 },
+ { "GL_ARB_depth_texture", o(ARB_depth_texture), GL, 2001 },
+ { "GL_ARB_draw_buffers", o(ARB_draw_buffers), GL, 2002 },
+ { "GL_ARB_draw_buffers_blend", o(ARB_draw_buffers_blend), GL, 2009 },
+ { "GL_ARB_draw_elements_base_vertex", o(ARB_draw_elements_base_vertex), GL, 2009 },
+ { "GL_ARB_draw_instanced", o(ARB_draw_instanced), GL, 2008 },
+ { "GL_ARB_explicit_attrib_location", o(ARB_explicit_attrib_location), GL, 2009 },
+ { "GL_ARB_fragment_coord_conventions", o(ARB_fragment_coord_conventions), GL, 2009 },
+ { "GL_ARB_fragment_program", o(ARB_fragment_program), GL, 2002 },
+ { "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GL, 2003 },
+ { "GL_ARB_fragment_shader", o(ARB_fragment_shader), GL, 2002 },
+ { "GL_ARB_framebuffer_object", o(ARB_framebuffer_object), GL, 2005 },
+ { "GL_ARB_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL, 1998 },
+ { "GL_ARB_half_float_pixel", o(ARB_half_float_pixel), GL, 2003 },
+ { "GL_ARB_half_float_vertex", o(ARB_half_float_vertex), GL, 2008 },
+ { "GL_ARB_instanced_arrays", o(ARB_instanced_arrays), GL, 2008 },
+ { "GL_ARB_map_buffer_range", o(ARB_map_buffer_range), GL, 2008 },
+ { "GL_ARB_multisample", o(ARB_multisample), GL, 1994 },
+ { "GL_ARB_multitexture", o(ARB_multitexture), GL, 1998 },
+ { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL, 2003 },
+ { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GL, 2001 },
+ { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 },
+ { "GL_ARB_point_parameters", o(EXT_point_parameters), GL, 1997 },
+ { "GL_ARB_point_sprite", o(ARB_point_sprite), GL, 2003 },
+ { "GL_ARB_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 },
+ { "GL_ARB_sampler_objects", o(ARB_sampler_objects), GL, 2009 },
+ { "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL, 2009 },
+ { "GL_ARB_shader_objects", o(ARB_shader_objects), GL, 2002 },
+ { "GL_ARB_shader_stencil_export", o(ARB_shader_stencil_export), GL, 2009 },
+ { "GL_ARB_shading_language_100", o(ARB_shading_language_100), GL, 2003 },
+ { "GL_ARB_shadow_ambient", o(ARB_shadow_ambient), GL, 2001 },
+ { "GL_ARB_shadow", o(ARB_shadow), GL, 2001 },
+ { "GL_ARB_sync", o(ARB_sync), GL, 2003 },
+ { "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GL, 2000 },
+ { "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GL, 2008 },
+ { "GL_ARB_texture_compression", o(ARB_texture_compression), GL, 2000 },
+ { "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 },
+ { "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GL, 1999 },
+ { "GL_ARB_texture_env_add", o(EXT_texture_env_add), GL, 1999 },
+ { "GL_ARB_texture_env_combine", o(ARB_texture_env_combine), GL, 2001 },
+ { "GL_ARB_texture_env_crossbar", o(ARB_texture_env_crossbar), GL, 2001 },
+ { "GL_ARB_texture_env_dot3", o(ARB_texture_env_dot3), GL, 2001 },
+ { "GL_ARB_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL, 2001 },
+ { "GL_ARB_texture_multisample", o(ARB_texture_multisample), GL, 2009 },
+ { "GL_ARB_texture_non_power_of_two", o(ARB_texture_non_power_of_two), GL, 2003 },
+ { "GL_ARB_texture_rectangle", o(NV_texture_rectangle), GL, 2004 },
+ { "GL_ARB_texture_rgb10_a2ui", o(ARB_texture_rgb10_a2ui), GL, 2009 },
+ { "GL_ARB_texture_rg", o(ARB_texture_rg), GL, 2008 },
+ { "GL_ARB_texture_swizzle", o(EXT_texture_swizzle), GL, 2008 },
+ { "GL_ARB_transform_feedback2", o(ARB_transform_feedback2), GL, 2010 },
+ { "GL_ARB_transpose_matrix", o(ARB_transpose_matrix), GL, 1999 },
+ { "GL_ARB_uniform_buffer_object", o(ARB_uniform_buffer_object), GL, 2002 },
+ { "GL_ARB_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 },
+ { "GL_ARB_vertex_array_object", o(ARB_vertex_array_object), GL, 2006 },
+ { "GL_ARB_vertex_buffer_object", o(ARB_vertex_buffer_object), GL, 2003 },
+ { "GL_ARB_vertex_program", o(ARB_vertex_program), GL, 2002 },
+ { "GL_ARB_vertex_shader", o(ARB_vertex_shader), GL, 2002 },
+ { "GL_ARB_vertex_type_2_10_10_10_rev", o(ARB_vertex_type_2_10_10_10_rev), GL, 2009 },
+ { "GL_ARB_window_pos", o(ARB_window_pos), GL, 2001 },
+
+ /* EXT extensions */
+ { "GL_EXT_abgr", o(EXT_abgr), GL, 1995 },
+ { "GL_EXT_bgra", o(EXT_bgra), GL, 1995 },
+ { "GL_EXT_blend_color", o(EXT_blend_color), GL, 1995 },
+ { "GL_EXT_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
+ { "GL_EXT_blend_func_separate", o(EXT_blend_func_separate), GL, 1999 },
+ { "GL_EXT_blend_logic_op", o(EXT_blend_logic_op), GL, 1995 },
+ { "GL_EXT_blend_minmax", o(EXT_blend_minmax), GL | ES1 | ES2, 1995 },
+ { "GL_EXT_blend_subtract", o(EXT_blend_subtract), GL, 1995 },
+ { "GL_EXT_clip_volume_hint", o(EXT_clip_volume_hint), GL, 1996 },
+ { "GL_EXT_compiled_vertex_array", o(EXT_compiled_vertex_array), GL, 1996 },
+ { "GL_EXT_copy_texture", o(EXT_copy_texture), GL, 1995 },
+ { "GL_EXT_depth_bounds_test", o(EXT_depth_bounds_test), GL, 2002 },
+ { "GL_EXT_draw_buffers2", o(EXT_draw_buffers2), GL, 2006 },
+ { "GL_EXT_draw_instanced", o(ARB_draw_instanced), GL, 2006 },
+ { "GL_EXT_draw_range_elements", o(EXT_draw_range_elements), GL, 1997 },
+ { "GL_EXT_fog_coord", o(EXT_fog_coord), GL, 1999 },
+ { "GL_EXT_framebuffer_blit", o(EXT_framebuffer_blit), GL, 2005 },
+ { "GL_EXT_framebuffer_multisample", o(EXT_framebuffer_multisample), GL, 2005 },
+ { "GL_EXT_framebuffer_object", o(EXT_framebuffer_object), GL, 2000 },
+ { "GL_EXT_framebuffer_sRGB", o(EXT_framebuffer_sRGB), GL, 1998 },
+ { "GL_EXT_gpu_program_parameters", o(EXT_gpu_program_parameters), GL, 2006 },
+ { "GL_EXT_gpu_shader4", o(EXT_gpu_shader4), GL, 2006 },
+ { "GL_EXT_multi_draw_arrays", o(EXT_multi_draw_arrays), GL | ES1 | ES2, 1999 },
+ { "GL_EXT_packed_depth_stencil", o(EXT_packed_depth_stencil), GL, 2005 },
+ { "GL_EXT_packed_float", o(EXT_packed_float), GL, 2004 },
+ { "GL_EXT_packed_pixels", o(EXT_packed_pixels), GL, 1997 },
+ { "GL_EXT_paletted_texture", o(EXT_paletted_texture), GL, 1995 },
+ { "GL_EXT_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 },
+ { "GL_EXT_point_parameters", o(EXT_point_parameters), GL, 1997 },
+ { "GL_EXT_polygon_offset", o(EXT_polygon_offset), GL, 1995 },
+ { "GL_EXT_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 },
+ { "GL_EXT_rescale_normal", o(EXT_rescale_normal), GL, 1997 },
+ { "GL_EXT_secondary_color", o(EXT_secondary_color), GL, 1999 },
+ { "GL_EXT_separate_shader_objects", o(EXT_separate_shader_objects), GL, 2008 },
+ { "GL_EXT_separate_specular_color", o(EXT_separate_specular_color), GL, 1997 },
+ { "GL_EXT_shadow_funcs", o(EXT_shadow_funcs), GL, 2002 },
+ { "GL_EXT_shared_texture_palette", o(EXT_shared_texture_palette), GL, 2000 },
+ { "GL_EXT_stencil_two_side", o(EXT_stencil_two_side), GL, 2001 },
+ { "GL_EXT_stencil_wrap", o(EXT_stencil_wrap), GL, 2002 },
+ { "GL_EXT_subtexture", o(EXT_subtexture), GL, 1995 },
+ { "GL_EXT_texture3D", o(EXT_texture3D), GL, 1996 },
+ { "GL_EXT_texture_array", o(EXT_texture_array), GL, 2006 },
+ { "GL_EXT_texture_compression_dxt1", o(EXT_texture_compression_s3tc), GL | ES1 | ES2, 2004 },
+ { "GL_EXT_texture_compression_latc", o(EXT_texture_compression_latc), GL, 2006 },
+ { "GL_EXT_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 },
+ { "GL_EXT_texture_compression_s3tc", o(EXT_texture_compression_s3tc), GL, 2000 },
+ { "GL_EXT_texture_cube_map", o(ARB_texture_cube_map), GL, 2001 },
+ { "GL_EXT_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL, 1997 },
+ { "GL_EXT_texture_env_add", o(EXT_texture_env_add), GL, 1999 },
+ { "GL_EXT_texture_env_combine", o(EXT_texture_env_combine), GL, 2006 },
+ { "GL_EXT_texture_env_dot3", o(EXT_texture_env_dot3), GL, 2000 },
+ { "GL_EXT_texture_filter_anisotropic", o(EXT_texture_filter_anisotropic), GL | ES1 | ES2, 1999 },
+ { "GL_EXT_texture_format_BGRA8888", o(EXT_texture_format_BGRA8888), ES1 | ES2, 2009 },
+ { "GL_EXT_texture_integer", o(EXT_texture_integer), GL, 2006 },
+ { "GL_EXT_texture_lod_bias", o(EXT_texture_lod_bias), GL | ES1, 1999 },
+ { "GL_EXT_texture_mirror_clamp", o(EXT_texture_mirror_clamp), GL, 2004 },
+ { "GL_EXT_texture_object", o(EXT_texture_object), GL, 1995 },
+ { "GL_EXT_texture", o(EXT_texture), GL, 1996 },
+ { "GL_EXT_texture_rectangle", o(NV_texture_rectangle), GL, 2004 },
+ { "GL_EXT_texture_shared_exponent", o(EXT_texture_shared_exponent), GL, 2004 },
+ { "GL_EXT_texture_sRGB", o(EXT_texture_sRGB), GL, 2004 },
+ { "GL_EXT_texture_sRGB_decode", o(EXT_texture_sRGB_decode), GL, 2006 },
+ { "GL_EXT_texture_swizzle", o(EXT_texture_swizzle), GL, 2008 },
+ { "GL_EXT_texture_type_2_10_10_10_REV", o(dummy_true), ES2, 2008 },
+ { "GL_EXT_timer_query", o(EXT_timer_query), GL, 2006 },
+ { "GL_EXT_transform_feedback", o(EXT_transform_feedback), GL, 2011 },
+ { "GL_EXT_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 },
+ { "GL_EXT_vertex_array", o(EXT_vertex_array), GL, 1995 },
+ { "GL_EXT_vertex_array_set", o(EXT_vertex_array_set), GL, 1997 },
+
+ /* OES extensions */
+ { "GL_OES_blend_equation_separate", o(EXT_blend_equation_separate), ES1, 2009 },
+ { "GL_OES_blend_func_separate", o(EXT_blend_func_separate), ES1, 2009 },
+ { "GL_OES_blend_subtract", o(EXT_blend_subtract), ES1, 2009 },
+ { "GL_OES_byte_coordinates", o(dummy_true), ES1, 2002 },
+ { "GL_OES_compressed_paletted_texture", o(dummy_false), DISABLE, 2003 },
+ { "GL_OES_depth24", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_depth32", o(dummy_false), DISABLE, 2005 },
+ { "GL_OES_depth_texture", o(ARB_depth_texture), ES2, 2006 },
#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, 2004 },
+#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, 2006 },
+#endif
+ { "GL_OES_element_index_uint", o(EXT_vertex_array), ES1 | ES2, 2005 },
+ { "GL_OES_fbo_render_mipmap", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_fixed_point", o(dummy_true), ES1, 2002 },
+ { "GL_OES_framebuffer_object", o(EXT_framebuffer_object), ES1, 2005 },
+ { "GL_OES_mapbuffer", o(ARB_vertex_buffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_matrix_get", o(dummy_true), ES1, 2004 },
+ { "GL_OES_packed_depth_stencil", o(EXT_packed_depth_stencil), ES1 | ES2, 2007 },
+ { "GL_OES_point_size_array", o(dummy_true), ES1, 2004 },
+ { "GL_OES_point_sprite", o(ARB_point_sprite), ES1, 2004 },
+ { "GL_OES_query_matrix", o(dummy_true), ES1, 2003 },
+ { "GL_OES_read_format", o(OES_read_format), GL | ES1, 2003 },
+ { "GL_OES_rgb8_rgba8", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_single_precision", o(dummy_true), ES1, 2003 },
+ { "GL_OES_standard_derivatives", o(OES_standard_derivatives), ES2, 2005 },
+ { "GL_OES_stencil1", o(dummy_false), DISABLE, 2005 },
+ { "GL_OES_stencil4", o(dummy_false), DISABLE, 2005 },
+ { "GL_OES_stencil8", o(EXT_framebuffer_object), ES1 | ES2, 2005 },
+ { "GL_OES_stencil_wrap", o(EXT_stencil_wrap), ES1, 2002 },
+ { "GL_OES_texture_3D", o(EXT_texture3D), ES2, 2005 },
+ { "GL_OES_texture_cube_map", o(ARB_texture_cube_map), ES1, 2007 },
+ { "GL_OES_texture_env_crossbar", o(ARB_texture_env_crossbar), ES1, 2005 },
+ { "GL_OES_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), ES1, 2005 },
+ { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES2, 2005 },
+
+ /* Vendor extensions */
+ { "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL, 1999 },
+ { "GL_AMD_conservative_depth", o(AMD_conservative_depth), GL, 2009 },
+ { "GL_APPLE_client_storage", o(APPLE_client_storage), GL, 2002 },
+ { "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL, 2006 },
+ { "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GL, 2002 },
+ { "GL_APPLE_vertex_array_object", o(APPLE_vertex_array_object), GL, 2002 },
+ { "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
+ { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GL, 2001 },
+ { "GL_ATI_fragment_shader", o(ATI_fragment_shader), GL, 2001 },
+ { "GL_ATI_separate_stencil", o(ATI_separate_stencil), GL, 2006 },
+ { "GL_ATI_texture_compression_3dc", o(ATI_texture_compression_3dc), GL, 2004 },
+ { "GL_ATI_texture_env_combine3", o(ATI_texture_env_combine3), GL, 2002 },
+ { "GL_ATI_texture_mirror_once", o(ATI_texture_mirror_once), GL, 2006 },
+ { "GL_IBM_multimode_draw_arrays", o(IBM_multimode_draw_arrays), GL, 1998 },
+ { "GL_IBM_rasterpos_clip", o(IBM_rasterpos_clip), GL, 1996 },
+ { "GL_IBM_texture_mirrored_repeat", o(ARB_texture_mirrored_repeat), GL, 1998 },
+ { "GL_INGR_blend_func_separate", o(EXT_blend_func_separate), GL, 1999 },
+ { "GL_MESA_pack_invert", o(MESA_pack_invert), GL, 2002 },
+ { "GL_MESA_resize_buffers", o(MESA_resize_buffers), GL, 1999 },
+ { "GL_MESA_texture_array", o(MESA_texture_array), GL, 2007 },
+ { "GL_MESA_texture_signed_rgba", o(MESA_texture_signed_rgba), GL, 2009 },
+ { "GL_MESA_window_pos", o(ARB_window_pos), GL, 2000 },
+ { "GL_MESAX_texture_float", o(ARB_texture_float), GL, 2009 },
+ { "GL_MESA_ycbcr_texture", o(MESA_ycbcr_texture), GL, 2002 },
+ { "GL_NV_blend_square", o(NV_blend_square), GL, 1999 },
+ { "GL_NV_conditional_render", o(NV_conditional_render), GL, 2008 },
+ { "GL_NV_depth_clamp", o(ARB_depth_clamp), GL, 2001 },
+ { "GL_NV_fragment_program", o(NV_fragment_program), GL, 2001 },
+ { "GL_NV_fragment_program_option", o(NV_fragment_program_option), GL, 2005 },
+ { "GL_NV_light_max_exponent", o(NV_light_max_exponent), GL, 1999 },
+ { "GL_NV_packed_depth_stencil", o(EXT_packed_depth_stencil), GL, 2000 },
+ { "GL_NV_point_sprite", o(NV_point_sprite), GL, 2001 },
+ { "GL_NV_primitive_restart", o(NV_primitive_restart), GL, 2002 },
+ { "GL_NV_texgen_reflection", o(NV_texgen_reflection), GL, 1999 },
+ { "GL_NV_texture_barrier", o(NV_texture_barrier), GL, 2009 },
+ { "GL_NV_texture_env_combine4", o(NV_texture_env_combine4), GL, 1999 },
+ { "GL_NV_texture_rectangle", o(NV_texture_rectangle), GL, 2000 },
+ { "GL_NV_vertex_program1_1", o(NV_vertex_program1_1), GL, 2001 },
+ { "GL_NV_vertex_program", o(NV_vertex_program), GL, 2000 },
+ { "GL_S3_s3tc", o(S3_s3tc), GL, 1999 },
+ { "GL_SGIS_generate_mipmap", o(SGIS_generate_mipmap), GL, 1997 },
+ { "GL_SGIS_texture_border_clamp", o(ARB_texture_border_clamp), GL, 1997 },
+ { "GL_SGIS_texture_edge_clamp", o(SGIS_texture_edge_clamp), GL, 1997 },
+ { "GL_SGIS_texture_lod", o(SGIS_texture_lod), GL, 1997 },
+ { "GL_SUN_multi_draw_arrays", o(EXT_multi_draw_arrays), GL, 1999 },
+
+ { 0, 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)
+{
+ const struct extension *i;
+
+ if (name == 0)
+ return 0;
+
+ for (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),
+ o(OES_standard_derivatives),
+
+ /* 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.
* This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc.
*/
void
-_mesa_enable_sw_extensions(GLcontext *ctx)
+_mesa_enable_sw_extensions(struct gl_context *ctx)
{
- ctx->Extensions.ARB_copy_buffer = GL_TRUE;
+ /*ctx->Extensions.ARB_copy_buffer = GL_TRUE;*/
ctx->Extensions.ARB_depth_clamp = GL_TRUE;
ctx->Extensions.ARB_depth_texture = GL_TRUE;
/*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
+ ctx->Extensions.ARB_draw_instanced = GL_TRUE;
+ ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
#if FEATURE_ARB_fragment_program
ctx->Extensions.ARB_fragment_program = GL_TRUE;
#endif
#if FEATURE_ARB_framebuffer_object
ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
+#endif
+#if FEATURE_ARB_geometry_shader4 && 0
+ /* XXX re-enable when GLSL compiler again supports geometry shaders */
+ ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
#endif
ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
- ctx->Extensions.ARB_imaging = GL_TRUE;
ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
ctx->Extensions.ARB_multitexture = GL_TRUE;
#if FEATURE_queryobj
ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;
#endif
ctx->Extensions.ARB_point_sprite = GL_TRUE;
#if FEATURE_ARB_shader_objects
ctx->Extensions.ARB_shader_objects = GL_TRUE;
+ ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
#endif
#if FEATURE_ARB_shading_language_100
ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
-#endif
-#if FEATURE_ARB_shading_language_120
- ctx->Extensions.ARB_shading_language_120 = GL_TRUE;
#endif
ctx->Extensions.ARB_shadow = GL_TRUE;
ctx->Extensions.ARB_shadow_ambient = GL_TRUE;
/*ctx->Extensions.ARB_texture_float = GL_TRUE;*/
ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+ ctx->Extensions.ARB_texture_rg = GL_TRUE;
+ ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE;
ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
#if FEATURE_ARB_vertex_program
ctx->Extensions.ARB_vertex_program = GL_TRUE;
#if FEATURE_ATI_fragment_shader
ctx->Extensions.ATI_fragment_shader = GL_TRUE;
#endif
+ ctx->Extensions.ATI_texture_compression_3dc = GL_TRUE;
ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
ctx->Extensions.ATI_separate_stencil = GL_TRUE;
ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
ctx->Extensions.EXT_blend_minmax = GL_TRUE;
ctx->Extensions.EXT_blend_subtract = GL_TRUE;
- ctx->Extensions.EXT_convolution = GL_TRUE;
ctx->Extensions.EXT_depth_bounds_test = GL_TRUE;
ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
ctx->Extensions.EXT_fog_coord = GL_TRUE;
#if FEATURE_ARB_framebuffer_object
ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
#endif
- ctx->Extensions.EXT_histogram = GL_TRUE;
/*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
ctx->Extensions.EXT_paletted_texture = GL_TRUE;
ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
ctx->Extensions.EXT_texture_array = GL_TRUE;
+ ctx->Extensions.EXT_texture_compression_latc = GL_TRUE;
ctx->Extensions.EXT_texture_env_add = GL_TRUE;
ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
#if FEATURE_EXT_texture_sRGB
ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
+ ctx->Extensions.EXT_texture_sRGB_decode = GL_TRUE;
#endif
ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
#if FEATURE_EXT_transform_feedback
- ctx->Extensions.EXT_transform_feedback = GL_TRUE;
+ /*ctx->Extensions.EXT_transform_feedback = GL_TRUE;*/
#endif
ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
/*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/
#if FEATURE_NV_fragment_program && FEATURE_ARB_fragment_program
ctx->Extensions.NV_fragment_program_option = GL_TRUE;
#endif
- ctx->Extensions.SGI_color_matrix = GL_TRUE;
- ctx->Extensions.SGI_color_table = GL_TRUE;
- ctx->Extensions.SGI_texture_color_table = GL_TRUE;
- ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
+ /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE;
#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
/**
- * Enable GL_ARB_imaging and all the EXT extensions that are subsets of it.
+ * Enable common EXT extensions in the ARB_imaging subset.
*/
void
-_mesa_enable_imaging_extensions(GLcontext *ctx)
+_mesa_enable_imaging_extensions(struct gl_context *ctx)
{
- ctx->Extensions.ARB_imaging = GL_TRUE;
ctx->Extensions.EXT_blend_color = GL_TRUE;
ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
ctx->Extensions.EXT_blend_minmax = GL_TRUE;
ctx->Extensions.EXT_blend_subtract = GL_TRUE;
- ctx->Extensions.EXT_convolution = GL_TRUE;
- ctx->Extensions.EXT_histogram = GL_TRUE;
- ctx->Extensions.SGI_color_matrix = GL_TRUE;
- ctx->Extensions.SGI_color_table = GL_TRUE;
}
* A convenience function to be called by drivers.
*/
void
-_mesa_enable_1_3_extensions(GLcontext *ctx)
+_mesa_enable_1_3_extensions(struct gl_context *ctx)
{
/*ctx->Extensions.ARB_multisample = GL_TRUE;*/
ctx->Extensions.ARB_multitexture = GL_TRUE;
* A convenience function to be called by drivers.
*/
void
-_mesa_enable_1_4_extensions(GLcontext *ctx)
+_mesa_enable_1_4_extensions(struct gl_context *ctx)
{
ctx->Extensions.ARB_depth_texture = GL_TRUE;
ctx->Extensions.ARB_shadow = GL_TRUE;
ctx->Extensions.EXT_secondary_color = GL_TRUE;
ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
- ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
+ /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
}
* A convenience function to be called by drivers.
*/
void
-_mesa_enable_1_5_extensions(GLcontext *ctx)
+_mesa_enable_1_5_extensions(struct gl_context *ctx)
{
ctx->Extensions.ARB_occlusion_query = GL_TRUE;
/*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
* A convenience function to be called by drivers.
*/
void
-_mesa_enable_2_0_extensions(GLcontext *ctx)
+_mesa_enable_2_0_extensions(struct gl_context *ctx)
{
/*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
#if FEATURE_ARB_fragment_shader
* A convenience function to be called by drivers.
*/
void
-_mesa_enable_2_1_extensions(GLcontext *ctx)
+_mesa_enable_2_1_extensions(struct gl_context *ctx)
{
#if FEATURE_EXT_pixel_buffer_object
ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
#if FEATURE_EXT_texture_sRGB
ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
#endif
-#if FEATURE_ARB_shading_language_120
- ctx->Extensions.ARB_shading_language_120 = GL_TRUE;
-#endif
}
-
/**
* Either enable or disable the named extension.
* \return GL_TRUE for success, GL_FALSE if invalid extension name
*/
static GLboolean
-set_extension( GLcontext *ctx, const char *name, GLboolean state )
+set_extension( struct gl_context *ctx, const char *name, GLboolean state )
{
- GLboolean *base = (GLboolean *) &ctx->Extensions;
- GLuint i;
+ size_t offset;
if (ctx->Extensions.String) {
/* The string was already queried - can't change it now! */
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;
- }
+ 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;
}
* Typically called by drivers.
*/
void
-_mesa_enable_extension( GLcontext *ctx, const char *name )
+_mesa_enable_extension( struct gl_context *ctx, const char *name )
{
if (!set_extension(ctx, name, GL_TRUE))
_mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
* XXX is this really needed???
*/
void
-_mesa_disable_extension( GLcontext *ctx, const char *name )
+_mesa_disable_extension( struct gl_context *ctx, const char *name )
{
if (!set_extension(ctx, name, GL_FALSE))
_mesa_problem(ctx, "Trying to disable unknown extension: %s", name);
/**
- * Check if the i-th extension is enabled.
+ * Test if the named extension is enabled in this context.
*/
-static GLboolean
-extension_enabled(GLcontext *ctx, GLuint index)
+GLboolean
+_mesa_extension_is_enabled( struct gl_context *ctx, const char *name )
{
- const GLboolean *base = (const GLboolean *) &ctx->Extensions;
- if (!default_extensions[index].flag_offset ||
- *(base + default_extensions[index].flag_offset)) {
- return GL_TRUE;
- }
- else {
+ size_t offset;
+ GLboolean *base;
+
+ if (name == 0)
return GL_FALSE;
- }
+
+ offset = name_to_offset(name);
+ if (offset == 0)
+ return GL_FALSE;
+ base = (GLboolean *) &ctx->Extensions;
+ return base[offset];
}
/**
- * Test if the named extension is enabled in this context.
+ * \brief Apply the \c MESA_EXTENSION_OVERRIDE environment variable.
+ *
+ * \c MESA_EXTENSION_OVERRIDE is a space-separated list of extensions to
+ * enable or disable. The list is processed thus:
+ * - Enable recognized extension names that are prefixed with '+'.
+ * - Disable recognized extension names that are prefixed with '-'.
+ * - Enable recognized extension names that are not prefixed.
+ * - Collect unrecognized extension names in a new string.
+ *
+ * \return Space-separated list of unrecognized extension names (which must
+ * be freed). Does not return \c NULL.
*/
-GLboolean
-_mesa_extension_is_enabled( GLcontext *ctx, const char *name )
+static char *
+get_extension_override( struct gl_context *ctx )
{
- GLuint i;
+ const char *env_const= _mesa_getenv("MESA_EXTENSION_OVERRIDE");
+ char *env;
+ char *ext;
+ char *extra_exts;
+ int len;
+
+ if (env_const == NULL) {
+ /* Return the empty string rather than NULL. This simplifies the logic
+ * of client functions. */
+ return calloc(1, sizeof(char));
+ }
- for (i = 0 ; i < Elements(default_extensions) ; i++) {
- if (strcmp(default_extensions[i].name, name) == 0) {
- return extension_enabled(ctx, i);
+ /* extra_exts: List of unrecognized extensions. */
+ extra_exts = calloc(strlen(env_const), sizeof(char));
+
+ /* Copy env_const because strtok() is destructive. */
+ env = strdup(env_const);
+ for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) {
+ int enable;
+ int recognized;
+ switch (ext[0]) {
+ case '+':
+ enable = 1;
+ ++ext;
+ break;
+ case '-':
+ enable = 0;
+ ++ext;
+ break;
+ default:
+ enable = 1;
+ break;
+ }
+ recognized = set_extension(ctx, ext, enable);
+ if (!recognized) {
+ strcat(extra_exts, ext);
+ strcat(extra_exts, " ");
}
}
- return GL_FALSE;
-}
+ /* Remove trailing space. */
+ len = strlen(extra_exts);
+ if (extra_exts[len - 1] == ' ')
+ extra_exts[len - 1] = '\0';
-/**
- * Append string 'b' onto string 'a'. Free 'a' and return new string.
- */
-static char *
-append(const char *a, const char *b)
-{
- const GLuint aLen = a ? strlen(a) : 0;
- const GLuint bLen = b ? strlen(b) : 0;
- char *s = calloc(1, aLen + bLen + 1);
- if (s) {
- if (a)
- memcpy(s, a, aLen);
- if (b)
- memcpy(s + aLen, b, bLen);
- s[aLen + bLen] = '\0';
- }
- if (a)
- free((void *) a);
- return s;
+ return extra_exts;
}
/**
- * Check the MESA_EXTENSION_OVERRIDE env var.
- * 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.
+ * \brief Initialize extension tables and enable default extensions.
+ *
+ * This should be called during context initialization.
+ * Note: Sets gl_extensions.dummy_true to true.
*/
-static const char *
-get_extension_override( GLcontext *ctx )
+void
+_mesa_init_extensions( struct gl_context *ctx )
{
- const char *envExt = _mesa_getenv("MESA_EXTENSION_OVERRIDE");
- char *extraExt = NULL;
- char ext[1000];
- GLuint extLen = 0;
- GLuint i;
- GLboolean disableExt = GL_FALSE;
-
- if (!envExt)
- return NULL;
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLboolean *sentinel = base + o(extension_sentinel);
+ GLboolean *i;
+ const size_t *j;
+
+ /* First, turn all extensions off. */
+ for (i = base; i != sentinel; ++i)
+ *i = GL_FALSE;
+
+ /* Then, selectively turn default extensions on. */
+ ctx->Extensions.dummy_true = GL_TRUE;
+ for (j = default_extensions; *j != 0; ++j)
+ base[*j] = GL_TRUE;
+}
- for (i = 0; ; i++) {
- if (envExt[i] == '\0' || envExt[i] == ' ') {
- /* terminate/process 'ext' if extLen > 0 */
- if (extLen > 0) {
- assert(extLen < sizeof(ext));
- /* enable extension named by 'ext' */
- ext[extLen] = 0;
- if (!set_extension(ctx, ext, !disableExt)) {
- /* unknown extension name, append it to extraExt */
- if (extraExt) {
- extraExt = append(extraExt, " ");
- }
- extraExt = append(extraExt, ext);
- }
- extLen = 0;
- disableExt = GL_FALSE;
- }
- if (envExt[i] == '\0')
- break;
- }
- else if (envExt[i] == '-') {
- disableExt = GL_TRUE;
- }
- else {
- /* accumulate this non-space character */
- ext[extLen++] = envExt[i];
- }
- }
- return extraExt;
-}
+typedef unsigned short extension_index;
/**
- * Run through the default_extensions array above and set the
- * ctx->Extensions.ARB/EXT_* flags accordingly.
- * To be called during context initialization.
+ * Compare two entries of the extensions table. Sorts first by year,
+ * then by name.
+ *
+ * Arguments are indices into extension_table.
*/
-void
-_mesa_init_extensions( GLcontext *ctx )
+static int
+extension_compare(const void *p1, const void *p2)
{
- GLboolean *base = (GLboolean *) &ctx->Extensions;
- GLuint i;
+ extension_index i1 = * (const extension_index *) p1;
+ extension_index i2 = * (const extension_index *) p2;
+ const struct extension *e1 = &extension_table[i1];
+ const struct extension *e2 = &extension_table[i2];
+ int res;
- 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;
- }
+ res = (int)e1->year - (int)e2->year;
+
+ if (res == 0) {
+ res = strcmp(e1->name, e2->name);
}
+
+ return res;
}
* Construct the GL_EXTENSIONS string. Called the first time that
* glGetString(GL_EXTENSIONS) is called.
*/
-GLubyte *
-_mesa_make_extension_string( GLcontext *ctx )
+GLubyte*
+_mesa_make_extension_string(struct gl_context *ctx)
{
- const char *extraExt = get_extension_override(ctx);
- GLuint extStrLen = 0;
- char *s;
- GLuint i;
-
- /* 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;
+ /* The extension string. */
+ char *exts = 0;
+ /* Length of extension string. */
+ size_t length = 0;
+ /* Number of extensions */
+ unsigned count;
+ /* Indices of the extensions sorted by year */
+ extension_index *extension_indices;
+ /* String of extra extensions. */
+ char *extra_extensions = get_extension_override(ctx);
+ GLboolean *base = (GLboolean *) &ctx->Extensions;
+ const struct extension *i;
+ unsigned j;
+
+
+ /* Compute length of the extension string. */
+ count = 0;
+ for (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 */
+ ++count;
}
}
+ if (extra_extensions != NULL)
+ length += 1 + strlen(extra_extensions); /* +1 for space */
- if (extraExt)
- extStrLen += strlen(extraExt) + 1; /* +1 for space */
+ exts = (char *) calloc(length + 1, sizeof(char));
+ if (exts == NULL) {
+ free(extra_extensions);
+ return NULL;
+ }
- /* allocate the extension string */
- s = (char *) malloc(extStrLen);
- if (!s)
+ extension_indices = malloc(count * sizeof extension_indices);
+ if (extension_indices == NULL) {
+ free(exts);
+ 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++;
+ /* Sort extensions in chronological order because certain old applications (e.g.,
+ * Quake3 demo) store the extension list in a static size buffer so chronologically
+ * order ensure that the extensions that such applications expect will fit into
+ * that buffer.
+ */
+ j = 0;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (base[i->offset] && (i->api_set & (1 << ctx->API))) {
+ extension_indices[j++] = i - extension_table;
}
}
- ASSERT(extStrLen > 0);
-
- s[extStrLen - 1] = 0; /* -1 to overwrite trailing the ' ' */
-
- if (extraExt) {
- s = append(s, " ");
- s = append(s, extraExt);
+ assert(j == count);
+ qsort(extension_indices, count, sizeof *extension_indices, extension_compare);
+
+ /* Build the extension string.*/
+ for (j = 0; j < count; ++j) {
+ i = &extension_table[extension_indices[j]];
+ assert(base[i->offset] && (i->api_set & (1 << ctx->API)));
+ strcat(exts, i->name);
+ strcat(exts, " ");
+ }
+ free(extension_indices);
+ if (extra_extensions != 0) {
+ strcat(exts, extra_extensions);
+ free(extra_extensions);
}
- return (GLubyte *) s;
+ return (GLubyte *) exts;
}
-
/**
* Return number of enabled extensions.
*/
GLuint
-_mesa_get_extension_count(GLcontext *ctx)
+_mesa_get_extension_count(struct gl_context *ctx)
{
- GLuint i;
+ GLboolean *base;
+ const struct extension *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;
+
+ base = (GLboolean *) &ctx->Extensions;
+ for (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,
- Elements(default_extensions));
-
return ctx->Extensions.Count;
}
-
/**
* Return name of i-th enabled extension
*/
const GLubyte *
-_mesa_get_enabled_extension(GLcontext *ctx, GLuint index)
+_mesa_get_enabled_extension(struct gl_context *ctx, GLuint index)
{
- GLuint i;
+ const GLboolean *base;
+ size_t n;
+ const struct extension *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--;
+ base = (GLboolean*) &ctx->Extensions;
+ n = 0;
+ for (i = extension_table; i->name != 0; ++i) {
+ if (n == index && base[i->offset]) {
+ return (GLubyte*) i->name;
+ } else if (base[i->offset]) {
+ ++n;
}
}