| /* |
| * Mesa 3-D graphics library |
| * Version: 7.1 |
| * |
| * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| |
| #include "glheader.h" |
| #include "imports.h" |
| #include "context.h" |
| #include "extensions.h" |
| #include "simple_list.h" |
| #include "mtypes.h" |
| |
| |
| #define F(x) (int)(uintptr_t)&(((struct gl_extensions *)0)->x) |
| #define ON GL_TRUE |
| #define OFF GL_FALSE |
| |
| |
| /* |
| * 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_depth_texture", F(ARB_depth_texture) }, |
| { OFF, "GL_ARB_draw_buffers", F(ARB_draw_buffers) }, |
| { 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_half_float_pixel", F(ARB_half_float_pixel) }, |
| { OFF, "GL_ARB_imaging", F(ARB_imaging) }, |
| { OFF, "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_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(SGIX_shadow_ambient) }, |
| { OFF, "GL_ARB_texture_border_clamp", F(ARB_texture_border_clamp) }, |
| { OFF, "GL_ARB_texture_compression", F(ARB_texture_compression) }, |
| { OFF, "GL_ARB_texture_cube_map", F(ARB_texture_cube_map) }, |
| { OFF, "GL_ARB_texture_env_add", F(EXT_texture_env_add) }, |
| { OFF, "GL_ARB_texture_env_combine", F(ARB_texture_env_combine) }, |
| { OFF, "GL_ARB_texture_env_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_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) }, |
| { ON, "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) }, |
| { ON, "GL_EXT_draw_range_elements", F(EXT_draw_range_elements) }, |
| { OFF, "GL_EXT_framebuffer_object", F(EXT_framebuffer_object) }, |
| { OFF, "GL_EXT_framebuffer_blit", F(EXT_framebuffer_blit) }, |
| { 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) }, |
| { OFF, "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) }, |
| { 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_compression_s3tc", F(EXT_texture_compression_s3tc) }, |
| { 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_timer_query", F(EXT_timer_query) }, |
| { ON, "GL_EXT_vertex_array", F(EXT_vertex_array) }, |
| { 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_ATI_blend_equation_separate", F(EXT_blend_equation_separate) }, |
| { 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)}, |
| { OFF, "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_program_debug", F(MESA_program_debug) }, |
| { OFF, "GL_MESA_resize_buffers", F(MESA_resize_buffers) }, |
| { OFF, "GL_MESA_texture_array", F(MESA_texture_array) }, |
| { 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_fragment_program", F(NV_fragment_program) }, |
| { ON, "GL_NV_light_max_exponent", F(NV_light_max_exponent) }, |
| { OFF, "GL_NV_point_sprite", F(NV_point_sprite) }, |
| { 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) }, |
| { OFF, "GL_SGIX_depth_texture", F(SGIX_depth_texture) }, |
| { OFF, "GL_SGIX_shadow", F(SGIX_shadow) }, |
| { OFF, "GL_SGIX_shadow_ambient", F(SGIX_shadow_ambient) }, |
| { OFF, "GL_SUN_multi_draw_arrays", F(EXT_multi_draw_arrays) }, |
| { OFF, "GL_S3_s3tc", F(S3_s3tc) }, |
| }; |
| |
| |
| |
| /** |
| * 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) |
| { |
| ctx->Extensions.ARB_depth_texture = GL_TRUE; |
| ctx->Extensions.ARB_draw_buffers = GL_TRUE; |
| #if FEATURE_ARB_fragment_program |
| ctx->Extensions.ARB_fragment_program = GL_TRUE; |
| ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE; |
| #endif |
| #if FEATURE_ARB_fragment_shader |
| ctx->Extensions.ARB_fragment_shader = GL_TRUE; |
| #endif |
| ctx->Extensions.ARB_half_float_pixel = GL_TRUE; |
| ctx->Extensions.ARB_imaging = GL_TRUE; |
| ctx->Extensions.ARB_multitexture = GL_TRUE; |
| #if FEATURE_ARB_occlusion_query |
| ctx->Extensions.ARB_occlusion_query = GL_TRUE; |
| #endif |
| ctx->Extensions.ARB_point_sprite = GL_TRUE; |
| #if FEATURE_ARB_shader_objects |
| ctx->Extensions.ARB_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_FALSE; /* not quite done */ |
| #endif |
| ctx->Extensions.ARB_shadow = GL_TRUE; |
| ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; |
| ctx->Extensions.ARB_texture_cube_map = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_combine = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_dot3 = 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; |
| #if FEATURE_ARB_vertex_program |
| ctx->Extensions.ARB_vertex_program = GL_TRUE; |
| #endif |
| #if FEATURE_ARB_vertex_shader |
| ctx->Extensions.ARB_vertex_shader = GL_TRUE; |
| #endif |
| #if FEATURE_ARB_vertex_buffer_object |
| ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE; |
| #endif |
| ctx->Extensions.APPLE_vertex_array_object = GL_TRUE; |
| #if FEATURE_ATI_fragment_shader |
| ctx->Extensions.ATI_fragment_shader = GL_TRUE; |
| #endif |
| 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_color = GL_TRUE; |
| ctx->Extensions.EXT_blend_equation_separate = GL_TRUE; |
| ctx->Extensions.EXT_blend_func_separate = 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_fog_coord = GL_TRUE; |
| #if FEATURE_EXT_framebuffer_object |
| ctx->Extensions.EXT_framebuffer_object = GL_TRUE; |
| #endif |
| #if FEATURE_EXT_framebuffer_blit |
| ctx->Extensions.EXT_framebuffer_blit = 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; |
| #if FEATURE_EXT_pixel_buffer_object |
| ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; |
| #endif |
| ctx->Extensions.EXT_point_parameters = GL_TRUE; |
| ctx->Extensions.EXT_shadow_funcs = GL_TRUE; |
| ctx->Extensions.EXT_secondary_color = GL_TRUE; |
| ctx->Extensions.EXT_shared_texture_palette = GL_TRUE; |
| ctx->Extensions.EXT_stencil_wrap = GL_TRUE; |
| ctx->Extensions.EXT_stencil_two_side = GL_FALSE; /* obsolete */ |
| 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_mirror_clamp = GL_TRUE; |
| ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; |
| #if FEATURE_EXT_texture_sRGB |
| ctx->Extensions.EXT_texture_sRGB = GL_TRUE; |
| #endif |
| ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE; |
| ctx->Extensions.MESA_pack_invert = GL_TRUE; |
| #if FEATURE_MESA_program_debug |
| ctx->Extensions.MESA_program_debug = GL_TRUE; |
| #endif |
| ctx->Extensions.MESA_resize_buffers = GL_TRUE; |
| ctx->Extensions.MESA_texture_array = GL_TRUE; |
| ctx->Extensions.MESA_ycbcr_texture = GL_TRUE; |
| ctx->Extensions.NV_blend_square = GL_TRUE; |
| /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/ |
| ctx->Extensions.NV_point_sprite = GL_TRUE; |
| ctx->Extensions.NV_texture_rectangle = GL_TRUE; |
| /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/ |
| #if FEATURE_NV_vertex_program |
| ctx->Extensions.NV_vertex_program = GL_TRUE; |
| ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; |
| #endif |
| #if FEATURE_NV_fragment_program |
| ctx->Extensions.NV_fragment_program = 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_texture_edge_clamp = GL_TRUE; |
| ctx->Extensions.SGIX_depth_texture = GL_TRUE; |
| ctx->Extensions.SGIX_shadow = GL_TRUE; |
| ctx->Extensions.SGIX_shadow_ambient = GL_TRUE; |
| #if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program |
| ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; |
| #endif |
| } |
| |
| |
| /** |
| * Enable GL_ARB_imaging and all the EXT extensions that are subsets of it. |
| */ |
| void |
| _mesa_enable_imaging_extensions(GLcontext *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; |
| } |
| |
| |
| |
| /** |
| * Enable all OpenGL 1.3 features and extensions. |
| * A convenience function to be called by drivers. |
| */ |
| void |
| _mesa_enable_1_3_extensions(GLcontext *ctx) |
| { |
| ctx->Extensions.ARB_multisample = GL_TRUE; |
| ctx->Extensions.ARB_multitexture = GL_TRUE; |
| ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; |
| ctx->Extensions.ARB_texture_compression = GL_TRUE; |
| ctx->Extensions.ARB_texture_cube_map = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_combine = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; |
| ctx->Extensions.EXT_texture_env_add = GL_TRUE; |
| /*ctx->Extensions.ARB_transpose_matrix = GL_TRUE;*/ |
| } |
| |
| |
| |
| /** |
| * Enable all OpenGL 1.4 features and extensions. |
| * A convenience function to be called by drivers. |
| */ |
| void |
| _mesa_enable_1_4_extensions(GLcontext *ctx) |
| { |
| ctx->Extensions.ARB_depth_texture = GL_TRUE; |
| ctx->Extensions.ARB_shadow = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; |
| ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE; |
| ctx->Extensions.ARB_window_pos = GL_TRUE; |
| ctx->Extensions.EXT_blend_color = GL_TRUE; |
| ctx->Extensions.EXT_blend_func_separate = GL_TRUE; |
| ctx->Extensions.EXT_blend_minmax = GL_TRUE; |
| ctx->Extensions.EXT_blend_subtract = GL_TRUE; |
| ctx->Extensions.EXT_fog_coord = GL_TRUE; |
| ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE; |
| ctx->Extensions.EXT_point_parameters = 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; |
| } |
| |
| |
| /** |
| * Enable all OpenGL 1.5 features and extensions. |
| * A convenience function to be called by drivers. |
| */ |
| void |
| _mesa_enable_1_5_extensions(GLcontext *ctx) |
| { |
| ctx->Extensions.ARB_occlusion_query = GL_TRUE; |
| ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE; |
| ctx->Extensions.EXT_shadow_funcs = GL_TRUE; |
| } |
| |
| |
| /** |
| * Enable all OpenGL 2.0 features and extensions. |
| * A convenience function to be called by drivers. |
| */ |
| void |
| _mesa_enable_2_0_extensions(GLcontext *ctx) |
| { |
| ctx->Extensions.ARB_draw_buffers = GL_TRUE; |
| #if FEATURE_ARB_fragment_shader |
| ctx->Extensions.ARB_fragment_shader = GL_TRUE; |
| #endif |
| ctx->Extensions.ARB_point_sprite = GL_TRUE; |
| ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE; |
| #if FEATURE_ARB_shader_objects |
| ctx->Extensions.ARB_shader_objects = GL_TRUE; |
| #endif |
| #if FEATURE_ARB_shading_language_100 |
| ctx->Extensions.ARB_shading_language_100 = GL_TRUE; |
| #endif |
| ctx->Extensions.EXT_stencil_two_side = GL_FALSE; /* obsolete */ |
| #if FEATURE_ARB_vertex_shader |
| ctx->Extensions.ARB_vertex_shader = GL_TRUE; |
| #endif |
| } |
| |
| |
| /** |
| * Enable all OpenGL 2.1 features and extensions. |
| * A convenience function to be called by drivers. |
| */ |
| void |
| _mesa_enable_2_1_extensions(GLcontext *ctx) |
| { |
| #if FEATURE_EXT_pixel_buffer_object |
| ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; |
| #endif |
| #if FEATURE_EXT_texture_sRGB |
| ctx->Extensions.EXT_texture_sRGB = GL_TRUE; |
| #endif |
| #ifdef FEATURE_ARB_shading_language_120 |
| ctx->Extensions.ARB_shading_language_120 = GL_FALSE; /* not quite done */ |
| #endif |
| } |
| |
| |
| |
| /** |
| * Either enable or disable the named extension. |
| */ |
| static void |
| set_extension( GLcontext *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; |
| } |
| |
| for (i = 0 ; i < Elements(default_extensions) ; i++) { |
| if (_mesa_strcmp(default_extensions[i].name, name) == 0) { |
| if (default_extensions[i].flag_offset) { |
| GLboolean *enabled = base + default_extensions[i].flag_offset; |
| *enabled = state; |
| } |
| return; |
| } |
| } |
| _mesa_problem(ctx, "Trying to enable unknown extension: %s", name); |
| } |
| |
| |
| /** |
| * Enable the named extension. |
| * Typically called by drivers. |
| */ |
| void |
| _mesa_enable_extension( GLcontext *ctx, const char *name ) |
| { |
| set_extension(ctx, name, GL_TRUE); |
| } |
| |
| |
| /** |
| * Disable the named extension. |
| * XXX is this really needed??? |
| */ |
| void |
| _mesa_disable_extension( GLcontext *ctx, const char *name ) |
| { |
| set_extension(ctx, name, GL_FALSE); |
| } |
| |
| |
| /** |
| * Test if the named extension is enabled in this context. |
| */ |
| GLboolean |
| _mesa_extension_is_enabled( GLcontext *ctx, const char *name ) |
| { |
| const GLboolean *base = (const GLboolean *) &ctx->Extensions; |
| GLuint i; |
| |
| for (i = 0 ; i < Elements(default_extensions) ; i++) { |
| if (_mesa_strcmp(default_extensions[i].name, name) == 0) { |
| if (!default_extensions[i].flag_offset) |
| return GL_TRUE; |
| return *(base + default_extensions[i].flag_offset); |
| } |
| } |
| return GL_FALSE; |
| } |
| |
| |
| /** |
| * Run through the default_extensions array above and set the |
| * ctx->Extensions.ARB/EXT_* flags accordingly. |
| * To be called during context initialization. |
| */ |
| void |
| _mesa_init_extensions( GLcontext *ctx ) |
| { |
| GLboolean *base = (GLboolean *) &ctx->Extensions; |
| GLuint i; |
| |
| 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; |
| } |
| } |
| } |
| |
| |
| /** |
| * Construct the GL_EXTENSIONS string. Called the first time that |
| * glGetString(GL_EXTENSIONS) is called. |
| */ |
| GLubyte * |
| _mesa_make_extension_string( GLcontext *ctx ) |
| { |
| const GLboolean *base = (const GLboolean *) &ctx->Extensions; |
| GLuint extStrLen = 0; |
| GLubyte *s; |
| GLuint i; |
| |
| /* first, compute length of the extension string */ |
| for (i = 0 ; i < Elements(default_extensions) ; i++) { |
| if (!default_extensions[i].flag_offset || |
| *(base + default_extensions[i].flag_offset)) { |
| extStrLen += (GLuint)_mesa_strlen(default_extensions[i].name) + 1; |
| } |
| } |
| s = (GLubyte *) _mesa_malloc(extStrLen); |
| |
| /* second, build the extension string */ |
| extStrLen = 0; |
| for (i = 0 ; i < Elements(default_extensions) ; i++) { |
| if (!default_extensions[i].flag_offset || |
| *(base + default_extensions[i].flag_offset)) { |
| GLuint len = (GLuint)_mesa_strlen(default_extensions[i].name); |
| _mesa_memcpy(s + extStrLen, default_extensions[i].name, len); |
| extStrLen += len; |
| s[extStrLen] = (GLubyte) ' '; |
| extStrLen++; |
| } |
| } |
| ASSERT(extStrLen > 0); |
| |
| s[extStrLen - 1] = 0; |
| |
| return s; |
| } |
