diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/extensions.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/extensions.c | 516 |
1 files changed, 0 insertions, 516 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/extensions.c b/nx-X11/extras/Mesa/src/mesa/main/extensions.c deleted file mode 100644 index fae984165..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/extensions.c +++ /dev/null @@ -1,516 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 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_shader", F(ARB_fragment_shader) }, - { OFF, "GL_MESAX_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_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_fog_coord", F(EXT_fog_coord) }, - { OFF, "GL_EXT_histogram", F(EXT_histogram) }, - { OFF, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) }, - { 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) }, - { 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_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_HP_occlusion_test", F(HP_occlusion_test) }, - { 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_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_pixel_texture", F(SGIS_pixel_texture) }, - { 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_pixel_texture", F(SGIX_pixel_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; -#endif -#if 0 && 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 0 && FEATURE_ARB_shader_objects - ctx->Extensions.ARB_shader_objects = GL_TRUE; -#endif -#if 0 && FEATURE_ARB_shading_language_100 - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; -#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 0 && 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 -#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.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 - ctx->Extensions.EXT_histogram = GL_TRUE; - ctx->Extensions.EXT_multi_draw_arrays = 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_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_mirror_clamp = GL_TRUE; - ctx->Extensions.EXT_texture_lod_bias = GL_TRUE; - ctx->Extensions.HP_occlusion_test = GL_TRUE; - 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_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_pixel_texture = GL_TRUE; - ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE; - ctx->Extensions.SGIX_depth_texture = GL_TRUE; - ctx->Extensions.SGIX_pixel_texture = GL_TRUE; - ctx->Extensions.SGIX_shadow = GL_TRUE; - ctx->Extensions.SGIX_shadow_ambient = GL_TRUE; -} - - -/** - * 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_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_logic_op = 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 0 && 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 0 && FEATURE_ARB_shader_objects - ctx->Extensions.ARB_shader_objects = GL_TRUE; -#endif -#if 0 && FEATURE_ARB_shading_language_100 - ctx->Extensions.ARB_shading_language_100 = GL_TRUE; -#endif - ctx->Extensions.EXT_stencil_two_side = GL_TRUE; -#if 0 && FEATURE_ARB_vertex_shader - ctx->Extensions.ARB_vertex_shader = GL_TRUE; -#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; -} |