/*
* Mesa 3-D graphics library
- * Version: 7.6
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
* 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 "imports.h"
#include "context.h"
#include "extensions.h"
-#include "mfeatures.h"
+#include "macros.h"
#include "mtypes.h"
-#define ALIGN(value, alignment) (((value) + alignment - 1) & ~(alignment - 1))
-
-enum {
- DISABLE = 0,
- GLL = 1 << API_OPENGL, /* GL Legacy / Compatibility */
- GLC = 1 << API_OPENGL_CORE, /* GL Core */
- GL = (1 << API_OPENGL) | (1 << API_OPENGL_CORE),
- ES1 = 1 << API_OPENGLES,
- ES2 = 1 << API_OPENGLES2,
-};
-
-/**
- * \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;
-};
+struct gl_extensions _mesa_extension_override_enables;
+struct gl_extensions _mesa_extension_override_disables;
+static char *extra_extensions = NULL;
/**
/**
* \brief Table of supported OpenGL extensions for all API's.
*/
-static const struct extension extension_table[] = {
- /* ARB Extensions */
- { "GL_ARB_ES2_compatibility", o(ARB_ES2_compatibility), GL, 2009 },
- { "GL_ARB_base_instance", o(ARB_base_instance), GL, 2011 },
- { "GL_ARB_blend_func_extended", o(ARB_blend_func_extended), GL, 2009 },
- { "GL_ARB_color_buffer_float", o(ARB_color_buffer_float), GL, 2004 },
- { "GL_ARB_copy_buffer", o(ARB_copy_buffer), GL, 2008 },
- { "GL_ARB_conservative_depth", o(ARB_conservative_depth), GL, 2011 },
- { "GL_ARB_debug_output", o(dummy_true), GL, 2009 },
- { "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), GLL, 2001 },
- { "GL_ARB_draw_buffers", o(dummy_true), 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), GLL, 2002 },
- { "GL_ARB_fragment_program_shadow", o(ARB_fragment_program_shadow), GLL, 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_invalidate_subdata", o(dummy_true), GL, 2012 },
- { "GL_ARB_map_buffer_range", o(ARB_map_buffer_range), GL, 2008 },
- { "GL_ARB_multisample", o(dummy_true), GLL, 1994 },
- { "GL_ARB_multitexture", o(dummy_true), GLL, 1998 },
- { "GL_ARB_occlusion_query2", o(ARB_occlusion_query2), GL, 2003 },
- { "GL_ARB_occlusion_query", o(ARB_occlusion_query), GLL, 2001 },
- { "GL_ARB_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 },
- { "GL_ARB_point_parameters", o(EXT_point_parameters), GLL, 1997 },
- { "GL_ARB_point_sprite", o(ARB_point_sprite), GL, 2003 },
- { "GL_ARB_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 },
- { "GL_ARB_robustness", o(dummy_true), GL, 2010 },
- { "GL_ARB_sampler_objects", o(dummy_true), GL, 2009 },
- { "GL_ARB_seamless_cube_map", o(ARB_seamless_cube_map), GL, 2009 },
- { "GL_ARB_shader_bit_encoding", o(ARB_shader_bit_encoding), GL, 2010 },
- { "GL_ARB_shader_objects", o(ARB_shader_objects), GL, 2002 },
- { "GL_ARB_shader_stencil_export", o(ARB_shader_stencil_export), GL, 2009 },
- { "GL_ARB_shader_texture_lod", o(ARB_shader_texture_lod), GL, 2009 },
- { "GL_ARB_shading_language_100", o(ARB_shading_language_100), GLL, 2003 },
- { "GL_ARB_shadow", o(ARB_shadow), GLL, 2001 },
- { "GL_ARB_sync", o(ARB_sync), GL, 2003 },
- { "GL_ARB_texture_border_clamp", o(ARB_texture_border_clamp), GLL, 2000 },
- { "GL_ARB_texture_buffer_object", o(ARB_texture_buffer_object), GL, 2008 },
- { "GL_ARB_texture_compression", o(dummy_true), GLL, 2000 },
- { "GL_ARB_texture_compression_rgtc", o(ARB_texture_compression_rgtc), GL, 2004 },
- { "GL_ARB_texture_cube_map", o(ARB_texture_cube_map), GLL, 1999 },
- { "GL_ARB_texture_env_add", o(dummy_true), GLL, 1999 },
- { "GL_ARB_texture_env_combine", o(ARB_texture_env_combine), GLL, 2001 },
- { "GL_ARB_texture_env_crossbar", o(ARB_texture_env_crossbar), GLL, 2001 },
- { "GL_ARB_texture_env_dot3", o(ARB_texture_env_dot3), GLL, 2001 },
- { "GL_ARB_texture_float", o(ARB_texture_float), GL, 2004 },
- { "GL_ARB_texture_mirrored_repeat", o(dummy_true), GLL, 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_storage", o(ARB_texture_storage), GL, 2011 },
- { "GL_ARB_texture_swizzle", o(EXT_texture_swizzle), GL, 2008 },
- { "GL_ARB_timer_query", o(ARB_timer_query), GL, 2010 },
- { "GL_ARB_transform_feedback2", o(ARB_transform_feedback2), GL, 2010 },
- { "GL_ARB_transform_feedback3", o(ARB_transform_feedback3), GL, 2010 },
- { "GL_ARB_transform_feedback_instanced", o(ARB_transform_feedback_instanced), GL, 2011 },
- { "GL_ARB_transpose_matrix", o(ARB_transpose_matrix), GLL, 1999 },
- { "GL_ARB_uniform_buffer_object", o(ARB_uniform_buffer_object), GL, 2009 },
- { "GL_ARB_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 },
- { "GL_ARB_vertex_array_object", o(dummy_true), GL, 2006 },
- { "GL_ARB_vertex_buffer_object", o(dummy_true), GLL, 2003 },
- { "GL_ARB_vertex_program", o(ARB_vertex_program), GLL, 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), GLL, 2001 },
- /* EXT extensions */
- { "GL_EXT_abgr", o(dummy_true), GL, 1995 },
- { "GL_EXT_bgra", o(dummy_true), GLL, 1995 },
- { "GL_EXT_blend_color", o(EXT_blend_color), GLL, 1995 },
- { "GL_EXT_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
- { "GL_EXT_blend_func_separate", o(EXT_blend_func_separate), GLL, 1999 },
- { "GL_EXT_blend_minmax", o(EXT_blend_minmax), GLL | ES1 | ES2, 1995 },
- { "GL_EXT_blend_subtract", o(dummy_true), GLL, 1995 },
- { "GL_EXT_clip_volume_hint", o(EXT_clip_volume_hint), GL, 1996 },
- { "GL_EXT_compiled_vertex_array", o(EXT_compiled_vertex_array), GLL, 1996 },
- { "GL_EXT_copy_texture", o(dummy_true), GLL, 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), GLL, 1997 },
- { "GL_EXT_fog_coord", o(EXT_fog_coord), GLL, 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), GLL, 2006 },
- { "GL_EXT_gpu_shader4", o(EXT_gpu_shader4), GL, 2006 },
- { "GL_EXT_multi_draw_arrays", o(dummy_true), GLL | 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), GLL, 1997 },
- { "GL_EXT_pixel_buffer_object", o(EXT_pixel_buffer_object), GL, 2004 },
- { "GL_EXT_point_parameters", o(EXT_point_parameters), GLL, 1997 },
- { "GL_EXT_polygon_offset", o(dummy_true), GLL, 1995 },
- { "GL_EXT_provoking_vertex", o(EXT_provoking_vertex), GL, 2009 },
- { "GL_EXT_rescale_normal", o(EXT_rescale_normal), GLL, 1997 },
- { "GL_EXT_secondary_color", o(EXT_secondary_color), GLL, 1999 },
- { "GL_EXT_separate_shader_objects", o(EXT_separate_shader_objects), GLL, 2008 },
- { "GL_EXT_separate_specular_color", o(EXT_separate_specular_color), GLL, 1997 },
- { "GL_EXT_shadow_funcs", o(EXT_shadow_funcs), GLL, 2002 },
- { "GL_EXT_stencil_two_side", o(EXT_stencil_two_side), GLL, 2001 },
- { "GL_EXT_stencil_wrap", o(dummy_true), GLL, 2002 },
- { "GL_EXT_subtexture", o(dummy_true), GLL, 1995 },
- { "GL_EXT_texture3D", o(EXT_texture3D), GLL, 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), GLL, 2001 },
- { "GL_EXT_texture_edge_clamp", o(dummy_true), GLL, 1997 },
- { "GL_EXT_texture_env_add", o(dummy_true), GLL, 1999 },
- { "GL_EXT_texture_env_combine", o(dummy_true), GLL, 2000 },
- { "GL_EXT_texture_env_dot3", o(EXT_texture_env_dot3), GLL, 2000 },
- { "GL_EXT_texture_filter_anisotropic", o(EXT_texture_filter_anisotropic), GL | ES1 | ES2, 1999 },
- { "GL_EXT_texture_format_BGRA8888", o(dummy_true), ES1 | ES2, 2005 },
- { "GL_EXT_texture_rg", o(ARB_texture_rg), ES2, 2011 },
- { "GL_EXT_read_format_bgra", o(dummy_true), ES1 | ES2, 2009 },
- { "GL_EXT_texture_integer", o(EXT_texture_integer), GL, 2006 },
- { "GL_EXT_texture_lod_bias", o(dummy_true), GLL | ES1, 1999 },
- { "GL_EXT_texture_mirror_clamp", o(EXT_texture_mirror_clamp), GL, 2004 },
- { "GL_EXT_texture_object", o(dummy_true), GLL, 1995 },
- { "GL_EXT_texture", o(dummy_true), GLL, 1996 },
- { "GL_EXT_texture_rectangle", o(NV_texture_rectangle), GLL, 2004 },
- { "GL_EXT_texture_shared_exponent", o(EXT_texture_shared_exponent), GL, 2004 },
- { "GL_EXT_texture_snorm", o(EXT_texture_snorm), GL, 2009 },
- { "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_unpack_subimage", o(dummy_true), ES2, 2011 },
- { "GL_EXT_vertex_array_bgra", o(EXT_vertex_array_bgra), GL, 2008 },
- { "GL_EXT_vertex_array", o(dummy_true), GLL, 1995 },
-
- /* 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(dummy_true), ES1, 2009 },
- { "GL_OES_byte_coordinates", o(dummy_true), ES1, 2002 },
- { "GL_OES_compressed_ETC1_RGB8_texture", o(OES_compressed_ETC1_RGB8_texture), ES1 | ES2, 2005 },
- { "GL_OES_compressed_paletted_texture", o(dummy_true), ES1, 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 },
- { "GL_OES_draw_texture", o(OES_draw_texture), ES1, 2004 },
- /* 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 },
- { "GL_OES_EGL_image_external", o(OES_EGL_image_external), ES1 | ES2, 2010 },
- { "GL_OES_element_index_uint", o(dummy_true), 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(dummy_true), 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(dummy_true), 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(dummy_true), 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(dummy_true), ES1, 2005 },
- { "GL_OES_texture_npot", o(ARB_texture_non_power_of_two), ES2, 2005 },
- { "GL_OES_vertex_array_object", o(dummy_true), ES1 | ES2, 2010 },
-
- /* Vendor extensions */
- { "GL_3DFX_texture_compression_FXT1", o(TDFX_texture_compression_FXT1), GL, 1999 },
- { "GL_AMD_conservative_depth", o(ARB_conservative_depth), GL, 2009 },
- { "GL_AMD_draw_buffers_blend", o(ARB_draw_buffers_blend), GL, 2009 },
- { "GL_AMD_seamless_cubemap_per_texture", o(AMD_seamless_cubemap_per_texture), GL, 2009 },
- { "GL_AMD_shader_stencil_export", o(ARB_shader_stencil_export), GL, 2009 },
- { "GL_APPLE_object_purgeable", o(APPLE_object_purgeable), GL, 2006 },
- { "GL_APPLE_packed_pixels", o(APPLE_packed_pixels), GLL, 2002 },
- { "GL_APPLE_texture_max_level", o(dummy_true), ES1 | ES2, 2009 },
- { "GL_APPLE_vertex_array_object", o(dummy_true), GLL, 2002 },
- { "GL_ATI_blend_equation_separate", o(EXT_blend_equation_separate), GL, 2003 },
- { "GL_ATI_draw_buffers", o(dummy_true), GLL, 2002 },
- { "GL_ATI_envmap_bumpmap", o(ATI_envmap_bumpmap), GLL, 2001 },
- { "GL_ATI_fragment_shader", o(ATI_fragment_shader), GLL, 2001 },
- { "GL_ATI_separate_stencil", o(ATI_separate_stencil), GLL, 2006 },
- { "GL_ATI_texture_compression_3dc", o(ATI_texture_compression_3dc), GL, 2004 },
- { "GL_ATI_texture_env_combine3", o(ATI_texture_env_combine3), GLL, 2002 },
- { "GL_ATI_texture_float", o(ARB_texture_float), 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(dummy_true), GLL, 1998 },
- { "GL_INGR_blend_func_separate", o(EXT_blend_func_separate), GLL, 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), GLL, 2007 },
- { "GL_MESA_texture_signed_rgba", o(EXT_texture_snorm), GL, 2009 },
- { "GL_MESA_window_pos", o(ARB_window_pos), GLL, 2000 },
- { "GL_MESA_ycbcr_texture", o(MESA_ycbcr_texture), GL, 2002 },
- { "GL_NV_blend_square", o(NV_blend_square), GLL, 1999 },
- { "GL_NV_conditional_render", o(NV_conditional_render), GL, 2008 },
- { "GL_NV_depth_clamp", o(ARB_depth_clamp), GL, 2001 },
- { "GL_NV_draw_buffers", o(dummy_true), ES2, 2011 },
- { "GL_NV_fbo_color_attachments", o(EXT_framebuffer_object), ES2, 2010 },
- { "GL_NV_fog_distance", o(NV_fog_distance), GLL, 2001 },
- { "GL_NV_fragment_program", o(NV_fragment_program), GLL, 2001 },
- { "GL_NV_fragment_program_option", o(NV_fragment_program_option), GLL, 2005 },
- { "GL_NV_light_max_exponent", o(NV_light_max_exponent), GLL, 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_read_buffer", o(dummy_true), ES2, 2011 },
- { "GL_NV_texgen_reflection", o(NV_texgen_reflection), GLL, 1999 },
- { "GL_NV_texture_barrier", o(NV_texture_barrier), GL, 2009 },
- { "GL_NV_texture_env_combine4", o(NV_texture_env_combine4), GLL, 1999 },
- { "GL_NV_texture_rectangle", o(NV_texture_rectangle), GLL, 2000 },
- { "GL_NV_vertex_program1_1", o(NV_vertex_program1_1), GLL, 2001 },
- { "GL_NV_vertex_program", o(NV_vertex_program), GLL, 2000 },
- { "GL_S3_s3tc", o(S3_s3tc), GL, 1999 },
- { "GL_SGIS_generate_mipmap", o(dummy_true), GLL, 1997 },
- { "GL_SGIS_texture_border_clamp", o(ARB_texture_border_clamp), GLL, 1997 },
- { "GL_SGIS_texture_edge_clamp", o(dummy_true), GLL, 1997 },
- { "GL_SGIS_texture_lod", o(SGIS_texture_lod), GLL, 1997 },
- { "GL_SUN_multi_draw_arrays", o(dummy_true), GLL, 1999 },
-
- { 0, 0, 0, 0 },
+const struct mesa_extension _mesa_extension_table[] = {
+#define EXT(name_str, driver_cap, gll_ver, glc_ver, gles_ver, gles2_ver, yyyy) \
+ { .name = "GL_" #name_str, .offset = o(driver_cap), \
+ .version = { \
+ [API_OPENGL_COMPAT] = gll_ver, \
+ [API_OPENGL_CORE] = glc_ver, \
+ [API_OPENGLES] = gles_ver, \
+ [API_OPENGLES2] = gles2_ver, \
+ }, \
+ .year = yyyy \
+ },
+#include "extensions_table.h"
+#undef EXT
};
+static bool disabled_extensions[ARRAY_SIZE(_mesa_extension_table)];
/**
* 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.
+ * gl_extensions and return that member's index. If the name is
+ * not found in the \c _mesa_extension_table, return -1.
*
* \param name Name of extension.
- * \return Offset of member in struct gl_extensions.
+ * \return Index of member in struct gl_extensions.
*/
-static size_t
-name_to_offset(const char* name)
+static int
+name_to_index(const char* name)
{
- const struct extension *i;
+ unsigned i;
if (name == 0)
- return 0;
+ return -1;
- for (i = extension_table; i->name != 0; ++i) {
- if (strcmp(name, i->name) == 0)
- return i->offset;
+ for (i = 0; i < ARRAY_SIZE(_mesa_extension_table); ++i) {
+ if (strcmp(name, _mesa_extension_table[i].name) == 0)
+ return i;
}
- return 0;
+ return -1;
}
-
/**
- * \brief Extensions enabled by default.
- *
- * These extensions are enabled by _mesa_init_extensions().
- *
- * XXX: Should these defaults also apply to GLES?
+ * Overrides extensions in \c ctx based on the values in
+ * _mesa_extension_override_enables and _mesa_extension_override_disables.
*/
-static const size_t default_extensions[] = {
- o(ARB_copy_buffer),
- o(ARB_transpose_matrix),
- o(ARB_window_pos),
-
- o(EXT_compiled_vertex_array),
- o(EXT_draw_range_elements),
- o(EXT_packed_pixels),
- o(EXT_rescale_normal),
- o(EXT_separate_specular_color),
- o(EXT_texture3D),
-
- 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_texture_lod),
-
- 0,
-};
+static void
+override_extensions_in_context(struct gl_context *ctx)
+{
+ unsigned i;
+ const GLboolean *enables =
+ (GLboolean*) &_mesa_extension_override_enables;
+ const GLboolean *disables =
+ (GLboolean*) &_mesa_extension_override_disables;
+ GLboolean *ctx_ext = (GLboolean*)&ctx->Extensions;
+
+ for (i = 0; i < ARRAY_SIZE(_mesa_extension_table); ++i) {
+ size_t offset = _mesa_extension_table[i].offset;
+
+ assert(!enables[offset] || !disables[offset]);
+ if (enables[offset]) {
+ ctx_ext[offset] = 1;
+ } else if (disables[offset]) {
+ ctx_ext[offset] = 0;
+ }
+ }
+}
/**
void
_mesa_enable_sw_extensions(struct gl_context *ctx)
{
- /*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_elements_base_vertex = GL_TRUE;
ctx->Extensions.ARB_fragment_program = GL_TRUE;
ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
-#if FEATURE_ARB_framebuffer_object
ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
-#endif
- /* XXX re-enable when GLSL compiler again supports geometry shaders */
-#if 0
- 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_map_buffer_range = GL_TRUE;
ctx->Extensions.ARB_occlusion_query = GL_TRUE;
ctx->Extensions.ARB_occlusion_query2 = GL_TRUE;
ctx->Extensions.ARB_point_sprite = GL_TRUE;
- ctx->Extensions.ARB_shader_objects = GL_TRUE;
- ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
- ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
ctx->Extensions.ARB_shadow = GL_TRUE;
ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
+ ctx->Extensions.ARB_texture_compression_bptc = 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;*/
+#ifdef TEXTURE_FLOAT_ENABLED
+ ctx->Extensions.ARB_texture_float = GL_TRUE;
+#endif
+ ctx->Extensions.ARB_texture_mirror_clamp_to_edge = 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_texture_storage = GL_TRUE;
ctx->Extensions.ARB_vertex_program = GL_TRUE;
ctx->Extensions.ARB_vertex_shader = GL_TRUE;
-#if FEATURE_ARB_sync
ctx->Extensions.ARB_sync = GL_TRUE;
-#endif
-#if FEATURE_APPLE_object_purgeable
ctx->Extensions.APPLE_object_purgeable = GL_TRUE;
-#endif
- ctx->Extensions.ATI_envmap_bumpmap = 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.EXT_blend_minmax = GL_TRUE;
ctx->Extensions.EXT_depth_bounds_test = GL_TRUE;
ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
- ctx->Extensions.EXT_fog_coord = GL_TRUE;
- ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
-#if FEATURE_EXT_framebuffer_blit
- ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
-#endif
-#if FEATURE_ARB_framebuffer_object
- ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
-#endif
- ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
ctx->Extensions.EXT_point_parameters = GL_TRUE;
ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
- ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
- ctx->Extensions.EXT_secondary_color = 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_filter_anisotropic = GL_TRUE;
ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
ctx->Extensions.EXT_texture_shared_exponent = 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;*/
-#endif
ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
- /*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/
ctx->Extensions.MESA_pack_invert = GL_TRUE;
- 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_conditional_render = GL_TRUE;
- /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/
ctx->Extensions.NV_point_sprite = GL_TRUE;
ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
ctx->Extensions.NV_texture_rectangle = GL_TRUE;
- /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/
- ctx->Extensions.NV_vertex_program = GL_TRUE;
- ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
- ctx->Extensions.NV_fragment_program = GL_TRUE;
- ctx->Extensions.NV_fragment_program_option = GL_TRUE;
ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
- _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1");
+ ctx->Extensions.OES_standard_derivatives = GL_TRUE;
+ ctx->Extensions.TDFX_texture_compression_FXT1 = GL_TRUE;
if (ctx->Mesa_DXTn) {
- _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
- _mesa_enable_extension(ctx, "GL_S3_s3tc");
+ ctx->Extensions.ANGLE_texture_compression_dxt = GL_TRUE;
+ ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
}
}
-
-/**
- * Enable all OpenGL 1.3 features and extensions.
- * A convenience function to be called by drivers.
- */
-void
-_mesa_enable_1_3_extensions(struct gl_context *ctx)
-{
- 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_dot3 = 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(struct gl_context *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_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_fog_coord = GL_TRUE;
- ctx->Extensions.EXT_point_parameters = GL_TRUE;
- ctx->Extensions.EXT_secondary_color = GL_TRUE;
-}
-
-
-/**
- * Enable all OpenGL 1.5 features and extensions.
- * A convenience function to be called by drivers.
- */
-void
-_mesa_enable_1_5_extensions(struct gl_context *ctx)
-{
- ctx->Extensions.ARB_occlusion_query = 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(struct gl_context *ctx)
-{
- ctx->Extensions.ARB_fragment_shader = GL_TRUE;
- ctx->Extensions.ARB_point_sprite = GL_TRUE;
- ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
- ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
- ctx->Extensions.ARB_shader_objects = GL_TRUE;
- ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
- ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
- ctx->Extensions.ARB_vertex_shader = GL_TRUE;
-}
-
-
-/**
- * Enable all OpenGL 2.1 features and extensions.
- * A convenience function to be called by drivers.
- */
-void
-_mesa_enable_2_1_extensions(struct gl_context *ctx)
-{
- ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
-#if FEATURE_EXT_texture_sRGB
- ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
-#endif
-}
-
-
/**
* Either enable or disable the named extension.
- * \return GL_TRUE for success, GL_FALSE if invalid extension name
+ * \return offset of extensions withint `ext' or 0 if extension is not known
*/
-static GLboolean
-set_extension( struct gl_context *ctx, const char *name, GLboolean state )
+static size_t
+set_extension(struct gl_extensions *ext, int i, GLboolean state)
{
size_t offset;
- 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;
+ offset = i < 0 ? 0 : _mesa_extension_table[i].offset;
+ if (offset != 0 && (offset != o(dummy_true) || state != GL_FALSE)) {
+ ((GLboolean *) ext)[offset] = state;
}
- 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 offset;
}
-
/**
- * Enable the named extension.
- * Typically called by drivers.
+ * \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.
+ *
+ * \c MESA_EXTENSION_OVERRIDE was previously parsed during
+ * _mesa_one_time_init_extension_overrides. We just use the results of that
+ * parsing in this function.
+ *
+ * \return Space-separated list of unrecognized extension names (which must
+ * be freed). Does not return \c NULL.
*/
-void
-_mesa_enable_extension( struct gl_context *ctx, const char *name )
+static char *
+get_extension_override( struct gl_context *ctx )
{
- if (!set_extension(ctx, name, GL_TRUE))
- _mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
-}
+ override_extensions_in_context(ctx);
-
-/**
- * Disable the named extension.
- * XXX is this really needed???
- */
-void
-_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);
+ if (extra_extensions == NULL) {
+ return calloc(1, sizeof(char));
+ } else {
+ _mesa_problem(ctx, "Trying to enable unknown extensions: %s",
+ extra_extensions);
+ return strdup(extra_extensions);
+ }
}
/**
- * Test if the named extension is enabled in this context.
+ * \brief Free extra_extensions string
+ *
+ * These strings are allocated early during the first context creation by
+ * _mesa_one_time_init_extension_overrides.
*/
-GLboolean
-_mesa_extension_is_enabled( struct gl_context *ctx, const char *name )
+static void
+free_unknown_extensions_strings(void)
{
- 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];
+ free(extra_extensions);
}
/**
- * \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.
+ * \brief Initialize extension override tables.
*
- * \return Space-separated list of unrecognized extension names (which must
- * be freed). Does not return \c NULL.
+ * This should be called one time early during first context initialization.
*/
-static char *
-get_extension_override( struct gl_context *ctx )
+void
+_mesa_one_time_init_extension_overrides(void)
{
- const char *env_const = _mesa_getenv("MESA_EXTENSION_OVERRIDE");
+ const char *env_const = getenv("MESA_EXTENSION_OVERRIDE");
char *env;
char *ext;
- char *extra_exts;
int len;
+ size_t offset;
+
+ atexit(free_unknown_extensions_strings);
+
+ memset(&_mesa_extension_override_enables, 0, sizeof(struct gl_extensions));
+ memset(&_mesa_extension_override_disables, 0, sizeof(struct gl_extensions));
if (env_const == NULL) {
- /* Return the empty string rather than NULL. This simplifies the logic
- * of client functions. */
- return calloc(4, sizeof(char));
+ return;
}
/* extra_exts: List of unrecognized extensions. */
- extra_exts = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
+ extra_extensions = calloc(ALIGN(strlen(env_const) + 2, 4), sizeof(char));
/* Copy env_const because strtok() is destructive. */
env = strdup(env_const);
+
+ if (env == NULL ||
+ extra_extensions == NULL) {
+ free(env);
+ free(extra_extensions);
+ return;
+ }
+
for (ext = strtok(env, " "); ext != NULL; ext = strtok(NULL, " ")) {
int enable;
- int recognized;
+ int i;
+ bool recognized;
switch (ext[0]) {
case '+':
enable = 1;
enable = 1;
break;
}
- recognized = set_extension(ctx, ext, enable);
- if (!recognized) {
- strcat(extra_exts, ext);
- strcat(extra_exts, " ");
+
+ i = name_to_index(ext);
+ offset = set_extension(&_mesa_extension_override_enables, i, enable);
+ if (offset != 0 && (offset != o(dummy_true) || enable != GL_FALSE)) {
+ ((GLboolean *) &_mesa_extension_override_disables)[offset] = !enable;
+ recognized = true;
+ } else {
+ recognized = false;
+ }
+
+ if (i >= 0)
+ disabled_extensions[i] = !enable;
+
+ if (!recognized && enable) {
+ strcat(extra_extensions, ext);
+ strcat(extra_extensions, " ");
}
}
free(env);
- /* Remove trailing space. */
- len = strlen(extra_exts);
- if (len > 0 && extra_exts[len - 1] == ' ')
- extra_exts[len - 1] = '\0';
-
- return extra_exts;
+ /* Remove trailing space, and free if unused. */
+ len = strlen(extra_extensions);
+ if (len == 0) {
+ free(extra_extensions);
+ extra_extensions = NULL;
+ } else if (extra_extensions[len - 1] == ' ') {
+ extra_extensions[len - 1] = '\0';
+ }
}
* Note: Sets gl_extensions.dummy_true to true.
*/
void
-_mesa_init_extensions( struct gl_context *ctx )
+_mesa_init_extensions(struct gl_extensions *extensions)
{
- GLboolean *base = (GLboolean *) &ctx->Extensions;
+ GLboolean *base = (GLboolean *) 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;
+ extensions->dummy_true = GL_TRUE;
}
typedef unsigned short extension_index;
+/**
+ * Given an extension enum, return whether or not the extension is supported
+ * dependent on the following factors:
+ * There's driver support and the OpenGL/ES version is at least that
+ * specified in the _mesa_extension_table.
+ */
+static inline bool
+_mesa_extension_supported(const struct gl_context *ctx, extension_index i)
+{
+ const bool *base = (bool *) &ctx->Extensions;
+ const struct mesa_extension *ext = _mesa_extension_table + i;
+
+ return !disabled_extensions[i] &&
+ (ctx->Version >= ext->version[ctx->API]) && base[ext->offset];
+}
+
/**
* Compare two entries of the extensions table. Sorts first by year,
* then by name.
*
- * Arguments are indices into extension_table.
+ * Arguments are indices into _mesa_extension_table.
*/
static int
extension_compare(const void *p1, const void *p2)
{
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];
+ const struct mesa_extension *e1 = &_mesa_extension_table[i1];
+ const struct mesa_extension *e2 = &_mesa_extension_table[i2];
int res;
res = (int)e1->year - (int)e2->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 k;
unsigned j;
unsigned maxYear = ~0;
/* Compute length of the extension string. */
count = 0;
- for (i = extension_table; i->name != 0; ++i) {
- if (base[i->offset] &&
- i->year <= maxYear &&
- (i->api_set & (1 << ctx->API))) {
+ for (k = 0; k < ARRAY_SIZE(_mesa_extension_table); ++k) {
+ const struct mesa_extension *i = _mesa_extension_table + k;
+
+ if (i->year <= maxYear &&
+ _mesa_extension_supported(ctx, k)) {
length += strlen(i->name) + 1; /* +1 for space */
++count;
}
return NULL;
}
- /* 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.
+ /* 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->year <= maxYear &&
- (i->api_set & (1 << ctx->API))) {
- extension_indices[j++] = i - extension_table;
+ for (k = 0; k < ARRAY_SIZE(_mesa_extension_table); ++k) {
+ if (_mesa_extension_table[k].year <= maxYear &&
+ _mesa_extension_supported(ctx, k)) {
+ extension_indices[j++] = k;
}
}
assert(j == count);
- qsort(extension_indices, count, sizeof *extension_indices, extension_compare);
+ 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)));
+ const struct mesa_extension *i = &_mesa_extension_table[extension_indices[j]];
+ assert(_mesa_extension_supported(ctx, extension_indices[j]));
strcat(exts, i->name);
strcat(exts, " ");
}
GLuint
_mesa_get_extension_count(struct gl_context *ctx)
{
- GLboolean *base;
- const struct extension *i;
+ unsigned k;
/* only count once */
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] && (i->api_set & (1 << ctx->API))) {
+ for (k = 0; k < ARRAY_SIZE(_mesa_extension_table); ++k) {
+ if (_mesa_extension_supported(ctx, k))
ctx->Extensions.Count++;
- }
}
return ctx->Extensions.Count;
}
const GLubyte *
_mesa_get_enabled_extension(struct gl_context *ctx, GLuint index)
{
- const GLboolean *base;
- size_t n;
- const struct extension *i;
-
- base = (GLboolean*) &ctx->Extensions;
- n = 0;
- for (i = extension_table; i->name != 0; ++i) {
- if (base[i->offset] & (i->api_set & (1 << ctx->API))) {
+ size_t n = 0;
+ unsigned i;
+
+ for (i = 0; i < ARRAY_SIZE(_mesa_extension_table); ++i) {
+ if (_mesa_extension_supported(ctx, i)) {
if (n == index)
- return (const GLubyte*) i->name;
+ return (const GLubyte*) _mesa_extension_table[i].name;
else
++n;
}