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+/*
+ * (C) Copyright IBM Corporation 2002, 2004
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 (including the next
+ * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS 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.
+ */
+
+/**
+ * \file glxextensions.h
+ *
+ * \author Ian Romanick <idr@us.ibm.com>
+ */
+
+#ifndef GLX_GLXEXTENSIONS_H
+#define GLX_GLXEXTENSIONS_H
+
+enum {
+ ARB_get_proc_address_bit = 0,
+ ARB_multisample_bit,
+ ARB_render_texture_bit,
+ ATI_pixel_format_float_bit,
+ EXT_visual_info_bit,
+ EXT_visual_rating_bit,
+ EXT_import_context_bit,
+ MESA_agp_offset_bit,
+ MESA_allocate_memory_bit, /* Replaces MESA_agp_offset & NV_vertex_array_range */
+ MESA_copy_sub_buffer_bit,
+ MESA_depth_float_bit,
+ MESA_pixmap_colormap_bit,
+ MESA_release_buffers_bit,
+ MESA_set_3dfx_mode_bit,
+ MESA_swap_control_bit,
+ MESA_swap_frame_usage_bit,
+ NV_float_buffer_bit,
+ NV_render_depth_texture_bit,
+ NV_render_texture_rectangle_bit,
+ NV_vertex_array_range_bit,
+ OML_swap_method_bit,
+ OML_sync_control_bit,
+ SGI_cushion_bit,
+ SGI_make_current_read_bit,
+ SGI_swap_control_bit,
+ SGI_video_sync_bit,
+ SGIS_blended_overlay_bit,
+ SGIS_color_range_bit,
+ SGIS_multisample_bit,
+ SGIX_dm_buffer_bit,
+ SGIX_fbconfig_bit,
+ SGIX_pbuffer_bit,
+ SGIX_swap_barrier_bit,
+ SGIX_swap_group_bit,
+ SGIX_video_resize_bit,
+ SGIX_video_source_bit,
+ SGIX_visual_select_group_bit,
+ SUN_get_transparent_index_bit,
+ EXT_texture_from_pixmap_bit
+};
+
+enum {
+ GL_ARB_depth_texture_bit = 0,
+ GL_ARB_draw_buffers_bit,
+ GL_ARB_fragment_program_bit,
+ GL_ARB_fragment_program_shadow_bit,
+ GL_ARB_imaging_bit,
+ GL_ARB_multisample_bit,
+ GL_ARB_multitexture_bit,
+ GL_ARB_occlusion_query_bit,
+ GL_ARB_point_parameters_bit,
+ GL_ARB_point_sprite_bit,
+ GL_ARB_shadow_bit,
+ GL_ARB_shadow_ambient_bit,
+ GL_ARB_texture_border_clamp_bit,
+ GL_ARB_texture_cube_map_bit,
+ GL_ARB_texture_compression_bit,
+ GL_ARB_texture_env_add_bit,
+ GL_ARB_texture_env_combine_bit,
+ GL_ARB_texture_env_crossbar_bit,
+ GL_ARB_texture_env_dot3_bit,
+ GL_ARB_texture_mirrored_repeat_bit,
+ GL_ARB_texture_non_power_of_two_bit,
+ GL_ARB_texture_rectangle_bit,
+ GL_ARB_transpose_matrix_bit,
+ GL_ARB_vertex_buffer_object_bit,
+ GL_ARB_vertex_program_bit,
+ GL_ARB_window_pos_bit,
+ GL_EXT_abgr_bit,
+ GL_EXT_bgra_bit,
+ GL_EXT_blend_color_bit,
+ GL_EXT_blend_equation_separate_bit,
+ GL_EXT_blend_func_separate_bit,
+ GL_EXT_blend_logic_op_bit,
+ GL_EXT_blend_minmax_bit,
+ GL_EXT_blend_subtract_bit,
+ GL_EXT_clip_volume_hint_bit,
+ GL_EXT_compiled_vertex_array_bit,
+ GL_EXT_convolution_bit,
+ GL_EXT_copy_texture_bit,
+ GL_EXT_cull_vertex_bit,
+ GL_EXT_depth_bounds_test_bit,
+ GL_EXT_draw_range_elements_bit,
+ GL_EXT_fog_coord_bit,
+ GL_EXT_framebuffer_object_bit,
+ GL_EXT_multi_draw_arrays_bit,
+ GL_EXT_packed_pixels_bit,
+ GL_EXT_paletted_texture_bit,
+ GL_EXT_pixel_buffer_object_bit,
+ GL_EXT_polygon_offset_bit,
+ GL_EXT_rescale_normal_bit,
+ GL_EXT_secondary_color_bit,
+ GL_EXT_separate_specular_color_bit,
+ GL_EXT_shadow_funcs_bit,
+ GL_EXT_shared_texture_palette_bit,
+ GL_EXT_stencil_two_side_bit,
+ GL_EXT_stencil_wrap_bit,
+ GL_EXT_subtexture_bit,
+ GL_EXT_texture_bit,
+ GL_EXT_texture3D_bit,
+ GL_EXT_texture_compression_dxt1_bit,
+ GL_EXT_texture_compression_s3tc_bit,
+ GL_EXT_texture_edge_clamp_bit,
+ GL_EXT_texture_env_combine_bit,
+ GL_EXT_texture_env_dot3_bit,
+ GL_EXT_texture_filter_anisotropic_bit,
+ GL_EXT_texture_lod_bit,
+ GL_EXT_texture_lod_bias_bit,
+ GL_EXT_texture_mirror_clamp_bit,
+ GL_EXT_texture_object_bit,
+ GL_EXT_vertex_array_bit,
+ GL_3DFX_texture_compression_FXT1_bit,
+ GL_APPLE_packed_pixels_bit,
+ GL_APPLE_ycbcr_422_bit,
+ GL_ATI_text_fragment_shader_bit,
+ GL_ATI_texture_env_combine3_bit,
+ GL_ATI_texture_float_bit,
+ GL_ATI_texture_mirror_once_bit,
+ GL_HP_convolution_border_modes_bit,
+ GL_HP_occlusion_test_bit,
+ GL_IBM_cull_vertex_bit,
+ GL_IBM_pixel_filter_hint_bit,
+ GL_IBM_rasterpos_clip_bit,
+ GL_IBM_texture_clamp_nodraw_bit,
+ GL_INGR_interlace_read_bit,
+ GL_MESA_pack_invert_bit,
+ GL_MESA_ycbcr_texture_bit,
+ GL_NV_blend_square_bit,
+ GL_NV_copy_depth_to_color_bit,
+ GL_NV_depth_clamp_bit,
+ GL_NV_fog_distance_bit,
+ GL_NV_fragment_program_bit,
+ GL_NV_fragment_program_option_bit,
+ GL_NV_fragment_program2_bit,
+ GL_NV_light_max_exponent_bit,
+ GL_NV_multisample_filter_hint_bit,
+ GL_NV_point_sprite_bit,
+ GL_NV_texgen_reflection_bit,
+ GL_NV_texture_compression_vtc_bit,
+ GL_NV_texture_env_combine4_bit,
+ GL_NV_vertex_program_bit,
+ GL_NV_vertex_program1_1_bit,
+ GL_NV_vertex_program2_bit,
+ GL_NV_vertex_program2_option_bit,
+ GL_NV_vertex_program3_bit,
+ GL_OES_compressed_paletted_texture_bit,
+ GL_OES_read_format_bit,
+ GL_SGI_color_matrix_bit,
+ GL_SGI_texture_color_table_bit,
+ GL_SGIS_generate_mipmap_bit,
+ GL_SGIS_multisample_bit,
+ GL_SGIS_texture_lod_bit,
+ GL_SGIX_blend_alpha_minmax_bit,
+ GL_SGIX_clipmap_bit,
+ GL_SGIX_depth_texture_bit,
+ GL_SGIX_fog_offset_bit,
+ GL_SGIX_shadow_bit,
+ GL_SGIX_texture_coordinate_clamp_bit,
+ GL_SGIX_texture_lod_bias_bit,
+ GL_SGIX_texture_range_bit,
+ GL_SGIX_texture_scale_bias_bit,
+ GL_SGIX_vertex_preclip_bit,
+ GL_SGIX_vertex_preclip_hint_bit,
+ GL_SGIX_ycrcb_bit,
+ GL_SUN_convolution_border_modes_bit,
+ GL_SUN_slice_accum_bit,
+
+ /* This *MUST* go here. If it gets put after the duplicate values it will
+ * get the value after the last duplicate.
+ */
+ __NUM_GL_EXTS,
+
+
+ /* Alias extension bits. These extensions exist in either vendor-specific
+ * or EXT form and were later promoted to either EXT or ARB form. In all
+ * cases, the meaning is *exactly* the same. That's why
+ * EXT_texture_env_combine is *NOT* an alias of ARB_texture_env_combine and
+ * EXT_texture_env_dot3 is *NOT* an alias of ARB_texture_env_dot3. Be
+ * careful! When in doubt, src/mesa/main/extensions.c in the Mesa tree
+ * is a great reference.
+ */
+
+ GL_ATI_blend_equation_separate_bit = GL_EXT_blend_equation_separate_bit,
+ GL_ATI_draw_buffers_bit = GL_ARB_draw_buffers_bit,
+ GL_ATIX_texture_env_combine3_bit = GL_ATI_texture_env_combine3_bit,
+ GL_EXT_point_parameters_bit = GL_ARB_point_parameters_bit,
+ GL_EXT_texture_env_add_bit = GL_ARB_texture_env_add_bit,
+ GL_EXT_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
+ GL_IBM_texture_mirrored_repeat_bit = GL_ARB_texture_mirrored_repeat_bit,
+ GL_INGR_blend_func_separate_bit = GL_EXT_blend_func_separate_bit,
+ GL_MESA_window_pos_bit = GL_ARB_window_pos_bit,
+ GL_NV_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
+ GL_SGIS_texture_border_clamp_bit = GL_ARB_texture_border_clamp_bit,
+ GL_SGIS_texture_edge_clamp_bit = GL_EXT_texture_edge_clamp_bit,
+ GL_SGIX_shadow_ambient_bit = GL_ARB_shadow_ambient_bit,
+ GL_SUN_multi_draw_arrays_bit = GL_EXT_multi_draw_arrays_bit
+};
+
+#define __GL_EXT_BYTES ((__NUM_GL_EXTS + 7) / 8)
+
+struct __GLXscreenConfigsRec;
+struct __GLXcontextRec;
+
+extern GLboolean __glXExtensionBitIsEnabled( struct __GLXscreenConfigsRec *psc, unsigned bit );
+extern const char * __glXGetClientExtensions( void );
+extern void __glXCalculateUsableExtensions( struct __GLXscreenConfigsRec *psc,
+ GLboolean display_is_direct_capable, int server_minor_version );
+extern void __glXScrEnableExtension( struct __GLXscreenConfigsRec *psc, const char * name );
+extern void __glXCalculateUsableGLExtensions( struct __GLXcontextRec * gc,
+ const char * server_string, int major_version, int minor_version );
+extern void __glXGetGLVersion( int * major_version, int * minor_version );
+extern char * __glXGetClientGLExtensionString( void );
+
+extern GLboolean __glExtensionBitIsEnabled( const struct __GLXcontextRec * gc,
+ unsigned bit );
+
+
+/* Source-level backwards compatibility with old drivers. They won't
+ * find the respective functions, though.
+ */
+typedef void (* PFNGLXENABLEEXTENSIONPROC) ( const char * name,
+ GLboolean force_client );
+typedef void (* PFNGLXDISABLEEXTENSIONPROC) ( const char * name );
+
+/* GLX_ALIAS should be used for functions with a non-void return type.
+ GLX_ALIAS_VOID is for functions with a void return type. */
+#ifdef GLX_NO_STATIC_EXTENSION_FUNCTIONS
+# define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func)
+# define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func)
+#else
+# if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
+# define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
+ return_type real_func proto_args \
+ __attribute__ ((alias( # aliased_func ) ));
+# define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
+ GLX_ALIAS(void, real_func, proto_args, args, aliased_func)
+# else
+# define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
+ return_type real_func proto_args \
+ { return aliased_func args ; }
+# define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
+ void real_func proto_args \
+ { aliased_func args ; }
+# endif /* __GNUC__ */
+#endif /* GLX_NO_STATIC_EXTENSION_FUNCTIONS */
+
+#endif /* GLX_GLXEXTENSIONS_H */