glxextensions.h revision c9d25cf73fceebf55d5b1bbe0f3f6704a45223b5 
1/*
2 * (C) Copyright IBM Corporation 2002, 2004
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25/**
26 * \file glxextensions.h
27 *
28 * \author Ian Romanick <idr@us.ibm.com>
29 */
30
31#ifndef GLX_GLXEXTENSIONS_H
32#define GLX_GLXEXTENSIONS_H
33
34enum
35{
36   ARB_create_context_bit = 0,
37   ARB_create_context_profile_bit,
38   ARB_get_proc_address_bit,
39   ARB_multisample_bit,
40   ATI_pixel_format_float_bit,
41   EXT_visual_info_bit,
42   EXT_visual_rating_bit,
43   EXT_import_context_bit,
44   EXT_framebuffer_sRGB_bit,
45   MESA_copy_sub_buffer_bit,
46   MESA_depth_float_bit,
47   MESA_multithread_makecurrent_bit,
48   MESA_swap_control_bit,
49   MESA_swap_frame_usage_bit,
50   NV_float_buffer_bit,
51   OML_swap_method_bit,
52   OML_sync_control_bit,
53   SGI_make_current_read_bit,
54   SGI_swap_control_bit,
55   SGI_video_sync_bit,
56   SGIS_multisample_bit,
57   SGIX_fbconfig_bit,
58   SGIX_pbuffer_bit,
59   SGIX_swap_barrier_bit,
60   SGIX_swap_group_bit,
61   SGIX_visual_select_group_bit,
62   EXT_texture_from_pixmap_bit,
63   INTEL_swap_event_bit,
64};
65
66enum
67{
68   GL_ARB_depth_texture_bit = 0,
69   GL_ARB_draw_buffers_bit,
70   GL_ARB_fragment_program_bit,
71   GL_ARB_fragment_program_shadow_bit,
72   GL_ARB_framebuffer_object_bit,
73   GL_ARB_imaging_bit,
74   GL_ARB_multisample_bit,
75   GL_ARB_multitexture_bit,
76   GL_ARB_occlusion_query_bit,
77   GL_ARB_point_parameters_bit,
78   GL_ARB_point_sprite_bit,
79   GL_ARB_shadow_bit,
80   GL_ARB_shadow_ambient_bit,
81   GL_ARB_texture_border_clamp_bit,
82   GL_ARB_texture_cube_map_bit,
83   GL_ARB_texture_compression_bit,
84   GL_ARB_texture_env_add_bit,
85   GL_ARB_texture_env_combine_bit,
86   GL_ARB_texture_env_crossbar_bit,
87   GL_ARB_texture_env_dot3_bit,
88   GL_ARB_texture_mirrored_repeat_bit,
89   GL_ARB_texture_non_power_of_two_bit,
90   GL_ARB_texture_rectangle_bit,
91   GL_ARB_texture_rg_bit,
92   GL_ARB_transpose_matrix_bit,
93   GL_ARB_vertex_buffer_object_bit,
94   GL_ARB_vertex_program_bit,
95   GL_ARB_window_pos_bit,
96   GL_EXT_abgr_bit,
97   GL_EXT_bgra_bit,
98   GL_EXT_blend_color_bit,
99   GL_EXT_blend_equation_separate_bit,
100   GL_EXT_blend_func_separate_bit,
101   GL_EXT_blend_logic_op_bit,
102   GL_EXT_blend_minmax_bit,
103   GL_EXT_blend_subtract_bit,
104   GL_EXT_clip_volume_hint_bit,
105   GL_EXT_compiled_vertex_array_bit,
106   GL_EXT_convolution_bit,
107   GL_EXT_copy_texture_bit,
108   GL_EXT_cull_vertex_bit,
109   GL_EXT_depth_bounds_test_bit,
110   GL_EXT_draw_range_elements_bit,
111   GL_EXT_fog_coord_bit,
112   GL_EXT_framebuffer_blit_bit,
113   GL_EXT_framebuffer_multisample_bit,
114   GL_EXT_framebuffer_object_bit,
115   GL_EXT_framebuffer_sRGB_bit,
116   GL_EXT_multi_draw_arrays_bit,
117   GL_EXT_packed_depth_stencil_bit,
118   GL_EXT_packed_pixels_bit,
119   GL_EXT_paletted_texture_bit,
120   GL_EXT_pixel_buffer_object_bit,
121   GL_EXT_polygon_offset_bit,
122   GL_EXT_rescale_normal_bit,
123   GL_EXT_secondary_color_bit,
124   GL_EXT_separate_specular_color_bit,
125   GL_EXT_shadow_funcs_bit,
126   GL_EXT_shared_texture_palette_bit,
127   GL_EXT_stencil_two_side_bit,
128   GL_EXT_stencil_wrap_bit,
129   GL_EXT_subtexture_bit,
130   GL_EXT_texture_bit,
131   GL_EXT_texture3D_bit,
132   GL_EXT_texture_compression_dxt1_bit,
133   GL_EXT_texture_compression_s3tc_bit,
134   GL_EXT_texture_edge_clamp_bit,
135   GL_EXT_texture_env_combine_bit,
136   GL_EXT_texture_env_dot3_bit,
137   GL_EXT_texture_filter_anisotropic_bit,
138   GL_EXT_texture_lod_bit,
139   GL_EXT_texture_lod_bias_bit,
140   GL_EXT_texture_mirror_clamp_bit,
141   GL_EXT_texture_object_bit,
142   GL_EXT_vertex_array_bit,
143   GL_3DFX_texture_compression_FXT1_bit,
144   GL_APPLE_packed_pixels_bit,
145   GL_APPLE_ycbcr_422_bit,
146   GL_ATI_text_fragment_shader_bit,
147   GL_ATI_texture_env_combine3_bit,
148   GL_ATI_texture_float_bit,
149   GL_ATI_texture_mirror_once_bit,
150   GL_HP_convolution_border_modes_bit,
151   GL_HP_occlusion_test_bit,
152   GL_IBM_cull_vertex_bit,
153   GL_IBM_pixel_filter_hint_bit,
154   GL_IBM_rasterpos_clip_bit,
155   GL_IBM_texture_clamp_nodraw_bit,
156   GL_INGR_interlace_read_bit,
157   GL_MESA_pack_invert_bit,
158   GL_MESA_ycbcr_texture_bit,
159   GL_NV_blend_square_bit,
160   GL_NV_copy_depth_to_color_bit,
161   GL_NV_depth_clamp_bit,
162   GL_NV_fog_distance_bit,
163   GL_NV_fragment_program_bit,
164   GL_NV_fragment_program_option_bit,
165   GL_NV_fragment_program2_bit,
166   GL_NV_light_max_exponent_bit,
167   GL_NV_multisample_filter_hint_bit,
168   GL_NV_packed_depth_stencil_bit,
169   GL_NV_point_sprite_bit,
170   GL_NV_texgen_reflection_bit,
171   GL_NV_texture_compression_vtc_bit,
172   GL_NV_texture_env_combine4_bit,
173   GL_NV_vertex_program_bit,
174   GL_NV_vertex_program1_1_bit,
175   GL_NV_vertex_program2_bit,
176   GL_NV_vertex_program2_option_bit,
177   GL_NV_vertex_program3_bit,
178   GL_OES_compressed_paletted_texture_bit,
179   GL_OES_read_format_bit,
180   GL_SGI_color_matrix_bit,
181   GL_SGI_color_table_bit,
182   GL_SGI_texture_color_table_bit,
183   GL_SGIS_generate_mipmap_bit,
184   GL_SGIS_multisample_bit,
185   GL_SGIS_texture_lod_bit,
186   GL_SGIX_blend_alpha_minmax_bit,
187   GL_SGIX_clipmap_bit,
188   GL_SGIX_depth_texture_bit,
189   GL_SGIX_fog_offset_bit,
190   GL_SGIX_shadow_bit,
191   GL_SGIX_texture_coordinate_clamp_bit,
192   GL_SGIX_texture_lod_bias_bit,
193   GL_SGIX_texture_range_bit,
194   GL_SGIX_texture_scale_bias_bit,
195   GL_SGIX_vertex_preclip_bit,
196   GL_SGIX_vertex_preclip_hint_bit,
197   GL_SGIX_ycrcb_bit,
198   GL_SUN_convolution_border_modes_bit,
199   GL_SUN_slice_accum_bit,
200
201   /* This *MUST* go here.  If it gets put after the duplicate values it will
202    * get the value after the last duplicate.
203    */
204   __NUM_GL_EXTS,
205
206
207   /* Alias extension bits.  These extensions exist in either vendor-specific
208    * or EXT form and were later promoted to either EXT or ARB form.  In all
209    * cases, the meaning is *exactly* the same.  That's why
210    * EXT_texture_env_combine is *NOT* an alias of ARB_texture_env_combine and
211    * EXT_texture_env_dot3 is *NOT* an alias of ARB_texture_env_dot3.  Be
212    * careful!  When in doubt, src/mesa/main/extensions.c in the Mesa tree
213    * is a great reference.
214    */
215
216   GL_ATI_blend_equation_separate_bit = GL_EXT_blend_equation_separate_bit,
217   GL_ATI_draw_buffers_bit = GL_ARB_draw_buffers_bit,
218   GL_ATIX_texture_env_combine3_bit = GL_ATI_texture_env_combine3_bit,
219   GL_EXT_point_parameters_bit = GL_ARB_point_parameters_bit,
220   GL_EXT_texture_env_add_bit = GL_ARB_texture_env_add_bit,
221   GL_EXT_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
222   GL_IBM_texture_mirrored_repeat_bit = GL_ARB_texture_mirrored_repeat_bit,
223   GL_INGR_blend_func_separate_bit = GL_EXT_blend_func_separate_bit,
224   GL_MESA_window_pos_bit = GL_ARB_window_pos_bit,
225   GL_NV_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
226   GL_SGIS_texture_border_clamp_bit = GL_ARB_texture_border_clamp_bit,
227   GL_SGIS_texture_edge_clamp_bit = GL_EXT_texture_edge_clamp_bit,
228   GL_SGIX_shadow_ambient_bit = GL_ARB_shadow_ambient_bit,
229   GL_SUN_multi_draw_arrays_bit = GL_EXT_multi_draw_arrays_bit
230};
231
232#define __GL_EXT_BYTES   ((__NUM_GL_EXTS + 7) / 8)
233
234struct glx_screen;
235struct glx_context;
236
237extern GLboolean __glXExtensionBitIsEnabled(struct glx_screen *psc,
238                                            unsigned bit);
239extern const char *__glXGetClientExtensions(void);
240extern void __glXCalculateUsableExtensions(struct glx_screen *psc,
241                                           GLboolean
242                                           display_is_direct_capable,
243                                           int server_minor_version);
244
245extern void __glXCalculateUsableGLExtensions(struct glx_context *gc,
246                                             const char *server_string,
247                                             int major_version,
248                                             int minor_version);
249extern void __glXGetGLVersion(int *major_version, int *minor_version);
250extern char *__glXGetClientGLExtensionString(void);
251
252extern GLboolean __glExtensionBitIsEnabled(struct glx_context *gc,
253                                           unsigned bit);
254
255extern void
256__glXEnableDirectExtension(struct glx_screen *psc, const char *name);
257
258/* Source-level backwards compatibility with old drivers. They won't
259 * find the respective functions, though.
260 */
261typedef void (*PFNGLXENABLEEXTENSIONPROC) (const char *name,
262                                           GLboolean force_client);
263typedef void (*PFNGLXDISABLEEXTENSIONPROC) (const char *name);
264
265/* GLX_ALIAS should be used for functions with a non-void return type.
266   GLX_ALIAS_VOID is for functions with a void return type. */
267#ifdef GLX_NO_STATIC_EXTENSION_FUNCTIONS
268# define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func)
269# define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func)
270#else
271# if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
272#  define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
273   return_type  real_func  proto_args                                   \
274   __attribute__ ((alias( # aliased_func ) ));
275#  define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
276   GLX_ALIAS(void, real_func, proto_args, args, aliased_func)
277# else
278#  define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
279   return_type  real_func  proto_args                                   \
280   { return aliased_func args ; }
281#  define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
282   void  real_func  proto_args                                      \
283   { aliased_func args ; }
284# endif /* __GNUC__ */
285#endif /* GLX_NO_STATIC_EXTENSION_FUNCTIONS */
286
287#endif /* GLX_GLXEXTENSIONS_H */
288