src/glx/glxextensions.h

   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
  34 enum
  35 {
  36    ARB_get_proc_address_bit = 0,
  37    ARB_multisample_bit,
  38    ARB_render_texture_bit,
  39    ATI_pixel_format_float_bit,
  40    EXT_visual_info_bit,
  41    EXT_visual_rating_bit,
  42    EXT_import_context_bit,
  43    EXT_framebuffer_sRGB_bit,
  44    MESA_agp_offset_bit,
  45    MESA_copy_sub_buffer_bit,
  46    MESA_depth_float_bit,
  47    MESA_multithread_makecurrent_bit,
  48    MESA_pixmap_colormap_bit,
  49    MESA_release_buffers_bit,
  50    MESA_swap_control_bit,
  51    MESA_swap_frame_usage_bit,
  52    NV_float_buffer_bit,
  53    NV_render_depth_texture_bit,
  54    NV_render_texture_rectangle_bit,
  55    NV_vertex_array_range_bit,
  56    OML_swap_method_bit,
  57    OML_sync_control_bit,
  58    SGI_make_current_read_bit,
  59    SGI_swap_control_bit,
  60    SGI_video_sync_bit,
  61    SGIS_blended_overlay_bit,
  62    SGIS_color_range_bit,
  63    SGIS_multisample_bit,
  64    SGIX_fbconfig_bit,
  65    SGIX_pbuffer_bit,
  66    SGIX_swap_barrier_bit,
  67    SGIX_swap_group_bit,
  68    SGIX_visual_select_group_bit,
  69    EXT_texture_from_pixmap_bit,
  70    INTEL_swap_event_bit,
  71 };
  72
  73 enum
  74 {
  75    GL_ARB_depth_texture_bit = 0,
  76    GL_ARB_draw_buffers_bit,
  77    GL_ARB_fragment_program_bit,
  78    GL_ARB_fragment_program_shadow_bit,
  79    GL_ARB_framebuffer_object_bit,
  80    GL_ARB_imaging_bit,
  81    GL_ARB_multisample_bit,
  82    GL_ARB_multitexture_bit,
  83    GL_ARB_occlusion_query_bit,
  84    GL_ARB_point_parameters_bit,
  85    GL_ARB_point_sprite_bit,
  86    GL_ARB_shadow_bit,
  87    GL_ARB_shadow_ambient_bit,
  88    GL_ARB_texture_border_clamp_bit,
  89    GL_ARB_texture_cube_map_bit,
  90    GL_ARB_texture_compression_bit,
  91    GL_ARB_texture_env_add_bit,
  92    GL_ARB_texture_env_combine_bit,
  93    GL_ARB_texture_env_crossbar_bit,
  94    GL_ARB_texture_env_dot3_bit,
  95    GL_ARB_texture_mirrored_repeat_bit,
  96    GL_ARB_texture_non_power_of_two_bit,
  97    GL_ARB_texture_rectangle_bit,
  98    GL_ARB_texture_rg_bit,
  99    GL_ARB_transpose_matrix_bit,
 100    GL_ARB_vertex_buffer_object_bit,
 101    GL_ARB_vertex_program_bit,
 102    GL_ARB_window_pos_bit,
 103    GL_EXT_abgr_bit,
 104    GL_EXT_bgra_bit,
 105    GL_EXT_blend_color_bit,
 106    GL_EXT_blend_equation_separate_bit,
 107    GL_EXT_blend_func_separate_bit,
 108    GL_EXT_blend_logic_op_bit,
 109    GL_EXT_blend_minmax_bit,
 110    GL_EXT_blend_subtract_bit,
 111    GL_EXT_clip_volume_hint_bit,
 112    GL_EXT_compiled_vertex_array_bit,
 113    GL_EXT_convolution_bit,
 114    GL_EXT_copy_texture_bit,
 115    GL_EXT_cull_vertex_bit,
 116    GL_EXT_depth_bounds_test_bit,
 117    GL_EXT_draw_range_elements_bit,
 118    GL_EXT_fog_coord_bit,
 119    GL_EXT_framebuffer_blit_bit,
 120    GL_EXT_framebuffer_multisample_bit,
 121    GL_EXT_framebuffer_object_bit,
 122    GL_EXT_framebuffer_sRGB_bit,
 123    GL_EXT_multi_draw_arrays_bit,
 124    GL_EXT_packed_depth_stencil_bit,
 125    GL_EXT_packed_pixels_bit,
 126    GL_EXT_paletted_texture_bit,
 127    GL_EXT_pixel_buffer_object_bit,
 128    GL_EXT_polygon_offset_bit,
 129    GL_EXT_rescale_normal_bit,
 130    GL_EXT_secondary_color_bit,
 131    GL_EXT_separate_specular_color_bit,
 132    GL_EXT_shadow_funcs_bit,
 133    GL_EXT_shared_texture_palette_bit,
 134    GL_EXT_stencil_two_side_bit,
 135    GL_EXT_stencil_wrap_bit,
 136    GL_EXT_subtexture_bit,
 137    GL_EXT_texture_bit,
 138    GL_EXT_texture3D_bit,
 139    GL_EXT_texture_compression_dxt1_bit,
 140    GL_EXT_texture_compression_s3tc_bit,
 141    GL_EXT_texture_edge_clamp_bit,
 142    GL_EXT_texture_env_combine_bit,
 143    GL_EXT_texture_env_dot3_bit,
 144    GL_EXT_texture_filter_anisotropic_bit,
 145    GL_EXT_texture_lod_bit,
 146    GL_EXT_texture_lod_bias_bit,
 147    GL_EXT_texture_mirror_clamp_bit,
 148    GL_EXT_texture_object_bit,
 149    GL_EXT_vertex_array_bit,
 150    GL_3DFX_texture_compression_FXT1_bit,
 151    GL_APPLE_packed_pixels_bit,
 152    GL_APPLE_ycbcr_422_bit,
 153    GL_ATI_text_fragment_shader_bit,
 154    GL_ATI_texture_env_combine3_bit,
 155    GL_ATI_texture_float_bit,
 156    GL_ATI_texture_mirror_once_bit,
 157    GL_HP_convolution_border_modes_bit,
 158    GL_HP_occlusion_test_bit,
 159    GL_IBM_cull_vertex_bit,
 160    GL_IBM_pixel_filter_hint_bit,
 161    GL_IBM_rasterpos_clip_bit,
 162    GL_IBM_texture_clamp_nodraw_bit,
 163    GL_INGR_interlace_read_bit,
 164    GL_MESA_pack_invert_bit,
 165    GL_MESA_ycbcr_texture_bit,
 166    GL_NV_blend_square_bit,
 167    GL_NV_copy_depth_to_color_bit,
 168    GL_NV_depth_clamp_bit,
 169    GL_NV_fog_distance_bit,
 170    GL_NV_fragment_program_bit,
 171    GL_NV_fragment_program_option_bit,
 172    GL_NV_fragment_program2_bit,
 173    GL_NV_light_max_exponent_bit,
 174    GL_NV_multisample_filter_hint_bit,
 175    GL_NV_packed_depth_stencil_bit,
 176    GL_NV_point_sprite_bit,
 177    GL_NV_texgen_reflection_bit,
 178    GL_NV_texture_compression_vtc_bit,
 179    GL_NV_texture_env_combine4_bit,
 180    GL_NV_vertex_program_bit,
 181    GL_NV_vertex_program1_1_bit,
 182    GL_NV_vertex_program2_bit,
 183    GL_NV_vertex_program2_option_bit,
 184    GL_NV_vertex_program3_bit,
 185    GL_OES_compressed_paletted_texture_bit,
 186    GL_OES_read_format_bit,
 187    GL_SGI_color_matrix_bit,
 188    GL_SGI_color_table_bit,
 189    GL_SGI_texture_color_table_bit,
 190    GL_SGIS_generate_mipmap_bit,
 191    GL_SGIS_multisample_bit,
 192    GL_SGIS_texture_lod_bit,
 193    GL_SGIX_blend_alpha_minmax_bit,
 194    GL_SGIX_clipmap_bit,
 195    GL_SGIX_depth_texture_bit,
 196    GL_SGIX_fog_offset_bit,
 197    GL_SGIX_shadow_bit,
 198    GL_SGIX_texture_coordinate_clamp_bit,
 199    GL_SGIX_texture_lod_bias_bit,
 200    GL_SGIX_texture_range_bit,
 201    GL_SGIX_texture_scale_bias_bit,
 202    GL_SGIX_vertex_preclip_bit,
 203    GL_SGIX_vertex_preclip_hint_bit,
 204    GL_SGIX_ycrcb_bit,
 205    GL_SUN_convolution_border_modes_bit,
 206    GL_SUN_slice_accum_bit,
 207
 208    /* This *MUST* go here.  If it gets put after the duplicate values it will
 209     * get the value after the last duplicate.
 210     */
 211    __NUM_GL_EXTS,
 212
 213
 214    /* Alias extension bits.  These extensions exist in either vendor-specific
 215     * or EXT form and were later promoted to either EXT or ARB form.  In all
 216     * cases, the meaning is *exactly* the same.  That's why
 217     * EXT_texture_env_combine is *NOT* an alias of ARB_texture_env_combine and
 218     * EXT_texture_env_dot3 is *NOT* an alias of ARB_texture_env_dot3.  Be
 219     * careful!  When in doubt, src/mesa/main/extensions.c in the Mesa tree
 220     * is a great reference.
 221     */
 222
 223    GL_ATI_blend_equation_separate_bit = GL_EXT_blend_equation_separate_bit,
 224    GL_ATI_draw_buffers_bit = GL_ARB_draw_buffers_bit,
 225    GL_ATIX_texture_env_combine3_bit = GL_ATI_texture_env_combine3_bit,
 226    GL_EXT_point_parameters_bit = GL_ARB_point_parameters_bit,
 227    GL_EXT_texture_env_add_bit = GL_ARB_texture_env_add_bit,
 228    GL_EXT_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
 229    GL_IBM_texture_mirrored_repeat_bit = GL_ARB_texture_mirrored_repeat_bit,
 230    GL_INGR_blend_func_separate_bit = GL_EXT_blend_func_separate_bit,
 231    GL_MESA_window_pos_bit = GL_ARB_window_pos_bit,
 232    GL_NV_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
 233    GL_SGIS_texture_border_clamp_bit = GL_ARB_texture_border_clamp_bit,
 234    GL_SGIS_texture_edge_clamp_bit = GL_EXT_texture_edge_clamp_bit,
 235    GL_SGIX_shadow_ambient_bit = GL_ARB_shadow_ambient_bit,
 236    GL_SUN_multi_draw_arrays_bit = GL_EXT_multi_draw_arrays_bit
 237 };
 238
 239 #define __GL_EXT_BYTES   ((__NUM_GL_EXTS + 7) / 8)
 240
 241 struct glx_screen;
 242 struct glx_context;
 243
 244 extern GLboolean __glXExtensionBitIsEnabled(struct glx_screen *psc,
 245                                             unsigned bit);
 246 extern const char *__glXGetClientExtensions(void);
 247 extern void __glXCalculateUsableExtensions(struct glx_screen *psc,
 248                                            GLboolean
 249                                            display_is_direct_capable,
 250                                            int server_minor_version);
 251
 252 extern void __glXCalculateUsableGLExtensions(struct glx_context *gc,
 253                                              const char *server_string,
 254                                              int major_version,
 255                                              int minor_version);
 256 extern void __glXGetGLVersion(int *major_version, int *minor_version);
 257 extern char *__glXGetClientGLExtensionString(void);
 258
 259 extern GLboolean __glExtensionBitIsEnabled(struct glx_context *gc,
 260                                            unsigned bit);
 261
 262 extern void
 263 __glXEnableDirectExtension(struct glx_screen *psc, const char *name);
 264
 265 /* Source-level backwards compatibility with old drivers. They won't
 266  * find the respective functions, though.
 267  */
 268 typedef void (*PFNGLXENABLEEXTENSIONPROC) (const char *name,
 269                                            GLboolean force_client);
 270 typedef void (*PFNGLXDISABLEEXTENSIONPROC) (const char *name);
 271
 272 /* GLX_ALIAS should be used for functions with a non-void return type.
 273    GLX_ALIAS_VOID is for functions with a void return type. */
 274 #ifdef GLX_NO_STATIC_EXTENSION_FUNCTIONS
 275 # define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func)
 276 # define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func)
 277 #else
 278 # if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
 279 #  define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
 280    return_type  real_func  proto_args                                   \
 281    __attribute__ ((alias( # aliased_func ) ));
 282 #  define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
 283    GLX_ALIAS(void, real_func, proto_args, args, aliased_func)
 284 # else
 285 #  define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
 286    return_type  real_func  proto_args                                   \
 287    { return aliased_func args ; }
 288 #  define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
 289    void  real_func  proto_args                                      \
 290    { aliased_func args ; }
 291 # endif /* __GNUC__ */
 292 #endif /* GLX_NO_STATIC_EXTENSION_FUNCTIONS */
 293
 294 #endif /* GLX_GLXEXTENSIONS_H */