Home | History | Annotate | Download | only in glx
      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 (at) us.ibm.com>
     29  */
     30 
     31 #ifndef GLX_GLXEXTENSIONS_H
     32 #define GLX_GLXEXTENSIONS_H
     33 
     34 enum
     35 {
     36    ARB_create_context_bit = 0,
     37    ARB_create_context_profile_bit,
     38    ARB_create_context_robustness_bit,
     39    ARB_get_proc_address_bit,
     40    ARB_multisample_bit,
     41    ATI_pixel_format_float_bit,
     42    EXT_visual_info_bit,
     43    EXT_visual_rating_bit,
     44    EXT_import_context_bit,
     45    EXT_framebuffer_sRGB_bit,
     46    EXT_create_context_es2_profile_bit,
     47    MESA_copy_sub_buffer_bit,
     48    MESA_depth_float_bit,
     49    MESA_multithread_makecurrent_bit,
     50    MESA_swap_control_bit,
     51    MESA_swap_frame_usage_bit,
     52    NV_float_buffer_bit,
     53    OML_swap_method_bit,
     54    OML_sync_control_bit,
     55    SGI_make_current_read_bit,
     56    SGI_swap_control_bit,
     57    SGI_video_sync_bit,
     58    SGIS_multisample_bit,
     59    SGIX_fbconfig_bit,
     60    SGIX_pbuffer_bit,
     61    SGIX_swap_barrier_bit,
     62    SGIX_swap_group_bit,
     63    SGIX_visual_select_group_bit,
     64    EXT_texture_from_pixmap_bit,
     65    INTEL_swap_event_bit,
     66 };
     67 
     68 enum
     69 {
     70    GL_ARB_depth_texture_bit = 0,
     71    GL_ARB_draw_buffers_bit,
     72    GL_ARB_fragment_program_bit,
     73    GL_ARB_fragment_program_shadow_bit,
     74    GL_ARB_framebuffer_object_bit,
     75    GL_ARB_imaging_bit,
     76    GL_ARB_multisample_bit,
     77    GL_ARB_multitexture_bit,
     78    GL_ARB_occlusion_query_bit,
     79    GL_ARB_point_parameters_bit,
     80    GL_ARB_point_sprite_bit,
     81    GL_ARB_shadow_bit,
     82    GL_ARB_shadow_ambient_bit,
     83    GL_ARB_texture_border_clamp_bit,
     84    GL_ARB_texture_cube_map_bit,
     85    GL_ARB_texture_compression_bit,
     86    GL_ARB_texture_env_add_bit,
     87    GL_ARB_texture_env_combine_bit,
     88    GL_ARB_texture_env_crossbar_bit,
     89    GL_ARB_texture_env_dot3_bit,
     90    GL_ARB_texture_mirrored_repeat_bit,
     91    GL_ARB_texture_non_power_of_two_bit,
     92    GL_ARB_texture_rectangle_bit,
     93    GL_ARB_texture_rg_bit,
     94    GL_ARB_transpose_matrix_bit,
     95    GL_ARB_vertex_buffer_object_bit,
     96    GL_ARB_vertex_program_bit,
     97    GL_ARB_window_pos_bit,
     98    GL_EXT_abgr_bit,
     99    GL_EXT_bgra_bit,
    100    GL_EXT_blend_color_bit,
    101    GL_EXT_blend_equation_separate_bit,
    102    GL_EXT_blend_func_separate_bit,
    103    GL_EXT_blend_logic_op_bit,
    104    GL_EXT_blend_minmax_bit,
    105    GL_EXT_blend_subtract_bit,
    106    GL_EXT_clip_volume_hint_bit,
    107    GL_EXT_compiled_vertex_array_bit,
    108    GL_EXT_convolution_bit,
    109    GL_EXT_copy_texture_bit,
    110    GL_EXT_cull_vertex_bit,
    111    GL_EXT_depth_bounds_test_bit,
    112    GL_EXT_draw_range_elements_bit,
    113    GL_EXT_fog_coord_bit,
    114    GL_EXT_framebuffer_blit_bit,
    115    GL_EXT_framebuffer_multisample_bit,
    116    GL_EXT_framebuffer_object_bit,
    117    GL_EXT_framebuffer_sRGB_bit,
    118    GL_EXT_multi_draw_arrays_bit,
    119    GL_EXT_packed_depth_stencil_bit,
    120    GL_EXT_packed_pixels_bit,
    121    GL_EXT_paletted_texture_bit,
    122    GL_EXT_pixel_buffer_object_bit,
    123    GL_EXT_polygon_offset_bit,
    124    GL_EXT_rescale_normal_bit,
    125    GL_EXT_secondary_color_bit,
    126    GL_EXT_separate_specular_color_bit,
    127    GL_EXT_shadow_funcs_bit,
    128    GL_EXT_shared_texture_palette_bit,
    129    GL_EXT_stencil_two_side_bit,
    130    GL_EXT_stencil_wrap_bit,
    131    GL_EXT_subtexture_bit,
    132    GL_EXT_texture_bit,
    133    GL_EXT_texture3D_bit,
    134    GL_EXT_texture_compression_dxt1_bit,
    135    GL_EXT_texture_compression_s3tc_bit,
    136    GL_EXT_texture_edge_clamp_bit,
    137    GL_EXT_texture_env_combine_bit,
    138    GL_EXT_texture_env_dot3_bit,
    139    GL_EXT_texture_filter_anisotropic_bit,
    140    GL_EXT_texture_lod_bit,
    141    GL_EXT_texture_lod_bias_bit,
    142    GL_EXT_texture_mirror_clamp_bit,
    143    GL_EXT_texture_object_bit,
    144    GL_EXT_vertex_array_bit,
    145    GL_3DFX_texture_compression_FXT1_bit,
    146    GL_APPLE_packed_pixels_bit,
    147    GL_APPLE_ycbcr_422_bit,
    148    GL_ATI_text_fragment_shader_bit,
    149    GL_ATI_texture_env_combine3_bit,
    150    GL_ATI_texture_float_bit,
    151    GL_ATI_texture_mirror_once_bit,
    152    GL_HP_convolution_border_modes_bit,
    153    GL_HP_occlusion_test_bit,
    154    GL_IBM_cull_vertex_bit,
    155    GL_IBM_pixel_filter_hint_bit,
    156    GL_IBM_rasterpos_clip_bit,
    157    GL_IBM_texture_clamp_nodraw_bit,
    158    GL_INGR_interlace_read_bit,
    159    GL_MESA_pack_invert_bit,
    160    GL_MESA_ycbcr_texture_bit,
    161    GL_NV_blend_square_bit,
    162    GL_NV_copy_depth_to_color_bit,
    163    GL_NV_depth_clamp_bit,
    164    GL_NV_fog_distance_bit,
    165    GL_NV_fragment_program_bit,
    166    GL_NV_fragment_program_option_bit,
    167    GL_NV_fragment_program2_bit,
    168    GL_NV_light_max_exponent_bit,
    169    GL_NV_multisample_filter_hint_bit,
    170    GL_NV_packed_depth_stencil_bit,
    171    GL_NV_point_sprite_bit,
    172    GL_NV_texgen_reflection_bit,
    173    GL_NV_texture_compression_vtc_bit,
    174    GL_NV_texture_env_combine4_bit,
    175    GL_NV_vertex_program_bit,
    176    GL_NV_vertex_program1_1_bit,
    177    GL_NV_vertex_program2_bit,
    178    GL_NV_vertex_program2_option_bit,
    179    GL_NV_vertex_program3_bit,
    180    GL_OES_compressed_paletted_texture_bit,
    181    GL_OES_read_format_bit,
    182    GL_SGI_color_matrix_bit,
    183    GL_SGI_color_table_bit,
    184    GL_SGI_texture_color_table_bit,
    185    GL_SGIS_generate_mipmap_bit,
    186    GL_SGIS_multisample_bit,
    187    GL_SGIS_texture_lod_bit,
    188    GL_SGIX_blend_alpha_minmax_bit,
    189    GL_SGIX_clipmap_bit,
    190    GL_SGIX_depth_texture_bit,
    191    GL_SGIX_fog_offset_bit,
    192    GL_SGIX_shadow_bit,
    193    GL_SGIX_texture_coordinate_clamp_bit,
    194    GL_SGIX_texture_lod_bias_bit,
    195    GL_SGIX_texture_range_bit,
    196    GL_SGIX_texture_scale_bias_bit,
    197    GL_SGIX_vertex_preclip_bit,
    198    GL_SGIX_vertex_preclip_hint_bit,
    199    GL_SGIX_ycrcb_bit,
    200    GL_SUN_convolution_border_modes_bit,
    201    GL_SUN_slice_accum_bit,
    202 
    203    /* This *MUST* go here.  If it gets put after the duplicate values it will
    204     * get the value after the last duplicate.
    205     */
    206    __NUM_GL_EXTS,
    207 
    208 
    209    /* Alias extension bits.  These extensions exist in either vendor-specific
    210     * or EXT form and were later promoted to either EXT or ARB form.  In all
    211     * cases, the meaning is *exactly* the same.  That's why
    212     * EXT_texture_env_combine is *NOT* an alias of ARB_texture_env_combine and
    213     * EXT_texture_env_dot3 is *NOT* an alias of ARB_texture_env_dot3.  Be
    214     * careful!  When in doubt, src/mesa/main/extensions.c in the Mesa tree
    215     * is a great reference.
    216     */
    217 
    218    GL_ATI_blend_equation_separate_bit = GL_EXT_blend_equation_separate_bit,
    219    GL_ATI_draw_buffers_bit = GL_ARB_draw_buffers_bit,
    220    GL_ATIX_texture_env_combine3_bit = GL_ATI_texture_env_combine3_bit,
    221    GL_EXT_point_parameters_bit = GL_ARB_point_parameters_bit,
    222    GL_EXT_texture_env_add_bit = GL_ARB_texture_env_add_bit,
    223    GL_EXT_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
    224    GL_IBM_texture_mirrored_repeat_bit = GL_ARB_texture_mirrored_repeat_bit,
    225    GL_INGR_blend_func_separate_bit = GL_EXT_blend_func_separate_bit,
    226    GL_MESA_window_pos_bit = GL_ARB_window_pos_bit,
    227    GL_NV_texture_rectangle_bit = GL_ARB_texture_rectangle_bit,
    228    GL_SGIS_texture_border_clamp_bit = GL_ARB_texture_border_clamp_bit,
    229    GL_SGIS_texture_edge_clamp_bit = GL_EXT_texture_edge_clamp_bit,
    230    GL_SGIX_shadow_ambient_bit = GL_ARB_shadow_ambient_bit,
    231    GL_SUN_multi_draw_arrays_bit = GL_EXT_multi_draw_arrays_bit
    232 };
    233 
    234 #define __GL_EXT_BYTES   ((__NUM_GL_EXTS + 7) / 8)
    235 
    236 struct glx_screen;
    237 struct glx_context;
    238 
    239 extern GLboolean __glXExtensionBitIsEnabled(struct glx_screen *psc,
    240                                             unsigned bit);
    241 extern const char *__glXGetClientExtensions(void);
    242 extern void __glXCalculateUsableExtensions(struct glx_screen *psc,
    243                                            GLboolean
    244                                            display_is_direct_capable,
    245                                            int server_minor_version);
    246 
    247 extern void __glXCalculateUsableGLExtensions(struct glx_context *gc,
    248                                              const char *server_string,
    249                                              int major_version,
    250                                              int minor_version);
    251 extern void __glXGetGLVersion(int *major_version, int *minor_version);
    252 extern char *__glXGetClientGLExtensionString(void);
    253 
    254 extern GLboolean __glExtensionBitIsEnabled(struct glx_context *gc,
    255                                            unsigned bit);
    256 
    257 extern void
    258 __glXEnableDirectExtension(struct glx_screen *psc, const char *name);
    259 
    260 /* Source-level backwards compatibility with old drivers. They won't
    261  * find the respective functions, though.
    262  */
    263 typedef void (*PFNGLXENABLEEXTENSIONPROC) (const char *name,
    264                                            GLboolean force_client);
    265 typedef void (*PFNGLXDISABLEEXTENSIONPROC) (const char *name);
    266 
    267 /* GLX_ALIAS should be used for functions with a non-void return type.
    268    GLX_ALIAS_VOID is for functions with a void return type. */
    269 #ifdef GLX_NO_STATIC_EXTENSION_FUNCTIONS
    270 # define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func)
    271 # define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func)
    272 #else
    273 # if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
    274 #  define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
    275    return_type  real_func  proto_args                                   \
    276    __attribute__ ((alias( # aliased_func ) ));
    277 #  define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
    278    GLX_ALIAS(void, real_func, proto_args, args, aliased_func)
    279 # else
    280 #  define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
    281    return_type  real_func  proto_args                                   \
    282    { return aliased_func args ; }
    283 #  define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
    284    void  real_func  proto_args                                      \
    285    { aliased_func args ; }
    286 # endif /* __GNUC__ */
    287 #endif /* GLX_NO_STATIC_EXTENSION_FUNCTIONS */
    288 
    289 #endif /* GLX_GLXEXTENSIONS_H */
    290