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mesa/src/glx/glxextensions.h
Ian Romanick a8724d85f8 glx/dri2: Add support for GLX_ARB_create_context_robustness 
Add the infrastructure required for this extension.  There is no
xserver support and no driver support yet.  Drivers can enable this be
advertising DRI2 version 4 and accepting the
__DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag and the
__DRI_CTX_ATTRIB_RESET_STRATEGY attribute in create context.

Some additional Mesa infrastructure is needed before drivers can do
this.  The GL_ARB_robustness spec, which all Mesa drivers already
advertise, requires:

    "If the behavior is LOSE_CONTEXT_ON_RESET_ARB, a graphics reset
    will result in the loss of all context state, requiring the
    recreation of all associated objects."

It is necessary to land this infrastructure now so that the related
infrastructure can land in the xserver.  The xserver has very long
release schedules, and the remaining Mesa parts should land long, long
before the next xserver merge window opens.

v2: Expose robustness as a DRI2 extension rather than bumping
__DRI_DRI2_VERSION.

v3: Add a comment explaining why dri2->base.version >= 3 is also
required for GLX_ARB_create_context_robustness.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
2012-07-11 08:54:50 -07:00

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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_create_context_bit = 0,
ARB_create_context_profile_bit,
ARB_create_context_robustness_bit,
ARB_get_proc_address_bit,
ARB_multisample_bit,
ATI_pixel_format_float_bit,
EXT_visual_info_bit,
EXT_visual_rating_bit,
EXT_import_context_bit,
EXT_framebuffer_sRGB_bit,
EXT_create_context_es2_profile_bit,
MESA_copy_sub_buffer_bit,
MESA_depth_float_bit,
MESA_multithread_makecurrent_bit,
MESA_swap_control_bit,
MESA_swap_frame_usage_bit,
NV_float_buffer_bit,
OML_swap_method_bit,
OML_sync_control_bit,
SGI_make_current_read_bit,
SGI_swap_control_bit,
SGI_video_sync_bit,
SGIS_multisample_bit,
SGIX_fbconfig_bit,
SGIX_pbuffer_bit,
SGIX_swap_barrier_bit,
SGIX_swap_group_bit,
SGIX_visual_select_group_bit,
EXT_texture_from_pixmap_bit,
INTEL_swap_event_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_framebuffer_object_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_texture_rg_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_blit_bit,
GL_EXT_framebuffer_multisample_bit,
GL_EXT_framebuffer_object_bit,
GL_EXT_framebuffer_sRGB_bit,
GL_EXT_multi_draw_arrays_bit,
GL_EXT_packed_depth_stencil_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_packed_depth_stencil_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_color_table_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 glx_screen;
struct glx_context;
extern GLboolean __glXExtensionBitIsEnabled(struct glx_screen *psc,
unsigned bit);
extern const char *__glXGetClientExtensions(void);
extern void __glXCalculateUsableExtensions(struct glx_screen *psc,
GLboolean
display_is_direct_capable,
int server_minor_version);
extern void __glXCalculateUsableGLExtensions(struct glx_context *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(struct glx_context *gc,
unsigned bit);
extern void
__glXEnableDirectExtension(struct glx_screen *psc, const char *name);
/* 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 */
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