mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-05-09 04:38:03 +02:00
mesa: add _mesa_get_version, a ctx-independent variant of _mesa_compute_version
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Marek Olšák
parent
537cbb7e1a
commit
7207830047
2 changed files with 152 additions and 126 deletions
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@ -200,31 +200,32 @@ _mesa_override_glsl_version(struct gl_constants *consts)
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/**
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* Examine enabled GL extensions to determine GL version.
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*/
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static void
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compute_version(struct gl_context *ctx)
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static GLuint
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compute_version(const struct gl_extensions *extensions,
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const struct gl_constants *consts, gl_api api)
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{
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GLuint major, minor;
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const GLboolean ver_1_3 = (ctx->Extensions.ARB_texture_border_clamp &&
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ctx->Extensions.ARB_texture_cube_map &&
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ctx->Extensions.ARB_texture_env_combine &&
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ctx->Extensions.ARB_texture_env_dot3);
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const GLboolean ver_1_3 = (extensions->ARB_texture_border_clamp &&
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extensions->ARB_texture_cube_map &&
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extensions->ARB_texture_env_combine &&
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extensions->ARB_texture_env_dot3);
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const GLboolean ver_1_4 = (ver_1_3 &&
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ctx->Extensions.ARB_depth_texture &&
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ctx->Extensions.ARB_shadow &&
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ctx->Extensions.ARB_texture_env_crossbar &&
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ctx->Extensions.EXT_blend_color &&
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ctx->Extensions.EXT_blend_func_separate &&
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ctx->Extensions.EXT_blend_minmax &&
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ctx->Extensions.EXT_point_parameters);
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extensions->ARB_depth_texture &&
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extensions->ARB_shadow &&
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extensions->ARB_texture_env_crossbar &&
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extensions->EXT_blend_color &&
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extensions->EXT_blend_func_separate &&
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extensions->EXT_blend_minmax &&
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extensions->EXT_point_parameters);
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const GLboolean ver_1_5 = (ver_1_4 &&
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ctx->Extensions.ARB_occlusion_query);
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extensions->ARB_occlusion_query);
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const GLboolean ver_2_0 = (ver_1_5 &&
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ctx->Extensions.ARB_point_sprite &&
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ctx->Extensions.ARB_vertex_shader &&
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ctx->Extensions.ARB_fragment_shader &&
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ctx->Extensions.ARB_texture_non_power_of_two &&
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ctx->Extensions.EXT_blend_equation_separate &&
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extensions->ARB_point_sprite &&
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extensions->ARB_vertex_shader &&
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extensions->ARB_fragment_shader &&
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extensions->ARB_texture_non_power_of_two &&
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extensions->EXT_blend_equation_separate &&
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/* Technically, 2.0 requires the functionality
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* of the EXT version. Enable 2.0 if either
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@ -232,61 +233,61 @@ compute_version(struct gl_context *ctx)
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* driver that only exposes the ATI extension
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* will fallback to software when necessary.
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*/
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(ctx->Extensions.EXT_stencil_two_side
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|| ctx->Extensions.ATI_separate_stencil));
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(extensions->EXT_stencil_two_side
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|| extensions->ATI_separate_stencil));
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const GLboolean ver_2_1 = (ver_2_0 &&
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ctx->Extensions.EXT_pixel_buffer_object &&
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ctx->Extensions.EXT_texture_sRGB);
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extensions->EXT_pixel_buffer_object &&
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extensions->EXT_texture_sRGB);
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const GLboolean ver_3_0 = (ver_2_1 &&
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ctx->Const.GLSLVersion >= 130 &&
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(ctx->Const.MaxSamples >= 4 || ctx->Const.FakeSWMSAA) &&
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(ctx->API == API_OPENGL_CORE ||
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ctx->Extensions.ARB_color_buffer_float) &&
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ctx->Extensions.ARB_depth_buffer_float &&
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ctx->Extensions.ARB_half_float_vertex &&
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ctx->Extensions.ARB_map_buffer_range &&
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ctx->Extensions.ARB_shader_texture_lod &&
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ctx->Extensions.ARB_texture_float &&
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ctx->Extensions.ARB_texture_rg &&
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ctx->Extensions.ARB_texture_compression_rgtc &&
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ctx->Extensions.EXT_draw_buffers2 &&
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ctx->Extensions.ARB_framebuffer_object &&
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ctx->Extensions.EXT_framebuffer_sRGB &&
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ctx->Extensions.EXT_packed_float &&
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ctx->Extensions.EXT_texture_array &&
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ctx->Extensions.EXT_texture_shared_exponent &&
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ctx->Extensions.EXT_transform_feedback &&
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ctx->Extensions.NV_conditional_render);
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consts->GLSLVersion >= 130 &&
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(consts->MaxSamples >= 4 || consts->FakeSWMSAA) &&
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(api == API_OPENGL_CORE ||
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extensions->ARB_color_buffer_float) &&
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extensions->ARB_depth_buffer_float &&
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extensions->ARB_half_float_vertex &&
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extensions->ARB_map_buffer_range &&
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extensions->ARB_shader_texture_lod &&
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extensions->ARB_texture_float &&
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extensions->ARB_texture_rg &&
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extensions->ARB_texture_compression_rgtc &&
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extensions->EXT_draw_buffers2 &&
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extensions->ARB_framebuffer_object &&
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extensions->EXT_framebuffer_sRGB &&
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extensions->EXT_packed_float &&
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extensions->EXT_texture_array &&
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extensions->EXT_texture_shared_exponent &&
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extensions->EXT_transform_feedback &&
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extensions->NV_conditional_render);
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const GLboolean ver_3_1 = (ver_3_0 &&
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ctx->Const.GLSLVersion >= 140 &&
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ctx->Extensions.ARB_draw_instanced &&
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ctx->Extensions.ARB_texture_buffer_object &&
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ctx->Extensions.ARB_uniform_buffer_object &&
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ctx->Extensions.EXT_texture_snorm &&
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ctx->Extensions.NV_primitive_restart &&
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ctx->Extensions.NV_texture_rectangle &&
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ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16);
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consts->GLSLVersion >= 140 &&
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extensions->ARB_draw_instanced &&
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extensions->ARB_texture_buffer_object &&
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extensions->ARB_uniform_buffer_object &&
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extensions->EXT_texture_snorm &&
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extensions->NV_primitive_restart &&
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extensions->NV_texture_rectangle &&
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consts->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16);
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const GLboolean ver_3_2 = (ver_3_1 &&
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ctx->Const.GLSLVersion >= 150 &&
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ctx->Extensions.ARB_depth_clamp &&
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ctx->Extensions.ARB_draw_elements_base_vertex &&
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ctx->Extensions.ARB_fragment_coord_conventions &&
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ctx->Extensions.EXT_provoking_vertex &&
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ctx->Extensions.ARB_seamless_cube_map &&
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ctx->Extensions.ARB_sync &&
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ctx->Extensions.ARB_texture_multisample &&
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ctx->Extensions.EXT_vertex_array_bgra);
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consts->GLSLVersion >= 150 &&
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extensions->ARB_depth_clamp &&
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extensions->ARB_draw_elements_base_vertex &&
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extensions->ARB_fragment_coord_conventions &&
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extensions->EXT_provoking_vertex &&
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extensions->ARB_seamless_cube_map &&
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extensions->ARB_sync &&
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extensions->ARB_texture_multisample &&
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extensions->EXT_vertex_array_bgra);
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const GLboolean ver_3_3 = (ver_3_2 &&
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ctx->Const.GLSLVersion >= 330 &&
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ctx->Extensions.ARB_blend_func_extended &&
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ctx->Extensions.ARB_explicit_attrib_location &&
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ctx->Extensions.ARB_instanced_arrays &&
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ctx->Extensions.ARB_occlusion_query2 &&
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ctx->Extensions.ARB_shader_bit_encoding &&
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ctx->Extensions.ARB_texture_rgb10_a2ui &&
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ctx->Extensions.ARB_timer_query &&
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ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&
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ctx->Extensions.EXT_texture_swizzle);
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consts->GLSLVersion >= 330 &&
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extensions->ARB_blend_func_extended &&
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extensions->ARB_explicit_attrib_location &&
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extensions->ARB_instanced_arrays &&
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extensions->ARB_occlusion_query2 &&
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extensions->ARB_shader_bit_encoding &&
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extensions->ARB_texture_rgb10_a2ui &&
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extensions->ARB_timer_query &&
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extensions->ARB_vertex_type_2_10_10_10_rev &&
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extensions->EXT_texture_swizzle);
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/* ARB_sampler_objects is always enabled in mesa */
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if (ver_3_3) {
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@ -330,74 +331,90 @@ compute_version(struct gl_context *ctx)
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minor = 2;
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}
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ctx->Version = major * 10 + minor;
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create_version_string(ctx, "");
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return major * 10 + minor;
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}
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static void
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compute_version_es1(struct gl_context *ctx)
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static GLuint
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compute_version_es1(const struct gl_extensions *extensions)
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{
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/* OpenGL ES 1.0 is derived from OpenGL 1.3 */
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const GLboolean ver_1_0 = (ctx->Extensions.ARB_texture_env_combine &&
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ctx->Extensions.ARB_texture_env_dot3);
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const GLboolean ver_1_0 = (extensions->ARB_texture_env_combine &&
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extensions->ARB_texture_env_dot3);
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/* OpenGL ES 1.1 is derived from OpenGL 1.5 */
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const GLboolean ver_1_1 = (ver_1_0 &&
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ctx->Extensions.EXT_point_parameters);
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extensions->EXT_point_parameters);
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if (ver_1_1) {
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ctx->Version = 11;
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return 11;
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} else if (ver_1_0) {
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ctx->Version = 10;
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return 10;
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} else {
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_mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support.");
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return 0;
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}
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create_version_string(ctx, "OpenGL ES-CM ");
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}
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static void
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compute_version_es2(struct gl_context *ctx)
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static GLuint
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compute_version_es2(const struct gl_extensions *extensions)
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{
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/* OpenGL ES 2.0 is derived from OpenGL 2.0 */
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const GLboolean ver_2_0 = (ctx->Extensions.ARB_texture_cube_map &&
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ctx->Extensions.EXT_blend_color &&
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ctx->Extensions.EXT_blend_func_separate &&
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ctx->Extensions.EXT_blend_minmax &&
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ctx->Extensions.ARB_vertex_shader &&
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ctx->Extensions.ARB_fragment_shader &&
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ctx->Extensions.ARB_texture_non_power_of_two &&
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ctx->Extensions.EXT_blend_equation_separate);
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const GLboolean ver_2_0 = (extensions->ARB_texture_cube_map &&
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extensions->EXT_blend_color &&
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extensions->EXT_blend_func_separate &&
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extensions->EXT_blend_minmax &&
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extensions->ARB_vertex_shader &&
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extensions->ARB_fragment_shader &&
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extensions->ARB_texture_non_power_of_two &&
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extensions->EXT_blend_equation_separate);
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/* FINISHME: This list isn't quite right. */
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const GLboolean ver_3_0 = (ctx->Extensions.ARB_half_float_vertex &&
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ctx->Extensions.ARB_internalformat_query &&
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ctx->Extensions.ARB_map_buffer_range &&
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ctx->Extensions.ARB_shader_texture_lod &&
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ctx->Extensions.ARB_texture_float &&
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ctx->Extensions.ARB_texture_rg &&
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ctx->Extensions.ARB_texture_compression_rgtc &&
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ctx->Extensions.EXT_draw_buffers2 &&
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/* ctx->Extensions.ARB_framebuffer_object && */
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ctx->Extensions.EXT_framebuffer_sRGB &&
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ctx->Extensions.EXT_packed_float &&
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ctx->Extensions.EXT_texture_array &&
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ctx->Extensions.EXT_texture_shared_exponent &&
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ctx->Extensions.EXT_transform_feedback &&
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ctx->Extensions.NV_conditional_render &&
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ctx->Extensions.ARB_draw_instanced &&
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ctx->Extensions.ARB_uniform_buffer_object &&
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ctx->Extensions.EXT_texture_snorm &&
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ctx->Extensions.NV_primitive_restart &&
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ctx->Extensions.OES_depth_texture_cube_map);
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const GLboolean ver_3_0 = (extensions->ARB_half_float_vertex &&
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extensions->ARB_internalformat_query &&
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extensions->ARB_map_buffer_range &&
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extensions->ARB_shader_texture_lod &&
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extensions->ARB_texture_float &&
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extensions->ARB_texture_rg &&
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extensions->ARB_texture_compression_rgtc &&
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extensions->EXT_draw_buffers2 &&
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/* extensions->ARB_framebuffer_object && */
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extensions->EXT_framebuffer_sRGB &&
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extensions->EXT_packed_float &&
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extensions->EXT_texture_array &&
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extensions->EXT_texture_shared_exponent &&
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extensions->EXT_transform_feedback &&
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extensions->NV_conditional_render &&
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extensions->ARB_draw_instanced &&
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extensions->ARB_uniform_buffer_object &&
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extensions->EXT_texture_snorm &&
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extensions->NV_primitive_restart &&
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extensions->OES_depth_texture_cube_map);
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if (ver_3_0) {
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ctx->Version = 30;
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return 30;
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} else if (ver_2_0) {
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ctx->Version = 20;
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return 20;
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} else {
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_mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support.");
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return 0;
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}
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}
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create_version_string(ctx, "OpenGL ES ");
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GLuint
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_mesa_get_version(const struct gl_extensions *extensions,
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struct gl_constants *consts, gl_api api)
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{
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switch (api) {
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case API_OPENGL_COMPAT:
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/* Disable GLSL 1.40 and later for legacy contexts.
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* This disallows creation of the GL 3.1 compatibility context. */
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if (consts->GLSLVersion > 130) {
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consts->GLSLVersion = 130;
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}
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/* fall through */
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case API_OPENGL_CORE:
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return compute_version(extensions, consts, api);
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case API_OPENGLES:
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return compute_version_es1(extensions);
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case API_OPENGLES2:
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return compute_version_es2(extensions);
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}
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return 0;
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}
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/**
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@ -411,23 +428,28 @@ _mesa_compute_version(struct gl_context *ctx)
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if (ctx->Version)
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return;
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ctx->Version = _mesa_get_version(&ctx->Extensions, &ctx->Const, ctx->API);
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switch (ctx->API) {
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case API_OPENGL_COMPAT:
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/* Disable GLSL 1.40 and later for legacy contexts.
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* This disallows creation of the GL 3.1 compatibility context. */
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if (ctx->Const.GLSLVersion > 130) {
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ctx->Const.GLSLVersion = 130;
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}
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/* fall through */
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case API_OPENGL_CORE:
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compute_version(ctx);
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create_version_string(ctx, "");
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break;
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case API_OPENGLES:
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compute_version_es1(ctx);
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if (!ctx->Version) {
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_mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support.");
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return;
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}
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create_version_string(ctx, "OpenGL ES-CM ");
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break;
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case API_OPENGLES2:
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compute_version_es2(ctx);
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if (!ctx->Version) {
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_mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support.");
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return;
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}
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create_version_string(ctx, "OpenGL ES ");
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break;
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}
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}
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@ -30,6 +30,10 @@
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#include "mtypes.h"
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extern GLuint
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_mesa_get_version(const struct gl_extensions *extensions,
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struct gl_constants *consts, gl_api api);
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extern void
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_mesa_compute_version(struct gl_context *ctx);
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