| /************************************************************************** |
| * |
| * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * Copyright (c) 2008 VMware, Inc. |
| * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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. |
| * |
| **************************************************************************/ |
| |
| #include "main/imports.h" |
| #include "main/context.h" |
| #include "main/macros.h" |
| #include "main/mfeatures.h" |
| #include "main/version.h" |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/p_screen.h" |
| |
| #include "st_context.h" |
| #include "st_extensions.h" |
| |
| |
| static int _min(int a, int b) |
| { |
| return (a < b) ? a : b; |
| } |
| |
| static float _maxf(float a, float b) |
| { |
| return (a > b) ? a : b; |
| } |
| |
| static int _clamp(int a, int min, int max) |
| { |
| if (a < min) |
| return min; |
| else if (a > max) |
| return max; |
| else |
| return a; |
| } |
| |
| |
| /** |
| * Query driver to get implementation limits. |
| * Note that we have to limit/clamp against Mesa's internal limits too. |
| */ |
| void st_init_limits(struct st_context *st) |
| { |
| struct pipe_screen *screen = st->pipe->screen; |
| struct gl_constants *c = &st->ctx->Const; |
| gl_shader_type sh; |
| |
| c->MaxTextureLevels |
| = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS), |
| MAX_TEXTURE_LEVELS); |
| |
| c->Max3DTextureLevels |
| = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS), |
| MAX_3D_TEXTURE_LEVELS); |
| |
| c->MaxCubeTextureLevels |
| = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS), |
| MAX_CUBE_TEXTURE_LEVELS); |
| |
| c->MaxTextureRectSize |
| = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE); |
| |
| c->MaxArrayTextureLayers |
| = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS); |
| |
| c->MaxTextureImageUnits |
| = _min(screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, |
| PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS), |
| MAX_TEXTURE_IMAGE_UNITS); |
| |
| c->MaxVertexTextureImageUnits |
| = _min(screen->get_shader_param(screen, PIPE_SHADER_VERTEX, |
| PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS), |
| MAX_VERTEX_TEXTURE_IMAGE_UNITS); |
| |
| c->MaxCombinedTextureImageUnits |
| = _min(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SAMPLERS), |
| MAX_COMBINED_TEXTURE_IMAGE_UNITS); |
| |
| c->MaxTextureCoordUnits |
| = _min(c->MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS); |
| |
| c->MaxTextureUnits = _min(c->MaxTextureImageUnits, c->MaxTextureCoordUnits); |
| |
| /* Define max viewport size and max renderbuffer size in terms of |
| * max texture size (note: max tex RECT size = max tex 2D size). |
| * If this isn't true for some hardware we'll need new PIPE_CAP_ queries. |
| */ |
| c->MaxViewportWidth = |
| c->MaxViewportHeight = |
| c->MaxRenderbufferSize = c->MaxTextureRectSize; |
| |
| c->MaxDrawBuffers |
| = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), |
| 1, MAX_DRAW_BUFFERS); |
| |
| c->MaxDualSourceDrawBuffers |
| = _clamp(screen->get_param(screen, PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS), |
| 0, MAX_DRAW_BUFFERS); |
| |
| c->MaxLineWidth |
| = _maxf(1.0f, screen->get_paramf(screen, |
| PIPE_CAPF_MAX_LINE_WIDTH)); |
| c->MaxLineWidthAA |
| = _maxf(1.0f, screen->get_paramf(screen, |
| PIPE_CAPF_MAX_LINE_WIDTH_AA)); |
| |
| c->MaxPointSize |
| = _maxf(1.0f, screen->get_paramf(screen, |
| PIPE_CAPF_MAX_POINT_WIDTH)); |
| c->MaxPointSizeAA |
| = _maxf(1.0f, screen->get_paramf(screen, |
| PIPE_CAPF_MAX_POINT_WIDTH_AA)); |
| /* called after _mesa_create_context/_mesa_init_point, fix default user |
| * settable max point size up |
| */ |
| st->ctx->Point.MaxSize = MAX2(c->MaxPointSize, c->MaxPointSizeAA); |
| /* these are not queryable. Note that GL basically mandates a 1.0 minimum |
| * for non-aa sizes, but we can go down to 0.0 for aa points. |
| */ |
| c->MinPointSize = 1.0f; |
| c->MinPointSizeAA = 0.0f; |
| |
| c->MaxTextureMaxAnisotropy |
| = _maxf(2.0f, screen->get_paramf(screen, |
| PIPE_CAPF_MAX_TEXTURE_ANISOTROPY)); |
| |
| c->MaxTextureLodBias |
| = screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS); |
| |
| c->MaxDrawBuffers |
| = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS), |
| 1, MAX_DRAW_BUFFERS); |
| |
| c->QuadsFollowProvokingVertexConvention = screen->get_param( |
| screen, PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION); |
| |
| for (sh = 0; sh < MESA_SHADER_TYPES; ++sh) { |
| struct gl_shader_compiler_options *options = |
| &st->ctx->ShaderCompilerOptions[sh]; |
| struct gl_program_constants *pc; |
| |
| switch (sh) { |
| case PIPE_SHADER_FRAGMENT: |
| pc = &c->FragmentProgram; |
| break; |
| case PIPE_SHADER_VERTEX: |
| pc = &c->VertexProgram; |
| break; |
| case PIPE_SHADER_GEOMETRY: |
| pc = &c->GeometryProgram; |
| break; |
| default: |
| assert(0); |
| continue; |
| } |
| |
| pc->MaxNativeInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS); |
| pc->MaxNativeAluInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS); |
| pc->MaxNativeTexInstructions = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS); |
| pc->MaxNativeTexIndirections = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS); |
| pc->MaxNativeAttribs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS); |
| pc->MaxNativeTemps = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS); |
| pc->MaxNativeAddressRegs = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ADDRS); |
| pc->MaxNativeParameters = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONSTS); |
| pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS); |
| /* raise MaxParameters if native support is higher */ |
| pc->MaxParameters = MAX2(pc->MaxParameters, pc->MaxNativeParameters); |
| |
| /* Gallium doesn't really care about local vs. env parameters so use the |
| * same limits. |
| */ |
| pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS); |
| pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS); |
| |
| options->EmitNoNoise = TRUE; |
| |
| /* TODO: make these more fine-grained if anyone needs it */ |
| options->MaxIfDepth = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); |
| options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH); |
| options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); |
| options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES); |
| |
| options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED); |
| |
| options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh, |
| PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR); |
| options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh, |
| PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR); |
| options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh, |
| PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR); |
| options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh, |
| PIPE_SHADER_CAP_INDIRECT_CONST_ADDR); |
| |
| if (options->EmitNoLoops) |
| options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536); |
| else |
| options->MaxUnrollIterations = 255; /* SM3 limit */ |
| options->LowerClipDistance = true; |
| } |
| |
| /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number |
| * of inputs. It's always 2 colors + N generic inputs. */ |
| c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, |
| PIPE_SHADER_CAP_MAX_INPUTS); |
| c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING); |
| |
| c->MinProgramTexelOffset = screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET); |
| c->MaxProgramTexelOffset = screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET); |
| |
| c->UniformBooleanTrue = ~0; |
| |
| c->MaxTransformFeedbackBuffers = |
| screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS); |
| c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers, MAX_FEEDBACK_BUFFERS); |
| c->MaxTransformFeedbackSeparateComponents = |
| screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS); |
| c->MaxTransformFeedbackInterleavedComponents = |
| screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS); |
| |
| c->StripTextureBorder = GL_TRUE; |
| |
| c->GLSLSkipStrictMaxUniformLimitCheck = |
| screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS); |
| |
| c->GLSLSkipStrictMaxVaryingLimitCheck = |
| screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS); |
| } |
| |
| |
| static GLboolean st_get_s3tc_override(void) |
| { |
| const char *override = _mesa_getenv("force_s3tc_enable"); |
| if (override && !strcmp(override, "true")) |
| return GL_TRUE; |
| return GL_FALSE; |
| } |
| |
| /** |
| * Given a member \c x of struct gl_extensions, return offset of |
| * \c x in bytes. |
| */ |
| #define o(x) offsetof(struct gl_extensions, x) |
| |
| |
| struct st_extension_cap_mapping { |
| int extension_offset; |
| int cap; |
| }; |
| |
| struct st_extension_format_mapping { |
| int extension_offset[2]; |
| enum pipe_format format[8]; |
| |
| /* If TRUE, at least one format must be supported for the extensions to be |
| * advertised. If FALSE, all the formats must be supported. */ |
| GLboolean need_at_least_one; |
| }; |
| |
| /** |
| * Enable extensions if certain pipe formats are supported by the driver. |
| * What extensions will be enabled and what formats must be supported is |
| * described by the array of st_extension_format_mapping. |
| * |
| * target and bind_flags are passed to is_format_supported. |
| */ |
| static void init_format_extensions(struct st_context *st, |
| const struct st_extension_format_mapping *mapping, |
| unsigned num_mappings, |
| enum pipe_texture_target target, |
| unsigned bind_flags) |
| { |
| struct pipe_screen *screen = st->pipe->screen; |
| GLboolean *extensions = (GLboolean *) &st->ctx->Extensions; |
| int i, j; |
| int num_formats = Elements(mapping->format); |
| int num_ext = Elements(mapping->extension_offset); |
| |
| for (i = 0; i < num_mappings; i++) { |
| int num_supported = 0; |
| |
| /* Examine each format in the list. */ |
| for (j = 0; j < num_formats && mapping[i].format[j]; j++) { |
| if (screen->is_format_supported(screen, mapping[i].format[j], |
| target, 0, bind_flags)) { |
| num_supported++; |
| } |
| } |
| |
| if (!num_supported || |
| (!mapping[i].need_at_least_one && num_supported != j)) { |
| continue; |
| } |
| |
| /* Enable all extensions in the list. */ |
| for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++) |
| extensions[mapping[i].extension_offset[j]] = GL_TRUE; |
| } |
| } |
| |
| /** |
| * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine |
| * which GL extensions are supported. |
| * Quite a few extensions are always supported because they are standard |
| * features or can be built on top of other gallium features. |
| * Some fine tuning may still be needed. |
| */ |
| void st_init_extensions(struct st_context *st) |
| { |
| struct pipe_screen *screen = st->pipe->screen; |
| struct gl_context *ctx = st->ctx; |
| int i, glsl_feature_level; |
| GLboolean *extensions = (GLboolean *) &ctx->Extensions; |
| |
| static const struct st_extension_cap_mapping cap_mapping[] = { |
| { o(ARB_base_instance), PIPE_CAP_START_INSTANCE }, |
| { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE }, |
| { o(ARB_depth_texture), PIPE_CAP_TEXTURE_SHADOW_MAP }, |
| { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC }, |
| { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID }, |
| { o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP }, |
| { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR }, |
| { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY }, |
| { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY }, |
| { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE }, |
| { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP }, |
| { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT }, |
| { o(ARB_shader_texture_lod), PIPE_CAP_SM3 }, |
| { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP }, |
| { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES }, |
| { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME }, |
| { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME }, |
| |
| { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE }, |
| { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE }, |
| { o(EXT_shadow_funcs), PIPE_CAP_TEXTURE_SHADOW_MAP }, |
| { o(EXT_stencil_two_side), PIPE_CAP_TWO_SIDED_STENCIL }, |
| { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS }, |
| { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER }, |
| { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP }, |
| { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE }, |
| { o(EXT_timer_query), PIPE_CAP_TIMER_QUERY }, |
| { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS }, |
| |
| { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE }, |
| { o(ATI_separate_stencil), PIPE_CAP_TWO_SIDED_STENCIL }, |
| { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP }, |
| { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER }, |
| { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER }, |
| /* GL_NV_point_sprite is not supported by gallium because we don't |
| * support the GL_POINT_SPRITE_R_MODE_NV option. */ |
| { o(MESA_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS }, |
| }; |
| |
| /* Required: render target and sampler support */ |
| static const struct st_extension_format_mapping rendertarget_mapping[] = { |
| { { o(ARB_texture_float) }, |
| { PIPE_FORMAT_R32G32B32A32_FLOAT, |
| PIPE_FORMAT_R16G16B16A16_FLOAT } }, |
| |
| { { o(ARB_texture_rgb10_a2ui) }, |
| { PIPE_FORMAT_B10G10R10A2_UINT } }, |
| |
| { { o(EXT_framebuffer_sRGB) }, |
| { PIPE_FORMAT_A8B8G8R8_SRGB, |
| PIPE_FORMAT_B8G8R8A8_SRGB }, |
| GL_TRUE }, /* at least one format must be supported */ |
| |
| { { o(EXT_packed_float) }, |
| { PIPE_FORMAT_R11G11B10_FLOAT } }, |
| |
| { { o(EXT_texture_integer) }, |
| { PIPE_FORMAT_R32G32B32A32_UINT, |
| PIPE_FORMAT_R32G32B32A32_SINT } }, |
| }; |
| |
| /* Required: depth stencil and sampler support */ |
| static const struct st_extension_format_mapping depthstencil_mapping[] = { |
| { { o(ARB_depth_buffer_float) }, |
| { PIPE_FORMAT_Z32_FLOAT, |
| PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } }, |
| |
| { { o(ARB_framebuffer_object), |
| o(EXT_packed_depth_stencil) }, |
| { PIPE_FORMAT_S8_UINT_Z24_UNORM, |
| PIPE_FORMAT_Z24_UNORM_S8_UINT }, |
| GL_TRUE }, /* at least one format must be supported */ |
| }; |
| |
| /* Required: sampler support */ |
| static const struct st_extension_format_mapping texture_mapping[] = { |
| { { o(ARB_texture_compression_rgtc) }, |
| { PIPE_FORMAT_RGTC1_UNORM, |
| PIPE_FORMAT_RGTC1_SNORM, |
| PIPE_FORMAT_RGTC2_UNORM, |
| PIPE_FORMAT_RGTC2_SNORM } }, |
| |
| { { o(ARB_texture_rg) }, |
| { PIPE_FORMAT_R8G8_UNORM } }, |
| |
| { { o(EXT_texture_compression_latc) }, |
| { PIPE_FORMAT_LATC1_UNORM, |
| PIPE_FORMAT_LATC1_SNORM, |
| PIPE_FORMAT_LATC2_UNORM, |
| PIPE_FORMAT_LATC2_SNORM } }, |
| |
| { { o(EXT_texture_compression_s3tc), |
| o(S3_s3tc) }, |
| { PIPE_FORMAT_DXT1_RGB, |
| PIPE_FORMAT_DXT1_RGBA, |
| PIPE_FORMAT_DXT3_RGBA, |
| PIPE_FORMAT_DXT5_RGBA } }, |
| |
| { { o(EXT_texture_shared_exponent) }, |
| { PIPE_FORMAT_R9G9B9E5_FLOAT } }, |
| |
| { { o(EXT_texture_snorm) }, |
| { PIPE_FORMAT_R8G8B8A8_SNORM } }, |
| |
| { { o(EXT_texture_sRGB), |
| o(EXT_texture_sRGB_decode) }, |
| { PIPE_FORMAT_A8B8G8R8_SRGB, |
| PIPE_FORMAT_B8G8R8A8_SRGB }, |
| GL_TRUE }, /* at least one format must be supported */ |
| |
| { { o(ATI_texture_compression_3dc) }, |
| { PIPE_FORMAT_LATC2_UNORM } }, |
| |
| { { o(MESA_ycbcr_texture) }, |
| { PIPE_FORMAT_UYVY, |
| PIPE_FORMAT_YUYV }, |
| GL_TRUE }, /* at least one format must be supported */ |
| |
| { { o(OES_compressed_ETC1_RGB8_texture) }, |
| { PIPE_FORMAT_ETC1_RGB8 } }, |
| }; |
| |
| /* Required: vertex fetch support. */ |
| static const struct st_extension_format_mapping vertex_mapping[] = { |
| { { o(ARB_vertex_type_2_10_10_10_rev) }, |
| { PIPE_FORMAT_R10G10B10A2_UNORM, |
| PIPE_FORMAT_B10G10R10A2_UNORM, |
| PIPE_FORMAT_R10G10B10A2_SNORM, |
| PIPE_FORMAT_B10G10R10A2_SNORM, |
| PIPE_FORMAT_R10G10B10A2_USCALED, |
| PIPE_FORMAT_B10G10R10A2_USCALED, |
| PIPE_FORMAT_R10G10B10A2_SSCALED, |
| PIPE_FORMAT_B10G10R10A2_SSCALED } }, |
| }; |
| |
| /* |
| * Extensions that are supported by all Gallium drivers: |
| */ |
| ctx->Extensions.ARB_ES2_compatibility = GL_TRUE; |
| ctx->Extensions.ARB_copy_buffer = GL_TRUE; |
| ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE; |
| ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE; |
| ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; |
| ctx->Extensions.ARB_fragment_program = GL_TRUE; |
| ctx->Extensions.ARB_fragment_shader = GL_TRUE; |
| ctx->Extensions.ARB_half_float_pixel = GL_TRUE; |
| ctx->Extensions.ARB_half_float_vertex = GL_TRUE; |
| ctx->Extensions.ARB_map_buffer_range = GL_TRUE; |
| ctx->Extensions.ARB_shader_objects = GL_TRUE; |
| ctx->Extensions.ARB_shading_language_100 = GL_TRUE; |
| ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */ |
| ctx->Extensions.ARB_texture_cube_map = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_combine = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE; |
| ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE; |
| ctx->Extensions.ARB_texture_storage = GL_TRUE; |
| ctx->Extensions.ARB_vertex_program = GL_TRUE; |
| ctx->Extensions.ARB_vertex_shader = GL_TRUE; |
| ctx->Extensions.ARB_window_pos = GL_TRUE; |
| |
| ctx->Extensions.EXT_blend_color = GL_TRUE; |
| ctx->Extensions.EXT_blend_func_separate = GL_TRUE; |
| ctx->Extensions.EXT_blend_minmax = GL_TRUE; |
| ctx->Extensions.EXT_framebuffer_blit = GL_TRUE; |
| ctx->Extensions.EXT_framebuffer_object = GL_TRUE; |
| ctx->Extensions.EXT_fog_coord = GL_TRUE; |
| ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE; |
| ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE; |
| ctx->Extensions.EXT_point_parameters = GL_TRUE; |
| ctx->Extensions.EXT_provoking_vertex = GL_TRUE; |
| ctx->Extensions.EXT_secondary_color = GL_TRUE; |
| ctx->Extensions.EXT_separate_shader_objects = GL_TRUE; |
| ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE; |
| ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE; |
| |
| ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE; |
| |
| ctx->Extensions.MESA_pack_invert = GL_TRUE; |
| |
| ctx->Extensions.NV_blend_square = GL_TRUE; |
| ctx->Extensions.NV_fog_distance = GL_TRUE; |
| ctx->Extensions.NV_texgen_reflection = GL_TRUE; |
| ctx->Extensions.NV_texture_env_combine4 = GL_TRUE; |
| ctx->Extensions.NV_texture_rectangle = GL_TRUE; |
| #if 0 |
| /* possibly could support the following two */ |
| ctx->Extensions.NV_vertex_program = GL_TRUE; |
| ctx->Extensions.NV_vertex_program1_1 = GL_TRUE; |
| #endif |
| |
| #if FEATURE_OES_EGL_image |
| ctx->Extensions.OES_EGL_image = GL_TRUE; |
| if (ctx->API != API_OPENGL) |
| ctx->Extensions.OES_EGL_image_external = GL_TRUE; |
| #endif |
| #if FEATURE_OES_draw_texture |
| ctx->Extensions.OES_draw_texture = GL_TRUE; |
| #endif |
| |
| /* Expose the extensions which directly correspond to gallium caps. */ |
| for (i = 0; i < Elements(cap_mapping); i++) { |
| if (screen->get_param(screen, cap_mapping[i].cap)) { |
| extensions[cap_mapping[i].extension_offset] = GL_TRUE; |
| } |
| } |
| |
| /* Expose the extensions which directly correspond to gallium formats. */ |
| init_format_extensions(st, rendertarget_mapping, |
| Elements(rendertarget_mapping), PIPE_TEXTURE_2D, |
| PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW); |
| init_format_extensions(st, depthstencil_mapping, |
| Elements(depthstencil_mapping), PIPE_TEXTURE_2D, |
| PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW); |
| init_format_extensions(st, texture_mapping, Elements(texture_mapping), |
| PIPE_TEXTURE_2D, PIPE_BIND_SAMPLER_VIEW); |
| init_format_extensions(st, vertex_mapping, Elements(vertex_mapping), |
| PIPE_BUFFER, PIPE_BIND_VERTEX_BUFFER); |
| |
| /* Figure out GLSL support. */ |
| glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL); |
| |
| if (glsl_feature_level >= 130) { |
| ctx->Const.GLSLVersion = 130; |
| } else { |
| ctx->Const.GLSLVersion = 120; |
| } |
| |
| _mesa_override_glsl_version(st->ctx); |
| |
| if (ctx->Const.GLSLVersion >= 130) { |
| ctx->Const.NativeIntegers = GL_TRUE; |
| ctx->Const.MaxClipPlanes = 8; |
| |
| /* Extensions that only depend on GLSL 1.3. */ |
| ctx->Extensions.ARB_conservative_depth = GL_TRUE; |
| ctx->Extensions.ARB_shader_bit_encoding = GL_TRUE; |
| } else { |
| /* Optional integer support for GLSL 1.2. */ |
| if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX, |
| PIPE_SHADER_CAP_INTEGERS) && |
| screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, |
| PIPE_SHADER_CAP_INTEGERS)) { |
| ctx->Const.NativeIntegers = GL_TRUE; |
| } |
| } |
| |
| /* Below are the cases which cannot be moved into tables easily. */ |
| |
| if (!ctx->Mesa_DXTn && !st_get_s3tc_override()) { |
| ctx->Extensions.EXT_texture_compression_s3tc = GL_FALSE; |
| ctx->Extensions.S3_s3tc = GL_FALSE; |
| } |
| |
| if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY, |
| PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) { |
| #if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */ |
| ctx->Extensions.ARB_geometry_shader4 = GL_TRUE; |
| #endif |
| } |
| |
| ctx->Extensions.NV_primitive_restart = GL_TRUE; |
| if (!screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) { |
| ctx->Const.PrimitiveRestartInSoftware = GL_TRUE; |
| } |
| |
| if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) { |
| ctx->Extensions.ARB_color_buffer_float = GL_TRUE; |
| |
| if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) { |
| st->clamp_vert_color_in_shader = TRUE; |
| } |
| |
| if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) { |
| st->clamp_frag_color_in_shader = TRUE; |
| } |
| } |
| |
| if (screen->fence_finish) { |
| ctx->Extensions.ARB_sync = GL_TRUE; |
| } |
| |
| /* Maximum sample count. */ |
| for (i = 16; i > 0; --i) { |
| if (screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_UNORM, |
| PIPE_TEXTURE_2D, i, |
| PIPE_BIND_RENDER_TARGET)) { |
| ctx->Const.MaxSamples = i; |
| break; |
| } |
| } |
| if (ctx->Const.MaxSamples == 1) { |
| /* one sample doesn't really make sense */ |
| ctx->Const.MaxSamples = 0; |
| } |
| else if (ctx->Const.MaxSamples >= 2) { |
| ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE; |
| } |
| |
| if (ctx->Const.MaxDualSourceDrawBuffers > 0) |
| ctx->Extensions.ARB_blend_func_extended = GL_TRUE; |
| |
| if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY) && |
| screen->get_param(screen, PIPE_CAP_QUERY_TIMESTAMP)) { |
| ctx->Extensions.ARB_timer_query = GL_TRUE; |
| } |
| |
| if (ctx->Extensions.ARB_transform_feedback2 && |
| ctx->Extensions.ARB_draw_instanced) { |
| ctx->Extensions.ARB_transform_feedback_instanced = GL_TRUE; |
| } |
| if (st->options.force_glsl_extensions_warn) |
| ctx->Const.ForceGLSLExtensionsWarn = 1; |
| } |
