From 7dafa96ab59892b7f1fbffdb61e4326e6443955f Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Thu, 24 Jun 2021 02:41:09 -0300 Subject: shader: Rework varyings and implement passthrough geometry shaders Put all varyings into a single std::bitset with helpers to access it. Implement passthrough geometry shaders using host's. --- .../backend/spirv/emit_context.cpp | 97 ++++++++++++---------- 1 file changed, 54 insertions(+), 43 deletions(-) (limited to 'src/shader_recompiler/backend/spirv/emit_context.cpp') diff --git a/src/shader_recompiler/backend/spirv/emit_context.cpp b/src/shader_recompiler/backend/spirv/emit_context.cpp index 4c6501129..af4fb0c69 100644 --- a/src/shader_recompiler/backend/spirv/emit_context.cpp +++ b/src/shader_recompiler/backend/spirv/emit_context.cpp @@ -557,7 +557,7 @@ void EmitContext::DefineCommonConstants() { } void EmitContext::DefineInterfaces(const IR::Program& program) { - DefineInputs(program.info); + DefineInputs(program); DefineOutputs(program); } @@ -693,16 +693,16 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) { const Id compare_index{OpShiftRightArithmetic(U32[1], base_index, Const(2U))}; std::vector literals; std::vector labels; - if (info.loads_position) { + if (info.loads.AnyComponent(IR::Attribute::PositionX)) { literals.push_back(static_cast(IR::Attribute::PositionX) >> 2); labels.push_back(OpLabel()); } const u32 base_attribute_value = static_cast(IR::Attribute::Generic0X) >> 2; - for (u32 i = 0; i < info.input_generics.size(); ++i) { - if (!info.input_generics[i].used) { + for (u32 index = 0; index < static_cast(IR::NUM_GENERICS); ++index) { + if (!info.loads.Generic(index)) { continue; } - literals.push_back(base_attribute_value + i); + literals.push_back(base_attribute_value + index); labels.push_back(OpLabel()); } OpSelectionMerge(end_block, spv::SelectionControlMask::MaskNone); @@ -710,7 +710,7 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) { AddLabel(default_label); OpReturnValue(Const(0.0f)); size_t label_index{0}; - if (info.loads_position) { + if (info.loads.AnyComponent(IR::Attribute::PositionX)) { AddLabel(labels[label_index]); const Id pointer{is_array ? OpAccessChain(input_f32, input_position, vertex, masked_index) @@ -719,18 +719,18 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) { OpReturnValue(result); ++label_index; } - for (size_t i = 0; i < info.input_generics.size(); i++) { - if (!info.input_generics[i].used) { + for (size_t index = 0; index < IR::NUM_GENERICS; ++index) { + if (!info.loads.Generic(index)) { continue; } AddLabel(labels[label_index]); - const auto type{AttrTypes(*this, static_cast(i))}; + const auto type{AttrTypes(*this, static_cast(index))}; if (!type) { OpReturnValue(Const(0.0f)); ++label_index; continue; } - const Id generic_id{input_generics.at(i)}; + const Id generic_id{input_generics.at(index)}; const Id pointer{is_array ? OpAccessChain(type->pointer, generic_id, vertex, masked_index) : OpAccessChain(type->pointer, generic_id, masked_index)}; @@ -758,19 +758,19 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) { const Id compare_index{OpShiftRightArithmetic(U32[1], base_index, Const(2U))}; std::vector literals; std::vector labels; - if (info.stores_position) { + if (info.stores.AnyComponent(IR::Attribute::PositionX)) { literals.push_back(static_cast(IR::Attribute::PositionX) >> 2); labels.push_back(OpLabel()); } const u32 base_attribute_value = static_cast(IR::Attribute::Generic0X) >> 2; - for (size_t i = 0; i < info.stores_generics.size(); i++) { - if (!info.stores_generics[i]) { + for (size_t index = 0; index < IR::NUM_GENERICS; ++index) { + if (!info.stores.Generic(index)) { continue; } - literals.push_back(base_attribute_value + static_cast(i)); + literals.push_back(base_attribute_value + static_cast(index)); labels.push_back(OpLabel()); } - if (info.stores_clip_distance) { + if (info.stores.ClipDistances()) { literals.push_back(static_cast(IR::Attribute::ClipDistance0) >> 2); labels.push_back(OpLabel()); literals.push_back(static_cast(IR::Attribute::ClipDistance4) >> 2); @@ -781,28 +781,28 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) { AddLabel(default_label); OpReturn(); size_t label_index{0}; - if (info.stores_position) { + if (info.stores.AnyComponent(IR::Attribute::PositionX)) { AddLabel(labels[label_index]); const Id pointer{OpAccessChain(output_f32, output_position, masked_index)}; OpStore(pointer, store_value); OpReturn(); ++label_index; } - for (size_t i = 0; i < info.stores_generics.size(); ++i) { - if (!info.stores_generics[i]) { + for (size_t index = 0; index < IR::NUM_GENERICS; ++index) { + if (!info.stores.Generic(index)) { continue; } - if (output_generics[i][0].num_components != 4) { + if (output_generics[index][0].num_components != 4) { throw NotImplementedException("Physical stores and transform feedbacks"); } AddLabel(labels[label_index]); - const Id generic_id{output_generics[i][0].id}; + const Id generic_id{output_generics[index][0].id}; const Id pointer{OpAccessChain(output_f32, generic_id, masked_index)}; OpStore(pointer, store_value); OpReturn(); ++label_index; } - if (info.stores_clip_distance) { + if (info.stores.ClipDistances()) { AddLabel(labels[label_index]); const Id pointer{OpAccessChain(output_f32, clip_distances, masked_index)}; OpStore(pointer, store_value); @@ -1146,7 +1146,10 @@ void EmitContext::DefineImages(const Info& info, u32& binding) { } } -void EmitContext::DefineInputs(const Info& info) { +void EmitContext::DefineInputs(const IR::Program& program) { + const Info& info{program.info}; + const VaryingState loads{info.loads.mask | info.passthrough.mask}; + if (info.uses_workgroup_id) { workgroup_id = DefineInput(*this, U32[3], false, spv::BuiltIn::WorkgroupId); } @@ -1183,15 +1186,20 @@ void EmitContext::DefineInputs(const Info& info) { fswzadd_lut_b = ConstantComposite(F32[4], f32_minus_one, f32_minus_one, f32_one, f32_minus_one); } - if (info.loads_primitive_id) { + if (loads[IR::Attribute::PrimitiveId]) { primitive_id = DefineInput(*this, U32[1], false, spv::BuiltIn::PrimitiveId); } - if (info.loads_position) { + if (loads.AnyComponent(IR::Attribute::PositionX)) { const bool is_fragment{stage != Stage::Fragment}; const spv::BuiltIn built_in{is_fragment ? spv::BuiltIn::Position : spv::BuiltIn::FragCoord}; input_position = DefineInput(*this, F32[4], true, built_in); + if (profile.support_geometry_shader_passthrough) { + if (info.passthrough.AnyComponent(IR::Attribute::PositionX)) { + Decorate(input_position, spv::Decoration::PassthroughNV); + } + } } - if (info.loads_instance_id) { + if (loads[IR::Attribute::InstanceId]) { if (profile.support_vertex_instance_id) { instance_id = DefineInput(*this, U32[1], true, spv::BuiltIn::InstanceId); } else { @@ -1199,7 +1207,7 @@ void EmitContext::DefineInputs(const Info& info) { base_instance = DefineInput(*this, U32[1], true, spv::BuiltIn::BaseInstance); } } - if (info.loads_vertex_id) { + if (loads[IR::Attribute::VertexId]) { if (profile.support_vertex_instance_id) { vertex_id = DefineInput(*this, U32[1], true, spv::BuiltIn::VertexId); } else { @@ -1207,24 +1215,24 @@ void EmitContext::DefineInputs(const Info& info) { base_vertex = DefineInput(*this, U32[1], true, spv::BuiltIn::BaseVertex); } } - if (info.loads_front_face) { + if (loads[IR::Attribute::FrontFace]) { front_face = DefineInput(*this, U1, true, spv::BuiltIn::FrontFacing); } - if (info.loads_point_coord) { + if (loads[IR::Attribute::PointSpriteS] || loads[IR::Attribute::PointSpriteT]) { point_coord = DefineInput(*this, F32[2], true, spv::BuiltIn::PointCoord); } - if (info.loads_tess_coord) { + if (loads[IR::Attribute::TessellationEvaluationPointU] || + loads[IR::Attribute::TessellationEvaluationPointV]) { tess_coord = DefineInput(*this, F32[3], false, spv::BuiltIn::TessCoord); } - for (size_t index = 0; index < info.input_generics.size(); ++index) { - if (!runtime_info.previous_stage_stores_generic[index]) { + for (size_t index = 0; index < IR::NUM_GENERICS; ++index) { + const AttributeType input_type{runtime_info.generic_input_types[index]}; + if (!runtime_info.previous_stage_stores.Generic(index)) { continue; } - const InputVarying generic{info.input_generics[index]}; - if (!generic.used) { + if (!loads.Generic(index)) { continue; } - const AttributeType input_type{runtime_info.generic_input_types[index]}; if (input_type == AttributeType::Disabled) { continue; } @@ -1234,10 +1242,13 @@ void EmitContext::DefineInputs(const Info& info) { Name(id, fmt::format("in_attr{}", index)); input_generics[index] = id; + if (info.passthrough.Generic(index) && profile.support_geometry_shader_passthrough) { + Decorate(id, spv::Decoration::PassthroughNV); + } if (stage != Stage::Fragment) { continue; } - switch (generic.interpolation) { + switch (info.interpolation[index]) { case Interpolation::Smooth: // Default // Decorate(id, spv::Decoration::Smooth); @@ -1266,42 +1277,42 @@ void EmitContext::DefineInputs(const Info& info) { void EmitContext::DefineOutputs(const IR::Program& program) { const Info& info{program.info}; const std::optional invocations{program.invocations}; - if (info.stores_position || stage == Stage::VertexB) { + if (info.stores.AnyComponent(IR::Attribute::PositionX) || stage == Stage::VertexB) { output_position = DefineOutput(*this, F32[4], invocations, spv::BuiltIn::Position); } - if (info.stores_point_size || runtime_info.fixed_state_point_size) { + if (info.stores[IR::Attribute::PointSize] || runtime_info.fixed_state_point_size) { if (stage == Stage::Fragment) { throw NotImplementedException("Storing PointSize in fragment stage"); } output_point_size = DefineOutput(*this, F32[1], invocations, spv::BuiltIn::PointSize); } - if (info.stores_clip_distance) { + if (info.stores.ClipDistances()) { if (stage == Stage::Fragment) { throw NotImplementedException("Storing ClipDistance in fragment stage"); } const Id type{TypeArray(F32[1], Const(8U))}; clip_distances = DefineOutput(*this, type, invocations, spv::BuiltIn::ClipDistance); } - if (info.stores_layer && + if (info.stores[IR::Attribute::Layer] && (profile.support_viewport_index_layer_non_geometry || stage == Stage::Geometry)) { if (stage == Stage::Fragment) { throw NotImplementedException("Storing Layer in fragment stage"); } layer = DefineOutput(*this, U32[1], invocations, spv::BuiltIn::Layer); } - if (info.stores_viewport_index && + if (info.stores[IR::Attribute::ViewportIndex] && (profile.support_viewport_index_layer_non_geometry || stage == Stage::Geometry)) { if (stage == Stage::Fragment) { throw NotImplementedException("Storing ViewportIndex in fragment stage"); } viewport_index = DefineOutput(*this, U32[1], invocations, spv::BuiltIn::ViewportIndex); } - if (info.stores_viewport_mask && profile.support_viewport_mask) { + if (info.stores[IR::Attribute::ViewportMask] && profile.support_viewport_mask) { viewport_mask = DefineOutput(*this, TypeArray(U32[1], Const(1u)), std::nullopt, spv::BuiltIn::ViewportMaskNV); } - for (size_t index = 0; index < info.stores_generics.size(); ++index) { - if (info.stores_generics[index]) { + for (size_t index = 0; index < IR::NUM_GENERICS; ++index) { + if (info.stores.Generic(index)) { DefineGenericOutput(*this, index, invocations); } } -- cgit v1.2.3