diff options
Diffstat (limited to 'src/video_core')
| -rw-r--r-- | src/video_core/renderer_vulkan/vk_shader_decompiler.cpp | 105 |
1 files changed, 89 insertions, 16 deletions
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp index 802fe8747..3117a8d74 100644 --- a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp +++ b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp @@ -5,7 +5,9 @@ #include <functional> #include <limits> #include <map> +#include <optional> #include <type_traits> +#include <unordered_map> #include <utility> #include <fmt/format.h> @@ -94,6 +96,12 @@ struct VertexIndices { std::optional<u32> clip_distances; }; +struct GenericVaryingDescription { + Id id = nullptr; + u32 first_element = 0; + bool is_scalar = false; +}; + spv::Dim GetSamplerDim(const Sampler& sampler) { ASSERT(!sampler.IsBuffer()); switch (sampler.GetType()) { @@ -288,6 +296,15 @@ public: AddExtension("SPV_KHR_variable_pointers"); AddExtension("SPV_KHR_shader_draw_parameters"); + if (!transform_feedback.empty()) { + if (device.IsExtTransformFeedbackSupported()) { + AddCapability(spv::Capability::TransformFeedback); + } else { + LOG_ERROR(Render_Vulkan, "Shader requires transform feedbacks but these are not " + "supported on this device"); + } + } + if (ir.UsesLayer() || ir.UsesViewportIndex()) { if (ir.UsesViewportIndex()) { AddCapability(spv::Capability::MultiViewport); @@ -406,7 +423,7 @@ private: // Clear Position to avoid reading trash on the Z conversion. const auto position_index = out_indices.position.value(); const Id position = AccessElement(t_out_float4, out_vertex, position_index); - OpStore(position, v_varying_default); + OpStore(position, ConstantNull(t_float4)); if (specialization.point_size) { const u32 point_size_index = out_indices.point_size.value(); @@ -749,13 +766,35 @@ private: } void DeclareOutputAttributes() { + if (stage == ShaderType::Compute || stage == ShaderType::Fragment) { + return; + } + + UNIMPLEMENTED_IF(registry.GetGraphicsInfo().tfb_enabled && stage != ShaderType::Vertex); for (const auto index : ir.GetOutputAttributes()) { if (!IsGenericAttribute(index)) { continue; } - const u32 location = GetGenericAttributeLocation(index); - Id type = t_float4; - Id varying_default = v_varying_default; + DeclareOutputAttribute(index); + } + } + + void DeclareOutputAttribute(Attribute::Index index) { + static constexpr std::string_view swizzle = "xyzw"; + + const u32 location = GetGenericAttributeLocation(index); + u8 element = 0; + while (element < 4) { + const std::size_t remainder = 4 - element; + + std::size_t num_components = remainder; + const std::optional tfb = GetTransformFeedbackInfo(index, element); + if (tfb) { + num_components = tfb->components; + } + + Id type = GetTypeVectorDefinitionLut(Type::Float).at(num_components - 1); + Id varying_default = ConstantNull(type); if (IsOutputAttributeArray()) { const u32 num = GetNumOutputVertices(); type = TypeArray(type, Constant(t_uint, num)); @@ -767,15 +806,47 @@ private: } type = TypePointer(spv::StorageClass::Output, type); + std::string name = fmt::format("out_attr{}", location); + if (num_components < 4 || element > 0) { + name = fmt::format("{}_{}", name, swizzle.substr(element, num_components)); + } + const Id id = OpVariable(type, spv::StorageClass::Output, varying_default); - Name(AddGlobalVariable(id), fmt::format("out_attr{}", location)); - output_attributes.emplace(index, id); + Name(AddGlobalVariable(id), name); + + GenericVaryingDescription description; + description.id = id; + description.first_element = element; + description.is_scalar = num_components == 1; + for (u32 i = 0; i < num_components; ++i) { + const u8 offset = static_cast<u8>(static_cast<u32>(index) * 4 + element + i); + output_attributes.emplace(offset, description); + } interfaces.push_back(id); Decorate(id, spv::Decoration::Location, location); + if (element > 0) { + Decorate(id, spv::Decoration::Component, static_cast<u32>(element)); + } + if (tfb && device.IsExtTransformFeedbackSupported()) { + Decorate(id, spv::Decoration::XfbBuffer, static_cast<u32>(tfb->buffer)); + Decorate(id, spv::Decoration::XfbStride, static_cast<u32>(tfb->stride)); + Decorate(id, spv::Decoration::Offset, static_cast<u32>(tfb->offset)); + } + + element += static_cast<u8>(num_components); } } + std::optional<VaryingTFB> GetTransformFeedbackInfo(Attribute::Index index, u8 element = 0) { + const u8 location = static_cast<u8>(index) * 4 + element; + const auto it = transform_feedback.find(location); + if (it == transform_feedback.end()) { + return {}; + } + return it->second; + } + u32 DeclareConstantBuffers(u32 binding) { for (const auto& [index, size] : ir.GetConstantBuffers()) { const Id type = device.IsKhrUniformBufferStandardLayoutSupported() ? t_cbuf_scalar_ubo @@ -1353,8 +1424,14 @@ private: } default: if (IsGenericAttribute(attribute)) { - const Id composite = output_attributes.at(attribute); - return {ArrayPass(t_out_float, composite, {element}), Type::Float}; + const u8 offset = static_cast<u8>(static_cast<u8>(attribute) * 4 + element); + const GenericVaryingDescription description = output_attributes.at(offset); + const Id composite = description.id; + std::vector<u32> indices; + if (!description.is_scalar) { + indices.push_back(element - description.first_element); + } + return {ArrayPass(t_out_float, composite, indices), Type::Float}; } UNIMPLEMENTED_MSG("Unhandled output attribute: {}", static_cast<u32>(attribute)); @@ -2265,11 +2342,11 @@ private: std::array<Id, 4> GetTypeVectorDefinitionLut(Type type) const { switch (type) { case Type::Float: - return {nullptr, t_float2, t_float3, t_float4}; + return {t_float, t_float2, t_float3, t_float4}; case Type::Int: - return {nullptr, t_int2, t_int3, t_int4}; + return {t_int, t_int2, t_int3, t_int4}; case Type::Uint: - return {nullptr, t_uint2, t_uint3, t_uint4}; + return {t_uint, t_uint2, t_uint3, t_uint4}; default: UNIMPLEMENTED(); return {}; @@ -2573,10 +2650,6 @@ private: const Id v_float_zero = Constant(t_float, 0.0f); const Id v_float_one = Constant(t_float, 1.0f); - // Nvidia uses these defaults for varyings (e.g. position and generic attributes) - const Id v_varying_default = - ConstantComposite(t_float4, v_float_zero, v_float_zero, v_float_zero, v_float_one); - const Id v_true = ConstantTrue(t_bool); const Id v_false = ConstantFalse(t_bool); @@ -2593,7 +2666,7 @@ private: Id shared_memory{}; std::array<Id, INTERNAL_FLAGS_COUNT> internal_flags{}; std::map<Attribute::Index, Id> input_attributes; - std::map<Attribute::Index, Id> output_attributes; + std::unordered_map<u8, GenericVaryingDescription> output_attributes; std::map<u32, Id> constant_buffers; std::map<GlobalMemoryBase, Id> global_buffers; std::map<u32, TexelBuffer> texel_buffers; |