shader: Implement transform feedbacks and define file format
This commit is contained in:
parent
a83579b50a
commit
b126987c59
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@ -135,6 +135,45 @@ Id DefineOutput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin =
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return DefineVariable(ctx, type, builtin, spv::StorageClass::Output);
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}
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void DefineGenericOutput(EmitContext& ctx, size_t index) {
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static constexpr std::string_view swizzle{"xyzw"};
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const size_t base_attr_index{static_cast<size_t>(IR::Attribute::Generic0X) + index * 4};
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u32 element{0};
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while (element < 4) {
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const u32 remainder{4 - element};
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const TransformFeedbackVarying* xfb_varying{};
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if (!ctx.profile.xfb_varyings.empty()) {
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xfb_varying = &ctx.profile.xfb_varyings[base_attr_index + element];
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xfb_varying = xfb_varying && xfb_varying->components > 0 ? xfb_varying : nullptr;
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}
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const u32 num_components{xfb_varying ? xfb_varying->components : remainder};
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const Id id{DefineOutput(ctx, ctx.F32[num_components])};
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ctx.Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
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if (element > 0) {
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ctx.Decorate(id, spv::Decoration::Component, element);
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}
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if (xfb_varying) {
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ctx.Decorate(id, spv::Decoration::XfbBuffer, xfb_varying->buffer);
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ctx.Decorate(id, spv::Decoration::XfbStride, xfb_varying->stride);
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ctx.Decorate(id, spv::Decoration::Offset, xfb_varying->offset);
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}
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if (num_components < 4 || element > 0) {
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ctx.Name(id, fmt::format("out_attr{}", index));
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} else {
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const std::string_view subswizzle{swizzle.substr(element, num_components)};
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ctx.Name(id, fmt::format("out_attr{}_{}", index, subswizzle));
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}
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const GenericElementInfo info{
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.id = id,
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.first_element = element,
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.num_components = num_components,
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};
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std::fill_n(ctx.output_generics[index].begin(), num_components, info);
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element += num_components;
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}
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}
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Id GetAttributeType(EmitContext& ctx, AttributeType type) {
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switch (type) {
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case AttributeType::Float:
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@ -663,12 +702,15 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) {
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OpReturn();
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++label_index;
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}
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for (size_t i = 0; i < info.stores_generics.size(); i++) {
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for (size_t i = 0; i < info.stores_generics.size(); ++i) {
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if (!info.stores_generics[i]) {
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continue;
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}
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if (output_generics[i][0].num_components != 4) {
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throw NotImplementedException("Physical stores and transform feedbacks");
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}
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AddLabel(labels[label_index]);
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const Id generic_id{output_generics.at(i)};
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const Id generic_id{output_generics[i][0].id};
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const Id pointer{OpAccessChain(output_f32, generic_id, masked_index)};
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OpStore(pointer, store_value);
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OpReturn();
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@ -1015,11 +1057,9 @@ void EmitContext::DefineOutputs(const Info& info) {
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}
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viewport_index = DefineOutput(*this, U32[1], spv::BuiltIn::ViewportIndex);
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}
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for (size_t i = 0; i < info.stores_generics.size(); ++i) {
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if (info.stores_generics[i]) {
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output_generics[i] = DefineOutput(*this, F32[4]);
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Decorate(output_generics[i], spv::Decoration::Location, static_cast<u32>(i));
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Name(output_generics[i], fmt::format("out_attr{}", i));
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for (size_t index = 0; index < info.stores_generics.size(); ++index) {
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if (info.stores_generics[index]) {
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DefineGenericOutput(*this, index);
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}
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}
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if (stage == Stage::Fragment) {
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@ -79,6 +79,12 @@ struct StorageDefinitions {
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Id U32x4{};
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};
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struct GenericElementInfo {
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Id id{};
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u32 first_element{};
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u32 num_components{};
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};
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class EmitContext final : public Sirit::Module {
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public:
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explicit EmitContext(const Profile& profile, IR::Program& program, u32& binding);
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@ -189,7 +195,7 @@ public:
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Id output_point_size{};
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Id output_position{};
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std::array<Id, 32> output_generics{};
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std::array<std::array<GenericElementInfo, 4>, 32> output_generics{};
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std::array<Id, 8> frag_color{};
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Id frag_depth{};
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@ -288,6 +288,9 @@ void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ct
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if (info.uses_typeless_image_writes) {
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ctx.AddCapability(spv::Capability::StorageImageWriteWithoutFormat);
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}
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if (!ctx.profile.xfb_varyings.empty()) {
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ctx.AddCapability(spv::Capability::TransformFeedback);
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}
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// TODO: Track this usage
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ctx.AddCapability(spv::Capability::ImageGatherExtended);
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ctx.AddCapability(spv::Capability::ImageQuery);
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@ -40,11 +40,17 @@ Id AttrPointer(EmitContext& ctx, Id pointer_type, Id vertex, Id base, Args&&...
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}
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std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
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const u32 element{static_cast<u32>(attr) % 4};
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const auto element_id{[&] { return ctx.Constant(ctx.U32[1], element); }};
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if (IR::IsGeneric(attr)) {
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const u32 index{IR::GenericAttributeIndex(attr)};
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return ctx.OpAccessChain(ctx.output_f32, ctx.output_generics.at(index), element_id());
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const u32 element{IR::GenericAttributeElement(attr)};
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const GenericElementInfo& info{ctx.output_generics.at(index).at(element)};
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if (info.num_components == 1) {
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return info.id;
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} else {
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const u32 index_element{element - info.first_element};
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const Id index_id{ctx.Constant(ctx.U32[1], index_element)};
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return ctx.OpAccessChain(ctx.output_f32, info.id, index_id);
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}
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}
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switch (attr) {
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case IR::Attribute::PointSize:
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@ -52,8 +58,11 @@ std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
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case IR::Attribute::PositionX:
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case IR::Attribute::PositionY:
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case IR::Attribute::PositionZ:
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case IR::Attribute::PositionW:
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return ctx.OpAccessChain(ctx.output_f32, ctx.output_position, element_id());
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case IR::Attribute::PositionW: {
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const u32 element{static_cast<u32>(attr) % 4};
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const Id element_id{ctx.Constant(ctx.U32[1], element)};
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return ctx.OpAccessChain(ctx.output_f32, ctx.output_position, element_id);
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}
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case IR::Attribute::ClipDistance0:
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case IR::Attribute::ClipDistance1:
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case IR::Attribute::ClipDistance2:
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@ -22,6 +22,21 @@ void SetFixedPipelinePointSize(EmitContext& ctx) {
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ctx.OpStore(ctx.output_point_size, ctx.Constant(ctx.F32[1], point_size));
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}
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}
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Id DefaultVarying(EmitContext& ctx, u32 num_components, u32 element, Id zero, Id one,
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Id default_vector) {
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switch (num_components) {
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case 1:
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return element == 3 ? one : zero;
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case 2:
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return ctx.ConstantComposite(ctx.F32[2], zero, element + 1 == 3 ? one : zero);
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case 3:
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return ctx.ConstantComposite(ctx.F32[3], zero, zero, element + 2 == 3 ? one : zero);
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case 4:
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return default_vector;
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}
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throw InvalidArgument("Bad element");
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}
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} // Anonymous namespace
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void EmitPrologue(EmitContext& ctx) {
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@ -30,9 +45,17 @@ void EmitPrologue(EmitContext& ctx) {
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const Id one{ctx.Constant(ctx.F32[1], 1.0f)};
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const Id default_vector{ctx.ConstantComposite(ctx.F32[4], zero, zero, zero, one)};
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ctx.OpStore(ctx.output_position, default_vector);
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for (const Id generic_id : ctx.output_generics) {
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if (Sirit::ValidId(generic_id)) {
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ctx.OpStore(generic_id, default_vector);
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for (const auto& info : ctx.output_generics) {
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if (info[0].num_components == 0) {
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continue;
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}
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u32 element{0};
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while (element < 4) {
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const auto& element_info{info[element]};
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const u32 num{element_info.num_components};
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const Id value{DefaultVarying(ctx, num, element, zero, one, default_vector)};
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ctx.OpStore(element_info.id, value);
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element += num;
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}
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}
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}
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@ -20,6 +20,13 @@ u32 GenericAttributeIndex(Attribute attribute) {
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return (static_cast<u32>(attribute) - static_cast<u32>(Attribute::Generic0X)) / 4u;
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}
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u32 GenericAttributeElement(Attribute attribute) {
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if (!IsGeneric(attribute)) {
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throw InvalidArgument("Attribute is not generic {}", attribute);
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}
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return static_cast<u32>(attribute) % 4;
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}
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std::string NameOf(Attribute attribute) {
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switch (attribute) {
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case Attribute::PrimitiveId:
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@ -226,6 +226,8 @@ enum class Attribute : u64 {
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[[nodiscard]] u32 GenericAttributeIndex(Attribute attribute);
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[[nodiscard]] u32 GenericAttributeElement(Attribute attribute);
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[[nodiscard]] std::string NameOf(Attribute attribute);
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} // namespace Shader::IR
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@ -5,6 +5,7 @@
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#pragma once
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#include <array>
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#include <vector>
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#include <optional>
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#include "common/common_types.h"
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@ -26,6 +27,13 @@ enum class InputTopology {
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TrianglesAdjacency,
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};
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struct TransformFeedbackVarying {
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u32 buffer{};
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u32 stride{};
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u32 offset{};
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u32 components{};
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};
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struct Profile {
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u32 supported_spirv{0x00010000};
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@ -58,6 +66,8 @@ struct Profile {
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InputTopology input_topology{};
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std::optional<float> fixed_state_point_size;
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std::vector<TransformFeedbackVarying> xfb_varyings;
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};
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} // namespace Shader
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@ -52,6 +52,8 @@ void FixedPipelineState::Refresh(Tegra::Engines::Maxwell3D& maxwell3d,
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const u32 topology_index = static_cast<u32>(regs.draw.topology.Value());
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raw1 = 0;
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no_extended_dynamic_state.Assign(has_extended_dynamic_state ? 0 : 1);
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xfb_enabled.Assign(regs.tfb_enabled != 0);
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primitive_restart_enable.Assign(regs.primitive_restart.enabled != 0 ? 1 : 0);
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depth_bias_enable.Assign(enabled_lut[POLYGON_OFFSET_ENABLE_LUT[topology_index]] != 0 ? 1 : 0);
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depth_clamp_disabled.Assign(regs.view_volume_clip_control.depth_clamp_disabled.Value());
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@ -113,10 +115,12 @@ void FixedPipelineState::Refresh(Tegra::Engines::Maxwell3D& maxwell3d,
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return static_cast<u16>(viewport.swizzle.raw);
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});
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}
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if (!has_extended_dynamic_state) {
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no_extended_dynamic_state.Assign(1);
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if (no_extended_dynamic_state != 0) {
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dynamic_state.Refresh(regs);
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}
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if (xfb_enabled != 0) {
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xfb_state.Refresh(regs);
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}
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}
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void FixedPipelineState::BlendingAttachment::Refresh(const Maxwell& regs, size_t index) {
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@ -158,6 +162,17 @@ void FixedPipelineState::BlendingAttachment::Refresh(const Maxwell& regs, size_t
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enable.Assign(1);
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}
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void FixedPipelineState::TransformFeedbackState::Refresh(const Maxwell& regs) {
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std::ranges::transform(regs.tfb_layouts, layouts.begin(), [](const auto& layout) {
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return Layout{
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.stream = layout.stream,
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.varying_count = layout.varying_count,
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.stride = layout.stride,
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};
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});
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varyings = regs.tfb_varying_locs;
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}
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void FixedPipelineState::DynamicState::Refresh(const Maxwell& regs) {
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u32 packed_front_face = PackFrontFace(regs.front_face);
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if (regs.screen_y_control.triangle_rast_flip != 0) {
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@ -130,6 +130,18 @@ struct FixedPipelineState {
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}
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};
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struct TransformFeedbackState {
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struct Layout {
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u32 stream;
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u32 varying_count;
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u32 stride;
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};
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std::array<Layout, Maxwell::NumTransformFeedbackBuffers> layouts;
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std::array<std::array<u8, 128>, Maxwell::NumTransformFeedbackBuffers> varyings;
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void Refresh(const Maxwell& regs);
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};
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struct DynamicState {
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union {
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u32 raw1;
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@ -168,6 +180,7 @@ struct FixedPipelineState {
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union {
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u32 raw1;
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BitField<0, 1, u32> no_extended_dynamic_state;
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BitField<1, 1, u32> xfb_enabled;
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BitField<2, 1, u32> primitive_restart_enable;
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BitField<3, 1, u32> depth_bias_enable;
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BitField<4, 1, u32> depth_clamp_disabled;
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@ -199,6 +212,7 @@ struct FixedPipelineState {
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std::array<BlendingAttachment, Maxwell::NumRenderTargets> attachments;
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std::array<u16, Maxwell::NumViewports> viewport_swizzles;
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DynamicState dynamic_state;
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TransformFeedbackState xfb_state;
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void Refresh(Tegra::Engines::Maxwell3D& maxwell3d, bool has_extended_dynamic_state);
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@ -211,8 +225,16 @@ struct FixedPipelineState {
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}
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size_t Size() const noexcept {
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const size_t total_size = sizeof *this;
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return total_size - (no_extended_dynamic_state != 0 ? 0 : sizeof(DynamicState));
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if (xfb_enabled != 0) {
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// When transform feedback is enabled, use the whole struct
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return sizeof(*this);
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} else if (no_extended_dynamic_state != 0) {
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// Dynamic state is enabled, we can enable more
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return offsetof(FixedPipelineState, xfb_state);
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} else {
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// No XFB, extended dynamic state enabled
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return offsetof(FixedPipelineState, dynamic_state);
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}
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}
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};
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static_assert(std::has_unique_object_representations_v<FixedPipelineState>);
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@ -248,6 +248,10 @@ namespace {
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using Shader::Backend::SPIRV::EmitSPIRV;
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using Shader::Maxwell::TranslateProgram;
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// TODO: Move this to a separate file
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constexpr std::array<char, 8> MAGIC_NUMBER{'y', 'u', 'z', 'u', 'c', 'a', 'c', 'h'};
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constexpr u32 CACHE_VERSION{1};
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class GraphicsEnvironment final : public GenericEnvironment {
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public:
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explicit GraphicsEnvironment() = default;
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@ -379,13 +383,14 @@ void SerializePipeline(const Key& key, const Envs& envs, const std::string& file
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try {
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std::ofstream file;
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file.exceptions(std::ifstream::failbit);
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Common::FS::OpenFStream(file, filename, std::ios::binary | std::ios::app);
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Common::FS::OpenFStream(file, filename, std::ios::binary | std::ios::ate | std::ios::app);
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if (!file.is_open()) {
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LOG_ERROR(Common_Filesystem, "Failed to open pipeline cache file {}", filename);
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return;
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}
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if (file.tellp() == 0) {
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// Write header...
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file.write(MAGIC_NUMBER.data(), MAGIC_NUMBER.size())
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.write(reinterpret_cast<const char*>(&CACHE_VERSION), sizeof(CACHE_VERSION));
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}
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const std::span key_span(reinterpret_cast<const char*>(&key), sizeof(key));
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SerializePipeline(key_span, MakeSpan(envs), file);
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@ -520,8 +525,27 @@ void PipelineCache::LoadDiskResources(u64 title_id, std::stop_token stop_loading
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file.exceptions(std::ifstream::failbit);
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const auto end{file.tellg()};
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file.seekg(0, std::ios::beg);
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// Read header...
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std::array<char, 8> magic_number;
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u32 cache_version;
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file.read(magic_number.data(), magic_number.size())
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.read(reinterpret_cast<char*>(&cache_version), sizeof(cache_version));
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if (magic_number != MAGIC_NUMBER || cache_version != CACHE_VERSION) {
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file.close();
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if (Common::FS::Delete(pipeline_cache_filename)) {
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if (magic_number != MAGIC_NUMBER) {
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LOG_ERROR(Render_Vulkan, "Invalid pipeline cache file");
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}
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if (cache_version != CACHE_VERSION) {
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LOG_INFO(Render_Vulkan, "Deleting old pipeline cache");
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}
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} else {
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LOG_ERROR(Render_Vulkan,
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"Invalid pipeline cache file and failed to delete it in \"{}\"",
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pipeline_cache_filename);
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}
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return;
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}
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while (file.tellg() != end) {
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if (stop_loading) {
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return;
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@ -879,6 +903,88 @@ static Shader::AttributeType CastAttributeType(const FixedPipelineState::VertexA
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return Shader::AttributeType::Float;
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}
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static std::vector<Shader::TransformFeedbackVarying> MakeTransformFeedbackVaryings(
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const GraphicsPipelineCacheKey& key) {
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static constexpr std::array VECTORS{
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28, // gl_Position
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32, // Generic 0
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36, // Generic 1
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40, // Generic 2
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44, // Generic 3
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48, // Generic 4
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52, // Generic 5
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56, // Generic 6
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60, // Generic 7
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64, // Generic 8
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68, // Generic 9
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72, // Generic 10
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76, // Generic 11
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80, // Generic 12
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84, // Generic 13
|
||||
88, // Generic 14
|
||||
92, // Generic 15
|
||||
96, // Generic 16
|
||||
100, // Generic 17
|
||||
104, // Generic 18
|
||||
108, // Generic 19
|
||||
112, // Generic 20
|
||||
116, // Generic 21
|
||||
120, // Generic 22
|
||||
124, // Generic 23
|
||||
128, // Generic 24
|
||||
132, // Generic 25
|
||||
136, // Generic 26
|
||||
140, // Generic 27
|
||||
144, // Generic 28
|
||||
148, // Generic 29
|
||||
152, // Generic 30
|
||||
156, // Generic 31
|
||||
160, // gl_FrontColor
|
||||
164, // gl_FrontSecondaryColor
|
||||
160, // gl_BackColor
|
||||
164, // gl_BackSecondaryColor
|
||||
192, // gl_TexCoord[0]
|
||||
196, // gl_TexCoord[1]
|
||||
200, // gl_TexCoord[2]
|
||||
204, // gl_TexCoord[3]
|
||||
208, // gl_TexCoord[4]
|
||||
212, // gl_TexCoord[5]
|
||||
216, // gl_TexCoord[6]
|
||||
220, // gl_TexCoord[7]
|
||||
};
|
||||
std::vector<Shader::TransformFeedbackVarying> xfb(256);
|
||||
for (size_t buffer = 0; buffer < Maxwell::NumTransformFeedbackBuffers; ++buffer) {
|
||||
const auto& locations = key.state.xfb_state.varyings[buffer];
|
||||
const auto& layout = key.state.xfb_state.layouts[buffer];
|
||||
const u32 varying_count = layout.varying_count;
|
||||
u32 highest = 0;
|
||||
for (u32 offset = 0; offset < varying_count; ++offset) {
|
||||
const u32 base_offset = offset;
|
||||
const u8 location = locations[offset];
|
||||
|
||||
Shader::TransformFeedbackVarying varying;
|
||||
varying.buffer = layout.stream;
|
||||
varying.stride = layout.stride;
|
||||
varying.offset = offset * 4;
|
||||
varying.components = 1;
|
||||
|
||||
if (std::ranges::find(VECTORS, Common::AlignDown(location, 4)) != VECTORS.end()) {
|
||||
UNIMPLEMENTED_IF_MSG(location % 4 != 0, "Unaligned TFB");
|
||||
|
||||
const u8 base_index = location / 4;
|
||||
while (offset + 1 < varying_count && base_index == locations[offset + 1] / 4) {
|
||||
++offset;
|
||||
++varying.components;
|
||||
}
|
||||
}
|
||||
xfb[location] = varying;
|
||||
highest = std::max(highest, (base_offset + varying.components) * 4);
|
||||
}
|
||||
UNIMPLEMENTED_IF(highest != layout.stride);
|
||||
}
|
||||
return xfb;
|
||||
}
|
||||
|
||||
Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
|
||||
const Shader::IR::Program& program) {
|
||||
Shader::Profile profile{base_profile};
|
||||
|
@ -893,6 +999,9 @@ Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
|
|||
if (key.state.topology == Maxwell::PrimitiveTopology::Points) {
|
||||
profile.fixed_state_point_size = point_size;
|
||||
}
|
||||
if (key.state.xfb_enabled != 0) {
|
||||
profile.xfb_varyings = MakeTransformFeedbackVaryings(key);
|
||||
}
|
||||
profile.convert_depth_mode = gl_ndc;
|
||||
}
|
||||
std::ranges::transform(key.state.attributes, profile.generic_input_types.begin(),
|
||||
|
@ -902,6 +1011,9 @@ Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
|
|||
if (program.output_topology == Shader::OutputTopology::PointList) {
|
||||
profile.fixed_state_point_size = point_size;
|
||||
}
|
||||
if (key.state.xfb_enabled != 0) {
|
||||
profile.xfb_varyings = MakeTransformFeedbackVaryings(key);
|
||||
}
|
||||
profile.convert_depth_mode = gl_ndc;
|
||||
break;
|
||||
default:
|
||||
|
|
Reference in New Issue