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spirv: Implement ViewportMask with NV_viewport_array2

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This commit is contained in:
ReinUsesLisp 2021-04-16 16:31:15 -03:00 • committed by ameerj
parent 4657cf78fd
commit e3514bcd6b
10 changed files with 32 additions and 0 deletions
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4
src/shader_recompiler/backend/spirv/emit_context.cpp
View file

@ -457,6 +457,7 @@ void EmitContext::DefineCommonTypes(const Info& info) {
input_s32 = Name(TypePointer(spv::StorageClass::Input, TypeInt(32, true)), "input_s32");
output_f32 = Name(TypePointer(spv::StorageClass::Output, F32[1]), "output_f32");
output_u32 = Name(TypePointer(spv::StorageClass::Output, U32[1]), "output_u32");
if (info.uses_int8) {
AddCapability(spv::Capability::Int8);
@ -1131,6 +1132,9 @@ void EmitContext::DefineOutputs(const IR::Program& program) {
}
viewport_index = DefineOutput(*this, U32[1], invocations, spv::BuiltIn::ViewportIndex);
}
if (info.stores_viewport_mask && profile.support_viewport_mask) {
viewport_mask = DefineOutput(*this, TypeArray(U32[1], Constant(U32[1], 1u)), std::nullopt);
}
for (size_t index = 0; index < info.stores_generics.size(); ++index) {
if (info.stores_generics[index]) {
DefineGenericOutput(*this, index, invocations);

2
src/shader_recompiler/backend/spirv/emit_context.h
View file

@ -134,6 +134,7 @@ public:
Id input_s32{};
Id output_f32{};
Id output_u32{};
Id image_buffer_type{};
Id sampled_texture_buffer_type{};
@ -167,6 +168,7 @@ public:
Id clip_distances{};
Id layer{};
Id viewport_index{};
Id viewport_mask{};
Id primitive_id{};
Id fswzadd_lut_a{};

4
src/shader_recompiler/backend/spirv/emit_spirv.cpp
View file

@ -303,6 +303,10 @@ void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ct
if (info.stores_viewport_index) {
ctx.AddCapability(spv::Capability::MultiViewport);
}
if (info.stores_viewport_mask && profile.support_viewport_mask) {
ctx.AddExtension("SPV_NV_viewport_array2");
ctx.AddCapability(spv::Capability::ShaderViewportMaskNV);
}
if (info.stores_layer || info.stores_viewport_index) {
if (profile.support_viewport_index_layer_non_geometry && ctx.stage != Stage::Geometry) {
ctx.AddExtension("SPV_EXT_shader_viewport_index_layer");

5
src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
View file

@ -99,6 +99,11 @@ std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
ctx.stage == Shader::Stage::Geometry
? std::optional<Id>{ctx.viewport_index}
: std::nullopt;
case IR::Attribute::ViewportMask:
if (!ctx.profile.support_viewport_mask) {
return std::nullopt;
}
return ctx.OpAccessChain(ctx.output_u32, ctx.viewport_mask, ctx.u32_zero_value);
default:
throw NotImplementedException("Read attribute {}", attr);
}