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Support gl_BackColor attribute

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This commit is contained in:
vonchenplus 2021-10-26 23:01:57 +08:00
parent 3c8c17be4d
commit b04c7b6343
3 changed files with 33 additions and 0 deletions
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16
src/shader_recompiler/backend/spirv/emit_context.cpp
View file

@ -1286,6 +1286,14 @@ void EmitContext::DefineInputs(const IR::Program& program) {
Decorate(id, spv::Decoration::Location, location);
input_front_color = id;
}
if (loads.AnyComponent(IR::Attribute::ColorBackDiffuseR)) {
const size_t location = FindNextUnusedLocation(used_locations, previous_unused_location);
previous_unused_location = location;
used_locations.set(location);
const Id id{DefineInput(*this, F32[4], true)};
Decorate(id, spv::Decoration::Location, location);
input_back_color = id;
}
for (size_t index = 0; index < NUM_FIXEDFNCTEXTURE; ++index) {
if (loads.AnyComponent(IR::Attribute::FixedFncTexture0S + index * 4)) {
const size_t location =
@ -1363,6 +1371,14 @@ void EmitContext::DefineOutputs(const IR::Program& program) {
Decorate(id, spv::Decoration::Location, static_cast<u32>(location));
output_front_color = id;
}
if (info.stores.AnyComponent(IR::Attribute::ColorBackDiffuseR)) {
const size_t location = FindNextUnusedLocation(used_locations, previous_unused_location);
previous_unused_location = location;
used_locations.set(location);
const Id id{DefineOutput(*this, F32[4], invocations)};
Decorate(id, spv::Decoration::Location, static_cast<u32>(location));
output_back_color = id;
}
for (size_t index = 0; index < NUM_FIXEDFNCTEXTURE; ++index) {
if (info.stores.AnyComponent(IR::Attribute::FixedFncTexture0S + index * 4)) {
const size_t location =

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

@ -269,12 +269,14 @@ public:
Id input_position{};
Id input_front_color{};
Id input_back_color{};
std::array<Id, 10> input_fixed_fnc_textures{};
std::array<Id, 32> input_generics{};
Id output_point_size{};
Id output_position{};
Id output_front_color{};
Id output_back_color{};
std::array<Id, 10> output_fixed_fnc_textures{};
std::array<std::array<GenericElementInfo, 4>, 32> output_generics{};

15
src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
View file

@ -119,6 +119,14 @@ std::optional<OutAttr> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
const Id element_id{ctx.Const(element)};
return OutputAccessChain(ctx, ctx.output_f32, ctx.output_front_color, element_id);
}
case IR::Attribute::ColorBackDiffuseR:
case IR::Attribute::ColorBackDiffuseG:
case IR::Attribute::ColorBackDiffuseB:
case IR::Attribute::ColorBackDiffuseA: {
const u32 element{static_cast<u32>(attr) % 4};
const Id element_id{ctx.Const(element)};
return OutputAccessChain(ctx, ctx.output_f32, ctx.output_back_color, element_id);
}
case IR::Attribute::ClipDistance0:
case IR::Attribute::ClipDistance1:
case IR::Attribute::ClipDistance2:
@ -363,6 +371,13 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex) {
return ctx.OpLoad(ctx.F32[1], AttrPointer(ctx, ctx.input_f32, vertex, ctx.input_front_color,
ctx.Const(element)));
}
case IR::Attribute::ColorBackDiffuseR:
case IR::Attribute::ColorBackDiffuseG:
case IR::Attribute::ColorBackDiffuseB:
case IR::Attribute::ColorBackDiffuseA: {
return ctx.OpLoad(ctx.F32[1], AttrPointer(ctx, ctx.input_f32, vertex, ctx.input_back_color,
ctx.Const(element)));
}
case IR::Attribute::InstanceId:
if (ctx.profile.support_vertex_instance_id) {
return ctx.OpBitcast(ctx.F32[1], ctx.OpLoad(ctx.U32[1], ctx.instance_id));