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shader_recompiler: use default value for clip distances array

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This commit is contained in:
Liam 2023-12-26 19:32:47 -05:00
parent 6697b665ca
commit d0c60605ab
1 changed files with 13 additions and 7 deletions
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20
src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
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@ -96,9 +96,9 @@ Id ImageType(EmitContext& ctx, const ImageDescriptor& desc, Id sampled_type) {
} }
Id DefineVariable(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin, Id DefineVariable(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin,
spv::StorageClass storage_class) { spv::StorageClass storage_class, std::optional<Id> initializer = std::nullopt) {
const Id pointer_type{ctx.TypePointer(storage_class, type)}; const Id pointer_type{ctx.TypePointer(storage_class, type)};
const Id id{ctx.AddGlobalVariable(pointer_type, storage_class)}; const Id id{ctx.AddGlobalVariable(pointer_type, storage_class, initializer)};
if (builtin) { if (builtin) {
ctx.Decorate(id, spv::Decoration::BuiltIn, *builtin); ctx.Decorate(id, spv::Decoration::BuiltIn, *builtin);
} }
@ -144,11 +144,12 @@ Id DefineInput(EmitContext& ctx, Id type, bool per_invocation,
} }
Id DefineOutput(EmitContext& ctx, Id type, std::optional<u32> invocations, Id DefineOutput(EmitContext& ctx, Id type, std::optional<u32> invocations,
std::optional<spv::BuiltIn> builtin = std::nullopt) { std::optional<spv::BuiltIn> builtin = std::nullopt,
std::optional<Id> initializer = std::nullopt) {
if (invocations && ctx.stage == Stage::TessellationControl) { if (invocations && ctx.stage == Stage::TessellationControl) {
type = ctx.TypeArray(type, ctx.Const(*invocations)); type = ctx.TypeArray(type, ctx.Const(*invocations));
} }
return DefineVariable(ctx, type, builtin, spv::StorageClass::Output); return DefineVariable(ctx, type, builtin, spv::StorageClass::Output, initializer);
} }
void DefineGenericOutput(EmitContext& ctx, size_t index, std::optional<u32> invocations) { void DefineGenericOutput(EmitContext& ctx, size_t index, std::optional<u32> invocations) {
@ -1541,9 +1542,14 @@ void EmitContext::DefineOutputs(const IR::Program& program) {
throw NotImplementedException("Storing ClipDistance in fragment stage"); throw NotImplementedException("Storing ClipDistance in fragment stage");
} }
if (profile.max_user_clip_distances > 0) { if (profile.max_user_clip_distances > 0) {
const Id type{TypeArray(F32[1], Const(std::min(info.used_clip_distances, const u32 used{std::min(profile.max_user_clip_distances, 8u)};
profile.max_user_clip_distances)))}; const std::array<Id, 8> zero{f32_zero_value, f32_zero_value, f32_zero_value,
clip_distances = DefineOutput(*this, type, invocations, spv::BuiltIn::ClipDistance); f32_zero_value, f32_zero_value, f32_zero_value,
f32_zero_value, f32_zero_value};
const Id type{TypeArray(F32[1], Const(used))};
const Id initializer{ConstantComposite(type, std::span(zero).subspan(0, used))};
clip_distances =
DefineOutput(*this, type, invocations, spv::BuiltIn::ClipDistance, initializer);
} }
} }
if (info.stores[IR::Attribute::Layer] && if (info.stores[IR::Attribute::Layer] &&