diff options
| -rw-r--r-- | src/shader_recompiler/backend/spirv/spirv_emit_context.cpp | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp b/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp index bb9ccc0ac..89ebab08e 100644 --- a/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp +++ b/src/shader_recompiler/backend/spirv/spirv_emit_context.cpp @@ -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, - 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 id{ctx.AddGlobalVariable(pointer_type, storage_class)}; + const Id id{ctx.AddGlobalVariable(pointer_type, storage_class, initializer)}; if (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, - 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) { 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) { @@ -1541,9 +1542,14 @@ void EmitContext::DefineOutputs(const IR::Program& program) { throw NotImplementedException("Storing ClipDistance in fragment stage"); } if (profile.max_user_clip_distances > 0) { - const Id type{TypeArray(F32[1], Const(std::min(info.used_clip_distances, - profile.max_user_clip_distances)))}; - clip_distances = DefineOutput(*this, type, invocations, spv::BuiltIn::ClipDistance); + const u32 used{std::min(profile.max_user_clip_distances, 8u)}; + const std::array<Id, 8> zero{f32_zero_value, f32_zero_value, f32_zero_value, + 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] && |