diff options
Diffstat (limited to '')
| -rw-r--r-- | src/shader_recompiler/backend/spirv/emit_spirv_special.cpp | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp index fee740c08..7af29e4dd 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp @@ -22,6 +22,21 @@ void SetFixedPipelinePointSize(EmitContext& ctx) { ctx.OpStore(ctx.output_point_size, ctx.Constant(ctx.F32[1], point_size)); } } + +Id DefaultVarying(EmitContext& ctx, u32 num_components, u32 element, Id zero, Id one, + Id default_vector) { + switch (num_components) { + case 1: + return element == 3 ? one : zero; + case 2: + return ctx.ConstantComposite(ctx.F32[2], zero, element + 1 == 3 ? one : zero); + case 3: + return ctx.ConstantComposite(ctx.F32[3], zero, zero, element + 2 == 3 ? one : zero); + case 4: + return default_vector; + } + throw InvalidArgument("Bad element"); +} } // Anonymous namespace void EmitPrologue(EmitContext& ctx) { @@ -30,9 +45,17 @@ void EmitPrologue(EmitContext& ctx) { const Id one{ctx.Constant(ctx.F32[1], 1.0f)}; const Id default_vector{ctx.ConstantComposite(ctx.F32[4], zero, zero, zero, one)}; ctx.OpStore(ctx.output_position, default_vector); - for (const Id generic_id : ctx.output_generics) { - if (Sirit::ValidId(generic_id)) { - ctx.OpStore(generic_id, default_vector); + for (const auto& info : ctx.output_generics) { + if (info[0].num_components == 0) { + continue; + } + u32 element{0}; + while (element < 4) { + const auto& element_info{info[element]}; + const u32 num{element_info.num_components}; + const Id value{DefaultVarying(ctx, num, element, zero, one, default_vector)}; + ctx.OpStore(element_info.id, value); + element += num; } } } |