diff options
Diffstat (limited to 'src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp')
-rw-r--r-- | src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp index 02d115740..052b84151 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp @@ -19,6 +19,10 @@ Id InputAttrPointer(EmitContext& ctx, IR::Attribute attr) { case IR::Attribute::PositionZ: case IR::Attribute::PositionW: return ctx.OpAccessChain(ctx.input_f32, ctx.input_position, element_id()); + case IR::Attribute::InstanceId: + return ctx.OpLoad(ctx.U32[1], ctx.instance_id); + case IR::Attribute::VertexId: + return ctx.OpLoad(ctx.U32[1], ctx.vertex_id); default: throw NotImplementedException("Read attribute {}", attr); } @@ -125,6 +129,18 @@ Id EmitGetCbufU64(EmitContext& ctx, const IR::Value& binding, const IR::Value& o } Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr) { + if (!ctx.profile.support_vertex_instance_id) { + switch (attr) { + case IR::Attribute::InstanceId: + return ctx.OpISub(ctx.U32[1], ctx.OpLoad(ctx.U32[1], ctx.instance_index), + ctx.OpLoad(ctx.U32[1], ctx.base_instance)); + case IR::Attribute::VertexId: + return ctx.OpISub(ctx.U32[1], ctx.OpLoad(ctx.U32[1], ctx.vertex_index), + ctx.OpLoad(ctx.U32[1], ctx.base_vertex)); + default: + break; + } + } return ctx.OpLoad(ctx.F32[1], InputAttrPointer(ctx, attr)); } |