From d400b618a76ab0b08adfcb808ca8a8e336e1d573 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Fri, 18 Mar 2022 09:26:25 -0400
Subject: [PATCH] shader_recompiler/EXIT: skip render targets with no outputs
---
.../frontend/maxwell/translate/impl/exit_program.cpp | 3 +++
src/shader_recompiler/program_header.h | 5 +++++
2 files changed, 8 insertions(+)
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/exit_program.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/exit_program.cpp
index 1abe0dda6..537b5bde2 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/exit_program.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/exit_program.cpp
@@ -12,6 +12,9 @@ void ExitFragment(TranslatorVisitor& v) {
const ProgramHeader sph{v.env.SPH()};
IR::Reg src_reg{IR::Reg::R0};
for (u32 render_target = 0; render_target < 8; ++render_target) {
+ if (!sph.ps.HasOutputComponents(render_target)) {
+ continue;
+ }
const std::array<bool, 4> mask{sph.ps.EnabledOutputComponents(render_target)};
for (u32 component = 0; component < 4; ++component) {
if (!mask[component]) {
diff --git a/src/shader_recompiler/program_header.h b/src/shader_recompiler/program_header.h
index bd6c2bfb5..5e42ab5a3 100644
--- a/src/shader_recompiler/program_header.h
+++ b/src/shader_recompiler/program_header.h
@@ -196,6 +196,11 @@ struct ProgramHeader {
return {(bits & 1) != 0, (bits & 2) != 0, (bits & 4) != 0, (bits & 8) != 0};
}
+ [[nodiscard]] bool HasOutputComponents(u32 rt) const noexcept {
+ const u32 bits{omap.target >> (rt * 4)};
+ return bits & (1 | 2 | 4 | 8);
+ }
+
[[nodiscard]] std::array<PixelImap, 4> GenericInputMap(u32 attribute) const {
const auto& vector{imap_generic_vector[attribute]};
return {vector.x, vector.y, vector.z, vector.w};