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glsl: Obey need_declared_frag_colors to declare and initialize all frag_color

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Fixes Ori and the blind forest title screen
This commit is contained in:
ameerj 2021-06-15 21:01:44 -04:00
parent d36f667bc0
commit 12ef06ba8b
2 changed files with 10 additions and 1 deletions
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2
src/shader_recompiler/backend/glsl/emit_context.cpp
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@ -340,7 +340,7 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
header += fmt::format("layout(location={})patch {} vec4 patch{};", index, qualifier, index);
}
for (size_t index = 0; index < info.stores_frag_color.size(); ++index) {
if (!info.stores_frag_color[index]) {
if (!info.stores_frag_color[index] && !profile.need_declared_frag_colors) {
continue;
}
header += fmt::format("layout(location={})out vec4 frag_color{};", index, index);

9
src/shader_recompiler/backend/glsl/emit_glsl_special.cpp
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@ -8,6 +8,7 @@
#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
#include "shader_recompiler/frontend/ir/program.h"
#include "shader_recompiler/frontend/ir/value.h"
#include "shader_recompiler/profile.h"
namespace Shader::Backend::GLSL {
namespace {
@ -58,6 +59,14 @@ void EmitPrologue(EmitContext& ctx) {
if (ctx.StageInitializesVaryings()) {
InitializeVaryings(ctx);
}
if (ctx.stage == Stage::Fragment && ctx.profile.need_declared_frag_colors) {
for (size_t index = 0; index < ctx.info.stores_frag_color.size(); ++index) {
if (ctx.info.stores_frag_color[index]) {
continue;
}
ctx.Add("frag_color{}=vec4(0,0,0,1);", index);
}
}
}
void EmitEpilogue(EmitContext&) {}