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shader: fix auxiliary position exports

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This commit is contained in:
nmzik
2026-08-22 02:58:35 +02:00
parent c130d74efc
commit a2baaccc6e
11 changed files with 532 additions and 10 deletions
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src/graphics/shader/recompiler/ir/passes/ShaderInfoCollection.cpp
+47 -4
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@@ -269,7 +269,14 @@ void CollectBuiltinInputs(const Program& program, ShaderInfo& info) {
}
}
void CollectOutputs(const Program& program, const ShaderPixelInputInfo* pixel, ShaderInfo& info) {
bool CollectOutputs(const Program& program, const ShaderVertexInputInfo* vertex,
const ShaderPixelInputInfo* pixel, ShaderInfo& info, std::string* error) {
auto Fail = [&](std::string message) {
if (error != nullptr) {
*error = std::move(message);
}
return false;
};
for (const auto* block: program.values->blocks) {
for (const auto& inst: *block) {
if (inst.GetOpcode() != ValueOpcode::SetAttribute) {
@@ -292,8 +299,41 @@ void CollectOutputs(const Program& program, const ShaderPixelInputInfo* pixel, S
}
switch (export_info.kind) {
case ExportTargetKind::Position:
AddOutput(info, StageOutputKind::Position, export_info.index, 0,
"out_position");
if (export_info.index == 0) {
AddOutput(info, StageOutputKind::Position, 0, 0, "out_position");
break;
}
if (export_info.compr) {
return Fail("compressed auxiliary position export is unsupported");
}
for (uint32_t component = 0; component < 4; component++) {
if ((export_info.en & (1u << component)) == 0) {
continue;
}
const auto output = DecodePositionExportComponent(
vertex->pa_cl_vs_out_cntl, export_info.index, component);
if (!output.valid) {
return Fail(fmt::format("unsupported POS{} auxiliary/stereo export",
export_info.index));
}
if (output.viewport) {
return Fail("vertex viewport-index export is unsupported");
}
if (output.point_size) {
AddOutput(info, StageOutputKind::PointSize, 0, 0, "gl_PointSize");
}
if (output.layer) {
AddOutput(info, StageOutputKind::Layer, 0, 0, "gl_Layer");
}
if (output.clip_distance != UINT32_MAX) {
AddOutput(info, StageOutputKind::ClipDistance, output.clip_distance, 0,
"gl_ClipDistance");
}
if (output.cull_distance != UINT32_MAX) {
AddOutput(info, StageOutputKind::CullDistance, output.cull_distance, 0,
"gl_CullDistance");
}
}
break;
case ExportTargetKind::Parameter:
AddOutput(info, StageOutputKind::Parameter, export_info.index,
@@ -307,6 +347,7 @@ void CollectOutputs(const Program& program, const ShaderPixelInputInfo* pixel, S
}
}
}
return true;
}
} // namespace
@@ -348,7 +389,9 @@ bool CollectShaderInfo(Program& program, const ShaderInfoOptions& options, std::
default: return false;
}
CollectBuiltinInputs(program, next);
CollectOutputs(program, options.pixel, next);
if (!CollectOutputs(program, options.vertex, options.pixel, next, error)) {
return false;
}
program.info = std::move(next);
program.shader_info_complete = true;
return true;