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Fix centroid interpolation weights

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PPSA03792
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nmzik committed 2026-09-15 19:51:30 +04:00
1 parent 9cf7963f44
commit 0d9e95d96a
8 files changed
+128 -16
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src/graphics/shader/recompiler/frontend/translate/Translate.cpp
+9 -7
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@@ -1184,13 +1184,15 @@ IR::Program TranslateProgram(const Decoder::Program& decoded, const CFG::Graph&
builtin(IR::StageInputKind::PrimitiveId));
} else if (options.stage == ShaderType::Pixel) {
const auto* ps = options.input_info.pixel;
if (ps->ps_perspective_center_vgpr != UINT32_MAX) {
entry_ir.SetVectorReg(static_cast<IR::VectorReg>(ps->ps_perspective_center_vgpr),
builtin(IR::StageInputKind::BaryCoordSmooth, 0));
entry_ir.SetVectorReg(
static_cast<IR::VectorReg>(ps->ps_perspective_center_vgpr + 1u),
builtin(IR::StageInputKind::BaryCoordSmooth, 1));
}
const auto barycentric_pair = [&](uint32_t reg, IR::StageInputKind kind) {
if (reg != UINT32_MAX) {
entry_ir.SetVectorReg(static_cast<IR::VectorReg>(reg), builtin(kind, 0));
entry_ir.SetVectorReg(static_cast<IR::VectorReg>(reg + 1u), builtin(kind, 1));
}
};
barycentric_pair(ps->ps_perspective_center_vgpr, IR::StageInputKind::BaryCoordSmooth);
barycentric_pair(ps->ps_perspective_centroid_vgpr,
IR::StageInputKind::BaryCoordSmoothCentroid);
uint32_t reg = ps->ps_system_input_base;
if (ps->ps_pos_x) {
entry_ir.SetVectorReg(static_cast<IR::VectorReg>(reg++),