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[shader_recompiler] Fix Shuffle handling for Position attributes (#3406)

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This fixes the rescaling path to properly convert to F32, matching native 1x behavior for any resolution.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3406
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: MaranBr <maranbr@outlook.com>
Co-committed-by: MaranBr <maranbr@outlook.com>
This commit is contained in:
MaranBr
2026-02-12 01:34:25 +01:00
committed by crueter
parent 634686d59b
commit 7d81a724ef
2 changed files with 8 additions and 12 deletions
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src/shader_recompiler/ir_opt/rescaling_pass.cpp
+7 -3
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@@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@@ -63,10 +66,11 @@ void VisitMark(IR::Block& block, IR::Inst& inst) {
}
if (must_patch_outside) {
const auto it{IR::Block::InstructionList::s_iterator_to(inst)};
IR::IREmitter ir{block, IR::Block::InstructionList::s_iterator_to(inst)};
const IR::F32 new_inst{&*block.PrependNewInst(it, inst)};
IR::IREmitter ir{block, it};
IR::Inst* const new_inst{&*block.PrependNewInst(it, inst)};
const IR::F32 new_bitcast{ir.ConvertUToF(32, 32, IR::Value{new_inst})};
const IR::F32 up_factor{ir.FPRecip(ir.ResolutionDownFactor())};
const IR::Value converted{ir.FPMul(new_inst, up_factor)};
const IR::Value converted{ir.FPMul(new_bitcast, up_factor)};
inst.ReplaceUsesWith(converted);
}
break;