From c67d64365a712830fe140dd36e24e2efd9b8a812 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Tue, 16 Feb 2021 20:52:12 -0300 Subject: shader: Remove old shader management --- src/video_core/shader/decode/bfe.cpp | 77 ------------------------------------ 1 file changed, 77 deletions(-) delete mode 100644 src/video_core/shader/decode/bfe.cpp (limited to 'src/video_core/shader/decode/bfe.cpp') diff --git a/src/video_core/shader/decode/bfe.cpp b/src/video_core/shader/decode/bfe.cpp deleted file mode 100644 index 8e3b46e8e..000000000 --- a/src/video_core/shader/decode/bfe.cpp +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2018 yuzu Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include "common/assert.h" -#include "common/common_types.h" -#include "video_core/engines/shader_bytecode.h" -#include "video_core/shader/node_helper.h" -#include "video_core/shader/shader_ir.h" - -namespace VideoCommon::Shader { - -using Tegra::Shader::Instruction; -using Tegra::Shader::OpCode; - -u32 ShaderIR::DecodeBfe(NodeBlock& bb, u32 pc) { - const Instruction instr = {program_code[pc]}; - const auto opcode = OpCode::Decode(instr); - - Node op_a = GetRegister(instr.gpr8); - Node op_b = [&] { - switch (opcode->get().GetId()) { - case OpCode::Id::BFE_R: - return GetRegister(instr.gpr20); - case OpCode::Id::BFE_C: - return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.GetOffset()); - case OpCode::Id::BFE_IMM: - return Immediate(instr.alu.GetSignedImm20_20()); - default: - UNREACHABLE(); - return Immediate(0); - } - }(); - - UNIMPLEMENTED_IF_MSG(instr.bfe.rd_cc, "Condition codes in BFE is not implemented"); - - const bool is_signed = instr.bfe.is_signed; - - // using reverse parallel method in - // https://graphics.stanford.edu/~seander/bithacks.html#ReverseParallel - // note for later if possible to implement faster method. - if (instr.bfe.brev) { - const auto swap = [&](u32 s, u32 mask) { - Node v1 = - SignedOperation(OperationCode::ILogicalShiftRight, is_signed, op_a, Immediate(s)); - if (mask != 0) { - v1 = SignedOperation(OperationCode::IBitwiseAnd, is_signed, std::move(v1), - Immediate(mask)); - } - Node v2 = op_a; - if (mask != 0) { - v2 = SignedOperation(OperationCode::IBitwiseAnd, is_signed, std::move(v2), - Immediate(mask)); - } - v2 = SignedOperation(OperationCode::ILogicalShiftLeft, is_signed, std::move(v2), - Immediate(s)); - return SignedOperation(OperationCode::IBitwiseOr, is_signed, std::move(v1), - std::move(v2)); - }; - op_a = swap(1, 0x55555555U); - op_a = swap(2, 0x33333333U); - op_a = swap(4, 0x0F0F0F0FU); - op_a = swap(8, 0x00FF00FFU); - op_a = swap(16, 0); - } - - const auto offset = SignedOperation(OperationCode::IBitfieldExtract, is_signed, op_b, - Immediate(0), Immediate(8)); - const auto bits = SignedOperation(OperationCode::IBitfieldExtract, is_signed, op_b, - Immediate(8), Immediate(8)); - auto result = SignedOperation(OperationCode::IBitfieldExtract, is_signed, op_a, offset, bits); - SetRegister(bb, instr.gpr0, std::move(result)); - - return pc; -} - -} // namespace VideoCommon::Shader -- cgit v1.2.3