diff options
Diffstat (limited to 'src/video_core/shader')
| -rw-r--r-- | src/video_core/shader/decode/other.cpp | 2 | ||||
| -rw-r--r-- | src/video_core/shader/decode/warp.cpp | 79 | ||||
| -rw-r--r-- | src/video_core/shader/node.h | 12 |
3 files changed, 49 insertions, 44 deletions
diff --git a/src/video_core/shader/decode/other.cpp b/src/video_core/shader/decode/other.cpp index 116b95f76..17cd45d3c 100644 --- a/src/video_core/shader/decode/other.cpp +++ b/src/video_core/shader/decode/other.cpp @@ -256,7 +256,7 @@ u32 ShaderIR::DecodeOther(NodeBlock& bb, u32 pc) { break; } case OpCode::Id::DEPBAR: { - LOG_WARNING(HW_GPU, "DEPBAR instruction is stubbed"); + LOG_DEBUG(HW_GPU, "DEPBAR instruction is stubbed"); break; } default: diff --git a/src/video_core/shader/decode/warp.cpp b/src/video_core/shader/decode/warp.cpp index fa8a250cc..d98d0e1dd 100644 --- a/src/video_core/shader/decode/warp.cpp +++ b/src/video_core/shader/decode/warp.cpp @@ -17,6 +17,7 @@ using Tegra::Shader::ShuffleOperation; using Tegra::Shader::VoteOperation; namespace { + OperationCode GetOperationCode(VoteOperation vote_op) { switch (vote_op) { case VoteOperation::All: @@ -30,6 +31,7 @@ OperationCode GetOperationCode(VoteOperation vote_op) { return OperationCode::VoteAll; } } + } // Anonymous namespace u32 ShaderIR::DecodeWarp(NodeBlock& bb, u32 pc) { @@ -46,50 +48,59 @@ u32 ShaderIR::DecodeWarp(NodeBlock& bb, u32 pc) { break; } case OpCode::Id::SHFL: { - Node width = [this, instr] { - Node mask = instr.shfl.is_mask_imm ? Immediate(static_cast<u32>(instr.shfl.mask_imm)) - : GetRegister(instr.gpr39); - - // Convert the obscure SHFL mask back into GL_NV_shader_thread_shuffle's width. This has - // been done reversing Nvidia's math. It won't work on all cases due to SHFL having - // different parameters that don't properly map to GLSL's interface, but it should work - // for cases emitted by Nvidia's compiler. - if (instr.shfl.operation == ShuffleOperation::Up) { - return Operation( - OperationCode::ILogicalShiftRight, - Operation(OperationCode::IAdd, std::move(mask), Immediate(-0x2000)), - Immediate(8)); - } else { - return Operation(OperationCode::ILogicalShiftRight, - Operation(OperationCode::IAdd, Immediate(0x201F), - Operation(OperationCode::INegate, std::move(mask))), - Immediate(8)); - } - }(); + Node mask = instr.shfl.is_mask_imm ? Immediate(static_cast<u32>(instr.shfl.mask_imm)) + : GetRegister(instr.gpr39); + Node index = instr.shfl.is_index_imm ? Immediate(static_cast<u32>(instr.shfl.index_imm)) + : GetRegister(instr.gpr20); + + Node thread_id = Operation(OperationCode::ThreadId); + Node clamp = Operation(OperationCode::IBitwiseAnd, mask, Immediate(0x1FU)); + Node seg_mask = BitfieldExtract(mask, 8, 16); - const auto [operation, in_range] = [instr]() -> std::pair<OperationCode, OperationCode> { + Node neg_seg_mask = Operation(OperationCode::IBitwiseNot, seg_mask); + Node min_thread_id = Operation(OperationCode::IBitwiseAnd, thread_id, seg_mask); + Node max_thread_id = Operation(OperationCode::IBitwiseOr, min_thread_id, + Operation(OperationCode::IBitwiseAnd, clamp, neg_seg_mask)); + + Node src_thread_id = [instr, index, neg_seg_mask, min_thread_id, thread_id] { switch (instr.shfl.operation) { case ShuffleOperation::Idx: - return {OperationCode::ShuffleIndexed, OperationCode::InRangeShuffleIndexed}; - case ShuffleOperation::Up: - return {OperationCode::ShuffleUp, OperationCode::InRangeShuffleUp}; + return Operation(OperationCode::IBitwiseOr, + Operation(OperationCode::IBitwiseAnd, index, neg_seg_mask), + min_thread_id); case ShuffleOperation::Down: - return {OperationCode::ShuffleDown, OperationCode::InRangeShuffleDown}; + return Operation(OperationCode::IAdd, thread_id, index); + case ShuffleOperation::Up: + return Operation(OperationCode::IAdd, thread_id, + Operation(OperationCode::INegate, index)); case ShuffleOperation::Bfly: - return {OperationCode::ShuffleButterfly, OperationCode::InRangeShuffleButterfly}; + return Operation(OperationCode::IBitwiseXor, thread_id, index); } - UNREACHABLE_MSG("Invalid SHFL operation: {}", - static_cast<u64>(instr.shfl.operation.Value())); - return {}; + UNREACHABLE(); + return Immediate(0U); }(); - // Setting the predicate before the register is intentional to avoid overwriting. - Node index = instr.shfl.is_index_imm ? Immediate(static_cast<u32>(instr.shfl.index_imm)) - : GetRegister(instr.gpr20); - SetPredicate(bb, instr.shfl.pred48, Operation(in_range, index, width)); + Node in_bounds = [instr, src_thread_id, min_thread_id, max_thread_id] { + if (instr.shfl.operation == ShuffleOperation::Up) { + return Operation(OperationCode::LogicalIGreaterEqual, src_thread_id, min_thread_id); + } else { + return Operation(OperationCode::LogicalILessEqual, src_thread_id, max_thread_id); + } + }(); + + SetPredicate(bb, instr.shfl.pred48, in_bounds); SetRegister( bb, instr.gpr0, - Operation(operation, GetRegister(instr.gpr8), std::move(index), std::move(width))); + Operation(OperationCode::ShuffleIndexed, GetRegister(instr.gpr8), src_thread_id)); + break; + } + case OpCode::Id::FSWZADD: { + UNIMPLEMENTED_IF(instr.fswzadd.ndv); + + Node op_a = GetRegister(instr.gpr8); + Node op_b = GetRegister(instr.gpr20); + Node mask = Immediate(static_cast<u32>(instr.fswzadd.swizzle)); + SetRegister(bb, instr.gpr0, Operation(OperationCode::FSwizzleAdd, op_a, op_b, mask)); break; } default: diff --git a/src/video_core/shader/node.h b/src/video_core/shader/node.h index 4300d9ff4..54217e6a4 100644 --- a/src/video_core/shader/node.h +++ b/src/video_core/shader/node.h @@ -47,6 +47,7 @@ enum class OperationCode { FTrunc, /// (MetaArithmetic, float a) -> float FCastInteger, /// (MetaArithmetic, int a) -> float FCastUInteger, /// (MetaArithmetic, uint a) -> float + FSwizzleAdd, /// (float a, float b, uint mask) -> float IAdd, /// (MetaArithmetic, int a, int b) -> int IMul, /// (MetaArithmetic, int a, int b) -> int @@ -181,15 +182,8 @@ enum class OperationCode { VoteAny, /// (bool) -> bool VoteEqual, /// (bool) -> bool - ShuffleIndexed, /// (uint value, uint index, uint width) -> uint - ShuffleUp, /// (uint value, uint index, uint width) -> uint - ShuffleDown, /// (uint value, uint index, uint width) -> uint - ShuffleButterfly, /// (uint value, uint index, uint width) -> uint - - InRangeShuffleIndexed, /// (uint index, uint width) -> bool - InRangeShuffleUp, /// (uint index, uint width) -> bool - InRangeShuffleDown, /// (uint index, uint width) -> bool - InRangeShuffleButterfly, /// (uint index, uint width) -> bool + ThreadId, /// () -> uint + ShuffleIndexed, /// (uint value, uint index) -> uint Amount, }; |