diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_shader_decompiler.cpp')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 63 |
1 files changed, 55 insertions, 8 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 14834d86a..6c5402e33 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -1953,8 +1953,7 @@ private: Expression BallotThread(Operation operation) { const std::string value = VisitOperand(operation, 0).AsBool(); if (!device.HasWarpIntrinsics()) { - LOG_ERROR(Render_OpenGL, - "Nvidia warp intrinsics are not available and its required by a shader"); + LOG_ERROR(Render_OpenGL, "Nvidia vote intrinsics are required by this shader"); // Stub on non-Nvidia devices by simulating all threads voting the same as the active // one. return {fmt::format("({} ? 0xFFFFFFFFU : 0U)", value), Type::Uint}; @@ -1965,8 +1964,7 @@ private: Expression Vote(Operation operation, const char* func) { const std::string value = VisitOperand(operation, 0).AsBool(); if (!device.HasWarpIntrinsics()) { - LOG_ERROR(Render_OpenGL, - "Nvidia vote intrinsics are not available and its required by a shader"); + LOG_ERROR(Render_OpenGL, "Nvidia vote intrinsics are required by this shader"); // Stub with a warp size of one. return {value, Type::Bool}; } @@ -1983,15 +1981,54 @@ private: Expression VoteEqual(Operation operation) { if (!device.HasWarpIntrinsics()) { - LOG_ERROR(Render_OpenGL, - "Nvidia vote intrinsics are not available and its required by a shader"); - // We must return true here since a stub for a theoretical warp size of 1 will always - // return an equal result for all its votes. + LOG_ERROR(Render_OpenGL, "Nvidia vote intrinsics are required by this shader"); + // We must return true here since a stub for a theoretical warp size of 1. + // This will always return an equal result across all votes. return {"true", Type::Bool}; } return Vote(operation, "allThreadsEqualNV"); } + template <const std::string_view& func> + Expression Shuffle(Operation operation) { + const std::string value = VisitOperand(operation, 0).AsFloat(); + if (!device.HasWarpIntrinsics()) { + LOG_ERROR(Render_OpenGL, "Nvidia shuffle intrinsics are required by this shader"); + // On a "single-thread" device we are either on the same thread or out of bounds. Both + // cases return the passed value. + return {value, Type::Float}; + } + + const std::string index = VisitOperand(operation, 1).AsUint(); + const std::string width = VisitOperand(operation, 2).AsUint(); + return {fmt::format("{}({}, {}, {})", func, value, index, width), Type::Float}; + } + + template <const std::string_view& func> + Expression InRangeShuffle(Operation operation) { + const std::string index = VisitOperand(operation, 0).AsUint(); + const std::string width = VisitOperand(operation, 1).AsUint(); + if (!device.HasWarpIntrinsics()) { + // On a "single-thread" device we are only in bounds when the requested index is 0. + return {fmt::format("({} == 0U)", index), Type::Bool}; + } + + const std::string in_range = code.GenerateTemporary(); + code.AddLine("bool {};", in_range); + code.AddLine("{}(0U, {}, {}, {});", func, index, width, in_range); + return {in_range, Type::Bool}; + } + + struct Func final { + Func() = delete; + ~Func() = delete; + + static constexpr std::string_view ShuffleIndexed = "shuffleNV"; + static constexpr std::string_view ShuffleUp = "shuffleUpNV"; + static constexpr std::string_view ShuffleDown = "shuffleDownNV"; + static constexpr std::string_view ShuffleButterfly = "shuffleXorNV"; + }; + static constexpr std::array operation_decompilers = { &GLSLDecompiler::Assign, @@ -2154,6 +2191,16 @@ private: &GLSLDecompiler::VoteAll, &GLSLDecompiler::VoteAny, &GLSLDecompiler::VoteEqual, + + &GLSLDecompiler::Shuffle<Func::ShuffleIndexed>, + &GLSLDecompiler::Shuffle<Func::ShuffleUp>, + &GLSLDecompiler::Shuffle<Func::ShuffleDown>, + &GLSLDecompiler::Shuffle<Func::ShuffleButterfly>, + + &GLSLDecompiler::InRangeShuffle<Func::ShuffleIndexed>, + &GLSLDecompiler::InRangeShuffle<Func::ShuffleUp>, + &GLSLDecompiler::InRangeShuffle<Func::ShuffleDown>, + &GLSLDecompiler::InRangeShuffle<Func::ShuffleButterfly>, }; static_assert(operation_decompilers.size() == static_cast<std::size_t>(OperationCode::Amount)); |