diff options
Diffstat (limited to 'src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp')
-rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp new file mode 100644 index 000000000..518b78f06 --- /dev/null +++ b/src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp @@ -0,0 +1,79 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <string_view> + +#include "shader_recompiler/backend/glsl/emit_context.h" +#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h" +#include "shader_recompiler/frontend/ir/value.h" + +namespace Shader::Backend::GLSL { +namespace { +constexpr char cas_loop[]{"for(;;){{uint old_value={};uint " + "cas_result=atomicCompSwap({},old_value,bitfieldInsert({},{},{},{}));" + "if(cas_result==old_value){{break;}}}}"}; + +void SharedWriteCas(EmitContext& ctx, std::string_view offset, std::string_view value, + std::string_view bit_offset, u32 num_bits) { + const auto smem{fmt::format("smem[{}>>2]", offset)}; + ctx.Add(cas_loop, smem, smem, smem, value, bit_offset, num_bits); +} +} // Anonymous namespace + +void EmitLoadSharedU8(EmitContext& ctx, IR::Inst& inst, std::string_view offset) { + ctx.AddU32("{}=bitfieldExtract(smem[{}>>2],int({}%4)*8,8);", inst, offset, offset); +} + +void EmitLoadSharedS8(EmitContext& ctx, IR::Inst& inst, std::string_view offset) { + ctx.AddU32("{}=bitfieldExtract(int(smem[{}>>2]),int({}%4)*8,8);", inst, offset, offset); +} + +void EmitLoadSharedU16(EmitContext& ctx, IR::Inst& inst, std::string_view offset) { + ctx.AddU32("{}=bitfieldExtract(smem[{}>>2],int(({}>>1)%2)*16,16);", inst, offset, offset); +} + +void EmitLoadSharedS16(EmitContext& ctx, IR::Inst& inst, std::string_view offset) { + ctx.AddU32("{}=bitfieldExtract(int(smem[{}>>2]),int(({}>>1)%2)*16,16);", inst, offset, offset); +} + +void EmitLoadSharedU32(EmitContext& ctx, IR::Inst& inst, std::string_view offset) { + ctx.AddU32("{}=smem[{}>>2];", inst, offset); +} + +void EmitLoadSharedU64(EmitContext& ctx, IR::Inst& inst, std::string_view offset) { + ctx.AddU32x2("{}=uvec2(smem[{}>>2],smem[({}+4)>>2]);", inst, offset, offset); +} + +void EmitLoadSharedU128(EmitContext& ctx, IR::Inst& inst, std::string_view offset) { + ctx.AddU32x4("{}=uvec4(smem[{}>>2],smem[({}+4)>>2],smem[({}+8)>>2],smem[({}+12)>>2]);", inst, + offset, offset, offset, offset); +} + +void EmitWriteSharedU8(EmitContext& ctx, std::string_view offset, std::string_view value) { + const auto bit_offset{fmt::format("int({}%4)*8", offset)}; + SharedWriteCas(ctx, offset, value, bit_offset, 8); +} + +void EmitWriteSharedU16(EmitContext& ctx, std::string_view offset, std::string_view value) { + const auto bit_offset{fmt::format("int(({}>>1)%2)*16", offset)}; + SharedWriteCas(ctx, offset, value, bit_offset, 16); +} + +void EmitWriteSharedU32(EmitContext& ctx, std::string_view offset, std::string_view value) { + ctx.Add("smem[{}>>2]={};", offset, value); +} + +void EmitWriteSharedU64(EmitContext& ctx, std::string_view offset, std::string_view value) { + ctx.Add("smem[{}>>2]={}.x;", offset, value); + ctx.Add("smem[({}+4)>>2]={}.y;", offset, value); +} + +void EmitWriteSharedU128(EmitContext& ctx, std::string_view offset, std::string_view value) { + ctx.Add("smem[{}>>2]={}.x;", offset, value); + ctx.Add("smem[({}+4)>>2]={}.y;", offset, value); + ctx.Add("smem[({}+8)>>2]={}.z;", offset, value); + ctx.Add("smem[({}+12)>>2]={}.w;", offset, value); +} + +} // namespace Shader::Backend::GLSL |