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| author | ReinUsesLisp <reinuseslisp@airmail.cc> | 2021-01-09 03:30:07 -0300 |
|---|---|---|
| committer | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-07-22 21:51:21 -0400 |
| commit | 2d48a7b4d0666ad16d03a22d85712617a0849046 (patch) | |
| tree | dd1069afca86f66e77e3438da77421a43adf5091 /src/shader_recompiler/frontend/ir/opcode.cpp | |
| parent | 75059c46d645e42e8da31fb97d003047c67b004b (diff) | |
shader: Initial recompiler work
Diffstat (limited to 'src/shader_recompiler/frontend/ir/opcode.cpp')
| -rw-r--r-- | src/shader_recompiler/frontend/ir/opcode.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/ir/opcode.cpp b/src/shader_recompiler/frontend/ir/opcode.cpp new file mode 100644 index 0000000000..65d0740296 --- /dev/null +++ b/src/shader_recompiler/frontend/ir/opcode.cpp @@ -0,0 +1,67 @@ +// Copyright 2021 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <algorithm> +#include <array> +#include <string_view> + +#include "shader_recompiler/exception.h" +#include "shader_recompiler/frontend/ir/opcode.h" + +namespace Shader::IR { +namespace { +struct OpcodeMeta { + std::string_view name; + Type type; + std::array<Type, 4> arg_types; +}; + +using enum Type; + +constexpr std::array META_TABLE{ +#define OPCODE(name_token, type_token, ...) \ + OpcodeMeta{ \ + .name{#name_token}, \ + .type{type_token}, \ + .arg_types{__VA_ARGS__}, \ + }, +#include "opcode.inc" +#undef OPCODE +}; + +void ValidateOpcode(Opcode op) { + const size_t raw{static_cast<size_t>(op)}; + if (raw >= META_TABLE.size()) { + throw InvalidArgument("Invalid opcode with raw value {}", raw); + } +} +} // Anonymous namespace + +Type TypeOf(Opcode op) { + ValidateOpcode(op); + return META_TABLE[static_cast<size_t>(op)].type; +} + +size_t NumArgsOf(Opcode op) { + ValidateOpcode(op); + const auto& arg_types{META_TABLE[static_cast<size_t>(op)].arg_types}; + const auto distance{std::distance(arg_types.begin(), std::ranges::find(arg_types, Type::Void))}; + return static_cast<size_t>(distance); +} + +Type ArgTypeOf(Opcode op, size_t arg_index) { + ValidateOpcode(op); + const auto& arg_types{META_TABLE[static_cast<size_t>(op)].arg_types}; + if (arg_index >= arg_types.size() || arg_types[arg_index] == Type::Void) { + throw InvalidArgument("Out of bounds argument"); + } + return arg_types[arg_index]; +} + +std::string_view NameOf(Opcode op) { + ValidateOpcode(op); + return META_TABLE[static_cast<size_t>(op)].name; +} + +} // namespace Shader::IR |