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[Shader JIT[ Cache harder

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wheremyfoodat 2023-06-07 21:25:46 +03:00
parent 4064abfdeb
commit 6a70edca7e
3 changed files with 19 additions and 1 deletions
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1
CMakeLists.txt
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@ -58,6 +58,7 @@ endif()
# Check for arm64 # Check for arm64
if (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64") if (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
set(HOST_ARM64 TRUE) set(HOST_ARM64 TRUE)
add_compile_definitions(PANDA3DS_ARM64_HOST)
else() else()
set(HOST_ARM64 FALSE) set(HOST_ARM64 FALSE)
endif() endif()

8
include/PICA/dynapica/shader_rec.hpp
View file

@ -3,13 +3,19 @@
#if defined(PANDA3DS_DYNAPICA_SUPPORTED) && defined(PANDA3DS_X64_HOST) #if defined(PANDA3DS_DYNAPICA_SUPPORTED) && defined(PANDA3DS_X64_HOST)
#define PANDA3DS_SHADER_JIT_SUPPORTED #define PANDA3DS_SHADER_JIT_SUPPORTED
#include <memory>
#include <unordered_map> #include <unordered_map>
#ifdef PANDA3DS_X64_HOST
#include "xbyak/xbyak.h"
using ShaderEmitter = Xbyak::CodeGenerator;
#endif
#endif #endif
class ShaderJIT { class ShaderJIT {
#ifdef PANDA3DS_SHADER_JIT_SUPPORTED #ifdef PANDA3DS_SHADER_JIT_SUPPORTED
using Hash = PICAShader::Hash; using Hash = PICAShader::Hash;
using ShaderCache = std::unordered_map<Hash, int>; using ShaderCache = std::unordered_map<Hash, std::unique_ptr<ShaderEmitter>>;
ShaderCache cache; ShaderCache cache;
void compileShader(PICAShader& shaderUnit); void compileShader(PICAShader& shaderUnit);

11
src/core/PICA/dynapica/shader_rec.cpp
View file

@ -9,6 +9,17 @@ void ShaderJIT::reset() {
void ShaderJIT::prepare(PICAShader& shaderUnit) { void ShaderJIT::prepare(PICAShader& shaderUnit) {
// We construct a shader hash from both the code and operand descriptor hashes // We construct a shader hash from both the code and operand descriptor hashes
// This is so that if only one of them changes, we still properly recompile the shader // This is so that if only one of them changes, we still properly recompile the shader
// This code is inspired from how Citra solves this problem
Hash hash = shaderUnit.getCodeHash() ^ shaderUnit.getOpdescHash(); Hash hash = shaderUnit.getCodeHash() ^ shaderUnit.getOpdescHash();
auto it = cache.find(hash);
if (it == cache.end()) { // Block has not been compiled yet
auto emitter = std::make_unique<ShaderEmitter>();
cache.emplace_hint(it, hash, std::move(emitter));
} else { // Block has been compiled and found, use it
}
shaderUnit.pc = shaderUnit.entrypoint;
} }
#endif // PANDA3DS_SHADER_JIT_SUPPORTED #endif // PANDA3DS_SHADER_JIT_SUPPORTED