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[Shader JIT] Add caching

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wheremyfoodat 2023-06-07 20:33:37 +03:00
parent 364443d66f
commit 4064abfdeb
9 changed files with 77 additions and 5 deletions
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19
include/PICA/dynapica/shader_rec.hpp
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@ -1,22 +1,35 @@
#pragma once
#include "PICA/shader.hpp"
#if defined(PANDA3DS_DYNAPICA_SUPPORTED) && defined(PANDA3DS_X64_HOST)
#define PANDA3DS_SHADER_JIT_SUPPORTED
#include <unordered_map>
#endif
class ShaderJIT {
#ifdef PANDA3DS_SHADER_JIT_SUPPORTED
using Hash = PICAShader::Hash;
using ShaderCache = std::unordered_map<Hash, int>;
ShaderCache cache;
void compileShader(PICAShader& shaderUnit);
#endif
public:
#if defined(PANDA3DS_DYNAPICA_SUPPORTED) && defined(PANDA3DS_X64_HOST)
#define PANDA3DS_SHADER_JIT_SUPPORTED
#ifdef PANDA3DS_SHADER_JIT_SUPPORTED
// Call this before starting to process a batch of vertices
// This will read the PICA config (uploaded shader and shader operand descriptors) and search if we've already compiled this shader
// If yes, it sets it as the active shader. if not, then it compiles it, adds it to the cache, and sets it as active,
void prepare(PICAShader& shaderUnit);
void reset();
static constexpr bool isAvailable() { return true; }
#else
void prepare(PICAShader& shaderUnit) {
Helpers::panic("Vertex Loader JIT: Tried to load vertices with JIT on platform that does not support vertex loader jit");
}
void reset() {}
static constexpr bool isAvailable() { return false; }
#endif