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tightly pack the pipeline hash

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This commit is contained in:
Samuliak 2024-07-06 09:00:08 +02:00
parent 5d5df1931f
commit 559d194cc7
3 changed files with 19 additions and 15 deletions
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27
include/renderer_mtl/mtl_draw_pipeline_cache.hpp
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@ -6,19 +6,21 @@ using namespace PICA;
namespace Metal {
struct DrawPipelineHash {
struct DrawPipelineHash { // 62 bits
// Formats
ColorFmt colorFmt;
DepthFmt depthFmt;
ColorFmt colorFmt; // 3 bits
DepthFmt depthFmt; // 3 bits
// Blending
bool blendEnabled;
u32 blendControl;
bool blendEnabled; // 1 bit
u32 blendControl; // 32 bits
// Specialization constants
bool lightingEnabled;
u8 lightingNumLights;
u8 lightingConfig1;
// Specialization constants (23 bits)
bool lightingEnabled; // 1 bit
u8 lightingNumLights; // 3 bits
u8 lightingConfig1; // 7 bits
// | ref | func | on |
u16 alphaControl; // 12 bits (mask: 11111111 0111 0001)
};
// Bind the vertex buffer to binding 30 so that it doesn't occupy the lower indices
@ -43,8 +45,8 @@ public:
}
MTL::RenderPipelineState* get(DrawPipelineHash hash) {
u16 fragmentFunctionHash = ((u8)hash.lightingEnabled << 12) | (hash.lightingNumLights << 8) | hash.lightingConfig1;
u64 pipelineHash = ((u64)hash.colorFmt << 52) | ((u64)hash.depthFmt << 49) | ((u64)hash.blendEnabled << 48) | ((u64)hash.blendControl << 16) | fragmentFunctionHash;
u32 fragmentFunctionHash = ((u32)hash.lightingEnabled << 22) | ((u32)hash.lightingNumLights << 19) | ((u32)hash.lightingConfig1 << 12) | ((((u32)hash.alphaControl & 0b1111111100000000) >> 8) << 4) | ((((u32)hash.alphaControl & 0b01110000) >> 4) << 1) | ((u32)hash.alphaControl & 0b0001);
u64 pipelineHash = ((u64)hash.colorFmt << 59) | ((u64)hash.depthFmt << 56) | ((u64)hash.blendEnabled << 55) | ((u64)hash.blendControl << 23) | fragmentFunctionHash;
auto& pipeline = pipelineCache[pipelineHash];
if (!pipeline) {
auto& fragmentFunction = fragmentFunctionCache[fragmentFunctionHash];
@ -53,6 +55,7 @@ public:
constants->setConstantValue(&hash.lightingEnabled, MTL::DataTypeBool, NS::UInteger(0));
constants->setConstantValue(&hash.lightingNumLights, MTL::DataTypeUChar, NS::UInteger(1));
constants->setConstantValue(&hash.lightingConfig1, MTL::DataTypeUChar, NS::UInteger(2));
constants->setConstantValue(&hash.alphaControl, MTL::DataTypeUShort, NS::UInteger(3));
NS::Error* error = nullptr;
fragmentFunction = library->newFunction(NS::String::string("fragmentDraw", NS::ASCIIStringEncoding), constants, &error);
@ -116,7 +119,7 @@ public:
private:
std::unordered_map<u64, MTL::RenderPipelineState*> pipelineCache;
std::unordered_map<u16, MTL::Function*> fragmentFunctionCache;
std::unordered_map<u32, MTL::Function*> fragmentFunctionCache;
MTL::Device* device;
MTL::Library* library;