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implement sampler cache

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This commit is contained in:
Samuliak 2024-08-15 11:44:06 +02:00
parent 9982ac7acb
commit d79d7fea63
7 changed files with 181 additions and 122 deletions
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128
src/Cafe/HW/Latte/Renderer/Metal/MetalSamplerCache.cpp Normal file
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#include "Cafe/HW/Latte/Renderer/Metal/MetalSamplerCache.h"
#include "Cafe/HW/Latte/Renderer/Metal/MetalRenderer.h"
#include "HW/Latte/Renderer/Metal/LatteToMtl.h"
MetalSamplerCache::~MetalSamplerCache()
{
for (auto& pair : m_samplerCache)
{
pair.second->release();
}
m_samplerCache.clear();
}
MTL::SamplerState* MetalSamplerCache::GetSamplerState(const LatteContextRegister& lcr, uint32 samplerIndex)
{
uint64 stateHash = CalculateSamplerHash(lcr, samplerIndex);
auto& samplerState = m_samplerCache[stateHash];
if (samplerState)
return samplerState;
// Sampler state
const _LatteRegisterSetSampler* samplerWords = lcr.SQ_TEX_SAMPLER + samplerIndex;
MTL::SamplerDescriptor* samplerDescriptor = MTL::SamplerDescriptor::alloc()->init();
// lod
uint32 iMinLOD = samplerWords->WORD1.get_MIN_LOD();
uint32 iMaxLOD = samplerWords->WORD1.get_MAX_LOD();
sint32 iLodBias = samplerWords->WORD1.get_LOD_BIAS();
// TODO: uncomment
// apply relative lod bias from graphic pack
//if (baseTexture->overwriteInfo.hasRelativeLodBias)
// iLodBias += baseTexture->overwriteInfo.relativeLodBias;
// apply absolute lod bias from graphic pack
//if (baseTexture->overwriteInfo.hasLodBias)
// iLodBias = baseTexture->overwriteInfo.lodBias;
auto filterMip = samplerWords->WORD0.get_MIP_FILTER();
if (filterMip == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_Z_FILTER::NONE)
{
samplerDescriptor->setMipFilter(MTL::SamplerMipFilterNearest);
samplerDescriptor->setLodMinClamp(0.0f);
samplerDescriptor->setLodMaxClamp(0.25f);
}
else if (filterMip == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_Z_FILTER::POINT)
{
samplerDescriptor->setMipFilter(MTL::SamplerMipFilterNearest);
samplerDescriptor->setLodMinClamp((float)iMinLOD / 64.0f);
samplerDescriptor->setLodMaxClamp((float)iMaxLOD / 64.0f);
}
else if (filterMip == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_Z_FILTER::LINEAR)
{
samplerDescriptor->setMipFilter(MTL::SamplerMipFilterLinear);
samplerDescriptor->setLodMinClamp((float)iMinLOD / 64.0f);
samplerDescriptor->setLodMaxClamp((float)iMaxLOD / 64.0f);
}
else
{
// fallback for invalid constants
samplerDescriptor->setMipFilter(MTL::SamplerMipFilterLinear);
samplerDescriptor->setLodMinClamp((float)iMinLOD / 64.0f);
samplerDescriptor->setLodMaxClamp((float)iMaxLOD / 64.0f);
}
auto filterMin = samplerWords->WORD0.get_XY_MIN_FILTER();
cemu_assert_debug(filterMin != Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_XY_FILTER::BICUBIC); // todo
samplerDescriptor->setMinFilter((filterMin == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_XY_FILTER::POINT || filterMin == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_XY_FILTER::ANISO_POINT) ? MTL::SamplerMinMagFilterNearest : MTL::SamplerMinMagFilterLinear);
auto filterMag = samplerWords->WORD0.get_XY_MAG_FILTER();
samplerDescriptor->setMagFilter((filterMag == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_XY_FILTER::POINT || filterMin == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_XY_FILTER::ANISO_POINT) ? MTL::SamplerMinMagFilterNearest : MTL::SamplerMinMagFilterLinear);
auto filterZ = samplerWords->WORD0.get_Z_FILTER();
// todo: z-filter for texture array samplers is customizable for GPU7 but OpenGL/Vulkan doesn't expose this functionality?
auto clampX = samplerWords->WORD0.get_CLAMP_X();
auto clampY = samplerWords->WORD0.get_CLAMP_Y();
auto clampZ = samplerWords->WORD0.get_CLAMP_Z();
samplerDescriptor->setSAddressMode(GetMtlSamplerAddressMode(clampX));
samplerDescriptor->setTAddressMode(GetMtlSamplerAddressMode(clampY));
samplerDescriptor->setRAddressMode(GetMtlSamplerAddressMode(clampZ));
auto maxAniso = samplerWords->WORD0.get_MAX_ANISO_RATIO();
// TODO: uncomment
//if (baseTexture->overwriteInfo.anisotropicLevel >= 0)
// maxAniso = baseTexture->overwriteInfo.anisotropicLevel;
if (maxAniso > 0)
samplerDescriptor->setMaxAnisotropy(1 << maxAniso);
// TODO: set lod bias
//samplerInfo.mipLodBias = (float)iLodBias / 64.0f;
// depth compare
//uint8 depthCompareMode = shader->textureUsesDepthCompare[relative_textureUnit] ? 1 : 0;
// TODO: is it okay to just cast?
samplerDescriptor->setCompareFunction(GetMtlCompareFunc((Latte::E_COMPAREFUNC)samplerWords->WORD0.get_DEPTH_COMPARE_FUNCTION()));
// border
auto borderType = samplerWords->WORD0.get_BORDER_COLOR_TYPE();
if (borderType == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_BORDER_COLOR_TYPE::TRANSPARENT_BLACK)
samplerDescriptor->setBorderColor(MTL::SamplerBorderColorTransparentBlack);
else if (borderType == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_BORDER_COLOR_TYPE::OPAQUE_BLACK)
samplerDescriptor->setBorderColor(MTL::SamplerBorderColorOpaqueBlack);
else if (borderType == Latte::LATTE_SQ_TEX_SAMPLER_WORD0_0::E_BORDER_COLOR_TYPE::OPAQUE_WHITE)
samplerDescriptor->setBorderColor(MTL::SamplerBorderColorOpaqueWhite);
else
{
// Metal doesn't support custom border color
samplerDescriptor->setBorderColor(MTL::SamplerBorderColorOpaqueBlack);
}
samplerState = m_mtlr->GetDevice()->newSamplerState(samplerDescriptor);
samplerDescriptor->release();
return samplerState;
}
uint64 MetalSamplerCache::CalculateSamplerHash(const LatteContextRegister& lcr, uint32 samplerIndex)
{
const _LatteRegisterSetSampler* samplerWords = lcr.SQ_TEX_SAMPLER + samplerIndex;
// TODO: check this
return *((uint64*)samplerWords);
}