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speed up framebuffer fetch lookup

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Samuliak 2025-01-19 10:25:28 +01:00
parent 9e94451093
commit db8c7de236
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2 changed files with 37 additions and 18 deletions
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54
src/Cafe/HW/Latte/LegacyShaderDecompiler/LatteDecompilerAnalyzer.cpp
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@ -8,6 +8,8 @@
#include "Cafe/HW/Latte/Core/FetchShader.h"
#include "Cafe/HW/Latte/Core/LatteShader.h"
#include "Cafe/HW/Latte/Renderer/Renderer.h"
#include "Common/MemPtr.h"
#include "HW/Latte/ISA/LatteReg.h"
// Defined in LatteTextureLegacy.cpp
Latte::E_GX2SURFFMT LatteTexture_ReconstructGX2Format(const Latte::LATTE_SQ_TEX_RESOURCE_WORD1_N& texUnitWord1, const Latte::LATTE_SQ_TEX_RESOURCE_WORD4_N& texUnitWord4);
@ -859,7 +861,36 @@ void LatteDecompiler_analyze(LatteDecompilerShaderContext* shaderContext, LatteD
// check if textures are used as render targets
if (shader->shaderType == LatteConst::ShaderType::Pixel)
{
uint8 colorBufferMask = LatteMRT::GetActiveColorBufferMask(shader, *shaderContext->contextRegistersNew);
struct {
sint32 index;
MPTR physAddr;
Latte::E_GX2SURFFMT format;
} colorBuffers[LATTE_NUM_COLOR_TARGET]{};
uint8 colorBufferMask = LatteMRT::GetActiveColorBufferMask(shader, *shaderContext->contextRegistersNew);
sint32 colorBufferCount = 0;
for (sint32 i = 0; i < LATTE_NUM_COLOR_TARGET; i++)
{
auto& colorBuffer = colorBuffers[colorBufferCount];
if (((colorBufferMask) & (1 << i)) == 0)
continue; // color buffer not enabled
uint32* colorBufferRegBase = shaderContext->contextRegisters + (mmCB_COLOR0_BASE + i);
uint32 regColorBufferBase = colorBufferRegBase[mmCB_COLOR0_BASE - mmCB_COLOR0_BASE] & 0xFFFFFF00; // the low 8 bits are ignored? How to Survive seems to rely on this
uint32 regColorInfo = colorBufferRegBase[mmCB_COLOR0_INFO - mmCB_COLOR0_BASE];
MPTR colorBufferPhysMem = regColorBufferBase;
Latte::E_HWTILEMODE colorBufferTileMode = (Latte::E_HWTILEMODE)((regColorInfo >> 8) & 0xF);
if (Latte::TM_IsMacroTiled(colorBufferTileMode))
colorBufferPhysMem &= ~0x700;
Latte::E_GX2SURFFMT colorBufferFormat = LatteMRT::GetColorBufferFormat(i, *shaderContext->contextRegistersNew);
colorBuffer = {i, colorBufferPhysMem, colorBufferFormat};
colorBufferCount++;
}
for (sint32 i = 0; i < shader->textureUnitListCount; i++)
{
sint32 textureIndex = shader->textureUnitList[i];
@ -892,27 +923,14 @@ void LatteDecompiler_analyze(LatteDecompilerShaderContext* shaderContext, LatteD
Latte::E_GX2SURFFMT format = LatteTexture_ReconstructGX2Format(texRegister.word1, texRegister.word4);
// Check if the texture is used as render target
for (sint32 j = 0; j < LATTE_NUM_COLOR_TARGET; j++)
for (sint32 j = 0; j < colorBufferCount; j++)
{
if (((colorBufferMask) & (1 << j)) == 0)
continue; // color buffer not enabled
uint32* colorBufferRegBase = shaderContext->contextRegisters + (mmCB_COLOR0_BASE + j);
uint32 regColorBufferBase = colorBufferRegBase[mmCB_COLOR0_BASE - mmCB_COLOR0_BASE] & 0xFFFFFF00; // the low 8 bits are ignored? How to Survive seems to rely on this
uint32 regColorInfo = colorBufferRegBase[mmCB_COLOR0_INFO - mmCB_COLOR0_BASE];
MPTR colorBufferPhysMem = regColorBufferBase;
Latte::E_HWTILEMODE colorBufferTileMode = (Latte::E_HWTILEMODE)((regColorInfo >> 8) & 0xF);
if (Latte::TM_IsMacroTiled(colorBufferTileMode))
colorBufferPhysMem &= ~0x700;
Latte::E_GX2SURFFMT colorBufferFormat = LatteMRT::GetColorBufferFormat(j, *shaderContext->contextRegistersNew);
const auto& colorBuffer = colorBuffers[j];
// TODO: check if mip matches as well?
if (physAddr == colorBufferPhysMem && format == colorBufferFormat)
if (physAddr == colorBuffer.physAddr && format == colorBuffer.format)
{
shader->textureRenderTargetIndex[textureIndex] = j;
shader->textureRenderTargetIndex[textureIndex] = colorBuffer.index;
break;
}
}