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[Fix] (MG_Backend/DirectVulkan): properly compute hash for samplers

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swung0x48
2026-02-22 12:51:00 +08:00
parent 733523011b
commit 359ba1c572
3 changed files with 42 additions and 9 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/VkTextureSamplerManager.cpp
+34 -8
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@@ -11,12 +11,6 @@
#include "MG_State/GLState/Core.h"
namespace MobileGL::MG_Backend::DirectVulkan {
namespace {
constexpr Uint64 BuildSamplerKey(Uint externalIndex, Uint16 version) {
return (static_cast<Uint64>(externalIndex) << 16) | static_cast<Uint64>(version);
}
} // namespace
Bool VkTextureSamplerManager::Initialize(const InitInfo& initInfo) {
Shutdown();
@@ -24,9 +18,11 @@ namespace MobileGL::MG_Backend::DirectVulkan {
m_physicalDevice = initInfo.physicalDevice;
m_commandPool = initInfo.commandPool;
m_graphicsQueue = initInfo.graphicsQueue;
m_config = initInfo.config;
MOBILEGL_ASSERT(m_device != VK_NULL_HANDLE && m_physicalDevice != VK_NULL_HANDLE && m_commandPool != VK_NULL_HANDLE &&
m_graphicsQueue != VK_NULL_HANDLE, "VkTextureSamplerManager::Initialize failed: invalid Vulkan handles");
m_graphicsQueue != VK_NULL_HANDLE && m_config != nullptr,
"VkTextureSamplerManager::Initialize failed: invalid initialization info");
return true;
}
@@ -49,6 +45,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
m_physicalDevice = VK_NULL_HANDLE;
m_commandPool = VK_NULL_HANDLE;
m_graphicsQueue = VK_NULL_HANDLE;
m_config = nullptr;
}
Bool VkTextureSamplerManager::SyncTextureAndGetDescriptor(const MG_State::GLState::ITextureObject& texture,
@@ -375,8 +372,37 @@ namespace MobileGL::MG_Backend::DirectVulkan {
return 0;
}
Uint64 VkTextureSamplerManager::BuildSamplerKey(const MG_State::GLState::SamplerObject& sampler) const {
MOBILEGL_ASSERT(m_config != nullptr, "VkTextureSamplerManager::BuildSamplerKey: m_config is null");
XXHASH_VERIFY(XXH64_reset(m_hashState, m_config->CacheVersion));
const auto minFilter = sampler.GetMinFilter();
XXHASH_VERIFY(XXH64_update(m_hashState, &minFilter, sizeof(minFilter)));
const auto magFilter = sampler.GetMagFilter();
XXHASH_VERIFY(XXH64_update(m_hashState, &magFilter, sizeof(magFilter)));
const auto mipmapMode = sampler.GetMipmapMode();
XXHASH_VERIFY(XXH64_update(m_hashState, &mipmapMode, sizeof(mipmapMode)));
const auto wrapS = sampler.GetWrapS();
XXHASH_VERIFY(XXH64_update(m_hashState, &wrapS, sizeof(wrapS)));
const auto wrapT = sampler.GetWrapT();
XXHASH_VERIFY(XXH64_update(m_hashState, &wrapT, sizeof(wrapT)));
const auto wrapR = sampler.GetWrapR();
XXHASH_VERIFY(XXH64_update(m_hashState, &wrapR, sizeof(wrapR)));
const auto minLod = sampler.GetMinLod();
XXHASH_VERIFY(XXH64_update(m_hashState, &minLod, sizeof(minLod)));
const auto maxLod = sampler.GetMaxLod();
XXHASH_VERIFY(XXH64_update(m_hashState, &maxLod, sizeof(maxLod)));
const auto lodBias = sampler.GetLodBias();
XXHASH_VERIFY(XXH64_update(m_hashState, &lodBias, sizeof(lodBias)));
const auto compareMode = sampler.GetCompareMode();
XXHASH_VERIFY(XXH64_update(m_hashState, &compareMode, sizeof(compareMode)));
const auto compareFunc = sampler.GetSamplerCompareFunc();
XXHASH_VERIFY(XXH64_update(m_hashState, &compareFunc, sizeof(compareFunc)));
return XXH64_digest(m_hashState);
}
VkSampler VkTextureSamplerManager::GetOrCreateSampler(const MG_State::GLState::SamplerObject& sampler) {
const Uint64 key = BuildSamplerKey(sampler.GetExternalIndex(), sampler.GetVersion());
const Uint64 key = BuildSamplerKey(sampler);
auto it = m_samplers.find(key);
if (it != m_samplers.end()) {
return it->second.handle;