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Don't over-allocate memory for higher mip levels of 3D textures

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This commit is contained in:
Marko Pintera 2020-07-23 15:06:49 +02:00
parent f13fb48905
commit 6da2fbb353
1 changed files with 6 additions and 2 deletions
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8
MoltenVK/MoltenVK/GPUObjects/MVKImage.mm
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@ -147,12 +147,15 @@ void MVKImagePlane::initSubresources(const VkImageCreateInfo* pCreateInfo) {
VkDeviceSize rowPitch = _image->getBytesPerRow(_planeIndex, mipLvl);
VkDeviceSize depthPitch = _image->getBytesPerLayer(_planeIndex, mipLvl);
VkExtent3D mipExtent = _image->getExtent3D(_planeIndex, mipLvl);
for (uint32_t layer = 0; layer < _image->_arrayLayers; layer++) {
subRez.subresource.arrayLayer = layer;
VkSubresourceLayout& layout = subRez.layout;
layout.offset = offset;
layout.size = depthPitch * _image->_extent.depth;
layout.size = depthPitch * mipExtent.depth;
layout.rowPitch = rowPitch;
layout.depthPitch = depthPitch;
@ -828,7 +831,8 @@ MVKImage::MVKImage(MVKDevice* device, const VkImageCreateInfo* pCreateInfo) : MV
_isAliasable = mvkIsAnyFlagEnabled(pCreateInfo->flags, VK_IMAGE_CREATE_ALIAS_BIT);
} else {
for (uint32_t mipLvl = 0; mipLvl < _mipLevels; mipLvl++) {
memoryBinding->_byteCount += getBytesPerLayer(planeIndex, mipLvl) * _extent.depth * _arrayLayers;
VkExtent3D mipExtent = getExtent3D(planeIndex, mipLvl);
memoryBinding->_byteCount += getBytesPerLayer(planeIndex, mipLvl) * mipExtent.depth * _arrayLayers;
}
memoryBinding->_byteAlignment = std::max(memoryBinding->_byteAlignment, _rowByteAlignment);
}