Divide by zero in compressed image subdata

[publicrepo]

There can be a divide by zero on this line when numBlocksX is zero, which occurs for small / mip textures.

VkResult Device::CompressedImageSubData(Image* pImage, const VezImageSubDataInfo* pSubDataInfo, const void* pData)
    auto maxTransferBlocksY = std::min(numBlocksY, static_cast<uint32_t>(pinnedMemoryBufferSize / (blockSize * numBlocksX)));

This can be trivially fixed by checking for zero before divide. The code otherwise appears correct as it rounds up zero block counts to one for those tiny sizes.

[manhnt9]

Hi, could you contribute to this repo? V-EZ github is unmaintained for now.

[publicrepo]

@manhnt9 Maybe. I'm just playing around with VEZ and reporting some issues I found here. I notice a few other forks of this repo have recent development and maintenance effort. I don't have a repo to share, just some code I'm playing with.