Use calloc for ALLOCATE (the memory is set to zero)

[caramelli]

This can avoid a Segmentation fault when calling FREE, for example in vkDestroyDescriptorPool() if bufferDescriptorCPA has not been yet allocated.

Nicolas Caramelli

[Yours3lf]

sounds like a good debug option, I like it. I'd not merge it for release though

[caramelli]

As you prefer, but this change is required for the triangle test to work on my system. Otherwise the triangle test can also be modified like proposed in #30

Nicolas Caramelli

[Yours3lf]

do you mean there's an issue if you don't zero out memory? sounds like you found a bug

[caramelli]

Yes exactly, this is what I see in vkDestroyDescriptorPool() if bufferDescriptorCPA.buf has not yet been initialized to zero with the ALLOCATE in vkCreateDescriptorPool().
In the triangle test, a descriptor pool for VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER and VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER is created, so imageDescriptorCPA.buf and texelBufferDescriptorCPA.buf are valid. But this is not the case for bufferDescriptorCPA.buf.

Nicolas Caramelli