[PATCH vkd3d v2 1/2] vkd3d: Return success for all valid D3D12 alignments.

[Conor McCarthy]

November 26, 2019 6:07 AM, "Henri Verbeet" <hverbeet at gmail.com> wrote:

> On Mon, 25 Nov 2019 at 10:30, Conor McCarthy <cmccarthy at codeweavers.com> wrote:
> 
>> + if (requested_alignment != D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT)
>> + goto invalid;
> 
> Should this be in d3d12_resource_validate_desc() instead? Likewise for images.
> 
>> + /* Validate the alignment in the resource description. Also allow the Vulkan alignment in case
>> the caller
>> + * specifies it in future calls.
> 
> Did you observe that happening, or is this speculative?
> 

Speculative, so I can remove it, which would enable complete validation to occur in d3d12_resource_validate_desc() instead. Dimensions of block compressed textures are currently not validated either, nor are some combinations of flags with other options.

>> + estimated_size = vkd3d_format_is_compressed(format)
>> + ? desc->Width * desc->Height * format->block_byte_count / (format->block_width *
>> format->block_height)
>> + : desc->Width * desc->Height * format->byte_count;
> 
> That's not how size calculations for block-based formats work. See
> e.g. vkd3d_format_copy_data(). It also seems this is a separate
> change.

How about this:
    estimated_size = (desc->Height / format->block_height) * (desc->Width / format->block_width)
            * format->byte_count * format->block_byte_count;

Conor