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vkd3d: Disable push descriptors when that's helpful to stay within 8 descriptor sets.

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This commit is contained in:
Giovanni Mascellani
2024-10-17 22:58:54 +02:00
committed by Henri Verbeet
parent 3bf114f3c3
commit ae772d40cf
Notes: Henri Verbeet 2024-10-21 18:42:52 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1202
2 changed files with 20 additions and 4 deletions
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20
libs/vkd3d/device.c
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@@ -1918,6 +1918,26 @@ static HRESULT vkd3d_init_device_caps(struct d3d12_device *device,
&& descriptor_indexing->descriptorBindingUniformTexelBufferUpdateAfterBind
&& descriptor_indexing->descriptorBindingStorageTexelBufferUpdateAfterBind;
/* Many Vulkan implementations allow up to 8 descriptor sets. Unfortunately
* using vkd3d with Vulkan heaps and push descriptors currently requires up
* to 9 descriptor sets (up to one for the push descriptors, up to one for
* the static samplers and seven for Vulkan heaps, one for each needed
* descriptor type). If we detect such situation, we disable push
* descriptors, which allows us to stay within the limits (not doing so is
* fatal on many implmentations).
*
* It is possible that a different strategy might be used. For example, we
* could move the static samplers to one of the seven Vulkan heaps sets. Or
* we could decide whether to create the push descriptor set when creating
* the root signature, depending on whether there are static samplers or
* not. */
if (device->vk_info.device_limits.maxBoundDescriptorSets == 8 && device->use_vk_heaps
&& device->vk_info.KHR_push_descriptor)
{
TRACE("Disabling VK_KHR_push_descriptor to save a descriptor set.\n");
device->vk_info.KHR_push_descriptor = VK_FALSE;
}
if (device->use_vk_heaps)
vkd3d_device_vk_heaps_descriptor_limits_init(&vulkan_info->descriptor_limits,
&physical_device_info->descriptor_indexing_properties);