Support VK_KHR_timeline_semaphore and VK_EXT_descriptor_indexing extensions

[mxpv]

The Vulkan 1.1.124 spec introduces a very nice extension - VK_KHR_timeline_semaphore (pdf, issue, commit). It would be great to support it in MoltenVK.

[oscarbg]

+1!!
recent VKD3D builds need it.. see details:
#214 (comment)

[billhollings]

@oscarbg Thanks for identifying the uptick in priority.

[K0bin]

FYI vkd3d-proton also needs descriptor indexing.

[billhollings]

FYI vkd3d-proton also needs descriptor indexing.

Thanks. Development on VK_EXT_descriptor_indexing is underway already, and should be released in next couple of weeks.

[cdavis5e]

#1124 adds support for VK_KHR_timeline_semaphore.

[oscarbg]

Hi,
just putting all needed VK_EXT_descriptor_indexing features by VKD3D, if not fails with:
"Insufficient descriptor indexing support"
I have seen this on Intel Windows driver as it doesn't currently support VKD3D.. hope Metal allows exposing all features needed by VKD3D even on Intel GPUs..

features can be seen in vkd3d_bindless_state_init:
checks all VKD3D_BINDLESS_SRV | VKD3D_BINDLESS_UAV | VKD3D_BINDLESS_CBV | VKD3D_BINDLESS_SAMPLER flags set by
vkd3d_bindless_state_get_bindless_flags function which depend on descriptor indexing features as:

 if (!vk_info->EXT_descriptor_indexing ||
            !device_info->descriptor_indexing_features.runtimeDescriptorArray ||
            !device_info->descriptor_indexing_features.descriptorBindingPartiallyBound ||
            !device_info->descriptor_indexing_features.descriptorBindingUpdateUnusedWhilePending ||
            !device_info->descriptor_indexing_features.descriptorBindingVariableDescriptorCount)
        return 0;

    if (device_info->descriptor_indexing_properties.maxPerStageDescriptorUpdateAfterBindSampledImages >= 1000000 &&
            device_info->descriptor_indexing_features.descriptorBindingSampledImageUpdateAfterBind &&
            device_info->descriptor_indexing_features.descriptorBindingUniformTexelBufferUpdateAfterBind &&
            device_info->descriptor_indexing_features.shaderSampledImageArrayNonUniformIndexing &&
            device_info->descriptor_indexing_features.shaderUniformTexelBufferArrayNonUniformIndexing)
        flags |= VKD3D_BINDLESS_SAMPLER | VKD3D_BINDLESS_SRV;

    if (device_info->descriptor_indexing_properties.maxPerStageDescriptorUpdateAfterBindStorageImages >= 1000000 &&
            device_info->descriptor_indexing_features.descriptorBindingStorageImageUpdateAfterBind &&
            device_info->descriptor_indexing_features.descriptorBindingStorageTexelBufferUpdateAfterBind &&
            device_info->descriptor_indexing_features.shaderStorageImageArrayNonUniformIndexing &&
            device_info->descriptor_indexing_features.shaderStorageTexelBufferArrayNonUniformIndexing)
        flags |= VKD3D_BINDLESS_UAV;

    if (device_info->descriptor_indexing_properties.maxPerStageDescriptorUpdateAfterBindUniformBuffers >= 1000000 &&
            device_info->descriptor_indexing_features.descriptorBindingUniformBufferUpdateAfterBind &&
            device_info->descriptor_indexing_features.shaderUniformBufferArrayNonUniformIndexing)
        flags |= VKD3D_BINDLESS_CBV;
    else if (device_info->descriptor_indexing_properties.maxPerStageDescriptorUpdateAfterBindStorageBuffers >= 1000000 &&
            device_info->descriptor_indexing_features.descriptorBindingStorageBufferUpdateAfterBind &&
            device_info->descriptor_indexing_features.shaderStorageBufferArrayNonUniformIndexing)
        flags |= VKD3D_BINDLESS_CBV | VKD3D_BINDLESS_CBV_AS_SSBO;