This change add a couple end2end tests when readonly depth/stencil
attahcment is enabled in render pass and the pipeline doesn't
sample from the depth/stencil attachment. The pipeline only do
depth/stencil test.
This situation may not be useful in real world applications. But
it is possible that developers do it in this way. And it impacts
the implementation on some backend like Vulkan.
Bug: dawn:485
Change-Id: I8a81330659295cd4a2f00591b6ead719538babd9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71441
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
It requires to revise quite a few flags in order to implement
readonly depth/stencil attachment on Vulkan. For example:
- VkAccessFlags,
- VkPipelineStageFlags,
- VkImageUsageFlags,
- and the most important: VkImageLayout.
These revised flags need to be applied to many Vulkan objects.
For examples:
- VkImageMemoryBarriers,
- IMAGE_LAYOUT revisions in descriptor set (bindings),
render pass, and subpass,
- and loadOp/storeOp revisions in render pass and subpass.
This change also does some workarounds in order to make Vulkan
validation layers happy. For example:
- use DEPTH_STENCIL_READ_ONLY image layout for binding a
depth/stencil texture,
- add DEPTH_STENCIL_ATTACHMENT_BIT image usage for binding a
depth/stencil texture.
Note that STORE_OP_STORE is used for depth/stencil's storeOp for
readonly attachment. It leads to Vulkan validation error. This
change igores that error and let it proceeds and it works well.
Bug: dawn:485
Change-Id: Ie247c9cbffbd837984b0933a905632ab5ad8862d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/70280
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
The depth240unorm-stencil8 and depth32float-stencil8 are optional
features. Enable them and add validation tests for texture creation
and texture view creation.
They are unimplmented on backends, skip their end2end tests.
TODO: add validtion for copy commands.
BUG=dawn:690
Change-Id: I980631d2f3fa6397a6125221a76980a15c8cb2f5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/68220
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Hao Li <hao.x.li@intel.com>
The new test can pass without further implementation changes on
D3D12 because:
- stencil aspect shares the same resource state with depth:
D3D12_RESOURCE_STATE_DEPTH_READ.
- stencil flag (D3D12_DSV_FLAG_READ_ONLY_STENCIL) for readonly
DepthStencilView descriptor has already been added into Dawn
in previous patch.
Bug: dawn:485
Change-Id: I87aaaac0f01744d3533f2d97f987ee23ad0a1f53
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/69300
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
This change adds a end2end test for readonly depth/stencil
attachment and implements it on D3D12.
This change focuses on depth. If it is OK, I will add test(s) for
stencil.
The key points are:
- Set DEPTH_READ transition barrier to replace DEPTH_WRITE barrier
if it is readonly depth/stencil attachment.
- Set appropriate D3D12_DEPTH_STENCIL_DESC (which is already correct)
and D3D12_DEPTH_STENCIL_VIEW_DESC (which needs some particular
flags). Otherwise, the underlying driver (validation layer) may
think we still need DEPTH_WRITE transition barrier.
Bug: dawn:485
Change-Id: I64d30426ed8042a98b3fef084bb90b125320a6f8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/67742
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
