Add depth/stencilReadOnly and validations in RenderBundleEncoderDescriptor
This change adds two arguments depthReadOnly and stencilReadOnly
into RenderBundleEncoderDescriptor in order to follow WebGPU spec.
It also adds one more validation rule: depthReadOnly must be equal
to stencilReadOnly if depthStencilFormat has both depth and stencil
aspects in RenderBundleEncoderDescriptor. We have already had a
similar validation rule in RenderPassDepthStencilAttachment in
RenderPassDescriptor.
Bug: dawn:485
Change-Id: I32c45b2bd90c7041aa881d8589720a9146d6ac7e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/66501
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
diff --git a/dawn.json b/dawn.json
index 9940077..ada8ff6 100644
--- a/dawn.json
+++ b/dawn.json
@@ -1573,7 +1573,9 @@
{"name": "color formats count", "type": "uint32_t"},
{"name": "color formats", "type": "texture format", "annotation": "const*", "length": "color formats count"},
{"name": "depth stencil format", "type": "texture format", "default": "undefined"},
- {"name": "sample count", "type": "uint32_t", "default": "1"}
+ {"name": "sample count", "type": "uint32_t", "default": "1"},
+ {"name": "depth read only", "type": "bool", "default": "false"},
+ {"name": "stencil read only", "type": "bool", "default": "false"}
]
},
diff --git a/src/dawn_native/RenderBundleEncoder.cpp b/src/dawn_native/RenderBundleEncoder.cpp
index 568f941..cd12323 100644
--- a/src/dawn_native/RenderBundleEncoder.cpp
+++ b/src/dawn_native/RenderBundleEncoder.cpp
@@ -37,12 +37,21 @@
}
MaybeError ValidateDepthStencilAttachmentFormat(const DeviceBase* device,
- wgpu::TextureFormat textureFormat) {
+ wgpu::TextureFormat textureFormat,
+ bool depthReadOnly,
+ bool stencilReadOnly) {
DAWN_TRY(ValidateTextureFormat(textureFormat));
const Format* format = nullptr;
DAWN_TRY_ASSIGN(format, device->GetInternalFormat(textureFormat));
DAWN_INVALID_IF(!format->HasDepthOrStencil() || !format->isRenderable,
"Texture format %s is not depth/stencil renderable.", textureFormat);
+
+ DAWN_INVALID_IF(
+ format->HasDepth() && format->HasStencil() && depthReadOnly != stencilReadOnly,
+ "depthReadOnly (%u) and stencilReadOnly (%u) must be the same when format %s has "
+ "both depth and stencil aspects.",
+ depthReadOnly, stencilReadOnly, textureFormat);
+
return {};
}
@@ -67,9 +76,10 @@
}
if (descriptor->depthStencilFormat != wgpu::TextureFormat::Undefined) {
- DAWN_TRY_CONTEXT(
- ValidateDepthStencilAttachmentFormat(device, descriptor->depthStencilFormat),
- "validating depthStencilFormat");
+ DAWN_TRY_CONTEXT(ValidateDepthStencilAttachmentFormat(
+ device, descriptor->depthStencilFormat, descriptor->depthReadOnly,
+ descriptor->stencilReadOnly),
+ "validating depthStencilFormat");
}
return {};
diff --git a/src/tests/unittests/validation/RenderBundleValidationTests.cpp b/src/tests/unittests/validation/RenderBundleValidationTests.cpp
index d5e3fa8..50c452e 100644
--- a/src/tests/unittests/validation/RenderBundleValidationTests.cpp
+++ b/src/tests/unittests/validation/RenderBundleValidationTests.cpp
@@ -626,6 +626,27 @@
ASSERT_DEVICE_ERROR(device.CreateRenderBundleEncoder(&desc));
}
+// Test that depthReadOnly must be equal to stencilReadOnly if depth stencil format contain
+// both depth and stencil formats.
+TEST_F(RenderBundleValidationTest, DepthStencilReadOnly) {
+ for (wgpu::TextureFormat format :
+ {wgpu::TextureFormat::Depth24PlusStencil8, wgpu::TextureFormat::Depth32Float}) {
+ for (bool depthReadOnly : {true, false}) {
+ for (bool stencilReadOnly : {true, false}) {
+ utils::ComboRenderBundleEncoderDescriptor desc = {};
+ desc.depthStencilFormat = format;
+ desc.depthReadOnly = depthReadOnly;
+ desc.stencilReadOnly = stencilReadOnly;
+ if (format == wgpu::TextureFormat::Depth24PlusStencil8 &&
+ depthReadOnly != stencilReadOnly) {
+ ASSERT_DEVICE_ERROR(device.CreateRenderBundleEncoder(&desc));
+ } else {
+ device.CreateRenderBundleEncoder(&desc);
+ }
+ }
+ }
+ }
+}
// Test that resource usages are validated inside render bundles.
TEST_F(RenderBundleValidationTest, UsageTracking) {
DummyRenderPass renderPass(device);