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Reland "Implement readonly storage buffer - validation at API side"

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This is a reland of 34ac535f02

Original change's description:
> Implement readonly storage buffer - validation at API side
> 
> This patch adds validation code for API side for readonly storage
> buffer. It also adds unit tests for API validation.
> 
> BUG=dawn:180
> 
> Change-Id: I9a97c5f3aa23e720619d138ca55d7b17f08d64c9
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12620
> Reviewed-by: Austin Eng <enga@chromium.org>
> Commit-Queue: Yunchao He <yunchao.he@intel.com>

Bug: dawn:180
Change-Id: I1e107ff6168279940496317b973f2d8c7c3c6114
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13083
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This commit is contained in:
Yunchao He
2019-11-07 07:09:07 +00:00
committed by Commit Bot service account
parent f8045a095c
commit 64cfaeac4c
7 changed files with 135 additions and 8 deletions
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49
src/tests/unittests/validation/CommandBufferValidationTests.cpp
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@@ -223,6 +223,55 @@ TEST_F(CommandBufferValidationTest, BufferWithReadAndWriteUsage) {
ASSERT_DEVICE_ERROR(encoder.Finish());
}
// Test that using a single buffer in multiple read usages which include readonly storage usage in
// the same pass is allowed.
TEST_F(CommandBufferValidationTest, BufferWithMultipleReadAndReadOnlyStorageUsage) {
// Create a buffer that will be used as an index buffer and as a storage buffer
wgpu::BufferDescriptor bufferDescriptor;
bufferDescriptor.usage = wgpu::BufferUsage::Storage | wgpu::BufferUsage::Index;
bufferDescriptor.size = 4;
wgpu::Buffer buffer = device.CreateBuffer(&bufferDescriptor);
// Create the bind group to use the buffer as storage
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::ReadonlyStorageBuffer}});
wgpu::BindGroup bg = utils::MakeBindGroup(device, bgl, {{0, buffer, 0, 4}});
// Use the buffer as both index and storage in the same pass
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
DummyRenderPass dummyRenderPass(device);
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&dummyRenderPass);
pass.SetIndexBuffer(buffer);
pass.SetBindGroup(0, bg);
pass.EndPass();
encoder.Finish();
}
// Test that using the same storage buffer as both readable and writable in the same pass is
// disallowed
TEST_F(CommandBufferValidationTest, BufferWithReadAndWriteStorageBufferUsage) {
// Create a buffer that will be used as an storage buffer and as a readonly storage buffer
wgpu::BufferDescriptor bufferDescriptor;
bufferDescriptor.usage = wgpu::BufferUsage::Storage;
bufferDescriptor.size = 512;
wgpu::Buffer buffer = device.CreateBuffer(&bufferDescriptor);
// Create the bind group to use the buffer as storage
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::StorageBuffer},
{1, wgpu::ShaderStage::Vertex, wgpu::BindingType::ReadonlyStorageBuffer}});
wgpu::BindGroup bg =
utils::MakeBindGroup(device, bgl, {{0, buffer, 0, 4}, {1, buffer, 256, 4}});
// Use the buffer as both index and storage in the same pass
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
DummyRenderPass dummyRenderPass(device);
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&dummyRenderPass);
pass.SetBindGroup(0, bg);
pass.EndPass();
ASSERT_DEVICE_ERROR(encoder.Finish());
}
// Test that using the same texture as both readable and writable in the same pass is disallowed
TEST_F(CommandBufferValidationTest, TextureWithReadAndWriteUsage) {
// Create a texture that will be used both as a sampled texture and a render target