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// Copyright 2021 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "tests/unittests/validation/ValidationTest.h"
namespace {
class ExternalTextureTest : public ValidationTest {
public:
wgpu::TextureDescriptor CreateDefaultTextureDescriptor() {
wgpu::TextureDescriptor descriptor;
descriptor.size.width = kWidth;
descriptor.size.height = kHeight;
descriptor.size.depth = kDefaultDepth;
descriptor.mipLevelCount = kDefaultMipLevels;
descriptor.sampleCount = kDefaultSampleCount;
descriptor.dimension = wgpu::TextureDimension::e2D;
descriptor.format = kDefaultTextureFormat;
descriptor.usage = wgpu::TextureUsage::Sampled;
return descriptor;
}
protected:
static constexpr uint32_t kWidth = 32;
static constexpr uint32_t kHeight = 32;
static constexpr uint32_t kDefaultDepth = 1;
static constexpr uint32_t kDefaultMipLevels = 1;
static constexpr uint32_t kDefaultSampleCount = 1;
static constexpr wgpu::TextureFormat kDefaultTextureFormat =
wgpu::TextureFormat::RGBA8Unorm;
};
TEST_F(ExternalTextureTest, CreateExternalTextureValidation) {
wgpu::TextureDescriptor textureDescriptor = CreateDefaultTextureDescriptor();
wgpu::ExternalTextureDescriptor externalDesc;
externalDesc.format = kDefaultTextureFormat;
// Creating an external texture from a 2D, single-subresource texture should succeed.
{
wgpu::Texture texture = device.CreateTexture(&textureDescriptor);
externalDesc.plane0 = texture.CreateView();
device.CreateExternalTexture(&externalDesc);
}
// Creating an external texture with a mismatched texture view format should fail.
{
textureDescriptor.format = wgpu::TextureFormat::RGBA8Uint;
wgpu::Texture texture = device.CreateTexture(&textureDescriptor);
externalDesc.plane0 = texture.CreateView();
ASSERT_DEVICE_ERROR(device.CreateExternalTexture(&externalDesc));
}
// Creating an external texture from a non-2D texture should fail.
{
textureDescriptor.dimension = wgpu::TextureDimension::e3D;
wgpu::Texture internalTexture = device.CreateTexture(&textureDescriptor);
externalDesc.plane0 = internalTexture.CreateView();
ASSERT_DEVICE_ERROR(device.CreateExternalTexture(&externalDesc));
}
// Creating an external texture from a texture with mip count > 1 should fail.
{
textureDescriptor.mipLevelCount = 2;
wgpu::Texture internalTexture = device.CreateTexture(&textureDescriptor);
externalDesc.plane0 = internalTexture.CreateView();
ASSERT_DEVICE_ERROR(device.CreateExternalTexture(&externalDesc));
}
// Creating an external texture from a texture without TextureUsage::Sampled should fail.
{
textureDescriptor.mipLevelCount = 2;
wgpu::Texture internalTexture = device.CreateTexture(&textureDescriptor);
externalDesc.plane0 = internalTexture.CreateView();
ASSERT_DEVICE_ERROR(device.CreateExternalTexture(&externalDesc));
}
// Creating an external texture with an unsupported format should fail.
{
constexpr wgpu::TextureFormat kUnsupportedFormat = wgpu::TextureFormat::R8Uint;
textureDescriptor.format = kUnsupportedFormat;
wgpu::Texture internalTexture = device.CreateTexture(&textureDescriptor);
externalDesc.plane0 = internalTexture.CreateView();
externalDesc.format = kUnsupportedFormat;
ASSERT_DEVICE_ERROR(device.CreateExternalTexture(&externalDesc));
}
// Creating an external texture with an error texture view should fail.
{
wgpu::Texture internalTexture = device.CreateTexture(&textureDescriptor);
wgpu::TextureViewDescriptor errorViewDescriptor;
errorViewDescriptor.format = kDefaultTextureFormat;
errorViewDescriptor.dimension = wgpu::TextureViewDimension::e2D;
errorViewDescriptor.mipLevelCount = 1;
errorViewDescriptor.arrayLayerCount = 2;
ASSERT_DEVICE_ERROR(wgpu::TextureView errorTextureView =
internalTexture.CreateView(&errorViewDescriptor));
externalDesc.plane0 = errorTextureView;
externalDesc.format = kDefaultTextureFormat;
ASSERT_DEVICE_ERROR(device.CreateExternalTexture(&externalDesc));
}
}
} // namespace