src/tests/end2end/NonzeroTextureCreationTests.cpp - dawn - Git at Google

 // Copyright 2019 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/DawnTest.h"

 #include "common/Constants.h"
 #include "utils/ComboRenderPipelineDescriptor.h"
 #include "utils/WGPUHelpers.h"

 class NonzeroTextureCreationTests : public DawnTest {
   protected:
     constexpr static uint32_t kSize = 128;
     constexpr static uint32_t kDepthOrArrayLayers = 7;
 };

 // Test that texture clears 0xFF because toggle is enabled.
 TEST_P(NonzeroTextureCreationTests, TextureCreationClears) {
     wgpu::TextureDescriptor descriptor;
     descriptor.dimension = wgpu::TextureDimension::e2D;
     descriptor.size.width = kSize;
     descriptor.size.height = kSize;
     descriptor.size.depthOrArrayLayers = 1;
     descriptor.sampleCount = 1;
     descriptor.format = wgpu::TextureFormat::RGBA8Unorm;
     descriptor.mipLevelCount = 1;
     descriptor.usage = wgpu::TextureUsage::RenderAttachment | wgpu::TextureUsage::CopySrc;

     // 2D
     {
         wgpu::Texture texture = device.CreateTexture(&descriptor);

         std::vector<RGBA8> expected(kSize * kSize, RGBA8(255, 255, 255, 255));
         EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0}, {kSize, kSize});
     }

     // 2D Array
     {
         descriptor.dimension = wgpu::TextureDimension::e2D;
         descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
         wgpu::Texture texture = device.CreateTexture(&descriptor);

         std::vector<RGBA8> expected(kSize * kSize * kDepthOrArrayLayers, RGBA8(255, 255, 255, 255));
         EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {kSize, kSize, kDepthOrArrayLayers});
     }
 }

 // Test that 3D texture clears to nonzero because toggle is enabled.
 TEST_P(NonzeroTextureCreationTests, Texture3DCreationClears) {
     // TODO(crbug.com/dawn/547): 3D texture copies not fully implemented on D3D12.
     // TODO(crbug.com/angleproject/5967): This texture readback hits an assert in ANGLE.
     DAWN_TEST_UNSUPPORTED_IF(IsD3D12());
     DAWN_SUPPRESS_TEST_IF(IsANGLE());

     wgpu::TextureDescriptor descriptor;
     descriptor.dimension = wgpu::TextureDimension::e3D;
     descriptor.size.width = kSize;
     descriptor.size.height = kSize;
     descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
     descriptor.sampleCount = 1;
     descriptor.format = wgpu::TextureFormat::RGBA8Unorm;
     descriptor.mipLevelCount = 1;
     descriptor.usage = wgpu::TextureUsage::RenderAttachment | wgpu::TextureUsage::CopySrc;
     wgpu::Texture texture = device.CreateTexture(&descriptor);

     std::vector<RGBA8> expected(kSize * kSize * kDepthOrArrayLayers, RGBA8(255, 255, 255, 255));
     EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {kSize, kSize, kDepthOrArrayLayers});
 }

 // Test that a depth texture clears 0xFF because toggle is enabled.
 TEST_P(NonzeroTextureCreationTests, Depth32TextureCreationDepthClears) {
     // Copies from depth textures not fully supported on the OpenGL backend right now.
     DAWN_TEST_UNSUPPORTED_IF(IsOpenGL() || IsOpenGLES());

     wgpu::TextureDescriptor descriptor;
     descriptor.dimension = wgpu::TextureDimension::e2D;
     descriptor.size.width = kSize;
     descriptor.size.height = kSize;
     descriptor.size.depthOrArrayLayers = 1;
     descriptor.sampleCount = 1;
     descriptor.mipLevelCount = 1;
     descriptor.usage = wgpu::TextureUsage::RenderAttachment | wgpu::TextureUsage::CopySrc;
     descriptor.format = wgpu::TextureFormat::Depth32Float;

     // We can only really test Depth32Float here because Depth24Plus(Stencil8)? may be in an unknown
     // format.
     // TODO(crbug.com/dawn/145): Test other formats via sampling.

     // 2D
     {
         wgpu::Texture texture = device.CreateTexture(&descriptor);
         std::vector<float> expected(kSize * kSize, 1.f);
         EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0}, {kSize, kSize});
     }

     // 2D Array
     {
         descriptor.dimension = wgpu::TextureDimension::e2D;
         descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
         wgpu::Texture texture = device.CreateTexture(&descriptor);
         std::vector<float> expected(kSize * kSize * kDepthOrArrayLayers, 1.f);
         EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {kSize, kSize, kDepthOrArrayLayers});
     }
 }

 // Test that non-zero mip level clears 0xFF because toggle is enabled.
 TEST_P(NonzeroTextureCreationTests, MipMapClears) {
     constexpr uint32_t mipLevels = 4;

     wgpu::TextureDescriptor descriptor;
     descriptor.dimension = wgpu::TextureDimension::e2D;
     descriptor.size.width = kSize;
     descriptor.size.height = kSize;
     descriptor.size.depthOrArrayLayers = 1;
     descriptor.sampleCount = 1;
     descriptor.format = wgpu::TextureFormat::RGBA8Unorm;
     descriptor.mipLevelCount = mipLevels;
     descriptor.usage = wgpu::TextureUsage::RenderAttachment | wgpu::TextureUsage::CopySrc;

     // 2D
     {
         wgpu::Texture texture = device.CreateTexture(&descriptor);
         uint32_t mipSize = kSize >> 2;
         std::vector<RGBA8> expected(mipSize * mipSize, RGBA8(255, 255, 255, 255));
         EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0}, {mipSize, mipSize}, 2);
     }

     // 2D Array
     {
         descriptor.dimension = wgpu::TextureDimension::e2D;
         descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
         wgpu::Texture texture = device.CreateTexture(&descriptor);
         uint32_t mipSize = kSize >> 2;
         std::vector<RGBA8> expected(mipSize * mipSize * kDepthOrArrayLayers,
                                     RGBA8(255, 255, 255, 255));
         EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0},
                           {mipSize, mipSize, kDepthOrArrayLayers}, 2);
     }

     // 3D
     {
         descriptor.dimension = wgpu::TextureDimension::e3D;
         descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
         wgpu::Texture texture = device.CreateTexture(&descriptor);
         uint32_t mipSize = kSize >> 2;
         uint32_t mipDepth = kDepthOrArrayLayers >> 2;
         std::vector<RGBA8> expected(mipSize * mipSize * mipDepth, RGBA8(255, 255, 255, 255));
         EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {mipSize, mipSize, mipDepth}, 2);
     }
 }

 // Test that nonrenderable texture formats clear 0x01 because toggle is enabled
 TEST_P(NonzeroTextureCreationTests, NonrenderableTextureFormat) {
     // TODO(crbug.com/dawn/667): Work around the fact that some platforms do not support reading
     // from Snorm textures.
     DAWN_TEST_UNSUPPORTED_IF(HasToggleEnabled("disable_snorm_read"));

     wgpu::TextureDescriptor descriptor;
     descriptor.dimension = wgpu::TextureDimension::e2D;
     descriptor.size.width = kSize;
     descriptor.size.height = kSize;
     descriptor.size.depthOrArrayLayers = 1;
     descriptor.sampleCount = 1;
     descriptor.format = wgpu::TextureFormat::RGBA8Snorm;
     descriptor.mipLevelCount = 1;
     descriptor.usage = wgpu::TextureUsage::CopySrc;

     // 2D
     {
         wgpu::Texture texture = device.CreateTexture(&descriptor);

         // Set buffer with dirty data so we know it is cleared by the lazy cleared texture copy
         uint32_t bufferSize = kSize * kSize;
         std::vector<uint8_t> data(sizeof(uint32_t) * bufferSize, 100);
         wgpu::Buffer bufferDst = utils::CreateBufferFromData(
             device, data.data(), static_cast<uint32_t>(data.size()), wgpu::BufferUsage::CopySrc);

         wgpu::ImageCopyBuffer imageCopyBuffer =
             utils::CreateImageCopyBuffer(bufferDst, 0, kSize * 4);
         wgpu::ImageCopyTexture imageCopyTexture =
             utils::CreateImageCopyTexture(texture, 0, {0, 0, 0});
         wgpu::Extent3D copySize = {kSize, kSize, 1};

         wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
         encoder.CopyTextureToBuffer(&imageCopyTexture, &imageCopyBuffer, &copySize);
         wgpu::CommandBuffer commands = encoder.Finish();
         queue.Submit(1, &commands);

         uint32_t expectedBytes = IsVulkan() ? 0x7F7F7F7F : 0x01010101;
         std::vector<uint32_t> expected(bufferSize, expectedBytes);
         EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), bufferDst, 0, expected.size());
     }

     // 2D Array
     {
         descriptor.dimension = wgpu::TextureDimension::e2D;
         descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
         wgpu::Texture texture = device.CreateTexture(&descriptor);

         // Set buffer with dirty data so we know it is cleared by the lazy cleared texture copy
         uint32_t bufferSize = kSize * kSize * kDepthOrArrayLayers;
         std::vector<uint8_t> data(sizeof(uint32_t) * bufferSize, 100);
         wgpu::Buffer bufferDst = utils::CreateBufferFromData(
             device, data.data(), static_cast<uint32_t>(data.size()), wgpu::BufferUsage::CopySrc);

         wgpu::ImageCopyBuffer imageCopyBuffer =
             utils::CreateImageCopyBuffer(bufferDst, 0, kSize * 4, kSize);
         wgpu::ImageCopyTexture imageCopyTexture =
             utils::CreateImageCopyTexture(texture, 0, {0, 0, 0});
         wgpu::Extent3D copySize = {kSize, kSize, kDepthOrArrayLayers};

         wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
         encoder.CopyTextureToBuffer(&imageCopyTexture, &imageCopyBuffer, &copySize);
         wgpu::CommandBuffer commands = encoder.Finish();
         queue.Submit(1, &commands);

         uint32_t expectedBytes = IsVulkan() ? 0x7F7F7F7F : 0x01010101;
         std::vector<uint32_t> expected(bufferSize, expectedBytes);
         EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), bufferDst, 0, expected.size());
     }

     // 3D
     {
         descriptor.dimension = wgpu::TextureDimension::e3D;
         descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
         wgpu::Texture texture = device.CreateTexture(&descriptor);

         // Set buffer with dirty data so we know it is cleared by the lazy cleared texture copy
         uint32_t bufferSize = kSize * kSize * kDepthOrArrayLayers;
         std::vector<uint8_t> data(sizeof(uint32_t) * bufferSize, 100);
         wgpu::Buffer bufferDst = utils::CreateBufferFromData(
             device, data.data(), static_cast<uint32_t>(data.size()), wgpu::BufferUsage::CopySrc);

         wgpu::ImageCopyBuffer imageCopyBuffer =
             utils::CreateImageCopyBuffer(bufferDst, 0, kSize * 4, kSize);
         wgpu::ImageCopyTexture imageCopyTexture =
             utils::CreateImageCopyTexture(texture, 0, {0, 0, 0});
         wgpu::Extent3D copySize = {kSize, kSize, kDepthOrArrayLayers};

         wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
         encoder.CopyTextureToBuffer(&imageCopyTexture, &imageCopyBuffer, &copySize);
         wgpu::CommandBuffer commands = encoder.Finish();
         queue.Submit(1, &commands);

         uint32_t expectedBytes = IsVulkan() ? 0x7F7F7F7F : 0x01010101;
         std::vector<uint32_t> expected(bufferSize, expectedBytes);
         EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), bufferDst, 0, expected.size());
     }
 }

 DAWN_INSTANTIATE_TEST(NonzeroTextureCreationTests,
                       D3D12Backend({"nonzero_clear_resources_on_creation_for_testing"},
                                    {"lazy_clear_resource_on_first_use"}),
                       MetalBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                    {"lazy_clear_resource_on_first_use"}),
                       OpenGLBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                     {"lazy_clear_resource_on_first_use"}),
                       OpenGLESBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                       {"lazy_clear_resource_on_first_use"}),
                       VulkanBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                     {"lazy_clear_resource_on_first_use"}));
	// Copyright 2019 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/DawnTest.h"

	#include "common/Constants.h"
	#include "utils/ComboRenderPipelineDescriptor.h"
	#include "utils/WGPUHelpers.h"

	class NonzeroTextureCreationTests : public DawnTest {
	protected:
	constexpr static uint32_t kSize = 128;
	constexpr static uint32_t kDepthOrArrayLayers = 7;
	};

	// Test that texture clears 0xFF because toggle is enabled.
	TEST_P(NonzeroTextureCreationTests, TextureCreationClears) {
	wgpu::TextureDescriptor descriptor;
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.width = kSize;
	descriptor.size.height = kSize;
	descriptor.size.depthOrArrayLayers = 1;
	descriptor.sampleCount = 1;
	descriptor.format = wgpu::TextureFormat::RGBA8Unorm;
	descriptor.mipLevelCount = 1;
	descriptor.usage = wgpu::TextureUsage::RenderAttachment \| wgpu::TextureUsage::CopySrc;

	// 2D
	{
	wgpu::Texture texture = device.CreateTexture(&descriptor);

	std::vector<RGBA8> expected(kSize * kSize, RGBA8(255, 255, 255, 255));
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0}, {kSize, kSize});
	}

	// 2D Array
	{
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
	wgpu::Texture texture = device.CreateTexture(&descriptor);

	std::vector<RGBA8> expected(kSize * kSize * kDepthOrArrayLayers, RGBA8(255, 255, 255, 255));
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {kSize, kSize, kDepthOrArrayLayers});
	}
	}

	// Test that 3D texture clears to nonzero because toggle is enabled.
	TEST_P(NonzeroTextureCreationTests, Texture3DCreationClears) {
	// TODO(crbug.com/dawn/547): 3D texture copies not fully implemented on D3D12.
	// TODO(crbug.com/angleproject/5967): This texture readback hits an assert in ANGLE.
	DAWN_TEST_UNSUPPORTED_IF(IsD3D12());
	DAWN_SUPPRESS_TEST_IF(IsANGLE());

	wgpu::TextureDescriptor descriptor;
	descriptor.dimension = wgpu::TextureDimension::e3D;
	descriptor.size.width = kSize;
	descriptor.size.height = kSize;
	descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
	descriptor.sampleCount = 1;
	descriptor.format = wgpu::TextureFormat::RGBA8Unorm;
	descriptor.mipLevelCount = 1;
	descriptor.usage = wgpu::TextureUsage::RenderAttachment \| wgpu::TextureUsage::CopySrc;
	wgpu::Texture texture = device.CreateTexture(&descriptor);

	std::vector<RGBA8> expected(kSize * kSize * kDepthOrArrayLayers, RGBA8(255, 255, 255, 255));
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {kSize, kSize, kDepthOrArrayLayers});
	}

	// Test that a depth texture clears 0xFF because toggle is enabled.
	TEST_P(NonzeroTextureCreationTests, Depth32TextureCreationDepthClears) {
	// Copies from depth textures not fully supported on the OpenGL backend right now.
	DAWN_TEST_UNSUPPORTED_IF(IsOpenGL() \|\| IsOpenGLES());

	wgpu::TextureDescriptor descriptor;
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.width = kSize;
	descriptor.size.height = kSize;
	descriptor.size.depthOrArrayLayers = 1;
	descriptor.sampleCount = 1;
	descriptor.mipLevelCount = 1;
	descriptor.usage = wgpu::TextureUsage::RenderAttachment \| wgpu::TextureUsage::CopySrc;
	descriptor.format = wgpu::TextureFormat::Depth32Float;

	// We can only really test Depth32Float here because Depth24Plus(Stencil8)? may be in an unknown
	// format.
	// TODO(crbug.com/dawn/145): Test other formats via sampling.

	// 2D
	{
	wgpu::Texture texture = device.CreateTexture(&descriptor);
	std::vector<float> expected(kSize * kSize, 1.f);
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0}, {kSize, kSize});
	}

	// 2D Array
	{
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
	wgpu::Texture texture = device.CreateTexture(&descriptor);
	std::vector<float> expected(kSize * kSize * kDepthOrArrayLayers, 1.f);
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {kSize, kSize, kDepthOrArrayLayers});
	}
	}

	// Test that non-zero mip level clears 0xFF because toggle is enabled.
	TEST_P(NonzeroTextureCreationTests, MipMapClears) {
	constexpr uint32_t mipLevels = 4;

	wgpu::TextureDescriptor descriptor;
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.width = kSize;
	descriptor.size.height = kSize;
	descriptor.size.depthOrArrayLayers = 1;
	descriptor.sampleCount = 1;
	descriptor.format = wgpu::TextureFormat::RGBA8Unorm;
	descriptor.mipLevelCount = mipLevels;
	descriptor.usage = wgpu::TextureUsage::RenderAttachment \| wgpu::TextureUsage::CopySrc;

	// 2D
	{
	wgpu::Texture texture = device.CreateTexture(&descriptor);
	uint32_t mipSize = kSize >> 2;
	std::vector<RGBA8> expected(mipSize * mipSize, RGBA8(255, 255, 255, 255));
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0}, {mipSize, mipSize}, 2);
	}

	// 2D Array
	{
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
	wgpu::Texture texture = device.CreateTexture(&descriptor);
	uint32_t mipSize = kSize >> 2;
	std::vector<RGBA8> expected(mipSize * mipSize * kDepthOrArrayLayers,
	RGBA8(255, 255, 255, 255));
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0},
	{mipSize, mipSize, kDepthOrArrayLayers}, 2);
	}

	// 3D
	{
	descriptor.dimension = wgpu::TextureDimension::e3D;
	descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
	wgpu::Texture texture = device.CreateTexture(&descriptor);
	uint32_t mipSize = kSize >> 2;
	uint32_t mipDepth = kDepthOrArrayLayers >> 2;
	std::vector<RGBA8> expected(mipSize * mipSize * mipDepth, RGBA8(255, 255, 255, 255));
	EXPECT_TEXTURE_EQ(expected.data(), texture, {0, 0, 0}, {mipSize, mipSize, mipDepth}, 2);
	}
	}

	// Test that nonrenderable texture formats clear 0x01 because toggle is enabled
	TEST_P(NonzeroTextureCreationTests, NonrenderableTextureFormat) {
	// TODO(crbug.com/dawn/667): Work around the fact that some platforms do not support reading
	// from Snorm textures.
	DAWN_TEST_UNSUPPORTED_IF(HasToggleEnabled("disable_snorm_read"));

	wgpu::TextureDescriptor descriptor;
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.width = kSize;
	descriptor.size.height = kSize;
	descriptor.size.depthOrArrayLayers = 1;
	descriptor.sampleCount = 1;
	descriptor.format = wgpu::TextureFormat::RGBA8Snorm;
	descriptor.mipLevelCount = 1;
	descriptor.usage = wgpu::TextureUsage::CopySrc;

	// 2D
	{
	wgpu::Texture texture = device.CreateTexture(&descriptor);

	// Set buffer with dirty data so we know it is cleared by the lazy cleared texture copy
	uint32_t bufferSize = kSize * kSize;
	std::vector<uint8_t> data(sizeof(uint32_t) * bufferSize, 100);
	wgpu::Buffer bufferDst = utils::CreateBufferFromData(
	device, data.data(), static_cast<uint32_t>(data.size()), wgpu::BufferUsage::CopySrc);

	wgpu::ImageCopyBuffer imageCopyBuffer =
	utils::CreateImageCopyBuffer(bufferDst, 0, kSize * 4);
	wgpu::ImageCopyTexture imageCopyTexture =
	utils::CreateImageCopyTexture(texture, 0, {0, 0, 0});
	wgpu::Extent3D copySize = {kSize, kSize, 1};

	wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
	encoder.CopyTextureToBuffer(&imageCopyTexture, &imageCopyBuffer, &copySize);
	wgpu::CommandBuffer commands = encoder.Finish();
	queue.Submit(1, &commands);

	uint32_t expectedBytes = IsVulkan() ? 0x7F7F7F7F : 0x01010101;
	std::vector<uint32_t> expected(bufferSize, expectedBytes);
	EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), bufferDst, 0, expected.size());
	}

	// 2D Array
	{
	descriptor.dimension = wgpu::TextureDimension::e2D;
	descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
	wgpu::Texture texture = device.CreateTexture(&descriptor);

	// Set buffer with dirty data so we know it is cleared by the lazy cleared texture copy
	uint32_t bufferSize = kSize * kSize * kDepthOrArrayLayers;
	std::vector<uint8_t> data(sizeof(uint32_t) * bufferSize, 100);
	wgpu::Buffer bufferDst = utils::CreateBufferFromData(
	device, data.data(), static_cast<uint32_t>(data.size()), wgpu::BufferUsage::CopySrc);

	wgpu::ImageCopyBuffer imageCopyBuffer =
	utils::CreateImageCopyBuffer(bufferDst, 0, kSize * 4, kSize);
	wgpu::ImageCopyTexture imageCopyTexture =
	utils::CreateImageCopyTexture(texture, 0, {0, 0, 0});
	wgpu::Extent3D copySize = {kSize, kSize, kDepthOrArrayLayers};

	wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
	encoder.CopyTextureToBuffer(&imageCopyTexture, &imageCopyBuffer, &copySize);
	wgpu::CommandBuffer commands = encoder.Finish();
	queue.Submit(1, &commands);

	uint32_t expectedBytes = IsVulkan() ? 0x7F7F7F7F : 0x01010101;
	std::vector<uint32_t> expected(bufferSize, expectedBytes);
	EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), bufferDst, 0, expected.size());
	}

	// 3D
	{
	descriptor.dimension = wgpu::TextureDimension::e3D;
	descriptor.size.depthOrArrayLayers = kDepthOrArrayLayers;
	wgpu::Texture texture = device.CreateTexture(&descriptor);

	// Set buffer with dirty data so we know it is cleared by the lazy cleared texture copy
	uint32_t bufferSize = kSize * kSize * kDepthOrArrayLayers;
	std::vector<uint8_t> data(sizeof(uint32_t) * bufferSize, 100);
	wgpu::Buffer bufferDst = utils::CreateBufferFromData(
	device, data.data(), static_cast<uint32_t>(data.size()), wgpu::BufferUsage::CopySrc);

	wgpu::ImageCopyBuffer imageCopyBuffer =
	utils::CreateImageCopyBuffer(bufferDst, 0, kSize * 4, kSize);
	wgpu::ImageCopyTexture imageCopyTexture =
	utils::CreateImageCopyTexture(texture, 0, {0, 0, 0});
	wgpu::Extent3D copySize = {kSize, kSize, kDepthOrArrayLayers};

	wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
	encoder.CopyTextureToBuffer(&imageCopyTexture, &imageCopyBuffer, &copySize);
	wgpu::CommandBuffer commands = encoder.Finish();
	queue.Submit(1, &commands);

	uint32_t expectedBytes = IsVulkan() ? 0x7F7F7F7F : 0x01010101;
	std::vector<uint32_t> expected(bufferSize, expectedBytes);
	EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), bufferDst, 0, expected.size());
	}
	}

	DAWN_INSTANTIATE_TEST(NonzeroTextureCreationTests,
	D3D12Backend({"nonzero_clear_resources_on_creation_for_testing"},
	{"lazy_clear_resource_on_first_use"}),
	MetalBackend({"nonzero_clear_resources_on_creation_for_testing"},
	{"lazy_clear_resource_on_first_use"}),
	OpenGLBackend({"nonzero_clear_resources_on_creation_for_testing"},
	{"lazy_clear_resource_on_first_use"}),
	OpenGLESBackend({"nonzero_clear_resources_on_creation_for_testing"},
	{"lazy_clear_resource_on_first_use"}),
	VulkanBackend({"nonzero_clear_resources_on_creation_for_testing"},
	{"lazy_clear_resource_on_first_use"}));