| // 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 <array> |
| #include <vector> |
| |
| #include "dawn/tests/DawnTest.h" |
| |
| class NonzeroBufferCreationTests : public DawnTest { |
| public: |
| void MapReadAsyncAndWait(wgpu::Buffer buffer, uint64_t offset, uint64_t size) { |
| bool done = false; |
| buffer.MapAsync( |
| wgpu::MapMode::Read, offset, size, |
| [](WGPUBufferMapAsyncStatus status, void* userdata) { |
| ASSERT_EQ(WGPUBufferMapAsyncStatus_Success, status); |
| *static_cast<bool*>(userdata) = true; |
| }, |
| &done); |
| |
| while (!done) { |
| WaitABit(); |
| } |
| } |
| }; |
| |
| // Verify that each byte of the buffer has all been initialized to 1 with the toggle enabled when it |
| // is created with CopyDst usage. |
| TEST_P(NonzeroBufferCreationTests, BufferCreationWithCopyDstUsage) { |
| constexpr uint32_t kSize = 32u; |
| |
| wgpu::BufferDescriptor descriptor; |
| descriptor.size = kSize; |
| descriptor.usage = wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst; |
| |
| wgpu::Buffer buffer = device.CreateBuffer(&descriptor); |
| |
| std::vector<uint8_t> expectedData(kSize, uint8_t(1u)); |
| EXPECT_BUFFER_U32_RANGE_EQ(reinterpret_cast<uint32_t*>(expectedData.data()), buffer, 0, |
| kSize / sizeof(uint32_t)); |
| } |
| |
| // Verify that each byte of the buffer has all been initialized to 1 with the toggle enabled when it |
| // is created with MapWrite without CopyDst usage. |
| TEST_P(NonzeroBufferCreationTests, BufferCreationWithMapWriteWithoutCopyDstUsage) { |
| constexpr uint32_t kSize = 32u; |
| |
| wgpu::BufferDescriptor descriptor; |
| descriptor.size = kSize; |
| descriptor.usage = wgpu::BufferUsage::MapWrite | wgpu::BufferUsage::CopySrc; |
| |
| wgpu::Buffer buffer = device.CreateBuffer(&descriptor); |
| |
| std::vector<uint8_t> expectedData(kSize, uint8_t(1u)); |
| EXPECT_BUFFER_U32_RANGE_EQ(reinterpret_cast<uint32_t*>(expectedData.data()), buffer, 0, |
| kSize / sizeof(uint32_t)); |
| } |
| |
| // Verify that each byte of the buffer has all been initialized to 1 with the toggle enabled when |
| // it is created with mappedAtCreation == true. |
| TEST_P(NonzeroBufferCreationTests, BufferCreationWithMappedAtCreation) { |
| // When we use Dawn wire, the lazy initialization of the buffers with mappedAtCreation == true |
| // are done in the Dawn wire and we don't plan to get it work with the toggle |
| // "nonzero_clear_resources_on_creation_for_testing" (we will have more tests on it in the |
| // BufferZeroInitTests. |
| DAWN_TEST_UNSUPPORTED_IF(UsesWire()); |
| |
| constexpr uint32_t kSize = 32u; |
| |
| wgpu::BufferDescriptor defaultDescriptor; |
| defaultDescriptor.size = kSize; |
| defaultDescriptor.mappedAtCreation = true; |
| |
| const std::vector<uint8_t> expectedData(kSize, uint8_t(1u)); |
| const uint32_t* expectedDataPtr = reinterpret_cast<const uint32_t*>(expectedData.data()); |
| |
| // Buffer with MapRead usage |
| { |
| wgpu::BufferDescriptor descriptor = defaultDescriptor; |
| descriptor.usage = wgpu::BufferUsage::MapRead; |
| wgpu::Buffer buffer = device.CreateBuffer(&descriptor); |
| |
| const uint8_t* mappedData = static_cast<const uint8_t*>(buffer.GetConstMappedRange()); |
| EXPECT_EQ(0, memcmp(mappedData, expectedData.data(), kSize)); |
| buffer.Unmap(); |
| |
| MapReadAsyncAndWait(buffer, 0, kSize); |
| mappedData = static_cast<const uint8_t*>(buffer.GetConstMappedRange()); |
| EXPECT_EQ(0, memcmp(mappedData, expectedData.data(), kSize)); |
| buffer.Unmap(); |
| } |
| |
| // Buffer with MapWrite usage |
| { |
| wgpu::BufferDescriptor descriptor = defaultDescriptor; |
| descriptor.usage = wgpu::BufferUsage::MapWrite | wgpu::BufferUsage::CopySrc; |
| wgpu::Buffer buffer = device.CreateBuffer(&descriptor); |
| |
| const uint8_t* mappedData = static_cast<const uint8_t*>(buffer.GetConstMappedRange()); |
| EXPECT_EQ(0, memcmp(mappedData, expectedData.data(), kSize)); |
| buffer.Unmap(); |
| |
| EXPECT_BUFFER_U32_RANGE_EQ(expectedDataPtr, buffer, 0, kSize / sizeof(uint32_t)); |
| } |
| |
| // Buffer with neither MapRead nor MapWrite usage |
| { |
| wgpu::BufferDescriptor descriptor = defaultDescriptor; |
| descriptor.usage = wgpu::BufferUsage::CopySrc; |
| wgpu::Buffer buffer = device.CreateBuffer(&descriptor); |
| |
| const uint8_t* mappedData = static_cast<const uint8_t*>(buffer.GetConstMappedRange()); |
| EXPECT_EQ(0, memcmp(mappedData, expectedData.data(), kSize)); |
| buffer.Unmap(); |
| |
| EXPECT_BUFFER_U32_RANGE_EQ(expectedDataPtr, buffer, 0, kSize / sizeof(uint32_t)); |
| } |
| } |
| |
| DAWN_INSTANTIATE_TEST(NonzeroBufferCreationTests, |
| D3D11Backend({"nonzero_clear_resources_on_creation_for_testing"}, |
| {"lazy_clear_resource_on_first_use"}), |
| 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"})); |