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// Copyright 2019 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <array>
#include <vector>
#include "dawn/tests/DawnTest.h"
namespace dawn {
namespace {
class NonzeroBufferCreationTests : public DawnTest {};
// 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();
MapAsyncAndWait(buffer, wgpu::MapMode::Read, 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"}));
} // anonymous namespace
} // namespace dawn