chromium/third_party/dawn/src/dawn/tests/end2end/BufferZeroInitTests.cpp

// Copyright 2020 The Dawn & Tint Authors
//
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//    this list of conditions and the following disclaimer in the documentation
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#include <vector>

#include "dawn/common/Math.h"
#include "dawn/tests/DawnTest.h"
#include "dawn/utils/ComboRenderPipelineDescriptor.h"
#include "dawn/utils/TestUtils.h"
#include "dawn/utils/WGPUHelpers.h"

namespace dawn {
namespace {

#define EXPECT_LAZY_CLEAR(N, statement) …

struct BufferZeroInitInCopyT2BSpec { … };

class BufferZeroInitTest : public DawnTest { … };

// Test that calling writeBuffer to overwrite the entire buffer doesn't need to lazily initialize
// the destination buffer.
TEST_P(BufferZeroInitTest, WriteBufferToEntireBuffer) { … }

// Test that calling writeBuffer to overwrite a part of buffer needs to lazily initialize the
// destination buffer.
TEST_P(BufferZeroInitTest, WriteBufferToSubBuffer) { … }

// Test that the code path of CopyBufferToBuffer clears the source buffer correctly when it is the
// first use of the source buffer.
TEST_P(BufferZeroInitTest, CopyBufferToBufferSource) { … }

// Test that the code path of CopyBufferToBuffer clears the destination buffer correctly when it is
// the first use of the destination buffer.
TEST_P(BufferZeroInitTest, CopyBufferToBufferDestination) { … }

// Test that the code path of readable buffer mapping clears the buffer correctly when it is the
// first use of the buffer.
TEST_P(BufferZeroInitTest, MapAsync_Read) { … }

// Test that the code path of writable buffer mapping clears the buffer correctly when it is the
// first use of the buffer.
TEST_P(BufferZeroInitTest, MapAsync_Write) { … }

// Test that the code path of creating a buffer with BufferDescriptor.mappedAtCreation == true
// clears the buffer correctly at the creation of the buffer.
TEST_P(BufferZeroInitTest, MappedAtCreation) { … }

// Test that the code path of CopyBufferToTexture clears the source buffer correctly when it is the
// first use of the buffer.
TEST_P(BufferZeroInitTest, CopyBufferToTexture) { … }

// Test that the code path of CopyTextureToBuffer clears the destination buffer correctly when it is
// the first use of the buffer and the texture is a 2D non-array texture.
TEST_P(BufferZeroInitTest, Copy2DTextureToBuffer) { … }

// Test that the code path of CopyTextureToBuffer clears the destination buffer correctly when it is
// the first use of the buffer and the texture is a 2D array texture.
TEST_P(BufferZeroInitTest, Copy2DArrayTextureToBuffer) { … }

// Test that the buffer will be lazy initialized correctly when its first use is to be bound as a
// uniform buffer.
TEST_P(BufferZeroInitTest, BoundAsUniformBuffer) { … }

// Test that the buffer will be lazy initialized correctly when its first use is to be bound as a
// read-only storage buffer.
TEST_P(BufferZeroInitTest, BoundAsReadonlyStorageBuffer) { … }

// Test that the buffer will be lazy initialized correctly when its first use is to be bound as a
// storage buffer.
TEST_P(BufferZeroInitTest, BoundAsStorageBuffer) { … }

// Test the buffer will be lazily initialized correctly when its first use is in SetVertexBuffer.
TEST_P(BufferZeroInitTest, SetVertexBuffer) { … }

// Test for crbug.com/dawn/837.
// Test that the padding after a buffer allocation is initialized to 0.
// This test makes an unaligned vertex buffer which should be padded in the backend
// allocation. It then tries to index off the end of the vertex buffer in an indexed
// draw call. A backend which implements robust buffer access via clamping should
// still see zeros at the end of the buffer.
TEST_P(BufferZeroInitTest, PaddingInitialized) { … }

// Test the buffer will be lazily initialized correctly when its first use is in SetIndexBuffer.
TEST_P(BufferZeroInitTest, SetIndexBuffer) { … }

// Test the buffer will be lazily initialized correctly when its first use is an indirect buffer for
// DrawIndirect.
TEST_P(BufferZeroInitTest, IndirectBufferForDrawIndirect) { … }

// Test the buffer will be lazily initialized correctly when its first use is an indirect buffer for
// DrawIndexedIndirect.
TEST_P(BufferZeroInitTest, IndirectBufferForDrawIndexedIndirect) { … }

// Test the buffer will be lazily initialized correctly when its first use is an indirect buffer for
// DispatchIndirect.
TEST_P(BufferZeroInitTest, IndirectBufferForDispatchIndirect) { … }

// Test the buffer will be lazily initialized correctly when its first use is in resolveQuerySet
TEST_P(BufferZeroInitTest, ResolveQuerySet) { … }

DAWN_INSTANTIATE_TEST(BufferZeroInitTest,
                      D3D11Backend({ … };

}  // anonymous namespace
}  // namespace dawn