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// Copyright 2018 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 "dawn/tests/DawnTest.h"
#include "dawn/utils/WGPUHelpers.h"
namespace dawn {
namespace {
class ComputeCopyStorageBufferTests : public DawnTest {
public:
static constexpr int kInstances = 4;
static constexpr int kUintsPerInstance = 4;
static constexpr int kNumUints = kInstances * kUintsPerInstance;
void BasicTest(const char* shader);
};
void ComputeCopyStorageBufferTests::BasicTest(const char* shader) {
// Set up shader and pipeline
auto module = utils::CreateShaderModule(device, shader);
wgpu::ComputePipelineDescriptor csDesc;
csDesc.compute.module = module;
csDesc.compute.entryPoint = "main";
wgpu::ComputePipeline pipeline = device.CreateComputePipeline(&csDesc);
// Set up src storage buffer
wgpu::BufferDescriptor srcDesc;
srcDesc.size = kNumUints * sizeof(uint32_t);
srcDesc.usage =
wgpu::BufferUsage::Storage | wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst;
wgpu::Buffer src = device.CreateBuffer(&srcDesc);
std::array<uint32_t, kNumUints> expected;
for (uint32_t i = 0; i < kNumUints; ++i) {
expected[i] = (i + 1u) * 0x11111111u;
}
queue.WriteBuffer(src, 0, expected.data(), sizeof(expected));
EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), src, 0, kNumUints);
// Set up dst storage buffer
wgpu::BufferDescriptor dstDesc;
dstDesc.size = kNumUints * sizeof(uint32_t);
dstDesc.usage =
wgpu::BufferUsage::Storage | wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst;
wgpu::Buffer dst = device.CreateBuffer(&dstDesc);
std::array<uint32_t, kNumUints> zero{};
queue.WriteBuffer(dst, 0, zero.data(), sizeof(zero));
// Set up bind group and issue dispatch
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0),
{
{0, src, 0, kNumUints * sizeof(uint32_t)},
{1, dst, 0, kNumUints * sizeof(uint32_t)},
});
wgpu::CommandBuffer commands;
{
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder pass = encoder.BeginComputePass();
pass.SetPipeline(pipeline);
pass.SetBindGroup(0, bindGroup);
pass.DispatchWorkgroups(kInstances);
pass.End();
commands = encoder.Finish();
}
queue.Submit(1, &commands);
EXPECT_BUFFER_U32_RANGE_EQ(expected.data(), dst, 0, kNumUints);
}
// Test that a trivial compute-shader memcpy implementation works.
TEST_P(ComputeCopyStorageBufferTests, SizedArrayOfBasic) {
BasicTest(R"(
struct Buf {
s : array<vec4u, 4>
}
@group(0) @binding(0) var<storage, read_write> src : Buf;
@group(0) @binding(1) var<storage, read_write> dst : Buf;
@compute @workgroup_size(1)
fn main(@builtin(global_invocation_id) GlobalInvocationID : vec3u) {
let index : u32 = GlobalInvocationID.x;
if (index >= 4u) { return; }
dst.s[index] = src.s[index];
})");
}
// Test that a slightly-less-trivial compute-shader memcpy implementation works.
TEST_P(ComputeCopyStorageBufferTests, SizedArrayOfStruct) {
BasicTest(R"(
struct S {
a : vec2u,
b : vec2u,
}
struct Buf {
s : array<S, 4>
}
@group(0) @binding(0) var<storage, read_write> src : Buf;
@group(0) @binding(1) var<storage, read_write> dst : Buf;
@compute @workgroup_size(1)
fn main(@builtin(global_invocation_id) GlobalInvocationID : vec3u) {
let index : u32 = GlobalInvocationID.x;
if (index >= 4u) { return; }
dst.s[index] = src.s[index];
})");
}
// Test that a trivial compute-shader memcpy implementation works.
TEST_P(ComputeCopyStorageBufferTests, UnsizedArrayOfBasic) {
BasicTest(R"(
struct Buf {
s : array<vec4u>
}
@group(0) @binding(0) var<storage, read_write> src : Buf;
@group(0) @binding(1) var<storage, read_write> dst : Buf;
@compute @workgroup_size(1)
fn main(@builtin(global_invocation_id) GlobalInvocationID : vec3u) {
let index : u32 = GlobalInvocationID.x;
if (index >= 4u) { return; }
dst.s[index] = src.s[index];
})");
}
DAWN_INSTANTIATE_TEST(ComputeCopyStorageBufferTests,
D3D11Backend(),
D3D12Backend(),
MetalBackend(),
OpenGLBackend(),
OpenGLESBackend(),
VulkanBackend());
} // anonymous namespace
} // namespace dawn