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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 "dawn/tests/DawnTest.h"
#include "dawn/utils/ComboRenderPipelineDescriptor.h"
#include "dawn/utils/WGPUHelpers.h"
namespace dawn {
namespace {
constexpr uint32_t kRTSize = 4;
class DrawTest : public DawnTest {
protected:
void SetUp() override {
DawnTest::SetUp();
renderPass = utils::CreateBasicRenderPass(device, kRTSize, kRTSize);
wgpu::ShaderModule vsModule = utils::CreateShaderModule(device, R"(
@vertex
fn main(@location(0) pos : vec4f) -> @builtin(position) vec4f {
return pos;
})");
wgpu::ShaderModule fsModule = utils::CreateShaderModule(device, R"(
@fragment fn main() -> @location(0) vec4f {
return vec4f(0.0, 1.0, 0.0, 1.0);
})");
utils::ComboRenderPipelineDescriptor descriptor;
descriptor.vertex.module = vsModule;
descriptor.cFragment.module = fsModule;
descriptor.primitive.topology = wgpu::PrimitiveTopology::TriangleList;
descriptor.vertex.bufferCount = 1;
descriptor.cBuffers[0].arrayStride = 4 * sizeof(float);
descriptor.cBuffers[0].attributeCount = 1;
descriptor.cAttributes[0].format = wgpu::VertexFormat::Float32x4;
descriptor.cTargets[0].format = renderPass.colorFormat;
pipeline = device.CreateRenderPipeline(&descriptor);
vertexBuffer = utils::CreateBufferFromData<float>(
device, wgpu::BufferUsage::Vertex,
{// The bottom left triangle
-1.0f, 1.0f, 0.0f, 1.0f, 1.0f, -1.0f, 0.0f, 1.0f, -1.0f, -1.0f, 0.0f, 1.0f,
// The top right triangle
-1.0f, 1.0f, 0.0f, 1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 1.0f, 1.0f, 0.0f, 1.0f});
}
utils::BasicRenderPass renderPass;
wgpu::RenderPipeline pipeline;
wgpu::Buffer vertexBuffer;
void Test(uint32_t vertexCount,
uint32_t instanceCount,
uint32_t firstIndex,
uint32_t firstInstance,
utils::RGBA8 bottomLeftExpected,
utils::RGBA8 topRightExpected) {
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
pass.SetPipeline(pipeline);
pass.SetVertexBuffer(0, vertexBuffer);
pass.Draw(vertexCount, instanceCount, firstIndex, firstInstance);
pass.End();
}
wgpu::CommandBuffer commands = encoder.Finish();
queue.Submit(1, &commands);
EXPECT_PIXEL_RGBA8_EQ(bottomLeftExpected, renderPass.color, 1, 3);
EXPECT_PIXEL_RGBA8_EQ(topRightExpected, renderPass.color, 3, 1);
}
};
// The basic triangle draw.
TEST_P(DrawTest, Uint32) {
utils::RGBA8 filled(0, 255, 0, 255);
utils::RGBA8 notFilled(0, 0, 0, 0);
// Test a draw with no indices.
Test(0, 0, 0, 0, notFilled, notFilled);
// Test a draw with only the first 3 indices (bottom left triangle)
Test(3, 1, 0, 0, filled, notFilled);
// Test a draw with only the last 3 indices (top right triangle)
Test(3, 1, 3, 0, notFilled, filled);
// Test a draw with all 6 indices (both triangles).
Test(6, 1, 0, 0, filled, filled);
}
DAWN_INSTANTIATE_TEST(DrawTest,
D3D11Backend(),
D3D12Backend(),
MetalBackend(),
OpenGLBackend(),
OpenGLESBackend(),
VulkanBackend());
} // anonymous namespace
} // namespace dawn