1068 lines
45 KiB
C++
1068 lines
45 KiB
C++
// Copyright 2017 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <array>
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#include <cmath>
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#include "tests/DawnTest.h"
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#include "common/Assert.h"
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#include "common/Constants.h"
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#include "utils/ComboRenderPipelineDescriptor.h"
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#include "utils/DawnHelpers.h"
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constexpr static unsigned int kRTSize = 64;
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class ColorStateTest : public DawnTest {
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protected:
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void SetUp() override {
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DawnTest::SetUp();
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vsModule = utils::CreateShaderModule(device, utils::ShaderStage::Vertex, R"(
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#version 450
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void main() {
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const vec2 pos[3] = vec2[3](vec2(-1.f, -1.f), vec2(3.f, -1.f), vec2(-1.f, 3.f));
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gl_Position = vec4(pos[gl_VertexIndex], 0.f, 1.f);
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}
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)");
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bindGroupLayout = utils::MakeBindGroupLayout(
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device, {
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{0, dawn::ShaderStageBit::Fragment, dawn::BindingType::UniformBuffer},
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});
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pipelineLayout = utils::MakeBasicPipelineLayout(device, &bindGroupLayout);
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renderPass = utils::CreateBasicRenderPass(device, kRTSize, kRTSize);
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}
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struct TriangleSpec {
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RGBA8 color;
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std::array<float, 4> blendFactor = {};
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};
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// Set up basePipeline and testPipeline. testPipeline has the given blend state on the first
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// attachment. basePipeline has no blending
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void SetupSingleSourcePipelines(dawn::ColorStateDescriptor colorStateDescriptor) {
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dawn::ShaderModule fsModule =
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utils::CreateShaderModule(device, utils::ShaderStage::Fragment, R"(
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#version 450
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layout(set = 0, binding = 0) uniform myBlock {
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vec4 color;
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} myUbo;
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layout(location = 0) out vec4 fragColor;
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void main() {
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fragColor = myUbo.color;
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}
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)");
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utils::ComboRenderPipelineDescriptor baseDescriptor(device);
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baseDescriptor.layout = pipelineLayout;
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baseDescriptor.cVertexStage.module = vsModule;
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baseDescriptor.cFragmentStage.module = fsModule;
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baseDescriptor.cColorStates[0]->format = renderPass.colorFormat;
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basePipeline = device.CreateRenderPipeline(&baseDescriptor);
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utils::ComboRenderPipelineDescriptor testDescriptor(device);
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testDescriptor.layout = pipelineLayout;
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testDescriptor.cVertexStage.module = vsModule;
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testDescriptor.cFragmentStage.module = fsModule;
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testDescriptor.cColorStates[0] = &colorStateDescriptor;
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testDescriptor.cColorStates[0]->format = renderPass.colorFormat;
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testPipeline = device.CreateRenderPipeline(&testDescriptor);
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}
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// Create a bind group to set the colors as a uniform buffer
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template <size_t N>
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dawn::BindGroup MakeBindGroupForColors(std::array<RGBA8, N> colors) {
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std::array<float, 4 * N> data;
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for (unsigned int i = 0; i < N; ++i) {
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data[4 * i + 0] = static_cast<float>(colors[i].r) / 255.f;
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data[4 * i + 1] = static_cast<float>(colors[i].g) / 255.f;
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data[4 * i + 2] = static_cast<float>(colors[i].b) / 255.f;
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data[4 * i + 3] = static_cast<float>(colors[i].a) / 255.f;
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}
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uint32_t bufferSize = static_cast<uint32_t>(4 * N * sizeof(float));
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dawn::Buffer buffer =
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utils::CreateBufferFromData(device, &data, bufferSize, dawn::BufferUsageBit::Uniform);
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return utils::MakeBindGroup(device, bindGroupLayout, {{0, buffer, 0, bufferSize}});
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}
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// Test that after drawing a triangle with the base color, and then the given triangle spec, the
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// color is as expected
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void DoSingleSourceTest(RGBA8 base, const TriangleSpec& triangle, const RGBA8& expected) {
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dawn::Color blendColor{triangle.blendFactor[0], triangle.blendFactor[1],
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triangle.blendFactor[2], triangle.blendFactor[3]};
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dawn::CommandEncoder encoder = device.CreateCommandEncoder();
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{
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dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
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// First use the base pipeline to draw a triangle with no blending
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pass.SetPipeline(basePipeline);
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pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({{base}})), 0, nullptr);
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pass.Draw(3, 1, 0, 0);
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// Then use the test pipeline to draw the test triangle with blending
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pass.SetPipeline(testPipeline);
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pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({{triangle.color}})), 0, nullptr);
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pass.SetBlendColor(&blendColor);
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pass.Draw(3, 1, 0, 0);
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pass.EndPass();
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}
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dawn::CommandBuffer commands = encoder.Finish();
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queue.Submit(1, &commands);
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EXPECT_PIXEL_RGBA8_EQ(expected, renderPass.color, kRTSize / 2, kRTSize / 2);
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}
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// Given a vector of tests where each element is <testColor, expectedColor>, check that all
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// expectations are true for the given blend operation
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void CheckBlendOperation(RGBA8 base,
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dawn::BlendOperation operation,
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std::vector<std::pair<RGBA8, RGBA8>> tests) {
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dawn::BlendDescriptor blend;
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blend.operation = operation;
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blend.srcFactor = dawn::BlendFactor::One;
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blend.dstFactor = dawn::BlendFactor::One;
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dawn::ColorStateDescriptor descriptor;
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descriptor.alphaBlend = blend;
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descriptor.colorBlend = blend;
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descriptor.writeMask = dawn::ColorWriteMask::All;
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SetupSingleSourcePipelines(descriptor);
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for (const auto& test : tests) {
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DoSingleSourceTest(base, {test.first}, test.second);
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}
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}
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// Given a vector of tests where each element is <testSpec, expectedColor>, check that all
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// expectations are true for the given blend factors
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void CheckBlendFactor(RGBA8 base,
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dawn::BlendFactor colorSrcFactor,
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dawn::BlendFactor colorDstFactor,
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dawn::BlendFactor alphaSrcFactor,
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dawn::BlendFactor alphaDstFactor,
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std::vector<std::pair<TriangleSpec, RGBA8>> tests) {
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dawn::BlendDescriptor colorBlend;
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colorBlend.operation = dawn::BlendOperation::Add;
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colorBlend.srcFactor = colorSrcFactor;
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colorBlend.dstFactor = colorDstFactor;
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dawn::BlendDescriptor alphaBlend;
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alphaBlend.operation = dawn::BlendOperation::Add;
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alphaBlend.srcFactor = alphaSrcFactor;
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alphaBlend.dstFactor = alphaDstFactor;
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dawn::ColorStateDescriptor descriptor;
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descriptor.colorBlend = colorBlend;
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descriptor.alphaBlend = alphaBlend;
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descriptor.writeMask = dawn::ColorWriteMask::All;
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SetupSingleSourcePipelines(descriptor);
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for (const auto& test : tests) {
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DoSingleSourceTest(base, test.first, test.second);
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}
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}
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void CheckSrcBlendFactor(RGBA8 base,
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dawn::BlendFactor colorFactor,
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dawn::BlendFactor alphaFactor,
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std::vector<std::pair<TriangleSpec, RGBA8>> tests) {
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CheckBlendFactor(base, colorFactor, dawn::BlendFactor::One, alphaFactor,
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dawn::BlendFactor::One, tests);
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}
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void CheckDstBlendFactor(RGBA8 base,
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dawn::BlendFactor colorFactor,
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dawn::BlendFactor alphaFactor,
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std::vector<std::pair<TriangleSpec, RGBA8>> tests) {
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CheckBlendFactor(base, dawn::BlendFactor::One, colorFactor, dawn::BlendFactor::One,
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alphaFactor, tests);
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}
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utils::BasicRenderPass renderPass;
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dawn::RenderPipeline basePipeline;
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dawn::RenderPipeline testPipeline;
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dawn::ShaderModule vsModule;
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dawn::BindGroupLayout bindGroupLayout;
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dawn::PipelineLayout pipelineLayout;
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};
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namespace {
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// Add two colors and clamp
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constexpr RGBA8 operator+(const RGBA8& col1, const RGBA8& col2) {
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int r = static_cast<int>(col1.r) + static_cast<int>(col2.r);
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int g = static_cast<int>(col1.g) + static_cast<int>(col2.g);
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int b = static_cast<int>(col1.b) + static_cast<int>(col2.b);
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int a = static_cast<int>(col1.a) + static_cast<int>(col2.a);
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r = (r > 255 ? 255 : (r < 0 ? 0 : r));
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g = (g > 255 ? 255 : (g < 0 ? 0 : g));
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b = (b > 255 ? 255 : (b < 0 ? 0 : b));
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a = (a > 255 ? 255 : (a < 0 ? 0 : a));
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return RGBA8(static_cast<uint8_t>(r), static_cast<uint8_t>(g), static_cast<uint8_t>(b),
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static_cast<uint8_t>(a));
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}
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// Subtract two colors and clamp
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constexpr RGBA8 operator-(const RGBA8& col1, const RGBA8& col2) {
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int r = static_cast<int>(col1.r) - static_cast<int>(col2.r);
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int g = static_cast<int>(col1.g) - static_cast<int>(col2.g);
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int b = static_cast<int>(col1.b) - static_cast<int>(col2.b);
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int a = static_cast<int>(col1.a) - static_cast<int>(col2.a);
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r = (r > 255 ? 255 : (r < 0 ? 0 : r));
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g = (g > 255 ? 255 : (g < 0 ? 0 : g));
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b = (b > 255 ? 255 : (b < 0 ? 0 : b));
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a = (a > 255 ? 255 : (a < 0 ? 0 : a));
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return RGBA8(static_cast<uint8_t>(r), static_cast<uint8_t>(g), static_cast<uint8_t>(b),
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static_cast<uint8_t>(a));
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}
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// Get the component-wise minimum of two colors
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RGBA8 min(const RGBA8& col1, const RGBA8& col2) {
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return RGBA8(std::min(col1.r, col2.r), std::min(col1.g, col2.g), std::min(col1.b, col2.b),
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std::min(col1.a, col2.a));
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}
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// Get the component-wise maximum of two colors
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RGBA8 max(const RGBA8& col1, const RGBA8& col2) {
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return RGBA8(std::max(col1.r, col2.r), std::max(col1.g, col2.g), std::max(col1.b, col2.b),
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std::max(col1.a, col2.a));
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}
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// Blend two RGBA8 color values parameterized by the provided factors in the range [0.f, 1.f]
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RGBA8 mix(const RGBA8& col1, const RGBA8& col2, std::array<float, 4> fac) {
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float r = static_cast<float>(col1.r) * (1.f - fac[0]) + static_cast<float>(col2.r) * fac[0];
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float g = static_cast<float>(col1.g) * (1.f - fac[1]) + static_cast<float>(col2.g) * fac[1];
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float b = static_cast<float>(col1.b) * (1.f - fac[2]) + static_cast<float>(col2.b) * fac[2];
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float a = static_cast<float>(col1.a) * (1.f - fac[3]) + static_cast<float>(col2.a) * fac[3];
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return RGBA8({static_cast<uint8_t>(std::round(r)), static_cast<uint8_t>(std::round(g)),
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static_cast<uint8_t>(std::round(b)), static_cast<uint8_t>(std::round(a))});
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}
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// Blend two RGBA8 color values parameterized by the provided RGBA8 factor
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RGBA8 mix(const RGBA8& col1, const RGBA8& col2, const RGBA8& fac) {
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std::array<float, 4> f = {{
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static_cast<float>(fac.r) / 255.f,
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static_cast<float>(fac.g) / 255.f,
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static_cast<float>(fac.b) / 255.f,
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static_cast<float>(fac.a) / 255.f,
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}};
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return mix(col1, col2, f);
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}
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constexpr std::array<RGBA8, 8> kColors = {{
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// check operations over multiple channels
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RGBA8(64, 0, 0, 0),
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RGBA8(0, 64, 0, 0),
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RGBA8(64, 0, 32, 0),
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RGBA8(0, 64, 32, 0),
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RGBA8(128, 0, 128, 128),
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RGBA8(0, 128, 128, 128),
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// check cases that may cause overflow
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RGBA8(0, 0, 0, 0),
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RGBA8(255, 255, 255, 255),
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}};
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} // namespace
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// Test compilation and usage of the fixture
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TEST_P(ColorStateTest, Basic) {
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dawn::BlendDescriptor blend;
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blend.operation = dawn::BlendOperation::Add;
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blend.srcFactor = dawn::BlendFactor::One;
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blend.dstFactor = dawn::BlendFactor::Zero;
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dawn::ColorStateDescriptor descriptor;
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descriptor.alphaBlend = blend;
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descriptor.colorBlend = blend;
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descriptor.writeMask = dawn::ColorWriteMask::All;
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SetupSingleSourcePipelines(descriptor);
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DoSingleSourceTest(RGBA8(0, 0, 0, 0), {RGBA8(255, 0, 0, 0)}, RGBA8(255, 0, 0, 0));
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}
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// The following tests check test that the blend operation works
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TEST_P(ColorStateTest, BlendOperationAdd) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<RGBA8, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) { return std::make_pair(color, base + color); });
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CheckBlendOperation(base, dawn::BlendOperation::Add, tests);
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}
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TEST_P(ColorStateTest, BlendOperationSubtract) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<RGBA8, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) { return std::make_pair(color, color - base); });
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CheckBlendOperation(base, dawn::BlendOperation::Subtract, tests);
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}
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TEST_P(ColorStateTest, BlendOperationReverseSubtract) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<RGBA8, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) { return std::make_pair(color, base - color); });
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CheckBlendOperation(base, dawn::BlendOperation::ReverseSubtract, tests);
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}
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TEST_P(ColorStateTest, BlendOperationMin) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<RGBA8, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) { return std::make_pair(color, min(base, color)); });
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CheckBlendOperation(base, dawn::BlendOperation::Min, tests);
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}
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TEST_P(ColorStateTest, BlendOperationMax) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<RGBA8, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) { return std::make_pair(color, max(base, color)); });
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CheckBlendOperation(base, dawn::BlendOperation::Max, tests);
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}
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// The following tests check that the Source blend factor works
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TEST_P(ColorStateTest, SrcBlendFactorZero) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<TriangleSpec, RGBA8>> tests;
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std::transform(
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kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) { return std::make_pair(TriangleSpec({{color}}), base); });
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CheckSrcBlendFactor(base, dawn::BlendFactor::Zero, dawn::BlendFactor::Zero, tests);
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}
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TEST_P(ColorStateTest, SrcBlendFactorOne) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<TriangleSpec, RGBA8>> tests;
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std::transform(
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kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) { return std::make_pair(TriangleSpec({{color}}), base + color); });
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CheckSrcBlendFactor(base, dawn::BlendFactor::One, dawn::BlendFactor::One, tests);
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}
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TEST_P(ColorStateTest, SrcBlendFactorSrcColor) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<TriangleSpec, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) {
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RGBA8 fac = color;
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fac.a = 0;
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RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
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return std::make_pair(TriangleSpec({{color}}), expected);
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});
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CheckSrcBlendFactor(base, dawn::BlendFactor::SrcColor, dawn::BlendFactor::Zero, tests);
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}
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TEST_P(ColorStateTest, SrcBlendFactorOneMinusSrcColor) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<TriangleSpec, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) {
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RGBA8 fac = RGBA8(255, 255, 255, 255) - color;
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fac.a = 0;
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RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
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return std::make_pair(TriangleSpec({{color}}), expected);
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});
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CheckSrcBlendFactor(base, dawn::BlendFactor::OneMinusSrcColor, dawn::BlendFactor::Zero, tests);
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}
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TEST_P(ColorStateTest, SrcBlendFactorSrcAlpha) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<TriangleSpec, RGBA8>> tests;
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std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
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[&](const RGBA8& color) {
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RGBA8 fac(color.a, color.a, color.a, color.a);
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RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
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return std::make_pair(TriangleSpec({{color}}), expected);
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});
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CheckSrcBlendFactor(base, dawn::BlendFactor::SrcAlpha, dawn::BlendFactor::SrcAlpha, tests);
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}
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TEST_P(ColorStateTest, SrcBlendFactorOneMinusSrcAlpha) {
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RGBA8 base(32, 64, 128, 192);
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std::vector<std::pair<TriangleSpec, RGBA8>> tests;
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std::transform(
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kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) {
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RGBA8 fac = RGBA8(255, 255, 255, 255) - RGBA8(color.a, color.a, color.a, color.a);
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RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
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return std::make_pair(TriangleSpec({{color}}), expected);
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});
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CheckSrcBlendFactor(base, dawn::BlendFactor::OneMinusSrcAlpha,
|
|
dawn::BlendFactor::OneMinusSrcAlpha, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, SrcBlendFactorDstColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac = base;
|
|
fac.a = 0;
|
|
RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckSrcBlendFactor(base, dawn::BlendFactor::DstColor, dawn::BlendFactor::Zero, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, SrcBlendFactorOneMinusDstColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac = RGBA8(255, 255, 255, 255) - base;
|
|
fac.a = 0;
|
|
RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckSrcBlendFactor(base, dawn::BlendFactor::OneMinusDstColor, dawn::BlendFactor::Zero, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, SrcBlendFactorDstAlpha) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac(base.a, base.a, base.a, base.a);
|
|
RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckSrcBlendFactor(base, dawn::BlendFactor::DstAlpha, dawn::BlendFactor::DstAlpha, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, SrcBlendFactorOneMinusDstAlpha) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(
|
|
kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) {
|
|
RGBA8 fac = RGBA8(255, 255, 255, 255) - RGBA8(base.a, base.a, base.a, base.a);
|
|
RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckSrcBlendFactor(base, dawn::BlendFactor::OneMinusDstAlpha,
|
|
dawn::BlendFactor::OneMinusDstAlpha, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, SrcBlendFactorSrcAlphaSaturated) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
uint8_t f = std::min(color.a, static_cast<uint8_t>(255 - base.a));
|
|
RGBA8 fac(f, f, f, 255);
|
|
RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckSrcBlendFactor(base, dawn::BlendFactor::SrcAlphaSaturated,
|
|
dawn::BlendFactor::SrcAlphaSaturated, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, SrcBlendFactorBlendColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(
|
|
kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) {
|
|
auto triangleSpec = TriangleSpec({{color}, {{0.2f, 0.4f, 0.6f, 0.8f}}});
|
|
RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, triangleSpec.blendFactor);
|
|
return std::make_pair(triangleSpec, expected);
|
|
});
|
|
CheckSrcBlendFactor(base, dawn::BlendFactor::BlendColor, dawn::BlendFactor::BlendColor, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, SrcBlendFactorOneMinusBlendColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
auto triangleSpec = TriangleSpec({{color}, {{0.2f, 0.4f, 0.6f, 0.8f}}});
|
|
std::array<float, 4> f = {{0.8f, 0.6f, 0.4f, 0.2f}};
|
|
RGBA8 expected = base + mix(RGBA8(0, 0, 0, 0), color, f);
|
|
return std::make_pair(triangleSpec, expected);
|
|
});
|
|
CheckSrcBlendFactor(base, dawn::BlendFactor::OneMinusBlendColor,
|
|
dawn::BlendFactor::OneMinusBlendColor, tests);
|
|
}
|
|
|
|
// The following tests check that the Destination blend factor works
|
|
TEST_P(ColorStateTest, DstBlendFactorZero) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(
|
|
kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) { return std::make_pair(TriangleSpec({{color}}), color); });
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::Zero, dawn::BlendFactor::Zero, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorOne) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(
|
|
kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) { return std::make_pair(TriangleSpec({{color}}), base + color); });
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::One, dawn::BlendFactor::One, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorSrcColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac = color;
|
|
fac.a = 0;
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::SrcColor, dawn::BlendFactor::Zero, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorOneMinusSrcColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac = RGBA8(255, 255, 255, 255) - color;
|
|
fac.a = 0;
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::OneMinusSrcColor, dawn::BlendFactor::Zero, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorSrcAlpha) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac(color.a, color.a, color.a, color.a);
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::SrcAlpha, dawn::BlendFactor::SrcAlpha, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorOneMinusSrcAlpha) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(
|
|
kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) {
|
|
RGBA8 fac = RGBA8(255, 255, 255, 255) - RGBA8(color.a, color.a, color.a, color.a);
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::OneMinusSrcAlpha,
|
|
dawn::BlendFactor::OneMinusSrcAlpha, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorDstColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac = base;
|
|
fac.a = 0;
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::DstColor, dawn::BlendFactor::Zero, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorOneMinusDstColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac = RGBA8(255, 255, 255, 255) - base;
|
|
fac.a = 0;
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::OneMinusDstColor, dawn::BlendFactor::Zero, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorDstAlpha) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
RGBA8 fac(base.a, base.a, base.a, base.a);
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::DstAlpha, dawn::BlendFactor::DstAlpha, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorOneMinusDstAlpha) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(
|
|
kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) {
|
|
RGBA8 fac = RGBA8(255, 255, 255, 255) - RGBA8(base.a, base.a, base.a, base.a);
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::OneMinusDstAlpha,
|
|
dawn::BlendFactor::OneMinusDstAlpha, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorSrcAlphaSaturated) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
uint8_t f = std::min(color.a, static_cast<uint8_t>(255 - base.a));
|
|
RGBA8 fac(f, f, f, 255);
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, fac);
|
|
return std::make_pair(TriangleSpec({{color}}), expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::SrcAlphaSaturated,
|
|
dawn::BlendFactor::SrcAlphaSaturated, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorBlendColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(
|
|
kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) {
|
|
auto triangleSpec = TriangleSpec({{color}, {{0.2f, 0.4f, 0.6f, 0.8f}}});
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, triangleSpec.blendFactor);
|
|
return std::make_pair(triangleSpec, expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::BlendColor, dawn::BlendFactor::BlendColor, tests);
|
|
}
|
|
|
|
TEST_P(ColorStateTest, DstBlendFactorOneMinusBlendColor) {
|
|
RGBA8 base(32, 64, 128, 192);
|
|
std::vector<std::pair<TriangleSpec, RGBA8>> tests;
|
|
std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests),
|
|
[&](const RGBA8& color) {
|
|
auto triangleSpec = TriangleSpec({{color}, {{0.2f, 0.4f, 0.6f, 0.8f}}});
|
|
std::array<float, 4> f = {{0.8f, 0.6f, 0.4f, 0.2f}};
|
|
RGBA8 expected = color + mix(RGBA8(0, 0, 0, 0), base, f);
|
|
return std::make_pair(triangleSpec, expected);
|
|
});
|
|
CheckDstBlendFactor(base, dawn::BlendFactor::OneMinusBlendColor,
|
|
dawn::BlendFactor::OneMinusBlendColor, tests);
|
|
}
|
|
|
|
// Check that the color write mask works
|
|
TEST_P(ColorStateTest, ColorWriteMask) {
|
|
dawn::BlendDescriptor blend;
|
|
blend.operation = dawn::BlendOperation::Add;
|
|
blend.srcFactor = dawn::BlendFactor::One;
|
|
blend.dstFactor = dawn::BlendFactor::One;
|
|
|
|
dawn::ColorStateDescriptor descriptor;
|
|
descriptor.colorBlend = blend;
|
|
descriptor.alphaBlend = blend;
|
|
{
|
|
// Test single channel color write
|
|
descriptor.writeMask = dawn::ColorWriteMask::Red;
|
|
SetupSingleSourcePipelines(descriptor);
|
|
|
|
RGBA8 base(32, 64, 128, 192);
|
|
for (auto& color : kColors) {
|
|
RGBA8 expected = base + RGBA8(color.r, 0, 0, 0);
|
|
DoSingleSourceTest(base, {color}, expected);
|
|
}
|
|
}
|
|
|
|
{
|
|
// Test multi channel color write
|
|
descriptor.writeMask = dawn::ColorWriteMask::Green | dawn::ColorWriteMask::Alpha;
|
|
SetupSingleSourcePipelines(descriptor);
|
|
|
|
RGBA8 base(32, 64, 128, 192);
|
|
for (auto& color : kColors) {
|
|
RGBA8 expected = base + RGBA8(0, color.g, 0, color.a);
|
|
DoSingleSourceTest(base, {color}, expected);
|
|
}
|
|
}
|
|
|
|
{
|
|
// Test no channel color write
|
|
descriptor.writeMask = dawn::ColorWriteMask::None;
|
|
SetupSingleSourcePipelines(descriptor);
|
|
|
|
RGBA8 base(32, 64, 128, 192);
|
|
for (auto& color : kColors) {
|
|
DoSingleSourceTest(base, {color}, base);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check that the color write mask works when blending is disabled
|
|
TEST_P(ColorStateTest, ColorWriteMaskBlendingDisabled) {
|
|
{
|
|
dawn::BlendDescriptor blend;
|
|
blend.operation = dawn::BlendOperation::Add;
|
|
blend.srcFactor = dawn::BlendFactor::One;
|
|
blend.dstFactor = dawn::BlendFactor::Zero;
|
|
dawn::ColorStateDescriptor descriptor;
|
|
descriptor.alphaBlend = blend;
|
|
descriptor.colorBlend = blend;
|
|
|
|
descriptor.writeMask = dawn::ColorWriteMask::Red;
|
|
SetupSingleSourcePipelines(descriptor);
|
|
|
|
RGBA8 base(32, 64, 128, 192);
|
|
RGBA8 expected(32, 0, 0, 0);
|
|
|
|
dawn::CommandEncoder encoder = device.CreateCommandEncoder();
|
|
{
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
|
|
pass.SetPipeline(testPipeline);
|
|
pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({{base}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.EndPass();
|
|
}
|
|
|
|
dawn::CommandBuffer commands = encoder.Finish();
|
|
queue.Submit(1, &commands);
|
|
EXPECT_PIXEL_RGBA8_EQ(expected, renderPass.color, kRTSize / 2, kRTSize / 2);
|
|
}
|
|
}
|
|
|
|
// Test that independent color states on render targets works
|
|
TEST_P(ColorStateTest, IndependentColorState) {
|
|
DAWN_SKIP_TEST_IF(IsWindows() && IsVulkan() && IsIntel());
|
|
|
|
std::array<dawn::Texture, 4> renderTargets;
|
|
std::array<dawn::TextureView, 4> renderTargetViews;
|
|
|
|
dawn::TextureDescriptor descriptor;
|
|
descriptor.dimension = dawn::TextureDimension::e2D;
|
|
descriptor.size.width = kRTSize;
|
|
descriptor.size.height = kRTSize;
|
|
descriptor.size.depth = 1;
|
|
descriptor.arrayLayerCount = 1;
|
|
descriptor.sampleCount = 1;
|
|
descriptor.format = dawn::TextureFormat::RGBA8Unorm;
|
|
descriptor.mipLevelCount = 1;
|
|
descriptor.usage = dawn::TextureUsageBit::OutputAttachment | dawn::TextureUsageBit::CopySrc;
|
|
|
|
for (uint32_t i = 0; i < 4; ++i) {
|
|
renderTargets[i] = device.CreateTexture(&descriptor);
|
|
renderTargetViews[i] = renderTargets[i].CreateDefaultView();
|
|
}
|
|
|
|
utils::ComboRenderPassDescriptor renderPass({renderTargetViews[0], renderTargetViews[1],
|
|
renderTargetViews[2], renderTargetViews[3]});
|
|
|
|
dawn::ShaderModule fsModule =
|
|
utils::CreateShaderModule(device, utils::ShaderStage::Fragment, R"(
|
|
#version 450
|
|
layout(set = 0, binding = 0) uniform myBlock {
|
|
vec4 color0;
|
|
vec4 color1;
|
|
vec4 color2;
|
|
vec4 color3;
|
|
} myUbo;
|
|
|
|
layout(location = 0) out vec4 fragColor0;
|
|
layout(location = 1) out vec4 fragColor1;
|
|
layout(location = 2) out vec4 fragColor2;
|
|
layout(location = 3) out vec4 fragColor3;
|
|
|
|
void main() {
|
|
fragColor0 = myUbo.color0;
|
|
fragColor1 = myUbo.color1;
|
|
fragColor2 = myUbo.color2;
|
|
fragColor3 = myUbo.color3;
|
|
}
|
|
)");
|
|
|
|
utils::ComboRenderPipelineDescriptor baseDescriptor(device);
|
|
baseDescriptor.layout = pipelineLayout;
|
|
baseDescriptor.cVertexStage.module = vsModule;
|
|
baseDescriptor.cFragmentStage.module = fsModule;
|
|
baseDescriptor.colorStateCount = 4;
|
|
|
|
basePipeline = device.CreateRenderPipeline(&baseDescriptor);
|
|
|
|
utils::ComboRenderPipelineDescriptor testDescriptor(device);
|
|
testDescriptor.layout = pipelineLayout;
|
|
testDescriptor.cVertexStage.module = vsModule;
|
|
testDescriptor.cFragmentStage.module = fsModule;
|
|
testDescriptor.colorStateCount = 4;
|
|
|
|
// set color states
|
|
dawn::BlendDescriptor blend1;
|
|
blend1.operation = dawn::BlendOperation::Add;
|
|
blend1.srcFactor = dawn::BlendFactor::One;
|
|
blend1.dstFactor = dawn::BlendFactor::One;
|
|
|
|
dawn::BlendDescriptor blend2;
|
|
blend2.operation = dawn::BlendOperation::Subtract;
|
|
blend2.srcFactor = dawn::BlendFactor::One;
|
|
blend2.dstFactor = dawn::BlendFactor::One;
|
|
|
|
dawn::BlendDescriptor blend3;
|
|
blend3.operation = dawn::BlendOperation::Min;
|
|
blend3.srcFactor = dawn::BlendFactor::One;
|
|
blend3.dstFactor = dawn::BlendFactor::One;
|
|
|
|
testDescriptor.cColorStates[0]->colorBlend = blend1;
|
|
testDescriptor.cColorStates[0]->alphaBlend = blend1;
|
|
|
|
testDescriptor.cColorStates[1]->colorBlend = blend2;
|
|
testDescriptor.cColorStates[1]->alphaBlend = blend2;
|
|
|
|
testDescriptor.cColorStates[3]->colorBlend = blend3;
|
|
testDescriptor.cColorStates[3]->alphaBlend = blend3;
|
|
|
|
testPipeline = device.CreateRenderPipeline(&testDescriptor);
|
|
|
|
for (unsigned int c = 0; c < kColors.size(); ++c) {
|
|
RGBA8 base = kColors[((c + 31) * 29) % kColors.size()];
|
|
RGBA8 color0 = kColors[((c + 19) * 13) % kColors.size()];
|
|
RGBA8 color1 = kColors[((c + 11) * 43) % kColors.size()];
|
|
RGBA8 color2 = kColors[((c + 7) * 3) % kColors.size()];
|
|
RGBA8 color3 = kColors[((c + 13) * 71) % kColors.size()];
|
|
|
|
RGBA8 expected0 = color0 + base;
|
|
RGBA8 expected1 = color1 - base;
|
|
RGBA8 expected2 = color2;
|
|
RGBA8 expected3 = min(color3, base);
|
|
|
|
dawn::CommandEncoder encoder = device.CreateCommandEncoder();
|
|
{
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
|
|
pass.SetPipeline(basePipeline);
|
|
pass.SetBindGroup(
|
|
0, MakeBindGroupForColors(std::array<RGBA8, 4>({{base, base, base, base}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
|
|
pass.SetPipeline(testPipeline);
|
|
pass.SetBindGroup(0, MakeBindGroupForColors(
|
|
std::array<RGBA8, 4>({{color0, color1, color2, color3}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.EndPass();
|
|
}
|
|
|
|
dawn::CommandBuffer commands = encoder.Finish();
|
|
queue.Submit(1, &commands);
|
|
|
|
EXPECT_PIXEL_RGBA8_EQ(expected0, renderTargets[0], kRTSize / 2, kRTSize / 2)
|
|
<< "Attachment slot 0 should have been " << color0 << " + " << base << " = "
|
|
<< expected0;
|
|
EXPECT_PIXEL_RGBA8_EQ(expected1, renderTargets[1], kRTSize / 2, kRTSize / 2)
|
|
<< "Attachment slot 1 should have been " << color1 << " - " << base << " = "
|
|
<< expected1;
|
|
EXPECT_PIXEL_RGBA8_EQ(expected2, renderTargets[2], kRTSize / 2, kRTSize / 2)
|
|
<< "Attachment slot 2 should have been " << color2 << " = " << expected2
|
|
<< "(no blending)";
|
|
EXPECT_PIXEL_RGBA8_EQ(expected3, renderTargets[3], kRTSize / 2, kRTSize / 2)
|
|
<< "Attachment slot 3 should have been min(" << color3 << ", " << base
|
|
<< ") = " << expected3;
|
|
}
|
|
}
|
|
|
|
// Test that the default blend color is correctly set at the beginning of every subpass
|
|
TEST_P(ColorStateTest, DefaultBlendColor) {
|
|
dawn::ShaderModule fsModule =
|
|
utils::CreateShaderModule(device, utils::ShaderStage::Fragment, R"(
|
|
#version 450
|
|
layout(set = 0, binding = 0) uniform myBlock {
|
|
vec4 color;
|
|
} myUbo;
|
|
|
|
layout(location = 0) out vec4 fragColor;
|
|
|
|
void main() {
|
|
fragColor = myUbo.color;
|
|
}
|
|
)");
|
|
|
|
utils::ComboRenderPipelineDescriptor baseDescriptor(device);
|
|
baseDescriptor.layout = pipelineLayout;
|
|
baseDescriptor.cVertexStage.module = vsModule;
|
|
baseDescriptor.cFragmentStage.module = fsModule;
|
|
baseDescriptor.cColorStates[0]->format = renderPass.colorFormat;
|
|
|
|
basePipeline = device.CreateRenderPipeline(&baseDescriptor);
|
|
|
|
utils::ComboRenderPipelineDescriptor testDescriptor(device);
|
|
testDescriptor.layout = pipelineLayout;
|
|
testDescriptor.cVertexStage.module = vsModule;
|
|
testDescriptor.cFragmentStage.module = fsModule;
|
|
testDescriptor.cColorStates[0]->format = renderPass.colorFormat;
|
|
|
|
dawn::BlendDescriptor blend;
|
|
blend.operation = dawn::BlendOperation::Add;
|
|
blend.srcFactor = dawn::BlendFactor::BlendColor;
|
|
blend.dstFactor = dawn::BlendFactor::One;
|
|
testDescriptor.cColorStates[0]->colorBlend = blend;
|
|
testDescriptor.cColorStates[0]->alphaBlend = blend;
|
|
|
|
testPipeline = device.CreateRenderPipeline(&testDescriptor);
|
|
constexpr dawn::Color kWhite{1.0f, 1.0f, 1.0f, 1.0f};
|
|
|
|
// Check that the initial blend color is (0,0,0,0)
|
|
{
|
|
dawn::CommandEncoder encoder = device.CreateCommandEncoder();
|
|
{
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
|
|
pass.SetPipeline(basePipeline);
|
|
pass.SetBindGroup(0,
|
|
MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(0, 0, 0, 0)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.SetPipeline(testPipeline);
|
|
pass.SetBindGroup(
|
|
0, MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(255, 255, 255, 255)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.EndPass();
|
|
}
|
|
|
|
dawn::CommandBuffer commands = encoder.Finish();
|
|
queue.Submit(1, &commands);
|
|
|
|
EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, kRTSize / 2, kRTSize / 2);
|
|
}
|
|
|
|
// Check that setting the blend color works
|
|
{
|
|
dawn::CommandEncoder encoder = device.CreateCommandEncoder();
|
|
{
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
|
|
pass.SetPipeline(basePipeline);
|
|
pass.SetBindGroup(0,
|
|
MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(0, 0, 0, 0)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.SetPipeline(testPipeline);
|
|
pass.SetBlendColor(&kWhite);
|
|
pass.SetBindGroup(
|
|
0, MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(255, 255, 255, 255)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.EndPass();
|
|
}
|
|
|
|
dawn::CommandBuffer commands = encoder.Finish();
|
|
queue.Submit(1, &commands);
|
|
|
|
EXPECT_PIXEL_RGBA8_EQ(RGBA8(255, 255, 255, 255), renderPass.color, kRTSize / 2,
|
|
kRTSize / 2);
|
|
}
|
|
|
|
// Check that the blend color is not inherited between render passes
|
|
{
|
|
dawn::CommandEncoder encoder = device.CreateCommandEncoder();
|
|
{
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
|
|
pass.SetPipeline(basePipeline);
|
|
pass.SetBindGroup(0,
|
|
MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(0, 0, 0, 0)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.SetPipeline(testPipeline);
|
|
pass.SetBlendColor(&kWhite);
|
|
pass.SetBindGroup(
|
|
0, MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(255, 255, 255, 255)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.EndPass();
|
|
}
|
|
{
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
|
|
pass.SetPipeline(basePipeline);
|
|
pass.SetBindGroup(0,
|
|
MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(0, 0, 0, 0)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.SetPipeline(testPipeline);
|
|
pass.SetBindGroup(
|
|
0, MakeBindGroupForColors(std::array<RGBA8, 1>({{RGBA8(255, 255, 255, 255)}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
pass.EndPass();
|
|
}
|
|
|
|
dawn::CommandBuffer commands = encoder.Finish();
|
|
queue.Submit(1, &commands);
|
|
|
|
EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, kRTSize / 2, kRTSize / 2);
|
|
}
|
|
}
|
|
|
|
// This tests a problem in the OpenGL backend where a previous color write mask
|
|
// persisted and prevented a render pass loadOp from fully clearing the output
|
|
// attachment.
|
|
TEST_P(ColorStateTest, ColorWriteMaskDoesNotAffectRenderPassLoadOpClear) {
|
|
dawn::ShaderModule fsModule =
|
|
utils::CreateShaderModule(device, utils::ShaderStage::Fragment, R"(
|
|
#version 450
|
|
layout(set = 0, binding = 0) uniform myBlock {
|
|
vec4 color;
|
|
} myUbo;
|
|
|
|
layout(location = 0) out vec4 fragColor;
|
|
|
|
void main() {
|
|
fragColor = myUbo.color;
|
|
}
|
|
)");
|
|
|
|
utils::ComboRenderPipelineDescriptor baseDescriptor(device);
|
|
baseDescriptor.layout = pipelineLayout;
|
|
baseDescriptor.cVertexStage.module = vsModule;
|
|
baseDescriptor.cFragmentStage.module = fsModule;
|
|
baseDescriptor.cColorStates[0]->format = renderPass.colorFormat;
|
|
|
|
basePipeline = device.CreateRenderPipeline(&baseDescriptor);
|
|
|
|
utils::ComboRenderPipelineDescriptor testDescriptor(device);
|
|
testDescriptor.layout = pipelineLayout;
|
|
testDescriptor.cVertexStage.module = vsModule;
|
|
testDescriptor.cFragmentStage.module = fsModule;
|
|
testDescriptor.cColorStates[0]->format = renderPass.colorFormat;
|
|
testDescriptor.cColorStates[0]->writeMask = dawn::ColorWriteMask::Red;
|
|
|
|
testPipeline = device.CreateRenderPipeline(&testDescriptor);
|
|
|
|
RGBA8 base(32, 64, 128, 192);
|
|
RGBA8 expected(0, 0, 0, 0);
|
|
|
|
dawn::CommandEncoder encoder = device.CreateCommandEncoder();
|
|
{
|
|
// Clear the output attachment to |base|
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
|
|
pass.SetPipeline(basePipeline);
|
|
pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({{base}})), 0, nullptr);
|
|
pass.Draw(3, 1, 0, 0);
|
|
|
|
// Set a pipeline that will dirty the color write mask
|
|
pass.SetPipeline(testPipeline);
|
|
pass.EndPass();
|
|
}
|
|
{
|
|
// This renderpass' loadOp should clear all channels of the output attachment
|
|
dawn::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass.renderPassInfo);
|
|
pass.EndPass();
|
|
}
|
|
dawn::CommandBuffer commands = encoder.Finish();
|
|
queue.Submit(1, &commands);
|
|
|
|
EXPECT_PIXEL_RGBA8_EQ(expected, renderPass.color, kRTSize / 2, kRTSize / 2);
|
|
}
|
|
|
|
DAWN_INSTANTIATE_TEST(ColorStateTest, D3D12Backend, MetalBackend, OpenGLBackend, VulkanBackend);
|