| // Copyright 2017 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <array> |
| #include <cmath> |
| |
| #include "tests/DawnTest.h" |
| |
| #include "common/Assert.h" |
| #include "common/Constants.h" |
| #include "utils/DawnHelpers.h" |
| |
| constexpr static unsigned int kRTSize = 64; |
| |
| class BlendStateTest : public DawnTest { |
| protected: |
| void SetUp() override { |
| DawnTest::SetUp(); |
| |
| vsModule = utils::CreateShaderModule(device, dawn::ShaderStage::Vertex, R"( |
| #version 450 |
| void main() { |
| const vec2 pos[3] = vec2[3](vec2(-1.f, -1.f), vec2(3.f, -1.f), vec2(-1.f, 3.f)); |
| gl_Position = vec4(pos[gl_VertexIndex], 0.f, 1.f); |
| } |
| )"); |
| |
| bindGroupLayout = utils::MakeBindGroupLayout( |
| device, { |
| {0, dawn::ShaderStageBit::Fragment, dawn::BindingType::UniformBuffer}, |
| }); |
| |
| pipelineLayout = utils::MakeBasicPipelineLayout(device, &bindGroupLayout); |
| |
| renderPass = utils::CreateBasicRenderPass(device, kRTSize, kRTSize); |
| } |
| |
| struct TriangleSpec { |
| RGBA8 color; |
| std::array<float, 4> blendFactor = {}; |
| }; |
| |
| // Set up basePipeline and testPipeline. testPipeline has the given blend state on the first attachment. basePipeline has no blending |
| void SetupSingleSourcePipelines(const dawn::BlendState &blendState) { |
| dawn::ShaderModule fsModule = utils::CreateShaderModule(device, dawn::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; |
| } |
| )"); |
| |
| basePipeline = device.CreateRenderPipelineBuilder() |
| .SetColorAttachmentFormat(0, renderPass.colorFormat) |
| .SetLayout(pipelineLayout) |
| .SetStage(dawn::ShaderStage::Vertex, vsModule, "main") |
| .SetStage(dawn::ShaderStage::Fragment, fsModule, "main") |
| .GetResult(); |
| |
| testPipeline = device.CreateRenderPipelineBuilder() |
| .SetColorAttachmentFormat(0, renderPass.colorFormat) |
| .SetLayout(pipelineLayout) |
| .SetStage(dawn::ShaderStage::Vertex, vsModule, "main") |
| .SetStage(dawn::ShaderStage::Fragment, fsModule, "main") |
| .SetColorAttachmentBlendState(0, blendState) |
| .GetResult(); |
| } |
| |
| // Create a bind group to set the colors as a uniform buffer |
| template <size_t N> |
| dawn::BindGroup MakeBindGroupForColors(std::array<RGBA8, N> colors) { |
| std::array<float, 4 * N> data; |
| for (unsigned int i = 0; i < N; ++i) { |
| data[4 * i + 0] = static_cast<float>(colors[i].r) / 255.f; |
| data[4 * i + 1] = static_cast<float>(colors[i].g) / 255.f; |
| data[4 * i + 2] = static_cast<float>(colors[i].b) / 255.f; |
| data[4 * i + 3] = static_cast<float>(colors[i].a) / 255.f; |
| } |
| |
| uint32_t bufferSize = static_cast<uint32_t>(4 * N * sizeof(float)); |
| |
| dawn::Buffer buffer = utils::CreateBufferFromData(device, &data, bufferSize, dawn::BufferUsageBit::Uniform); |
| |
| dawn::BufferView view = buffer.CreateBufferViewBuilder() |
| .SetExtent(0, bufferSize) |
| .GetResult(); |
| |
| return device.CreateBindGroupBuilder() |
| .SetLayout(bindGroupLayout) |
| .SetBufferViews(0, 1, &view) |
| .GetResult(); |
| } |
| |
| // Test that after drawing a triangle with the base color, and then the given triangle spec, the color is as expected |
| void DoSingleSourceTest(RGBA8 base, const TriangleSpec& triangle, const RGBA8& expected) { |
| dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder(); |
| { |
| dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo); |
| // First use the base pipeline to draw a triangle with no blending |
| pass.SetRenderPipeline(basePipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { base } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| |
| // Then use the test pipeline to draw the test triangle with blending |
| pass.SetRenderPipeline(testPipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { triangle.color } }))); |
| pass.SetBlendColor(triangle.blendFactor[0], triangle.blendFactor[1], triangle.blendFactor[2], triangle.blendFactor[3]); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.EndPass(); |
| } |
| |
| dawn::CommandBuffer commands = builder.GetResult(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(expected, renderPass.color, kRTSize / 2, kRTSize / 2); |
| } |
| |
| // Given a vector of tests where each element is <testColor, expectedColor>, check that all expectations are true for the given blend operation |
| void CheckBlendOperation(RGBA8 base, dawn::BlendOperation operation, std::vector<std::pair<RGBA8, RGBA8>> tests) { |
| dawn::BlendDescriptor blend; |
| blend.operation = operation; |
| blend.srcFactor = dawn::BlendFactor::One; |
| blend.dstFactor = dawn::BlendFactor::One; |
| |
| dawn::BlendState blendState = device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend) |
| .SetAlphaBlend(&blend) |
| .GetResult(); |
| |
| SetupSingleSourcePipelines(blendState); |
| |
| for (const auto& test : tests) { |
| DoSingleSourceTest(base, { test.first }, test.second); |
| } |
| } |
| |
| // Given a vector of tests where each element is <testSpec, expectedColor>, check that all expectations are true for the given blend factors |
| void CheckBlendFactor(RGBA8 base, dawn::BlendFactor colorSrcFactor, dawn::BlendFactor colorDstFactor, dawn::BlendFactor alphaSrcFactor, dawn::BlendFactor alphaDstFactor, std::vector<std::pair<TriangleSpec, RGBA8>> tests) { |
| dawn::BlendDescriptor colorBlend; |
| colorBlend.operation = dawn::BlendOperation::Add; |
| colorBlend.srcFactor = colorSrcFactor; |
| colorBlend.dstFactor = colorDstFactor; |
| |
| dawn::BlendDescriptor alphaBlend; |
| alphaBlend.operation = dawn::BlendOperation::Add; |
| alphaBlend.srcFactor = alphaSrcFactor; |
| alphaBlend.dstFactor = alphaDstFactor; |
| |
| dawn::BlendState blendState = device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&colorBlend) |
| .SetAlphaBlend(&alphaBlend) |
| .GetResult(); |
| |
| SetupSingleSourcePipelines(blendState); |
| |
| for (const auto& test : tests) { |
| DoSingleSourceTest(base, test.first, test.second); |
| } |
| } |
| |
| void CheckSrcBlendFactor(RGBA8 base, dawn::BlendFactor colorFactor, dawn::BlendFactor alphaFactor, std::vector<std::pair<TriangleSpec, RGBA8>> tests) { |
| CheckBlendFactor(base, colorFactor, dawn::BlendFactor::One, alphaFactor, dawn::BlendFactor::One, tests); |
| } |
| |
| void CheckDstBlendFactor(RGBA8 base, dawn::BlendFactor colorFactor, dawn::BlendFactor alphaFactor, std::vector<std::pair<TriangleSpec, RGBA8>> tests) { |
| CheckBlendFactor(base, dawn::BlendFactor::One, colorFactor, dawn::BlendFactor::One, alphaFactor, tests); |
| } |
| |
| utils::BasicRenderPass renderPass; |
| dawn::RenderPipeline basePipeline; |
| dawn::RenderPipeline testPipeline; |
| dawn::ShaderModule vsModule; |
| dawn::BindGroupLayout bindGroupLayout; |
| dawn::PipelineLayout pipelineLayout; |
| }; |
| |
| namespace { |
| // Add two colors and clamp |
| constexpr RGBA8 operator+(const RGBA8& col1, const RGBA8& col2) { |
| int r = static_cast<int>(col1.r) + static_cast<int>(col2.r); |
| int g = static_cast<int>(col1.g) + static_cast<int>(col2.g); |
| int b = static_cast<int>(col1.b) + static_cast<int>(col2.b); |
| int a = static_cast<int>(col1.a) + static_cast<int>(col2.a); |
| r = (r > 255 ? 255 : (r < 0 ? 0 : r)); |
| g = (g > 255 ? 255 : (g < 0 ? 0 : g)); |
| b = (b > 255 ? 255 : (b < 0 ? 0 : b)); |
| a = (a > 255 ? 255 : (a < 0 ? 0 : a)); |
| |
| return RGBA8(static_cast<uint8_t>(r), static_cast<uint8_t>(g), static_cast<uint8_t>(b), static_cast<uint8_t>(a)); |
| } |
| |
| // Subtract two colors and clamp |
| constexpr RGBA8 operator-(const RGBA8& col1, const RGBA8& col2) { |
| int r = static_cast<int>(col1.r) - static_cast<int>(col2.r); |
| int g = static_cast<int>(col1.g) - static_cast<int>(col2.g); |
| int b = static_cast<int>(col1.b) - static_cast<int>(col2.b); |
| int a = static_cast<int>(col1.a) - static_cast<int>(col2.a); |
| r = (r > 255 ? 255 : (r < 0 ? 0 : r)); |
| g = (g > 255 ? 255 : (g < 0 ? 0 : g)); |
| b = (b > 255 ? 255 : (b < 0 ? 0 : b)); |
| a = (a > 255 ? 255 : (a < 0 ? 0 : a)); |
| |
| return RGBA8(static_cast<uint8_t>(r), static_cast<uint8_t>(g), static_cast<uint8_t>(b), static_cast<uint8_t>(a)); |
| } |
| |
| // Get the component-wise minimum of two colors |
| RGBA8 min(const RGBA8& col1, const RGBA8& col2) { |
| return RGBA8( |
| std::min(col1.r, col2.r), |
| std::min(col1.g, col2.g), |
| std::min(col1.b, col2.b), |
| std::min(col1.a, col2.a) |
| ); |
| } |
| |
| // Get the component-wise maximum of two colors |
| RGBA8 max(const RGBA8& col1, const RGBA8& col2) { |
| return RGBA8( |
| std::max(col1.r, col2.r), |
| std::max(col1.g, col2.g), |
| std::max(col1.b, col2.b), |
| std::max(col1.a, col2.a) |
| ); |
| } |
| |
| // Blend two RGBA8 color values parameterized by the provided factors in the range [0.f, 1.f] |
| RGBA8 mix(const RGBA8& col1, const RGBA8& col2, std::array<float, 4> fac) { |
| float r = static_cast<float>(col1.r) * (1.f - fac[0]) + static_cast<float>(col2.r) * fac[0]; |
| float g = static_cast<float>(col1.g) * (1.f - fac[1]) + static_cast<float>(col2.g) * fac[1]; |
| float b = static_cast<float>(col1.b) * (1.f - fac[2]) + static_cast<float>(col2.b) * fac[2]; |
| float a = static_cast<float>(col1.a) * (1.f - fac[3]) + static_cast<float>(col2.a) * fac[3]; |
| |
| return RGBA8({ static_cast<uint8_t>(std::round(r)), static_cast<uint8_t>(std::round(g)), static_cast<uint8_t>(std::round(b)), static_cast<uint8_t>(std::round(a)) }); |
| } |
| |
| // Blend two RGBA8 color values parameterized by the provided RGBA8 factor |
| RGBA8 mix(const RGBA8& col1, const RGBA8& col2, const RGBA8& fac) { |
| std::array<float, 4> f = { { |
| static_cast<float>(fac.r) / 255.f, |
| static_cast<float>(fac.g) / 255.f, |
| static_cast<float>(fac.b) / 255.f, |
| static_cast<float>(fac.a) / 255.f, |
| } }; |
| return mix(col1, col2, f); |
| } |
| |
| constexpr std::array<RGBA8, 8> kColors = { { |
| // check operations over multiple channels |
| RGBA8(64,0,0,0), |
| RGBA8(0,64,0,0), |
| RGBA8(64,0,32,0), |
| RGBA8(0,64,32,0), |
| RGBA8(128,0,128,128), |
| RGBA8(0,128,128,128), |
| |
| // check cases that may cause overflow |
| RGBA8(0,0,0,0), |
| RGBA8(255,255,255,255), |
| } }; |
| } |
| |
| // Test compilation and usage of the fixture |
| TEST_P(BlendStateTest, Basic) { |
| dawn::BlendState blendState = device.CreateBlendStateBuilder().GetResult(); |
| SetupSingleSourcePipelines(blendState); |
| |
| DoSingleSourceTest(RGBA8(0, 0, 0, 0), { RGBA8(255, 0, 0, 0) }, RGBA8(255, 0, 0, 0)); |
| } |
| |
| // The following tests check test that the blend operation works |
| TEST_P(BlendStateTest, BlendOperationAdd) { |
| RGBA8 base(32, 64, 128, 192); |
| std::vector<std::pair<RGBA8, RGBA8>> tests; |
| std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) { |
| return std::make_pair(color, base + color); |
| }); |
| CheckBlendOperation(base, dawn::BlendOperation::Add, tests); |
| } |
| |
| TEST_P(BlendStateTest, BlendOperationSubtract) { |
| RGBA8 base(32, 64, 128, 192); |
| std::vector<std::pair<RGBA8, RGBA8>> tests; |
| std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) { |
| return std::make_pair(color, color - base); |
| }); |
| CheckBlendOperation(base, dawn::BlendOperation::Subtract, tests); |
| } |
| |
| TEST_P(BlendStateTest, BlendOperationReverseSubtract) { |
| RGBA8 base(32, 64, 128, 192); |
| std::vector<std::pair<RGBA8, RGBA8>> tests; |
| std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) { |
| return std::make_pair(color, base - color); |
| }); |
| CheckBlendOperation(base, dawn::BlendOperation::ReverseSubtract, tests); |
| } |
| |
| TEST_P(BlendStateTest, BlendOperationMin) { |
| RGBA8 base(32, 64, 128, 192); |
| std::vector<std::pair<RGBA8, RGBA8>> tests; |
| std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) { |
| return std::make_pair(color, min(base, color)); |
| }); |
| CheckBlendOperation(base, dawn::BlendOperation::Min, tests); |
| } |
| |
| TEST_P(BlendStateTest, BlendOperationMax) { |
| RGBA8 base(32, 64, 128, 192); |
| std::vector<std::pair<RGBA8, RGBA8>> tests; |
| std::transform(kColors.begin(), kColors.end(), std::back_inserter(tests), [&](const RGBA8& color) { |
| return std::make_pair(color, max(base, color)); |
| }); |
| CheckBlendOperation(base, dawn::BlendOperation::Max, tests); |
| } |
| |
| // The following tests check that the Source blend factor works |
| TEST_P(BlendStateTest, SrcBlendFactorZero) { |
| 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); |
| }); |
| CheckSrcBlendFactor(base, dawn::BlendFactor::Zero, dawn::BlendFactor::Zero, tests); |
| } |
| |
| TEST_P(BlendStateTest, SrcBlendFactorOne) { |
| 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); |
| }); |
| CheckSrcBlendFactor(base, dawn::BlendFactor::One, dawn::BlendFactor::One, tests); |
| } |
| |
| TEST_P(BlendStateTest, SrcBlendFactorSrcColor) { |
| 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 = base + mix(RGBA8(0, 0, 0, 0), color, fac); |
| return std::make_pair(TriangleSpec({ { color } }), expected); |
| }); |
| CheckSrcBlendFactor(base, dawn::BlendFactor::SrcColor, dawn::BlendFactor::Zero, tests); |
| } |
| |
| TEST_P(BlendStateTest, SrcBlendFactorOneMinusSrcColor) { |
| 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 = base + mix(RGBA8(0, 0, 0, 0), color, fac); |
| return std::make_pair(TriangleSpec({ { color } }), expected); |
| }); |
| CheckSrcBlendFactor(base, dawn::BlendFactor::OneMinusSrcColor, dawn::BlendFactor::Zero, tests); |
| } |
| |
| TEST_P(BlendStateTest, SrcBlendFactorSrcAlpha) { |
| 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 = base + mix(RGBA8(0, 0, 0, 0), color, fac); |
| return std::make_pair(TriangleSpec({ { color } }), expected); |
| }); |
| CheckSrcBlendFactor(base, dawn::BlendFactor::SrcAlpha, dawn::BlendFactor::SrcAlpha, tests); |
| } |
| |
| TEST_P(BlendStateTest, SrcBlendFactorOneMinusSrcAlpha) { |
| 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 = base + mix(RGBA8(0, 0, 0, 0), color, fac); |
| return std::make_pair(TriangleSpec({ { color } }), expected); |
| }); |
| CheckSrcBlendFactor(base, dawn::BlendFactor::OneMinusSrcAlpha, dawn::BlendFactor::OneMinusSrcAlpha, tests); |
| } |
| |
| TEST_P(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, 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(BlendStateTest, ColorWriteMask) { |
| dawn::BlendDescriptor blend; |
| blend.operation = dawn::BlendOperation::Add; |
| blend.srcFactor = dawn::BlendFactor::One; |
| blend.dstFactor = dawn::BlendFactor::One; |
| |
| { |
| // Test single channel color write |
| dawn::BlendState blendState = device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend) |
| .SetAlphaBlend(&blend) |
| .SetColorWriteMask(dawn::ColorWriteMask::Red) |
| .GetResult(); |
| SetupSingleSourcePipelines(blendState); |
| |
| 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 |
| dawn::BlendState blendState = device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend) |
| .SetAlphaBlend(&blend) |
| .SetColorWriteMask(dawn::ColorWriteMask::Green | dawn::ColorWriteMask::Alpha) |
| .GetResult(); |
| SetupSingleSourcePipelines(blendState); |
| |
| 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 |
| dawn::BlendState blendState = device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend) |
| .SetAlphaBlend(&blend) |
| .SetColorWriteMask(dawn::ColorWriteMask::None) |
| .GetResult(); |
| SetupSingleSourcePipelines(blendState); |
| |
| 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(BlendStateTest, ColorWriteMaskBlendingDisabled) { |
| { |
| dawn::BlendState blendState = device.CreateBlendStateBuilder() |
| .SetBlendEnabled(false) |
| .SetColorWriteMask(dawn::ColorWriteMask::Red) |
| .GetResult(); |
| SetupSingleSourcePipelines(blendState); |
| |
| RGBA8 base(32, 64, 128, 192); |
| RGBA8 expected(32, 0, 0, 0); |
| |
| dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder(); |
| { |
| dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo); |
| pass.SetRenderPipeline(testPipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { base } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.EndPass(); |
| } |
| |
| dawn::CommandBuffer commands = builder.GetResult(); |
| queue.Submit(1, &commands); |
| EXPECT_PIXEL_RGBA8_EQ(expected, renderPass.color, kRTSize / 2, kRTSize / 2); |
| } |
| } |
| |
| // Test that independent blend states on render targets works |
| TEST_P(BlendStateTest, IndependentBlendState) { |
| 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.arrayLayer = 1; |
| descriptor.format = dawn::TextureFormat::R8G8B8A8Unorm; |
| descriptor.levelCount = 1; |
| descriptor.usage = dawn::TextureUsageBit::OutputAttachment | dawn::TextureUsageBit::TransferSrc; |
| |
| for (uint32_t i = 0; i < 4; ++i) { |
| renderTargets[i] = device.CreateTexture(&descriptor); |
| renderTargetViews[i] = renderTargets[i].CreateDefaultTextureView(); |
| } |
| |
| dawn::RenderPassDescriptor renderpass = device.CreateRenderPassDescriptorBuilder() |
| .SetColorAttachment(0, renderTargetViews[0], dawn::LoadOp::Clear) |
| .SetColorAttachment(1, renderTargetViews[1], dawn::LoadOp::Clear) |
| .SetColorAttachment(2, renderTargetViews[2], dawn::LoadOp::Clear) |
| .SetColorAttachment(3, renderTargetViews[3], dawn::LoadOp::Clear) |
| .GetResult(); |
| |
| dawn::ShaderModule fsModule = utils::CreateShaderModule(device, dawn::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; |
| } |
| )"); |
| |
| 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; |
| |
| std::array<dawn::BlendState, 3> blendStates = { { |
| device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend1) |
| .SetAlphaBlend(&blend1) |
| .GetResult(), |
| device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend2) |
| .SetAlphaBlend(&blend2) |
| .GetResult(), |
| device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend3) |
| .SetAlphaBlend(&blend3) |
| .GetResult(), |
| } }; |
| |
| basePipeline = device.CreateRenderPipelineBuilder() |
| .SetColorAttachmentFormat(0, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetColorAttachmentFormat(1, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetColorAttachmentFormat(2, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetColorAttachmentFormat(3, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetLayout(pipelineLayout) |
| .SetStage(dawn::ShaderStage::Vertex, vsModule, "main") |
| .SetStage(dawn::ShaderStage::Fragment, fsModule, "main") |
| .GetResult(); |
| |
| testPipeline = device.CreateRenderPipelineBuilder() |
| .SetColorAttachmentFormat(0, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetColorAttachmentFormat(1, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetColorAttachmentFormat(2, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetColorAttachmentFormat(3, dawn::TextureFormat::R8G8B8A8Unorm) |
| .SetLayout(pipelineLayout) |
| .SetStage(dawn::ShaderStage::Vertex, vsModule, "main") |
| .SetStage(dawn::ShaderStage::Fragment, fsModule, "main") |
| .SetColorAttachmentBlendState(0, blendStates[0]) |
| .SetColorAttachmentBlendState(1, blendStates[1]) |
| // Blend state not set on third color attachment. It should be default |
| .SetColorAttachmentBlendState(3, blendStates[2]) |
| .GetResult(); |
| |
| |
| 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::CommandBufferBuilder builder = device.CreateCommandBufferBuilder(); |
| { |
| dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderpass); |
| pass.SetRenderPipeline(basePipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 4>({ { base, base, base, base } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| |
| pass.SetRenderPipeline(testPipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 4>({ { color0, color1, color2, color3 } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.EndPass(); |
| } |
| |
| dawn::CommandBuffer commands = builder.GetResult(); |
| 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(BlendStateTest, DefaultBlendColor) { |
| dawn::BlendDescriptor blend; |
| blend.operation = dawn::BlendOperation::Add; |
| blend.srcFactor = dawn::BlendFactor::BlendColor; |
| blend.dstFactor = dawn::BlendFactor::One; |
| |
| dawn::BlendState blendState = device.CreateBlendStateBuilder() |
| .SetBlendEnabled(true) |
| .SetColorBlend(&blend) |
| .SetAlphaBlend(&blend) |
| .GetResult(); |
| |
| dawn::ShaderModule fsModule = utils::CreateShaderModule(device, dawn::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; |
| } |
| )"); |
| |
| basePipeline = device.CreateRenderPipelineBuilder() |
| .SetColorAttachmentFormat(0, renderPass.colorFormat) |
| .SetLayout(pipelineLayout) |
| .SetStage(dawn::ShaderStage::Vertex, vsModule, "main") |
| .SetStage(dawn::ShaderStage::Fragment, fsModule, "main") |
| .GetResult(); |
| |
| testPipeline = device.CreateRenderPipelineBuilder() |
| .SetColorAttachmentFormat(0, renderPass.colorFormat) |
| .SetLayout(pipelineLayout) |
| .SetStage(dawn::ShaderStage::Vertex, vsModule, "main") |
| .SetStage(dawn::ShaderStage::Fragment, fsModule, "main") |
| .SetColorAttachmentBlendState(0, blendState) |
| .GetResult(); |
| |
| // Check that the initial blend color is (0,0,0,0) |
| { |
| dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder(); |
| { |
| dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo); |
| pass.SetRenderPipeline(basePipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(0, 0, 0, 0) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.SetRenderPipeline(testPipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(255, 255, 255, 255) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.EndPass(); |
| } |
| |
| dawn::CommandBuffer commands = builder.GetResult(); |
| 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::CommandBufferBuilder builder = device.CreateCommandBufferBuilder(); |
| { |
| dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo); |
| pass.SetRenderPipeline(basePipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(0, 0, 0, 0) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.SetRenderPipeline(testPipeline); |
| pass.SetBlendColor(1, 1, 1, 1); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(255, 255, 255, 255) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.EndPass(); |
| } |
| |
| dawn::CommandBuffer commands = builder.GetResult(); |
| 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::CommandBufferBuilder builder = device.CreateCommandBufferBuilder(); |
| { |
| dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo); |
| pass.SetRenderPipeline(basePipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(0, 0, 0, 0) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.SetRenderPipeline(testPipeline); |
| pass.SetBlendColor(1, 1, 1, 1); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(255, 255, 255, 255) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.EndPass(); |
| } |
| { |
| dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo); |
| pass.SetRenderPipeline(basePipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(0, 0, 0, 0) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.SetRenderPipeline(testPipeline); |
| pass.SetBindGroup(0, MakeBindGroupForColors(std::array<RGBA8, 1>({ { RGBA8(255, 255, 255, 255) } }))); |
| pass.DrawArrays(3, 1, 0, 0); |
| pass.EndPass(); |
| } |
| |
| dawn::CommandBuffer commands = builder.GetResult(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, kRTSize / 2, kRTSize / 2); |
| } |
| } |
| |
| DAWN_INSTANTIATE_TEST(BlendStateTest, D3D12Backend, MetalBackend, OpenGLBackend, VulkanBackend) |