| // Copyright 2021 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 "dawn/tests/DawnTest.h" |
| #include "dawn/utils/ComboRenderPipelineDescriptor.h" |
| #include "dawn/utils/WGPUHelpers.h" |
| |
| namespace dawn { |
| namespace { |
| |
| wgpu::Texture Create2DTexture(wgpu::Device device, |
| uint32_t width, |
| uint32_t height, |
| wgpu::TextureFormat format, |
| wgpu::TextureUsage usage) { |
| wgpu::TextureDescriptor descriptor; |
| descriptor.dimension = wgpu::TextureDimension::e2D; |
| descriptor.size.width = width; |
| descriptor.size.height = height; |
| descriptor.size.depthOrArrayLayers = 1; |
| descriptor.sampleCount = 1; |
| descriptor.format = format; |
| descriptor.mipLevelCount = 1; |
| descriptor.usage = usage; |
| return device.CreateTexture(&descriptor); |
| } |
| |
| class ExternalTextureTests : public DawnTest { |
| protected: |
| void SetUp() override { |
| DawnTest::SetUp(); |
| |
| vsModule = utils::CreateShaderModule(device, R"( |
| @vertex fn main(@builtin(vertex_index) VertexIndex : u32) -> @builtin(position) vec4f { |
| var positions = array( |
| vec4f(-1.0, 1.0, 0.0, 1.0), |
| vec4f(-1.0, -1.0, 0.0, 1.0), |
| vec4f(1.0, 1.0, 0.0, 1.0), |
| vec4f(1.0, -1.0, 0.0, 1.0), |
| vec4f(-1.0, -1.0, 0.0, 1.0), |
| vec4f(1.0, 1.0, 0.0, 1.0) |
| ); |
| return positions[VertexIndex]; |
| })"); |
| |
| fsSampleExternalTextureModule = utils::CreateShaderModule(device, R"( |
| @group(0) @binding(0) var s : sampler; |
| @group(0) @binding(1) var t : texture_external; |
| |
| @fragment fn main(@builtin(position) FragCoord : vec4f) |
| -> @location(0) vec4f { |
| return textureSampleBaseClampToEdge(t, s, FragCoord.xy / vec2f(4.0, 4.0)); |
| })"); |
| } |
| |
| wgpu::ExternalTextureDescriptor CreateDefaultExternalTextureDescriptor() { |
| wgpu::ExternalTextureDescriptor desc; |
| desc.yuvToRgbConversionMatrix = yuvBT709ToRGBSRGB.yuvToRgbConversionMatrix.data(); |
| desc.gamutConversionMatrix = yuvBT709ToRGBSRGB.gamutConversionMatrix.data(); |
| desc.srcTransferFunctionParameters = yuvBT709ToRGBSRGB.srcTransferFunctionParameters.data(); |
| desc.dstTransferFunctionParameters = yuvBT709ToRGBSRGB.dstTransferFunctionParameters.data(); |
| |
| return desc; |
| } |
| |
| void RenderToSourceTexture(wgpu::ShaderModule fragmentShader, wgpu::Texture texture) { |
| { |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fragmentShader; |
| descriptor.cTargets[0].format = texture.GetFormat(); |
| wgpu::RenderPipeline pipeline1 = device.CreateRenderPipeline(&descriptor); |
| |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::TextureView renderView = texture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline1); |
| pass.Draw(6); |
| pass.End(); |
| } |
| wgpu::CommandBuffer copy = encoder.Finish(); |
| queue.Submit(1, ©); |
| } |
| } |
| |
| static constexpr uint32_t kWidth = 4; |
| static constexpr uint32_t kHeight = 4; |
| static constexpr wgpu::TextureFormat kFormat = wgpu::TextureFormat::RGBA8Unorm; |
| static constexpr wgpu::TextureUsage kSampledUsage = wgpu::TextureUsage::TextureBinding; |
| utils::ColorSpaceConversionInfo yuvBT709ToRGBSRGB = |
| utils::GetYUVBT709ToRGBSRGBColorSpaceConversionInfo(); |
| |
| wgpu::ShaderModule vsModule; |
| wgpu::ShaderModule fsSampleExternalTextureModule; |
| }; |
| |
| TEST_P(ExternalTextureTests, CreateExternalTextureSuccess) { |
| wgpu::Texture texture = Create2DTexture(device, kWidth, kHeight, kFormat, kSampledUsage); |
| |
| // Create a texture view for the external texture |
| wgpu::TextureView view = texture.CreateView(); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = view; |
| externalDesc.visibleOrigin = {0, 0}; |
| externalDesc.visibleSize = {kWidth, kHeight}; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| ASSERT_NE(externalTexture.Get(), nullptr); |
| } |
| |
| TEST_P(ExternalTextureTests, SampleExternalTexture) { |
| // TODO(crbug.com/tint/1774): Tint has an issue compiling shaders that use external textures on |
| // OpenGL/OpenGLES. |
| DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES()); |
| |
| wgpu::Texture sampledTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| wgpu::Texture renderTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::RenderAttachment); |
| |
| // Create a texture view for the external texture |
| wgpu::TextureView externalView = sampledTexture.CreateView(); |
| |
| // Initialize texture with green to ensure it is sampled from later. |
| { |
| utils::ComboRenderPassDescriptor renderPass({externalView}, nullptr); |
| renderPass.cColorAttachments[0].clearValue = {0.0f, 1.0f, 0.0f, 1.0f}; |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| pass.End(); |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| } |
| |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = externalView; |
| externalDesc.visibleOrigin = {0, 0}; |
| externalDesc.visibleSize = {kWidth, kHeight}; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into the |
| // upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(3); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kGreen, renderTexture, 0, 0); |
| } |
| |
| TEST_P(ExternalTextureTests, SampleMultiplanarExternalTexture) { |
| // TODO(crbug.com/tint/1774): Tint has an issue compiling shaders that use external textures on |
| // OpenGL/OpenGLES. |
| DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES()); |
| |
| wgpu::Texture sampledTexturePlane0 = |
| Create2DTexture(device, kWidth, kHeight, wgpu::TextureFormat::R8Unorm, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| wgpu::Texture sampledTexturePlane1 = |
| Create2DTexture(device, kWidth, kHeight, wgpu::TextureFormat::RG8Unorm, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| |
| wgpu::Texture renderTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::RenderAttachment); |
| |
| // Create a texture view for the external texture |
| wgpu::TextureView externalViewPlane0 = sampledTexturePlane0.CreateView(); |
| wgpu::TextureView externalViewPlane1 = sampledTexturePlane1.CreateView(); |
| |
| struct ConversionExpectation { |
| double y; |
| double u; |
| double v; |
| utils::RGBA8 rgba; |
| }; |
| |
| // Conversion expectations for BT.709 YUV source and sRGB destination. |
| std::array<ConversionExpectation, 7> expectations = { |
| {{0.0, .5, .5, utils::RGBA8::kBlack}, |
| {0.2126, 0.4172, 1.0, utils::RGBA8::kRed}, |
| {0.7152, 0.1402, 0.0175, utils::RGBA8::kGreen}, |
| {0.0722, 1.0, 0.4937, utils::RGBA8::kBlue}, |
| {0.6382, 0.3232, 0.6644, {246, 169, 90, 255}}, |
| {0.5423, 0.5323, 0.4222, {120, 162, 169, 255}}, |
| {0.2345, 0.4383, 0.6342, {126, 53, 33, 255}}}}; |
| |
| for (const ConversionExpectation& expectation : expectations) { |
| // Initialize the texture planes with YUV data |
| { |
| utils::ComboRenderPassDescriptor renderPass({externalViewPlane0, externalViewPlane1}, |
| nullptr); |
| renderPass.cColorAttachments[0].clearValue = {expectation.y, 0.0f, 0.0f, 0.0f}; |
| renderPass.cColorAttachments[1].clearValue = {expectation.u, expectation.v, 0.0f, 0.0f}; |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| pass.End(); |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| } |
| |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| // descriptor.layout = utils::MakeBasicPipelineLayout(device, &bgl); |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture views |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = externalViewPlane0; |
| externalDesc.plane1 = externalViewPlane1; |
| externalDesc.visibleOrigin = {0, 0}; |
| externalDesc.visibleSize = {kWidth, kHeight}; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into |
| // the upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(3); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(expectation.rgba, renderTexture, 0, 0); |
| } |
| } |
| |
| // Test draws a green square in the upper left quadrant, a black square in the upper right, a red |
| // square in the lower left and a blue square in the lower right. The image is then sampled as an |
| // external texture and rotated 0, 90, 180, and 270 degrees with and without the y-axis flipped. |
| TEST_P(ExternalTextureTests, RotateAndOrFlipSinglePlane) { |
| // TODO(crbug.com/tint/1774): Tint has an issue compiling shaders that use external textures on |
| // OpenGL/OpenGLES. |
| DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES()); |
| |
| const wgpu::ShaderModule sourceTextureFsModule = utils::CreateShaderModule(device, R"( |
| @fragment fn main(@builtin(position) FragCoord : vec4f) |
| -> @location(0) vec4f { |
| if(FragCoord.y < 2.0 && FragCoord.x < 2.0) { |
| return vec4f(0.0, 1.0, 0.0, 1.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.0, 0.0, 1.0, 1.0); |
| } |
| |
| if(FragCoord.y < 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.0, 0.0, 0.0, 1.0); |
| } |
| |
| return vec4f(1.0, 0.0, 0.0, 1.0); |
| })"); |
| |
| wgpu::Texture sourceTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| |
| RenderToSourceTexture(sourceTextureFsModule, sourceTexture); |
| |
| wgpu::Texture renderTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::RenderAttachment); |
| |
| // Control case to verify flipY and rotation defaults |
| { |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = sourceTexture.CreateView(); |
| externalDesc.visibleOrigin = {0, 0}; |
| externalDesc.visibleSize = {kWidth, kHeight}; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into |
| // the upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(6); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kGreen, renderTexture, 0, 0); |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kBlack, renderTexture, 3, 0); |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kRed, renderTexture, 0, 3); |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kBlue, renderTexture, 3, 3); |
| } |
| |
| struct RotationExpectation { |
| wgpu::ExternalTextureRotation rotation; |
| bool flipY; |
| utils::RGBA8 upperLeftColor; |
| utils::RGBA8 upperRightColor; |
| utils::RGBA8 lowerLeftColor; |
| utils::RGBA8 lowerRightColor; |
| }; |
| |
| std::array<RotationExpectation, 8> expectations = { |
| {{wgpu::ExternalTextureRotation::Rotate0Degrees, false, utils::RGBA8::kGreen, |
| utils::RGBA8::kBlack, utils::RGBA8::kRed, utils::RGBA8::kBlue}, |
| {wgpu::ExternalTextureRotation::Rotate90Degrees, false, utils::RGBA8::kBlack, |
| utils::RGBA8::kBlue, utils::RGBA8::kGreen, utils::RGBA8::kRed}, |
| {wgpu::ExternalTextureRotation::Rotate180Degrees, false, utils::RGBA8::kBlue, |
| utils::RGBA8::kRed, utils::RGBA8::kBlack, utils::RGBA8::kGreen}, |
| {wgpu::ExternalTextureRotation::Rotate270Degrees, false, utils::RGBA8::kRed, |
| utils::RGBA8::kGreen, utils::RGBA8::kBlue, utils::RGBA8::kBlack}, |
| {wgpu::ExternalTextureRotation::Rotate0Degrees, true, utils::RGBA8::kRed, |
| utils::RGBA8::kBlue, utils::RGBA8::kGreen, utils::RGBA8::kBlack}, |
| {wgpu::ExternalTextureRotation::Rotate90Degrees, true, utils::RGBA8::kGreen, |
| utils::RGBA8::kRed, utils::RGBA8::kBlack, utils::RGBA8::kBlue}, |
| {wgpu::ExternalTextureRotation::Rotate180Degrees, true, utils::RGBA8::kBlack, |
| utils::RGBA8::kGreen, utils::RGBA8::kBlue, utils::RGBA8::kRed}, |
| {wgpu::ExternalTextureRotation::Rotate270Degrees, true, utils::RGBA8::kBlue, |
| utils::RGBA8::kBlack, utils::RGBA8::kRed, utils::RGBA8::kGreen}}}; |
| |
| for (const RotationExpectation& exp : expectations) { |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = sourceTexture.CreateView(); |
| externalDesc.rotation = exp.rotation; |
| externalDesc.flipY = exp.flipY; |
| externalDesc.visibleOrigin = {0, 0}; |
| externalDesc.visibleSize = {kWidth, kHeight}; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into |
| // the upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(6); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperLeftColor, renderTexture, 0, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperLeftColor, renderTexture, 1, 1); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperRightColor, renderTexture, 3, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperRightColor, renderTexture, 2, 1); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerLeftColor, renderTexture, 0, 3); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerLeftColor, renderTexture, 1, 2); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerRightColor, renderTexture, 3, 3); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerRightColor, renderTexture, 2, 2); |
| } |
| } |
| |
| // Test draws a green square in the upper left quadrant, a black square in the upper right, a red |
| // square in the lower left and a blue square in the lower right. The image is then sampled as an |
| // external texture and rotated 0, 90, 180, and 270 degrees with and without the y-axis flipped. |
| TEST_P(ExternalTextureTests, RotateAndOrFlipMultiplanar) { |
| // TODO(crbug.com/tint/1774): Tint has an issue compiling shaders that use external textures on |
| // OpenGL/OpenGLES. |
| DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES()); |
| |
| const wgpu::ShaderModule sourceTexturePlane0FsModule = utils::CreateShaderModule(device, R"( |
| @fragment fn main(@builtin(position) FragCoord : vec4f) |
| -> @location(0) vec4f { |
| |
| if(FragCoord.y < 2.0 && FragCoord.x < 2.0) { |
| return vec4f(0.7152, 0.0, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.0722, 0.0, 1.0, 1.0); |
| } |
| |
| if(FragCoord.y < 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.0, 0.0, 0.0, 0.0); |
| } |
| |
| return vec4f(0.2126, 0.0, 0.0, 0.0); |
| })"); |
| |
| const wgpu::ShaderModule sourceTexturePlane1FsModule = utils::CreateShaderModule(device, R"( |
| @fragment fn main(@builtin(position) FragCoord : vec4f) |
| -> @location(0) vec4f { |
| |
| if(FragCoord.x < 2.0 && FragCoord.y < 2.0) { |
| return vec4f(0.1402, 0.0175, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(1.0, 0.4937, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y < 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.5, 0.5, 0.0, 0.0); |
| } |
| |
| return vec4f(0.4172, 1.0, 0.0, 0.0); |
| })"); |
| |
| wgpu::Texture sourceTexturePlane0 = |
| Create2DTexture(device, kWidth, kHeight, wgpu::TextureFormat::R8Unorm, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| wgpu::Texture sourceTexturePlane1 = |
| Create2DTexture(device, kWidth, kHeight, wgpu::TextureFormat::RG8Unorm, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| |
| RenderToSourceTexture(sourceTexturePlane0FsModule, sourceTexturePlane0); |
| RenderToSourceTexture(sourceTexturePlane1FsModule, sourceTexturePlane1); |
| |
| wgpu::Texture renderTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::RenderAttachment); |
| |
| // Control case to verify flipY and rotation defaults |
| { |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = sourceTexturePlane0.CreateView(); |
| externalDesc.plane1 = sourceTexturePlane1.CreateView(); |
| externalDesc.visibleOrigin = {0, 0}; |
| externalDesc.visibleSize = {kWidth, kHeight}; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into |
| // the upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(6); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kGreen, renderTexture, 0, 0); |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kBlack, renderTexture, 3, 0); |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kRed, renderTexture, 0, 3); |
| EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kBlue, renderTexture, 3, 3); |
| } |
| |
| struct RotationExpectation { |
| wgpu::ExternalTextureRotation rotation; |
| bool flipY; |
| utils::RGBA8 upperLeftColor; |
| utils::RGBA8 upperRightColor; |
| utils::RGBA8 lowerLeftColor; |
| utils::RGBA8 lowerRightColor; |
| }; |
| |
| std::array<RotationExpectation, 8> expectations = { |
| {{wgpu::ExternalTextureRotation::Rotate0Degrees, false, utils::RGBA8::kGreen, |
| utils::RGBA8::kBlack, utils::RGBA8::kRed, utils::RGBA8::kBlue}, |
| {wgpu::ExternalTextureRotation::Rotate90Degrees, false, utils::RGBA8::kBlack, |
| utils::RGBA8::kBlue, utils::RGBA8::kGreen, utils::RGBA8::kRed}, |
| {wgpu::ExternalTextureRotation::Rotate180Degrees, false, utils::RGBA8::kBlue, |
| utils::RGBA8::kRed, utils::RGBA8::kBlack, utils::RGBA8::kGreen}, |
| {wgpu::ExternalTextureRotation::Rotate270Degrees, false, utils::RGBA8::kRed, |
| utils::RGBA8::kGreen, utils::RGBA8::kBlue, utils::RGBA8::kBlack}, |
| {wgpu::ExternalTextureRotation::Rotate0Degrees, true, utils::RGBA8::kRed, |
| utils::RGBA8::kBlue, utils::RGBA8::kGreen, utils::RGBA8::kBlack}, |
| {wgpu::ExternalTextureRotation::Rotate90Degrees, true, utils::RGBA8::kGreen, |
| utils::RGBA8::kRed, utils::RGBA8::kBlack, utils::RGBA8::kBlue}, |
| {wgpu::ExternalTextureRotation::Rotate180Degrees, true, utils::RGBA8::kBlack, |
| utils::RGBA8::kGreen, utils::RGBA8::kBlue, utils::RGBA8::kRed}, |
| {wgpu::ExternalTextureRotation::Rotate270Degrees, true, utils::RGBA8::kBlue, |
| utils::RGBA8::kBlack, utils::RGBA8::kRed, utils::RGBA8::kGreen}}}; |
| |
| for (const RotationExpectation& exp : expectations) { |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = sourceTexturePlane0.CreateView(); |
| externalDesc.plane1 = sourceTexturePlane1.CreateView(); |
| externalDesc.rotation = exp.rotation; |
| externalDesc.flipY = exp.flipY; |
| externalDesc.visibleOrigin = {0, 0}; |
| externalDesc.visibleSize = {kWidth, kHeight}; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into |
| // the upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(6); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperLeftColor, renderTexture, 0, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperLeftColor, renderTexture, 1, 1); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperRightColor, renderTexture, 3, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperRightColor, renderTexture, 2, 1); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerLeftColor, renderTexture, 0, 3); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerLeftColor, renderTexture, 1, 2); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerRightColor, renderTexture, 3, 3); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerRightColor, renderTexture, 2, 2); |
| } |
| } |
| |
| // This test draws a 2x2 multi-colored square surrounded by a 1px black border. We test the external |
| // texture crop functionality by cropping to specific ranges inside the texture. |
| TEST_P(ExternalTextureTests, CropSinglePlane) { |
| // TODO(crbug.com/tint/1774): Tint has an issue compiling shaders that use external textures on |
| // OpenGL/OpenGLES. |
| DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES()); |
| |
| const wgpu::ShaderModule sourceTextureFsModule = utils::CreateShaderModule(device, R"( |
| @fragment fn main(@builtin(position) FragCoord : vec4f) |
| -> @location(0) vec4f { |
| if(FragCoord.x >= 1.0 && FragCoord.x < 3.0 && FragCoord.y >= 1.0 && FragCoord.y < 3.0) { |
| if(FragCoord.y < 2.0 && FragCoord.x < 2.0) { |
| return vec4f(0.0, 1.0, 0.0, 1.0); |
| } |
| |
| if(FragCoord.y < 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(1.0, 1.0, 1.0, 1.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x < 2.0) { |
| return vec4f(1.0, 0.0, 0.0, 1.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.0, 0.0, 1.0, 1.0); |
| } |
| } |
| |
| return vec4f(0.0, 0.0, 0.0, 1.0); |
| })"); |
| |
| wgpu::Texture sourceTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| |
| RenderToSourceTexture(sourceTextureFsModule, sourceTexture); |
| |
| wgpu::Texture renderTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::RenderAttachment); |
| |
| struct CropExpectation { |
| wgpu::Origin2D visibleOrigin; |
| wgpu::Extent2D visibleSize; |
| wgpu::ExternalTextureRotation rotation; |
| utils::RGBA8 upperLeftColor; |
| utils::RGBA8 upperRightColor; |
| utils::RGBA8 lowerLeftColor; |
| utils::RGBA8 lowerRightColor; |
| }; |
| |
| std::array<CropExpectation, 9> expectations = {{ |
| {{0, 0}, |
| {kWidth, kHeight}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kBlack, |
| utils::RGBA8::kBlack, |
| utils::RGBA8::kBlack, |
| utils::RGBA8::kBlack}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kGreen}, |
| {{kWidth / 2, kHeight / 4}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kWhite}, |
| {{kWidth / 4, kHeight / 2}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kRed}, |
| {{kWidth / 2, kHeight / 2}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kBlue}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kBlue}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate90Degrees, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kRed}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate180Degrees, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kGreen}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate270Degrees, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kWhite}, |
| }}; |
| |
| for (const CropExpectation& exp : expectations) { |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = sourceTexture.CreateView(); |
| externalDesc.rotation = exp.rotation; |
| externalDesc.visibleOrigin = exp.visibleOrigin; |
| externalDesc.visibleSize = exp.visibleSize; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into |
| // the upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(6); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperLeftColor, renderTexture, 0, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperRightColor, renderTexture, 3, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerLeftColor, renderTexture, 0, 3); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerRightColor, renderTexture, 3, 3); |
| } |
| } |
| |
| // This test draws a 2x2 multi-colored square surrounded by a 1px black border. We test the external |
| // texture crop functionality by cropping to specific ranges inside the texture. |
| TEST_P(ExternalTextureTests, CropMultiplanar) { |
| // TODO(crbug.com/tint/1774): Tint has an issue compiling shaders that use external textures on |
| // OpenGL/OpenGLES. |
| DAWN_SUPPRESS_TEST_IF(IsOpenGL() || IsOpenGLES()); |
| |
| const wgpu::ShaderModule sourceTexturePlane0FsModule = utils::CreateShaderModule(device, R"( |
| @fragment fn main(@builtin(position) FragCoord : vec4f) |
| -> @location(0) vec4f { |
| if(FragCoord.x >= 1.0 && FragCoord.x < 3.0 && FragCoord.y >= 1.0 && FragCoord.y < 3.0) { |
| if(FragCoord.y < 2.0 && FragCoord.x < 2.0) { |
| return vec4f(0.7152, 0.0, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y < 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(1.0, 0.0, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x < 2.0) { |
| return vec4f(0.2126, 0.0, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.0722, 0.0, 1.0, 1.0); |
| } |
| } |
| |
| return vec4f(0.0, 0.0, 0.0, 0.0); |
| })"); |
| |
| const wgpu::ShaderModule sourceTexturePlane1FsModule = utils::CreateShaderModule(device, R"( |
| @fragment fn main(@builtin(position) FragCoord : vec4f) |
| -> @location(0) vec4f { |
| if(FragCoord.x >= 1.0 && FragCoord.x < 3.0 && FragCoord.y >= 1.0 && FragCoord.y < 3.0) { |
| if(FragCoord.y < 2.0 && FragCoord.x < 2.0) { |
| return vec4f(0.1402, 0.0175, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y < 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(0.5, 0.5, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x < 2.0) { |
| return vec4f(0.4172, 1.0, 0.0, 0.0); |
| } |
| |
| if(FragCoord.y >= 2.0 && FragCoord.x >= 2.0) { |
| return vec4f(1.0, 0.4937, 0.0, 0.0); |
| } |
| } |
| |
| return vec4f(0.5, 0.5, 0.0, 0.0); |
| })"); |
| |
| wgpu::Texture sourceTexturePlane0 = |
| Create2DTexture(device, kWidth, kHeight, wgpu::TextureFormat::R8Unorm, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| wgpu::Texture sourceTexturePlane1 = |
| Create2DTexture(device, kWidth, kHeight, wgpu::TextureFormat::RG8Unorm, |
| wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment); |
| |
| RenderToSourceTexture(sourceTexturePlane0FsModule, sourceTexturePlane0); |
| RenderToSourceTexture(sourceTexturePlane1FsModule, sourceTexturePlane1); |
| |
| wgpu::Texture renderTexture = |
| Create2DTexture(device, kWidth, kHeight, kFormat, |
| wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::RenderAttachment); |
| |
| struct CropExpectation { |
| wgpu::Origin2D visibleOrigin; |
| wgpu::Extent2D visibleSize; |
| wgpu::ExternalTextureRotation rotation; |
| utils::RGBA8 upperLeftColor; |
| utils::RGBA8 upperRightColor; |
| utils::RGBA8 lowerLeftColor; |
| utils::RGBA8 lowerRightColor; |
| }; |
| |
| std::array<CropExpectation, 9> expectations = { |
| {{{0, 0}, |
| {kWidth, kHeight}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kBlack, |
| utils::RGBA8::kBlack, |
| utils::RGBA8::kBlack, |
| utils::RGBA8::kBlack}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kGreen}, |
| {{kWidth / 2, kHeight / 4}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kWhite}, |
| {{kWidth / 4, kHeight / 2}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kRed}, |
| {{kWidth / 2, kHeight / 2}, |
| {kWidth / 4, kHeight / 4}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kBlue}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate0Degrees, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kBlue}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate90Degrees, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kRed}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate180Degrees, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kWhite, |
| utils::RGBA8::kGreen}, |
| {{kWidth / 4, kHeight / 4}, |
| {kWidth / 2, kHeight / 2}, |
| wgpu::ExternalTextureRotation::Rotate270Degrees, |
| utils::RGBA8::kRed, |
| utils::RGBA8::kGreen, |
| utils::RGBA8::kBlue, |
| utils::RGBA8::kWhite}}}; |
| |
| for (const CropExpectation& exp : expectations) { |
| // Pipeline Creation |
| utils::ComboRenderPipelineDescriptor descriptor; |
| descriptor.vertex.module = vsModule; |
| descriptor.cFragment.module = fsSampleExternalTextureModule; |
| descriptor.cTargets[0].format = kFormat; |
| wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&descriptor); |
| |
| // Create an ExternalTextureDescriptor from the texture view |
| wgpu::ExternalTextureDescriptor externalDesc = CreateDefaultExternalTextureDescriptor(); |
| externalDesc.plane0 = sourceTexturePlane0.CreateView(); |
| externalDesc.plane1 = sourceTexturePlane1.CreateView(); |
| externalDesc.rotation = exp.rotation; |
| externalDesc.visibleOrigin = exp.visibleOrigin; |
| externalDesc.visibleSize = exp.visibleSize; |
| |
| // Import the external texture |
| wgpu::ExternalTexture externalTexture = device.CreateExternalTexture(&externalDesc); |
| |
| // Create a sampler and bind group |
| wgpu::Sampler sampler = device.CreateSampler(); |
| |
| wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0), |
| {{0, sampler}, {1, externalTexture}}); |
| |
| // Run the shader, which should sample from the external texture and draw a triangle into |
| // the upper left corner of the render texture. |
| wgpu::TextureView renderView = renderTexture.CreateView(); |
| utils::ComboRenderPassDescriptor renderPass({renderView}, nullptr); |
| wgpu::CommandEncoder encoder = device.CreateCommandEncoder(); |
| wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass); |
| { |
| pass.SetPipeline(pipeline); |
| pass.SetBindGroup(0, bindGroup); |
| pass.Draw(6); |
| pass.End(); |
| } |
| |
| wgpu::CommandBuffer commands = encoder.Finish(); |
| queue.Submit(1, &commands); |
| |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperLeftColor, renderTexture, 0, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.upperRightColor, renderTexture, 3, 0); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerLeftColor, renderTexture, 0, 3); |
| EXPECT_PIXEL_RGBA8_EQ(exp.lowerRightColor, renderTexture, 3, 3); |
| } |
| } |
| |
| DAWN_INSTANTIATE_TEST(ExternalTextureTests, |
| D3D11Backend(), |
| D3D12Backend(), |
| MetalBackend(), |
| OpenGLBackend(), |
| OpenGLESBackend(), |
| VulkanBackend()); |
| |
| } // anonymous namespace |
| } // namespace dawn |
