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// 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 <vector>
#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, &copy);
}
}
std::vector<wgpu::FeatureName> GetRequiredFeatures() override {
std::vector<wgpu::FeatureName> requiredFeatures = {};
if (SupportsFeatures({wgpu::FeatureName::Norm16TextureFormats})) {
mIsNorm16TextureFormatsSupported = true;
requiredFeatures.push_back(wgpu::FeatureName::Norm16TextureFormats);
}
return requiredFeatures;
}
bool IsNorm16TextureFormatsSupported() { return mIsNorm16TextureFormatsSupported; }
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;
bool mIsNorm16TextureFormatsSupported = false;
};
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_P(ExternalTextureTests, SampleMultiplanarExternalTextureNorm16) {
DAWN_TEST_UNSUPPORTED_IF(!IsNorm16TextureFormatsSupported());
// 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::R16Unorm,
wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment);
wgpu::Texture sampledTexturePlane1 =
Create2DTexture(device, kWidth, kHeight, wgpu::TextureFormat::RG16Unorm,
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, {125, 53, 32, 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.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);
}
}
// Test that sampling an external texture with non-one alpha preserves the alpha channel.
TEST_P(ExternalTextureTests, SampleExternalTextureAlpha) {
// 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();
utils::RGBA8 kColor = {255, 255, 255, 128};
// Initialize texture with green to ensure it is sampled from later.
{
utils::ComboRenderPassDescriptor renderPass({externalView}, nullptr);
renderPass.cColorAttachments[0].clearValue = {kColor.r / 255.0f, kColor.g / 255.0f,
kColor.b / 255.0f, kColor.a / 255.0f};
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(kColor, renderTexture, 0, 0);
}
DAWN_INSTANTIATE_TEST(ExternalTextureTests,
D3D11Backend(),
D3D12Backend(),
D3D12Backend({}, {"d3d12_use_root_signature_version_1_1"}),
MetalBackend(),
OpenGLBackend(),
OpenGLESBackend(),
VulkanBackend());
} // anonymous namespace
} // namespace dawn