Implement RenderPassEncoder::SetViewport: add end2end tests
The main aim of this CL is to add tests for SetViewport. But it also implements the feature on Vulkan backend to verify the tests. BUG=dawn:53 TEST=dawn_end2end_tests Change-Id: I9578b2d9650cb952ce67cf91f79e9682c9932ee3 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/8820 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Yunchao He <yunchao.he@intel.com>
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Yunchao He
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BUILD.gn
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BUILD.gn
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@ -687,6 +687,7 @@ test("dawn_end2end_tests") {
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"src/tests/end2end/VertexFormatTests.cpp",
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"src/tests/end2end/VertexInputTests.cpp",
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"src/tests/end2end/ViewportOrientationTests.cpp",
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"src/tests/end2end/ViewportTests.cpp",
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]
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libs = []
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@ -743,6 +743,19 @@ namespace dawn_native { namespace vulkan {
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cmd->reference);
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} break;
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case Command::SetViewport: {
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SetViewportCmd* cmd = mCommands.NextCommand<SetViewportCmd>();
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VkViewport viewport;
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viewport.x = cmd->x;
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viewport.y = cmd->y;
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viewport.width = cmd->width;
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viewport.height = cmd->height;
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viewport.minDepth = cmd->minDepth;
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viewport.maxDepth = cmd->maxDepth;
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device->fn.CmdSetViewport(commands, 0, 1, &viewport);
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} break;
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case Command::SetScissorRect: {
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SetScissorRectCmd* cmd = mCommands.NextCommand<SetScissorRectCmd>();
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VkRect2D rect;
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@ -0,0 +1,328 @@
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// Copyright 2019 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "tests/DawnTest.h"
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#include "utils/ComboRenderPipelineDescriptor.h"
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#include "utils/DawnHelpers.h"
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class ViewportTest : public DawnTest {
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protected:
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dawn::RenderPipeline CreatePipelineForTest() {
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utils::ComboRenderPipelineDescriptor pipelineDescriptor(device);
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// Draw two triangles:
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// 1. The top-left triangle is red. Its depth values are >= 0.5. After viewport is applied,
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// the depth might be >= 0.25 if minDepth is 0 and maxDepth is 0.5.
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// 2. The bottom-right triangle is green. Its depth values are <= 0.5. After viewport is
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// applied, the depth might be <= 0.25 if minDepth is 0 and maxDepth is 0.5.
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const char* vs =
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R"(#version 450
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layout(location = 0) out vec4 color;
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const vec3 pos[6] = vec3[6](vec3(-1.0f, -1.0f, 1.0f),
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vec3(-1.0f, 1.0f, 0.5f),
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vec3( 1.0f, -1.0f, 0.5f),
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vec3( 1.0f, -1.0f, 0.5f),
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vec3(-1.0f, 1.0f, 0.5f),
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vec3( 1.0f, 1.0f, 0.0f));
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void main() {
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gl_Position = vec4(pos[gl_VertexIndex], 1.0);
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if (gl_VertexIndex < 3) {
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color = vec4(1.0, 0.0, 0.0, 1.0);
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} else {
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color = vec4(0.0, 1.0, 0.0, 1.0);
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}
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})";
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pipelineDescriptor.cVertexStage.module =
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utils::CreateShaderModule(device, utils::ShaderStage::Vertex, vs);
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const char* fs =
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R"(#version 450
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layout(location = 0) in vec4 color;
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layout(location = 0) out vec4 fragColor;
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void main() {
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fragColor = color;
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})";
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pipelineDescriptor.cFragmentStage.module =
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utils::CreateShaderModule(device, utils::ShaderStage::Fragment, fs);
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pipelineDescriptor.cDepthStencilState.depthCompare = dawn::CompareFunction::Less;
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pipelineDescriptor.depthStencilState = &pipelineDescriptor.cDepthStencilState;
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return device.CreateRenderPipeline(&pipelineDescriptor);
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}
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dawn::Texture Create2DTextureForTest(dawn::TextureFormat format) {
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dawn::TextureDescriptor textureDescriptor;
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textureDescriptor.dimension = dawn::TextureDimension::e2D;
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textureDescriptor.format = format;
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textureDescriptor.usage =
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dawn::TextureUsageBit::OutputAttachment | dawn::TextureUsageBit::CopySrc;
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textureDescriptor.arrayLayerCount = 1;
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textureDescriptor.mipLevelCount = 1;
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textureDescriptor.sampleCount = 1;
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textureDescriptor.size = {kSize, kSize, 1};
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return device.CreateTexture(&textureDescriptor);
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}
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enum ColorType {
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TopLeftTriangleColor,
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BottomRightTriangleColor,
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BackgroundColor,
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ColorTypeCount,
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};
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struct ViewportParams {
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float x, y, width, height, minDepth, maxDepth;
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};
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struct TestInfo {
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ViewportParams viewport;
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ColorType topLeftPoint;
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ColorType bottomRightPoint;
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float clearDepth = 1.0f;
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bool setViewport = true;
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};
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void DoTest(const TestInfo& info) {
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dawn::Texture colorTexture = Create2DTextureForTest(dawn::TextureFormat::RGBA8Unorm);
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dawn::Texture depthStencilTexture =
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Create2DTextureForTest(dawn::TextureFormat::Depth24PlusStencil8);
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utils::ComboRenderPassDescriptor renderPassDescriptor(
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{colorTexture.CreateDefaultView()}, depthStencilTexture.CreateDefaultView());
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renderPassDescriptor.cColorAttachmentsInfoPtr[0]->clearColor = {0.0, 0.0, 1.0, 1.0};
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renderPassDescriptor.cColorAttachmentsInfoPtr[0]->loadOp = dawn::LoadOp::Clear;
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renderPassDescriptor.cDepthStencilAttachmentInfo.clearDepth = info.clearDepth;
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renderPassDescriptor.cDepthStencilAttachmentInfo.depthLoadOp = dawn::LoadOp::Clear;
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dawn::CommandEncoder commandEncoder = device.CreateCommandEncoder();
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dawn::RenderPassEncoder renderPass = commandEncoder.BeginRenderPass(&renderPassDescriptor);
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renderPass.SetPipeline(CreatePipelineForTest());
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if (info.setViewport) {
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ViewportParams viewport = info.viewport;
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renderPass.SetViewport(viewport.x, viewport.y, viewport.width, viewport.height,
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viewport.minDepth, viewport.maxDepth);
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}
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renderPass.Draw(6, 1, 0, 0);
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renderPass.EndPass();
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dawn::CommandBuffer commandBuffer = commandEncoder.Finish();
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dawn::Queue queue = device.CreateQueue();
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queue.Submit(1, &commandBuffer);
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constexpr RGBA8 kColor[ColorTypeCount] = {
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RGBA8(255, 0, 0, 255), // top-left triangle is red
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RGBA8(0, 255, 0, 255), // bottom-right triangle is green
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RGBA8(0, 0, 255, 255), // background is blue
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};
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EXPECT_PIXEL_RGBA8_EQ(kColor[info.topLeftPoint], colorTexture, 0, 0);
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EXPECT_PIXEL_RGBA8_EQ(kColor[info.bottomRightPoint], colorTexture, kSize - 1, kSize - 1);
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}
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static constexpr uint32_t kSize = 4;
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};
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// The viewport is the same size as the backbuffer if it is not explicitly specified. And minDepth
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// and maxDepth are 0.0 and 1.0 respectively. The viewport parameters below are not really used.
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// Point(0, 0) is covered by the top-left triangle. Likewise, point(3, 3) is covered by the
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// bottom-right triangle.
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TEST_P(ViewportTest, Default) {
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ViewportParams viewport = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0};
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TestInfo info = {viewport, TopLeftTriangleColor, BottomRightTriangleColor, 1.0, false};
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DoTest(info);
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}
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// Explicitly specify the viewport as its default value. The result is the same as it is in the test
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// above.
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TEST_P(ViewportTest, Basic) {
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ViewportParams viewport = {0.0, 0.0, 4.0, 4.0, 0.0, 1.0};
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TestInfo info = {viewport, TopLeftTriangleColor, BottomRightTriangleColor};
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DoTest(info);
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}
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// Shift the viewport toward top-left by (2, 2). So the top-left triangle is outside of the back
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// buffer. We can't see it. And point(0, 0) is covered by the bottom-right triangle now. Point(3, 3)
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// is not covered by any triangles.
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TEST_P(ViewportTest, ShiftToTopLeft) {
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ViewportParams viewport = {-2.0, -2.0, 4.0, 4.0, 0.0, 1.0};
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TestInfo info = {viewport, BottomRightTriangleColor, BackgroundColor};
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DoTest(info);
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}
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// Shift the viewport toward bottom-right by (2, 2). So Point(0, 0) is not covered by any triangles.
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// The top-left triangle is moved to the bottom-right of back buffer. Point(3, 3) is covered by it.
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// While the bottom-right triangle is moved outside of back buffer now.
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TEST_P(ViewportTest, ShiftToBottomRight) {
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ViewportParams viewport = {2.0, 2.0, 4.0, 4.0, 0.0, 1.0};
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TestInfo info = {viewport, BackgroundColor, TopLeftTriangleColor};
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DoTest(info);
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}
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// After applying the minDepth/maxDepth value in viewport and projecting to framebuffer coordinate,
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// depth values of the top-left triangle are >= 0.25. They are greater than the depth values in
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// depth buffer, so it is not drawn at all. As a result, point(0, 0) is not covered by any
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// triangles. But the bottom-right triangle is drawn as usual.
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TEST_P(ViewportTest, ApplyDepth) {
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ViewportParams viewport = {0.0, 0.0, 4.0, 4.0, 0.0, 0.5};
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TestInfo info = {viewport, BackgroundColor, BottomRightTriangleColor, 0.25};
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DoTest(info);
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}
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// Shift the viewport toward top-left by (2, 2). So the top-left triangle is outside of the back
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// buffer. We can't see it. And point(0, 0) is covered by the bottom-right triangle now. Its depth
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// value is < 0.25. So it is drawn as usual. Point(3, 3) is not covered by any triangles.
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TEST_P(ViewportTest, ShiftToTopLeftAndApplyDepth) {
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// Test failing on Linux Vulkan Intel.
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// See https://bugs.chromium.org/p/dawn/issues/detail?id=187
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DAWN_SKIP_TEST_IF(IsLinux() && IsVulkan() && IsIntel());
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ViewportParams viewport = {-2.0, -2.0, 4.0, 4.0, 0.0, 0.5};
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TestInfo info = {viewport, BottomRightTriangleColor, BackgroundColor, 0.25};
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DoTest(info);
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}
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// Shift the viewport toward bottom-right by (2, 2). So point(0, 0) is not covered by any triangles.
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// The top-left triangle is moved to the bottom-right of back buffer. However, depth values of the
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// top-left triangle are >= 0.25. They are greater than the depth values in depth buffer, so it is
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// not drawn at all. So point(3, 3) is not covered by any triangle, either.
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TEST_P(ViewportTest, ShiftToBottomRightAndApplyDepth) {
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ViewportParams viewport = {2.0, 2.0, 4.0, 4.0, 0.0, 0.5};
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TestInfo info = {viewport, BackgroundColor, BackgroundColor, 0.25};
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DoTest(info);
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}
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// Enlarge the viewport by 2 times. So the entire back buffer is covered by the top-left triangle.
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TEST_P(ViewportTest, EnlargeViewport) {
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ViewportParams viewport = {0.0, 0.0, 8.0, 8.0, 0.0, 1.0};
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TestInfo info = {viewport, TopLeftTriangleColor, TopLeftTriangleColor};
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DoTest(info);
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}
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// Enlarge the viewport by 2 times and shift toward top-left by (2, 2). back buffer sits exactly
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// at the center of the whole viewport. So, point(0, 0) is covered by the top-left triangle, and
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// point(3, 3) is covered by the bottom-right triangle.
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TEST_P(ViewportTest, EnlargeViewportAndShiftToTopLeft) {
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ViewportParams viewport = {-2.0, -2.0, 8.0, 8.0, 0.0, 1.0};
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TestInfo info = {viewport, TopLeftTriangleColor, BottomRightTriangleColor};
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DoTest(info);
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}
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// Enlarge the viewport by 2 times and shift toward bottom-right by (2, 2). Point(0, 0) is not
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// covered by any triangle. Point(3, 3) is covered by the top-left triangle.
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TEST_P(ViewportTest, EnlargeViewportAndShiftToBottomRight) {
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ViewportParams viewport = {2.0, 2.0, 8.0, 8.0, 0.0, 1.0};
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TestInfo info = {viewport, BackgroundColor, TopLeftTriangleColor};
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DoTest(info);
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}
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// Enlarge the viewport by 2 times. So the entire back buffer tend to be covered by the top-left
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// triangle. However, depth values of the top-left triangle are >= 0.25. They are greater than the
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// depth values in depth buffer, so the top-left triangle is not drawn at all. As a result, neither
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// point(0, 0) nor point(3, 3) is covered by any triangles.
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TEST_P(ViewportTest, EnlargeViewportAndApplyDepth) {
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ViewportParams viewport = {0.0, 0.0, 8.0, 8.0, 0.0, 0.5};
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TestInfo info = {viewport, BackgroundColor, BackgroundColor, 0.25};
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DoTest(info);
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}
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// Enlarge the viewport by 2 times and shift toward top-left by (2, 2). The back buffer sits exactly
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// at the center of the whole viewport. However, depth values of the top-left triangle are >= 0.25.
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// They are greater than the depth values in depth buffer, so the top-left triangle is not drawn at
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// all. As a result, point(0, 0) is not covered by it. The bottom-right triangle is drawn because
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// its depth values are < 0.25. So point(3, 3) is covered by it as usual.
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TEST_P(ViewportTest, EnlargeViewportAndShiftToTopLeftAndApplyDepth) {
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// Test failing on Linux Vulkan Intel.
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// See https://bugs.chromium.org/p/dawn/issues/detail?id=187
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DAWN_SKIP_TEST_IF(IsLinux() && IsVulkan() && IsIntel());
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ViewportParams viewport = {-2.0, -2.0, 8.0, 8.0, 0.0, 0.5};
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TestInfo info = {viewport, BackgroundColor, BottomRightTriangleColor, 0.25};
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DoTest(info);
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}
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// Enlarge the viewport by 2 times and shift toward bottom-right by (2, 2). Point(0, 0) is not
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// covered by any triangle. The point(3, 3) tend to be covered by the top-left triangle. However,
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// depth values of the top-left triangle are >= 0.25. They are greater than the depth values in
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// depth buffer, so the top-left triangle is not drawn at all. As a result, point(3, 3) is not
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// covered by any triangle, either.
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TEST_P(ViewportTest, EnlargeViewportAndShiftToBottomRightAndApplyDepth) {
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ViewportParams viewport = {2.0, 2.0, 8.0, 8.0, 0.0, 0.5};
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TestInfo info = {viewport, BackgroundColor, BackgroundColor, 0.25};
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DoTest(info);
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}
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// Shrink the viewport to its half. So point(0, 0) is covered by the top-left triangle, while
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// point(3, 3) is not covered by any triangles because the drawing area is too small to cover the
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// entire back buffer.
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TEST_P(ViewportTest, ShrinkViewport) {
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ViewportParams viewport = {0.0, 0.0, 2.0, 2.0, 0.0, 1.0};
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TestInfo info = {viewport, TopLeftTriangleColor, BackgroundColor};
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DoTest(info);
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}
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// Shrink the viewport to its half and move toward top-left by (1, 1), So point(0, 0) is covered by
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// bottom-right triangle, while point(3, 3) is not covered by any triangles.
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TEST_P(ViewportTest, ShrinkViewportAndShiftToTopLeft) {
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ViewportParams viewport = {-1.0, -1.0, 2.0, 2.0, 0.0, 1.0};
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TestInfo info = {viewport, BottomRightTriangleColor, BackgroundColor};
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DoTest(info);
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}
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// Shrink the viewport to its half and move toward bottom-right by (3, 3), So point(0, 0) is not
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// covered by any triangles, and point(3, 3) is covered by the bottom-right triangle.
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TEST_P(ViewportTest, ShrinkViewportAndShiftToBottomRight) {
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ViewportParams viewport = {3.0, 3.0, 2.0, 2.0, 0.0, 1.0};
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TestInfo info = {viewport, BackgroundColor, TopLeftTriangleColor};
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DoTest(info);
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}
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// Shrink the viewport to its half. So point(0, 0) is tend to be covered by top-left triangle.
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// However, depth values of the top-left triangle are >= 0.25. They are greater than the depth
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// values in depth buffer, so the top-left triangle is not drawn at all. As a result, point(0, 0)
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// is not covered by any triangle. Point(3, 3) is not covered by any triangles, either. Because the
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// drawing area is too small to cover the entire back buffer.
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TEST_P(ViewportTest, ShrinkViewportAndApplyDepth) {
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ViewportParams viewport = {0.0, 0.0, 2.0, 2.0, 0.0, 0.5};
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TestInfo info = {viewport, BackgroundColor, BackgroundColor, 0.25};
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DoTest(info);
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}
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// Shrink the viewport to its half and move toward top-left by (1, 1), So point(0, 0) is covered by
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// the bottom-right triangle, while point(3, 3) is not covered by any triangles.
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TEST_P(ViewportTest, ShrinkViewportAndShiftToTopLeftAndApplyDepth) {
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// Test failing on Linux Vulkan Intel.
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// See https://bugs.chromium.org/p/dawn/issues/detail?id=187
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DAWN_SKIP_TEST_IF(IsLinux() && IsVulkan() && IsIntel());
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ViewportParams viewport = {-1.0, -1.0, 2.0, 2.0, 0.0, 0.5};
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TestInfo info = {viewport, BottomRightTriangleColor, BackgroundColor, 0.25};
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DoTest(info);
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}
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// Shrink the viewport to its half and move toward bottom-right by (3, 3), So point(0, 0) is not
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// covered by any triangle. Point(3, 3) is tend to be covered by the top-left triangle. However,
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// depth values of the top-left triangle are >= 0.25. They are greater than the depth values in
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// depth buffer, so the top-left triangle is not drawn at all. As a result, point(3, 3) is not
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// covered by any triangle, either.
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TEST_P(ViewportTest, ShrinkViewportAndShiftToBottomRightAndApplyDepth) {
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ViewportParams viewport = {3.0, 3.0, 2.0, 2.0, 0.0, 0.5};
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TestInfo info = {viewport, BackgroundColor, BackgroundColor, 0.25};
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DoTest(info);
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}
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DAWN_INSTANTIATE_TEST(ViewportTest, VulkanBackend);
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