180 lines
7.2 KiB
C++
180 lines
7.2 KiB
C++
// Copyright 2018 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/DawnHelpers.h"
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class ScissorTest: public DawnTest {
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protected:
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dawn::RenderPipeline CreateQuadPipeline(dawn::TextureFormat format) {
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dawn::ShaderModule vsModule = utils::CreateShaderModule(device, dawn::ShaderStage::Vertex, R"(
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#version 450
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const vec2 pos[6] = vec2[6](
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vec2(-1.0f, -1.0f), vec2(-1.0f, 1.0f), vec2(1.0f, -1.0f),
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vec2(1.0f, 1.0f), vec2(-1.0f, 1.0f), vec2(1.0f, -1.0f)
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);
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void main() {
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gl_Position = vec4(pos[gl_VertexIndex], 0.5, 1.0);
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})");
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dawn::ShaderModule fsModule = utils::CreateShaderModule(device, dawn::ShaderStage::Fragment, R"(
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#version 450
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layout(location = 0) out vec4 fragColor;
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void main() {
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fragColor = vec4(0.0f, 1.0f, 0.0f, 1.0f);
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})");
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dawn::RenderPipeline pipeline = device.CreateRenderPipelineBuilder()
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.SetColorAttachmentFormat(0, format)
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.SetStage(dawn::ShaderStage::Vertex, vsModule, "main")
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.SetStage(dawn::ShaderStage::Fragment, fsModule, "main")
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.GetResult();
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return pipeline;
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}
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};
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// Test that by default the scissor test is disabled and the whole attachment can be drawn to.
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TEST_P(ScissorTest, DefaultsToWholeRenderTarget) {
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utils::BasicRenderPass renderPass = utils::CreateBasicRenderPass(device, 100, 100);
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dawn::RenderPipeline pipeline = CreateQuadPipeline(renderPass.colorFormat);
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dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder();
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{
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dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo);
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pass.SetRenderPipeline(pipeline);
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pass.Draw(6, 1, 0, 0);
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pass.EndPass();
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}
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dawn::CommandBuffer commands = builder.GetResult();
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queue.Submit(1, &commands);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 0, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 0, 99);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 99, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 99, 99);
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}
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// Test setting the scissor to something larger than the attachments.
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TEST_P(ScissorTest, LargerThanAttachment) {
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utils::BasicRenderPass renderPass = utils::CreateBasicRenderPass(device, 100, 100);
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dawn::RenderPipeline pipeline = CreateQuadPipeline(renderPass.colorFormat);
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dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder();
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{
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dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo);
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pass.SetRenderPipeline(pipeline);
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pass.SetScissorRect(0, 0, 200, 200);
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pass.Draw(6, 1, 0, 0);
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pass.EndPass();
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}
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dawn::CommandBuffer commands = builder.GetResult();
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queue.Submit(1, &commands);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 0, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 0, 99);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 99, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 99, 99);
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}
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// Test setting an empty scissor rect
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TEST_P(ScissorTest, EmptyRect) {
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DAWN_SKIP_TEST_IF(IsMetal());
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DAWN_SKIP_TEST_IF(IsWindows() && IsVulkan() && IsIntel());
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utils::BasicRenderPass renderPass = utils::CreateBasicRenderPass(device, 2, 2);
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dawn::RenderPipeline pipeline = CreateQuadPipeline(renderPass.colorFormat);
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dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder();
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{
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dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo);
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pass.SetRenderPipeline(pipeline);
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pass.SetScissorRect(0, 0, 0, 0);
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pass.Draw(6, 1, 0, 0);
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pass.EndPass();
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}
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dawn::CommandBuffer commands = builder.GetResult();
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queue.Submit(1, &commands);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, 0, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, 0, 1);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, 1, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, 1, 1);
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}
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// Test setting a partial scissor (not empty, not full attachment)
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TEST_P(ScissorTest, PartialRect) {
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utils::BasicRenderPass renderPass = utils::CreateBasicRenderPass(device, 100, 100);
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dawn::RenderPipeline pipeline = CreateQuadPipeline(renderPass.colorFormat);
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constexpr uint32_t kX = 3;
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constexpr uint32_t kY = 7;
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constexpr uint32_t kW = 5;
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constexpr uint32_t kH = 13;
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dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder();
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{
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dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo);
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pass.SetRenderPipeline(pipeline);
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pass.SetScissorRect(kX, kY, kW, kH);
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pass.Draw(6, 1, 0, 0);
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pass.EndPass();
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}
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dawn::CommandBuffer commands = builder.GetResult();
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queue.Submit(1, &commands);
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// Test the two opposite corners of the scissor box. With one pixel inside and on outside
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, kX - 1, kY - 1);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, kX, kY);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 0, 0, 0), renderPass.color, kX + kW, kY + kH);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, kX + kW - 1, kY + kH - 1);
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}
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// Test that the scissor setting doesn't get inherited between renderpasses
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TEST_P(ScissorTest, NoInheritanceBetweenRenderPass) {
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utils::BasicRenderPass renderPass = utils::CreateBasicRenderPass(device, 100, 100);
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dawn::RenderPipeline pipeline = CreateQuadPipeline(renderPass.colorFormat);
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dawn::CommandBufferBuilder builder = device.CreateCommandBufferBuilder();
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// RenderPass 1 set the scissor
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{
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dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo);
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pass.SetScissorRect(0, 0, 0, 0);
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pass.EndPass();
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}
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// RenderPass 2 draw a full quad, it shouldn't be scissored
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{
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dawn::RenderPassEncoder pass = builder.BeginRenderPass(renderPass.renderPassInfo);
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pass.SetRenderPipeline(pipeline);
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pass.Draw(6, 1, 0, 0);
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pass.EndPass();
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}
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dawn::CommandBuffer commands = builder.GetResult();
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queue.Submit(1, &commands);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 0, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 0, 99);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 99, 0);
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EXPECT_PIXEL_RGBA8_EQ(RGBA8(0, 255, 0, 255), renderPass.color, 99, 99);
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}
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DAWN_INSTANTIATE_TEST(ScissorTest, D3D12Backend, MetalBackend, OpenGLBackend, VulkanBackend)
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