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Add end2end tests for texture subresource 

The tests can pass on Metal and OpenGL backend as expected.
But they can't pass on D3D12 and Vulkan backend. I will work
on that soon.

Bug: dawn:157

Change-Id: I4fcf229f7a24369004d5594a3801f0acad804fd0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21341
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Yunchao He 2020-05-16 00:34:57 +00:00 committed by Commit Bot service account
parent 40dc5d3f21
commit a5d54d7091
2 changed files with 195 additions and 0 deletions
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1
src/tests/BUILD.gn
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@ -289,6 +289,7 @@ source_set("dawn_end2end_tests_sources") {
"end2end/ScissorTests.cpp", "end2end/ScissorTests.cpp",
"end2end/StorageTextureTests.cpp", "end2end/StorageTextureTests.cpp",
"end2end/TextureFormatTests.cpp", "end2end/TextureFormatTests.cpp",
"end2end/TextureSubresourceTests.cpp",
"end2end/TextureViewTests.cpp", "end2end/TextureViewTests.cpp",
"end2end/TextureZeroInitTests.cpp", "end2end/TextureZeroInitTests.cpp",
"end2end/VertexFormatTests.cpp", "end2end/VertexFormatTests.cpp",

194
src/tests/end2end/TextureSubresourceTests.cpp Normal file
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@ -0,0 +1,194 @@
// Copyright 2020 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 "tests/DawnTest.h"
#include "utils/ComboRenderPipelineDescriptor.h"
#include "utils/WGPUHelpers.h"
class TextureSubresourceTest : public DawnTest {
public:
static constexpr uint32_t kSize = 4u;
static constexpr wgpu::TextureFormat kFormat = wgpu::TextureFormat::RGBA8Unorm;
wgpu::Texture CreateTexture(uint32_t mipLevelCount,
uint32_t arrayLayerCount,
wgpu::TextureUsage usage) {
wgpu::TextureDescriptor texDesc;
texDesc.dimension = wgpu::TextureDimension::e2D;
texDesc.size = {kSize, kSize, 1};
texDesc.arrayLayerCount = arrayLayerCount;
texDesc.sampleCount = 1;
texDesc.mipLevelCount = mipLevelCount;
texDesc.usage = usage;
texDesc.format = kFormat;
return device.CreateTexture(&texDesc);
}
wgpu::TextureView CreateTextureView(wgpu::Texture texture,
uint32_t baseMipLevel,
uint32_t baseArrayLayer) {
wgpu::TextureViewDescriptor viewDesc;
viewDesc.format = kFormat;
viewDesc.baseArrayLayer = baseArrayLayer;
viewDesc.arrayLayerCount = 1;
viewDesc.baseMipLevel = baseMipLevel;
viewDesc.mipLevelCount = 1;
viewDesc.dimension = wgpu::TextureViewDimension::e2D;
return texture.CreateView(&viewDesc);
}
void DrawTriangle(const wgpu::TextureView& view) {
wgpu::ShaderModule vsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Vertex, R"(
#version 450
void main() {
const vec2 pos[3] = vec2[3](
vec2(-1.f, 1.f), vec2(-1.f, -1.f), vec2(1.f, -1.f));
gl_Position = vec4(pos[gl_VertexIndex], 0.f, 1.f);
})");
wgpu::ShaderModule fsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Fragment, R"(
#version 450
layout(location = 0) out vec4 fragColor;
void main() {
fragColor = vec4(1.0, 0.0, 0.0, 1.0);
})");
utils::ComboRenderPipelineDescriptor descriptor(device);
descriptor.vertexStage.module = vsModule;
descriptor.cFragmentStage.module = fsModule;
descriptor.primitiveTopology = wgpu::PrimitiveTopology::TriangleStrip;
descriptor.cColorStates[0].format = kFormat;
wgpu::RenderPipeline rp = device.CreateRenderPipeline(&descriptor);
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
utils::ComboRenderPassDescriptor renderPassDesc({view});
renderPassDesc.cColorAttachments[0].clearColor = {0.0f, 0.0f, 0.0f, 1.0f};
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPassDesc);
pass.SetPipeline(rp);
pass.Draw(3);
pass.EndPass();
wgpu::CommandBuffer commands = encoder.Finish();
queue.Submit(1, &commands);
}
void SampleAndDraw(const wgpu::TextureView& samplerView, const wgpu::TextureView& renderView) {
wgpu::ShaderModule vsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Vertex, R"(
#version 450
void main() {
const vec2 pos[6] = vec2[6](
vec2(-1.f, -1.f), vec2(1.f, 1.f), vec2(-1.f, 1.f),
vec2(-1.f, -1.f), vec2(1.f, -1.f), vec2(1.f, 1.f));
gl_Position = vec4(pos[gl_VertexIndex], 0.f, 1.f);
})");
wgpu::ShaderModule fsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Fragment, R"(
#version 450
layout (set = 0, binding = 0) uniform sampler samp;
layout (set = 0, binding = 1) uniform texture2D tex;
layout (location = 0) out vec4 fragColor;
void main() {
fragColor = texture(sampler2D(tex, samp), gl_FragCoord.xy / 4);
})");
utils::ComboRenderPipelineDescriptor descriptor(device);
descriptor.vertexStage.module = vsModule;
descriptor.cFragmentStage.module = fsModule;
descriptor.primitiveTopology = wgpu::PrimitiveTopology::TriangleStrip;
descriptor.cColorStates[0].format = kFormat;
wgpu::SamplerDescriptor samplerDescriptor = {};
wgpu::Sampler sampler = device.CreateSampler(&samplerDescriptor);
wgpu::RenderPipeline rp = device.CreateRenderPipeline(&descriptor);
wgpu::BindGroupLayout bgl = rp.GetBindGroupLayout(0);
wgpu::BindGroup bindGroup =
utils::MakeBindGroup(device, bgl, {{0, sampler}, {1, samplerView}});
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
utils::ComboRenderPassDescriptor renderPassDesc({renderView});
renderPassDesc.cColorAttachments[0].clearColor = {0.0f, 0.0f, 0.0f, 1.0f};
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPassDesc);
pass.SetPipeline(rp);
pass.SetBindGroup(0, bindGroup);
pass.Draw(6);
pass.EndPass();
wgpu::CommandBuffer commands = encoder.Finish();
queue.Submit(1, &commands);
}
};
// Test different mipmap levels
TEST_P(TextureSubresourceTest, MipmapLevelsTest) {
// Create a texture with 2 mipmap levels and 1 layer
wgpu::Texture texture =
CreateTexture(2, 1,
wgpu::TextureUsage::Sampled | wgpu::TextureUsage::OutputAttachment |
wgpu::TextureUsage::CopySrc);
// Create two views on different mipmap levels.
wgpu::TextureView samplerView = CreateTextureView(texture, 0, 0);
wgpu::TextureView renderView = CreateTextureView(texture, 1, 0);
// Draw a red triangle at the bottom-left half
DrawTriangle(samplerView);
// Sample from one subresource and draw into another subresource in the same texture
SampleAndDraw(samplerView, renderView);
// Verify that pixel at bottom-left corner is red, while pixel at top-right corner is background
// black in render view (mip level 1).
RGBA8 topRight = RGBA8::kBlack;
RGBA8 bottomLeft = RGBA8::kRed;
EXPECT_TEXTURE_RGBA8_EQ(&topRight, texture, kSize / 2 - 1, 0, 1, 1, 1, 0);
EXPECT_TEXTURE_RGBA8_EQ(&bottomLeft, texture, 0, kSize / 2 - 1, 1, 1, 1, 0);
}
// Test different array layers
TEST_P(TextureSubresourceTest, ArrayLayersTest) {
// Create a texture with 1 mipmap level and 2 layers
wgpu::Texture texture =
CreateTexture(1, 2,
wgpu::TextureUsage::Sampled | wgpu::TextureUsage::OutputAttachment |
wgpu::TextureUsage::CopySrc);
// Create two views on different layers
wgpu::TextureView samplerView = CreateTextureView(texture, 0, 0);
wgpu::TextureView renderView = CreateTextureView(texture, 0, 1);
// Draw a red triangle at the bottom-left half
DrawTriangle(samplerView);
// Sample from one subresource and draw into another subresource in the same texture
SampleAndDraw(samplerView, renderView);
// Verify that pixel at bottom-left corner is red, while pixel at top-right corner is background
// black in render view (array layer 1).
RGBA8 topRight = RGBA8::kBlack;
RGBA8 bottomLeft = RGBA8::kRed;
EXPECT_TEXTURE_RGBA8_EQ(&topRight, texture, kSize - 1, 0, 1, 1, 0, 1);
EXPECT_TEXTURE_RGBA8_EQ(&bottomLeft, texture, 0, kSize - 1, 1, 1, 0, 1);
}
// TODO (yunchao.he@intel.com): add tests for storage texture and sampler across miplevel or
// arraylayer dimensions in the same texture
DAWN_INSTANTIATE_TEST(TextureSubresourceTest, MetalBackend(), OpenGLBackend());