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// Copyright 2018 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/unittests/validation/ValidationTest.h"
#include "common/Constants.h"
#include "utils/WGPUHelpers.h"
#include <cmath>
namespace {
class RenderPassDescriptorValidationTest : public ValidationTest {
public:
void AssertBeginRenderPassSuccess(const wgpu::RenderPassDescriptor* descriptor) {
wgpu::CommandEncoder commandEncoder = TestBeginRenderPass(descriptor);
commandEncoder.Finish();
}
void AssertBeginRenderPassError(const wgpu::RenderPassDescriptor* descriptor) {
wgpu::CommandEncoder commandEncoder = TestBeginRenderPass(descriptor);
ASSERT_DEVICE_ERROR(commandEncoder.Finish());
}
private:
wgpu::CommandEncoder TestBeginRenderPass(const wgpu::RenderPassDescriptor* descriptor) {
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder renderPassEncoder = commandEncoder.BeginRenderPass(descriptor);
renderPassEncoder.EndPass();
return commandEncoder;
}
};
wgpu::Texture CreateTexture(wgpu::Device& device,
wgpu::TextureDimension dimension,
wgpu::TextureFormat format,
uint32_t width,
uint32_t height,
uint32_t arrayLayerCount,
uint32_t mipLevelCount,
uint32_t sampleCount = 1,
wgpu::TextureUsage usage = wgpu::TextureUsage::RenderAttachment) {
wgpu::TextureDescriptor descriptor;
descriptor.dimension = dimension;
descriptor.size.width = width;
descriptor.size.height = height;
descriptor.size.depthOrArrayLayers = arrayLayerCount;
descriptor.sampleCount = sampleCount;
descriptor.format = format;
descriptor.mipLevelCount = mipLevelCount;
descriptor.usage = usage;
return device.CreateTexture(&descriptor);
}
wgpu::TextureView Create2DAttachment(wgpu::Device& device,
uint32_t width,
uint32_t height,
wgpu::TextureFormat format) {
wgpu::Texture texture =
CreateTexture(device, wgpu::TextureDimension::e2D, format, width, height, 1, 1);
return texture.CreateView();
}
// Using BeginRenderPass with no attachments isn't valid
TEST_F(RenderPassDescriptorValidationTest, Empty) {
utils::ComboRenderPassDescriptor renderPass({}, nullptr);
AssertBeginRenderPassError(&renderPass);
}
// A render pass with only one color or one depth attachment is ok
TEST_F(RenderPassDescriptorValidationTest, OneAttachment) {
// One color attachment
{
wgpu::TextureView color =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
utils::ComboRenderPassDescriptor renderPass({color});
AssertBeginRenderPassSuccess(&renderPass);
}
// One depth-stencil attachment
{
wgpu::TextureView depthStencil =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth24PlusStencil8);
utils::ComboRenderPassDescriptor renderPass({}, depthStencil);
AssertBeginRenderPassSuccess(&renderPass);
}
}
// Test OOB color attachment indices are handled
TEST_F(RenderPassDescriptorValidationTest, ColorAttachmentOutOfBounds) {
std::array<wgpu::RenderPassColorAttachment, kMaxColorAttachments + 1> colorAttachments;
for (uint32_t i = 0; i < colorAttachments.size(); i++) {
colorAttachments[i].view =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
colorAttachments[i].resolveTarget = nullptr;
colorAttachments[i].clearColor = {0.0f, 0.0f, 0.0f, 0.0f};
colorAttachments[i].loadOp = wgpu::LoadOp::Clear;
colorAttachments[i].storeOp = wgpu::StoreOp::Store;
}
// Control case: kMaxColorAttachments is valid.
{
wgpu::RenderPassDescriptor renderPass;
renderPass.colorAttachmentCount = kMaxColorAttachments;
renderPass.colorAttachments = colorAttachments.data();
renderPass.depthStencilAttachment = nullptr;
AssertBeginRenderPassSuccess(&renderPass);
}
// Error case: kMaxColorAttachments + 1 is an error.
{
wgpu::RenderPassDescriptor renderPass;
renderPass.colorAttachmentCount = kMaxColorAttachments + 1;
renderPass.colorAttachments = colorAttachments.data();
renderPass.depthStencilAttachment = nullptr;
AssertBeginRenderPassError(&renderPass);
}
}
// Check that the render pass color attachment must have the RenderAttachment usage.
TEST_F(RenderPassDescriptorValidationTest, ColorAttachmentInvalidUsage) {
// Control case: using a texture with RenderAttachment is valid.
{
wgpu::TextureView renderView =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
utils::ComboRenderPassDescriptor renderPass({renderView});
AssertBeginRenderPassSuccess(&renderPass);
}
// Error case: using a texture with Sampled is invalid.
{
wgpu::TextureDescriptor texDesc;
texDesc.usage = wgpu::TextureUsage::TextureBinding;
texDesc.size = {1, 1, 1};
texDesc.format = wgpu::TextureFormat::RGBA8Unorm;
wgpu::Texture sampledTex = device.CreateTexture(&texDesc);
utils::ComboRenderPassDescriptor renderPass({sampledTex.CreateView()});
AssertBeginRenderPassError(&renderPass);
}
}
// Attachments must have the same size
TEST_F(RenderPassDescriptorValidationTest, SizeMustMatch) {
wgpu::TextureView color1x1A =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
wgpu::TextureView color1x1B =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
wgpu::TextureView color2x2 =
Create2DAttachment(device, 2, 2, wgpu::TextureFormat::RGBA8Unorm);
wgpu::TextureView depthStencil1x1 =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth24PlusStencil8);
wgpu::TextureView depthStencil2x2 =
Create2DAttachment(device, 2, 2, wgpu::TextureFormat::Depth24PlusStencil8);
// Control case: all the same size (1x1)
{
utils::ComboRenderPassDescriptor renderPass({color1x1A, color1x1B}, depthStencil1x1);
AssertBeginRenderPassSuccess(&renderPass);
}
// One of the color attachments has a different size
{
utils::ComboRenderPassDescriptor renderPass({color1x1A, color2x2});
AssertBeginRenderPassError(&renderPass);
}
// The depth stencil attachment has a different size
{
utils::ComboRenderPassDescriptor renderPass({color1x1A, color1x1B}, depthStencil2x2);
AssertBeginRenderPassError(&renderPass);
}
}
// Attachments formats must match whether they are used for color or depth-stencil
TEST_F(RenderPassDescriptorValidationTest, FormatMismatch) {
wgpu::TextureView color = Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
wgpu::TextureView depthStencil =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth24PlusStencil8);
// Using depth-stencil for color
{
utils::ComboRenderPassDescriptor renderPass({depthStencil});
AssertBeginRenderPassError(&renderPass);
}
// Using color for depth-stencil
{
utils::ComboRenderPassDescriptor renderPass({}, color);
AssertBeginRenderPassError(&renderPass);
}
}
// Depth and stencil storeOps can be different
TEST_F(RenderPassDescriptorValidationTest, DepthStencilStoreOpMismatch) {
constexpr uint32_t kArrayLayers = 1;
constexpr uint32_t kLevelCount = 1;
constexpr uint32_t kSize = 32;
constexpr wgpu::TextureFormat kColorFormat = wgpu::TextureFormat::RGBA8Unorm;
constexpr wgpu::TextureFormat kDepthStencilFormat =
wgpu::TextureFormat::Depth24PlusStencil8;
wgpu::Texture colorTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::Texture depthStencilTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kDepthStencilFormat, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::TextureViewDescriptor descriptor;
descriptor.dimension = wgpu::TextureViewDimension::e2D;
descriptor.baseArrayLayer = 0;
descriptor.arrayLayerCount = kArrayLayers;
descriptor.baseMipLevel = 0;
descriptor.mipLevelCount = kLevelCount;
wgpu::TextureView colorTextureView = colorTexture.CreateView(&descriptor);
wgpu::TextureView depthStencilView = depthStencilTexture.CreateView(&descriptor);
// Base case: StoreOps match so render pass is a success
{
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Store;
AssertBeginRenderPassSuccess(&renderPass);
}
// Base case: StoreOps match so render pass is a success
{
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Discard;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Discard;
AssertBeginRenderPassSuccess(&renderPass);
}
// StoreOps mismatch still is a success
{
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Discard;
AssertBeginRenderPassSuccess(&renderPass);
}
}
// Currently only texture views with arrayLayerCount == 1 are allowed to be color and depth
// stencil attachments
TEST_F(RenderPassDescriptorValidationTest, TextureViewLayerCountForColorAndDepthStencil) {
constexpr uint32_t kLevelCount = 1;
constexpr uint32_t kSize = 32;
constexpr wgpu::TextureFormat kColorFormat = wgpu::TextureFormat::RGBA8Unorm;
constexpr wgpu::TextureFormat kDepthStencilFormat =
wgpu::TextureFormat::Depth24PlusStencil8;
constexpr uint32_t kArrayLayers = 10;
wgpu::Texture colorTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::Texture depthStencilTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kDepthStencilFormat, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::TextureViewDescriptor baseDescriptor;
baseDescriptor.dimension = wgpu::TextureViewDimension::e2DArray;
baseDescriptor.baseArrayLayer = 0;
baseDescriptor.arrayLayerCount = kArrayLayers;
baseDescriptor.baseMipLevel = 0;
baseDescriptor.mipLevelCount = kLevelCount;
// Using 2D array texture view with arrayLayerCount > 1 is not allowed for color
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kColorFormat;
descriptor.arrayLayerCount = 5;
wgpu::TextureView colorTextureView = colorTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({colorTextureView});
AssertBeginRenderPassError(&renderPass);
}
// Using 2D array texture view with arrayLayerCount > 1 is not allowed for depth stencil
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kDepthStencilFormat;
descriptor.arrayLayerCount = 5;
wgpu::TextureView depthStencilView = depthStencilTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
AssertBeginRenderPassError(&renderPass);
}
// Using 2D array texture view that covers the first layer of the texture is OK for color
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kColorFormat;
descriptor.baseArrayLayer = 0;
descriptor.arrayLayerCount = 1;
wgpu::TextureView colorTextureView = colorTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({colorTextureView});
AssertBeginRenderPassSuccess(&renderPass);
}
// Using 2D array texture view that covers the first layer is OK for depth stencil
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kDepthStencilFormat;
descriptor.baseArrayLayer = 0;
descriptor.arrayLayerCount = 1;
wgpu::TextureView depthStencilView = depthStencilTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
AssertBeginRenderPassSuccess(&renderPass);
}
// Using 2D array texture view that covers the last layer is OK for color
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kColorFormat;
descriptor.baseArrayLayer = kArrayLayers - 1;
descriptor.arrayLayerCount = 1;
wgpu::TextureView colorTextureView = colorTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({colorTextureView});
AssertBeginRenderPassSuccess(&renderPass);
}
// Using 2D array texture view that covers the last layer is OK for depth stencil
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kDepthStencilFormat;
descriptor.baseArrayLayer = kArrayLayers - 1;
descriptor.arrayLayerCount = 1;
wgpu::TextureView depthStencilView = depthStencilTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
AssertBeginRenderPassSuccess(&renderPass);
}
}
// Check that the render pass depth attachment must have the RenderAttachment usage.
TEST_F(RenderPassDescriptorValidationTest, DepthAttachmentInvalidUsage) {
// Control case: using a texture with RenderAttachment is valid.
{
wgpu::TextureView renderView =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth32Float);
utils::ComboRenderPassDescriptor renderPass({}, renderView);
AssertBeginRenderPassSuccess(&renderPass);
}
// Error case: using a texture with Sampled is invalid.
{
wgpu::TextureDescriptor texDesc;
texDesc.usage = wgpu::TextureUsage::TextureBinding;
texDesc.size = {1, 1, 1};
texDesc.format = wgpu::TextureFormat::Depth32Float;
wgpu::Texture sampledTex = device.CreateTexture(&texDesc);
wgpu::TextureView sampledView = sampledTex.CreateView();
utils::ComboRenderPassDescriptor renderPass({}, sampledView);
AssertBeginRenderPassError(&renderPass);
}
}
// Only 2D texture views with mipLevelCount == 1 are allowed to be color attachments
TEST_F(RenderPassDescriptorValidationTest, TextureViewLevelCountForColorAndDepthStencil) {
constexpr uint32_t kArrayLayers = 1;
constexpr uint32_t kSize = 32;
constexpr wgpu::TextureFormat kColorFormat = wgpu::TextureFormat::RGBA8Unorm;
constexpr wgpu::TextureFormat kDepthStencilFormat =
wgpu::TextureFormat::Depth24PlusStencil8;
constexpr uint32_t kLevelCount = 4;
wgpu::Texture colorTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::Texture depthStencilTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kDepthStencilFormat, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::TextureViewDescriptor baseDescriptor;
baseDescriptor.dimension = wgpu::TextureViewDimension::e2D;
baseDescriptor.baseArrayLayer = 0;
baseDescriptor.arrayLayerCount = kArrayLayers;
baseDescriptor.baseMipLevel = 0;
baseDescriptor.mipLevelCount = kLevelCount;
// Using 2D texture view with mipLevelCount > 1 is not allowed for color
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kColorFormat;
descriptor.mipLevelCount = 2;
wgpu::TextureView colorTextureView = colorTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({colorTextureView});
AssertBeginRenderPassError(&renderPass);
}
// Using 2D texture view with mipLevelCount > 1 is not allowed for depth stencil
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kDepthStencilFormat;
descriptor.mipLevelCount = 2;
wgpu::TextureView depthStencilView = depthStencilTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
AssertBeginRenderPassError(&renderPass);
}
// Using 2D texture view that covers the first level of the texture is OK for color
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kColorFormat;
descriptor.baseMipLevel = 0;
descriptor.mipLevelCount = 1;
wgpu::TextureView colorTextureView = colorTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({colorTextureView});
AssertBeginRenderPassSuccess(&renderPass);
}
// Using 2D texture view that covers the first level is OK for depth stencil
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kDepthStencilFormat;
descriptor.baseMipLevel = 0;
descriptor.mipLevelCount = 1;
wgpu::TextureView depthStencilView = depthStencilTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
AssertBeginRenderPassSuccess(&renderPass);
}
// Using 2D texture view that covers the last level is OK for color
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kColorFormat;
descriptor.baseMipLevel = kLevelCount - 1;
descriptor.mipLevelCount = 1;
wgpu::TextureView colorTextureView = colorTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({colorTextureView});
AssertBeginRenderPassSuccess(&renderPass);
}
// Using 2D texture view that covers the last level is OK for depth stencil
{
wgpu::TextureViewDescriptor descriptor = baseDescriptor;
descriptor.format = kDepthStencilFormat;
descriptor.baseMipLevel = kLevelCount - 1;
descriptor.mipLevelCount = 1;
wgpu::TextureView depthStencilView = depthStencilTexture.CreateView(&descriptor);
utils::ComboRenderPassDescriptor renderPass({}, depthStencilView);
AssertBeginRenderPassSuccess(&renderPass);
}
}
// It is not allowed to set resolve target when the color attachment is non-multisampled.
TEST_F(RenderPassDescriptorValidationTest, NonMultisampledColorWithResolveTarget) {
static constexpr uint32_t kArrayLayers = 1;
static constexpr uint32_t kLevelCount = 1;
static constexpr uint32_t kSize = 32;
static constexpr uint32_t kSampleCount = 1;
static constexpr wgpu::TextureFormat kColorFormat = wgpu::TextureFormat::RGBA8Unorm;
wgpu::Texture colorTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount, kSampleCount);
wgpu::Texture resolveTargetTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount, kSampleCount);
wgpu::TextureView colorTextureView = colorTexture.CreateView();
wgpu::TextureView resolveTargetTextureView = resolveTargetTexture.CreateView();
utils::ComboRenderPassDescriptor renderPass({colorTextureView});
renderPass.cColorAttachments[0].resolveTarget = resolveTargetTextureView;
AssertBeginRenderPassError(&renderPass);
}
class MultisampledRenderPassDescriptorValidationTest
: public RenderPassDescriptorValidationTest {
public:
utils::ComboRenderPassDescriptor CreateMultisampledRenderPass() {
return utils::ComboRenderPassDescriptor({CreateMultisampledColorTextureView()});
}
wgpu::TextureView CreateMultisampledColorTextureView() {
return CreateColorTextureView(kSampleCount);
}
wgpu::TextureView CreateNonMultisampledColorTextureView() {
return CreateColorTextureView(1);
}
static constexpr uint32_t kArrayLayers = 1;
static constexpr uint32_t kLevelCount = 1;
static constexpr uint32_t kSize = 32;
static constexpr uint32_t kSampleCount = 4;
static constexpr wgpu::TextureFormat kColorFormat = wgpu::TextureFormat::RGBA8Unorm;
private:
wgpu::TextureView CreateColorTextureView(uint32_t sampleCount) {
wgpu::Texture colorTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount, sampleCount);
return colorTexture.CreateView();
}
};
// Tests on the use of multisampled textures as color attachments
TEST_F(MultisampledRenderPassDescriptorValidationTest, MultisampledColorAttachments) {
wgpu::TextureView colorTextureView = CreateNonMultisampledColorTextureView();
wgpu::TextureView resolveTargetTextureView = CreateNonMultisampledColorTextureView();
wgpu::TextureView multisampledColorTextureView = CreateMultisampledColorTextureView();
// It is allowed to use a multisampled color attachment without setting resolve target.
{
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
AssertBeginRenderPassSuccess(&renderPass);
}
// It is not allowed to use multiple color attachments with different sample counts.
{
utils::ComboRenderPassDescriptor renderPass(
{multisampledColorTextureView, colorTextureView});
AssertBeginRenderPassError(&renderPass);
}
}
// It is not allowed to use a multisampled resolve target.
TEST_F(MultisampledRenderPassDescriptorValidationTest, MultisampledResolveTarget) {
wgpu::TextureView multisampledResolveTargetView = CreateMultisampledColorTextureView();
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = multisampledResolveTargetView;
AssertBeginRenderPassError(&renderPass);
}
// It is not allowed to use a resolve target with array layer count > 1.
TEST_F(MultisampledRenderPassDescriptorValidationTest, ResolveTargetArrayLayerMoreThanOne) {
constexpr uint32_t kArrayLayers2 = 2;
wgpu::Texture resolveTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers2, kLevelCount);
wgpu::TextureViewDescriptor viewDesc;
viewDesc.dimension = wgpu::TextureViewDimension::e2DArray;
wgpu::TextureView resolveTextureView = resolveTexture.CreateView(&viewDesc);
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = resolveTextureView;
AssertBeginRenderPassError(&renderPass);
}
// It is not allowed to use a resolve target with mipmap level count > 1.
TEST_F(MultisampledRenderPassDescriptorValidationTest, ResolveTargetMipmapLevelMoreThanOne) {
constexpr uint32_t kLevelCount2 = 2;
wgpu::Texture resolveTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount2);
wgpu::TextureView resolveTextureView = resolveTexture.CreateView();
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = resolveTextureView;
AssertBeginRenderPassError(&renderPass);
}
// It is not allowed to use a resolve target which is created from a texture whose usage does
// not include wgpu::TextureUsage::RenderAttachment.
TEST_F(MultisampledRenderPassDescriptorValidationTest, ResolveTargetUsageNoRenderAttachment) {
constexpr wgpu::TextureUsage kUsage =
wgpu::TextureUsage::CopyDst | wgpu::TextureUsage::CopySrc;
wgpu::Texture nonColorUsageResolveTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount, 1, kUsage);
wgpu::TextureView nonColorUsageResolveTextureView =
nonColorUsageResolveTexture.CreateView();
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = nonColorUsageResolveTextureView;
AssertBeginRenderPassError(&renderPass);
}
// It is not allowed to use a resolve target which is in error state.
TEST_F(MultisampledRenderPassDescriptorValidationTest, ResolveTargetInErrorState) {
wgpu::Texture resolveTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::TextureViewDescriptor errorTextureView;
errorTextureView.dimension = wgpu::TextureViewDimension::e2D;
errorTextureView.format = kColorFormat;
errorTextureView.baseArrayLayer = kArrayLayers + 1;
ASSERT_DEVICE_ERROR(wgpu::TextureView errorResolveTarget =
resolveTexture.CreateView(&errorTextureView));
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = errorResolveTarget;
AssertBeginRenderPassError(&renderPass);
}
// It is allowed to use a multisampled color attachment and a non-multisampled resolve target.
TEST_F(MultisampledRenderPassDescriptorValidationTest, MultisampledColorWithResolveTarget) {
wgpu::TextureView resolveTargetTextureView = CreateNonMultisampledColorTextureView();
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = resolveTargetTextureView;
AssertBeginRenderPassSuccess(&renderPass);
}
// It is not allowed to use a resolve target in a format different from the color attachment.
TEST_F(MultisampledRenderPassDescriptorValidationTest, ResolveTargetDifferentFormat) {
constexpr wgpu::TextureFormat kColorFormat2 = wgpu::TextureFormat::BGRA8Unorm;
wgpu::Texture resolveTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat2, kSize, kSize,
kArrayLayers, kLevelCount);
wgpu::TextureView resolveTextureView = resolveTexture.CreateView();
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = resolveTextureView;
AssertBeginRenderPassError(&renderPass);
}
// Tests on the size of the resolve target.
TEST_F(MultisampledRenderPassDescriptorValidationTest,
ColorAttachmentResolveTargetDimensionMismatch) {
constexpr uint32_t kSize2 = kSize * 2;
wgpu::Texture resolveTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kColorFormat, kSize2, kSize2,
kArrayLayers, kLevelCount + 1);
wgpu::TextureViewDescriptor textureViewDescriptor;
textureViewDescriptor.nextInChain = nullptr;
textureViewDescriptor.dimension = wgpu::TextureViewDimension::e2D;
textureViewDescriptor.format = kColorFormat;
textureViewDescriptor.mipLevelCount = 1;
textureViewDescriptor.baseArrayLayer = 0;
textureViewDescriptor.arrayLayerCount = 1;
{
wgpu::TextureViewDescriptor firstMipLevelDescriptor = textureViewDescriptor;
firstMipLevelDescriptor.baseMipLevel = 0;
wgpu::TextureView resolveTextureView =
resolveTexture.CreateView(&firstMipLevelDescriptor);
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = resolveTextureView;
AssertBeginRenderPassError(&renderPass);
}
{
wgpu::TextureViewDescriptor secondMipLevelDescriptor = textureViewDescriptor;
secondMipLevelDescriptor.baseMipLevel = 1;
wgpu::TextureView resolveTextureView =
resolveTexture.CreateView(&secondMipLevelDescriptor);
utils::ComboRenderPassDescriptor renderPass = CreateMultisampledRenderPass();
renderPass.cColorAttachments[0].resolveTarget = resolveTextureView;
AssertBeginRenderPassSuccess(&renderPass);
}
}
// Tests on the sample count of depth stencil attachment.
TEST_F(MultisampledRenderPassDescriptorValidationTest, DepthStencilAttachmentSampleCount) {
constexpr wgpu::TextureFormat kDepthStencilFormat =
wgpu::TextureFormat::Depth24PlusStencil8;
wgpu::Texture multisampledDepthStencilTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kDepthStencilFormat, kSize, kSize,
kArrayLayers, kLevelCount, kSampleCount);
wgpu::TextureView multisampledDepthStencilTextureView =
multisampledDepthStencilTexture.CreateView();
// It is not allowed to use a depth stencil attachment whose sample count is different from
// the one of the color attachment.
{
wgpu::Texture depthStencilTexture =
CreateTexture(device, wgpu::TextureDimension::e2D, kDepthStencilFormat, kSize,
kSize, kArrayLayers, kLevelCount);
wgpu::TextureView depthStencilTextureView = depthStencilTexture.CreateView();
utils::ComboRenderPassDescriptor renderPass({CreateMultisampledColorTextureView()},
depthStencilTextureView);
AssertBeginRenderPassError(&renderPass);
}
{
utils::ComboRenderPassDescriptor renderPass({CreateNonMultisampledColorTextureView()},
multisampledDepthStencilTextureView);
AssertBeginRenderPassError(&renderPass);
}
// It is allowed to use a multisampled depth stencil attachment whose sample count is equal
// to the one of the color attachment.
{
utils::ComboRenderPassDescriptor renderPass({CreateMultisampledColorTextureView()},
multisampledDepthStencilTextureView);
AssertBeginRenderPassSuccess(&renderPass);
}
// It is allowed to use a multisampled depth stencil attachment while there is no color
// attachment.
{
utils::ComboRenderPassDescriptor renderPass({}, multisampledDepthStencilTextureView);
AssertBeginRenderPassSuccess(&renderPass);
}
}
// Tests that NaN cannot be accepted as a valid color or depth clear value and INFINITY is valid
// in both color and depth clear values.
TEST_F(RenderPassDescriptorValidationTest, UseNaNOrINFINITYAsColorOrDepthClearValue) {
wgpu::TextureView color = Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
// Tests that NaN cannot be used in clearColor.
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.r = NAN;
AssertBeginRenderPassError(&renderPass);
}
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.g = NAN;
AssertBeginRenderPassError(&renderPass);
}
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.b = NAN;
AssertBeginRenderPassError(&renderPass);
}
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.a = NAN;
AssertBeginRenderPassError(&renderPass);
}
// Tests that INFINITY can be used in clearColor.
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.r = INFINITY;
AssertBeginRenderPassSuccess(&renderPass);
}
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.g = INFINITY;
AssertBeginRenderPassSuccess(&renderPass);
}
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.b = INFINITY;
AssertBeginRenderPassSuccess(&renderPass);
}
{
utils::ComboRenderPassDescriptor renderPass({color}, nullptr);
renderPass.cColorAttachments[0].clearColor.a = INFINITY;
AssertBeginRenderPassSuccess(&renderPass);
}
// Tests that NaN cannot be used in clearDepth.
{
wgpu::TextureView depth =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth24Plus);
utils::ComboRenderPassDescriptor renderPass({color}, depth);
renderPass.cDepthStencilAttachmentInfo.clearDepth = NAN;
AssertBeginRenderPassError(&renderPass);
}
// Tests that INFINITY can be used in clearDepth.
{
wgpu::TextureView depth =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth24Plus);
utils::ComboRenderPassDescriptor renderPass({color}, depth);
renderPass.cDepthStencilAttachmentInfo.clearDepth = INFINITY;
AssertBeginRenderPassSuccess(&renderPass);
}
// TODO(https://crbug.com/dawn/666): Add a test case for clearStencil for stencilOnly
// once stencil8 is supported.
}
TEST_F(RenderPassDescriptorValidationTest, ValidateDepthStencilReadOnly) {
wgpu::TextureView colorView =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::RGBA8Unorm);
wgpu::TextureView depthStencilView =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth24PlusStencil8);
wgpu::TextureView depthStencilViewNoStencil =
Create2DAttachment(device, 1, 1, wgpu::TextureFormat::Depth24Plus);
// Tests that a read-only pass with depthReadOnly set to true succeeds.
{
utils::ComboRenderPassDescriptor renderPass({colorView}, depthStencilView);
renderPass.cDepthStencilAttachmentInfo.depthLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.depthReadOnly = true;
renderPass.cDepthStencilAttachmentInfo.stencilLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.stencilReadOnly = true;
AssertBeginRenderPassSuccess(&renderPass);
}
// Tests that a pass with mismatched depthReadOnly and stencilReadOnly values passes when
// there is no stencil component in the format.
{
utils::ComboRenderPassDescriptor renderPass({colorView}, depthStencilViewNoStencil);
renderPass.cDepthStencilAttachmentInfo.depthLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.depthReadOnly = true;
renderPass.cDepthStencilAttachmentInfo.stencilLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.stencilReadOnly = false;
AssertBeginRenderPassSuccess(&renderPass);
}
// TODO(https://crbug.com/dawn/666): Add a test case for stencil-only once stencil8 is
// supported (depthReadOnly and stencilReadOnly mismatch but no depth component).
// Tests that a pass with mismatched depthReadOnly and stencilReadOnly values fails when
// both depth and stencil components exist.
{
utils::ComboRenderPassDescriptor renderPass({colorView}, depthStencilView);
renderPass.cDepthStencilAttachmentInfo.depthLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.depthReadOnly = true;
renderPass.cDepthStencilAttachmentInfo.stencilLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.stencilReadOnly = false;
AssertBeginRenderPassError(&renderPass);
}
// Tests that a pass with loadOp set to clear and readOnly set to true fails.
{
utils::ComboRenderPassDescriptor renderPass({colorView}, depthStencilView);
renderPass.cDepthStencilAttachmentInfo.depthLoadOp = wgpu::LoadOp::Clear;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.depthReadOnly = true;
renderPass.cDepthStencilAttachmentInfo.stencilLoadOp = wgpu::LoadOp::Clear;
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Store;
renderPass.cDepthStencilAttachmentInfo.stencilReadOnly = true;
AssertBeginRenderPassError(&renderPass);
}
// Tests that a pass with storeOp set to discard and readOnly set to true fails.
{
utils::ComboRenderPassDescriptor renderPass({colorView}, depthStencilView);
renderPass.cDepthStencilAttachmentInfo.depthLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.depthStoreOp = wgpu::StoreOp::Discard;
renderPass.cDepthStencilAttachmentInfo.depthReadOnly = true;
renderPass.cDepthStencilAttachmentInfo.stencilLoadOp = wgpu::LoadOp::Load;
renderPass.cDepthStencilAttachmentInfo.stencilStoreOp = wgpu::StoreOp::Discard;
renderPass.cDepthStencilAttachmentInfo.stencilReadOnly = true;
AssertBeginRenderPassError(&renderPass);
}
}
// Check that the depth stencil attachment must use all aspects.
TEST_F(RenderPassDescriptorValidationTest, ValidateDepthStencilAllAspects) {
wgpu::TextureDescriptor texDesc;
texDesc.usage = wgpu::TextureUsage::RenderAttachment;
texDesc.size = {1, 1, 1};
wgpu::TextureViewDescriptor viewDesc;
viewDesc.baseMipLevel = 0;
viewDesc.mipLevelCount = 1;
viewDesc.baseArrayLayer = 0;
viewDesc.arrayLayerCount = 1;
// Using all aspects of a depth+stencil texture is allowed.
{
texDesc.format = wgpu::TextureFormat::Depth24PlusStencil8;
viewDesc.aspect = wgpu::TextureAspect::All;
wgpu::TextureView view = device.CreateTexture(&texDesc).CreateView(&viewDesc);
utils::ComboRenderPassDescriptor renderPass({}, view);
AssertBeginRenderPassSuccess(&renderPass);
}
// Using only depth of a depth+stencil texture is an error.
{
texDesc.format = wgpu::TextureFormat::Depth24PlusStencil8;
viewDesc.aspect = wgpu::TextureAspect::DepthOnly;
wgpu::TextureView view = device.CreateTexture(&texDesc).CreateView(&viewDesc);
utils::ComboRenderPassDescriptor renderPass({}, view);
AssertBeginRenderPassError(&renderPass);
}
// Using only stencil of a depth+stencil texture is an error.
{
texDesc.format = wgpu::TextureFormat::Depth24PlusStencil8;
viewDesc.aspect = wgpu::TextureAspect::StencilOnly;
wgpu::TextureView view = device.CreateTexture(&texDesc).CreateView(&viewDesc);
utils::ComboRenderPassDescriptor renderPass({}, view);
AssertBeginRenderPassError(&renderPass);
}
// Using DepthOnly of a depth only texture is allowed.
{
texDesc.format = wgpu::TextureFormat::Depth24Plus;
viewDesc.aspect = wgpu::TextureAspect::DepthOnly;
wgpu::TextureView view = device.CreateTexture(&texDesc).CreateView(&viewDesc);
utils::ComboRenderPassDescriptor renderPass({}, view);
AssertBeginRenderPassSuccess(&renderPass);
}
// TODO(https://crbug.com/dawn/666): Add a test case for stencil-only on stencil8 once this
// format is supported.
}
// TODO(cwallez@chromium.org): Constraints on attachment aliasing?
} // anonymous namespace