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dawn-cmake/src/tests/unittests/validation/BindGroupValidationTests.cpp
Corentin Wallez 441f10a4db Remove deprecated BindGroupLayout options. 
Bug: dawn:527
Change-Id: I169dd0b80b006a326f5d8f121a49de6d6ac7b768
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/32024
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
2020-11-25 08:57:44 +00:00

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// Copyright 2017 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/Assert.h"
#include "common/Constants.h"
#include "utils/ComboRenderPipelineDescriptor.h"
#include "utils/WGPUHelpers.h"
class BindGroupValidationTest : public ValidationTest {
public:
wgpu::Texture CreateTexture(wgpu::TextureUsage usage,
wgpu::TextureFormat format,
uint32_t layerCount) {
wgpu::TextureDescriptor descriptor;
descriptor.dimension = wgpu::TextureDimension::e2D;
descriptor.size = {16, 16, layerCount};
descriptor.sampleCount = 1;
descriptor.mipLevelCount = 1;
descriptor.usage = usage;
descriptor.format = format;
return device.CreateTexture(&descriptor);
}
void SetUp() override {
ValidationTest::SetUp();
// Create objects to use as resources inside test bind groups.
{
wgpu::BufferDescriptor descriptor;
descriptor.size = 1024;
descriptor.usage = wgpu::BufferUsage::Uniform;
mUBO = device.CreateBuffer(&descriptor);
}
{
wgpu::BufferDescriptor descriptor;
descriptor.size = 1024;
descriptor.usage = wgpu::BufferUsage::Storage;
mSSBO = device.CreateBuffer(&descriptor);
}
{
wgpu::SamplerDescriptor descriptor = utils::GetDefaultSamplerDescriptor();
mSampler = device.CreateSampler(&descriptor);
}
{
mSampledTexture =
CreateTexture(wgpu::TextureUsage::Sampled, wgpu::TextureFormat::RGBA8Unorm, 1);
mSampledTextureView = mSampledTexture.CreateView();
}
}
protected:
wgpu::Buffer mUBO;
wgpu::Buffer mSSBO;
wgpu::Sampler mSampler;
wgpu::Texture mSampledTexture;
wgpu::TextureView mSampledTextureView;
};
// Test the validation of BindGroupDescriptor::nextInChain
TEST_F(BindGroupValidationTest, NextInChainNullptr) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(device, {});
wgpu::BindGroupDescriptor descriptor;
descriptor.layout = layout;
descriptor.entryCount = 0;
descriptor.entries = nullptr;
// Control case: check that nextInChain = nullptr is valid
descriptor.nextInChain = nullptr;
device.CreateBindGroup(&descriptor);
// Check that nextInChain != nullptr is an error.
wgpu::ChainedStruct chainedDescriptor;
descriptor.nextInChain = &chainedDescriptor;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
}
// Check constraints on entryCount
TEST_F(BindGroupValidationTest, EntryCountMismatch) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
// Control case: check that a descriptor with one binding is ok
utils::MakeBindGroup(device, layout, {{0, mSampler}});
// Check that entryCount != layout.entryCount fails.
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {}));
}
// Check constraints on BindGroupEntry::binding
TEST_F(BindGroupValidationTest, WrongBindings) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
// Control case: check that a descriptor with a binding matching the layout's is ok
utils::MakeBindGroup(device, layout, {{0, mSampler}});
// Check that binding must be present in the layout
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{1, mSampler}}));
}
// Check that the same binding cannot be set twice
TEST_F(BindGroupValidationTest, BindingSetTwice) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler},
{1, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
// Control case: check that different bindings work
utils::MakeBindGroup(device, layout, {{0, mSampler}, {1, mSampler}});
// Check that setting the same binding twice is invalid
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, mSampler}, {0, mSampler}}));
}
// Check that a sampler binding must contain exactly one sampler
TEST_F(BindGroupValidationTest, SamplerBindingType) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
wgpu::BindGroupEntry binding;
binding.binding = 0;
binding.sampler = nullptr;
binding.textureView = nullptr;
binding.buffer = nullptr;
binding.offset = 0;
binding.size = 0;
wgpu::BindGroupDescriptor descriptor;
descriptor.layout = layout;
descriptor.entryCount = 1;
descriptor.entries = &binding;
// Not setting anything fails
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
// Control case: setting just the sampler works
binding.sampler = mSampler;
device.CreateBindGroup(&descriptor);
// Setting the texture view as well is an error
binding.textureView = mSampledTextureView;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.textureView = nullptr;
// Setting the buffer as well is an error
binding.buffer = mUBO;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.buffer = nullptr;
// Setting the sampler to an error sampler is an error.
{
wgpu::SamplerDescriptor samplerDesc = utils::GetDefaultSamplerDescriptor();
samplerDesc.minFilter = static_cast<wgpu::FilterMode>(0xFFFFFFFF);
wgpu::Sampler errorSampler;
ASSERT_DEVICE_ERROR(errorSampler = device.CreateSampler(&samplerDesc));
binding.sampler = errorSampler;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.sampler = nullptr;
}
}
// Check that a texture binding must contain exactly a texture view
TEST_F(BindGroupValidationTest, TextureBindingType) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture}});
wgpu::BindGroupEntry binding;
binding.binding = 0;
binding.sampler = nullptr;
binding.textureView = nullptr;
binding.buffer = nullptr;
binding.offset = 0;
binding.size = 0;
wgpu::BindGroupDescriptor descriptor;
descriptor.layout = layout;
descriptor.entryCount = 1;
descriptor.entries = &binding;
// Not setting anything fails
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
// Control case: setting just the texture view works
binding.textureView = mSampledTextureView;
device.CreateBindGroup(&descriptor);
// Setting the sampler as well is an error
binding.sampler = mSampler;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.textureView = nullptr;
// Setting the buffer as well is an error
binding.buffer = mUBO;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.buffer = nullptr;
// Setting the texture view to an error texture view is an error.
{
wgpu::TextureViewDescriptor viewDesc;
viewDesc.format = wgpu::TextureFormat::RGBA8Unorm;
viewDesc.dimension = wgpu::TextureViewDimension::e2D;
viewDesc.baseMipLevel = 0;
viewDesc.mipLevelCount = 0;
viewDesc.baseArrayLayer = 0;
viewDesc.arrayLayerCount = 1000;
wgpu::TextureView errorView;
ASSERT_DEVICE_ERROR(errorView = mSampledTexture.CreateView(&viewDesc));
binding.textureView = errorView;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.textureView = nullptr;
}
}
// Check that a buffer binding must contain exactly a buffer
TEST_F(BindGroupValidationTest, BufferBindingType) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::UniformBuffer}});
wgpu::BindGroupEntry binding;
binding.binding = 0;
binding.sampler = nullptr;
binding.textureView = nullptr;
binding.buffer = nullptr;
binding.offset = 0;
binding.size = 1024;
wgpu::BindGroupDescriptor descriptor;
descriptor.layout = layout;
descriptor.entryCount = 1;
descriptor.entries = &binding;
// Not setting anything fails
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
// Control case: setting just the buffer works
binding.buffer = mUBO;
device.CreateBindGroup(&descriptor);
// Setting the texture view as well is an error
binding.textureView = mSampledTextureView;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.textureView = nullptr;
// Setting the sampler as well is an error
binding.sampler = mSampler;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.sampler = nullptr;
// Setting the buffer to an error buffer is an error.
{
wgpu::BufferDescriptor bufferDesc;
bufferDesc.size = 1024;
bufferDesc.usage = static_cast<wgpu::BufferUsage>(0xFFFFFFFF);
wgpu::Buffer errorBuffer;
ASSERT_DEVICE_ERROR(errorBuffer = device.CreateBuffer(&bufferDesc));
binding.buffer = errorBuffer;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.buffer = nullptr;
}
}
// Check that a texture must have the correct usage
TEST_F(BindGroupValidationTest, TextureUsage) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture}});
// Control case: setting a sampleable texture view works.
utils::MakeBindGroup(device, layout, {{0, mSampledTextureView}});
// Make an output attachment texture and try to set it for a SampledTexture binding
wgpu::Texture outputTexture =
CreateTexture(wgpu::TextureUsage::RenderAttachment, wgpu::TextureFormat::RGBA8Unorm, 1);
wgpu::TextureView outputTextureView = outputTexture.CreateView();
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, outputTextureView}}));
}
// Check that a texture must have the correct component type
TEST_F(BindGroupValidationTest, TextureComponentType) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::Float}});
// Control case: setting a Float typed texture view works.
utils::MakeBindGroup(device, layout, {{0, mSampledTextureView}});
// Make a Uint component typed texture and try to set it to a Float component binding.
wgpu::Texture uintTexture =
CreateTexture(wgpu::TextureUsage::Sampled, wgpu::TextureFormat::RGBA8Uint, 1);
wgpu::TextureView uintTextureView = uintTexture.CreateView();
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, uintTextureView}}));
}
// Test which depth-stencil formats are allowed to be sampled (all).
TEST_F(BindGroupValidationTest, SamplingDepthStencilTexture) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture}});
wgpu::TextureDescriptor desc;
desc.size = {1, 1, 1};
desc.usage = wgpu::TextureUsage::Sampled;
// Depth32Float is allowed to be sampled.
{
desc.format = wgpu::TextureFormat::Depth32Float;
wgpu::Texture texture = device.CreateTexture(&desc);
utils::MakeBindGroup(device, layout, {{0, texture.CreateView()}});
}
// Depth24Plus is allowed to be sampled.
{
desc.format = wgpu::TextureFormat::Depth24Plus;
wgpu::Texture texture = device.CreateTexture(&desc);
utils::MakeBindGroup(device, layout, {{0, texture.CreateView()}});
}
// Depth24PlusStencil8 is allowed to be sampled, if the depth or stencil aspect is selected.
{
desc.format = wgpu::TextureFormat::Depth24PlusStencil8;
wgpu::Texture texture = device.CreateTexture(&desc);
wgpu::TextureViewDescriptor viewDesc = {};
viewDesc.aspect = wgpu::TextureAspect::DepthOnly;
utils::MakeBindGroup(device, layout, {{0, texture.CreateView(&viewDesc)}});
wgpu::BindGroupLayoutEntry entry = {0, wgpu::ShaderStage::Fragment,
wgpu::BindingType::SampledTexture};
entry.textureComponentType = wgpu::TextureComponentType::Uint;
layout = utils::MakeBindGroupLayout(device, {entry});
viewDesc.aspect = wgpu::TextureAspect::StencilOnly;
utils::MakeBindGroup(device, layout, {{0, texture.CreateView(&viewDesc)}});
}
}
// Check that a texture must have a correct format for DepthComparison
TEST_F(BindGroupValidationTest, TextureComponentTypeDepthComparison) {
wgpu::BindGroupLayout depthLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::DepthComparison}});
// Control case: setting a depth texture works.
wgpu::Texture depthTexture =
CreateTexture(wgpu::TextureUsage::Sampled, wgpu::TextureFormat::Depth32Float, 1);
utils::MakeBindGroup(device, depthLayout, {{0, depthTexture.CreateView()}});
// Error case: setting a Float typed texture view fails.
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, depthLayout, {{0, mSampledTextureView}}));
}
// Check that a depth texture is allowed to be used for both TextureComponentType::Float and
// ::DepthComparison
TEST_F(BindGroupValidationTest, TextureComponentTypeForDepthTexture) {
wgpu::BindGroupLayout depthLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::DepthComparison}});
wgpu::BindGroupLayout floatLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::Float}});
wgpu::Texture depthTexture =
CreateTexture(wgpu::TextureUsage::Sampled, wgpu::TextureFormat::Depth32Float, 1);
utils::MakeBindGroup(device, depthLayout, {{0, depthTexture.CreateView()}});
utils::MakeBindGroup(device, floatLayout, {{0, depthTexture.CreateView()}});
}
// Check that a texture must have the correct dimension
TEST_F(BindGroupValidationTest, TextureDimension) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::Float}});
// Control case: setting a 2D texture view works.
utils::MakeBindGroup(device, layout, {{0, mSampledTextureView}});
// Make a 2DArray texture and try to set it to a 2D binding.
wgpu::Texture arrayTexture =
CreateTexture(wgpu::TextureUsage::Sampled, wgpu::TextureFormat::RGBA8Uint, 2);
wgpu::TextureView arrayTextureView = arrayTexture.CreateView();
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, arrayTextureView}}));
}
// Check that a UBO must have the correct usage
TEST_F(BindGroupValidationTest, BufferUsageUBO) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::UniformBuffer}});
// Control case: using a buffer with the uniform usage works
utils::MakeBindGroup(device, layout, {{0, mUBO, 0, 256}});
// Using a buffer without the uniform usage fails
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, mSSBO, 0, 256}}));
}
// Check that a SSBO must have the correct usage
TEST_F(BindGroupValidationTest, BufferUsageSSBO) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::StorageBuffer}});
// Control case: using a buffer with the storage usage works
utils::MakeBindGroup(device, layout, {{0, mSSBO, 0, 256}});
// Using a buffer without the storage usage fails
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, mUBO, 0, 256}}));
}
// Check that a readonly SSBO must have the correct usage
TEST_F(BindGroupValidationTest, BufferUsageReadonlySSBO) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ReadonlyStorageBuffer}});
// Control case: using a buffer with the storage usage works
utils::MakeBindGroup(device, layout, {{0, mSSBO, 0, 256}});
// Using a buffer without the storage usage fails
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, mUBO, 0, 256}}));
}
// Tests constraints on the buffer offset for bind groups.
TEST_F(BindGroupValidationTest, BufferOffsetAlignment) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
});
// Check that offset 0 is valid
utils::MakeBindGroup(device, layout, {{0, mUBO, 0, 512}});
// Check that offset 256 (aligned) is valid
utils::MakeBindGroup(device, layout, {{0, mUBO, 256, 256}});
// Check cases where unaligned buffer offset is invalid
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, mUBO, 1, 256}}));
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, mUBO, 128, 256}}));
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, mUBO, 255, 256}}));
}
// Tests constraints on the texture for MultisampledTexture bindings
TEST_F(BindGroupValidationTest, MultisampledTexture) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::MultisampledTexture, false, 0,
wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::Float}});
wgpu::BindGroupEntry binding;
binding.binding = 0;
binding.sampler = nullptr;
binding.textureView = nullptr;
binding.buffer = nullptr;
binding.offset = 0;
binding.size = 0;
wgpu::BindGroupDescriptor descriptor;
descriptor.layout = layout;
descriptor.entryCount = 1;
descriptor.entries = &binding;
// Not setting anything fails
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
// Control case: setting a multisampled 2D texture works
wgpu::TextureDescriptor textureDesc;
textureDesc.sampleCount = 4;
textureDesc.usage = wgpu::TextureUsage::Sampled;
textureDesc.dimension = wgpu::TextureDimension::e2D;
textureDesc.format = wgpu::TextureFormat::RGBA8Unorm;
textureDesc.size = {1, 1, 1};
wgpu::Texture msTexture = device.CreateTexture(&textureDesc);
binding.textureView = msTexture.CreateView();
device.CreateBindGroup(&descriptor);
binding.textureView = nullptr;
// Error case: setting a single sampled 2D texture is an error.
binding.textureView = mSampledTextureView;
ASSERT_DEVICE_ERROR(device.CreateBindGroup(&descriptor));
binding.textureView = nullptr;
}
// Tests constraints to be sure the buffer binding fits in the buffer
TEST_F(BindGroupValidationTest, BufferBindingOOB) {
wgpu::BindGroupLayout layout = utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
});
wgpu::BufferDescriptor descriptor;
descriptor.size = 1024;
descriptor.usage = wgpu::BufferUsage::Uniform;
wgpu::Buffer buffer = device.CreateBuffer(&descriptor);
// Success case, touching the start of the buffer works
utils::MakeBindGroup(device, layout, {{0, buffer, 0, 256}});
// Success case, touching the end of the buffer works
utils::MakeBindGroup(device, layout, {{0, buffer, 3 * 256, 256}});
// Error case, zero size is invalid.
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, buffer, 1024, 0}}));
// Success case, touching the full buffer works
utils::MakeBindGroup(device, layout, {{0, buffer, 0, 1024}});
utils::MakeBindGroup(device, layout, {{0, buffer, 0, wgpu::kWholeSize}});
// Success case, whole size causes the rest of the buffer to be used but not beyond.
utils::MakeBindGroup(device, layout, {{0, buffer, 256, wgpu::kWholeSize}});
// Error case, offset is OOB
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, buffer, 256 * 5, 0}}));
// Error case, size is OOB
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, buffer, 0, 256 * 5}}));
// Error case, offset+size is OOB
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, layout, {{0, buffer, 1024, 256}}));
// Error case, offset+size overflows to be 0
ASSERT_DEVICE_ERROR(
utils::MakeBindGroup(device, layout, {{0, buffer, 256, uint32_t(0) - uint32_t(256)}}));
}
// Tests constraints to be sure the uniform buffer binding isn't too large
TEST_F(BindGroupValidationTest, MaxUniformBufferBindingSize) {
wgpu::BufferDescriptor descriptor;
descriptor.size = 2 * kMaxUniformBufferBindingSize;
descriptor.usage = wgpu::BufferUsage::Uniform | wgpu::BufferUsage::Storage;
wgpu::Buffer buffer = device.CreateBuffer(&descriptor);
wgpu::BindGroupLayout uniformLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer}});
// Success case, this is exactly the limit
utils::MakeBindGroup(device, uniformLayout, {{0, buffer, 0, kMaxUniformBufferBindingSize}});
wgpu::BindGroupLayout doubleUniformLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
{1, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer}});
// Success case, individual bindings don't exceed the limit
utils::MakeBindGroup(device, doubleUniformLayout,
{{0, buffer, 0, kMaxUniformBufferBindingSize},
{1, buffer, kMaxUniformBufferBindingSize, kMaxUniformBufferBindingSize}});
// Error case, this is above the limit
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, uniformLayout,
{{0, buffer, 0, kMaxUniformBufferBindingSize + 1}}));
// Making sure the constraint doesn't apply to storage buffers
wgpu::BindGroupLayout readonlyStorageLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ReadonlyStorageBuffer}});
wgpu::BindGroupLayout storageLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::StorageBuffer}});
// Success case, storage buffer can still be created.
utils::MakeBindGroup(device, readonlyStorageLayout,
{{0, buffer, 0, 2 * kMaxUniformBufferBindingSize}});
utils::MakeBindGroup(device, storageLayout, {{0, buffer, 0, 2 * kMaxUniformBufferBindingSize}});
}
// Test what happens when the layout is an error.
TEST_F(BindGroupValidationTest, ErrorLayout) {
wgpu::BindGroupLayout goodLayout = utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
});
wgpu::BindGroupLayout errorLayout;
ASSERT_DEVICE_ERROR(
errorLayout = utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
}));
// Control case, creating with the good layout works
utils::MakeBindGroup(device, goodLayout, {{0, mUBO, 0, 256}});
// Creating with an error layout fails
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, errorLayout, {{0, mUBO, 0, 256}}));
}
class BindGroupLayoutValidationTest : public ValidationTest {
public:
wgpu::BindGroupLayout MakeBindGroupLayout(wgpu::BindGroupLayoutEntry* binding, uint32_t count) {
wgpu::BindGroupLayoutDescriptor descriptor;
descriptor.entryCount = count;
descriptor.entries = binding;
return device.CreateBindGroupLayout(&descriptor);
}
void TestCreateBindGroupLayout(wgpu::BindGroupLayoutEntry* binding,
uint32_t count,
bool expected) {
wgpu::BindGroupLayoutDescriptor descriptor;
descriptor.entryCount = count;
descriptor.entries = binding;
if (!expected) {
ASSERT_DEVICE_ERROR(device.CreateBindGroupLayout(&descriptor));
} else {
device.CreateBindGroupLayout(&descriptor);
}
}
void TestCreatePipelineLayout(wgpu::BindGroupLayout* bgl, uint32_t count, bool expected) {
wgpu::PipelineLayoutDescriptor descriptor;
descriptor.bindGroupLayoutCount = count;
descriptor.bindGroupLayouts = bgl;
if (!expected) {
ASSERT_DEVICE_ERROR(device.CreatePipelineLayout(&descriptor));
} else {
device.CreatePipelineLayout(&descriptor);
}
}
};
// Tests setting storage buffer and readonly storage buffer bindings in vertex and fragment shader.
TEST_F(BindGroupLayoutValidationTest, BindGroupLayoutStorageBindingsInVertexShader) {
// Checks that storage buffer binding is not supported in vertex shader.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::StorageBuffer}}));
utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::ReadonlyStorageBuffer}});
utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::StorageBuffer}});
utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ReadonlyStorageBuffer}});
}
// Tests setting that bind group layout bindings numbers may be very large.
TEST_F(BindGroupLayoutValidationTest, BindGroupLayoutEntryNumberLarge) {
// Checks that uint32_t max is valid.
utils::MakeBindGroupLayout(device,
{{std::numeric_limits<uint32_t>::max(), wgpu::ShaderStage::Vertex,
wgpu::BindingType::UniformBuffer}});
}
// This test verifies that the BindGroupLayout bindings are correctly validated, even if the
// binding ids are out-of-order.
TEST_F(BindGroupLayoutValidationTest, BindGroupEntry) {
utils::MakeBindGroupLayout(device,
{
{1, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
});
}
// Check that dynamic = true is only allowed with buffer bindings.
TEST_F(BindGroupLayoutValidationTest, DynamicAndTypeCompatibility) {
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::UniformBuffer, true},
});
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::StorageBuffer, true},
});
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::ReadonlyStorageBuffer, true},
});
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::SampledTexture, true},
}));
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::Sampler, true},
}));
}
// This test verifies that visibility of bindings in BindGroupLayout can be none
TEST_F(BindGroupLayoutValidationTest, BindGroupLayoutVisibilityNone) {
utils::MakeBindGroupLayout(device,
{
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
});
wgpu::BindGroupLayoutEntry binding = {0, wgpu::ShaderStage::None,
wgpu::BindingType::UniformBuffer};
wgpu::BindGroupLayoutDescriptor descriptor;
descriptor.entryCount = 1;
descriptor.entries = &binding;
device.CreateBindGroupLayout(&descriptor);
}
// This test verifies that binding with none visibility in bind group layout can be supported in
// bind group
TEST_F(BindGroupLayoutValidationTest, BindGroupLayoutVisibilityNoneExpectsBindGroupEntry) {
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Vertex, wgpu::BindingType::UniformBuffer},
{1, wgpu::ShaderStage::None, wgpu::BindingType::UniformBuffer},
});
wgpu::BufferDescriptor descriptor;
descriptor.size = 4;
descriptor.usage = wgpu::BufferUsage::Uniform;
wgpu::Buffer buffer = device.CreateBuffer(&descriptor);
utils::MakeBindGroup(device, bgl, {{0, buffer}, {1, buffer}});
ASSERT_DEVICE_ERROR(utils::MakeBindGroup(device, bgl, {{0, buffer}}));
}
TEST_F(BindGroupLayoutValidationTest, PerStageLimits) {
struct TestInfo {
uint32_t maxCount;
wgpu::BindingType bindingType;
wgpu::BindingType otherBindingType;
};
constexpr TestInfo kTestInfos[] = {
{kMaxSampledTexturesPerShaderStage, wgpu::BindingType::SampledTexture,
wgpu::BindingType::UniformBuffer},
{kMaxSamplersPerShaderStage, wgpu::BindingType::Sampler, wgpu::BindingType::UniformBuffer},
{kMaxSamplersPerShaderStage, wgpu::BindingType::ComparisonSampler,
wgpu::BindingType::UniformBuffer},
{kMaxStorageBuffersPerShaderStage, wgpu::BindingType::StorageBuffer,
wgpu::BindingType::UniformBuffer},
{kMaxStorageTexturesPerShaderStage, wgpu::BindingType::ReadonlyStorageTexture,
wgpu::BindingType::UniformBuffer},
{kMaxStorageTexturesPerShaderStage, wgpu::BindingType::WriteonlyStorageTexture,
wgpu::BindingType::UniformBuffer},
{kMaxUniformBuffersPerShaderStage, wgpu::BindingType::UniformBuffer,
wgpu::BindingType::SampledTexture},
};
for (TestInfo info : kTestInfos) {
wgpu::BindGroupLayout bgl[2];
std::vector<wgpu::BindGroupLayoutEntry> maxBindings;
auto PopulateEntry = [](wgpu::BindGroupLayoutEntry entry) {
switch (entry.type) {
case wgpu::BindingType::ReadonlyStorageTexture:
case wgpu::BindingType::WriteonlyStorageTexture:
entry.storageTextureFormat = wgpu::TextureFormat::RGBA8Unorm;
break;
default:
break;
}
return entry;
};
for (uint32_t i = 0; i < info.maxCount; ++i) {
maxBindings.push_back(PopulateEntry({i, wgpu::ShaderStage::Compute, info.bindingType}));
}
// Creating with the maxes works.
bgl[0] = MakeBindGroupLayout(maxBindings.data(), maxBindings.size());
// Adding an extra binding of a different type works.
{
std::vector<wgpu::BindGroupLayoutEntry> bindings = maxBindings;
bindings.push_back(
PopulateEntry({info.maxCount, wgpu::ShaderStage::Compute, info.otherBindingType}));
MakeBindGroupLayout(bindings.data(), bindings.size());
}
// Adding an extra binding of the maxed type in a different stage works
{
std::vector<wgpu::BindGroupLayoutEntry> bindings = maxBindings;
bindings.push_back(
PopulateEntry({info.maxCount, wgpu::ShaderStage::Fragment, info.bindingType}));
MakeBindGroupLayout(bindings.data(), bindings.size());
}
// Adding an extra binding of the maxed type and stage exceeds the per stage limit.
{
std::vector<wgpu::BindGroupLayoutEntry> bindings = maxBindings;
bindings.push_back(
PopulateEntry({info.maxCount, wgpu::ShaderStage::Compute, info.bindingType}));
ASSERT_DEVICE_ERROR(MakeBindGroupLayout(bindings.data(), bindings.size()));
}
// Creating a pipeline layout from the valid BGL works.
TestCreatePipelineLayout(bgl, 1, true);
// Adding an extra binding of a different type in a different BGL works
bgl[1] = utils::MakeBindGroupLayout(
device, {PopulateEntry({0, wgpu::ShaderStage::Compute, info.otherBindingType})});
TestCreatePipelineLayout(bgl, 2, true);
// Adding an extra binding of the maxed type in a different stage works
bgl[1] = utils::MakeBindGroupLayout(
device, {PopulateEntry({0, wgpu::ShaderStage::Fragment, info.bindingType})});
TestCreatePipelineLayout(bgl, 2, true);
// Adding an extra binding of the maxed type in a different BGL exceeds the per stage limit.
bgl[1] = utils::MakeBindGroupLayout(
device, {PopulateEntry({0, wgpu::ShaderStage::Compute, info.bindingType})});
TestCreatePipelineLayout(bgl, 2, false);
}
}
// Check that dynamic buffer numbers exceed maximum value in one bind group layout.
TEST_F(BindGroupLayoutValidationTest, DynamicBufferNumberLimit) {
wgpu::BindGroupLayout bgl[2];
std::vector<wgpu::BindGroupLayoutEntry> maxUniformDB;
std::vector<wgpu::BindGroupLayoutEntry> maxStorageDB;
std::vector<wgpu::BindGroupLayoutEntry> maxReadonlyStorageDB;
// In this test, we use all the same shader stage. Ensure that this does not exceed the
// per-stage limit.
static_assert(kMaxDynamicUniformBuffersPerPipelineLayout <= kMaxUniformBuffersPerShaderStage,
"");
static_assert(kMaxDynamicStorageBuffersPerPipelineLayout <= kMaxStorageBuffersPerShaderStage,
"");
for (uint32_t i = 0; i < kMaxDynamicUniformBuffersPerPipelineLayout; ++i) {
maxUniformDB.push_back(
{i, wgpu::ShaderStage::Compute, wgpu::BindingType::UniformBuffer, true});
}
for (uint32_t i = 0; i < kMaxDynamicStorageBuffersPerPipelineLayout; ++i) {
maxStorageDB.push_back(
{i, wgpu::ShaderStage::Compute, wgpu::BindingType::StorageBuffer, true});
}
for (uint32_t i = 0; i < kMaxDynamicStorageBuffersPerPipelineLayout; ++i) {
maxReadonlyStorageDB.push_back(
{i, wgpu::ShaderStage::Compute, wgpu::BindingType::ReadonlyStorageBuffer, true});
}
// Test creating with the maxes works
{
bgl[0] = MakeBindGroupLayout(maxUniformDB.data(), maxUniformDB.size());
TestCreatePipelineLayout(bgl, 1, true);
bgl[0] = MakeBindGroupLayout(maxStorageDB.data(), maxStorageDB.size());
TestCreatePipelineLayout(bgl, 1, true);
bgl[0] = MakeBindGroupLayout(maxReadonlyStorageDB.data(), maxReadonlyStorageDB.size());
TestCreatePipelineLayout(bgl, 1, true);
}
// The following tests exceed the per-pipeline layout limits. We use the Fragment stage to
// ensure we don't hit the per-stage limit.
// Check dynamic uniform buffers exceed maximum in pipeline layout.
{
bgl[0] = MakeBindGroupLayout(maxUniformDB.data(), maxUniformDB.size());
bgl[1] = utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::UniformBuffer, true},
});
TestCreatePipelineLayout(bgl, 2, false);
}
// Check dynamic storage buffers exceed maximum in pipeline layout
{
bgl[0] = MakeBindGroupLayout(maxStorageDB.data(), maxStorageDB.size());
bgl[1] = utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::StorageBuffer, true},
});
TestCreatePipelineLayout(bgl, 2, false);
}
// Check dynamic readonly storage buffers exceed maximum in pipeline layout
{
bgl[0] = MakeBindGroupLayout(maxReadonlyStorageDB.data(), maxReadonlyStorageDB.size());
bgl[1] = utils::MakeBindGroupLayout(
device,
{
{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ReadonlyStorageBuffer, true},
});
TestCreatePipelineLayout(bgl, 2, false);
}
// Check dynamic storage buffers + dynamic readonly storage buffers exceed maximum storage
// buffers in pipeline layout
{
bgl[0] = MakeBindGroupLayout(maxStorageDB.data(), maxStorageDB.size());
bgl[1] = utils::MakeBindGroupLayout(
device,
{
{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ReadonlyStorageBuffer, true},
});
TestCreatePipelineLayout(bgl, 2, false);
}
// Check dynamic uniform buffers exceed maximum in bind group layout.
{
maxUniformDB.push_back({kMaxDynamicUniformBuffersPerPipelineLayout,
wgpu::ShaderStage::Fragment, wgpu::BindingType::UniformBuffer,
true});
TestCreateBindGroupLayout(maxUniformDB.data(), maxUniformDB.size(), false);
}
// Check dynamic storage buffers exceed maximum in bind group layout.
{
maxStorageDB.push_back({kMaxDynamicStorageBuffersPerPipelineLayout,
wgpu::ShaderStage::Fragment, wgpu::BindingType::StorageBuffer,
true});
TestCreateBindGroupLayout(maxStorageDB.data(), maxStorageDB.size(), false);
}
// Check dynamic readonly storage buffers exceed maximum in bind group layout.
{
maxReadonlyStorageDB.push_back({kMaxDynamicStorageBuffersPerPipelineLayout,
wgpu::ShaderStage::Fragment,
wgpu::BindingType::ReadonlyStorageBuffer, true});
TestCreateBindGroupLayout(maxReadonlyStorageDB.data(), maxReadonlyStorageDB.size(), false);
}
}
// Test that multisampled textures must be 2D sampled textures
TEST_F(BindGroupLayoutValidationTest, MultisampledTextureViewDimension) {
// Multisampled 2D texture works.
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e2D},
});
// Multisampled 2D (defaulted) texture works.
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::Undefined},
});
// Multisampled 2D array texture is invalid.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e2DArray},
}));
// Multisampled cube texture is invalid.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::Cube},
}));
// Multisampled cube array texture is invalid.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::CubeArray},
}));
// Multisampled 3D texture is invalid.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e3D},
}));
// Multisampled 1D texture is invalid.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e1D},
}));
}
// Test that multisampled textures cannot be DepthComparison
TEST_F(BindGroupLayoutValidationTest, MultisampledTextureComponentType) {
// Multisampled float component type works.
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::Float},
});
// Multisampled float (defaulted) component type works.
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e2D},
});
// Multisampled uint component type works.
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::Uint},
});
// Multisampled sint component type works.
utils::MakeBindGroupLayout(
device, {
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false,
0, wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::Sint},
});
// Multisampled depth comparison component typeworks.
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(
device,
{
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::MultisampledTexture, false, 0,
wgpu::TextureViewDimension::e2D, wgpu::TextureComponentType::DepthComparison},
}));
}
constexpr uint64_t kBufferSize = 3 * kMinDynamicBufferOffsetAlignment + 8;
constexpr uint32_t kBindingSize = 9;
class SetBindGroupValidationTest : public ValidationTest {
public:
void SetUp() override {
ValidationTest::SetUp();
mBindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::UniformBuffer, true},
{1, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::UniformBuffer, false},
{2, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer, true},
{3, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::ReadonlyStorageBuffer, true}});
}
wgpu::Buffer CreateBuffer(uint64_t bufferSize, wgpu::BufferUsage usage) {
wgpu::BufferDescriptor bufferDescriptor;
bufferDescriptor.size = bufferSize;
bufferDescriptor.usage = usage;
return device.CreateBuffer(&bufferDescriptor);
}
wgpu::BindGroupLayout mBindGroupLayout;
wgpu::RenderPipeline CreateRenderPipeline() {
wgpu::ShaderModule vsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Vertex, R"(
#version 450
void main() {
})");
wgpu::ShaderModule fsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Fragment, R"(
#version 450
layout(std140, set = 0, binding = 0) uniform uBufferDynamic {
vec2 value0;
};
layout(std140, set = 0, binding = 1) uniform uBuffer {
vec2 value1;
};
layout(std140, set = 0, binding = 2) buffer SBufferDynamic {
vec2 value2;
} sBuffer;
layout(std140, set = 0, binding = 3) readonly buffer RBufferDynamic {
vec2 value3;
} rBuffer;
layout(location = 0) out vec4 fragColor;
void main() {
})");
utils::ComboRenderPipelineDescriptor pipelineDescriptor(device);
pipelineDescriptor.vertexStage.module = vsModule;
pipelineDescriptor.cFragmentStage.module = fsModule;
wgpu::PipelineLayout pipelineLayout =
utils::MakeBasicPipelineLayout(device, &mBindGroupLayout);
pipelineDescriptor.layout = pipelineLayout;
return device.CreateRenderPipeline(&pipelineDescriptor);
}
wgpu::ComputePipeline CreateComputePipeline() {
wgpu::ShaderModule csModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Compute, R"(
#version 450
const uint kTileSize = 4;
const uint kInstances = 11;
layout(local_size_x = kTileSize, local_size_y = kTileSize, local_size_z = 1) in;
layout(std140, set = 0, binding = 0) uniform UniformBufferDynamic {
float value0;
};
layout(std140, set = 0, binding = 1) uniform UniformBuffer {
float value1;
};
layout(std140, set = 0, binding = 2) buffer SBufferDynamic {
float value2;
} dst;
layout(std140, set = 0, binding = 3) readonly buffer RBufferDynamic {
readonly float value3;
} rdst;
void main() {
})");
wgpu::PipelineLayout pipelineLayout =
utils::MakeBasicPipelineLayout(device, &mBindGroupLayout);
wgpu::ComputePipelineDescriptor csDesc;
csDesc.layout = pipelineLayout;
csDesc.computeStage.module = csModule;
csDesc.computeStage.entryPoint = "main";
return device.CreateComputePipeline(&csDesc);
}
void TestRenderPassBindGroup(wgpu::BindGroup bindGroup,
uint32_t* offsets,
uint32_t count,
bool expectation) {
wgpu::RenderPipeline renderPipeline = CreateRenderPipeline();
DummyRenderPass renderPass(device);
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder renderPassEncoder = commandEncoder.BeginRenderPass(&renderPass);
renderPassEncoder.SetPipeline(renderPipeline);
if (bindGroup != nullptr) {
renderPassEncoder.SetBindGroup(0, bindGroup, count, offsets);
}
renderPassEncoder.Draw(3);
renderPassEncoder.EndPass();
if (!expectation) {
ASSERT_DEVICE_ERROR(commandEncoder.Finish());
} else {
commandEncoder.Finish();
}
}
void TestComputePassBindGroup(wgpu::BindGroup bindGroup,
uint32_t* offsets,
uint32_t count,
bool expectation) {
wgpu::ComputePipeline computePipeline = CreateComputePipeline();
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePassEncoder = commandEncoder.BeginComputePass();
computePassEncoder.SetPipeline(computePipeline);
if (bindGroup != nullptr) {
computePassEncoder.SetBindGroup(0, bindGroup, count, offsets);
}
computePassEncoder.Dispatch(1);
computePassEncoder.EndPass();
if (!expectation) {
ASSERT_DEVICE_ERROR(commandEncoder.Finish());
} else {
commandEncoder.Finish();
}
}
};
// This is the test case that should work.
TEST_F(SetBindGroupValidationTest, Basic) {
// Set up the bind group.
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
std::array<uint32_t, 3> offsets = {512, 256, 0};
TestRenderPassBindGroup(bindGroup, offsets.data(), 3, true);
TestComputePassBindGroup(bindGroup, offsets.data(), 3, true);
}
// Draw/dispatch with a bind group missing is invalid
TEST_F(SetBindGroupValidationTest, MissingBindGroup) {
TestRenderPassBindGroup(nullptr, nullptr, 0, false);
TestComputePassBindGroup(nullptr, nullptr, 0, false);
}
// Setting bind group after a draw / dispatch should re-verify the layout is compatible
TEST_F(SetBindGroupValidationTest, VerifyGroupIfChangedAfterAction) {
// Set up the bind group
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
std::array<uint32_t, 3> offsets = {512, 256, 0};
// Set up bind group that is incompatible
wgpu::BindGroupLayout invalidLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer}});
wgpu::BindGroup invalidGroup =
utils::MakeBindGroup(device, invalidLayout, {{0, storageBuffer, 0, kBindingSize}});
{
wgpu::ComputePipeline computePipeline = CreateComputePipeline();
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePassEncoder = commandEncoder.BeginComputePass();
computePassEncoder.SetPipeline(computePipeline);
computePassEncoder.SetBindGroup(0, bindGroup, 3, offsets.data());
computePassEncoder.Dispatch(1);
computePassEncoder.SetBindGroup(0, invalidGroup, 0, nullptr);
computePassEncoder.Dispatch(1);
computePassEncoder.EndPass();
ASSERT_DEVICE_ERROR(commandEncoder.Finish());
}
{
wgpu::RenderPipeline renderPipeline = CreateRenderPipeline();
DummyRenderPass renderPass(device);
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder renderPassEncoder = commandEncoder.BeginRenderPass(&renderPass);
renderPassEncoder.SetPipeline(renderPipeline);
renderPassEncoder.SetBindGroup(0, bindGroup, 3, offsets.data());
renderPassEncoder.Draw(3);
renderPassEncoder.SetBindGroup(0, invalidGroup, 0, nullptr);
renderPassEncoder.Draw(3);
renderPassEncoder.EndPass();
ASSERT_DEVICE_ERROR(commandEncoder.Finish());
}
}
// Test cases that test dynamic offsets count mismatch with bind group layout.
TEST_F(SetBindGroupValidationTest, DynamicOffsetsMismatch) {
// Set up bind group.
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
// Number of offsets mismatch.
std::array<uint32_t, 4> mismatchOffsets = {768, 512, 256, 0};
TestRenderPassBindGroup(bindGroup, mismatchOffsets.data(), 1, false);
TestRenderPassBindGroup(bindGroup, mismatchOffsets.data(), 2, false);
TestRenderPassBindGroup(bindGroup, mismatchOffsets.data(), 4, false);
TestComputePassBindGroup(bindGroup, mismatchOffsets.data(), 1, false);
TestComputePassBindGroup(bindGroup, mismatchOffsets.data(), 2, false);
TestComputePassBindGroup(bindGroup, mismatchOffsets.data(), 4, false);
}
// Test cases that test dynamic offsets not aligned
TEST_F(SetBindGroupValidationTest, DynamicOffsetsNotAligned) {
// Set up bind group.
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
// Dynamic offsets are not aligned.
std::array<uint32_t, 3> notAlignedOffsets = {512, 128, 0};
TestRenderPassBindGroup(bindGroup, notAlignedOffsets.data(), 3, false);
TestComputePassBindGroup(bindGroup, notAlignedOffsets.data(), 3, false);
}
// Test cases that test dynamic uniform buffer out of bound situation.
TEST_F(SetBindGroupValidationTest, OffsetOutOfBoundDynamicUniformBuffer) {
// Set up bind group.
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
// Dynamic offset + offset is larger than buffer size.
std::array<uint32_t, 3> overFlowOffsets = {1024, 256, 0};
TestRenderPassBindGroup(bindGroup, overFlowOffsets.data(), 3, false);
TestComputePassBindGroup(bindGroup, overFlowOffsets.data(), 3, false);
}
// Test cases that test dynamic storage buffer out of bound situation.
TEST_F(SetBindGroupValidationTest, OffsetOutOfBoundDynamicStorageBuffer) {
// Set up bind group.
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
// Dynamic offset + offset is larger than buffer size.
std::array<uint32_t, 3> overFlowOffsets = {0, 256, 1024};
TestRenderPassBindGroup(bindGroup, overFlowOffsets.data(), 3, false);
TestComputePassBindGroup(bindGroup, overFlowOffsets.data(), 3, false);
}
// Test cases that test dynamic uniform buffer out of bound situation because of binding size.
TEST_F(SetBindGroupValidationTest, BindingSizeOutOfBoundDynamicUniformBuffer) {
// Set up bind group, but binding size is larger than
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
// Dynamic offset + offset isn't larger than buffer size.
// But with binding size, it will trigger OOB error.
std::array<uint32_t, 3> offsets = {768, 256, 0};
TestRenderPassBindGroup(bindGroup, offsets.data(), 3, false);
TestComputePassBindGroup(bindGroup, offsets.data(), 3, false);
}
// Test cases that test dynamic storage buffer out of bound situation because of binding size.
TEST_F(SetBindGroupValidationTest, BindingSizeOutOfBoundDynamicStorageBuffer) {
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::Buffer readonlyStorageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, mBindGroupLayout,
{{0, uniformBuffer, 0, kBindingSize},
{1, uniformBuffer, 0, kBindingSize},
{2, storageBuffer, 0, kBindingSize},
{3, readonlyStorageBuffer, 0, kBindingSize}});
// Dynamic offset + offset isn't larger than buffer size.
// But with binding size, it will trigger OOB error.
std::array<uint32_t, 3> offsets = {0, 256, 768};
TestRenderPassBindGroup(bindGroup, offsets.data(), 3, false);
TestComputePassBindGroup(bindGroup, offsets.data(), 3, false);
}
// Regression test for crbug.com/dawn/408 where dynamic offsets were applied in the wrong order.
// Dynamic offsets should be applied in increasing order of binding number.
TEST_F(SetBindGroupValidationTest, DynamicOffsetOrder) {
// Note: The order of the binding numbers of the bind group and bind group layout are
// intentionally different and not in increasing order.
// This test uses both storage and uniform buffers to ensure buffer bindings are sorted first by
// binding number before type.
wgpu::BindGroupLayout bgl = utils::MakeBindGroupLayout(
device, {
{3, wgpu::ShaderStage::Compute, wgpu::BindingType::ReadonlyStorageBuffer, true},
{0, wgpu::ShaderStage::Compute, wgpu::BindingType::ReadonlyStorageBuffer, true},
{2, wgpu::ShaderStage::Compute, wgpu::BindingType::UniformBuffer, true},
});
// Create buffers which are 3x, 2x, and 1x the size of the minimum buffer offset, plus 4 bytes
// to spare (to avoid zero-sized bindings). We will offset the bindings so they reach the very
// end of the buffer. Any mismatch applying too-large of an offset to a smaller buffer will hit
// the out-of-bounds condition during validation.
wgpu::Buffer buffer3x =
CreateBuffer(3 * kMinDynamicBufferOffsetAlignment + 4, wgpu::BufferUsage::Storage);
wgpu::Buffer buffer2x =
CreateBuffer(2 * kMinDynamicBufferOffsetAlignment + 4, wgpu::BufferUsage::Storage);
wgpu::Buffer buffer1x =
CreateBuffer(1 * kMinDynamicBufferOffsetAlignment + 4, wgpu::BufferUsage::Uniform);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, bgl,
{
{0, buffer3x, 0, 4},
{3, buffer2x, 0, 4},
{2, buffer1x, 0, 4},
});
std::array<uint32_t, 3> offsets;
{
// Base case works.
offsets = {/* binding 0 */ 0,
/* binding 2 */ 0,
/* binding 3 */ 0};
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePassEncoder = commandEncoder.BeginComputePass();
computePassEncoder.SetBindGroup(0, bindGroup, offsets.size(), offsets.data());
computePassEncoder.EndPass();
commandEncoder.Finish();
}
{
// Offset the first binding to touch the end of the buffer. Should succeed.
// Will fail if the offset is applied to the first or second bindings since their buffers
// are too small.
offsets = {/* binding 0 */ 3 * kMinDynamicBufferOffsetAlignment,
/* binding 2 */ 0,
/* binding 3 */ 0};
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePassEncoder = commandEncoder.BeginComputePass();
computePassEncoder.SetBindGroup(0, bindGroup, offsets.size(), offsets.data());
computePassEncoder.EndPass();
commandEncoder.Finish();
}
{
// Offset the second binding to touch the end of the buffer. Should succeed.
offsets = {/* binding 0 */ 0,
/* binding 2 */ 1 * kMinDynamicBufferOffsetAlignment,
/* binding 3 */ 0};
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePassEncoder = commandEncoder.BeginComputePass();
computePassEncoder.SetBindGroup(0, bindGroup, offsets.size(), offsets.data());
computePassEncoder.EndPass();
commandEncoder.Finish();
}
{
// Offset the third binding to touch the end of the buffer. Should succeed.
// Will fail if the offset is applied to the second binding since its buffer
// is too small.
offsets = {/* binding 0 */ 0,
/* binding 2 */ 0,
/* binding 3 */ 2 * kMinDynamicBufferOffsetAlignment};
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePassEncoder = commandEncoder.BeginComputePass();
computePassEncoder.SetBindGroup(0, bindGroup, offsets.size(), offsets.data());
computePassEncoder.EndPass();
commandEncoder.Finish();
}
{
// Offset each binding to touch the end of their buffer. Should succeed.
offsets = {/* binding 0 */ 3 * kMinDynamicBufferOffsetAlignment,
/* binding 2 */ 1 * kMinDynamicBufferOffsetAlignment,
/* binding 3 */ 2 * kMinDynamicBufferOffsetAlignment};
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder computePassEncoder = commandEncoder.BeginComputePass();
computePassEncoder.SetBindGroup(0, bindGroup, offsets.size(), offsets.data());
computePassEncoder.EndPass();
commandEncoder.Finish();
}
}
// Test that an error is produced (and no ASSERTs fired) when using an error bindgroup in
// SetBindGroup
TEST_F(SetBindGroupValidationTest, ErrorBindGroup) {
// Bindgroup creation fails because not all bindings are specified.
wgpu::BindGroup bindGroup;
ASSERT_DEVICE_ERROR(bindGroup = utils::MakeBindGroup(device, mBindGroupLayout, {}));
TestRenderPassBindGroup(bindGroup, nullptr, 0, false);
TestComputePassBindGroup(bindGroup, nullptr, 0, false);
}
class SetBindGroupPersistenceValidationTest : public ValidationTest {
protected:
void SetUp() override {
ValidationTest::SetUp();
mVsModule = utils::CreateShaderModule(device, utils::SingleShaderStage::Vertex, R"(
#version 450
void main() {
})");
}
wgpu::Buffer CreateBuffer(uint64_t bufferSize, wgpu::BufferUsage usage) {
wgpu::BufferDescriptor bufferDescriptor;
bufferDescriptor.size = bufferSize;
bufferDescriptor.usage = usage;
return device.CreateBuffer(&bufferDescriptor);
}
// Generates bind group layouts and a pipeline from a 2D list of binding types.
std::tuple<std::vector<wgpu::BindGroupLayout>, wgpu::RenderPipeline> SetUpLayoutsAndPipeline(
std::vector<std::vector<wgpu::BindingType>> layouts) {
std::vector<wgpu::BindGroupLayout> bindGroupLayouts(layouts.size());
// Iterate through the desired bind group layouts.
for (uint32_t l = 0; l < layouts.size(); ++l) {
const auto& layout = layouts[l];
std::vector<wgpu::BindGroupLayoutEntry> bindings(layout.size());
// Iterate through binding types and populate a list of BindGroupLayoutEntrys.
for (uint32_t b = 0; b < layout.size(); ++b) {
bindings[b] = {b, wgpu::ShaderStage::Fragment, layout[b], false};
}
// Create the bind group layout.
wgpu::BindGroupLayoutDescriptor bglDescriptor;
bglDescriptor.entryCount = static_cast<uint32_t>(bindings.size());
bglDescriptor.entries = bindings.data();
bindGroupLayouts[l] = device.CreateBindGroupLayout(&bglDescriptor);
}
// Create a pipeline layout from the list of bind group layouts.
wgpu::PipelineLayoutDescriptor pipelineLayoutDescriptor;
pipelineLayoutDescriptor.bindGroupLayoutCount =
static_cast<uint32_t>(bindGroupLayouts.size());
pipelineLayoutDescriptor.bindGroupLayouts = bindGroupLayouts.data();
wgpu::PipelineLayout pipelineLayout =
device.CreatePipelineLayout(&pipelineLayoutDescriptor);
std::stringstream ss;
ss << "#version 450\n";
// Build a shader which has bindings that match the pipeline layout.
for (uint32_t l = 0; l < layouts.size(); ++l) {
const auto& layout = layouts[l];
for (uint32_t b = 0; b < layout.size(); ++b) {
wgpu::BindingType binding = layout[b];
ss << "layout(std140, set = " << l << ", binding = " << b << ") ";
switch (binding) {
case wgpu::BindingType::StorageBuffer:
ss << "buffer SBuffer";
break;
case wgpu::BindingType::UniformBuffer:
ss << "uniform UBuffer";
break;
default:
UNREACHABLE();
}
ss << l << "_" << b << " { vec2 set" << l << "_binding" << b << "; };\n";
}
}
ss << "layout(location = 0) out vec4 fragColor;\n";
ss << "void main() { fragColor = vec4(0.0, 1.0, 0.0, 1.0); }\n";
wgpu::ShaderModule fsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Fragment, ss.str().c_str());
utils::ComboRenderPipelineDescriptor pipelineDescriptor(device);
pipelineDescriptor.vertexStage.module = mVsModule;
pipelineDescriptor.cFragmentStage.module = fsModule;
pipelineDescriptor.layout = pipelineLayout;
wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&pipelineDescriptor);
return std::make_tuple(bindGroupLayouts, pipeline);
}
private:
wgpu::ShaderModule mVsModule;
};
// Test it is valid to set bind groups before setting the pipeline.
TEST_F(SetBindGroupPersistenceValidationTest, BindGroupBeforePipeline) {
std::vector<wgpu::BindGroupLayout> bindGroupLayouts;
wgpu::RenderPipeline pipeline;
std::tie(bindGroupLayouts, pipeline) = SetUpLayoutsAndPipeline({{
{{
wgpu::BindingType::UniformBuffer,
wgpu::BindingType::UniformBuffer,
}},
{{
wgpu::BindingType::StorageBuffer,
wgpu::BindingType::UniformBuffer,
}},
}});
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroup0 = utils::MakeBindGroup(
device, bindGroupLayouts[0],
{{0, uniformBuffer, 0, kBindingSize}, {1, uniformBuffer, 0, kBindingSize}});
wgpu::BindGroup bindGroup1 = utils::MakeBindGroup(
device, bindGroupLayouts[1],
{{0, storageBuffer, 0, kBindingSize}, {1, uniformBuffer, 0, kBindingSize}});
DummyRenderPass renderPass(device);
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder renderPassEncoder = commandEncoder.BeginRenderPass(&renderPass);
renderPassEncoder.SetBindGroup(0, bindGroup0);
renderPassEncoder.SetBindGroup(1, bindGroup1);
renderPassEncoder.SetPipeline(pipeline);
renderPassEncoder.Draw(3);
renderPassEncoder.EndPass();
commandEncoder.Finish();
}
// Dawn does not have a concept of bind group inheritance though the backing APIs may.
// Test that it is valid to draw with bind groups that are not "inherited". They persist
// after a pipeline change.
TEST_F(SetBindGroupPersistenceValidationTest, NotVulkanInheritance) {
std::vector<wgpu::BindGroupLayout> bindGroupLayoutsA;
wgpu::RenderPipeline pipelineA;
std::tie(bindGroupLayoutsA, pipelineA) = SetUpLayoutsAndPipeline({{
{{
wgpu::BindingType::UniformBuffer,
wgpu::BindingType::StorageBuffer,
}},
{{
wgpu::BindingType::UniformBuffer,
wgpu::BindingType::UniformBuffer,
}},
}});
std::vector<wgpu::BindGroupLayout> bindGroupLayoutsB;
wgpu::RenderPipeline pipelineB;
std::tie(bindGroupLayoutsB, pipelineB) = SetUpLayoutsAndPipeline({{
{{
wgpu::BindingType::StorageBuffer,
wgpu::BindingType::UniformBuffer,
}},
{{
wgpu::BindingType::UniformBuffer,
wgpu::BindingType::UniformBuffer,
}},
}});
wgpu::Buffer uniformBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
wgpu::Buffer storageBuffer = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
wgpu::BindGroup bindGroupA0 = utils::MakeBindGroup(
device, bindGroupLayoutsA[0],
{{0, uniformBuffer, 0, kBindingSize}, {1, storageBuffer, 0, kBindingSize}});
wgpu::BindGroup bindGroupA1 = utils::MakeBindGroup(
device, bindGroupLayoutsA[1],
{{0, uniformBuffer, 0, kBindingSize}, {1, uniformBuffer, 0, kBindingSize}});
wgpu::BindGroup bindGroupB0 = utils::MakeBindGroup(
device, bindGroupLayoutsB[0],
{{0, storageBuffer, 0, kBindingSize}, {1, uniformBuffer, 0, kBindingSize}});
DummyRenderPass renderPass(device);
wgpu::CommandEncoder commandEncoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder renderPassEncoder = commandEncoder.BeginRenderPass(&renderPass);
renderPassEncoder.SetPipeline(pipelineA);
renderPassEncoder.SetBindGroup(0, bindGroupA0);
renderPassEncoder.SetBindGroup(1, bindGroupA1);
renderPassEncoder.Draw(3);
renderPassEncoder.SetPipeline(pipelineB);
renderPassEncoder.SetBindGroup(0, bindGroupB0);
// This draw is valid.
// Bind group 1 persists even though it is not "inherited".
renderPassEncoder.Draw(3);
renderPassEncoder.EndPass();
commandEncoder.Finish();
}
class BindGroupLayoutCompatibilityTest : public ValidationTest {
public:
wgpu::Buffer CreateBuffer(uint64_t bufferSize, wgpu::BufferUsage usage) {
wgpu::BufferDescriptor bufferDescriptor;
bufferDescriptor.size = bufferSize;
bufferDescriptor.usage = usage;
return device.CreateBuffer(&bufferDescriptor);
}
wgpu::RenderPipeline CreateFSRenderPipeline(
const char* fsShader,
std::vector<wgpu::BindGroupLayout> bindGroupLayout) {
wgpu::ShaderModule vsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Vertex, R"(
#version 450
void main() {
})");
wgpu::ShaderModule fsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Fragment, fsShader);
wgpu::PipelineLayoutDescriptor descriptor;
descriptor.bindGroupLayoutCount = bindGroupLayout.size();
descriptor.bindGroupLayouts = bindGroupLayout.data();
utils::ComboRenderPipelineDescriptor pipelineDescriptor(device);
pipelineDescriptor.vertexStage.module = vsModule;
pipelineDescriptor.cFragmentStage.module = fsModule;
wgpu::PipelineLayout pipelineLayout = device.CreatePipelineLayout(&descriptor);
pipelineDescriptor.layout = pipelineLayout;
return device.CreateRenderPipeline(&pipelineDescriptor);
}
wgpu::RenderPipeline CreateRenderPipeline(std::vector<wgpu::BindGroupLayout> bindGroupLayout) {
return CreateFSRenderPipeline(R"(
#version 450
layout(std140, set = 0, binding = 0) buffer SBuffer {
vec2 value2;
} sBuffer;
layout(std140, set = 1, binding = 0) readonly buffer RBuffer {
vec2 value3;
} rBuffer;
layout(location = 0) out vec4 fragColor;
void main() {
})",
std::move(bindGroupLayout));
}
wgpu::ComputePipeline CreateComputePipeline(
const char* shader,
std::vector<wgpu::BindGroupLayout> bindGroupLayout) {
wgpu::ShaderModule csModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Compute, shader);
wgpu::PipelineLayoutDescriptor descriptor;
descriptor.bindGroupLayoutCount = bindGroupLayout.size();
descriptor.bindGroupLayouts = bindGroupLayout.data();
wgpu::PipelineLayout pipelineLayout = device.CreatePipelineLayout(&descriptor);
wgpu::ComputePipelineDescriptor csDesc;
csDesc.layout = pipelineLayout;
csDesc.computeStage.module = csModule;
csDesc.computeStage.entryPoint = "main";
return device.CreateComputePipeline(&csDesc);
}
wgpu::ComputePipeline CreateComputePipeline(
std::vector<wgpu::BindGroupLayout> bindGroupLayout) {
return CreateComputePipeline(R"(
#version 450
const uint kTileSize = 4;
const uint kInstances = 11;
layout(local_size_x = kTileSize, local_size_y = kTileSize, local_size_z = 1) in;
layout(std140, set = 0, binding = 0) buffer SBuffer {
float value2;
} dst;
layout(std140, set = 1, binding = 0) readonly buffer RBuffer {
readonly float value3;
} rdst;
void main() {
})",
std::move(bindGroupLayout));
}
};
// Test that it is valid to pass a writable storage buffer in the pipeline layout when the shader
// uses the binding as a readonly storage buffer.
TEST_F(BindGroupLayoutCompatibilityTest, RWStorageInBGLWithROStorageInShader) {
// Set up the bind group layout.
wgpu::BindGroupLayout bgl0 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer}});
wgpu::BindGroupLayout bgl1 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer}});
CreateRenderPipeline({bgl0, bgl1});
CreateComputePipeline({bgl0, bgl1});
}
// Test that it is invalid to pass a readonly storage buffer in the pipeline layout when the shader
// uses the binding as a writable storage buffer.
TEST_F(BindGroupLayoutCompatibilityTest, ROStorageInBGLWithRWStorageInShader) {
// Set up the bind group layout.
wgpu::BindGroupLayout bgl0 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::ReadonlyStorageBuffer}});
wgpu::BindGroupLayout bgl1 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::ReadonlyStorageBuffer}});
ASSERT_DEVICE_ERROR(CreateRenderPipeline({bgl0, bgl1}));
ASSERT_DEVICE_ERROR(CreateComputePipeline({bgl0, bgl1}));
}
TEST_F(BindGroupLayoutCompatibilityTest, TextureViewDimension) {
constexpr char kTexture2DShader[] = R"(
#version 450
layout(set = 0, binding = 0) uniform texture2D texture;
void main() {
})";
// Render: Test that 2D texture with 2D view dimension works
CreateFSRenderPipeline(
kTexture2DShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D}})});
// Render: Test that 2D texture with 2D array view dimension is invalid
ASSERT_DEVICE_ERROR(CreateFSRenderPipeline(
kTexture2DShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2DArray}})}));
// Compute: Test that 2D texture with 2D view dimension works
CreateComputePipeline(
kTexture2DShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D}})});
// Compute: Test that 2D texture with 2D array view dimension is invalid
ASSERT_DEVICE_ERROR(CreateComputePipeline(
kTexture2DShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2DArray}})}));
constexpr char kTexture2DArrayShader[] = R"(
#version 450
layout(set = 0, binding = 0) uniform texture2DArray texture;
void main() {
})";
// Render: Test that 2D texture array with 2D array view dimension works
CreateFSRenderPipeline(
kTexture2DArrayShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2DArray}})});
// Render: Test that 2D texture array with 2D view dimension is invalid
ASSERT_DEVICE_ERROR(CreateFSRenderPipeline(
kTexture2DArrayShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D}})}));
// Compute: Test that 2D texture array with 2D array view dimension works
CreateComputePipeline(
kTexture2DArrayShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2DArray}})});
// Compute: Test that 2D texture array with 2D view dimension is invalid
ASSERT_DEVICE_ERROR(CreateComputePipeline(
kTexture2DArrayShader,
{utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute, wgpu::BindingType::SampledTexture, false, 0,
wgpu::TextureViewDimension::e2D}})}));
}
class BindingsValidationTest : public BindGroupLayoutCompatibilityTest {
public:
void TestRenderPassBindings(const wgpu::BindGroup* bg,
uint32_t count,
wgpu::RenderPipeline pipeline,
bool expectation) {
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
DummyRenderPass dummyRenderPass(device);
wgpu::RenderPassEncoder rp = encoder.BeginRenderPass(&dummyRenderPass);
for (uint32_t i = 0; i < count; ++i) {
rp.SetBindGroup(i, bg[i]);
}
rp.SetPipeline(pipeline);
rp.Draw(3);
rp.EndPass();
if (!expectation) {
ASSERT_DEVICE_ERROR(encoder.Finish());
} else {
encoder.Finish();
}
}
void TestComputePassBindings(const wgpu::BindGroup* bg,
uint32_t count,
wgpu::ComputePipeline pipeline,
bool expectation) {
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::ComputePassEncoder cp = encoder.BeginComputePass();
for (uint32_t i = 0; i < count; ++i) {
cp.SetBindGroup(i, bg[i]);
}
cp.SetPipeline(pipeline);
cp.Dispatch(1);
cp.EndPass();
if (!expectation) {
ASSERT_DEVICE_ERROR(encoder.Finish());
} else {
encoder.Finish();
}
}
static constexpr uint32_t kBindingNum = 3;
};
// Test that it is valid to set a pipeline layout with bindings unused by the pipeline.
TEST_F(BindingsValidationTest, PipelineLayoutWithMoreBindingsThanPipeline) {
// Set up bind group layouts.
wgpu::BindGroupLayout bgl0 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer},
{1, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::UniformBuffer}});
wgpu::BindGroupLayout bgl1 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::ReadonlyStorageBuffer}});
wgpu::BindGroupLayout bgl2 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer}});
// pipelineLayout has unused binding set (bgl2) and unused entry in a binding set (bgl0).
CreateRenderPipeline({bgl0, bgl1, bgl2});
CreateComputePipeline({bgl0, bgl1, bgl2});
}
// Test that it is invalid to set a pipeline layout that doesn't have all necessary bindings
// required by the pipeline.
TEST_F(BindingsValidationTest, PipelineLayoutWithLessBindingsThanPipeline) {
// Set up bind group layout.
wgpu::BindGroupLayout bgl0 = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer}});
// missing a binding set (bgl1) in pipeline layout
{
ASSERT_DEVICE_ERROR(CreateRenderPipeline({bgl0}));
ASSERT_DEVICE_ERROR(CreateComputePipeline({bgl0}));
}
// bgl1 is not missing, but it is empty
{
wgpu::BindGroupLayout bgl1 = utils::MakeBindGroupLayout(device, {});
ASSERT_DEVICE_ERROR(CreateRenderPipeline({bgl0, bgl1}));
ASSERT_DEVICE_ERROR(CreateComputePipeline({bgl0, bgl1}));
}
// bgl1 is neither missing nor empty, but it doesn't contain the necessary binding
{
wgpu::BindGroupLayout bgl1 = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::UniformBuffer}});
ASSERT_DEVICE_ERROR(CreateRenderPipeline({bgl0, bgl1}));
ASSERT_DEVICE_ERROR(CreateComputePipeline({bgl0, bgl1}));
}
}
// Test that it is valid to set bind groups whose layout is not set in the pipeline layout.
// But it's invalid to set extra entry for a given bind group's layout if that layout is set in
// the pipeline layout.
TEST_F(BindingsValidationTest, BindGroupsWithMoreBindingsThanPipelineLayout) {
// Set up bind group layouts, buffers, bind groups, pipeline layouts and pipelines.
std::array<wgpu::BindGroupLayout, kBindingNum + 1> bgl;
std::array<wgpu::BindGroup, kBindingNum + 1> bg;
std::array<wgpu::Buffer, kBindingNum + 1> buffer;
for (uint32_t i = 0; i < kBindingNum + 1; ++i) {
bgl[i] = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer}});
buffer[i] = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
bg[i] = utils::MakeBindGroup(device, bgl[i], {{0, buffer[i]}});
}
// Set 3 bindings (and 3 pipeline layouts) in pipeline.
wgpu::RenderPipeline renderPipeline = CreateRenderPipeline({bgl[0], bgl[1], bgl[2]});
wgpu::ComputePipeline computePipeline = CreateComputePipeline({bgl[0], bgl[1], bgl[2]});
// Comprared to pipeline layout, there is an extra bind group (bg[3])
TestRenderPassBindings(bg.data(), kBindingNum + 1, renderPipeline, true);
TestComputePassBindings(bg.data(), kBindingNum + 1, computePipeline, true);
// If a bind group has entry (like bgl1_1 below) unused by the pipeline layout, it is invalid.
// Bind groups associated layout should exactly match bind group layout if that layout is
// set in pipeline layout.
bgl[1] = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::ReadonlyStorageBuffer},
{1, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::UniformBuffer}});
buffer[1] = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage | wgpu::BufferUsage::Uniform);
bg[1] = utils::MakeBindGroup(device, bgl[1], {{0, buffer[1]}, {1, buffer[1]}});
TestRenderPassBindings(bg.data(), kBindingNum, renderPipeline, false);
TestComputePassBindings(bg.data(), kBindingNum, computePipeline, false);
}
// Test that it is invalid to set bind groups that don't have all necessary bindings required
// by the pipeline layout. Note that both pipeline layout and bind group have enough bindings for
// pipeline in the following test.
TEST_F(BindingsValidationTest, BindGroupsWithLessBindingsThanPipelineLayout) {
// Set up bind group layouts, buffers, bind groups, pipeline layouts and pipelines.
std::array<wgpu::BindGroupLayout, kBindingNum> bgl;
std::array<wgpu::BindGroup, kBindingNum> bg;
std::array<wgpu::Buffer, kBindingNum> buffer;
for (uint32_t i = 0; i < kBindingNum; ++i) {
bgl[i] = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::StorageBuffer}});
buffer[i] = CreateBuffer(kBufferSize, wgpu::BufferUsage::Storage);
bg[i] = utils::MakeBindGroup(device, bgl[i], {{0, buffer[i]}});
}
wgpu::RenderPipeline renderPipeline = CreateRenderPipeline({bgl[0], bgl[1], bgl[2]});
wgpu::ComputePipeline computePipeline = CreateComputePipeline({bgl[0], bgl[1], bgl[2]});
// Compared to pipeline layout, a binding set (bgl2) related bind group is missing
TestRenderPassBindings(bg.data(), kBindingNum - 1, renderPipeline, false);
TestComputePassBindings(bg.data(), kBindingNum - 1, computePipeline, false);
// bgl[2] related bind group is not missing, but its bind group is empty
bgl[2] = utils::MakeBindGroupLayout(device, {});
bg[2] = utils::MakeBindGroup(device, bgl[2], {});
TestRenderPassBindings(bg.data(), kBindingNum, renderPipeline, false);
TestComputePassBindings(bg.data(), kBindingNum, computePipeline, false);
// bgl[2] related bind group is neither missing nor empty, but it doesn't contain the necessary
// binding
bgl[2] = utils::MakeBindGroupLayout(
device, {{1, wgpu::ShaderStage::Compute | wgpu::ShaderStage::Fragment,
wgpu::BindingType::UniformBuffer}});
buffer[2] = CreateBuffer(kBufferSize, wgpu::BufferUsage::Uniform);
bg[2] = utils::MakeBindGroup(device, bgl[2], {{1, buffer[2]}});
TestRenderPassBindings(bg.data(), kBindingNum, renderPipeline, false);
TestComputePassBindings(bg.data(), kBindingNum, computePipeline, false);
}
class ComparisonSamplerBindingTest : public ValidationTest {
protected:
wgpu::RenderPipeline CreateFragmentPipeline(wgpu::BindGroupLayout* bindGroupLayout,
const char* fragmentSource) {
wgpu::ShaderModule vsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Vertex, R"(
#version 450
void main() {
})");
wgpu::ShaderModule fsModule =
utils::CreateShaderModule(device, utils::SingleShaderStage::Fragment, fragmentSource);
utils::ComboRenderPipelineDescriptor pipelineDescriptor(device);
pipelineDescriptor.vertexStage.module = vsModule;
pipelineDescriptor.cFragmentStage.module = fsModule;
wgpu::PipelineLayout pipelineLayout =
utils::MakeBasicPipelineLayout(device, bindGroupLayout);
pipelineDescriptor.layout = pipelineLayout;
return device.CreateRenderPipeline(&pipelineDescriptor);
}
};
// TODO(crbug.com/dawn/367): Disabled until we can perform shader analysis
// of which samplers are comparison samplers.
TEST_F(ComparisonSamplerBindingTest, DISABLED_ShaderAndBGLMatches) {
// Test that sampler binding works with normal sampler in the shader.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
CreateFragmentPipeline(&bindGroupLayout, R"(
#version 450
layout(set = 0, binding = 0) uniform sampler samp;
void main() {
})");
}
// Test that comparison sampler binding works with shadow sampler in the shader.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ComparisonSampler}});
CreateFragmentPipeline(&bindGroupLayout, R"(
#version 450
layout(set = 0, binding = 0) uniform samplerShadow samp;
void main() {
})");
}
// Test that sampler binding does not work with comparison sampler in the shader.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
ASSERT_DEVICE_ERROR(CreateFragmentPipeline(&bindGroupLayout, R"(
#version 450
layout(set = 0, binding = 0) uniform samplerShadow samp;
void main() {
})"));
}
// Test that comparison sampler binding does not work with normal sampler in the shader.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ComparisonSampler}});
ASSERT_DEVICE_ERROR(CreateFragmentPipeline(&bindGroupLayout, R"(
#version 450
layout(set = 0, binding = 0) uniform sampler samp;
void main() {
})"));
}
}
TEST_F(ComparisonSamplerBindingTest, SamplerAndBindGroupMatches) {
// Test that sampler binding works with normal sampler.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
wgpu::SamplerDescriptor desc = {};
utils::MakeBindGroup(device, bindGroupLayout, {{0, device.CreateSampler(&desc)}});
}
// Test that comparison sampler binding works with sampler w/ compare function.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ComparisonSampler}});
wgpu::SamplerDescriptor desc = {};
desc.compare = wgpu::CompareFunction::Never;
utils::MakeBindGroup(device, bindGroupLayout, {{0, device.CreateSampler(&desc)}});
}
// Test that sampler binding does not work with sampler w/ compare function.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::Sampler}});
wgpu::SamplerDescriptor desc;
desc.compare = wgpu::CompareFunction::Never;
ASSERT_DEVICE_ERROR(
utils::MakeBindGroup(device, bindGroupLayout, {{0, device.CreateSampler(&desc)}}));
}
// Test that comparison sampler binding does not work with normal sampler.
{
wgpu::BindGroupLayout bindGroupLayout = utils::MakeBindGroupLayout(
device, {{0, wgpu::ShaderStage::Fragment, wgpu::BindingType::ComparisonSampler}});
wgpu::SamplerDescriptor desc = {};
ASSERT_DEVICE_ERROR(
utils::MakeBindGroup(device, bindGroupLayout, {{0, device.CreateSampler(&desc)}}));
}
}
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