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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 "common/Math.h"
#include "utils/ComboRenderPipelineDescriptor.h"
#include "utils/TextureUtils.h"
#include "utils/WGPUHelpers.h"
namespace {
constexpr wgpu::TextureFormat kNonRenderableColorFormats[] = {
wgpu::TextureFormat::RG11B10Ufloat, wgpu::TextureFormat::RGB9E5Ufloat,
wgpu::TextureFormat::R8Snorm, wgpu::TextureFormat::RG8Snorm,
wgpu::TextureFormat::RGBA8Snorm,
};
wgpu::TextureDimension kDimensions[] = {
wgpu::TextureDimension::e1D,
wgpu::TextureDimension::e3D,
};
class TextureValidationTest : public ValidationTest {
protected:
void SetUp() override {
ValidationTest::SetUp();
queue = device.GetQueue();
}
wgpu::TextureDescriptor CreateDefaultTextureDescriptor() {
wgpu::TextureDescriptor descriptor;
descriptor.size.width = kWidth;
descriptor.size.height = kHeight;
descriptor.size.depthOrArrayLayers = kDefaultDepth;
descriptor.mipLevelCount = kDefaultMipLevels;
descriptor.sampleCount = kDefaultSampleCount;
descriptor.dimension = wgpu::TextureDimension::e2D;
descriptor.format = kDefaultTextureFormat;
descriptor.usage =
wgpu::TextureUsage::RenderAttachment | wgpu::TextureUsage::TextureBinding;
return descriptor;
}
wgpu::Queue queue;
private:
// Choose the LCM of all current compressed texture format texel dimensions as the
// dimensions of the default texture.
static constexpr uint32_t kWidth = 120;
static constexpr uint32_t kHeight = 120;
static constexpr uint32_t kDefaultDepth = 1;
static constexpr uint32_t kDefaultMipLevels = 1;
static constexpr uint32_t kDefaultSampleCount = 1;
static constexpr wgpu::TextureFormat kDefaultTextureFormat =
wgpu::TextureFormat::RGBA8Unorm;
};
// Test the validation of sample count
TEST_F(TextureValidationTest, SampleCount) {
wgpu::TextureDescriptor defaultDescriptor = CreateDefaultTextureDescriptor();
// sampleCount == 1 is allowed.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 1;
device.CreateTexture(&descriptor);
}
// sampleCount == 4 is allowed.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 4;
device.CreateTexture(&descriptor);
}
// It is an error to create a texture with an invalid sampleCount.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 3;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// It is an error to create a multisampled texture with mipLevelCount > 1.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 4;
descriptor.mipLevelCount = 2;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// It is an error to create a multisampled 1D or 3D texture.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 4;
descriptor.size.height = 1;
descriptor.dimension = wgpu::TextureDimension::e1D;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.dimension = wgpu::TextureDimension::e3D;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// It is an error to create a multisample texture when the format cannot support
// multisample.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 4;
for (wgpu::TextureFormat format : kNonRenderableColorFormats) {
// If a format can support multisample, it must be renderable.
descriptor.format = format;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Currently we do not support multisampled 2D textures with depth>1.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 4;
descriptor.size.depthOrArrayLayers = 2;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// It is an error to set TextureUsage::StorageBinding when sampleCount > 1.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.sampleCount = 4;
descriptor.usage |= wgpu::TextureUsage::StorageBinding;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test the validation of the mip level count
TEST_F(TextureValidationTest, MipLevelCount) {
wgpu::TextureDescriptor defaultDescriptor = CreateDefaultTextureDescriptor();
// mipLevelCount == 1 is allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
descriptor.mipLevelCount = 1;
device.CreateTexture(&descriptor);
}
// mipLevelCount == 0 is an error
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
descriptor.mipLevelCount = 0;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Full mip chains are allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
// Mip level sizes: 32, 16, 8, 4, 2, 1
descriptor.mipLevelCount = 6;
device.CreateTexture(&descriptor);
}
// Test non-power-of-two width
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
// Mip level width: 31, 15, 7, 3, 1
descriptor.size.width = 31;
descriptor.size.height = 4;
// Full mip chains on non-power-of-two width are allowed
descriptor.mipLevelCount = 5;
device.CreateTexture(&descriptor);
// Too big mip chains on non-power-of-two width are disallowed
descriptor.mipLevelCount = 6;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Test non-power-of-two height
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 4;
// Mip level height: 31, 15, 7, 3, 1
descriptor.size.height = 31;
// Full mip chains on non-power-of-two height are allowed
descriptor.mipLevelCount = 5;
device.CreateTexture(&descriptor);
// Too big mip chains on non-power-of-two height are disallowed
descriptor.mipLevelCount = 6;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Undefined shift check if miplevel is bigger than the integer bit width.
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
descriptor.mipLevelCount = 100;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Non square mip map halves the resolution until a 1x1 dimension
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 8;
// Mip maps: 32 * 8, 16 * 4, 8 * 2, 4 * 1, 2 * 1, 1 * 1
descriptor.mipLevelCount = 6;
device.CreateTexture(&descriptor);
}
// Non square mip map for a 3D textures
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 8;
descriptor.size.depthOrArrayLayers = 64;
descriptor.dimension = wgpu::TextureDimension::e3D;
// Non square mip map halves width, height and depth until a 1x1x1 dimension for a 3D
// texture. So there are 7 mipmaps at most: 32 * 8 * 64, 16 * 4 * 32, 8 * 2 * 16,
// 4 * 1 * 8, 2 * 1 * 4, 1 * 1 * 2, 1 * 1 * 1.
descriptor.mipLevelCount = 7;
device.CreateTexture(&descriptor);
}
// Non square mip map for 2D textures with depth > 1
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 8;
descriptor.size.depthOrArrayLayers = 64;
// Non square mip map halves width and height until a 1x1 dimension for a 2D texture,
// even its depth > 1. So there are 6 mipmaps at most: 32 * 8, 16 * 4, 8 * 2, 4 * 1, 2 *
// 1, 1 * 1.
descriptor.dimension = wgpu::TextureDimension::e2D;
descriptor.mipLevelCount = 7;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.mipLevelCount = 6;
device.CreateTexture(&descriptor);
}
// Mip level equal to the maximum for a 2D texture is allowed
{
uint32_t maxTextureDimension2D = GetSupportedLimits().limits.maxTextureDimension2D;
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = maxTextureDimension2D;
descriptor.size.height = maxTextureDimension2D;
descriptor.mipLevelCount = Log2(maxTextureDimension2D) + 1u;
device.CreateTexture(&descriptor);
}
// Mip level exceeding the maximum for a 2D texture not allowed
{
uint32_t maxTextureDimension2D = GetSupportedLimits().limits.maxTextureDimension2D;
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = maxTextureDimension2D;
descriptor.size.height = maxTextureDimension2D;
descriptor.mipLevelCount = Log2(maxTextureDimension2D) + 2u;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test the validation of array layer count
TEST_F(TextureValidationTest, ArrayLayerCount) {
wgpu::TextureDescriptor defaultDescriptor = CreateDefaultTextureDescriptor();
wgpu::Limits supportedLimits = GetSupportedLimits().limits;
// Array layer count exceeding maxTextureArrayLayers is not allowed for 2D texture
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.depthOrArrayLayers = supportedLimits.maxTextureArrayLayers + 1u;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Array layer count less than maxTextureArrayLayers is allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.depthOrArrayLayers = supportedLimits.maxTextureArrayLayers >> 1;
device.CreateTexture(&descriptor);
}
// Array layer count equal to maxTextureArrayLayers is allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.depthOrArrayLayers = supportedLimits.maxTextureArrayLayers;
device.CreateTexture(&descriptor);
}
}
// Test the validation of 2D texture size
TEST_F(TextureValidationTest, 2DTextureSize) {
wgpu::TextureDescriptor defaultDescriptor = CreateDefaultTextureDescriptor();
wgpu::Limits supportedLimits = GetSupportedLimits().limits;
// Out-of-bound texture dimension is not allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = supportedLimits.maxTextureDimension2D + 1u;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.size.width = 1;
descriptor.size.height = supportedLimits.maxTextureDimension2D + 1u;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Zero-sized texture is not allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size = {0, 1, 1};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.size = {1, 0, 1};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.size = {1, 1, 0};
// 2D texture with depth=0 is not allowed
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Texture size less than max dimension is allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = supportedLimits.maxTextureDimension2D >> 1;
descriptor.size.height = supportedLimits.maxTextureDimension2D >> 1;
device.CreateTexture(&descriptor);
}
// Texture size equal to max dimension is allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = supportedLimits.maxTextureDimension2D;
descriptor.size.height = supportedLimits.maxTextureDimension2D;
descriptor.dimension = wgpu::TextureDimension::e2D;
device.CreateTexture(&descriptor);
}
}
// Test the validation of 3D texture size
TEST_F(TextureValidationTest, 3DTextureSize) {
wgpu::TextureDescriptor defaultDescriptor = CreateDefaultTextureDescriptor();
wgpu::Limits supportedLimits = GetSupportedLimits().limits;
// Out-of-bound texture dimension is not allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.dimension = wgpu::TextureDimension::e3D;
descriptor.size = {supportedLimits.maxTextureDimension3D + 1u, 1, 1};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.size = {1, supportedLimits.maxTextureDimension3D + 1u, 1};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.size = {1, 1, supportedLimits.maxTextureDimension3D + 1u};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Zero-sized texture is not allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.dimension = wgpu::TextureDimension::e3D;
descriptor.size = {0, 1, 1};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.size = {1, 0, 1};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
descriptor.size = {1, 1, 0};
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Texture size less than max dimension is allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.dimension = wgpu::TextureDimension::e3D;
descriptor.size = {supportedLimits.maxTextureDimension3D >> 1,
supportedLimits.maxTextureDimension3D >> 1,
supportedLimits.maxTextureDimension3D >> 1};
device.CreateTexture(&descriptor);
}
// Texture size equal to max dimension is allowed
{
wgpu::TextureDescriptor descriptor = defaultDescriptor;
descriptor.dimension = wgpu::TextureDimension::e3D;
descriptor.size = {supportedLimits.maxTextureDimension3D,
supportedLimits.maxTextureDimension3D,
supportedLimits.maxTextureDimension3D};
device.CreateTexture(&descriptor);
}
}
// Test that depth/stencil formats are invalid for 3D texture
TEST_F(TextureValidationTest, DepthStencilFormatsFor3D) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
wgpu::TextureFormat depthStencilFormats[] = {
wgpu::TextureFormat::Stencil8, wgpu::TextureFormat::Depth16Unorm,
wgpu::TextureFormat::Depth24Plus, wgpu::TextureFormat::Depth24PlusStencil8,
wgpu::TextureFormat::Depth32Float,
};
for (wgpu::TextureDimension dimension : kDimensions) {
for (wgpu::TextureFormat format : depthStencilFormats) {
descriptor.format = format;
descriptor.dimension = dimension;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
}
// Test that it is valid to destroy a texture
TEST_F(TextureValidationTest, DestroyTexture) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
wgpu::Texture texture = device.CreateTexture(&descriptor);
texture.Destroy();
}
// Test that it's valid to destroy a destroyed texture
TEST_F(TextureValidationTest, DestroyDestroyedTexture) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
wgpu::Texture texture = device.CreateTexture(&descriptor);
texture.Destroy();
texture.Destroy();
}
// Test that it's invalid to submit a destroyed texture in a queue
// in the case of destroy, encode, submit
TEST_F(TextureValidationTest, DestroyEncodeSubmit) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
wgpu::Texture texture = device.CreateTexture(&descriptor);
wgpu::TextureView textureView = texture.CreateView();
utils::ComboRenderPassDescriptor renderPass({textureView});
// Destroy the texture
texture.Destroy();
wgpu::CommandEncoder encoder_post_destroy = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder_post_destroy.BeginRenderPass(&renderPass);
pass.EndPass();
}
wgpu::CommandBuffer commands = encoder_post_destroy.Finish();
// Submit should fail due to destroyed texture
ASSERT_DEVICE_ERROR(queue.Submit(1, &commands));
}
// Test that it's invalid to submit a destroyed texture in a queue
// in the case of encode, destroy, submit
TEST_F(TextureValidationTest, EncodeDestroySubmit) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
wgpu::Texture texture = device.CreateTexture(&descriptor);
wgpu::TextureView textureView = texture.CreateView();
utils::ComboRenderPassDescriptor renderPass({textureView});
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPass);
pass.EndPass();
}
wgpu::CommandBuffer commands = encoder.Finish();
// Destroy the texture
texture.Destroy();
// Submit should fail due to destroyed texture
ASSERT_DEVICE_ERROR(queue.Submit(1, &commands));
}
// Test it is an error to create an RenderAttachment texture with a non-renderable format.
TEST_F(TextureValidationTest, NonRenderableAndRenderAttachment) {
wgpu::TextureDescriptor descriptor;
descriptor.size = {1, 1, 1};
descriptor.usage = wgpu::TextureUsage::RenderAttachment;
// Succeeds because RGBA8Unorm is renderable
descriptor.format = wgpu::TextureFormat::RGBA8Unorm;
device.CreateTexture(&descriptor);
for (wgpu::TextureFormat format : kNonRenderableColorFormats) {
// Fails because `format` is non-renderable
descriptor.format = format;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test it is an error to create a Storage texture with any format that doesn't support
// TextureUsage::StorageBinding texture usages.
TEST_F(TextureValidationTest, TextureFormatNotSupportTextureUsageStorage) {
wgpu::TextureDescriptor descriptor;
descriptor.size = {1, 1, 1};
descriptor.usage = wgpu::TextureUsage::StorageBinding;
for (wgpu::TextureFormat format : utils::kAllTextureFormats) {
descriptor.format = format;
if (utils::TextureFormatSupportsStorageTexture(format)) {
device.CreateTexture(&descriptor);
} else {
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
}
// Test it is an error to create a texture with format "Undefined".
TEST_F(TextureValidationTest, TextureFormatUndefined) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = wgpu::TextureFormat::Undefined;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Test that the creation of a texture with depth24unorm-stencil8 will fail when the feature
// Depth24UnormStencil8 is not enabled.
TEST_F(TextureValidationTest, UseD24S8FormatWithoutEnablingFeature) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = wgpu::TextureFormat::Depth24UnormStencil8;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Test that the creation of a texture with depth32float-stencil8 will fail when the feature
// Depth32FloatStencil8 is not enabled.
TEST_F(TextureValidationTest, UseD32S8FormatWithoutEnablingFeature) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = wgpu::TextureFormat::Depth32FloatStencil8;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Test that the creation of a texture with BC format will fail when the feature
// textureCompressionBC is not enabled.
TEST_F(TextureValidationTest, UseBCFormatWithoutEnablingFeature) {
for (wgpu::TextureFormat format : utils::kBCFormats) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test that the creation of a texture with ETC2 format will fail when the feature
// textureCompressionETC2 is not enabled.
TEST_F(TextureValidationTest, UseETC2FormatWithoutEnablingFeature) {
for (wgpu::TextureFormat format : utils::kETC2Formats) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test that the creation of a texture with ASTC format will fail when the feature
// textureCompressionASTC is not enabled.
TEST_F(TextureValidationTest, UseASTCFormatWithoutEnablingFeature) {
for (wgpu::TextureFormat format : utils::kASTCFormats) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
class D24S8TextureFormatsValidationTests : public TextureValidationTest {
protected:
WGPUDevice CreateTestDevice() override {
wgpu::DeviceDescriptor descriptor;
wgpu::FeatureName requiredFeatures[1] = {wgpu::FeatureName::Depth24UnormStencil8};
descriptor.requiredFeatures = requiredFeatures;
descriptor.requiredFeaturesCount = 1;
return adapter.CreateDevice(&descriptor);
}
};
// Test that depth24unorm-stencil8 format is invalid for 3D texture
TEST_F(D24S8TextureFormatsValidationTests, DepthStencilFormatsFor3D) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
for (wgpu::TextureDimension dimension : kDimensions) {
descriptor.format = wgpu::TextureFormat::Depth24UnormStencil8;
descriptor.dimension = dimension;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
class D32S8TextureFormatsValidationTests : public TextureValidationTest {
protected:
WGPUDevice CreateTestDevice() override {
wgpu::DeviceDescriptor descriptor;
wgpu::FeatureName requiredFeatures[1] = {wgpu::FeatureName::Depth32FloatStencil8};
descriptor.requiredFeatures = requiredFeatures;
descriptor.requiredFeaturesCount = 1;
return adapter.CreateDevice(&descriptor);
}
};
// Test that depth32float-stencil8 format is invalid for 3D texture
TEST_F(D32S8TextureFormatsValidationTests, DepthStencilFormatsFor3D) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
for (wgpu::TextureDimension dimension : kDimensions) {
descriptor.format = wgpu::TextureFormat::Depth32FloatStencil8;
descriptor.dimension = dimension;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// TODO(jiawei.shao@intel.com): add tests to verify we cannot create 1D or 3D textures with
// compressed texture formats.
class CompressedTextureFormatsValidationTests : public TextureValidationTest {
protected:
WGPUDevice CreateTestDevice() override {
wgpu::DeviceDescriptor descriptor;
wgpu::FeatureName requiredFeatures[3] = {wgpu::FeatureName::TextureCompressionBC,
wgpu::FeatureName::TextureCompressionETC2,
wgpu::FeatureName::TextureCompressionASTC};
descriptor.requiredFeatures = requiredFeatures;
descriptor.requiredFeaturesCount = 3;
return adapter.CreateDevice(&descriptor);
}
wgpu::TextureDescriptor CreateDefaultTextureDescriptor() {
wgpu::TextureDescriptor descriptor =
TextureValidationTest::CreateDefaultTextureDescriptor();
descriptor.usage = wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::CopyDst |
wgpu::TextureUsage::TextureBinding;
descriptor.size.width = kWidth;
descriptor.size.height = kHeight;
return descriptor;
}
private:
// Choose the LCM of all current compressed texture format texel dimensions as the
// dimensions of the default texture.
static constexpr uint32_t kWidth = 120;
static constexpr uint32_t kHeight = 120;
};
// Test that only CopySrc, CopyDst and Sampled are accepted as usage in compressed formats.
TEST_F(CompressedTextureFormatsValidationTests, TextureUsage) {
wgpu::TextureUsage invalidUsages[] = {
wgpu::TextureUsage::RenderAttachment,
wgpu::TextureUsage::StorageBinding,
wgpu::TextureUsage::Present,
};
for (wgpu::TextureFormat format : utils::kCompressedFormats) {
for (wgpu::TextureUsage usage : invalidUsages) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.usage = usage;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
}
// Test that using various MipLevelCount is allowed for compressed formats.
TEST_F(CompressedTextureFormatsValidationTests, MipLevelCount) {
for (wgpu::TextureFormat format : utils::kCompressedFormats) {
for (uint32_t mipLevels : {1, 3, 6}) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.mipLevelCount = mipLevels;
device.CreateTexture(&descriptor);
}
}
}
// Test that it is invalid to specify SampleCount>1 in compressed formats.
TEST_F(CompressedTextureFormatsValidationTests, SampleCount) {
for (wgpu::TextureFormat format : utils::kCompressedFormats) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.sampleCount = 4;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test that it is allowed to create a 2D texture with depth>1 in compressed formats.
TEST_F(CompressedTextureFormatsValidationTests, 2DArrayTexture) {
for (wgpu::TextureFormat format : utils::kCompressedFormats) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.size.depthOrArrayLayers = 6;
device.CreateTexture(&descriptor);
}
}
// Test that it is not allowed to create a 3D texture in compressed formats.
TEST_F(CompressedTextureFormatsValidationTests, 3DTexture) {
for (wgpu::TextureFormat format : utils::kCompressedFormats) {
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.size.depthOrArrayLayers = 4;
descriptor.dimension = wgpu::TextureDimension::e3D;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test that it is invalid to use numbers for a texture's width/height that are not multiples
// of the compressed block sizes.
TEST_F(CompressedTextureFormatsValidationTests, TextureSize) {
for (wgpu::TextureFormat format : utils::kCompressedFormats) {
uint32_t blockWidth = utils::GetTextureFormatBlockWidth(format);
uint32_t blockHeight = utils::GetTextureFormatBlockHeight(format);
// Test that the default size (120 x 120) is valid for all formats.
{
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
ASSERT_TRUE(descriptor.size.width % blockWidth == 0 &&
descriptor.size.height % blockHeight == 0);
device.CreateTexture(&descriptor);
}
// Test that invalid width should cause an error. Note that if the block width of the
// compression type is even, we test that alignment to half the width is not sufficient.
{
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.size.width =
blockWidth % 2 == 0 ? blockWidth - (blockWidth / 2) : blockWidth - 1;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Test that invalid width should cause an error. Note that if the block height of the
// compression type is even, we test that alignment to half the height is not
// sufficient.
{
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.size.height =
blockHeight % 2 == 0 ? blockHeight - (blockHeight / 2) : blockHeight - 1;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Test a working dimension based on some constant multipliers to the dimensions.
{
constexpr uint32_t kWidthMultiplier = 3;
constexpr uint32_t kHeightMultiplier = 8;
wgpu::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();
descriptor.format = format;
descriptor.size.width = kWidthMultiplier * blockWidth;
descriptor.size.height = kHeightMultiplier * blockHeight;
device.CreateTexture(&descriptor);
}
}
}
} // namespace