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// Copyright 2019 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.
#ifndef SRC_DAWN_NATIVE_TOGGLES_H_
#define SRC_DAWN_NATIVE_TOGGLES_H_
#include <bitset>
#include <string>
#include <unordered_map>
#include <vector>
#include "dawn/common/BitSetIterator.h"
#include "dawn/native/DawnNative.h"
namespace dawn::native {
struct DawnTogglesDescriptor;
enum class Toggle {
EmulateStoreAndMSAAResolve,
NonzeroClearResourcesOnCreationForTesting,
AlwaysResolveIntoZeroLevelAndLayer,
LazyClearResourceOnFirstUse,
TurnOffVsync,
UseTemporaryBufferInCompressedTextureToTextureCopy,
UseD3D12ResourceHeapTier2,
UseD3D12RenderPass,
UseD3D12ResidencyManagement,
DisableResourceSuballocation,
SkipValidation,
VulkanUseD32S8,
VulkanUseS8,
MetalDisableSamplerCompare,
MetalUseSharedModeForCounterSampleBuffer,
DisableBaseVertex,
DisableBaseInstance,
DisableIndexedDrawBuffers,
DisableSnormRead,
DisableDepthRead,
DisableStencilRead,
DisableDepthStencilRead,
DisableBGRARead,
DisableSampleVariables,
UseD3D12SmallShaderVisibleHeapForTesting,
UseDXC,
DisableRobustness,
MetalEnableVertexPulling,
DisallowUnsafeAPIs,
AllowUnsafeAPIs,
FlushBeforeClientWaitSync,
UseTempBufferInSmallFormatTextureToTextureCopyFromGreaterToLessMipLevel,
EmitHLSLDebugSymbols,
DisallowSpirv,
DumpShaders,
ForceWGSLStep,
DisableWorkgroupInit,
DisableSymbolRenaming,
UseUserDefinedLabelsInBackend,
UsePlaceholderFragmentInVertexOnlyPipeline,
FxcOptimizations,
RecordDetailedTimingInTraceEvents,
DisableTimestampQueryConversion,
ClearBufferBeforeResolveQueries,
VulkanUseZeroInitializeWorkgroupMemoryExtension,
D3D12SplitBufferTextureCopyForRowsPerImagePaddings,
MetalRenderR8RG8UnormSmallMipToTempTexture,
DisableBlobCache,
D3D12ForceClearCopyableDepthStencilTextureOnCreation,
D3D12DontSetClearValueOnDepthTextureCreation,
D3D12AlwaysUseTypelessFormatsForCastableTexture,
D3D12AllocateExtraMemoryFor2DArrayColorTexture,
D3D12UseTempBufferInDepthStencilTextureAndBufferCopyWithNonZeroBufferOffset,
D3D12UseTempBufferInTextureToTextureCopyBetweenDifferentDimensions,
ApplyClearBigIntegerColorValueWithDraw,
MetalUseMockBlitEncoderForWriteTimestamp,
VulkanSplitCommandBufferOnDepthStencilComputeSampleAfterRenderPass,
DisableSubAllocationFor2DTextureWithCopyDstOrRenderAttachment,
MetalUseCombinedDepthStencilFormatForStencil8,
MetalUseBothDepthAndStencilAttachmentsForCombinedDepthStencilFormats,
MetalKeepMultisubresourceDepthStencilTexturesInitialized,
MetalFillEmptyOcclusionQueriesWithZero,
UseBlitForBufferToDepthTextureCopy,
UseBlitForBufferToStencilTextureCopy,
UseBlitForDepthTextureToTextureCopyToNonzeroSubresource,
UseBlitForDepth16UnormTextureToBufferCopy,
UseBlitForDepth32FloatTextureToBufferCopy,
D3D12ReplaceAddWithMinusWhenDstFactorIsZeroAndSrcFactorIsDstAlpha,
D3D12PolyfillReflectVec2F32,
VulkanClearGen12TextureWithCCSAmbiguateOnCreation,
// Unresolved issues.
NoWorkaroundSampleMaskBecomesZeroForAllButLastColorTarget,
NoWorkaroundIndirectBaseVertexNotApplied,
NoWorkaroundDstAlphaAsSrcBlendFactorForBothColorAndAlphaDoesNotWork,
EnumCount,
InvalidEnum = EnumCount,
};
// A wrapper of the bitset to store if a toggle is present or not. This wrapper provides the
// convenience to convert the enums of enum class Toggle to the indices of a bitset.
struct TogglesSet {
std::bitset<static_cast<size_t>(Toggle::EnumCount)> bitset;
using Iterator = BitSetIterator<static_cast<size_t>(Toggle::EnumCount), uint32_t>;
void Set(Toggle toggle, bool enabled);
bool Has(Toggle toggle) const;
size_t Count() const;
Iterator Iterate() const;
};
namespace stream {
class Sink;
}
// TogglesState hold the actual state of toggles for instances, adapters and devices. Each toggle
// is of one of these states: set/default to enabled/disabled, force set to enabled/disabled, or
// left unset without default value (and thus implicitly disabled).
class TogglesState {
public:
// Create an empty toggles state of given stage
explicit TogglesState(ToggleStage stage);
// Create a TogglesState from a DawnTogglesDescriptor, only considering toggles of
// required toggle stage.
static TogglesState CreateFromTogglesDescriptor(const DawnTogglesDescriptor* togglesDesc,
ToggleStage requiredStage);
// Inherit from a given toggles state of earlier stage, only inherit the forced and the
// unrequired toggles to allow overriding. Return *this to allow method chaining manner.
TogglesState& InheritFrom(const TogglesState& inheritedToggles);
// Set a toggle of the same stage of toggles state stage if and only if it is not already set.
void Default(Toggle toggle, bool enabled);
// Force set a toggle of same stage of toggles state stage. A force-set toggle will get
// inherited to all later stage as forced.
void ForceSet(Toggle toggle, bool enabled);
// Set a toggle of any stage for testing propose. Return *this to allow method chaining
// manner.
TogglesState& SetForTesting(Toggle toggle, bool enabled, bool forced);
// Return whether the toggle is set or not. Force-set is always treated as set.
bool IsSet(Toggle toggle) const;
// Return true if and only if the toggle is set to true.
bool IsEnabled(Toggle toggle) const;
ToggleStage GetStage() const;
std::vector<const char*> GetEnabledToggleNames() const;
std::vector<const char*> GetDisabledToggleNames() const;
// Friend definition of StreamIn which can be found by ADL to override stream::StreamIn<T>. This
// allows writing TogglesState to stream for cache key.
friend void StreamIn(stream::Sink* sink, const TogglesState& togglesState);
private:
// Indicating which stage of toggles state is this object holding for, instance, adapter, or
// device.
const ToggleStage mStage;
TogglesSet mTogglesSet;
TogglesSet mEnabledToggles;
TogglesSet mForcedToggles;
};
const char* ToggleEnumToName(Toggle toggle);
class TogglesInfo {
public:
TogglesInfo();
~TogglesInfo();
// Used to query the details of a toggle. Return nullptr if toggleName is not a valid name
// of a toggle supported in Dawn.
const ToggleInfo* GetToggleInfo(const char* toggleName);
// Used to query the details of a toggle enum. The enum value must not be Toggle::InvalidEnum,
// as Toggle::InvalidEnum doesn't has corresponding ToggleInfo.
static const ToggleInfo* GetToggleInfo(Toggle toggle);
Toggle ToggleNameToEnum(const char* toggleName);
private:
void EnsureToggleNameToEnumMapInitialized();
bool mToggleNameToEnumMapInitialized = false;
std::unordered_map<std::string, Toggle> mToggleNameToEnumMap;
};
} // namespace dawn::native
#endif // SRC_DAWN_NATIVE_TOGGLES_H_