зеркало из https://github.com/mozilla/gecko-dev.git
220 строки
9.8 KiB
C++
220 строки
9.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_gfx_config_gfxVars_h
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#define mozilla_gfx_config_gfxVars_h
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#include <stdint.h>
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#include "mozilla/Assertions.h"
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#include "mozilla/StaticPtr.h"
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#include "mozilla/gfx/GraphicsMessages.h"
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#include "mozilla/gfx/Point.h"
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#include "mozilla/gfx/Types.h"
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#include "nsTArray.h"
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#include "nsXULAppAPI.h"
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namespace mozilla {
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namespace gfx {
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class gfxVarReceiver;
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// Generator for graphics vars.
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#define GFX_VARS_LIST(_) \
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/* C++ Name, Data Type, Default Value */ \
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_(AllowEglRbab, bool, true) \
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_(AllowWebgl2, bool, true) \
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_(AllowWebglAccelAngle, bool, true) \
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_(AllowWebglOop, bool, true) \
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_(BrowserTabsRemoteAutostart, bool, false) \
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_(ContentBackend, BackendType, BackendType::NONE) \
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_(SoftwareBackend, BackendType, BackendType::NONE) \
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_(OffscreenFormat, gfxImageFormat, \
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mozilla::gfx::SurfaceFormat::X8R8G8B8_UINT32) \
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_(RequiresAcceleratedGLContextForCompositorOGL, bool, false) \
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_(CanUseHardwareVideoDecoding, bool, false) \
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_(DXInterop2Blocked, bool, false) \
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_(DXNV12Blocked, bool, false) \
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_(DXP010Blocked, bool, false) \
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_(DXP016Blocked, bool, false) \
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_(UseWebRender, bool, false) \
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_(UseWebRenderANGLE, bool, false) \
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_(UseWebRenderFlipSequentialWin, bool, false) \
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_(UseWebRenderDCompWin, bool, false) \
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_(UseWebRenderDCompVideoOverlayWin, bool, false) \
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_(UseWebRenderTripleBufferingWin, bool, false) \
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_(UseWebRenderCompositor, bool, false) \
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_(UseWebRenderProgramBinaryDisk, bool, false) \
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_(UseWebRenderOptimizedShaders, bool, false) \
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_(UseWebRenderScissoredCacheClears, bool, true) \
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_(WebRenderProfilerUI, nsCString, nsCString()) \
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_(WebglAllowCoreProfile, bool, true) \
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_(WebglAllowWindowsNativeGl, bool, false) \
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_(WebRenderMaxPartialPresentRects, int32_t, 0) \
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_(WebRenderDebugFlags, int32_t, 0) \
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_(WebRenderBoolParameters, int32_t, 0) \
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_(WebRenderBatchingLookback, int32_t, 10) \
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_(WebRenderBlobTileSize, int32_t, 256) \
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_(WebRenderBatchedUploadThreshold, int32_t, 512 * 512) \
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_(UseSoftwareWebRender, bool, false) \
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_(AllowSoftwareWebRenderD3D11, bool, false) \
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_(ScreenDepth, int32_t, 0) \
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_(GREDirectory, nsString, nsString()) \
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_(ProfDirectory, nsString, nsString()) \
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_(AllowD3D11KeyedMutex, bool, false) \
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_(SwapIntervalGLX, bool, false) \
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_(SwapIntervalEGL, bool, false) \
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_(SystemTextQuality, int32_t, 5 /* CLEARTYPE_QUALITY */) \
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_(SystemTextClearTypeLevel, float, 1.0f) \
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_(SystemTextEnhancedContrast, float, 1.0f) \
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_(SystemTextGamma, float, 2.2f) \
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_(SystemTextPixelGeometry, int32_t, 1 /* pixel geometry RGB */) \
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_(SystemTextRenderingMode, int32_t, 0) \
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_(SystemGDIGamma, float, 1.4f) \
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_(LayersWindowRecordingPath, nsCString, nsCString()) \
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_(RemoteCanvasEnabled, bool, false) \
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_(UseDoubleBufferingWithCompositor, bool, false) \
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_(UseGLSwizzle, bool, true) \
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_(ForceSubpixelAAWherePossible, bool, false) \
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_(DwmCompositionEnabled, bool, true) \
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_(FxREmbedded, bool, false) \
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_(UseAHardwareBufferContent, bool, false) \
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_(UseAHardwareBufferSharedSurface, bool, false) \
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_(UseEGL, bool, false) \
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_(DrmRenderDevice, nsCString, nsCString()) \
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_(UseDMABuf, bool, false) \
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_(WebRenderRequiresHardwareDriver, bool, false)
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/* Add new entries above this line. */
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// Some graphics settings are computed on the UI process and must be
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// communicated to content and GPU processes. gfxVars helps facilitate
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// this. Its function is similar to StaticPrefs, except rather than hold
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// user preferences, it holds dynamically computed values.
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//
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// Each variable in GFX_VARS_LIST exposes the following static methods:
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//
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// const DataType& CxxName();
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// void SetCxxName(const DataType& aValue);
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//
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// Note that the setter may only be called in the UI process; a gfxVar must be
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// a variable that is determined in the UI process and pushed to child
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// processes.
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class gfxVars final {
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public:
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// These values will be used during the Initialize() call if set. Any
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// updates that come before initialization will get added to this array.
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static void SetValuesForInitialize(
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const nsTArray<GfxVarUpdate>& aInitUpdates);
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static void Initialize();
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static void Shutdown();
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static void ApplyUpdate(const GfxVarUpdate& aUpdate);
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static void AddReceiver(gfxVarReceiver* aReceiver);
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static void RemoveReceiver(gfxVarReceiver* aReceiver);
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// Return a list of updates for all variables with non-default values.
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static nsTArray<GfxVarUpdate> FetchNonDefaultVars();
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public:
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// Each variable must expose Set and Get methods for IPDL.
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class VarBase {
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public:
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VarBase();
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virtual void SetValue(const GfxVarValue& aValue) = 0;
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virtual void GetValue(GfxVarValue* aOutValue) = 0;
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virtual bool HasDefaultValue() const = 0;
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size_t Index() const { return mIndex; }
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private:
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size_t mIndex;
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};
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private:
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static StaticAutoPtr<gfxVars> sInstance;
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static StaticAutoPtr<nsTArray<VarBase*>> sVarList;
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template <typename T, T Default(), T GetFrom(const GfxVarValue& aValue)>
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class VarImpl final : public VarBase {
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public:
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VarImpl() : mValue(Default()) {}
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void SetValue(const GfxVarValue& aValue) override {
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mValue = GetFrom(aValue);
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if (mListener) {
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mListener();
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}
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}
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void GetValue(GfxVarValue* aOutValue) override {
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*aOutValue = GfxVarValue(mValue);
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}
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bool HasDefaultValue() const override { return mValue == Default(); }
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const T& Get() const { return mValue; }
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// Return true if the value changed, false otherwise.
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bool Set(const T& aValue) {
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MOZ_ASSERT(XRE_IsParentProcess());
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if (mValue == aValue) {
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return false;
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}
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mValue = aValue;
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if (mListener) {
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mListener();
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}
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return true;
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}
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void SetListener(const std::function<void()>& aListener) {
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mListener = aListener;
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}
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private:
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T mValue;
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std::function<void()> mListener;
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};
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#define GFX_VAR_DECL(CxxName, DataType, DefaultValue) \
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private: \
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static DataType Get##CxxName##Default() { return DefaultValue; } \
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static DataType Get##CxxName##From(const GfxVarValue& aValue) { \
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return aValue.get_##DataType(); \
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} \
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VarImpl<DataType, Get##CxxName##Default, Get##CxxName##From> mVar##CxxName; \
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\
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public: \
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static const DataType& CxxName() { return sInstance->mVar##CxxName.Get(); } \
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static DataType Get##CxxName##OrDefault() { \
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if (!sInstance) { \
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return DefaultValue; \
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} \
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return sInstance->mVar##CxxName.Get(); \
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} \
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static void Set##CxxName(const DataType& aValue) { \
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if (sInstance->mVar##CxxName.Set(aValue)) { \
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sInstance->NotifyReceivers(&sInstance->mVar##CxxName); \
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} \
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} \
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\
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static void Set##CxxName##Listener(const std::function<void()>& aListener) { \
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sInstance->mVar##CxxName.SetListener(aListener); \
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}
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GFX_VARS_LIST(GFX_VAR_DECL)
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#undef GFX_VAR_DECL
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private:
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gfxVars();
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void NotifyReceivers(VarBase* aVar);
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private:
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nsTArray<gfxVarReceiver*> mReceivers;
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};
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#undef GFX_VARS_LIST
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} // namespace gfx
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} // namespace mozilla
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#endif // mozilla_gfx_config_gfxVars_h
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