Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 253 insertions, 0 deletions

diff --git a/gfx/config/gfxVars.h b/gfx/config/gfxVars.h
new file mode 100644
index 0000000000..087540ad96
--- /dev/null
+++ b/gfx/config/gfxVars.h
@@ -0,0 +1,253 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef mozilla_gfx_config_gfxVars_h
+#define mozilla_gfx_config_gfxVars_h
+
+#include <stdint.h>
+#include "mozilla/Assertions.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/gfx/GraphicsMessages.h"
+#include "mozilla/gfx/Point.h"
+#include "mozilla/gfx/Types.h"
+#include "nsTArray.h"
+#include "nsXULAppAPI.h"
+
+namespace mozilla::gfx {
+
+class gfxVarReceiver;
+
+// Generator for graphics vars.
+#define GFX_VARS_LIST(_)                                           \
+  /* C++ Name,                  Data Type,        Default Value */ \
+  _(AllowEglRbab, bool, true)                                      \
+  _(AllowWebgl2, bool, true)                                       \
+  _(AllowWebglAccelAngle, bool, true)                              \
+  _(AllowWebglOop, bool, true)                                     \
+  _(BrowserTabsRemoteAutostart, bool, false)                       \
+  _(ContentBackend, BackendType, BackendType::NONE)                \
+  _(SoftwareBackend, BackendType, BackendType::NONE)               \
+  _(OffscreenFormat, gfxImageFormat,                               \
+    mozilla::gfx::SurfaceFormat::X8R8G8B8_UINT32)                  \
+  _(RequiresAcceleratedGLContextForCompositorOGL, bool, false)     \
+  _(CanUseHardwareVideoDecoding, bool, false)                      \
+  _(DXInterop2Blocked, bool, false)                                \
+  _(DXNV12Blocked, bool, false)                                    \
+  _(DXP010Blocked, bool, false)                                    \
+  _(DXP016Blocked, bool, false)                                    \
+  _(UseWebRenderANGLE, bool, false)                                \
+  _(UseWebRenderFlipSequentialWin, bool, false)                    \
+  _(UseWebRenderDCompWin, bool, false)                             \
+  _(UseWebRenderDCompVideoOverlayWin, bool, false)                 \
+  _(UseWebRenderTripleBufferingWin, bool, false)                   \
+  _(UseWebRenderCompositor, bool, false)                           \
+  _(UseWebRenderProgramBinaryDisk, bool, false)                    \
+  _(UseWebRenderOptimizedShaders, bool, false)                     \
+  _(UseWebRenderScissoredCacheClears, bool, true)                  \
+  _(WebRenderProfilerUI, nsCString, nsCString())                   \
+  _(WebglAllowCoreProfile, bool, true)                             \
+  _(WebglAllowWindowsNativeGl, bool, false)                        \
+  _(WebRenderMaxPartialPresentRects, int32_t, 0)                   \
+  _(WebRenderDebugFlags, int32_t, 0)                               \
+  _(WebRenderBoolParameters, int32_t, 0)                           \
+  _(WebRenderBatchingLookback, int32_t, 10)                        \
+  _(WebRenderBlobTileSize, int32_t, 256)                           \
+  _(WebRenderBatchedUploadThreshold, int32_t, 512 * 512)           \
+  _(UseSoftwareWebRender, bool, false)                             \
+  _(AllowSoftwareWebRenderD3D11, bool, false)                      \
+  _(ScreenDepth, int32_t, 0)                                       \
+  _(GREDirectory, nsString, nsString())                            \
+  _(ProfDirectory, nsString, nsString())                           \
+  _(AllowD3D11KeyedMutex, bool, false)                             \
+  _(SwapIntervalGLX, bool, false)                                  \
+  _(SwapIntervalEGL, bool, false)                                  \
+  _(SystemTextQuality, int32_t, 5 /* CLEARTYPE_QUALITY */)         \
+  _(SystemTextClearTypeLevel, float, 1.0f)                         \
+  _(SystemTextEnhancedContrast, float, 1.0f)                       \
+  _(SystemTextGamma, float, 2.2f)                                  \
+  _(SystemTextPixelGeometry, int32_t, 1 /* pixel geometry RGB */)  \
+  _(SystemTextRenderingMode, int32_t, 0)                           \
+  _(SystemGDIGamma, float, 1.4f)                                   \
+  _(LayersWindowRecordingPath, nsCString, nsCString())             \
+  _(RemoteCanvasEnabled, bool, false)                              \
+  _(UseDoubleBufferingWithCompositor, bool, false)                 \
+  _(UseGLSwizzle, bool, true)                                      \
+  _(ForceSubpixelAAWherePossible, bool, false)                     \
+  _(DwmCompositionEnabled, bool, true)                             \
+  _(FxREmbedded, bool, false)                                      \
+  _(UseAHardwareBufferSharedSurfaceWebglOop, bool, false)          \
+  _(UseEGL, bool, false)                                           \
+  _(DrmRenderDevice, nsCString, nsCString())                       \
+  _(UseDMABuf, bool, false)                                        \
+  _(DMABufModifiersXRGB, ArrayOfuint64_t, nsTArray<uint64_t>())    \
+  _(DMABufModifiersARGB, ArrayOfuint64_t, nsTArray<uint64_t>())    \
+  _(CodecSupportInfo, nsCString, nsCString())                      \
+  _(WebRenderRequiresHardwareDriver, bool, false)                  \
+  _(SupportsThreadsafeGL, bool, false)                             \
+  _(AllowWebGPU, bool, false)                                      \
+  _(UseVP8HwDecode, bool, false)                                   \
+  _(UseVP9HwDecode, bool, false)                                   \
+  _(UseAV1HwDecode, bool, false)                                   \
+  _(UseH264HwDecode, bool, false)                                  \
+  _(HwDecodedVideoZeroCopy, bool, false)                           \
+  _(UseDMABufSurfaceExport, bool, true)                            \
+  _(ReuseDecoderDevice, bool, false)                               \
+  _(UseCanvasRenderThread, bool, false)                            \
+  _(AllowBackdropFilter, bool, true)                               \
+  _(WebglOopAsyncPresentForceSync, bool, true)                     \
+  _(UseAcceleratedCanvas2D, bool, false)                           \
+  _(UseWebRenderDCompSwVideoOverlayWin, bool, false)               \
+  _(WebglUseHardware, bool, true)
+
+/* Add new entries above this line. */
+
+// Some graphics settings are computed on the UI process and must be
+// communicated to content and GPU processes. gfxVars helps facilitate
+// this. Its function is similar to StaticPrefs, except rather than hold
+// user preferences, it holds dynamically computed values.
+//
+// Each variable in GFX_VARS_LIST exposes the following static methods:
+//
+//    const DataType& CxxName();
+//    void SetCxxName(const DataType& aValue);
+//
+// Note that the setter may only be called in the UI process; a gfxVar must be
+// a variable that is determined in the UI process and pushed to child
+// processes.
+class gfxVars final {
+ public:
+  // These values will be used during the Initialize() call if set.  Any
+  // updates that come before initialization will get added to this array.
+  static void SetValuesForInitialize(
+      const nsTArray<GfxVarUpdate>& aInitUpdates);
+
+  static void Initialize();
+  static void Shutdown();
+
+  static void ApplyUpdate(const GfxVarUpdate& aUpdate);
+  static void AddReceiver(gfxVarReceiver* aReceiver);
+  static void RemoveReceiver(gfxVarReceiver* aReceiver);
+
+  // Return a list of updates for all variables with non-default values.
+  static nsTArray<GfxVarUpdate> FetchNonDefaultVars();
+
+ private:
+  template <typename U>
+  static U CloneVarValue(const U& aValue) {
+    return aValue;
+  }
+
+  template <typename U>
+  static nsTArray<U> CloneVarValue(const nsTArray<U>& aValue) {
+    return aValue.Clone();
+  }
+
+ public:
+  // Each variable must expose Set and Get methods for IPDL.
+  class VarBase {
+   public:
+    VarBase();
+    virtual void SetValue(const GfxVarValue& aValue) = 0;
+    virtual void GetValue(GfxVarValue* aOutValue) = 0;
+    virtual bool HasDefaultValue() const = 0;
+    size_t Index() const { return mIndex; }
+
+   private:
+    size_t mIndex;
+  };
+
+  // Whether the gfxVars singleton instance has been initialized. Most gfx code
+  // doesn't need to check this, but code that can potentially run before
+  // gfxPlatform initialization can use this to check whether gfxVars are
+  // available yet.
+  static bool IsInitialized() { return sInstance != nullptr; }
+
+ private:
+  static StaticAutoPtr<gfxVars> sInstance;
+  static StaticAutoPtr<nsTArray<VarBase*>> sVarList;
+
+  template <typename T, T Default(), T GetFrom(const GfxVarValue& aValue)>
+  class VarImpl final : public VarBase {
+   public:
+    VarImpl() : mValue(Default()) {}
+    void SetValue(const GfxVarValue& aValue) override {
+      mValue = GetFrom(aValue);
+      if (mListener) {
+        mListener();
+      }
+    }
+    void GetValue(GfxVarValue* aOutValue) override {
+      *aOutValue = GfxVarValue(mValue);
+    }
+    bool HasDefaultValue() const override { return mValue == Default(); }
+    const T& Get() const { return mValue; }
+
+    // Return true if the value changed, false otherwise.
+    bool Set(const T& aValue) {
+      MOZ_ASSERT(XRE_IsParentProcess());
+      if (mValue == aValue) {
+        return false;
+      }
+      mValue = CloneVarValue(aValue);
+      if (mListener) {
+        mListener();
+      }
+      return true;
+    }
+
+    void SetListener(const std::function<void()>& aListener) {
+      mListener = aListener;
+    }
+
+   private:
+    T mValue;
+    std::function<void()> mListener;
+  };
+
+#define GFX_VAR_DECL(CxxName, DataType, DefaultValue)                          \
+ private:                                                                      \
+  static DataType Get##CxxName##Default() { return DefaultValue; }             \
+  static DataType Get##CxxName##From(const GfxVarValue& aValue) {              \
+    return CloneVarValue(aValue.get_##DataType());                             \
+  }                                                                            \
+  VarImpl<DataType, Get##CxxName##Default, Get##CxxName##From> mVar##CxxName;  \
+                                                                               \
+ public:                                                                       \
+  static const DataType& CxxName() { return sInstance->mVar##CxxName.Get(); }  \
+  static DataType Get##CxxName##OrDefault() {                                  \
+    if (!sInstance) {                                                          \
+      return DefaultValue;                                                     \
+    }                                                                          \
+    return CloneVarValue(sInstance->mVar##CxxName.Get());                      \
+  }                                                                            \
+  static void Set##CxxName(const DataType& aValue) {                           \
+    if (sInstance->mVar##CxxName.Set(aValue)) {                                \
+      sInstance->NotifyReceivers(&sInstance->mVar##CxxName);                   \
+    }                                                                          \
+  }                                                                            \
+                                                                               \
+  static void Set##CxxName##Listener(const std::function<void()>& aListener) { \
+    sInstance->mVar##CxxName.SetListener(aListener);                           \
+  }
+
+  using ArrayOfuint64_t = nsTArray<uint64_t>;
+
+  GFX_VARS_LIST(GFX_VAR_DECL)
+#undef GFX_VAR_DECL
+
+ private:
+  gfxVars();
+
+  void NotifyReceivers(VarBase* aVar);
+
+ private:
+  nsTArray<gfxVarReceiver*> mReceivers;
+};
+
+#undef GFX_VARS_LIST
+
+}  // namespace mozilla::gfx
+
+#endif  // mozilla_gfx_config_gfxVars_h