Bug 1490537 - init and shutdown Skia in the GPU process. r=mattwoodrow

gfx/2d/2D.h

@@ -1865,7 +1865,7 @@ public:
 
 private:
   static FT_Library mFTLibrary;
-  static Mutex* mFTLock;
+  static StaticMutex mFTLock;
 public:
 #endif
 

gfx/2d/Factory.cpp

@@ -46,7 +46,6 @@
 #include <d3d10_1.h>
 #include "HelpersD2D.h"
 #include "HelpersWinFonts.h"
-#include "mozilla/Mutex.h"
 #endif
 
 #include "DrawTargetCapture.h"
@@ -67,8 +66,6 @@
 #ifdef MOZ_ENABLE_FREETYPE
 #include "ft2build.h"
 #include FT_FREETYPE_H
-
-#include "mozilla/Mutex.h"
 #endif
 #include "MainThreadUtils.h"
 
@@ -219,7 +216,7 @@ int32_t LoggingPrefs::sGfxLogLevel = LOG_DEFAULT;
 
 #ifdef MOZ_ENABLE_FREETYPE
 FT_Library Factory::mFTLibrary = nullptr;
-Mutex* Factory::mFTLock = nullptr;
+StaticMutex Factory::mFTLock;
 #endif
 
 #ifdef WIN32
@@ -243,10 +240,6 @@ Factory::Init(const Config& aConfig)
 {
   MOZ_ASSERT(!sConfig);
   sConfig = new Config(aConfig);
-
-#ifdef MOZ_ENABLE_FREETYPE
-  mFTLock = new Mutex("Factory::mFTLock");
-#endif
 }
 
 void
@@ -260,10 +253,6 @@ Factory::ShutDown()
 
 #ifdef MOZ_ENABLE_FREETYPE
   mFTLibrary = nullptr;
-  if (mFTLock) {
-    delete mFTLock;
-    mFTLock = nullptr;
-  }
 #endif
 }
 
@@ -764,22 +753,19 @@ Factory::ReleaseFTLibrary(FT_Library aFTLibrary)
 void
 Factory::LockFTLibrary(FT_Library aFTLibrary)
 {
-  MOZ_ASSERT(mFTLock);
-  mFTLock->Lock();
+  mFTLock.Lock();
 }
 
 void
 Factory::UnlockFTLibrary(FT_Library aFTLibrary)
 {
-  MOZ_ASSERT(mFTLock);
-  mFTLock->Unlock();
+  mFTLock.Unlock();
 }
 
 FT_Face
 Factory::NewFTFace(FT_Library aFTLibrary, const char* aFileName, int aFaceIndex)
 {
-  MOZ_ASSERT(mFTLock);
-  MutexAutoLock lock(*mFTLock);
+  StaticMutexAutoLock lock(mFTLock);
   if (!aFTLibrary) {
     aFTLibrary = mFTLibrary;
   }
@@ -793,8 +779,7 @@ Factory::NewFTFace(FT_Library aFTLibrary, const char* aFileName, int aFaceIndex)
 FT_Face
 Factory::NewFTFaceFromData(FT_Library aFTLibrary, const uint8_t* aData, size_t aDataSize, int aFaceIndex)
 {
-  MOZ_ASSERT(mFTLock);
-  MutexAutoLock lock(*mFTLock);
+  StaticMutexAutoLock lock(mFTLock);
   if (!aFTLibrary) {
     aFTLibrary = mFTLibrary;
   }
@@ -808,23 +793,14 @@ Factory::NewFTFaceFromData(FT_Library aFTLibrary, const uint8_t* aData, size_t a
 void
 Factory::ReleaseFTFace(FT_Face aFace)
 {
-  // May be called during shutdown when the lock is already destroyed.
-  // However, there are no other threads using the face by this point,
-  // so it is safe to skip locking if the lock is not around.
-  if (mFTLock) {
-    mFTLock->Lock();
-  }
+  StaticMutexAutoLock lock(mFTLock);
   FT_Done_Face(aFace);
-  if (mFTLock) {
-    mFTLock->Unlock();
-  }
 }
 
 FT_Error
 Factory::LoadFTGlyph(FT_Face aFace, uint32_t aGlyphIndex, int32_t aFlags)
 {
-  MOZ_ASSERT(mFTLock);
-  MutexAutoLock lock(*mFTLock);
+  StaticMutexAutoLock lock(mFTLock);
   return FT_Load_Glyph(aFace, aGlyphIndex, aFlags);
 }
 #endif
@@ -1028,7 +1004,7 @@ Factory::CreateScaledFontForDWriteFont(IDWriteFontFace* aFontFace,
                                          aStyle);
 }
 
-#endif // XP_WIN
+#endif // WIN32
 
 #ifdef USE_SKIA_GPU
 already_AddRefed<DrawTarget>

gfx/ipc/GPUParent.cpp

@@ -38,6 +38,7 @@
 #include "mozilla/webrender/RenderThread.h"
 #include "mozilla/webrender/WebRenderAPI.h"
 #include "mozilla/HangDetails.h"
+#include "nscore.h"
 #include "nsDebugImpl.h"
 #include "nsIGfxInfo.h"
 #include "nsThreadManager.h"
@@ -47,6 +48,8 @@
 #include "VRManager.h"
 #include "VRManagerParent.h"
 #include "VsyncBridgeParent.h"
+#include "cairo.h"
+#include "skia/include/core/SkGraphics.h"
 #if defined(XP_WIN)
 # include "mozilla/gfx/DeviceManagerDx.h"
 # include <process.h>
@@ -54,6 +57,7 @@
 #endif
 #ifdef MOZ_WIDGET_GTK
 # include <gtk/gtk.h>
+# include "skia/include/ports/SkTypeface_cairo.h"
 #endif
 #ifdef MOZ_GECKO_PROFILER
 #include "ChildProfilerController.h"
@@ -220,6 +224,10 @@ GPUParent::RecvInit(nsTArray<GfxPrefSetting>&& prefs,
     LayerTreeOwnerTracker::Get()->Map(map.layersId(), map.ownerId());
   }
 
+  // We bypass gfxPlatform::Init, so we must initialize any relevant libraries
+  // here that would normally be initialized there.
+  SkGraphics::Init();
+
 #if defined(XP_WIN)
   if (gfxConfig::IsEnabled(Feature::D3D11_COMPOSITING)) {
     DeviceManagerDx::Get()->CreateCompositorDevices();
@@ -260,6 +268,8 @@ GPUParent::RecvInit(nsTArray<GfxPrefSetting>&& prefs,
     FT_Library library = Factory::NewFTLibrary();
     MOZ_ASSERT(library);
     Factory::SetFTLibrary(library);
+
+    SkInitCairoFT(true);
   }
 #endif
 
@@ -552,6 +562,14 @@ GPUParent::ActorDestroy(ActorDestroyReason aWhy)
 #endif
 
   Factory::ShutDown();
+
+  // We bypass gfxPlatform shutdown, so we must shutdown any libraries here
+  // that would normally be handled by it.
+#ifdef NS_FREE_PERMANENT_DATA
+  SkGraphics::PurgeFontCache();
+  cairo_debug_reset_static_data();
+#endif
+
 #if defined(XP_WIN)
   DeviceManagerDx::Shutdown();
 #endif

gfx/ipc/moz.build

@@ -86,3 +86,5 @@ FINAL_LIBRARY = 'xul'
 
 CXXFLAGS += CONFIG['MOZ_CAIRO_CFLAGS']
 CXXFLAGS += CONFIG['TK_CFLAGS']
+
+LOCAL_INCLUDES += CONFIG['SKIA_INCLUDES']