gfx/gl/SkiaGLGlue.h

   1 /* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3 * License, v. 2.0. If a copy of the MPL was not distributed with this
   4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "mozilla/RefPtr.h"
   7
   8 #ifdef USE_SKIA_GPU
   9
  10 #include "GLContext.h"
  11 #include "skia/GrGLInterface.h"
  12 #include "skia/GrContext.h"
  13 #include "mozilla/gfx/HelpersSkia.h"
  14
  15 namespace mozilla {
  16 namespace gl {
  17
  18 class SkiaGLGlue : public GenericAtomicRefCounted
  19 {
  20 public:
  21   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(SkiaGLGlue)
  22   explicit SkiaGLGlue(GLContext* context);
  23   GLContext* GetGLContext() const { return mGLContext.get(); }
  24   GrContext* GetGrContext() const { return mGrContext.get(); }
  25
  26 protected:
  27   virtual ~SkiaGLGlue() {
  28     /*
  29      * These members have inter-dependencies, but do not keep each other alive, so
  30      * destruction order is very important here: mGrContext uses mGrGLInterface, and
  31      * through it, uses mGLContext
  32      */
  33     mGrContext = nullptr;
  34     mGrGLInterface = nullptr;
  35     mGLContext = nullptr;
  36   }
  37
  38 private:
  39   RefPtr<GLContext> mGLContext;
  40   mozilla::gfx::RefPtrSkia<GrGLInterface> mGrGLInterface;
  41   mozilla::gfx::RefPtrSkia<GrContext> mGrContext;
  42 };
  43
  44 }
  45 }
  46
  47 #else
  48
  49 class GrContext;
  50
  51 namespace mozilla {
  52 namespace gl {
  53
  54 class GLContext;
  55
  56 class SkiaGLGlue : public GenericAtomicRefCounted
  57 {
  58 public:
  59   SkiaGLGlue(GLContext* context);
  60   GLContext* GetGLContext() const { return nullptr; }
  61   GrContext* GetGrContext() const { return nullptr; }
  62 };
  63 }
  64 }
  65
  66 #endif