michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: // vim:set ts=2 sts=2 sw=2 et cin:
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsCoreAnimationSupport_h__
michael@0: #define nsCoreAnimationSupport_h__
michael@0: #ifdef XP_MACOSX
michael@0: 
michael@0: #import <OpenGL/OpenGL.h>
michael@0: #import <OpenGL/gl.h>
michael@0: #import "ApplicationServices/ApplicationServices.h"
michael@0: #include "gfxTypes.h"
michael@0: #include "mozilla/RefPtr.h"
michael@0: #include "mozilla/gfx/MacIOSurface.h"
michael@0: #include "nsError.h"
michael@0: 
michael@0: // Get the system color space.
michael@0: CGColorSpaceRef CreateSystemColorSpace();
michael@0: 
michael@0: // Manages a CARenderer
michael@0: struct _CGLPBufferObject;
michael@0: struct _CGLContextObject;
michael@0: 
michael@0: enum AllowOfflineRendererEnum { ALLOW_OFFLINE_RENDERER, DISALLOW_OFFLINE_RENDERER };
michael@0: 
michael@0: class nsCARenderer : public mozilla::RefCounted<nsCARenderer> {
michael@0: public:
michael@0:   MOZ_DECLARE_REFCOUNTED_TYPENAME(nsCARenderer)
michael@0:   nsCARenderer() : mCARenderer(nullptr), mWrapperCALayer(nullptr), mFBOTexture(0),
michael@0:                    mOpenGLContext(nullptr), mCGImage(nullptr), mCGData(nullptr),
michael@0:                    mIOSurface(nullptr), mFBO(0), mIOTexture(0),
michael@0:                    mUnsupportedWidth(UINT32_MAX), mUnsupportedHeight(UINT32_MAX),
michael@0:                    mAllowOfflineRenderer(DISALLOW_OFFLINE_RENDERER),
michael@0:                    mContentsScaleFactor(1.0) {}
michael@0:   ~nsCARenderer();
michael@0:   // aWidth and aHeight are in "display pixels".  A "display pixel" is the
michael@0:   // smallest fully addressable part of a display.  But in HiDPI modes each
michael@0:   // "display pixel" corresponds to more than one device pixel.  Multiply
michael@0:   // display pixels by aContentsScaleFactor to get device pixels.
michael@0:   nsresult SetupRenderer(void* aCALayer, int aWidth, int aHeight,
michael@0:                          double aContentsScaleFactor,
michael@0:                          AllowOfflineRendererEnum aAllowOfflineRenderer);
michael@0:   // aWidth and aHeight are in "display pixels".  Multiply by
michael@0:   // aContentsScaleFactor to get device pixels.
michael@0:   nsresult Render(int aWidth, int aHeight,
michael@0:                   double aContentsScaleFactor,
michael@0:                   CGImageRef *aOutCAImage);
michael@0:   bool isInit() { return mCARenderer != nullptr; }
michael@0:   /*
michael@0:    * Render the CALayer to an IOSurface. If no IOSurface
michael@0:    * is attached then an internal pixel buffer will be
michael@0:    * used.
michael@0:    */
michael@0:   void AttachIOSurface(mozilla::RefPtr<MacIOSurface> aSurface);
michael@0:   IOSurfaceID GetIOSurfaceID();
michael@0:   // aX, aY, aWidth and aHeight are in "display pixels".  Multiply by
michael@0:   // surf->GetContentsScaleFactor() to get device pixels.
michael@0:   static nsresult DrawSurfaceToCGContext(CGContextRef aContext,
michael@0:                                          MacIOSurface *surf,
michael@0:                                          CGColorSpaceRef aColorSpace,
michael@0:                                          int aX, int aY,
michael@0:                                          size_t aWidth, size_t aHeight);
michael@0: 
michael@0:   // Remove & Add the layer without destroying
michael@0:   // the renderer for fast back buffer swapping.
michael@0:   void DetachCALayer();
michael@0:   void AttachCALayer(void *aCALayer);
michael@0: #ifdef DEBUG
michael@0:   static void SaveToDisk(MacIOSurface *surf);
michael@0: #endif
michael@0: private:
michael@0:   // aWidth and aHeight are in "display pixels".  Multiply by
michael@0:   // mContentsScaleFactor to get device pixels.
michael@0:   void SetBounds(int aWidth, int aHeight);
michael@0:   // aWidth and aHeight are in "display pixels".  Multiply by
michael@0:   // mContentsScaleFactor to get device pixels.
michael@0:   void SetViewport(int aWidth, int aHeight);
michael@0:   void Destroy();
michael@0: 
michael@0:   void *mCARenderer;
michael@0:   void *mWrapperCALayer;
michael@0:   GLuint                    mFBOTexture;
michael@0:   _CGLContextObject        *mOpenGLContext;
michael@0:   CGImageRef                mCGImage;
michael@0:   void                     *mCGData;
michael@0:   mozilla::RefPtr<MacIOSurface> mIOSurface;
michael@0:   uint32_t                  mFBO;
michael@0:   uint32_t                  mIOTexture;
michael@0:   int                       mUnsupportedWidth;
michael@0:   int                       mUnsupportedHeight;
michael@0:   AllowOfflineRendererEnum  mAllowOfflineRenderer;
michael@0:   double                    mContentsScaleFactor;
michael@0: };
michael@0: 
michael@0: #endif // XP_MACOSX
michael@0: #endif // nsCoreAnimationSupport_h__
michael@0: