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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// vim:set ts=2 sts=2 sw=2 et cin:
/* 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 nsCoreAnimationSupport_h__
#define nsCoreAnimationSupport_h__
#ifdef XP_MACOSX
#import <OpenGL/OpenGL.h>
#import <OpenGL/gl.h>
#import "ApplicationServices/ApplicationServices.h"
#include "gfxTypes.h"
#include "mozilla/RefPtr.h"
#include "mozilla/gfx/MacIOSurface.h"
#include "nsError.h"
// Get the system color space.
CGColorSpaceRef CreateSystemColorSpace();
// Manages a CARenderer
struct _CGLContextObject;
enum AllowOfflineRendererEnum { ALLOW_OFFLINE_RENDERER, DISALLOW_OFFLINE_RENDERER };
class nsCARenderer : public mozilla::RefCounted<nsCARenderer> {
public:
MOZ_DECLARE_REFCOUNTED_TYPENAME(nsCARenderer)
nsCARenderer() : mCARenderer(nullptr), mWrapperCALayer(nullptr), mFBOTexture(0),
mOpenGLContext(nullptr), mCGImage(nullptr), mCGData(nullptr),
mIOSurface(nullptr), mFBO(0), mIOTexture(0),
mUnsupportedWidth(UINT32_MAX), mUnsupportedHeight(UINT32_MAX),
mAllowOfflineRenderer(DISALLOW_OFFLINE_RENDERER),
mContentsScaleFactor(1.0) {}
~nsCARenderer();
// aWidth and aHeight are in "display pixels". A "display pixel" is the
// smallest fully addressable part of a display. But in HiDPI modes each
// "display pixel" corresponds to more than one device pixel. Multiply
// display pixels by aContentsScaleFactor to get device pixels.
nsresult SetupRenderer(void* aCALayer, int aWidth, int aHeight,
double aContentsScaleFactor,
AllowOfflineRendererEnum aAllowOfflineRenderer);
// aWidth and aHeight are in "display pixels". Multiply by
// aContentsScaleFactor to get device pixels.
nsresult Render(int aWidth, int aHeight,
double aContentsScaleFactor,
CGImageRef *aOutCAImage);
bool isInit() { return mCARenderer != nullptr; }
/*
* Render the CALayer to an IOSurface. If no IOSurface
* is attached then an internal pixel buffer will be
* used.
*/
void AttachIOSurface(MacIOSurface *aSurface);
IOSurfaceID GetIOSurfaceID();
// aX, aY, aWidth and aHeight are in "display pixels". Multiply by
// surf->GetContentsScaleFactor() to get device pixels.
static nsresult DrawSurfaceToCGContext(CGContextRef aContext,
MacIOSurface *surf,
CGColorSpaceRef aColorSpace,
int aX, int aY,
size_t aWidth, size_t aHeight);
// Remove & Add the layer without destroying
// the renderer for fast back buffer swapping.
void DetachCALayer();
void AttachCALayer(void *aCALayer);
#ifdef DEBUG
static void SaveToDisk(MacIOSurface *surf);
#endif
private:
// aWidth and aHeight are in "display pixels". Multiply by
// mContentsScaleFactor to get device pixels.
void SetBounds(int aWidth, int aHeight);
// aWidth and aHeight are in "display pixels". Multiply by
// mContentsScaleFactor to get device pixels.
void SetViewport(int aWidth, int aHeight);
void Destroy();
void *mCARenderer;
void *mWrapperCALayer;
GLuint mFBOTexture;
_CGLContextObject *mOpenGLContext;
CGImageRef mCGImage;
void *mCGData;
RefPtr<MacIOSurface> mIOSurface;
uint32_t mFBO;
uint32_t mIOTexture;
int mUnsupportedWidth;
int mUnsupportedHeight;
AllowOfflineRendererEnum mAllowOfflineRenderer;
double mContentsScaleFactor;
};
#endif // XP_MACOSX
#endif // nsCoreAnimationSupport_h__
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