зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
3.7 KiB
C++
107 строки
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsCoreAnimationSupport_h__
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#define nsCoreAnimationSupport_h__
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#ifdef XP_MACOSX
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# import <OpenGL/OpenGL.h>
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# import <OpenGL/gl.h>
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# import "ApplicationServices/ApplicationServices.h"
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# include "gfxTypes.h"
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# include "mozilla/RefPtr.h"
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# include "mozilla/gfx/MacIOSurface.h"
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# include "nsError.h"
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// Get the system color space.
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CGColorSpaceRef CreateSystemColorSpace();
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// Manages a CARenderer
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struct _CGLContextObject;
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enum AllowOfflineRendererEnum {
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ALLOW_OFFLINE_RENDERER,
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DISALLOW_OFFLINE_RENDERER
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};
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class nsCARenderer : public mozilla::RefCounted<nsCARenderer> {
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public:
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MOZ_DECLARE_REFCOUNTED_TYPENAME(nsCARenderer)
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nsCARenderer()
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: mCARenderer(nullptr),
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mWrapperCALayer(nullptr),
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mFBOTexture(0),
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mOpenGLContext(nullptr),
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mCGImage(nullptr),
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mCGData(nullptr),
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mIOSurface(nullptr),
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mFBO(0),
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mIOTexture(0),
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mUnsupportedWidth(UINT32_MAX),
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mUnsupportedHeight(UINT32_MAX),
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mAllowOfflineRenderer(DISALLOW_OFFLINE_RENDERER),
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mContentsScaleFactor(1.0) {}
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~nsCARenderer();
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// aWidth and aHeight are in "display pixels". A "display pixel" is the
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// smallest fully addressable part of a display. But in HiDPI modes each
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// "display pixel" corresponds to more than one device pixel. Multiply
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// display pixels by aContentsScaleFactor to get device pixels.
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nsresult SetupRenderer(void* aCALayer, int aWidth, int aHeight,
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double aContentsScaleFactor,
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AllowOfflineRendererEnum aAllowOfflineRenderer);
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// aWidth and aHeight are in "display pixels". Multiply by
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// aContentsScaleFactor to get device pixels.
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nsresult Render(int aWidth, int aHeight, double aContentsScaleFactor,
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CGImageRef* aOutCAImage);
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bool isInit() { return mCARenderer != nullptr; }
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/*
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* Render the CALayer to an IOSurface. If no IOSurface
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* is attached then an internal pixel buffer will be
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* used.
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*/
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void AttachIOSurface(MacIOSurface* aSurface);
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IOSurfaceID GetIOSurfaceID();
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// aX, aY, aWidth and aHeight are in "display pixels". Multiply by
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// surf->GetContentsScaleFactor() to get device pixels.
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static nsresult DrawSurfaceToCGContext(CGContextRef aContext,
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MacIOSurface* surf,
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CGColorSpaceRef aColorSpace, int aX,
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int aY, size_t aWidth, size_t aHeight);
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// Remove & Add the layer without destroying
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// the renderer for fast back buffer swapping.
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void DetachCALayer();
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void AttachCALayer(void* aCALayer);
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# ifdef DEBUG
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static void SaveToDisk(MacIOSurface* surf);
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# endif
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private:
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// aWidth and aHeight are in "display pixels". Multiply by
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// mContentsScaleFactor to get device pixels.
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void SetBounds(int aWidth, int aHeight);
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// aWidth and aHeight are in "display pixels". Multiply by
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// mContentsScaleFactor to get device pixels.
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void SetViewport(int aWidth, int aHeight);
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void Destroy();
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void* mCARenderer;
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void* mWrapperCALayer;
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GLuint mFBOTexture;
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_CGLContextObject* mOpenGLContext;
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CGImageRef mCGImage;
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void* mCGData;
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RefPtr<MacIOSurface> mIOSurface;
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uint32_t mFBO;
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uint32_t mIOTexture;
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int mUnsupportedWidth;
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int mUnsupportedHeight;
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AllowOfflineRendererEnum mAllowOfflineRenderer;
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double mContentsScaleFactor;
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};
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#endif // XP_MACOSX
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#endif // nsCoreAnimationSupport_h__
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