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gfx/2d/MacIOSurface.h@97036ab72558 (annotated)

gfx/2d/MacIOSurface.h

Tue, 06 Jan 2015 21:39:09 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Tue, 06 Jan 2015 21:39:09 +0100

branch

TOR_BUG_9701

changeset 8

97036ab72558

permissions

-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	// vim:set ts=2 sts=2 sw=2 et cin:
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#ifndef MacIOSurface_h__
michael@0	8	#define MacIOSurface_h__
michael@0	9	#ifdef XP_MACOSX
michael@0	10	#include <QuartzCore/QuartzCore.h>
michael@0	11	#include <dlfcn.h>
michael@0	12	#include "mozilla/RefPtr.h"
michael@0	13
michael@0	14	typedef CFTypeRef IOSurfacePtr;
michael@0	15	typedef IOSurfacePtr (*IOSurfaceCreateFunc) (CFDictionaryRef properties);
michael@0	16	typedef IOSurfacePtr (*IOSurfaceLookupFunc) (uint32_t io_surface_id);
michael@0	17	typedef IOSurfaceID (*IOSurfaceGetIDFunc) (CFTypeRef io_surface);
michael@0	18	typedef IOReturn (*IOSurfaceLockFunc) (CFTypeRef io_surface,
michael@0	19	uint32_t options,
michael@0	20	uint32_t *seed);
michael@0	21	typedef IOReturn (*IOSurfaceUnlockFunc) (CFTypeRef io_surface,
michael@0	22	uint32_t options,
michael@0	23	uint32_t *seed);
michael@0	24	typedef void* (*IOSurfaceGetBaseAddressFunc) (CFTypeRef io_surface);
michael@0	25	typedef size_t (*IOSurfaceGetWidthFunc) (IOSurfacePtr io_surface);
michael@0	26	typedef size_t (*IOSurfaceGetHeightFunc) (IOSurfacePtr io_surface);
michael@0	27	typedef size_t (*IOSurfaceGetBytesPerRowFunc) (IOSurfacePtr io_surface);
michael@0	28	typedef CGLError (*CGLTexImageIOSurface2DFunc) (CGLContextObj ctxt,
michael@0	29	GLenum target, GLenum internalFormat,
michael@0	30	GLsizei width, GLsizei height,
michael@0	31	GLenum format, GLenum type,
michael@0	32	IOSurfacePtr ioSurface, GLuint plane);
michael@0	33	typedef CGContextRef (*IOSurfaceContextCreateFunc)(CFTypeRef io_surface,
michael@0	34	unsigned width, unsigned height,
michael@0	35	unsigned bitsPerComponent, unsigned bytes,
michael@0	36	CGColorSpaceRef colorSpace, CGBitmapInfo bitmapInfo);
michael@0	37	typedef CGImageRef (*IOSurfaceContextCreateImageFunc)(CGContextRef ref);
michael@0	38	typedef IOSurfacePtr (*IOSurfaceContextGetSurfaceFunc)(CGContextRef ref);
michael@0	39
michael@0	40
michael@0	41
michael@0	42	#import <OpenGL/OpenGL.h>
michael@0	43	#include "2D.h"
michael@0	44	#include "mozilla/RefPtr.h"
michael@0	45
michael@0	46	struct _CGLContextObject;
michael@0	47
michael@0	48	typedef _CGLContextObject* CGLContextObj;
michael@0	49	typedef struct CGContext* CGContextRef;
michael@0	50	typedef struct CGImage* CGImageRef;
michael@0	51	typedef uint32_t IOSurfaceID;
michael@0	52
michael@0	53	enum CGContextType {
michael@0	54	CG_CONTEXT_TYPE_UNKNOWN = 0,
michael@0	55	// These are found by inspection, it's possible they could be changed
michael@0	56	CG_CONTEXT_TYPE_BITMAP = 4,
michael@0	57	CG_CONTEXT_TYPE_IOSURFACE = 8
michael@0	58	};
michael@0	59
michael@0	60	CGContextType GetContextType(CGContextRef ref);
michael@0	61
michael@0	62	class MacIOSurface : public mozilla::RefCounted<MacIOSurface> {
michael@0	63	public:
michael@0	64	MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(MacIOSurface)
michael@0	65	typedef mozilla::gfx::SourceSurface SourceSurface;
michael@0	66
michael@0	67	static mozilla::TemporaryRef<MacIOSurface> CreateIOSurface(int aWidth, int aHeight,
michael@0	68	double aContentsScaleFactor = 1.0,
michael@0	69	bool aHasAlpha = true);
michael@0	70	static void ReleaseIOSurface(MacIOSurface *aIOSurface);
michael@0	71	static mozilla::TemporaryRef<MacIOSurface> LookupSurface(IOSurfaceID aSurfaceID,
michael@0	72	double aContentsScaleFactor = 1.0,
michael@0	73	bool aHasAlpha = true);
michael@0	74
michael@0	75	MacIOSurface(const void *aIOSurfacePtr, double aContentsScaleFactor = 1.0, bool aHasAlpha = true)
michael@0	76	: mIOSurfacePtr(aIOSurfacePtr), mContentsScaleFactor(aContentsScaleFactor), mHasAlpha(aHasAlpha) {}
michael@0	77	virtual ~MacIOSurface();
michael@0	78	IOSurfaceID GetIOSurfaceID();
michael@0	79	void *GetBaseAddress();
michael@0	80	// GetWidth() and GetHeight() return values in "display pixels". A
michael@0	81	// "display pixel" is the smallest fully addressable part of a display.
michael@0	82	// But in HiDPI modes each "display pixel" corresponds to more than one
michael@0	83	// device pixel. Use GetDevicePixel**() to get device pixels.
michael@0	84	size_t GetWidth();
michael@0	85	size_t GetHeight();
michael@0	86	double GetContentsScaleFactor() { return mContentsScaleFactor; }
michael@0	87	size_t GetDevicePixelWidth();
michael@0	88	size_t GetDevicePixelHeight();
michael@0	89	size_t GetBytesPerRow();
michael@0	90	void Lock();
michael@0	91	void Unlock();
michael@0	92	bool HasAlpha() { return mHasAlpha; }
michael@0	93	// We would like to forward declare NSOpenGLContext, but it is an @interface
michael@0	94	// and this file is also used from c++, so we use a void *.
michael@0	95	CGLError CGLTexImageIOSurface2D(CGLContextObj ctxt);
michael@0	96	mozilla::TemporaryRef<SourceSurface> GetAsSurface();
michael@0	97	CGContextRef CreateIOSurfaceContext();
michael@0	98
michael@0	99	// FIXME This doesn't really belong here
michael@0	100	static CGImageRef CreateImageFromIOSurfaceContext(CGContextRef aContext);
michael@0	101	static mozilla::TemporaryRef<MacIOSurface> IOSurfaceContextGetSurface(CGContextRef aContext,
michael@0	102	double aContentsScaleFactor = 1.0,
michael@0	103	bool aHasAlpha = true);
michael@0	104
michael@0	105	private:
michael@0	106	friend class nsCARenderer;
michael@0	107	const void* mIOSurfacePtr;
michael@0	108	double mContentsScaleFactor;
michael@0	109	bool mHasAlpha;
michael@0	110	};
michael@0	111
michael@0	112	class MacIOSurfaceLib: public MacIOSurface {
michael@0	113	public:
michael@0	114	MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(MacIOSurfaceLib)
michael@0	115	static void *sIOSurfaceFramework;
michael@0	116	static void *sOpenGLFramework;
michael@0	117	static void *sCoreGraphicsFramework;
michael@0	118	static bool isLoaded;
michael@0	119	static IOSurfaceCreateFunc sCreate;
michael@0	120	static IOSurfaceGetIDFunc sGetID;
michael@0	121	static IOSurfaceLookupFunc sLookup;
michael@0	122	static IOSurfaceGetBaseAddressFunc sGetBaseAddress;
michael@0	123	static IOSurfaceLockFunc sLock;
michael@0	124	static IOSurfaceUnlockFunc sUnlock;
michael@0	125	static IOSurfaceGetWidthFunc sWidth;
michael@0	126	static IOSurfaceGetHeightFunc sHeight;
michael@0	127	static IOSurfaceGetBytesPerRowFunc sBytesPerRow;
michael@0	128	static CGLTexImageIOSurface2DFunc sTexImage;
michael@0	129	static IOSurfaceContextCreateFunc sIOSurfaceContextCreate;
michael@0	130	static IOSurfaceContextCreateImageFunc sIOSurfaceContextCreateImage;
michael@0	131	static IOSurfaceContextGetSurfaceFunc sIOSurfaceContextGetSurface;
michael@0	132	static CFStringRef kPropWidth;
michael@0	133	static CFStringRef kPropHeight;
michael@0	134	static CFStringRef kPropBytesPerElem;
michael@0	135	static CFStringRef kPropBytesPerRow;
michael@0	136	static CFStringRef kPropIsGlobal;
michael@0	137
michael@0	138	static bool isInit();
michael@0	139	static CFStringRef GetIOConst(const char* symbole);
michael@0	140	static IOSurfacePtr IOSurfaceCreate(CFDictionaryRef properties);
michael@0	141	static IOSurfacePtr IOSurfaceLookup(IOSurfaceID aIOSurfaceID);
michael@0	142	static IOSurfaceID IOSurfaceGetID(IOSurfacePtr aIOSurfacePtr);
michael@0	143	static void *IOSurfaceGetBaseAddress(IOSurfacePtr aIOSurfacePtr);
michael@0	144	static size_t IOSurfaceGetWidth(IOSurfacePtr aIOSurfacePtr);
michael@0	145	static size_t IOSurfaceGetHeight(IOSurfacePtr aIOSurfacePtr);
michael@0	146	static size_t IOSurfaceGetBytesPerRow(IOSurfacePtr aIOSurfacePtr);
michael@0	147	static IOReturn IOSurfaceLock(IOSurfacePtr aIOSurfacePtr,
michael@0	148	uint32_t options, uint32_t *seed);
michael@0	149	static IOReturn IOSurfaceUnlock(IOSurfacePtr aIOSurfacePtr,
michael@0	150	uint32_t options, uint32_t *seed);
michael@0	151	static CGLError CGLTexImageIOSurface2D(CGLContextObj ctxt,
michael@0	152	GLenum target, GLenum internalFormat,
michael@0	153	GLsizei width, GLsizei height,
michael@0	154	GLenum format, GLenum type,
michael@0	155	IOSurfacePtr ioSurface, GLuint plane);
michael@0	156	static CGContextRef IOSurfaceContextCreate(IOSurfacePtr aIOSurfacePtr,
michael@0	157	unsigned aWidth, unsigned aHeight,
michael@0	158	unsigned aBitsPerCompoent, unsigned aBytes,
michael@0	159	CGColorSpaceRef aColorSpace, CGBitmapInfo bitmapInfo);
michael@0	160	static CGImageRef IOSurfaceContextCreateImage(CGContextRef ref);
michael@0	161	static IOSurfacePtr IOSurfaceContextGetSurface(CGContextRef ref);
michael@0	162	static unsigned int (*sCGContextGetTypePtr) (CGContextRef);
michael@0	163	static void LoadLibrary();
michael@0	164	static void CloseLibrary();
michael@0	165
michael@0	166	// Static deconstructor
michael@0	167	static class LibraryUnloader {
michael@0	168	public:
michael@0	169	~LibraryUnloader() {
michael@0	170	CloseLibrary();
michael@0	171	}
michael@0	172	} sLibraryUnloader;
michael@0	173	};
michael@0	174
michael@0	175	#endif
michael@0	176	#endif