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gfx/skia/trunk/src/image/SkSurface.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/image/SkSurface.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0	1	/*
michael@0	2	* Copyright 2012 Google Inc.
michael@0	3	*
michael@0	4	* Use of this source code is governed by a BSD-style license that can be
michael@0	5	* found in the LICENSE file.
michael@0	6	*/
michael@0	7
michael@0	8	#include "SkSurface_Base.h"
michael@0	9	#include "SkImagePriv.h"
michael@0	10	#include "SkCanvas.h"
michael@0	11
michael@0	12	///////////////////////////////////////////////////////////////////////////////
michael@0	13
michael@0	14	SkSurface_Base::SkSurface_Base(int width, int height) : INHERITED(width, height) {
michael@0	15	fCachedCanvas = NULL;
michael@0	16	fCachedImage = NULL;
michael@0	17	}
michael@0	18
michael@0	19	SkSurface_Base::SkSurface_Base(const SkImageInfo& info) : INHERITED(info) {
michael@0	20	fCachedCanvas = NULL;
michael@0	21	fCachedImage = NULL;
michael@0	22	}
michael@0	23
michael@0	24	SkSurface_Base::~SkSurface_Base() {
michael@0	25	// in case the canvas outsurvives us, we null the callback
michael@0	26	if (fCachedCanvas) {
michael@0	27	fCachedCanvas->setSurfaceBase(NULL);
michael@0	28	}
michael@0	29
michael@0	30	SkSafeUnref(fCachedImage);
michael@0	31	SkSafeUnref(fCachedCanvas);
michael@0	32	}
michael@0	33
michael@0	34	void SkSurface_Base::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
michael@0	35	const SkPaint* paint) {
michael@0	36	SkImage* image = this->newImageSnapshot();
michael@0	37	if (image) {
michael@0	38	image->draw(canvas, x, y, paint);
michael@0	39	image->unref();
michael@0	40	}
michael@0	41	}
michael@0	42
michael@0	43	void SkSurface_Base::aboutToDraw(ContentChangeMode mode) {
michael@0	44	this->dirtyGenerationID();
michael@0	45
michael@0	46	if (NULL != fCachedCanvas) {
michael@0	47	SkASSERT(fCachedCanvas->getSurfaceBase() == this || \
michael@0	48	NULL == fCachedCanvas->getSurfaceBase());
michael@0	49	fCachedCanvas->setSurfaceBase(NULL);
michael@0	50	}
michael@0	51
michael@0	52	if (NULL != fCachedImage) {
michael@0	53	// the surface may need to fork its backend, if its sharing it with
michael@0	54	// the cached image. Note: we only call if there is an outstanding owner
michael@0	55	// on the image (besides us).
michael@0	56	if (!fCachedImage->unique()) {
michael@0	57	this->onCopyOnWrite(mode);
michael@0	58	}
michael@0	59
michael@0	60	// regardless of copy-on-write, we must drop our cached image now, so
michael@0	61	// that the next request will get our new contents.
michael@0	62	fCachedImage->unref();
michael@0	63	fCachedImage = NULL;
michael@0	64	}
michael@0	65	}
michael@0	66
michael@0	67	uint32_t SkSurface_Base::newGenerationID() {
michael@0	68	this->installIntoCanvasForDirtyNotification();
michael@0	69
michael@0	70	static int32_t gID;
michael@0	71	return sk_atomic_inc(&gID) + 1;
michael@0	72	}
michael@0	73
michael@0	74	static SkSurface_Base* asSB(SkSurface* surface) {
michael@0	75	return static_cast<SkSurface_Base*>(surface);
michael@0	76	}
michael@0	77
michael@0	78	///////////////////////////////////////////////////////////////////////////////
michael@0	79
michael@0	80	SkSurface::SkSurface(int width, int height) : fWidth(width), fHeight(height) {
michael@0	81	SkASSERT(fWidth >= 0);
michael@0	82	SkASSERT(fHeight >= 0);
michael@0	83	fGenerationID = 0;
michael@0	84	}
michael@0	85
michael@0	86	SkSurface::SkSurface(const SkImageInfo& info)
michael@0	87	: fWidth(info.fWidth)
michael@0	88	, fHeight(info.fHeight)
michael@0	89	{
michael@0	90	SkASSERT(fWidth >= 0);
michael@0	91	SkASSERT(fHeight >= 0);
michael@0	92	fGenerationID = 0;
michael@0	93	}
michael@0	94
michael@0	95	uint32_t SkSurface::generationID() {
michael@0	96	if (0 == fGenerationID) {
michael@0	97	fGenerationID = asSB(this)->newGenerationID();
michael@0	98	}
michael@0	99	return fGenerationID;
michael@0	100	}
michael@0	101
michael@0	102	void SkSurface::notifyContentWillChange(ContentChangeMode mode) {
michael@0	103	asSB(this)->aboutToDraw(mode);
michael@0	104	}
michael@0	105
michael@0	106	SkCanvas* SkSurface::getCanvas() {
michael@0	107	return asSB(this)->getCachedCanvas();
michael@0	108	}
michael@0	109
michael@0	110	SkImage* SkSurface::newImageSnapshot() {
michael@0	111	SkImage* image = asSB(this)->getCachedImage();
michael@0	112	SkSafeRef(image); // the caller will call unref() to balance this
michael@0	113	return image;
michael@0	114	}
michael@0	115
michael@0	116	SkSurface* SkSurface::newSurface(const SkImageInfo& info) {
michael@0	117	return asSB(this)->onNewSurface(info);
michael@0	118	}
michael@0	119
michael@0	120	void SkSurface::draw(SkCanvas* canvas, SkScalar x, SkScalar y,
michael@0	121	const SkPaint* paint) {
michael@0	122	return asSB(this)->onDraw(canvas, x, y, paint);
michael@0	123	}
michael@0	124
michael@0	125	const void* SkSurface::peekPixels(SkImageInfo* info, size_t* rowBytes) {
michael@0	126	return this->getCanvas()->peekPixels(info, rowBytes);
michael@0	127	}