gfx/skia/trunk/src/core/SkDevice.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 2011 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 "SkDevice.h"
michael@0 9 #include "SkMetaData.h"
michael@0 10
michael@0 11 #if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
michael@0 12 const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias = SkCanvas::kBGRA_Premul_Config8888;
michael@0 13 #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
michael@0 14 const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias = SkCanvas::kRGBA_Premul_Config8888;
michael@0 15 #else
michael@0 16 const SkCanvas::Config8888 SkBaseDevice::kPMColorAlias = (SkCanvas::Config8888) -1;
michael@0 17 #endif
michael@0 18
michael@0 19 ///////////////////////////////////////////////////////////////////////////////
michael@0 20
michael@0 21 SkBaseDevice::SkBaseDevice()
michael@0 22 : fLeakyProperties(SkDeviceProperties::MakeDefault())
michael@0 23 #ifdef SK_DEBUG
michael@0 24 , fAttachedToCanvas(false)
michael@0 25 #endif
michael@0 26 {
michael@0 27 fOrigin.setZero();
michael@0 28 fMetaData = NULL;
michael@0 29 }
michael@0 30
michael@0 31 SkBaseDevice::SkBaseDevice(const SkDeviceProperties& deviceProperties)
michael@0 32 : fLeakyProperties(deviceProperties)
michael@0 33 #ifdef SK_DEBUG
michael@0 34 , fAttachedToCanvas(false)
michael@0 35 #endif
michael@0 36 {
michael@0 37 fOrigin.setZero();
michael@0 38 fMetaData = NULL;
michael@0 39 }
michael@0 40
michael@0 41 SkBaseDevice::~SkBaseDevice() {
michael@0 42 delete fMetaData;
michael@0 43 }
michael@0 44
michael@0 45 SkBaseDevice* SkBaseDevice::createCompatibleDevice(const SkImageInfo& info) {
michael@0 46 #ifdef SK_SUPPORT_LEGACY_COMPATIBLEDEVICE_CONFIG
michael@0 47 // We call the old method to support older subclasses.
michael@0 48 // If they have, we return their device, else we use the new impl.
michael@0 49 SkBitmap::Config config = SkColorTypeToBitmapConfig(info.colorType());
michael@0 50 SkBaseDevice* dev = this->onCreateCompatibleDevice(config,
michael@0 51 info.width(),
michael@0 52 info.height(),
michael@0 53 info.isOpaque(),
michael@0 54 kGeneral_Usage);
michael@0 55 if (dev) {
michael@0 56 return dev;
michael@0 57 }
michael@0 58 // fall through to new impl
michael@0 59 #endif
michael@0 60 return this->onCreateDevice(info, kGeneral_Usage);
michael@0 61 }
michael@0 62
michael@0 63 SkBaseDevice* SkBaseDevice::createCompatibleDeviceForSaveLayer(const SkImageInfo& info) {
michael@0 64 #ifdef SK_SUPPORT_LEGACY_COMPATIBLEDEVICE_CONFIG
michael@0 65 // We call the old method to support older subclasses.
michael@0 66 // If they have, we return their device, else we use the new impl.
michael@0 67 SkBitmap::Config config = SkColorTypeToBitmapConfig(info.colorType());
michael@0 68 SkBaseDevice* dev = this->onCreateCompatibleDevice(config,
michael@0 69 info.width(),
michael@0 70 info.height(),
michael@0 71 info.isOpaque(),
michael@0 72 kSaveLayer_Usage);
michael@0 73 if (dev) {
michael@0 74 return dev;
michael@0 75 }
michael@0 76 // fall through to new impl
michael@0 77 #endif
michael@0 78 return this->onCreateDevice(info, kSaveLayer_Usage);
michael@0 79 }
michael@0 80
michael@0 81 #ifdef SK_SUPPORT_LEGACY_COMPATIBLEDEVICE_CONFIG
michael@0 82 SkBaseDevice* SkBaseDevice::createCompatibleDevice(SkBitmap::Config config,
michael@0 83 int width, int height,
michael@0 84 bool isOpaque) {
michael@0 85 SkImageInfo info = SkImageInfo::Make(width, height,
michael@0 86 SkBitmapConfigToColorType(config),
michael@0 87 isOpaque ? kOpaque_SkAlphaType
michael@0 88 : kPremul_SkAlphaType);
michael@0 89 return this->createCompatibleDevice(info);
michael@0 90 }
michael@0 91 #endif
michael@0 92
michael@0 93 SkMetaData& SkBaseDevice::getMetaData() {
michael@0 94 // metadata users are rare, so we lazily allocate it. If that changes we
michael@0 95 // can decide to just make it a field in the device (rather than a ptr)
michael@0 96 if (NULL == fMetaData) {
michael@0 97 fMetaData = new SkMetaData;
michael@0 98 }
michael@0 99 return *fMetaData;
michael@0 100 }
michael@0 101
michael@0 102 // TODO: should make this guy pure-virtual.
michael@0 103 SkImageInfo SkBaseDevice::imageInfo() const {
michael@0 104 return SkImageInfo::MakeUnknown(this->width(), this->height());
michael@0 105 }
michael@0 106
michael@0 107 const SkBitmap& SkBaseDevice::accessBitmap(bool changePixels) {
michael@0 108 const SkBitmap& bitmap = this->onAccessBitmap();
michael@0 109 if (changePixels) {
michael@0 110 bitmap.notifyPixelsChanged();
michael@0 111 }
michael@0 112 return bitmap;
michael@0 113 }
michael@0 114
michael@0 115 bool SkBaseDevice::readPixels(SkBitmap* bitmap, int x, int y,
michael@0 116 SkCanvas::Config8888 config8888) {
michael@0 117 if (SkBitmap::kARGB_8888_Config != bitmap->config() ||
michael@0 118 NULL != bitmap->getTexture()) {
michael@0 119 return false;
michael@0 120 }
michael@0 121
michael@0 122 const SkBitmap& src = this->accessBitmap(false);
michael@0 123
michael@0 124 SkIRect srcRect = SkIRect::MakeXYWH(x, y, bitmap->width(),
michael@0 125 bitmap->height());
michael@0 126 SkIRect devbounds = SkIRect::MakeWH(src.width(), src.height());
michael@0 127 if (!srcRect.intersect(devbounds)) {
michael@0 128 return false;
michael@0 129 }
michael@0 130
michael@0 131 SkBitmap tmp;
michael@0 132 SkBitmap* bmp;
michael@0 133 if (bitmap->isNull()) {
michael@0 134 if (!tmp.allocPixels(SkImageInfo::MakeN32Premul(bitmap->width(),
michael@0 135 bitmap->height()))) {
michael@0 136 return false;
michael@0 137 }
michael@0 138 bmp = &tmp;
michael@0 139 } else {
michael@0 140 bmp = bitmap;
michael@0 141 }
michael@0 142
michael@0 143 SkIRect subrect = srcRect;
michael@0 144 subrect.offset(-x, -y);
michael@0 145 SkBitmap bmpSubset;
michael@0 146 bmp->extractSubset(&bmpSubset, subrect);
michael@0 147
michael@0 148 bool result = this->onReadPixels(bmpSubset,
michael@0 149 srcRect.fLeft,
michael@0 150 srcRect.fTop,
michael@0 151 config8888);
michael@0 152 if (result && bmp == &tmp) {
michael@0 153 tmp.swap(*bitmap);
michael@0 154 }
michael@0 155 return result;
michael@0 156 }
michael@0 157
michael@0 158 SkSurface* SkBaseDevice::newSurface(const SkImageInfo&) { return NULL; }
michael@0 159
michael@0 160 const void* SkBaseDevice::peekPixels(SkImageInfo*, size_t*) { return NULL; }
michael@0 161
michael@0 162 void SkBaseDevice::drawDRRect(const SkDraw& draw, const SkRRect& outer,
michael@0 163 const SkRRect& inner, const SkPaint& paint) {
michael@0 164 SkPath path;
michael@0 165 path.addRRect(outer);
michael@0 166 path.addRRect(inner);
michael@0 167 path.setFillType(SkPath::kEvenOdd_FillType);
michael@0 168
michael@0 169 const SkMatrix* preMatrix = NULL;
michael@0 170 const bool pathIsMutable = true;
michael@0 171 this->drawPath(draw, path, paint, preMatrix, pathIsMutable);
michael@0 172 }
michael@0 173
michael@0 174 bool SkBaseDevice::writePixelsDirect(const SkImageInfo& info, const void* pixels, size_t rowBytes,
michael@0 175 int x, int y) {
michael@0 176 #ifdef SK_DEBUG
michael@0 177 SkASSERT(info.width() > 0 && info.height() > 0);
michael@0 178 SkASSERT(pixels);
michael@0 179 SkASSERT(rowBytes >= info.minRowBytes());
michael@0 180 SkASSERT(x >= 0 && y >= 0);
michael@0 181
michael@0 182 const SkImageInfo& dstInfo = this->imageInfo();
michael@0 183 SkASSERT(x + info.width() <= dstInfo.width());
michael@0 184 SkASSERT(y + info.height() <= dstInfo.height());
michael@0 185 #endif
michael@0 186 return this->onWritePixels(info, pixels, rowBytes, x, y);
michael@0 187 }
michael@0 188
michael@0 189 bool SkBaseDevice::onWritePixels(const SkImageInfo&, const void*, size_t, int, int) {
michael@0 190 return false;
michael@0 191 }
michael@0 192
michael@0 193 bool SkBaseDevice::onReadPixels(const SkBitmap&, int x, int y, SkCanvas::Config8888) {
michael@0 194 return false;
michael@0 195 }
michael@0 196
michael@0 197 void* SkBaseDevice::accessPixels(SkImageInfo* info, size_t* rowBytes) {
michael@0 198 SkImageInfo tmpInfo;
michael@0 199 size_t tmpRowBytes;
michael@0 200 if (NULL == info) {
michael@0 201 info = &tmpInfo;
michael@0 202 }
michael@0 203 if (NULL == rowBytes) {
michael@0 204 rowBytes = &tmpRowBytes;
michael@0 205 }
michael@0 206 return this->onAccessPixels(info, rowBytes);
michael@0 207 }
michael@0 208
michael@0 209 void* SkBaseDevice::onAccessPixels(SkImageInfo* info, size_t* rowBytes) {
michael@0 210 return NULL;
michael@0 211 }
michael@0 212
michael@0 213 #ifdef SK_SUPPORT_LEGACY_WRITEPIXELSCONFIG
michael@0 214 void SkBaseDevice::writePixels(const SkBitmap&, int x, int y, SkCanvas::Config8888) {}
michael@0 215 #endif
michael@0 216
michael@0 217 void SkBaseDevice::EXPERIMENTAL_optimize(SkPicture* picture) {
michael@0 218 // The base class doesn't perform any analysis but derived classes may
michael@0 219 }
michael@0 220
michael@0 221 bool SkBaseDevice::EXPERIMENTAL_drawPicture(const SkPicture& picture) {
michael@0 222 // The base class doesn't perform any accelerated picture rendering
michael@0 223 return false;
michael@0 224 }

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