The Tor Browser: gfx/skia/trunk/include/core/SkImageInfo.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkImageInfo.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkImageInfo.h

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.

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkImageInfo_DEFINED
 #define SkImageInfo_DEFINED
 #include "SkMath.h"
 #include "SkSize.h"
 class SkWriteBuffer;
 class SkReadBuffer;
 /**
  *  Describes how to interpret the alpha compoent of a pixel.
  */
 enum SkAlphaType {
     /**
      *  All pixels should be treated as opaque, regardless of the value stored
      *  in their alpha field. Used for legacy images that wrote 0 or garbarge
      *  in their alpha field, but intended the RGB to be treated as opaque.
      */
     kIgnore_SkAlphaType,
     /**
      *  All pixels are stored as opaque. This differs slightly from kIgnore in
      *  that kOpaque has correct "opaque" values stored in the pixels, while
      *  kIgnore may not, but in both cases the caller should treat the pixels
      *  as opaque.
      */
     kOpaque_SkAlphaType,
     /**
      *  All pixels have their alpha premultiplied in their color components.
      *  This is the natural format for the rendering target pixels.
      */
     kPremul_SkAlphaType,
     /**
      *  All pixels have their color components stored without any regard to the
      *  alpha. e.g. this is the default configuration for PNG images.
      *
      *  This alpha-type is ONLY supported for input images. Rendering cannot
      *  generate this on output.
      */
     kUnpremul_SkAlphaType,
     kLastEnum_SkAlphaType = kUnpremul_SkAlphaType
 };
 static inline bool SkAlphaTypeIsOpaque(SkAlphaType at) {
     SK_COMPILE_ASSERT(kIgnore_SkAlphaType < kOpaque_SkAlphaType, bad_alphatype_order);
     SK_COMPILE_ASSERT(kPremul_SkAlphaType > kOpaque_SkAlphaType, bad_alphatype_order);
     SK_COMPILE_ASSERT(kUnpremul_SkAlphaType > kOpaque_SkAlphaType, bad_alphatype_order);
     return (unsigned)at <= kOpaque_SkAlphaType;
 }
 static inline bool SkAlphaTypeIsValid(unsigned value) {
     return value <= kLastEnum_SkAlphaType;
 }
 ///////////////////////////////////////////////////////////////////////////////
 /**
  *  Describes how to interpret the components of a pixel.
  */
 enum SkColorType {
     kUnknown_SkColorType,
     kAlpha_8_SkColorType,
     kRGB_565_SkColorType,
     kARGB_4444_SkColorType,
     kRGBA_8888_SkColorType,
     kBGRA_8888_SkColorType,
     kIndex_8_SkColorType,
     kLastEnum_SkColorType = kIndex_8_SkColorType,
 #if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
     kPMColor_SkColorType = kBGRA_8888_SkColorType
 #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)
     kPMColor_SkColorType = kRGBA_8888_SkColorType
 #else
 #error "SK_*32_SHFIT values must correspond to BGRA or RGBA byte order"
 #endif
 };
 static int SkColorTypeBytesPerPixel(SkColorType ct) {
     static const uint8_t gSize[] = {
 ,  // Unknown
 ,  // Alpha_8
 ,  // RGB_565
 ,  // ARGB_4444
 ,  // RGBA_8888
 ,  // BGRA_8888
 ,  // kIndex_8
     };
     SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gSize) == (size_t)(kLastEnum_SkColorType + 1),
                       size_mismatch_with_SkColorType_enum);
     SkASSERT((size_t)ct < SK_ARRAY_COUNT(gSize));
     return gSize[ct];
 }
 static inline size_t SkColorTypeMinRowBytes(SkColorType ct, int width) {
     return width * SkColorTypeBytesPerPixel(ct);
 }
 static inline bool SkColorTypeIsValid(unsigned value) {
     return value <= kLastEnum_SkColorType;
 }
 ///////////////////////////////////////////////////////////////////////////////
 /**
  *  Describe an image's dimensions and pixel type.
  */
 struct SkImageInfo {
     int         fWidth;
     int         fHeight;
     SkColorType fColorType;
     SkAlphaType fAlphaType;
     static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType at) {
         SkImageInfo info = {
             width, height, ct, at
         };
         return info;
     }
     /**
      *  Sets colortype to the native ARGB32 type.
      */
     static SkImageInfo MakeN32(int width, int height, SkAlphaType at) {
         SkImageInfo info = {
             width, height, kPMColor_SkColorType, at
         };
         return info;
     }
     /**
      *  Sets colortype to the native ARGB32 type, and the alphatype to premul.
      */
     static SkImageInfo MakeN32Premul(int width, int height) {
         SkImageInfo info = {
             width, height, kPMColor_SkColorType, kPremul_SkAlphaType
         };
         return info;
     }
     /**
      *  Sets colortype to the native ARGB32 type, and the alphatype to premul.
      */
     static SkImageInfo MakeN32Premul(const SkISize& size) {
         return MakeN32Premul(size.width(), size.height());
     }
     static SkImageInfo MakeA8(int width, int height) {
         SkImageInfo info = {
             width, height, kAlpha_8_SkColorType, kPremul_SkAlphaType
         };
         return info;
     }
     static SkImageInfo MakeUnknown(int width, int height) {
         SkImageInfo info = {
             width, height, kUnknown_SkColorType, kIgnore_SkAlphaType
         };
         return info;
     }
     int width() const { return fWidth; }
     int height() const { return fHeight; }
     SkColorType colorType() const { return fColorType; }
     SkAlphaType alphaType() const { return fAlphaType; }
     bool isEmpty() const { return fWidth <= 0 || fHeight <= 0; }
     bool isOpaque() const {
         return SkAlphaTypeIsOpaque(fAlphaType);
     }
     SkISize dimensions() const { return SkISize::Make(fWidth, fHeight); }
     int bytesPerPixel() const {
         return SkColorTypeBytesPerPixel(fColorType);
     }
     uint64_t minRowBytes64() const {
         return sk_64_mul(fWidth, this->bytesPerPixel());
     }
     size_t minRowBytes() const {
         return (size_t)this->minRowBytes64();
     }
     bool operator==(const SkImageInfo& other) const {
         return 0 == memcmp(this, &other, sizeof(other));
     }
     bool operator!=(const SkImageInfo& other) const {
         return 0 != memcmp(this, &other, sizeof(other));
     }
     void unflatten(SkReadBuffer&);
     void flatten(SkWriteBuffer&) const;
     int64_t getSafeSize64(size_t rowBytes) const {
         if (0 == fHeight) {
             return 0;
         }
         return sk_64_mul(fHeight - 1, rowBytes) + fWidth * this->bytesPerPixel();
     }
     size_t getSafeSize(size_t rowBytes) const {
         return (size_t)this->getSafeSize64(rowBytes);
     }
     bool validRowBytes(size_t rowBytes) const {
         uint64_t rb = sk_64_mul(fWidth, this->bytesPerPixel());
         return rowBytes >= rb;
     }
     SkDEBUGCODE(void validate() const;)
 };
 #endif

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gfx/skia/trunk/include/core/SkImageInfo.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkImageInfo.h