gfx/skia/trunk/include/core/SkBlitRow.h@129ffea94266 (annotated)
gfx/skia/trunk/include/core/SkBlitRow.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.
| 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 | #ifndef SkBlitRow_DEFINED |
| michael@0 | 9 | #define SkBlitRow_DEFINED |
| michael@0 | 10 | |
| michael@0 | 11 | #include "SkBitmap.h" |
| michael@0 | 12 | #include "SkColor.h" |
| michael@0 | 13 | |
| michael@0 | 14 | class SkBlitRow { |
| michael@0 | 15 | public: |
| michael@0 | 16 | enum Flags16 { |
| michael@0 | 17 | //! If set, the alpha parameter will be != 255 |
| michael@0 | 18 | kGlobalAlpha_Flag = 0x01, |
| michael@0 | 19 | //! If set, the src colors may have alpha != 255 |
| michael@0 | 20 | kSrcPixelAlpha_Flag = 0x02, |
| michael@0 | 21 | //! If set, the resulting 16bit colors should be dithered |
| michael@0 | 22 | kDither_Flag = 0x04 |
| michael@0 | 23 | }; |
| michael@0 | 24 | |
| michael@0 | 25 | /** Function pointer that reads a scanline of src SkPMColors, and writes |
| michael@0 | 26 | a corresponding scanline of 16bit colors (specific format based on the |
| michael@0 | 27 | config passed to the Factory. |
| michael@0 | 28 | |
| michael@0 | 29 | The x,y params are useful just for dithering |
| michael@0 | 30 | |
| michael@0 | 31 | @param alpha A global alpha to be applied to all of the src colors |
| michael@0 | 32 | @param x The x coordinate of the beginning of the scanline |
| michael@0 | 33 | @param y THe y coordinate of the scanline |
| michael@0 | 34 | */ |
| michael@0 | 35 | typedef void (*Proc)(uint16_t* dst, |
| michael@0 | 36 | const SkPMColor* src, |
| michael@0 | 37 | int count, U8CPU alpha, int x, int y); |
| michael@0 | 38 | |
| michael@0 | 39 | static Proc Factory(unsigned flags, SkBitmap::Config); |
| michael@0 | 40 | |
| michael@0 | 41 | ///////////// D32 version |
| michael@0 | 42 | |
| michael@0 | 43 | enum Flags32 { |
| michael@0 | 44 | kGlobalAlpha_Flag32 = 1 << 0, |
| michael@0 | 45 | kSrcPixelAlpha_Flag32 = 1 << 1 |
| michael@0 | 46 | }; |
| michael@0 | 47 | |
| michael@0 | 48 | /** Function pointer that blends 32bit colors onto a 32bit destination. |
| michael@0 | 49 | @param dst array of dst 32bit colors |
| michael@0 | 50 | @param src array of src 32bit colors (w/ or w/o alpha) |
| michael@0 | 51 | @param count number of colors to blend |
| michael@0 | 52 | @param alpha global alpha to be applied to all src colors |
| michael@0 | 53 | */ |
| michael@0 | 54 | typedef void (*Proc32)(uint32_t* dst, |
| michael@0 | 55 | const SkPMColor* src, |
| michael@0 | 56 | int count, U8CPU alpha); |
| michael@0 | 57 | |
| michael@0 | 58 | static Proc32 Factory32(unsigned flags32); |
| michael@0 | 59 | |
| michael@0 | 60 | /** Function pointer that blends a single color with a row of 32-bit colors |
| michael@0 | 61 | onto a 32-bit destination |
| michael@0 | 62 | */ |
| michael@0 | 63 | typedef void (*ColorProc)(SkPMColor* dst, const SkPMColor* src, int count, |
| michael@0 | 64 | SkPMColor color); |
| michael@0 | 65 | |
| michael@0 | 66 | /** Blend a single color onto a row of S32 pixels, writing the result |
| michael@0 | 67 | into a row of D32 pixels. src and dst may be the same memory, but |
| michael@0 | 68 | if they are not, they may not overlap. |
| michael@0 | 69 | */ |
| michael@0 | 70 | static void Color32(SkPMColor dst[], const SkPMColor src[], |
| michael@0 | 71 | int count, SkPMColor color); |
| michael@0 | 72 | |
| michael@0 | 73 | //! Public entry-point to return a blit function ptr |
| michael@0 | 74 | static ColorProc ColorProcFactory(); |
| michael@0 | 75 | |
| michael@0 | 76 | /** Function pointer that blends a single color onto a 32-bit rectangle. */ |
| michael@0 | 77 | typedef void (*ColorRectProc)(SkPMColor* dst, int width, int height, |
| michael@0 | 78 | size_t rowBytes, SkPMColor color); |
| michael@0 | 79 | |
| michael@0 | 80 | /** Blend a single color into a rectangle of D32 pixels. */ |
| michael@0 | 81 | static void ColorRect32(SkPMColor* dst, int width, int height, |
| michael@0 | 82 | size_t rowBytes, SkPMColor color); |
| michael@0 | 83 | |
| michael@0 | 84 | //! Public entry-point to return a blit function ptr |
| michael@0 | 85 | static ColorRectProc ColorRectProcFactory(); |
| michael@0 | 86 | |
| michael@0 | 87 | /** These static functions are called by the Factory and Factory32 |
| michael@0 | 88 | functions, and should return either NULL, or a |
| michael@0 | 89 | platform-specific function-ptr to be used in place of the |
| michael@0 | 90 | system default. |
| michael@0 | 91 | */ |
| michael@0 | 92 | |
| michael@0 | 93 | static Proc32 PlatformProcs32(unsigned flags); |
| michael@0 | 94 | static Proc PlatformProcs565(unsigned flags); |
| michael@0 | 95 | static ColorProc PlatformColorProc(); |
| michael@0 | 96 | |
| michael@0 | 97 | private: |
| michael@0 | 98 | enum { |
| michael@0 | 99 | kFlags16_Mask = 7, |
| michael@0 | 100 | kFlags32_Mask = 3 |
| michael@0 | 101 | }; |
| michael@0 | 102 | }; |
| michael@0 | 103 | |
| michael@0 | 104 | #endif |
