Chromium Code Reviews| OLD | NEW |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #ifndef SkBitmap_DEFINED | 8 #ifndef SkBitmap_DEFINED |
| 9 #define SkBitmap_DEFINED | 9 #define SkBitmap_DEFINED |
| 10 | 10 |
| 11 #include "SkColor.h" | 11 #include "SkColor.h" |
| 12 #include "SkColorTable.h" | 12 #include "SkColorTable.h" |
| 13 #include "SkImageInfo.h" | 13 #include "SkImageInfo.h" |
| 14 #include "SkPoint.h" | 14 #include "SkPoint.h" |
| 15 #include "SkRefCnt.h" | 15 #include "SkRefCnt.h" |
| 16 | 16 |
| 17 struct SkMask; | 17 struct SkMask; |
| 18 struct SkIRect; | 18 struct SkIRect; |
| 19 struct SkRect; | 19 struct SkRect; |
| 20 class SkPaint; | 20 class SkPaint; |
| 21 class SkPixelRef; | 21 class SkPixelRef; |
| 22 class SkPixelRefFactory; | 22 class SkPixelRefFactory; |
| 23 class SkRegion; | 23 class SkRegion; |
| 24 class SkString; | 24 class SkString; |
| 25 class GrTexture; | 25 class GrTexture; |
| 26 | 26 |
| 27 //#define SK_SUPPORT_LEGACY_BITMAPFLATTEN | |
| 28 | |
| 27 /** \class SkBitmap | 29 /** \class SkBitmap |
| 28 | 30 |
| 29 The SkBitmap class specifies a raster bitmap. A bitmap has an integer width | 31 The SkBitmap class specifies a raster bitmap. A bitmap has an integer width |
| 30 and height, and a format (config), and a pointer to the actual pixels. | 32 and height, and a format (config), and a pointer to the actual pixels. |
| 31 Bitmaps can be drawn into a SkCanvas, but they are also used to specify the | 33 Bitmaps can be drawn into a SkCanvas, but they are also used to specify the |
| 32 target of a SkCanvas' drawing operations. | 34 target of a SkCanvas' drawing operations. |
| 33 A const SkBitmap exposes getAddr(), which lets a caller write its pixels; | 35 A const SkBitmap exposes getAddr(), which lets a caller write its pixels; |
| 34 the constness is considered to apply to the bitmap's configuration, not | 36 the constness is considered to apply to the bitmap's configuration, not |
| 35 its contents. | 37 its contents. |
| 36 */ | 38 */ |
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| 691 bool extractAlpha(SkBitmap* dst, const SkPaint* paint, Allocator* allocator, | 693 bool extractAlpha(SkBitmap* dst, const SkPaint* paint, Allocator* allocator, |
| 692 SkIPoint* offset) const; | 694 SkIPoint* offset) const; |
| 693 | 695 |
| 694 /** The following two functions provide the means to both flatten and | 696 /** The following two functions provide the means to both flatten and |
| 695 unflatten the bitmap AND its pixels into the provided buffer. | 697 unflatten the bitmap AND its pixels into the provided buffer. |
| 696 It is recommended that you do not call these functions directly, | 698 It is recommended that you do not call these functions directly, |
| 697 but instead call the write/readBitmap functions on the respective | 699 but instead call the write/readBitmap functions on the respective |
| 698 buffers as they can optimize the recording process and avoid recording | 700 buffers as they can optimize the recording process and avoid recording |
| 699 duplicate bitmaps and pixelRefs. | 701 duplicate bitmaps and pixelRefs. |
| 700 */ | 702 */ |
| 703 #ifdef SK_SUPPORT_LEGACY_BITMAPFLATTEN | |
|
scroggo
2014/05/20 13:27:50
Could you move these before the comment, so the co
reed1
2014/05/20 17:49:58
Done.
| |
| 704 public: | |
| 705 #else | |
| 706 private: | |
| 707 #endif | |
| 701 void flatten(SkWriteBuffer&) const; | 708 void flatten(SkWriteBuffer&) const; |
|
scroggo
2014/05/20 13:27:50
Can't we remove this entirely when SK_SUPPORT_LEGA
reed1
2014/05/20 17:49:58
Done.
| |
| 702 void unflatten(SkReadBuffer&); | 709 void unflatten(SkReadBuffer&); |
| 710 public: | |
| 703 | 711 |
| 704 SkDEBUGCODE(void validate() const;) | 712 SkDEBUGCODE(void validate() const;) |
| 705 | 713 |
| 706 class Allocator : public SkRefCnt { | 714 class Allocator : public SkRefCnt { |
| 707 public: | 715 public: |
| 708 SK_DECLARE_INST_COUNT(Allocator) | 716 SK_DECLARE_INST_COUNT(Allocator) |
| 709 | 717 |
| 710 /** Allocate the pixel memory for the bitmap, given its dimensions and | 718 /** Allocate the pixel memory for the bitmap, given its dimensions and |
| 711 config. Return true on success, where success means either setPixels | 719 config. Return true on success, where success means either setPixels |
| 712 or setPixelRef was called. The pixels need not be locked when this | 720 or setPixelRef was called. The pixels need not be locked when this |
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| 790 static size_t ComputeSafeSize(Config config, | 798 static size_t ComputeSafeSize(Config config, |
| 791 uint32_t width, | 799 uint32_t width, |
| 792 uint32_t height, | 800 uint32_t height, |
| 793 size_t rowBytes); | 801 size_t rowBytes); |
| 794 | 802 |
| 795 /* Unreference any pixelrefs or colortables | 803 /* Unreference any pixelrefs or colortables |
| 796 */ | 804 */ |
| 797 void freePixels(); | 805 void freePixels(); |
| 798 void updatePixelsFromRef() const; | 806 void updatePixelsFromRef() const; |
| 799 | 807 |
| 808 friend class SkBitmapSource; // unflatten | |
| 809 friend class SkReadBuffer; // unflatten | |
| 800 friend struct SkBitmapProcState; | 810 friend struct SkBitmapProcState; |
| 801 }; | 811 }; |
| 802 | 812 |
| 803 class SkAutoLockPixels : SkNoncopyable { | 813 class SkAutoLockPixels : SkNoncopyable { |
| 804 public: | 814 public: |
| 805 SkAutoLockPixels(const SkBitmap& bm, bool doLock = true) : fBitmap(bm) { | 815 SkAutoLockPixels(const SkBitmap& bm, bool doLock = true) : fBitmap(bm) { |
| 806 fDidLock = doLock; | 816 fDidLock = doLock; |
| 807 if (doLock) { | 817 if (doLock) { |
| 808 bm.lockPixels(); | 818 bm.lockPixels(); |
| 809 } | 819 } |
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| 907 } | 917 } |
| 908 | 918 |
| 909 /////////////////////////////////////////////////////////////////////////////// | 919 /////////////////////////////////////////////////////////////////////////////// |
| 910 // | 920 // |
| 911 // Helpers until we can fully deprecate SkBitmap::Config | 921 // Helpers until we can fully deprecate SkBitmap::Config |
| 912 // | 922 // |
| 913 extern SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType); | 923 extern SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType); |
| 914 extern SkColorType SkBitmapConfigToColorType(SkBitmap::Config); | 924 extern SkColorType SkBitmapConfigToColorType(SkBitmap::Config); |
| 915 | 925 |
| 916 #endif | 926 #endif |
| OLD | NEW |