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1 | |
2 /* | 1 /* |
3 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
4 * | 3 * |
5 * 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 |
6 * found in the LICENSE file. | 5 * found in the LICENSE file. |
7 */ | 6 */ |
8 | 7 |
9 | |
10 #ifndef SkBlitter_DEFINED | 8 #ifndef SkBlitter_DEFINED |
11 #define SkBlitter_DEFINED | 9 #define SkBlitter_DEFINED |
12 | 10 |
| 11 #ifdef SK_SUPPORT_LEGACY_BLITANTIH2V2 |
| 12 #define SK_BLITANTIH2V2_VIRTUAL |
| 13 #else |
| 14 #define SK_BLITANTIH2V2_VIRTUAL virtual |
| 15 #endif |
| 16 |
13 #include "SkBitmap.h" | 17 #include "SkBitmap.h" |
14 #include "SkBitmapProcShader.h" | 18 #include "SkBitmapProcShader.h" |
15 #include "SkMask.h" | 19 #include "SkMask.h" |
16 #include "SkMatrix.h" | 20 #include "SkMatrix.h" |
17 #include "SkPaint.h" | 21 #include "SkPaint.h" |
18 #include "SkRefCnt.h" | 22 #include "SkRefCnt.h" |
19 #include "SkRegion.h" | 23 #include "SkRegion.h" |
20 #include "SkShader.h" | 24 #include "SkShader.h" |
21 #include "SkSmallAllocator.h" | 25 #include "SkSmallAllocator.h" |
22 | 26 |
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48 /// Blit a pattern of pixels defined by a rectangle-clipped mask; | 52 /// Blit a pattern of pixels defined by a rectangle-clipped mask; |
49 /// typically used for text. | 53 /// typically used for text. |
50 virtual void blitMask(const SkMask&, const SkIRect& clip); | 54 virtual void blitMask(const SkMask&, const SkIRect& clip); |
51 | 55 |
52 /** If the blitter just sets a single value for each pixel, return the | 56 /** If the blitter just sets a single value for each pixel, return the |
53 bitmap it draws into, and assign value. If not, return NULL and ignore | 57 bitmap it draws into, and assign value. If not, return NULL and ignore |
54 the value parameter. | 58 the value parameter. |
55 */ | 59 */ |
56 virtual const SkBitmap* justAnOpaqueColor(uint32_t* value); | 60 virtual const SkBitmap* justAnOpaqueColor(uint32_t* value); |
57 | 61 |
| 62 // (x, y), (x + 1, y) |
| 63 SK_BLITANTIH2V2_VIRTUAL void blitAntiH2(int x, int y, U8CPU a0, U8CPU a1) { |
| 64 int16_t runs[3]; |
| 65 uint8_t aa[2]; |
| 66 |
| 67 runs[0] = 1; |
| 68 runs[1] = 1; |
| 69 runs[2] = 0; |
| 70 aa[0] = SkToU8(a0); |
| 71 aa[1] = SkToU8(a1); |
| 72 this->blitAntiH(x, y, aa, runs); |
| 73 } |
| 74 |
| 75 // (x, y), (x, y + 1) |
| 76 SK_BLITANTIH2V2_VIRTUAL void blitAntiV2(int x, int y, U8CPU a0, U8CPU a1) { |
| 77 int16_t runs[2]; |
| 78 uint8_t aa[1]; |
| 79 |
| 80 runs[0] = 1; |
| 81 runs[1] = 0; |
| 82 aa[0] = SkToU8(a0); |
| 83 this->blitAntiH(x, y, aa, runs); |
| 84 // reset in case the clipping blitter modified runs |
| 85 runs[0] = 1; |
| 86 runs[1] = 0; |
| 87 aa[0] = SkToU8(a1); |
| 88 this->blitAntiH(x, y + 1, aa, runs); |
| 89 } |
| 90 |
58 /** | 91 /** |
59 * Special method just to identify the null blitter, which is returned | 92 * Special method just to identify the null blitter, which is returned |
60 * from Choose() if the request cannot be fulfilled. Default impl | 93 * from Choose() if the request cannot be fulfilled. Default impl |
61 * returns false. | 94 * returns false. |
62 */ | 95 */ |
63 virtual bool isNullBlitter() const; | 96 virtual bool isNullBlitter() const; |
64 | 97 |
65 /** | 98 /** |
66 * Special methods for SkShaderBlitter. On all other classes this is a no-o
p. | 99 * Special methods for SkShaderBlitter. On all other classes this is a no-o
p. |
67 */ | 100 */ |
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208 SkBlitter* apply(SkBlitter* blitter, const SkRegion* clip, | 241 SkBlitter* apply(SkBlitter* blitter, const SkRegion* clip, |
209 const SkIRect* bounds = NULL); | 242 const SkIRect* bounds = NULL); |
210 | 243 |
211 private: | 244 private: |
212 SkNullBlitter fNullBlitter; | 245 SkNullBlitter fNullBlitter; |
213 SkRectClipBlitter fRectBlitter; | 246 SkRectClipBlitter fRectBlitter; |
214 SkRgnClipBlitter fRgnBlitter; | 247 SkRgnClipBlitter fRgnBlitter; |
215 }; | 248 }; |
216 | 249 |
217 #endif | 250 #endif |
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