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1 /* | 2 /* |
2 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
3 * | 4 * |
4 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 6 * found in the LICENSE file. |
6 */ | 7 */ |
7 | 8 |
| 9 |
8 #ifndef SkBlitter_DEFINED | 10 #ifndef SkBlitter_DEFINED |
9 #define SkBlitter_DEFINED | 11 #define SkBlitter_DEFINED |
10 | 12 |
11 #ifdef SK_SUPPORT_LEGACY_BLITANTIH2V2 | |
12 #define SK_BLITANTIH2V2_VIRTUAL | |
13 #else | |
14 #define SK_BLITANTIH2V2_VIRTUAL virtual | |
15 #endif | |
16 | |
17 #include "SkBitmap.h" | 13 #include "SkBitmap.h" |
18 #include "SkBitmapProcShader.h" | 14 #include "SkBitmapProcShader.h" |
19 #include "SkMask.h" | 15 #include "SkMask.h" |
20 #include "SkMatrix.h" | 16 #include "SkMatrix.h" |
21 #include "SkPaint.h" | 17 #include "SkPaint.h" |
22 #include "SkRefCnt.h" | 18 #include "SkRefCnt.h" |
23 #include "SkRegion.h" | 19 #include "SkRegion.h" |
24 #include "SkShader.h" | 20 #include "SkShader.h" |
25 #include "SkSmallAllocator.h" | 21 #include "SkSmallAllocator.h" |
26 | 22 |
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52 /// Blit a pattern of pixels defined by a rectangle-clipped mask; | 48 /// Blit a pattern of pixels defined by a rectangle-clipped mask; |
53 /// typically used for text. | 49 /// typically used for text. |
54 virtual void blitMask(const SkMask&, const SkIRect& clip); | 50 virtual void blitMask(const SkMask&, const SkIRect& clip); |
55 | 51 |
56 /** If the blitter just sets a single value for each pixel, return the | 52 /** If the blitter just sets a single value for each pixel, return the |
57 bitmap it draws into, and assign value. If not, return NULL and ignore | 53 bitmap it draws into, and assign value. If not, return NULL and ignore |
58 the value parameter. | 54 the value parameter. |
59 */ | 55 */ |
60 virtual const SkBitmap* justAnOpaqueColor(uint32_t* value); | 56 virtual const SkBitmap* justAnOpaqueColor(uint32_t* value); |
61 | 57 |
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 | |
91 /** | 58 /** |
92 * Special method just to identify the null blitter, which is returned | 59 * Special method just to identify the null blitter, which is returned |
93 * from Choose() if the request cannot be fulfilled. Default impl | 60 * from Choose() if the request cannot be fulfilled. Default impl |
94 * returns false. | 61 * returns false. |
95 */ | 62 */ |
96 virtual bool isNullBlitter() const; | 63 virtual bool isNullBlitter() const; |
97 | 64 |
98 /** | 65 /** |
99 * Special methods for SkShaderBlitter. On all other classes this is a no-o
p. | 66 * Special methods for SkShaderBlitter. On all other classes this is a no-o
p. |
100 */ | 67 */ |
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241 SkBlitter* apply(SkBlitter* blitter, const SkRegion* clip, | 208 SkBlitter* apply(SkBlitter* blitter, const SkRegion* clip, |
242 const SkIRect* bounds = NULL); | 209 const SkIRect* bounds = NULL); |
243 | 210 |
244 private: | 211 private: |
245 SkNullBlitter fNullBlitter; | 212 SkNullBlitter fNullBlitter; |
246 SkRectClipBlitter fRectBlitter; | 213 SkRectClipBlitter fRectBlitter; |
247 SkRgnClipBlitter fRgnBlitter; | 214 SkRgnClipBlitter fRgnBlitter; |
248 }; | 215 }; |
249 | 216 |
250 #endif | 217 #endif |
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