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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
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 SkBlitRow_DEFINED | 8 #ifndef SkBlitRow_DEFINED |
9 #define SkBlitRow_DEFINED | 9 #define SkBlitRow_DEFINED |
10 | 10 |
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57 /** Function pointer that blends 32bit colors onto a 32bit destination. | 57 /** Function pointer that blends 32bit colors onto a 32bit destination. |
58 @param dst array of dst 32bit colors | 58 @param dst array of dst 32bit colors |
59 @param src array of src 32bit colors (w/ or w/o alpha) | 59 @param src array of src 32bit colors (w/ or w/o alpha) |
60 @param count number of colors to blend | 60 @param count number of colors to blend |
61 @param alpha global alpha to be applied to all src colors | 61 @param alpha global alpha to be applied to all src colors |
62 */ | 62 */ |
63 typedef void (*Proc32)(uint32_t dst[], const SkPMColor src[], int count, U8C
PU alpha); | 63 typedef void (*Proc32)(uint32_t dst[], const SkPMColor src[], int count, U8C
PU alpha); |
64 | 64 |
65 static Proc32 Factory32(unsigned flags32); | 65 static Proc32 Factory32(unsigned flags32); |
66 | 66 |
| 67 /** Function pointer that blends a single color with a row of 32-bit colors |
| 68 onto a 32-bit destination |
| 69 */ |
| 70 typedef void (*ColorProc)(SkPMColor dst[], const SkPMColor src[], int count,
SkPMColor color); |
| 71 |
67 /** Blend a single color onto a row of S32 pixels, writing the result | 72 /** Blend a single color onto a row of S32 pixels, writing the result |
68 into a row of D32 pixels. src and dst may be the same memory, but | 73 into a row of D32 pixels. src and dst may be the same memory, but |
69 if they are not, they may not overlap. | 74 if they are not, they may not overlap. |
70 */ | 75 */ |
71 static void Color32(SkPMColor dst[], const SkPMColor src[], int count, SkPMC
olor color); | 76 static void Color32(SkPMColor dst[], const SkPMColor src[], int count, SkPMC
olor color); |
72 | 77 |
| 78 //! Public entry-point to return a blit function ptr |
| 79 static ColorProc ColorProcFactory(); |
| 80 |
73 /** These static functions are called by the Factory and Factory32 | 81 /** These static functions are called by the Factory and Factory32 |
74 functions, and should return either NULL, or a | 82 functions, and should return either NULL, or a |
75 platform-specific function-ptr to be used in place of the | 83 platform-specific function-ptr to be used in place of the |
76 system default. | 84 system default. |
77 */ | 85 */ |
78 | 86 |
79 static Proc32 PlatformProcs32(unsigned flags); | 87 static Proc32 PlatformProcs32(unsigned flags); |
| 88 static ColorProc PlatformColorProc(); |
80 | 89 |
81 static Proc16 PlatformFactory565(unsigned flags); | 90 static Proc16 PlatformFactory565(unsigned flags); |
82 static ColorProc16 PlatformColorFactory565(unsigned flags); | 91 static ColorProc16 PlatformColorFactory565(unsigned flags); |
83 | 92 |
84 private: | 93 private: |
85 enum { | 94 enum { |
86 kFlags16_Mask = 7, | 95 kFlags16_Mask = 7, |
87 kFlags32_Mask = 3 | 96 kFlags32_Mask = 3 |
88 }; | 97 }; |
89 }; | 98 }; |
90 | 99 |
91 #endif | 100 #endif |
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