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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 | |
72 /** Blend a single color onto a row of S32 pixels, writing the result | 67 /** Blend a single color onto a row of S32 pixels, writing the result |
73 into a row of D32 pixels. src and dst may be the same memory, but | 68 into a row of D32 pixels. src and dst may be the same memory, but |
74 if they are not, they may not overlap. | 69 if they are not, they may not overlap. |
75 */ | 70 */ |
76 static void Color32(SkPMColor dst[], const SkPMColor src[], int count, SkPMC
olor color); | 71 static void Color32(SkPMColor dst[], const SkPMColor src[], int count, SkPMC
olor color); |
77 | 72 |
78 //! Public entry-point to return a blit function ptr | |
79 static ColorProc ColorProcFactory(); | |
80 | |
81 /** These static functions are called by the Factory and Factory32 | 73 /** These static functions are called by the Factory and Factory32 |
82 functions, and should return either NULL, or a | 74 functions, and should return either NULL, or a |
83 platform-specific function-ptr to be used in place of the | 75 platform-specific function-ptr to be used in place of the |
84 system default. | 76 system default. |
85 */ | 77 */ |
86 | 78 |
87 static Proc32 PlatformProcs32(unsigned flags); | 79 static Proc32 PlatformProcs32(unsigned flags); |
88 static ColorProc PlatformColorProc(); | |
89 | 80 |
90 static Proc16 PlatformFactory565(unsigned flags); | 81 static Proc16 PlatformFactory565(unsigned flags); |
91 static ColorProc16 PlatformColorFactory565(unsigned flags); | 82 static ColorProc16 PlatformColorFactory565(unsigned flags); |
92 | 83 |
93 private: | 84 private: |
94 enum { | 85 enum { |
95 kFlags16_Mask = 7, | 86 kFlags16_Mask = 7, |
96 kFlags32_Mask = 3 | 87 kFlags32_Mask = 3 |
97 }; | 88 }; |
98 }; | 89 }; |
99 | 90 |
100 #endif | 91 #endif |
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