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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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30 | 30 |
31 @param alpha A global alpha to be applied to all of the src colors | 31 @param alpha A global alpha to be applied to all of the src colors |
32 @param x The x coordinate of the beginning of the scanline | 32 @param x The x coordinate of the beginning of the scanline |
33 @param y THe y coordinate of the scanline | 33 @param y THe y coordinate of the scanline |
34 */ | 34 */ |
35 typedef void (*Proc16)(uint16_t dst[], const SkPMColor src[], int count, | 35 typedef void (*Proc16)(uint16_t dst[], const SkPMColor src[], int count, |
36 U8CPU alpha, int x, int y); | 36 U8CPU alpha, int x, int y); |
37 | 37 |
38 static Proc16 Factory16(unsigned flags); | 38 static Proc16 Factory16(unsigned flags); |
39 | 39 |
40 /** | 40 /** |
41 * Function pointer that blends a single src color onto a scaline of dst co
lors. | 41 * Function pointer that blends a single src color onto a scaline of dst co
lors. |
42 * | 42 * |
43 * The x,y params provide the dithering phase for the start of the scanline | 43 * The x,y params provide the dithering phase for the start of the scanline |
44 */ | 44 */ |
45 typedef void (*ColorProc16)(uint16_t dst[], SkPMColor src, int count, int x,
int y); | 45 typedef void (*ColorProc16)(uint16_t dst[], SkPMColor src, int count, int x,
int y); |
46 | 46 |
47 // Note : we ignore the kGlobalAlpha_Flag setting, but do respect kSrcPixelA
lpha_Flag | 47 // Note : we ignore the kGlobalAlpha_Flag setting, but do respect kSrcPixelA
lpha_Flag |
48 static ColorProc16 ColorFactory16(unsigned flags); | 48 static ColorProc16 ColorFactory16(unsigned flags); |
49 | 49 |
50 ///////////// D32 version | 50 ///////////// D32 version |
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71 | 71 |
72 /** 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 |
73 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 |
74 if they are not, they may not overlap. | 74 if they are not, they may not overlap. |
75 */ | 75 */ |
76 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); |
77 | 77 |
78 //! Public entry-point to return a blit function ptr | 78 //! Public entry-point to return a blit function ptr |
79 static ColorProc ColorProcFactory(); | 79 static ColorProc ColorProcFactory(); |
80 | 80 |
81 /** Function pointer that blends a single color onto a 32-bit rectangle. */ | |
82 typedef void (*ColorRectProc)(SkPMColor dst[], int width, int height, | |
83 size_t rowBytes, SkPMColor color); | |
84 | |
85 /** Blend a single color into a rectangle of D32 pixels. */ | |
86 static void ColorRect32(SkPMColor dst[], int width, int height, | |
87 size_t rowBytes, SkPMColor color); | |
88 | |
89 //! Public entry-point to return a blit function ptr | |
90 static ColorRectProc ColorRectProcFactory(); | |
91 | |
92 /** These static functions are called by the Factory and Factory32 | 81 /** These static functions are called by the Factory and Factory32 |
93 functions, and should return either NULL, or a | 82 functions, and should return either NULL, or a |
94 platform-specific function-ptr to be used in place of the | 83 platform-specific function-ptr to be used in place of the |
95 system default. | 84 system default. |
96 */ | 85 */ |
97 | 86 |
98 static Proc32 PlatformProcs32(unsigned flags); | 87 static Proc32 PlatformProcs32(unsigned flags); |
99 static ColorProc PlatformColorProc(); | 88 static ColorProc PlatformColorProc(); |
100 | 89 |
101 static Proc16 PlatformFactory565(unsigned flags); | 90 static Proc16 PlatformFactory565(unsigned flags); |
102 static ColorProc16 PlatformColorFactory565(unsigned flags); | 91 static ColorProc16 PlatformColorFactory565(unsigned flags); |
103 | 92 |
104 private: | 93 private: |
105 enum { | 94 enum { |
106 kFlags16_Mask = 7, | 95 kFlags16_Mask = 7, |
107 kFlags32_Mask = 3 | 96 kFlags32_Mask = 3 |
108 }; | 97 }; |
109 }; | 98 }; |
110 | 99 |
111 #endif | 100 #endif |
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