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| 1 #include "sk_tool_utils.h" |
| 2 |
| 3 namespace sk_tool_utils { |
| 4 |
| 5 void config8888_to_imagetypes(SkCanvas::Config8888 config, SkColorType* ct, SkAl
phaType* at) { |
| 6 switch (config) { |
| 7 case SkCanvas::kNative_Premul_Config8888: |
| 8 *ct = kPMColor_SkColorType; |
| 9 *at = kPremul_SkAlphaType; |
| 10 break; |
| 11 case SkCanvas::kNative_Unpremul_Config8888: |
| 12 *ct = kPMColor_SkColorType; |
| 13 *at = kUnpremul_SkAlphaType; |
| 14 break; |
| 15 case SkCanvas::kBGRA_Premul_Config8888: |
| 16 *ct = kBGRA_8888_SkColorType; |
| 17 *at = kPremul_SkAlphaType; |
| 18 break; |
| 19 case SkCanvas::kBGRA_Unpremul_Config8888: |
| 20 *ct = kBGRA_8888_SkColorType; |
| 21 *at = kUnpremul_SkAlphaType; |
| 22 break; |
| 23 case SkCanvas::kRGBA_Premul_Config8888: |
| 24 *ct = kRGBA_8888_SkColorType; |
| 25 *at = kPremul_SkAlphaType; |
| 26 break; |
| 27 case SkCanvas::kRGBA_Unpremul_Config8888: |
| 28 *ct = kRGBA_8888_SkColorType; |
| 29 *at = kUnpremul_SkAlphaType; |
| 30 break; |
| 31 default: |
| 32 SkASSERT(0); |
| 33 } |
| 34 } |
| 35 |
| 36 void write_pixels(SkCanvas* canvas, const SkBitmap& bitmap, int x, int y, |
| 37 SkColorType colorType, SkAlphaType alphaType) { |
| 38 SkBitmap tmp(bitmap); |
| 39 tmp.lockPixels(); |
| 40 |
| 41 SkImageInfo info = tmp.info(); |
| 42 info.fColorType = colorType; |
| 43 info.fAlphaType = alphaType; |
| 44 |
| 45 canvas->writePixels(info, tmp.getPixels(), tmp.rowBytes(), x, y); |
| 46 } |
| 47 |
| 48 } |
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