1 /* 2 * Copyright 2012 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "SkImagePriv.h" 9 #include "SkCanvas.h" 10 #include "SkPicture.h" 11 12 #ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG 13 SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType colorType) { 14 switch (colorType) { 15 case kAlpha_8_SkColorType: 16 return SkBitmap::kA8_Config; 17 18 case kARGB_4444_SkColorType: 19 return SkBitmap::kARGB_4444_Config; 20 21 case kRGB_565_SkColorType: 22 return SkBitmap::kRGB_565_Config; 23 24 case kN32_SkColorType: 25 return SkBitmap::kARGB_8888_Config; 26 27 case kIndex_8_SkColorType: 28 return SkBitmap::kIndex8_Config; 29 30 default: 31 // break for unsupported colortypes 32 break; 33 } 34 return SkBitmap::kNo_Config; 35 } 36 37 SkColorType SkBitmapConfigToColorType(SkBitmap::Config config) { 38 static const SkColorType gCT[] = { 39 kUnknown_SkColorType, // kNo_Config 40 kAlpha_8_SkColorType, // kA8_Config 41 kIndex_8_SkColorType, // kIndex8_Config 42 kRGB_565_SkColorType, // kRGB_565_Config 43 kARGB_4444_SkColorType, // kARGB_4444_Config 44 kN32_SkColorType, // kARGB_8888_Config 45 }; 46 SkASSERT((unsigned)config < SK_ARRAY_COUNT(gCT)); 47 return gCT[config]; 48 } 49 #endif 50 51 SkImage* SkNewImageFromBitmap(const SkBitmap& bm, bool canSharePixelRef) { 52 const SkImageInfo info = bm.info(); 53 if (kUnknown_SkColorType == info.colorType()) { 54 return NULL; 55 } 56 57 SkImage* image = NULL; 58 if (canSharePixelRef || bm.isImmutable()) { 59 image = SkNewImageFromPixelRef(info, bm.pixelRef(), bm.rowBytes()); 60 } else { 61 bm.lockPixels(); 62 if (bm.getPixels()) { 63 image = SkImage::NewRasterCopy(info, bm.getPixels(), bm.rowBytes()); 64 } 65 bm.unlockPixels(); 66 } 67 return image; 68 } 69
