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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "skia/public/type_converters.h" | |
| 6 | |
| 7 #include <stddef.h> | |
| 8 #include <stdint.h> | |
| 9 #include <string.h> | |
| 10 | |
| 11 #include "base/logging.h" | |
| 12 #include "third_party/skia/include/core/SkBitmap.h" | |
| 13 | |
| 14 namespace mojo { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 SkColorType MojoColorTypeToSk(skia::mojom::ColorType type) { | |
| 19 switch (type) { | |
| 20 case skia::mojom::ColorType::UNKNOWN: | |
| 21 return kUnknown_SkColorType; | |
| 22 case skia::mojom::ColorType::ALPHA_8: | |
| 23 return kAlpha_8_SkColorType; | |
| 24 case skia::mojom::ColorType::RGB_565: | |
| 25 return kRGB_565_SkColorType; | |
| 26 case skia::mojom::ColorType::ARGB_4444: | |
| 27 return kARGB_4444_SkColorType; | |
| 28 case skia::mojom::ColorType::RGBA_8888: | |
| 29 return kRGBA_8888_SkColorType; | |
| 30 case skia::mojom::ColorType::BGRA_8888: | |
| 31 return kBGRA_8888_SkColorType; | |
| 32 case skia::mojom::ColorType::INDEX_8: | |
| 33 return kIndex_8_SkColorType; | |
| 34 case skia::mojom::ColorType::GRAY_8: | |
| 35 return kGray_8_SkColorType; | |
| 36 default: | |
| 37 NOTREACHED(); | |
| 38 } | |
| 39 return kUnknown_SkColorType; | |
| 40 } | |
| 41 | |
| 42 SkAlphaType MojoAlphaTypeToSk(skia::mojom::AlphaType type) { | |
| 43 switch (type) { | |
| 44 case skia::mojom::AlphaType::UNKNOWN: | |
| 45 return kUnknown_SkAlphaType; | |
| 46 case skia::mojom::AlphaType::ALPHA_TYPE_OPAQUE: | |
| 47 return kOpaque_SkAlphaType; | |
| 48 case skia::mojom::AlphaType::PREMUL: | |
| 49 return kPremul_SkAlphaType; | |
| 50 case skia::mojom::AlphaType::UNPREMUL: | |
| 51 return kUnpremul_SkAlphaType; | |
| 52 default: | |
| 53 NOTREACHED(); | |
| 54 } | |
| 55 return kUnknown_SkAlphaType; | |
| 56 } | |
| 57 | |
| 58 skia::mojom::ColorType SkColorTypeToMojo(SkColorType type) { | |
| 59 switch (type) { | |
| 60 case kUnknown_SkColorType: | |
| 61 return skia::mojom::ColorType::UNKNOWN; | |
| 62 case kAlpha_8_SkColorType: | |
| 63 return skia::mojom::ColorType::ALPHA_8; | |
| 64 case kRGB_565_SkColorType: | |
| 65 return skia::mojom::ColorType::RGB_565; | |
| 66 case kARGB_4444_SkColorType: | |
| 67 return skia::mojom::ColorType::ARGB_4444; | |
| 68 case kRGBA_8888_SkColorType: | |
| 69 return skia::mojom::ColorType::RGBA_8888; | |
| 70 case kBGRA_8888_SkColorType: | |
| 71 return skia::mojom::ColorType::BGRA_8888; | |
| 72 case kIndex_8_SkColorType: | |
| 73 return skia::mojom::ColorType::INDEX_8; | |
| 74 case kGray_8_SkColorType: | |
| 75 return skia::mojom::ColorType::GRAY_8; | |
| 76 default: | |
| 77 NOTREACHED(); | |
| 78 } | |
| 79 return skia::mojom::ColorType::UNKNOWN; | |
| 80 } | |
| 81 | |
| 82 skia::mojom::AlphaType SkAlphaTypeToMojo(SkAlphaType type) { | |
| 83 switch (type) { | |
| 84 case kUnknown_SkAlphaType: | |
| 85 return skia::mojom::AlphaType::UNKNOWN; | |
| 86 case kOpaque_SkAlphaType: | |
| 87 return skia::mojom::AlphaType::ALPHA_TYPE_OPAQUE; | |
| 88 case kPremul_SkAlphaType: | |
| 89 return skia::mojom::AlphaType::PREMUL; | |
| 90 case kUnpremul_SkAlphaType: | |
| 91 return skia::mojom::AlphaType::UNPREMUL; | |
| 92 default: | |
| 93 NOTREACHED(); | |
| 94 } | |
| 95 return skia::mojom::AlphaType::UNKNOWN; | |
| 96 } | |
| 97 | |
| 98 } // namespace | |
| 99 | |
| 100 SkBitmap TypeConverter<SkBitmap, skia::mojom::BitmapPtr>::Convert( | |
| 101 const skia::mojom::BitmapPtr& image) { | |
| 102 SkBitmap bitmap; | |
| 103 if (image.is_null()) | |
| 104 return bitmap; | |
| 105 if (!bitmap.tryAllocPixels(SkImageInfo::Make( | |
| 106 image->width, image->height, MojoColorTypeToSk(image->color_type), | |
| 107 MojoAlphaTypeToSk(image->alpha_type)))) { | |
| 108 return SkBitmap(); | |
| 109 } | |
| 110 if (bitmap.getSize() != image->pixel_data.size() || !bitmap.getPixels()) { | |
| 111 return SkBitmap(); | |
| 112 } | |
| 113 | |
| 114 memcpy(bitmap.getPixels(), &image->pixel_data[0], bitmap.getSize()); | |
| 115 return bitmap; | |
| 116 } | |
| 117 | |
| 118 skia::mojom::BitmapPtr TypeConverter<skia::mojom::BitmapPtr, SkBitmap>::Convert( | |
| 119 const SkBitmap& bitmap) { | |
| 120 if (bitmap.isNull()) | |
| 121 return nullptr; | |
| 122 | |
| 123 // NOTE: This code doesn't correctly serialize Index8 bitmaps. | |
| 124 const SkImageInfo& info = bitmap.info(); | |
| 125 DCHECK_NE(info.colorType(), kIndex_8_SkColorType); | |
| 126 if (info.colorType() == kIndex_8_SkColorType) | |
| 127 return nullptr; | |
| 128 skia::mojom::BitmapPtr result = skia::mojom::Bitmap::New(); | |
| 129 result->color_type = SkColorTypeToMojo(info.colorType()); | |
| 130 result->alpha_type = SkAlphaTypeToMojo(info.alphaType()); | |
| 131 result->width = info.width(); | |
| 132 result->height = info.height(); | |
| 133 size_t size = bitmap.getSize(); | |
| 134 size_t row_bytes = bitmap.rowBytes(); | |
| 135 result->pixel_data = mojo::Array<uint8_t>::New(size); | |
| 136 if (!bitmap.readPixels(info, &result->pixel_data[0], row_bytes, 0, 0)) | |
| 137 return nullptr; | |
| 138 return result; | |
| 139 } | |
| 140 | |
| 141 } // namespace mojo | |
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Chromium Code Reviews
Issue 2014013002:
Add SkBitmap StructTraits for skia::mojo::Bitmap. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master