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| 1 /* |
| 2 * Copyright 2016 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 "ImageSlide.h" |
| 9 |
| 10 #include "SkBitmap.h" |
| 11 #include "SkCodec.h" |
| 12 #include "SkColorSpaceXform.h" |
| 13 #include "SkColorSpace.h" |
| 14 #include "SkCanvas.h" |
| 15 #include "SkData.h" |
| 16 #include "SkImage.h" |
| 17 #include "SkMetaData.h" |
| 18 |
| 19 ImageSlide::ImageSlide(const SkString& name, const SkString& path) : fPath(path)
{ |
| 20 fName = name; |
| 21 } |
| 22 |
| 23 SkISize ImageSlide::getDimensions() const { |
| 24 return fImage ? fImage->dimensions() : SkISize::Make(0, 0); |
| 25 } |
| 26 |
| 27 void ImageSlide::draw(SkCanvas* canvas) { |
| 28 if (canvas->getMetaData().hasBool(kImageColorXformMetaData, true)) { |
| 29 canvas->drawBitmap(fXformedBitmap, 0, 0); |
| 30 } else { |
| 31 // skbug.com/5428 |
| 32 // drawImage() and drawBitmap() behave differently in sRGB mode. |
| 33 // canvas->drawImage(fImage.get(), 0, 0); |
| 34 canvas->drawBitmap(fOriginalBitmap, 0, 0); |
| 35 } |
| 36 } |
| 37 |
| 38 void ImageSlide::load() { |
| 39 sk_sp<SkData> encoded = SkData::MakeFromFileName(fPath.c_str()); |
| 40 fImage = SkImage::MakeFromEncoded(encoded); |
| 41 fImage->asLegacyBitmap(&fOriginalBitmap, SkImage::kRO_LegacyBitmapMode); |
| 42 |
| 43 SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(encoded.get())); |
| 44 sk_sp<SkColorSpace> srcSpace = sk_ref_sp(codec->getColorSpace()); |
| 45 sk_sp<SkColorSpace> dstSpace = SkColorSpace::NewNamed(SkColorSpace::kAdobeRG
B_Named); |
| 46 std::unique_ptr<SkColorSpaceXform> xform = SkColorSpaceXform::New(srcSpace,
dstSpace); |
| 47 fOriginalBitmap.deepCopyTo(&fXformedBitmap); |
| 48 uint32_t* row = (uint32_t*) fXformedBitmap.getPixels(); |
| 49 for (int y = 0; y < fXformedBitmap.height(); y++) { |
| 50 xform->xform_RGBA_8888(row, row, fXformedBitmap.width()); |
| 51 row = SkTAddOffset<uint32_t>(row, fXformedBitmap.rowBytes()); |
| 52 } |
| 53 fXformedBitmap.notifyPixelsChanged(); // This is needed for the deepCopy |
| 54 } |
| 55 |
| 56 void ImageSlide::unload() { |
| 57 fImage.reset(nullptr); |
| 58 } |
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