1 // Copyright 2012 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 "ui/gfx/image/image_skia_util_ios.h" 6 7 #include <UIKit/UIKit.h> 8 9 #include "base/logging.h" 10 #include "base/mac/scoped_cftyperef.h" 11 #include "skia/ext/skia_utils_ios.h" 12 #include "third_party/skia/include/core/SkBitmap.h" 13 #include "ui/gfx/image/image_skia.h" 14 15 namespace gfx { 16 17 gfx::ImageSkia ImageSkiaFromUIImage(UIImage* image) { 18 gfx::ImageSkia image_skia; 19 gfx::ImageSkiaRep image_skia_rep = ImageSkiaRepOfScaleFactorFromUIImage( 20 image, ui::GetMaxScaleFactor()); 21 if (!image_skia_rep.is_null()) 22 image_skia.AddRepresentation(image_skia_rep); 23 return image_skia; 24 } 25 26 gfx::ImageSkiaRep ImageSkiaRepOfScaleFactorFromUIImage( 27 UIImage* image, 28 ui::ScaleFactor scale_factor) { 29 if (!image) 30 return gfx::ImageSkiaRep(); 31 32 float scale = ui::GetScaleFactorScale(scale_factor); 33 CGSize size = image.size; 34 CGSize desired_size_for_scale = 35 CGSizeMake(size.width * scale, size.height * scale); 36 SkBitmap bitmap(gfx::CGImageToSkBitmap(image.CGImage, 37 desired_size_for_scale, 38 false)); 39 return gfx::ImageSkiaRep(bitmap, scale_factor); 40 } 41 42 UIImage* UIImageFromImageSkia(const gfx::ImageSkia& image_skia) { 43 return UIImageFromImageSkiaRep(image_skia.GetRepresentation( 44 ui::GetMaxScaleFactor())); 45 } 46 47 UIImage* UIImageFromImageSkiaRep(const gfx::ImageSkiaRep& image_skia_rep) { 48 if (image_skia_rep.is_null()) 49 return nil; 50 51 float scale = ui::GetScaleFactorScale(image_skia_rep.scale_factor()); 52 base::ScopedCFTypeRef<CGColorSpaceRef> color_space( 53 CGColorSpaceCreateDeviceRGB()); 54 return gfx::SkBitmapToUIImageWithColorSpace(image_skia_rep.sk_bitmap(), scale, 55 color_space); 56 } 57 58 } // namespace gfx 59
