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 float max_scale = ImageSkia::GetSupportedScales().back(); 20 gfx::ImageSkiaRep image_skia_rep = ImageSkiaRepOfScaleFromUIImage( 21 image, max_scale); 22 if (!image_skia_rep.is_null()) 23 image_skia.AddRepresentation(image_skia_rep); 24 return image_skia; 25 } 26 27 gfx::ImageSkiaRep ImageSkiaRepOfScaleFromUIImage(UIImage* image, float scale) { 28 if (!image) 29 return gfx::ImageSkiaRep(); 30 31 CGSize size = image.size; 32 CGSize desired_size_for_scale = 33 CGSizeMake(size.width * scale, size.height * scale); 34 SkBitmap bitmap(gfx::CGImageToSkBitmap(image.CGImage, 35 desired_size_for_scale, 36 false)); 37 return gfx::ImageSkiaRep(bitmap, scale); 38 } 39 40 UIImage* UIImageFromImageSkia(const gfx::ImageSkia& image_skia) { 41 return UIImageFromImageSkiaRep( 42 image_skia.GetRepresentation(ImageSkia::GetSupportedScales().back())); 43 } 44 45 UIImage* UIImageFromImageSkiaRep(const gfx::ImageSkiaRep& image_skia_rep) { 46 if (image_skia_rep.is_null()) 47 return nil; 48 49 float scale = image_skia_rep.scale(); 50 base::ScopedCFTypeRef<CGColorSpaceRef> color_space( 51 CGColorSpaceCreateDeviceRGB()); 52 return gfx::SkBitmapToUIImageWithColorSpace(image_skia_rep.sk_bitmap(), scale, 53 color_space); 54 } 55 56 } // namespace gfx 57
