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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/gfx/image/image.h" | 5 #include "ui/gfx/image/image.h" |
6 | 6 |
7 #import <AppKit/AppKit.h> | 7 #import <AppKit/AppKit.h> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/memory/scoped_nsobject.h" | 10 #include "base/mac/scoped_nsobject.h" |
11 #include "ui/gfx/image/image_png_rep.h" | 11 #include "ui/gfx/image/image_png_rep.h" |
12 #include "ui/gfx/size.h" | 12 #include "ui/gfx/size.h" |
13 | 13 |
14 namespace gfx { | 14 namespace gfx { |
15 namespace internal { | 15 namespace internal { |
16 | 16 |
17 namespace { | 17 namespace { |
18 | 18 |
19 // Returns a 16x16 red NSImage to visually show when a NSImage cannot be | 19 // Returns a 16x16 red NSImage to visually show when a NSImage cannot be |
20 // created from PNG data. | 20 // created from PNG data. |
21 // Caller takes ownership of the returned NSImage. | 21 // Caller takes ownership of the returned NSImage. |
22 NSImage* GetErrorNSImage() { | 22 NSImage* GetErrorNSImage() { |
23 NSRect rect = NSMakeRect(0, 0, 16, 16); | 23 NSRect rect = NSMakeRect(0, 0, 16, 16); |
24 NSImage* image = [[NSImage alloc] initWithSize:rect.size]; | 24 NSImage* image = [[NSImage alloc] initWithSize:rect.size]; |
25 [image lockFocus]; | 25 [image lockFocus]; |
26 [[NSColor colorWithDeviceRed:1.0 green:0.0 blue:0.0 alpha:1.0] set]; | 26 [[NSColor colorWithDeviceRed:1.0 green:0.0 blue:0.0 alpha:1.0] set]; |
27 NSRectFill(rect); | 27 NSRectFill(rect); |
28 [image unlockFocus]; | 28 [image unlockFocus]; |
29 return image; | 29 return image; |
30 } | 30 } |
31 | 31 |
32 } // namespace | 32 } // namespace |
33 | 33 |
34 scoped_refptr<base::RefCountedMemory> Get1xPNGBytesFromNSImage( | 34 scoped_refptr<base::RefCountedMemory> Get1xPNGBytesFromNSImage( |
35 NSImage* nsimage) { | 35 NSImage* nsimage) { |
36 CGImageRef cg_image = [nsimage CGImageForProposedRect:NULL | 36 CGImageRef cg_image = [nsimage CGImageForProposedRect:NULL |
37 context:nil | 37 context:nil |
38 hints:nil]; | 38 hints:nil]; |
39 scoped_nsobject<NSBitmapImageRep> ns_bitmap( | 39 base::scoped_nsobject<NSBitmapImageRep> ns_bitmap( |
40 [[NSBitmapImageRep alloc] initWithCGImage:cg_image]); | 40 [[NSBitmapImageRep alloc] initWithCGImage:cg_image]); |
41 NSData* ns_data = [ns_bitmap representationUsingType:NSPNGFileType | 41 NSData* ns_data = [ns_bitmap representationUsingType:NSPNGFileType |
42 properties:nil]; | 42 properties:nil]; |
43 const unsigned char* bytes = | 43 const unsigned char* bytes = |
44 static_cast<const unsigned char*>([ns_data bytes]); | 44 static_cast<const unsigned char*>([ns_data bytes]); |
45 scoped_refptr<base::RefCountedBytes> refcounted_bytes( | 45 scoped_refptr<base::RefCountedBytes> refcounted_bytes( |
46 new base::RefCountedBytes()); | 46 new base::RefCountedBytes()); |
47 refcounted_bytes->data().assign(bytes, bytes + [ns_data length]); | 47 refcounted_bytes->data().assign(bytes, bytes + [ns_data length]); |
48 return refcounted_bytes; | 48 return refcounted_bytes; |
49 } | 49 } |
50 | 50 |
51 NSImage* NSImageFromPNG(const std::vector<gfx::ImagePNGRep>& image_png_reps, | 51 NSImage* NSImageFromPNG(const std::vector<gfx::ImagePNGRep>& image_png_reps, |
52 CGColorSpaceRef color_space) { | 52 CGColorSpaceRef color_space) { |
53 if (image_png_reps.empty()) { | 53 if (image_png_reps.empty()) { |
54 LOG(ERROR) << "Unable to decode PNG."; | 54 LOG(ERROR) << "Unable to decode PNG."; |
55 return GetErrorNSImage(); | 55 return GetErrorNSImage(); |
56 } | 56 } |
57 | 57 |
58 scoped_nsobject<NSImage> image; | 58 base::scoped_nsobject<NSImage> image; |
59 for (size_t i = 0; i < image_png_reps.size(); ++i) { | 59 for (size_t i = 0; i < image_png_reps.size(); ++i) { |
60 scoped_refptr<base::RefCountedMemory> png = image_png_reps[i].raw_data; | 60 scoped_refptr<base::RefCountedMemory> png = image_png_reps[i].raw_data; |
61 CHECK(png.get()); | 61 CHECK(png.get()); |
62 scoped_nsobject<NSData> ns_data( | 62 base::scoped_nsobject<NSData> ns_data( |
63 [[NSData alloc] initWithBytes:png->front() length:png->size()]); | 63 [[NSData alloc] initWithBytes:png->front() length:png->size()]); |
64 scoped_nsobject<NSBitmapImageRep> ns_image_rep( | 64 base::scoped_nsobject<NSBitmapImageRep> ns_image_rep( |
65 [[NSBitmapImageRep alloc] initWithData:ns_data]); | 65 [[NSBitmapImageRep alloc] initWithData:ns_data]); |
66 if (!ns_image_rep) { | 66 if (!ns_image_rep) { |
67 LOG(ERROR) << "Unable to decode PNG at " | 67 LOG(ERROR) << "Unable to decode PNG at " |
68 << ui::GetScaleFactorScale(image_png_reps[i].scale_factor) | 68 << ui::GetScaleFactorScale(image_png_reps[i].scale_factor) |
69 << "."; | 69 << "."; |
70 return GetErrorNSImage(); | 70 return GetErrorNSImage(); |
71 } | 71 } |
72 | 72 |
73 // PNGCodec ignores colorspace related ancillary chunks (sRGB, iCCP). Ignore | 73 // PNGCodec ignores colorspace related ancillary chunks (sRGB, iCCP). Ignore |
74 // colorspace information when decoding directly from PNG to an NSImage so | 74 // colorspace information when decoding directly from PNG to an NSImage so |
75 // that the conversions: PNG -> SkBitmap -> NSImage and PNG -> NSImage | 75 // that the conversions: PNG -> SkBitmap -> NSImage and PNG -> NSImage |
76 // produce visually similar results. | 76 // produce visually similar results. |
77 CGColorSpaceModel decoded_color_space_model = CGColorSpaceGetModel( | 77 CGColorSpaceModel decoded_color_space_model = CGColorSpaceGetModel( |
78 [[ns_image_rep colorSpace] CGColorSpace]); | 78 [[ns_image_rep colorSpace] CGColorSpace]); |
79 CGColorSpaceModel color_space_model = CGColorSpaceGetModel(color_space); | 79 CGColorSpaceModel color_space_model = CGColorSpaceGetModel(color_space); |
80 if (decoded_color_space_model == color_space_model) { | 80 if (decoded_color_space_model == color_space_model) { |
81 scoped_nsobject<NSColorSpace> ns_color_space( | 81 base::scoped_nsobject<NSColorSpace> ns_color_space( |
82 [[NSColorSpace alloc] initWithCGColorSpace:color_space]); | 82 [[NSColorSpace alloc] initWithCGColorSpace:color_space]); |
83 NSBitmapImageRep* ns_retagged_image_rep = | 83 NSBitmapImageRep* ns_retagged_image_rep = |
84 [ns_image_rep | 84 [ns_image_rep |
85 bitmapImageRepByRetaggingWithColorSpace:ns_color_space]; | 85 bitmapImageRepByRetaggingWithColorSpace:ns_color_space]; |
86 if (ns_retagged_image_rep && ns_retagged_image_rep != ns_image_rep) | 86 if (ns_retagged_image_rep && ns_retagged_image_rep != ns_image_rep) |
87 ns_image_rep.reset([ns_retagged_image_rep retain]); | 87 ns_image_rep.reset([ns_retagged_image_rep retain]); |
88 } | 88 } |
89 | 89 |
90 if (!image.get()) { | 90 if (!image.get()) { |
91 float scale = ui::GetScaleFactorScale(image_png_reps[i].scale_factor); | 91 float scale = ui::GetScaleFactorScale(image_png_reps[i].scale_factor); |
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102 gfx::Size NSImageSize(NSImage* image) { | 102 gfx::Size NSImageSize(NSImage* image) { |
103 NSSize size = [image size]; | 103 NSSize size = [image size]; |
104 int width = static_cast<int>(size.width); | 104 int width = static_cast<int>(size.width); |
105 int height = static_cast<int>(size.height); | 105 int height = static_cast<int>(size.height); |
106 return gfx::Size(width, height); | 106 return gfx::Size(width, height); |
107 } | 107 } |
108 | 108 |
109 } // namespace internal | 109 } // namespace internal |
110 } // namespace gfx | 110 } // namespace gfx |
111 | 111 |
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