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Issue 854713003: More old files deletion. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Fix tryjobs? Created 5 years, 11 months ago
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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
3 // found in the LICENSE file.
4
5 #include "ui/gfx/image/image.h"
6
7 #include <algorithm>
8 #include <set>
9
10 #include "base/logging.h"
11 #include "base/memory/scoped_ptr.h"
12 #include "base/stl_util.h"
13 #include "third_party/skia/include/core/SkBitmap.h"
14 #include "ui/gfx/image/image_png_rep.h"
15 #include "ui/gfx/image/image_skia.h"
16 #include "ui/gfx/image/image_skia_source.h"
17 #include "ui/gfx/size.h"
18
19 #if !defined(OS_IOS)
20 #include "ui/gfx/codec/png_codec.h"
21 #endif
22
23 #if defined(OS_IOS)
24 #include "base/mac/foundation_util.h"
25 #include "ui/gfx/image/image_skia_util_ios.h"
26 #elif defined(OS_MACOSX)
27 #include "base/mac/mac_util.h"
28 #include "ui/gfx/image/image_skia_util_mac.h"
29 #endif
30
31 namespace gfx {
32
33 namespace internal {
34
35 #if defined(OS_IOS)
36 scoped_refptr<base::RefCountedMemory> Get1xPNGBytesFromUIImage(
37 UIImage* uiimage);
38 // Caller takes ownership of the returned UIImage.
39 UIImage* CreateUIImageFromPNG(
40 const std::vector<ImagePNGRep>& image_png_reps);
41 gfx::Size UIImageSize(UIImage* image);
42 #elif defined(OS_MACOSX)
43 scoped_refptr<base::RefCountedMemory> Get1xPNGBytesFromNSImage(
44 NSImage* nsimage);
45 // Caller takes ownership of the returned NSImage.
46 NSImage* NSImageFromPNG(const std::vector<ImagePNGRep>& image_png_reps,
47 CGColorSpaceRef color_space);
48 gfx::Size NSImageSize(NSImage* image);
49 #endif // defined(OS_MACOSX)
50
51 #if defined(OS_IOS)
52 ImageSkia* ImageSkiaFromPNG(
53 const std::vector<ImagePNGRep>& image_png_reps);
54 scoped_refptr<base::RefCountedMemory> Get1xPNGBytesFromImageSkia(
55 const ImageSkia* skia);
56 #else
57 // Returns a 16x16 red image to visually show error in decoding PNG.
58 // Caller takes ownership of returned ImageSkia.
59 ImageSkia* GetErrorImageSkia() {
60 SkBitmap bitmap;
61 bitmap.allocN32Pixels(16, 16);
62 bitmap.eraseARGB(0xff, 0xff, 0, 0);
63 return new ImageSkia(ImageSkiaRep(bitmap, 1.0f));
64 }
65
66 class PNGImageSource : public ImageSkiaSource {
67 public:
68 PNGImageSource() {}
69 ~PNGImageSource() override {}
70
71 ImageSkiaRep GetImageForScale(float scale) override {
72 if (image_skia_reps_.empty())
73 return ImageSkiaRep();
74
75 const ImageSkiaRep* rep = NULL;
76 // gfx::ImageSkia passes one of the resource scale factors. The source
77 // should return:
78 // 1) The ImageSkiaRep with the highest scale if all available
79 // scales are smaller than |scale|.
80 // 2) The ImageSkiaRep with the smallest one that is larger than |scale|.
81 for (ImageSkiaRepSet::const_iterator iter = image_skia_reps_.begin();
82 iter != image_skia_reps_.end(); ++iter) {
83 if ((*iter).scale() == scale)
84 return (*iter);
85 if (!rep || rep->scale() < (*iter).scale())
86 rep = &(*iter);
87 if (rep->scale() >= scale)
88 break;
89 }
90 return rep ? *rep : ImageSkiaRep();
91 }
92
93 const gfx::Size size() const {
94 return size_;
95 }
96
97 bool AddPNGData(const ImagePNGRep& png_rep) {
98 const gfx::ImageSkiaRep rep = ToImageSkiaRep(png_rep);
99 if (rep.is_null())
100 return false;
101 if (size_.IsEmpty())
102 size_ = gfx::Size(rep.GetWidth(), rep.GetHeight());
103 image_skia_reps_.insert(rep);
104 return true;
105 }
106
107 static ImageSkiaRep ToImageSkiaRep(const ImagePNGRep& png_rep) {
108 scoped_refptr<base::RefCountedMemory> raw_data = png_rep.raw_data;
109 CHECK(raw_data.get());
110 SkBitmap bitmap;
111 if (!PNGCodec::Decode(raw_data->front(), raw_data->size(),
112 &bitmap)) {
113 LOG(ERROR) << "Unable to decode PNG for " << png_rep.scale << ".";
114 return ImageSkiaRep();
115 }
116 return ImageSkiaRep(bitmap, png_rep.scale);
117 }
118
119 private:
120 struct Compare {
121 bool operator()(const ImageSkiaRep& rep1, const ImageSkiaRep& rep2) {
122 return rep1.scale() < rep2.scale();
123 }
124 };
125
126 typedef std::set<ImageSkiaRep, Compare> ImageSkiaRepSet;
127 ImageSkiaRepSet image_skia_reps_;
128 gfx::Size size_;
129
130 DISALLOW_COPY_AND_ASSIGN(PNGImageSource);
131 };
132
133 ImageSkia* ImageSkiaFromPNG(
134 const std::vector<ImagePNGRep>& image_png_reps) {
135 if (image_png_reps.empty())
136 return GetErrorImageSkia();
137 scoped_ptr<PNGImageSource> image_source(new PNGImageSource);
138
139 for (size_t i = 0; i < image_png_reps.size(); ++i) {
140 if (!image_source->AddPNGData(image_png_reps[i]))
141 return GetErrorImageSkia();
142 }
143 const gfx::Size& size = image_source->size();
144 DCHECK(!size.IsEmpty());
145 if (size.IsEmpty())
146 return GetErrorImageSkia();
147 return new ImageSkia(image_source.release(), size);
148 }
149
150 scoped_refptr<base::RefCountedMemory> Get1xPNGBytesFromImageSkia(
151 const ImageSkia* image_skia) {
152 ImageSkiaRep image_skia_rep = image_skia->GetRepresentation(1.0f);
153
154 scoped_refptr<base::RefCountedBytes> png_bytes(new base::RefCountedBytes());
155 if (image_skia_rep.scale() != 1.0f ||
156 !PNGCodec::EncodeBGRASkBitmap(image_skia_rep.sk_bitmap(), false,
157 &png_bytes->data())) {
158 return NULL;
159 }
160 return png_bytes;
161 }
162 #endif
163
164 class ImageRepPNG;
165 class ImageRepSkia;
166 class ImageRepCocoa;
167 class ImageRepCocoaTouch;
168
169 // An ImageRep is the object that holds the backing memory for an Image. Each
170 // RepresentationType has an ImageRep subclass that is responsible for freeing
171 // the memory that the ImageRep holds. When an ImageRep is created, it expects
172 // to take ownership of the image, without having to retain it or increase its
173 // reference count.
174 class ImageRep {
175 public:
176 explicit ImageRep(Image::RepresentationType rep) : type_(rep) {}
177
178 // Deletes the associated pixels of an ImageRep.
179 virtual ~ImageRep() {}
180
181 // Cast helpers ("fake RTTI").
182 ImageRepPNG* AsImageRepPNG() {
183 CHECK_EQ(type_, Image::kImageRepPNG);
184 return reinterpret_cast<ImageRepPNG*>(this);
185 }
186
187 ImageRepSkia* AsImageRepSkia() {
188 CHECK_EQ(type_, Image::kImageRepSkia);
189 return reinterpret_cast<ImageRepSkia*>(this);
190 }
191
192 #if defined(OS_IOS)
193 ImageRepCocoaTouch* AsImageRepCocoaTouch() {
194 CHECK_EQ(type_, Image::kImageRepCocoaTouch);
195 return reinterpret_cast<ImageRepCocoaTouch*>(this);
196 }
197 #elif defined(OS_MACOSX)
198 ImageRepCocoa* AsImageRepCocoa() {
199 CHECK_EQ(type_, Image::kImageRepCocoa);
200 return reinterpret_cast<ImageRepCocoa*>(this);
201 }
202 #endif
203
204 Image::RepresentationType type() const { return type_; }
205
206 virtual int Width() const = 0;
207 virtual int Height() const = 0;
208 virtual gfx::Size Size() const = 0;
209
210 private:
211 Image::RepresentationType type_;
212 };
213
214 class ImageRepPNG : public ImageRep {
215 public:
216 ImageRepPNG() : ImageRep(Image::kImageRepPNG) {
217 }
218
219 ImageRepPNG(const std::vector<ImagePNGRep>& image_png_reps)
220 : ImageRep(Image::kImageRepPNG),
221 image_png_reps_(image_png_reps) {
222 }
223
224 ~ImageRepPNG() override {}
225
226 int Width() const override { return Size().width(); }
227
228 int Height() const override { return Size().height(); }
229
230 gfx::Size Size() const override {
231 // Read the PNG data to get the image size, caching it.
232 if (!size_cache_) {
233 for (std::vector<ImagePNGRep>::const_iterator it = image_reps().begin();
234 it != image_reps().end(); ++it) {
235 if (it->scale == 1.0f) {
236 size_cache_.reset(new gfx::Size(it->Size()));
237 return *size_cache_;
238 }
239 }
240 size_cache_.reset(new gfx::Size);
241 }
242
243 return *size_cache_;
244 }
245
246 const std::vector<ImagePNGRep>& image_reps() const { return image_png_reps_; }
247
248 private:
249 std::vector<ImagePNGRep> image_png_reps_;
250
251 // Cached to avoid having to parse the raw data multiple times.
252 mutable scoped_ptr<gfx::Size> size_cache_;
253
254 DISALLOW_COPY_AND_ASSIGN(ImageRepPNG);
255 };
256
257 class ImageRepSkia : public ImageRep {
258 public:
259 // Takes ownership of |image|.
260 explicit ImageRepSkia(ImageSkia* image)
261 : ImageRep(Image::kImageRepSkia),
262 image_(image) {
263 }
264
265 ~ImageRepSkia() override {}
266
267 int Width() const override { return image_->width(); }
268
269 int Height() const override { return image_->height(); }
270
271 gfx::Size Size() const override { return image_->size(); }
272
273 ImageSkia* image() { return image_.get(); }
274
275 private:
276 scoped_ptr<ImageSkia> image_;
277
278 DISALLOW_COPY_AND_ASSIGN(ImageRepSkia);
279 };
280
281 #if defined(OS_IOS)
282 class ImageRepCocoaTouch : public ImageRep {
283 public:
284 explicit ImageRepCocoaTouch(UIImage* image)
285 : ImageRep(Image::kImageRepCocoaTouch),
286 image_(image) {
287 CHECK(image);
288 }
289
290 virtual ~ImageRepCocoaTouch() {
291 base::mac::NSObjectRelease(image_);
292 image_ = nil;
293 }
294
295 virtual int Width() const override {
296 return Size().width();
297 }
298
299 virtual int Height() const override {
300 return Size().height();
301 }
302
303 virtual gfx::Size Size() const override {
304 return internal::UIImageSize(image_);
305 }
306
307 UIImage* image() const { return image_; }
308
309 private:
310 UIImage* image_;
311
312 DISALLOW_COPY_AND_ASSIGN(ImageRepCocoaTouch);
313 };
314 #elif defined(OS_MACOSX)
315 class ImageRepCocoa : public ImageRep {
316 public:
317 explicit ImageRepCocoa(NSImage* image)
318 : ImageRep(Image::kImageRepCocoa),
319 image_(image) {
320 CHECK(image);
321 }
322
323 ~ImageRepCocoa() override {
324 base::mac::NSObjectRelease(image_);
325 image_ = nil;
326 }
327
328 int Width() const override { return Size().width(); }
329
330 int Height() const override { return Size().height(); }
331
332 gfx::Size Size() const override { return internal::NSImageSize(image_); }
333
334 NSImage* image() const { return image_; }
335
336 private:
337 NSImage* image_;
338
339 DISALLOW_COPY_AND_ASSIGN(ImageRepCocoa);
340 };
341 #endif // defined(OS_MACOSX)
342
343 // The Storage class acts similarly to the pixels in a SkBitmap: the Image
344 // class holds a refptr instance of Storage, which in turn holds all the
345 // ImageReps. This way, the Image can be cheaply copied.
346 class ImageStorage : public base::RefCounted<ImageStorage> {
347 public:
348 ImageStorage(Image::RepresentationType default_type)
349 : default_representation_type_(default_type),
350 #if defined(OS_MACOSX) && !defined(OS_IOS)
351 default_representation_color_space_(
352 base::mac::GetGenericRGBColorSpace()),
353 #endif // defined(OS_MACOSX) && !defined(OS_IOS)
354 representations_deleter_(&representations_) {
355 }
356
357 Image::RepresentationType default_representation_type() {
358 return default_representation_type_;
359 }
360 Image::RepresentationMap& representations() { return representations_; }
361
362 #if defined(OS_MACOSX) && !defined(OS_IOS)
363 void set_default_representation_color_space(CGColorSpaceRef color_space) {
364 default_representation_color_space_ = color_space;
365 }
366 CGColorSpaceRef default_representation_color_space() {
367 return default_representation_color_space_;
368 }
369 #endif // defined(OS_MACOSX) && !defined(OS_IOS)
370
371 private:
372 friend class base::RefCounted<ImageStorage>;
373
374 ~ImageStorage() {}
375
376 // The type of image that was passed to the constructor. This key will always
377 // exist in the |representations_| map.
378 Image::RepresentationType default_representation_type_;
379
380 #if defined(OS_MACOSX) && !defined(OS_IOS)
381 // The default representation's colorspace. This is used for converting to
382 // NSImage. This field exists to compensate for PNGCodec not writing or
383 // reading colorspace ancillary chunks. (sRGB, iCCP).
384 // Not owned.
385 CGColorSpaceRef default_representation_color_space_;
386 #endif // defined(OS_MACOSX) && !defined(OS_IOS)
387
388 // All the representations of an Image. Size will always be at least one, with
389 // more for any converted representations.
390 Image::RepresentationMap representations_;
391
392 STLValueDeleter<Image::RepresentationMap> representations_deleter_;
393
394 DISALLOW_COPY_AND_ASSIGN(ImageStorage);
395 };
396
397 } // namespace internal
398
399 Image::Image() {
400 // |storage_| is NULL for empty Images.
401 }
402
403 Image::Image(const std::vector<ImagePNGRep>& image_reps) {
404 // Do not store obviously invalid ImagePNGReps.
405 std::vector<ImagePNGRep> filtered;
406 for (size_t i = 0; i < image_reps.size(); ++i) {
407 if (image_reps[i].raw_data.get() && image_reps[i].raw_data->size())
408 filtered.push_back(image_reps[i]);
409 }
410
411 if (filtered.empty())
412 return;
413
414 storage_ = new internal::ImageStorage(Image::kImageRepPNG);
415 internal::ImageRepPNG* rep = new internal::ImageRepPNG(filtered);
416 AddRepresentation(rep);
417 }
418
419 Image::Image(const ImageSkia& image) {
420 if (!image.isNull()) {
421 storage_ = new internal::ImageStorage(Image::kImageRepSkia);
422 internal::ImageRepSkia* rep = new internal::ImageRepSkia(
423 new ImageSkia(image));
424 AddRepresentation(rep);
425 }
426 }
427
428 #if defined(OS_IOS)
429 Image::Image(UIImage* image)
430 : storage_(new internal::ImageStorage(Image::kImageRepCocoaTouch)) {
431 if (image) {
432 internal::ImageRepCocoaTouch* rep = new internal::ImageRepCocoaTouch(image);
433 AddRepresentation(rep);
434 }
435 }
436 #elif defined(OS_MACOSX)
437 Image::Image(NSImage* image) {
438 if (image) {
439 storage_ = new internal::ImageStorage(Image::kImageRepCocoa);
440 internal::ImageRepCocoa* rep = new internal::ImageRepCocoa(image);
441 AddRepresentation(rep);
442 }
443 }
444 #endif
445
446 Image::Image(const Image& other) : storage_(other.storage_) {
447 }
448
449 Image& Image::operator=(const Image& other) {
450 storage_ = other.storage_;
451 return *this;
452 }
453
454 Image::~Image() {
455 }
456
457 // static
458 Image Image::CreateFrom1xBitmap(const SkBitmap& bitmap) {
459 return Image(ImageSkia::CreateFrom1xBitmap(bitmap));
460 }
461
462 // static
463 Image Image::CreateFrom1xPNGBytes(const unsigned char* input,
464 size_t input_size) {
465 if (input_size == 0u)
466 return Image();
467
468 scoped_refptr<base::RefCountedBytes> raw_data(new base::RefCountedBytes());
469 raw_data->data().assign(input, input + input_size);
470
471 return CreateFrom1xPNGBytes(raw_data);
472 }
473
474 Image Image::CreateFrom1xPNGBytes(
475 const scoped_refptr<base::RefCountedMemory>& input) {
476 if (!input.get() || input->size() == 0u)
477 return Image();
478
479 std::vector<ImagePNGRep> image_reps;
480 image_reps.push_back(ImagePNGRep(input, 1.0f));
481 return Image(image_reps);
482 }
483
484 const SkBitmap* Image::ToSkBitmap() const {
485 // Possibly create and cache an intermediate ImageRepSkia.
486 return ToImageSkia()->bitmap();
487 }
488
489 const ImageSkia* Image::ToImageSkia() const {
490 internal::ImageRep* rep = GetRepresentation(kImageRepSkia, false);
491 if (!rep) {
492 switch (DefaultRepresentationType()) {
493 case kImageRepPNG: {
494 internal::ImageRepPNG* png_rep =
495 GetRepresentation(kImageRepPNG, true)->AsImageRepPNG();
496 rep = new internal::ImageRepSkia(
497 internal::ImageSkiaFromPNG(png_rep->image_reps()));
498 break;
499 }
500 #if defined(OS_IOS)
501 case kImageRepCocoaTouch: {
502 internal::ImageRepCocoaTouch* native_rep =
503 GetRepresentation(kImageRepCocoaTouch, true)
504 ->AsImageRepCocoaTouch();
505 rep = new internal::ImageRepSkia(new ImageSkia(
506 ImageSkiaFromUIImage(native_rep->image())));
507 break;
508 }
509 #elif defined(OS_MACOSX)
510 case kImageRepCocoa: {
511 internal::ImageRepCocoa* native_rep =
512 GetRepresentation(kImageRepCocoa, true)->AsImageRepCocoa();
513 rep = new internal::ImageRepSkia(new ImageSkia(
514 ImageSkiaFromNSImage(native_rep->image())));
515 break;
516 }
517 #endif
518 default:
519 NOTREACHED();
520 }
521 CHECK(rep);
522 AddRepresentation(rep);
523 }
524 return rep->AsImageRepSkia()->image();
525 }
526
527 #if defined(OS_IOS)
528 UIImage* Image::ToUIImage() const {
529 internal::ImageRep* rep = GetRepresentation(kImageRepCocoaTouch, false);
530 if (!rep) {
531 switch (DefaultRepresentationType()) {
532 case kImageRepPNG: {
533 internal::ImageRepPNG* png_rep =
534 GetRepresentation(kImageRepPNG, true)->AsImageRepPNG();
535 rep = new internal::ImageRepCocoaTouch(internal::CreateUIImageFromPNG(
536 png_rep->image_reps()));
537 break;
538 }
539 case kImageRepSkia: {
540 internal::ImageRepSkia* skia_rep =
541 GetRepresentation(kImageRepSkia, true)->AsImageRepSkia();
542 UIImage* image = UIImageFromImageSkia(*skia_rep->image());
543 base::mac::NSObjectRetain(image);
544 rep = new internal::ImageRepCocoaTouch(image);
545 break;
546 }
547 default:
548 NOTREACHED();
549 }
550 CHECK(rep);
551 AddRepresentation(rep);
552 }
553 return rep->AsImageRepCocoaTouch()->image();
554 }
555 #elif defined(OS_MACOSX)
556 NSImage* Image::ToNSImage() const {
557 internal::ImageRep* rep = GetRepresentation(kImageRepCocoa, false);
558 if (!rep) {
559 CGColorSpaceRef default_representation_color_space =
560 storage_->default_representation_color_space();
561
562 switch (DefaultRepresentationType()) {
563 case kImageRepPNG: {
564 internal::ImageRepPNG* png_rep =
565 GetRepresentation(kImageRepPNG, true)->AsImageRepPNG();
566 rep = new internal::ImageRepCocoa(internal::NSImageFromPNG(
567 png_rep->image_reps(), default_representation_color_space));
568 break;
569 }
570 case kImageRepSkia: {
571 internal::ImageRepSkia* skia_rep =
572 GetRepresentation(kImageRepSkia, true)->AsImageRepSkia();
573 NSImage* image = NSImageFromImageSkiaWithColorSpace(*skia_rep->image(),
574 default_representation_color_space);
575 base::mac::NSObjectRetain(image);
576 rep = new internal::ImageRepCocoa(image);
577 break;
578 }
579 default:
580 NOTREACHED();
581 }
582 CHECK(rep);
583 AddRepresentation(rep);
584 }
585 return rep->AsImageRepCocoa()->image();
586 }
587 #endif
588
589 scoped_refptr<base::RefCountedMemory> Image::As1xPNGBytes() const {
590 if (IsEmpty())
591 return new base::RefCountedBytes();
592
593 internal::ImageRep* rep = GetRepresentation(kImageRepPNG, false);
594
595 if (rep) {
596 const std::vector<ImagePNGRep>& image_png_reps =
597 rep->AsImageRepPNG()->image_reps();
598 for (size_t i = 0; i < image_png_reps.size(); ++i) {
599 if (image_png_reps[i].scale == 1.0f)
600 return image_png_reps[i].raw_data;
601 }
602 return new base::RefCountedBytes();
603 }
604
605 scoped_refptr<base::RefCountedMemory> png_bytes(NULL);
606 switch (DefaultRepresentationType()) {
607 #if defined(OS_IOS)
608 case kImageRepCocoaTouch: {
609 internal::ImageRepCocoaTouch* cocoa_touch_rep =
610 GetRepresentation(kImageRepCocoaTouch, true)
611 ->AsImageRepCocoaTouch();
612 png_bytes = internal::Get1xPNGBytesFromUIImage(
613 cocoa_touch_rep->image());
614 break;
615 }
616 #elif defined(OS_MACOSX)
617 case kImageRepCocoa: {
618 internal::ImageRepCocoa* cocoa_rep =
619 GetRepresentation(kImageRepCocoa, true)->AsImageRepCocoa();
620 png_bytes = internal::Get1xPNGBytesFromNSImage(cocoa_rep->image());
621 break;
622 }
623 #endif
624 case kImageRepSkia: {
625 internal::ImageRepSkia* skia_rep =
626 GetRepresentation(kImageRepSkia, true)->AsImageRepSkia();
627 png_bytes = internal::Get1xPNGBytesFromImageSkia(skia_rep->image());
628 break;
629 }
630 default:
631 NOTREACHED();
632 }
633 if (!png_bytes.get() || !png_bytes->size()) {
634 // Add an ImageRepPNG with no data such that the conversion is not
635 // attempted each time we want the PNG bytes.
636 AddRepresentation(new internal::ImageRepPNG());
637 return new base::RefCountedBytes();
638 }
639
640 // Do not insert representations for scale factors other than 1x even if
641 // they are available because:
642 // - Only the 1x PNG bytes can be accessed.
643 // - ImageRepPNG is not used as an intermediate type in converting to a
644 // final type eg (converting from ImageRepSkia to ImageRepPNG to get an
645 // ImageRepCocoa).
646 std::vector<ImagePNGRep> image_png_reps;
647 image_png_reps.push_back(ImagePNGRep(png_bytes, 1.0f));
648 rep = new internal::ImageRepPNG(image_png_reps);
649 AddRepresentation(rep);
650 return png_bytes;
651 }
652
653 SkBitmap Image::AsBitmap() const {
654 return IsEmpty() ? SkBitmap() : *ToSkBitmap();
655 }
656
657 ImageSkia Image::AsImageSkia() const {
658 return IsEmpty() ? ImageSkia() : *ToImageSkia();
659 }
660
661 #if defined(OS_MACOSX) && !defined(OS_IOS)
662 NSImage* Image::AsNSImage() const {
663 return IsEmpty() ? nil : ToNSImage();
664 }
665 #endif
666
667 scoped_refptr<base::RefCountedMemory> Image::Copy1xPNGBytes() const {
668 scoped_refptr<base::RefCountedMemory> original = As1xPNGBytes();
669 scoped_refptr<base::RefCountedBytes> copy(new base::RefCountedBytes());
670 copy->data().assign(original->front(), original->front() + original->size());
671 return copy;
672 }
673
674 ImageSkia* Image::CopyImageSkia() const {
675 return new ImageSkia(*ToImageSkia());
676 }
677
678 SkBitmap* Image::CopySkBitmap() const {
679 return new SkBitmap(*ToSkBitmap());
680 }
681
682 #if defined(OS_IOS)
683 UIImage* Image::CopyUIImage() const {
684 UIImage* image = ToUIImage();
685 base::mac::NSObjectRetain(image);
686 return image;
687 }
688 #elif defined(OS_MACOSX)
689 NSImage* Image::CopyNSImage() const {
690 NSImage* image = ToNSImage();
691 base::mac::NSObjectRetain(image);
692 return image;
693 }
694 #endif
695
696 bool Image::HasRepresentation(RepresentationType type) const {
697 return storage_.get() && storage_->representations().count(type) != 0;
698 }
699
700 size_t Image::RepresentationCount() const {
701 if (!storage_.get())
702 return 0;
703
704 return storage_->representations().size();
705 }
706
707 bool Image::IsEmpty() const {
708 return RepresentationCount() == 0;
709 }
710
711 int Image::Width() const {
712 if (IsEmpty())
713 return 0;
714 return GetRepresentation(DefaultRepresentationType(), true)->Width();
715 }
716
717 int Image::Height() const {
718 if (IsEmpty())
719 return 0;
720 return GetRepresentation(DefaultRepresentationType(), true)->Height();
721 }
722
723 gfx::Size Image::Size() const {
724 if (IsEmpty())
725 return gfx::Size();
726 return GetRepresentation(DefaultRepresentationType(), true)->Size();
727 }
728
729 void Image::SwapRepresentations(Image* other) {
730 storage_.swap(other->storage_);
731 }
732
733 #if defined(OS_MACOSX) && !defined(OS_IOS)
734 void Image::SetSourceColorSpace(CGColorSpaceRef color_space) {
735 if (storage_.get())
736 storage_->set_default_representation_color_space(color_space);
737 }
738 #endif // defined(OS_MACOSX) && !defined(OS_IOS)
739
740 Image::RepresentationType Image::DefaultRepresentationType() const {
741 CHECK(storage_.get());
742 return storage_->default_representation_type();
743 }
744
745 internal::ImageRep* Image::GetRepresentation(
746 RepresentationType rep_type, bool must_exist) const {
747 CHECK(storage_.get());
748 RepresentationMap::iterator it = storage_->representations().find(rep_type);
749 if (it == storage_->representations().end()) {
750 CHECK(!must_exist);
751 return NULL;
752 }
753 return it->second;
754 }
755
756 void Image::AddRepresentation(internal::ImageRep* rep) const {
757 CHECK(storage_.get());
758 storage_->representations().insert(std::make_pair(rep->type(), rep));
759 }
760
761 } // namespace gfx
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