gfx/skia/trunk/src/utils/ios/SkImageDecoder_iOS.mm@6474c204b198 (annotated)
gfx/skia/trunk/src/utils/ios/SkImageDecoder_iOS.mm
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rwxr-xr-x
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright 2010 Google Inc. |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 5 | * found in the LICENSE file. |
| michael@0 | 6 | */ |
| michael@0 | 7 | |
| michael@0 | 8 | #import <CoreGraphics/CoreGraphics.h> |
| michael@0 | 9 | #include <CoreGraphics/CGColorSpace.h> |
| michael@0 | 10 | #import <UIKit/UIKit.h> |
| michael@0 | 11 | |
| michael@0 | 12 | #include "SkImageDecoder.h" |
| michael@0 | 13 | #include "SkImageEncoder.h" |
| michael@0 | 14 | #include "SkMovie.h" |
| michael@0 | 15 | #include "SkStream_NSData.h" |
| michael@0 | 16 | |
| michael@0 | 17 | class SkImageDecoder_iOS : public SkImageDecoder { |
| michael@0 | 18 | protected: |
| michael@0 | 19 | virtual bool onDecode(SkStream* stream, SkBitmap* bm, Mode); |
| michael@0 | 20 | }; |
| michael@0 | 21 | |
| michael@0 | 22 | #define BITMAP_INFO (kCGBitmapByteOrder32Big | kCGImageAlphaPremultipliedLast) |
| michael@0 | 23 | |
| michael@0 | 24 | bool SkImageDecoder_iOS::onDecode(SkStream* stream, SkBitmap* bm, Mode mode) { |
| michael@0 | 25 | |
| michael@0 | 26 | NSData* data = NSData_dataWithStream(stream); |
| michael@0 | 27 | |
| michael@0 | 28 | UIImage* uimage = [UIImage imageWithData:data]; |
| michael@0 | 29 | |
| michael@0 | 30 | const int width = uimage.size.width; |
| michael@0 | 31 | const int height = uimage.size.height; |
| michael@0 | 32 | bm->setConfig(SkBitmap::kARGB_8888_Config, width, height); |
| michael@0 | 33 | if (SkImageDecoder::kDecodeBounds_Mode == mode) { |
| michael@0 | 34 | return true; |
| michael@0 | 35 | } |
| michael@0 | 36 | |
| michael@0 | 37 | if (!this->allocPixelRef(bm, NULL)) { |
| michael@0 | 38 | return false; |
| michael@0 | 39 | } |
| michael@0 | 40 | |
| michael@0 | 41 | bm->lockPixels(); |
| michael@0 | 42 | bm->eraseColor(0); |
| michael@0 | 43 | |
| michael@0 | 44 | CGColorSpaceRef cs = CGColorSpaceCreateDeviceRGB(); |
| michael@0 | 45 | CGContextRef cg = CGBitmapContextCreate(bm->getPixels(), width, height, |
| michael@0 | 46 | 8, bm->rowBytes(), cs, BITMAP_INFO); |
| michael@0 | 47 | CGContextDrawImage(cg, CGRectMake(0, 0, width, height), uimage.CGImage); |
| michael@0 | 48 | CGContextRelease(cg); |
| michael@0 | 49 | CGColorSpaceRelease(cs); |
| michael@0 | 50 | |
| michael@0 | 51 | bm->unlockPixels(); |
| michael@0 | 52 | return true; |
| michael@0 | 53 | } |
| michael@0 | 54 | |
| michael@0 | 55 | ///////////////////////////////////////////////////////////////////////// |
| michael@0 | 56 | |
| michael@0 | 57 | SkImageDecoder* SkImageDecoder::Factory(SkStreamRewindable* stream) { |
| michael@0 | 58 | return new SkImageDecoder_iOS; |
| michael@0 | 59 | } |
| michael@0 | 60 | |
| michael@0 | 61 | SkMovie* SkMovie::DecodeStream(SkStreamRewindable* stream) { |
| michael@0 | 62 | return NULL; |
| michael@0 | 63 | } |
| michael@0 | 64 | |
| michael@0 | 65 | SkImageEncoder* SkImageEncoder::Create(Type t) { |
| michael@0 | 66 | return NULL; |
| michael@0 | 67 | } |
| michael@0 | 68 |
