1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/utils/ios/SkImageDecoder_iOS.mm Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,68 @@
1.4 +/*
1.5 + * Copyright 2010 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#import <CoreGraphics/CoreGraphics.h>
1.12 +#include <CoreGraphics/CGColorSpace.h>
1.13 +#import <UIKit/UIKit.h>
1.14 +
1.15 +#include "SkImageDecoder.h"
1.16 +#include "SkImageEncoder.h"
1.17 +#include "SkMovie.h"
1.18 +#include "SkStream_NSData.h"
1.19 +
1.20 +class SkImageDecoder_iOS : public SkImageDecoder {
1.21 +protected:
1.22 + virtual bool onDecode(SkStream* stream, SkBitmap* bm, Mode);
1.23 +};
1.24 +
1.25 +#define BITMAP_INFO (kCGBitmapByteOrder32Big | kCGImageAlphaPremultipliedLast)
1.26 +
1.27 +bool SkImageDecoder_iOS::onDecode(SkStream* stream, SkBitmap* bm, Mode mode) {
1.28 +
1.29 + NSData* data = NSData_dataWithStream(stream);
1.30 +
1.31 + UIImage* uimage = [UIImage imageWithData:data];
1.32 +
1.33 + const int width = uimage.size.width;
1.34 + const int height = uimage.size.height;
1.35 + bm->setConfig(SkBitmap::kARGB_8888_Config, width, height);
1.36 + if (SkImageDecoder::kDecodeBounds_Mode == mode) {
1.37 + return true;
1.38 + }
1.39 +
1.40 + if (!this->allocPixelRef(bm, NULL)) {
1.41 + return false;
1.42 + }
1.43 +
1.44 + bm->lockPixels();
1.45 + bm->eraseColor(0);
1.46 +
1.47 + CGColorSpaceRef cs = CGColorSpaceCreateDeviceRGB();
1.48 + CGContextRef cg = CGBitmapContextCreate(bm->getPixels(), width, height,
1.49 + 8, bm->rowBytes(), cs, BITMAP_INFO);
1.50 + CGContextDrawImage(cg, CGRectMake(0, 0, width, height), uimage.CGImage);
1.51 + CGContextRelease(cg);
1.52 + CGColorSpaceRelease(cs);
1.53 +
1.54 + bm->unlockPixels();
1.55 + return true;
1.56 +}
1.57 +
1.58 +/////////////////////////////////////////////////////////////////////////
1.59 +
1.60 +SkImageDecoder* SkImageDecoder::Factory(SkStreamRewindable* stream) {
1.61 + return new SkImageDecoder_iOS;
1.62 +}
1.63 +
1.64 +SkMovie* SkMovie::DecodeStream(SkStreamRewindable* stream) {
1.65 + return NULL;
1.66 +}
1.67 +
1.68 +SkImageEncoder* SkImageEncoder::Create(Type t) {
1.69 + return NULL;
1.70 +}
1.71 +
