mirror of https://github.com/axmolengine/axmol.git
135 lines
4.8 KiB
Plaintext
135 lines
4.8 KiB
Plaintext
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2013-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#import "platform/CCImage.h"
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#import "platform/CCCommon.h"
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#import <string>
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#import <Foundation/Foundation.h>
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#import <UIKit/UIKit.h>
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#include <math.h>
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NS_CC_BEGIN
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bool cocos2d::Image::saveToFile(const std::string& filename, bool isToRGB)
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{
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//only support for backend::PixelFormat::RGB8 or backend::PixelFormat::RGBA8 uncompressed data
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if (isCompressed() || (_pixelFormat != backend::PixelFormat::RGB8 && _pixelFormat != backend::PixelFormat::RGBA8))
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{
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CCLOG("cocos2d: Image: saveToFile is only support for backend::PixelFormat::RGB8 or backend::PixelFormat::RGBA8 uncompressed data for now");
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return false;
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}
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bool saveToPNG = false;
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bool needToCopyPixels = false;
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std::string basename(filename);
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std::transform(basename.begin(), basename.end(), basename.begin(), ::tolower);
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if (std::string::npos != basename.find(".png"))
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{
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saveToPNG = true;
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}
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int bitsPerComponent = 8;
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int bitsPerPixel = hasAlpha() ? 32 : 24;
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if ((! saveToPNG) || isToRGB)
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{
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bitsPerPixel = 24;
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}
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int bytesPerRow = (bitsPerPixel/8) * _width;
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int myDataLength = bytesPerRow * _height;
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unsigned char *pixels = _data;
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// The data has alpha channel, and want to save it with an RGB png file,
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// or want to save as jpg, remove the alpha channel.
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if (hasAlpha() && bitsPerPixel == 24)
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{
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pixels = new (std::nothrow) unsigned char[myDataLength];
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for (int i = 0; i < _height; ++i)
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{
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for (int j = 0; j < _width; ++j)
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{
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pixels[(i * _width + j) * 3] = _data[(i * _width + j) * 4];
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pixels[(i * _width + j) * 3 + 1] = _data[(i * _width + j) * 4 + 1];
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pixels[(i * _width + j) * 3 + 2] = _data[(i * _width + j) * 4 + 2];
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}
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}
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needToCopyPixels = true;
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}
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// make data provider with data.
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CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
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if (saveToPNG && hasAlpha() && (! isToRGB))
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{
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if (_hasPremultipliedAlpha)
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{
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bitmapInfo |= kCGImageAlphaPremultipliedLast;
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}
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else
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{
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bitmapInfo |= kCGImageAlphaLast;
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}
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}
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CGDataProviderRef provider = CGDataProviderCreateWithData(nullptr, pixels, myDataLength, nullptr);
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CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
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CGImageRef iref = CGImageCreate(_width, _height,
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bitsPerComponent, bitsPerPixel, bytesPerRow,
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colorSpaceRef, bitmapInfo, provider,
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nullptr, false,
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kCGRenderingIntentDefault);
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UIImage* image = [[UIImage alloc] initWithCGImage:iref];
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CGImageRelease(iref);
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CGColorSpaceRelease(colorSpaceRef);
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CGDataProviderRelease(provider);
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// NOTE: Prevent memory leak. Requires ARC enabled.
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@autoreleasepool {
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NSData *data;
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if (saveToPNG) {
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data = UIImagePNGRepresentation(image);
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} else {
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data = UIImageJPEGRepresentation(image, 1.0f);
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}
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[data writeToFile:[NSString stringWithUTF8String:filename.c_str()] atomically:YES];
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}
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[image release];
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if (needToCopyPixels)
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{
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delete [] pixels;
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}
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return true;
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}
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NS_CC_END
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