mirror of https://github.com/axmolengine/axmol.git
585 lines
18 KiB
Plaintext
585 lines
18 KiB
Plaintext
/****************************************************************************
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Copyright (c) 2010 cocos2d-x.org
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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 "CCImage.h"
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#import "CCFileUtils.h"
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#import "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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typedef struct
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{
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unsigned int height;
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unsigned int width;
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int bitsPerComponent;
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bool hasAlpha;
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bool isPremultipliedAlpha;
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unsigned char* data;
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} tImageInfo;
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static bool _initWithImage(CGImageRef cgImage, tImageInfo *pImageinfo)
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{
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if(cgImage == NULL)
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{
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return false;
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}
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// get image info
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pImageinfo->width = CGImageGetWidth(cgImage);
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pImageinfo->height = CGImageGetHeight(cgImage);
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CGImageAlphaInfo info = CGImageGetAlphaInfo(cgImage);
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pImageinfo->hasAlpha = (info == kCGImageAlphaPremultipliedLast)
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|| (info == kCGImageAlphaPremultipliedFirst)
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|| (info == kCGImageAlphaLast)
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|| (info == kCGImageAlphaFirst);
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CGColorSpaceRef colorSpace = CGImageGetColorSpace(cgImage);
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if (colorSpace)
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{
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if (pImageinfo->hasAlpha)
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{
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info = kCGImageAlphaPremultipliedLast;
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pImageinfo->isPremultipliedAlpha = true;
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}
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else
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{
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info = kCGImageAlphaNoneSkipLast;
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pImageinfo->isPremultipliedAlpha = false;
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}
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}
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else
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{
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return false;
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}
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// change to RGBA8888
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pImageinfo->hasAlpha = true;
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pImageinfo->bitsPerComponent = 8;
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pImageinfo->data = new unsigned char[pImageinfo->width * pImageinfo->height * 4];
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colorSpace = CGColorSpaceCreateDeviceRGB();
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CGContextRef context = CGBitmapContextCreate(pImageinfo->data,
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pImageinfo->width,
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pImageinfo->height,
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8,
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4 * pImageinfo->width,
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colorSpace,
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info | kCGBitmapByteOrder32Big);
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CGContextClearRect(context, CGRectMake(0, 0, pImageinfo->width, pImageinfo->height));
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//CGContextTranslateCTM(context, 0, 0);
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CGContextDrawImage(context, CGRectMake(0, 0, pImageinfo->width, pImageinfo->height), cgImage);
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CGContextRelease(context);
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CFRelease(colorSpace);
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return true;
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}
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static bool _initWithFile(const char* path, tImageInfo *pImageinfo)
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{
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CGImageRef CGImage;
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UIImage *jpg;
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UIImage *png;
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bool ret;
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// convert jpg to png before loading the texture
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NSString *fullPath = [NSString stringWithUTF8String:path];
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jpg = [[UIImage alloc] initWithContentsOfFile: fullPath];
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png = [[UIImage alloc] initWithData:UIImagePNGRepresentation(jpg)];
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CGImage = png.CGImage;
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ret = _initWithImage(CGImage, pImageinfo);
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[png release];
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[jpg release];
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return ret;
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}
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static bool _initWithData(void * pBuffer, int length, tImageInfo *pImageinfo)
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{
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bool ret = false;
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if (pBuffer)
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{
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CGImageRef CGImage;
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NSData *data;
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data = [NSData dataWithBytes:pBuffer length:length];
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CGImage = [[UIImage imageWithData:data] CGImage];
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ret = _initWithImage(CGImage, pImageinfo);
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}
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return ret;
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}
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static bool _isValidFontName(const char *fontName)
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{
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bool ret = false;
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NSString *fontNameNS = [NSString stringWithUTF8String:fontName];
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for (NSString *familiName in [UIFont familyNames])
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{
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if ([familiName isEqualToString:fontNameNS])
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{
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ret = true;
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goto out;
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}
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for(NSString *font in [UIFont fontNamesForFamilyName: familiName])
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{
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if ([font isEqualToString: fontNameNS])
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{
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ret = true;
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goto out;
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}
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}
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}
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out:
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return ret;
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}
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static CGSize _calculateStringSize(NSString *str, id font, CGSize *constrainSize)
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{
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NSArray *listItems = [str componentsSeparatedByString: @"\n"];
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CGSize dim = CGSizeZero;
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CGSize textRect = CGSizeZero;
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textRect.width = constrainSize->width > 0 ? constrainSize->width
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: 0x7fffffff;
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textRect.height = constrainSize->height > 0 ? constrainSize->height
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: 0x7fffffff;
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for (NSString *s in listItems)
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{
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CGSize tmp = [s sizeWithFont:font constrainedToSize:textRect];
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if (tmp.width > dim.width)
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{
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dim.width = tmp.width;
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}
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dim.height += tmp.height;
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}
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return dim;
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}
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// refer CCImage::ETextAlign
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#define ALIGN_TOP 1
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#define ALIGN_CENTER 3
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#define ALIGN_BOTTOM 2
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static bool _initWithString(const char * pText, cocos2d::CCImage::ETextAlign eAlign, const char * pFontName, int nSize, tImageInfo* pInfo)
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{
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bool bRet = false;
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do
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{
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CC_BREAK_IF(! pText || ! pInfo);
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NSString * str = [NSString stringWithUTF8String:pText];
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NSString * fntName = [NSString stringWithUTF8String:pFontName];
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CGSize dim, constrainSize;
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constrainSize.width = pInfo->width;
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constrainSize.height = pInfo->height;
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// On iOS custom fonts must be listed beforehand in the App info.plist (in order to be usable) and referenced only the by the font family name itself when
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// calling [UIFont fontWithName]. Therefore even if the developer adds 'SomeFont.ttf' or 'fonts/SomeFont.ttf' to the App .plist, the font must
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// be referenced as 'SomeFont' when calling [UIFont fontWithName]. Hence we strip out the folder path components and the extension here in order to get just
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// the font family name itself. This stripping step is required especially for references to user fonts stored in CCB files; CCB files appear to store
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// the '.ttf' extensions when referring to custom fonts.
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fntName = [[fntName lastPathComponent] stringByDeletingPathExtension];
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// create the font
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id font = [UIFont fontWithName:fntName size:nSize];
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if (font)
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{
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dim = _calculateStringSize(str, font, &constrainSize);
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}
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else
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{
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CCLOGERROR("Error! Failed to load the font '%s'! A default system font will be used instead.", pFontName);
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// Try this font first
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font = [UIFont fontWithName: @"MarkerFelt-Wide" size:nSize];
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if (!font)
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{
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// If that fails then just try a plain system font
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font = [UIFont systemFontOfSize:nSize];
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}
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if (font)
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{
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dim = _calculateStringSize(str, font, &constrainSize);
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}
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}
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CC_BREAK_IF(! font);
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// compute start point
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int startH = 0;
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if (constrainSize.height > dim.height)
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{
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// vertical alignment
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unsigned int vAlignment = (eAlign >> 4) & 0x0F;
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if (vAlignment == ALIGN_TOP)
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{
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startH = 0;
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}
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else if (vAlignment == ALIGN_CENTER)
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{
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startH = (constrainSize.height - dim.height) / 2;
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}
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else
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{
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startH = constrainSize.height - dim.height;
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}
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}
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// adjust text rect
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if (constrainSize.width > 0 && constrainSize.width > dim.width)
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{
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dim.width = constrainSize.width;
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}
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if (constrainSize.height > 0 && constrainSize.height > dim.height)
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{
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dim.height = constrainSize.height;
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}
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unsigned char* data = new unsigned char[(int)(dim.width * dim.height * 4)];
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memset(data, 0, (int)(dim.width * dim.height * 4));
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// draw text
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CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
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CGContextRef context = CGBitmapContextCreate(data, dim.width, dim.height, 8, dim.width * 4, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);
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CGColorSpaceRelease(colorSpace);
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if (! context)
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{
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delete[] data;
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break;
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}
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CGContextSetRGBFillColor(context, 1, 1, 1, 1);
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CGContextTranslateCTM(context, 0.0f, dim.height);
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CGContextScaleCTM(context, 1.0f, -1.0f); //NOTE: NSString draws in UIKit referential i.e. renders upside-down compared to CGBitmapContext referential
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UIGraphicsPushContext(context);
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// measure text size with specified font and determine the rectangle to draw text in
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unsigned uHoriFlag = eAlign & 0x0f;
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UITextAlignment align = (UITextAlignment)((2 == uHoriFlag) ? UITextAlignmentRight
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: (3 == uHoriFlag) ? UITextAlignmentCenter
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: UITextAlignmentLeft);
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// normal fonts
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/*
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if( [font isKindOfClass:[UIFont class] ] )
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{
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[str drawInRect:CGRectMake(0, startH, dim.width, dim.height) withFont:font lineBreakMode:(UILineBreakMode)UILineBreakModeWordWrap alignment:align];
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}
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else // ZFont class
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{
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[FontLabelStringDrawingHelper drawInRect:str rect:CGRectMake(0, startH, dim.width, dim.height) withZFont:font lineBreakMode:(UILineBreakMode)UILineBreakModeWordWrap alignment:align];
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}
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*/
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[str drawInRect:CGRectMake(0, startH, dim.width, dim.height) withFont:font lineBreakMode:(UILineBreakMode)UILineBreakModeWordWrap alignment:align];
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UIGraphicsPopContext();
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CGContextRelease(context);
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// output params
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pInfo->data = data;
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pInfo->hasAlpha = true;
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pInfo->isPremultipliedAlpha = true;
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pInfo->bitsPerComponent = 8;
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pInfo->width = dim.width;
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pInfo->height = dim.height;
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bRet = true;
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} while (0);
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return bRet;
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}
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NS_CC_BEGIN
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CCImage::CCImage()
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: m_nWidth(0)
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, m_nHeight(0)
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, m_nBitsPerComponent(0)
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, m_pData(0)
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, m_bHasAlpha(false)
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, m_bPreMulti(false)
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{
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}
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CCImage::~CCImage()
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{
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CC_SAFE_DELETE_ARRAY(m_pData);
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}
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bool CCImage::initWithImageFile(const char * strPath, EImageFormat eImgFmt/* = eFmtPng*/)
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{
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bool bRet = false;
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unsigned long nSize = 0;
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unsigned char* pBuffer = CCFileUtils::sharedFileUtils()->getFileData(
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CCFileUtils::sharedFileUtils()->fullPathForFilename(strPath).c_str(),
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"rb",
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&nSize);
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if (pBuffer != NULL && nSize > 0)
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{
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bRet = initWithImageData(pBuffer, nSize, eImgFmt);
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}
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CC_SAFE_DELETE_ARRAY(pBuffer);
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return bRet;
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}
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bool CCImage::initWithImageFileThreadSafe(const char *fullpath, EImageFormat imageType)
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{
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/*
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* CCFileUtils::fullPathFromRelativePath() is not thread-safe, it use autorelease().
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*/
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bool bRet = false;
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unsigned long nSize = 0;
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unsigned char* pBuffer = CCFileUtils::sharedFileUtils()->getFileData(fullpath, "rb", &nSize);
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if (pBuffer != NULL && nSize > 0)
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{
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bRet = initWithImageData(pBuffer, nSize, imageType);
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}
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CC_SAFE_DELETE_ARRAY(pBuffer);
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return bRet;
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}
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bool CCImage::initWithImageData(void * pData,
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int nDataLen,
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EImageFormat eFmt,
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int nWidth,
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int nHeight,
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int nBitsPerComponent)
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{
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bool bRet = false;
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tImageInfo info = {0};
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do
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{
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CC_BREAK_IF(! pData || nDataLen <= 0);
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if (eFmt == kFmtRawData)
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{
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bRet = _initWithRawData(pData, nDataLen, nWidth, nHeight, nBitsPerComponent);
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}
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else if (eFmt == kFmtWebp)
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{
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bRet = _initWithWebpData(pData, nDataLen);
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}
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else // init with png or jpg file data
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{
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bRet = _initWithData(pData, nDataLen, &info);
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if (bRet)
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{
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m_nHeight = (short)info.height;
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m_nWidth = (short)info.width;
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m_nBitsPerComponent = info.bitsPerComponent;
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m_bHasAlpha = info.hasAlpha;
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m_bPreMulti = info.isPremultipliedAlpha;
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m_pData = info.data;
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}
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}
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} while (0);
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return bRet;
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}
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bool CCImage::_initWithRawData(void *pData, int nDatalen, int nWidth, int nHeight, int nBitsPerComponent)
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{
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bool bRet = false;
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do
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{
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CC_BREAK_IF(0 == nWidth || 0 == nHeight);
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m_nBitsPerComponent = nBitsPerComponent;
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m_nHeight = (short)nHeight;
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m_nWidth = (short)nWidth;
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m_bHasAlpha = true;
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// only RGBA8888 supported
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int nBytesPerComponent = 4;
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int nSize = nHeight * nWidth * nBytesPerComponent;
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m_pData = new unsigned char[nSize];
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CC_BREAK_IF(! m_pData);
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memcpy(m_pData, pData, nSize);
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bRet = true;
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} while (0);
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return bRet;
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}
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bool CCImage::_initWithJpgData(void *pData, int nDatalen)
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{
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assert(0);
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return false;
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}
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bool CCImage::_initWithPngData(void *pData, int nDatalen)
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{
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assert(0);
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return false;
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}
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bool CCImage::_saveImageToPNG(const char *pszFilePath, bool bIsToRGB)
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{
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assert(0);
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return false;
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}
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bool CCImage::_saveImageToJPG(const char *pszFilePath)
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{
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assert(0);
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return false;
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}
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bool CCImage::initWithString(
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const char * pText,
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int nWidth /* = 0 */,
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int nHeight /* = 0 */,
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ETextAlign eAlignMask /* = kAlignCenter */,
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const char * pFontName /* = nil */,
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int nSize /* = 0 */)
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{
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tImageInfo info = {0};
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info.width = nWidth;
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info.height = nHeight;
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if (! _initWithString(pText, eAlignMask, pFontName, nSize, &info))
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{
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return false;
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}
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m_nHeight = (short)info.height;
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m_nWidth = (short)info.width;
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m_nBitsPerComponent = info.bitsPerComponent;
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m_bHasAlpha = info.hasAlpha;
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m_bPreMulti = info.isPremultipliedAlpha;
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m_pData = info.data;
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return true;
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}
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bool CCImage::saveToFile(const char *pszFilePath, bool bIsToRGB)
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{
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bool saveToPNG = false;
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bool needToCopyPixels = false;
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std::string filePath(pszFilePath);
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if (std::string::npos != filePath.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 = m_bHasAlpha ? 32 : 24;
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if ((! saveToPNG) || bIsToRGB)
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{
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bitsPerPixel = 24;
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}
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int bytesPerRow = (bitsPerPixel/8) * m_nWidth;
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int myDataLength = bytesPerRow * m_nHeight;
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unsigned char *pixels = m_pData;
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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 ((saveToPNG && m_bHasAlpha && bIsToRGB)
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|| (! saveToPNG))
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{
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pixels = new unsigned char[myDataLength];
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for (int i = 0; i < m_nHeight; ++i)
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{
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for (int j = 0; j < m_nWidth; ++j)
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{
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pixels[(i * m_nWidth + j) * 3] = m_pData[(i * m_nWidth + j) * 4];
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pixels[(i * m_nWidth + j) * 3 + 1] = m_pData[(i * m_nWidth + j) * 4 + 1];
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pixels[(i * m_nWidth + j) * 3 + 2] = m_pData[(i * m_nWidth + j) * 4 + 2];
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}
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}
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needToCopyPixels = true;
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}
|
|
|
|
// make data provider with data.
|
|
CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
|
|
if (saveToPNG && m_bHasAlpha && (! bIsToRGB))
|
|
{
|
|
bitmapInfo |= kCGImageAlphaPremultipliedLast;
|
|
}
|
|
CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, pixels, myDataLength, NULL);
|
|
CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
|
|
CGImageRef iref = CGImageCreate(m_nWidth, m_nHeight,
|
|
bitsPerComponent, bitsPerPixel, bytesPerRow,
|
|
colorSpaceRef, bitmapInfo, provider,
|
|
NULL, false,
|
|
kCGRenderingIntentDefault);
|
|
|
|
UIImage* image = [[UIImage alloc] initWithCGImage:iref];
|
|
|
|
CGImageRelease(iref);
|
|
CGColorSpaceRelease(colorSpaceRef);
|
|
CGDataProviderRelease(provider);
|
|
|
|
NSData *data;
|
|
|
|
if (saveToPNG)
|
|
{
|
|
data = UIImagePNGRepresentation(image);
|
|
}
|
|
else
|
|
{
|
|
data = UIImageJPEGRepresentation(image, 1.0f);
|
|
}
|
|
|
|
[data writeToFile:[NSString stringWithUTF8String:pszFilePath] atomically:YES];
|
|
|
|
[image release];
|
|
|
|
if (needToCopyPixels)
|
|
{
|
|
delete [] pixels;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
NS_CC_END
|
|
|