/**************************************************************************** Copyright (c) 2010 cocos2d-x.org http://www.cocos2d-x.org Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #import "CCImage.h" #import "CCFileUtils.h" #import "CCCommon.h" #import #import #import typedef struct { unsigned int height; unsigned int width; int bitsPerComponent; bool hasAlpha; bool isPremultipliedAlpha; unsigned char* data; } tImageInfo; static bool _initWithImage(CGImageRef cgImage, tImageInfo *pImageinfo) { if(cgImage == NULL) { return false; } // get image info pImageinfo->width = CGImageGetWidth(cgImage); pImageinfo->height = CGImageGetHeight(cgImage); CGImageAlphaInfo info = CGImageGetAlphaInfo(cgImage); pImageinfo->hasAlpha = (info == kCGImageAlphaPremultipliedLast) || (info == kCGImageAlphaPremultipliedFirst) || (info == kCGImageAlphaLast) || (info == kCGImageAlphaFirst); // If OS version < 5.x, add condition to support jpg float systemVersion = [[[UIDevice currentDevice] systemVersion] floatValue]; if(systemVersion < 5.0f) { pImageinfo->hasAlpha = (pImageinfo->hasAlpha || (info == kCGImageAlphaNoneSkipLast)); } CGColorSpaceRef colorSpace = CGImageGetColorSpace(cgImage); if (colorSpace) { if (pImageinfo->hasAlpha) { info = kCGImageAlphaPremultipliedLast; pImageinfo->isPremultipliedAlpha = true; } else { info = kCGImageAlphaNoneSkipLast; pImageinfo->isPremultipliedAlpha = false; } } else { return false; } // change to RGBA8888 pImageinfo->hasAlpha = true; pImageinfo->bitsPerComponent = 8; pImageinfo->data = new unsigned char[pImageinfo->width * pImageinfo->height * 4]; colorSpace = CGColorSpaceCreateDeviceRGB(); CGContextRef context = CGBitmapContextCreate(pImageinfo->data, pImageinfo->width, pImageinfo->height, 8, 4 * pImageinfo->width, colorSpace, info | kCGBitmapByteOrder32Big); CGContextClearRect(context, CGRectMake(0, 0, pImageinfo->width, pImageinfo->height)); //CGContextTranslateCTM(context, 0, 0); CGContextDrawImage(context, CGRectMake(0, 0, pImageinfo->width, pImageinfo->height), cgImage); CGContextRelease(context); CFRelease(colorSpace); return true; } static bool _initWithFile(const char* path, tImageInfo *pImageinfo) { CGImageRef CGImage; UIImage *jpg; UIImage *png; bool ret; // convert jpg to png before loading the texture NSString *fullPath = [NSString stringWithUTF8String:path]; jpg = [[UIImage alloc] initWithContentsOfFile: fullPath]; png = [[UIImage alloc] initWithData:UIImagePNGRepresentation(jpg)]; CGImage = png.CGImage; ret = _initWithImage(CGImage, pImageinfo); [png release]; [jpg release]; return ret; } static bool _initWithData(void * pBuffer, int length, tImageInfo *pImageinfo) { bool ret = false; if (pBuffer) { CGImageRef CGImage; NSData *data; data = [NSData dataWithBytes:pBuffer length:length]; CGImage = [[UIImage imageWithData:data] CGImage]; ret = _initWithImage(CGImage, pImageinfo); } return ret; } static CGSize _calculateStringSize(NSString *str, id font, CGSize *constrainSize) { NSArray *listItems = [str componentsSeparatedByString: @"\n"]; CGSize dim = CGSizeZero; CGSize textRect = CGSizeZero; textRect.width = constrainSize->width > 0 ? constrainSize->width : 0x7fffffff; textRect.height = constrainSize->height > 0 ? constrainSize->height : 0x7fffffff; for (NSString *s in listItems) { CGSize tmp = [s sizeWithFont:font constrainedToSize:textRect]; if (tmp.width > dim.width) { dim.width = tmp.width; } dim.height += tmp.height; } return dim; } // refer CCImage::ETextAlign #define ALIGN_TOP 1 #define ALIGN_CENTER 3 #define ALIGN_BOTTOM 2 static bool _initWithString(const char * pText, cocos2d::CCImage::ETextAlign eAlign, const char * pFontName, int nSize, tImageInfo* pInfo) { bool bRet = false; do { CC_BREAK_IF(! pText || ! pInfo); NSString * str = [NSString stringWithUTF8String:pText]; NSString * fntName = [NSString stringWithUTF8String:pFontName]; CGSize dim, constrainSize; constrainSize.width = pInfo->width; constrainSize.height = pInfo->height; // 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 // calling [UIFont fontWithName]. Therefore even if the developer adds 'SomeFont.ttf' or 'fonts/SomeFont.ttf' to the App .plist, the font must // 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 // 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 // the '.ttf' extensions when referring to custom fonts. fntName = [[fntName lastPathComponent] stringByDeletingPathExtension]; // create the font id font = [UIFont fontWithName:fntName size:nSize]; if (font) { dim = _calculateStringSize(str, font, &constrainSize); } else { if (!font) { font = [UIFont systemFontOfSize:nSize]; } if (font) { dim = _calculateStringSize(str, font, &constrainSize); } } CC_BREAK_IF(! font); // compute start point int startH = 0; if (constrainSize.height > dim.height) { // vertical alignment unsigned int vAlignment = (eAlign >> 4) & 0x0F; if (vAlignment == ALIGN_TOP) { startH = 0; } else if (vAlignment == ALIGN_CENTER) { startH = (constrainSize.height - dim.height) / 2; } else { startH = constrainSize.height - dim.height; } } // adjust text rect if (constrainSize.width > 0 && constrainSize.width > dim.width) { dim.width = constrainSize.width; } if (constrainSize.height > 0 && constrainSize.height > dim.height) { dim.height = constrainSize.height; } unsigned char* data = new unsigned char[(int)(dim.width * dim.height * 4)]; memset(data, 0, (int)(dim.width * dim.height * 4)); // draw text CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); CGContextRef context = CGBitmapContextCreate(data, dim.width, dim.height, 8, dim.width * 4, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big); CGColorSpaceRelease(colorSpace); if (! context) { delete[] data; break; } CGContextSetRGBFillColor(context, 1, 1, 1, 1); CGContextTranslateCTM(context, 0.0f, dim.height); CGContextScaleCTM(context, 1.0f, -1.0f); //NOTE: NSString draws in UIKit referential i.e. renders upside-down compared to CGBitmapContext referential UIGraphicsPushContext(context); // measure text size with specified font and determine the rectangle to draw text in unsigned uHoriFlag = eAlign & 0x0f; UITextAlignment align = (UITextAlignment)((2 == uHoriFlag) ? UITextAlignmentRight : (3 == uHoriFlag) ? UITextAlignmentCenter : UITextAlignmentLeft); // normal fonts /* if( [font isKindOfClass:[UIFont class] ] ) { [str drawInRect:CGRectMake(0, startH, dim.width, dim.height) withFont:font lineBreakMode:(UILineBreakMode)UILineBreakModeWordWrap alignment:align]; } else // ZFont class { [FontLabelStringDrawingHelper drawInRect:str rect:CGRectMake(0, startH, dim.width, dim.height) withZFont:font lineBreakMode:(UILineBreakMode)UILineBreakModeWordWrap alignment:align]; } */ [str drawInRect:CGRectMake(0, startH, dim.width, dim.height) withFont:font lineBreakMode:(UILineBreakMode)UILineBreakModeWordWrap alignment:align]; UIGraphicsPopContext(); CGContextRelease(context); // output params pInfo->data = data; pInfo->hasAlpha = true; pInfo->isPremultipliedAlpha = true; pInfo->bitsPerComponent = 8; pInfo->width = dim.width; pInfo->height = dim.height; bRet = true; } while (0); return bRet; } NS_CC_BEGIN CCImage::CCImage() : m_nWidth(0) , m_nHeight(0) , m_nBitsPerComponent(0) , m_pData(0) , m_bHasAlpha(false) , m_bPreMulti(false) { } CCImage::~CCImage() { CC_SAFE_DELETE_ARRAY(m_pData); } bool CCImage::initWithImageFile(const char * strPath, EImageFormat eImgFmt/* = eFmtPng*/) { bool bRet = false; unsigned long nSize = 0; unsigned char* pBuffer = CCFileUtils::sharedFileUtils()->getFileData( CCFileUtils::sharedFileUtils()->fullPathForFilename(strPath).c_str(), "rb", &nSize); if (pBuffer != NULL && nSize > 0) { bRet = initWithImageData(pBuffer, nSize, eImgFmt); } CC_SAFE_DELETE_ARRAY(pBuffer); return bRet; } bool CCImage::initWithImageFileThreadSafe(const char *fullpath, EImageFormat imageType) { /* * CCFileUtils::fullPathFromRelativePath() is not thread-safe, it use autorelease(). */ bool bRet = false; unsigned long nSize = 0; unsigned char* pBuffer = CCFileUtils::sharedFileUtils()->getFileData(fullpath, "rb", &nSize); if (pBuffer != NULL && nSize > 0) { bRet = initWithImageData(pBuffer, nSize, imageType); } CC_SAFE_DELETE_ARRAY(pBuffer); return bRet; } bool CCImage::initWithImageData(void * pData, int nDataLen, EImageFormat eFmt, int nWidth, int nHeight, int nBitsPerComponent) { bool bRet = false; tImageInfo info = {0}; do { CC_BREAK_IF(! pData || nDataLen <= 0); if (eFmt == kFmtRawData) { bRet = _initWithRawData(pData, nDataLen, nWidth, nHeight, nBitsPerComponent); } else if (eFmt == kFmtWebp) { bRet = _initWithWebpData(pData, nDataLen); } else // init with png or jpg file data { bRet = _initWithData(pData, nDataLen, &info); if (bRet) { m_nHeight = (short)info.height; m_nWidth = (short)info.width; m_nBitsPerComponent = info.bitsPerComponent; m_bHasAlpha = info.hasAlpha; m_bPreMulti = info.isPremultipliedAlpha; m_pData = info.data; } } } while (0); return bRet; } bool CCImage::_initWithRawData(void *pData, int nDatalen, int nWidth, int nHeight, int nBitsPerComponent) { bool bRet = false; do { CC_BREAK_IF(0 == nWidth || 0 == nHeight); m_nBitsPerComponent = nBitsPerComponent; m_nHeight = (short)nHeight; m_nWidth = (short)nWidth; m_bHasAlpha = true; // only RGBA8888 supported int nBytesPerComponent = 4; int nSize = nHeight * nWidth * nBytesPerComponent; m_pData = new unsigned char[nSize]; CC_BREAK_IF(! m_pData); memcpy(m_pData, pData, nSize); bRet = true; } while (0); return bRet; } bool CCImage::_initWithJpgData(void *pData, int nDatalen) { assert(0); return false; } bool CCImage::_initWithPngData(void *pData, int nDatalen) { assert(0); return false; } bool CCImage::_saveImageToPNG(const char *pszFilePath, bool bIsToRGB) { assert(0); return false; } bool CCImage::_saveImageToJPG(const char *pszFilePath) { assert(0); return false; } bool CCImage::initWithString( const char * pText, int nWidth /* = 0 */, int nHeight /* = 0 */, ETextAlign eAlignMask /* = kAlignCenter */, const char * pFontName /* = nil */, int nSize /* = 0 */) { tImageInfo info = {0}; info.width = nWidth; info.height = nHeight; if (! _initWithString(pText, eAlignMask, pFontName, nSize, &info)) { return false; } m_nHeight = (short)info.height; m_nWidth = (short)info.width; m_nBitsPerComponent = info.bitsPerComponent; m_bHasAlpha = info.hasAlpha; m_bPreMulti = info.isPremultipliedAlpha; m_pData = info.data; return true; } bool CCImage::saveToFile(const char *pszFilePath, bool bIsToRGB) { bool saveToPNG = false; bool needToCopyPixels = false; std::string filePath(pszFilePath); if (std::string::npos != filePath.find(".png")) { saveToPNG = true; } int bitsPerComponent = 8; int bitsPerPixel = m_bHasAlpha ? 32 : 24; if ((! saveToPNG) || bIsToRGB) { bitsPerPixel = 24; } int bytesPerRow = (bitsPerPixel/8) * m_nWidth; int myDataLength = bytesPerRow * m_nHeight; unsigned char *pixels = m_pData; // The data has alpha channel, and want to save it with an RGB png file, // or want to save as jpg, remove the alpha channel. if ((saveToPNG && m_bHasAlpha && bIsToRGB) || (! saveToPNG)) { pixels = new unsigned char[myDataLength]; for (int i = 0; i < m_nHeight; ++i) { for (int j = 0; j < m_nWidth; ++j) { pixels[(i * m_nWidth + j) * 3] = m_pData[(i * m_nWidth + j) * 4]; pixels[(i * m_nWidth + j) * 3 + 1] = m_pData[(i * m_nWidth + j) * 4 + 1]; pixels[(i * m_nWidth + j) * 3 + 2] = m_pData[(i * m_nWidth + j) * 4 + 2]; } } needToCopyPixels = true; } // 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