mirror of https://github.com/axmolengine/axmol.git
206 lines
8.2 KiB
C++
206 lines
8.2 KiB
C++
/****************************************************************************
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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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#ifndef __CC_IMAGE_H__
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#define __CC_IMAGE_H__
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#include "cocoa/CCObject.h"
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// premultiply alpha, or the effect will wrong when want to use other pixel format in Texture2D,
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// such as RGB888, RGB5A1
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#define CC_RGB_PREMULTIPLY_ALPHA(vr, vg, vb, va) \
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(unsigned)(((unsigned)((unsigned char)(vr) * ((unsigned char)(va) + 1)) >> 8) | \
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((unsigned)((unsigned char)(vg) * ((unsigned char)(va) + 1) >> 8) << 8) | \
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((unsigned)((unsigned char)(vb) * ((unsigned char)(va) + 1) >> 8) << 16) | \
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((unsigned)(unsigned char)(va) << 24))
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NS_CC_BEGIN
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/**
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* @addtogroup platform
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* @{
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*/
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class CC_DLL Image : public Object
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{
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public:
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friend class TextureCache;
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Image();
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virtual ~Image();
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enum Format
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{
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FORMAT_JPG,
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FORMAT_PNG,
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FORMAT_TIFF,
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FORMAT_WEBP,
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FORMAT_RAW_DATA,
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FORMAT_UNKOWN
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};
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typedef enum
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{
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kAlignCenter = 0x33, ///< Horizontal center and vertical center.
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kAlignTop = 0x13, ///< Horizontal center and vertical top.
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kAlignTopRight = 0x12, ///< Horizontal right and vertical top.
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kAlignRight = 0x32, ///< Horizontal right and vertical center.
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kAlignBottomRight = 0x22, ///< Horizontal right and vertical bottom.
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kAlignBottom = 0x23, ///< Horizontal center and vertical bottom.
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kAlignBottomLeft = 0x21, ///< Horizontal left and vertical bottom.
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kAlignLeft = 0x31, ///< Horizontal left and vertical center.
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kAlignTopLeft = 0x11, ///< Horizontal left and vertical top.
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}ETextAlign;
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/**
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@brief Load the image from the specified path.
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@param strPath the absolute file path.
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@param imageType the type of image, currently only supporting two types.
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@return true if loaded correctly.
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*/
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bool initWithImageFile(const char * strPath, Format imageType = FORMAT_PNG);
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/**
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@brief Load image from stream buffer.
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@warning kFmtRawData only supports RGBA8888.
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@param pBuffer stream buffer which holds the image data.
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@param nLength data length expressed in (number of) bytes.
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@param nWidth, nHeight, nBitsPerComponent are used for kFmtRawData.
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@return true if loaded correctly.
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*/
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bool initWithImageData(void * pData,
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int nDataLen,
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Format eFmt = FORMAT_UNKOWN,
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int nWidth = 0,
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int nHeight = 0,
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int nBitsPerComponent = 8);
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// @warning kFmtRawData only support RGBA8888
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bool initWithRawData(void *pData, int nDatalen, int nWidth, int nHeight, int nBitsPerComponent, bool bPreMulti);
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/**
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@brief Create image with specified string.
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@param pText the text the image will show (cannot be nil).
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@param nWidth the image width, if 0, the width will match the text's width.
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@param nHeight the image height, if 0, the height will match the text's height.
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@param eAlignMask the test Alignment
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@param pFontName the name of the font used to draw the text. If nil, use the default system font.
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@param nSize the font size, if 0, use the system default size.
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*/
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bool 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 = 0,
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int nSize = 0);
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#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) || (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
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bool initWithStringShadowStroke(
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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 = 0,
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int nSize = 0,
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float textTintR = 1,
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float textTintG = 1,
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float textTintB = 1,
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bool shadow = false,
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float shadowOffsetX = 0.0,
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float shadowOffsetY = 0.0,
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float shadowOpacity = 0.0,
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float shadowBlur = 0.0,
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bool stroke = false,
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float strokeR = 1,
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float strokeG = 1,
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float strokeB = 1,
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float strokeSize = 1
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);
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#endif
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/**
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@brief Save Image data to the specified file, with specified format.
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@param pszFilePath the file's absolute path, including file suffix.
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@param bIsToRGB whether the image is saved as RGB format.
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*/
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bool saveToFile(const char *pszFilePath, bool bIsToRGB = true);
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// Getters
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inline unsigned char * getData() { return _data; }
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inline int getDataLen() { return _width * _height; }
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inline bool hasAlpha() { return _hasAlpha; }
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inline bool isPremultipliedAlpha() { return _preMulti; }
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inline unsigned short getWidth() { return _width; };
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inline unsigned short getHeight() { return _height; };
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inline int getBitsPerComponent() { return _bitsPerComponent; };
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//
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protected:
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bool _initWithJpgData(void *pData, int nDatalen);
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bool _initWithPngData(void *pData, int nDatalen);
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bool _initWithTiffData(void *pData, int nDataLen);
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bool _initWithWebpData(void *pData, int nDataLen);
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bool _saveImageToPNG(const char *pszFilePath, bool bIsToRGB = true);
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bool _saveImageToJPG(const char *pszFilePath);
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unsigned short _width;
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unsigned short _height;
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int _bitsPerComponent;
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unsigned char *_data;
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bool _hasAlpha;
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bool _preMulti;
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private:
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// noncopyable
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Image(const Image& rImg);
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Image & operator=(const Image&);
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/*
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@brief The same result as with initWithImageFile, but thread safe. It is caused by
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loadImage() in TextureCache.cpp.
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@param fullpath full path of the file.
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@param imageType the type of image, currently only supporting two types.
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@return true if loaded correctly.
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*/
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bool initWithImageFileThreadSafe(const char *fullpath, Format imageType = FORMAT_PNG);
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};
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// end of platform group
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/// @}
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NS_CC_END
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#endif // __CC_IMAGE_H__
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