cocos_lib/cocos/platform/Image.h

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5.2 KiB

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2016-2023 Xiamen Yaji Software Co., Ltd.
http://www.cocos.com
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.
****************************************************************************/
#pragma once
#include "base/RefCounted.h"
#include "base/std/container/string.h"
#include "gfx-base/GFXDef.h"
namespace cc {
class Image : public RefCounted {
public:
Image();
~Image() override;
/** Supported formats for Image */
enum class Format {
//! JPEG
JPG,
//! PNG
PNG,
//! WebP
WEBP,
//! PVR
PVR,
//! ETC
ETC,
//! ETC2
ETC2,
//! ASTC
ASTC,
//! Compressed Data
COMPRESSED,
//! Raw Data
RAW_DATA,
//! Unknown format
UNKNOWN
};
bool initWithImageFile(const ccstd::string &path);
bool initWithImageData(const unsigned char *data, uint32_t dataLen);
// @warning kFmtRawData only support RGBA8888
bool initWithRawData(const unsigned char *data, uint32_t dataLen, int width, int height, int bitsPerComponent, bool preMulti = false);
// data will be free outside.
inline void takeData(unsigned char **outData) {
*outData = _data;
_data = nullptr;
}
// Getters
inline unsigned char *getData() const { return _data; }
inline uint32_t getDataLen() const { return _dataLen; }
inline Format getFileType() const { return _fileType; }
inline gfx::Format getRenderFormat() const { return _renderFormat; }
inline int getWidth() const { return _width; }
inline int getHeight() const { return _height; }
inline ccstd::string getFilePath() const { return _filePath; }
inline bool isCompressed() const { return _isCompressed; }
inline const ccstd::vector<uint32_t> &getMipmapLevelDataSize() const { return _mipmapLevelDataSize; }
/**
@brief Save Image data to the specified file, with specified format.
@param filename the file's absolute path, including file suffix.
@param isToRGB whether the image is saved as RGB format.
*/
bool saveToFile(const std::string &filename, bool isToRGB = true);
protected:
bool initWithJpgData(const unsigned char *data, uint32_t dataLen);
bool initWithPngData(const unsigned char *data, uint32_t dataLen);
#if CC_USE_WEBP
bool initWithWebpData(const unsigned char *data, uint32_t dataLen);
#endif
bool initWithPVRData(const unsigned char *data, uint32_t dataLen);
bool initWithPVRv2Data(const unsigned char *data, uint32_t dataLen);
bool initWithPVRv3Data(const unsigned char *data, uint32_t dataLen);
bool initWithETCData(const unsigned char *data, uint32_t dataLen);
bool initWithETC2Data(const unsigned char *data, uint32_t dataLen);
bool initWithASTCData(const unsigned char *data, uint32_t dataLen);
bool initWithCompressedMipsData(const unsigned char *data, uint32_t dataLen);
bool saveImageToPNG(const std::string &filePath, bool isToRGB = true);
bool saveImageToJPG(const std::string &filePath);
unsigned char *_data = nullptr;
uint32_t _dataLen = 0;
int _width = 0;
int _height = 0;
Format _fileType = Format::UNKNOWN;
gfx::Format _renderFormat;
ccstd::string _filePath;
bool _isCompressed = false;
ccstd::vector<uint32_t> _mipmapLevelDataSize;
static Format detectFormat(const unsigned char *data, uint32_t dataLen);
static bool isPng(const unsigned char *data, uint32_t dataLen);
static bool isJpg(const unsigned char *data, uint32_t dataLen);
static bool isWebp(const unsigned char *data, uint32_t dataLen);
static bool isPvr(const unsigned char *data, uint32_t dataLen);
static bool isEtc(const unsigned char *data, uint32_t dataLen);
static bool isEtc2(const unsigned char *data, uint32_t dataLen);
static bool isASTC(const unsigned char *data, uint32_t detaLen);
static bool isCompressed(const unsigned char *data, uint32_t detaLen);
static gfx::Format getASTCFormat(const unsigned char *pHeader);
friend class ImageUtils;
};
} //namespace cc