axmol/core/base/TGAlib.h

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

https://adxeproject.github.io/

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#ifndef __SUPPORT_DATA_SUPPORT_TGALIB_H__
#define __SUPPORT_DATA_SUPPORT_TGALIB_H__
/// @cond DO_NOT_SHOW

#include "stdint.h"

namespace cocos2d
{

enum
{
    TGA_OK,
    TGA_ERROR_FILE_OPEN,
    TGA_ERROR_READING_FILE,
    TGA_ERROR_INDEXED_COLOR,
    TGA_ERROR_MEMORY,
    TGA_ERROR_COMPRESSED_FILE,
};

/** TGA format */
typedef struct sImageTGA
{
    int status;
    unsigned char type, pixelDepth;

    /** map width */
    signed short width;

    /** map height */
    signed short height;

    /** raw data */
    unsigned char* imageData;
    int flipped;
} tImageTGA;

/// load the image header fields. We only keep those that matter!
bool tgaLoadHeader(unsigned char* buffer, uint32_t bufSize, tImageTGA* info);

/// loads the image pixels. You shouldn't call this function directly
bool tgaLoadImageData(unsigned char* buffer, uint32_t bufSize, tImageTGA* info);

/// this is the function to call when we want to load an image buffer.
tImageTGA* tgaLoadBuffer(unsigned char* buffer, int32_t size);

/// this is the function to call when we want to load an image
tImageTGA* tgaLoad(const char* filename);

// /converts RGB to grayscale
void tgaRGBtogreyscale(tImageTGA* info);

/// releases the memory used for the image
void tgaDestroy(tImageTGA* info);

}  // namespace cocos2d

/// @endcond
#endif  // __SUPPORT_DATA_SUPPORT_TGALIB_H__