upng.h

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#ifndef __UPNG_H__
#define __UPNG_H__
 
#include <stdint.h>
#include <stddef.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum upng_error {
    UPNG_EOK            = 0,
    UPNG_ENOMEM         = 1,
    UPNG_ENOTFOUND      = 2,
    UPNG_ENOTPNG        = 3,
    UPNG_EMALFORMED     = 4,
    UPNG_EUNSUPPORTED   = 5,
    UPNG_EUNINTERLACED  = 6,
    UPNG_EUNFORMAT      = 7,
    UPNG_EPARAM         = 8
} upng_error;
 
typedef enum upng_format {
    UPNG_BADFORMAT,
    UPNG_RGB8,
    UPNG_RGBA8,
    UPNG_LUMINANCE1,
    UPNG_LUMINANCE2,
    UPNG_LUMINANCE4,
    UPNG_LUMINANCE8,
    UPNG_LUMINANCE_ALPHA1,
    UPNG_LUMINANCE_ALPHA2,
    UPNG_LUMINANCE_ALPHA4,
    UPNG_LUMINANCE_ALPHA8
} upng_format;
 
typedef struct upng_t upng_t;
 
upng_t*         upng_new_from_bytes (const unsigned char* buffer, unsigned long size);
void            upng_free           (upng_t* upng);
 
upng_error      upng_header         (upng_t* upng);
upng_error      upng_decode         (upng_t* upng);
 
upng_error      upng_get_error      (const upng_t* upng);
unsigned int    upng_get_error_line (const upng_t* upng);
 
unsigned int    upng_get_width      (const upng_t* upng);
unsigned int    upng_get_height     (const upng_t* upng);
unsigned int    upng_get_bpp        (const upng_t* upng);
unsigned int    upng_get_bitdepth   (const upng_t* upng);
unsigned int    upng_get_components (const upng_t* upng);
unsigned int    upng_get_pixelsize  (const upng_t* upng);
upng_format     upng_get_format     (const upng_t* upng);
 
const unsigned char*    upng_get_buffer     (const upng_t* upng);
unsigned int            upng_get_size       (const upng_t* upng);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __UPNG_H__ */