#ifndef __IMAGE_HH__ #define __IMAGE_HH__ // The DilloImage data-structure and methods #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ #include "bitvec.h" #include "url.h" /* * Defines */ /* Arbitrary maximum for image size (to avoid image size-crafting attacks). */ #define IMAGE_MAX_AREA (6000 * 6000) /* * Types */ typedef struct _DilloImage DilloImage; typedef enum { DILLO_IMG_TYPE_INDEXED, DILLO_IMG_TYPE_RGB, DILLO_IMG_TYPE_GRAY, DILLO_IMG_TYPE_CMYK_INV, DILLO_IMG_TYPE_NOTSET /* Initial value */ } DilloImgType; /* These will reflect the Image's "state" */ typedef enum { IMG_Empty, /* Just created the entry */ IMG_SetParms, /* Parameters set */ IMG_SetCmap, /* Color map set */ IMG_Write, /* Feeding the entry */ IMG_Close, /* Whole image got! */ IMG_Abort /* Image transfer aborted */ } ImageState; struct _DilloImage { void *dw; /* Parameters as told by image data */ uint_t width; uint_t height; int32_t bg_color; /* Background color */ bitvec_t *BitVec; /* Bit vector for decoded rows */ uint_t ScanNumber; /* Current decoding scan */ ImageState State; /* Processing status */ int RefCount; /* Reference counter */ }; /* * Function prototypes */ DilloImage *a_Image_new(const char *alt_text, int32_t bg_color); void a_Image_ref(DilloImage *Image); void a_Image_unref(DilloImage *Image); void a_Image_set_parms(DilloImage *Image, void *v_imgbuf, DilloUrl *url, int version, uint_t width, uint_t height, DilloImgType type); void a_Image_write(DilloImage *Image, uint_t y); void a_Image_close(DilloImage *Image); #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __IMAGE_HH__ */