wbmp.h
资源名称:gateway-1.2.1 [点击查看]
上传用户:gzpyjq
上传日期:2013-01-31
资源大小:1852k
文件大小:2k
源码类别:
手机WAP编程
开发平台:
WINDOWS
- #ifndef WBMP_H
- #define WBMP_H
- /* WBMP - Wireless Bitmap
- *
- * Kalle Marjola 1999 for WapIT Ltd.
- *
- * functions to store WBMPs and and create Octet strings from them
- */
- #include "gwlib/gwlib.h"
- /* extension header parameters... not implemented/supported in any WBMP
- * yet... but for future reference, although I'm quite sure there is
- * something wrong in these...
- */
- typedef struct extparam {
- Octet bitfield; /* if bitfield additional data */
- /* or */
- char param[9]; /* parameter */
- char value[17]; /* and associated value */
- } ExtParam;
- /* WBMP - wireless bitmap format
- *
- * structure to define wireless bitmap - not complete!
- */
- typedef struct wbmp {
- MultibyteInt type_field;
- Octet fix_header_field;
- /* extension header is a bit more complicated thing that what is
- * represented here but the spesification is a bit obfuscated one
- * and they are not yet used to anything, so it is left undefined
- */
- ExtParam *ext_header_field;
- int exthdr_count; /* total # of ext headers */
- MultibyteInt width;
- MultibyteInt height;
- Octet *main_image;
- Octet **animated_image;
- int animimg_count; /* total # of animated images */
- } WBMP;
- /* create a new empty WBMP struct. Return a pointer to it or NULL if
- * operation fails
- */
- WBMP *wbmp_create_empty(void);
- /* delete given WBMP, including freeing the pixmap */
- void wbmp_delete(WBMP *pic);
- #define NEGATIVE 1 /* source has white=0, black=1 */
- #define REVERSE 2 /* source has righmost as most significant */
- /* create a new bitmap
- *
- * type: 0 (B/W, Uncompressed bitmap) WBMP - the only type currently
- * specificated.
- *
- * width and height are size of the bitmap,
- * data is the entire bitmap; from left-top corner to righ-bottom;
- * if the width is not dividable by 8, the rest of the row is padded with
- * zeros. bytes are ordered big-endian
- *
- * target: black=0, white=1, most significant leftmost
- *
- * You can generate raw bitmap in Linux (RH 6.0) with following line:
- * %> convert -monochrome input_file target.mono
- *
- * ..which then requires flags REVERSE and NEGATIVE
- *
- * return pointer to created WBMP, or NULL if fails
- */
- WBMP *wbmp_create(int type, int width, int height, Octet *data, int flags);
- /* create Octet stream out of given WBMP
- * return the length of stream, *stream is set to new stream which must
- * be freed by the caller
- */
- int wbmp_create_stream(WBMP *pic, Octet **stream);
- #endif