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#ifndef _RAD_BMPFILE_H_ |
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#define _RAD_BMPFILE_H_ |
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#include "tifftypes.h" |
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#include "tiff.h" /* needed for int32, etc. */ |
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#ifdef __cplusplus |
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extern "C" { |
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/* Allocated BMP header data */ |
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typedef struct { |
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/* the following fields may be altered before open call */ |
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/* the following fields may be altered before the open call */ |
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int yIsDown; /* scanlines proceed downward? */ |
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int32 hRes; /* horizontal resolution pixels/meter */ |
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int32 vRes; /* vertical resolution pixels/meter */ |
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int nColors; /* total color palette size */ |
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int impColors; /* number of colors actually used */ |
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/* the following fields should not be altered after allocation */ |
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int compr; /* compression */ |
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int32 width; /* bitmap width (pixels) */ |
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int32 height; /* bitmap height (pixels) */ |
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/* the following fields must not be altered after allocation */ |
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int bpp; /* bits per sample (1,4,8,16,24,32) */ |
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int compr; /* compression */ |
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uint32 infoSiz; /* info buffer size (bytes) */ |
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/* the color table should be filled by writer before open call */ |
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/* but the color table should be filled by writer before open call */ |
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RGBquad palette[3]; /* color palette (extends struct) */ |
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} BMPHeader; |
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/* color palette length */ |
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#define BMPpalLen(h) ((h)->bpp <= 8 ? 1<<(h)->bpp : 0) |
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/* access to bit field triple */ |
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#define BMPbitField(h) ((uint32 *)(h)->palette) |
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/* info buffer access */ |
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#define BMPinfo(h) ((char *)((h)->palette + BMPpalLen(h))) |
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#define BMPinfo(h) ((char *)((h)->palette + (h)->nColors)) |
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/* function return values */ |
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#define BIR_OK 0 /* all is well */ |
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typedef struct { |
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/* the scanline data is filled in by caller before each write */ |
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uint8 *scanline; /* caller-prepared scanline data */ |
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/* modify yscan only if seek is defined & data is uncompressed */ |
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int yscan; /* scanline for next write */ |
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/* the following fields should not be altered by the caller */ |
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/* the following fields should not be altered directly */ |
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BMPHeader *hdr; /* allocated header */ |
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uint32 fbmp; /* beginning of bitmap data */ |
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uint32 fpos; /* current file position */ |
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/* open input file */ |
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#define BMPopenInputFile(fn) BMPopenReader(&stdio_getc, &stdio_fseek, \ |
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(void *)fopen(fn, "r")) |
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(void *)fopen(fn, "rb")) |
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/* close stdio input file or stream */ |
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#define BMPcloseInput(br) ( fclose((FILE *)(br)->c_data), \ |
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/* open stdio output file */ |
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#define BMPopenOutputFile(fn,hdr) \ |
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BMPopenWriter(&stdio_putc, &stdio_fseek, \ |
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(void *)fopen(fn, "w"), hdr) |
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(void *)fopen(fn, "wb"), hdr) |
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/* close stdio output file or stream */ |
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#define BMPcloseOutput(bw) ( fclose((FILE *)(bw)->c_data), \ |
