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Diffstat (limited to 'progs/util/imagesgi.h')
| -rw-r--r-- | progs/util/imagesgi.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/progs/util/imagesgi.h b/progs/util/imagesgi.h new file mode 100644 index 000000000..e5ecece49 --- /dev/null +++ b/progs/util/imagesgi.h @@ -0,0 +1,55 @@ +/****************************************************************************** +** Filename : imageSgi.h +** UNCLASSIFIED +** +** Description : Utility to read SGI image format files. This code was +** originally a SGI image loading utility provided with the +** Mesa 3D library @ http://www.mesa3d.org by Brain Paul. +** This has been extended to read all SGI image formats +** (e.g. INT, INTA, RGB, RGBA). +** +** Revision History: +** Date Name Description +** 06/08/99 BRC Initial Release +** +******************************************************************************/ + +#ifndef __IMAGESGI_H +#define __IMAGESGI_H + +#define IMAGE_SGI_TYPE_VERBATIM 0 +#define IMAGE_SGI_TYPE_RLE 1 + +struct sImageSgiHeader // 512 bytes +{ + short magic; // IRIS image file magic number (474) + char type; // Storage format (e.g. RLE or VERBATIM) + char numBytesPerPixelChannel; // Number of bytes per pixel channel + unsigned short dim; // Number of dimensions (1 to 3) + unsigned short xsize; // Width (in pixels) + unsigned short ysize; // Height (in pixels) + unsigned short zsize; // Number of channels (1 to 4) + int minimumPixelValue; // Minimum pixel value (0 to 255) + int maximumPixelValue; // Maximum pixel value (0 to 255) + char padding1[4]; // (ignored) + char imageName[80]; // Image name + int colormap; // colormap ID (0=normal, 0=dithered, + // 2=screen, 3=colormap) + char padding2[404]; // (ignored) +}; + +struct sImageSgi +{ + struct sImageSgiHeader header; + unsigned char *data; +}; + +#ifndef __IMAGESGI_CPP + +// RGB image load utility +extern struct sImageSgi *ImageSgiOpen(char const * const fileName); +extern void ImageSgiClose(struct sImageSgi *image); + +#endif + +#endif /* __IMAGESGI_H */ |