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diff --git a/tests/mesa/util/imagesgi.h b/tests/mesa/util/imagesgi.h
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+/******************************************************************************
+** 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 */