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-rw-r--r--converter/bmp.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/converter/bmp.h b/converter/bmp.h
index 80e93fba..6a883394 100644
--- a/converter/bmp.h
+++ b/converter/bmp.h
@@ -145,7 +145,13 @@ static __inline__ unsigned int
 BMPlencolormap(enum bmpClass const class,
                unsigned int  const bitcount, 
                unsigned int  const cmapsize) {
+/*----------------------------------------------------------------------------
+   The number of bytes of the BMP stream occupied by the colormap in a
+   BMP of class 'class' with 'bitcount' bits per pixel and 'cmapsize'
+   entries in the palette.
 
+   'cmapsize' == 0 means there is no palette.
+-----------------------------------------------------------------------------*/
     unsigned int lenrgb;
     unsigned int lencolormap;