Hello, I think that I found some mistakes in the code that reads and writes RLE-compressed TGA files (in tga.c). Gimp can generate a RLE-compressed file containing RLE packets, which go through the end of a scan line (that is encode pixels from more that one pixel line), which is prohibited by the standard. I tested it by generating a 5x5 grayscale image with the following pattern: OXXOO OXXOO OXXOO OXXOO OOOOO (O = white, X = black) Gimp compressed the white pixels with one packet containing the first pixel, 3 packets containing the last two pixels on i-th line a the first pixel on (i-1)-th line (i=1,2,3), and one packet containing the last 7 pixels. I think that the reason is in setting the width variable in save_image(): here the width should be equal to the width of the image. Another problem is in the rle_read() function: variables repeat and direct are not correctly initialized on every call of rle_read(), as they are static. This is, by a chance (IMO) the reason, why Gimp can read its own RLE-compressed files: these two variables keep their values from the last call. I apologize that I can't try to fix the errors myself at the moment, as I'm late with some urgent SW project. Best regards, Petr -- Petr Mejzlik Dept. of Information Technology, Faculty of Informatics Masaryk University Internet: mejzlik@xxxxxxxxxx Botanicka 68a FAX : +42-05-4121 2568 CZ-602 00 Brno, Czech Republic Tel.: +42-05-4151 2338
