# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1516482013 0
# Node ID 81641d82ccc6fc0a86d8ecfc581d56c6daf21bc2
# Parent  f233f0a012c9f63fec37076da5978df455e6387c
fbdump2ppm: adjust for R2D's extra 32-bit word

diff -r f233f0a012c9 -r 81641d82ccc6 miscprog/fbdump2ppm.c
--- a/miscprog/fbdump2ppm.c	Sat Jan 20 20:46:08 2018 +0000
+++ b/miscprog/fbdump2ppm.c	Sat Jan 20 21:00:13 2018 +0000
@@ -1,13 +1,18 @@
 /*
  * This program converts a dump of TI's R2D framebuffer (176x220 pix, 16-bit)
  * captured via fc-memdump into PPM format for viewing.
+ *
+ * TI's R2D code adds an extra 32-bit word to each horizontal line in its
+ * framebuffer representation, hence one needs to capture 0x131F0 bytes
+ * (178*2*220 instead of 176*2*220), and we treat the image as being
+ * 178x220 pixels for simplicity.
  */
 
 #include <sys/types.h>
 #include <stdio.h>
 #include <stdlib.h>
 
-#define	NPIX	(176*220)
+#define	NPIX	(178*220)
 
 FILE *inf, *outf;
 
@@ -53,7 +58,7 @@
 		perror(argv[2]);
 		exit(1);
 	}
-	fprintf(outf, "P6\n176 220\n255\n");
+	fprintf(outf, "P6\n178 220\n255\n");
 	for (n = 0; n < NPIX; n++)
 		convert_pixel();
 	exit(0);