From 4df3ccd3ebf2376ecdbf4c570fd914606418c75f Mon Sep 17 00:00:00 2001
From: Robin Krens <robin@robinkrens.nl>
Date: Tue, 14 Jun 2022 20:53:54 +0200
Subject: [PATCH] tools: bmp2tiles correct substraction of columns

---
 tools/bmp2tiles/bmp2tiles.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/bmp2tiles/bmp2tiles.c b/tools/bmp2tiles/bmp2tiles.c
index b005365..380481e 100644
--- a/tools/bmp2tiles/bmp2tiles.c
+++ b/tools/bmp2tiles/bmp2tiles.c
@@ -88,7 +88,7 @@ void generate_4bpp_tile(unsigned char *buf, swan_gfx_t * gfx,
 		if (!packed)
 			ptr += 8;
 		else {
-			ptr += (8 * (gfx->row_tiles-1));
+			ptr += (8 * (gfx->col_tiles-1));
 		}
 	}
 }
@@ -170,7 +170,7 @@ int main(int argc, char *argv[])
 			gfx->data += 8; /* next column */
 			//printf("\n");
 		}
-		gfx->data += (gfx->col_tiles * 64) - 16;
+		gfx->data += (gfx->col_tiles * 64) - (8 * gfx->col_tiles);
 	}
 	
 	palstream = fopen("out.pal", "w");
-- 
2.7.4