# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1544467726 -7200
# Node ID a0a6f5a3fbbfc82b0b2bc0d619472012da06672e
# Parent  a14286e2710e0559ac4d6ad4233c8b505b3af413
Fix plane buffer size calculation for IFF ACBM to round up to nearest byte (minimum of 1).

diff -r a14286e2710e -r a0a6f5a3fbbf tools/libgfx.c
--- a/tools/libgfx.c	Mon Dec 10 20:35:18 2018 +0200
+++ b/tools/libgfx.c	Mon Dec 10 20:48:46 2018 +0200
@@ -1691,7 +1691,7 @@
     else
     if (iff->idsig == IFF_ID_ACBM)
     {
-        bufLen = (img->width * img->height) / 8;
+        bufLen = (img->width * img->height + 7) / 8;
         dmMsg(2, "IFF: Plane buffer size %d bytes.\n", bufLen);
     }
 
@@ -2360,10 +2360,10 @@
 
     // Allocate encoding buffer
     if (iff.idsig == IFF_ID_ILBM)
-        bufLen = (((img->width * spec->scaleX) + 15) / 16) * 2;
+        bufLen = ((img->width * spec->scaleX + 15) / 16) * 2;
     else
     if (iff.idsig == IFF_ID_ACBM)
-        bufLen = (img->width * spec->scaleX * img->height * spec->scaleY) / 8;
+        bufLen = (img->width * spec->scaleX * img->height * spec->scaleY + 7) / 8;
     else
         bufLen = img->width * spec->scaleX;