Vincent Povirk : windowscodecs: Handle broken TIFF files without a RowsPerStrip tag.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a08aa5391ec2674c341cfbbae318218b605af9ee
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=a08aa5391ec2674c341cfbbae3...

Author: Vincent Povirk 
Date:   Thu Apr 21 01:17:07 2011 -0500

windowscodecs: Handle broken TIFF files without a RowsPerStrip tag.

---

dlls/windowscodecs/tiffformat.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/dlls/windowscodecs/tiffformat.c b/dlls/windowscodecs/tiffformat.c
index 5bce3ad..88dbc79 100644
--- a/dlls/windowscodecs/tiffformat.c
+++ b/dlls/windowscodecs/tiffformat.c
@@ -462,8 +462,11 @@ static HRESULT tiff_get_decode_info(TIFF *tiff, tiff_decode_info *decode_info)
     }
     else
     {
-        FIXME("missing RowsPerStrip value\n");
-        return E_FAIL;
+        /* Some broken TIFF files have a single strip and lack the RowsPerStrip tag */
+        decode_info->tile_height = decode_info->height;
+        decode_info->tile_width = decode_info->width;
+        decode_info->tile_stride = ((decode_info->bpp * decode_info->tile_width + 7)/8);
+        decode_info->tile_size = decode_info->tile_height * decode_info->tile_stride;
     }

decode_info->resolution_unit = 0;