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-rwxr-xr-xsrc/codec/img-codec-parser.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/codec/img-codec-parser.c b/src/codec/img-codec-parser.c
index 2d8d348..8cc94d5 100755
--- a/src/codec/img-codec-parser.c
+++ b/src/codec/img-codec-parser.c
@@ -275,10 +275,9 @@ static int _ImgGetImageInfo(HFile hFile, unsigned long fileSize, char *fileExt,
(EncodedDataBuffer[21] << 24);
}
if (pHeight) {
- *pHeight =
- EncodedDataBuffer[22] | (EncodedDataBuffer[23] << 8)
- | (EncodedDataBuffer[24] << 16) |
- (EncodedDataBuffer[25] << 24);
+ // add the reference function abs(). may have negative height values in bmp header.
+ *pHeight = abs(EncodedDataBuffer[22] | (EncodedDataBuffer[23] << 8) |
+ (EncodedDataBuffer[24] << 16) | (EncodedDataBuffer[25] << 24));
}
thumb_dbg("IMG_CODEC_BMP");