setting clipping correctly

[wxWidgets.git] / src / tiff / tif_thunder.c

diff --git a/src/tiff/tif_thunder.c b/src/tiff/tif_thunder.c
index 068483f19701f552ed8e7fabd7dd40aebe3b42da..08807959805872c3b5ee16b1115125de77c405d6 100644 (file)
--- a/src/tiff/tif_thunder.c
+++ b/src/tiff/tif_thunder.c
@@ -4,23 +4,23 @@
  * Copyright (c) 1988-1997 Sam Leffler
  * Copyright (c) 1991-1997 Silicon Graphics, Inc.
  *
- * Permission to use, copy, modify, distribute, and sell this software and
+ * Permission to use, copy, modify, distribute, and sell this software and 
  * its documentation for any purpose is hereby granted without fee, provided
  * that (i) the above copyright notices and this permission notice appear in
  * all copies of the software and related documentation, and (ii) the names of
  * Sam Leffler and Silicon Graphics may not be used in any advertising or
  * publicity relating to the software without the specific, prior written
  * permission of Sam Leffler and Silicon Graphics.
- *
- * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- *
+ * 
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
+ * 
  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
  * OF THIS SOFTWARE.
  */
 
@@ -60,7 +60,7 @@ static const int threebitdeltas[8] = { 0, 1, 2, 3, 0, -3, -2, -1 };
        if (npixels++ & 1) \
            *op++ |= lastpixel; \
        else \
-           op[0] = lastpixel << 4; \
+           op[0] = (tidataval_t) (lastpixel << 4); \
 }
 
 static int
@@ -91,8 +91,10 @@ ThunderDecode(TIFF* tif, tidata_t op, tsize_t maxpixels)
                        } else
                                lastpixel |= lastpixel << 4;
                        npixels += n;
-                       for (; n > 0; n -= 2)
-                               *op++ = lastpixel;
+                       if (npixels < maxpixels) {
+                               for (; n > 0; n -= 2)
+                                       *op++ = (tidataval_t) lastpixel;
+                       }
                        if (n == -1)
                                *--op &= 0xf0;
                        lastpixel &= 0xf;
@@ -128,7 +130,7 @@ ThunderDecode(TIFF* tif, tidata_t op, tsize_t maxpixels)
        return (1);
 }
 
-static int LINKAGEMODE
+static int
 ThunderDecodeRow(TIFF* tif, tidata_t buf, tsize_t occ, tsample_t s)
 {
        tidata_t row = buf;