synchronized with downstream git

[swftools.git] / lib / modules / swfbits.c

diff --git a/lib/modules/swfbits.c b/lib/modules/swfbits.c
index 88ba8b9..4643551 100644 (file)
--- a/lib/modules/swfbits.c
+++ b/lib/modules/swfbits.c
@@ -561,7 +561,8 @@ static void tag_init_source(struct jpeg_decompress_struct *cinfo)
 static boolean tag_fill_input_buffer(struct jpeg_decompress_struct *cinfo)
 {
     TAG *tag = (TAG *) cinfo->client_data;
-    if (tag->data[tag->pos + 0] == 0xff &&
+    if (tag->pos + 4 <= tag->len &&
+       tag->data[tag->pos + 0] == 0xff &&
        tag->data[tag->pos + 1] == 0xd9 &&
        tag->data[tag->pos + 2] == 0xff &&
        tag->data[tag->pos + 3] == 0xd8) {
@@ -1181,9 +1182,15 @@ TAG* swf_AddImage(TAG*tag, int bitid, RGBA*mem, int width, int height, int quali
     int has_alpha = swf_ImageHasAlpha(mem,width,height);
 
     /* try lossless image */
+
+#ifdef NO_LOSSLESS
+    tag1 = swf_InsertTag(0, /*ST_DEFINEBITSLOSSLESS1/2*/0);
+    tag1->len = 0x7fffffff;
+#else
     tag1 = swf_InsertTag(0, /*ST_DEFINEBITSLOSSLESS1/2*/0);
     swf_SetU16(tag1, bitid);
     swf_SetLosslessImage(tag1, mem, width, height);
+#endif
 
 #if defined(HAVE_JPEGLIB)
     /* try jpeg image */