--- a/jdk/src/java.desktop/share/native/libsplashscreen/libpng/pngpread.c Tue Dec 01 12:38:28 2015 +0000
+++ b/jdk/src/java.desktop/share/native/libsplashscreen/libpng/pngpread.c Tue Dec 08 19:01:33 2015 +0300
@@ -29,8 +29,8 @@
* However, the following notice accompanied the original version of this
* file and, per its terms, should not be removed:
*
- * Last changed in libpng 1.6.15 [November 20, 2014]
- * Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.18 [July 23, 2015]
+ * Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*
@@ -47,7 +47,6 @@
#define PNG_READ_SIG_MODE 0
#define PNG_READ_CHUNK_MODE 1
#define PNG_READ_IDAT_MODE 2
-#define PNG_SKIP_MODE 3
#define PNG_READ_tEXt_MODE 4
#define PNG_READ_zTXt_MODE 5
#define PNG_READ_DONE_MODE 6
@@ -106,32 +105,14 @@
png_uint_32 PNGAPI
png_process_data_skip(png_structrp png_ptr)
{
- png_uint_32 remaining = 0;
-
- if (png_ptr != NULL && png_ptr->process_mode == PNG_SKIP_MODE &&
- png_ptr->skip_length > 0)
- {
- /* At the end of png_process_data the buffer size must be 0 (see the loop
- * above) so we can detect a broken call here:
- */
- if (png_ptr->buffer_size != 0)
- png_error(png_ptr,
- "png_process_data_skip called inside png_process_data");
-
- /* If is impossible for there to be a saved buffer at this point -
- * otherwise we could not be in SKIP mode. This will also happen if
- * png_process_skip is called inside png_process_data (but only very
- * rarely.)
- */
- if (png_ptr->save_buffer_size != 0)
- png_error(png_ptr, "png_process_data_skip called with saved data");
-
- remaining = png_ptr->skip_length;
- png_ptr->skip_length = 0;
- png_ptr->process_mode = PNG_READ_CHUNK_MODE;
- }
-
- return remaining;
+ /* TODO: Deprecate and remove this API.
+ * Somewhere the implementation of this seems to have been lost,
+ * or abandoned. It was only to support some internal back-door access
+ * to png_struct) in libpng-1.4.x.
+ */
+ png_app_warning(png_ptr,
+"png_process_data_skip is not implemented in any current version of libpng");
+ return 0;
}
/* What we do with the incoming data depends on what we were previously
@@ -163,12 +144,6 @@
break;
}
- case PNG_SKIP_MODE:
- {
- png_push_crc_finish(png_ptr);
- break;
- }
-
default:
{
png_ptr->buffer_size = 0;
@@ -187,7 +162,7 @@
png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
{
png_size_t num_checked = png_ptr->sig_bytes, /* SAFE, does not exceed 8 */
- num_to_check = 8 - num_checked;
+ num_to_check = 8 - num_checked;
if (png_ptr->buffer_size < num_to_check)
{
@@ -467,69 +442,6 @@
png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER;
}
-void /* PRIVATE */
-png_push_crc_skip(png_structrp png_ptr, png_uint_32 skip)
-{
- png_ptr->process_mode = PNG_SKIP_MODE;
- png_ptr->skip_length = skip;
-}
-
-void /* PRIVATE */
-png_push_crc_finish(png_structrp png_ptr)
-{
- if (png_ptr->skip_length != 0 && png_ptr->save_buffer_size != 0)
- {
- png_size_t save_size = png_ptr->save_buffer_size;
- png_uint_32 skip_length = png_ptr->skip_length;
-
- /* We want the smaller of 'skip_length' and 'save_buffer_size', but
- * they are of different types and we don't know which variable has the
- * fewest bits. Carefully select the smaller and cast it to the type of
- * the larger - this cannot overflow. Do not cast in the following test
- * - it will break on either 16 or 64 bit platforms.
- */
- if (skip_length < save_size)
- save_size = (png_size_t)skip_length;
-
- else
- skip_length = (png_uint_32)save_size;
-
- png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size);
-
- png_ptr->skip_length -= skip_length;
- png_ptr->buffer_size -= save_size;
- png_ptr->save_buffer_size -= save_size;
- png_ptr->save_buffer_ptr += save_size;
- }
- if (png_ptr->skip_length != 0 && png_ptr->current_buffer_size != 0)
- {
- png_size_t save_size = png_ptr->current_buffer_size;
- png_uint_32 skip_length = png_ptr->skip_length;
-
- /* We want the smaller of 'skip_length' and 'current_buffer_size', here,
- * the same problem exists as above and the same solution.
- */
- if (skip_length < save_size)
- save_size = (png_size_t)skip_length;
-
- else
- skip_length = (png_uint_32)save_size;
-
- png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size);
-
- png_ptr->skip_length -= skip_length;
- png_ptr->buffer_size -= save_size;
- png_ptr->current_buffer_size -= save_size;
- png_ptr->current_buffer_ptr += save_size;
- }
- if (png_ptr->skip_length == 0)
- {
- PNG_PUSH_SAVE_BUFFER_IF_LT(4)
- png_crc_finish(png_ptr, 0);
- png_ptr->process_mode = PNG_READ_CHUNK_MODE;
- }
-}
-
void PNGCBAPI
png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
{
@@ -612,13 +524,11 @@
if (png_ptr->save_buffer == NULL)
{
png_free(png_ptr, old_buffer);
- old_buffer = NULL;
png_error(png_ptr, "Insufficient memory for save_buffer");
}
memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size);
png_free(png_ptr, old_buffer);
- old_buffer = NULL;
png_ptr->save_buffer_max = new_max;
}
if (png_ptr->current_buffer_size)
@@ -681,7 +591,7 @@
* are of different types and we don't know which variable has the fewest
* bits. Carefully select the smaller and cast it to the type of the
* larger - this cannot overflow. Do not cast in the following test - it
- * will break on either 16 or 64 bit platforms.
+ * will break on either 16-bit or 64-bit platforms.
*/
if (idat_size < save_size)
save_size = (png_size_t)idat_size;
@@ -724,6 +634,7 @@
png_ptr->current_buffer_size -= save_size;
png_ptr->current_buffer_ptr += save_size;
}
+
if (png_ptr->idat_size == 0)
{
PNG_PUSH_SAVE_BUFFER_IF_LT(4)
@@ -754,7 +665,7 @@
* or the stream marked as finished.
*/
while (png_ptr->zstream.avail_in > 0 &&
- !(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED))
+ (png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED) == 0)
{
int ret;
@@ -779,7 +690,7 @@
* change the current behavior (see comments in inflate.c
* for why this doesn't happen at present with zlib 1.2.5).
*/
- ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH);
+ ret = PNG_INFLATE(png_ptr, Z_SYNC_FLUSH);
/* Check for any failure before proceeding. */
if (ret != Z_OK && ret != Z_STREAM_END)
@@ -1064,6 +975,7 @@
}
}
else
+#endif
{
png_push_have_row(png_ptr, png_ptr->row_buf + 1);
png_read_push_finish_row(png_ptr);
@@ -1073,6 +985,7 @@
void /* PRIVATE */
png_read_push_finish_row(png_structrp png_ptr)
{
+#ifdef PNG_READ_INTERLACING_SUPPORTED
/* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */
/* Start of interlace block */
@@ -1097,6 +1010,7 @@
if (png_ptr->row_number < png_ptr->num_rows)
return;
+#ifdef PNG_READ_INTERLACING_SUPPORTED
if (png_ptr->interlaced != 0)
{
png_ptr->row_number = 0;
@@ -1131,6 +1045,7 @@
} while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0);
}
+#endif /* READ_INTERLACING */
}
void /* PRIVATE */
@@ -1155,6 +1070,7 @@
(int)png_ptr->pass);
}
+#ifdef PNG_READ_INTERLACING_SUPPORTED
void PNGAPI
png_progressive_combine_row(png_const_structrp png_ptr, png_bytep old_row,
png_const_bytep new_row)
@@ -1169,6 +1085,7 @@
if (new_row != NULL)
png_combine_row(png_ptr, old_row, 1/*blocky display*/);
}
+#endif /* READ_INTERLACING */
void PNGAPI
png_set_progressive_read_fn(png_structrp png_ptr, png_voidp progressive_ptr,