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[libpng17] Imported from libpng-1.7.0beta61.tar

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Glenn Randers-Pehrson
2015-05-30 22:13:19 -05:00
parent 689b9c58fe
commit e0fea61cd8
19 changed files with 72 additions and 54 deletions
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14
pngstruct.h
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@@ -330,15 +330,23 @@ struct png_struct_def
*
* Members that hold pointers to the decompressed image rows.
*/
png_bytep row_buf; /* buffer for the current (unfiltered) row */
png_bytep row_buf; /* buffer to save current (unfiltered) row.
* While reading, this is a pointer into
* big_row_buf; while writing it is separately
* allocated.
*/
#if defined(PNG_WRITE_FILTER_SUPPORTED) || defined(PNG_READ_SUPPORTED)
png_bytep prev_row; /* buffer to save the previous (unfiltered) row */
png_bytep prev_row; /* buffer to save previous (unfiltered) row.
* While reading this is a pointer into
* big_prev_row; while writing it is separately
* allocated if needed.
*/
#endif
#ifdef PNG_READ_SUPPORTED
/* The row_buf and prev_row pointers are misaligned so that the start of the
* row - after the filter byte - is aligned, the 'big_' pointers record the
* original allocated pointer.
* original allocated pointer. These are only used while reading.
*/
png_bytep big_row_buf;
png_bytep big_prev_row;