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Imported from libpng-0.99d.tar

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This commit is contained in:
Glenn Randers-Pehrson
1998-02-08 20:56:40 -06:00
parent 0f881d62b3
commit a357b99113
24 changed files with 3267 additions and 1198 deletions
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24
pngpread.c
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@@ -1,12 +1,12 @@
/* pngpread.c - read a png file in push mode
*
* libpng 0.99c
* libpng 0.99d
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson
* February 7, 1998
* February 8, 1998
*/
#define PNG_INTERNAL
@@ -638,7 +638,7 @@ png_push_process_row(png_structp png_ptr)
png_ptr->row_buf + 1, png_ptr->prev_row + 1,
(int)(png_ptr->row_buf[0]));
png_buffered_memcpy(png_ptr, png_ptr->prev_row, png_ptr->row_buf,
png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf,
png_ptr->rowbytes + 1);
if (png_ptr->transformations)
@@ -774,8 +774,8 @@ png_read_push_finish_row(png_structp png_ptr)
if (png_ptr->interlaced)
{
png_ptr->row_number = 0;
png_buffered_memset(png_ptr, png_ptr->prev_row, 0,
(png_size_t)png_ptr->rowbytes + 1);
png_memset_check(png_ptr, png_ptr->prev_row, 0,
png_ptr->rowbytes + 1);
do
{
png_ptr->pass++;
@@ -806,7 +806,11 @@ void
png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
if (png_ptr->mode == PNG_BEFORE_IHDR || png_ptr->mode & PNG_HAVE_IEND)
png_error(png_ptr, "Out of place tEXt");
{
png_error(png_ptr, "Out of place tEXt");
/* to quiet some compiler warnings */
if(info_ptr == NULL) return;
}
#ifdef PNG_MAX_MALLOC_64K
png_ptr->skip_length = 0; /* This may not be necessary */
@@ -888,7 +892,11 @@ void
png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
{
if (png_ptr->mode == PNG_BEFORE_IHDR || png_ptr->mode & PNG_HAVE_IEND)
png_error(png_ptr, "Out of place zTXt");
{
png_error(png_ptr, "Out of place zTXt");
/* to quiet some compiler warnings */
if(info_ptr == NULL) return;
}
#ifdef PNG_MAX_MALLOC_64K
/* We can't handle zTXt chunks > 64K, since we don't have enough space
@@ -1073,6 +1081,8 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 len
if (!(png_ptr->chunk_name[0] & 0x20))
{
png_chunk_error(png_ptr, "unknown critical chunk");
/* to quiet some compiler warnings */
if(info_ptr == NULL) return;
}
png_push_crc_skip(png_ptr, length);