mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

Imported from libpng-0.99.tar

Browse Source
This commit is contained in:
Glenn Randers-Pehrson
1998-01-30 21:45:12 -06:00
parent c4a2ae6cac
commit 46f61e2398
25 changed files with 856 additions and 187 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
pngread.c
View File

@@ -1,12 +1,12 @@
/* pngread.c - read a PNG file
*
* libpng 0.98
* libpng 0.99
* 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
* January 16, 1998
* January 30, 1998
*
* This file contains routines that an application calls directly to
* read a PNG file or stream.
@@ -58,7 +58,7 @@ png_create_read_struct(png_const_charp user_png_ver, png_voidp error_ptr,
/* initialize zbuf - compression buffer */
png_ptr->zbuf_size = PNG_ZBUF_SIZE;
png_ptr->zbuf = png_malloc(png_ptr, png_ptr->zbuf_size);
png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, png_ptr->zbuf_size);
png_ptr->zstream.zalloc = png_zalloc;
png_ptr->zstream.zfree = png_zfree;
png_ptr->zstream.opaque = (voidpf)png_ptr;
@@ -100,7 +100,7 @@ png_read_init(png_structp png_ptr)
/* initialize zbuf - compression buffer */
png_ptr->zbuf_size = PNG_ZBUF_SIZE;
png_ptr->zbuf = png_malloc(png_ptr, png_ptr->zbuf_size);
png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, png_ptr->zbuf_size);
png_ptr->zstream.zalloc = png_zalloc;
png_ptr->zstream.zfree = png_zfree;
png_ptr->zstream.opaque = (voidpf)png_ptr;
@@ -665,7 +665,7 @@ png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr,
if (end_info_ptr != NULL)
{
#if defined(PNG_READ_tEXt_SUPPORTED) || defined(PNG_READ_zTXt_SUPPORTED)
png_free(png_ptr, info_ptr->text);
png_free(png_ptr, end_info_ptr->text);
#endif
png_destroy_struct((png_voidp)end_info_ptr);
*end_info_ptr_ptr = (png_infop)NULL;
@@ -710,7 +710,7 @@ png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr
png_free(png_ptr, png_ptr->gamma_to_1);
#endif
if (png_ptr->flags & PNG_FLAG_FREE_PALETTE)
png_free(png_ptr, png_ptr->palette);
png_zfree(png_ptr, png_ptr->palette);
#if defined(PNG_READ_BACKGROUND_SUPPORTED) && defined(PNG_READ_bKGD_SUPPORTED)
if (png_ptr->flags & PNG_FLAG_FREE_TRANS)
png_free(png_ptr, png_ptr->trans);