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Imported from libpng-1.2.30rc05.tar

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This commit is contained in:
Glenn Randers-Pehrson
2008-07-25 08:38:43 -05:00
parent 9c8717e42f
commit 84d5d968a6
62 changed files with 270 additions and 229 deletions
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31
pngread.c
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@@ -1,7 +1,7 @@
/* pngread.c - read a PNG file
*
* Last changed in libpng 1.2.30 [July 22, 2008]
* Last changed in libpng 1.2.30 [July 25, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -68,7 +68,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#endif
{
png_free(png_ptr, png_ptr->zbuf);
png_ptr->zbuf=NULL;
png_ptr->zbuf = NULL;
#ifdef PNG_USER_MEM_SUPPORTED
png_destroy_struct_2((png_voidp)png_ptr,
(png_free_ptr)free_fn, (png_voidp)mem_ptr);
@@ -90,7 +90,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
if (user_png_ver)
{
i=0;
i = 0;
do
{
if (user_png_ver[i] != png_libpng_ver[i])
@@ -127,7 +127,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
png_warning(png_ptr, msg);
#endif
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
png_ptr->flags=0;
png_ptr->flags = 0;
#endif
png_error(png_ptr,
"Incompatible libpng version in application and library");
@@ -195,7 +195,7 @@ png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
png_sizeof(png_info) > png_info_size)
{
char msg[80];
png_ptr->warning_fn=NULL;
png_ptr->warning_fn = NULL;
if (user_png_ver)
{
png_snprintf(msg, 80,
@@ -211,18 +211,18 @@ png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver,
#endif
if (png_sizeof(png_struct) > png_struct_size)
{
png_ptr->error_fn=NULL;
png_ptr->error_fn = NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
png_ptr->flags=0;
png_ptr->flags = 0;
#endif
png_error(png_ptr,
"The png struct allocated by the application for reading is too small.");
}
if (png_sizeof(png_info) > png_info_size)
{
png_ptr->error_fn=NULL;
png_ptr->error_fn = NULL;
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
png_ptr->flags=0;
png_ptr->flags = 0;
#endif
png_error(png_ptr,
"The info struct allocated by application for reading is too small.");
@@ -239,7 +239,7 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
jmp_buf tmp_jmp; /* to save current jump buffer */
#endif
int i=0;
int i = 0;
png_structp png_ptr=*ptr_ptr;
@@ -252,7 +252,7 @@ png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
#ifdef PNG_LEGACY_SUPPORTED
png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH;
#else
png_ptr->warning_fn=NULL;
png_ptr->warning_fn = NULL;
png_warning(png_ptr,
"Application uses deprecated png_read_init() and should be recompiled.");
break;
@@ -406,7 +406,7 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
#endif
#endif /* PNG_USE_LOCAL_ARRAYS */
png_uint_32 length = png_read_chunk_header(png_ptr);
png_bytep chunk_name = png_ptr->chunk_name;
PNG_CONST png_bytep chunk_name = png_ptr->chunk_name;
/* This should be a binary subdivision search or a hash for
* matching the chunk name rather than a linear search.
@@ -904,9 +904,6 @@ png_read_image(png_structp png_ptr, png_bytepp image)
void PNGAPI
png_read_end(png_structp png_ptr, png_infop info_ptr)
{
png_bytep chunk_name;
png_uint_32 length;
png_debug(1, "in png_read_end\n");
if (png_ptr == NULL) return;
png_crc_finish(png_ptr, 0); /* Finish off CRC from last IDAT chunk */
@@ -970,8 +967,8 @@ png_read_end(png_structp png_ptr, png_infop info_ptr)
PNG_CONST PNG_zTXt;
#endif
#endif /* PNG_USE_LOCAL_ARRAYS */
length = png_read_chunk_header(png_ptr);
chunk_name = png_ptr->chunk_name;
png_uint_32 length = png_read_chunk_header(png_ptr);
PNG_CONST png_bytep chunk_name = png_ptr->chunk_name;
if (!png_memcmp(chunk_name, png_IHDR, 4))
png_handle_IHDR(png_ptr, info_ptr, length);