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[master] Imported from libpng-1.4.0beta97.tar

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This commit is contained in:
Glenn Randers-Pehrson
2009-11-12 18:07:00 -06:00
parent 6099e57b07
commit dcdc92c80c
127 changed files with 4985 additions and 6915 deletions
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28
pngrio.c
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@@ -1,7 +1,7 @@
/* pngrio.c - functions for data input
*
* Last changed in libpng 1.2.41 [November 11, 2009]
* Last changed in libpng 1.4.0 [November 13, 2009]
* Copyright (c) 1998-2009 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.)
@@ -18,9 +18,9 @@
* libpng use it at run time with png_set_read_fn(...).
*/
#define PNG_INTERNAL
#include "png.h"
#ifdef PNG_READ_SUPPORTED
#include "pngpriv.h"
/* Read the data from whatever input you are using. The default routine
* reads from a file pointer. Note that this routine sometimes gets called
@@ -56,13 +56,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
/* fread() returns 0 on error, so it is OK to store this in a png_size_t
* instead of an int, which is what fread() actually returns.
*/
#ifdef _WIN32_WCE
if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) )
check = 0;
#else
check = (png_size_t)fread(data, (png_size_t)1, length,
(png_FILE_p)png_ptr->io_ptr);
#endif
check = fread(data, 1, length, (png_FILE_p)png_ptr->io_ptr);
if (check != length)
png_error(png_ptr, "Read Error");
@@ -79,7 +73,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
static void PNGAPI
png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
{
int check;
png_size_t check;
png_byte *n_data;
png_FILE_p io_ptr;
@@ -90,12 +84,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
if ((png_bytep)n_data == data)
{
#ifdef _WIN32_WCE
if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) )
check = 0;
#else
check = fread(n_data, 1, length, io_ptr);
#endif
}
else
{
@@ -106,12 +95,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
do
{
read = MIN(NEAR_BUF_SIZE, remaining);
#ifdef _WIN32_WCE
if ( !ReadFile((HANDLE)(io_ptr), buf, read, &err, NULL) )
err = 0;
#else
err = fread(buf, (png_size_t)1, read, io_ptr);
#endif
err = fread(buf, 1, read, io_ptr);
png_memcpy(data, buf, read); /* copy far buffer to near buffer */
if (err != read)
break;
@@ -168,7 +152,7 @@ png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
png_warning(png_ptr,
"It's an error to set both read_data_fn and write_data_fn in the ");
png_warning(png_ptr,
"same structure. Resetting write_data_fn to NULL.");
"same structure. Resetting write_data_fn to NULL");
}
#ifdef PNG_WRITE_FLUSH_SUPPORTED