diff options
Diffstat (limited to 'src/3rdparty/libpng/pngrio.c')
| -rw-r--r-- | src/3rdparty/libpng/pngrio.c | 40 |
1 files changed, 13 insertions, 27 deletions
diff --git a/src/3rdparty/libpng/pngrio.c b/src/3rdparty/libpng/pngrio.c index 2267bca..53f2a45 100644 --- a/src/3rdparty/libpng/pngrio.c +++ b/src/3rdparty/libpng/pngrio.c @@ -1,8 +1,8 @@ /* pngrio.c - functions for data input * - * Last changed in libpng 1.2.37 [June 4, 2009] - * Copyright (c) 1998-2009 Glenn Randers-Pehrson + * Last changed in libpng 1.4.0 [January 3, 2010] + * Copyright (c) 1998-2010 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 +18,10 @@ * libpng use it at run time with png_set_read_fn(...). */ -#define PNG_INTERNAL +#define PNG_NO_PEDANTIC_WARNINGS #include "png.h" -#if defined(PNG_READ_SUPPORTED) +#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 @@ -32,13 +33,14 @@ void /* PRIVATE */ png_read_data(png_structp png_ptr, png_bytep data, png_size_t length) { png_debug1(4, "reading %d bytes", (int)length); + if (png_ptr->read_data_fn != NULL) (*(png_ptr->read_data_fn))(png_ptr, data, length); else png_error(png_ptr, "Call to NULL read function"); } -#if !defined(PNG_NO_STDIO) +#ifdef PNG_STDIO_SUPPORTED /* This is the function that does the actual reading of data. If you are * not reading from a standard C stream, you should create a replacement * read_data function and use it at run time with png_set_read_fn(), rather @@ -55,13 +57,7 @@ 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. */ -#if defined(_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"); @@ -78,7 +74,7 @@ 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; @@ -89,12 +85,7 @@ 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) { -#if defined(_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 { @@ -105,12 +96,7 @@ png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) do { read = MIN(NEAR_BUF_SIZE, remaining); -#if defined(_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; @@ -151,7 +137,7 @@ png_set_read_fn(png_structp png_ptr, png_voidp io_ptr, return; png_ptr->io_ptr = io_ptr; -#if !defined(PNG_NO_STDIO) +#ifdef PNG_STDIO_SUPPORTED if (read_data_fn != NULL) png_ptr->read_data_fn = read_data_fn; else @@ -167,10 +153,10 @@ 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"); } -#if defined(PNG_WRITE_FLUSH_SUPPORTED) +#ifdef PNG_WRITE_FLUSH_SUPPORTED png_ptr->output_flush_fn = NULL; #endif } |