[master] Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans)
Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {')
Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h
diff --git a/ANNOUNCE b/ANNOUNCE
index 6f8ea79..7ba1ed7 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
-Libpng 1.4.4beta01 - July 1, 2010
+Libpng 1.4.4beta01 - July 12, 2010
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@@ -26,11 +26,14 @@
Changes since the last public release (1.4.3):
-version 1.4.4beta01 [July 1, 2010]
+version 1.4.4beta01 [July 12, 2010]
Removed extraneous new_push_process_row.c file.
Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5
Removed some newly-added TAB characters from pngpread.c.
Fixed some indentation in pngpread.c and pngrutil.c
+ Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans)
+ Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {')
+ Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h
Send comments/corrections/commendations to glennrp at users.sourceforge.net
or to png-mng-implement at lists.sf.net (subscription required; visit
diff --git a/CHANGES b/CHANGES
index 3d187dd..678d370 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2610,11 +2610,14 @@
version 1.4.3 [June 26, 2010]
Updated some of the "last changed" dates.
-version 1.4.4beta01 [July 1, 2010]
+version 1.4.4beta01 [July 12, 2010]
Removed extraneous new_push_process_row.c file.
Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5
Removed some newly-added TAB characters from pngpread.c.
Fixed some indentation in pngpread.c and pngrutil.c
+ Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans)
+ Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {')
+ Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h
Send comments/corrections/commendations to glennrp at users.sourceforge.net
or to png-mng-implement at lists.sf.net (subscription required; visit
diff --git a/png.h b/png.h
index 07bbb4d..8393068 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
- * libpng version 1.4.4beta01 - June 26, 2010
+ * libpng version 1.4.4beta01 - July 12, 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.)
@@ -11,7 +11,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- * libpng versions 0.97, January 1998, through 1.4.4beta01 - June 26, 2010: Glenn
+ * libpng versions 0.97, January 1998, through 1.4.4beta01 - July 12, 2010: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -177,7 +177,7 @@
*
* This code is released under the libpng license.
*
- * libpng versions 1.2.6, August 15, 2004, through 1.4.4beta01, June 26, 2010, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.4.4beta01, July 12, 2010, are
* Copyright (c) 2004, 2006-2010 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
@@ -289,7 +289,7 @@
* Y2K compliance in libpng:
* =========================
*
- * June 26, 2010
+ * July 12, 2010
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
@@ -353,7 +353,7 @@
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.4.4beta01"
#define PNG_HEADER_VERSION_STRING \
- " libpng version 1.4.4beta01 - June 26, 2010\n"
+ " libpng version 1.4.4beta01 - July 12, 2010\n"
#define PNG_LIBPNG_VER_SONUM 14
#define PNG_LIBPNG_VER_DLLNUM 14
@@ -1486,12 +1486,12 @@
*/
/* Returns the version number of the library */
-extern PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void));
+PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void));
/* Tell lib we have already handled the first <num_bytes> magic bytes.
* Handling more than 8 bytes from the beginning of the file is an error.
*/
-extern PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr,
int num_bytes));
/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a
@@ -1499,7 +1499,7 @@
* signature, and non-zero otherwise. Having num_to_check == 0 or
* start > 7 will always fail (ie return non-zero).
*/
-extern PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start,
+PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start,
png_size_t num_to_check));
/* Simple signature checking function. This is the same as calling
@@ -1508,19 +1508,19 @@
#define png_check_sig(sig,n) !png_sig_cmp((sig), 0, (n))
/* Allocate and initialize png_ptr struct for reading, and any other memory. */
-extern PNG_EXPORT(png_structp,png_create_read_struct)
+PNG_EXPORT(png_structp,png_create_read_struct)
PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warn_fn)) PNG_ALLOCATED;
/* Allocate and initialize png_ptr struct for writing, and any other memory */
-extern PNG_EXPORT(png_structp,png_create_write_struct)
+PNG_EXPORT(png_structp,png_create_write_struct)
PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warn_fn)) PNG_ALLOCATED;
-extern PNG_EXPORT(png_size_t,png_get_compression_buffer_size)
+PNG_EXPORT(png_size_t,png_get_compression_buffer_size)
PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(void,png_set_compression_buffer_size)
+PNG_EXPORT(void,png_set_compression_buffer_size)
PNGARG((png_structp png_ptr, png_size_t size));
/* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp
@@ -1534,7 +1534,7 @@
* allocated by the library - the call will return NULL on a mismatch
* indicating an ABI mismatch.
*/
-extern PNG_EXPORT(jmp_buf*, png_set_longjmp_fn)
+PNG_EXPORT(jmp_buf*, png_set_longjmp_fn)
PNGARG((png_structp png_ptr, png_longjmp_ptr longjmp_fn, size_t
jmp_buf_size));
# define png_jmpbuf(png_ptr) \
@@ -1546,170 +1546,170 @@
#ifdef PNG_READ_SUPPORTED
/* Reset the compression stream */
-extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr));
+PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr));
#endif
/* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */
#ifdef PNG_USER_MEM_SUPPORTED
-extern PNG_EXPORT(png_structp,png_create_read_struct_2)
+PNG_EXPORT(png_structp,png_create_read_struct_2)
PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr,
png_malloc_ptr malloc_fn, png_free_ptr free_fn)) PNG_ALLOCATED;
-extern PNG_EXPORT(png_structp,png_create_write_struct_2)
+PNG_EXPORT(png_structp,png_create_write_struct_2)
PNGARG((png_const_charp user_png_ver, png_voidp error_ptr,
png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr,
png_malloc_ptr malloc_fn, png_free_ptr free_fn)) PNG_ALLOCATED;
#endif
/* Write the PNG file signature. */
-extern PNG_EXPORT(void,png_write_sig) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_write_sig) PNGARG((png_structp png_ptr));
/* Write a PNG chunk - size, type, (optional) data, CRC. */
-extern PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr,
png_bytep chunk_name, png_bytep data, png_size_t length));
/* Write the start of a PNG chunk - length and chunk name. */
-extern PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr,
png_bytep chunk_name, png_uint_32 length));
/* Write the data of a PNG chunk started with png_write_chunk_start(). */
-extern PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr,
png_bytep data, png_size_t length));
/* Finish a chunk started with png_write_chunk_start() (includes CRC). */
-extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr));
/* Allocate and initialize the info structure */
-extern PNG_EXPORT(png_infop,png_create_info_struct)
+PNG_EXPORT(png_infop,png_create_info_struct)
PNGARG((png_structp png_ptr)) PNG_ALLOCATED;
-extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr,
+PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr,
png_size_t png_info_struct_size));
/* Writes all the PNG information before the image. */
-extern PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr,
png_infop info_ptr));
-extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read the information before the actual image data. */
-extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#endif
#ifdef PNG_TIME_RFC1123_SUPPORTED
-extern PNG_EXPORT(png_charp,png_convert_to_rfc1123)
+PNG_EXPORT(png_charp,png_convert_to_rfc1123)
PNGARG((png_structp png_ptr, png_timep ptime));
#endif
#ifdef PNG_CONVERT_tIME_SUPPORTED
/* Convert from a struct tm to png_time */
-extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime,
+PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime,
struct tm FAR * ttime));
/* Convert from time_t to png_time. Uses gmtime() */
-extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime,
+PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime,
time_t ttime));
#endif /* PNG_CONVERT_tIME_SUPPORTED */
#ifdef PNG_READ_EXPAND_SUPPORTED
/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */
-extern PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(void,png_set_expand_gray_1_2_4_to_8) PNGARG((png_structp
+PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_expand_gray_1_2_4_to_8) PNGARG((png_structp
png_ptr));
-extern PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED)
/* Use blue, green, red order for pixels. */
-extern PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr));
#endif
#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED
/* Expand the grayscale to 24-bit RGB if necessary. */
-extern PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr));
#endif
#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
/* Reduce RGB to grayscale. */
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr,
int error_action, double red, double green ));
#endif
-extern PNG_EXPORT(void,png_set_rgb_to_gray_fixed) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_rgb_to_gray_fixed) PNGARG((png_structp png_ptr,
int error_action, png_fixed_point red, png_fixed_point green ));
-extern PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp
+PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp
png_ptr));
#endif
-extern PNG_EXPORT(void,png_build_grayscale_palette) PNGARG((int bit_depth,
+PNG_EXPORT(void,png_build_grayscale_palette) PNGARG((int bit_depth,
png_colorp palette));
#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED
-extern PNG_EXPORT(void,png_set_strip_alpha) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_strip_alpha) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \
defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED)
-extern PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \
defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED)
-extern PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED)
/* Add a filler byte to 8-bit Gray or 24-bit RGB images. */
-extern PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr,
png_uint_32 filler, int flags));
/* The values of the PNG_FILLER_ defines should NOT be changed */
#define PNG_FILLER_BEFORE 0
#define PNG_FILLER_AFTER 1
/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */
-extern PNG_EXPORT(void,png_set_add_alpha) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_add_alpha) PNGARG((png_structp png_ptr,
png_uint_32 filler, int flags));
#endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */
#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED)
/* Swap bytes in 16-bit depth files. */
-extern PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED)
/* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */
-extern PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \
defined(PNG_WRITE_PACKSWAP_SUPPORTED)
/* Swap packing order of pixels in bytes. */
-extern PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED)
/* Converts files to legal bit depths. */
-extern PNG_EXPORT(void,png_set_shift) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_shift) PNGARG((png_structp png_ptr,
png_color_8p true_bits));
#endif
#if defined(PNG_READ_INTERLACING_SUPPORTED) || \
defined(PNG_WRITE_INTERLACING_SUPPORTED)
/* Have the code handle the interlacing. Returns the number of passes. */
-extern PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr));
+PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr));
#endif
#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)
/* Invert monochrome files */
-extern PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr));
#endif
#ifdef PNG_READ_BACKGROUND_SUPPORTED
/* Handle alpha and tRNS by replacing with a background color. */
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr,
png_color_16p background_color, int background_gamma_code,
int need_expand, double background_gamma));
#endif
@@ -1721,14 +1721,14 @@
#ifdef PNG_READ_16_TO_8_SUPPORTED
/* Strip the second byte of information from a 16-bit depth file. */
-extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr));
#endif
#ifdef PNG_READ_QUANTIZE_SUPPORTED
/* Turn on quantizing, and reduce the palette to the number of colors
* available. Prior to libpng-1.4.2, this was png_set_dither().
*/
-extern PNG_EXPORT(void,png_set_quantize) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_quantize) PNGARG((png_structp png_ptr,
png_colorp palette, int num_palette, int maximum_colors,
png_uint_16p histogram, int full_quantize));
#endif
@@ -1738,7 +1738,7 @@
#ifdef PNG_READ_GAMMA_SUPPORTED
/* Handle gamma correction. Screen_gamma=(display_exponent) */
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr,
double screen_gamma, double default_file_gamma));
#endif
#endif
@@ -1746,73 +1746,73 @@
#ifdef PNG_WRITE_FLUSH_SUPPORTED
/* Set how many lines between output flushes - 0 for no flushing */
-extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows));
+PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows));
/* Flush the current PNG output buffer */
-extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr));
#endif
/* Optional update palette with requested transformations */
-extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr));
+PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr));
/* Optional call to update the users info structure */
-extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read one or more rows of image data. */
-extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr,
png_bytepp row, png_bytepp display_row, png_uint_32 num_rows));
#endif
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read a row of data. */
-extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr,
png_bytep row,
png_bytep display_row));
#endif
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read the whole image into memory at once. */
-extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr,
png_bytepp image));
#endif
/* Write a row of image data */
-extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr,
png_bytep row));
/* Write a few rows of image data */
-extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr,
png_bytepp row, png_uint_32 num_rows));
/* Write the image data */
-extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr,
png_bytepp image));
/* Write the end of the PNG file. */
-extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifdef PNG_SEQUENTIAL_READ_SUPPORTED
/* Read the end of the PNG file. */
-extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#endif
/* Free any memory associated with the png_info_struct */
-extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr,
png_infopp info_ptr_ptr));
/* Free any memory associated with the png_struct and the png_info_structs */
-extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp
+PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp
png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr));
/* Free any memory associated with the png_struct and the png_info_structs */
-extern PNG_EXPORT(void,png_destroy_write_struct)
+PNG_EXPORT(void,png_destroy_write_struct)
PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr));
/* Set the libpng method of handling chunk CRC errors */
-extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr,
int crit_action, int ancil_action));
/* Values for png_set_crc_action() to say how to handle CRC errors in
@@ -1842,7 +1842,7 @@
/* Set the filtering method(s) used by libpng. Currently, the only valid
* value for "method" is 0.
*/
-extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method,
+PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method,
int filters));
/* Flags for png_set_filter() to say which filters to use. The flags
@@ -1899,7 +1899,7 @@
* to the UNWEIGHTED method, but with added encoding time/computation.
*/
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr,
int heuristic_method, int num_weights, png_doublep filter_weights,
png_doublep filter_costs));
#endif
@@ -1920,19 +1920,19 @@
* for PNG images, and do considerably fewer caclulations. In the future,
* these values may not correspond directly to the zlib compression levels.
*/
-extern PNG_EXPORT(void,png_set_compression_level) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_compression_level) PNGARG((png_structp png_ptr,
int level));
-extern PNG_EXPORT(void,png_set_compression_mem_level)
+PNG_EXPORT(void,png_set_compression_mem_level)
PNGARG((png_structp png_ptr, int mem_level));
-extern PNG_EXPORT(void,png_set_compression_strategy)
+PNG_EXPORT(void,png_set_compression_strategy)
PNGARG((png_structp png_ptr, int strategy));
-extern PNG_EXPORT(void,png_set_compression_window_bits)
+PNG_EXPORT(void,png_set_compression_window_bits)
PNGARG((png_structp png_ptr, int window_bits));
-extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr,
int method));
/* These next functions are called for input/output, memory, and error
@@ -1946,7 +1946,7 @@
#ifdef PNG_STDIO_SUPPORTED
/* Initialize the input/output for the PNG file to the default functions. */
-extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr,
png_FILE_p fp));
#endif
@@ -1958,11 +1958,11 @@
* default function will be used.
*/
-extern PNG_EXPORT(void,png_set_error_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_error_fn) PNGARG((png_structp png_ptr,
png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn));
/* Return the user pointer associated with the error functions */
-extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr));
+PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr));
/* Replace the default data output functions with a user supplied one(s).
* If buffered output is not used, then output_flush_fn can be set to NULL.
@@ -1974,54 +1974,54 @@
* default flush function, which uses the standard *FILE structure, will
* be used.
*/
-extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr,
png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn));
/* Replace the default data input function with a user supplied one. */
-extern PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr,
png_voidp io_ptr, png_rw_ptr read_data_fn));
/* Return the user pointer associated with the I/O functions */
-extern PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr));
+PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(void,png_set_read_status_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_read_status_fn) PNGARG((png_structp png_ptr,
png_read_status_ptr read_row_fn));
-extern PNG_EXPORT(void,png_set_write_status_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_write_status_fn) PNGARG((png_structp png_ptr,
png_write_status_ptr write_row_fn));
#ifdef PNG_USER_MEM_SUPPORTED
/* Replace the default memory allocation functions with user supplied one(s). */
-extern PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr,
png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn));
/* Return the user pointer associated with the memory functions */
-extern PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr));
+PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr));
#endif
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
-extern PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp
+PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp
png_ptr, png_user_transform_ptr read_user_transform_fn));
#endif
#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED
-extern PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp
+PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp
png_ptr, png_user_transform_ptr write_user_transform_fn));
#endif
#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp
+PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp
png_ptr, png_voidp user_transform_ptr, int user_transform_depth,
int user_transform_channels));
/* Return the user pointer associated with the user transform functions */
-extern PNG_EXPORT(png_voidp,png_get_user_transform_ptr)
+PNG_EXPORT(png_voidp,png_get_user_transform_ptr)
PNGARG((png_structp png_ptr));
#endif
#ifdef PNG_USER_CHUNKS_SUPPORTED
-extern PNG_EXPORT(void,png_set_read_user_chunk_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_read_user_chunk_fn) PNGARG((png_structp png_ptr,
png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn));
-extern PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp
+PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp
png_ptr));
#endif
@@ -2029,45 +2029,45 @@
/* Sets the function callbacks for the push reader, and a pointer to a
* user-defined structure available to the callback functions.
*/
-extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr,
png_voidp progressive_ptr,
png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn,
png_progressive_end_ptr end_fn));
/* Returns the user pointer associated with the push read functions */
-extern PNG_EXPORT(png_voidp,png_get_progressive_ptr)
+PNG_EXPORT(png_voidp,png_get_progressive_ptr)
PNGARG((png_structp png_ptr));
/* Function to be called when data becomes available */
-extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_bytep buffer, png_size_t buffer_size));
/* Function that combines rows. Not very much different than the
* png_combine_row() call. Is this even used?????
*/
-extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr,
png_bytep old_row, png_bytep new_row));
#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
-extern PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr,
png_alloc_size_t size)) PNG_ALLOCATED;
/* Added at libpng version 1.4.0 */
-extern PNG_EXPORT(png_voidp,png_calloc) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_voidp,png_calloc) PNGARG((png_structp png_ptr,
png_alloc_size_t size)) PNG_ALLOCATED;
/* Added at libpng version 1.2.4 */
-extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr,
png_alloc_size_t size)) PNG_ALLOCATED;
/* Frees a pointer allocated by png_malloc() */
-extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr));
+PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr));
/* Free data that was allocated internally */
-extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 free_me, int num));
/* Reassign responsibility for freeing existing data, whether allocated
* by libpng or by the application */
-extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr,
png_infop info_ptr, int freer, png_uint_32 mask));
/* Assignments for png_data_freer */
#define PNG_DESTROY_WILL_FREE_DATA 1
@@ -2089,45 +2089,45 @@
#define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */
#ifdef PNG_USER_MEM_SUPPORTED
-extern PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr,
png_alloc_size_t size)) PNG_ALLOCATED;
-extern PNG_EXPORT(void,png_free_default) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_free_default) PNGARG((png_structp png_ptr,
png_voidp ptr));
#endif
#ifndef PNG_NO_ERROR_TEXT
/* Fatal error in PNG image of libpng - can't continue */
-extern PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr,
png_const_charp error_message)) PNG_NORETURN;
/* The same, but the chunk name is prepended to the error string. */
-extern PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr,
png_const_charp error_message)) PNG_NORETURN;
#else
/* Fatal error in PNG image of libpng - can't continue */
-extern PNG_EXPORT(void,png_err) PNGARG((png_structp png_ptr)) PNG_NORETURN;
+PNG_EXPORT(void,png_err) PNGARG((png_structp png_ptr)) PNG_NORETURN;
#endif
/* Non-fatal error in libpng. Can continue, but may have a problem. */
-extern PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr,
png_const_charp warning_message));
/* Non-fatal error in libpng, chunk name is prepended to message. */
-extern PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr,
png_const_charp warning_message));
#ifdef PNG_BENIGN_ERRORS_SUPPORTED
/* Benign error in libpng. Can continue, but may have a problem.
* User can choose whether to handle as a fatal error or as a warning. */
-extern PNG_EXPORT(void,png_benign_error) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_benign_error) PNGARG((png_structp png_ptr,
png_const_charp warning_message));
/* Same, chunk name is prepended to message. */
-extern PNG_EXPORT(void,png_chunk_benign_error) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_chunk_benign_error) PNGARG((png_structp png_ptr,
png_const_charp warning_message));
-extern PNG_EXPORT(void,png_set_benign_errors) PNGARG((png_structp
+PNG_EXPORT(void,png_set_benign_errors) PNGARG((png_structp
png_ptr, int allowed));
#endif
@@ -2144,108 +2144,108 @@
* png_info_struct.
*/
/* Returns "flag" if chunk data is valid in info_ptr. */
-extern PNG_EXPORT(png_uint_32,png_get_valid) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_valid) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 flag));
/* Returns number of bytes needed to hold a transformed row. */
-extern PNG_EXPORT(png_size_t,png_get_rowbytes) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_size_t,png_get_rowbytes) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifdef PNG_INFO_IMAGE_SUPPORTED
/* Returns row_pointers, which is an array of pointers to scanlines that was
* returned from png_read_png().
*/
-extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr,
png_infop info_ptr));
/* Set row_pointers, which is an array of pointers to scanlines for use
* by png_write_png().
*/
-extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_bytepp row_pointers));
#endif
/* Returns number of color channels in image. */
-extern PNG_EXPORT(png_byte,png_get_channels) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_byte,png_get_channels) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifdef PNG_EASY_ACCESS_SUPPORTED
/* Returns image width in pixels. */
-extern PNG_EXPORT(png_uint_32, png_get_image_width) PNGARG((png_structp
+PNG_EXPORT(png_uint_32, png_get_image_width) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns image height in pixels. */
-extern PNG_EXPORT(png_uint_32, png_get_image_height) PNGARG((png_structp
+PNG_EXPORT(png_uint_32, png_get_image_height) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns image bit_depth. */
-extern PNG_EXPORT(png_byte, png_get_bit_depth) PNGARG((png_structp
+PNG_EXPORT(png_byte, png_get_bit_depth) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns image color_type. */
-extern PNG_EXPORT(png_byte, png_get_color_type) PNGARG((png_structp
+PNG_EXPORT(png_byte, png_get_color_type) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns image filter_type. */
-extern PNG_EXPORT(png_byte, png_get_filter_type) PNGARG((png_structp
+PNG_EXPORT(png_byte, png_get_filter_type) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns image interlace_type. */
-extern PNG_EXPORT(png_byte, png_get_interlace_type) PNGARG((png_structp
+PNG_EXPORT(png_byte, png_get_interlace_type) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns image compression_type. */
-extern PNG_EXPORT(png_byte, png_get_compression_type) PNGARG((png_structp
+PNG_EXPORT(png_byte, png_get_compression_type) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns image resolution in pixels per meter, from pHYs chunk data. */
-extern PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp
+PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp
png_ptr, png_infop info_ptr));
-extern PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp
+PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp
png_ptr, png_infop info_ptr));
-extern PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp
+PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp
png_ptr, png_infop info_ptr));
/* Returns pixel aspect ratio, computed from pHYs chunk data. */
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp
+PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp
png_ptr, png_infop info_ptr));
#endif
/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */
-extern PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp
+PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp
png_ptr, png_infop info_ptr));
-extern PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp
+PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp
png_ptr, png_infop info_ptr));
-extern PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp
+PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp
png_ptr, png_infop info_ptr));
-extern PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp
+PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp
png_ptr, png_infop info_ptr));
#endif /* PNG_EASY_ACCESS_SUPPORTED */
/* Returns pointer to signature string read from PNG header */
-extern PNG_EXPORT(png_bytep,png_get_signature) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_bytep,png_get_signature) PNGARG((png_structp png_ptr,
png_infop info_ptr));
#ifdef PNG_bKGD_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_bKGD) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_bKGD) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_color_16p *background));
#endif
#ifdef PNG_bKGD_SUPPORTED
-extern PNG_EXPORT(void,png_set_bKGD) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_bKGD) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_color_16p background));
#endif
#ifdef PNG_cHRM_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_cHRM) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_cHRM) PNGARG((png_structp png_ptr,
png_infop info_ptr, double *white_x, double *white_y, double *red_x,
double *red_y, double *green_x, double *green_y, double *blue_x,
double *blue_y));
#endif
#ifdef PNG_FIXED_POINT_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_fixed_point *int_white_x, png_fixed_point
*int_white_y, png_fixed_point *int_red_x, png_fixed_point *int_red_y,
png_fixed_point *int_green_x, png_fixed_point *int_green_y, png_fixed_point
@@ -2255,12 +2255,12 @@
#ifdef PNG_cHRM_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_cHRM) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_cHRM) PNGARG((png_structp png_ptr,
png_infop info_ptr, double white_x, double white_y, double red_x,
double red_y, double green_x, double green_y, double blue_x, double blue_y));
#endif
#ifdef PNG_FIXED_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y,
png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point
int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x,
@@ -2270,131 +2270,131 @@
#ifdef PNG_gAMA_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_gAMA) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_gAMA) PNGARG((png_structp png_ptr,
png_infop info_ptr, double *file_gamma));
#endif
-extern PNG_EXPORT(png_uint_32,png_get_gAMA_fixed) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_gAMA_fixed) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_fixed_point *int_file_gamma));
#endif
#ifdef PNG_gAMA_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_gAMA) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_gAMA) PNGARG((png_structp png_ptr,
png_infop info_ptr, double file_gamma));
#endif
-extern PNG_EXPORT(void,png_set_gAMA_fixed) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_gAMA_fixed) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_fixed_point int_file_gamma));
#endif
#ifdef PNG_hIST_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_hIST) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_hIST) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_16p *hist));
#endif
#ifdef PNG_hIST_SUPPORTED
-extern PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_16p hist));
#endif
-extern PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 *width, png_uint_32 *height,
int *bit_depth, int *color_type, int *interlace_method,
int *compression_method, int *filter_method));
-extern PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth,
int color_type, int interlace_method, int compression_method,
int filter_method));
#ifdef PNG_oFFs_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_int_32 *offset_x, png_int_32 *offset_y,
int *unit_type));
#endif
#ifdef PNG_oFFs_SUPPORTED
-extern PNG_EXPORT(void,png_set_oFFs) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_oFFs) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_int_32 offset_x, png_int_32 offset_y,
int unit_type));
#endif
#ifdef PNG_pCAL_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_pCAL) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_pCAL) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_charp *purpose, png_int_32 *X0, png_int_32 *X1,
int *type, int *nparams, png_charp *units, png_charpp *params));
#endif
#ifdef PNG_pCAL_SUPPORTED
-extern PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1,
int type, int nparams, png_charp units, png_charpp params));
#endif
#ifdef PNG_pHYs_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_pHYs) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_pHYs) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type));
#endif
#ifdef PNG_pHYs_SUPPORTED
-extern PNG_EXPORT(void,png_set_pHYs) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_pHYs) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type));
#endif
-extern PNG_EXPORT(png_uint_32,png_get_PLTE) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_PLTE) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_colorp *palette, int *num_palette));
-extern PNG_EXPORT(void,png_set_PLTE) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_PLTE) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_colorp palette, int num_palette));
#ifdef PNG_sBIT_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_sBIT) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_sBIT) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_color_8p *sig_bit));
#endif
#ifdef PNG_sBIT_SUPPORTED
-extern PNG_EXPORT(void,png_set_sBIT) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_sBIT) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_color_8p sig_bit));
#endif
#ifdef PNG_sRGB_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_sRGB) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_sRGB) PNGARG((png_structp png_ptr,
png_infop info_ptr, int *intent));
#endif
#ifdef PNG_sRGB_SUPPORTED
-extern PNG_EXPORT(void,png_set_sRGB) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_sRGB) PNGARG((png_structp png_ptr,
png_infop info_ptr, int intent));
-extern PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr,
png_infop info_ptr, int intent));
#endif
#ifdef PNG_iCCP_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_charpp name, int *compression_type,
png_charpp profile, png_uint_32 *proflen));
/* Note to maintainer: profile should be png_bytepp */
#endif
#ifdef PNG_iCCP_SUPPORTED
-extern PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_charp name, int compression_type,
png_charp profile, png_uint_32 proflen));
/* Note to maintainer: profile should be png_bytep */
#endif
#ifdef PNG_sPLT_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_sPLT) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_sPLT) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_sPLT_tpp entries));
#endif
#ifdef PNG_sPLT_SUPPORTED
-extern PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_sPLT_tp entries, int nentries));
#endif
#ifdef PNG_TEXT_SUPPORTED
/* png_get_text also returns the number of text chunks in *num_text */
-extern PNG_EXPORT(png_uint_32,png_get_text) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_text) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_textp *text_ptr, int *num_text));
#endif
@@ -2406,28 +2406,28 @@
*/
#ifdef PNG_TEXT_SUPPORTED
-extern PNG_EXPORT(void,png_set_text) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_text) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_textp text_ptr, int num_text));
#endif
#ifdef PNG_tIME_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_tIME) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_tIME) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_timep *mod_time));
#endif
#ifdef PNG_tIME_SUPPORTED
-extern PNG_EXPORT(void,png_set_tIME) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_tIME) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_timep mod_time));
#endif
#ifdef PNG_tRNS_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_tRNS) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_tRNS) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_bytep *trans_alpha, int *num_trans,
png_color_16p *trans_color));
#endif
#ifdef PNG_tRNS_SUPPORTED
-extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_bytep trans_alpha, int num_trans,
png_color_16p trans_color));
#endif
@@ -2437,11 +2437,11 @@
#ifdef PNG_sCAL_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_sCAL) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_sCAL) PNGARG((png_structp png_ptr,
png_infop info_ptr, int *unit, double *width, double *height));
#else
#ifdef PNG_FIXED_POINT_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr,
+PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr,
png_infop info_ptr, int *unit, png_charpp swidth, png_charpp sheight));
#endif
#endif
@@ -2449,11 +2449,11 @@
#ifdef PNG_sCAL_SUPPORTED
#ifdef PNG_FLOATING_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr,
png_infop info_ptr, int unit, double width, double height));
#else
#ifdef PNG_FIXED_POINT_SUPPORTED
-extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr,
png_infop info_ptr, int unit, png_charp swidth, png_charp sheight));
#endif
#endif
@@ -2469,17 +2469,17 @@
= 2: keep only if safe-to-copy
= 3: keep even if unsafe-to-copy
*/
-extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp
+PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp
png_ptr, int keep, png_bytep chunk_list, int num_chunks));
PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep
chunk_name));
#endif
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
-extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr,
png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns));
-extern PNG_EXPORT(void, png_set_unknown_chunk_location)
+PNG_EXPORT(void, png_set_unknown_chunk_location)
PNGARG((png_structp png_ptr, png_infop info_ptr, int chunk, int location));
-extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp
+PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp
png_ptr, png_infop info_ptr, png_unknown_chunkpp entries));
#endif
@@ -2487,29 +2487,29 @@
* If you need to turn it off for a chunk that your application has freed,
* you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK);
*/
-extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr,
png_infop info_ptr, int mask));
#ifdef PNG_INFO_IMAGE_SUPPORTED
/* The "params" pointer is currently not used and is for future expansion. */
-extern PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr,
png_infop info_ptr,
int transforms,
png_voidp params));
-extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
+PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
png_infop info_ptr,
int transforms,
png_voidp params));
#endif
-extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp
+PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr));
+PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr));
+PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp
png_ptr));
-extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
+PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
#ifdef PNG_MNG_FEATURES_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
+PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
png_ptr, png_uint_32 mng_features_permitted));
#endif
@@ -2523,27 +2523,27 @@
* messages before passing them to the error or warning handler.
*/
#ifdef PNG_ERROR_NUMBERS_SUPPORTED
-extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
+PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp
png_ptr, png_uint_32 strip_mode));
#endif
/* Added in libpng-1.2.6 */
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
-extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp
+PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp
png_ptr, png_uint_32 user_width_max, png_uint_32 user_height_max));
-extern PNG_EXPORT(png_uint_32,png_get_user_width_max) PNGARG((png_structp
+PNG_EXPORT(png_uint_32,png_get_user_width_max) PNGARG((png_structp
png_ptr));
-extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp
+PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp
png_ptr));
/* Added in libpng-1.4.0 */
-extern PNG_EXPORT(void,png_set_chunk_cache_max) PNGARG((png_structp
+PNG_EXPORT(void,png_set_chunk_cache_max) PNGARG((png_structp
png_ptr, png_uint_32 user_chunk_cache_max));
-extern PNG_EXPORT(png_uint_32,png_get_chunk_cache_max)
+PNG_EXPORT(png_uint_32,png_get_chunk_cache_max)
PNGARG((png_structp png_ptr));
/* Added in libpng-1.4.1 */
-extern PNG_EXPORT(void,png_set_chunk_malloc_max) PNGARG((png_structp
+PNG_EXPORT(void,png_set_chunk_malloc_max) PNGARG((png_structp
png_ptr, png_alloc_size_t user_chunk_cache_max));
-extern PNG_EXPORT(png_alloc_size_t,png_get_chunk_malloc_max)
+PNG_EXPORT(png_alloc_size_t,png_get_chunk_malloc_max)
PNGARG((png_structp png_ptr));
#endif
@@ -2571,9 +2571,9 @@
/* Added in libpng-1.4.0 */
#ifdef PNG_IO_STATE_SUPPORTED
-extern PNG_EXPORT(png_uint_32,png_get_io_state) PNGARG((png_structp png_ptr));
+PNG_EXPORT(png_uint_32,png_get_io_state) PNGARG((png_structp png_ptr));
-extern PNG_EXPORT(png_bytep,png_get_io_chunk_name)
+PNG_EXPORT(png_bytep,png_get_io_chunk_name)
PNGARG((png_structp png_ptr));
/* The flags returned by png_get_io_state() are the following: */
@@ -2656,27 +2656,27 @@
((png_int_32)(*((buf) + 3))))
#endif
#else
-extern PNG_EXPORT(png_uint_32,png_get_uint_32) PNGARG((png_bytep buf));
-extern PNG_EXPORT(png_uint_16,png_get_uint_16) PNGARG((png_bytep buf));
+PNG_EXPORT(png_uint_32,png_get_uint_32) PNGARG((png_bytep buf));
+PNG_EXPORT(png_uint_16,png_get_uint_16) PNGARG((png_bytep buf));
#ifdef PNG_GET_INT_32_SUPPORTED
-extern PNG_EXPORT(png_int_32,png_get_int_32) PNGARG((png_bytep buf));
+PNG_EXPORT(png_int_32,png_get_int_32) PNGARG((png_bytep buf));
#endif
#endif
-extern PNG_EXPORT(png_uint_32,png_get_uint_31)
+PNG_EXPORT(png_uint_32,png_get_uint_31)
PNGARG((png_structp png_ptr, png_bytep buf));
/* No png_get_int_16 -- may be added if there's a real need for it. */
/* Place a 32-bit number into a buffer in PNG byte order (big-endian). */
-extern PNG_EXPORT(void,png_save_uint_32)
+PNG_EXPORT(void,png_save_uint_32)
PNGARG((png_bytep buf, png_uint_32 i));
-extern PNG_EXPORT(void,png_save_int_32)
+PNG_EXPORT(void,png_save_int_32)
PNGARG((png_bytep buf, png_int_32 i));
/* Place a 16-bit number into a buffer in PNG byte order.
* The parameter is declared unsigned int, not png_uint_16,
* just to avoid potential problems on pre-ANSI C compilers.
*/
-extern PNG_EXPORT(void,png_save_uint_16)
+PNG_EXPORT(void,png_save_uint_16)
PNGARG((png_bytep buf, unsigned int i));
/* No png_save_int_16 -- may be added if there's a real need for it. */
diff --git a/pngpriv.h b/pngpriv.h
index 940623f..10e81dc 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -1,7 +1,7 @@
/* pngpriv.h - private declarations for use inside libpng
*
- * libpng version 1.4.4beta01 - June 26, 2010
+ * libpng version 1.4.4beta01 - July 12, 2010
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2010 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -28,14 +28,16 @@
#include <stdlib.h>
+#ifndef PNG_EXTERN
/* The functions exported by PNG_EXTERN are internal functions, which
* aren't usually used outside the library (as far as I know), so it is
* debatable if they should be exported at all. In the future, when it
* is possible to have run-time registry of chunk-handling functions,
* some of these will be made available again.
-#define PNG_EXTERN extern
+# define PNG_EXTERN extern
*/
-#define PNG_EXTERN
+# define PNG_EXTERN
+#endif
/* Other defines specific to compilers can go here. Try to keep
* them inside an appropriate ifdef/endif pair for portability.
@@ -672,7 +674,7 @@
#endif
#ifdef PNG_READ_iCCP_SUPPORTED
-extern void png_handle_iCCP PNGARG((png_structp png_ptr, png_infop info_ptr,
+PNG_EXTERN void png_handle_iCCP PNGARG((png_structp png_ptr, png_infop info_ptr,
png_uint_32 length));
#endif /* PNG_READ_iCCP_SUPPORTED */
@@ -707,7 +709,7 @@
#endif
#ifdef PNG_READ_sPLT_SUPPORTED
-extern void png_handle_sPLT PNGARG((png_structp png_ptr, png_infop info_ptr,
+PNG_EXTERN void png_handle_sPLT PNGARG((png_structp png_ptr, png_infop info_ptr,
png_uint_32 length));
#endif /* PNG_READ_sPLT_SUPPORTED */
@@ -828,14 +830,14 @@
int filter_type));
/* Free all memory used by the read (old method - NOT DLL EXPORTED) */
-extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr,
+PNG_EXTERN void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr,
png_infop end_info_ptr));
/* Free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */
-extern void png_write_destroy PNGARG((png_structp png_ptr));
+PNG_EXTERN void png_write_destroy PNGARG((png_structp png_ptr));
#ifdef USE_FAR_KEYWORD /* memory model conversion function */
-extern void *png_far_to_near PNGARG((png_structp png_ptr,png_voidp ptr,
+PNG_EXTERN void *png_far_to_near PNGARG((png_structp png_ptr,png_voidp ptr,
int check));
#endif /* USE_FAR_KEYWORD */
