[devel] Added const_png_structp and const_png_infop types, and used them in
prototypes for most png_get_*() functions.
diff --git a/png.h b/png.h
index f4bd6c7..4ad8c20 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
- * libpng version 1.5.1rc01 - January 21, 2011
+ * libpng version 1.5.1beta07 - January 22, 2011
* Copyright (c) 1998-2011 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 1.5.1rc01 - January 21, 2011: Glenn
+ * libpng versions 0.97, January 1998, through 1.5.1beta07 - January 22, 2011: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -176,7 +176,7 @@
*
* This code is released under the libpng license.
*
- * libpng versions 1.2.6, August 15, 2004, through 1.5.1rc01, January 21, 2011, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.1beta07, January 22, 2011, are
* Copyright (c) 2004, 2006-2011 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:
@@ -288,13 +288,13 @@
* Y2K compliance in libpng:
* =========================
*
- * January 21, 2011
+ * January 22, 2011
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
*
* This is your unofficial assurance that libpng from version 0.71 and
- * upward through 1.5.1rc01 are Y2K compliant. It is my belief that
+ * upward through 1.5.1beta07 are Y2K compliant. It is my belief that
* earlier versions were also Y2K compliant.
*
* Libpng only has three year fields. One is a 2-byte unsigned integer
@@ -350,9 +350,9 @@
*/
/* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.5.1rc01"
+#define PNG_LIBPNG_VER_STRING "1.5.1beta07"
#define PNG_HEADER_VERSION_STRING \
- " libpng version 1.5.1rc01 - January 21, 2011\n"
+ " libpng version 1.5.1beta07 - January 22, 2011\n"
#define PNG_LIBPNG_VER_SONUM 15
#define PNG_LIBPNG_VER_DLLNUM 15
@@ -365,7 +365,7 @@
* PNG_LIBPNG_VER_STRING, omitting any leading zero:
*/
-#define PNG_LIBPNG_VER_BUILD 01
+#define PNG_LIBPNG_VER_BUILD 07
/* Release Status */
#define PNG_LIBPNG_BUILD_ALPHA 1
@@ -507,7 +507,7 @@
/* This triggers a compiler error in png.c, if png.c and png.h
* do not agree upon the version number.
*/
-typedef char* png_libpng_version_1_5_1rc01;
+typedef char* png_libpng_version_1_5_1beta07;
/* Three color definitions. The order of the red, green, and blue, (and the
* exact size) is not important, although the size of the fields need to
@@ -663,6 +663,7 @@
typedef struct png_info_def png_info;
typedef png_info FAR * png_infop;
+typedef PNG_CONST png_info FAR * const_png_infop;
typedef png_info FAR * FAR * png_infopp;
/* Maximum positive integer used in PNG is (2^31)-1 */
@@ -790,6 +791,7 @@
* expected to return the read data in the buffer.
*/
typedef struct png_struct_def png_struct;
+typedef PNG_CONST png_struct FAR * const_png_structp;
typedef png_struct FAR * png_structp;
typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp), );
@@ -945,7 +947,7 @@
PNG_ALLOCATED);
PNG_EXPORT(6, png_size_t, png_get_compression_buffer_size,
- (png_structp png_ptr));
+ (const_png_structp png_ptr));
PNG_EXPORT(7, void, png_set_compression_buffer_size, (png_structp png_ptr,
png_size_t size));
@@ -1072,7 +1074,8 @@
PNG_FIXED_EXPORT(33, void, png_set_rgb_to_gray_fixed, (png_structp png_ptr,
int error_action, png_fixed_point red, png_fixed_point green));
-PNG_EXPORT(34, png_byte, png_get_rgb_to_gray_status, (png_structp png_ptr));
+PNG_EXPORT(34, png_byte, png_get_rgb_to_gray_status, (const_png_structp
+ png_ptr));
#endif
PNG_EXPORT(35, void, png_build_grayscale_palette, (int bit_depth,
@@ -1409,7 +1412,7 @@
png_error_ptr error_fn, png_error_ptr warning_fn));
/* Return the user pointer associated with the error functions */
-PNG_EXPORT(76, png_voidp, png_get_error_ptr, (png_structp png_ptr));
+PNG_EXPORT(76, png_voidp, png_get_error_ptr, (const_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.
@@ -1442,7 +1445,7 @@
PNG_EXPORT(82, void, png_set_mem_fn, (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 */
-PNG_EXPORT(83, png_voidp, png_get_mem_ptr, (png_structp png_ptr));
+PNG_EXPORT(83, png_voidp, png_get_mem_ptr, (const_png_structp png_ptr));
#endif
#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED
@@ -1461,13 +1464,14 @@
png_voidp user_transform_ptr, int user_transform_depth,
int user_transform_channels));
/* Return the user pointer associated with the user transform functions */
-PNG_EXPORT(87, png_voidp, png_get_user_transform_ptr, (png_structp png_ptr));
+PNG_EXPORT(87, png_voidp, png_get_user_transform_ptr,
+ (const_png_structp png_ptr));
#endif
#ifdef PNG_USER_CHUNKS_SUPPORTED
PNG_EXPORT(88, void, png_set_read_user_chunk_fn, (png_structp png_ptr,
png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn));
-PNG_EXPORT(89, png_voidp, png_get_user_chunk_ptr, (png_structp png_ptr));
+PNG_EXPORT(89, png_voidp, png_get_user_chunk_ptr, (const_png_structp png_ptr));
#endif
#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
@@ -1479,7 +1483,7 @@
png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn));
/* Returns the user pointer associated with the push read functions */
-PNG_EXPORT(91, png_voidp, png_get_progressive_ptr, (png_structp png_ptr));
+PNG_EXPORT(91, png_voidp, png_get_progressive_ptr, (const_png_structp png_ptr));
/* Function to be called when data becomes available */
PNG_EXPORT(92, void, png_process_data,
@@ -1605,92 +1609,92 @@
*/
/* Returns "flag" if chunk data is valid in info_ptr. */
PNG_EXPORT(110, png_uint_32, png_get_valid,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_uint_32 flag));
/* Returns number of bytes needed to hold a transformed row. */
-PNG_EXPORT(111, png_size_t, png_get_rowbytes, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(111, png_size_t, png_get_rowbytes, (const_png_structp png_ptr,
+ const_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().
*/
PNG_EXPORT(112, png_bytepp, png_get_rows,
- (png_structp png_ptr, png_infop info_ptr));
+ (const_png_structp png_ptr, const_png_infop info_ptr));
/* Set row_pointers, which is an array of pointers to scanlines for use
* by png_write_png().
*/
-PNG_EXPORT(113, void, png_set_rows, (png_structp png_ptr, png_infop info_ptr,
- png_bytepp row_pointers));
+PNG_EXPORT(113, void, png_set_rows, (png_structp png_ptr,
+ png_infop info_ptr, png_bytepp row_pointers));
#endif
/* Returns number of color channels in image. */
PNG_EXPORT(114, png_byte, png_get_channels,
- (png_structp png_ptr, png_infop info_ptr));
+ (const_png_structp png_ptr, const_png_infop info_ptr));
#ifdef PNG_EASY_ACCESS_SUPPORTED
/* Returns image width in pixels. */
-PNG_EXPORT(115, png_uint_32, png_get_image_width, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(115, png_uint_32, png_get_image_width, (const_png_structp png_ptr,
+ const_png_infop info_ptr));
/* Returns image height in pixels. */
-PNG_EXPORT(116, png_uint_32, png_get_image_height, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(116, png_uint_32, png_get_image_height, (const_png_structp png_ptr,
+ const_png_infop info_ptr));
/* Returns image bit_depth. */
PNG_EXPORT(117, png_byte, png_get_bit_depth,
- (png_structp png_ptr, png_infop info_ptr));
+ (const_png_structp png_ptr, const_png_infop info_ptr));
/* Returns image color_type. */
-PNG_EXPORT(118, png_byte, png_get_color_type, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(118, png_byte, png_get_color_type, (const_png_structp png_ptr,
+ const_png_infop info_ptr));
/* Returns image filter_type. */
-PNG_EXPORT(119, png_byte, png_get_filter_type, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(119, png_byte, png_get_filter_type, (const_png_structp png_ptr,
+ const_png_infop info_ptr));
/* Returns image interlace_type. */
-PNG_EXPORT(120, png_byte, png_get_interlace_type, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(120, png_byte, png_get_interlace_type, (const_png_structp png_ptr,
+ const_png_infop info_ptr));
/* Returns image compression_type. */
-PNG_EXPORT(121, png_byte, png_get_compression_type, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(121, png_byte, png_get_compression_type, (const_png_structp png_ptr,
+ const_png_infop info_ptr));
/* Returns image resolution in pixels per meter, from pHYs chunk data. */
-PNG_EXPORT(122, png_uint_32, png_get_pixels_per_meter, (png_structp png_ptr,
- png_infop info_ptr));
-PNG_EXPORT(123, png_uint_32, png_get_x_pixels_per_meter, (png_structp png_ptr,
- png_infop info_ptr));
-PNG_EXPORT(124, png_uint_32, png_get_y_pixels_per_meter, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(122, png_uint_32, png_get_pixels_per_meter,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
+PNG_EXPORT(123, png_uint_32, png_get_x_pixels_per_meter,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
+PNG_EXPORT(124, png_uint_32, png_get_y_pixels_per_meter,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
/* Returns pixel aspect ratio, computed from pHYs chunk data. */
-PNG_FP_EXPORT(125, float, png_get_pixel_aspect_ratio, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_FP_EXPORT(125, float, png_get_pixel_aspect_ratio,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
PNG_FIXED_EXPORT(210, png_fixed_point, png_get_pixel_aspect_ratio_fixed,
- (png_structp png_ptr, png_infop info_ptr));
+ (const_png_structp png_ptr, const_png_infop info_ptr));
/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */
-PNG_EXPORT(126, png_int_32, png_get_x_offset_pixels, (png_structp png_ptr,
- png_infop info_ptr));
-PNG_EXPORT(127, png_int_32, png_get_y_offset_pixels, (png_structp png_ptr,
- png_infop info_ptr));
-PNG_EXPORT(128, png_int_32, png_get_x_offset_microns, (png_structp png_ptr,
- png_infop info_ptr));
-PNG_EXPORT(129, png_int_32, png_get_y_offset_microns, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(126, png_int_32, png_get_x_offset_pixels,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
+PNG_EXPORT(127, png_int_32, png_get_y_offset_pixels,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
+PNG_EXPORT(128, png_int_32, png_get_x_offset_microns,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
+PNG_EXPORT(129, png_int_32, png_get_y_offset_microns,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
#endif /* PNG_EASY_ACCESS_SUPPORTED */
/* Returns pointer to signature string read from PNG header */
-PNG_EXPORT(130, png_const_bytep, png_get_signature, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(130, png_const_bytep, png_get_signature,
+ (const_png_structp png_ptr, png_infop info_ptr));
#ifdef PNG_bKGD_SUPPORTED
PNG_EXPORT(131, png_uint_32, png_get_bKGD,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, png_infop info_ptr,
png_color_16p *background));
#endif
@@ -1700,13 +1704,14 @@
#endif
#ifdef PNG_cHRM_SUPPORTED
-PNG_FP_EXPORT(133, png_uint_32, png_get_cHRM, (png_structp png_ptr,
- png_infop info_ptr, double *white_x, double *white_y, double *red_x,
+PNG_FP_EXPORT(133, png_uint_32, png_get_cHRM, (const_png_structp png_ptr,
+ const_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));
#ifdef PNG_FIXED_POINT_SUPPORTED /* Otherwise not implemented */
-PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed, (png_structp png_ptr,
- png_infop info_ptr, png_fixed_point *int_white_x,
+PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed,
+ (const_png_structp png_ptr,
+ const_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,
@@ -1729,28 +1734,29 @@
#ifdef PNG_gAMA_SUPPORTED
PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
double *file_gamma));
-PNG_FIXED_EXPORT(138, png_uint_32, png_get_gAMA_fixed, (png_structp png_ptr,
- png_infop info_ptr, png_fixed_point *int_file_gamma));
+PNG_FIXED_EXPORT(138, png_uint_32, png_get_gAMA_fixed,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
+ png_fixed_point *int_file_gamma));
#endif
#ifdef PNG_gAMA_SUPPORTED
-PNG_FP_EXPORT(139, void, png_set_gAMA, (png_structp png_ptr, png_infop info_ptr,
- double file_gamma));
+PNG_FP_EXPORT(139, void, png_set_gAMA, (png_structp png_ptr,
+ png_infop info_ptr, double file_gamma));
PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_structp png_ptr,
png_infop info_ptr, png_fixed_point int_file_gamma));
#endif
#ifdef PNG_hIST_SUPPORTED
PNG_EXPORT(141, png_uint_32, png_get_hIST,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_uint_16p *hist));
#endif
#ifdef PNG_hIST_SUPPORTED
-PNG_EXPORT(142, void, png_set_hIST, (png_structp png_ptr, png_infop info_ptr,
- png_const_uint_16p hist));
+PNG_EXPORT(142, void, png_set_hIST, (png_structp png_ptr,
+ png_infop info_ptr, png_const_uint_16p hist));
#endif
PNG_EXPORT(143, png_uint_32, png_get_IHDR,
@@ -1765,7 +1771,7 @@
#ifdef PNG_oFFs_SUPPORTED
PNG_EXPORT(145, png_uint_32, png_get_oFFs,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type));
#endif
@@ -1777,21 +1783,22 @@
#ifdef PNG_pCAL_SUPPORTED
PNG_EXPORT(147, png_uint_32, png_get_pCAL,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_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
-PNG_EXPORT(148, void, png_set_pCAL, (png_structp png_ptr, png_infop info_ptr,
+PNG_EXPORT(148, void, png_set_pCAL, (png_structp png_ptr,
+ png_infop info_ptr,
png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type,
int nparams, png_const_charp units, png_charpp params));
#endif
#ifdef PNG_pHYs_SUPPORTED
PNG_EXPORT(149, png_uint_32, png_get_pHYs,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type));
#endif
@@ -1802,7 +1809,7 @@
#endif
PNG_EXPORT(151, png_uint_32, png_get_PLTE,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_colorp *palette, int *num_palette));
PNG_EXPORT(152, void, png_set_PLTE,
@@ -1811,7 +1818,7 @@
#ifdef PNG_sBIT_SUPPORTED
PNG_EXPORT(153, png_uint_32, png_get_sBIT,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, png_infop info_ptr,
png_color_8p *sig_bit));
#endif
@@ -1821,8 +1828,8 @@
#endif
#ifdef PNG_sRGB_SUPPORTED
-PNG_EXPORT(155, png_uint_32, png_get_sRGB,
- (png_structp png_ptr, png_infop info_ptr, int *intent));
+PNG_EXPORT(155, png_uint_32, png_get_sRGB, (const_png_structp png_ptr,
+ const_png_infop info_ptr, int *intent));
#endif
#ifdef PNG_sRGB_SUPPORTED
@@ -1834,7 +1841,7 @@
#ifdef PNG_iCCP_SUPPORTED
PNG_EXPORT(158, png_uint_32, png_get_iCCP,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_charpp name, int *compression_type, png_bytepp profile,
png_uint_32 *proflen));
#endif
@@ -1848,7 +1855,7 @@
#ifdef PNG_sPLT_SUPPORTED
PNG_EXPORT(160, png_uint_32, png_get_sPLT,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_sPLT_tpp entries));
#endif
@@ -1861,7 +1868,7 @@
#ifdef PNG_TEXT_SUPPORTED
/* png_get_text also returns the number of text chunks in *num_text */
PNG_EXPORT(162, png_uint_32, png_get_text,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
png_textp *text_ptr, int *num_text));
#endif
@@ -1880,7 +1887,7 @@
#ifdef PNG_tIME_SUPPORTED
PNG_EXPORT(164, png_uint_32, png_get_tIME,
- (png_structp png_ptr, png_infop info_ptr, png_timep *mod_time));
+ (const_png_structp png_ptr, png_infop info_ptr, png_timep *mod_time));
#endif
#ifdef PNG_tIME_SUPPORTED
@@ -1890,7 +1897,7 @@
#ifdef PNG_tRNS_SUPPORTED
PNG_EXPORT(166, png_uint_32, png_get_tRNS,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, png_infop info_ptr,
png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color));
#endif
@@ -1903,7 +1910,7 @@
#ifdef PNG_sCAL_SUPPORTED
PNG_FP_EXPORT(168, png_uint_32, png_get_sCAL,
- (png_structp png_ptr, png_infop info_ptr,
+ (const_png_structp png_ptr, const_png_infop info_ptr,
int *unit, double *width, double *height));
#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED
/* NOTE: this API is currently implemented using floating point arithmetic,
@@ -1911,13 +1918,14 @@
* In any case the range of values supported by png_fixed_point is small and it
* is highly recommended that png_get_sCAL_s be used instead.
*/
-PNG_FIXED_EXPORT(214, png_uint_32, png_get_sCAL_fixed, (png_structp png_ptr,
- png_infop info_ptr, int *unit, png_fixed_point *width,
+PNG_FIXED_EXPORT(214, png_uint_32, png_get_sCAL_fixed,
+ (png_structp png_ptr, const_png_infop info_ptr, int *unit,
+ png_fixed_point *width,
png_fixed_point *height));
#endif
PNG_EXPORT(169, png_uint_32, png_get_sCAL_s,
- (png_structp png_ptr,
- png_infop info_ptr, int *unit, png_charpp swidth, png_charpp sheight));
+ (const_png_structp png_ptr, const_png_infop info_ptr,
+ int *unit, png_charpp swidth, png_charpp sheight));
PNG_FP_EXPORT(170, void, png_set_sCAL,
(png_structp png_ptr, png_infop info_ptr,
@@ -1948,11 +1956,12 @@
#endif
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
PNG_EXPORT(174, void, png_set_unknown_chunks, (png_structp png_ptr,
- png_infop info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns));
-PNG_EXPORT(175, void, png_set_unknown_chunk_location, (png_structp png_ptr,
- png_infop info_ptr, int chunk, int location));
-PNG_EXPORT(176, int, png_get_unknown_chunks, (png_structp png_ptr,
- png_infop info_ptr, png_unknown_chunkpp entries));
+ png_infop info_ptr, png_const_unknown_chunkp unknowns,
+ int num_unknowns));
+PNG_EXPORT(175, void, png_set_unknown_chunk_location,
+ (png_structp png_ptr, png_infop info_ptr, int chunk, int location));
+PNG_EXPORT(176, int, png_get_unknown_chunks, (const_png_structp png_ptr,
+ const_png_infop info_ptr, png_unknown_chunkpp entries));
#endif
/* Png_free_data() will turn off the "valid" flag for anything it frees.
@@ -1970,10 +1979,14 @@
int transforms, png_voidp params));
#endif
-PNG_EXPORT(180, png_const_charp, png_get_copyright, (png_structp png_ptr));
-PNG_EXPORT(181, png_const_charp, png_get_header_ver, (png_structp png_ptr));
-PNG_EXPORT(182, png_const_charp, png_get_header_version, (png_structp png_ptr));
-PNG_EXPORT(183, png_const_charp, png_get_libpng_ver, (png_structp png_ptr));
+PNG_EXPORT(180, png_const_charp, png_get_copyright,
+ (const_png_structp png_ptr));
+PNG_EXPORT(181, png_const_charp, png_get_header_ver,
+ (const_png_structp png_ptr));
+PNG_EXPORT(182, png_const_charp, png_get_header_version,
+ (const_png_structp png_ptr));
+PNG_EXPORT(183, png_const_charp, png_get_libpng_ver,
+ (const_png_structp png_ptr));
#ifdef PNG_MNG_FEATURES_SUPPORTED
PNG_EXPORT(184, png_uint_32, png_permit_mng_features, (png_structp png_ptr,
@@ -1999,46 +2012,49 @@
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
PNG_EXPORT(186, void, png_set_user_limits, (png_structp png_ptr,
png_uint_32 user_width_max, png_uint_32 user_height_max));
-PNG_EXPORT(187, png_uint_32, png_get_user_width_max, (png_structp png_ptr));
-PNG_EXPORT(188, png_uint_32, png_get_user_height_max, (png_structp png_ptr));
+PNG_EXPORT(187, png_uint_32, png_get_user_width_max,
+ (const_png_structp png_ptr));
+PNG_EXPORT(188, png_uint_32, png_get_user_height_max,
+ (const_png_structp png_ptr));
/* Added in libpng-1.4.0 */
PNG_EXPORT(189, void, png_set_chunk_cache_max, (png_structp png_ptr,
png_uint_32 user_chunk_cache_max));
-PNG_EXPORT(190, png_uint_32, png_get_chunk_cache_max, (png_structp png_ptr));
+PNG_EXPORT(190, png_uint_32, png_get_chunk_cache_max,
+ (const_png_structp png_ptr));
/* Added in libpng-1.4.1 */
PNG_EXPORT(191, void, png_set_chunk_malloc_max, (png_structp png_ptr,
png_alloc_size_t user_chunk_cache_max));
PNG_EXPORT(192, png_alloc_size_t, png_get_chunk_malloc_max,
- (png_structp png_ptr));
+ (const_png_structp png_ptr));
#endif
#if defined(PNG_INCH_CONVERSIONS_SUPPORTED)
-PNG_EXPORT(193, png_uint_32, png_get_pixels_per_inch, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(193, png_uint_32, png_get_pixels_per_inch,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
-PNG_EXPORT(194, png_uint_32, png_get_x_pixels_per_inch, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(194, png_uint_32, png_get_x_pixels_per_inch,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
-PNG_EXPORT(195, png_uint_32, png_get_y_pixels_per_inch, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_EXPORT(195, png_uint_32, png_get_y_pixels_per_inch,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
-PNG_FP_EXPORT(196, float, png_get_x_offset_inches, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_FP_EXPORT(196, float, png_get_x_offset_inches,
+ (const_png_structp png_ptr, const_png_infop info_ptr));
#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
PNG_FIXED_EXPORT(211, png_fixed_point, png_get_x_offset_inches_fixed,
- (png_structp png_ptr, png_infop info_ptr));
+ (png_structp png_ptr, const_png_infop info_ptr));
#endif
-PNG_FP_EXPORT(197, float, png_get_y_offset_inches, (png_structp png_ptr,
- png_infop info_ptr));
+PNG_FP_EXPORT(197, float, png_get_y_offset_inches, (const_png_structp png_ptr,
+ const_png_infop info_ptr));
#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */
PNG_FIXED_EXPORT(212, png_fixed_point, png_get_y_offset_inches_fixed,
- (png_structp png_ptr, png_infop info_ptr));
+ (png_structp png_ptr, const_png_infop info_ptr));
#endif
# ifdef PNG_pHYs_SUPPORTED
-PNG_EXPORT(198, png_uint_32, png_get_pHYs_dpi, (png_structp png_ptr,
- png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y,
+PNG_EXPORT(198, png_uint_32, png_get_pHYs_dpi, (const_png_structp png_ptr,
+ const_png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y,
int *unit_type));
# endif /* PNG_pHYs_SUPPORTED */
#endif /* PNG_INCH_CONVERSIONS_SUPPORTED */
