[libpng16] Reverted png_set_itxt(); it would not compile without warnings.

ANNOUNCE

@@ -1,5 +1,5 @@
 
-Libpng 1.6.0beta19 - March 16, 2012
+Libpng 1.6.0beta19 - March 17, 2012
 
 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.
@@ -318,8 +318,7 @@ Version 1.6.0beta18 [March 16, 2012]
     read benign errors to warnings (regardless of the system default, unless
     this is disabled in which case the simplified API can't be built.)
 
-Version 1.6.0beta19 [March 16, 2012]
+Version 1.6.0beta19 [March 17, 2012]
-  Added png_set_itxt() (work in progress)
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

CHANGES

@@ -4069,8 +4069,7 @@ Version 1.6.0beta18 [March 16, 2012]
     read benign errors to warnings (regardless of the system default, unless
     this is disabled in which case the simplified API can't be built.)
 
-Version 1.6.0beta19 [March 16, 2012]
+Version 1.6.0beta19 [March 17, 2012]
-  Added png_set_itxt() (work in progress)
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

example.c

@@ -863,13 +863,6 @@ void write_png(char *file_name /* , ... other image information ... */)
     */
    png_set_gAMA(png_ptr, info_ptr, gamma);
 
-#if PNG_LIBPNG_VER >= 1.6.0
-   png_set_itxt(png_ptr, info_ptr, 0, 0, "Title", "Mona Lisa", NULL, NULL); 
-   png_set_itxt(png_ptr, info_ptr, 0, 0, "Author", "Leonardo da Vinci", NULL,
-       NULL);
-   png_set_itxt(png_ptr, info_ptr, 3, 0, "Description", "<long text>", NULL,
-       NULL);
-#else
    /* Optionally write comments into the image */
    {
       png_text text_ptr[3];
@@ -903,7 +896,6 @@ void write_png(char *file_name /* , ... other image information ... */)
 
       png_set_text(write_ptr, write_info_ptr, text_ptr, 3);
    }
-#endif
 
    /* Other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs */
 

png.h

@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.0beta19 - March 16, 2012
+ * libpng version 1.6.0beta19 - March 17, 2012
  * Copyright (c) 1998-2012 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 1.6.0beta19 - March 16, 2012: Glenn
+ *   libpng versions 0.97, January 1998, through 1.6.0beta19 - March 17, 2012: Glenn
  *   See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -198,7 +198,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.6.0beta19, March 16, 2012, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.6.0beta19, March 17, 2012, are
  * Copyright (c) 2004, 2006-2012 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:
@@ -310,7 +310,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    March 16, 2012
+ *    March 17, 2012
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -376,7 +376,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.6.0beta19"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.6.0beta19 - March 16, 2012\n"
+     " libpng version 1.6.0beta19 - March 17, 2012\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
@@ -2263,13 +2263,6 @@ PNG_EXPORT(163, void, png_set_text, (png_const_structrp png_ptr,
     png_inforp info_ptr, png_const_textp text_ptr, int num_text));
 #endif
 
-#ifdef PNG_WRITE_TEXT_SUPPORTED
-PNG_EXPORT(243, void, png_set_itxt, (png_const_structrp png_ptr,
-    png_inforp info_ptr, const int in_flag, const int in_method,
-    png_const_charp in_key, png_const_charp in_text, png_const_charp in_lang,
-    png_const_charp in_lang_key));
-#endif
-
 #ifdef PNG_tIME_SUPPORTED
 PNG_EXPORT(164, png_uint_32, png_get_tIME, (png_const_structrp png_ptr,
     png_inforp info_ptr, png_timep *mod_time));
@@ -3088,7 +3081,7 @@ PNG_EXPORT(242, void, png_set_check_for_invalid_index,
  * scripts/symbols.def as well.
  */
 #ifdef PNG_EXPORT_LAST_ORDINAL
-  PNG_EXPORT_LAST_ORDINAL(243);
+  PNG_EXPORT_LAST_ORDINAL(242);
 #endif
 
 #ifdef __cplusplus

pngwrite.c

@@ -1410,75 +1410,6 @@ png_set_text_compression_method(png_structrp png_ptr, int method)
 #endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED */
 /* end of API added to libpng-1.5.4 */
 
-#ifdef PNG_WRITE_TEXT_SUPPORTED
-/* TO DO: synopsis in libpng.3
- *        revise example.c
- *        set up some macros to use instead of 0,1,2,3
- *        test, test, test
- */
-/* API added to libpng-1.6.0 */
-void PNGAPI
-png_set_itxt(png_const_structrp png_ptr, png_inforp info_ptr,
-    const int in_flag, const int in_method, png_const_charp in_key,
-    png_const_charp in_text, png_const_charp in_lang,
-    png_const_charp in_lang_key)
-{
-   if (png_ptr != NULL && info_ptr != NULL)
-   {
-      png_text text_ptr[1];
-      char *key = (png_charp) in_key;
-      char *text = (png_charp) in_text;
-#ifdef PNG_WRITE_iTXt_SUPPORTED
-      char *lang = (png_charp) in_lang;
-      char *lang_key = (png_charp) in_lang_key;
-#endif
-      text_ptr[0].key = key;
-      text_ptr[0].text = text;
-#ifdef PNG_WRITE_iTXt_SUPPORTED
-      text_ptr[0].lang = lang;
-      text_ptr[0].lang_key = lang_key;
-#endif
-
-      /*
-       TO DO: use macros for these.
-      -1: tEXt, none
-       0: zTXt, deflate
-       1: iTXt, none
-       2: iTXt, deflate
-       */
-
-      if (in_method != 0)
-        png_benign_error(png_ptr,
-            "Only text compression method 0 is supported, using 0.");
-
-      if (in_flag == 0)
-        text_ptr[0].compression = -1;
-
-      else if (in_flag == 1)
-        text_ptr[0].compression = 0;
-
-      else if (in_flag == 2)
-        text_ptr[0].compression = 1;
-
-      else if (in_flag == 3)
-        text_ptr[0].compression = 2;
-
-      else
-      {
-        png_benign_error(png_ptr,
-            "Unrecognized text compression flag, using (compressed iTXt).");
-        text_ptr[0].compression = 2;
-      }
-
-      png_debug(1, "in png_set_itxt");
-
-      /* TO DO: fix compiler warning about discarding qualifier here */
-      png_set_text(png_ptr, info_ptr, text_ptr, 1);
-   }
-  
-}
-#endif
-
 void PNGAPI
 png_set_write_status_fn(png_structrp png_ptr, png_write_status_ptr write_row_fn)
 {

scripts/pnglibconf.h.prebuilt

@@ -3,7 +3,7 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng 1.6.0beta19 - March 16, 2012 */
+/* Libpng 1.6.0beta19 - March 17, 2012 */
 
 /* Copyright (c) 1998-2012 Glenn Randers-Pehrson */
 

scripts/symbols.def

@@ -248,4 +248,3 @@ EXPORTS
  png_image_write_to_stdio @240
  png_convert_to_rfc1123_buffer @241
  png_set_check_for_invalid_index @242
- png_set_itxt @243