commit b478e66e7c2621eef5f465e4629ce642db00716b
author Sireesh Tripurari <sireesh.tripurari@linaro.org> Fri May 09 15:15:10 2014 +0530
committer Sireesh Tripurari <sireesh.tripurari@linaro.org> Fri May 09 15:15:10 2014 +0530
tree b855f74a1fa5c817a2cbf10cd236093ba483c838
parent 8ef380fc5204fd7ff440d243e82298817b212614

Update libpng from 1.6.3 to 1.6.10

Change-Id: I76e81e7fd267d15991cd342c5caeb2fe77964ebf

contrib/gregbook/readpng2.c

diff --git a/contrib/gregbook/readpng2.c b/contrib/gregbook/readpng2.c
index e179db7..e6a132e 100644
--- a/contrib/gregbook/readpng2.c
+++ b/contrib/gregbook/readpng2.c
@@ -69,6 +69,7 @@
                                  png_uint_32 row_num, int pass);
 static void readpng2_end_callback(png_structp png_ptr, png_infop info_ptr);
 static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg);
+static void readpng2_warning_handler(png_structp png_ptr, png_const_charp msg);
 
 
 
@@ -104,7 +105,7 @@
     /* could also replace libpng warning-handler (final NULL), but no need: */
 
     png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, mainprog_ptr,
-      readpng2_error_handler, NULL);
+      readpng2_error_handler, readpng2_warning_handler);
     if (!png_ptr)
         return 4;   /* out of memory */
 
@@ -467,7 +468,11 @@
 }
 
 
-
+static void readpng2_warning_handler(png_structp png_ptr, png_const_charp msg)
+{
+    fprintf(stderr, "readpng2 libpng warning: %s\n", msg);
+    fflush(stderr);
+}
 
 
 static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg)