Quiet two warnings about uninitialized variables in coders/png.c

diff --git a/coders/png.c b/coders/png.c
index a1a3ffd1e67e587d6ff0b2650f264293b6ad40eb..925739d504cac04408c04c7e6619c7ab885a1d0b 100644 (file)
--- a/coders/png.c
+++ b/coders/png.c
@@ -2282,6 +2282,7 @@ static Image *ReadOnePNGImage(MngInfo *mng_info,
   ping_found_gAMA = MagickFalse;
   ping_found_iCCP = MagickFalse;
   ping_found_sRGB = MagickFalse;
+  ping_found_sRGB_cHRM = MagickFalse;
   ping_preserve_iCCP = MagickFalse;
 
   {
@@ -12370,6 +12371,8 @@ static MagickBooleanType WriteOneJNGImage(MngInfo *mng_info,
   transparent=image_info->type==GrayscaleMatteType ||
      image_info->type==TrueColorMatteType || image->alpha_trait == BlendPixelTrait;
 
+  jng_alpha_sample_depth = 0;
+
   jng_quality=image_info->quality == 0UL ? 75UL : image_info->quality%1000;
 
   jng_alpha_compression_method=image->compression==JPEGCompression? 8 : 0;