lodepng.c (lodepng_encode): check for preProcessScanlines() errors.

(patch by 'yoch', from lvandeve/lodepng#66) git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@1553 af15c1b1-3010-417e-b628-4374ebc0bcbd
ericwa · Jan 11, 2018 · 3d59b98 · 3d59b98
1 parent 425e538
commit 3d59b98
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/quakespasm/Quake/lodepng.c b/quakespasm/Quake/lodepng.c
@@ -5677,10 +5677,16 @@ unsigned lodepng_encode(unsigned char** out, size_t* outsize,
       {
         state->error = lodepng_convert(converted, image, &info.color, &state->info_raw, w, h);
       }
-      if(!state->error) preProcessScanlines(&data, &datasize, converted, w, h, &info, &state->encoder);
+      if(!state->error)
+      {
+          state->error = preProcessScanlines(&data, &datasize, converted, w, h, &info, &state->encoder);
+      }
       lodepng_free(converted);
     }
-    else preProcessScanlines(&data, &datasize, image, w, h, &info, &state->encoder);
+    else 
+    {
+        state->error = preProcessScanlines(&data, &datasize, image, w, h, &info, &state->encoder);
+    }
   }
 
   /* output all PNG chunks */