From bff7f2b3b440c30d0d6eb692576af57ef42edd1b Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Wed, 8 Jul 2009 17:12:02 +0000
Subject: Comments and style adjustments, and a couple fixes.

---
 tests/png.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'tests/png.c')

diff --git a/tests/png.c b/tests/png.c
index 8db6d63..0949f8b 100644
--- a/tests/png.c
+++ b/tests/png.c
@@ -40,12 +40,14 @@ main() {
   /* Set the resilience low for tests */
   dmnsn_set_resilience(DMNSN_SEVERITY_LOW);
 
+  /* Allocate a canvas */
   canvas = dmnsn_new_canvas(3*x, y);
   if (!canvas) {
     fprintf(stderr, "--- Allocation of canvas failed! ---\n");
     return EXIT_FAILURE;
   }
 
+  /* Optimize the canvas for PNG export */
   if (dmnsn_png_optimize_canvas(canvas) != 0) {
     dmnsn_delete_canvas(canvas);
     fprintf(stderr, "--- Couldn't optimize canvas for PNG! ---\n");
@@ -110,6 +112,8 @@ main() {
     }
   }
 
+  /* Write the image to PNG */
+
   ofile = fopen("dimension1.png", "wb");
   if (!ofile) {
     fprintf(stderr, "--- Opening 'dimension1.png' for writing failed! ---\n");
@@ -137,6 +141,8 @@ main() {
   fclose(ofile);
   dmnsn_delete_canvas(canvas);
 
+  /* Read the image back from the PNG file */
+
   ifile = fopen("dimension1.png", "rb");
   if (!ifile) {
     fprintf(stderr, "--- Opening 'dimension1.png' for reading failed! ---\n");
@@ -160,6 +166,8 @@ main() {
 
   fclose(ifile);
 
+  /* ... and write it back again */
+
   ofile = fopen("dimension2.png", "wb");
   if (!ofile) {
     fprintf(stderr, "--- Opening 'dimension2.png' for writing failed! ---\n");
-- 
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