From 781b46dcd48735bf2c31f5c5cae7561f9704afdb Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Wed, 30 Jun 2010 16:05:42 +0000
Subject: [PATCH] display percent of image complete on command line

git-svn-id: svn://anubis/fart/trunk@265 7f9b0f55-74a9-4bce-be96-3c2cd072584d
---
 main/fart.cc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/main/fart.cc b/main/fart.cc
index 320131e..a660e79 100644
--- a/main/fart.cc
+++ b/main/fart.cc
@@ -256,6 +256,11 @@ int main(int argc, char * argv[])
     }
     else
     {
+        int total_pixels = height * width;
+        int total_pixels_1000 = total_pixels / 1000;
+        if (total_pixels_1000 < 1)
+            total_pixels_1000 = 1;
+        int pixel_num = 0;
         /* "sequential" version */
         for (int i = 0; i < height; i++)
         {
@@ -263,8 +268,15 @@ int main(int argc, char * argv[])
             {
                 int pixel = i * width + j;
                 scene.renderPixel(j, i, &data[3 * pixel]);
+                pixel_num++;
+                if (pixel_num % total_pixels_1000 == 0)
+                {
+                    double pct = 100.0 * pixel_num / (double) total_pixels;
+                    printf("\e[8D%2.1f%%", pct);
+                }
             }
         }
+        printf("\e[8D");
     }
 
     gettimeofday(&after, NULL);         /* stop timing */