[gegl] tests: update sampling buffer tests for bilinear rather than boxfilter

From: Ã˜yvind KolÃ¥s <ok src gnome org>
To: commits-list gnome org
Cc:
Subject: [gegl] tests: update sampling buffer tests for bilinear rather than boxfilter
Date: Sun, 28 Jan 2018 20:59:27 +0000 (UTC)
commit 870f01f912c12c072d0a82284dc90b3dc9209ffa
Author: Ã˜yvind KolÃ¥s <pippin gimp org>
Date:   Sun Jan 28 14:28:37 2018 +0100

    tests: update sampling buffer tests for bilinear rather than boxfilter

 perf/test-common.h                            |    4 +-
 perf/test-gegl-buffer-access.c                |   60 ++++++++--
 tests/buffer/reference/get_buffer_scaled.buf  |  144 ++++++++++++------------
 tests/buffer/reference/get_buffer_scaled2.buf |   14 ++--
 4 files changed, 129 insertions(+), 93 deletions(-)
---
diff --git a/perf/test-common.h b/perf/test-common.h
index 8f1eff8..12cf97c 100644
--- a/perf/test-common.h
+++ b/perf/test-common.h
@@ -8,8 +8,8 @@
                            more noise, increase this number towards 1.0,
                            like 0.8 */
 #define BAIL_THRESHOLD 0.001
-#define BAIL_COUNT     250
-#define MIN_ITER       500
+#define BAIL_COUNT     75
+#define MIN_ITER       100
 
 static long ticks_start;
 
diff --git a/perf/test-gegl-buffer-access.c b/perf/test-gegl-buffer-access.c
index 60e764b..6d220c5 100644
--- a/perf/test-gegl-buffer-access.c
+++ b/perf/test-gegl-buffer-access.c
@@ -8,22 +8,25 @@ main (gint    argc,
 {
   GeglBuffer    *buffer;
   GeglRectangle  bound = {0, 0, 1024, 1024};
+  GeglRectangle  bound2 = {0, 0, 300, 300};
   const Babl *format;
+  guchar *sbuf;
   guchar *buf;
   gint i;
 
   gegl_init (NULL, NULL);
   format = babl_format ("RGBA float");
+  sbuf = g_malloc0 (bound.width * bound.height * BPP);
   buf = g_malloc0 (bound.width * bound.height * BPP);
 
   for (i = 0; i < bound.width * bound.height * BPP;i++)
-    buf[i] = rand() & 0xff;
+    sbuf[i] = rand() & 0xff;
 
   buffer = gegl_buffer_new (&bound, format);
 
   /* pre-initialize */
-  gegl_buffer_set (buffer, &bound, 0, NULL, buf, GEGL_AUTO_ROWSTRIDE);
-#if 0
+  gegl_buffer_set (buffer, &bound, 0, NULL, sbuf, GEGL_AUTO_ROWSTRIDE);
+#if 1
   test_start ();
   for (i=0;i<ITERATIONS && converged < BAIL_COUNT;i++)
     {
@@ -38,7 +41,7 @@ main (gint    argc,
     {
       GeglBuffer *buffer = gegl_buffer_new (&bound, format);
   /* pre-initialize */
-      gegl_buffer_set (buffer, &bound, 0, NULL, buf, GEGL_AUTO_ROWSTRIDE);
+      gegl_buffer_set (buffer, &bound, 0, NULL, sbuf, GEGL_AUTO_ROWSTRIDE);
       test_start_iter ();
       gegl_buffer_get (buffer, &bound, 0.333, NULL, buf, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
       test_end_iter ();
@@ -53,40 +56,73 @@ main (gint    argc,
     {
       const Babl *format = babl_format ("R'G'B'A u8");
       GeglBuffer *buffer = gegl_buffer_new (&bound, format);
-      gegl_buffer_set (buffer, &bound, 0, NULL, buf, GEGL_AUTO_ROWSTRIDE);
+      gegl_buffer_set (buffer, &bound, 0, NULL, sbuf, GEGL_AUTO_ROWSTRIDE);
   /* pre-initialize */
       test_start_iter ();
-      gegl_buffer_get (buffer, &bound, 0.333, NULL, buf, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+      gegl_buffer_get (buffer, &bound2, 0.333, NULL, buf, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
       test_end_iter ();
       g_object_unref (buffer);
      }
   }
-  test_end ("gegl_buffer_get 8bit 0.333", 1.0 * bound.width * bound.height * ITERATIONS * 4);
+  test_end ("buffer_get 8bit 0.333", 1.0 * bound2.width * bound2.height * ITERATIONS * 4);
 
   {
 
       const Babl *format = babl_format ("R'G'B'A u8");
       GeglBuffer *buffer = gegl_buffer_new (&bound, format);
-      gegl_buffer_set (buffer, &bound, 0, NULL, buf, GEGL_AUTO_ROWSTRIDE);
+      gegl_buffer_set (buffer, &bound, 0, NULL, sbuf, GEGL_AUTO_ROWSTRIDE);
   test_start ();
   for (i=0;i<ITERATIONS && converged < BAIL_COUNT;i++)
     {
   /* pre-initialize */
       test_start_iter ();
-      gegl_buffer_get (buffer, &bound, 0.333, NULL, buf, GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+      gegl_buffer_get (buffer, &bound2, 0.333, NULL, buf, GEGL_AUTO_ROWSTRIDE, 
GEGL_ABYSS_NONE|GEGL_BUFFER_BOXFILTER);
+      test_end_iter ();
+     }
+      g_object_unref (buffer);
+  }
+  test_end ("boxfilter 0.333", 1.0 * bound2.width * bound2.height * ITERATIONS * 4);
+
+
+  {
+      const Babl *format = babl_format ("R'G'B'A u8");
+      GeglBuffer *buffer = gegl_buffer_new (&bound, format);
+      gegl_buffer_set (buffer, &bound, 0, NULL, sbuf, GEGL_AUTO_ROWSTRIDE);
+  test_start ();
+  for (i=0;i<ITERATIONS && converged < BAIL_COUNT;i++)
+    {
+  /* pre-initialize */
+      test_start_iter ();
+      gegl_buffer_get (buffer, &bound2, 0.333, NULL, buf, GEGL_AUTO_ROWSTRIDE, 
GEGL_ABYSS_NONE|GEGL_BUFFER_NEAREST);
       test_end_iter ();
      }
       g_object_unref (buffer);
   }
-  test_end ("gegl_buffer_getC8bit 0.333", 1.0 * bound.width * bound.height * ITERATIONS * 4);
+  test_end ("nearest 0.333", 1.0 * bound2.width * bound2.height * ITERATIONS * 4);
+
 
-  exit(0);
+
+  {
+      const Babl *format = babl_format ("R'G'B'A u8");
+      GeglBuffer *buffer = gegl_buffer_new (&bound, format);
+      gegl_buffer_set (buffer, &bound, 0, NULL, sbuf, GEGL_AUTO_ROWSTRIDE);
+  test_start ();
+  for (i=0;i<ITERATIONS && converged < BAIL_COUNT;i++)
+    {
+  /* pre-initialize */
+      test_start_iter ();
+      gegl_buffer_get (buffer, &bound2, 0.333, NULL, buf, GEGL_AUTO_ROWSTRIDE, 
GEGL_ABYSS_NONE|GEGL_BUFFER_BILINEAR);
+      test_end_iter ();
+     }
+      g_object_unref (buffer);
+  }
+  test_end ("bilinear 0.333", 1.0 * bound2.width * bound2.height * ITERATIONS * 4);
 
   test_start ();
   for (i=0;i<ITERATIONS && converged < BAIL_COUNT;i++)
     {
       test_start_iter ();
-      gegl_buffer_set (buffer, &bound, 0, NULL, buf, GEGL_AUTO_ROWSTRIDE);
+      gegl_buffer_set (buffer, &bound, 0, NULL, sbuf, GEGL_AUTO_ROWSTRIDE);
       test_end_iter ();
      }
   test_end ("gegl_buffer_set", 1.0 * bound.width * bound.height * ITERATIONS * BPP);
diff --git a/tests/buffer/reference/get_buffer_scaled.buf b/tests/buffer/reference/get_buffer_scaled.buf
index 157833b..6377350 100644
--- a/tests/buffer/reference/get_buffer_scaled.buf
+++ b/tests/buffer/reference/get_buffer_scaled.buf
@@ -1,101 +1,101 @@
 Test: get_buffer_scaled
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
-â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
-â–Œ  â–’â–ˆâ–“  â–“â–ˆâ–’  â–
-â–Œâ–‘â–‘â–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–
-â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
-â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
-â–Œâ–‘â–‘â–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–
-â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
-â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ â–
-â–Œâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ â–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
-â–Œ â–’â–ˆâ–“  â–“â–ˆâ–’  â–ˆâ–
-â–Œâ–‘â–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–
-â–Œâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ â–
-â–Œâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ â–
-â–Œâ–‘â–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–
-â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
-â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–
-â–Œâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
-â–Œâ–’â–ˆâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–
-â–Œâ–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–
-â–Œâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–
-â–Œâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–
-â–Œâ–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–
-â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
-â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–
-â–Œ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
 â–Œâ–ˆâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’â–
-â–Œâ–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–
-â–Œ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–
+â–Œâ–ˆâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’â–
+â–Œâ–‘â–’â–“â–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–
 â–Œ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–
-â–Œâ–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–
+â–Œâ–‘â–’â–“â–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–
+â–Œâ–ˆâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’â–
+â–Œâ–ˆâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’â–
+â–Œâ–‘â–‘â–“â–“â–‘â–‘â–’â–“â–“â–‘â–‘â–’â–
 â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–
-â–Œâ–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
 â–Œâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–
-â–Œâ–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–
-â–Œâ–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–
+â–Œâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–
+â–Œâ–’â–“â–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–
 â–Œâ–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–
-â–Œâ–“â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–
+â–Œâ–’â–“â–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–
+â–Œâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–
+â–Œâ–“  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–
+â–Œâ–‘â–“â–“â–‘â–‘â–’â–“â–“â–‘â–‘â–’â–“â–
 â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“â–
-â–Œâ–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“â–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
 â–Œ  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–
-â–Œâ–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–
-â–Œâ–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“â–
+â–Œ  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–
+â–Œâ–“â–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–
 â–Œâ–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“â–
-â–Œâ–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–
+â–Œâ–“â–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–
+â–Œ  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–
+â–Œ  â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–
+â–Œâ–“â–“â–‘â–‘â–’â–“â–“â–‘â–‘â–’â–“â–“â–
 â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“ â–
-â–Œâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“ â–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
 â–Œ â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–
-â–Œâ–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–
-â–Œâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“ â–
+â–Œ â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–
+â–Œâ–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–
 â–Œâ–ˆâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“ â–
-â–Œâ–‘â–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–
+â–Œâ–“â–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–
+â–Œ â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–
+â–Œ â–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–
+â–Œâ–“â–‘â–‘â–’â–“â–“â–‘â–‘â–’â–“â–“â–‘â–
 â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–
-â–Œâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
 â–Œâ–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–
-â–Œâ–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–
-â–Œâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–
+â–Œâ–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–
+â–Œâ–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–
 â–Œâ–‘ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–
-â–Œâ–“â–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–
+â–Œâ–’â–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–
+â–Œâ–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–
+â–Œâ–“â–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–
+â–Œâ–‘â–‘â–’â–“â–“â–‘â–‘â–’â–“â–“â–‘â–‘â–
 â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–
-â–Œ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
 â–Œâ–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘â–
-â–Œâ–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–‘â–
-â–Œ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–
+â–Œâ–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘â–
+â–Œâ–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–
 â–Œ â–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–
-â–Œâ–“â–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–‘â–
+â–Œâ–‘â–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–
+â–Œâ–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘â–
+â–Œâ–ˆâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘â–
+â–Œâ–‘â–’â–“â–“â–‘â–‘â–’â–“â–“â–‘â–‘â–“â–
 â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
-â–Œâ–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–ˆâ–
-â–Œâ–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–ˆâ–
-â–Œâ–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–
 â–Œâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–
-â–Œâ–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–‘â–‘â–
-â–Œâ–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–ˆâ–
+â–Œâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–
+â–Œâ–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–
 â–Œâ–’â–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–ˆâ–
-â–Œâ–’â–‘â–‘â–“â–“â–’â–‘â–‘â–“â–“â–‘â–‘â–
+â–Œâ–’â–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–
+â–Œâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–
+â–Œâ–’  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–
+â–Œâ–’â–“â–“â–‘â–‘â–’â–“â–“â–‘â–‘â–“â–“â–
+â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
+â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
+â–Œ  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–
+â–Œ  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–
+â–Œâ–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–’â–
+â–Œâ–ˆâ–ˆ  â–’â–ˆâ–“  â–“â–ˆâ–’â–
+â–Œâ–“â–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–’â–
+â–Œ  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–
+â–Œ  â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–
+â–Œâ–“â–“â–‘â–‘â–’â–“â–“â–‘â–‘â–“â–“â–’â–
+â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
+â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
+â–Œ â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–
+â–Œ â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–
+â–Œâ–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–’â–‘â–
+â–Œâ–ˆ  â–’â–ˆâ–“  â–“â–ˆâ–’ â–
+â–Œâ–“â–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–’â–‘â–
+â–Œ â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–
+â–Œ â–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–
+â–Œâ–“â–‘â–‘â–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–
+â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
+â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
+â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
+â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
+â–Œâ–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–’â–‘â–‘â–
+â–Œ  â–’â–ˆâ–“  â–“â–ˆâ–’  â–
+â–Œâ–‘â–‘â–’â–“â–’â–‘â–‘â–’â–“â–’â–‘â–‘â–
+â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
+â–Œâ–ˆâ–ˆâ–’ â–‘â–ˆâ–ˆâ–‘ â–’â–ˆâ–ˆâ–
+â–Œâ–‘â–‘â–’â–“â–“â–‘â–‘â–“â–“â–’â–‘â–‘â–
 â–™â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–Ÿ
diff --git a/tests/buffer/reference/get_buffer_scaled2.buf b/tests/buffer/reference/get_buffer_scaled2.buf
index d13f066..02d952c 100644
--- a/tests/buffer/reference/get_buffer_scaled2.buf
+++ b/tests/buffer/reference/get_buffer_scaled2.buf
@@ -2,12 +2,12 @@ Test: get_buffer_scaled2
 â–›â–€â–€â–€â–€â–€â–€â–€â–€â–€â–€â–œ
 â–Œ          â–
 â–Œ          â–
-â–Œ  â–ˆâ–‘â–‘â–ˆ â–“â–’ â–
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-â–Œ  â–ˆâ–‘â–‘â–ˆ â–“â–’ â–
-â–Œ   â–“â–“ â–ˆâ–‘  â–
-â–Œ  â–“â–’â–’â–“â–‘â–’â–’ â–
-â–Œ  â–’â–‘â–‘â–’ â–’â–‘ â–
+â–Œ â–‘â–ˆ â–“â–“ â–ˆâ–‘ â–
+â–Œ  â–’â–’â–’â–’â–’â–’  â–
+â–Œ   â–ˆâ–‘â–‘â–ˆ   â–
+â–Œ â–‘â–ˆ â–“â–“ â–ˆâ–‘ â–
+â–Œ   â–ˆâ–‘â–‘â–ˆ   â–
+â–Œ â–‘â–’â–’â–’â–’â–’â–’  â–
+â–Œ â–‘â–ˆ â–“â–“ â–ˆâ–‘ â–
 â–Œ          â–
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