[PATCH 1/2] Add unaligned boxes to "operator-source" test

Uli Schlachter psychon at znc.in
Mon Mar 21 10:42:27 PDT 2011


These ref images might be wrong. Since the test failed here already before this
change, I took the old ref images and copied the new part from the test output
underneath it. For the backends that I don't have, I deleted the images (sorry).

After this, the "operator-source" test still fails for me on all backends, but
much more prominently so for the image backend. xcb-render-0.0/argb32 gets
compared against a rgb24 ref image, but apparently this was already the case
before(?). The rest are minor differences.

This reveals a bug in the image backend. This was originally reported here:
http://lists.cairographics.org/archives/cairo/2011-March/021827.html

Signed-off-by: Uli Schlachter <psychon at znc.in>
---
 test/operator-source.c                      |   25 +++++++++++++++++++++----
 test/operator-source.image16.ref.png        |  Bin 2756 -> 3959 bytes
 test/operator-source.pdf.rgb24.ref.png      |  Bin 3645 -> 0 bytes
 test/operator-source.quartz.argb32.ref.png  |  Bin 4936 -> 0 bytes
 test/operator-source.quartz.rgb24.ref.png   |  Bin 3771 -> 0 bytes
 test/operator-source.ref.png                |  Bin 4395 -> 5745 bytes
 test/operator-source.rgb24.ref.png          |  Bin 3231 -> 4639 bytes
 test/operator-source.svg12.argb32.xfail.png |  Bin 2967 -> 0 bytes
 test/operator-source.svg12.rgb24.xfail.png  |  Bin 2976 -> 0 bytes
 test/operator-source.xlib-fallback.ref.png  |  Bin 3177 -> 4444 bytes
 test/operator-source.xlib.ref.png           |  Bin 4420 -> 5721 bytes
 test/operator-source.xlib.rgb24.ref.png     |  Bin 3201 -> 4447 bytes
 12 files changed, 21 insertions(+), 4 deletions(-)
 delete mode 100644 test/operator-source.pdf.rgb24.ref.png
 delete mode 100644 test/operator-source.quartz.argb32.ref.png
 delete mode 100644 test/operator-source.quartz.rgb24.ref.png
 delete mode 100644 test/operator-source.svg12.argb32.xfail.png
 delete mode 100644 test/operator-source.svg12.rgb24.xfail.png

diff --git a/test/operator-source.c b/test/operator-source.c
index d734167..3dee570 100644
--- a/test/operator-source.c
+++ b/test/operator-source.c
@@ -22,6 +22,7 @@
  *
  * Authors: Kristian Høgsberg <krh at redhat.com>
  *          Owen Taylor <otaylor at redhat.com>
+ *          Uli Schlachter <psychon at znc.in>
  */
 
 #include <math.h>
@@ -145,12 +146,15 @@ draw_polygon (cairo_t *cr, int x, int y)
 }
 
 static void
-draw_rects (cairo_t *cr, int x, int y)
+draw_rects (cairo_t *cr, int x, int y, double offset)
 {
-    double block_width = (int)(0.33 * WIDTH + 0.5);
-    double block_height = (int)(0.33 * HEIGHT + 0.5);
+    double block_width = (int)(0.33 * WIDTH + 0.5) - offset/3;
+    double block_height = (int)(0.33 * HEIGHT + 0.5) - offset/3;
     int i, j;
 
+    x += offset/2;
+    y += offset/2;
+
     for (i = 0; i < 3; i++)
 	for (j = 0; j < 3; j++)
 	    if ((i + j) % 2 == 0)
@@ -161,6 +165,18 @@ draw_rects (cairo_t *cr, int x, int y)
     cairo_fill (cr);
 }
 
+static void
+draw_aligned_rects (cairo_t *cr, int x, int y)
+{
+    draw_rects (cr, x, y, 0);
+}
+
+static void
+draw_unaligned_rects (cairo_t *cr, int x, int y)
+{
+    draw_rects (cr, x, y, 2.1);
+}
+
 static void (* const pattern_funcs[])(cairo_t *cr, int x, int y) = {
     set_solid_pattern,
     set_translucent_pattern,
@@ -172,7 +188,8 @@ static void (* const draw_funcs[])(cairo_t *cr, int x, int y) = {
     draw_mask,
     draw_glyphs,
     draw_polygon,
-    draw_rects
+    draw_aligned_rects,
+    draw_unaligned_rects
 };
 
 #define IMAGE_WIDTH (ARRAY_LENGTH (pattern_funcs) * (WIDTH + PAD) + PAD)
diff --git a/test/operator-source.image16.ref.png b/test/operator-source.image16.ref.png
index 09173e0f21d81fd58338b3a75f18a099df6d1dda..45562603c7334441d82fe912191427f310ed8831 100644
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diff --git a/test/operator-source.xlib.ref.png b/test/operator-source.xlib.ref.png
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-- 
1.7.4.1


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