mask: Improve cairo and skia mask tests

These are still not apples-to-apples since the cairo mask is not a
stipple, just 50% alpha, but should be a *lot* closer now.  Even though
it's doing a slightly more complex mask, skia is outperforming cairo
now.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/cairo-tests/mask.cpp b/src/cairo-tests/mask.cpp
index d370100..e837343 100644
--- a/src/cairo-tests/mask.cpp
+++ b/src/cairo-tests/mask.cpp
@@ -9,6 +9,7 @@ static cairo_pattern_t *mask;
 int
 ca_setup_mask(caskbench_context_t *ctx)
 {
+    // TODO: Create a stipple mask pattern
     mask = cairo_pattern_create_rgba (0, 0, 0, 0.5);
     return 1;
 }
@@ -25,7 +26,11 @@ ca_test_mask(caskbench_context_t *ctx)
     int i;
     cairo_t *cr = ctx->cairo_cr;
 
-    for (i=0; i<ctx->size; i++)
+    for (i=0; i<ctx->size; i++) {
+        // Apply mask on a circle
+        cairo_arc (cr, 40*i, 40, 30, 0, 2*M_PI);
+        cairo_fill (cr);
         cairo_mask (cr, mask);
+    }
     return 1;
 }