mask: Use gl surface instead of image surface to optimize test performance.

ref: https://github.com/SRA-SiliconValley/caskbench/issues/17

1 files changed, 26 insertions, 0 deletions

diff --git a/src/cairo-tests/mask.cpp b/src/cairo-tests/mask.cpp
index 982dae0..4a288b7 100644
--- a/src/cairo-tests/mask.cpp
+++ b/src/cairo-tests/mask.cpp
@@ -9,6 +9,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <cairo.h>
+#if USE_EGL
+# include <cairo-gl.h>
+#endif
 
 #include "caskbench.h"
 #include "cairo-shapes.h"
@@ -24,11 +27,34 @@ ca_setup_mask(caskbench_context_t *ctx)
                                       0x00, 0xFF, 0xFF, 0x00,
                                       0xFF, 0x00, 0x00, 0xFF, };
     static cairo_surface_t *stippled = NULL;
+    cairo_surface_t *cairo_surface;
 
     if (stippled == NULL) {
         stippled = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_A8, 2, 2, 4);
     }
+
+#if USE_EGL
+    cairo_device_t *cairo_device = cairo_surface_get_device (ctx->cairo_surface);
+    if (cairo_surface_get_type (ctx->cairo_surface) == CAIRO_SURFACE_TYPE_IMAGE) {
+        cairo_surface = cairo_image_surface_create (CAIRO_FORMAT_A8, 2, 2);
+    } else if (cairo_surface_get_type (ctx->cairo_surface) == CAIRO_SURFACE_TYPE_GL) {
+        /* create a gl surface the same size as image surface */
+        cairo_surface = cairo_gl_surface_create (cairo_device, CAIRO_CONTENT_COLOR_ALPHA, 2, 2);
+    }
+
+    cairo_t *gl_ctx = cairo_create (cairo_surface);
+    cairo_pattern_t *pattern = cairo_pattern_create_for_surface (stippled);
+    cairo_set_source (gl_ctx, pattern);
+
+    /* paint image surface to gl surface */
+    cairo_paint (gl_ctx);
+    cairo_destroy (gl_ctx);
+
+    /* use gl surface as mask */
+    mask = cairo_pattern_create_for_surface (cairo_surface);
+#else
     mask = cairo_pattern_create_for_surface (stippled);
+#endif
     cairo_pattern_set_extend (mask, CAIRO_EXTEND_REPEAT);
     cairo_pattern_set_filter (mask, CAIRO_FILTER_NEAREST);