Add preliminary skia tests

1 files changed, 67 insertions, 0 deletions

diff --git a/src/skia-tests/stroke.cpp b/src/skia-tests/stroke.cpp
new file mode 100644
index 0000000..52b7aef
--- /dev/null
+++ b/src/skia-tests/stroke.cpp
@@ -0,0 +1,67 @@
+// From http://www.atoker.com/blog/2008/09/06/skia-graphics-library-in-chrome-first-impressions/
+
+#include "SkBitmap.h"
+#include "SkBitmapDevice.h"
+#include "SkPaint.h"
+#include "SkRect.h"
+#include <cairo.h>
+ 
+#include "caskbench.h"
+
+static SkRect r;
+
+int
+setup_stroke(SkPaint *paint)
+{
+  paint->setARGB(255, 255, 255, 255);
+  r.set(10, 10, 20, 20);
+  return 1;
+}
+
+int
+test_stroke(SkCanvas *canvas, SkPaint *paint)
+{
+  int i, x, w, prev_w;
+  x = 0;
+  prev_w = 0;
+  for (i=0; i<32; i++) {
+    paint->setColor(rand());
+    w = (32.0*rand())/RAND_MAX + 1;
+    x += 4 + (prev_w + w)/2.0;
+    paint->setStrokeWidth(w);
+    canvas->drawLine(x,10, x,70, *paint);
+    prev_w = w;
+  }
+
+  return 1;
+}
+
+void
+teardown_stroke(void)
+{
+}
+
+int main()
+{
+  SkBitmap bitmap;
+  bitmap.setConfig(SkBitmap::kARGB_8888_Config, 800, 100);
+  bitmap.allocPixels();
+  SkBitmapDevice device(bitmap);
+  SkCanvas canvas(&device);
+  SkPaint paint;
+
+  for (int i=0; i<1; i++) {
+    setup_stroke(&paint);
+    test_stroke(&canvas, &paint);
+  }
+
+  {
+    SkAutoLockPixels image_lock(bitmap);
+    cairo_surface_t* surface = cairo_image_surface_create_for_data((unsigned char*)bitmap.getPixels(), CAIRO_FORMAT_ARGB32,
+								   bitmap.width(), bitmap.height(), bitmap.rowBytes());
+    cairo_surface_write_to_png(surface, "snapshot.png");
+    cairo_surface_destroy(surface);
+  }
+ 
+  return 0;
+}