--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/efl/ewk/ewk_util.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,98 @@
+/*
+    Copyright (C) 2009-2010 ProFUSION embedded systems
+    Copyright (C) 2009-2010 Samsung Electronics
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+#include "ewk_util.h"
+
+#include "ewk_private.h"
+#include <eina_safety_checks.h>
+
+Evas_Object* ewk_util_image_from_cairo_surface_add(Evas* canvas, cairo_surface_t* surface)
+{
+    cairo_status_t status;
+    cairo_surface_type_t type;
+    cairo_format_t format;
+    int w, h, stride;
+    Evas_Object* image;
+    const void* src;
+    void* dst;
+
+    EINA_SAFETY_ON_NULL_RETURN_VAL(canvas, 0);
+    EINA_SAFETY_ON_NULL_RETURN_VAL(surface, 0);
+
+    status = cairo_surface_status(surface);
+    if (status != CAIRO_STATUS_SUCCESS) {
+        ERR("cairo surface is invalid: %s", cairo_status_to_string(status));
+        return 0;
+    }
+
+    type = cairo_surface_get_type(surface);
+    if (type != CAIRO_SURFACE_TYPE_IMAGE) {
+        ERR("unknown surface type %d, required %d (CAIRO_SURFACE_TYPE_IMAGE).",
+            type, CAIRO_SURFACE_TYPE_IMAGE);
+        return 0;
+    }
+
+    format = cairo_image_surface_get_format(surface);
+    if (format != CAIRO_FORMAT_ARGB32 && format != CAIRO_FORMAT_RGB24) {
+        ERR("unknown surface format %d, expected %d or %d.",
+            format, CAIRO_FORMAT_ARGB32, CAIRO_FORMAT_RGB24);
+        return 0;
+    }
+
+    w = cairo_image_surface_get_width(surface);
+    h = cairo_image_surface_get_height(surface);
+    stride = cairo_image_surface_get_stride(surface);
+    if (w <= 0 || h <= 0 || stride <= 0) {
+        ERR("invalid image size %dx%d, stride=%d", w, h, stride);
+        return 0;
+    }
+
+    src = cairo_image_surface_get_data(surface);
+    if (!src) {
+        ERR("could not get source data.");
+        return 0;
+    }
+
+    image = evas_object_image_filled_add(canvas);
+    if (!image) {
+        ERR("could not add image to canvas.");
+        return 0;
+    }
+
+    evas_object_image_colorspace_set(image, EVAS_COLORSPACE_ARGB8888);
+    evas_object_image_size_set(image, w, h);
+    evas_object_image_alpha_set(image, format == CAIRO_FORMAT_ARGB32);
+
+    if (evas_object_image_stride_get(image) * 4 != stride) {
+        ERR("evas' stride %d diverges from cairo's %d.",
+            evas_object_image_stride_get(image) * 4, stride);
+        evas_object_del(image);
+        return 0;
+    }
+
+    dst = evas_object_image_data_get(image, EINA_TRUE);
+    memcpy(dst, src, h * stride);
+    evas_object_image_data_set(image, dst);
+
+    evas_object_resize(image, w, h); // helpful but not really required
+
+    return image;
+}