Merge WebKit at r75993: Initial merge by git.

Change-Id: I602bbdc3974787a3b0450456a30a7868286921c3

1 files changed, 131 insertions, 0 deletions

diff --git a/Source/WebKit/efl/ewk/ewk_tiled_backing_store.h b/Source/WebKit/efl/ewk/ewk_tiled_backing_store.h
new file mode 100644
index 0000000..4af58c8
--- /dev/null
+++ b/Source/WebKit/efl/ewk/ewk_tiled_backing_store.h
@@ -0,0 +1,131 @@
+/*
+    Copyright (C) 2009-2010 Samsung Electronics
+    Copyright (C) 2009-2010 ProFUSION embedded systems
+
+    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.
+*/
+
+#ifndef ewk_tiled_backing_store_h
+#define ewk_tiled_backing_store_h
+
+#include "EWebKit.h"
+
+/* Enable accounting of render time in tile statistics */
+// #define TILE_STATS_ACCOUNT_RENDER_TIME
+
+
+/* If define ewk will do more accounting to check for memory leaks
+ * try "kill -USR1 $PID" to get instantaneous debug
+ * try "kill -USR2 $PID" to get instantaneous debug and force flush of cache
+ */
+#define DEBUG_MEM_LEAKS 1
+
+#define TILE_W (256)
+#define TILE_H (256)
+
+#define ZOOM_STEP_MIN (0.01)
+
+#define TILE_SIZE_AT_ZOOM(SIZE, ZOOM) ((int)roundf((SIZE) * (ZOOM)))
+#define TILE_W_ZOOM_AT_SIZE(SIZE) ((float)SIZE / (float)TILE_W)
+#define TILE_H_ZOOM_AT_SIZE(SIZE) ((float)SIZE / (float)TILE_H)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <Evas.h>
+#include <cairo.h>
+
+typedef struct _Ewk_Tile                     Ewk_Tile;
+typedef struct _Ewk_Tile_Stats               Ewk_Tile_Stats;
+typedef struct _Ewk_Tile_Matrix              Ewk_Tile_Matrix;
+
+struct _Ewk_Tile_Stats {
+    double last_used;        /**< time of last use */
+#ifdef TILE_STATS_ACCOUNT_RENDER_TIME
+    double render_time;      /**< amount of time this tile took to render */
+#endif
+    unsigned int area;       /**< cache for (w * h) */
+    unsigned int misses;     /**< number of times it became dirty but not
+                              * repainted at all since it was not visible.
+                              */
+    Eina_Bool full_update:1; /**< tile requires full size update */
+};
+
+struct _Ewk_Tile {
+    EINA_INLIST;            /**< sibling tiles at same (i, j) but other zoom */
+    Eina_Tiler *updates;    /**< updated/dirty areas */
+    Ewk_Tile_Stats stats;       /**< tile usage statistics */
+    unsigned long col, row; /**< tile tile position */
+    Evas_Coord x, y;        /**< tile coordinate position */
+
+    /* TODO: does it worth to keep those or create on demand? */
+    cairo_surface_t *surface;
+    cairo_t *cairo;
+
+    /** Never ever change those after tile is created (respect const!) */
+    const Evas_Coord w, h;        /**< tile size (see TILE_SIZE_AT_ZOOM()) */
+    const Evas_Colorspace cspace; /**< colorspace */
+    const float zoom;             /**< zoom level contents were rendered at */
+    const size_t bytes;           /**< bytes used in pixels. keep
+                                   * before pixels to guarantee
+                                   * alignement!
+                                   */
+    int visible;                  /**< visibility counter of this tile */
+    Evas_Object *image;           /**< Evas Image, the tile to be rendered */
+    uint8_t *pixels;
+};
+
+#include "ewk_tiled_matrix.h"
+#include "ewk_tiled_model.h"
+
+/* view */
+EAPI Evas_Object *ewk_tiled_backing_store_add(Evas *e);
+
+EAPI void ewk_tiled_backing_store_render_cb_set(Evas_Object *o, Eina_Bool (*cb)(void *data, Ewk_Tile *t, const Eina_Rectangle *area), const void *data);
+
+EAPI Eina_Bool    ewk_tiled_backing_store_scroll_full_offset_set(Evas_Object *o, Evas_Coord x, Evas_Coord y);
+EAPI Eina_Bool    ewk_tiled_backing_store_scroll_full_offset_add(Evas_Object *o, Evas_Coord dx, Evas_Coord dy);
+EAPI Eina_Bool    ewk_tiled_backing_store_scroll_inner_offset_add(Evas_Object *o, Evas_Coord dx, Evas_Coord dy, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h);
+
+EAPI Eina_Bool    ewk_tiled_backing_store_zoom_set(Evas_Object *o, float *zoom, Evas_Coord cx, Evas_Coord cy, Evas_Coord *offx, Evas_Coord *offy);
+EAPI Eina_Bool    ewk_tiled_backing_store_zoom_weak_set(Evas_Object *o, float zoom, Evas_Coord cx, Evas_Coord cy);
+EAPI void ewk_tiled_backing_store_fix_offsets(Evas_Object *o, Evas_Coord w, Evas_Coord h);
+EAPI void ewk_tiled_backing_store_zoom_weak_smooth_scale_set(Evas_Object *o, Eina_Bool smooth_scale);
+EAPI Eina_Bool    ewk_tiled_backing_store_update(Evas_Object *o, const Eina_Rectangle *update);
+EAPI void ewk_tiled_backing_store_updates_process_pre_set(Evas_Object *o, void *(*cb)(void *data, Evas_Object *o), const void *data);
+EAPI void ewk_tiled_backing_store_updates_process_post_set(Evas_Object *o, void *(*cb)(void *data, void *pre_data, Evas_Object *o), const void *data);
+EAPI void ewk_tiled_backing_store_process_entire_queue_set(Evas_Object *o, Eina_Bool value);
+EAPI void ewk_tiled_backing_store_updates_process(Evas_Object *o);
+EAPI void ewk_tiled_backing_store_updates_clear(Evas_Object *o);
+EAPI void ewk_tiled_backing_store_contents_resize(Evas_Object *o, Evas_Coord width, Evas_Coord height);
+EAPI void ewk_tiled_backing_store_disabled_update_set(Evas_Object *o, Eina_Bool value);
+EAPI void ewk_tiled_backing_store_flush(Evas_Object *o);
+EAPI void ewk_tiled_backing_store_enable_scale_set(Evas_Object *o, Eina_Bool value);
+
+EAPI Ewk_Tile_Unused_Cache *ewk_tiled_backing_store_tile_unused_cache_get(const Evas_Object *o);
+EAPI void                   ewk_tiled_backing_store_tile_unused_cache_set(Evas_Object *o, Ewk_Tile_Unused_Cache *tuc);
+
+EAPI Eina_Bool ewk_tiled_backing_store_pre_render_region(Evas_Object *o, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h, float zoom);
+EAPI Eina_Bool ewk_tiled_backing_store_pre_render_relative_radius(Evas_Object *o, unsigned int n, float zoom);
+EAPI void ewk_tiled_backing_store_pre_render_cancel(Evas_Object *o);
+
+EAPI Eina_Bool ewk_tiled_backing_store_disable_render(Evas_Object *o);
+EAPI Eina_Bool ewk_tiled_backing_store_enable_render(Evas_Object *o);
+#ifdef __cplusplus
+}
+#endif
+#endif // ewk_tiled_backing_store_h