2 Copyright (C) 2009-2010 Samsung Electronics
3 Copyright (C) 2009-2010 ProFUSION embedded systems
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public License
16 along with this library; see the file COPYING.LIB. If not, write to
17 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
21 #ifndef ewk_tiled_backing_store_h
22 #define ewk_tiled_backing_store_h
26 /* Enable accounting of render time in tile statistics */
27 // #define TILE_STATS_ACCOUNT_RENDER_TIME
30 /* If define ewk will do more accounting to check for memory leaks
31 * try "kill -USR1 $PID" to get instantaneous debug
32 * try "kill -USR2 $PID" to get instantaneous debug and force flush of cache
34 #define DEBUG_MEM_LEAKS 1
39 #define ZOOM_STEP_MIN (0.01)
41 #define TILE_SIZE_AT_ZOOM(SIZE, ZOOM) ((int)roundf((SIZE) * (ZOOM)))
42 #define TILE_W_ZOOM_AT_SIZE(SIZE) ((float)SIZE / (float)TILE_W)
43 #define TILE_H_ZOOM_AT_SIZE(SIZE) ((float)SIZE / (float)TILE_H)
52 typedef struct _Ewk_Tile Ewk_Tile;
53 typedef struct _Ewk_Tile_Stats Ewk_Tile_Stats;
54 typedef struct _Ewk_Tile_Matrix Ewk_Tile_Matrix;
56 struct _Ewk_Tile_Stats {
57 double last_used; /**< time of last use */
58 #ifdef TILE_STATS_ACCOUNT_RENDER_TIME
59 double render_time; /**< amount of time this tile took to render */
61 unsigned int area; /**< cache for (w * h) */
62 unsigned int misses; /**< number of times it became dirty but not
63 * repainted at all since it was not visible.
65 Eina_Bool full_update:1; /**< tile requires full size update */
69 EINA_INLIST; /**< sibling tiles at same (i, j) but other zoom */
70 Eina_Tiler *updates; /**< updated/dirty areas */
71 Ewk_Tile_Stats stats; /**< tile usage statistics */
72 unsigned long col, row; /**< tile tile position */
73 Evas_Coord x, y; /**< tile coordinate position */
75 /* TODO: does it worth to keep those or create on demand? */
76 cairo_surface_t *surface;
79 /** Never ever change those after tile is created (respect const!) */
80 const Evas_Coord w, h; /**< tile size (see TILE_SIZE_AT_ZOOM()) */
81 const Evas_Colorspace cspace; /**< colorspace */
82 const float zoom; /**< zoom level contents were rendered at */
83 const size_t bytes; /**< bytes used in pixels. keep
84 * before pixels to guarantee
87 int visible; /**< visibility counter of this tile */
88 Evas_Object *image; /**< Evas Image, the tile to be rendered */
92 #include "ewk_tiled_matrix.h"
93 #include "ewk_tiled_model.h"
96 EAPI Evas_Object *ewk_tiled_backing_store_add(Evas*);
98 EAPI void ewk_tiled_backing_store_render_cb_set(Evas_Object*, Eina_Bool (*cb)(void *data, Ewk_Tile*, const Eina_Rectangle*), const void *data);
100 EAPI Eina_Bool ewk_tiled_backing_store_scroll_full_offset_set(Evas_Object*, Evas_Coord x, Evas_Coord y);
101 EAPI Eina_Bool ewk_tiled_backing_store_scroll_full_offset_add(Evas_Object*, Evas_Coord dx, Evas_Coord dy);
102 EAPI Eina_Bool ewk_tiled_backing_store_scroll_inner_offset_add(Evas_Object*, Evas_Coord dx, Evas_Coord dy, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h);
104 EAPI Eina_Bool ewk_tiled_backing_store_zoom_set(Evas_Object*, float *zoom, Evas_Coord cx, Evas_Coord cy, Evas_Coord *offx, Evas_Coord *offy);
105 EAPI Eina_Bool ewk_tiled_backing_store_zoom_weak_set(Evas_Object*, float zoom, Evas_Coord cx, Evas_Coord cy);
106 EAPI void ewk_tiled_backing_store_fix_offsets(Evas_Object*, Evas_Coord w, Evas_Coord h);
107 EAPI void ewk_tiled_backing_store_zoom_weak_smooth_scale_set(Evas_Object*, Eina_Bool smooth_scale);
108 EAPI Eina_Bool ewk_tiled_backing_store_update(Evas_Object*, const Eina_Rectangle*);
109 EAPI void ewk_tiled_backing_store_updates_process_pre_set(Evas_Object*, void *(*cb)(void *data, Evas_Object*), const void *data);
110 EAPI void ewk_tiled_backing_store_updates_process_post_set(Evas_Object*, void *(*cb)(void *data, void *pre_data, Evas_Object*), const void *data);
111 EAPI void ewk_tiled_backing_store_process_entire_queue_set(Evas_Object*, Eina_Bool value);
112 EAPI void ewk_tiled_backing_store_updates_process(Evas_Object*);
113 EAPI void ewk_tiled_backing_store_updates_clear(Evas_Object*);
114 EAPI void ewk_tiled_backing_store_contents_resize(Evas_Object*, Evas_Coord width, Evas_Coord height);
115 EAPI void ewk_tiled_backing_store_disabled_update_set(Evas_Object*, Eina_Bool value);
116 EAPI void ewk_tiled_backing_store_flush(Evas_Object*);
117 EAPI void ewk_tiled_backing_store_enable_scale_set(Evas_Object*, Eina_Bool value);
119 EAPI Ewk_Tile_Unused_Cache *ewk_tiled_backing_store_tile_unused_cache_get(const Evas_Object*);
120 EAPI void ewk_tiled_backing_store_tile_unused_cache_set(Evas_Object*, Ewk_Tile_Unused_Cache*);
122 EAPI Eina_Bool ewk_tiled_backing_store_pre_render_region(Evas_Object*, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h, float zoom);
123 EAPI Eina_Bool ewk_tiled_backing_store_pre_render_relative_radius(Evas_Object*, unsigned int number, float zoom);
124 EAPI void ewk_tiled_backing_store_pre_render_cancel(Evas_Object*);
126 EAPI Eina_Bool ewk_tiled_backing_store_disable_render(Evas_Object*);
127 EAPI Eina_Bool ewk_tiled_backing_store_enable_render(Evas_Object*);
131 #endif // ewk_tiled_backing_store_h