1 /* 2 Copyright (C) 2009-2010 Samsung Electronics 3 Copyright (C) 2009-2010 ProFUSION embedded systems 4 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. 9 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. 14 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. 19 */ 20 21 #ifndef ewk_tiled_backing_store_h 22 #define ewk_tiled_backing_store_h 23 24 #include "EWebKit.h" 25 26 /* Enable accounting of render time in tile statistics */ 27 // #define TILE_STATS_ACCOUNT_RENDER_TIME 28 29 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 33 */ 34 #define DEBUG_MEM_LEAKS 1 35 36 #define TILE_W (256) 37 #define TILE_H (256) 38 39 #define ZOOM_STEP_MIN (0.01) 40 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) 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 #include <Evas.h> 50 #include <cairo.h> 51 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; 55 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 */ 60 #endif 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. 64 */ 65 Eina_Bool full_update:1; /**< tile requires full size update */ 66 }; 67 68 struct _Ewk_Tile { 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 */ 74 75 /* TODO: does it worth to keep those or create on demand? */ 76 cairo_surface_t *surface; 77 cairo_t *cairo; 78 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 85 * alignement! 86 */ 87 int visible; /**< visibility counter of this tile */ 88 Evas_Object *image; /**< Evas Image, the tile to be rendered */ 89 uint8_t *pixels; 90 }; 91 92 #include "ewk_tiled_matrix.h" 93 #include "ewk_tiled_model.h" 94 95 /* view */ 96 EAPI Evas_Object *ewk_tiled_backing_store_add(Evas *e); 97 98 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); 99 100 EAPI Eina_Bool ewk_tiled_backing_store_scroll_full_offset_set(Evas_Object *o, Evas_Coord x, Evas_Coord y); 101 EAPI Eina_Bool ewk_tiled_backing_store_scroll_full_offset_add(Evas_Object *o, Evas_Coord dx, Evas_Coord dy); 102 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); 103 104 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); 105 EAPI Eina_Bool ewk_tiled_backing_store_zoom_weak_set(Evas_Object *o, float zoom, Evas_Coord cx, Evas_Coord cy); 106 EAPI void ewk_tiled_backing_store_fix_offsets(Evas_Object *o, Evas_Coord w, Evas_Coord h); 107 EAPI void ewk_tiled_backing_store_zoom_weak_smooth_scale_set(Evas_Object *o, Eina_Bool smooth_scale); 108 EAPI Eina_Bool ewk_tiled_backing_store_update(Evas_Object *o, const Eina_Rectangle *update); 109 EAPI void ewk_tiled_backing_store_updates_process_pre_set(Evas_Object *o, void *(*cb)(void *data, Evas_Object *o), const void *data); 110 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); 111 EAPI void ewk_tiled_backing_store_process_entire_queue_set(Evas_Object *o, Eina_Bool value); 112 EAPI void ewk_tiled_backing_store_updates_process(Evas_Object *o); 113 EAPI void ewk_tiled_backing_store_updates_clear(Evas_Object *o); 114 EAPI void ewk_tiled_backing_store_contents_resize(Evas_Object *o, Evas_Coord width, Evas_Coord height); 115 EAPI void ewk_tiled_backing_store_disabled_update_set(Evas_Object *o, Eina_Bool value); 116 EAPI void ewk_tiled_backing_store_flush(Evas_Object *o); 117 EAPI void ewk_tiled_backing_store_enable_scale_set(Evas_Object *o, Eina_Bool value); 118 119 EAPI Ewk_Tile_Unused_Cache *ewk_tiled_backing_store_tile_unused_cache_get(const Evas_Object *o); 120 EAPI void ewk_tiled_backing_store_tile_unused_cache_set(Evas_Object *o, Ewk_Tile_Unused_Cache *tuc); 121 122 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); 123 EAPI Eina_Bool ewk_tiled_backing_store_pre_render_relative_radius(Evas_Object *o, unsigned int n, float zoom); 124 EAPI void ewk_tiled_backing_store_pre_render_cancel(Evas_Object *o); 125 126 EAPI Eina_Bool ewk_tiled_backing_store_disable_render(Evas_Object *o); 127 EAPI Eina_Bool ewk_tiled_backing_store_enable_render(Evas_Object *o); 128 #ifdef __cplusplus 129 } 130 #endif 131 #endif // ewk_tiled_backing_store_h 132
