blob: ddae17347ebe21263c17b7353370eb1908102fef [file] [log] [blame]
/*
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.
*/
#include "config.h"
#include "ewk_private.h"
#include "ewk_tiled_backing_store_private.h"
#include "ewk_tiled_matrix_private.h"
#include "ewk_tiled_model_private.h"
#include <Ecore.h>
#include <Eina.h>
#include <algorithm>
#include <errno.h>
#include <math.h>
#include <stdio.h> // XXX REMOVE ME LATER
#include <stdlib.h>
#include <string.h>
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
typedef struct _Ewk_Tiled_Backing_Store_Data Ewk_Tiled_Backing_Store_Data;
typedef struct _Ewk_Tiled_Backing_Store_Item Ewk_Tiled_Backing_Store_Item;
typedef struct _Ewk_Tiled_Backing_Store_Pre_Render_Request Ewk_Tiled_Backing_Store_Pre_Render_Request;
struct _Ewk_Tiled_Backing_Store_Item {
EINA_INLIST;
Ewk_Tile* tile;
Evas_Coord_Rectangle geometry;
bool smoothScale;
};
struct _Ewk_Tiled_Backing_Store_Pre_Render_Request {
EINA_INLIST;
unsigned long column, row;
float zoom;
};
struct _Ewk_Tiled_Backing_Store_Data {
Evas_Object_Smart_Clipped_Data base;
Evas_Object* self;
Evas_Object* contentsClipper;
struct {
Eina_Inlist** items;
Evas_Coord x, y, width, height;
unsigned long columns, rows;
struct {
Evas_Coord width, height;
float zoom;
bool zoomWeakSmoothScale : 1;
bool hasAlpha : 1;
} tile;
struct {
struct {
Evas_Coord x, y;
} current, old, base, zoomCenter;
} offset;
bool visible : 1;
} view;
Evas_Colorspace colorSpace;
struct {
Ewk_Tile_Matrix* matrix;
struct {
unsigned long column, row;
} base;
struct {
unsigned long columns, rows;
} current, old;
Evas_Coord width, height;
} model;
struct {
bool (*callback)(void* data, Ewk_Tile* tile, const Eina_Rectangle* area);
void* data;
Eina_Inlist* preRenderRequests;
Ecore_Idler* idler;
bool disabled;
bool suspend : 1;
} render;
struct {
void* (*preCallback)(void* data, Evas_Object* ewkBackingStore);
void* preData;
void* (*postCallback)(void* data, void* preData, Evas_Object* ewkBackingStore);
void* postData;
} process;
struct {
bool any : 1;
bool position : 1;
bool size : 1;
bool model : 1;
bool offset : 1;
bool contentsSize : 1;
} changed;
#ifdef DEBUG_MEM_LEAKS
Ecore_Event_Handler* signalUser;
#endif
};
static Evas_Smart_Class _parent_sc = EVAS_SMART_CLASS_INIT_NULL;
#define PRIV_DATA_GET_OR_RETURN(obj, ptr, ...) \
Ewk_Tiled_Backing_Store_Data* ptr = static_cast<Ewk_Tiled_Backing_Store_Data*>(evas_object_smart_data_get(obj)); \
if (!ptr) { \
CRITICAL("no private data in obj=%p", obj); \
return __VA_ARGS__; \
}
static void _ewk_tiled_backing_store_fill_renderers(Ewk_Tiled_Backing_Store_Data* priv);
static inline void _ewk_tiled_backing_store_changed(Ewk_Tiled_Backing_Store_Data* priv);
#ifdef DEBUG_MEM_LEAKS
static inline void _ewk_tiled_backing_store_view_dbg(const Ewk_Tiled_Backing_Store_Data* priv);
#endif
static inline void _ewk_tiled_backing_store_updates_process(Ewk_Tiled_Backing_Store_Data* priv)
{
/* Do not process updates. Note that we still want to get updates requests
* in the queue in order to not miss any updates after the render is
* resumed.
*/
if (priv->render.suspend || !priv->view.visible)
return;
void* data = priv->process.preCallback ? priv->process.preCallback(priv->process.preData, priv->self) : 0;
ewk_tile_matrix_updates_process(priv->model.matrix);
if (priv->process.postCallback)
priv->process.postCallback(priv->process.postData, data, priv->self);
}
static void _ewk_tiled_backing_store_flush(void* data)
{
Ewk_Tiled_Backing_Store_Data* priv = static_cast<Ewk_Tiled_Backing_Store_Data*>(data);
Ewk_Tile_Unused_Cache* tiledUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
if (tiledUnusedCache) {
DBG("flush unused tile cache.");
ewk_tile_unused_cache_auto_flush(tiledUnusedCache);
} else
ERR("no cache?!");
}
static Ewk_Tile* _ewk_tiled_backing_store_tile_new(Ewk_Tiled_Backing_Store_Data* priv, unsigned long column, unsigned long row, float zoom)
{
Evas* evas = evas_object_evas_get(priv->self);
if (!evas) {
CRITICAL("evas_object_evas_get failed!");
return 0;
}
Ewk_Tile* tile = ewk_tile_matrix_tile_new(priv->model.matrix, evas, column, row, zoom);
if (!tile) {
CRITICAL("ewk_tile_matrix_tile_new failed!");
return 0;
}
return tile;
}
static void _ewk_tiled_backing_store_item_move(Ewk_Tiled_Backing_Store_Item* item, Evas_Coord x, Evas_Coord y)
{
item->geometry.x = x;
item->geometry.y = y;
if (item->tile)
evas_object_move(item->tile->image, x, y);
}
static void _ewk_tiled_backing_store_item_resize(Ewk_Tiled_Backing_Store_Item* item, Evas_Coord width, Evas_Coord height)
{
item->geometry.w = width;
item->geometry.h = height;
if (!item->tile)
return;
evas_object_resize(item->tile->image, width, height);
evas_object_image_fill_set(item->tile->image, 0, 0, width, height);
}
static void _ewk_tiled_backing_store_tile_associate(Ewk_Tiled_Backing_Store_Data* priv, Ewk_Tile* tile, Ewk_Tiled_Backing_Store_Item* item)
{
if (item->tile)
CRITICAL("item->tile=%p, but it should be 0!", item->tile);
item->tile = tile;
evas_object_move(item->tile->image, item->geometry.x, item->geometry.y);
evas_object_resize(item->tile->image, item->geometry.w, item->geometry.h);
evas_object_image_fill_set(item->tile->image, 0, 0, item->geometry.w, item->geometry.h);
evas_object_image_smooth_scale_set(item->tile->image, item->smoothScale);
evas_object_image_alpha_set(item->tile->image, priv->view.tile.hasAlpha);
if (!ewk_tile_visible_get(tile))
evas_object_smart_member_add(tile->image, priv->self);
ewk_tile_show(tile);
}
static void _ewk_tiled_backing_store_tile_dissociate(Ewk_Tiled_Backing_Store_Data* priv, Ewk_Tiled_Backing_Store_Item* item, double lastUsed)
{
ewk_tile_hide(item->tile);
if (!ewk_tile_visible_get(item->tile))
evas_object_smart_member_del(item->tile->image);
ewk_tile_matrix_tile_put(priv->model.matrix, item->tile, lastUsed);
Ewk_Tile_Unused_Cache* tileUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
ewk_tile_unused_cache_auto_flush(tileUnusedCache);
item->tile = 0;
}
static void _ewk_tiled_backing_store_tile_dissociate_all(Ewk_Tiled_Backing_Store_Data* priv)
{
double last_used = ecore_loop_time_get();
for (unsigned long i = 0; i < priv->view.rows; ++i) {
Ewk_Tiled_Backing_Store_Item* item;
Eina_Inlist* list = priv->view.items[i];
EINA_INLIST_FOREACH(list, item) {
if (item->tile)
_ewk_tiled_backing_store_tile_dissociate(priv, item, last_used);
}
}
}
static inline bool _ewk_tiled_backing_store_pre_render_request_add(Ewk_Tiled_Backing_Store_Data* priv, unsigned long column, unsigned long row, float zoom)
{
Ewk_Tiled_Backing_Store_Pre_Render_Request* request = new Ewk_Tiled_Backing_Store_Pre_Render_Request;
priv->render.preRenderRequests = eina_inlist_append(priv->render.preRenderRequests, EINA_INLIST_GET(request));
request->column = column;
request->row = row;
request->zoom = zoom;
return true;
}
static inline void _ewk_tiled_backing_store_pre_render_request_del(Ewk_Tiled_Backing_Store_Data* priv, Ewk_Tiled_Backing_Store_Pre_Render_Request* request)
{
priv->render.preRenderRequests = eina_inlist_remove(priv->render.preRenderRequests, EINA_INLIST_GET(request));
delete request;
}
static inline Ewk_Tiled_Backing_Store_Pre_Render_Request* _ewk_tiled_backing_store_pre_render_request_first(const Ewk_Tiled_Backing_Store_Data* priv)
{
return EINA_INLIST_CONTAINER_GET(priv->render.preRenderRequests, Ewk_Tiled_Backing_Store_Pre_Render_Request);
}
static void _ewk_tiled_backing_store_pre_render_request_flush(Ewk_Tiled_Backing_Store_Data* priv)
{
Eina_Inlist** preRenderList = &priv->render.preRenderRequests;
while (*preRenderList) {
Ewk_Tiled_Backing_Store_Pre_Render_Request* request;
request = _ewk_tiled_backing_store_pre_render_request_first(priv);
*preRenderList = eina_inlist_remove(*preRenderList, *preRenderList);
delete request;
}
}
static void _ewk_tiled_backing_store_pre_render_request_clear(Ewk_Tiled_Backing_Store_Data* priv)
{
Eina_Inlist** preRenderList = &priv->render.preRenderRequests;
Eina_Inlist* iter = *preRenderList;
while (iter) {
Ewk_Tiled_Backing_Store_Pre_Render_Request* request = EINA_INLIST_CONTAINER_GET(iter, Ewk_Tiled_Backing_Store_Pre_Render_Request);
Eina_Inlist* next = iter->next;
*preRenderList = eina_inlist_remove(*preRenderList, iter);
iter = next;
delete request;
}
}
/* assumes priv->process.preCallback was called if required! */
static void _ewk_tiled_backing_store_pre_render_request_process_single(Ewk_Tiled_Backing_Store_Data* priv)
{
Ewk_Tile_Matrix* tileMatrix = priv->model.matrix;
double last_used = ecore_loop_time_get();
Ewk_Tiled_Backing_Store_Pre_Render_Request* request = _ewk_tiled_backing_store_pre_render_request_first(priv);
if (!request)
return;
unsigned long column = request->column;
unsigned long row = request->row;
float zoom = request->zoom;
if (ewk_tile_matrix_tile_exact_exists(tileMatrix, column, row, zoom)) {
DBG("no pre-render required for tile %lu,%lu @ %f.", column, row, zoom);
_ewk_tiled_backing_store_pre_render_request_del(priv, request);
ewk_tile_unused_cache_auto_flush(ewk_tile_matrix_unused_cache_get(priv->model.matrix));
return;
}
Ewk_Tile* tile = _ewk_tiled_backing_store_tile_new(priv, column, row, zoom);
if (!tile) {
_ewk_tiled_backing_store_pre_render_request_del(priv, request);
ewk_tile_unused_cache_auto_flush(ewk_tile_matrix_unused_cache_get(priv->model.matrix));
return;
}
Eina_Rectangle area;
EINA_RECTANGLE_SET(&area, 0, 0, priv->view.tile.width, priv->view.tile.height);
priv->render.callback(priv->render.data, tile, &area);
evas_object_image_data_update_add(tile->image, area.x, area.y, area.w, area.h);
ewk_tile_matrix_tile_updates_clear(tileMatrix, tile);
ewk_tile_matrix_tile_put(tileMatrix, tile, last_used);
}
static Eina_Bool _ewk_tiled_backing_store_item_process_idler_cb(void* data)
{
Ewk_Tiled_Backing_Store_Data* priv = static_cast<Ewk_Tiled_Backing_Store_Data*>(data);
if (priv->process.preCallback)
data = priv->process.preCallback(priv->process.preData, priv->self);
_ewk_tiled_backing_store_pre_render_request_process_single(priv);
if (priv->process.postCallback)
priv->process.postCallback(priv->process.postData, data, priv->self);
if (!priv->render.preRenderRequests) {
priv->render.idler = 0;
return false;
}
return true;
}
static inline void _ewk_tiled_backing_store_item_process_idler_stop(Ewk_Tiled_Backing_Store_Data* priv)
{
if (!priv->render.idler)
return;
ecore_idler_del(priv->render.idler);
priv->render.idler = 0;
}
static inline void _ewk_tiled_backing_store_item_process_idler_start(Ewk_Tiled_Backing_Store_Data* priv)
{
if (priv->render.idler || !priv->view.visible)
return;
priv->render.idler = ecore_idler_add(_ewk_tiled_backing_store_item_process_idler_cb, priv);
}
static bool _ewk_tiled_backing_store_disable_render(Ewk_Tiled_Backing_Store_Data* priv)
{
if (priv->render.suspend)
return true;
priv->render.suspend = true;
_ewk_tiled_backing_store_item_process_idler_stop(priv);
return true;
}
static bool _ewk_tiled_backing_store_enable_render(Ewk_Tiled_Backing_Store_Data* priv)
{
if (!priv->render.suspend)
return true;
priv->render.suspend = false;
_ewk_tiled_backing_store_fill_renderers(priv);
_ewk_tiled_backing_store_item_process_idler_start(priv);
return true;
}
static inline bool _ewk_tiled_backing_store_item_fill(Ewk_Tiled_Backing_Store_Data* priv, Ewk_Tiled_Backing_Store_Item* item, unsigned long column, unsigned long row)
{
if (!priv->view.visible)
return false;
unsigned long currentColumn = priv->model.base.column + column;
unsigned long currentRow = priv->model.base.row + row;
double lastUsed = ecore_loop_time_get();
if (currentColumn >= priv->model.current.columns || currentRow >= priv->model.current.rows) {
if (item->tile)
_ewk_tiled_backing_store_tile_dissociate(priv, item, lastUsed);
} else {
const float zoom = priv->view.tile.zoom;
if (item->tile) {
Ewk_Tile* old = item->tile;
if (old->row != currentRow || old->column != currentColumn || old->zoom != zoom)
_ewk_tiled_backing_store_tile_dissociate(priv, item, lastUsed);
else if (old->row == currentRow && old->column == currentColumn && old->zoom == zoom)
return true;
}
Ewk_Tile* tile = ewk_tile_matrix_tile_exact_get(priv->model.matrix, currentColumn, currentRow, zoom);
if (!tile) {
/* NOTE: it never returns 0 if item->tile was set! */
if (item->tile) {
CRITICAL("item->tile=%p, but it should be 0!", item->tile);
_ewk_tiled_backing_store_tile_dissociate(priv, item,
lastUsed);
}
/* Do not add new requests to the render queue */
if (!priv->render.suspend) {
tile = _ewk_tiled_backing_store_tile_new(priv, currentColumn, currentRow, zoom);
if (!tile)
return false;
_ewk_tiled_backing_store_tile_associate(priv, tile, item);
}
} else if (tile != item->tile) {
if (item->tile)
_ewk_tiled_backing_store_tile_dissociate(priv,
item, lastUsed);
_ewk_tiled_backing_store_tile_associate(priv, tile, item);
}
}
return true;
}
static Ewk_Tiled_Backing_Store_Item* _ewk_tiled_backing_store_item_add(Ewk_Tiled_Backing_Store_Data* priv, unsigned long column, unsigned long row)
{
DBG("ewkBackingStore=%p", priv->self);
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
Evas_Coord x = priv->view.offset.base.x + priv->view.x + tileWidth * column;
Evas_Coord y = priv->view.offset.base.y + priv->view.y + tileHeight * row;
OwnPtr<Ewk_Tiled_Backing_Store_Item> item = adoptPtr(new Ewk_Tiled_Backing_Store_Item);
item->tile = 0;
item->smoothScale = priv->view.tile.zoomWeakSmoothScale;
_ewk_tiled_backing_store_item_move(item.get(), x, y);
_ewk_tiled_backing_store_item_resize(item.get(), tileWidth, tileHeight);
if (!_ewk_tiled_backing_store_item_fill(priv, item.get(), column, row))
return 0;
return item.leakPtr();
}
static void _ewk_tiled_backing_store_item_del(Ewk_Tiled_Backing_Store_Data* priv, Ewk_Tiled_Backing_Store_Item* item)
{
if (item->tile) {
double last_used = ecore_loop_time_get();
_ewk_tiled_backing_store_tile_dissociate(priv, item, last_used);
}
delete item;
}
static void _ewk_tiled_backing_store_item_smooth_scale_set(Ewk_Tiled_Backing_Store_Item* item, bool smoothScale)
{
if (item->smoothScale == smoothScale)
return;
if (item->tile)
evas_object_image_smooth_scale_set(item->tile->image, smoothScale);
}
static inline void _ewk_tiled_backing_store_changed(Ewk_Tiled_Backing_Store_Data* priv)
{
if (priv->changed.any)
return;
evas_object_smart_changed(priv->self);
priv->changed.any = true;
}
static void _ewk_tiled_backing_store_view_cols_end_del(Ewk_Tiled_Backing_Store_Data* priv, Eina_Inlist** rowList, unsigned long count)
{
if (!count)
return;
Eina_Inlist* nextItem = (*rowList)->last;
for (unsigned long i = 0; i < count; ++i) {
Ewk_Tiled_Backing_Store_Item* item;
item = EINA_INLIST_CONTAINER_GET(nextItem, Ewk_Tiled_Backing_Store_Item);
nextItem = nextItem->prev;
*rowList = eina_inlist_remove(*rowList, EINA_INLIST_GET(item));
_ewk_tiled_backing_store_item_del(priv, item);
}
}
static bool _ewk_tiled_backing_store_view_cols_end_add(Ewk_Tiled_Backing_Store_Data* priv, Eina_Inlist** rowList, unsigned long baseColumn, unsigned long count)
{
const unsigned long row = rowList - priv->view.items;
for (unsigned long i = 0; i < count; ++i, ++baseColumn) {
Ewk_Tiled_Backing_Store_Item* item = _ewk_tiled_backing_store_item_add(priv, baseColumn, row);
if (!item) {
CRITICAL("failed to add column %lu of %lu in row %lu.", i, count, row);
_ewk_tiled_backing_store_view_cols_end_del(priv, rowList, i);
return false;
}
*rowList = eina_inlist_append(*rowList, EINA_INLIST_GET(item));
}
return true;
}
static void _ewk_tiled_backing_store_view_row_del(Ewk_Tiled_Backing_Store_Data* priv, Eina_Inlist* row)
{
while (row) {
Ewk_Tiled_Backing_Store_Item* item = EINA_INLIST_CONTAINER_GET(row, Ewk_Tiled_Backing_Store_Item);
row = row->next;
_ewk_tiled_backing_store_item_del(priv, item);
}
}
static void _ewk_tiled_backing_store_view_rows_range_del(Ewk_Tiled_Backing_Store_Data* priv, Eina_Inlist** start, Eina_Inlist** end)
{
for (; start < end; ++start) {
_ewk_tiled_backing_store_view_row_del(priv, *start);
*start = 0;
}
}
static void _ewk_tiled_backing_store_view_rows_all_del(Ewk_Tiled_Backing_Store_Data* priv)
{
Eina_Inlist** start = priv->view.items;
Eina_Inlist** end = priv->view.items + priv->view.rows;
_ewk_tiled_backing_store_view_rows_range_del(priv, start, end);
free(priv->view.items);
priv->view.items = 0;
priv->view.columns = 0;
priv->view.rows = 0;
}
static void _ewk_tiled_backing_store_render(void* data, Ewk_Tile* tile, const Eina_Rectangle* area)
{
Ewk_Tiled_Backing_Store_Data* priv = static_cast<Ewk_Tiled_Backing_Store_Data*>(data);
INFO("TODO %p (visible? %d) [%lu,%lu] %d,%d + %dx%d",
tile, tile->visible, tile->column, tile->row, area->x, area->y, area->w, area->h);
if (!tile->visible)
return;
if (priv->view.tile.width != tile->width || priv->view.tile.height != tile->height)
return; // todo: remove me later, don't even flag as dirty!
EINA_SAFETY_ON_NULL_RETURN(priv->render.callback);
if (!priv->render.callback(priv->render.data, tile, area))
return;
evas_object_image_data_update_add(tile->image, area->x, area->y, area->w, area->h);
}
static inline void _ewk_tiled_backing_store_model_matrix_create(Ewk_Tiled_Backing_Store_Data* priv, Ewk_Tile_Unused_Cache* tileUnusedCache)
{
if (priv->model.matrix) {
_ewk_tiled_backing_store_view_rows_all_del(priv);
priv->changed.offset = false;
priv->changed.size = true;
ewk_tile_matrix_free(priv->model.matrix);
}
priv->model.matrix = ewk_tile_matrix_new(tileUnusedCache, priv->model.current.columns, priv->model.current.rows, priv->view.tile.zoom, priv->colorSpace, _ewk_tiled_backing_store_render, priv);
}
static void _ewk_tiled_backing_store_smart_member_del(Evas_Object* ewkBackingStore, Evas_Object* member)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
if (!priv->contentsClipper)
return;
evas_object_clip_unset(member);
if (!evas_object_clipees_get(priv->contentsClipper))
evas_object_hide(priv->contentsClipper);
}
static void _ewk_tiled_backing_store_smart_member_add(Evas_Object* ewkBackingStore, Evas_Object* member)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
if (!priv->contentsClipper)
return;
evas_object_clip_set(member, priv->contentsClipper);
if (priv->view.visible)
evas_object_show(priv->contentsClipper);
}
#ifdef DEBUG_MEM_LEAKS
static void _ewk_tiled_backing_store_mem_dbg(Ewk_Tiled_Backing_Store_Data* priv)
{
static unsigned run = 0;
++run;
printf("\n--- BEGIN DEBUG TILED BACKING STORE MEMORY [%d] --\n"
"tile=%0.2f, obj=%p, priv=%p, view.items=%p, matrix=%p\n",
run, ecore_loop_time_get(),
priv->self, priv, priv->view.items, priv->model.matrix);
ewk_tile_matrix_dbg(priv->model.matrix);
ewk_tile_accounting_dbg();
printf("--- END DEBUG TILED BACKING STORE MEMORY [%d] --\n\n", run);
}
static bool _ewk_tiled_backing_store_sig_usr(void* data, int type, void* event)
{
Ecore_Event_Signal_User* signalUser = static_cast<Ecore_Event_Signal_User*>(event);
Ewk_Tiled_Backing_Store_Data* priv = static_cast<Ewk_Tiled_Backing_Store_Data*>(data);
if (signalUser->number == 2) {
Ewk_Tile_Unused_Cache* tileUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
ewk_tile_unused_cache_auto_flush(tileUnusedCache);
}
_ewk_tiled_backing_store_view_dbg(priv);
_ewk_tiled_backing_store_mem_dbg(priv);
return true;
}
#endif
static void _ewk_tiled_backing_store_smart_add(Evas_Object* ewkBackingStore)
{
DBG("ewkBackingStore=%p", ewkBackingStore);
Ewk_Tiled_Backing_Store_Data* priv = static_cast<Ewk_Tiled_Backing_Store_Data*>(calloc(1, sizeof(*priv)));
if (!priv)
return;
priv->self = ewkBackingStore;
priv->view.tile.zoom = 1.0;
priv->view.tile.width = defaultTileWidth;
priv->view.tile.height = defaultTileHeigth;
priv->view.offset.current.x = 0;
priv->view.offset.current.y = 0;
priv->view.offset.old.x = 0;
priv->view.offset.old.y = 0;
priv->view.offset.base.x = 0;
priv->view.offset.base.y = 0;
priv->model.base.column = 0;
priv->model.base.row = 0;
priv->model.current.columns = 1;
priv->model.current.rows = 1;
priv->model.old.columns = 0;
priv->model.old.rows = 0;
priv->model.width = 0;
priv->model.height = 0;
priv->render.suspend = false;
priv->colorSpace = EVAS_COLORSPACE_ARGB8888; // TODO: detect it.
evas_object_smart_data_set(ewkBackingStore, priv);
_parent_sc.add(ewkBackingStore);
priv->contentsClipper = evas_object_rectangle_add(
evas_object_evas_get(ewkBackingStore));
evas_object_move(priv->contentsClipper, 0, 0);
evas_object_resize(priv->contentsClipper,
priv->model.width, priv->model.height);
evas_object_color_set(priv->contentsClipper, 255, 255, 255, 255);
evas_object_show(priv->contentsClipper);
evas_object_smart_member_add(priv->contentsClipper, ewkBackingStore);
_ewk_tiled_backing_store_model_matrix_create(priv, 0);
evas_object_move(priv->base.clipper, 0, 0);
evas_object_resize(priv->base.clipper, 0, 0);
evas_object_clip_set(priv->contentsClipper, priv->base.clipper);
#ifdef DEBUG_MEM_LEAKS
priv->signalUser = ecore_event_handler_add
(ECORE_EVENT_SIGNAL_USER, _ewk_tiled_backing_store_sig_usr, priv);
#endif
}
static void _ewk_tiled_backing_store_smart_del(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
DBG("ewkBackingStore=%p", ewkBackingStore);
Ewk_Tile_Unused_Cache* tileUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
ewk_tile_unused_cache_unlock_area(tileUnusedCache);
_ewk_tiled_backing_store_flush(priv);
_ewk_tiled_backing_store_pre_render_request_flush(priv);
_ewk_tiled_backing_store_item_process_idler_stop(priv);
_ewk_tiled_backing_store_view_rows_all_del(priv);
#ifdef DEBUG_MEM_LEAKS
_ewk_tiled_backing_store_mem_dbg(priv);
if (priv->sig_usr)
ecore_event_handler_del(priv->sig_usr);
#endif
ewk_tile_matrix_free(priv->model.matrix);
evas_object_smart_member_del(priv->contentsClipper);
evas_object_del(priv->contentsClipper);
_parent_sc.del(ewkBackingStore);
#ifdef DEBUG_MEM_LEAKS
printf("\nIMPORTANT: TILED BACKING STORE DELETED (may be real leaks)\n");
ewk_tile_accounting_dbg();
#endif
}
static void _ewk_tiled_backing_store_smart_move(Evas_Object* ewkBackingStore, Evas_Coord x, Evas_Coord y)
{
DBG("ewkBackingStore=%p, new pos: %dx%d", ewkBackingStore, x, y);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
if (priv->changed.position)
return;
if (priv->view.x == x && priv->view.y == y)
return;
priv->changed.position = true;
_ewk_tiled_backing_store_changed(priv);
}
static void _ewk_tiled_backing_store_smart_resize(Evas_Object* ewkBackingStore, Evas_Coord width, Evas_Coord height)
{
DBG("ewkBackingStore=%p, new size: %dx%d", ewkBackingStore, width, height);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
if (priv->changed.size)
return;
if (priv->view.width == width && priv->view.height == height)
return;
priv->changed.size = true;
_ewk_tiled_backing_store_changed(priv);
}
static void _ewk_tiled_backing_store_smart_show(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->view.visible = true;
ewk_tiled_backing_store_enable_render(ewkBackingStore);
_parent_sc.show(ewkBackingStore);
}
static void _ewk_tiled_backing_store_smart_hide(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->view.visible = false;
ewk_tiled_backing_store_disable_render(ewkBackingStore);
_ewk_tiled_backing_store_tile_dissociate_all(priv);
_parent_sc.hide(ewkBackingStore);
}
static void _ewk_tiled_backing_store_recalc_renderers(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord width, Evas_Coord height, Evas_Coord tileWidth, Evas_Coord tileHeight)
{
INFO("ewkBackingStore=%p, new size: %dx%d", priv->self, width, height);
unsigned long columns = 1 + static_cast<unsigned long>(ceil(width / static_cast<float>(tileWidth)));
unsigned long rows = 1 + static_cast<unsigned long>(ceil(height / static_cast<float>(tileHeight)));
INFO("ewkBackingStore=%p new grid size columns: %lu, rows: %lu, was %lu, %lu", priv->self, columns, rows, priv->view.columns, priv->view.rows);
if (priv->view.columns == columns && priv->view.rows == rows)
return;
unsigned long oldCols = priv->view.columns;
unsigned long oldRows = priv->view.rows;
if (rows < oldRows) {
Eina_Inlist** start = priv->view.items + rows;
Eina_Inlist** end = priv->view.items + oldRows;
_ewk_tiled_backing_store_view_rows_range_del(priv, start, end);
}
void* newItems = realloc(priv->view.items, sizeof(Eina_Inlist*) * rows);
if (!newItems)
return;
priv->view.items = static_cast<Eina_Inlist**>(newItems);
priv->view.rows = rows;
priv->view.columns = columns;
if (rows > oldRows) {
Eina_Inlist** start = priv->view.items + oldRows;
Eina_Inlist** end = priv->view.items + rows;
for (; start < end; ++start) {
*start = 0;
bool result = _ewk_tiled_backing_store_view_cols_end_add(priv, start, 0, columns);
if (!result) {
CRITICAL("failed to allocate %ld columns", columns);
_ewk_tiled_backing_store_view_rows_range_del(priv, priv->view.items + oldRows, start);
priv->view.rows = oldRows;
return;
}
}
}
if (columns != oldCols) {
long todo = columns - oldCols;
Eina_Inlist** start = priv->view.items;
Eina_Inlist** end = start + std::min(oldRows, rows);
if (todo > 0) {
for (; start < end; ++start) {
bool result = _ewk_tiled_backing_store_view_cols_end_add(priv, start, oldCols, todo);
if (!result) {
CRITICAL("failed to allocate %ld columns!", todo);
for (start--; start >= priv->view.items; --start)
_ewk_tiled_backing_store_view_cols_end_del(priv, start, todo);
if (rows > oldRows) {
start = priv->view.items + oldRows;
end = priv->view.items + rows;
for (; start < end; start++)
_ewk_tiled_backing_store_view_cols_end_del(priv, start, todo);
}
return;
}
}
} else if (todo < 0) {
todo = -todo;
for (; start < end; ++start)
_ewk_tiled_backing_store_view_cols_end_del(priv, start, todo);
}
}
_ewk_tiled_backing_store_fill_renderers(priv);
}
static void _ewk_tiled_backing_store_smart_calculate_size(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord width, Evas_Coord height)
{
evas_object_resize(priv->base.clipper, width, height);
priv->view.width = width;
priv->view.height = height;
_ewk_tiled_backing_store_recalc_renderers(priv, width, height, priv->view.tile.width, priv->view.tile.height);
}
#ifdef DEBUG_MEM_LEAKS
// TODO: remove me later.
static inline void _ewk_tiled_backing_store_view_dbg(const Ewk_Tiled_Backing_Store_Data* priv)
{
printf("tiles=%2ld,%2ld model=%2ld,%2ld [%dx%d] base=%+3ld,%+4ld offset=%+4d,%+4d old=%+4d,%+4d base=%+3d,%+3d\n",
priv->view.columns, priv->view.rows,
priv->model.current.columns, priv->model.current.rows,
priv->model.width, priv->model.height,
priv->model.base.column, priv->model.base.row,
priv->view.offset.current.x, priv->view.offset.current.y,
priv->view.offset.old.x, priv->view.offset.old.y,
priv->view.offset.base.x, priv->view.offset.base.y);
Eina_Inlist** start = priv->view.items;
Eina_Inlist** end = priv->view.items + priv->view.rows;
for (; start < end; ++start) {
const Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(*start, item) {
printf(" %+4d,%+4d ", item->geometry.x, item->geometry.y);
if (!item->tile)
printf(" ;");
else
printf("%8p %lu,%lu;", item->tile, item->tile->column, item->tile->row);
}
printf("\n");
}
printf("---\n");
}
#endif
/**
* @internal
* Move top row down as last.
*
* The final result is visually the same, but logically the top that
* went out of screen is now at bottom and filled with new model items.
*
* This is worth just when @a count is smaller than @c
* priv->view.rows, after that one is refilling the whole matrix so it
* is better to trigger full refill.
*
* @param count the number of times to repeat the process.
*/
static void _ewk_tiled_backing_store_view_wrap_up(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y, unsigned long count)
{
unsigned long lastRow = priv->view.rows - 1;
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
Evas_Coord offsetY = priv->view.offset.base.y + count * tileHeight;
Evas_Coord tilePositionY = y + (lastRow - count + 1) * tileHeight + offsetY;
Evas_Coord originX = x + priv->view.offset.base.x;
Eina_Inlist** start = priv->view.items;
Eina_Inlist** end = start + lastRow;
for (; count > 0; --count) {
Eina_Inlist** it;
Eina_Inlist* temp = *start;
for (it = start; it < end; ++it)
*it = *(it + 1);
*it = temp;
++priv->model.base.row;
Evas_Coord tilePositionX = originX;
unsigned long column = 0;
Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(temp, item) {
_ewk_tiled_backing_store_item_move(item, tilePositionX, tilePositionY);
tilePositionX += tileWidth;
_ewk_tiled_backing_store_item_fill(priv, item, column, lastRow);
++column;
}
tilePositionY += tileHeight;
}
priv->view.offset.base.y = offsetY;
}
/**
* @internal
* Move bottom row up as first.
*
* The final result is visually the same, but logically the bottom that
* went out of screen is now at top and filled with new model items.
*
* This is worth just when @a count is smaller than @c
* priv->view.rows, after that one is refilling the whole matrix so it
* is better to trigger full refill.
*
* @param count the number of times to repeat the process.
*/
static void _ewk_tiled_backing_store_view_wrap_down(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y, unsigned long count)
{
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
Evas_Coord offsetY = priv->view.offset.base.y - count * tileHeight;
Evas_Coord tilePositionY = y + offsetY + (count - 1) * tileHeight;
Evas_Coord originX = x + priv->view.offset.base.x;
Eina_Inlist** start = priv->view.items + priv->view.rows - 1;
Eina_Inlist** end = priv->view.items;
for (; count > 0; --count) {
Eina_Inlist** it;
Eina_Inlist* temp = *start;
Evas_Coord tilePositionX = originX;
for (it = start; it > end; --it)
*it = *(it - 1);
*it = temp;
--priv->model.base.row;
unsigned long column = 0;
Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(temp, item) {
_ewk_tiled_backing_store_item_move(item, tilePositionX, tilePositionY);
tilePositionX += tileWidth;
_ewk_tiled_backing_store_item_fill(priv, item, column, 0);
++column;
}
tilePositionY -= tileHeight;
}
priv->view.offset.base.y = offsetY;
}
/**
* @internal
* Move left-most (first) column right as last (right-most).
*
* The final result is visually the same, but logically the first column that
* went out of screen is now at last and filled with new model items.
*
* This is worth just when @a count is smaller than @c
* priv->view.columns, after that one is refilling the whole matrix so it
* is better to trigger full refill.
*
* @param count the number of times to repeat the process.
*/
static void _ewk_tiled_backing_store_view_wrap_left(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y, unsigned long count)
{
unsigned long lastColumn = priv->view.columns - 1;
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
Evas_Coord offsetX = priv->view.offset.base.x + count * tileWidth;
Evas_Coord offsetY = y + priv->view.offset.base.y;
unsigned long baseColumn = lastColumn - count + 1;
Evas_Coord originX = x + baseColumn * tileWidth + offsetX;
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
priv->model.base.column += count;
for (unsigned long row = 0; it < end; ++it, ++row) {
Evas_Coord tilePositionX = originX;
unsigned long column = baseColumn;
for (unsigned long i = 0; i < count; ++i, ++column, tilePositionX += tileWidth) {
Ewk_Tiled_Backing_Store_Item* item = EINA_INLIST_CONTAINER_GET(*it, Ewk_Tiled_Backing_Store_Item);
*it = eina_inlist_demote(*it, *it);
_ewk_tiled_backing_store_item_move(item, tilePositionX, offsetY);
_ewk_tiled_backing_store_item_fill(priv, item, column, row);
}
offsetY += tileHeight;
}
priv->view.offset.base.x = offsetX;
}
/**
* @internal
* Move right-most (last) column left as first (left-most).
*
* The final result is visually the same, but logically the last column that
* went out of screen is now at first and filled with new model items.
*
* This is worth just when @a count is smaller than @c
* priv->view.columns, after that one is refilling the whole matrix so it
* is better to trigger full refill.
*
* @param count the number of times to repeat the process.
*/
static void _ewk_tiled_backing_store_view_wrap_right(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y, unsigned long count)
{
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
Evas_Coord offsetX = priv->view.offset.base.x - count * tileWidth;
Evas_Coord tilePositionY = y + priv->view.offset.base.y;
unsigned long baseColumn = count - 1;
Evas_Coord originX = x + baseColumn * tileWidth + offsetX;
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
priv->model.base.column -= count;
for (unsigned long row = 0; it < end; ++it, ++row) {
Evas_Coord tilePositionX = originX;
unsigned long column = baseColumn;
for (unsigned long i = 0; i < count; ++i, --column, tilePositionX -= tileWidth) {
Ewk_Tiled_Backing_Store_Item* item = EINA_INLIST_CONTAINER_GET((*it)->last, Ewk_Tiled_Backing_Store_Item);
*it = eina_inlist_promote(*it, (*it)->last);
_ewk_tiled_backing_store_item_move(item, tilePositionX, tilePositionY);
_ewk_tiled_backing_store_item_fill(priv, item, column, row);
}
tilePositionY += tileHeight;
}
priv->view.offset.base.x = offsetX;
}
static void _ewk_tiled_backing_store_view_refill(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y, int stepX, int stepY)
{
evas_object_move(priv->base.clipper, x, y);
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
Evas_Coord baseTilePositionX = x + priv->view.offset.base.x;
Evas_Coord tilePositionY = y + priv->view.offset.base.y;
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
priv->model.base.column -= stepX;
priv->model.base.row -= stepY;
for (unsigned long row = 0; it < end; ++it, ++row) {
Ewk_Tiled_Backing_Store_Item* item;
Evas_Coord newTilePositionX = baseTilePositionX;
unsigned long column = 0;
EINA_INLIST_FOREACH(*it, item) {
_ewk_tiled_backing_store_item_fill(priv, item, column, row);
_ewk_tiled_backing_store_item_move(item, newTilePositionX, tilePositionY);
++column;
newTilePositionX += tileWidth;
}
tilePositionY += tileHeight;
}
}
static void _ewk_tiled_backing_store_view_pos_apply(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y)
{
evas_object_move(priv->base.clipper, x, y);
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
Evas_Coord baseTilePositionX = x + priv->view.offset.base.x;
Evas_Coord baseTilePositionY = y + priv->view.offset.base.y;
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
for (; it < end; ++it) {
Ewk_Tiled_Backing_Store_Item* item;
Evas_Coord offsetX = baseTilePositionX;
EINA_INLIST_FOREACH(*it, item) {
_ewk_tiled_backing_store_item_move(item, offsetX, baseTilePositionY);
offsetX += tileWidth;
}
baseTilePositionY += tileHeight;
}
}
static void _ewk_tiled_backing_store_smart_calculate_offset_force(Ewk_Tiled_Backing_Store_Data* priv)
{
Evas_Coord deltaX = priv->view.offset.current.x - priv->view.offset.old.x;
Evas_Coord deltaY = priv->view.offset.current.y - priv->view.offset.old.y;
INFO("ewkBackingStore=%p, offset: %+4d, %+4d (%+4d, %+4d)",
priv->self, deltaX, deltaY, priv->view.offset.current.x, priv->view.offset.current.y);
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
unsigned long newColumn = -priv->view.offset.current.x / tileWidth;
int stepX = priv->model.base.column - newColumn;
unsigned long newRow = -priv->view.offset.current.y / tileHeight;
int stepY = priv->model.base.row - newRow;
priv->view.offset.old.x = priv->view.offset.current.x;
priv->view.offset.old.y = priv->view.offset.current.y;
evas_object_move(priv->contentsClipper, priv->view.offset.current.x + priv->view.x, priv->view.offset.current.y + priv->view.y);
priv->view.offset.base.x += deltaX - stepX * tileWidth;
priv->view.offset.base.y += deltaY - stepY * tileHeight;
_ewk_tiled_backing_store_view_refill(priv, priv->view.x, priv->view.y, stepX, stepY);
}
static void _ewk_tiled_backing_store_smart_calculate_offset(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y)
{
Evas_Coord deltaX = priv->view.offset.current.x - priv->view.offset.old.x;
Evas_Coord deltaY = priv->view.offset.current.y - priv->view.offset.old.y;
INFO("ewkBackingStore=%p, offset: %+4d, %+4d (%+4d, %+4d)", priv->self, deltaX, deltaY, priv->view.offset.current.x, priv->view.offset.current.y);
if (!deltaX && !deltaY)
return;
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
long newCol = -priv->view.offset.current.x / tileWidth;
long stepX = priv->model.base.column - newCol;
long newRow = -priv->view.offset.current.y / tileHeight;
long stepY = priv->model.base.row - newRow;
priv->view.offset.old.x = priv->view.offset.current.x;
priv->view.offset.old.y = priv->view.offset.current.y;
evas_object_move(priv->contentsClipper, priv->view.offset.current.x + priv->view.x, priv->view.offset.current.y + priv->view.y);
if ((stepX < 0 && stepX <= -static_cast<long>(priv->view.columns))
|| (stepX > 0 && stepX >= static_cast<long>(priv->view.columns))
|| (stepY < 0 && stepY <= -static_cast<long>(priv->view.rows))
|| (stepY > 0 && stepY >= static_cast<long>(priv->view.rows))) {
priv->view.offset.base.x += deltaX - stepX * tileWidth;
priv->view.offset.base.y += deltaY - stepY * tileHeight;
_ewk_tiled_backing_store_view_refill(priv, priv->view.x, priv->view.y, stepX, stepY);
return;
}
priv->view.offset.base.x += deltaX;
priv->view.offset.base.y += deltaY;
if (stepY < 0)
_ewk_tiled_backing_store_view_wrap_up(priv, x, y, -stepY);
else if (stepY > 0)
_ewk_tiled_backing_store_view_wrap_down(priv, x, y, stepY);
if (stepX < 0)
_ewk_tiled_backing_store_view_wrap_left(priv, x, y, -stepX);
else if (stepX > 0)
_ewk_tiled_backing_store_view_wrap_right(priv, x, y, stepX);
_ewk_tiled_backing_store_view_pos_apply(priv, x, y);
}
static void _ewk_tiled_backing_store_smart_calculate_pos(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y)
{
_ewk_tiled_backing_store_view_pos_apply(priv, x, y);
priv->view.x = x;
priv->view.y = y;
evas_object_move(priv->contentsClipper, priv->view.offset.current.x + priv->view.x, priv->view.offset.current.y + priv->view.y);
}
static void _ewk_tiled_backing_store_fill_renderers(Ewk_Tiled_Backing_Store_Data* priv)
{
for (unsigned long i = 0; i < priv->view.rows; ++i) {
Eina_Inlist* list = priv->view.items[i];
unsigned long j = 0;
Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(list, item)
_ewk_tiled_backing_store_item_fill(priv, item, j++, i);
}
}
static void _ewk_tiled_backing_store_smart_calculate(Evas_Object* ewkBackingStore)
{
Evas_Coord x, y, width, height;
evas_object_geometry_get(ewkBackingStore, &x, &y, &width, &height);
DBG("ewkBackingStore=%p at %d,%d + %dx%d", ewkBackingStore, x, y, width, height);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->changed.any = false;
ewk_tile_matrix_freeze(priv->model.matrix);
if (priv->changed.contentsSize)
ewk_tile_matrix_invalidate(priv->model.matrix);
if (!priv->render.suspend && (priv->changed.model || priv->changed.contentsSize)) {
unsigned long columns = priv->model.width / priv->view.tile.width + 1;
unsigned long rows = priv->model.height / priv->view.tile.height + 1;
priv->model.old.columns = priv->model.current.columns;
priv->model.old.rows = priv->model.current.rows;
priv->model.current.columns = columns;
priv->model.current.rows = rows;
if (priv->model.old.columns > columns)
columns = priv->model.old.columns;
if (priv->model.old.rows > rows)
rows = priv->model.old.rows;
ewk_tile_matrix_resize(priv->model.matrix, columns, rows);
}
if (priv->changed.position && (priv->view.x != x || priv->view.y != y)) {
_ewk_tiled_backing_store_smart_calculate_pos(priv, x, y);
priv->changed.position = false;
}
if (priv->changed.offset) {
_ewk_tiled_backing_store_smart_calculate_offset(priv, x, y);
priv->changed.offset = false;
}
if (priv->changed.size) {
_ewk_tiled_backing_store_smart_calculate_size(priv, width, height);
priv->changed.size = false;
}
if (!priv->render.suspend && (priv->changed.model || priv->changed.contentsSize)) {
_ewk_tiled_backing_store_fill_renderers(priv);
ewk_tile_matrix_resize(priv->model.matrix,
priv->model.current.columns,
priv->model.current.rows);
priv->changed.model = false;
evas_object_resize(priv->contentsClipper, priv->model.width, priv->model.height);
_ewk_tiled_backing_store_smart_calculate_offset_force(priv);
/* Make sure we do not miss any important repaint by
* repainting the whole viewport */
const Eina_Rectangle rect = { 0, 0, priv->model.width, priv->model.height };
ewk_tile_matrix_update(priv->model.matrix, &rect, priv->view.tile.zoom);
priv->changed.contentsSize = false;
}
ewk_tile_matrix_thaw(priv->model.matrix);
_ewk_tiled_backing_store_updates_process(priv);
if (priv->view.offset.base.x > 0
|| priv->view.offset.base.x <= - priv->view.tile.width
|| priv->view.offset.base.y > 0
|| priv->view.offset.base.y <= - priv->view.tile.height) {
ERR("incorrect base offset %+4d,%+4d, tile=%dx%d, current=%+4d,%+4d\n",
priv->view.offset.base.x, priv->view.offset.base.y,
priv->view.tile.width, priv->view.tile.height,
priv->view.offset.current.x, priv->view.offset.current.y);
}
}
Evas_Object* ewk_tiled_backing_store_add(Evas* canvas)
{
static Evas_Smart* smart = 0;
if (!smart) {
static Evas_Smart_Class sc =
EVAS_SMART_CLASS_INIT_NAME_VERSION("Ewk_Tiled_Backing_Store");
evas_object_smart_clipped_smart_set(&sc);
_parent_sc = sc;
sc.add = _ewk_tiled_backing_store_smart_add;
sc.del = _ewk_tiled_backing_store_smart_del;
sc.resize = _ewk_tiled_backing_store_smart_resize;
sc.move = _ewk_tiled_backing_store_smart_move;
sc.show = _ewk_tiled_backing_store_smart_show;
sc.hide = _ewk_tiled_backing_store_smart_hide;
sc.calculate = _ewk_tiled_backing_store_smart_calculate;
sc.member_add = _ewk_tiled_backing_store_smart_member_add;
sc.member_del = _ewk_tiled_backing_store_smart_member_del;
smart = evas_smart_class_new(&sc);
}
return evas_object_smart_add(canvas, smart);
}
void ewk_tiled_backing_store_render_cb_set(Evas_Object* ewkBackingStore, bool (*callback)(void* data, Ewk_Tile* tile, const Eina_Rectangle* area), const void* data)
{
EINA_SAFETY_ON_NULL_RETURN(callback);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->render.callback = callback;
priv->render.data = const_cast<void*>(data);
}
Ewk_Tile_Unused_Cache* ewk_tiled_backing_store_tile_unused_cache_get(const Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, 0);
return ewk_tile_matrix_unused_cache_get(priv->model.matrix);
}
void ewk_tiled_backing_store_tile_unused_cache_set(Evas_Object* ewkBackingStore, Ewk_Tile_Unused_Cache* tileUnusedCache)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
if (ewk_tile_matrix_unused_cache_get(priv->model.matrix) == tileUnusedCache)
return;
_ewk_tiled_backing_store_model_matrix_create(priv, tileUnusedCache);
}
static bool _ewk_tiled_backing_store_scroll_full_offset_set_internal(Ewk_Tiled_Backing_Store_Data* priv, Evas_Coord x, Evas_Coord y)
{
/* TODO: check offset go out of bounds, clamp */
if (priv->render.disabled)
return false;
priv->view.offset.current.x = x;
priv->view.offset.current.y = y;
priv->changed.offset = true;
_ewk_tiled_backing_store_changed(priv);
return true;
}
bool ewk_tiled_backing_store_scroll_full_offset_set(Evas_Object* ewkBackingStore, Evas_Coord x, Evas_Coord y)
{
DBG("ewkBackingStore=%p, x=%d, y=%d", ewkBackingStore, x, y);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
if (x == priv->view.offset.current.x && y == priv->view.offset.current.y)
return true;
return _ewk_tiled_backing_store_scroll_full_offset_set_internal(priv, x, y);
}
bool ewk_tiled_backing_store_scroll_full_offset_add(Evas_Object* ewkBackingStore, Evas_Coord deltaX, Evas_Coord deltaY)
{
DBG("ewkBackingStore=%p, deltaX=%d, deltaY=%d", ewkBackingStore, deltaX, deltaY);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
if (!deltaX && !deltaY)
return true;
return _ewk_tiled_backing_store_scroll_full_offset_set_internal(priv, priv->view.offset.current.x + deltaX, priv->view.offset.current.y + deltaY);
}
static bool _ewk_tiled_backing_store_zoom_set_internal(Ewk_Tiled_Backing_Store_Data* priv, float* zoom, Evas_Coord currentX, Evas_Coord currentY, Evas_Coord* offsetX, Evas_Coord* offsetY)
{
*offsetX = priv->view.offset.current.x;
*offsetY = priv->view.offset.current.y;
if (fabsf(priv->view.tile.zoom - *zoom) < zoomStepMinimum) {
DBG("ignored as zoom difference is < %f: %f",
(double)zoomStepMinimum, fabsf(priv->view.tile.zoom - *zoom));
return true;
}
_ewk_tiled_backing_store_pre_render_request_flush(priv);
*zoom = ROUNDED_ZOOM(priv->view.tile.width, *zoom);
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
float scale = *zoom / priv->view.tile.zoom;
priv->view.tile.zoom = *zoom;
// todo: check currentX [0, w]...
priv->view.offset.zoomCenter.x = currentX;
priv->view.offset.zoomCenter.y = currentY;
unsigned long columns, rows;
ewk_tile_matrix_size_get(priv->model.matrix, &columns, &rows);
if (!ewk_tile_matrix_zoom_level_set(priv->model.matrix, *zoom))
ewk_tile_matrix_entry_new(priv->model.matrix, *zoom);
ewk_tile_matrix_resize(priv->model.matrix, columns, rows);
if (!priv->view.width || !priv->view.height) {
priv->view.offset.base.x = 0;
priv->view.offset.base.y = 0;
return true;
}
Evas_Coord newX = currentX + (priv->view.offset.current.x - currentX) * scale;
Evas_Coord newY = currentY + (priv->view.offset.current.y - currentY) * scale;
Evas_Coord modelWidth = priv->model.width * scale;
Evas_Coord modelHeight = priv->model.height * scale;
if (modelWidth < priv->view.width || newX >= 0)
newX = 0;
else if (-newX + priv->view.width >= modelWidth)
newX = -modelWidth + priv->view.width;
if (modelHeight < priv->view.height || newY >= 0)
newY = 0;
else if (-newY + priv->view.height >= modelHeight)
newY = -modelHeight + priv->view.height;
Evas_Coord baseX = newX % tileWidth;
Evas_Coord baseY = newY % tileHeight;
priv->model.base.column = -newX / tileWidth;
priv->model.base.row = -newY / tileHeight;
priv->changed.size = true;
priv->changed.model = true;
_ewk_tiled_backing_store_changed(priv);
priv->view.offset.current.x = newX;
priv->view.offset.current.y = newY;
priv->view.offset.base.x = baseX;
priv->view.offset.base.y = baseY;
priv->view.offset.old.x = priv->view.offset.current.x;
priv->view.offset.old.y = priv->view.offset.current.y;
*offsetX = priv->view.offset.current.x;
*offsetY = priv->view.offset.current.y;
evas_object_move(priv->contentsClipper, newX + priv->view.x, newY + priv->view.y);
_ewk_tiled_backing_store_fill_renderers(priv);
Evas_Coord tilePositionY = priv->view.offset.base.y + priv->view.y;
Evas_Coord baseTilePositionX = priv->view.x + priv->view.offset.base.x;
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
for (; it < end; ++it) {
Evas_Coord tilePositionX = baseTilePositionX;
Eina_Inlist* lst = *it;
Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(lst, item) {
_ewk_tiled_backing_store_item_move(item, tilePositionX, tilePositionY);
_ewk_tiled_backing_store_item_resize(item, tileWidth, tileHeight);
tilePositionX += tileWidth;
}
tilePositionY += tileHeight;
}
return true;
}
bool ewk_tiled_backing_store_zoom_set(Evas_Object* ewkBackingStore, float* zoom, Evas_Coord currentX, Evas_Coord currentY, Evas_Coord* offsetX, Evas_Coord* offsetY)
{
DBG("ewkBackingStore=%p, zoom=%f", ewkBackingStore, *zoom);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
return _ewk_tiled_backing_store_zoom_set_internal(priv, zoom, currentX, currentY, offsetX, offsetY);
}
bool ewk_tiled_backing_store_zoom_weak_set(Evas_Object* ewkBackingStore, float zoom, Evas_Coord currentX, Evas_Coord currentY)
{
DBG("ewkBackingStore=%p, zoom=%f", ewkBackingStore, zoom);
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
if (!priv->view.width || !priv->view.height)
return false;
bool reCalculate = false;
float scale = zoom / priv->view.tile.zoom;
Evas_Coord tileWidth = TILE_SIZE_AT_ZOOM(priv->view.tile.width, scale);
scale = TILE_ZOOM_AT_SIZE(tileWidth, priv->view.tile.width);
Evas_Coord tileHeight = TILE_SIZE_AT_ZOOM(priv->view.tile.height, scale);
zoom = scale * priv->view.tile.zoom;
Evas_Coord modelWidth = priv->model.width * scale;
Evas_Coord modelHeight = priv->model.height * scale;
evas_object_resize(priv->contentsClipper, modelWidth, modelHeight);
unsigned long vrows = static_cast<unsigned long>(ceil(priv->view.height /static_cast<float>(tileHeight)) + 1);
unsigned long vcols = static_cast<unsigned long>(ceil(priv->view.width / static_cast<float>(tileWidth)) + 1);
Evas_Coord newX = currentX + (priv->view.offset.current.x - currentX) * scale;
Evas_Coord newY = currentY + (priv->view.offset.current.y - currentY) * scale;
Evas_Coord baseX = newX % tileWidth;
Evas_Coord baseY = newY % tileHeight;
unsigned long baseRow = -newY / tileHeight;
unsigned long baseColumn = -newX / tileWidth;
if (baseRow != priv->model.base.row || baseColumn != priv->model.base.column) {
priv->model.base.row = baseRow;
priv->model.base.column = baseColumn;
reCalculate = true;
}
if (vrows > priv->view.rows || vcols > priv->view.columns)
reCalculate = true;
if (reCalculate) {
Evas_Coord width, height;
evas_object_geometry_get(ewkBackingStore, 0, 0, &width, &height);
_ewk_tiled_backing_store_recalc_renderers(priv, width, height, tileWidth, tileHeight);
_ewk_tiled_backing_store_fill_renderers(priv);
_ewk_tiled_backing_store_updates_process(priv);
}
Evas_Coord baseTilePositionX = baseX + priv->view.x;
Evas_Coord tilePositionY = baseY + priv->view.y;
evas_object_move(priv->contentsClipper, newX + priv->view.x, newY + priv->view.y);
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
for (; it < end; ++it) {
Evas_Coord tilePositionX = baseTilePositionX;
Eina_Inlist* list = *it;
Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(list, item) {
_ewk_tiled_backing_store_item_move(item, tilePositionX, tilePositionY);
_ewk_tiled_backing_store_item_resize(item, tileWidth, tileHeight);
tilePositionX += tileWidth;
}
tilePositionY += tileHeight;
}
return true;
}
void ewk_tiled_backing_store_fix_offsets(Evas_Object* ewkBackingStore, Evas_Coord width, Evas_Coord height)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
Evas_Coord newX = priv->view.offset.current.x;
Evas_Coord newY = priv->view.offset.current.y;
Evas_Coord baseX = priv->view.offset.base.x;
Evas_Coord baseY = priv->view.offset.base.y;
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
if (-newX > width) {
newX = -width;
baseX = newX % tileWidth;
priv->model.base.column = -newX / tileWidth;
}
if (-newY > height) {
newY = -height;
baseY = newY % tileHeight;
priv->model.base.row = -newY / tileHeight;
}
if (baseX >= 0 || baseX <= -2 * priv->view.tile.width) {
baseX = newX % tileWidth;
priv->model.base.column = -newX / tileWidth;
}
if (baseY >= 0 || baseY <= -2 * priv->view.tile.height) {
baseY = newY % tileHeight;
priv->model.base.row = -newY / tileHeight;
}
priv->view.offset.current.x = newX;
priv->view.offset.current.y = newY;
priv->view.offset.old.x = newX;
priv->view.offset.old.y = newY;
priv->view.offset.base.x = baseX;
priv->view.offset.base.y = baseY;
evas_object_move(priv->contentsClipper, newX + priv->view.x, newY + priv->view.y);
Evas_Coord tilePositionY = priv->view.offset.base.y + priv->view.y;
Evas_Coord baseTilePositionX = priv->view.x + priv->view.offset.base.x;
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
for (; it < end; ++it) {
Evas_Coord tilePositionX = baseTilePositionX;
Eina_Inlist* lst = *it;
Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(lst, item) {
_ewk_tiled_backing_store_item_move(item, tilePositionX, tilePositionY);
_ewk_tiled_backing_store_item_resize(item, tileWidth, tileHeight);
tilePositionX += tileWidth;
}
tilePositionY += tileHeight;
}
}
void ewk_tiled_backing_store_zoom_weak_smooth_scale_set(Evas_Object* ewkBackingStore, bool smoothScale)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
Eina_Inlist** it = priv->view.items;
Eina_Inlist** end = it + priv->view.rows;
priv->view.tile.zoomWeakSmoothScale = smoothScale;
for (; it< end; ++it) {
Ewk_Tiled_Backing_Store_Item* item;
EINA_INLIST_FOREACH(*it, item)
if (item->tile)
_ewk_tiled_backing_store_item_smooth_scale_set(item, smoothScale);
}
}
void ewk_tiled_backing_store_alpha_set(Evas_Object* ewkBackingStore, bool hasAlpha)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->view.tile.hasAlpha = hasAlpha;
}
bool ewk_tiled_backing_store_update(Evas_Object* ewkBackingStore, const Eina_Rectangle* update)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
if (priv->render.disabled)
return false;
return ewk_tile_matrix_update(priv->model.matrix, update, priv->view.tile.zoom);
}
void ewk_tiled_backing_store_updates_process_pre_set(Evas_Object* ewkBackingStore, void* (*callback)(void* data, Evas_Object *ewkBackingStore), const void* data)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->process.preCallback = callback;
priv->process.preData = const_cast<void*>(data);
}
void ewk_tiled_backing_store_updates_process_post_set(Evas_Object* ewkBackingStore, void* (*callback)(void* data, void* preData, Evas_Object *ewkBackingStore), const void* data)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->process.postCallback = callback;
priv->process.postData = const_cast<void*>(data);
}
void ewk_tiled_backing_store_updates_process(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
_ewk_tiled_backing_store_updates_process(priv);
}
void ewk_tiled_backing_store_updates_clear(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
ewk_tile_matrix_updates_clear(priv->model.matrix);
}
void ewk_tiled_backing_store_contents_resize(Evas_Object* ewkBackingStore, Evas_Coord width, Evas_Coord height)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
if (width == priv->model.width && height == priv->model.height)
return;
priv->model.width = width;
priv->model.height = height;
priv->changed.contentsSize = true;
DBG("w,h=%d, %d", width, height);
_ewk_tiled_backing_store_changed(priv);
}
void ewk_tiled_backing_store_disabled_update_set(Evas_Object* ewkBackingStore, bool value)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
if (value != priv->render.disabled)
priv->render.disabled = value;
}
void ewk_tiled_backing_store_flush(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
priv->view.offset.current.x = 0;
priv->view.offset.current.y = 0;
priv->view.offset.old.x = 0;
priv->view.offset.old.y = 0;
priv->view.offset.base.x = 0;
priv->view.offset.base.y = 0;
priv->model.base.column = 0;
priv->model.base.row = 0;
priv->model.current.columns = 1;
priv->model.current.rows = 1;
priv->model.old.columns = 0;
priv->model.old.rows = 0;
priv->model.width = 0;
priv->model.height = 0;
priv->changed.size = true;
#ifdef DEBUG_MEM_LEAKS
printf("\nFLUSHED BACKING STORE, STATUS BEFORE DELETING TILE MATRIX:\n");
_ewk_tiled_backing_store_mem_dbg(priv);
#endif
_ewk_tiled_backing_store_pre_render_request_flush(priv);
_ewk_tiled_backing_store_tile_dissociate_all(priv);
Ewk_Tile_Unused_Cache* tileUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
ewk_tile_unused_cache_clear(tileUnusedCache);
#ifdef DEBUG_MEM_LEAKS
printf("\nFLUSHED BACKING STORE, STATUS AFTER RECREATING TILE MATRIX:\n");
_ewk_tiled_backing_store_mem_dbg(priv);
#endif
}
bool ewk_tiled_backing_store_pre_render_tile_add(Evas_Object* ewkBackingStore, unsigned long column, unsigned long row, float zoom)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
if (ewk_tile_matrix_tile_exact_exists(priv->model.matrix, column, row, zoom))
return false;
if (!_ewk_tiled_backing_store_pre_render_request_add(priv, column, row, zoom))
return false;
return true;
}
bool ewk_tiled_backing_store_pre_render_spiral_queue(Evas_Object* ewkBackingStore, Eina_Rectangle* viewRect, Eina_Rectangle* renderRect, int maxMemory, float zoom)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
EINA_SAFETY_ON_NULL_RETURN_VAL(viewRect, false);
EINA_SAFETY_ON_NULL_RETURN_VAL(renderRect, false);
const int tileWidth = priv->view.tile.width;
const int tileHeight = priv->view.tile.height;
Eina_Tile_Grid_Slicer viewSlicer;
if (!eina_tile_grid_slicer_setup(&viewSlicer, viewRect->x, viewRect->y, viewRect->w, viewRect->h, tileWidth, tileHeight)) {
ERR("could not setup grid viewSlicer for %d,%d+%dx%d tile=%dx%d", viewRect->x, viewRect->y, viewRect->w, viewRect->h, tileWidth, tileHeight);
return false;
}
Eina_Tile_Grid_Slicer renderSlicer;
if (!eina_tile_grid_slicer_setup(&renderSlicer, renderRect->x, renderRect->y, renderRect->w, renderRect->h, tileWidth, tileHeight)) {
ERR("could not setup grid RenderSlicer for %d,%d+%dx%d tile=%dx%d", renderRect->y, renderRect->y, renderRect->w, renderRect->h, tileWidth, tileHeight);
return false;
}
// set limits of the loop.
int memoryLimits = maxMemory / (EWK_ARGB_BYTES_SIZE * tileWidth * tileHeight);
const unsigned long maxViewSideLength = std::max(viewSlicer.col2 - viewSlicer.col1, viewSlicer.row2 - viewSlicer.row1);
const unsigned long maxRenderSideLength = std::max(renderSlicer.col2 - renderSlicer.col1, renderSlicer.row2 - renderSlicer.row1);
const unsigned long maxLoopCount = maxViewSideLength + maxRenderSideLength;
// spire starts from the center of the view area.
unsigned long centerColumn = (viewSlicer.col1 + viewSlicer.col2) / 2;
unsigned long centerRow = (viewSlicer.row1 + viewSlicer.row2) / 2;
unsigned long step = 1;
const unsigned squareSide = 4;
for (unsigned loop = 0; loop < maxLoopCount; ++loop) {
for (unsigned long i = 1; i < step * squareSide + 1; ++i) {
if (memoryLimits <= 0)
goto memoryLimitsReached;
/*
this code means the loop runs like spiral. (i.g. left->down->right->up)
when it moves back to original place and then walk 1 tile left and up.
the loop keeps on doing this until it reaches max memory to draw tiles.
e.g. )
333333
322223
321123
321123
322223
333333
*/
if (i > 0 && i <= step)
++centerColumn; // move left.
else if (i > step && i <= step * 2)
++centerRow; // move down.
else if (i > step * 2 && i <= step * 3)
--centerColumn; // move right.
else if (i > step * 3 && i <= step * 4)
--centerRow; // move up.
else
ERR("ERROR : out of bounds\r\n");
// skip in view port area.
if (viewSlicer.col1 < centerColumn
&& viewSlicer.col2 > centerColumn
&& viewSlicer.row1 < centerRow
&& viewSlicer.row2 > centerRow)
continue;
if (renderSlicer.col1 <= centerColumn
&& renderSlicer.col2 >= centerColumn
&& renderSlicer.row1 <= centerRow
&& renderSlicer.row2 >= centerRow) {
if (!ewk_tiled_backing_store_pre_render_tile_add(ewkBackingStore, centerColumn, centerRow, zoom))
continue;
DBG("R>[%lu %lu] ", centerColumn, centerRow);
--memoryLimits;
}
}
--centerRow;
--centerColumn;
step += 2;
}
memoryLimitsReached:
_ewk_tiled_backing_store_item_process_idler_start(priv);
return true;
}
bool ewk_tiled_backing_store_pre_render_region(Evas_Object* ewkBackingStore, Evas_Coord x, Evas_Coord y, Evas_Coord width, Evas_Coord height, float zoom)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
Evas_Coord tileWidth = priv->view.tile.width;
Evas_Coord tileHeight = priv->view.tile.height;
zoom = ROUNDED_ZOOM(priv->view.tile.width, zoom);
Eina_Tile_Grid_Slicer slicer;
if (!eina_tile_grid_slicer_setup(&slicer, x, y, width, height, tileWidth, tileHeight)) {
ERR("could not setup grid slicer for %d,%d+%dx%d tile=%dx%d",
x, y, width, height, tileWidth, tileHeight);
return false;
}
const Eina_Tile_Grid_Info* gridInfo;
while (eina_tile_grid_slicer_next(&slicer, &gridInfo)) {
const unsigned long column = gridInfo->col;
const unsigned long row = gridInfo->row;
if (!_ewk_tiled_backing_store_pre_render_request_add(priv, column, row, zoom))
break;
}
_ewk_tiled_backing_store_item_process_idler_start(priv);
Ewk_Tile_Unused_Cache* tileUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
ewk_tile_unused_cache_lock_area(tileUnusedCache, x, y, width, height, zoom);
return true;
}
bool ewk_tiled_backing_store_pre_render_relative_radius(Evas_Object* ewkBackingStore, unsigned int n, float zoom)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
INFO("priv->model.base.row =%ld, n=%u priv->view.rows=%lu", priv->model.base.row, n, priv->view.rows);
unsigned long startRow = priv->model.base.row - n;
unsigned long startCol = priv->model.base.column - n;
unsigned long endRow = std::min(priv->model.current.rows - 1, priv->model.base.row + priv->view.rows + n - 1);
unsigned long endCol = std::min(priv->model.current.columns - 1, priv->model.base.column + priv->view.columns + n - 1);
INFO("startRow=%lu, endRow=%lu, startCol=%lu, endCol=%lu", startRow, endRow, startCol, endCol);
zoom = ROUNDED_ZOOM(priv->view.tile.width, zoom);
for (unsigned long i = startRow; i <= endRow; ++i)
for (unsigned long j = startCol; j <= endCol; ++j)
if (!_ewk_tiled_backing_store_pre_render_request_add(priv, j, i, zoom))
goto start_processing;
start_processing:
_ewk_tiled_backing_store_item_process_idler_start(priv);
Ewk_Tile_Unused_Cache* tileUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
unsigned long height = (endRow - startRow + 1) * TILE_SIZE_AT_ZOOM(priv->view.tile.height, zoom);
unsigned long width = (endCol - startCol + 1) * TILE_SIZE_AT_ZOOM(priv->view.tile.width, zoom);
ewk_tile_unused_cache_lock_area(tileUnusedCache,
startCol * TILE_SIZE_AT_ZOOM(priv->view.tile.width, zoom),
startRow * TILE_SIZE_AT_ZOOM(priv->view.tile.height, zoom), width, height, zoom);
return true;
}
void ewk_tiled_backing_store_pre_render_cancel(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv);
_ewk_tiled_backing_store_pre_render_request_clear(priv);
Ewk_Tile_Unused_Cache* tileUnusedCache = ewk_tile_matrix_unused_cache_get(priv->model.matrix);
ewk_tile_unused_cache_unlock_area(tileUnusedCache);
}
bool ewk_tiled_backing_store_disable_render(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
return _ewk_tiled_backing_store_disable_render(priv);
}
bool ewk_tiled_backing_store_enable_render(Evas_Object* ewkBackingStore)
{
PRIV_DATA_GET_OR_RETURN(ewkBackingStore, priv, false);
_ewk_tiled_backing_store_changed(priv);
return _ewk_tiled_backing_store_enable_render(priv);
}