#include "evas_common_private.h"
#include "region.h"
+
+#ifdef NEWTILER
EAPI void
evas_common_tilebuf_init(void)
{
{
free(rects);
}
+
+#else
+
+#define FUZZ 32
+#define MAXREG 24
+#define MAX_NODES 1024
+
+static inline void rect_list_node_pool_flush(void);
+static inline list_node_t *rect_list_node_pool_get(void);
+static inline void rect_list_node_pool_put(list_node_t *node);
+static inline void rect_init(rect_t *r, int x, int y, int w, int h);
+static inline void rect_list_append_node(list_t *rects, list_node_t *node);
+static inline void rect_list_append(list_t *rects, const rect_t r);
+static inline void rect_list_append_xywh(list_t *rects, int x, int y, int w, int h);
+static inline void rect_list_concat(list_t *rects, list_t *other);
+static inline list_node_t *rect_list_unlink_next(list_t *rects, list_node_t *parent_node);
+static inline void rect_list_del_next(list_t *rects, list_node_t *parent_node);
+static inline void rect_list_clear(list_t *rects);
+static inline void rect_list_del_split_strict(list_t *rects, const rect_t del_r);
+static inline list_node_t *rect_list_add_split_fuzzy(list_t *rects, list_node_t *node, int accepted_error);
+static inline void rect_list_merge_rects(list_t *rects, list_t *to_merge, int accepted_error);
+static inline void rect_list_add_split_fuzzy_and_merge(list_t *rects, list_node_t *node, int split_accepted_error, int merge_accepted_error);
+
+static const list_node_t list_node_zeroed = { NULL };
+static const list_t list_zeroed = { NULL, NULL };
+
+typedef struct list_node_pool
+{
+ list_node_t *node;
+ int len;
+ int max;
+} list_node_pool_t;
+
+static list_node_pool_t list_node_pool = { NULL, 0, MAX_NODES };
+
+static inline void
+rect_list_node_pool_flush(void)
+{
+ while (list_node_pool.node)
+ {
+ list_node_t *node = list_node_pool.node;
+ list_node_pool.node = node->next;
+ list_node_pool.len--;
+ free(node);
+ }
+}
+
+static inline list_node_t *
+rect_list_node_pool_get(void)
+{
+ if (list_node_pool.node)
+ {
+ list_node_t *node = list_node_pool.node;
+ list_node_pool.node = node->next;
+ list_node_pool.len--;
+ return node;
+ }
+ else return (list_node_t *)malloc(sizeof(rect_node_t));
+}
+
+static inline void
+rect_list_node_pool_put(list_node_t *node)
+{
+ if (list_node_pool.len < list_node_pool.max)
+ {
+ node->next = list_node_pool.node;
+ list_node_pool.node = node;
+ list_node_pool.len++;
+ }
+ else free(node);
+}
+
+static inline void
+rect_init(rect_t *r, int x, int y, int w, int h)
+{
+ r->area = w * h;
+ r->left = x;
+ r->top = y;
+ r->right = x + w;
+ r->bottom = y + h;
+ r->width = w;
+ r->height = h;
+}
+
+static inline void
+rect_list_append_node(list_t *rects, list_node_t *node)
+{
+ if (rects->tail)
+ {
+ rects->tail->next = node;
+ rects->tail = node;
+ }
+ else
+ {
+ rects->head = node;
+ rects->tail = node;
+ }
+}
+
+static inline void
+rect_list_append(list_t *rects, const rect_t r)
+{
+ rect_node_t *rect_node = (rect_node_t *)rect_list_node_pool_get();
+ rect_node->rect = r;
+ rect_node->_lst = list_node_zeroed;
+ rect_list_append_node(rects, (list_node_t *)rect_node);
+}
+
+static inline void
+rect_list_append_xywh(list_t *rects, int x, int y, int w, int h)
+{
+ rect_t r;
+ rect_init(&r, x, y, w, h);
+ rect_list_append(rects, r);
+}
+
+static inline void
+rect_list_concat(list_t *rects, list_t *other)
+{
+ if (!other->head) return;
+ if (rects->tail)
+ {
+ rects->tail->next = other->head;
+ rects->tail = other->tail;
+ }
+ else
+ {
+ rects->head = other->head;
+ rects->tail = other->tail;
+ }
+ *other = list_zeroed;
+}
+
+static inline list_node_t *
+rect_list_unlink_next(list_t *rects, list_node_t *parent_node)
+{
+ list_node_t *node;
+
+ if (parent_node)
+ {
+ node = parent_node->next;
+ parent_node->next = node->next;
+ }
+ else
+ {
+ node = rects->head;
+ rects->head = node->next;
+ }
+ if (rects->tail == node) rects->tail = parent_node;
+ *node = list_node_zeroed;
+ return node;
+}
+
+static inline void
+rect_list_del_next(list_t *rects, list_node_t *parent_node)
+{
+ list_node_t *node = rect_list_unlink_next(rects, parent_node);
+ rect_list_node_pool_put(node);
+}
+
+static inline void
+rect_list_clear(list_t *rects)
+{
+ list_node_t *node = rects->head;
+ while (node)
+ {
+ list_node_t *aux;
+
+ aux = node->next;
+ rect_list_node_pool_put(node);
+ node = aux;
+ }
+ *rects = list_zeroed;
+}
+
+static inline void
+_calc_intra_rect_area(const rect_t a, const rect_t b, int *width, int *height)
+{
+ int max_left, min_right, max_top, min_bottom;
+
+ if (a.left < b.left) max_left = b.left;
+ else max_left = a.left;
+ if (a.right < b.right) min_right = a.right;
+ else min_right = b.right;
+ *width = min_right - max_left;
+
+ if (a.top < b.top) max_top = b.top;
+ else max_top = a.top;
+ if (a.bottom < b.bottom) min_bottom = a.bottom;
+ else min_bottom = b.bottom;
+ *height = min_bottom - max_top;
+}
+
+static inline void
+_split_strict(list_t *dirty, const rect_t current, rect_t r)
+{
+ int h_1, h_2, w_1, w_2;
+
+ h_1 = current.top - r.top;
+ h_2 = r.bottom - current.bottom;
+ w_1 = current.left - r.left;
+ w_2 = r.right - current.right;
+ if (h_1 > 0)
+ {
+ /* .--.r (b) .---.r2
+ * | | | |
+ * .-------.cur (a) .---.r '---'
+ * | | | | -> | | +
+ * | `--' | `---'
+ * `-------'
+ */
+ rect_list_append_xywh(dirty, r.left, r.top, r.width, h_1);
+ r.height -= h_1;
+ r.top = current.top;
+ }
+ if (h_2 > 0)
+ {
+ /* .-------.cur (a)
+ * | .---. | .---.r
+ * | | | | -> | |
+ * `-------' `---' + .---.r2
+ * | | | |
+ * `---'r (b) `---'
+ */
+ rect_list_append_xywh(dirty, r.left, current.bottom, r.width, h_2);
+ r.height -= h_2;
+ }
+ if (w_1 > 0)
+ {
+ /* (b) r .----.cur (a)
+ * .--|-. | .--.r2 .-.r
+ * | | | | -> | | + | |
+ * `--|-' | `--' `-'
+ * `----'
+ */
+ rect_list_append_xywh(dirty, r.left, r.top, w_1, r.height);
+ /* not necessary to keep these, r (b) will be destroyed */
+ /* r.width -= w_1; */
+ /* r.left = current.left; */
+ }
+ if (w_2 > 0)
+ {
+ /* .----.cur (a)
+ * | |
+ * | .-|--.r (b) .-.r .--.r2
+ * | | | | -> | | + | |
+ * | `-|--' `-' `--'
+ * `----'
+ */
+ rect_list_append_xywh(dirty, current.right, r.top, w_2, r.height);
+ /* not necessary to keep this, r (b) will be destroyed */
+ /* r.width -= w_2; */
+ }
+}
+
+static inline void
+rect_list_del_split_strict(list_t *rects, const rect_t del_r)
+{
+ list_t modified = list_zeroed;
+ list_node_t *cur_node, *prev_node;
+ int intra_width, intra_height;
+ rect_t current;
+
+ prev_node = NULL;
+ cur_node = rects->head;
+ while (cur_node)
+ {
+ current = ((rect_node_t*)cur_node)->rect;
+ _calc_intra_rect_area(del_r, current, &intra_width, &intra_height);
+ if ((intra_width <= 0) || (intra_height <= 0))
+ {
+ /* .---.current .---.del_r
+ * | | | |
+ * `---+---.del_r `---+---.current
+ * | | | |
+ * `---' `---'
+ * no interception, nothing to do
+ */
+ prev_node = cur_node;
+ cur_node = cur_node->next;
+ }
+ else if ((intra_width == current.width) &&
+ (intra_height == current.height))
+ {
+ /* .-------.del_r
+ * | .---. |
+ * | | | |
+ * | `---'current
+ * `-------'
+ * current is contained, remove from rects
+ */
+ cur_node = cur_node->next;
+ rect_list_del_next(rects, prev_node);
+ }
+ else
+ {
+ _split_strict(&modified, del_r, current);
+ cur_node = cur_node->next;
+ rect_list_del_next(rects, prev_node);
+ }
+ }
+
+ rect_list_concat(rects, &modified);
+}
+
+static inline void
+_calc_intra_outer_rect_area(const rect_t a, const rect_t b,
+ rect_t *intra, rect_t *outer)
+{
+ int min_left, max_left, min_right, max_right;
+ int min_top, max_top, min_bottom, max_bottom;
+
+ if (a.left < b.left)
+ {
+ max_left = b.left;
+ min_left = a.left;
+ }
+ else
+ {
+ max_left = a.left;
+ min_left = b.left;
+ }
+ if (a.right < b.right)
+ {
+ min_right = a.right;
+ max_right = b.right;
+ }
+ else
+ {
+ min_right = b.right;
+ max_right = a.right;
+ }
+ intra->left = max_left;
+ intra->right = min_right;
+ intra->width = min_right - max_left;
+ outer->left = min_left;
+ outer->right = max_right;
+ outer->width = max_right - min_left;
+ if (a.top < b.top)
+ {
+ max_top = b.top;
+ min_top = a.top;
+ }
+ else
+ {
+ max_top = a.top;
+ min_top = b.top;
+ }
+ if (a.bottom < b.bottom)
+ {
+ min_bottom = a.bottom;
+ max_bottom = b.bottom;
+ }
+ else
+ {
+ min_bottom = b.bottom;
+ max_bottom = a.bottom;
+ }
+ intra->top = max_top;
+ intra->bottom = min_bottom;
+ intra->height = min_bottom - max_top;
+ if ((intra->width > 0) && (intra->height > 0))
+ intra->area = intra->width * intra->height;
+ else
+ intra->area = 0;
+ outer->top = min_top;
+ outer->bottom = max_bottom;
+ outer->height = max_bottom - min_top;
+ outer->area = outer->width * outer->height;
+}
+
+enum
+{
+ SPLIT_FUZZY_ACTION_NONE,
+ SPLIT_FUZZY_ACTION_SPLIT,
+ SPLIT_FUZZY_ACTION_MERGE
+};
+
+static inline int
+_split_fuzzy(list_t *dirty, const rect_t a, rect_t *b)
+{
+ int h_1, h_2, w_1, w_2, action;
+
+ h_1 = a.top - b->top;
+ h_2 = b->bottom - a.bottom;
+ w_1 = a.left - b->left;
+ w_2 = b->right - a.right;
+
+ action = SPLIT_FUZZY_ACTION_NONE;
+ if (h_1 > 0)
+ {
+ /* .--.r (b) .---.r2
+ * | | | |
+ * .-------.cur (a) .---.r '---'
+ * | | | | -> | | +
+ * | `--' | `---'
+ * `-------'
+ */
+ rect_list_append_xywh(dirty, b->left, b->top, b->width, h_1);
+ b->height -= h_1;
+ b->top = a.top;
+ action = SPLIT_FUZZY_ACTION_SPLIT;
+ }
+ if (h_2 > 0)
+ {
+ /* .-------.cur (a)
+ * | .---. | .---.r
+ * | | | | -> | |
+ * `-------' `---' + .---.r2
+ * | | | |
+ * `---'r (b) `---'
+ */
+ rect_list_append_xywh(dirty, b->left, a.bottom, b->width, h_2);
+ b->height -= h_2;
+ action = SPLIT_FUZZY_ACTION_SPLIT;
+ }
+ if (((w_1 > 0) || (w_2 > 0)) && (a.height == b->height))
+ return SPLIT_FUZZY_ACTION_MERGE;
+ if (w_1 > 0)
+ {
+ /* (b) r .----.cur (a)
+ * .--|-. | .--.r2 .-.r
+ * | | | | -> | | + | |
+ * `--|-' | `--' `-'
+ * `----'
+ */
+ rect_list_append_xywh(dirty, b->left, b->top, w_1, b->height);
+ /* not necessary to keep these, r (b) will be destroyed */
+ /* b->width -= w_1; */
+ /* b->left = a.left; */
+ action = SPLIT_FUZZY_ACTION_SPLIT;
+ }
+ if (w_2 > 0)
+ {
+ /* .----.cur (a)
+ * | |
+ * | .-|--.r (b) .-.r .--.r2
+ * | | | | -> | | + | |
+ * | `-|--' `-' `--'
+ * `----'
+ */
+ rect_list_append_xywh(dirty, a.right, b->top, w_2, b->height);
+ /* not necessary to keep these, r (b) will be destroyed */
+ /* b->width -= w_2; */
+ action = SPLIT_FUZZY_ACTION_SPLIT;
+ }
+ return action;
+}
+
+static inline list_node_t *
+rect_list_add_split_fuzzy(list_t *rects, list_node_t *node, int accepted_error)
+{
+ list_t dirty = list_zeroed;
+ list_node_t *old_last = rects->tail;
+
+ if (!rects->head)
+ {
+ rect_list_append_node(rects, node);
+ return old_last;
+ }
+ rect_list_append_node(&dirty, node);
+ while (dirty.head)
+ {
+ list_node_t *d_node, *cur_node, *prev_cur_node;
+ int keep_dirty;
+ rect_t r;
+
+ d_node = rect_list_unlink_next(&dirty, NULL);
+ r = ((rect_node_t *)d_node)->rect;
+ prev_cur_node = NULL;
+ cur_node = rects->head;
+ keep_dirty = 1;
+ while (cur_node)
+ {
+ int area, action;
+ rect_t current, intra, outer;
+
+ current = ((rect_node_t *)cur_node)->rect;
+ _calc_intra_outer_rect_area(r, current, &intra, &outer);
+ area = current.area + r.area - intra.area;
+ if ((intra.width == r.width) && (intra.height == r.height))
+ {
+ /* .-------.cur
+ * | .---.r|
+ * | | | |
+ * | `---' |
+ * `-------'
+ */
+ keep_dirty = 0;
+ break;
+ }
+ else if ((intra.width == current.width) &&
+ (intra.height == current.height))
+ {
+ /* .-------.r
+ * | .---.cur
+ * | | | |
+ * | `---' |
+ * `-------'
+ */
+ if (old_last == cur_node)
+ old_last = prev_cur_node;
+ cur_node = cur_node->next;
+ rect_list_del_next(rects, prev_cur_node);
+ }
+ else if ((outer.area - area) <= accepted_error)
+ {
+ /* .-----------. bounding box (outer)
+ * |.---. .---.|
+ * ||cur| |r ||
+ * || | | ||
+ * |`---' `---'|
+ * `-----------'
+ * merge them, remove both and add merged
+ */
+ rect_node_t *n;
+
+ if (old_last == cur_node)
+ old_last = prev_cur_node;
+
+ n = (rect_node_t *)rect_list_unlink_next(rects, prev_cur_node);
+ n->rect = outer;
+ rect_list_append_node(&dirty, (list_node_t *)n);
+
+ keep_dirty = 0;
+ break;
+ }
+ else if ((intra.area - area) <= accepted_error)
+ {
+ /* .---.cur .---.r
+ * | | | |
+ * `---+---.r `---+---.cur
+ * | | | |
+ * `---' `---'
+ * no split, no merge
+ */
+ prev_cur_node = cur_node;
+ cur_node = cur_node->next;
+ }
+ else
+ {
+ /* split is required */
+ action = _split_fuzzy(&dirty, current, &r);
+ if (action == SPLIT_FUZZY_ACTION_MERGE)
+ {
+ /* horizontal merge is possible: remove both, add merged */
+ rect_node_t *n;
+
+ if (old_last == cur_node)
+ old_last = prev_cur_node;
+
+ n = (rect_node_t *)
+ rect_list_unlink_next(rects, prev_cur_node);
+
+ n->rect.left = outer.left;
+ n->rect.width = outer.width;
+ n->rect.right = outer.right;
+ n->rect.area = outer.width * r.height;
+ rect_list_append_node(&dirty, (list_node_t *)n);
+ }
+ else if (action == SPLIT_FUZZY_ACTION_NONE)
+ {
+ /* this rect check was totally useless,
+ * should never happen */
+ /* prev_cur_node = cur_node; */
+ /* cur_node = cur_node->next; */
+ WRN("Should not get here!");
+ abort();
+ }
+ keep_dirty = 0;
+ break;
+ }
+ }
+ if (UNLIKELY(keep_dirty)) rect_list_append_node(rects, d_node);
+ else rect_list_node_pool_put(d_node);
+ }
+ return old_last;
+}
+
+static inline void
+_calc_outer_rect_area(const rect_t a, const rect_t b, rect_t *outer)
+{
+ int min_left, max_right;
+ int min_top, max_bottom;
+
+ if (a.left < b.left) min_left = a.left;
+ else min_left = b.left;
+ if (a.right < b.right) max_right = b.right;
+ else max_right = a.right;
+ outer->left = min_left;
+ outer->right = max_right;
+ outer->width = max_right - min_left;
+ if (a.top < b.top) min_top = a.top;
+ else min_top = b.top;
+ if (a.bottom < b.bottom) max_bottom = b.bottom;
+ else max_bottom = a.bottom;
+ outer->top = min_top;
+ outer->bottom = max_bottom;
+ outer->height = max_bottom - min_top;
+ outer->area = outer->width * outer->height;
+}
+
+static inline void
+rect_list_merge_rects(list_t *rects, list_t *to_merge, int accepted_error)
+{
+ while (to_merge->head)
+ {
+ list_node_t *node, *parent_node;
+ rect_t r1;
+ int merged;
+
+ r1 = ((rect_node_t *)to_merge->head)->rect;
+ merged = 0;
+ parent_node = NULL;
+ node = rects->head;
+ while (node)
+ {
+ rect_t r2, outer;
+ int area;
+
+ r2 = ((rect_node_t *)node)->rect;
+ _calc_outer_rect_area(r1, r2, &outer);
+ area = r1.area + r2.area; /* intra area is taken as 0 */
+ if (outer.area - area <= accepted_error)
+ {
+ /* remove both r1 and r2, create r3
+ * actually r3 uses r2 instance, saves memory */
+ rect_node_t *n;
+
+ n = (rect_node_t *)rect_list_unlink_next(rects, parent_node);
+ n->rect = outer;
+ rect_list_append_node(to_merge, (list_node_t *)n);
+ merged = 1;
+ break;
+ }
+ parent_node = node;
+ node = node->next;
+ }
+ if (!merged)
+ {
+ list_node_t *n;
+ n = rect_list_unlink_next(to_merge, NULL);
+ rect_list_append_node(rects, n);
+ }
+ else
+ rect_list_del_next(to_merge, NULL);
+ }
+}
+
+static inline void
+rect_list_add_split_fuzzy_and_merge(list_t *rects,
+ list_node_t *node,
+ int split_accepted_error,
+ int merge_accepted_error)
+{
+ list_node_t *n;
+
+ n = rect_list_add_split_fuzzy(rects, node, split_accepted_error);
+ if (n && n->next)
+ {
+ list_t to_merge;
+ /* split list into 2 segments, already merged and to merge */
+ to_merge.head = n->next;
+ to_merge.tail = rects->tail;
+ rects->tail = n;
+ n->next = NULL;
+ rect_list_merge_rects(rects, &to_merge, merge_accepted_error);
+ }
+}
+
+static inline int
+_add_redraw(list_t *rects, int x, int y, int w, int h, int fuzz)
+{
+ rect_node_t *rn;
+ rn = (rect_node_t *)rect_list_node_pool_get();
+ rn->_lst = list_node_zeroed;
+ rect_init(&rn->rect, x, y, w, h);
+ rect_list_add_split_fuzzy_and_merge(rects, (list_node_t *)rn, fuzz, fuzz);
+ return 1;
+}
+
+/////////////////////////////////////////////////////////////////
+
+EAPI void
+evas_common_tilebuf_init(void)
+{
+}
+
+EAPI Tilebuf *
+evas_common_tilebuf_new(int w, int h)
+{
+ Tilebuf *tb;
+
+ tb = calloc(1, sizeof(Tilebuf));
+ if (!tb) return NULL;
+ tb->tile_size.w = 8;
+ tb->tile_size.h = 8;
+ tb->outbuf_w = w;
+ tb->outbuf_h = h;
+ return tb;
+}
+
+EAPI void
+evas_common_tilebuf_free(Tilebuf *tb)
+{
+ rect_list_clear(&tb->rects);
+ rect_list_node_pool_flush();
+ free(tb);
+}
+
+EAPI void
+evas_common_tilebuf_set_tile_size(Tilebuf *tb, int tw, int th)
+{
+ tb->tile_size.w = tw;
+ tb->tile_size.h = th;
+}
+
+EAPI void
+evas_common_tilebuf_get_tile_size(Tilebuf *tb, int *tw, int *th)
+{
+ if (tw) *tw = tb->tile_size.w;
+ if (th) *th = tb->tile_size.h;
+}
+
+EAPI void
+evas_common_tilebuf_tile_strict_set(Tilebuf *tb, Eina_Bool strict)
+{
+ tb->strict_tiles = strict;
+}
+
+EAPI int
+evas_common_tilebuf_add_redraw(Tilebuf *tb, int x, int y, int w, int h)
+{
+ if ((w <= 0) || (h <= 0)) return 0;
+ RECTS_CLIP_TO_RECT(x, y, w, h, 0, 0, tb->outbuf_w, tb->outbuf_h);
+ if ((w <= 0) || (h <= 0)) return 0;
+ // optimize a common case -> adding the exact same rect 2x in a row
+ if ((tb->prev_add.x == x) && (tb->prev_add.y == y) &&
+ (tb->prev_add.w == w) && (tb->prev_add.h == h)) return 1;
+ tb->prev_add.x = x; tb->prev_add.y = y;
+ tb->prev_add.w = w; tb->prev_add.h = h;
+ tb->prev_del.w = 0; tb->prev_del.h = 0;
+ return _add_redraw(&tb->rects, x, y, w, h, FUZZ * FUZZ);
+}
+
+EAPI int
+evas_common_tilebuf_del_redraw(Tilebuf *tb, int x, int y, int w, int h)
+{
+ rect_t r;
+
+ if (!tb->rects.head) return 0;
+ if ((w <= 0) || (h <= 0)) return 0;
+ RECTS_CLIP_TO_RECT(x, y, w, h, 0, 0, tb->outbuf_w, tb->outbuf_h);
+ if ((w <= 0) || (h <= 0)) return 0;
+ // optimize a common case -> deleting the exact same rect 2x in a row
+ if ((tb->prev_del.x == x) && (tb->prev_del.y == y) &&
+ (tb->prev_del.w == w) && (tb->prev_del.h == h)) return 1;
+ tb->prev_del.x = x; tb->prev_del.y = y;
+ tb->prev_del.w = w; tb->prev_del.h = h;
+ tb->prev_add.w = 0; tb->prev_add.h = 0;
+ rect_init(&r, x, y, w, h);
+ rect_list_del_split_strict(&tb->rects, r);
+ tb->need_merge = 1;
+ return 0;
+}
+
+EAPI int
+evas_common_tilebuf_add_motion_vector(Tilebuf *tb EINA_UNUSED, int x EINA_UNUSED, int y EINA_UNUSED, int w EINA_UNUSED, int h EINA_UNUSED, int dx EINA_UNUSED, int dy EINA_UNUSED, int alpha EINA_UNUSED)
+{
+ return 0;
+}
+
+EAPI void
+evas_common_tilebuf_clear(Tilebuf *tb)
+{
+ tb->prev_add.x = tb->prev_add.y = tb->prev_add.w = tb->prev_add.h = 0;
+ tb->prev_del.x = tb->prev_del.y = tb->prev_del.w = tb->prev_del.h = 0;
+ rect_list_clear(&tb->rects);
+ tb->need_merge = 0;
+}
+
+EAPI Tilebuf_Rect *
+evas_common_tilebuf_get_render_rects(Tilebuf *tb)
+{
+ list_node_t *n;
+ list_t to_merge;
+ Tilebuf_Rect *rects = NULL, *rbuf, *r;
+ int bx1 = 0, bx2 = 0, by1 = 0, by2 = 0, num = 0, x1, x2, y1, y2, i;
+
+/* don't need this since the below is now always on
+ if (tb->need_merge)
+ {
+ to_merge = tb->rects;
+ tb->rects = list_zeroed;
+ rect_list_merge_rects(&tb->rects, &to_merge, 0);
+ tb->need_merge = 0;
+ }
+ */
+ if (1)
+// always fuzz merge for optimal perf
+// if (!tb->strict_tiles)
+ {
+ // round up rects to tb->tile_size.w and tb->tile_size.h
+ to_merge = list_zeroed;
+ for (n = tb->rects.head; n; n = n->next)
+ {
+ x1 = ((rect_node_t *)n)->rect.left;
+ x2 = x1 + ((rect_node_t *)n)->rect.width;
+ y1 = ((rect_node_t *)n)->rect.top;
+ y2 = y1 + ((rect_node_t *)n)->rect.height;
+ x1 = tb->tile_size.w * (x1 / tb->tile_size.w);
+ y1 = tb->tile_size.h * (y1 / tb->tile_size.h);
+ x2 = tb->tile_size.w * ((x2 + tb->tile_size.w - 1) / tb->tile_size.w);
+ y2 = tb->tile_size.h * ((y2 + tb->tile_size.h - 1) / tb->tile_size.h);
+ _add_redraw(&to_merge, x1, y1, x2 - x1, y2 - y1, 0);
+ }
+ rect_list_clear(&tb->rects);
+ rect_list_merge_rects(&tb->rects, &to_merge, 0);
+ }
+ n = tb->rects.head;
+ if (n)
+ {
+ RECTS_CLIP_TO_RECT(((rect_node_t *)n)->rect.left,
+ ((rect_node_t *)n)->rect.top,
+ ((rect_node_t *)n)->rect.width,
+ ((rect_node_t *)n)->rect.height,
+ 0, 0, tb->outbuf_w, tb->outbuf_h);
+ num = 1;
+ bx1 = ((rect_node_t *)n)->rect.left;
+ bx2 = bx1 + ((rect_node_t *)n)->rect.width;
+ by1 = ((rect_node_t *)n)->rect.top;
+ by2 = by1 + ((rect_node_t *)n)->rect.height;
+ n = n->next;
+ for (; n; n = n->next)
+ {
+ RECTS_CLIP_TO_RECT(((rect_node_t *)n)->rect.left,
+ ((rect_node_t *)n)->rect.top,
+ ((rect_node_t *)n)->rect.width,
+ ((rect_node_t *)n)->rect.height,
+ 0, 0, tb->outbuf_w, tb->outbuf_h);
+ x1 = ((rect_node_t *)n)->rect.left;
+ if (x1 < bx1) bx1 = x1;
+ x2 = x1 + ((rect_node_t *)n)->rect.width;
+ if (x2 > bx2) bx2 = x2;
+
+ y1 = ((rect_node_t *)n)->rect.top;
+ if (y1 < by1) by1 = y1;
+ y2 = y1 + ((rect_node_t *)n)->rect.height;
+ if (y2 > by2) by2 = y2;
+ num++;
+ }
+ }
+ else
+ return NULL;
+
+ /* magic number - if we have > MAXREG regions to update, take bounding */
+ if (num > MAXREG)
+ {
+ r = malloc(sizeof(Tilebuf_Rect));
+ if (r)
+ {
+ EINA_INLIST_GET(r)->next = NULL;
+ EINA_INLIST_GET(r)->prev = NULL;
+ EINA_INLIST_GET(r)->last = NULL;
+ r->x = bx1;
+ r->y = by1;
+ r->w = bx2 - bx1;
+ r->h = by2 - by1;
+ rects = (Tilebuf_Rect *)
+ eina_inlist_append(EINA_INLIST_GET(rects),
+ EINA_INLIST_GET(r));
+ }
+ return rects;
+ }
+
+ rbuf = malloc(sizeof(Tilebuf_Rect) * num);
+ if (!rbuf) return NULL;
+
+ for (i = 0, n = tb->rects.head; n; n = n->next)
+ {
+ rect_t cur;
+
+ cur = ((rect_node_t *)n)->rect;
+ if ((cur.width > 0) && (cur.height > 0))
+ {
+ r = &(rbuf[i]);
+ EINA_INLIST_GET(r)->next = NULL;
+ EINA_INLIST_GET(r)->prev = NULL;
+ EINA_INLIST_GET(r)->last = NULL;
+ r->x = cur.left;
+ r->y = cur.top;
+ r->w = cur.width;
+ r->h = cur.height;
+ rects = (Tilebuf_Rect *)
+ eina_inlist_append(EINA_INLIST_GET(rects),
+ EINA_INLIST_GET(r));
+ i++;
+ }
+ }
+
+ // It is possible that due to the clipping we do not return any rectangle here.
+ if (!rects) free(rbuf);
+
+ return rects;
+}
+
+EAPI void
+evas_common_tilebuf_free_render_rects(Tilebuf_Rect *rects)
+{
+ free(rects);
+}
+#endif