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snapshot: Use one GPtrArray for all nodes

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Instead of creating one GPtrArray per GtkSnapshotState and saving nodes
in there, create one GPtrArray per snapshot and assign a
start_node_index to every GtkSnapshotState as well as a n_nodes variable
so every state knows which nodes belong to it.
This commit is contained in:
Timm Bäder 2017-10-01 14:28:11 +02:00
parent 8e59b3b387
commit f5297e6f4b
2 changed files with 21 additions and 7 deletions
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24
gtk/gtksnapshot.c
View File

@ -90,14 +90,14 @@ gtk_snapshot_push_state (GtkSnapshot *snapshot,
g_array_set_size (snapshot->state_stack, snapshot->state_stack->len + 1);
state = &g_array_index (snapshot->state_stack, GtkSnapshotState, snapshot->state_stack->len - 1);
state->nodes = g_ptr_array_new_with_free_func ((GDestroyNotify) gsk_render_node_unref);
state->name = name;
if (clip)
state->clip_region = cairo_region_reference (clip);
state->translate_x = translate_x;
state->translate_y = translate_y;
state->collect_func = collect_func;
state->start_node_index = snapshot->nodes->len;
state->n_nodes = 0;
return state;
}
@ -121,7 +121,6 @@ gtk_snapshot_get_previous_state (const GtkSnapshot *snapshot)
static void
gtk_snapshot_state_clear (GtkSnapshotState *state)
{
g_ptr_array_unref (state->nodes);
g_clear_pointer (&state->clip_region, cairo_region_destroy);
g_clear_pointer (&state->name, g_free);
}
@ -140,6 +139,7 @@ gtk_snapshot_init (GtkSnapshot *snapshot,
snapshot->renderer = renderer;
snapshot->state_stack = g_array_new (FALSE, TRUE, sizeof (GtkSnapshotState));
g_array_set_clear_func (snapshot->state_stack, (GDestroyNotify)gtk_snapshot_state_clear);
snapshot->nodes = g_ptr_array_new_with_free_func ((GDestroyNotify)gsk_render_node_unref);
if (name && record_names)
{
@ -978,10 +978,19 @@ gtk_snapshot_pop_internal (GtkSnapshot *snapshot)
node = state->collect_func (snapshot,
state,
(GskRenderNode **) state->nodes->pdata,
state->nodes->len,
(GskRenderNode **) snapshot->nodes->pdata + state->start_node_index,
state->n_nodes,
state->name);
/* The collect func may not modify the state stack... */
g_assert (state_index == snapshot->state_stack->len - 1);
/* Remove all the state's nodes from the list of nodes */
g_assert (state->start_node_index + state->n_nodes == snapshot->nodes->len);
g_ptr_array_remove_range (snapshot->nodes,
snapshot->nodes->len - state->n_nodes,
state->n_nodes);
g_array_remove_index (snapshot->state_stack, state_index);
return node;
@ -1009,6 +1018,7 @@ gtk_snapshot_finish (GtkSnapshot *snapshot)
result = gtk_snapshot_pop_internal (snapshot);
g_array_free (snapshot->state_stack, TRUE);
g_ptr_array_free (snapshot->nodes, TRUE);
return result;
}
@ -1118,6 +1128,7 @@ gtk_snapshot_append_node (GtkSnapshot *snapshot,
GskRenderNode *node)
{
GtkSnapshotState *current_state;
g_return_if_fail (snapshot != NULL);
g_return_if_fail (GSK_IS_RENDER_NODE (node));
@ -1125,7 +1136,8 @@ gtk_snapshot_append_node (GtkSnapshot *snapshot,
if (current_state)
{
g_ptr_array_add (current_state->nodes, gsk_render_node_ref (node));
g_ptr_array_add (snapshot->nodes, gsk_render_node_ref (node));
current_state->n_nodes ++;
}
else
{

4
gtk/gtksnapshotprivate.h
View File

@ -32,7 +32,8 @@ typedef GskRenderNode * (* GtkSnapshotCollectFunc) (GtkSnapshot *snapshot,
struct _GtkSnapshotState {
char *name;
GPtrArray *nodes;
guint start_node_index;
guint n_nodes;
cairo_region_t *clip_region;
int translate_x;
@ -83,6 +84,7 @@ struct _GtkSnapshot {
gboolean record_names;
GskRenderer *renderer;
GArray *state_stack;
GPtrArray *nodes;
};
void gtk_snapshot_init (GtkSnapshot *state,