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Batching across z_indices

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Extra functions canvas_render_items_begin and canvas_render_items_end are added to RasterizerCanvas, with noop stubs for non-GLES2 renderers. This enables batching to be spready over multiple z_indices, and multiple calls to canvas_render_items.

It does this by only performing item joining within canvas_render_items, and deferring rendering until canvas_render_items_end().
This commit is contained in:
lawnjelly
2020-04-12 13:52:25 +01:00
parent 1fb6181ba6
commit 93af8e7d1b
4 changed files with 73 additions and 36 deletions
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4
servers/visual/visual_server_canvas.cpp
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@@ -42,11 +42,13 @@ void VisualServerCanvas::_render_canvas_item_tree(Item *p_canvas_item, const Tra
_render_canvas_item(p_canvas_item, p_transform, p_clip_rect, Color(1, 1, 1, 1), 0, z_list, z_last_list, NULL, NULL);
VSG::canvas_render->canvas_render_items_begin(p_modulate, p_lights, p_transform);
for (int i = 0; i < z_range; i++) {
if (!z_list[i])
continue;
VSG::canvas_render->canvas_render_items(z_list[i], VS::CANVAS_ITEM_Z_MIN + i, p_modulate, p_lights, p_transform);
}
VSG::canvas_render->canvas_render_items_end();
}
void _collect_ysort_children(VisualServerCanvas::Item *p_canvas_item, Transform2D p_transform, VisualServerCanvas::Item *p_material_owner, const Color p_modulate, VisualServerCanvas::Item **r_items, int &r_index) {
@@ -259,6 +261,7 @@ void VisualServerCanvas::render_canvas(Canvas *p_canvas, const Transform2D &p_tr
_render_canvas_item(ci[i].item, p_transform, p_clip_rect, Color(1, 1, 1, 1), 0, z_list, z_last_list, NULL, NULL);
}
VSG::canvas_render->canvas_render_items_begin(p_canvas->modulate, p_lights, p_transform);
for (int i = 0; i < z_range; i++) {
if (!z_list[i])
continue;
@@ -269,6 +272,7 @@ void VisualServerCanvas::render_canvas(Canvas *p_canvas, const Transform2D &p_tr
VSG::canvas_render->canvas_render_items(z_list[i], VS::CANVAS_ITEM_Z_MIN + i, p_canvas->modulate, p_lights, p_transform);
}
VSG::canvas_render->canvas_render_items_end();
} else {
for (int i = 0; i < l; i++) {