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back buffer copy node, to improve on texscreen()

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back buffer copy node and respective demo
This commit is contained in:
Juan Linietsky 2015-03-12 01:05:50 -03:00
parent 9f88a40e9f
commit 650e13f3cd
20 changed files with 272 additions and 12 deletions
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10
servers/visual/rasterizer.h
View file

@ -769,6 +769,12 @@ public:
mutable Rect2 rect;
CanvasItem*next;
CanvasItemMaterial* material;
struct CopyBackBuffer {
Rect2 rect;
Rect2 screen_rect;
bool full;
};
CopyBackBuffer *copy_back_buffer;
float final_opacity;
@ -904,8 +910,8 @@ public:
}
void clear() { for (int i=0;i<commands.size();i++) memdelete( commands[i] ); commands.clear(); clip=false; rect_dirty=true; final_clip_owner=NULL; material_owner=NULL;}
CanvasItem() { light_mask=1; vp_render=NULL; next=NULL; final_clip_owner=NULL; clip=false; final_opacity=1; blend_mode=VS::MATERIAL_BLEND_MODE_MIX; visible=true; rect_dirty=true; custom_rect=false; ontop=true; material_owner=NULL; material=NULL; }
virtual ~CanvasItem() { clear(); }
CanvasItem() { light_mask=1; vp_render=NULL; next=NULL; final_clip_owner=NULL; clip=false; final_opacity=1; blend_mode=VS::MATERIAL_BLEND_MODE_MIX; visible=true; rect_dirty=true; custom_rect=false; ontop=true; material_owner=NULL; material=NULL; copy_back_buffer=NULL; }
virtual ~CanvasItem() { clear(); if (copy_back_buffer) memdelete(copy_back_buffer); }
};

27
servers/visual/visual_server_raster.cpp
View file

@ -3765,6 +3765,27 @@ void VisualServerRaster::canvas_item_set_z_as_relative_to_parent(RID p_item, boo
}
void VisualServerRaster::canvas_item_set_copy_to_backbuffer(RID p_item, bool p_enable, const Rect2& p_rect) {
VS_CHANGED;
CanvasItem *canvas_item = canvas_item_owner.get( p_item );
ERR_FAIL_COND(!canvas_item);
if (bool(canvas_item->copy_back_buffer!=NULL) !=p_enable) {
if (p_enable) {
canvas_item->copy_back_buffer = memnew( Rasterizer::CanvasItem::CopyBackBuffer );
} else {
memdelete(canvas_item->copy_back_buffer);
canvas_item->copy_back_buffer=NULL;
}
}
if (p_enable) {
canvas_item->copy_back_buffer->rect=p_rect;
canvas_item->copy_back_buffer->full=p_rect==Rect2();
}
}
void VisualServerRaster::canvas_item_set_use_parent_material(RID p_item, bool p_enable) {
VS_CHANGED;
@ -6766,8 +6787,12 @@ void VisualServerRaster::_render_canvas_item(CanvasItem *p_canvas_item,const Mat
_render_canvas_item(child_items[i],xform,p_clip_rect,opacity,p_z,z_list,z_last_list,(CanvasItem*)ci->final_clip_owner,p_material_owner);
}
if (ci->copy_back_buffer) {
if ((!ci->commands.empty() && p_clip_rect.intersects(global_rect)) || ci->vp_render) {
ci->copy_back_buffer->screen_rect = xform.xform(ci->copy_back_buffer->rect).clip(p_clip_rect);
}
if ((!ci->commands.empty() && p_clip_rect.intersects(global_rect)) || ci->vp_render || ci->copy_back_buffer) {
//something to draw?
ci->final_transform=xform;
ci->final_opacity=opacity * ci->self_opacity;

1
servers/visual/visual_server_raster.h
View file

@ -1149,6 +1149,7 @@ public:
virtual void canvas_item_set_sort_children_by_y(RID p_item, bool p_enable);
virtual void canvas_item_set_z(RID p_item, int p_z);
virtual void canvas_item_set_z_as_relative_to_parent(RID p_item, bool p_enable);
virtual void canvas_item_set_copy_to_backbuffer(RID p_item, bool p_enable,const Rect2& p_rect);
virtual void canvas_item_set_material(RID p_item, RID p_material);
virtual void canvas_item_set_use_parent_material(RID p_item, bool p_enable);

2
servers/visual/visual_server_wrap_mt.h
View file

@ -1138,6 +1138,8 @@ public:
FUNC2(canvas_item_set_sort_children_by_y,RID,bool);
FUNC2(canvas_item_set_z,RID,int);
FUNC2(canvas_item_set_z_as_relative_to_parent,RID,bool);
FUNC3(canvas_item_set_copy_to_backbuffer,RID,bool,const Rect2&);
FUNC2(canvas_item_set_material,RID, RID );

1
servers/visual_server.h
View file

@ -994,6 +994,7 @@ public:
virtual void canvas_item_set_sort_children_by_y(RID p_item, bool p_enable)=0;
virtual void canvas_item_set_z(RID p_item, int p_z)=0;
virtual void canvas_item_set_z_as_relative_to_parent(RID p_item, bool p_enable)=0;
virtual void canvas_item_set_copy_to_backbuffer(RID p_item, bool p_enable,const Rect2& p_rect)=0;
virtual void canvas_item_clear(RID p_item)=0;
virtual void canvas_item_raise(RID p_item)=0;