void BlendState::init(const BlendDesc& desc)
{
desc_.enabled = desc.enabled;
if (desc_.enabled)
{
desc_.func = get_blend_operation(desc.func);
desc_.func_alpha = get_blend_operation(desc.func_alpha);
desc_.srcmode = get_blend_mode(desc.srcmode);
desc_.dstmode = get_blend_mode(desc.dstmode);
desc_.srcmode_alpha = get_blend_mode(desc.srcmode_alpha);
desc_.dstmode_alpha = get_blend_mode(desc.dstmode_alpha);
}
}
/**
* \brief Returns the blend mode as an SDL_BlendMode value.
* \return The blend mode.
*/
SDL_BlendMode Surface::get_sdl_blend_mode() const {
switch (get_blend_mode()) {
case BlendMode::NONE:
return SDL_BLENDMODE_NONE;
case BlendMode::BLEND:
return SDL_BLENDMODE_BLEND;
case BlendMode::ADD:
return SDL_BLENDMODE_ADD;
case BlendMode::MULTIPLY:
return SDL_BLENDMODE_MOD;
}
return SDL_BLENDMODE_BLEND;
}
/**
* \brief Draws a subrectangle of this surface on another surface.
* \param region The subrectangle to draw in this object.
* \param dst_surface The destination surface.
* \param dst_position Coordinates on the destination surface.
*/
void Surface::raw_draw_region(
const Rectangle& region,
Surface& dst_surface,
const Point& dst_position) {
if (dst_surface.software_destination // The destination surface is in RAM.
|| !Video::is_acceleration_enabled() // The rendering is in RAM.
) {
if (dst_surface.internal_surface == nullptr) {
dst_surface.create_software_surface();
}
// First, draw subsurfaces if any.
// They can exist if the video mode recently switched from an accelerated
// one to a software one.
if (!subsurfaces.empty()) {
if (this->internal_surface == nullptr) {
create_software_surface();
}
std::vector<SubSurfaceNodePtr> subsurfaces = this->subsurfaces;
this->subsurfaces.clear(); // Avoid infinite recursive calls if there are cycles.
for (SubSurfaceNodePtr& subsurface: subsurfaces) {
// TODO draw the subsurfaces of the whole tree recursively instead.
// The current version is not correct because it handles only one level
// (it ignores subsurface->subsurfaces).
// Plus it needs the workaround above to avoid a stack overflow.
subsurface->src_surface->raw_draw_region(
subsurface->src_rect,
*this,
subsurface->dst_rect.get_xy()
);
subsurface = nullptr;
}
clear_subsurfaces();
}
if (this->internal_surface != nullptr) {
// The source surface is not empty: draw it onto the destination.
SDL_SetSurfaceBlendMode(
this->internal_surface.get(),
get_sdl_blend_mode()
);
SDL_BlitSurface(
this->internal_surface.get(),
region.get_internal_rect(),
dst_surface.internal_surface.get(),
Rectangle(dst_position).get_internal_rect()
);
}
else if (internal_color != nullptr) { // No internal surface to draw: this may be a color.
if (get_blend_mode() == BlendMode::BLEND && internal_color->get_alpha() == 255) {
// Fill with opaque color: we can directly modify the destination pixels.
Rectangle dst_rect(
dst_position,
region.get_size()
);
SDL_FillRect(
dst_surface.internal_surface.get(),
dst_rect.get_internal_rect(),
get_color_value(*internal_color)
);
}
else {
// Fill with semi-transparent pixels: perform alpha-blending.
create_software_surface();
SDL_FillRect(
this->internal_surface.get(),
nullptr,
get_color_value(*internal_color)
);
SDL_BlitSurface(
this->internal_surface.get(),
region.get_internal_rect(),
dst_surface.internal_surface.get(),
Rectangle(dst_position).get_internal_rect()
);
}
}
}
else {
// The destination is a GPU surface (a texture).
// Do not draw anything, just store the operation in the tree instead.
// The actual drawing will be done at rendering time in GPU.
SurfacePtr src_surface = std::static_pointer_cast<Surface>(shared_from_this());
dst_surface.add_subsurface(src_surface, region, dst_position);
}
dst_surface.is_rendered = false;
}
void TileMap::_update_dirty_quadrants() {
if (!pending_update)
return;
if (!is_inside_tree())
return;
if (!tile_set.is_valid())
return;
VisualServer *vs = VisualServer::get_singleton();
Physics2DServer *ps = Physics2DServer::get_singleton();
Vector2 tofs = get_cell_draw_offset();
Vector2 tcenter = cell_size/2;
Matrix32 nav_rel;
if (navigation)
nav_rel = get_relative_transform_to_parent(navigation);
Vector2 qofs;
SceneTree *st=SceneTree::get_singleton();
Color debug_collision_color;
bool debug_shapes = st && st->is_debugging_collisions_hint();
if (debug_shapes) {
debug_collision_color=st->get_debug_collisions_color();
}
while (dirty_quadrant_list.first()) {
Quadrant &q = *dirty_quadrant_list.first()->self();
for (List<RID>::Element *E=q.canvas_items.front();E;E=E->next()) {
vs->free(E->get());
}
q.canvas_items.clear();
ps->body_clear_shapes(q.body);
int shape_idx=0;
if (navigation) {
for(Map<PosKey,Quadrant::NavPoly>::Element *E=q.navpoly_ids.front();E;E=E->next()) {
navigation->navpoly_remove(E->get().id);
}
q.navpoly_ids.clear();
}
for(Map<PosKey,Quadrant::Occluder>::Element *E=q.occluder_instances.front();E;E=E->next()) {
VS::get_singleton()->free(E->get().id);
}
q.occluder_instances.clear();
Ref<CanvasItemMaterial> prev_material;
RID prev_canvas_item;
RID prev_debug_canvas_item;
for(int i=0;i<q.cells.size();i++) {
Map<PosKey,Cell>::Element *E=tile_map.find( q.cells[i] );
Cell &c=E->get();
//moment of truth
if (!tile_set->has_tile(c.id))
continue;
Ref<Texture> tex = tile_set->tile_get_texture(c.id);
Vector2 tile_ofs = tile_set->tile_get_texture_offset(c.id);
Vector2 wofs = _map_to_world(E->key().x, E->key().y);
Vector2 offset = wofs - q.pos + tofs;
if (!tex.is_valid())
continue;
Ref<CanvasItemMaterial> mat = tile_set->tile_get_material(c.id);
RID canvas_item;
RID debug_canvas_item;
if (prev_canvas_item==RID() || prev_material!=mat) {
canvas_item=vs->canvas_item_create();
if (mat.is_valid())
vs->canvas_item_set_material(canvas_item,mat->get_rid());
vs->canvas_item_set_parent( canvas_item, get_canvas_item() );
Matrix32 xform;
xform.set_origin( q.pos );
vs->canvas_item_set_transform( canvas_item, xform );
vs->canvas_item_set_light_mask(canvas_item,get_light_mask());
vs->canvas_item_set_blend_mode(canvas_item,VS::MaterialBlendMode(get_blend_mode()));
q.canvas_items.push_back(canvas_item);
if (debug_shapes) {
debug_canvas_item=vs->canvas_item_create();
vs->canvas_item_set_parent( debug_canvas_item, canvas_item );
vs->canvas_item_set_z_as_relative_to_parent(debug_canvas_item,false);
vs->canvas_item_set_z(debug_canvas_item,VS::CANVAS_ITEM_Z_MAX-1);
q.canvas_items.push_back(debug_canvas_item);
prev_debug_canvas_item=debug_canvas_item;
}
prev_canvas_item=canvas_item;
prev_material=mat;
} else {
canvas_item=prev_canvas_item;
if (debug_shapes) {
debug_canvas_item=prev_debug_canvas_item;
}
}
Rect2 r = tile_set->tile_get_region(c.id);
Size2 s = tex->get_size();
if (r==Rect2())
s = tex->get_size();
else {
s = r.size;
r.pos.x+=fp_adjust;
r.pos.y+=fp_adjust;
r.size.x-=fp_adjust*2.0;
r.size.y-=fp_adjust*2.0;
}
Rect2 rect;
rect.pos=offset.floor();
rect.size=s;
if (rect.size.y > rect.size.x) {
if ((c.flip_h && (c.flip_v || c.transpose)) || (c.flip_v && !c.transpose))
tile_ofs.y += rect.size.y - rect.size.x;
} else if (rect.size.y < rect.size.x) {
if ((c.flip_v && (c.flip_h || c.transpose)) || (c.flip_h && !c.transpose))
tile_ofs.x += rect.size.x - rect.size.y;
}
/* rect.size.x+=fp_adjust;
rect.size.y+=fp_adjust;*/
if (c.transpose)
SWAP(tile_ofs.x, tile_ofs.y);
if (c.flip_h) {
rect.size.x=-rect.size.x;
tile_ofs.x=-tile_ofs.x;
}
if (c.flip_v) {
rect.size.y=-rect.size.y;
tile_ofs.y=-tile_ofs.y;
}
Vector2 center_ofs;
if (tile_origin==TILE_ORIGIN_TOP_LEFT) {
rect.pos+=tile_ofs;
} else if (tile_origin==TILE_ORIGIN_BOTTOM_LEFT) {
rect.pos+=tile_ofs;
if(c.transpose)
{
if(c.flip_h)
rect.pos.x-=cell_size.x;
else
rect.pos.x+=cell_size.x;
} else {
if(c.flip_v)
rect.pos.y-=cell_size.y;
else
rect.pos.y+=cell_size.y;
}
} else if (tile_origin==TILE_ORIGIN_CENTER) {
rect.pos+=tcenter;
Vector2 center = (s/2) - tile_ofs;
center_ofs=tcenter-(s/2);
if (c.flip_h)
rect.pos.x-=s.x-center.x;
else
rect.pos.x-=center.x;
if (c.flip_v)
rect.pos.y-=s.y-center.y;
else
rect.pos.y-=center.y;
}
if (r==Rect2()) {
tex->draw_rect(canvas_item,rect,false,Color(1,1,1),c.transpose);
} else {
tex->draw_rect_region(canvas_item,rect,r,Color(1,1,1),c.transpose);
}
Vector< Ref<Shape2D> > shapes = tile_set->tile_get_shapes(c.id);
for(int i=0;i<shapes.size();i++) {
Ref<Shape2D> shape = shapes[i];
if (shape.is_valid()) {
Vector2 shape_ofs = tile_set->tile_get_shape_offset(c.id);
Matrix32 xform;
xform.set_origin(offset.floor());
_fix_cell_transform(xform,c,shape_ofs+center_ofs,s);
if (debug_canvas_item) {
vs->canvas_item_add_set_transform(debug_canvas_item,xform);
shape->draw(debug_canvas_item,debug_collision_color);
}
ps->body_add_shape(q.body,shape->get_rid(),xform);
ps->body_set_shape_metadata(q.body,shape_idx++,Vector2(E->key().x,E->key().y));
}
}
if (debug_canvas_item) {
vs->canvas_item_add_set_transform(debug_canvas_item,Matrix32());
}
if (navigation) {
Ref<NavigationPolygon> navpoly = tile_set->tile_get_navigation_polygon(c.id);
if (navpoly.is_valid()) {
Vector2 npoly_ofs = tile_set->tile_get_navigation_polygon_offset(c.id);
Matrix32 xform;
xform.set_origin(offset.floor()+q.pos);
_fix_cell_transform(xform,c,npoly_ofs+center_ofs,s);
int pid = navigation->navpoly_create(navpoly,nav_rel * xform);
Quadrant::NavPoly np;
np.id=pid;
np.xform=xform;
q.navpoly_ids[E->key()]=np;
}
}
Ref<OccluderPolygon2D> occluder=tile_set->tile_get_light_occluder(c.id);
if (occluder.is_valid()) {
Vector2 occluder_ofs = tile_set->tile_get_occluder_offset(c.id);
Matrix32 xform;
xform.set_origin(offset.floor()+q.pos);
_fix_cell_transform(xform,c,occluder_ofs+center_ofs,s);
RID orid = VS::get_singleton()->canvas_light_occluder_create();
VS::get_singleton()->canvas_light_occluder_set_transform(orid,get_global_transform() * xform);
VS::get_singleton()->canvas_light_occluder_set_polygon(orid,occluder->get_rid());
VS::get_singleton()->canvas_light_occluder_attach_to_canvas(orid,get_canvas());
VS::get_singleton()->canvas_light_occluder_set_light_mask(orid,occluder_light_mask);
Quadrant::Occluder oc;
oc.xform=xform;
oc.id=orid;
q.occluder_instances[E->key()]=oc;
}
}
dirty_quadrant_list.remove( dirty_quadrant_list.first() );
quadrant_order_dirty=true;
}
pending_update=false;
if (quadrant_order_dirty) {
for (Map<PosKey,Quadrant>::Element *E=quadrant_map.front();E;E=E->next()) {
Quadrant &q=E->get();
for (List<RID>::Element *E=q.canvas_items.front();E;E=E->next()) {
VS::get_singleton()->canvas_item_raise(E->get());
}
}
quadrant_order_dirty=false;
}
for(int i=0;i<get_child_count();i++) {
CanvasItem *c=get_child(i)->cast_to<CanvasItem>();
if (c)
VS::get_singleton()->canvas_item_raise(c->get_canvas_item());
}
_recompute_rect_cache();
}
