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Cache list of active viewports instead of always iterating window list.

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This is to speed up marking all viewports dirty, which is done very
frequently.
This commit is contained in:
Jonathan G Rennison
2016-09-09 21:19:05 +01:00
parent c20cf31514
commit c137303584
1 changed files with 14 additions and 22 deletions
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36
src/viewport.cpp
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@@ -96,6 +96,7 @@
#include "depot_base.h"
#include "tunnelbridge_map.h"
#include "gui.h"
#include "core/container_func.hpp"
#include <map>
#include <vector>
@@ -193,6 +194,8 @@ static void MarkRouteStepDirty(const TileIndex tile, uint order_nr);
static DrawPixelInfo _dpi_for_text;
static ViewportDrawer _vd;
static std::vector<ViewPort *> _viewport_window_cache;
RouteStepsMap _vp_route_steps;
RouteStepsMap _vp_route_steps_last_mark_dirty;
uint _vp_route_step_width = 0;
@@ -242,6 +245,7 @@ void DeleteWindowViewport(Window *w)
{
if (w->viewport == NULL) return;
container_unordered_remove(_viewport_window_cache, w->viewport);
delete w->viewport->overlay;
free(w->viewport);
w->viewport = NULL;
@@ -304,6 +308,7 @@ void InitializeWindowViewport(Window *w, int x, int y,
w->viewport = vp;
vp->virtual_left = 0; // pt.x;
vp->virtual_top = 0; // pt.y;
_viewport_window_cache.push_back(vp);
}
static Point _vp_move_offs;
@@ -1402,11 +1407,8 @@ void ViewportSign::MarkDirty(ZoomLevel maxzoom) const
zoomlevels[zoom].bottom = this->top + ScaleByZoom(VPSM_TOP + FONT_HEIGHT_NORMAL + VPSM_BOTTOM + 1, zoom);
}
Window *w;
FOR_ALL_WINDOWS_FROM_BACK(w) {
ViewPort *vp = w->viewport;
if (vp != NULL && vp->zoom <= maxzoom) {
assert(vp->width != 0);
for (ViewPort *vp : _viewport_window_cache) {
if (vp->zoom <= maxzoom) {
Rect &zl = zoomlevels[vp->zoom];
MarkViewportDirty(vp, zl.left, zl.top, zl.right, zl.bottom);
}
@@ -2799,31 +2801,21 @@ static void MarkViewportDirty(const ViewPort * const vp, int left, int top, int
*/
void MarkAllViewportsDirty(int left, int top, int right, int bottom, const ZoomLevel mark_dirty_if_zoomlevel_is_below)
{
Window *w;
FOR_ALL_WINDOWS_FROM_BACK(w) {
const ViewPort * const vp = w->viewport;
if (vp != NULL) {
assert(vp->width != 0);
if (vp->zoom >= mark_dirty_if_zoomlevel_is_below) continue;
MarkViewportDirty(vp, left, top, right, bottom);
}
for (const ViewPort * const vp : _viewport_window_cache) {
if (vp->zoom >= mark_dirty_if_zoomlevel_is_below) continue;
MarkViewportDirty(vp, left, top, right, bottom);
}
}
static void MarkRouteStepDirty(const TileIndex tile, uint order_nr)
{
assert(tile != INVALID_TILE);
Window *w;
const Point pt = RemapCoords2(TileX(tile) * TILE_SIZE + TILE_SIZE / 2, TileY(tile) * TILE_SIZE + TILE_SIZE / 2);
const int char_height = GetCharacterHeight(FS_SMALL) + 1;
FOR_ALL_WINDOWS_FROM_BACK(w) {
const ViewPort * const vp = w->viewport;
if (vp != NULL) {
assert(vp->width != 0);
const int half_width = ScaleByZoom((_vp_route_step_width / 2) + 1, vp->zoom);
const int height = ScaleByZoom(_vp_route_step_height_top + char_height * order_nr + _vp_route_step_height_bottom, vp->zoom);
MarkViewportDirty(vp, pt.x - half_width, pt.y - height, pt.x + half_width, pt.y);
}
for (const ViewPort * const vp : _viewport_window_cache) {
const int half_width = ScaleByZoom((_vp_route_step_width / 2) + 1, vp->zoom);
const int height = ScaleByZoom(_vp_route_step_height_top + char_height * order_nr + _vp_route_step_height_bottom, vp->zoom);
MarkViewportDirty(vp, pt.x - half_width, pt.y - height, pt.x + half_width, pt.y);
}
}