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Avoid garbage creation on frame preparation/composition

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This commit is contained in:
Andreas Hocevar
2017-05-09 10:19:02 +02:00
parent a59a147dbd
commit 55e3746554
4 changed files with 34 additions and 46 deletions
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src/ol/renderer/canvas/vectortilelayer.js
+8 -12
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@@ -116,9 +116,8 @@ ol.renderer.canvas.VectorTileLayer.prototype.createReplayGroup_ = function(
return;
}
var sourceTiles = tile.getSourceTiles();
for (var t = 0, tt = sourceTiles.length; t < tt; ++t) {
var sourceTile = sourceTiles[t];
for (var t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
var sourceTile = tile.getTile(tile.tileKeys[t]);
sourceTile.replayGroup = null;
replayState.dirty = false;
@@ -244,9 +243,8 @@ ol.renderer.canvas.VectorTileLayer.prototype.forEachFeatureAtCoordinate = functi
if (!ol.extent.containsCoordinate(bufferedExtent, coordinate)) {
continue;
}
var sourceTiles = tile.getSourceTiles();
for (var t = 0, tt = sourceTiles.length; t < tt; ++t) {
var sourceTile = sourceTiles[t];
for (var t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
var sourceTile = tile.getTile(tile.tileKeys[t]);
if (sourceTile.getProjection().getUnits() === ol.proj.Units.TILE_PIXELS) {
var sourceTileCoord = sourceTile.tileCoord;
var sourceTileExtent = sourceTileGrid.getTileCoordExtent(sourceTileCoord, this.tmpExtent);
@@ -354,9 +352,8 @@ ol.renderer.canvas.VectorTileLayer.prototype.postCompose = function(context, fra
var tileCoord = tile.tileCoord;
var worldOffset = tileGrid.getTileCoordExtent(tileCoord)[0] -
tileGrid.getTileCoordExtent(tile.wrappedTileCoord)[0];
var sourceTiles = tile.getSourceTiles();
for (var t = 0, tt = sourceTiles.length; t < tt; ++t) {
var sourceTile = sourceTiles[t];
for (var t = 0, tt = tile.tileKeys.length; t < tt; ++t) {
var sourceTile = tile.getTile(tile.tileKeys[t]);
var currentZ = sourceTile.tileCoord[0];
var sourceResolution = sourceTileGrid.getResolution(currentZ);
var transform = this.getReplayTransform_(sourceTile, frameState);
@@ -451,9 +448,8 @@ ol.renderer.canvas.VectorTileLayer.prototype.renderTileImage_ = function(
context.canvas.width = size[0];
context.canvas.height = size[1];
var tileExtent = tileGrid.getTileCoordExtent(tileCoord);
var sourceTiles = tile.getSourceTiles();
for (var i = 0, ii = sourceTiles.length; i < ii; ++i) {
var sourceTile = sourceTiles[i];
for (var i = 0, ii = tile.tileKeys.length; i < ii; ++i) {
var sourceTile = tile.getTile(tile.tileKeys[i]);
var sourceTileCoord = sourceTile.tileCoord;
var pixelScale = pixelRatio / resolution;
var transform = ol.transform.reset(this.tmpTransform_);