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Snapshot WebGL renderer

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This commit is contained in:
Tom Payne
2012-07-15 16:32:00 +02:00
parent 1d567bb2bf
commit 582a9e93e0
9 changed files with 70 additions and 473 deletions
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58
src/ol/webgl/tilelayerrenderer.js
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@@ -52,6 +52,14 @@ ol.webgl.TileLayerRenderer = function(map, tileLayer) {
goog.inherits(ol.webgl.TileLayerRenderer, ol.webgl.LayerRenderer);
/**
* @inheritDoc
*/
ol.webgl.TileLayerRenderer.prototype.getTexture = function() {
return this.texture_;
};
/**
* @private
*/
@@ -82,16 +90,16 @@ ol.webgl.TileLayerRenderer.prototype.bindFramebuffer_ = function() {
goog.webgl.REPEAT);
var renderbuffer = gl.createRenderbuffer();
gl.bindRenderbuffer(gl.RENDERBUFFER, renderbuffer);
gl.renderbufferStorage(
gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, size.width, size.height);
gl.bindRenderbuffer(goog.webgl.RENDERBUFFER, renderbuffer);
gl.renderbufferStorage(goog.webgl.RENDERBUFFER,
goog.webgl.DEPTH_COMPONENT16, size.width, size.height);
var framebuffer = gl.createFramebuffer();
gl.bindFramebuffer(goog.webgl.FRAMEBUFFER, framebuffer);
gl.framebufferTexture2D(goog.webgl.FRAMEBUFFER,
goog.webgl.COLOR_ATTACHMENT0, goog.webgl.TEXTURE_2D, texture, 0);
gl.framebufferRenderbuffer(goog.webgl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT,
gl.RENDERBUFFER, renderbuffer);
gl.framebufferRenderbuffer(goog.webgl.FRAMEBUFFER,
goog.webgl.DEPTH_ATTACHMENT, goog.webgl.RENDERBUFFER, renderbuffer);
gl.deleteFramebuffer(this.framebuffer_);
gl.deleteRenderbuffer(this.renderbuffer_);
@@ -128,6 +136,37 @@ ol.webgl.TileLayerRenderer.prototype.disposeInternal = function() {
};
/**
* @inheritDoc
*/
ol.webgl.TileLayerRenderer.prototype.redraw = function() {
var map = /** @type {ol.webgl.Map} */ (this.getMap());
var extent = map.getExtent();
var resolution = map.getResolution();
if (!goog.isDef(extent) || !goog.isDef(resolution)) {
return;
}
var tileLayer = /** @type {ol.TileLayer} */ (this.getLayer());
var tileStore = tileLayer.getTileStore();
var tileGrid = tileStore.getTileGrid();
var z = tileGrid.getZForResolution(resolution);
var tileBounds = tileGrid.getExtentTileBounds(z, extent);
var tileCoordOrigin = new ol.TileCoord(z, tileBounds.left, tileBounds.bottom);
var tileSize = tileGrid.getTileSize();
this.size_ = new goog.math.Size(
tileSize.width * (tileBounds.right - tileBounds.left),
tileSize.height * (tileBounds.top - tileBounds.bottom));
this.bindFramebuffer_();
tileBounds.forEachTileCoord(z, function(tileCoord) {
var x = tileCoord.x;
var y = tileCoord.y;
var deltaX = tileCoord.x - tileCoordOrigin.x;
var deltaY = tileCoord.y - tileCoordOrigin.y;
return false;
}, this);
};
/**
* @inheritDoc
*/
@@ -142,12 +181,3 @@ ol.webgl.TileLayerRenderer.prototype.handleLayerOpacityChange = function() {
ol.webgl.TileLayerRenderer.prototype.handleLayerVisibleChange = function() {
this.dispatchChangeEvent();
};
/**
* @param {goog.math.Size} size Size.
* @private
*/
ol.webgl.TileLayerRenderer.prototype.setSize_ = function(size) {
this.size_ = size;
};