Imports cased like the filename
This commit is contained in:
Tim Schaub
268
src/ol/renderer/webgl/Layer.js
Normal file
268
src/ol/renderer/webgl/Layer.js
Normal file
@@ -0,0 +1,268 @@
|
||||
goog.provide('ol.renderer.webgl.Layer');
|
||||
|
||||
goog.require('ol');
|
||||
goog.require('ol.render.Event');
|
||||
goog.require('ol.render.EventType');
|
||||
goog.require('ol.render.webgl.Immediate');
|
||||
goog.require('ol.renderer.Layer');
|
||||
goog.require('ol.renderer.webgl.defaultmapshader');
|
||||
goog.require('ol.renderer.webgl.defaultmapshader.Locations');
|
||||
goog.require('ol.transform');
|
||||
goog.require('ol.vec.Mat4');
|
||||
goog.require('ol.webgl');
|
||||
goog.require('ol.webgl.Buffer');
|
||||
goog.require('ol.webgl.Context');
|
||||
|
||||
|
||||
/**
|
||||
* @constructor
|
||||
* @abstract
|
||||
* @extends {ol.renderer.Layer}
|
||||
* @param {ol.renderer.webgl.Map} mapRenderer Map renderer.
|
||||
* @param {ol.layer.Layer} layer Layer.
|
||||
*/
|
||||
ol.renderer.webgl.Layer = function(mapRenderer, layer) {
|
||||
|
||||
ol.renderer.Layer.call(this, layer);
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {ol.renderer.webgl.Map}
|
||||
*/
|
||||
this.mapRenderer = mapRenderer;
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {ol.webgl.Buffer}
|
||||
*/
|
||||
this.arrayBuffer_ = new ol.webgl.Buffer([
|
||||
-1, -1, 0, 0,
|
||||
1, -1, 1, 0,
|
||||
-1, 1, 0, 1,
|
||||
1, 1, 1, 1
|
||||
]);
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {WebGLTexture}
|
||||
*/
|
||||
this.texture = null;
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {WebGLFramebuffer}
|
||||
*/
|
||||
this.framebuffer = null;
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {number|undefined}
|
||||
*/
|
||||
this.framebufferDimension = undefined;
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {ol.Transform}
|
||||
*/
|
||||
this.texCoordMatrix = ol.transform.create();
|
||||
|
||||
/**
|
||||
* @protected
|
||||
* @type {ol.Transform}
|
||||
*/
|
||||
this.projectionMatrix = ol.transform.create();
|
||||
|
||||
/**
|
||||
* @type {Array.<number>}
|
||||
* @private
|
||||
*/
|
||||
this.tmpMat4_ = ol.vec.Mat4.create();
|
||||
|
||||
/**
|
||||
* @private
|
||||
* @type {ol.renderer.webgl.defaultmapshader.Locations}
|
||||
*/
|
||||
this.defaultLocations_ = null;
|
||||
|
||||
};
|
||||
ol.inherits(ol.renderer.webgl.Layer, ol.renderer.Layer);
|
||||
|
||||
|
||||
/**
|
||||
* @param {olx.FrameState} frameState Frame state.
|
||||
* @param {number} framebufferDimension Framebuffer dimension.
|
||||
* @protected
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.bindFramebuffer = function(frameState, framebufferDimension) {
|
||||
|
||||
var gl = this.mapRenderer.getGL();
|
||||
|
||||
if (this.framebufferDimension === undefined ||
|
||||
this.framebufferDimension != framebufferDimension) {
|
||||
/**
|
||||
* @param {WebGLRenderingContext} gl GL.
|
||||
* @param {WebGLFramebuffer} framebuffer Framebuffer.
|
||||
* @param {WebGLTexture} texture Texture.
|
||||
*/
|
||||
var postRenderFunction = function(gl, framebuffer, texture) {
|
||||
if (!gl.isContextLost()) {
|
||||
gl.deleteFramebuffer(framebuffer);
|
||||
gl.deleteTexture(texture);
|
||||
}
|
||||
}.bind(null, gl, this.framebuffer, this.texture);
|
||||
|
||||
frameState.postRenderFunctions.push(
|
||||
/** @type {ol.PostRenderFunction} */ (postRenderFunction)
|
||||
);
|
||||
|
||||
var texture = ol.webgl.Context.createEmptyTexture(
|
||||
gl, framebufferDimension, framebufferDimension);
|
||||
|
||||
var framebuffer = gl.createFramebuffer();
|
||||
gl.bindFramebuffer(ol.webgl.FRAMEBUFFER, framebuffer);
|
||||
gl.framebufferTexture2D(ol.webgl.FRAMEBUFFER,
|
||||
ol.webgl.COLOR_ATTACHMENT0, ol.webgl.TEXTURE_2D, texture, 0);
|
||||
|
||||
this.texture = texture;
|
||||
this.framebuffer = framebuffer;
|
||||
this.framebufferDimension = framebufferDimension;
|
||||
|
||||
} else {
|
||||
gl.bindFramebuffer(ol.webgl.FRAMEBUFFER, this.framebuffer);
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {olx.FrameState} frameState Frame state.
|
||||
* @param {ol.LayerState} layerState Layer state.
|
||||
* @param {ol.webgl.Context} context Context.
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.composeFrame = function(frameState, layerState, context) {
|
||||
|
||||
this.dispatchComposeEvent_(
|
||||
ol.render.EventType.PRECOMPOSE, context, frameState);
|
||||
|
||||
context.bindBuffer(ol.webgl.ARRAY_BUFFER, this.arrayBuffer_);
|
||||
|
||||
var gl = context.getGL();
|
||||
|
||||
var fragmentShader = ol.renderer.webgl.defaultmapshader.fragment;
|
||||
var vertexShader = ol.renderer.webgl.defaultmapshader.vertex;
|
||||
|
||||
var program = context.getProgram(fragmentShader, vertexShader);
|
||||
|
||||
var locations;
|
||||
if (!this.defaultLocations_) {
|
||||
locations = new ol.renderer.webgl.defaultmapshader.Locations(gl, program);
|
||||
this.defaultLocations_ = locations;
|
||||
} else {
|
||||
locations = this.defaultLocations_;
|
||||
}
|
||||
|
||||
if (context.useProgram(program)) {
|
||||
gl.enableVertexAttribArray(locations.a_position);
|
||||
gl.vertexAttribPointer(
|
||||
locations.a_position, 2, ol.webgl.FLOAT, false, 16, 0);
|
||||
gl.enableVertexAttribArray(locations.a_texCoord);
|
||||
gl.vertexAttribPointer(
|
||||
locations.a_texCoord, 2, ol.webgl.FLOAT, false, 16, 8);
|
||||
gl.uniform1i(locations.u_texture, 0);
|
||||
}
|
||||
|
||||
gl.uniformMatrix4fv(locations.u_texCoordMatrix, false,
|
||||
ol.vec.Mat4.fromTransform(this.tmpMat4_, this.getTexCoordMatrix()));
|
||||
gl.uniformMatrix4fv(locations.u_projectionMatrix, false,
|
||||
ol.vec.Mat4.fromTransform(this.tmpMat4_, this.getProjectionMatrix()));
|
||||
gl.uniform1f(locations.u_opacity, layerState.opacity);
|
||||
gl.bindTexture(ol.webgl.TEXTURE_2D, this.getTexture());
|
||||
gl.drawArrays(ol.webgl.TRIANGLE_STRIP, 0, 4);
|
||||
|
||||
this.dispatchComposeEvent_(
|
||||
ol.render.EventType.POSTCOMPOSE, context, frameState);
|
||||
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @param {ol.render.EventType} type Event type.
|
||||
* @param {ol.webgl.Context} context WebGL context.
|
||||
* @param {olx.FrameState} frameState Frame state.
|
||||
* @private
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.dispatchComposeEvent_ = function(type, context, frameState) {
|
||||
var layer = this.getLayer();
|
||||
if (layer.hasListener(type)) {
|
||||
var viewState = frameState.viewState;
|
||||
var resolution = viewState.resolution;
|
||||
var pixelRatio = frameState.pixelRatio;
|
||||
var extent = frameState.extent;
|
||||
var center = viewState.center;
|
||||
var rotation = viewState.rotation;
|
||||
var size = frameState.size;
|
||||
|
||||
var render = new ol.render.webgl.Immediate(
|
||||
context, center, resolution, rotation, size, extent, pixelRatio);
|
||||
var composeEvent = new ol.render.Event(
|
||||
type, render, frameState, null, context);
|
||||
layer.dispatchEvent(composeEvent);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @return {!ol.Transform} Matrix.
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.getTexCoordMatrix = function() {
|
||||
return this.texCoordMatrix;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @return {WebGLTexture} Texture.
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.getTexture = function() {
|
||||
return this.texture;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @return {!ol.Transform} Matrix.
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.getProjectionMatrix = function() {
|
||||
return this.projectionMatrix;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Handle webglcontextlost.
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.handleWebGLContextLost = function() {
|
||||
this.texture = null;
|
||||
this.framebuffer = null;
|
||||
this.framebufferDimension = undefined;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @param {olx.FrameState} frameState Frame state.
|
||||
* @param {ol.LayerState} layerState Layer state.
|
||||
* @param {ol.webgl.Context} context Context.
|
||||
* @return {boolean} whether composeFrame should be called.
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.prepareFrame = function(frameState, layerState, context) {};
|
||||
|
||||
|
||||
/**
|
||||
* @abstract
|
||||
* @param {ol.Pixel} pixel Pixel.
|
||||
* @param {olx.FrameState} frameState FrameState.
|
||||
* @param {function(this: S, ol.layer.Layer, (Uint8ClampedArray|Uint8Array)): T} callback Layer
|
||||
* callback.
|
||||
* @param {S} thisArg Value to use as `this` when executing `callback`.
|
||||
* @return {T|undefined} Callback result.
|
||||
* @template S,T,U
|
||||
*/
|
||||
ol.renderer.webgl.Layer.prototype.forEachLayerAtPixel = function(pixel, frameState, callback, thisArg) {};
|
||||
Reference in New Issue
Block a user