104 lines
2.8 KiB
JavaScript
104 lines
2.8 KiB
JavaScript
import Check from "../Core/Check.js";
|
|
import defaultValue from "../Core/defaultValue.js";
|
|
import defined from "../Core/defined.js";
|
|
import destroyObject from "../Core/destroyObject.js";
|
|
import DeveloperError from "../Core/DeveloperError.js";
|
|
import ContextLimits from "./ContextLimits.js";
|
|
import RenderbufferFormat from "./RenderbufferFormat.js";
|
|
|
|
/**
|
|
* @private
|
|
*/
|
|
function Renderbuffer(options) {
|
|
options = defaultValue(options, defaultValue.EMPTY_OBJECT);
|
|
|
|
//>>includeStart('debug', pragmas.debug);
|
|
Check.defined("options.context", options.context);
|
|
//>>includeEnd('debug');
|
|
|
|
const context = options.context;
|
|
const gl = context._gl;
|
|
const maximumRenderbufferSize = ContextLimits.maximumRenderbufferSize;
|
|
|
|
const format = defaultValue(options.format, RenderbufferFormat.RGBA4);
|
|
const width = defined(options.width) ? options.width : gl.drawingBufferWidth;
|
|
const height = defined(options.height)
|
|
? options.height
|
|
: gl.drawingBufferHeight;
|
|
const numSamples = defaultValue(options.numSamples, 1);
|
|
|
|
//>>includeStart('debug', pragmas.debug);
|
|
if (!RenderbufferFormat.validate(format)) {
|
|
throw new DeveloperError("Invalid format.");
|
|
}
|
|
|
|
Check.typeOf.number.greaterThan("width", width, 0);
|
|
|
|
if (width > maximumRenderbufferSize) {
|
|
throw new DeveloperError(
|
|
`Width must be less than or equal to the maximum renderbuffer size (${maximumRenderbufferSize}). Check maximumRenderbufferSize.`
|
|
);
|
|
}
|
|
|
|
Check.typeOf.number.greaterThan("height", height, 0);
|
|
|
|
if (height > maximumRenderbufferSize) {
|
|
throw new DeveloperError(
|
|
`Height must be less than or equal to the maximum renderbuffer size (${maximumRenderbufferSize}). Check maximumRenderbufferSize.`
|
|
);
|
|
}
|
|
//>>includeEnd('debug');
|
|
|
|
this._gl = gl;
|
|
this._format = format;
|
|
this._width = width;
|
|
this._height = height;
|
|
this._renderbuffer = this._gl.createRenderbuffer();
|
|
|
|
gl.bindRenderbuffer(gl.RENDERBUFFER, this._renderbuffer);
|
|
if (numSamples > 1) {
|
|
gl.renderbufferStorageMultisample(
|
|
gl.RENDERBUFFER,
|
|
numSamples,
|
|
format,
|
|
width,
|
|
height
|
|
);
|
|
} else {
|
|
gl.renderbufferStorage(gl.RENDERBUFFER, format, width, height);
|
|
}
|
|
gl.bindRenderbuffer(gl.RENDERBUFFER, null);
|
|
}
|
|
|
|
Object.defineProperties(Renderbuffer.prototype, {
|
|
format: {
|
|
get: function () {
|
|
return this._format;
|
|
},
|
|
},
|
|
width: {
|
|
get: function () {
|
|
return this._width;
|
|
},
|
|
},
|
|
height: {
|
|
get: function () {
|
|
return this._height;
|
|
},
|
|
},
|
|
});
|
|
|
|
Renderbuffer.prototype._getRenderbuffer = function () {
|
|
return this._renderbuffer;
|
|
};
|
|
|
|
Renderbuffer.prototype.isDestroyed = function () {
|
|
return false;
|
|
};
|
|
|
|
Renderbuffer.prototype.destroy = function () {
|
|
this._gl.deleteRenderbuffer(this._renderbuffer);
|
|
return destroyObject(this);
|
|
};
|
|
export default Renderbuffer;
|