import Texture from '../textures/BaseTexture';
import { FORMATS, TYPES } from '@pixi/constants';
/**
* Frame buffer
* @class
* @memberof PIXI
*/
export default class FrameBuffer
{
constructor(width, height)
{
this.width = Math.ceil(width || 100);
this.height = Math.ceil(height || 100);
this.stencil = false;
this.depth = false;
this.dirtyId = 0;
this.dirtyFormat = 0;
this.dirtySize = 0;
this.depthTexture = null;
this.colorTextures = [];
this.glFrameBuffers = {};
}
get colorTexture()
{
return this.colorTextures[0];
}
addColorTexture(index, texture)
{
// TODO add some validation to the texture - same width / height etc?
this.colorTextures[index || 0] = texture || new Texture(null, { scaleMode: 0,
resolution: 1,
mipmap: false,
width: this.width,
height: this.height });// || new Texture();
this.dirtyId++;
this.dirtyFormat++;
return this;
}
addDepthTexture(texture)
{
/* eslint-disable max-len */
this.depthTexture = texture || new Texture(null, { scaleMode: 0,
resolution: 1,
width: this.width,
height: this.height,
mipmap: false,
format: FORMATS.DEPTH_COMPONENT,
type: TYPES.UNSIGNED_SHORT });// UNSIGNED_SHORT;
/* eslint-disable max-len */
this.dirtyId++;
this.dirtyFormat++;
return this;
}
enableDepth()
{
this.depth = true;
this.dirtyId++;
this.dirtyFormat++;
return this;
}
enableStencil()
{
this.stencil = true;
this.dirtyId++;
this.dirtyFormat++;
return this;
}
resize(width, height)
{
width = Math.ceil(width);
height = Math.ceil(height);
if (width === this.width && height === this.height) return;
this.width = width;
this.height = height;
this.dirtyId++;
this.dirtySize++;
for (let i = 0; i < this.colorTextures.length; i++)
{
this.colorTextures[i].setSize(width, height);
}
if (this.depthTexture)
{
this.depthTexture.setSize(width, height);
}
}
}