const { utils } = require('../../../utils');

const { GLTexture } = require('./index');

class GLTextureFloat extends GLTexture {

get textureType() {

return this.context.FLOAT;

}

constructor(settings) {

super(settings);

this.type = 'ArrayTexture(1)';

}

renderRawOutput() {

const gl = this.context;

const size = this.size;

gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer());

gl.framebufferTexture2D(

gl.FRAMEBUFFER,

gl.COLOR_ATTACHMENT0,

gl.TEXTURE_2D,

this.texture,

0

);

const result = new Float32Array(size[0] * size[1] * 4);

gl.readPixels(0, 0, size[0], size[1], gl.RGBA, gl.FLOAT, result);

return result;

}

renderValues() {

if (this._deleted) return null;

return this.renderRawOutput();

}

toArray() {

return utils.erectFloat(this.renderValues(), this.output[0]);

}

}

module.exports = {

GLTextureFloat

};