/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2018 Photon Storm Ltd.
 * @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
 */

var Utils = require('../../../renderer/webgl/Utils');

/**
 * Renders this Game Object with the WebGL Renderer to the given Camera.
 * The object will not render if any of its renderFlags are set or it is being actively filtered out by the Camera.
 * This method should not be called directly. It is a utility function of the Render module.
 *
 * @method Phaser.GameObjects.Text#renderWebGL
 * @since 3.0.0
 * @private
 *
 * @param {Phaser.Renderer.WebGL.WebGLRenderer} renderer - A reference to the current active WebGL renderer.
 * @param {Phaser.GameObjects.Text} src - The Game Object being rendered in this call.
 * @param {number} interpolationPercentage - Reserved for future use and custom pipelines.
 * @param {Phaser.Cameras.Scene2D.Camera} camera - The Camera that is rendering the Game Object.
 * @param {Phaser.GameObjects.Components.TransformMatrix} parentMatrix - This transform matrix is defined if the game object is nested
 */
var TextWebGLRenderer = function (renderer, src, interpolationPercentage, camera, parentMatrix)
{
    if (src.text === '')
    {
        return;
    }
    
    if (src.dirty)
    {
        src.canvasTexture = renderer.canvasToTexture(src.canvas, src.canvasTexture);
        src.dirty = false;
    }

    var getTint = Utils.getTintAppendFloatAlpha;

    this.pipeline.batchTexture(
        src,
        src.canvasTexture,
        src.canvasTexture.width, src.canvasTexture.height,
        src.x, src.y,
        src.canvasTexture.width / src.style.resolution, src.canvasTexture.height / src.style.resolution,
        src.scaleX, src.scaleY,
        src.rotation,
        src.flipX, src.flipY,
        src.scrollFactorX, src.scrollFactorY,
        src.displayOriginX, src.displayOriginY,
        0, 0, src.canvasTexture.width, src.canvasTexture.height,
        getTint(src._tintTL, camera.alpha * src._alphaTL),
        getTint(src._tintTR, camera.alpha * src._alphaTR),
        getTint(src._tintBL, camera.alpha * src._alphaBL),
        getTint(src._tintBR, camera.alpha * src._alphaBR),
        (src._isTinted && src.tintFill),
        0, 0,
        camera,
        parentMatrix
    );
};

module.exports = TextWebGLRenderer;