CopperLicht:: draw2DOval, draw2DLine

CL3D.Renderer.prototype.draw2DOval = function (j, h, a, o, b, e) {

    if (a <= 0 || o <= 0 || this.width == 0 || this.height == 0) {
        return
    }
    var m = true;
    if (e == null || e == false) {
        m = false
    }

    var s = Math.abs(a / 2) + Math.abs(o / 2);
    s = Math.max(s, 12) & ~3;

    var d = this.gl;
    d.enableVertexAttribArray(0);
    d.disableVertexAttribArray(1);
    d.disableVertexAttribArray(2);
    d.disableVertexAttribArray(3);
    d.disableVertexAttribArray(4);
    h = this.height - h;
    var n = 2 / this.width;
    var l = 2 / this.height;
    j = (j * n) - 1;
    h = (h * l) - 1;
    a *= n;
    o *= l;

    var rx = a / 2;
    var ry = o / 2;
    j += rx;
    h -= ry;

    var g = new WebGLFloatArray( (s+1) * 3 + 3 );
    var k = new WebGLUnsignedShortArray(s * 3);
    var i = s * 3;

    g[0] = j;
    g[1] = h;
    g[2] = 0;
    var gix=1;
    for (var ic=0; ic<=s; ic++) {
        var ang = (ic * 360.0 / s)
        var dx = Math.cos(ang * 0.0175) * rx + j;
        var dy = Math.sin(ang * 0.0175) * ry + h;
        g[gix*3+0]=dx;
        g[gix*3+1]=dy;
        g[gix*3+2]=0;
        gix++;
    }

    gix=0;
    for (var ic=0; ic<s; ic++) {
        k[gix*3+0]=0;
        k[gix*3+1]=ic+1;
        k[gix*3+2]=ic+2;
        gix++;
    }

    var f = d.createBuffer();
    d.bindBuffer(d.ARRAY_BUFFER, f);
    d.bufferData(d.ARRAY_BUFFER, g, d.STATIC_DRAW);
    d.vertexAttribPointer(0, 3, d.FLOAT, false, 0, 0);
    var c = d.createBuffer();
    d.bindBuffer(d.ELEMENT_ARRAY_BUFFER, c);
    d.bufferData(d.ELEMENT_ARRAY_BUFFER, k, d.STATIC_DRAW);
    this.currentGLProgram = this.Program2DDrawingColorOnly;
    d.useProgram(this.currentGLProgram);
    d.uniform4f(d.getUniformLocation(this.currentGLProgram, "vColor"), CL3D.getRed(b) / 255, CL3D.getGreen(b) / 255, CL3D.getBlue(b) / 255, m ? (CL3D.getAlpha(b) / 255) : 1);
    d.depthMask(false);
    d.disable(d.DEPTH_TEST);
    if (!m) {
        d.disable(d.BLEND)
    } else {
        d.enable(d.BLEND);
        d.blendFunc(d.SRC_ALPHA, d.ONE_MINUS_SRC_ALPHA)
    }
    d.drawElements(d.TRIANGLES, i, d.UNSIGNED_SHORT, 0);
    d.deleteBuffer(f);
    d.deleteBuffer(c)
};

CL3D.Renderer.prototype.draw2DLine = function (j, h, a, o, b, e) {

    if (this.width == 0 || this.height == 0) {
        return
    }
    var m = true;
    if (e == null || e == false) {
        m = false
    }

    var d = this.gl;
    d.enableVertexAttribArray(0);
    d.disableVertexAttribArray(1);
    d.disableVertexAttribArray(2);
    d.disableVertexAttribArray(3);
    d.disableVertexAttribArray(4);
    h = this.height - h;
    o = this.height - o;
    var n = 2 / this.width;
    var l = 2 / this.height;
    j = (j * n) - 1;
    h = (h * l) - 1;
    a = (a * n) - 1;
    o = (o * l) - 1;

    var g = new WebGLFloatArray( 6 );
    var k = new WebGLUnsignedShortArray(2);
    var i = 2;

    g[0] = j;
    g[1] = h;
    g[2] = 0;
    g[3] = a;
    g[4] = o;
    g[5] = 0;

    k[0] = 0;
    k[1] = 1;

    var f = d.createBuffer();
    d.bindBuffer(d.ARRAY_BUFFER, f);
    d.bufferData(d.ARRAY_BUFFER, g, d.STATIC_DRAW);
    d.vertexAttribPointer(0, 3, d.FLOAT, false, 0, 0);
    var c = d.createBuffer();
    d.bindBuffer(d.ELEMENT_ARRAY_BUFFER, c);
    d.bufferData(d.ELEMENT_ARRAY_BUFFER, k, d.STATIC_DRAW);
    this.currentGLProgram = this.Program2DDrawingColorOnly;
    d.useProgram(this.currentGLProgram);
    d.uniform4f(d.getUniformLocation(this.currentGLProgram, "vColor"), CL3D.getRed(b) / 255, CL3D.getGreen(b) / 255, CL3D.getBlue(b) / 255, m ? (CL3D.getAlpha(b) / 255) : 1);
    d.depthMask(false);
    d.disable(d.DEPTH_TEST);
    if (!m) {
        d.disable(d.BLEND)
    } else {
        d.enable(d.BLEND);
        d.blendFunc(d.SRC_ALPHA, d.ONE_MINUS_SRC_ALPHA)
    }
    d.drawElements(d.LINES, i, d.UNSIGNED_SHORT, 0);
    d.deleteBuffer(f);
    d.deleteBuffer(c)
};