1.1 --- a/sanegl.js	Thu Jun 16 07:13:20 2011 +0300
     1.2 +++ b/sanegl.js	Sat Jun 18 05:13:01 2011 +0300
     1.3 @@ -31,8 +31,7 @@
     1.4  		[new Float32Array(gl_ident_val)],
     1.5  		[new Float32Array(gl_ident_val)]);
     1.6  
     1.7 -/* XXX change after debugging */
     1.8 -const GL_MAX_VERTS = 32;
     1.9 +const GL_MAX_VERTS = 512;
    1.10  
    1.11  var gl_prim = 0;
    1.12  var gl_vbuf = null, gl_nbuf = null, gl_cbuf = null, gl_tbuf = null;
    1.13 @@ -156,6 +155,12 @@
    1.14  	glMultMatrixf(xform);
    1.15  }
    1.16  
    1.17 +function gluPerspective(vfov, aspect, near, far)
    1.18 +{
    1.19 +	var x = near * Math.tan(vfov / 2.0);
    1.20 +	glFrustum(-aspect * x, aspect * x, -x, x, near, far);
    1.21 +}
    1.22 +
    1.23  function gl_apply_xform(prog)
    1.24  {
    1.25  	var mvtop = gl_mat[GL_MODELVIEW].length - 1;
    1.26 @@ -383,7 +388,17 @@
    1.27  	}
    1.28  
    1.29  	gl_vert_calls++;
    1.30 -	if(++gl_nverts >= GL_MAX_VERTS) {
    1.31 +	gl_nverts++;
    1.32 +
    1.33 +	var buffer_full;
    1.34 +	if(gl_prim == GL_QUADS) {
    1.35 +		/* leave space for 6 more worst-case and don't allow flushes mid-quad */
    1.36 +		buffer_full = gl_nverts >= GL_MAX_VERTS - 6 && gl_vert_calls % 4 == 0;
    1.37 +	} else {
    1.38 +		buffer_full = gl_nverts >= GL_MAX_VERTS - gl_prim;
    1.39 +	}
    1.40 +
    1.41 +	if(buffer_full) {
    1.42  		gl_draw_immediate();
    1.43  		glBegin(gl_prim);	/* reset everything */
    1.44  	}