maxmspjit

Hi, how does one go about dumping a texture out the left outlet of a 

jit.gl object, similar to the way jit.gl.slab works? I've got an 

internal texture object allocated, and I can grab and use the texture 

name via an out_texture attribute, but using the outlet as well seems 

Hi, how does one go about dumping a texture out the left outlet of a  
jit.gl object, similar to the way jit.gl.slab works? I've got an  
internal texture object allocated, and I can grab and use the texture  
name via an out_texture attribute, but using the outlet as well seems  
like it would be a nice convenience.

texture-output-from-jit-gl-object

You would do this from the max wrapper. When your object gets a

message, in its inlet, it should tell the wrapped jitter object to do

anything it needs to do. When that's done, the max wrapper then grabs

the texture name from the jitter object and shoots it out an outlet

> Hi, how does one go about dumping a texture out the left outlet of a

> jit.gl object, similar to the way jit.gl.slab works? I've got an

> internal texture object allocated, and I can grab and use the texture

> name via an out_texture attribute, but using the outlet as well seems

You would do this from the max wrapper.  When your object gets a
message, in its inlet, it should tell the wrapped jitter object to do
anything it needs to do.  When that's done, the max wrapper then grabs
the texture name from the jitter object and shoots it out an outlet
just like any other message.

On 10/4/07, Ritchie Argue  wrote:
> Hi, how does one go about dumping a texture out the left outlet of a
> jit.gl object, similar to the way jit.gl.slab works? I've got an
> internal texture object allocated, and I can grab and use the texture
> name via an out_texture attribute, but using the outlet as well seems
> like it would be a nice convenience.
>
> Best,
>
> r.
>


On Oct 4, 2007, at 11:52 AM, Ritchie Argue wrote:

> Hi, how does one go about dumping a texture out the left outlet of 

> a jit.gl object, similar to the way jit.gl.slab works? I've got an 

> internal texture object allocated, and I can grab and use the 

> texture name via an out_texture attribute, but using the outlet as 

> well seems like it would be a nice convenience.

Relevant excerpts from jit.gl.texture's max wrapper, which does this.

void max_jit_gl_texture_bang(t_max_jit_gl_texture *x)

    typedmess((t_object *)x,ps_draw,0,NULL);

void max_jit_gl_texture_draw(t_max_jit_gl_texture *x, t_symbol *s, 

    t_jit_object *jitob = (t_jit_object*)max_jit_obex_jitob_get(x);

    if (s == ps_jit_gl_texture)    

        outlet_anything(x->texout, s, argc, argv);

        // query the texture name and send out the texture output

        jit_atom_setsym(&a, jit_attr_getsym(jitob, _jit_sym_name));

        outlet_anything(x->texout, ps_jit_gl_texture, 1, &a);

void max_jit_gl_texture_input_message(t_max_jit_gl_texture *x, 

    // call the jitter object's jit_matrix or jit_gl_texture method

    jit_object_method(jitob,s,s,argc,argv);

    if (( s == ps_jit_gl_texture || x->thru))

        max_jit_gl_texture_draw(x,ps_draw,0,NULL);

void *max_jit_gl_texture_new(t_symbol *s, long argc, t_atom *argv)

    t_symbol *dest_name_sym = _jit_sym_nothing;

    if (x = (t_max_jit_gl_texture *)max_jit_obex_new 

(max_jit_gl_texture_class, gensym("jit_gl_texture")))

        attrstart = max_jit_attr_args_offset(argc,argv);

            jit_atom_arg_getsym(&dest_name_sym, 0, attrstart, argv);

        if (jit_ob = jit_object_new(gensym("jit_gl_texture"), dest_name_sym))

            max_jit_obex_jitob_set(x, jit_ob);

            max_jit_obex_dumpout_set(x, outlet_new(x,NULL));

            max_jit_attr_args(x, argc, argv);        

            // attach the jit object's ob3d to a new outlet for sending 

            x->texout = outlet_new(x, "jit_gl_texture");

            // max_jit_ob3d_attach(x, jit_ob, outlet_new(x, "jit_matrix"));

            error("jit.gl.texture: could not allocate object");

            freeobject((t_object *)x);

> Hi, how does one go about dumping a texture out the left outlet of  
> a jit.gl object, similar to the way jit.gl.slab works? I've got an  
> internal texture object allocated, and I can grab and use the  
> texture name via an out_texture attribute, but using the outlet as  
> well seems like it would be a nice convenience.

void max_jit_gl_texture_bang(t_max_jit_gl_texture *x)
{
	typedmess((t_object *)x,ps_draw,0,NULL);
}

void max_jit_gl_texture_draw(t_max_jit_gl_texture *x, t_symbol *s,  
long argc, t_atom *argv)
{
	t_atom a;

	// get the jitter object
	t_jit_object *jitob = (t_jit_object*)max_jit_obex_jitob_get(x);

	if (s == ps_jit_gl_texture)	
		outlet_anything(x->texout, s, argc, argv);
	else {
		// query the texture name and send out the texture output
		jit_atom_setsym(&a, jit_attr_getsym(jitob, _jit_sym_name));
		outlet_anything(x->texout, ps_jit_gl_texture, 1, &a);
	}
}

void max_jit_gl_texture_input_message(t_max_jit_gl_texture *x,  
t_symbol *s, long argc, t_atom *argv)
{
	long inlet;

	// call the jitter object's jit_matrix or jit_gl_texture method
	jit_object_method(jitob,s,s,argc,argv);

	if (( s == ps_jit_gl_texture || x->thru))
		max_jit_gl_texture_draw(x,ps_draw,0,NULL);
}

void *max_jit_gl_texture_new(t_symbol *s, long argc, t_atom *argv)
{
	t_max_jit_gl_texture *x;
	void *jit_ob;
	long attrstart;
	t_symbol *dest_name_sym = _jit_sym_nothing;

	if (x = (t_max_jit_gl_texture *)max_jit_obex_new 
(max_jit_gl_texture_class, gensym("jit_gl_texture")))
	{
		//get normal args
		attrstart = max_jit_attr_args_offset(argc,argv);
		if (attrstart&&argv)
		{
			jit_atom_arg_getsym(&dest_name_sym, 0, attrstart, argv);
		}

		if (jit_ob = jit_object_new(gensym("jit_gl_texture"), dest_name_sym))
		{
			max_jit_obex_jitob_set(x, jit_ob);
			max_jit_obex_dumpout_set(x, outlet_new(x,NULL));
			max_jit_attr_args(x, argc, argv);		

			// attach the jit object's ob3d to a new outlet for sending  
drawing messages.	
			x->texout = outlet_new(x, "jit_gl_texture");
			// max_jit_ob3d_attach(x, jit_ob, outlet_new(x, "jit_matrix"));
			x->thru = 1;
		}
		else
		{
			error("jit.gl.texture: could not allocate object");
			freeobject((t_object *)x);
			x = NULL;
		}
	}
	return (x);
}


Moved this topic to the jitter-dev forum


texture output from jit.gl object