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/* --------------------------------------------------------------------------*/
/* */
/* control the iodisplay of the display on Apple Mac OS X */
/* Written by Hans-Christoph Steiner <hans@at.or.at> */
/* */
/* Copyright (c) 2008 Free Software Foundation */
/* */
/* This program is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version 2 */
/* of the License, or (at your option) any later version. */
/* */
/* See file LICENSE for further informations on licensing terms. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software Foundation, */
/* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */
/* */
/* --------------------------------------------------------------------------*/
#include <IOKit/graphics/IOGraphicsLib.h>
#include <ApplicationServices/ApplicationServices.h>
#include <m_pd.h>
#define DEBUG(x)
//#define DEBUG(x) x
/*------------------------------------------------------------------------------
* CLASS DEF
*/
static t_class *iodisplay_class;
typedef struct _iodisplay {
t_object x_obj;
t_float parameter_value;
io_service_t io_service;
CGDirectDisplayID target_display;
t_symbol* parameter;
} t_iodisplay;
/*------------------------------------------------------------------------------
* IMPLEMENTATION
*/
static void iodisplay_output(t_iodisplay* x)
{
DEBUG(post("iodisplay_output"););
CFStringRef cfs_parameter;
CGDisplayErr err;
t_atom output_atom;
cfs_parameter = CFStringCreateWithCString(kCFAllocatorDefault,
x->parameter->s_name,
kCFStringEncodingASCII);
err = IODisplayGetFloatParameter(x->io_service, kNilOptions,
cfs_parameter, &(x->parameter_value));
if (err != kIOReturnSuccess)
pd_error(x,"[iodisplay]: couldn't get %s value", x->parameter->s_name);
SETFLOAT(&output_atom, x->parameter_value);
outlet_anything(x->x_obj.ob_outlet, x->parameter, 1, &output_atom);
}
static void iodisplay_float(t_iodisplay* x, t_float f)
{
DEBUG(post("iodisplay_float"););
CFStringRef cfs_parameter;
CGDisplayErr err;
if (f < 0.) x->parameter_value = 0.;
else if (f > 1.) x->parameter_value = 1.;
else x->parameter_value = f;
cfs_parameter = CFStringCreateWithCString(kCFAllocatorDefault,
x->parameter->s_name,
kCFStringEncodingASCII);
err = IODisplaySetFloatParameter(x->io_service, kNilOptions,
cfs_parameter, x->parameter_value);
if (err != kIOReturnSuccess)
pd_error(x,"[iodisplay]: couldn't set %s", x->parameter->s_name);
}
static void iodisplay_free(t_iodisplay* x)
{
DEBUG(post("iodisplay_free"););
}
static void *iodisplay_new(t_symbol *s)
{
DEBUG(post("iodisplay_new"););
t_iodisplay *x = (t_iodisplay *)pd_new(iodisplay_class);
x->target_display = CGMainDisplayID();
x->io_service = CGDisplayIOServicePort(x->target_display);
x->parameter = s;
symbolinlet_new(&x->x_obj, &x->parameter);
outlet_new(&x->x_obj, &s_anything);
return (x);
}
void iodisplay_setup(void)
{
iodisplay_class = class_new(gensym("iodisplay"),
(t_newmethod)iodisplay_new,
(t_method)iodisplay_free,
sizeof(t_iodisplay),
CLASS_DEFAULT,
A_DEFSYMBOL, 0);
/* add inlet datatype methods */
class_addbang(iodisplay_class,(t_method) iodisplay_output);
class_addfloat(iodisplay_class,(t_method) iodisplay_float);
}
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