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/*
* scanout.c
*
* Copyright © 2019 Thomas White <taw@bitwiz.me.uk>
*
* This file is part of NanoLight.
*
* NanoLight 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 3 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <libsoup/soup.h>
#include "nanolight.h"
static void set_val(int *dmx, int base_addr, int attr_offset, float value, int sixteenbit)
{
/* Minus one to convert DMX address to indexing in 'dmx' array */
int pos = base_addr + attr_offset - 1;
if ( sixteenbit ) {
int val = value * 65535;
dmx[pos] = (val & 0xff00) >> 8;
dmx[pos+1] = val & 0xff;
} else {
dmx[pos] = value * 255;
}
}
static void set_prism(int *dmx, struct fixture *fix, int prism)
{
int i;
if ( prism > fix->cls->n_prisms ) return;
for ( i=0; i<fix->cls->n_prism_chans; i++ ) {
int idx = fix->cls->n_prism_chans * prism + i;
int chan = fix->cls->prism_chans[i];
dmx[fix->base_addr+chan-1] = fix->cls->prism_vals[idx] & 0xff;
}
if ( fix->cls->prism_flags[prism] & PRISM_ROTATE ) {
float rotate_val;
rotate_val = (fix->prism_rotate + 1.0)/2.0;
set_val(dmx, fix->base_addr, fix->cls->prism_rotate_offset, rotate_val, 0);
}
if ( fix->cls->prism_flags[prism] & PRISM_SPIN ) {
float rotate_val;
rotate_val = (fix->prism_spin + 1.0)/2.0;
set_val(dmx, fix->base_addr, fix->cls->prism_spin_offset, rotate_val, 0);
}
}
static void set_gobo(int *dmx, struct fixture *fix, int gobo)
{
int i;
if ( gobo > fix->cls->n_gobos ) return;
for ( i=0; i<fix->cls->n_gobo_chans; i++ ) {
int idx = fix->cls->n_gobo_chans * gobo + i;
int chan = fix->cls->gobo_chans[i];
dmx[fix->base_addr+chan-1] = fix->cls->gobo_vals[idx] & 0xff;
}
if ( fix->cls->gobo_flags[gobo] & GOBO_ROTATE ) {
float rotate_val;
rotate_val = (fix->gobo_rotate + 1.0)/2.0;
set_val(dmx, fix->base_addr, fix->cls->gobo_rotate_offset, rotate_val, 0);
}
if ( fix->cls->gobo_flags[gobo] & GOBO_SPIN ) {
float rotate_val;
rotate_val = (fix->gobo_spin + 1.0)/2.0;
set_val(dmx, fix->base_addr, fix->cls->gobo_spin_offset, rotate_val, 0);
}
}
int scanout_all(struct nanolight *nl)
{
SoupSession *sess;
SoupMessage *msg;
int i;
int dmx[512];
char str[8200];
signed int universe = -1;
/* Start from zero */
for ( i=0; i<512; i++ ) dmx[i] = 0;
/* Loop over fixtures and set values */
for ( i=0; i<nl->n_fixtures; i++ ) {
int j;
struct fixture *fix = &nl->fixtures[i];
struct fixture_class *cls = fix->cls;
if ( universe < 0 ) universe = fix->universe;
if ( fix->universe != universe ) {
fprintf(stderr, "Sorry, only one universe for now!\n");
abort();
}
for ( j=0; j<cls->n_magic; j++ ) {
dmx[fix->base_addr + cls->magic_chans[j] - 1] = cls->magic_vals[j];
}
if ( cls->attributes & INTENSITY ) {
set_val(dmx, fix->base_addr, cls->intensity_offset, fix->intensity,
cls->attributes16 & INTENSITY);
}
if ( cls->attributes & PANTILT ) {
float pan_val, tilt_val;
pan_val = (fix->pan + 1.0)/2.0;
tilt_val = (fix->tilt + 1.0)/2.0;
set_val(dmx, fix->base_addr, cls->pan_offset, pan_val,
cls->attributes16 & PANTILT);
set_val(dmx, fix->base_addr, cls->tilt_offset, tilt_val,
cls->attributes16 & PANTILT);
}
if ( (cls->attributes & COLOUR) && (cls->properties & COL_CMY) ) {
set_val(dmx, fix->base_addr, cls->cyan_offset, fix->cyan,
cls->attributes16 & COL_CMY);
set_val(dmx, fix->base_addr, cls->magenta_offset, fix->magenta,
cls->attributes16 & COL_CMY);
set_val(dmx, fix->base_addr, cls->yellow_offset, fix->yellow,
cls->attributes16 & COL_CMY);
}
if ( (cls->attributes & COLOUR) && (cls->properties & COL_RGB) ) {
set_val(dmx, fix->base_addr, cls->red_offset, fix->red,
cls->attributes16 & COL_RGB);
set_val(dmx, fix->base_addr, cls->green_offset, fix->green,
cls->attributes16 & COL_RGB);
set_val(dmx, fix->base_addr, cls->blue_offset, fix->blue,
cls->attributes16 & COL_RGB);
}
if ( cls->attributes & FOCUS ) {
set_val(dmx, fix->base_addr, cls->focus_offset, fix->focus,
cls->attributes16 & FOCUS);
}
if ( cls->attributes & ZOOM ) {
set_val(dmx, fix->base_addr, cls->zoom_offset, fix->zoom,
cls->attributes16 & ZOOM);
}
if ( cls->attributes & FROST ) {
set_val(dmx, fix->base_addr, cls->frost_offset, fix->frost,
cls->attributes16 & FROST);
}
if ( cls->attributes & IRIS ) {
set_val(dmx, fix->base_addr, cls->iris_offset, fix->iris,
cls->attributes16 & IRIS);
}
if ( cls->attributes & GOBO ) {
set_gobo(dmx, fix, fix->gobo);
}
if ( cls->attributes & PRISM ) {
set_prism(dmx, fix, fix->prism);
}
}
if ( universe == -1 ) return 0; /* Nothing to do! */
/* Loop over DMX channels and prepare request */
snprintf(str, 16, "u=%i&d=", universe);
for ( i=0; i<512; i++ ) {
char tmp[6];
snprintf(tmp, 5, "%i,", dmx[i]);
strcat(str, tmp);
}
/* Send request to OLA */
sess = soup_session_new();
msg = soup_message_new("POST", "http://127.0.0.1:9090/set_dmx");
soup_message_set_request(msg, "application/x-www-form-urlencoded",
SOUP_MEMORY_TEMPORARY, str, strlen(str));
soup_session_send_message(sess, msg);
g_object_unref(msg);
g_object_unref(sess);
return 0;
}
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