ascd/ascd/mixer_handlers.c

   1 /* ===========================================================================
   2  * AScd: mixer_handlers.c
   3  * mouse events <-> integrated commands with mixer module
   4  * ===========================================================================
   5  * Copyright (c) 1999 Denis Bourez and Rob Malda. All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *    This product includes software developed by Denis Bourez & Rob Malda
  19  * 4. Neither the name of the author nor the names of any co-contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY DENIS BOUREZ AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED. IN NO EVENT SHALL DENIS BOUREZ, ROB MALDA OR CONTRIBUTORS BE
  27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33  * POSSIBILITY OF SUCH DAMAGE.
  34  * ===========================================================================
  35  */
  36
  37 #include "ext.h"
  38
  39 #ifdef MIXER
  40
  41 int check_mixer()
  42 {
  43     int fd;
  44     if ((fd = open(mixer_device,0))) {
  45         close(fd);
  46     } else {
  47         return FALSE;
  48     }
  49     return TRUE;
  50 }
  51
  52 int getvol(int control)
  53 {
  54     int fd;
  55     int status = 0;
  56
  57     if (mixer_ok) {
  58         if ((fd = open(mixer_device,0))) {
  59             ioctl(fd, MIXER_READ(control), &mixer_vol);
  60             mixer_vol = mixer_vol >> 8;
  61             close(fd);
  62             return mixer_vol;
  63         }
  64     }
  65     return 0;
  66 }
  67
  68 void setvol(int control, int setto, int maximum)
  69 {
  70     int fd;
  71
  72     if (setto > maximum) setto = maximum;
  73     if (setto < 0) setto = 0;
  74
  75     if ((fd = open(mixer_device, 0))) {
  76         mixer_vol = ((float)setto / (float)maximum) * 100;
  77         mixer_old = mixer_vol << 8;
  78         mixer_vol = mixer_old | mixer_vol;
  79         ioctl(fd, MIXER_WRITE(control), &mixer_vol);
  80         close(fd);
  81     }
  82 }
  83
  84 void mixer_event_handle(int event, XEvent Event)
  85 {
  86     int value;
  87
  88     if (!mixer_ok) return;
  89
  90     switch (event) {
  91     case FAK_MIXER_SET:
  92         if ((thdata[but_current].xpm.attributes.width > 0) && (max_volume > 0)) {
  93             if (thdata[but_current].type == FAK_MIXER_BAR) {
  94                 value = (int)((float)(Event.xbutton.x - thdata[but_current].x) / (float)thdata[but_current].xpm.attributes.width * 100.0);
  95             } else if (thdata[but_current].type == FAK_VMIXER_BAR) {
  96                 value = (int)((float)(Event.xbutton.y - thdata[but_current].y) / (float)thdata[but_current].xpm.attributes.height * 100.0);
  97             } else {
  98                 value = (int)((float)(Event.xbutton.y - thdata[but_current].y) / (float)thdata[but_current].xpm.attributes.height * 100.0);
  99                 value = 100 - value;
 100             }
 101             setvol(thdata[but_current].arg, value, 100);
 102             redraw = TRUE;
 103             fak_redraw();
 104         }
 105         break;
 106     case FAK_MIXER_0:
 107         setvol(thdata[but_current].arg, 0, 100);
 108         redraw = TRUE;
 109         fak_redraw();
 110         break;
 111     case FAK_MIXER_50:
 112         setvol(thdata[but_current].arg, 50, 100);
 113         redraw = TRUE;
 114         fak_redraw();
 115         break;
 116     case FAK_MIXER_75:
 117         setvol(thdata[but_current].arg, 75, 100);
 118         redraw = TRUE;
 119         fak_redraw();
 120         break;
 121     case FAK_MIXER_100:
 122         setvol(thdata[but_current].arg, 100, 100);
 123         redraw = TRUE;
 124         fak_redraw();
 125         break;
 126     default:
 127         break;
 128     }
 129
 130     redraw = TRUE;
 131     fak_singlemask(but_current);
 132 }
 133
 134 #endif