From 51804c822aba850ad3d1589b4dc3dc2709d980f5 Mon Sep 17 00:00:00 2001
From: hackbard <hackbard>
Date: Sun, 16 May 2004 08:28:00 +0000
Subject: [PATCH] completely removed ncurses, added minimal audio functions

---
 src/Makefile  |   4 +-
 src/audio.c   | 106 ++++++++++++++++++++++++++++++++++++++++++++++++--
 src/audio.h   |  39 +++++++++++++++++--
 src/display.c |  11 +-----
 src/display.h |   1 -
 src/ivac.c    | 103 +++++++-----------------------------------------
 src/ivac.h    |   2 +
 7 files changed, 158 insertions(+), 108 deletions(-)

diff --git a/src/Makefile b/src/Makefile
index f3b4e06..22c8045 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -3,9 +3,9 @@
 INCLUDEDIR = /usr/include
 
 CFLAGS = -DDISPLAY -DDEBUG -O3 -Wall
-LIBS = -lncurses
+LIBS =
 
-OBJS = network.o event.o input.o display.o
+OBJS = network.o event.o input.o display.o audio.o
 
 ivac: $(OBJS)
 	$(CC) -o $@ $(OBJS) ivac.c $(LIBS)
diff --git a/src/audio.c b/src/audio.c
index bd47644..9c8ca4a 100644
--- a/src/audio.c
+++ b/src/audio.c
@@ -10,14 +10,114 @@ int audio_init(t_audio *audio) {
 
   puts("[audio] initializing audio ...");
 
-  if((audio->fd=open(audio->device,O_RDONLY))==-1) {
+  if((audio->dsp_fd=open(audio->dsp_dev,O_RDWR))==-1) {
     perror("[audio] open call");
     return A_ERROR;
   }
 
-  if(ioctl(audio->fd,SNDCTL_DSP_GETCAPS,&(audio->cap))==-1) {
+  if(ioctl(audio->dsp_fd,SNDCTL_DSP_GETCAPS,&(audio->dsp_cap))==-1) {
     perror("[audio] ioctl call");
     return A_ERROR;
   }
 
-  
+  if(!(audio->dsp_cap&DSP_CAP_DUPLEX)) {
+    puts("[audio] no duplex support");
+    return A_ERROR;
+  }
+
+  return A_SUCCESS;
+}
+
+int audio_setup(t_audio *audio) {
+
+  int tmp;
+
+  puts("[audio] setting up sound device & allocating record/playback buffer");
+
+  tmp=audio->fmt;
+  if(ioctl(audio->dsp_fd,SNDCTL_DSP_SETFMT,&tmp)==-1) {
+    perror("[audio] ioctl call (SNDCTL_DSP_SETFMT)");
+    return A_ERROR;
+  }
+  if(tmp!=audio->fmt) {
+    puts("[audio] FMT not supported");
+    return A_ERROR;
+  }
+
+  tmp=audio->speed;
+  if(ioctl(audio->dsp_fd,SNDCTL_DSP_SPEED,&tmp)==-1) {
+    perror("[audio] ioctl call (SNDCTL_DSP_SPEED)");
+    return A_ERROR;
+  }
+  if(tmp!=audio->speed) {
+    puts("[audio] SPEED not supported");
+    return A_ERROR;
+  }
+
+  if(ioctl(audio->dsp_fd,SNDCTL_DSP_GETBLKSIZE,&(audio->blksize))==-1) {
+    perror("[audio] ioctl call (SNDCTL_DSP_GETBLKSIZE)");
+    return A_ERROR;
+  }
+
+  if((audio->play_data=(unsigned char *)malloc(audio->blksize))==NULL) {
+    perror("[audio] malloc call");
+    return A_ERROR;
+  }
+  if((audio->rec_data=(unsigned char *)malloc(audio->blksize))==NULL) {
+    perror("[audio] malloc call");
+    return A_ERROR;
+  }
+
+  return A_SUCCESS;
+}
+
+int audio_shutdown(t_audio *audio) {
+
+  puts("[audio] shutdown");
+
+  free(audio->play_data);
+  free(audio->rec_data);
+
+  if(close(audio->dsp_fd)==-1) {
+    perror("[audio] close call");
+    return A_ERROR;
+  }
+
+  return A_SUCCESS;
+}
+
+int audio_play(t_audio *audio,int len) {
+
+  int count,left;
+
+  count=0;
+  left=len;
+
+  while(left) {
+    if((count=write(audio->dsp_fd,audio->play_data+len-left,left))==-1) {
+      perror("[audio] write call");
+      return A_ERROR;
+    }
+    left-=count;
+  }
+
+  return A_SUCCESS;
+}
+
+int audio_record(t_audio *audio,int len) {
+
+  int count,left;
+
+  count=0;
+  left=len;
+
+  while(left) {
+    if((count=read(audio->dsp_fd,audio->rec_data+len-left,left))==-1) {
+      perror("[audio] read call");
+      return A_ERROR;
+    }
+    left-=count;
+  }
+
+  return A_SUCCESS;
+}
diff --git a/src/audio.h b/src/audio.h
index b0c01db..33e90cb 100644
--- a/src/audio.h
+++ b/src/audio.h
@@ -4,17 +4,50 @@
 #define AUDIO_H
 
 /* includes */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
 #include <sys/soundcard.h>
 
 /* defines */
 #define MAX_CHAR_DEVICE 32
 #define SOUND_DEVICE "/dev/dsp"
 
+#define A_SUCCESS 1
+#define A_ERROR -1
+
+#define BIT_8 AFMT_U8
+#define BIT_16 AFMT_S16_LE
+#define MONO 1
+#define STEREO 2
+
 /* audio specific variables */
 typedef struct s_audio {
-  int fd;
-  char device[MAX_CHAR_DEVICE];
-  int cap;
+  int dsp_fd;
+  int mixer_fd;
+  char dsp_dev[MAX_CHAR_DEVICE];
+  char mixer_dev[MAX_CHAR_DEVICE];
+  int dsp_cap;
+  int fmt;
+  int channels;
+  int speed;
+  int blksize;
+  int mixer_cap;
+  unsigned char volume;
+  unsigned char *play_data;
+  unsigned char *rec_data;
 } t_audio;
 
+/* function prototypes */
+int audio_init(t_audio *audio);
+int audio_setup(t_audio *audio);
+int audio_shutdown(t_audio *audio);
+int audio_play(t_audio *audio,int len);
+int audio_record(t_audio *audio,int len);
+
 #endif
diff --git a/src/display.c b/src/display.c
index 9390fbc..914ab63 100644
--- a/src/display.c
+++ b/src/display.c
@@ -10,27 +10,18 @@ int display_init(t_display *display) {
 
   puts("[display] initializing display ...");
 
-  initscr();
-  raw();
-  noecho();
-  keypad(stdscr,TRUE);
-  getmaxyx(stdscr,display->max_y,display->max_x);
+  /* init stuff next .. */
 
   return D_SUCCESS;
 }
 
 int display_refresh(t_display *display) {
 
-  getmaxyx(stdscr,display->max_y,display->max_x);
-
   return D_SUCCESS;
 }
 
 int display_shutdown(t_display *display) {
 
-  noraw();
-  echo();
-
   puts("[display] shutdown");
 
   return D_SUCCESS;
diff --git a/src/display.h b/src/display.h
index 7ec779e..113e892 100644
--- a/src/display.h
+++ b/src/display.h
@@ -2,7 +2,6 @@
 
 /* includes */
 #include <stdio.h>
-#include <ncurses.h>
 
 /* defines */
 #define D_SUCCESS 1
diff --git a/src/ivac.c b/src/ivac.c
index e3e2060..98fc8c2 100644
--- a/src/ivac.c
+++ b/src/ivac.c
@@ -21,9 +21,7 @@
  *
  */
 
-// #define USE_NCURSES
-/* dont care about ncurses .. go for gtk(2)! */
-#define USE_GTK
+// #define USE_GTK
 
 #include "ivac.h"
 
@@ -36,6 +34,7 @@ int usage(void) {
   puts("-h \t\t show this help");
   puts("-n <name> \t specify your name");
   puts("-p <port> \t specify port to listen for incoming connections");
+  puts("-d <device> \t specify audio device");
   puts("");
 
   return SUCCESS;
@@ -51,6 +50,7 @@ int main(int argc,char **argv) {
   /* default values */
   strcpy(ivac.username,"ivac");
   ivac.net.l_port=IVAC_LISTEN_PORT;
+  strcpy(ivac.audio.dsp_dev,SOUND_DEVICE);
  
   /* parse argv and change default values */
   for(i=1;i<argc;i++) {
@@ -65,6 +65,9 @@ int main(int argc,char **argv) {
         case 'p':
           ivac.net.l_port=atoi(argv[++i]);
           break;
+        case 'd':
+          strncpy(ivac.audio.dsp_dev,argv[++i],MAX_CHAR_DEVICE);
+          break;
         default:
           usage();
           return ERROR;
@@ -106,10 +109,15 @@ int main(int argc,char **argv) {
   event_math(ivac.net.l_fd,&(ivac.event),READ,ADD);
   event_math(0,&(ivac.event),READ,ADD);
 
-#ifdef USE_NCURSES
   /* display init */
   display_init(&(ivac.display));
-#endif
+
+  /* use hardcoded audio settings by now */
+  ivac.audio.fmt=BIT_8;
+  ivac.audio.channels=MONO;
+  ivac.audio.speed=8000;
+  /* audio init */
+  audio_init(&(ivac.audio));
 
   /* display */
   ivac_display(&(ivac.display));
@@ -125,9 +133,8 @@ int ivac_shutdown(t_ivac *ivac) {
   network_shutdown(&(ivac->net));
   input_shutdown(&(ivac->input));
   event_stop(&(ivac->event));
-#ifdef USE_NCURSES
+  audio_shutdown(&(ivac->audio));
   display_shutdown(&(ivac->display));
-#endif
 
   return SUCCESS;
 }
@@ -448,37 +455,15 @@ int ivac_parse_command(t_input *input,void *ptr) {
 
 int ivac_display_head(t_display *display) {
 
-#ifdef USE_NCURSES
-  int x,y;
-
-  move(0,0);
-  for(x=0;x<display->max_x;x++) addch('#');
-  mvaddstr(1,0,"##");
-  mvaddstr(1,(display->max_x-4)/2-4,"- ivac -");
-  mvaddstr(1,(display->max_x-2),"##");
-  move(2,0);
-  for(x=0;x<display->max_x;x++) addch('#');
-  refresh();
-#else
   puts("#########################################################");
   puts("##### ivac - -  Copyright (C) 2004 Frank Zirkelbach #####");
   puts("#########################################################");
-#endif
 
   return SUCCESS;
 }
 
 int ivac_display_box(t_display *display) {
  
-#ifdef USE_NCURSES 
-  int x,y;
-
-  for(y=IVAC_PROMPT_LEN;y<display->max_y-IVAC_PROMPT_LEN;y++) {
-    mvaddch(y,0,'#');
-    mvaddch(y,display->max_x-1,'#');
-  }
-#endif
-
   return SUCCESS;
 }
 
@@ -491,93 +476,33 @@ int ivac_display_box_content(t_ivac *ivac) {
     if(ivac->challenger[channel].name[0]==0)
       strcpy(ivac->challenger[channel].name,"<empty>");
 
-#ifdef USE_NCURSES
-#else
-  for(channel=0;channel<MAX_CONNECTIONS;channel++) {
-    if(ivac->net.connection[channel].status&C_INFO_A)
-      printf("channel %02d: ip:%s port:%d status: %02x - name: %s\n",channel,
-             ivac->net.connection[channel].ip,
-             ivac->net.connection[channel].port,
-             ivac->net.connection[channel].status,
-             ivac->challenger[channel].name);
-  }
-#endif
-
   return SUCCESS;
 }
 
 int ivac_display_console(t_display *display) {
 
-#ifdef USE_NCURSES                                             
-  int x,y;
-         
-  move(display->max_y-IVAC_CONSOLE_LEN-IVAC_PROMPT_LEN-1,0);
-  for(x=0;x<display->max_x;x++) addch('#');
-#endif
-                                          
   return SUCCESS;
 }
 
 int ivac_display_console_content(t_ivac *ivac) {
 
-#ifdef USE_NCURSES
-  int x,y;
-  int len;
-
-  for(y=0;y<IVAC_CONSOLE_LEN;y++) {
-    len=strlen(ivac->console[y]);
-    move(ivac->display.max_y-IVAC_CONSOLE_LEN-IVAC_PROMPT_LEN+y,2);
-    for(x=0;x<len;x++)
-       addch(((ivac->console[y][x]>' ')||(ivac->console[y][x]<='~'))
-               ?ivac->console[y][x]:' ');
-    for(x=len;x<IVAC_CONSOLE_STRING_LEN-4;x++) addch(' ');
-  }
-  refresh();
-#else
   int i;
 
   for(i=0;i<IVAC_CONSOLE_LEN;i++)
     printf("[ivac] console line %d: %s\n",i,ivac->console[i]);
-#endif
 
   return SUCCESS;
 }
 
 int ivac_display_prompt(t_display *display) {
 
-#ifdef USE_NCURSES
-  int x,y;
-
-  move(display->max_y-3,0);
-  for(x=0;x<display->max_x;x++) addch('#');
-  mvaddstr(display->max_y-2,0,"## command: ");
-  mvaddstr(display->max_y-2,display->max_x-2,"##");
-  move(display->max_y-1,0);
-  for(x=0;x<display->max_x;x++) addch('#');
-  refresh();
-#endif
-
   return SUCCESS;
 }
 
 int ivac_display_prompt_content(t_ivac *ivac) {
 
-#ifdef USE_NCURSES
-  int x,y;
-
-  /* delete old command */
-  if(ivac->input.c_count==0) {
-    move(ivac->display.max_y-2,12);
-    for(x=12;x<ivac->display.max_x-1;x++) addch(' ');
-  }
-
-  for(x=0;x<ivac->input.c_count;x++)
-    mvaddch(ivac->display.max_y-2,x+12,ivac->input.content[x]);
-  refresh();
-#else
   printf("%c",ivac->input.content[ivac->input.c_count-1]);
   fflush(NULL);
-#endif
 
   return SUCCESS;
 }
diff --git a/src/ivac.h b/src/ivac.h
index af64d04..7acb2e6 100644
--- a/src/ivac.h
+++ b/src/ivac.h
@@ -14,6 +14,7 @@
 #include "event.h"
 #include "input.h"
 #include "display.h"
+#include "audio.h"
 
 /* defines */
 #define CHAR_USERNAME 32
@@ -62,6 +63,7 @@ typedef struct s_ivac {
   t_display display;
   t_challenger challenger[MAX_CONNECTIONS];
   char console[IVAC_CONSOLE_LEN][IVAC_CONSOLE_STRING_LEN];
+  t_audio audio;
 } t_ivac;
 
 /* function prototypes */
-- 
2.39.2