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modesub.c
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modesub.c
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// Copyright (c) <2012> <Leif Asbrink>
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify,
// merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
// OR OTHER DEALINGS IN THE SOFTWARE.
#ifdef _MSC_VER
#include <sys/types.h>
#endif
#include <ctype.h>
#include <string.h>
#include "globdef.h"
#include "uidef.h"
#include "fft1def.h"
#include "fft2def.h"
#include "fft3def.h"
#include "seldef.h"
#include "sigdef.h"
#include "screendef.h"
#include "vernr.h"
#include "thrdef.h"
#include "keyboard_def.h"
#include "blnkdef.h"
#include "caldef.h"
#include "txdef.h"
#include "options.h"
#include "padef.h"
#include "sdrdef.h"
#include "hwaredef.h"
#if(OSNUM == OSNUM_WINDOWS)
#include <windows.h>
#include <winsock.h>
#include "wscreen.h"
#define INVSOCK INVALID_SOCKET
HANDLE savefile_handle;
#endif
#if(OSNUM == OSNUM_LINUX)
#include "lscreen.h"
#define INVSOCK -1
#define WORD unsigned short int
#define DWORD u_int32_t
typedef struct _SYSTEMTIME {
WORD wYear;
WORD wMonth;
WORD wDayOfWeek;
WORD wDay;
WORD wHour;
WORD wMinute;
WORD wSecond;
WORD wMilliseconds;
} SYSTEMTIME;
#endif
// Define fseeko and ftello. Some old distributions, e.g. RedHat 9
// have the functions but not in the headers.
#ifndef fseeko
int fseeko(FILE *stream, off_t offset, int whence);
#endif
#ifndef ftello
off_t ftello(FILE *stream);
#endif
#define REMEMBER_UNKNOWN -1
#define REMEMBER_NOTHING -2
int remember_proprietery_chunk[2];
#define MAX_FILES 256
#define MAX_NAMLEN 70
#define DISKSAVE_X_SIZE 48*text_width
#define DISKSAVE_Y_SIZE 7*text_height
#define DISKSAVE_SCREEN_SIZE (DISKSAVE_X_SIZE*DISKSAVE_Y_SIZE)
#define DEBMEM 64
typedef struct rcvr_hdr {
char chunkID[4]; // ="rcvr" (chunk perseus beta0.2)
uint32_t chunkSize; // chunk length
uint32_t nCenterFrequencyHz; // center frequency
uint32_t SamplingRateIdx; // 0=125K, 1=250K, 2=500K, 3=1M, 4=2M
time_t timeStart; // start time of the recording (time(&timeStart))
unsigned short wAttenId; // 0=0dB, 1=10dB, 2=20dB, 3=30dB
char bAdcPresel; // 0=Presel Off, 1=Presel On
char bAdcPreamp; // 0=ADC Preamp Off, 1=ADC Preamp ON
char bAdcDither; // 0=ADC Dither Off, 1=ADC Dither ON
char bSpare; // for future use (default = 0)
char rsrvd[16]; // for future use (default = 000..0)
char extra[16]; // QS1R and others may use longer chunks
} RCVR;
void write_wav_header(int begin);
int open_savefile(char *s);
fpos_t wav_wrpos;
int sel_parm;
int sel_line;
void init_os_independent_globals(void)
{
int i;
wg_waterf_zero_time=0;
keyboard_buffer_ptr=0;
keyboard_buffer_used=0;
mouse_flag=0;
lbutton_state=0;
rbutton_state=0;
new_lbutton_state=0;
new_rbutton_state=0;
// Make sure we know that no memory space is reserved yet.
wg_waterf=NULL;
bg_waterf=NULL;
fft3_handle=NULL;
hires_handle=NULL;
fft1_handle=NULL;
blanker_handle=NULL;
baseband_handle=NULL;
afc_handle=NULL;
calmem_handle=NULL;
txmem_handle=NULL;
vga_font=NULL;
dx=NULL;
// and that analog io is closed
rx_audio_in=-1;
rx_audio_out=-1;
sdr=-1;
snd[RXDA].block_bytes=0;
snd[TXDA].block_bytes=0;
tx_audio_in=-1;
tx_audio_out=-1;
tx_flag=0;
// Clear flags
workload_reset_flag=0;
kill_all_flag=0;
lir_errcod=0;
for(i=0; i<THREAD_MAX; i++) {
thread_command_flag[i]=THRFLAG_NOT_ACTIVE;
thread_status_flag[i]=THRFLAG_NOT_ACTIVE;
}
threads_running=FALSE;
write_log=FALSE;
tx_hware_fqshift=0;
rx_hware_fqshift=0;
no_of_rx_overrun_errors=0;
no_of_rx_underrun_errors=0;
no_of_tx_overrun_errors=0;
no_of_tx_underrun_errors=0;
count_rx_underrun_flag=FALSE;
portaudio_active_flag=FALSE;
screensave_flag=FALSE;
internal_generator_flag=0;
internal_generator_noise=0;
internal_generator_att=0;
truncate_flag=0;
refresh_screen_flag=TRUE;
libusb1_library_flag=FALSE;
rtlsdr_library_flag=FALSE;
udev_library_flag=FALSE;
#if(OSNUM == OSNUM_LINUX)
alsa_library_flag=FALSE;
#endif
fg_truncation_error=0;
}
int skip_calibration(void)
{
int rdbuf[10], chkbuf[10];
int i, mm;
if( (save_init_flag&1) == 1) {
// The raw file contains calibration data for fft1_filtercorr.
i=fread(rdbuf, sizeof(int),10,save_rd_file);
if(i != 10)goto exx;
if(rdbuf[7] == 0) {
// The filtercorr function was saved in the frequency domain in
// rdbuf[1] points.
mm=rdbuf[1];
} else {
// The correction function was stored in the time domain in rdbuf[7] points
mm=rdbuf[7];
}
for(i=0; i<mm; i++) {
if((int)fread(timf1_char, sizeof(float), 2*rdbuf[6]+1, save_rd_file)
!= 2*rdbuf[6]+1)goto exx;
}
if(10 != fread(chkbuf, sizeof(int),10,save_rd_file))goto exx;
for(i=0; i<10; i++) {
if(rdbuf[i]!=chkbuf[i]) {
exx:
;
lir_text(1,7,"ERROR. File corrupted");
return FALSE;
}
}
}
if( (save_init_flag&2) == 2) {
i=fread(rdbuf, sizeof(int),10,save_rd_file);
if(i != 10)goto exx;
bal_segments=rdbuf[0];
mm=rdbuf[3]*rdbuf[0];
for(i=0; i<mm; i++) {
if(fread(timf1_char, sizeof(float), 8, save_rd_file) !=8)goto exx;
}
if(fread(chkbuf, sizeof(int),10,save_rd_file)!=10)goto exx;
for(i=0; i<10; i++) {
if(rdbuf[i]!=chkbuf[i])goto exx;
}
}
return TRUE;
}
void check_line(int *line)
{
if(line[0] >= screen_last_line) {
clear_lines(screen_last_line,screen_last_line);
settextcolor(12);
lir_text(2,screen_last_line,"SCREEN TOO LOW FOR SELECTED FONT SIZE");
settextcolor(7);
line[0]=screen_last_line-1;
clear_lines(line[0],line[0]);
}
}
void awake_screen(void)
{
lir_set_event(EVENT_SCREEN);
if(no_of_processors > 1) {
screen_loop_counter=screen_loop_counter_max;
}
}
void raw2wav(void)
{
int amplitude_factor;
int j, k, bits;
int n;
int wav_wrbytes, wavfile_bytes;
int line;
char fnam[256], s[80];
int *samp;
getin:
;
clear_screen();
settextcolor(14);
lir_text(10,1,"RAW to WAV file converter. (Enter to skip.)");
settextcolor(7);
lir_text(1,2,"Input file name:");
j=lir_get_filename(17,2,fnam);
if(j==0)return;
j=open_savefile(fnam);
if(j!=0)goto getin;
clear_screen();
if(ui.rx_ad_channels != 1 && ui.rx_ad_channels != 2) {
fclose(save_rd_file);
#if(OSNUM == OSNUM_WINDOWS)
CloseHandle(savefile_handle);
#endif
lir_text(0,0,"Can only write 1 or 2 audio channels.");
sprintf(s,"This file has %d channels.",ui.rx_ad_channels);
lir_text(0,2,s);
lir_text(5,3,press_any_key);
await_keyboard();
return;
}
rx_daout_channels=ui.rx_ad_channels;
genparm[DA_OUTPUT_SPEED]=ui.rx_ad_speed;
snd[RXAD].block_bytes=8192;
if((ui.rx_input_mode&DWORD_INPUT) != 0) {
bits=18;
rx_daout_bytes=3;
wav_wrbytes=(3*snd[RXAD].block_bytes)/4;
save_rw_bytes=18*snd[RXAD].block_bytes/32;
} else {
bits=16;
rx_daout_bytes=2;
wav_wrbytes=snd[RXAD].block_bytes;
save_rw_bytes=snd[RXAD].block_bytes;
}
timf1p_pa=0;
rxin_isho=(short int*)timf1_char;
rxin_int=(int*)timf1_char;
rxin_char=(char*)timf1_char;
rx_read_bytes=snd[RXAD].block_bytes;
timf1_char=malloc(snd[RXAD].block_bytes);
if(timf1_char == NULL)lirerr(34214);
rawsave_tmp=malloc(save_rw_bytes);
if(rawsave_tmp==NULL)lirerr(34124);
amplitude_factor=1;
sprintf(s,"Input file %s uses %d bits per sample",fnam,bits);
lir_text(0,0,s),
line=1;
wavfile_bytes=0;
if(fg.passband_direction <0 && (ui.rx_input_mode&IQ_DATA)!=0) {
lir_text(0,line,"The passband direction flag is set, I and Q will be exchanged");
line++;
}
if((ui.rx_input_mode&DWORD_INPUT) != 0) {
// This file uses 18 bits per sample. Check whether more
// than 16 bits actually contain valid data.
lir_text(0,line,"Scanning file for largest sample.");
line++;
if(skip_calibration() == FALSE)goto errx;
k=0;
while(diskread_flag != 4) {
diskread_block_counter++;
n=fread(rawsave_tmp,1,save_rw_bytes,save_rd_file);
if(n != save_rw_bytes) {
while(n != save_rw_bytes) {
rawsave_tmp[n]=0;
n++;
}
diskread_flag=4;
}
expand_rawdat();
for(n=0; n<snd[RXAD].block_bytes; n+=4) {
samp=(int*)(&timf1_char[n]);
if(k<abs(samp[0]))k=abs(samp[0]);
}
sprintf(s,"Blk %.0f (max ampl 0x%x)",diskread_block_counter,k);
lir_text(1,line,s);
}
line++;
amplitude_factor=0x7fffffff/k;
sprintf(s,"Headroom to saturation is a factor %d",amplitude_factor);
lir_text(1,line,s);
line++;
if(amplitude_factor >= 8) {
amplitude_factor=8;
lir_text(1,line,
"The .WAV file can be written in 16 bit format (left shifted by 2)");
line++;
goto gtfmt_a;
} else {
if(amplitude_factor==1) {
j=18;
} else {
j=17;
}
sprintf(s,"The input file uses %d significant bits",j);
lir_text(1,line,s);
line++;
gtfmt_a:
;
lir_text(1,line,"Do you wish to use 24 bit .WAV format (Y/N)?");
gtfmt:
;
to_upper_await_keyboard();
if(lir_inkey == 'N') {
rx_daout_bytes=2;
wav_wrbytes=snd[RXAD].block_bytes/2;
} else {
if(lir_inkey != 'Y')goto gtfmt;
}
}
fclose(save_rd_file);
#if(OSNUM == OSNUM_WINDOWS)
CloseHandle(savefile_handle);
#endif
j=open_savefile(fnam);
if(j!=0)lirerr(954362);
}
wavsave_start_stop(line+1);
if(wav_write_flag < 0) {
wav_write_flag=0;
return;
}
if(wav_write_flag == 0)return;
diskread_block_counter=0;
wavfile_bytes=48;
if(skip_calibration() == FALSE)goto errx;
while(diskread_flag != 4) {
diskread_block_counter++;
if( (ui.rx_input_mode&DWORD_INPUT) == 0) {
rxin_isho=(short int*)(timf1_char);
n=fread(rxin_isho,1,snd[RXAD].block_bytes,save_rd_file);
if(n != snd[RXAD].block_bytes) {
while(n != snd[RXAD].block_bytes) {
timf1_char[n]=0;
n++;
}
diskread_flag=4;
}
} else {
n=fread(rawsave_tmp,1,save_rw_bytes,save_rd_file);
if(n != save_rw_bytes) {
while(n != save_rw_bytes) {
rawsave_tmp[n]=0;
n++;
}
diskread_flag=4;
}
expand_rawdat();
k=0;
if(rx_daout_bytes==3) {
k=0;
for(n=0; n<snd[RXAD].block_bytes; n+=4) {
timf1_char[k ]=timf1_char[n+1];
timf1_char[k+1]=timf1_char[n+2];
timf1_char[k+2]=timf1_char[n+3];
k+=3;
}
} else {
for(n=0; n<snd[RXAD].block_bytes; n+=4) {
samp=(int*)(&timf1_char[n]);
samp[0]*=amplitude_factor;
timf1_char[k ]=timf1_char[n+2];
timf1_char[k+1]=timf1_char[n+3];
k+=2;
}
}
}
if(fg.passband_direction < 0 && (ui.rx_input_mode&IQ_DATA)!=0) {
if(rx_daout_bytes==3) {
for(j=0; j<wav_wrbytes; j+=6) {
k=timf1_char[j];
timf1_char[j]=timf1_char[j+3];
timf1_char[j+3]=k;
k=timf1_char[j+1];
timf1_char[j+1]=timf1_char[j+4];
timf1_char[j+4]=k;
k=timf1_char[j+2];
timf1_char[j+2]=timf1_char[j+5];
timf1_char[j+5]=k;
}
} else {
for(j=0; j<wav_wrbytes; j+=4) {
k=timf1_char[j];
timf1_char[j]=timf1_char[j+2];
timf1_char[j+2]=k;
k=timf1_char[j+1];
timf1_char[j+1]=timf1_char[j+3];
timf1_char[j+3]=k;
}
}
}
if(fwrite(timf1_char,wav_wrbytes,1,wav_file)!=1 ||
(unsigned int)(wavfile_bytes)+(unsigned int)(wav_wrbytes) > 0x7fffffff) {
wavsave_start_stop(0);
lir_text(1,7,"ERROR on write. File too big?");
goto errbig;
}
wavfile_bytes+=wav_wrbytes;
sprintf(s,"%.0f ",diskread_block_counter);
lir_text(1,7,s);
}
errbig:
;
wavsave_start_stop(0);
lir_text(1,7,"Conversion sucessful.");
errx:
;
if(wavfile_bytes < 100000) {
sprintf(s,"%d bytes written",wavfile_bytes);
} else {
if(wavfile_bytes < 10000000) {
sprintf(s,"%.2f kilobytes written",0.001*wavfile_bytes);
} else {
sprintf(s,"%.2f megabytes written",0.000001*wavfile_bytes);
}
}
lir_text(1,9,s);
lir_text(5,11,press_any_key);
free(timf1_char);
free(rawsave_tmp);
fclose(save_rd_file);
#if(OSNUM == OSNUM_WINDOWS)
CloseHandle(savefile_handle);
#endif
await_keyboard();
}
int open_savefile(char *s)
{
char *ss;
char sq[160];
int i;
ss=NULL;
i=0;
while(s[i] == ' ')i++;
if(s[i] == 0) {
lir_text(5,4,"No file name given.");
goto errfile_1;
}
#if(OSNUM == OSNUM_WINDOWS)
savefile_handle=CreateFile(s,
FILE_GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL|FILE_FLAG_SEQUENTIAL_SCAN,
NULL);
if(savefile_handle == INVALID_HANDLE_VALUE) {
sprintf(sq,"Could not find %s",s);
lir_text(5,4,sq);
lir_text(10,5,press_any_key);
goto errfile_1;
}
ss="C:\\LINRAD_DATA\\TEST.RAW";
#else
ss="/home/linrad_data/test.raw";
#endif
save_rd_file = fopen(s, "rb");
if (save_rd_file == NULL) {
if(errno == EFBIG) {
lir_text(5,3,"File too large.");
}
errfile:
;
sprintf(sq,"Can not open file %s",s);
lir_text(5,4,sq);
lir_text(5,5,"Name must be given with full path. Example:");
settextcolor(14);
lir_text(5,6,ss);
settextcolor(7);
errfile_1:
;
await_keyboard();
return 1;
}
diskread_flag=2;
// Read a Linrad.raw file
// The original file format had ui.rx_input_mode as the first data item.
// Later versions use the first item as a flag to know the
// contents of the file.
i=fread(&ui.rx_input_mode,sizeof(int),1,save_rd_file);
if(i != 1) {
errfile_2:
;
lir_text(5,3,"File corrupted.");
goto errfile;
}
// In case ui.rx_input_mode is negative the file contains more data.
if(ui.rx_input_mode < 0) {
remember_proprietery_chunk[0]=ui.rx_input_mode;
switch (ui.rx_input_mode) {
case REMEMBER_UNKNOWN:
case REMEMBER_NOTHING:
break;
default:
lir_text(5,3,"This Linrad version is too old");
goto errfile_2;
}
i=fread(&diskread_time,sizeof(double),1,save_rd_file);
if(i!=1)goto errfile_2;
i=fread(&fg.passband_center,sizeof(double),1,save_rd_file);
freq_from_file=TRUE;
if(i!=1)goto errfile_2;
i=fread(&fg.passband_direction,sizeof(int),1,save_rd_file);
if(i!=1)goto errfile_2;
if(abs(fg.passband_direction) != 1)goto errfile_2;
fft1_direction=fg.passband_direction;
i=fread(&ui.rx_input_mode,sizeof(int),1,save_rd_file);
if(i!=1)goto errfile_2;
} else {
diskread_time=0;
fg.passband_center=0;
fg.passband_direction=1;
fft1_direction=fg.passband_direction;
remember_proprietery_chunk[0]=REMEMBER_NOTHING;
}
if(ui.rx_input_mode >= MODEPARM_MAX)goto errfile_2;
i=fread(&ui.rx_rf_channels,sizeof(int),1,save_rd_file);
if(i!=1)goto errfile_2;
if(ui.rx_rf_channels == 2)ui.rx_input_mode|=TWO_CHANNELS;
i=fread(&ui.rx_ad_channels,sizeof(int),1,save_rd_file);
if(i!=1)goto errfile_2;
if(ui.rx_ad_channels > 4 || ui.rx_ad_channels < 1)goto errfile_2;
if(ui.rx_ad_channels != ui.rx_rf_channels &&
ui.rx_ad_channels != 2*ui.rx_rf_channels)goto errfile_2;
i=fread(&ui.rx_ad_speed,sizeof(int),1,save_rd_file);
if(i!=1)goto errfile_2;
save_init_flag=0;
i=fread(&save_init_flag,1,1,save_rd_file);
if(i!=1)goto errfile_2;
return 0;
}
void could_not_create(char *filename, int line)
{
lir_text(0,line,"Could not create file!!");
lir_text(0,line+1,filename);
lir_text(0,line+2,"Make sure directory exists and that the filename is not");
lir_text(0,line+3,"a diredctory name.");
lir_text(0,line+4,press_any_key);
clear_await_keyboard();
}
FILE *open_parfile(int type, char *mode)
{
char s[80];
int i,j;
// Find out if there is a file with parameters for the current graph.
// Make the default graph if no file is found, else use old data.
i=0;
if(savefile_parname[0]!=0) {
while(savefile_parname[i]!=0) {
s[i]=savefile_parname[i];
i++;
}
} else {
while(rxpar_filenames[rx_mode][i]!=0) {
s[i]=rxpar_filenames[rx_mode][i];
i++;
}
}
s[i ]='_';
i++;
j=0;
while(graphtype_names[type][j] != 0) {
s[i]=graphtype_names[type][j];
i++;
j++;
}
s[i]=0;
return fopen(s, mode);
}
int read_modepar_file(int type)
{
int i, j, k, max_intpar, max_floatpar;
int *wgi;
float *wgf;
double *wgd;
char *parinfo;
FILE *wgfile;
wgfile = open_parfile(type,"r");
if (wgfile == NULL)return 0;
parinfo=malloc(4096);
if(parinfo == NULL) {
lirerr(1082);
return 0;
}
for(i=0; i<4096; i++) parinfo[i]=0;
i=fread(parinfo,1,4095,wgfile);
fclose(wgfile);
if(i == 4095)goto txt_err;
wgi=(int*)(graphtype_parptr[type]);
k=0;
max_intpar = graphtype_max_intpar[type];
max_floatpar = graphtype_max_floatpar[type];
for(i=0; i<max_intpar; i++) {
while( (parinfo[k]==' ' || parinfo[k]== '\n' ) && k<4095)k++;
j=0;
while(parinfo[k]== graphtype_partexts_int[type][i][j] && k<4095) {
k++;
j++;
}
if(graphtype_partexts_int[type][i][j] != 0) {
txt_err:
;
free(parinfo);
return 0;
}
while(parinfo[k]!='[' && k<4095)k++;
if(k>=4095)goto txt_err;
sscanf(&parinfo[k],"[%d]",&wgi[i]);
while(parinfo[k]!='\n' && k<4095)k++;
if(k>=4095)goto txt_err;
}
if(max_floatpar < 0) {
wgd=(double*)(&wgi[max_intpar]);
for(i=0; i<-max_floatpar; i++) {
while(parinfo[k]==' ' ||
parinfo[k]== '\n' )k++;
j=0;
while(parinfo[k]== graphtype_partexts_float[type][i][j]&&k<4095) {
k++;
j++;
}
if(graphtype_partexts_float[type][i][j] != 0)goto txt_err;
while(parinfo[k]!='[' && k<4095)k++;
if(k>=4095)goto txt_err;
sscanf(&parinfo[k],"[%lf]",&wgd[i]);
if(k>=4095)goto txt_err;
while(parinfo[k]!='\n' && k<4095)k++;
}
} else {
wgf=(float*)(&wgi[max_intpar]);
for(i=0; i<max_floatpar; i++) {
while(parinfo[k]==' ' || parinfo[k]== '\n' )k++;
j=0;
while(parinfo[k]== graphtype_partexts_float[type][i][j]) {
k++;
j++;
}
if(graphtype_partexts_float[type][i][j] != 0)goto txt_err;
while(parinfo[k]!='[')k++;
sscanf(&parinfo[k],"[%f]",&wgf[i]);
while(parinfo[k]!='\n')k++;
}
}
free(parinfo);
return 1;
}
void make_modepar_file(int type)
{
int i, max_intpar, max_floatpar;
int *wgi;
float *wgf;
double *wgd;
FILE *file;
file = open_parfile(type,"w");
if (file == NULL) {
lirerr(1164);
return;
}
wgi=(int*)(graphtype_parptr[type]);
max_intpar = graphtype_max_intpar[type];
max_floatpar = graphtype_max_floatpar[type];
for(i=0; i<max_intpar; i++) {
fprintf(file,"%s [%d]\n",graphtype_partexts_int[type][i],wgi[i]);
}
if(max_floatpar < 0) {
wgd=(double*)(&wgi[max_intpar]);
for(i=0; i<-max_floatpar; i++) {
fprintf(file,"%s [%.30f]\n",graphtype_partexts_float[type][i],wgd[i]);
}
} else {
wgf=(float*)(&wgi[max_intpar]);
for(i=0; i<max_floatpar; i++) {
fprintf(file,"%s [%.15f]\n",graphtype_partexts_float[type][i],wgf[i]);
}
}
parfile_end(file);
}
void select_namlin(char *s,FILE *file)
{
char ch;
int i,k,num, line, col;
fpos_t fileptr[MAX_FILES];
clear_screen();
if(sel_line == -1)lir_text(10,0,"SELECT A NUMBER FROM THE LIST:");
num=0;
line=2;
col=0;
get_name:
;
k=1;
sprintf(s,"%2d:",num);
if(fgetpos(file, &fileptr[num])) {
lirerr(1118);
return;
}
i=2;
while(k==1 && s[i] != 10 && i<MAX_NAMLEN) {
i++;
k=fread(&s[i],1,1,file);
if(s[i]==13)s[i]=10;
if(i==3 && s[i]==10)goto get_name;
}
ch=s[i];
s[i]=0;
if(i>3) {
if(sel_line == -1)lir_text(col,line,s);
while(k==1 && ch != 10 ) {
k=fread(&ch,1,1,file);
if(ch==13)ch=10;
}
num++;
line++;
}
if(line>screen_last_line) {
line=2;
col+=MAX_NAMLEN +5;
if( col+MAX_NAMLEN+5 > screen_last_col)goto listfull;
}
if(k == 1 && num < MAX_FILES)goto get_name;
listfull:
;
if(sel_line == -1)sel_line=lir_get_integer(42, 0, 3, 0,num-1);
if(kill_all_flag) return;
if(fsetpos(file, &fileptr[sel_line]))lirerr(1119);
clear_screen();
}
void get_parfile_name(char *s)
{
int i, ptr, eq;
ptr=0;
while(s[ptr]!=0 && s[ptr]!=' ') {
savefile_name[ptr]=s[ptr];
if(s[ptr]==10 || s[ptr]==13 ) {
savefile_parname[0]=0;
savefile_name[ptr]=0;
s[ptr]=0;
return;
}
ptr++;
if(ptr > SAVEFILE_MAX_CHARS)lirerr(1104);
}
savefile_name[ptr]=0;
s[ptr]=0;
ptr++;
while(s[ptr] == ' ')ptr++;
i=0;
eq=1;
while(s[ptr]!=0 &&
s[ptr]!=' ' &&
s[ptr] != 10 &&
s[ptr] != 13 &&
i<SAVEFILE_MAX_CHARS) {
savefile_parname[i]=s[ptr];
if(s[i] != s[ptr])eq=0;
i++;
ptr++;
}
if(s[i] != ' ')eq=0;
if(i!=0 && eq==1)lirerr(1120);
if(i>= SAVEFILE_MAX_CHARS)lirerr(1115);
savefile_parname[i]=0;
}
int init_wavread(int sel_file)
{
char s[256], sq[256], si[16];
FILE *file;
int i, k, n, chunk_size;
short int ishort, format_tag;
int errnr, expert_sdr2_flag;
;
clear_screen();
expert_sdr2_flag=FALSE;
file = fopen("adwav", "rb");
if (file == NULL) {
file = fopen("adwav.txt", "rb");
if (file == NULL) {
empty_error:
;
help_message(313);
return 1;
}
}
if(sel_file != 0) {
select_namlin(s,file);
if(kill_all_flag) return 1;
}
for(i=0; i<256; i++)s[i]=0;
k=fread(&s, 1, 256, file);
fclose(file);
if(k<2)goto empty_error;
i=0;
while( i<255 && (s[i] == ' ' || s[i] == 10 || s[i] == 13))i++;
get_parfile_name(&s[i]);
if(lir_errcod != 0)return 1;
for(n=i; n<256; n++)if(s[n]==10 || s[n]==13)s[n]=0;
#if(OSNUM == OSNUM_WINDOWS)
savefile_handle=CreateFile(&s[i],
FILE_GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL|FILE_FLAG_SEQUENTIAL_SCAN,
NULL);
if(savefile_handle == INVALID_HANDLE_VALUE)goto rdfile_x;
#endif
save_rd_file = fopen(&s[i], "rb");
if (save_rd_file == NULL) {
#if(OSNUM == OSNUM_WINDOWS)
rdfile_x:
;
#endif
sprintf(sq,"Could not find %s",&s[i]);
lir_text(5,4,sq);
rdfile_x1:
;
lir_text(10,5,press_any_key);
await_keyboard();
return 1;
}
diskread_time=0;
fg.passband_center=0;
// Read the WAV file header.
// First 4 bytes should be "RIFF"
si[4]=0;
k=fread(&si,sizeof(int),1,save_rd_file);
errnr=0;
if(k !=1) {
headerr:
;
lir_text(5,5,s);
sprintf(s,"Error in .wav file header [%d]",errnr);
lir_text(5,4,s);
goto rdfile_x1;
}
if(strncmp(si,"RIFF",sizeof(int)) != 0) {
errnr=1;
goto headerr;
}
// Read file size (we do not need it)
k=fread(&i,sizeof(int),1,save_rd_file);
if(k!=1) {
errnr=2;
goto headerr;
}
// Now we should read "WAVE"
k=fread(&si,sizeof(int),1,save_rd_file);
errnr=2;
if(k !=1 || strncmp(si,"WAVE",sizeof(int)) != 0)goto headerr;
// Now we should read "fmt "
k=fread(&si,sizeof(int),1,save_rd_file);
errnr=3;
if(k !=1 || strncmp(si,"fmt ",sizeof(int)) != 0)goto headerr;
// read the size of the format chunk.
k=fread(&chunk_size,sizeof(int),1,save_rd_file);
errnr=4;
if(k !=1 )goto headerr;
// read the type of data (Format Tag). We only recognize PCM data!
k=fread(&format_tag,sizeof(short int),1,save_rd_file);
errnr=5;
if(k !=1 || (format_tag != 1 && format_tag != 3)) {
lir_text(5,3,"Unknown wFormatTag.");
goto headerr;
}
// Read no of channels
k=fread(&ishort,sizeof(short int),1,save_rd_file);
errnr=6;
if(k !=1 || ishort < 1 || ishort > 2)goto headerr;
ui.rx_ad_channels=ishort;
// Read the sampling speed.
k=fread(&ui.rx_ad_speed,sizeof(int),1,save_rd_file);
errnr=7;
if(k !=1 )goto headerr;
// Read average bytes per second (do not care what it is)
errnr=8;
k=fread(&i,sizeof(int),1,save_rd_file);
if(k !=1 )goto headerr;
// Read block align to get 8 or 16 bit format.
k=fread(&ishort,sizeof(short int),1,save_rd_file);
errnr=9;
if(k !=1 )goto headerr;
ishort/=ui.rx_ad_channels;
switch (ishort) {
case 1:
// byte int input
errnr=10;
if(format_tag != 1)goto headerr;
ui.rx_input_mode=BYTE_INPUT;
break;
case 2:
// 16 bit int input
errnr=11;
if(format_tag != 1)goto headerr;
ui.rx_input_mode=0;
break;
case 3:
// 24 bit int input
errnr=12;
if(format_tag != 1)goto headerr;
ui.rx_input_mode=BYTE_INPUT+DWORD_INPUT;
break;
case 4:
errnr=13;
if(format_tag == 1) {
// 32 bit int input
ui.rx_input_mode=QWORD_INPUT+DWORD_INPUT;
break;
}
if(format_tag != 3)goto headerr;
// 32 bit float input
ui.rx_input_mode=FLOAT_INPUT+DWORD_INPUT;
break;
default:
goto headerr;
}
// Skip extra bytes if present.
chunk_size-=14;
skip_chunk: