BDevice::BDevice() : accessibilityMode(false), x(0), y(0)
{
name.resize(BRLAPI_MAXNAMELENGTH + 1);
this->socket = brlapi_openConnection(NULL, NULL);
brlapi_getDisplaySize(&x, &y);
brlapi_getDriverName(&name[0], BRLAPI_MAXNAMELENGTH + 1);
}
/* Opens a connection with BrlAPI's server */
static int brl_construct(BrailleDisplay *brl, char **parameters, const char *device)
{
brlapi_connectionSettings_t settings;
settings.host = parameters[PARM_HOST];
settings.auth = parameters[PARM_AUTH];
CHECK((brlapi_openConnection(&settings, &settings)>=0), out);
logMessage(LOG_DEBUG, "Connected to %s using %s", settings.host, settings.auth);
CHECK((brlapi_enterTtyModeWithPath(NULL, 0, NULL)>=0), out0);
logMessage(LOG_DEBUG, "Got tty successfully");
CHECK((brlapi_getDisplaySize(&brl->textColumns, &brl->textRows)==0), out1);
logMessage(LOG_DEBUG,"Found out display size: %dx%d", brl->textColumns, brl->textRows);
displaySize = brl->textColumns*brl->textRows;
prevData = malloc(displaySize);
CHECK((prevData!=NULL), out1);
prevText = malloc(displaySize * sizeof(wchar_t));
CHECK((prevText!=NULL), out2);
prevShown = 0;
restart = 0;
logMessage(LOG_DEBUG, "Memory allocated, returning 1");
return 1;
out2:
free(prevData);
out1:
brlapi_leaveTtyMode();
out0:
brlapi_closeConnection();
out:
logMessage(LOG_DEBUG, "Something went wrong, returning 0");
return 0;
}
END_OPTION_TABLE
static void showDisplaySize(void)
{
unsigned int x, y;
fprintf(stderr,"Getting display size: ");
if (brlapi_getDisplaySize(&x, &y)<0) {
brlapi_perror("failed");
exit(PROG_EXIT_FATAL);
}
fprintf(stderr, "%dX%d\n", x, y);
}
static void showDots(void)
{
unsigned int x, y;
brlapi_keyCode_t k;
if (brlapi_getDisplaySize(&x, &y)<0) {
brlapi_perror("failed");
exit(PROG_EXIT_FATAL);
}
if (brlapi_enterTtyMode(-1, NULL)<0) {
brlapi_perror("enterTtyMode");
exit(PROG_EXIT_FATAL);
}
if (x*y<DOTS_TOTALLEN) {
fprintf(stderr,"can't show dots with a braille display with less than %d cells\n",(int)DOTS_TOTALLEN);
exit(PROG_EXIT_SEMANTIC);
}
{
char text[x*y+1];
unsigned char or[x*y];
brlapi_writeArguments_t wa = BRLAPI_WRITEARGUMENTS_INITIALIZER;
fprintf(stderr,"Showing dot patterns\n");
memcpy(text,DOTS_TEXT,DOTS_TEXTLEN);
memset(text+DOTS_TEXTLEN,' ',sizeof(text)-DOTS_TEXTLEN);
text[x*y] = 0;
wa.regionBegin = 1;
wa.regionSize = sizeof(or);
wa.text = text;
memset(or,0,sizeof(or));
or[DOTS_TEXTLEN+0] = BRL_DOT_1;
or[DOTS_TEXTLEN+1] = BRL_DOT_2;
or[DOTS_TEXTLEN+2] = BRL_DOT_3;
or[DOTS_TEXTLEN+3] = BRL_DOT_4;
or[DOTS_TEXTLEN+4] = BRL_DOT_5;
or[DOTS_TEXTLEN+5] = BRL_DOT_6;
or[DOTS_TEXTLEN+6] = BRL_DOT_7;
or[DOTS_TEXTLEN+7] = BRL_DOT_8;
wa.orMask = or;
if (brlapi_write(&wa)<0) {
brlapi_perror("brlapi_write");
exit(PROG_EXIT_FATAL);
}
}
brlapi_readKey(1, &k);
}
/*
** Initialize the application and connect to brlapi
** Init brlapi raw mode and print a welcome message on the terminal
*/
int brl_init(t_env *env)
{
brlapi_settings_t settings;
char p[100];
unsigned int x, y;
settings.host = NULL;
/* Connect to BrlAPI */
if (brlapi_initializeConnection(NULL, NULL) < 0)
{
brlapi_perror("brlapi_initializeConnection");
return -1;
}
/* Get driver id & name */
brlapi_getDriverName(p, 100);
if (!p)
brlapi_perror("brlapi_getDriverName");
else
printf("Driver name: %s\n",p);
/* Get display size */
if (brlapi_getDisplaySize(&x, &y) < 0)
brlapi_perror("brlapi_getDisplaySize");
else
printf("Braille display has %d line%s of %d column%s\n",y,y>1?"s":"",x,x>1?"s":"");
/* Try entering raw mode, immediately go out from raw mode */
printf("Trying to enter in raw mode... ");
if (brlapi_enterRawMode("EuroBraille") < 0)
brlapi_perror("brlapi_getRaw");
else {
printf("Ok\n");
}
/* welcome message */
brl_lasting_message(EUTP_VERSION);
get_ident(env->ident);
printf("Identification: %20s\n", env->ident);
return 0;
}
