X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FSound%2Fmorse.cxx;h=942b637a5a2ae46ecf1687994fdd2e82983ce386;hb=fde1a925feb8ccc50e88e3fbe72a0863625de2a5;hp=ef0b43fa7da6ec1fccbdb0f5314c25e16ba2db0d;hpb=df472fe0f5542d570feab42ce9ac1076a07419eb;p=flightgear.git diff --git a/src/Sound/morse.cxx b/src/Sound/morse.cxx index ef0b43fa7..942b637a5 100644 --- a/src/Sound/morse.cxx +++ b/src/Sound/morse.cxx @@ -2,7 +2,7 @@ // // Written by Curtis Olson, started March 2001. // -// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org +// Copyright (C) 2001 Curtis L. Olson - http://www.flightgear.org/~curt // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License as @@ -16,7 +16,7 @@ // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software -// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // $Id$ @@ -87,7 +87,7 @@ void make_tone( unsigned char *buf, int freq, int i, j; for ( i = 0; i < trans_len; ++i ) { - float level = ( sin( (double) i * 2.0 * SGD_PI / (BYTES_PER_SECOND / freq) ) ) + float level = ( sin( (double) i * SGD_2PI / (BYTES_PER_SECOND / freq) ) ) * ((double)i / trans_len) / 2.0 + 0.5; /* Convert to unsigned byte */ @@ -95,7 +95,7 @@ void make_tone( unsigned char *buf, int freq, } for ( i = trans_len; i < len - trans_len; ++i ) { - float level = ( sin( (double) i * 2.0 * SGD_PI / (BYTES_PER_SECOND / freq) ) ) + float level = ( sin( (double) i * SGD_2PI / (BYTES_PER_SECOND / freq) ) ) / 2.0 + 0.5; /* Convert to unsigned byte */ @@ -103,7 +103,7 @@ void make_tone( unsigned char *buf, int freq, } j = trans_len; for ( i = len - trans_len; i < len; ++i ) { - float level = ( sin( (double) i * 2.0 * SGD_PI / (BYTES_PER_SECOND / freq) ) ) + float level = ( sin( (double) i * SGD_2PI / (BYTES_PER_SECOND / freq) ) ) * ((double)j / trans_len) / 2.0 + 0.5; --j; @@ -167,6 +167,7 @@ bool FGMorse::cust_init(const int freq ) { // make a SGSoundSample morse code transmission for the specified string SGSoundSample *FGMorse::make_ident( const string& id, const int freq ) { + char *idptr = (char *)id.c_str(); int length = 0; @@ -218,10 +219,10 @@ SGSoundSample *FGMorse::make_ident( const string& id, const int freq ) { length += 2 * SPACE_SIZE; // 2. Allocate space for the message - unsigned char *buffer = new unsigned char[length]; + const unsigned char* buffer = (const unsigned char *)malloc(length); // 3. Assemble the message; - unsigned char *buf_ptr = buffer; + unsigned char *buf_ptr = (unsigned char*)buffer; for ( i = 0; i < (int)id.length(); ++i ) { if ( idptr[i] >= 'A' && idptr[i] <= 'Z' ) { @@ -260,8 +261,11 @@ SGSoundSample *FGMorse::make_ident( const string& id, const int freq ) { buf_ptr += SPACE_SIZE; // 4. create the simple sound and return - SGSoundSample *sample = new SGSoundSample( buffer, length, + SGSoundSample *sample = new SGSoundSample( &buffer, length, BYTES_PER_SECOND ); + sample->set_reference_dist( 10.0 ); + sample->set_max_dist( 20.0 ); + return sample; }