SIDPlayer/src/main_sdl.cpp

/*
 *  main_sdl.cpp - SIDPlayer SDL main program
 *
 *  SIDPlayer (C) Copyright 1996-2001 Christian Bauer
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "sys.h"

#include <SDL.h>
#include <SDL/SDL_endian.h>

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

#include "main.h"
#include "prefs.h"
#include "sid.h"


/*
 *  Main program
 */

static void usage(const char *prg_name)
{
        printf("Usage: %s [OPTION...] FILE [song_number]\n", prg_name);
        PrefsPrintUsage();
        exit(0);
}

static void quit(void)
{
        ExitAll();
        SDL_Quit();
}

int main(int argc, char **argv)
{
        // Print banner
        printf(
                PACKAGE " Version " VERSION "\n\n"
                "Copyright (C) 1996-2001 Christian Bauer\n"
                "E-mail: Christian.Bauer@uni-mainz.de\n"
                "http://www.uni-mainz.de/~bauec002/\n\n"
                "This is free software with ABSOLUTELY NO WARRANTY.\n"
                "You are welcome to redistribute it under certain conditions.\n"
                "For details, see the file COPYING.\n\n"
        );

        // Initialize everything
        if (SDL_Init(SDL_INIT_AUDIO) < 0) {
                fprintf(stderr, "Couldn't initialize SDL (%s)\n", SDL_GetError());
                exit(1);
        }
        atexit(quit);
        InitAll(argc, argv);

        // Parse non-option arguments
        const char *file_name = NULL;
        int song = 0;
        for (int i=1; i<argc; i++) {
                if (strcmp(argv[i], "--help") == 0)
                        usage(argv[0]);
                else if (argv[i][0] == '-') {
                        fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
                        usage(argv[0]);
                } else {
                        if (file_name == NULL)
                                file_name = argv[i];  // First non-option argument is file name
                        else
                                song = atoi(argv[i]); // Second non-option argument is song number
                }
        }
        if (file_name == NULL)
                usage(argv[0]);

        // Load given PSID file
        if (!LoadPSIDFile(file_name)) {
                fprintf(stderr, "Couldn't load '%s' (not a PSID file?)\n", file_name);
                exit(1);
        }

        // Select song
        if (song > 0) {
                if (song > number_of_songs)
                        song = number_of_songs;
                SelectSong(song - 1);
                SIDAdjustSpeed(PrefsFindInt32("speed")); // SelectSong resets this to 100%
        }

        // Print file information
        printf("Module Name: %s\n", module_name);
        printf("Author     : %s\n", author_name);
        printf("Copyright  : %s\n\n", copyright_info);
        printf("Playing song %d/%d\n", current_song + 1, number_of_songs);

        // Replay or output to file?
        const char *outfile = PrefsFindString("outfile");
        if (outfile) {

                // Open file
                SDL_RWops *f = SDL_RWFromFile(outfile, "wb");
                if (f == NULL) {
                        fprintf(stderr, "Can't open '%s' for writing (%s)\n", outfile, strerror(errno));
                        exit(1);
                }

                // Get format information
                int32 channels = (PrefsFindBool("stereo") ? 2 : 1);
                int32 bits = (PrefsFindBool("audio16bit") ? 16 : 8);
                int32 rate = PrefsFindInt32("samplerate");
                int32 time = PrefsFindInt32("time");
                int32 bytes_per_frame = channels * (bits / 8);
                int32 bytes_per_second = rate * bytes_per_frame;
                int32 data_length = time * bytes_per_second;

                // Write header
                SDL_WriteLE32(f, 0x46464952); // "RIFF"
                SDL_WriteLE32(f, 36 + data_length);
                SDL_WriteLE32(f, 0x45564157); // "WAVE"
                SDL_WriteLE32(f, 0x20746D66); // "fmt "
                SDL_WriteLE32(f, 16);
                SDL_WriteLE16(f, 1);
                SDL_WriteLE16(f, channels);
                SDL_WriteLE32(f, rate);
                SDL_WriteLE32(f, bytes_per_second);
                SDL_WriteLE16(f, bytes_per_frame);
                SDL_WriteLE16(f, bits);
                SDL_WriteLE32(f, 0x61746164); // "data"
                SDL_WriteLE32(f, data_length);

                // Calculate sound and write to file
                uint8 *buf = new uint8[bytes_per_second];
                for (int i=0; i<time; i++) {
                        SIDCalcBuffer(buf, bytes_per_second);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
                        if (bits > 8) {
                                // WAV file is little-endian, swap audio data
                                for (int b=0; b<bytes_per_second; b+=2) {
                                        uint8 tmp = buf[b];
                                        buf[b] = buf[b+1];
                                        buf[b+1] = tmp;
                                }
                        }
#endif
                        SDL_RWwrite(f, buf, bytes_per_second, 1);
                }
                delete[] buf;

                // Close file
                SDL_RWclose(f);
                printf("Output written to '%s'\n", outfile);

        } else {

                // Start replay and enter main loop
                SDL_PauseAudio(false);
                while (true) {
                        SDL_Event e;
                        if (SDL_WaitEvent(&e)) {
                                if (e.type == SDL_QUIT)
                                        break;
                        }
                }
        }

        return 0;
}
Revision:	1.9
Committed:	2001-04-01T17:04:43Z (23 years ago) by cebix
Branch:	MAIN
Changes since 1.8:	+71 -9 lines
Log Message:	SDL version can output to WAV file
#	User	Rev	Content
1	cebix	1.1	/*
2			* main_sdl.cpp - SIDPlayer SDL main program
3			*
4	cebix	1.6	* SIDPlayer (C) Copyright 1996-2001 Christian Bauer
5	cebix	1.1	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#include "sys.h"
22
23			#include <SDL.h>
24	cebix	1.9	#include <SDL/SDL_endian.h>
25
26	cebix	1.1	#include <stdio.h>
27			#include <stdlib.h>
28	cebix	1.9	#include <errno.h>
29	cebix	1.1
30			#include "main.h"
31	cebix	1.4	#include "prefs.h"
32			#include "sid.h"
33	cebix	1.1
34
35			/*
36			* Main program
37			*/
38
39			static void usage(const char *prg_name)
40			{
41	cebix	1.7	printf("Usage: %s [OPTION...] FILE [song_number]\n", prg_name);
42	cebix	1.5	PrefsPrintUsage();
43	cebix	1.1	exit(0);
44			}
45
46			static void quit(void)
47			{
48			ExitAll();
49			SDL_Quit();
50			}
51
52			int main(int argc, char **argv)
53			{
54			// Print banner
55			printf(
56			PACKAGE " Version " VERSION "\n\n"
57	cebix	1.5	"Copyright (C) 1996-2001 Christian Bauer\n"
58	cebix	1.1	"E-mail: Christian.Bauer@uni-mainz.de\n"
59			"http://www.uni-mainz.de/~bauec002/\n\n"
60			"This is free software with ABSOLUTELY NO WARRANTY.\n"
61			"You are welcome to redistribute it under certain conditions.\n"
62			"For details, see the file COPYING.\n\n"
63			);
64
65	cebix	1.5	// Initialize everything
66			if (SDL_Init(SDL_INIT_AUDIO) < 0) {
67			fprintf(stderr, "Couldn't initialize SDL (%s)\n", SDL_GetError());
68			exit(1);
69			}
70			atexit(quit);
71			InitAll(argc, argv);
72
73			// Parse non-option arguments
74	cebix	1.8	const char *file_name = NULL;
75	cebix	1.1	int song = 0;
76	cebix	1.8	for (int i=1; i<argc; i++) {
77			if (strcmp(argv[i], "--help") == 0)
78			usage(argv[0]);
79			else if (argv[i][0] == '-') {
80			fprintf(stderr, "Unrecognized option '%s'\n", argv[i]);
81			usage(argv[0]);
82			} else {
83			if (file_name == NULL)
84			file_name = argv[i]; // First non-option argument is file name
85			else
86			song = atoi(argv[i]); // Second non-option argument is song number
87	cebix	1.3	}
88			}
89	cebix	1.8	if (file_name == NULL)
90			usage(argv[0]);
91	cebix	1.1
92			// Load given PSID file
93	cebix	1.3	if (!LoadPSIDFile(file_name)) {
94			fprintf(stderr, "Couldn't load '%s' (not a PSID file?)\n", file_name);
95	cebix	1.1	exit(1);
96			}
97
98			// Select song
99			if (song > 0) {
100			if (song > number_of_songs)
101			song = number_of_songs;
102			SelectSong(song - 1);
103	cebix	1.9	SIDAdjustSpeed(PrefsFindInt32("speed")); // SelectSong resets this to 100%
104	cebix	1.1	}
105
106			// Print file information
107			printf("Module Name: %s\n", module_name);
108			printf("Author : %s\n", author_name);
109			printf("Copyright : %s\n\n", copyright_info);
110			printf("Playing song %d/%d\n", current_song + 1, number_of_songs);
111
112	cebix	1.9	// Replay or output to file?
113			const char *outfile = PrefsFindString("outfile");
114			if (outfile) {
115
116			// Open file
117			SDL_RWops *f = SDL_RWFromFile(outfile, "wb");
118			if (f == NULL) {
119			fprintf(stderr, "Can't open '%s' for writing (%s)\n", outfile, strerror(errno));
120			exit(1);
121			}
122
123			// Get format information
124			int32 channels = (PrefsFindBool("stereo") ? 2 : 1);
125			int32 bits = (PrefsFindBool("audio16bit") ? 16 : 8);
126			int32 rate = PrefsFindInt32("samplerate");
127			int32 time = PrefsFindInt32("time");
128			int32 bytes_per_frame = channels * (bits / 8);
129			int32 bytes_per_second = rate * bytes_per_frame;
130			int32 data_length = time * bytes_per_second;
131
132			// Write header
133			SDL_WriteLE32(f, 0x46464952); // "RIFF"
134			SDL_WriteLE32(f, 36 + data_length);
135			SDL_WriteLE32(f, 0x45564157); // "WAVE"
136			SDL_WriteLE32(f, 0x20746D66); // "fmt "
137			SDL_WriteLE32(f, 16);
138			SDL_WriteLE16(f, 1);
139			SDL_WriteLE16(f, channels);
140			SDL_WriteLE32(f, rate);
141			SDL_WriteLE32(f, bytes_per_second);
142			SDL_WriteLE16(f, bytes_per_frame);
143			SDL_WriteLE16(f, bits);
144			SDL_WriteLE32(f, 0x61746164); // "data"
145			SDL_WriteLE32(f, data_length);
146
147			// Calculate sound and write to file
148			uint8 *buf = new uint8[bytes_per_second];
149			for (int i=0; i<time; i++) {
150			SIDCalcBuffer(buf, bytes_per_second);
151			#if SDL_BYTEORDER == SDL_BIG_ENDIAN
152			if (bits > 8) {
153			// WAV file is little-endian, swap audio data
154			for (int b=0; b<bytes_per_second; b+=2) {
155			uint8 tmp = buf[b];
156			buf[b] = buf[b+1];
157			buf[b+1] = tmp;
158			}
159			}
160			#endif
161			SDL_RWwrite(f, buf, bytes_per_second, 1);
162			}
163			delete[] buf;
164
165			// Close file
166			SDL_RWclose(f);
167			printf("Output written to '%s'\n", outfile);
168
169			} else {
170
171			// Start replay and enter main loop
172			SDL_PauseAudio(false);
173			while (true) {
174			SDL_Event e;
175			if (SDL_WaitEvent(&e)) {
176			if (e.type == SDL_QUIT)
177			break;
178			}
179	cebix	1.1	}
180			}
181
182			return 0;
183			}