| 21 |
|
#include "sys.h" |
| 22 |
|
|
| 23 |
|
#include <SDL.h> |
| 24 |
+ |
#include <SDL/SDL_endian.h> |
| 25 |
+ |
|
| 26 |
|
#include <stdio.h> |
| 27 |
|
#include <stdlib.h> |
| 28 |
+ |
#include <errno.h> |
| 29 |
|
|
| 30 |
|
#include "main.h" |
| 31 |
|
#include "prefs.h" |
| 69 |
|
} |
| 70 |
|
atexit(quit); |
| 71 |
|
InitAll(argc, argv); |
| 69 |
– |
int32 selected_speed = PrefsFindInt32("speed"); |
| 72 |
|
|
| 73 |
|
// Parse non-option arguments |
| 74 |
|
const char *file_name = NULL; |
| 100 |
|
if (song > number_of_songs) |
| 101 |
|
song = number_of_songs; |
| 102 |
|
SelectSong(song - 1); |
| 103 |
+ |
SIDAdjustSpeed(PrefsFindInt32("speed")); // SelectSong resets this to 100% |
| 104 |
|
} |
| 105 |
|
|
| 106 |
|
// Print file information |
| 109 |
|
printf("Copyright : %s\n\n", copyright_info); |
| 110 |
|
printf("Playing song %d/%d\n", current_song + 1, number_of_songs); |
| 111 |
|
|
| 112 |
< |
// Start replay and enter main loop |
| 113 |
< |
SIDAdjustSpeed(selected_speed); // SelectSong resets this to 100% |
| 114 |
< |
SDL_PauseAudio(false); |
| 115 |
< |
while (true) { |
| 116 |
< |
SDL_Event e; |
| 117 |
< |
if (SDL_WaitEvent(&e)) { |
| 118 |
< |
if (e.type == SDL_QUIT) |
| 119 |
< |
break; |
| 112 |
> |
// 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 |
|
} |
| 180 |
|
} |
| 181 |
|
|
