#define SOUND_VOLUME_LEFT(x) (stereo_volume[x])
#define SOUND_VOLUME_RIGHT(x) (stereo_volume[SOUND_MAX_LEFT2RIGHT-x])
+#define SAME_SOUND_NR(x,y) ((x).nr == (y).nr)
+#define SAME_SOUND_DATA(x,y) ((x).data_ptr == (y).data_ptr)
#if 0
struct SoundHeader_SUN
};
#endif
+#if defined(AUDIO_UNIX_NATIVE)
+struct SoundHeader_WAV
+{
+ unsigned short compression_code;
+ unsigned short num_channels;
+ unsigned long sample_rate;
+ unsigned long bytes_per_second;
+ unsigned short block_align;
+ unsigned short bits_per_sample;
+};
+#endif
+
struct AudioFormatInfo
{
boolean stereo; /* availability of stereo sound */
int type;
int format;
- long data_len;
- void *data_ptr;
+ void *data_ptr; /* pointer to first sample (8 or 16 bit) */
+ long data_len; /* number of samples, NOT number of bytes */
};
typedef struct SampleInfo SoundInfo;
typedef struct SampleInfo MusicInfo;
int type;
int format;
- long data_len;
- void *data_ptr;
+ void *data_ptr; /* pointer to first sample (8 or 16 bit) */
+ long data_len; /* number of samples, NOT number of bytes */
#if defined(TARGET_ALLEGRO)
int voice;
return;
}
- /* check if sound is already being played (and how often) */
+ /* check if (and how often) this sound sample is already playing */
for (k=0, i=audio.first_sound_channel; i<audio.num_channels; i++)
- if (mixer[i].active && mixer[i].nr == snd_ctrl.nr)
+ if (mixer[i].active && SAME_SOUND_DATA(mixer[i], snd_ctrl))
k++;
#if 0
{
for(i=audio.first_sound_channel; i<audio.num_channels; i++)
{
- if (mixer[i].active && mixer[i].nr == snd_ctrl.nr)
+ if (mixer[i].active && SAME_SOUND_DATA(mixer[i], snd_ctrl))
{
#if 0
printf("RESETTING EXPIRATION FOR SOUND %d\n", snd_ctrl.nr);
return;
}
+#if 0
+ printf("PLAYING NEW SOUND %d\n", snd_ctrl.nr);
+#endif
+
/* don't play sound more than n times simultaneously (with n == 2 for now) */
if (k >= 2)
{
int playing_time = playing_current - mixer[i].playing_starttime;
int actual;
- if (!mixer[i].active || mixer[i].nr != snd_ctrl.nr)
+ if (!mixer[i].active || !SAME_SOUND_NR(mixer[i], snd_ctrl))
continue;
actual = 1000 * playing_time / mixer[i].data_len;
}
for(i=audio.first_sound_channel; i<audio.num_channels; i++)
- if (mixer[i].nr == snd_ctrl.nr || ALL_SOUNDS(snd_ctrl))
+ if (SAME_SOUND_NR(mixer[i], snd_ctrl) || ALL_SOUNDS(snd_ctrl))
Mixer_FadeChannel(i);
}
else if (IS_STOPPING(snd_ctrl)) /* stop existing sound or music */
}
for(i=audio.first_sound_channel; i<audio.num_channels; i++)
- if (mixer[i].nr == snd_ctrl.nr || ALL_SOUNDS(snd_ctrl))
+ if (SAME_SOUND_NR(mixer[i], snd_ctrl) || ALL_SOUNDS(snd_ctrl))
Mixer_StopChannel(i);
#if defined(AUDIO_UNIX_NATIVE)
{
SoundInfo *snd_info;
#if defined(AUDIO_UNIX_NATIVE)
+ struct SoundHeader_WAV header;
+#if 0
byte sound_header_buffer[WAV_HEADER_SIZE];
+ int i;
+#endif
char chunk_name[CHUNK_ID_LEN + 1];
int chunk_size;
FILE *file;
- int i;
#endif
if (!audio.sound_available)
}
/* read chunk id "RIFF" */
- getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN);
+ getFileChunkLE(file, chunk_name, &chunk_size);
if (strcmp(chunk_name, "RIFF") != 0)
{
Error(ERR_WARN, "missing 'RIFF' chunk of sound file '%s'", filename);
}
/* read "RIFF" type id "WAVE" */
- getFileChunk(file, chunk_name, NULL, BYTE_ORDER_LITTLE_ENDIAN);
+ getFileChunkLE(file, chunk_name, NULL);
if (strcmp(chunk_name, "WAVE") != 0)
{
Error(ERR_WARN, "missing 'WAVE' type ID of sound file '%s'", filename);
return NULL;
}
- while (getFileChunk(file, chunk_name, &chunk_size, BYTE_ORDER_LITTLE_ENDIAN))
+ while (getFileChunkLE(file, chunk_name, &chunk_size))
{
if (strcmp(chunk_name, "fmt ") == 0)
{
- /* read header information */
- for (i=0; i < MIN(chunk_size, WAV_HEADER_SIZE); i++)
- sound_header_buffer[i] = fgetc(file);
+ if (chunk_size < WAV_HEADER_SIZE)
+ {
+ Error(ERR_WARN, "sound file '%s': chunk 'fmt ' too short", filename);
+ fclose(file);
+ free(snd_info);
+ return NULL;
+ }
+
+ header.compression_code = getFile16BitLE(file);
+ header.num_channels = getFile16BitLE(file);
+ header.sample_rate = getFile32BitLE(file);
+ header.bytes_per_second = getFile32BitLE(file);
+ header.block_align = getFile16BitLE(file);
+ header.bits_per_sample = getFile16BitLE(file);
if (chunk_size > WAV_HEADER_SIZE)
ReadUnusedBytesFromFile(file, chunk_size - WAV_HEADER_SIZE);
+
+ if (header.compression_code != 1)
+ {
+ Error(ERR_WARN, "sound file '%s': compression code %d not supported",
+ filename, header.compression_code);
+ fclose(file);
+ free(snd_info);
+ return NULL;
+ }
+
+ if (header.num_channels != 1)
+ {
+ Error(ERR_WARN, "sound file '%s': number of %d channels not supported",
+ filename, header.num_channels);
+ fclose(file);
+ free(snd_info);
+ return NULL;
+ }
+
+ if (header.bits_per_sample != 8 && header.bits_per_sample != 16)
+ {
+ Error(ERR_WARN, "sound file '%s': %d bits per sample not supported",
+ filename, header.bits_per_sample);
+ fclose(file);
+ free(snd_info);
+ return NULL;
+ }
+
+ /* warn, but accept wrong sample rate (may be only slightly different) */
+ if (header.sample_rate != DEFAULT_AUDIO_SAMPLE_RATE)
+ Error(ERR_WARN, "sound file '%s': wrong sample rate %d instead of %d",
+ filename, header.sample_rate, DEFAULT_AUDIO_SAMPLE_RATE);
+
+#if 0
+ printf("WAV file: '%s'\n", filename);
+ printf(" Compression code: %d'\n", header.compression_code);
+ printf(" Number of channels: %d'\n", header.num_channels);
+ printf(" Sample rate: %ld'\n", header.sample_rate);
+ printf(" Average bytes per second: %ld'\n", header.bytes_per_second);
+ printf(" Block align: %d'\n", header.block_align);
+ printf(" Significant bits per sample: %d'\n", header.bits_per_sample);
+#endif
}
else if (strcmp(chunk_name, "data") == 0)
{
return NULL;
}
- snd_info->format = AUDIO_FORMAT_U8;
+ if (header.bits_per_sample == 8)
+ snd_info->format = AUDIO_FORMAT_U8;
+ else /* header.bits_per_sample == 16 */
+ {
+ snd_info->format = AUDIO_FORMAT_S16;
+ snd_info->data_len /= 2; /* correct number of samples */
+ }
#endif /* AUDIO_UNIX_NATIVE */
projects / rocksndiamonds.git / blobdiff