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Converted the WAVE sound device to stereo (for MESS).

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This commit is contained in:
Curt Coder 2009-05-04 13:18:58 +00:00
parent 1067adb1a1
commit 91a7d9908b
1 changed files with 18 additions and 13 deletions
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21
src/emu/sound/wave.c
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@ -19,8 +19,6 @@
#define ALWAYS_PLAY_SOUND 0 #define ALWAYS_PLAY_SOUND 0
static STREAM_UPDATE( wave_sound_update ) static STREAM_UPDATE( wave_sound_update )
{ {
#ifdef MESS #ifdef MESS
@ -29,26 +27,33 @@ static STREAM_UPDATE( wave_sound_update )
cassette_state state; cassette_state state;
double time_index; double time_index;
double duration; double duration;
stream_sample_t *buffer = outputs[0]; stream_sample_t *left_buffer = outputs[0];
stream_sample_t *right_buffer = outputs[1];
int i; int i;
state = cassette_get_state(image); state = cassette_get_state(image);
state &= CASSETTE_MASK_UISTATE | CASSETTE_MASK_MOTOR | CASSETTE_MASK_SPEAKER; state &= CASSETTE_MASK_UISTATE | CASSETTE_MASK_MOTOR | CASSETTE_MASK_SPEAKER;
if (image_exists(image) && (ALWAYS_PLAY_SOUND || (state == (CASSETTE_PLAY | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED)))) if (image_exists(image) && (ALWAYS_PLAY_SOUND || (state == (CASSETTE_PLAY | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED))))
{ {
cassette = cassette_get_image(image); cassette = cassette_get_image(image);
time_index = cassette_get_position(image); time_index = cassette_get_position(image);
duration = ((double) samples) / image->machine->sample_rate; duration = ((double) samples) / image->machine->sample_rate;
cassette_get_samples(cassette, 0, time_index, duration, samples, 2, buffer, CASSETTE_WAVEFORM_16BIT); cassette_get_samples(cassette, 0, time_index, duration, samples, 2, left_buffer, CASSETTE_WAVEFORM_16BIT);
cassette_get_samples(cassette, 1, time_index, duration, samples, 2, right_buffer, CASSETTE_WAVEFORM_16BIT);
for (i = samples-1; i >= 0; i--) for (i = samples - 1; i >= 0; i--)
buffer[i] = ((INT16 *) buffer)[i]; {
left_buffer[i] = ((INT16 *) left_buffer)[i];
right_buffer[i] = ((INT16 *) right_buffer)[i];
}
} }
else else
{ {
memset(buffer, 0, sizeof(*buffer) * samples); memset(left_buffer, 0, sizeof(*left_buffer) * samples);
memset(right_buffer, 0, sizeof(*right_buffer) * samples);
} }
#endif #endif
} }
@ -65,7 +70,7 @@ static DEVICE_START( wave )
#ifdef MESS #ifdef MESS
image = devtag_get_device( device->machine, (const char *)device->static_config ); image = devtag_get_device( device->machine, (const char *)device->static_config );
#endif #endif
stream_create(device, 0, 1, device->machine->sample_rate, (void *)image, wave_sound_update); stream_create(device, 0, 2, device->machine->sample_rate, (void *)image, wave_sound_update);
} }