test/pcm.c: Fix SND_PCM_FORMAT_S24 support

The program uses snd_pcm_format_width() wrongly to calculate the sample
size.  It must be snd_pcm_format_physical_width() instead.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/test/pcm.c b/test/pcm.c
index 437d990..ecd0afa 100644 (file)
--- a/test/pcm.c
+++ b/test/pcm.c
@@ -62,8 +62,8 @@ static void generate_sine(const snd_pcm_channel_area_t *areas,
        /* fill the channel areas */
        while (count-- > 0) {
                res = sin(phase) * maxval;
-               ires = res;
-               tmp = (unsigned char *)(&ires);
+               ires.i = res;
+               tmp = ires.c;
                for (chn = 0; chn < channels; chn++) {
                        for (byte = 0; byte < (unsigned int)bps; byte++)
                                *(samples[chn] + byte) = tmp[byte];
@@ -871,7 +871,7 @@ int main(int argc, char *argv[])
        if (verbose > 0)
                snd_pcm_dump(handle, output);
 
-       samples = malloc((period_size * channels * snd_pcm_format_width(format)) / 8);
+       samples = malloc((period_size * channels * snd_pcm_format_physical_width(format)) / 8);
        if (samples == NULL) {
                printf("No enough memory\n");
                exit(EXIT_FAILURE);
@@ -884,8 +884,8 @@ int main(int argc, char *argv[])
        }
        for (chn = 0; chn < channels; chn++) {
                areas[chn].addr = samples;
-               areas[chn].first = chn * snd_pcm_format_width(format);
-               areas[chn].step = channels * snd_pcm_format_width(format);
+               areas[chn].first = chn * snd_pcm_format_physical_width(format);
+               areas[chn].step = channels * snd_pcm_format_physical_width(format);
        }
 
        err = transfer_methods[method].transfer_loop(handle, samples, areas);