ref: 6d815d2f620af548f0d7c9c00281c16656c5f1b1
dir: /src/helpers/sampbuf.c/
/* _______ ____ __ ___ ___
* \ _ \ \ / \ / \ \ / / ' ' '
* | | \ \ | | || | \/ | . .
* | | | | | | || ||\ /| |
* | | | | | | || || \/ | | ' ' '
* | | | | | | || || | | . .
* | |_/ / \ \__// || | |
* /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
* / \
* / . \
* sampbuf.c - Helper for allocating sample / / \ \
* buffers. | < / \_
* | \/ /\ /
* By entheh. \_ / > /
* | \ / /
* | ' /
* \__/
*/
#include <stdlib.h>
#include "dumb.h"
/* DEPRECATED */
sample_t **create_sample_buffer(int n_channels, long length)
{
int i;
sample_t **samples = malloc(n_channels * sizeof(*samples));
if (!samples) return NULL;
samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
if (!samples[0]) {
free(samples);
return NULL;
}
for (i = 1; i < n_channels; i++) samples[i] = samples[i-1] + length;
return samples;
}
sample_t **allocate_sample_buffer(int n_channels, long length)
{
int i;
sample_t **samples = malloc(((n_channels + 1) >> 1) * sizeof(*samples));
if (!samples) return NULL;
samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
if (!samples[0]) {
free(samples);
return NULL;
}
for (i = 1; i < (n_channels + 1) >> 1; i++) samples[i] = samples[i-1] + length*2;
return samples;
}
void destroy_sample_buffer(sample_t **samples)
{
if (samples) {
free(samples[0]);
free(samples);
}
}