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https://github.com/ZDoom/gzdoom-gles.git
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65 lines
2 KiB
C
65 lines
2 KiB
C
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/* _______ ____ __ ___ ___
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* \ _ \ \ / \ / \ \ / / ' ' '
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* | | \ \ | | || | \/ | . .
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* | | | | | | || ||\ /| |
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* | | | | | | || || \/ | | ' ' '
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* | | | | | | || || | | . .
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* | |_/ / \ \__// || | |
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* /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
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* / \
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* / . \
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* sampbuf.c - Helper for allocating sample / / \ \
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* buffers. | < / \_
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* | \/ /\ /
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* By entheh. \_ / > /
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* | \ / /
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* | ' /
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* \__/
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*/
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#include <stdlib.h>
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#include "dumb.h"
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/* DEPRECATED */
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sample_t **create_sample_buffer(int n_channels, int32 length)
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{
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int i;
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sample_t **samples = malloc(n_channels * sizeof(*samples));
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if (!samples) return NULL;
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samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
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if (!samples[0]) {
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free(samples);
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return NULL;
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}
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for (i = 1; i < n_channels; i++) samples[i] = samples[i-1] + length;
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return samples;
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}
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sample_t **DUMBEXPORT allocate_sample_buffer(int n_channels, int32 length)
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{
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int i;
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sample_t **samples = malloc(((n_channels + 1) >> 1) * sizeof(*samples));
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if (!samples) return NULL;
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samples[0] = malloc(n_channels * length * sizeof(*samples[0]));
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if (!samples[0]) {
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free(samples);
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return NULL;
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}
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for (i = 1; i < (n_channels + 1) >> 1; i++) samples[i] = samples[i-1] + length*2;
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return samples;
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}
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void DUMBEXPORT destroy_sample_buffer(sample_t **samples)
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{
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if (samples) {
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free(samples[0]);
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free(samples);
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}
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}
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