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41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
#include "layout.h"
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#include "../vgmstream.h"
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/* Decodes samples for flat streams.
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* Data forms a single stream, and the decoder may internally skip chunks and move offsets as needed. */
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void render_vgmstream_flat(sample_t * buffer, int32_t sample_count, VGMSTREAM * vgmstream) {
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int samples_written = 0;
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int samples_per_frame, samples_this_block;
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samples_per_frame = get_vgmstream_samples_per_frame(vgmstream);
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samples_this_block = vgmstream->num_samples; /* do all samples if possible */
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while (samples_written < sample_count) {
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int samples_to_do;
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if (vgmstream->loop_flag && vgmstream_do_loop(vgmstream)) {
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/* handle looping */
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continue;
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}
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samples_to_do = vgmstream_samples_to_do(samples_this_block, samples_per_frame, vgmstream);
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if (samples_to_do > sample_count - samples_written)
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samples_to_do = sample_count - samples_written;
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if (samples_to_do == 0) {
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VGM_LOG("layout_flat: wrong samples_to_do 0 found\n"); /* could happen when calling render at EOF? */
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//VGM_LOG("layout_flat: tb=%i sib=%i, spf=%i\n", samples_this_block, vgmstream->samples_into_block, samples_per_frame);
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memset(buffer + samples_written*vgmstream->channels, 0, (sample_count - samples_written) * vgmstream->channels * sizeof(sample_t));
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break;
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}
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decode_vgmstream(vgmstream, samples_written, samples_to_do, buffer);
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samples_written += samples_to_do;
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vgmstream->current_sample += samples_to_do;
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vgmstream->samples_into_block += samples_to_do;
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}
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}
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