mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-26 13:24:50 +01:00
94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
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#include "nolayout.h"
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#include "adx.h"
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#include "gcdsp.h"
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void render_vgmstream_nolayout(sample * buffer, int32_t sample_count, VGMSTREAM * vgmstream) {
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int samples_written=0;
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const int samples_this_block = vgmstream->num_samples;
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int samples_per_frame;
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switch(vgmstream->coding_type) {
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case coding_CRI_ADX:
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samples_per_frame = 32;
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break;
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case coding_NGC_DSP:
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samples_per_frame = 14;
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break;
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}
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while (samples_written<sample_count) {
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int samples_to_do;
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int chan;
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int samples_left_this_block;
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samples_left_this_block = samples_this_block - vgmstream->samples_into_block;
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samples_to_do = samples_left_this_block;
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/* fun loopy crap */
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/* Why did I think this would be any simpler? */
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if (vgmstream->loop_flag) {
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/* is this the loop end? */
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if (vgmstream->current_sample==vgmstream->loop_end_sample) {
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/* restore! */
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memcpy(vgmstream->ch,vgmstream->loop_ch,sizeof(VGMSTREAMCHANNEL)*vgmstream->channels);
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vgmstream->current_sample=vgmstream->loop_sample;
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vgmstream->samples_into_block=vgmstream->loop_samples_into_block;
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continue; /* recalculate stuff */
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}
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/* is this the loop start? */
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if (!vgmstream->hit_loop && vgmstream->current_sample==vgmstream->loop_start_sample) {
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/* save! */
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memcpy(vgmstream->loop_ch,vgmstream->ch,sizeof(VGMSTREAMCHANNEL)*vgmstream->channels);
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vgmstream->loop_sample=vgmstream->current_sample;
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vgmstream->loop_samples_into_block=vgmstream->samples_into_block;
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vgmstream->hit_loop=1;
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}
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/* are we going to hit the loop end during this block? */
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if (vgmstream->current_sample+samples_left_this_block > vgmstream->loop_end_sample) {
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/* only do to just before it */
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samples_to_do = vgmstream->loop_end_sample-vgmstream->current_sample;
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}
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/* are we going to hit the loop start during this block? */
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if (!vgmstream->hit_loop && vgmstream->current_sample+samples_left_this_block > vgmstream->loop_start_sample) {
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/* only do to just before it */
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samples_to_do = vgmstream->loop_start_sample-vgmstream->current_sample;
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}
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}
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if ((vgmstream->samples_into_block%samples_per_frame)+samples_to_do>samples_per_frame) samples_to_do=samples_per_frame-(vgmstream->samples_into_block%samples_per_frame);
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if (samples_written+samples_to_do > sample_count)
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samples_to_do=sample_count-samples_written;
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switch (vgmstream->coding_type) {
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case coding_CRI_ADX:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_adx(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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vgmstream->channels,vgmstream->samples_into_block,
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samples_to_do);
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}
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break;
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case coding_NGC_DSP:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_gcdsp(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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vgmstream->channels,vgmstream->samples_into_block,
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samples_to_do);
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}
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break;
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}
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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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