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Fix mixing

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This commit is contained in:
Zachary Hall 2024-10-17 10:28:22 -07:00
parent b52a316511
commit 480311b03e
1 changed files with 5 additions and 5 deletions
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10
backends/playback/zsm/zsm_backend.hpp
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@ -134,11 +134,11 @@ class ZsmBackend : public PlaybackBackend {
ym_resample_len /= sizeof(int16_t); ym_resample_len /= sizeof(int16_t);
for (size_t i = 0; i < samples / 2; i++) { for (size_t i = 0; i < samples / 2; i++) {
size_t j = i * 2; size_t j = i * 2;
int32_t psg[2] = {psg_ptr[j], psg_ptr[j + 1]}; int16_t psg[2] = {psg_ptr[j] >> 1, psg_ptr[j + 1] >> 1};
int32_t pcm[2] = {pcm_ptr[j], pcm_ptr[j + 1]}; int16_t pcm[2] = {pcm_ptr[j] >> 1, pcm_ptr[j + 1] >> 1};
int32_t vera[2] = {psg[0] + pcm[0], psg[1] + pcm[1]}; int16_t vera[2] = {psg[0] + pcm[0], psg[1] + pcm[1]};
int32_t fm[2] = {ym_resample_ptr[j], ym_resample_ptr[j + 1]}; int16_t fm[2] = {ym_resample_ptr[j], ym_resample_ptr[j + 1]};
int16_t mix[2] = {(vera[0] + fm[0]) / 3, (vera[1] + fm[1]) / 3}; int16_t mix[2] = {vera[0] + (fm[0] >> 1), vera[1] + (fm[1] >> 1)};
out_ptr[j++] = mix[0]; out_ptr[j++] = mix[0];
out_ptr[j++] = mix[1]; out_ptr[j++] = mix[1];
} }