diff options
Diffstat (limited to 'psg.c')
| -rw-r--r-- | psg.c | 8 |
1 files changed, 5 insertions, 3 deletions
@@ -3,12 +3,14 @@ #include <string.h> #include <stdlib.h> -void psg_init(psg_context * context, uint32_t sample_rate, uint32_t clock_rate, uint32_t samples_frame) +void psg_init(psg_context * context, uint32_t sample_rate, uint32_t master_clock, uint32_t clock_div, uint32_t samples_frame) { memset(context, 0, sizeof(*context)); context->audio_buffer = malloc(sizeof(*context->audio_buffer) * samples_frame); context->back_buffer = malloc(sizeof(*context->audio_buffer) * samples_frame); - context->buffer_inc = (double)sample_rate / (double)clock_rate; + double clock_rate = (double)master_clock / (double)clock_div; + context->buffer_inc = ((double)sample_rate / (double)master_clock) * clock_div; + context->clock_inc = clock_div; context->samples_frame = samples_frame; for (int i = 0; i < 4; i++) { context->volume[i] = 0xF; @@ -106,7 +108,7 @@ void psg_run(psg_context * context, uint32_t cycles) render_wait_psg(context); } } - context->cycles++; + context->cycles += context->clock_inc; } } |