diff options
| author | Michael Pavone <pavone@retrodev.com> | 2016-05-01 13:36:14 -0700 |
|---|---|---|
| committer | Michael Pavone <pavone@retrodev.com> | 2016-05-01 13:36:14 -0700 |
| commit | dfb5ea9cf695c24d24e451da24d384dd69634d43 (patch) | |
| tree | 695a8cc1883a6fa919b2bbc0d22009f03fe96772 /blastem.c | |
| parent | 5be1df76921a1f7ad103dca3e7f731fa4a53d254 (diff) | |
Made low pass filter frequency configurable
Diffstat (limited to 'blastem.c')
| -rw-r--r-- | blastem.c | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -32,6 +32,7 @@ uint32_t MCLKS_PER_68K; #define MCLKS_PER_Z80 15 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16) #define DEFAULT_SYNC_INTERVAL MCLKS_LINE +#define DEFAULT_LOWPASS_CUTOFF 3390 //TODO: Figure out the exact value for this #define LINES_NTSC 262 @@ -898,11 +899,14 @@ genesis_context *alloc_init_genesis(rom_info *rom, int fps, uint32_t ym_opts) char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0").ptrval; gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL; + char * lowpass_cutoff_str = tern_find_path(config, "audio\0lowpass_cutoff\0").ptrval; + uint32_t lowpass_cutoff = lowpass_cutoff_str ? atoi(lowpass_cutoff_str) : DEFAULT_LOWPASS_CUTOFF; + gen->ym = malloc(sizeof(ym2612_context)); - ym_init(gen->ym, render_sample_rate(), gen->master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_opts); + ym_init(gen->ym, render_sample_rate(), gen->master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_opts, lowpass_cutoff); gen->psg = malloc(sizeof(psg_context)); - psg_init(gen->psg, render_sample_rate(), gen->master_clock, MCLKS_PER_PSG, render_audio_buffer()); + psg_init(gen->psg, render_sample_rate(), gen->master_clock, MCLKS_PER_PSG, render_audio_buffer(), lowpass_cutoff); gen->z80 = calloc(1, sizeof(z80_context)); #ifndef NO_Z80 |