The-Homebrew-Cloud/Genesis-Plus-GX
2
0
Fork 0
mirror of https://github.com/ekeeke/Genesis-Plus-GX.git synced 2024-11-05 02:15:07 +01:00
Code Issues Packages Projects Releases Wiki Activity
3434f89e3b
Genesis-Plus-GX/source/sound/Fir_Resampler.h

30 lines
989 B
C
Raw Normal View History

~implemented faster/better FIR resampler, removed libsamplerate ~fixed some memory leaks with Blip Buffer ~reverted previous change regarding frame synchronization: always use VSYNC when switched to 60hz (fix video issues in interlace mode 2) ~optimized cell rendering (less byte swapping) ~fixed savestate file version checking
2009-07-22 19:25:41 +02:00
/* Finite impulse response (FIR) resampler with adjustable FIR size */
/* Game_Music_Emu 0.5.2 */
#ifndef FIR_RESAMPLER_H
#define FIR_RESAMPLER_H
#define STEREO 2
#define MAX_RES 32
#define WIDTH 16
#define WRITE_OFFSET (WIDTH * STEREO) - STEREO
#define GAIN 1.0
reverted back to signed long (32-bits) FM samples [fixed]
2010-04-21 14:50:29 +02:00
typedef signed long int sample_t;
~implemented faster/better FIR resampler, removed libsamplerate ~fixed some memory leaks with Blip Buffer ~reverted previous change regarding frame synchronization: always use VSYNC when switched to 60hz (fix video issues in interlace mode 2) ~optimized cell rendering (less byte swapping) ~fixed savestate file version checking
2009-07-22 19:25:41 +02:00
extern int Fir_Resampler_initialize( int new_size );
extern void Fir_Resampler_shutdown( void );
extern void Fir_Resampler_clear( void );
[Core/VDP] * improved sprites processing accuracy. * fixed VBLANK transition line checks. * code cleanup and (minor) optimizations. [Core/Sound] * increased FM internal sample size to 32-bit to avoid overflow when adding channels. * added preliminary emulation of YM2612 DAC precision (can be configured to match real console output). * added configurable roll-off for FIR filtering in High-Quality FM mode. [Wii] *added support to enable/disable Video Encoder Trap Filter: can help reproducing "color blending" as on a real Genesis (composite video only). *added support to configure Video Encoder gamma correction.
2010-02-28 20:55:43 +01:00
extern double Fir_Resampler_time_ratio( double new_factor, double rolloff );
~implemented faster/better FIR resampler, removed libsamplerate ~fixed some memory leaks with Blip Buffer ~reverted previous change regarding frame synchronization: always use VSYNC when switched to 60hz (fix video issues in interlace mode 2) ~optimized cell rendering (less byte swapping) ~fixed savestate file version checking
2009-07-22 19:25:41 +02:00
extern double Fir_Resampler_ratio( void );
extern int Fir_Resampler_max_write( void );
extern sample_t* Fir_Resampler_buffer( void );
extern int Fir_Resampler_written( void );
extern int Fir_Resampler_avail( void );
extern void Fir_Resampler_write( long count );
[Core] ------ * improved 68k accuracy (initial reset timing + auto-vectored interrupts handling). * modified Z80 & 68k cores to directly use external cycle count instead of intermediate counters. * improved Z80 & 68k cpu execution/synchronization accuracy, now use Master Clock as common clock reference. * improved PSG & FM chips synchronization with CPU execution (fixed point precision). * completely rewrote sound output processing & mixing: sound chips are now clocked with exact output frame rate to ensure 100% smooth video & audio playback, with no lag or skipping, while still rendering an accurate number of samples per frame. This will also make fast-forward implementation (video AND sound) more trivial. * improved color accuracy in VDP highlight mode to match results observed on real hardware. * improved sprites processing timing accuracy: fixes (un)masked sprites in Mickey Mania (3D level), Sonic 2 (VS mode). * improved horizontal blanking & HINT/VINT occurrence timing accuracy, as measured on real hardware. * improved H-Counter accuracy in 40-cell mode, as measured on real hardware. * optimized Z80 bus status signals * usual code cleanup [GCN/WII] --------- fixed ASNDLIB exit when returning to game fixed audio/video startup sync modified audio back-end engine according to new audio processing core (see above)
2010-01-24 12:41:53 +01:00
extern int Fir_Resampler_read( sample_t* out, long count );
code cleanup
2010-01-13 23:08:35 +01:00
extern int Fir_Resampler_input_needed( long output_count );
~implemented faster/better FIR resampler, removed libsamplerate ~fixed some memory leaks with Blip Buffer ~reverted previous change regarding frame synchronization: always use VSYNC when switched to 60hz (fix video issues in interlace mode 2) ~optimized cell rendering (less byte swapping) ~fixed savestate file version checking
2009-07-22 19:25:41 +02:00
extern int Fir_Resampler_skip_input( long count );
#endif
Reference in New Issue Copy Permalink