mirror/bsnes
1
0
Fork 0
mirror of https://github.com/bsnes-emu/bsnes.git synced 2025-09-01 03:01:59 +02:00
Code Issues Projects Releases Wiki Activity

Update to v106r50 release.

Browse Source 
byuu says:

Changelog:

  - emulator/video,audio: various cleanups
  - emulator/audio: removed reverb effect (it breaks very badly on
    high-frequency systems)
  - emulator/audio: the Nyquist anti-aliasing lowpass filter is now
    generated automatically instead of set per-core
      - at 44.1KHz output, it's set to 22KHz; at 48KHz, it's set to
        22KHz; at 96KHz, it's set to 25KHz
      - this filter now takes the bsnes emulation speed setting into
        account
  - all system/video.cpp files removed; inlined in System::power() and
    Interface::set() instead
  - sfc/cpu: pre-compute `HTIME` as `HTIME+1<<2` for faster comparisons of
    HIRQs
  - sfc/cpu: re-add check to block IRQs on the last dot of each frame
    (minor speed hit)
  - hiro/gtk3: fixed headers for Linux compilation finally
  - hiro/gtk,qt: fixed settings.cpp logic so initial values are used
    when no settings.bml file exists
  - hiro/gtk: started a minor experiment to specify theming information
    in settings.bml files
  - nall/dsp: allow the precision type (double) to be overridden (to
    float)
  - nall: add some helpers for generating pre-compiled headers
      - it was a failure to try using them for higan, however ...
  - nall: add some helpers for reading fallback values from empty
    `Markup::Node[search]` statements

Todo:

  - CRITICAL: a lot of my IRQ/NMI/HDMA timing tests are failing with the
    fast PPU ... need to figure out why
  - space between Emulator::video functions and Emulator::audio
    functions in gb/system/system.cpp
  - remove Audio/Reverb/Enable from settings.bml in target-bsnes
This commit is contained in:
Tim Allen
2018-07-21 21:06:40 +10:00
parent 65a3e6c676
commit 35ff15f83e
60 changed files with 218 additions and 267 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
nall/dsp/resampler/cubic.hpp
View File

@@ -1,26 +1,27 @@
#pragma once
#include <nall/queue.hpp>
#include <nall/dsp/dsp.hpp>
namespace nall { namespace DSP { namespace Resampler {
struct Cubic {
inline auto reset(double inputFrequency, double outputFrequency, uint queueSize = 0) -> void;
inline auto reset(real inputFrequency, real outputFrequency, uint queueSize = 0) -> void;
inline auto pending() const -> bool { return samples.pending(); }
inline auto read() -> double { return samples.read(); }
inline auto write(double sample) -> void;
inline auto read() -> real { return samples.read(); }
inline auto write(real sample) -> void;
private:
double inputFrequency;
double outputFrequency;
real inputFrequency;
real outputFrequency;
double ratio;
double fraction;
double history[4];
queue<double> samples;
real ratio;
real fraction;
real history[4];
queue<real> samples;
};
auto Cubic::reset(double inputFrequency, double outputFrequency, uint queueSize) -> void {
auto Cubic::reset(real inputFrequency, real outputFrequency, uint queueSize) -> void {
this->inputFrequency = inputFrequency;
this->outputFrequency = outputFrequency;
if(!queueSize) queueSize = outputFrequency * 0.02; //20ms
@@ -31,7 +32,7 @@ auto Cubic::reset(double inputFrequency, double outputFrequency, uint queueSize)
samples.resize(queueSize);
}
auto Cubic::write(double sample) -> void {
auto Cubic::write(real sample) -> void {
auto& mu = fraction;
auto& s = history;
@@ -41,10 +42,10 @@ auto Cubic::write(double sample) -> void {
s[3] = sample;
while(mu <= 1.0) {
double A = s[3] - s[2] - s[0] + s[1];
double B = s[0] - s[1] - A;
double C = s[2] - s[0];
double D = s[1];
real A = s[3] - s[2] - s[0] + s[1];
real B = s[0] - s[1] - A;
real C = s[2] - s[0];
real D = s[1];
samples.write(A * mu * mu * mu + B * mu * mu + C * mu + D);
mu += ratio;