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Support Volume Steps now for easier support of fractions

This commit is contained in:
Jaby 2022-08-31 17:17:17 +02:00
parent fde4ae9c71
commit c63bdb8e3a
2 changed files with 18 additions and 11 deletions
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27
include/PSX/SPU/SPU_Ports.hpp
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@ -22,9 +22,11 @@ namespace SPU {
}; };
struct __no_align SweepVolume { struct __no_align SweepVolume {
static constexpr int16_t VolumeLevelStep100 = (I16_MAX/100); typedef int16_t VolumeStep;
static constexpr int16_t VolumeLevelStep1000 = (I16_MAX/1000);
static constexpr VolumeStep VolumeMax = 1000;
static constexpr VolumeStep SingleVolumeStep = (I16_MAX >> 1)/VolumeMax;
enum Direction { enum Direction {
Increase = 0, Increase = 0,
Decrease = 1, Decrease = 1,
@ -39,17 +41,22 @@ namespace SPU {
constexpr SweepVolume() = default; constexpr SweepVolume() = default;
static constexpr int16_t VolumeLevelPercent(double percent) { constexpr auto& set_volume_percent(double percent) {
return static_cast<int16_t>((I16_MAX/100.0)*percent); this->raw_value = bit::value::set_normalized(this->raw_value, static_cast<int16_t>((I16_MAX/100.0)*percent), __start_end_bit2_start_length(0, 14));
}
constexpr auto& set_volume(int16_t volume) {
this->raw_value = bit::value::set_normalized(this->raw_value, static_cast<int16_t>(volume >> 1), __start_end_bit2_start_length(0, 14));
return *this; return *this;
} }
constexpr int16_t get_volume() const { //A value between 0 and 1000
return bit::cast<int16_t>(bit::value::get_normalized(this->raw_value, __start_end_bit2_start_length(0, 14))); constexpr auto& set_volume_step(VolumeStep volume_step) {
volume_step *= SingleVolumeStep;
this->raw_value = bit::value::set_normalized(this->raw_value, volume_step, __start_end_bit2_start_length(0, 14));
return *this;
}
//A value between 0 and 1000
constexpr VolumeStep get_volume_step() const {
return (bit::value::get_normalized(this->raw_value, __start_end_bit2_start_length(0, 14))/SingleVolumeStep);
} }
io_class__2option_map(volume_mode, sweep_mode, 15); io_class__2option_map(volume_mode, sweep_mode, 15);

2
src/Library/src/BootLoader/start.cpp
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@ -16,7 +16,7 @@ namespace JabyEngine {
} }
static void setup() { static void setup() {
static constexpr auto StartVol = ::SPU::SweepVolume().set_volume_mode().set_volume(::SPU::SweepVolume::VolumeLevelPercent(50.0)); static constexpr auto StartVol = ::SPU::SweepVolume().set_volume_mode().set_volume_percent(50.0);
io_class__volatile_assign(::SPU::MainVolume::Left, StartVol); io_class__volatile_assign(::SPU::MainVolume::Left, StartVol);
io_class__volatile_assign(::SPU::MainVolume::Right, StartVol); io_class__volatile_assign(::SPU::MainVolume::Right, StartVol);