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Adopt CRTP for SampleSource.

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This commit is contained in:
Thomas Harte 2024-02-01 21:47:44 -05:00
parent 3827929a15
commit c6c9be0b08
14 changed files with 23 additions and 14 deletions
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2
Components/6560/6560.hpp
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@ -17,7 +17,7 @@
namespace MOS::MOS6560 {
// audio state
class AudioGenerator: public ::Outputs::Speaker::SampleSource {
class AudioGenerator: public ::Outputs::Speaker::SampleSource<AudioGenerator> {
public:
AudioGenerator(Concurrency::AsyncTaskQueue<false> &audio_queue);

2
Components/AY38910/AY38910.hpp
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@ -66,7 +66,7 @@ enum class Personality {
This AY has an attached mono or stereo mixer.
*/
template <bool stereo> class AY38910: public ::Outputs::Speaker::SampleSource {
template <bool stereo> class AY38910: public ::Outputs::Speaker::SampleSource<AY38910<stereo>> {
public:
/// Creates a new AY38910.
AY38910(Personality, Concurrency::AsyncTaskQueue<false> &);

3
Components/AudioToggle/AudioToggle.hpp
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@ -16,13 +16,14 @@ namespace Audio {
/*!
Provides a sample source that can programmatically be set to one of two values.
*/
class Toggle: public Outputs::Speaker::SampleSource {
class Toggle: public Outputs::Speaker::SampleSource<Toggle> {
public:
Toggle(Concurrency::AsyncTaskQueue<false> &audio_queue);
void get_samples(std::size_t number_of_samples, std::int16_t *target);
void set_sample_volume_range(std::int16_t range);
void skip_samples(const std::size_t number_of_samples);
static constexpr bool is_stereo = false;
void set_output(bool enabled);
bool get_output() const;

2
Components/KonamiSCC/KonamiSCC.hpp
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@ -20,7 +20,7 @@ namespace Konami {
and five channels of output. The original SCC uses the same wave for channels
four and five, the SCC+ supports different waves for the two channels.
*/
class SCC: public ::Outputs::Speaker::SampleSource {
class SCC: public ::Outputs::Speaker::SampleSource<SCC> {
public:
/// Creates a new SCC.
SCC(Concurrency::AsyncTaskQueue<false> &task_queue);

2
Components/OPx/Implementation/OPLBase.hpp
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@ -13,7 +13,7 @@
namespace Yamaha::OPL {
template <typename Child> class OPLBase: public ::Outputs::Speaker::SampleSource {
template <typename Child> class OPLBase: public ::Outputs::Speaker::SampleSource<Child> {
public:
void write(uint16_t address, uint8_t value) {
if(address & 1) {

1
Components/OPx/OPLL.hpp
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@ -27,6 +27,7 @@ class OPLL: public OPLBase<OPLL> {
/// As per ::SampleSource; provides audio output.
void get_samples(std::size_t number_of_samples, std::int16_t *target);
void set_sample_volume_range(std::int16_t range);
static constexpr bool is_stereo = false;
// The OPLL is generally 'half' as loud as it's told to be. This won't strictly be true in
// rhythm mode, but it's correct for melodic output.

2
Components/SN76489/SN76489.hpp
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@ -13,7 +13,7 @@
namespace TI {
class SN76489: public Outputs::Speaker::SampleSource {
class SN76489: public Outputs::Speaker::SampleSource<SN76489> {
public:
enum class Personality {
SN76489,

3
Machines/Apple/AppleIIgs/Sound.hpp
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@ -16,7 +16,7 @@
namespace Apple::IIgs::Sound {
class GLU: public Outputs::Speaker::SampleSource {
class GLU: public Outputs::Speaker::SampleSource<GLU> {
public:
GLU(Concurrency::AsyncTaskQueue<false> &audio_queue);
@ -37,6 +37,7 @@ class GLU: public Outputs::Speaker::SampleSource {
void get_samples(std::size_t number_of_samples, std::int16_t *target);
void set_sample_volume_range(std::int16_t range);
void skip_samples(const std::size_t number_of_samples);
static constexpr bool is_stereo = false;
private:
Concurrency::AsyncTaskQueue<false> &audio_queue_;

2
Machines/Apple/Macintosh/Audio.hpp
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@ -23,7 +23,7 @@ namespace Apple::Macintosh {
Designed to be clocked at half the rate of the real hardware — i.e.
a shade less than 4Mhz.
*/
class Audio: public ::Outputs::Speaker::SampleSource {
class Audio: public ::Outputs::Speaker::SampleSource<Audio> {
public:
Audio(Concurrency::AsyncTaskQueue<false> &task_queue);

2
Machines/Atari/2600/TIASound.hpp
View File

@ -17,7 +17,7 @@ namespace Atari2600 {
// will give greater resolution to changes in audio state. 1, 2 and 19 are the only divisors of 38.
constexpr int CPUTicksPerAudioTick = 2;
class TIASound: public Outputs::Speaker::SampleSource {
class TIASound: public Outputs::Speaker::SampleSource<TIASound> {
public:
TIASound(Concurrency::AsyncTaskQueue<false> &audio_queue);

2
Machines/Electron/SoundGenerator.hpp
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@ -13,7 +13,7 @@
namespace Electron {
class SoundGenerator: public ::Outputs::Speaker::SampleSource {
class SoundGenerator: public ::Outputs::Speaker::SampleSource<SoundGenerator> {
public:
SoundGenerator(Concurrency::AsyncTaskQueue<false> &audio_queue);

2
Machines/Enterprise/Dave.hpp
View File

@ -26,7 +26,7 @@ enum class Interrupt: uint8_t {
/*!
Models the audio-production subset of Dave's behaviour.
*/
class Audio: public Outputs::Speaker::SampleSource {
class Audio: public Outputs::Speaker::SampleSource<Audio> {
public:
Audio(Concurrency::AsyncTaskQueue<false> &audio_queue);

4
Outputs/Speaker/Implementation/CompoundSource.hpp
View File

@ -21,9 +21,9 @@ namespace Outputs::Speaker {
An owner may optionally assign relative volumes.
*/
template <typename... T> class CompoundSource:
public Outputs::Speaker::SampleSource {
public Outputs::Speaker::SampleSource<CompoundSource<T...>> {
private:
template <typename... S> class CompoundSourceHolder: public Outputs::Speaker::SampleSource {
template <typename... S> class CompoundSourceHolder: public Outputs::Speaker::SampleSource<CompoundSourceHolder<S...>> {
public:
template <bool output_stereo> void get_samples(std::size_t number_of_samples, std::int16_t *target) {
std::memset(target, 0, sizeof(std::int16_t) * number_of_samples);

8
Outputs/Speaker/Implementation/SampleSource.hpp
View File

@ -8,16 +8,22 @@
#pragma once
#include <array>
#include <cstddef>
#include <cstdint>
namespace Outputs::Speaker {
template <bool stereo> struct SampleT;
template <> struct SampleT<true> { using type = std::array<std::uint16_t, 2>; };
template <> struct SampleT<false> { using type = std::uint16_t; };
/*!
A sample source is something that can provide a stream of audio.
This optional base class provides the interface expected to be exposed
by the template parameter to LowpassSpeaker.
*/
template <typename SourceT>
class SampleSource {
public:
/*!
@ -54,7 +60,7 @@ class SampleSource {
/*!
Indicates whether this component will write stereo samples.
*/
static constexpr bool is_stereo = false;
static constexpr bool is_stereo = SourceT::is_stereo;
/*!
Permits a sample source to declare that, averaged over time, it will use only