aboutsummaryrefslogtreecommitdiffstats
path: root/alc/alcmain.h
diff options
context:
space:
mode:
Diffstat (limited to 'alc/alcmain.h')
-rw-r--r--alc/alcmain.h241
1 files changed, 1 insertions, 240 deletions
diff --git a/alc/alcmain.h b/alc/alcmain.h
index 025ba3d4..e8875184 100644
--- a/alc/alcmain.h
+++ b/alc/alcmain.h
@@ -25,6 +25,7 @@
#include "core/ambidefs.h"
#include "core/bufferline.h"
#include "core/devformat.h"
+#include "core/device.h"
#include "core/filters/splitter.h"
#include "core/hrtf.h"
#include "core/mixer/defs.h"
@@ -32,253 +33,13 @@
#include "intrusive_ptr.h"
#include "vector.h"
-class BFormatDec;
struct ALbuffer;
struct ALeffect;
struct ALfilter;
-struct BackendBase;
-struct Compressor;
-struct ContextBase;
-struct EffectState;
-struct UhjEncoder;
-struct bs2b;
using uint = unsigned int;
-#define MIN_OUTPUT_RATE 8000
-#define MAX_OUTPUT_RATE 192000
-#define DEFAULT_OUTPUT_RATE 44100
-
-#define DEFAULT_UPDATE_SIZE 882 /* 20ms */
-#define DEFAULT_NUM_UPDATES 3
-
-
-enum class DeviceType : unsigned char {
- Playback,
- Capture,
- Loopback
-};
-
-
-enum class RenderMode : unsigned char {
- Normal,
- Pairwise,
- Hrtf
-};
-
-
-struct InputRemixMap {
- struct TargetMix { Channel channel; float mix; };
-
- Channel channel;
- std::array<TargetMix,2> targets;
-};
-
-
-/* Maximum delay in samples for speaker distance compensation. */
-#define MAX_DELAY_LENGTH 1024
-
-struct DistanceComp {
- struct ChanData {
- float Gain{1.0f};
- uint Length{0u}; /* Valid range is [0...MAX_DELAY_LENGTH). */
- float *Buffer{nullptr};
- };
-
- std::array<ChanData,MAX_OUTPUT_CHANNELS> mChannels;
- al::FlexArray<float,16> mSamples;
-
- DistanceComp(size_t count) : mSamples{count} { }
-
- static std::unique_ptr<DistanceComp> Create(size_t numsamples)
- { return std::unique_ptr<DistanceComp>{new(FamCount(numsamples)) DistanceComp{numsamples}}; }
-
- DEF_FAM_NEWDEL(DistanceComp, mSamples)
-};
-
-
-struct BFChannelConfig {
- float Scale;
- uint Index;
-};
-
-
-struct MixParams {
- /* Coefficient channel mapping for mixing to the buffer. */
- std::array<BFChannelConfig,MAX_OUTPUT_CHANNELS> AmbiMap{};
-
- al::span<FloatBufferLine> Buffer;
-};
-
-struct RealMixParams {
- al::span<const InputRemixMap> RemixMap;
- std::array<uint,MaxChannels> ChannelIndex{};
-
- al::span<FloatBufferLine> Buffer;
-};
-
-enum {
- // Frequency was requested by the app or config file
- FrequencyRequest,
- // Channel configuration was requested by the config file
- ChannelsRequest,
- // Sample type was requested by the config file
- SampleTypeRequest,
-
- // Specifies if the DSP is paused at user request
- DevicePaused,
- // Specifies if the device is currently running
- DeviceRunning,
-
- DeviceFlagsCount
-};
-
-struct DeviceBase {
- std::atomic<bool> Connected{true};
- const DeviceType Type{};
-
- uint Frequency{};
- uint UpdateSize{};
- uint BufferSize{};
-
- DevFmtChannels FmtChans{};
- DevFmtType FmtType{};
- bool IsHeadphones{false};
- uint mAmbiOrder{0};
- float mXOverFreq{400.0f};
- /* For DevFmtAmbi* output only, specifies the channel order and
- * normalization.
- */
- DevAmbiLayout mAmbiLayout{DevAmbiLayout::Default};
- DevAmbiScaling mAmbiScale{DevAmbiScaling::Default};
-
- std::string DeviceName;
-
- // Device flags
- std::bitset<DeviceFlagsCount> Flags{};
-
- uint NumAuxSends{};
-
- /* Rendering mode. */
- RenderMode mRenderMode{RenderMode::Normal};
-
- /* The average speaker distance as determined by the ambdec configuration,
- * HRTF data set, or the NFC-HOA reference delay. Only used for NFC.
- */
- float AvgSpeakerDist{0.0f};
-
- uint SamplesDone{0u};
- std::chrono::nanoseconds ClockBase{0};
- std::chrono::nanoseconds FixedLatency{0};
-
- /* Temp storage used for mixer processing. */
- alignas(16) float ResampledData[BufferLineSize];
- alignas(16) float FilteredData[BufferLineSize];
- union {
- alignas(16) float HrtfSourceData[BufferLineSize + HrtfHistoryLength];
- alignas(16) float NfcSampleData[BufferLineSize];
- };
-
- /* Persistent storage for HRTF mixing. */
- alignas(16) float2 HrtfAccumData[BufferLineSize + HrirLength + HrtfDirectDelay];
-
- /* Mixing buffer used by the Dry mix and Real output. */
- al::vector<FloatBufferLine, 16> MixBuffer;
-
- /* The "dry" path corresponds to the main output. */
- MixParams Dry;
- uint NumChannelsPerOrder[MaxAmbiOrder+1]{};
-
- /* "Real" output, which will be written to the device buffer. May alias the
- * dry buffer.
- */
- RealMixParams RealOut;
-
- /* HRTF state and info */
- std::unique_ptr<DirectHrtfState> mHrtfState;
- al::intrusive_ptr<HrtfStore> mHrtf;
- uint mIrSize{0};
-
- /* Ambisonic-to-UHJ encoder */
- std::unique_ptr<UhjEncoder> mUhjEncoder;
-
- /* Ambisonic decoder for speakers */
- std::unique_ptr<BFormatDec> AmbiDecoder;
-
- /* Stereo-to-binaural filter */
- std::unique_ptr<bs2b> Bs2b;
-
- using PostProc = void(DeviceBase::*)(const size_t SamplesToDo);
- PostProc PostProcess{nullptr};
-
- std::unique_ptr<Compressor> Limiter;
-
- /* Delay buffers used to compensate for speaker distances. */
- std::unique_ptr<DistanceComp> ChannelDelays;
-
- /* Dithering control. */
- float DitherDepth{0.0f};
- uint DitherSeed{0u};
-
- /* Running count of the mixer invocations, in 31.1 fixed point. This
- * actually increments *twice* when mixing, first at the start and then at
- * the end, so the bottom bit indicates if the device is currently mixing
- * and the upper bits indicates how many mixes have been done.
- */
- RefCount MixCount{0u};
-
- // Contexts created on this device
- std::atomic<al::FlexArray<ContextBase*>*> mContexts{nullptr};
-
- /* This lock protects the device state (format, update size, etc) from
- * being from being changed in multiple threads, or being accessed while
- * being changed. It's also used to serialize calls to the backend.
- */
- std::mutex StateLock;
- std::unique_ptr<BackendBase> Backend;
-
-
- DeviceBase(DeviceType type);
- DeviceBase(const DeviceBase&) = delete;
- DeviceBase& operator=(const DeviceBase&) = delete;
- ~DeviceBase();
-
- uint bytesFromFmt() const noexcept { return BytesFromDevFmt(FmtType); }
- uint channelsFromFmt() const noexcept { return ChannelsFromDevFmt(FmtChans, mAmbiOrder); }
- uint frameSizeFromFmt() const noexcept { return bytesFromFmt() * channelsFromFmt(); }
-
- uint waitForMix() const noexcept
- {
- uint refcount;
- while((refcount=MixCount.load(std::memory_order_acquire))&1) {
- }
- return refcount;
- }
-
- void ProcessHrtf(const size_t SamplesToDo);
- void ProcessAmbiDec(const size_t SamplesToDo);
- void ProcessAmbiDecStablized(const size_t SamplesToDo);
- void ProcessUhj(const size_t SamplesToDo);
- void ProcessBs2b(const size_t SamplesToDo);
-
- inline void postProcess(const size_t SamplesToDo)
- { if LIKELY(PostProcess) (this->*PostProcess)(SamplesToDo); }
-
- void renderSamples(void *outBuffer, const uint numSamples, const size_t frameStep);
-
- /* Caller must lock the device state, and the mixer must not be running. */
-#ifdef __USE_MINGW_ANSI_STDIO
- [[gnu::format(gnu_printf,2,3)]]
-#else
- [[gnu::format(printf,2,3)]]
-#endif
- void handleDisconnect(const char *msg, ...);
-
- DISABLE_ALLOC()
-};
-
-
struct BufferSubList {
uint64_t FreeMask{~0_u64};
ALbuffer *Buffers{nullptr}; /* 64 */