source/src/qt/sound-drivers/sound_buffer_qt.h

   1 #pragma once
   2
   3 #include <memory>
   4 #include <QIODevice>
   5 #include "../../fifo_templates.h"
   6
   7 QT_BEGIN_NAMESPACE
   8
   9
  10 class DLL_PREFIX SOUND_BUFFER_QT : public QIODevice
  11 {
  12
  13     Q_OBJECT
  14 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
  15         using QIODeviceBase::OpenMode;
  16         using QIODeviceBase::OpenModeFlag;
  17 #else
  18         using QIODevice::OpenMode;
  19         using QIODevice::OpenModeFlag;
  20 #endif
  21         using BUFFER_TYPE = FIFO_BASE::LOCKED_RINGBUFFER<uint8_t>;
  22 protected:
  23         std::shared_ptr<BUFFER_TYPE>m_buffer;
  24 public:
  25         SOUND_BUFFER_QT(uint64_t depth = 0, QObject *parent = nullptr);
  26         ~SOUND_BUFFER_QT();
  27
  28         virtual bool isSequential() const override;
  29         virtual bool open(OpenMode flags) override;
  30         virtual void close() override;
  31
  32         virtual qint64 size() const override;
  33
  34         virtual qint64 bytesToWrite() const override;
  35         virtual qint64 bytesAvailable() const override;
  36
  37         virtual qint64 pos() const override;
  38         virtual bool seek(qint64 pos) override;
  39
  40         virtual bool   atEnd() const override;
  41         virtual bool   reset() override;
  42         // Internal Functions.
  43 protected:
  44         virtual qint64 readData(char *data, qint64 len) override;
  45         virtual qint64 writeData(const char *data, qint64 len) override;
  46
  47         // For thread safing calling.
  48         std::atomic<qint64> wroteFromBefore;
  49         std::atomic<bool>   is_emitted;
  50
  51         // Unique functions
  52 public:
  53         virtual bool resize(qint64 sz);
  54         virtual qint64 real_buffer_size();
  55         virtual qint64 read_from_buffer(char *data, qint64 len);
  56         virtual qint64 write_to_buffer(const char *data, qint64 len);
  57 public slots:
  58         void   _emit_for_write();
  59 signals:
  60         int   _signal_for_write();
  61 };
  62
  63 QT_END_NAMESPACE