Move library tree where it belongs

lib-src/portaudio/pa_unix_oss/pa_unix.h

@@ -0,0 +1,141 @@
+/*
+ * PortAudio Portable Real-Time Audio Library
+ * Latest Version at: http://www.portaudio.com
+ * Linux OSS Implementation by douglas repetto and Phil Burk
+ *
+ * Copyright (c) 1999-2000 Phil Burk
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * Any person wishing to distribute modifications to the Software is
+ * requested to send the modifications to the original developer so that
+ * they can be incorporated into the canonical version.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+/* Modification history:
+   20020621: pa_unix_oss.c split into pa_unix.c, pa_unix.h, pa_unix_oss.c by
+   Augustus Saunders. See pa_unix.c for previous history. */
+
+/*
+ PROPOSED - should we add this to "portaudio.h". Problem with 
+ Pa_QueryDevice() not having same driver name os Pa_OpenStream().
+ 
+ A PaDriverInfo structure can be passed to the underlying device
+ on the Pa_OpenStream() call. The contents and interpretation of
+ the structure is determined by the PA implementation.
+*/
+typedef struct PaDriverInfo /* PROPOSED */
+{
+    /* Size of structure. Allows driver to extend the structure without breaking existing applications. */
+    int           size;
+    /* Can be used to request a specific device name. */
+    const char   *name;
+    unsigned long data;
+}
+PaDriverInfo;
+
+#include <stdio.h>
+#include <stdlib.h>
+/* #include <malloc.h> */
+#include <memory.h>
+#include <math.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sched.h>
+#include <pthread.h>
+#include <errno.h>
+
+#include "portaudio.h"
+#include "pa_host.h"
+#include "pa_trace.h"
+
+#define PRINT(x)   { printf x; fflush(stdout); }
+#define ERR_RPT(x) PRINT(x)
+#define DBUG(x)    /* PRINT(x) */
+#define DBUGX(x)   /* PRINT(x) */
+
+#define BAD_DEVICE_ID (-1)
+
+#define MIN_LATENCY_MSEC   (100)
+#define MIN_TIMEOUT_MSEC   (100)
+#define MAX_TIMEOUT_MSEC   (1000)
+
+/************************************************* Definitions ********/
+#ifdef __linux__
+ #define DEVICE_NAME_BASE            "/dev/dsp"
+#else
+ #define DEVICE_NAME_BASE            "/dev/audio"
+#endif
+
+#define MAX_CHARS_DEVNAME           (32)
+#define MAX_SAMPLE_RATES            (10)
+typedef struct internalPortAudioDevice
+{
+    struct internalPortAudioDevice *pad_Next; /* Singly linked list. */
+    double          pad_SampleRates[MAX_SAMPLE_RATES]; /* for pointing to from pad_Info */
+    char            pad_DeviceName[MAX_CHARS_DEVNAME];
+    PaDeviceInfo    pad_Info;
+}
+internalPortAudioDevice;
+
+/* Define structure to contain all OSS and Linux specific data. */
+typedef struct PaHostSoundControl
+{
+    int              pahsc_OutputHandle;
+    int              pahsc_InputHandle;
+    int              pahsc_AudioPriority;          /* priority of background audio thread */
+    pthread_t        pahsc_AudioThread;            /* background audio thread */
+    int              pahsc_IsAudioThreadValid;     /* Is pahsc_AudioThread valid?*/    pid_t            pahsc_AudioThreadPID;         /* background audio thread */
+    pthread_t        pahsc_WatchDogThread;         /* highest priority thread that protects system */
+    int              pahsc_IsWatchDogThreadValid;  /* Is pahsc_WatchDogThread valid?*/
+    int              pahsc_WatchDogRun;            /* Ask WatchDog to stop. */
+    pthread_t        pahsc_CanaryThread;           /* low priority thread that detects abuse by audio */
+    int              pahsc_IsCanaryThreadValid;    /* Is pahsc_CanaryThread valid?*/
+    struct timeval   pahsc_CanaryTime;
+    int              pahsc_CanaryRun;              /* Ask Canary to stop. */
+    short           *pahsc_NativeInputBuffer;
+    short           *pahsc_NativeOutputBuffer;
+    unsigned int     pahsc_BytesPerInputBuffer;    /* native buffer size in bytes */
+    unsigned int     pahsc_BytesPerOutputBuffer;   /* native buffer size in bytes */
+    /* For measuring CPU utilization. */
+    struct timeval   pahsc_EntryTime;
+    double           pahsc_InverseMicrosPerBuffer; /* 1/Microseconds of real-time audio per user buffer. */
+
+   /* For calculating stream time */
+    int              pahsc_LastPosPtr;
+    double           pahsc_LastStreamBytes;
+}
+PaHostSoundControl;
+
+/************************************************* Prototypes **********/
+
+internalPortAudioDevice *Pa_GetInternalDevice( PaDeviceID id );
+PaError Pa_QueryDevices( void );
+PaError Pa_QueryDevice( const char *deviceName, internalPortAudioDevice *pad );
+PaError Pa_SetupDeviceFormat( int devHandle, int numChannels, int sampleRate );
+PaError Pa_SetupInputDeviceFormat( int devHandle, int numChannels, int sampleRate );
+PaError Pa_SetupOutputDeviceFormat( int devHandle, int numChannels, int sampleRate );
+void Pa_SetLatency( int devHandle, int numBuffers, int framesPerBuffer, int channelsPerFrame  );
+void Pa_UpdateStreamTime(PaHostSoundControl *pahsc);
+int Pa_FlushStream(int devHandle);