wavemain.cpp

我自己编译的armv4i wince60模拟器的bps源文件,已经验证可以使用,欢迎下载

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this sample source code is subject to the terms of the Microsoft
// license agreement under which you licensed this sample source code. If
// you did not accept the terms of the license agreement, you are not
// authorized to use this sample source code. For the terms of the license,
// please see the license agreement between you and Microsoft or, if applicable,
// see the LICENSE.RTF on your install media or the root of your tools installation.
// THE SAMPLE SOURCE CODE IS PROVIDED "AS IS", WITH NO WARRANTIES.
//
// -----------------------------------------------------------------------------
//
//      THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
//      ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
//      THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//      PARTICULAR PURPOSE.
//
// -----------------------------------------------------------------------------
#include "wavemain.h"

BOOL CALLBACK DllMain(HANDLE hDLL,
                      DWORD dwReason,
                      LPVOID lpvReserved)
{
    switch (dwReason) {
        case DLL_PROCESS_ATTACH :
            DEBUGREGISTER((HINSTANCE)hDLL);
            DisableThreadLibraryCalls((HMODULE) hDLL);
            break;

        case DLL_PROCESS_DETACH :
            break;

        case DLL_THREAD_DETACH :
            break;

        case DLL_THREAD_ATTACH :
            break;

        default :
            break;
    }
    return TRUE;
}


// -----------------------------------------------------------------------------
//
// @doc     WDEV_EXT
//
// @topic   WAV Device Interface | Implements the WAVEDEV.DLL device
//          interface. These functions are required for the device to
//          be loaded by DEVICE.EXE.
//
// @xref                          <nl>
//          <f WAV_Init>,         <nl>
//          <f WAV_Deinit>,       <nl>
//          <f WAV_Open>,         <nl>
//          <f WAV_Close>,        <nl>
//          <f WAV_IOControl>     <nl>
//
// -----------------------------------------------------------------------------
//
// @doc     WDEV_EXT
//
// @topic   Designing a Waveform Audio Driver |
//          A waveform audio driver is responsible for processing messages
//          from the Wave API Manager (WAVEAPI.DLL) to playback and record
//          waveform audio. Waveform audio drivers are implemented as
//          dynamic link libraries that are loaded by DEVICE.EXE The
//          default waveform audio driver is named WAVEDEV.DLL (see figure).
//          The messages passed to the audio driver are similar to those
//          passed to a user-mode Windows NT audio driver (such as mmdrv.dll).
//
//          <bmp blk1_bmp>
//
//          Like all device drivers loaded by DEVICE.EXE, the waveform
//          audio driver must export the standard device functions,
//          XXX_Init, XXX_Deinit, XXX_IoControl, etc (see
//          <t WAV Device Interface>). The Waveform Audio Drivers
//          have a device prefix of "WAV".
//
//          Driver loading and unloading is handled by DEVICE.EXE and
//          WAVEAPI.DLL. Calls are made to <f WAV_Init> and <f WAV_Deinit>.
//          When the driver is opened by WAVEAPI.DLL calls are made to
//          <f WAV_Open> and <f WAV_Close>.  All
//          other communication between WAVEAPI.DLL and WAVEDEV.DLL is
//          done by calls to <f WAV_IOControl>. The other WAV_xxx functions
//          are not used.
//
// @xref                                          <nl>
//          <t Designing a Waveform Audio PDD>    <nl>
//          <t WAV Device Interface>              <nl>
//          <t Wave Input Driver Messages>        <nl>
//          <t Wave Output Driver Messages>       <nl>
//
// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------
//
//  @doc    WDEV_EXT
//
//  @func   PVOID | WAV_Init | Device initialization routine
//
//  @parm   DWORD | dwInfo | info passed to RegisterDevice
//
//  @rdesc  Returns a DWORD which will be passed to Open & Deinit or NULL if
//          unable to initialize the device.
//
// -----------------------------------------------------------------------------
extern "C" DWORD WAV_Init(DWORD Index)
{
    return((DWORD)HardwareContext::CreateHWContext(Index));
}

// -----------------------------------------------------------------------------
//
//  @doc    WDEV_EXT
//
//  @func   PVOID | WAV_Deinit | Device deinitialization routine
//
//  @parm   DWORD | dwData | value returned from WAV_Init call
//
//  @rdesc  Returns TRUE for success, FALSE for failure.
//
// -----------------------------------------------------------------------------
extern "C" BOOL WAV_Deinit(DWORD dwData)
{
    return(g_pHWContext->Deinit());
}

// -----------------------------------------------------------------------------
//
//  @doc    WDEV_EXT
//
//  @func   PVOID | WAV_Open    | Device open routine
//
//  @parm   DWORD | dwData      | Value returned from WAV_Init call (ignored)
//
//  @parm   DWORD | dwAccess    | Requested access (combination of GENERIC_READ
//                                and GENERIC_WRITE) (ignored)
//
//  @parm   DWORD | dwShareMode | Requested share mode (combination of
//                                FILE_SHARE_READ and FILE_SHARE_WRITE) (ignored)
//
//  @rdesc  Returns a DWORD which will be passed to Read, Write, etc or NULL if
//          unable to open device.
//
// -----------------------------------------------------------------------------
extern "C" PDWORD WAV_Open( DWORD dwData,
              DWORD dwAccess,
              DWORD dwShareMode)
{
    // allocate and return handle context to efficiently verify caller trust level
    return new DWORD(NULL); // assume untrusted. Can't tell for sure until WAV_IoControl
}

// -----------------------------------------------------------------------------
//
//  @doc    WDEV_EXT
//
//  @func   BOOL | WAV_Close | Device close routine
//
//  @parm   DWORD | dwOpenData | Value returned from WAV_Open call
//
//  @rdesc  Returns TRUE for success, FALSE for failure
//
// -----------------------------------------------------------------------------
extern "C" BOOL WAV_Close(PDWORD pdwData)
{
    // we trust the device manager to give us a valid context to free.
    delete pdwData;
    return(TRUE);
}

void HandleWaveMessageInternal(PMMDRV_MESSAGE_PARAMS pParams, DWORD *pdwResult)
{
    //  set the error code to be no error first
    SetLastError(MMSYSERR_NOERROR);

    UINT uMsg = pParams->uMsg;
    UINT uDeviceId = pParams->uDeviceId;
    DWORD dwParam1 = pParams->dwParam1;
    DWORD dwParam2 = pParams->dwParam2;
    DWORD dwUser   = pParams->dwUser;
    StreamContext *pStreamContext = (StreamContext *)dwUser;

    DWORD dwRet;

    switch (uMsg)
    {
    case WODM_GETNUMDEVS:
        {
            dwRet = g_pHWContext->GetNumOutputDevices();
            break;
        }

    case WIDM_GETNUMDEVS:
        {
            dwRet = g_pHWContext->GetNumInputDevices();
            break;
        }

    case WODM_GETDEVCAPS:
        {
            DeviceContext *pDeviceContext;

            if (pStreamContext)
            {
                pDeviceContext=pStreamContext->GetDeviceContext();
            }
            else
            {
                pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
            }

            dwRet = pDeviceContext->GetDevCaps((PVOID)dwParam1,dwParam2);
            break;
        }


    case WIDM_GETDEVCAPS:
        {
            DeviceContext *pDeviceContext;

            if (pStreamContext)
            {
                pDeviceContext=pStreamContext->GetDeviceContext();
            }
            else
            {
                pDeviceContext = g_pHWContext->GetInputDeviceContext(uDeviceId);
            }

            dwRet = pDeviceContext->GetDevCaps((PVOID)dwParam1,dwParam2);
            break;
        }

    case WODM_GETEXTDEVCAPS:
        {
            DeviceContext *pDeviceContext;
            UINT NumDevs = g_pHWContext->GetNumOutputDevices();

            if (pStreamContext)
            {
                pDeviceContext=pStreamContext->GetDeviceContext();
            }
            else
            {
                pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
            }

            dwRet = pDeviceContext->GetExtDevCaps((PVOID)dwParam1,dwParam2);
            break;
        }

    case WODM_OPEN:
        {
            // DEBUGMSG(1, (TEXT("WODM_OPEN\r\n"));
            DeviceContext *pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
            dwRet = pDeviceContext->OpenStream((LPWAVEOPENDESC)dwParam1, dwParam2, (StreamContext **)dwUser);
            break;
        }

    case WIDM_OPEN:
        {
            // DEBUGMSG(1, (TEXT("WIDM_OPEN\r\n"));
            DeviceContext *pDeviceContext = g_pHWContext->GetInputDeviceContext(uDeviceId);
            dwRet = pDeviceContext->OpenStream((LPWAVEOPENDESC)dwParam1, dwParam2, (StreamContext **)dwUser);
            break;
        }

    case WODM_CLOSE:
    case WIDM_CLOSE:
        {
            // DEBUGMSG(1, (TEXT("WIDM_CLOSE/WODM_CLOSE\r\n"));
            if (pStreamContext)
            {
                dwRet = pStreamContext->Close();

                // Release stream context here, rather than inside StreamContext::Close, so that if someone
                // (like CMidiStream) has subclassed Close there's no chance that the object will get released
                // out from under them.
                if (dwRet==MMSYSERR_NOERROR)
                {
                    pStreamContext->Release();
                }
            }
            else
            {
                dwRet = MMSYSERR_INVALPARAM;
            }
            break;
        }

    case WODM_RESTART: