upnp_tv_device.c

Upnp开发包文件

    if( incr > 0 ) {
        actionName = "IncreaseColor";
    } else {
        actionName = "DecreaseColor";
    }

    ithread_mutex_lock( &TVDevMutex );
    curcolor = atoi( tv_service_table[TV_SERVICE_PICTURE].
                     VariableStrVal[TV_PICTURE_COLOR] );
    ithread_mutex_unlock( &TVDevMutex );

    newcolor = curcolor + incr;

    if( newcolor < MIN_COLOR || newcolor > MAX_COLOR ) {
        SampleUtil_Print( "error: can't change to color %d\n", newcolor );
        ( *errorString ) = "Invalid Color";
        return UPNP_E_INVALID_PARAM;
    }

    /*
       Vendor-specific code to set the channel goes here 
     */

    sprintf( value, "%d", newcolor );

    if( TvDeviceSetServiceTableVar( TV_SERVICE_PICTURE,
                                    TV_PICTURE_COLOR, value ) ) {
        if( UpnpAddToActionResponse( out, actionName,
                                     TvServiceType[TV_SERVICE_PICTURE],
                                     "Color", value ) != UPNP_E_SUCCESS ) {
            ( *out ) = NULL;
            ( *errorString ) = "Internal Error";
            return UPNP_E_INTERNAL_ERROR;
        }
        return UPNP_E_SUCCESS;
    } else {
        ( *errorString ) = "Internal Error";
        return UPNP_E_INTERNAL_ERROR;
    }
}

/******************************************************************************
 * TvDeviceDecreaseColor
 *
 * Description: 
 *       Decrease the color.  
 *
 * Parameters:
 *   
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *****************************************************************************/
int
TvDeviceDecreaseColor( IN IXML_Document * in,
                       OUT IXML_Document ** out,
                       OUT char **errorString )
{

    return IncrementColor( -1, in, out, errorString );
}

/******************************************************************************
 * TvDeviceIncreaseColor
 *
 * Description: 
 *       Increase the color.
 *
 * Parameters:
 *
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *****************************************************************************/
int
TvDeviceIncreaseColor( IN IXML_Document * in,
                       OUT IXML_Document ** out,
                       OUT char **errorString )
{

    return IncrementColor( 1, in, out, errorString );
}

/******************************************************************************
 * TvDeviceSetTint
 *
 * Description: 
 *       Change the tint, update the TvDevice picture service
 *       state table, and notify all subscribed control points of the
 *       updated state.
 *
 * Parameters:
 *
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *
 *****************************************************************************/
int
TvDeviceSetTint( IN IXML_Document * in,
                 OUT IXML_Document ** out,
                 OUT char **errorString )
{

    char *value = NULL;

    int tint = -1;

    ( *out ) = NULL;
    ( *errorString ) = NULL;

    if( !( value = SampleUtil_GetFirstDocumentItem( in, "Tint" ) ) ) {
        ( *errorString ) = "Invalid Tint";
        return UPNP_E_INVALID_PARAM;
    }

    tint = atoi( value );

    if( tint < MIN_TINT || tint > MAX_TINT ) {
        SampleUtil_Print( "error: can't change to tint %d\n", tint );
        ( *errorString ) = "Invalid Tint";
        return UPNP_E_INVALID_PARAM;
    }

    /*
       Vendor-specific code to set the volume goes here 
     */

    if( TvDeviceSetServiceTableVar( TV_SERVICE_PICTURE,
                                    TV_PICTURE_TINT, value ) ) {
        if( UpnpAddToActionResponse( out, "SetTint",
                                     TvServiceType[TV_SERVICE_PICTURE],
                                     "NewTint", value ) != UPNP_E_SUCCESS )
        {
            ( *out ) = NULL;
            ( *errorString ) = "Internal Error";
            free( value );
            return UPNP_E_INTERNAL_ERROR;
        }
        free( value );
        return UPNP_E_SUCCESS;
    } else {
        free( value );
        ( *errorString ) = "Internal Error";
        return UPNP_E_INTERNAL_ERROR;
    }

}

/******************************************************************************
 * IncrementTint
 *
 * Description: 
 *       Increment the tint.  Read the current tint from the state
 *       table, add the increment, and then change the tint.
 *
 * Parameters:
 *   incr -- The increment by which to change the tint.
 *   
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *****************************************************************************/
int
IncrementTint( IN int incr,
               IN IXML_Document * in,
               OUT IXML_Document ** out,
               OUT char **errorString )
{
    int curtint,
      newtint;

    char *actionName = NULL;
    char value[TV_MAX_VAL_LEN];

    if( incr > 0 ) {
        actionName = "IncreaseTint";
    } else {
        actionName = "DecreaseTint";
    }

    ithread_mutex_lock( &TVDevMutex );
    curtint = atoi( tv_service_table[TV_SERVICE_PICTURE].
                    VariableStrVal[TV_PICTURE_TINT] );
    ithread_mutex_unlock( &TVDevMutex );

    newtint = curtint + incr;

    if( newtint < MIN_TINT || newtint > MAX_TINT ) {
        SampleUtil_Print( "error: can't change to tint %d\n", newtint );
        ( *errorString ) = "Invalid Tint";
        return UPNP_E_INVALID_PARAM;
    }

    /*
       Vendor-specific code to set the channel goes here 
     */

    sprintf( value, "%d", newtint );

    if( TvDeviceSetServiceTableVar( TV_SERVICE_PICTURE,
                                    TV_PICTURE_TINT, value ) ) {
        if( UpnpAddToActionResponse( out, actionName,
                                     TvServiceType[TV_SERVICE_PICTURE],
                                     "Tint", value ) != UPNP_E_SUCCESS ) {
            ( *out ) = NULL;
            ( *errorString ) = "Internal Error";
            return UPNP_E_INTERNAL_ERROR;
        }
        return UPNP_E_SUCCESS;
    } else {
        ( *errorString ) = "Internal Error";
        return UPNP_E_INTERNAL_ERROR;
    }

}

/******************************************************************************
 * TvDeviceIncreaseTint
 *
 * Description: 
 *       Increase tint.
 *
 * Parameters:
 *   
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *
 *****************************************************************************/
int
TvDeviceIncreaseTint( IN IXML_Document * in,
                      OUT IXML_Document ** out,
                      OUT char **errorString )
{

    return IncrementTint( 1, in, out, errorString );
}

/******************************************************************************
 * TvDeviceDecreaseTint
 *
 * Description: 
 *       Decrease tint.
 *
 * Parameters:
 *  
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *
 *****************************************************************************/
int
TvDeviceDecreaseTint( IN IXML_Document * in,
                      OUT IXML_Document ** out,
                      OUT char **errorString )
{

    return IncrementTint( -1, in, out, errorString );
}

/*****************************************************************************
 * TvDeviceSetContrast
 *
 * Description: 
 *       Change the contrast, update the TvDevice picture service
 *       state table, and notify all subscribed control points of the
 *       updated state.
 *
 * Parameters:
 *   
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *
 ****************************************************************************/
int
TvDeviceSetContrast( IN IXML_Document * in,
                     OUT IXML_Document ** out,
                     OUT char **errorString )
{

    char *value = NULL;
    int contrast = -1;

    ( *out ) = NULL;
    ( *errorString ) = NULL;

    if( !( value = SampleUtil_GetFirstDocumentItem( in, "Contrast" ) ) ) {
        ( *errorString ) = "Invalid Contrast";
        return UPNP_E_INVALID_PARAM;
    }

    contrast = atoi( value );

    if( contrast < MIN_CONTRAST || contrast > MAX_CONTRAST ) {
        SampleUtil_Print( "error: can't change to contrast %d\n",
                          contrast );
        ( *errorString ) = "Invalid Contrast";
        return UPNP_E_INVALID_PARAM;
    }

    /*
       Vendor-specific code to set the volume goes here 
     */

    if( TvDeviceSetServiceTableVar( TV_SERVICE_PICTURE,
                                    TV_PICTURE_CONTRAST, value ) ) {
        if( UpnpAddToActionResponse( out, "SetContrast",
                                     TvServiceType[TV_SERVICE_PICTURE],
                                     "NewContrast",
                                     value ) != UPNP_E_SUCCESS ) {
            ( *out ) = NULL;
            ( *errorString ) = "Internal Error";
            free( value );
            return UPNP_E_INTERNAL_ERROR;
        }
        free( value );
        return UPNP_E_SUCCESS;
    } else {
        free( value );
        ( *errorString ) = "Internal Error";
        return UPNP_E_INTERNAL_ERROR;
    }

}

/******************************************************************************
 * IncrementContrast
 *
 * Description: 
 *       Increment the contrast.  Read the current contrast from the state
 *       table, add the increment, and then change the contrast.
 *
 * Parameters:
 *   incr -- The increment by which to change the contrast.
 *   
 *    IXML_Document * in -  action request document
 *    IXML_Document **out - action result document
 *    char **errorString - errorString (in case action was unsuccessful)
 *****************************************************************************/
int
IncrementContrast( IN int incr,
                   IN IXML_Document * in,
                   OUT IXML_Document ** out,
                   OUT char **errorString )
{
    int curcontrast,
      newcontrast;

    char *actionName = NULL;
    char value[TV_MAX_VAL_LEN];

    if( incr > 0 ) {
        actionName = "IncreaseContrast";
    } else {
        actionName = "DecreaseContrast";
    }

    ithread_mutex_lock( &TVDevMutex );
    curcontrast = atoi( tv_service_table[TV_SERVICE_PICTURE].
                        VariableStrVal[TV_PICTURE_CONTRAST] );
    ithread_mutex_unlock( &TVDevMutex );

    newcontrast = curcontrast + incr;

    if( newcontrast < MIN_CONTRAST || newcontrast > MAX_CONTRAST ) {
        SampleUtil_Print( "error: can't change to contrast %d\n",
                          newcontrast );
        ( *errorString ) = "Invalid Contrast";
        return UPNP_E_INVALID_PARAM;
    }

    /*
       Vendor-specific code to set the channel goes here 
     */

    sprintf( value, "%d", newcontrast );

    if( TvDeviceSetServiceTableVar( TV_SERVICE_PICTURE,
                                    TV_PICTURE_CONTRAST, value ) ) {
        if( UpnpAddToActionResponse( out, actionName,
                                     TvServiceType[TV_SERVICE_PICTURE],
                                     "Contrast",
                                     value ) != UPNP_E_SUCCESS ) {
            ( *out ) = NULL;
            ( *errorString ) = "Internal Error";
            return UPNP_E_INTERNAL_ERROR;
        }
        return UPNP_E_SUCCESS;
    } else {
        ( *errorString ) = "Internal Error";
        return UPNP_E_INTERNAL_ERROR;
    }
}

/******************************************************************************
 * TvDeviceIncreaseContrast
 *
 * Description: 
 *
 *      Increase the contrast.
 *
 * Parameters:
 *       
 *    IXML_Document * in -  action request document