--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/common/xavolumeitf.c	Fri Apr 16 15:29:42 2010 +0300
@@ -0,0 +1,412 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "xavolumeitf.h"
+#ifdef _GSTREAMER_BACKEND_  
+#include "XAVolumeItfAdaptation.h"
+#endif
+/**
+ * XAVolumeItfImpl* GetImpl(XAVolumeItf self)
+ * Description: Validated interface pointer and cast it to implementations pointer.
+ **/
+static XAVolumeItfImpl* GetImpl(XAVolumeItf self)
+{
+    if(self)
+    {
+        XAVolumeItfImpl* impl = (XAVolumeItfImpl*)(*self);
+        if(impl && impl == impl->self)
+        {
+            return impl;
+        }
+    }
+    return NULL;
+}
+
+/**
+ * Base interface XAVolumeItf implementation
+ */
+
+/**
+ * XAresult XAVolumeItfImpl_SetVolumeLevel(XAVolumeItf self, XAmillibel level)
+ * Description: Sets the object's volume level.
+ **/
+XAresult XAVolumeItfImpl_SetVolumeLevel(XAVolumeItf self, XAmillibel level)
+{
+    XAVolumeItfImpl *impl = GetImpl(self);
+    XAresult ret = XA_RESULT_SUCCESS;
+
+    XAmillibel maximumLevel = 0;
+    DEBUG_API("->XAVolumeItfImpl_SetVolumeLevel");
+
+    /* check maximum volume level */
+    if(XAVolumeItfImpl_GetMaxVolumeLevel(self, &maximumLevel) != XA_RESULT_SUCCESS)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_SetVolumeLevel");
+        /* cannot solve maximum volume level */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    if(!impl || level > maximumLevel)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_SetVolumeLevel");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+#ifdef _GSTREAMER_BACKEND_  
+    ret = XAVolumeItfAdapt_ThreadEntry(impl->adapCtx);
+    if( ret == XA_RESULT_PARAMETER_INVALID || ret == XA_RESULT_PRECONDITIONS_VIOLATED )
+    {
+        DEBUG_API("<-XAVolumeItfImpl_SetVolumeLevel");
+        return ret;
+    }
+
+    ret = XAVolumeItfAdapt_SetVolumeLevel(impl->adapCtx,  level);
+
+    if(ret == XA_RESULT_SUCCESS)
+    {
+        impl->volumeLevel = level;
+    }
+
+    XAVolumeItfAdapt_ThreadExit(impl->adapCtx);
+#endif
+    DEBUG_API("<-XAVolumeItfImpl_SetVolumeLevel");
+    return ret ;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_GetVolumeLevel(XAVolumeItf self, XAmillibel *pLevel)
+ * Description: Gets the object’s volume level.
+ **/
+XAresult XAVolumeItfImpl_GetVolumeLevel(XAVolumeItf self, XAmillibel *pLevel)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_GetVolumeLevel");
+
+    if(!impl || !pLevel)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_GetVolumeLevel");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    *pLevel = impl->volumeLevel;
+
+    DEBUG_API("<-XAVolumeItfImpl_GetVolumeLevel");
+    return ret;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_GetMaxVolumeLevel(XAVolumeItf  self, XAmillibel *pMaxLevel)
+ * Description: Gets the maximum supported level.
+ **/
+XAresult XAVolumeItfImpl_GetMaxVolumeLevel(XAVolumeItf  self, XAmillibel *pMaxLevel)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_GetVolumeLevel");
+
+    if(!impl || !pMaxLevel)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_GetMaxVolumeLevel");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+#ifdef _GSTREAMER_BACKEND_  
+    ret = XAVolumeItfAdapt_ThreadEntry(impl->adapCtx);
+    if( ret == XA_RESULT_PARAMETER_INVALID || ret == XA_RESULT_PRECONDITIONS_VIOLATED )
+    {
+        DEBUG_API("<-XAVolumeItfImpl_GetMaxVolumeLevel");
+        return ret;
+    }
+    ret = XAVolumeItfAdapt_GetMaxVolumeLevel(impl->adapCtx,
+                                             pMaxLevel);
+
+    XAVolumeItfAdapt_ThreadExit(impl->adapCtx);
+#endif
+    DEBUG_API("<-XAVolumeItfImpl_GetMaxVolumeLevel");
+    return ret;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_SetMute(XAVolumeItf self, XAboolean mute)
+ * Description: Mutes or unmutes the object.
+ **/
+XAresult XAVolumeItfImpl_SetMute(XAVolumeItf self, XAboolean mute)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_SetMute");
+
+    if(!impl)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_SetMute");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+#ifdef _GSTREAMER_BACKEND_  
+    ret = XAVolumeItfAdapt_ThreadEntry(impl->adapCtx);
+    if( ret == XA_RESULT_PARAMETER_INVALID || ret == XA_RESULT_PRECONDITIONS_VIOLATED )
+    {
+        DEBUG_API("<-XAVolumeItfImpl_SetMute");
+        return ret;
+    }
+    /* check is mute state changed */
+    if(mute != impl->mute)
+    {
+        ret = XAVolumeItfAdapt_SetMute(impl->adapCtx,  mute);
+
+        if(ret == XA_RESULT_SUCCESS)
+        {
+            impl->mute = mute;
+        }
+    }
+
+    XAVolumeItfAdapt_ThreadExit(impl->adapCtx);
+#endif
+    DEBUG_API("<-XAVolumeItfImpl_SetMute");
+    return ret;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_GetMute(XAVolumeItf self, XAboolean *pMute)
+ * Description: Retrieves the object's state.
+ **/
+XAresult XAVolumeItfImpl_GetMute(XAVolumeItf self, XAboolean *pMute)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_GetMute");
+
+    if(!impl || !pMute)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_GetMute");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    *pMute = impl->mute;
+
+    DEBUG_API("<-XAVolumeItfImpl_GetMute");
+    return ret;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_EnableStereoPosition(XAVolumeItf self, XAboolean enable)
+ * Description: Enables or disables the stereo positioning effect.
+ **/
+XAresult XAVolumeItfImpl_EnableStereoPosition(XAVolumeItf self, XAboolean enable)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_EnableStereoPosition");
+
+    if(!impl)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_EnableStereoPosition");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+#ifdef _GSTREAMER_BACKEND_  
+    ret = XAVolumeItfAdapt_ThreadEntry(impl->adapCtx);
+    if( ret == XA_RESULT_PARAMETER_INVALID || ret == XA_RESULT_PRECONDITIONS_VIOLATED )
+    {
+        DEBUG_API("<-XAVolumeItfImpl_EnableStereoPosition");
+        return ret;
+    }
+    /* Check is stereo position state changed */
+    if(enable != impl->enableStereoPos)
+    {
+        ret = XAVolumeItfAdapt_EnableStereoPosition(impl->adapCtx,
+                                                    enable);
+
+        if(ret == XA_RESULT_SUCCESS)
+        {
+            impl->enableStereoPos = enable;
+        }
+    }
+
+    XAVolumeItfAdapt_ThreadExit(impl->adapCtx);
+#endif
+    DEBUG_API("<-XAVolumeItfImpl_EnableStereoPosition");
+    return ret;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_IsEnabledStereoPosition(XAVolumeItf self,
+ *                                                  XAboolean *pEnable)
+ * Description: Returns the enabled state of the stereo positioning effect.
+ **/
+XAresult XAVolumeItfImpl_IsEnabledStereoPosition(XAVolumeItf self,
+                                                 XAboolean *pEnable)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_IsEnabledStereoPosition");
+
+    if(!impl || !pEnable)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_IsEnabledStereoPosition");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    *pEnable = impl->enableStereoPos;
+
+    DEBUG_API("<-XAVolumeItfImpl_IsEnabledStereoPosition");
+    return ret;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_SetStereoPosition(XAVolumeItf self,
+ *                                            XApermille stereoPosition)
+ * Description: Sets the stereo position of the object.
+ **/
+XAresult XAVolumeItfImpl_SetStereoPosition(XAVolumeItf self,
+                                           XApermille stereoPosition)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_SetStereoPosition");
+
+    if(!impl || (stereoPosition < STEREO_POSITION_LEFT) ||
+        (stereoPosition > STEREO_POSITION_RIGHT))
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_SetStereoPosition");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    impl->stereoPosition = stereoPosition;
+
+#ifdef _GSTREAMER_BACKEND_  
+    ret = XAVolumeItfAdapt_ThreadEntry(impl->adapCtx);
+    if( ret == XA_RESULT_PARAMETER_INVALID || ret == XA_RESULT_PRECONDITIONS_VIOLATED )
+    {
+        DEBUG_API("<-XAVolumeItfImpl_SetStereoPosition");
+        return ret;
+    }
+    /* check is stereo position effect enabled if is then handle effect */
+    if(impl->enableStereoPos)
+    {
+        ret = XAVolumeItfAdapt_SetStereoPosition(impl->adapCtx,
+                                                 stereoPosition);
+    }
+
+    XAVolumeItfAdapt_ThreadExit(impl->adapCtx);
+#endif
+    DEBUG_API("<-XAVolumeItfImpl_SetStereoPosition");
+    return ret;
+}
+
+/**
+ * XAresult XAVolumeItfImpl_GetStereoPosition(XAVolumeItf self,
+ *                                            XApermille *pStereoPosition)
+ * Description: Gets the object’s stereo position setting.
+ **/
+XAresult XAVolumeItfImpl_GetStereoPosition(XAVolumeItf self,
+                                           XApermille *pStereoPosition)
+{
+    XAresult ret = XA_RESULT_SUCCESS;
+    XAVolumeItfImpl *impl = GetImpl(self);
+    DEBUG_API("->XAVolumeItfImpl_GetStereoPosition");
+
+    if(!impl || !pStereoPosition)
+    {
+        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
+        DEBUG_API("<-XAVolumeItfImpl_GetStereoPosition");
+        /* invalid parameter */
+        return XA_RESULT_PARAMETER_INVALID;
+    }
+
+    *pStereoPosition = impl->stereoPosition;
+
+    DEBUG_API("<-XAVolumeItfImpl_GetStereoPosition");
+    return ret;
+}
+
+/**
+ * XAVolumeItfImpl -specific methods
+ **/
+#ifdef _GSTREAMER_BACKEND_  
+
+/**
+ * XAVolumeItfImpl* XAVolumeItfImpl_Create()
+ * Description: Allocate and initialize VolumeItfImpl
+ **/
+XAVolumeItfImpl* XAVolumeItfImpl_Create(XAAdaptationBaseCtx *adapCtx )
+{
+    XAVolumeItfImpl *self = (XAVolumeItfImpl*)
+        calloc(1,sizeof(XAVolumeItfImpl));
+    DEBUG_API("->XAVolumeItfImpl_Create");
+
+    if(self)
+    {
+        /* init itf default implementation */
+        self->itf.EnableStereoPosition = XAVolumeItfImpl_EnableStereoPosition;
+        self->itf.GetMaxVolumeLevel = XAVolumeItfImpl_GetMaxVolumeLevel;
+        self->itf.GetMute = XAVolumeItfImpl_GetMute;
+        self->itf.GetStereoPosition = XAVolumeItfImpl_GetStereoPosition;
+        self->itf.GetVolumeLevel = XAVolumeItfImpl_GetVolumeLevel;
+        self->itf.IsEnabledStereoPosition = XAVolumeItfImpl_IsEnabledStereoPosition;
+        self->itf.SetMute = XAVolumeItfImpl_SetMute;
+        self->itf.SetStereoPosition = XAVolumeItfImpl_SetStereoPosition;
+        self->itf.SetVolumeLevel = XAVolumeItfImpl_SetVolumeLevel;
+
+        /* init variables */
+        self->volumeLevel = 0;
+        self->mute = XA_BOOLEAN_FALSE;
+        self->enableStereoPos = XA_BOOLEAN_FALSE;
+        self->stereoPosition = STEREO_POSITION_CENTER;
+
+        self->adapCtx = adapCtx;
+
+        self->self = self;
+    }
+
+    DEBUG_API("<-XAVolumeItfImpl_Create");
+    return self;
+}
+#endif
+/**
+ * void XAVolumeItfImpl_Free(XAVolumeItfImpl* self)
+ * Description: Free all resources reserved at XAVolumeItfImpl_Create
+ **/
+void XAVolumeItfImpl_Free(XAVolumeItfImpl* self)
+{
+    DEBUG_API("->XAVolumeItfImpl_Free");
+    assert(self==self->self);
+    free(self);
+    DEBUG_API("<-XAVolumeItfImpl_Free");
+}