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/*
(c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Hundt <andi@fischlustig.de>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/time.h>
#include <pthread.h>
#include <fusion/reactor.h>
#include <direct/list.h>
#include <directfb.h>
#include <core/coredefs.h>
#include <core/coretypes.h>
#include <core/input.h>
#include <core/windows.h>
#include <direct/interface.h>
#include <direct/mem.h>
#include <direct/memcpy.h>
#include <direct/util.h>
#include <media/idirectfbdatabuffer.h>
static void
IDirectFBDataBuffer_Memory_Destruct( IDirectFBDataBuffer *thiz )
{
IDirectFBDataBuffer_Destruct( thiz );
}
static DirectResult
IDirectFBDataBuffer_Memory_Release( IDirectFBDataBuffer *thiz )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer)
if (--data->ref == 0)
IDirectFBDataBuffer_Memory_Destruct( thiz );
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_Flush( IDirectFBDataBuffer *thiz )
{
return DFB_UNSUPPORTED;
}
static DFBResult
IDirectFBDataBuffer_Memory_Finish( IDirectFBDataBuffer *thiz )
{
return DFB_UNSUPPORTED;
}
static DFBResult
IDirectFBDataBuffer_Memory_SeekTo( IDirectFBDataBuffer *thiz,
unsigned int offset )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (offset >= data->length)
return DFB_INVARG;
data->pos = offset;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_GetPosition( IDirectFBDataBuffer *thiz,
unsigned int *offset )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (!offset)
return DFB_INVARG;
*offset = data->pos;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_GetLength( IDirectFBDataBuffer *thiz,
unsigned int *length )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (!length)
return DFB_INVARG;
*length = data->length;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_WaitForData( IDirectFBDataBuffer *thiz,
unsigned int length )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (data->pos + length > data->length)
return DFB_EOF;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_WaitForDataWithTimeout( IDirectFBDataBuffer *thiz,
unsigned int length,
unsigned int seconds,
unsigned int milli_seconds )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (data->pos + length > data->length)
return DFB_EOF;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_GetData( IDirectFBDataBuffer *thiz,
unsigned int length,
void *data_buffer,
unsigned int *read_out )
{
unsigned int size;
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (!data_buffer || !length)
return DFB_INVARG;
if (data->pos >= data->length)
return DFB_EOF;
size = MIN( length, data->length - data->pos );
direct_memcpy( data_buffer, data->buffer + data->pos, size );
data->pos += size;
if (read_out)
*read_out = size;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_PeekData( IDirectFBDataBuffer *thiz,
unsigned int length,
int offset,
void *data_buffer,
unsigned int *read_out )
{
unsigned int size;
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (!data_buffer || !length)
return DFB_INVARG;
if (data->pos + offset >= data->length)
return DFB_EOF;
size = MIN( length, data->length - data->pos - offset );
direct_memcpy( data_buffer, data->buffer + data->pos + offset, size );
if (read_out)
*read_out = size;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_HasData( IDirectFBDataBuffer *thiz )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Memory)
if (data->pos >= data->length)
return DFB_EOF;
return DFB_OK;
}
static DFBResult
IDirectFBDataBuffer_Memory_PutData( IDirectFBDataBuffer *thiz,
const void *data_buffer,
unsigned int length )
{
return DFB_UNSUPPORTED;
}
DFBResult
IDirectFBDataBuffer_Memory_Construct( IDirectFBDataBuffer *thiz,
const void *data_buffer,
unsigned int length,
CoreDFB *core )
{
DFBResult ret;
DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IDirectFBDataBuffer_Memory)
ret = IDirectFBDataBuffer_Construct( thiz, NULL, core );
if (ret)
return ret;
data->buffer = data_buffer;
data->length = length;
data->base.is_memory = true;
thiz->Release = IDirectFBDataBuffer_Memory_Release;
thiz->Flush = IDirectFBDataBuffer_Memory_Flush;
thiz->Finish = IDirectFBDataBuffer_Memory_Finish;
thiz->SeekTo = IDirectFBDataBuffer_Memory_SeekTo;
thiz->GetPosition = IDirectFBDataBuffer_Memory_GetPosition;
thiz->GetLength = IDirectFBDataBuffer_Memory_GetLength;
thiz->WaitForData = IDirectFBDataBuffer_Memory_WaitForData;
thiz->WaitForDataWithTimeout = IDirectFBDataBuffer_Memory_WaitForDataWithTimeout;
thiz->GetData = IDirectFBDataBuffer_Memory_GetData;
thiz->PeekData = IDirectFBDataBuffer_Memory_PeekData;
thiz->HasData = IDirectFBDataBuffer_Memory_HasData;
thiz->PutData = IDirectFBDataBuffer_Memory_PutData;
return DFB_OK;
}
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