diff options
Diffstat (limited to 'Source/DirectFB/src/media/idirectfbdatabuffer_memory.c')
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbdatabuffer_memory.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/Source/DirectFB/src/media/idirectfbdatabuffer_memory.c b/Source/DirectFB/src/media/idirectfbdatabuffer_memory.c new file mode 100755 index 0000000..233e4b4 --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbdatabuffer_memory.c @@ -0,0 +1,266 @@ +/* + (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; +} + |