diff options
Diffstat (limited to 'Source/DirectFB/src/media')
| -rwxr-xr-x | Source/DirectFB/src/media/Makefile.am | 29 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/Makefile.in | 570 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbdatabuffer.c | 264 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbdatabuffer.h | 104 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbdatabuffer_file.c | 297 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbdatabuffer_memory.c | 266 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbdatabuffer_streamed.c | 529 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbfont.c | 965 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbfont.h | 82 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbimageprovider.c | 167 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbimageprovider.h | 48 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbvideoprovider.c | 387 | ||||
| -rwxr-xr-x | Source/DirectFB/src/media/idirectfbvideoprovider.h | 54 |
13 files changed, 3762 insertions, 0 deletions
diff --git a/Source/DirectFB/src/media/Makefile.am b/Source/DirectFB/src/media/Makefile.am new file mode 100755 index 0000000..cb2ae12 --- /dev/null +++ b/Source/DirectFB/src/media/Makefile.am @@ -0,0 +1,29 @@ +## Makefile.am for DirectFB/src/media + +INCLUDES = \ + -I$(top_builddir)/lib \ + -I$(top_builddir)/include \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/lib \ + -I$(top_srcdir)/src + + +internalincludedir = $(INTERNALINCLUDEDIR)/media + +internalinclude_HEADERS = \ + idirectfbdatabuffer.h \ + idirectfbfont.h \ + idirectfbimageprovider.h \ + idirectfbvideoprovider.h + + +noinst_LTLIBRARIES = libdirectfb_media.la + +libdirectfb_media_la_SOURCES = \ + idirectfbdatabuffer.c \ + idirectfbdatabuffer_file.c \ + idirectfbdatabuffer_memory.c \ + idirectfbdatabuffer_streamed.c \ + idirectfbfont.c \ + idirectfbimageprovider.c \ + idirectfbvideoprovider.c diff --git a/Source/DirectFB/src/media/Makefile.in b/Source/DirectFB/src/media/Makefile.in new file mode 100755 index 0000000..930fe11 --- /dev/null +++ b/Source/DirectFB/src/media/Makefile.in @@ -0,0 +1,570 @@ +# Makefile.in generated by automake 1.10.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = 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+ distclean-tags + +dvi: dvi-am + +dvi-am: + +html: html-am + +info: info-am + +info-am: + +install-data-am: install-internalincludeHEADERS + +install-dvi: install-dvi-am + +install-exec-am: + +install-html: install-html-am + +install-info: install-info-am + +install-man: + +install-pdf: install-pdf-am + +install-ps: install-ps-am + +installcheck-am: + +maintainer-clean: maintainer-clean-am + -rm -rf ./$(DEPDIR) + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-internalincludeHEADERS + +.MAKE: install-am install-strip + +.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \ + clean-libtool clean-noinstLTLIBRARIES ctags distclean \ + distclean-compile distclean-generic distclean-libtool \ + distclean-tags distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am install-dvi \ + install-dvi-am install-exec install-exec-am install-html \ + install-html-am install-info install-info-am \ + install-internalincludeHEADERS install-man install-pdf \ + install-pdf-am install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags uninstall uninstall-am uninstall-internalincludeHEADERS + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/Source/DirectFB/src/media/idirectfbdatabuffer.c b/Source/DirectFB/src/media/idirectfbdatabuffer.c new file mode 100755 index 0000000..68ccc4e --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbdatabuffer.c @@ -0,0 +1,264 @@ +/* + (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 <misc/util.h> +#include <direct/interface.h> +#include <direct/mem.h> + +#include <media/idirectfbdatabuffer.h> +#include <media/idirectfbfont.h> +#include <media/idirectfbimageprovider.h> +#include <media/idirectfbvideoprovider.h> + + +void +IDirectFBDataBuffer_Destruct( IDirectFBDataBuffer *thiz ) +{ + IDirectFBDataBuffer_data *data = (IDirectFBDataBuffer_data*) thiz->priv; + + if (data->filename) + D_FREE( data->filename ); + + DIRECT_DEALLOCATE_INTERFACE( thiz ); +} + +static DirectResult +IDirectFBDataBuffer_AddRef( IDirectFBDataBuffer *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer) + + data->ref++; + + return DFB_OK; +} + +static DirectResult +IDirectFBDataBuffer_Release( IDirectFBDataBuffer *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer) + + if (--data->ref == 0) + IDirectFBDataBuffer_Destruct( thiz ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Flush( IDirectFBDataBuffer *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_Finish( IDirectFBDataBuffer *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_SeekTo( IDirectFBDataBuffer *thiz, + unsigned int offset ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_GetPosition( IDirectFBDataBuffer *thiz, + unsigned int *offset ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_GetLength( IDirectFBDataBuffer *thiz, + unsigned int *length ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_WaitForData( IDirectFBDataBuffer *thiz, + unsigned int length ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_WaitForDataWithTimeout( IDirectFBDataBuffer *thiz, + unsigned int length, + unsigned int seconds, + unsigned int milli_seconds ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_GetData( IDirectFBDataBuffer *thiz, + unsigned int length, + void *data, + unsigned int *read ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_PeekData( IDirectFBDataBuffer *thiz, + unsigned int length, + int offset, + void *data, + unsigned int *read ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_HasData( IDirectFBDataBuffer *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_PutData( IDirectFBDataBuffer *thiz, + const void *data, + unsigned int length ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBDataBuffer_CreateImageProvider( IDirectFBDataBuffer *thiz, + IDirectFBImageProvider **interface ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer) + + /* Check arguments */ + if (!interface) + return DFB_INVARG; + +#ifndef DIRECTFB_PURE_VOODOO
+ return IDirectFBImageProvider_CreateFromBuffer( thiz, data->core, interface ); +#else
+ D_BUG( "%s in pure Voodoo build", __FUNCTION__ );
+ return DFB_BUG;
+#endif
+} + +static DFBResult +IDirectFBDataBuffer_CreateVideoProvider( IDirectFBDataBuffer *thiz, + IDirectFBVideoProvider **interface ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer) + + /* Check arguments */ + if (!interface) + return DFB_INVARG; + +#ifndef DIRECTFB_PURE_VOODOO
+ return IDirectFBVideoProvider_CreateFromBuffer( thiz, data->core, interface ); +#else
+ D_BUG( "%s in pure Voodoo build", __FUNCTION__ );
+ return DFB_BUG;
+#endif
+} +
+static DFBResult
+IDirectFBDataBuffer_CreateFont( IDirectFBDataBuffer *thiz,
+ const DFBFontDescription *desc,
+ IDirectFBFont **interface )
+{
+ DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer)
+
+ /* Check arguments */
+ if (!interface || !desc)
+ return DFB_INVARG;
+
+#ifndef DIRECTFB_PURE_VOODOO
+ return IDirectFBFont_CreateFromBuffer( thiz, data->core, desc, interface );
+#else
+ D_BUG( "%s in pure Voodoo build", __FUNCTION__ );
+ return DFB_BUG;
+#endif
+} + +DFBResult +IDirectFBDataBuffer_Construct( IDirectFBDataBuffer *thiz, + const char *filename, + CoreDFB *core ) +{ + DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IDirectFBDataBuffer) + + data->ref = 1; + data->core = core; + + if (filename) + data->filename = D_STRDUP( filename ); + + thiz->AddRef = IDirectFBDataBuffer_AddRef; + thiz->Release = IDirectFBDataBuffer_Release; + thiz->Flush = IDirectFBDataBuffer_Flush; + thiz->Finish = IDirectFBDataBuffer_Finish; + thiz->SeekTo = IDirectFBDataBuffer_SeekTo; + thiz->GetPosition = IDirectFBDataBuffer_GetPosition; + thiz->GetLength = IDirectFBDataBuffer_GetLength; + thiz->WaitForData = IDirectFBDataBuffer_WaitForData; + thiz->WaitForDataWithTimeout = IDirectFBDataBuffer_WaitForDataWithTimeout; + thiz->GetData = IDirectFBDataBuffer_GetData; + thiz->PeekData = IDirectFBDataBuffer_PeekData; + thiz->HasData = IDirectFBDataBuffer_HasData; + thiz->PutData = IDirectFBDataBuffer_PutData; + thiz->CreateImageProvider = IDirectFBDataBuffer_CreateImageProvider; + thiz->CreateVideoProvider = IDirectFBDataBuffer_CreateVideoProvider; + thiz->CreateFont = IDirectFBDataBuffer_CreateFont;
+ + return DFB_OK; +} + diff --git a/Source/DirectFB/src/media/idirectfbdatabuffer.h b/Source/DirectFB/src/media/idirectfbdatabuffer.h new file mode 100755 index 0000000..4b19eb0 --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbdatabuffer.h @@ -0,0 +1,104 @@ +/* + (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. +*/ + +#ifndef __IDIRECTFBDATABUFFER_H__ +#define __IDIRECTFBDATABUFFER_H__ + +#include <core/core.h> + +/* + * private data struct of IDirectFBDataBuffer + */ +typedef struct { + int ref; /* reference counter */ + char *filename; /* Only set if databuffer is created from file. */ + + CoreDFB *core; + + bool is_memory; +} IDirectFBDataBuffer_data; + +/* + * private data struct of IDirectFBDataBuffer_File + */ +typedef struct { + IDirectFBDataBuffer_data base; + + DirectStream *stream; + pthread_mutex_t mutex; +} IDirectFBDataBuffer_File_data; + +/* + * private data struct of IDirectFBDataBuffer_Memory + */ +typedef struct { + IDirectFBDataBuffer_data base; + + const void *buffer; + unsigned int length; + + unsigned int pos; +} IDirectFBDataBuffer_Memory_data; + +/* + * base constructor + * + * If the databuffer is created for a file, the filename can be provided + * for fallbacks. + */ +DFBResult IDirectFBDataBuffer_Construct( IDirectFBDataBuffer *thiz, + const char *filename, + CoreDFB *core ); + +/* + * base destructor + */ +void IDirectFBDataBuffer_Destruct( IDirectFBDataBuffer *thiz ); + +/* + * generic streamed data buffer + */ +DFBResult IDirectFBDataBuffer_Streamed_Construct( IDirectFBDataBuffer *thiz, + CoreDFB *core ); + +/* + * file based static data buffer + */ +DFBResult IDirectFBDataBuffer_File_Construct( IDirectFBDataBuffer *thiz, + const char *filename, + CoreDFB *core ); + +/* + * memory based static data buffer + */ +DFBResult IDirectFBDataBuffer_Memory_Construct( IDirectFBDataBuffer *thiz, + const void *data, + unsigned int length, + CoreDFB *core ); + +#endif diff --git a/Source/DirectFB/src/media/idirectfbdatabuffer_file.c b/Source/DirectFB/src/media/idirectfbdatabuffer_file.c new file mode 100755 index 0000000..245ce02 --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbdatabuffer_file.c @@ -0,0 +1,297 @@ +/* + (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 <time.h> +#include <string.h> +#include <errno.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 <misc/util.h> + +#include <direct/interface.h> +#include <direct/mem.h> +#include <direct/messages.h> +#include <direct/stream.h> +#include <direct/util.h> + +#include <media/idirectfbdatabuffer.h> + + + +static void +IDirectFBDataBuffer_File_Destruct( IDirectFBDataBuffer *thiz ) +{ + IDirectFBDataBuffer_File_data *data = + (IDirectFBDataBuffer_File_data*) thiz->priv; + + direct_stream_destroy( data->stream ); + + pthread_mutex_destroy( &data->mutex ); + + IDirectFBDataBuffer_Destruct( thiz ); +} + +static DirectResult +IDirectFBDataBuffer_File_Release( IDirectFBDataBuffer *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer) + + if (--data->ref == 0) + IDirectFBDataBuffer_File_Destruct( thiz ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_File_Flush( IDirectFBDataBuffer *thiz ) +{ + return DFB_UNSUPPORTED; +} + +static DFBResult +IDirectFBDataBuffer_File_Finish( IDirectFBDataBuffer *thiz ) +{ + return DFB_UNSUPPORTED; +} + +static DFBResult +IDirectFBDataBuffer_File_SeekTo( IDirectFBDataBuffer *thiz, + unsigned int offset ) +{ + DFBResult ret; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + if (!direct_stream_seekable( data->stream )) + return DFB_UNSUPPORTED; + + pthread_mutex_lock( &data->mutex ); + ret = direct_stream_seek( data->stream, offset ); + pthread_mutex_unlock( &data->mutex ); + + return ret; +} + +static DFBResult +IDirectFBDataBuffer_File_GetPosition( IDirectFBDataBuffer *thiz, + unsigned int *offset ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + if (!offset) + return DFB_INVARG; + + *offset = direct_stream_offset( data->stream ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_File_GetLength( IDirectFBDataBuffer *thiz, + unsigned int *length ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + if (!length) + return DFB_INVARG; + + *length = direct_stream_length( data->stream ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_File_WaitForData( IDirectFBDataBuffer *thiz, + unsigned int length ) +{ + DFBResult ret; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + pthread_mutex_lock( &data->mutex ); + ret = direct_stream_wait( data->stream, length, NULL ); + pthread_mutex_unlock( &data->mutex ); + + return ret; +} + +static DFBResult +IDirectFBDataBuffer_File_WaitForDataWithTimeout( IDirectFBDataBuffer *thiz, + unsigned int length, + unsigned int seconds, + unsigned int milli_seconds ) +{ + DFBResult ret; + struct timeval tv; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + tv.tv_sec = seconds; + tv.tv_usec = milli_seconds*1000; + + while (pthread_mutex_trylock( &data->mutex )) { + struct timespec t, r; + + if (errno != EBUSY) + return errno2result( errno ); + + t.tv_sec = 0; + t.tv_nsec = 10000; + nanosleep( &t, &r ); + + tv.tv_usec -= (t.tv_nsec - r.tv_nsec + 500) / 1000; + if (tv.tv_usec < 0) { + if (tv.tv_sec < 1) + return DFB_TIMEOUT; + + tv.tv_sec--; + tv.tv_usec += 999999; + } + } + + ret = direct_stream_wait( data->stream, length, &tv ); + + pthread_mutex_unlock( &data->mutex ); + + return ret; +} + +static DFBResult +IDirectFBDataBuffer_File_GetData( IDirectFBDataBuffer *thiz, + unsigned int length, + void *data_buffer, + unsigned int *read_out ) +{ + DFBResult ret; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + if (!data_buffer || !length) + return DFB_INVARG; + + pthread_mutex_lock( &data->mutex ); + ret = direct_stream_read( data->stream, length, data_buffer, read_out ); + pthread_mutex_unlock( &data->mutex ); + + return ret; +} + +static DFBResult +IDirectFBDataBuffer_File_PeekData( IDirectFBDataBuffer *thiz, + unsigned int length, + int offset, + void *data_buffer, + unsigned int *read_out ) +{ + DFBResult ret; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + if (!data_buffer || !length) + return DFB_INVARG; + + pthread_mutex_lock( &data->mutex ); + ret = direct_stream_peek( data->stream, length, + offset, data_buffer, read_out ); + pthread_mutex_unlock( &data->mutex ); + + return ret; +} + +static DFBResult +IDirectFBDataBuffer_File_HasData( IDirectFBDataBuffer *thiz ) +{ + struct timeval tv = {0,0}; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_File) + + return direct_stream_wait( data->stream, 1, &tv ); +} + +static DFBResult +IDirectFBDataBuffer_File_PutData( IDirectFBDataBuffer *thiz, + const void *data_buffer, + unsigned int length ) +{ + return DFB_UNSUPPORTED; +} + +DFBResult +IDirectFBDataBuffer_File_Construct( IDirectFBDataBuffer *thiz, + const char *filename, + CoreDFB *core ) +{ + DFBResult ret; + + DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IDirectFBDataBuffer_File) + + ret = IDirectFBDataBuffer_Construct( thiz, filename, core ); + if (ret) + return ret; + + ret = direct_stream_create( filename, &data->stream ); + if (ret) { + DIRECT_DEALLOCATE_INTERFACE( thiz ); + return ret; + } + + direct_util_recursive_pthread_mutex_init( &data->mutex ); + + thiz->Release = IDirectFBDataBuffer_File_Release; + thiz->Flush = IDirectFBDataBuffer_File_Flush; + thiz->Finish = IDirectFBDataBuffer_File_Finish; + thiz->SeekTo = IDirectFBDataBuffer_File_SeekTo; + thiz->GetPosition = IDirectFBDataBuffer_File_GetPosition; + thiz->GetLength = IDirectFBDataBuffer_File_GetLength; + thiz->WaitForData = IDirectFBDataBuffer_File_WaitForData; + thiz->WaitForDataWithTimeout = IDirectFBDataBuffer_File_WaitForDataWithTimeout; + thiz->GetData = IDirectFBDataBuffer_File_GetData; + thiz->PeekData = IDirectFBDataBuffer_File_PeekData; + thiz->HasData = IDirectFBDataBuffer_File_HasData; + thiz->PutData = IDirectFBDataBuffer_File_PutData; + + return DFB_OK; +} + 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; +} + diff --git a/Source/DirectFB/src/media/idirectfbdatabuffer_streamed.c b/Source/DirectFB/src/media/idirectfbdatabuffer_streamed.c new file mode 100755 index 0000000..5ce1168 --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbdatabuffer_streamed.c @@ -0,0 +1,529 @@ +/* + (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 <fusion/lock.h> + +#include <directfb.h> + +#include <core/coredefs.h> +#include <core/coretypes.h> + +#include <direct/interface.h> +#include <direct/mem.h> +#include <direct/memcpy.h> +#include <direct/util.h> + +#include <media/idirectfbdatabuffer.h> + +typedef struct { + DirectLink link; + + void *data; /* actual data hold */ + unsigned int length; /* length of chunk */ + + unsigned int done; /* number of bytes already consumed */ +} DataChunk; + +static DataChunk * +create_chunk( const void *data, int length ); + +static void +destroy_chunk( DataChunk *chunk ); + +/* + * private data struct of IDirectFBDataBuffer_Streamed + */ +typedef struct { + IDirectFBDataBuffer_data base; + + DirectLink *chunks; /* data chunks */ + + unsigned int length; /* total length of all chunks */ + + bool finished; /* whether Finish() has been called */ + + pthread_mutex_t chunks_mutex; /* mutex lock for accessing + the chunk list */ + + pthread_cond_t wait_condition; /* condition used for idle + wait in WaitForEvent() */ +} IDirectFBDataBuffer_Streamed_data; + +static void +DestroyAllChunks( IDirectFBDataBuffer_Streamed_data *data ); + +static void +ReadChunkData( IDirectFBDataBuffer_Streamed_data *data, + void *buffer, + unsigned int offset, + unsigned int length, + bool flush ); + + +static void +IDirectFBDataBuffer_Streamed_Destruct( IDirectFBDataBuffer *thiz ) +{ + IDirectFBDataBuffer_Streamed_data *data = + (IDirectFBDataBuffer_Streamed_data*) thiz->priv; + + pthread_cond_destroy( &data->wait_condition ); + pthread_mutex_destroy( &data->chunks_mutex ); + + IDirectFBDataBuffer_Destruct( thiz ); +} + +static DirectResult +IDirectFBDataBuffer_Streamed_Release( IDirectFBDataBuffer *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer) + + if (--data->ref == 0) + IDirectFBDataBuffer_Streamed_Destruct( thiz ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_Flush( IDirectFBDataBuffer *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + pthread_mutex_lock( &data->chunks_mutex ); + + DestroyAllChunks( data ); + + pthread_mutex_unlock( &data->chunks_mutex ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_Finish( IDirectFBDataBuffer *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + if (!data->finished) { + data->finished = true; + + pthread_mutex_lock( &data->chunks_mutex ); + pthread_cond_broadcast( &data->wait_condition ); + pthread_mutex_unlock( &data->chunks_mutex ); + } + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_SeekTo( IDirectFBDataBuffer *thiz, + unsigned int offset ) +{ + return DFB_UNSUPPORTED; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_GetPosition( IDirectFBDataBuffer *thiz, + unsigned int *offset ) +{ + return DFB_UNSUPPORTED; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_GetLength( IDirectFBDataBuffer *thiz, + unsigned int *length ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + /* Check arguments. */ + if (!length) + return DFB_INVARG; + + /* Return total length of all chunks. */ + *length = data->length; + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_WaitForData( IDirectFBDataBuffer *thiz, + unsigned int length ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + if (data->finished && !data->chunks) + return DFB_EOF; + + pthread_mutex_lock( &data->chunks_mutex ); + + while (data->length < length && !data->finished) + pthread_cond_wait( &data->wait_condition, &data->chunks_mutex ); + + pthread_mutex_unlock( &data->chunks_mutex ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_WaitForDataWithTimeout( IDirectFBDataBuffer *thiz, + unsigned int length, + unsigned int seconds, + unsigned int milli_seconds ) +{ + struct timespec timeout; + DFBResult ret = DFB_OK; + bool locked = false; + long int nano_seconds = milli_seconds * 1000000; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + if (data->finished && !data->chunks) + return DFB_EOF; + + if (pthread_mutex_trylock( &data->chunks_mutex ) == 0) { + if (data->length >= length) { + pthread_mutex_unlock( &data->chunks_mutex ); + + return DFB_OK; + } + + locked = true; + } + + direct_util_get_monotonic_pthread_timeout(&timeout, seconds, nano_seconds); + + if (!locked) + pthread_mutex_lock( &data->chunks_mutex ); + + while (data->length < length && !data->finished) { + if (pthread_cond_timedwait( &data->wait_condition, + &data->chunks_mutex, + &timeout ) == ETIMEDOUT) + { + ret = DFB_TIMEOUT; + break; + } + } + + pthread_mutex_unlock( &data->chunks_mutex ); + + return ret; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_GetData( IDirectFBDataBuffer *thiz, + unsigned int length, + void *data_buffer, + unsigned int *read_out ) +{ + unsigned int len; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + if (!data_buffer || !length) + return DFB_INVARG; + + pthread_mutex_lock( &data->chunks_mutex ); + + if (!data->chunks) { + pthread_mutex_unlock( &data->chunks_mutex ); + return data->finished ? DFB_EOF : DFB_BUFFEREMPTY; + } + + /* Calculate maximum number of bytes to be read. */ + len = MIN( length, data->length ); + + /* Read data from chunks (destructive). */ + ReadChunkData( data, data_buffer, 0, len, true ); + + /* Decrease total number of bytes. */ + data->length -= len; + + /* Return number of bytes read. */ + if (read_out) + *read_out = len; + + pthread_mutex_unlock( &data->chunks_mutex ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_PeekData( IDirectFBDataBuffer *thiz, + unsigned int length, + int offset, + void *data_buffer, + unsigned int *read_out ) +{ + unsigned int len; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + if (!data_buffer || !length || offset < 0) + return DFB_INVARG; + + pthread_mutex_lock( &data->chunks_mutex ); + + if (!data->chunks || (unsigned int) offset >= data->length) { + pthread_mutex_unlock( &data->chunks_mutex ); + return data->finished ? DFB_EOF : DFB_BUFFEREMPTY; + } + + /* Calculate maximum number of bytes to be read. */ + len = MIN( length, data->length - offset ); + + /* Read data from chunks (non-destructive). */ + ReadChunkData( data, data_buffer, offset, len, false ); + + /* Return number of bytes read. */ + if (read_out) + *read_out = len; + + pthread_mutex_unlock( &data->chunks_mutex ); + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_HasData( IDirectFBDataBuffer *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + /* If there's no chunk there's no data. */ + if (!data->chunks) + return data->finished ? DFB_EOF : DFB_BUFFEREMPTY; + + return DFB_OK; +} + +static DFBResult +IDirectFBDataBuffer_Streamed_PutData( IDirectFBDataBuffer *thiz, + const void *data_buffer, + unsigned int length ) +{ + DataChunk *chunk; + + DIRECT_INTERFACE_GET_DATA(IDirectFBDataBuffer_Streamed) + + /* Check arguments. */ + if (!data_buffer || !length) + return DFB_INVARG; + + /* Fail if Finish() has been called. */ + if (data->finished) + return DFB_UNSUPPORTED; + + /* Create a chunk containing a copy of the provided data. */ + chunk = create_chunk( data_buffer, length ); + if (!chunk) + return DFB_NOSYSTEMMEMORY; + + pthread_mutex_lock( &data->chunks_mutex ); + + /* Append new chunk. */ + direct_list_append( &data->chunks, &chunk->link ); + + /* Increase total length. */ + data->length += length; + + pthread_cond_broadcast( &data->wait_condition ); + + pthread_mutex_unlock( &data->chunks_mutex ); + + return DFB_OK; +} + +DFBResult +IDirectFBDataBuffer_Streamed_Construct( IDirectFBDataBuffer *thiz, + CoreDFB *core ) +{ + DFBResult ret; + + DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IDirectFBDataBuffer_Streamed) + + ret = IDirectFBDataBuffer_Construct( thiz, NULL, core ); + if (ret) + return ret; + + direct_util_recursive_pthread_mutex_init( &data->chunks_mutex ); + direct_util_monotonic_pthread_cond_init( &data->wait_condition ); + + thiz->Release = IDirectFBDataBuffer_Streamed_Release; + thiz->Flush = IDirectFBDataBuffer_Streamed_Flush; + thiz->Finish = IDirectFBDataBuffer_Streamed_Finish; + thiz->SeekTo = IDirectFBDataBuffer_Streamed_SeekTo; + thiz->GetPosition = IDirectFBDataBuffer_Streamed_GetPosition; + thiz->GetLength = IDirectFBDataBuffer_Streamed_GetLength; + thiz->WaitForData = IDirectFBDataBuffer_Streamed_WaitForData; + thiz->WaitForDataWithTimeout = IDirectFBDataBuffer_Streamed_WaitForDataWithTimeout; + thiz->GetData = IDirectFBDataBuffer_Streamed_GetData; + thiz->PeekData = IDirectFBDataBuffer_Streamed_PeekData; + thiz->HasData = IDirectFBDataBuffer_Streamed_HasData; + thiz->PutData = IDirectFBDataBuffer_Streamed_PutData; + + return DFB_OK; +} + +/******************************************************************************/ + +static void +DestroyAllChunks( IDirectFBDataBuffer_Streamed_data *data ) +{ + DirectLink *l, *n; + + D_ASSERT( data != NULL ); + + /* Loop through list. */ + direct_list_foreach_safe (l, n, data->chunks) { + /* Deallocate chunk. */ + destroy_chunk( (DataChunk*) l ); + } + + /* Clear lists. */ + data->chunks = NULL; +} + +static void +ReadChunkData( IDirectFBDataBuffer_Streamed_data *data, + void *buffer, + unsigned int offset, + unsigned int length, + bool flush ) +{ + DirectLink *l, *n; + + D_ASSERT( data != NULL ); + D_ASSERT( buffer != NULL ); + + /* Loop through links. */ + direct_list_foreach_safe (l, n, data->chunks) { + unsigned int len; + unsigned int off = 0; + DataChunk *chunk = (DataChunk*) l; + + /* Is there data to be skipped? */ + if (offset) { + /* Calculate number of bytes to be skipped from this chunk. */ + off = MIN( offset, chunk->length - chunk->done ); + + /* Decrease number of bytes to skipped. */ + offset -= off; + } + + /* Calculate number of bytes to be read from this chunk. */ + len = MIN( length, chunk->length - chunk->done - off ); + + /* Can we read from this chunk? */ + if (len) { + /* Copy as many bytes as possible. */ + direct_memcpy( buffer, chunk->data + chunk->done + off, len ); + + /* Increase write pointer. */ + buffer += len; + + /* Decrease number of bytes to read. */ + length -= len; + } + + /* Destructive read? */ + if (flush) { + /* Increase number of consumed bytes. */ + chunk->done += len + off; + + /* Completely consumed? */ + if (chunk->done == chunk->length) { + /* Remove the chunk from the list. */ + direct_list_remove( &data->chunks, l ); + + /* Deallocate chunk. */ + destroy_chunk( chunk ); + } + } + } + + D_ASSERT( length == 0 ); + D_ASSERT( offset == 0 ); +} + +/******************************************************************************/ + +static DataChunk * +create_chunk( const void *data, int length ) +{ + DataChunk *chunk; + + D_ASSERT( data != NULL ); + D_ASSERT( length > 0 ); + + /* Allocate chunk information. */ + chunk = D_CALLOC( 1, sizeof(DataChunk) ); + if (!chunk) + return NULL; + + /* Allocate chunk data. */ + chunk->data = D_MALLOC( length ); + if (!chunk->data) { + D_FREE( chunk ); + return NULL; + } + + /* Fill chunk data. */ + direct_memcpy( chunk->data, data, length ); + + /* Remember chunk length. */ + chunk->length = length; + + return chunk; +} + +static void +destroy_chunk( DataChunk *chunk ) +{ + D_ASSERT( chunk != NULL ); + D_ASSERT( chunk->data != NULL ); + + /* Deallocate chunk data. */ + D_FREE( chunk->data ); + + /* Deallocate chunk information. */ + D_FREE( chunk ); +} + diff --git a/Source/DirectFB/src/media/idirectfbfont.c b/Source/DirectFB/src/media/idirectfbfont.c new file mode 100755 index 0000000..4ce0946 --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbfont.c @@ -0,0 +1,965 @@ +/* + (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 <math.h> + +#include <sys/fcntl.h> +#include <sys/mman.h> +#include <sys/stat.h> + +#include "directfb.h" + +#include "core/coretypes.h" + +#include "core/fonts.h" + +#include <direct/interface.h> +#include <direct/mem.h> +#include <direct/tree.h> +#include <direct/utf8.h> +
+#include <media/idirectfbfont.h>
+#include <media/idirectfbdatabuffer.h>
+ +#include "misc/util.h" + + +D_DEBUG_DOMAIN( Font, "IDirectFBFont", "DirectFB Font Interface" ); + +/**********************************************************************************************************************/ + +void +IDirectFBFont_Destruct( IDirectFBFont *thiz ) +{ + IDirectFBFont_data *data = (IDirectFBFont_data*)thiz->priv; + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + dfb_font_destroy (data->font); +
+ /* release memory, if any */
+ if (data->content) { + if (data->content_mapped) + munmap( data->content, data->content_size ); + else + D_FREE( data->content ); + } + + DIRECT_DEALLOCATE_INTERFACE( thiz ); +} + +/**********************************************************************************************************************/ + +/* + * increments reference count of font + */ +static DirectResult +IDirectFBFont_AddRef( IDirectFBFont *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + data->ref++; + + return DFB_OK; +} + +/* + * decrements reference count, destructs interface data if reference count is 0 + */ +static DirectResult +IDirectFBFont_Release( IDirectFBFont *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (--data->ref == 0) + IDirectFBFont_Destruct( thiz ); + + return DFB_OK; +} + +/* + * Get the distance from the baseline to the top. + */ +static DFBResult +IDirectFBFont_GetAscender( IDirectFBFont *thiz, int *ascender ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!ascender) + return DFB_INVARG; + + *ascender = data->font->ascender; + + return DFB_OK; +} + +/* + * Get the distance from the baseline to the bottom. + * This is a negative value! + */ +static DFBResult +IDirectFBFont_GetDescender( IDirectFBFont *thiz, int *descender ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!descender) + return DFB_INVARG; + + *descender = data->font->descender; + + return DFB_OK; +} + +/* + * Get the height of this font. + */ +static DFBResult +IDirectFBFont_GetHeight( IDirectFBFont *thiz, int *height ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!height) + return DFB_INVARG; + + *height = data->font->height; + + return DFB_OK; +} + +/* + * Get the line spacing vector of this font. + */ +static DFBResult +IDirectFBFont_GetLineSpacingVector( IDirectFBFont *thiz, int *xspacing, int *yspacing ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!xspacing && !yspacing) + return DFB_INVARG; + + if (xspacing) { + *xspacing = - data->font->height * data->font->up_unit_x; + } + + if (yspacing) { + *yspacing = - data->font->height * data->font->up_unit_y; + } + + return DFB_OK; +} + +/* + * Get the maximum character width. + */ +static DFBResult +IDirectFBFont_GetMaxAdvance( IDirectFBFont *thiz, int *maxadvance ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!maxadvance) + return DFB_INVARG; + + *maxadvance = data->font->maxadvance; + + return DFB_OK; +} + +/* + * Get the kerning to apply between two glyphs. + */ +static DFBResult +IDirectFBFont_GetKerning( IDirectFBFont *thiz, + unsigned int prev, unsigned int current, + int *kern_x, int *kern_y) +{ + DFBResult ret; + CoreFont *font; + int x = 0, y = 0; + unsigned int prev_index, current_index; + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!kern_x && !kern_y) + return DFB_INVARG; + + font = data->font; + + dfb_font_lock( font ); + + if (font->GetKerning) { + ret = dfb_font_decode_character( font, data->encoding, prev, &prev_index ); + if (ret) + goto error; + + ret = dfb_font_decode_character( font, data->encoding, current, ¤t_index ); + if (ret) + goto error; + + ret = font->GetKerning (font, prev_index, current_index, &x, &y); + if (ret) + goto error; + } + + dfb_font_unlock( font ); + + if (kern_x) + *kern_x = x; + if (kern_y) + *kern_y = y; + + return DFB_OK; + + +error: + dfb_font_unlock( font ); + + return ret; +} + +/* + * Get the logical and ink extents of the specified string. + */ +static DFBResult +IDirectFBFont_GetStringExtents( IDirectFBFont *thiz, + const char *text, int bytes, + DFBRectangle *logical_rect, + DFBRectangle *ink_rect ) +{ + DFBResult ret; + CoreFont *font; + int xbaseline = 0; + int ybaseline = 0; + + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + + if (!text) + return DFB_INVARG; + + if (!logical_rect && !ink_rect) + return DFB_INVARG; + + if (bytes < 0) + bytes = strlen (text); + + if (ink_rect) + memset (ink_rect, 0, sizeof (DFBRectangle)); + + font = data->font; + + dfb_font_lock( font ); + + if (bytes > 0) { + int i, num; + unsigned int prev = 0; + unsigned int indices[bytes]; + + /* Decode string to character indices. */ + ret = dfb_font_decode_text( font, data->encoding, text, bytes, indices, &num ); + if (ret) { + dfb_font_unlock( font ); + return ret; + } + + for (i=0; i<num; i++) { + unsigned int current = indices[i]; + CoreGlyphData *glyph; + + if (dfb_font_get_glyph_data( font, current, 0, &glyph ) == DFB_OK) { // FIXME: support font layers + int kx, ky = 0; + + if (prev && font->GetKerning && + font->GetKerning( font, prev, current, &kx, &ky ) == DFB_OK) { + xbaseline += kx; + ybaseline += ky; + } + + if (ink_rect) { + DFBRectangle glyph_rect = { xbaseline + glyph->left, + ybaseline + glyph->top, + glyph->width, glyph->height}; + dfb_rectangle_union (ink_rect, &glyph_rect); + } + + xbaseline += glyph->xadvance; + ybaseline += glyph->yadvance; + } + + prev = current; + } + } + + if (logical_rect) { + // We already have the text baseline vector in (xbaseline,ybaseline). + // Now find the ascender and descender vectors: + int xascender = font->ascender * font->up_unit_x; + int yascender = font->ascender * font->up_unit_y; + int xdescender = font->descender * font->up_unit_x; + int ydescender = font->descender * font->up_unit_y; + + // Now find top/bottom left/right points relative to the text: + int top_left_x = xascender; + int top_left_y = yascender; + int bottom_left_x = xdescender; + int bottom_left_y = ydescender; + int top_right_x = top_left_x + xbaseline; + int top_right_y = top_left_y + ybaseline; + int bottom_right_x = bottom_left_x + xbaseline; + int bottom_right_y = bottom_left_y + ybaseline; + + // The logical rectangle is the bounding-box of these points: +#define MIN4(a,b,c,d) (MIN(MIN((a),(b)),MIN((c),(d)))) +#define MAX4(a,b,c,d) (MAX(MAX((a),(b)),MAX((c),(d)))) + logical_rect->x = MIN4(top_left_x, bottom_left_x, top_right_x, bottom_right_x); + logical_rect->y = MIN4(top_left_y, bottom_left_y, top_right_y, bottom_right_y); + logical_rect->w = MAX4(top_left_x, bottom_left_x, top_right_x, bottom_right_x) - logical_rect->x; + logical_rect->h = MAX4(top_left_y, bottom_left_y, top_right_y, bottom_right_y) - logical_rect->y; + } + + if (ink_rect) { + if (ink_rect->w < 0) { /* PBE FIXME what is this doing? */ + ink_rect->x += ink_rect->w; + ink_rect->w = -ink_rect->w; + } + ink_rect->x += font->ascender * font->up_unit_x; + ink_rect->y += font->ascender * font->up_unit_y; + } + + dfb_font_unlock( font ); + + return DFB_OK; +} + +/* + * Get the logical width of the specified string. + */ +static DFBResult +IDirectFBFont_GetStringWidth( IDirectFBFont *thiz, + const char *text, + int bytes, + int *ret_width ) +{ + DFBResult ret; + int xsize = 0; + int ysize = 0; + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!text || !ret_width) + return DFB_INVARG; + + if (bytes < 0) + bytes = strlen (text); + + if (bytes > 0) { + int i, num, kx, ky; + unsigned int prev = 0; + unsigned int indices[bytes]; + CoreFont *font = data->font; + + dfb_font_lock( font ); + + /* Decode string to character indices. */ + ret = dfb_font_decode_text( font, data->encoding, text, bytes, indices, &num ); + if (ret) { + dfb_font_unlock( font ); + return ret; + } + + /* Calculate string width. */ + for (i=0; i<num; i++) { + unsigned int current = indices[i]; + CoreGlyphData *glyph; + + if (dfb_font_get_glyph_data( font, current, 0, &glyph ) == DFB_OK) { // FIXME: support font layers + xsize += glyph->xadvance; + ysize += glyph->yadvance; + + if (prev && font->GetKerning && + font->GetKerning( font, prev, current, &kx, &ky ) == DFB_OK) { + xsize += kx; + ysize += ky; + } + } + + prev = current; + } + + dfb_font_unlock( font ); + } + + if (!ysize) { + *ret_width = xsize; + } + else if (!xsize) { + *ret_width = ysize; + } + else { + *ret_width = sqrt(xsize*xsize + ysize*ysize); + } + + return DFB_OK; +} + +/* + * Get the extents of the specified glyph. + */ +static DFBResult +IDirectFBFont_GetGlyphExtents( IDirectFBFont *thiz, + unsigned int character, + DFBRectangle *rect, + int *advance ) +{ + DFBResult ret; + CoreFont *font; + CoreGlyphData *glyph; + unsigned int index; + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!rect && !advance) + return DFB_INVARG; + + font = data->font; + + dfb_font_lock( font ); + + ret = dfb_font_decode_character( font, data->encoding, character, &index ); + if (ret) { + dfb_font_unlock( font ); + return ret; + } + + if (dfb_font_get_glyph_data (font, index, 0, &glyph) != DFB_OK) { // FIXME: support font layers + if (rect) + rect->x = rect->y = rect->w = rect->h = 0; + + if (advance) + *advance = 0; + } + else { + if (rect) { + rect->x = glyph->left; + rect->y = glyph->top - font->ascender; + rect->w = glyph->width; + rect->h = glyph->height; + } + + if (advance) + *advance = glyph->xadvance; + } + + dfb_font_unlock( font ); + + return DFB_OK; +} + +static DFBResult +IDirectFBFont_GetStringBreak( IDirectFBFont *thiz, + const char *text, + int bytes, + int max_width, + int *ret_width, + int *ret_str_length, + const char **ret_next_line) +{ + DFBResult ret; + CoreFont *font; + const u8 *string; + const u8 *end; + CoreGlyphData *glyph; + int kern_x; + int kern_y; + int length = 0; + int xsize = 0; + int ysize = 0; + int width = 0; + unichar current; + unsigned int index; + unsigned int prev = 0; + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + if (!text || !ret_next_line || !ret_str_length || !ret_width) + return DFB_INVARG; + + /* FIXME: Try to change the font module API *slightly* to support this. */ + if (data->encoding != DTEID_UTF8) + return DFB_UNSUPPORTED; + + if (bytes < 0) + bytes = strlen (text); + + if (!bytes) { + *ret_next_line = NULL; + *ret_str_length = 0; + *ret_width = 0; + + return DFB_OK; + } + + font = data->font; + string = (const u8*) text; + end = string + bytes; + *ret_next_line = NULL; + + dfb_font_lock( font ); + + do { + *ret_width = width; + length ++; + + current = DIRECT_UTF8_GET_CHAR( string ); + + string += DIRECT_UTF8_SKIP( string[0] ); + + if (current == ' ' || current == 0x0a) { + *ret_next_line = (const char*) string; + *ret_str_length = length; + *ret_width = width; + } + + ret = dfb_font_decode_character( font, data->encoding, current, &index ); + if (ret) + continue; + + ret = dfb_font_get_glyph_data( font, index, 0, &glyph ); // FIXME: support font layers + if (ret) + continue; + + xsize += glyph->xadvance; + ysize += glyph->yadvance; + + if (prev && font->GetKerning && font->GetKerning( font, prev, index, &kern_x, &kern_y) == DFB_OK) { + xsize += kern_x; + ysize += kern_y; + } + + if (!ysize) { + width = xsize; + } + else if (!xsize) { + width = ysize; + } + else { + width = sqrt(xsize*xsize + ysize*ysize); + } + + prev = index; + } while (width < max_width && string < end && current != 0x0a); + + dfb_font_unlock( font ); + + if (width<max_width && string >= end) { + *ret_next_line = NULL; + *ret_str_length = length; + *ret_width = width; + + return DFB_OK; + } + + if (*ret_next_line == NULL) { + if (length == 1) { + *ret_str_length = length; + *ret_next_line = (const char*) string; + *ret_width = width; + } else { + *ret_str_length = length-1; + *ret_next_line = (const char*) string-1; + /* ret_width already set in the loop */ + } + } + + return DFB_OK; +} + +static DFBResult +IDirectFBFont_SetEncoding( IDirectFBFont *thiz, + DFBTextEncodingID encoding ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p, %d )\n", __FUNCTION__, thiz, encoding ); + + if (encoding > data->font->last_encoding) + return DFB_IDNOTFOUND; + + data->encoding = encoding; + + return DFB_OK; +} + +static DFBResult +IDirectFBFont_EnumEncodings( IDirectFBFont *thiz, + DFBTextEncodingCallback callback, + void *context ) +{ + int i; + CoreFont *font; + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + if (!callback) + return DFB_INVARG; + + D_DEBUG_AT( Font, "%s( %p, %p, %p )\n", __FUNCTION__, thiz, callback, context ); + + font = data->font; + + if (callback( DTEID_UTF8, "UTF8", context ) == DFENUM_OK) { + for (i=DTEID_OTHER; i<=font->last_encoding; i++) { + if (callback( i, font->encodings[i]->name, context ) != DFENUM_OK) + break; + } + } + + return DFB_OK; +} + +static DFBResult +IDirectFBFont_FindEncoding( IDirectFBFont *thiz, + const char *name, + DFBTextEncodingID *ret_id ) +{ + int i; + CoreFont *font; + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + if (!name || !ret_id) + return DFB_INVARG; + + D_DEBUG_AT( Font, "%s( %p, '%s', %p )\n", __FUNCTION__, thiz, name, ret_id ); + + if (!strcasecmp( name, "UTF8" )) { + *ret_id = DTEID_UTF8; + return DFB_OK; + } + + font = data->font; + + for (i=DTEID_OTHER; i<=font->last_encoding; i++) { + if (!strcasecmp( name, font->encodings[i]->name )) { + *ret_id = i; + return DFB_OK; + } + } + + return DFB_IDNOTFOUND; +} + +/* + * Get the extents of the specified glyph. + */ +static DFBResult +IDirectFBFont_GetGlyphExtentsXY( IDirectFBFont *thiz, + unsigned int character, + DFBRectangle *rect, + int *xadvance, + int *yadvance ) +{ + DFBResult ret; + CoreFont *font; + CoreGlyphData *glyph; + unsigned int index; + + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!rect && !xadvance && !yadvance) + return DFB_INVARG; + + font = data->font; + + dfb_font_lock( font ); + + ret = dfb_font_decode_character( font, data->encoding, character, &index ); + if (ret) { + dfb_font_unlock( font ); + return ret; + } + + if (dfb_font_get_glyph_data (font, index, 0, &glyph) != DFB_OK) { // FIXME: support font layers + if (rect) + rect->x = rect->y = rect->w = rect->h = 0; + + if (xadvance) + *xadvance = 0; + + if (yadvance) + *yadvance = 0; + } + else { + if (rect) { + rect->x = glyph->left + font->ascender * font->up_unit_x; + rect->y = glyph->top + font->ascender * font->up_unit_y; + rect->w = glyph->width; + rect->h = glyph->height; + } + + if (xadvance) + *xadvance = glyph->xadvance; + + if (yadvance) + *yadvance = glyph->yadvance; + } + + dfb_font_unlock( font ); + + return DFB_OK; +} + +/* + * Get the description of the font. + */ +static DFBResult +IDirectFBFont_GetDescription( IDirectFBFont *thiz, + DFBFontDescription *ret_description ) +{ + DIRECT_INTERFACE_GET_DATA(IDirectFBFont) + + D_DEBUG_AT( Font, "%s( %p )\n", __FUNCTION__, thiz ); + + if (!ret_description) + return DFB_INVARG; + + *ret_description = data->font->description; + + return DFB_OK; +} + +/**********************************************************************************************************************/ + +DFBResult +IDirectFBFont_Construct( IDirectFBFont *thiz, CoreFont *font ) +{ + DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IDirectFBFont) + + data->ref = 1; + data->font = font; + + thiz->AddRef = IDirectFBFont_AddRef; + thiz->Release = IDirectFBFont_Release; + thiz->GetAscender = IDirectFBFont_GetAscender; + thiz->GetDescender = IDirectFBFont_GetDescender; + thiz->GetHeight = IDirectFBFont_GetHeight; + thiz->GetMaxAdvance = IDirectFBFont_GetMaxAdvance; + thiz->GetKerning = IDirectFBFont_GetKerning; + thiz->GetStringWidth = IDirectFBFont_GetStringWidth; + thiz->GetStringExtents = IDirectFBFont_GetStringExtents; + thiz->GetGlyphExtents = IDirectFBFont_GetGlyphExtents; + thiz->GetStringBreak = IDirectFBFont_GetStringBreak; + thiz->SetEncoding = IDirectFBFont_SetEncoding; + thiz->EnumEncodings = IDirectFBFont_EnumEncodings; + thiz->FindEncoding = IDirectFBFont_FindEncoding; + thiz->GetLineSpacingVector = IDirectFBFont_GetLineSpacingVector; + thiz->GetGlyphExtentsXY = IDirectFBFont_GetGlyphExtentsXY; + thiz->GetDescription = IDirectFBFont_GetDescription; + + return DFB_OK; +} + +static DFBResult +try_map_file( IDirectFBDataBuffer_data *buffer_data, + IDirectFBFont_ProbeContext *ctx ) +{ + /* try to map the "file" content first */
+ if (!access( buffer_data->filename, O_RDONLY )) { + int fd; + struct stat st; + + fd = open( buffer_data->filename, O_RDONLY ); + if (fd < 0) { + D_PERROR( "IDirectFBFont: Could not open '%s'\n", buffer_data->filename ); + return DFB_IO; + } + + if (fstat( fd, &st )) { + D_PERROR( "IDirectFBFont: Could not stat '%s'\n", buffer_data->filename ); + close( fd ); + return DFB_IO; + } + + ctx->content = mmap( NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0 ); + if (ctx->content == MAP_FAILED) { + D_PERROR( "IDirectFBFont: Could not mmap '%s'\n", buffer_data->filename ); + close( fd ); + return DFB_IO; + } + + ctx->content_size = st.st_size; + ctx->content_mapped = true; + + close( fd ); + + return DFB_OK; + } + + return DFB_UNSUPPORTED; +} +
+static void +unmap_or_free( IDirectFBFont_ProbeContext *ctx ) +{ + if (ctx->content) { + if (ctx->content_mapped) + munmap( ctx->content, ctx->content_size ); + else + D_FREE( ctx->content ); + } +} +
+DFBResult
+IDirectFBFont_CreateFromBuffer( IDirectFBDataBuffer *buffer,
+ CoreDFB *core,
+ const DFBFontDescription *desc,
+ IDirectFBFont **interface )
+{
+ DFBResult ret;
+ DirectInterfaceFuncs *funcs = NULL;
+ IDirectFBDataBuffer_data *buffer_data;
+ IDirectFBFont *ifont;
+ IDirectFBFont_ProbeContext ctx = {0};
+
+ /* Get the private information of the data buffer. */
+ buffer_data = (IDirectFBDataBuffer_data*) buffer->priv;
+ if (!buffer_data)
+ return DFB_DEAD;
+
+ /* Provide a fallback for image providers without data buffer support. */
+ ctx.filename = buffer_data->filename;
+
+ /* try to map the "file" content first */
+ if (try_map_file( buffer_data, &ctx ) != DFB_OK) { + /* try to load the "file" content from the buffer */
+
+ /* we need to be able to seek (this implies non-streamed,
+ so we also know the size) so we can reuse the buffer */
+ if (buffer->SeekTo( buffer, 0 ) == DFB_OK) {
+ unsigned int size, got;
+
+ /* get the "file" length */
+ buffer->GetLength( buffer, &size );
+
+ ctx.content = D_MALLOC( size );
+ if (!ctx.content)
+ return DR_NOLOCALMEMORY;
+
+ ctx.content_size = 0;
+
+ while (ctx.content_size < size) {
+ unsigned int get = size - ctx.content_size;
+
+ if (get > 8192)
+ get = 8192;
+
+ ret = buffer->WaitForData( buffer, get );
+ if (ret) {
+ D_DERROR( ret, "%s: WaitForData failed!\n", __FUNCTION__ );
+ break;
+ }
+
+ ret = buffer->GetData( buffer, get, ctx.content + ctx.content_size, &got );
+ if (ret) {
+ D_DERROR( ret, "%s: GetData failed!\n", __FUNCTION__ );
+ break;
+ }
+
+ if (!got)
+ break;
+
+ ctx.content_size += got;
+ }
+
+ if (ctx.content_size != size) {
+ D_ERROR( "%s: Got size %u differs from supposed %u!\n", __FUNCTION__, ctx.content_size, size );
+ D_FREE( ctx.content );
+ return DFB_FAILURE;
+ }
+ }
+ } +
+ /* Find a suitable implementation. */
+ ret = DirectGetInterface( &funcs, "IDirectFBFont", NULL, DirectProbeInterface, &ctx );
+ if (ret) {
+ unmap_or_free( &ctx );
+ return ret;
+ }
+
+ DIRECT_ALLOCATE_INTERFACE( ifont, IDirectFBFont );
+
+ /* Construct the interface. */
+ ret = funcs->Construct( ifont, core, &ctx, desc );
+ if (ret) {
+ unmap_or_free( &ctx );
+ return ret;
+ }
+
+ /* store pointer for deletion at destroy */
+ {
+ IDirectFBFont_data *data = (IDirectFBFont_data*)(ifont->priv);
+ data->content = ctx.content;
+ data->content_size = ctx.content_size;
+ data->content_mapped = ctx.content_mapped;
+ }
+
+ *interface = ifont;
+
+ return DFB_OK;
+}
+
diff --git a/Source/DirectFB/src/media/idirectfbfont.h b/Source/DirectFB/src/media/idirectfbfont.h new file mode 100755 index 0000000..85bdb0c --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbfont.h @@ -0,0 +1,82 @@ +/* + (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. +*/ + +#ifndef __IDIRECTFBFONT_H__ +#define __IDIRECTFBFONT_H__ + +#include <directfb.h> + +#include <core/coretypes.h> + +/* + * probing context + */ +typedef struct { + /* Only set if databuffer is created from file.
+ deprecated - use memory location below. */
+ const char *filename; +
+ /* if !=NULL, pointer to the file content */
+ unsigned char *content;
+ unsigned int content_size;
+ bool content_mapped; +} IDirectFBFont_ProbeContext; + +DFBResult
+IDirectFBFont_CreateFromBuffer( IDirectFBDataBuffer *buffer,
+ CoreDFB *core,
+ const DFBFontDescription *desc,
+ IDirectFBFont **interface );
+
+/**********************************************************************************************************************/
+
+/* + * private data struct of IDirectFBFont + * used by implementors of IDirectFBFont
+ */ +typedef struct { + int ref; /* reference counter */ + CoreFont *font; /* pointer to core font */ + unsigned char *content; /* possible allocation, free at intf. close */
+ unsigned int content_size;
+ bool content_mapped; + + DFBTextEncodingID encoding; /* text encoding */ +} IDirectFBFont_data; + +/* + * common code to construct the interface (internal usage only) + */ +DFBResult IDirectFBFont_Construct( IDirectFBFont *thiz, CoreFont *font ); + +/* + * deinitialize font and its surfaces + */ +void IDirectFBFont_Destruct( IDirectFBFont *thiz ); + +#endif diff --git a/Source/DirectFB/src/media/idirectfbimageprovider.c b/Source/DirectFB/src/media/idirectfbimageprovider.c new file mode 100755 index 0000000..f54319c --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbimageprovider.c @@ -0,0 +1,167 @@ +/* + (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 <stddef.h> +#include <string.h> + +#include <directfb.h> + +#include <core/core.h> + +#include <direct/interface.h> +#include <direct/mem.h> + +#include <media/idirectfbimageprovider.h> +#include <media/idirectfbdatabuffer.h> + + +static DirectResult +IDirectFBImageProvider_AddRef( IDirectFBImageProvider *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DirectResult +IDirectFBImageProvider_Release( IDirectFBImageProvider *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBImageProvider_GetSurfaceDescription( IDirectFBImageProvider *thiz, + DFBSurfaceDescription *ret_dsc ) +{ + if (!ret_dsc) + return DFB_INVARG; + + ret_dsc->flags = DSDESC_NONE; + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBImageProvider_GetImageDescription( IDirectFBImageProvider *thiz, + DFBImageDescription *ret_dsc ) +{ + if (!ret_dsc) + return DFB_INVARG; + + ret_dsc->caps = DICAPS_NONE; + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBImageProvider_RenderTo( IDirectFBImageProvider *thiz, + IDirectFBSurface *destination, + const DFBRectangle *destination_rect ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBImageProvider_SetRenderCallback( IDirectFBImageProvider *thiz, + DIRenderCallback callback, + void *callback_data ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBImageProvider_WriteBack( IDirectFBImageProvider *thiz, + IDirectFBSurface *surface, + const DFBRectangle *src_rect, + const char *filename ) +{ + return DFB_UNIMPLEMENTED; +} + +static void +IDirectFBImageProvider_Construct( IDirectFBImageProvider *thiz ) +{ + thiz->AddRef = IDirectFBImageProvider_AddRef; + thiz->Release = IDirectFBImageProvider_Release; + thiz->GetSurfaceDescription = IDirectFBImageProvider_GetSurfaceDescription; + thiz->GetImageDescription = IDirectFBImageProvider_GetImageDescription; + thiz->RenderTo = IDirectFBImageProvider_RenderTo; + thiz->SetRenderCallback = IDirectFBImageProvider_SetRenderCallback; + thiz->WriteBack = IDirectFBImageProvider_WriteBack; +} + +DFBResult +IDirectFBImageProvider_CreateFromBuffer( IDirectFBDataBuffer *buffer, + CoreDFB *core, + IDirectFBImageProvider **interface ) +{ + DFBResult ret; + DirectInterfaceFuncs *funcs = NULL; + IDirectFBDataBuffer_data *buffer_data; + IDirectFBImageProvider *imageprovider; + IDirectFBImageProvider_ProbeContext ctx; + + /* Get the private information of the data buffer. */ + buffer_data = (IDirectFBDataBuffer_data*) buffer->priv; + if (!buffer_data) + return DFB_DEAD; + + /* Clear for safety, especially header data. */ + memset( &ctx, 0, sizeof(ctx) ); + + /* Provide a fallback for image providers without data buffer support. */ + ctx.filename = buffer_data->filename; + + /* Wait until 32 bytes are available. */ + ret = buffer->WaitForData( buffer, 32 ); + if (ret) + return ret; + + /* Read the first 32 bytes. */ + buffer->PeekData( buffer, 32, 0, ctx.header, NULL ); + + /* Find a suitable implementation. */ + ret = DirectGetInterface( &funcs, "IDirectFBImageProvider", NULL, DirectProbeInterface, &ctx ); + if (ret) + return ret; + + DIRECT_ALLOCATE_INTERFACE( imageprovider, IDirectFBImageProvider ); + + /* Initialize interface pointers. */ + IDirectFBImageProvider_Construct( imageprovider ); + + /* Construct the interface. */ + ret = funcs->Construct( imageprovider, buffer, core ); + if (ret) + return ret; + + *interface = imageprovider; + + return DFB_OK; +} + diff --git a/Source/DirectFB/src/media/idirectfbimageprovider.h b/Source/DirectFB/src/media/idirectfbimageprovider.h new file mode 100755 index 0000000..afbd613 --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbimageprovider.h @@ -0,0 +1,48 @@ +/* + (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. +*/ + +#ifndef __IDIRECTFBIMAGEPROVIDER_H__ +#define __IDIRECTFBIMAGEPROVIDER_H__ + +#include <core/coretypes.h> + +/* + * probing context + */ +typedef struct { + unsigned char header[32]; + + const char *filename; /* Only set if databuffer is created from file. */ +} IDirectFBImageProvider_ProbeContext; + +DFBResult +IDirectFBImageProvider_CreateFromBuffer( IDirectFBDataBuffer *buffer, + CoreDFB *core, + IDirectFBImageProvider **interface ); + +#endif diff --git a/Source/DirectFB/src/media/idirectfbvideoprovider.c b/Source/DirectFB/src/media/idirectfbvideoprovider.c new file mode 100755 index 0000000..fcea1ba --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbvideoprovider.c @@ -0,0 +1,387 @@ +/* + (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 <stddef.h> +#include <string.h> + +#include <directfb.h> + +#include <direct/interface.h> +#include <direct/mem.h> + +#include <media/idirectfbvideoprovider.h> +#include <media/idirectfbdatabuffer.h> + + +static DirectResult +IDirectFBVideoProvider_AddRef( IDirectFBVideoProvider *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DirectResult +IDirectFBVideoProvider_Release( IDirectFBVideoProvider *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetCapabilities( IDirectFBVideoProvider *thiz, + DFBVideoProviderCapabilities *ret_caps ) +{ + if (!ret_caps) + return DFB_INVARG; + + *ret_caps = 0; + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetSurfaceDescription( IDirectFBVideoProvider *thiz, + DFBSurfaceDescription *ret_dsc ) +{ + if (!ret_dsc) + return DFB_INVARG; + + ret_dsc->flags = DSDESC_NONE; + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetStreamDescription( IDirectFBVideoProvider *thiz, + DFBStreamDescription *ret_dsc ) +{ + if (!ret_dsc) + return DFB_INVARG; + + memset( ret_dsc, 0, sizeof(DFBStreamDescription) ); + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetBufferOccupancy( IDirectFBVideoProvider *thiz, + DFBBufferOccupancy *ret_occ ) +{ + if (!ret_occ) + return DFB_INVARG; + + memset( ret_occ, 0, sizeof(DFBBufferOccupancy) ); + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetBufferThresholds( IDirectFBVideoProvider *thiz, + DFBBufferThresholds *ret_thresh ) +{ + if (!ret_thresh) + return DFB_INVARG; + + memset( ret_thresh, 0, sizeof(DFBBufferThresholds) ); + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetBufferThresholds( IDirectFBVideoProvider *thiz, + DFBBufferThresholds thresh ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_PlayTo( IDirectFBVideoProvider *thiz, + IDirectFBSurface *destination, + const DFBRectangle *destination_rect, + DVFrameCallback callback, + void *ctx ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_Stop( IDirectFBVideoProvider *thiz ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetStatus( IDirectFBVideoProvider *thiz, + DFBVideoProviderStatus *ret_status ) +{ + if (!ret_status) + return DFB_INVARG; + + *ret_status = DVSTATE_UNKNOWN; + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SeekTo( IDirectFBVideoProvider *thiz, + double seconds ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetPos( IDirectFBVideoProvider *thiz, + double *ret_seconds ) +{ + if (!ret_seconds) + return DFB_INVARG; + + *ret_seconds = 0.0; + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetLength( IDirectFBVideoProvider *thiz, + double *ret_seconds ) +{ + if (!ret_seconds) + return DFB_INVARG; + + *ret_seconds = 0.0; + + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetColorAdjustment( IDirectFBVideoProvider *thiz, + DFBColorAdjustment *ret_adj ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetColorAdjustment( IDirectFBVideoProvider *thiz, + const DFBColorAdjustment *adj ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SendEvent( IDirectFBVideoProvider *thiz, + const DFBEvent *event ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetPlaybackFlags( IDirectFBVideoProvider *thiz, + DFBVideoProviderPlaybackFlags flags ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetSpeed( IDirectFBVideoProvider *thiz, + double multiplier ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetSpeed( IDirectFBVideoProvider *thiz, + double *ret_multiplier ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetVolume( IDirectFBVideoProvider *thiz, + float level ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetVolume( IDirectFBVideoProvider *thiz, + float *ret_level ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetStreamAttributes(IDirectFBVideoProvider *thiz, + DFBStreamAttributes attr) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetAudioOutputs(IDirectFBVideoProvider *thiz, + DFBVideoProviderAudioUnits* audioUnits) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_GetAudioOutputs(IDirectFBVideoProvider *thiz, + DFBVideoProviderAudioUnits* audioUnits) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_SetAudioDelay( IDirectFBVideoProvider *thiz, + long delay ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_CreateEventBuffer( IDirectFBVideoProvider *thiz, + IDirectFBEventBuffer **buffer ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_AttachEventBuffer( IDirectFBVideoProvider *thiz, + IDirectFBEventBuffer *buffer ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_EnableEvents(IDirectFBVideoProvider *thiz, + DFBVideoProviderEventType mask ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_DisableEvents(IDirectFBVideoProvider *thiz, + DFBVideoProviderEventType mask ) +{ + return DFB_UNIMPLEMENTED; +} + +static DFBResult +IDirectFBVideoProvider_DetachEventBuffer( IDirectFBVideoProvider *thiz, + IDirectFBEventBuffer *buffer ) +{ + return DFB_UNIMPLEMENTED; +} + +static void +IDirectFBVideoProvider_Construct( IDirectFBVideoProvider *thiz ) +{ + thiz->AddRef = IDirectFBVideoProvider_AddRef; + thiz->Release = IDirectFBVideoProvider_Release; + thiz->GetCapabilities = IDirectFBVideoProvider_GetCapabilities; + thiz->GetSurfaceDescription = IDirectFBVideoProvider_GetSurfaceDescription; + thiz->GetStreamDescription = IDirectFBVideoProvider_GetStreamDescription; + thiz->GetBufferOccupancy = IDirectFBVideoProvider_GetBufferOccupancy; + thiz->SetBufferThresholds = IDirectFBVideoProvider_SetBufferThresholds; + thiz->GetBufferThresholds = IDirectFBVideoProvider_GetBufferThresholds; + thiz->PlayTo = IDirectFBVideoProvider_PlayTo; + thiz->Stop = IDirectFBVideoProvider_Stop; + thiz->GetStatus = IDirectFBVideoProvider_GetStatus; + thiz->SeekTo = IDirectFBVideoProvider_SeekTo; + thiz->GetPos = IDirectFBVideoProvider_GetPos; + thiz->GetLength = IDirectFBVideoProvider_GetLength; + thiz->GetColorAdjustment = IDirectFBVideoProvider_GetColorAdjustment; + thiz->SetColorAdjustment = IDirectFBVideoProvider_SetColorAdjustment; + thiz->SendEvent = IDirectFBVideoProvider_SendEvent; + thiz->SetPlaybackFlags = IDirectFBVideoProvider_SetPlaybackFlags; + thiz->SetSpeed = IDirectFBVideoProvider_SetSpeed; + thiz->GetSpeed = IDirectFBVideoProvider_GetSpeed; + thiz->SetVolume = IDirectFBVideoProvider_SetVolume; + thiz->GetVolume = IDirectFBVideoProvider_GetVolume; + thiz->SetStreamAttributes = IDirectFBVideoProvider_SetStreamAttributes; + thiz->SetAudioOutputs = IDirectFBVideoProvider_SetAudioOutputs; + thiz->GetAudioOutputs = IDirectFBVideoProvider_GetAudioOutputs; + thiz->CreateEventBuffer = IDirectFBVideoProvider_CreateEventBuffer; + thiz->AttachEventBuffer = IDirectFBVideoProvider_AttachEventBuffer; + thiz->EnableEvents = IDirectFBVideoProvider_EnableEvents; + thiz->DisableEvents = IDirectFBVideoProvider_DisableEvents; + thiz->DetachEventBuffer = IDirectFBVideoProvider_DetachEventBuffer; + thiz->SetAudioDelay = IDirectFBVideoProvider_SetAudioDelay; +} + + +DFBResult +IDirectFBVideoProvider_CreateFromBuffer( IDirectFBDataBuffer *buffer, + CoreDFB *core, + IDirectFBVideoProvider **interface ) +{ + DFBResult ret; + DirectInterfaceFuncs *funcs = NULL; + IDirectFBDataBuffer_data *buffer_data; + IDirectFBVideoProvider *videoprovider; + IDirectFBVideoProvider_ProbeContext ctx; + + /* Get the private information of the data buffer. */ + buffer_data = (IDirectFBDataBuffer_data*) buffer->priv; + if (!buffer_data) + return DFB_DEAD; + + /* Provide a fallback for video providers without data buffer support. */ + ctx.filename = buffer_data->filename; + ctx.buffer = buffer; + + /* Wait until 64 bytes are available. */ + ret = buffer->WaitForData( buffer, sizeof(ctx.header) ); + if (ret) + return ret; + + /* Clear context header. */ + memset( ctx.header, 0, sizeof(ctx.header) ); + + /* Read the first 64 bytes. */ + buffer->PeekData( buffer, sizeof(ctx.header), 0, ctx.header, NULL ); + + /* Find a suitable implementation. */ + ret = DirectGetInterface( &funcs, "IDirectFBVideoProvider", NULL, DirectProbeInterface, &ctx ); + if (ret) + return ret; + + DIRECT_ALLOCATE_INTERFACE( videoprovider, IDirectFBVideoProvider ); + + /* Initialize interface pointers. */ + IDirectFBVideoProvider_Construct( videoprovider ); + + /* Construct the interface. */ + ret = funcs->Construct( videoprovider, buffer, core ); + if (ret) + return ret; + + *interface = videoprovider; + + return DFB_OK; +} + diff --git a/Source/DirectFB/src/media/idirectfbvideoprovider.h b/Source/DirectFB/src/media/idirectfbvideoprovider.h new file mode 100755 index 0000000..24e9ea1 --- /dev/null +++ b/Source/DirectFB/src/media/idirectfbvideoprovider.h @@ -0,0 +1,54 @@ +/* + (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. +*/ + +#ifndef __IDIRECTFBVIDEOPROVIDER_H__ +#define __IDIRECTFBVIDEOPROVIDER_H__ + +#include <core/coretypes.h> + +/* + * probing context + */ +typedef struct { + unsigned char header[64]; + + /* Only set if databuffer is created from file. */ + const char *filename; + + /* Usefull if provider needs more data for probing. */ + IDirectFBDataBuffer *buffer; +} IDirectFBVideoProvider_ProbeContext; + + +DFBResult +IDirectFBVideoProvider_CreateFromBuffer( IDirectFBDataBuffer *buffer, + CoreDFB *core, + IDirectFBVideoProvider **interface ); + +#endif + |