1 /*****************************************************************************
2 * idctaltivec.c : Altivec IDCT module
3 *****************************************************************************
4 * Copyright (C) 1999, 2000 VideoLAN
5 * $Id: idctaltivec.c,v 1.11 2001/08/22 17:21:45 massiot Exp $
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 #define MODULE_NAME idctaltivec
25 #include "modules_inner.h"
27 /*****************************************************************************
29 *****************************************************************************/
38 #include "tests.h" /* TestCPU() */
40 #include "vdec_idct.h"
42 #include "idctaltivec.h"
45 #include "modules_export.h"
47 /*****************************************************************************
49 *****************************************************************************/
50 static void idct_getfunctions( function_list_t * p_function_list );
51 static int idct_Probe ( probedata_t *p_data );
52 static void vdec_NormScan ( u8 ppi_scan[2][64] );
54 /*****************************************************************************
55 * Build configuration tree.
56 *****************************************************************************/
58 ADD_WINDOW( "Configuration for Altivec IDCT module" )
59 ADD_COMMENT( "Ha, ha -- nothing to configure yet" )
63 p_module->i_capabilities = MODULE_CAPABILITY_NULL
64 | MODULE_CAPABILITY_IDCT;
65 p_module->psz_longname = "Altivec IDCT module";
69 idct_getfunctions( &p_module->p_functions->idct );
72 MODULE_DEACTIVATE_START
73 MODULE_DEACTIVATE_STOP
75 /* Following functions are local */
77 /*****************************************************************************
78 * Functions exported as capabilities.
79 *****************************************************************************/
80 static void idct_getfunctions( function_list_t * p_function_list )
82 p_function_list->pf_probe = idct_Probe;
83 #define F p_function_list->functions.idct
84 F.pf_idct_init = _M( vdec_InitIDCT );
85 F.pf_sparse_idct = _M( vdec_SparseIDCT );
86 F.pf_idct = _M( vdec_IDCT );
87 F.pf_norm_scan = vdec_NormScan;
88 F.pf_decode_init = _M( vdec_InitDecode );
89 F.pf_addblock = _M( vdec_AddBlock );
90 F.pf_copyblock = _M( vdec_CopyBlock );
94 /*****************************************************************************
95 * idct_Probe: return a preference score
96 *****************************************************************************/
97 static int idct_Probe( probedata_t *p_data )
99 if( !TestCPU( CPU_CAPABILITY_ALTIVEC ) )
104 if( TestMethod( IDCT_METHOD_VAR, "idctaltivec" )
105 || TestMethod( IDCT_METHOD_VAR, "altivec" ) )
110 /* The Altivec iDCT is deactivated until it really works */
111 return( 0 /* 200 */ );
114 /*****************************************************************************
115 * vdec_NormScan : Soon, transpose
116 *****************************************************************************/
117 static void vdec_NormScan( u8 ppi_scan[2][64] )
121 /*****************************************************************************
123 *****************************************************************************/
124 void _M( vdec_IDCT )( void * p_unused_data, dctelem_t * p_block,
127 IDCT( p_block, p_block );