* idctmmxext.c : MMX EXT IDCT module
*****************************************************************************
* Copyright (C) 1999, 2000 VideoLAN
- * $Id: idctmmxext.c,v 1.3 2001/01/16 16:09:52 sam Exp $
+ * $Id: idctmmxext.c,v 1.9 2001/05/30 17:03:12 sam Exp $
*
- * Authors:
+ * Authors: Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ * Michel Lespinasse <walken@zoy.org>
+ * Peter Gubanov <peter@elecard.net.ru>
+ * (from the LiViD project)
+ * Christophe Massiot <massiot@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include "modules.h"
#include "modules_inner.h"
-#include "idct.h"
+#include "vdec_block.h"
+#include "vdec_idct.h"
+
+#include "attributes.h"
+#include "mmx.h"
/*****************************************************************************
* Local prototypes.
*****************************************************************************/
static void idct_getfunctions( function_list_t * p_function_list );
-
static int idct_Probe ( probedata_t *p_data );
-
- void vdec_InitIDCT ( vdec_thread_t * p_vdec);
- void vdec_SparseIDCT ( vdec_thread_t * p_vdec, dctelem_t * p_block,
- int i_sparse_pos);
- void vdec_IDCT ( vdec_thread_t * p_vdec, dctelem_t * p_block,
- int i_idontcare );
-
+static void vdec_NormScan ( u8 ppi_scan[2][64] );
/*****************************************************************************
* Build configuration tree.
MODULE_CONFIG_START
ADD_WINDOW( "Configuration for MMX EXT IDCT module" )
ADD_COMMENT( "Ha, ha -- nothing to configure yet" )
-MODULE_CONFIG_END
-
-/*****************************************************************************
- * InitModule: get the module structure and configuration.
- *****************************************************************************
- * We have to fill psz_name, psz_longname and psz_version. These variables
- * will be strdup()ed later by the main application because the module can
- * be unloaded later to save memory, and we want to be able to access this
- * data even after the module has been unloaded.
- *****************************************************************************/
-int InitModule( module_t * p_module )
-{
- p_module->psz_name = MODULE_STRING;
- p_module->psz_longname = "MMX EXT IDCT module";
- p_module->psz_version = VERSION;
+MODULE_CONFIG_STOP
+MODULE_INIT_START
p_module->i_capabilities = MODULE_CAPABILITY_NULL
| MODULE_CAPABILITY_IDCT;
+ p_module->psz_longname = "MMX EXT IDCT module";
+MODULE_INIT_STOP
+
+MODULE_ACTIVATE_START
+ idct_getfunctions( &p_module->p_functions->idct );
+MODULE_ACTIVATE_STOP
+
+MODULE_DEACTIVATE_START
+MODULE_DEACTIVATE_STOP
- return( 0 );
+/* Following functions are local */
+
+/*****************************************************************************
+ * Functions exported as capabilities.
+ *****************************************************************************/
+static void idct_getfunctions( function_list_t * p_function_list )
+{
+ p_function_list->pf_probe = idct_Probe;
+#define F p_function_list->functions.idct
+ F.pf_idct_init = _M( vdec_InitIDCT );
+ F.pf_sparse_idct = _M( vdec_SparseIDCT );
+ F.pf_idct = _M( vdec_IDCT );
+ F.pf_norm_scan = vdec_NormScan;
+ F.pf_decode_init = _M( vdec_InitDecode );
+ F.pf_decode_mb_c = _M( vdec_DecodeMacroblockC );
+ F.pf_decode_mb_bw = _M( vdec_DecodeMacroblockBW );
+#undef F
}
/*****************************************************************************
- * ActivateModule: set the module to an usable state.
- *****************************************************************************
- * This function fills the capability functions and the configuration
- * structure. Once ActivateModule() has been called, the i_usage can
- * be set to 0 and calls to NeedModule() be made to increment it. To unload
- * the module, one has to wait until i_usage == 0 and call DeactivateModule().
+ * idct_Probe: return a preference score
*****************************************************************************/
-int ActivateModule( module_t * p_module )
+static int idct_Probe( probedata_t *p_data )
{
- p_module->p_functions = malloc( sizeof( module_functions_t ) );
- if( p_module->p_functions == NULL )
+ if( !TestCPU( CPU_CAPABILITY_MMXEXT ) )
{
- return( -1 );
+ return( 0 );
}
- idct_getfunctions( &p_module->p_functions->idct );
+ if( TestMethod( IDCT_METHOD_VAR, "idctmmxext" ) )
+ {
+ return( 999 );
+ }
- p_module->p_config = p_config;
+ return( 200 );
- return( 0 );
}
/*****************************************************************************
- * DeactivateModule: make sure the module can be unloaded.
- *****************************************************************************
- * This function must only be called when i_usage == 0. If it successfully
- * returns, i_usage can be set to -1 and the module unloaded. Be careful to
- * lock usage_lock during the whole process.
+ * vdec_NormScan : This IDCT uses reordered coeffs, so we patch the scan table
*****************************************************************************/
-int DeactivateModule( module_t * p_module )
+static void vdec_NormScan( u8 ppi_scan[2][64] )
{
- free( p_module->p_functions );
+ int i, j;
- return( 0 );
-}
+ for( i = 0; i < 64; i++ )
+ {
+ j = ppi_scan[0][i];
+ ppi_scan[0][i] = (j & 0x38) | ((j & 6) >> 1) | ((j & 1) << 2);
-/* Following functions are local */
+ j = ppi_scan[1][i];
+ ppi_scan[1][i] = (j & 0x38) | ((j & 6) >> 1) | ((j & 1) << 2);
+ }
+}
/*****************************************************************************
- * Functions exported as capabilities.
+ * vdec_IDCT :
*****************************************************************************/
-static void idct_getfunctions( function_list_t * p_function_list )
+#define ROW_SHIFT 11
+#define COL_SHIFT 6
+
+#define round(bias) ((int)(((bias)+0.5) * (1<<ROW_SHIFT)))
+#define rounder(bias) {round (bias), round (bias)}
+
+#define table(c1,c2,c3,c4,c5,c6,c7) { c4, c2, -c4, -c2, \
+ c4, c6, c4, c6, \
+ c1, c3, -c1, -c5, \
+ c5, c7, c3, -c7, \
+ c4, -c6, c4, -c6, \
+ -c4, c2, c4, -c2, \
+ c5, -c1, c3, -c1, \
+ c7, c3, c7, -c5 }
+
+static __inline__ void RowHead( dctelem_t * row, int offset, dctelem_t * table )
{
- p_function_list->pf_probe = idct_Probe;
- p_function_list->functions.idct.pf_init = vdec_InitIDCT;
- p_function_list->functions.idct.pf_sparse_idct = vdec_SparseIDCT;
- p_function_list->functions.idct.pf_idct = vdec_IDCT;
+ movq_m2r (*(row+offset), mm2); // mm2 = x6 x4 x2 x0
+
+ movq_m2r (*(row+offset+4), mm5); // mm5 = x7 x5 x3 x1
+ movq_r2r (mm2, mm0); // mm0 = x6 x4 x2 x0
+
+ movq_m2r (*table, mm3); // mm3 = -C2 -C4 C2 C4
+ movq_r2r (mm5, mm6); // mm6 = x7 x5 x3 x1
+
+ movq_m2r (*(table+4), mm4); // mm4 = C6 C4 C6 C4
+ pmaddwd_r2r (mm0, mm3); // mm3 = -C4*x4-C2*x6 C4*x0+C2*x2
+
+ pshufw_r2r (mm2, mm2, 0x4e); // mm2 = x2 x0 x6 x4
}
-/*****************************************************************************
- * idct_Probe: return a preference score
- *****************************************************************************/
-static int idct_Probe( probedata_t *p_data )
+static __inline__ void Row( dctelem_t * table, s32 * rounder )
{
- if( 0/*TestCPU( CPU_CAPABILITY_MMXEXT )*/ )
- {
- if( TestMethod( IDCT_METHOD_VAR, "idctmmxext" ) )
- {
- return( 999 );
- }
- else
- {
- return( 200 );
- }
- }
- else
- {
- return( 0 );
- }
+ movq_m2r (*(table+8), mm1); // mm1 = -C5 -C1 C3 C1
+ pmaddwd_r2r (mm2, mm4); // mm4 = C4*x0+C6*x2 C4*x4+C6*x6
+
+ pmaddwd_m2r (*(table+16), mm0); // mm0 = C4*x4-C6*x6 C4*x0-C6*x2
+ pshufw_r2r (mm6, mm6, 0x4e); // mm6 = x3 x1 x7 x5
+
+ movq_m2r (*(table+12), mm7); // mm7 = -C7 C3 C7 C5
+ pmaddwd_r2r (mm5, mm1); // mm1 = -C1*x5-C5*x7 C1*x1+C3*x3
+
+ paddd_m2r (*rounder, mm3); // mm3 += rounder
+ pmaddwd_r2r (mm6, mm7); // mm7 = C3*x1-C7*x3 C5*x5+C7*x7
+
+ pmaddwd_m2r (*(table+20), mm2); // mm2 = C4*x0-C2*x2 -C4*x4+C2*x6
+ paddd_r2r (mm4, mm3); // mm3 = a1 a0 + rounder
+
+ pmaddwd_m2r (*(table+24), mm5); // mm5 = C3*x5-C1*x7 C5*x1-C1*x3
+ movq_r2r (mm3, mm4); // mm4 = a1 a0 + rounder
+
+ pmaddwd_m2r (*(table+28), mm6); // mm6 = C7*x1-C5*x3 C7*x5+C3*x7
+ paddd_r2r (mm7, mm1); // mm1 = b1 b0
+
+ paddd_m2r (*rounder, mm0); // mm0 += rounder
+ psubd_r2r (mm1, mm3); // mm3 = a1-b1 a0-b0 + rounder
+
+ psrad_i2r (ROW_SHIFT, mm3); // mm3 = y6 y7
+ paddd_r2r (mm4, mm1); // mm1 = a1+b1 a0+b0 + rounder
+
+ paddd_r2r (mm2, mm0); // mm0 = a3 a2 + rounder
+ psrad_i2r (ROW_SHIFT, mm1); // mm1 = y1 y0
+
+ paddd_r2r (mm6, mm5); // mm5 = b3 b2
+ movq_r2r (mm0, mm4); // mm4 = a3 a2 + rounder
+
+ paddd_r2r (mm5, mm0); // mm0 = a3+b3 a2+b2 + rounder
+ psubd_r2r (mm5, mm4); // mm4 = a3-b3 a2-b2 + rounder
+}
+
+static __inline__ void RowTail( dctelem_t * row, int store )
+{
+ psrad_i2r (ROW_SHIFT, mm0); // mm0 = y3 y2
+
+ psrad_i2r (ROW_SHIFT, mm4); // mm4 = y4 y5
+
+ packssdw_r2r (mm0, mm1); // mm1 = y3 y2 y1 y0
+
+ packssdw_r2r (mm3, mm4); // mm4 = y6 y7 y4 y5
+
+ movq_r2m (mm1, *(row+store)); // save y3 y2 y1 y0
+ pshufw_r2r (mm4, mm4, 0xb1); // mm4 = y7 y6 y5 y4
+
+ // slot
+ movq_r2m (mm4, *(row+store+4)); // save y7 y6 y5 y4
+}
+
+static __inline__ void RowMid( dctelem_t * row, int store,
+ int offset, dctelem_t * table)
+{
+ movq_m2r (*(row+offset), mm2); // mm2 = x6 x4 x2 x0
+ psrad_i2r (ROW_SHIFT, mm0); // mm0 = y3 y2
+
+ movq_m2r (*(row+offset+4), mm5); // mm5 = x7 x5 x3 x1
+ psrad_i2r (ROW_SHIFT, mm4); // mm4 = y4 y5
+
+ packssdw_r2r (mm0, mm1); // mm1 = y3 y2 y1 y0
+ movq_r2r (mm5, mm6); // mm6 = x7 x5 x3 x1
+
+ packssdw_r2r (mm3, mm4); // mm4 = y6 y7 y4 y5
+ movq_r2r (mm2, mm0); // mm0 = x6 x4 x2 x0
+
+ movq_r2m (mm1, *(row+store)); // save y3 y2 y1 y0
+ pshufw_r2r (mm4, mm4, 0xb1); // mm4 = y7 y6 y5 y4
+
+ movq_m2r (*table, mm3); // mm3 = -C2 -C4 C2 C4
+ movq_r2m (mm4, *(row+store+4)); // save y7 y6 y5 y4
+
+ pmaddwd_r2r (mm0, mm3); // mm3 = -C4*x4-C2*x6 C4*x0+C2*x2
+
+ movq_m2r (*(table+4), mm4); // mm4 = C6 C4 C6 C4
+ pshufw_r2r (mm2, mm2, 0x4e); // mm2 = x2 x0 x6 x4
+}
+
+static __inline__ void Col( dctelem_t * col, int offset )
+{
+#define T1 13036
+#define T2 27146
+#define T3 43790
+#define C4 23170
+
+ static short _T1[] ATTR_ALIGN(8) = {T1,T1,T1,T1};
+ static short _T2[] ATTR_ALIGN(8) = {T2,T2,T2,T2};
+ static short _T3[] ATTR_ALIGN(8) = {T3,T3,T3,T3};
+ static short _C4[] ATTR_ALIGN(8) = {C4,C4,C4,C4};
+ static mmx_t scratch0, scratch1;
+
+ /* column code adapted from peter gubanov */
+ /* http://www.elecard.com/peter/idct.shtml */
+
+ movq_m2r (*_T1, mm0); // mm0 = T1
+
+ movq_m2r (*(col+offset+1*8), mm1); // mm1 = x1
+ movq_r2r (mm0, mm2); // mm2 = T1
+
+ movq_m2r (*(col+offset+7*8), mm4); // mm4 = x7
+ pmulhw_r2r (mm1, mm0); // mm0 = T1*x1
+
+ movq_m2r (*_T3, mm5); // mm5 = T3
+ pmulhw_r2r (mm4, mm2); // mm2 = T1*x7
+
+ movq_m2r (*(col+offset+5*8), mm6); // mm6 = x5
+ movq_r2r (mm5, mm7); // mm7 = T3-1
+
+ movq_m2r (*(col+offset+3*8), mm3); // mm3 = x3
+ psubsw_r2r (mm4, mm0); // mm0 = v17
+
+ movq_m2r (*_T2, mm4); // mm4 = T2
+ pmulhw_r2r (mm3, mm5); // mm5 = (T3-1)*x3
+
+ paddsw_r2r (mm2, mm1); // mm1 = u17
+ pmulhw_r2r (mm6, mm7); // mm7 = (T3-1)*x5
+
+ //slot
+
+ movq_r2r (mm4, mm2); // mm2 = T2
+ paddsw_r2r (mm3, mm5); // mm5 = T3*x3
+
+ pmulhw_m2r (*(col+offset+2*8), mm4);// mm4 = T2*x2
+ paddsw_r2r (mm6, mm7); // mm7 = T3*x5
+
+ psubsw_r2r (mm6, mm5); // mm5 = v35
+ paddsw_r2r (mm3, mm7); // mm7 = u35
+
+ movq_m2r (*(col+offset+6*8), mm3); // mm3 = x6
+ movq_r2r (mm0, mm6); // mm6 = v17
+
+ pmulhw_r2r (mm3, mm2); // mm2 = T2*x6
+ psubsw_r2r (mm5, mm0); // mm0 = b3
+
+ psubsw_r2r (mm3, mm4); // mm4 = v26
+ paddsw_r2r (mm6, mm5); // mm5 = v12
+
+ movq_r2m (mm0, scratch0); // save b3
+ movq_r2r (mm1, mm6); // mm6 = u17
+
+ paddsw_m2r (*(col+offset+2*8), mm2);// mm2 = u26
+ paddsw_r2r (mm7, mm6); // mm6 = b0
+
+ psubsw_r2r (mm7, mm1); // mm1 = u12
+ movq_r2r (mm1, mm7); // mm7 = u12
+
+ movq_m2r (*(col+offset+0*8), mm3); // mm3 = x0
+ paddsw_r2r (mm5, mm1); // mm1 = u12+v12
+
+ movq_m2r (*_C4, mm0); // mm0 = C4/2
+ psubsw_r2r (mm5, mm7); // mm7 = u12-v12
+
+ movq_r2m (mm6, scratch1); // save b0
+ pmulhw_r2r (mm0, mm1); // mm1 = b1/2
+
+ movq_r2r (mm4, mm6); // mm6 = v26
+ pmulhw_r2r (mm0, mm7); // mm7 = b2/2
+
+ movq_m2r (*(col+offset+4*8), mm5); // mm5 = x4
+ movq_r2r (mm3, mm0); // mm0 = x0
+
+ psubsw_r2r (mm5, mm3); // mm3 = v04
+ paddsw_r2r (mm5, mm0); // mm0 = u04
+
+ paddsw_r2r (mm3, mm4); // mm4 = a1
+ movq_r2r (mm0, mm5); // mm5 = u04
+
+ psubsw_r2r (mm6, mm3); // mm3 = a2
+ paddsw_r2r (mm2, mm5); // mm5 = a0
+
+ paddsw_r2r (mm1, mm1); // mm1 = b1
+ psubsw_r2r (mm2, mm0); // mm0 = a3
+
+ paddsw_r2r (mm7, mm7); // mm7 = b2
+ movq_r2r (mm3, mm2); // mm2 = a2
+
+ movq_r2r (mm4, mm6); // mm6 = a1
+ paddsw_r2r (mm7, mm3); // mm3 = a2+b2
+
+ psraw_i2r (COL_SHIFT, mm3); // mm3 = y2
+ paddsw_r2r (mm1, mm4); // mm4 = a1+b1
+
+ psraw_i2r (COL_SHIFT, mm4); // mm4 = y1
+ psubsw_r2r (mm1, mm6); // mm6 = a1-b1
+
+ movq_m2r (scratch1, mm1); // mm1 = b0
+ psubsw_r2r (mm7, mm2); // mm2 = a2-b2
+
+ psraw_i2r (COL_SHIFT, mm6); // mm6 = y6
+ movq_r2r (mm5, mm7); // mm7 = a0
+
+ movq_r2m (mm4, *(col+offset+1*8)); // save y1
+ psraw_i2r (COL_SHIFT, mm2); // mm2 = y5
+
+ movq_r2m (mm3, *(col+offset+2*8)); // save y2
+ paddsw_r2r (mm1, mm5); // mm5 = a0+b0
+
+ movq_m2r (scratch0, mm4); // mm4 = b3
+ psubsw_r2r (mm1, mm7); // mm7 = a0-b0
+
+ psraw_i2r (COL_SHIFT, mm5); // mm5 = y0
+ movq_r2r (mm0, mm3); // mm3 = a3
+
+ movq_r2m (mm2, *(col+offset+5*8)); // save y5
+ psubsw_r2r (mm4, mm3); // mm3 = a3-b3
+
+ psraw_i2r (COL_SHIFT, mm7); // mm7 = y7
+ paddsw_r2r (mm0, mm4); // mm4 = a3+b3
+
+ movq_r2m (mm5, *(col+offset+0*8)); // save y0
+ psraw_i2r (COL_SHIFT, mm3); // mm3 = y4
+
+ movq_r2m (mm6, *(col+offset+6*8)); // save y6
+ psraw_i2r (COL_SHIFT, mm4); // mm4 = y3
+
+ movq_r2m (mm7, *(col+offset+7*8)); // save y7
+
+ movq_r2m (mm3, *(col+offset+4*8)); // save y4
+
+ movq_r2m (mm4, *(col+offset+3*8)); // save y3
+}
+
+
+static s32 rounder0[] ATTR_ALIGN(8) =
+ rounder ((1 << (COL_SHIFT - 1)) - 0.5);
+static s32 rounder4[] ATTR_ALIGN(8) = rounder (0);
+static s32 rounder1[] ATTR_ALIGN(8) =
+ rounder (1.25683487303); // C1*(C1/C4+C1+C7)/2
+static s32 rounder7[] ATTR_ALIGN(8) =
+ rounder (-0.25); // C1*(C7/C4+C7-C1)/2
+static s32 rounder2[] ATTR_ALIGN(8) =
+ rounder (0.60355339059); // C2 * (C6+C2)/2
+static s32 rounder6[] ATTR_ALIGN(8) =
+ rounder (-0.25); // C2 * (C6-C2)/2
+static s32 rounder3[] ATTR_ALIGN(8) =
+ rounder (0.087788325588); // C3*(-C3/C4+C3+C5)/2
+static s32 rounder5[] ATTR_ALIGN(8) =
+ rounder (-0.441341716183); // C3*(-C5/C4+C5-C3)/2
+
+void _M( vdec_IDCT )( vdec_thread_t * p_vdec, dctelem_t * p_block,
+ int i_idontcare )
+{
+ static dctelem_t table04[] ATTR_ALIGN(16) =
+ table (22725, 21407, 19266, 16384, 12873, 8867, 4520);
+ static dctelem_t table17[] ATTR_ALIGN(16) =
+ table (31521, 29692, 26722, 22725, 17855, 12299, 6270);
+ static dctelem_t table26[] ATTR_ALIGN(16) =
+ table (29692, 27969, 25172, 21407, 16819, 11585, 5906);
+ static dctelem_t table35[] ATTR_ALIGN(16) =
+ table (26722, 25172, 22654, 19266, 15137, 10426, 5315);
+
+ RowHead( p_block, 0*8, table04 );
+ Row( table04, rounder0 );
+ RowMid( p_block, 0*8, 4*8, table04 );
+ Row( table04, rounder4 );
+ RowMid( p_block, 4*8, 1*8, table17 );
+ Row( table17, rounder1 );
+ RowMid( p_block, 1*8, 7*8, table17 );
+ Row( table17, rounder7 );
+ RowMid( p_block, 7*8, 2*8, table26 );
+ Row( table26, rounder2 );
+ RowMid( p_block, 2*8, 6*8, table26 );
+ Row( table26, rounder6 );
+ RowMid( p_block, 6*8, 3*8, table35 );
+ Row( table35, rounder3 );
+ RowMid( p_block, 3*8, 5*8, table35 );
+ Row( table35, rounder5 );
+ RowTail( p_block, 5*8);
+
+ Col( p_block, 0 );
+ Col( p_block, 4 );
}
projects / vlc / blobdiff