mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.8 KiB
83 lines
2.8 KiB
/* |
|
* Copyright (c) 2002 Dieter Shirley |
|
* |
|
* 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 "../dsputil.h" |
|
#include "../mpegvideo.h" |
|
#include <time.h> |
|
|
|
#ifdef HAVE_ALTIVEC |
|
#include "dsputil_altivec.h" |
|
#endif |
|
|
|
extern int dct_quantize_altivec(MpegEncContext *s, |
|
DCTELEM *block, int n, |
|
int qscale, int *overflow); |
|
extern void dct_unquantize_h263_altivec(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale); |
|
|
|
extern void idct_put_altivec(uint8_t *dest, int line_size, int16_t *block); |
|
extern void idct_add_altivec(uint8_t *dest, int line_size, int16_t *block); |
|
|
|
|
|
void MPV_common_init_ppc(MpegEncContext *s) |
|
{ |
|
#ifdef HAVE_ALTIVEC |
|
if (has_altivec()) |
|
{ |
|
if ((s->avctx->idct_algo == FF_IDCT_AUTO) || |
|
(s->avctx->idct_algo == FF_IDCT_ALTIVEC)) |
|
{ |
|
s->dsp.idct_put = idct_put_altivec; |
|
s->dsp.idct_add = idct_add_altivec; |
|
#ifndef ALTIVEC_USE_REFERENCE_C_CODE |
|
s->dsp.idct_permutation_type = FF_TRANSPOSE_IDCT_PERM; |
|
#else /* ALTIVEC_USE_REFERENCE_C_CODE */ |
|
s->dsp.idct_permutation_type = FF_NO_IDCT_PERM; |
|
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */ |
|
} |
|
|
|
// Test to make sure that the dct required alignments are met. |
|
if ((((long)(s->q_intra_matrix) & 0x0f) != 0) || |
|
(((long)(s->q_inter_matrix) & 0x0f) != 0)) |
|
{ |
|
fprintf(stderr, "Internal Error: q-matrix blocks must be 16-byte aligned " |
|
"to use Altivec DCT. Reverting to non-altivec version.\n"); |
|
return; |
|
} |
|
|
|
if (((long)(s->intra_scantable.inverse) & 0x0f) != 0) |
|
{ |
|
fprintf(stderr, "Internal Error: scan table blocks must be 16-byte aligned " |
|
"to use Altivec DCT. Reverting to non-altivec version.\n"); |
|
return; |
|
} |
|
|
|
|
|
if ((s->avctx->dct_algo == FF_DCT_AUTO) || |
|
(s->avctx->dct_algo == FF_DCT_ALTIVEC)) |
|
{ |
|
s->dct_quantize = dct_quantize_altivec; |
|
s->dct_unquantize_h263 = dct_unquantize_h263_altivec; |
|
} |
|
} else |
|
#endif |
|
{ |
|
/* Non-AltiVec PPC optimisations here */ |
|
} |
|
} |
|
|
|
|