removed redundant includes
[libav.git] / libavcodec / ppc / mpegvideo_ppc.c
1 /*
2 * Copyright (c) 2002 Dieter Shirley
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19 #include "../dsputil.h"
20 #include "../mpegvideo.h"
21 #include <time.h>
22
23 #ifdef HAVE_ALTIVEC
24 #include "dsputil_altivec.h"
25 #endif
26
27 extern int dct_quantize_altivec(MpegEncContext *s,
28 DCTELEM *block, int n,
29 int qscale, int *overflow);
30
31 extern void idct_put_altivec(UINT8 *dest, int line_size, INT16 *block);
32 extern void idct_add_altivec(UINT8 *dest, int line_size, INT16 *block);
33
34
35 void MPV_common_init_ppc(MpegEncContext *s)
36 {
37 #if HAVE_ALTIVEC
38 if (has_altivec())
39 {
40 if ((s->avctx->idct_algo == FF_IDCT_AUTO) ||
41 (s->avctx->idct_algo == FF_IDCT_ALTIVEC))
42 {
43 s->idct_put = idct_put_altivec;
44 s->idct_add = idct_add_altivec;
45 s->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
46 }
47
48 // Test to make sure that the dct required alignments are met.
49 if ((((long)(s->q_intra_matrix) & 0x0f) != 0) ||
50 (((long)(s->q_inter_matrix) & 0x0f) != 0))
51 {
52 fprintf(stderr, "Internal Error: q-matrix blocks must be 16-byte aligned "
53 "to use Altivec DCT. Reverting to non-altivec version.\n");
54 return;
55 }
56
57 if (((long)(s->intra_scantable.inverse) & 0x0f) != 0)
58 {
59 fprintf(stderr, "Internal Error: scan table blocks must be 16-byte aligned "
60 "to use Altivec DCT. Reverting to non-altivec version.\n");
61 return;
62 }
63
64
65 if ((s->avctx->dct_algo == FF_DCT_AUTO) ||
66 (s->avctx->dct_algo == FF_DCT_ALTIVEC))
67 {
68 s->dct_quantize = dct_quantize_altivec;
69 }
70 } else
71 #endif
72 {
73 /* Non-AltiVec PPC optimisations here */
74 }
75 }
76