FFmpeg
idctdsp_init_mips.c
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1 /*
2  * Copyright (c) 2015 Manojkumar Bhosale (Manojkumar.Bhosale@imgtec.com)
3  * Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "idctdsp_mips.h"
23 #include "xvididct_mips.h"
24 
25 #if HAVE_MSA
26 static av_cold void idctdsp_init_msa(IDCTDSPContext *c, AVCodecContext *avctx,
27  unsigned high_bit_depth)
28 {
29  if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
30  (avctx->bits_per_raw_sample != 10) &&
31  (avctx->bits_per_raw_sample != 12) &&
32  (avctx->idct_algo == FF_IDCT_AUTO)) {
37  }
38 
42 }
43 #endif // #if HAVE_MSA
44 
45 #if HAVE_MMI
46 static av_cold void idctdsp_init_mmi(IDCTDSPContext *c, AVCodecContext *avctx,
47  unsigned high_bit_depth)
48 {
49  if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
50  (avctx->bits_per_raw_sample != 10) &&
51  (avctx->bits_per_raw_sample != 12) &&
52  ((avctx->idct_algo == FF_IDCT_AUTO) || (avctx->idct_algo == FF_IDCT_SIMPLE))) {
57  }
58 
62 }
63 #endif /* HAVE_MMI */
64 
66  unsigned high_bit_depth)
67 {
68 #if HAVE_MMI
69  idctdsp_init_mmi(c, avctx, high_bit_depth);
70 #endif /* HAVE_MMI */
71 #if HAVE_MSA
72  idctdsp_init_msa(c, avctx, high_bit_depth);
73 #endif // #if HAVE_MSA
74 }
void ff_add_pixels_clamped_msa(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_msa.c:141
#define FF_IDCT_SIMPLE
Definition: avcodec.h:2774
void(* put_pixels_clamped)(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp.h:55
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:2799
void ff_add_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:150
#define av_cold
Definition: attributes.h:82
void ff_simple_idct_msa(int16_t *block)
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:2807
#define FF_IDCT_AUTO
Definition: avcodec.h:2772
void(* put_signed_pixels_clamped)(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp.h:58
void ff_put_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:28
int idct_algo
IDCT algorithm, see FF_IDCT_* below.
Definition: avcodec.h:2771
void(* idct_add)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:79
void ff_simple_idct_8_mmi(int16_t *block)
void(* idct_put)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
block -> idct -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:72
void ff_simple_idct_put_msa(uint8_t *dest, ptrdiff_t stride_dst, int16_t *block)
void ff_simple_idct_add_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
main external API structure.
Definition: avcodec.h:1568
void ff_put_signed_pixels_clamped_mmi(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_mmi.c:85
void ff_put_signed_pixels_clamped_msa(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_msa.c:134
void ff_put_pixels_clamped_msa(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp_msa.c:127
void ff_simple_idct_put_8_mmi(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct_add_msa(uint8_t *dest, ptrdiff_t stride_dst, int16_t *block)
av_cold void ff_idctdsp_init_mips(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
void(* idct)(int16_t *block)
Definition: idctdsp.h:65
enum idct_permutation_type perm_type
Definition: idctdsp.h:97
void(* add_pixels_clamped)(const int16_t *block, uint8_t *av_restrict pixels, ptrdiff_t line_size)
Definition: idctdsp.h:61