FFmpeg
rv40dsp_init.c
Go to the documentation of this file.
1 /*
2  * RV40 decoder motion compensation functions x86-optimised
3  * Copyright (c) 2008 Konstantin Shishkov
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 /**
23  * @file
24  * RV40 decoder motion compensation functions x86-optimised
25  * 2,0 and 0,2 have h264 equivalents.
26  * 3,3 is bugged in the rv40 format and maps to _xy2 version
27  */
28 
29 #include "libavcodec/rv34dsp.h"
30 #include "libavutil/attributes.h"
31 #include "libavutil/mem_internal.h"
32 #include "libavutil/x86/cpu.h"
33 #include "hpeldsp.h"
34 
35 #define DEFINE_FN(op, size, insn) \
36 static void op##_rv40_qpel##size##_mc33_##insn(uint8_t *dst, const uint8_t *src, \
37  ptrdiff_t stride) \
38 { \
39  ff_##op##_pixels##size##_xy2_##insn(dst, src, stride, size); \
40 }
41 
42 #if HAVE_X86ASM
43 void ff_put_rv40_chroma_mc8_mmx (uint8_t *dst, const uint8_t *src,
44  ptrdiff_t stride, int h, int x, int y);
45 void ff_avg_rv40_chroma_mc8_mmxext(uint8_t *dst, const uint8_t *src,
46  ptrdiff_t stride, int h, int x, int y);
47 
48 void ff_put_rv40_chroma_mc4_mmx (uint8_t *dst, const uint8_t *src,
49  ptrdiff_t stride, int h, int x, int y);
50 void ff_avg_rv40_chroma_mc4_mmxext(uint8_t *dst, const uint8_t *src,
51  ptrdiff_t stride, int h, int x, int y);
52 
53 #define DECLARE_WEIGHT(opt) \
54 void ff_rv40_weight_func_rnd_16_##opt(uint8_t *dst, uint8_t *src1, uint8_t *src2, \
55  int w1, int w2, ptrdiff_t stride); \
56 void ff_rv40_weight_func_rnd_8_##opt (uint8_t *dst, uint8_t *src1, uint8_t *src2, \
57  int w1, int w2, ptrdiff_t stride); \
58 void ff_rv40_weight_func_nornd_16_##opt(uint8_t *dst, uint8_t *src1, uint8_t *src2, \
59  int w1, int w2, ptrdiff_t stride); \
60 void ff_rv40_weight_func_nornd_8_##opt (uint8_t *dst, uint8_t *src1, uint8_t *src2, \
61  int w1, int w2, ptrdiff_t stride);
62 DECLARE_WEIGHT(sse2)
63 DECLARE_WEIGHT(ssse3)
64 
65 /** @{ */
66 /**
67  * Define one qpel function.
68  * LOOPSIZE must be already set to the number of pixels processed per
69  * iteration in the inner loop of the called functions.
70  * COFF(x) must be already defined so as to provide the offset into any
71  * array of coeffs used by the called function for the qpel position x.
72  */
73 #define QPEL_FUNC_DECL(OP, SIZE, PH, PV, OPT) \
74 static void OP ## rv40_qpel ##SIZE ##_mc ##PH ##PV ##OPT(uint8_t *dst, \
75  const uint8_t *src, \
76  ptrdiff_t stride) \
77 { \
78  int i; \
79  if (PH && PV) { \
80  LOCAL_ALIGNED(16, uint8_t, tmp, [SIZE * (SIZE + 5)]); \
81  uint8_t *tmpptr = tmp + SIZE * 2; \
82  src -= stride * 2; \
83  \
84  for (i = 0; i < SIZE; i += LOOPSIZE) \
85  ff_put_rv40_qpel_h ##OPT(tmp + i, SIZE, src + i, stride, \
86  SIZE + 5, HCOFF(PH)); \
87  for (i = 0; i < SIZE; i += LOOPSIZE) \
88  ff_ ##OP ##rv40_qpel_v ##OPT(dst + i, stride, tmpptr + i, \
89  SIZE, SIZE, VCOFF(PV)); \
90  } else if (PV) { \
91  for (i = 0; i < SIZE; i += LOOPSIZE) \
92  ff_ ##OP ##rv40_qpel_v ## OPT(dst + i, stride, src + i, \
93  stride, SIZE, VCOFF(PV)); \
94  } else { \
95  for (i = 0; i < SIZE; i += LOOPSIZE) \
96  ff_ ##OP ##rv40_qpel_h ## OPT(dst + i, stride, src + i, \
97  stride, SIZE, HCOFF(PH)); \
98  } \
99 }
100 
101 /** Declare functions for sizes 8 and 16 and given operations
102  * and qpel position. */
103 #define QPEL_FUNCS_DECL(OP, PH, PV, OPT) \
104  QPEL_FUNC_DECL(OP, 8, PH, PV, OPT) \
105  QPEL_FUNC_DECL(OP, 16, PH, PV, OPT)
106 
107 /** Declare all functions for all sizes and qpel positions */
108 #define QPEL_MC_DECL(OP, OPT) \
109 void ff_ ##OP ##rv40_qpel_h ##OPT(uint8_t *dst, ptrdiff_t dstStride, \
110  const uint8_t *src, \
111  ptrdiff_t srcStride, \
112  int len, int m); \
113 void ff_ ##OP ##rv40_qpel_v ##OPT(uint8_t *dst, ptrdiff_t dstStride, \
114  const uint8_t *src, \
115  ptrdiff_t srcStride, \
116  int len, int m); \
117 QPEL_FUNCS_DECL(OP, 0, 1, OPT) \
118 QPEL_FUNCS_DECL(OP, 0, 3, OPT) \
119 QPEL_FUNCS_DECL(OP, 1, 0, OPT) \
120 QPEL_FUNCS_DECL(OP, 1, 1, OPT) \
121 QPEL_FUNCS_DECL(OP, 1, 2, OPT) \
122 QPEL_FUNCS_DECL(OP, 1, 3, OPT) \
123 QPEL_FUNCS_DECL(OP, 2, 1, OPT) \
124 QPEL_FUNCS_DECL(OP, 2, 2, OPT) \
125 QPEL_FUNCS_DECL(OP, 2, 3, OPT) \
126 QPEL_FUNCS_DECL(OP, 3, 0, OPT) \
127 QPEL_FUNCS_DECL(OP, 3, 1, OPT) \
128 QPEL_FUNCS_DECL(OP, 3, 2, OPT)
129 /** @} */
130 
131 #define LOOPSIZE 8
132 #define HCOFF(x) (32 * ((x) - 1))
133 #define VCOFF(x) (32 * ((x) - 1))
134 QPEL_MC_DECL(put_, _ssse3)
135 QPEL_MC_DECL(avg_, _ssse3)
136 
137 #undef LOOPSIZE
138 #undef HCOFF
139 #undef VCOFF
140 #define LOOPSIZE 8
141 #define HCOFF(x) (64 * ((x) - 1))
142 #define VCOFF(x) (64 * ((x) - 1))
143 QPEL_MC_DECL(put_, _sse2)
144 QPEL_MC_DECL(avg_, _sse2)
145 
146 /** @{ */
147 /** Set one function */
148 #define QPEL_FUNC_SET(OP, SIZE, PH, PV, OPT) \
149  c-> OP ## pixels_tab[2 - SIZE / 8][4 * PV + PH] = OP ## rv40_qpel ##SIZE ## _mc ##PH ##PV ##OPT;
150 
151 /** Set functions put and avg for sizes 8 and 16 and a given qpel position */
152 #define QPEL_FUNCS_SET(OP, PH, PV, OPT) \
153  QPEL_FUNC_SET(OP, 8, PH, PV, OPT) \
154  QPEL_FUNC_SET(OP, 16, PH, PV, OPT)
155 
156 /** Set all functions for all sizes and qpel positions */
157 #define QPEL_MC_SET(OP, OPT) \
158 QPEL_FUNCS_SET (OP, 0, 1, OPT) \
159 QPEL_FUNCS_SET (OP, 0, 3, OPT) \
160 QPEL_FUNCS_SET (OP, 1, 0, OPT) \
161 QPEL_FUNCS_SET (OP, 1, 1, OPT) \
162 QPEL_FUNCS_SET (OP, 1, 2, OPT) \
163 QPEL_FUNCS_SET (OP, 1, 3, OPT) \
164 QPEL_FUNCS_SET (OP, 2, 1, OPT) \
165 QPEL_FUNCS_SET (OP, 2, 2, OPT) \
166 QPEL_FUNCS_SET (OP, 2, 3, OPT) \
167 QPEL_FUNCS_SET (OP, 3, 0, OPT) \
168 QPEL_FUNCS_SET (OP, 3, 1, OPT) \
169 QPEL_FUNCS_SET (OP, 3, 2, OPT)
170 /** @} */
171 
172 DEFINE_FN(put, 8, ssse3)
173 
174 DEFINE_FN(put, 16, sse2)
175 DEFINE_FN(put, 16, ssse3)
176 
177 DEFINE_FN(avg, 8, mmxext)
178 DEFINE_FN(avg, 8, ssse3)
179 
180 DEFINE_FN(avg, 16, sse2)
181 DEFINE_FN(avg, 16, ssse3)
182 #endif /* HAVE_X86ASM */
183 
184 #if HAVE_MMX_INLINE
185 DEFINE_FN(put, 8, mmx)
186 #endif
187 
188 av_cold void ff_rv40dsp_init_x86(RV34DSPContext *c)
189 {
190  av_unused int cpu_flags = av_get_cpu_flags();
191 
192 #if HAVE_MMX_INLINE
193  if (INLINE_MMX(cpu_flags)) {
194  c->put_pixels_tab[1][15] = put_rv40_qpel8_mc33_mmx;
195  }
196 #endif /* HAVE_MMX_INLINE */
197 
198 #if HAVE_X86ASM
199  if (EXTERNAL_MMX(cpu_flags)) {
200  c->put_chroma_pixels_tab[0] = ff_put_rv40_chroma_mc8_mmx;
201  c->put_chroma_pixels_tab[1] = ff_put_rv40_chroma_mc4_mmx;
202  }
203  if (EXTERNAL_MMXEXT(cpu_flags)) {
204  c->avg_pixels_tab[1][15] = avg_rv40_qpel8_mc33_mmxext;
205  c->avg_chroma_pixels_tab[0] = ff_avg_rv40_chroma_mc8_mmxext;
206  c->avg_chroma_pixels_tab[1] = ff_avg_rv40_chroma_mc4_mmxext;
207  }
208  if (EXTERNAL_SSE2(cpu_flags)) {
209  c->put_pixels_tab[0][15] = put_rv40_qpel16_mc33_sse2;
210  c->avg_pixels_tab[0][15] = avg_rv40_qpel16_mc33_sse2;
211  c->rv40_weight_pixels_tab[0][0] = ff_rv40_weight_func_rnd_16_sse2;
212  c->rv40_weight_pixels_tab[0][1] = ff_rv40_weight_func_rnd_8_sse2;
213  c->rv40_weight_pixels_tab[1][0] = ff_rv40_weight_func_nornd_16_sse2;
214  c->rv40_weight_pixels_tab[1][1] = ff_rv40_weight_func_nornd_8_sse2;
215  QPEL_MC_SET(put_, _sse2)
216  QPEL_MC_SET(avg_, _sse2)
217  }
218  if (EXTERNAL_SSSE3(cpu_flags)) {
219  c->put_pixels_tab[0][15] = put_rv40_qpel16_mc33_ssse3;
220  c->put_pixels_tab[1][15] = put_rv40_qpel8_mc33_ssse3;
221  c->avg_pixels_tab[0][15] = avg_rv40_qpel16_mc33_ssse3;
222  c->avg_pixels_tab[1][15] = avg_rv40_qpel8_mc33_ssse3;
223  c->rv40_weight_pixels_tab[0][0] = ff_rv40_weight_func_rnd_16_ssse3;
224  c->rv40_weight_pixels_tab[0][1] = ff_rv40_weight_func_rnd_8_ssse3;
225  c->rv40_weight_pixels_tab[1][0] = ff_rv40_weight_func_nornd_16_ssse3;
226  c->rv40_weight_pixels_tab[1][1] = ff_rv40_weight_func_nornd_8_ssse3;
227  QPEL_MC_SET(put_, _ssse3)
228  QPEL_MC_SET(avg_, _ssse3)
229  }
230 #endif /* HAVE_X86ASM */
231 }
INLINE_MMX
#define INLINE_MMX(flags)
Definition: cpu.h:87
cpu.h
mem_internal.h
av_unused
#define av_unused
Definition: attributes.h:131
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:101
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:52
av_cold
#define av_cold
Definition: attributes.h:90
c
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
RV34DSPContext
Definition: rv34dsp.h:57
DEFINE_FN
#define DEFINE_FN(op, size, insn)
Definition: rv40dsp_init.c:35
rv34dsp.h
avg
#define avg(a, b, c, d)
Definition: colorspacedsp_template.c:28
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
hpeldsp.h
stride
#define stride
Definition: h264pred_template.c:537
ff_rv40dsp_init_x86
av_cold void ff_rv40dsp_init_x86(RV34DSPContext *c)
Definition: rv40dsp_init.c:188
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
h
h
Definition: vp9dsp_template.c:2038
EXTERNAL_SSSE3
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:65
EXTERNAL_MMX
#define EXTERNAL_MMX(flags)
Definition: cpu.h:56
EXTERNAL_MMXEXT
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:57
Generated on Mon Sep 26 2022 19:21:22 for FFmpeg by   doxygen 1.8.17