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hpeldsp.c
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1 /*
2  * Half-pel DSP functions.
3  * Copyright (c) 2000, 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
7  *
8  * This file is part of FFmpeg.
9  *
10  * FFmpeg is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * FFmpeg is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with FFmpeg; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23  */
24 
25 /**
26  * @file
27  * Half-pel DSP functions.
28  */
29 
30 #include "libavutil/attributes.h"
31 #include "libavutil/intreadwrite.h"
32 #include "hpeldsp.h"
33 
34 #define BIT_DEPTH 8
35 #include "hpel_template.c"
36 #include "pel_template.c"
37 
38 #define PIXOP2(OPNAME, OP) \
39 static inline void OPNAME ## _no_rnd_pixels8_l2_8(uint8_t *dst, \
40  const uint8_t *src1, \
41  const uint8_t *src2, \
42  int dst_stride, \
43  int src_stride1, \
44  int src_stride2, \
45  int h) \
46 { \
47  int i; \
48  \
49  for (i = 0; i < h; i++) { \
50  uint32_t a, b; \
51  a = AV_RN32(&src1[i * src_stride1]); \
52  b = AV_RN32(&src2[i * src_stride2]); \
53  OP(*((uint32_t *) &dst[i * dst_stride]), \
54  no_rnd_avg32(a, b)); \
55  a = AV_RN32(&src1[i * src_stride1 + 4]); \
56  b = AV_RN32(&src2[i * src_stride2 + 4]); \
57  OP(*((uint32_t *) &dst[i * dst_stride + 4]), \
58  no_rnd_avg32(a, b)); \
59  } \
60 } \
61  \
62 static inline void OPNAME ## _no_rnd_pixels8_x2_8_c(uint8_t *block, \
63  const uint8_t *pixels, \
64  ptrdiff_t line_size, \
65  int h) \
66 { \
67  OPNAME ## _no_rnd_pixels8_l2_8(block, pixels, pixels + 1, \
68  line_size, line_size, line_size, h); \
69 } \
70  \
71 static inline void OPNAME ## _pixels8_x2_8_c(uint8_t *block, \
72  const uint8_t *pixels, \
73  ptrdiff_t line_size, \
74  int h) \
75 { \
76  OPNAME ## _pixels8_l2_8(block, pixels, pixels + 1, \
77  line_size, line_size, line_size, h); \
78 } \
79  \
80 static inline void OPNAME ## _no_rnd_pixels8_y2_8_c(uint8_t *block, \
81  const uint8_t *pixels, \
82  ptrdiff_t line_size, \
83  int h) \
84 { \
85  OPNAME ## _no_rnd_pixels8_l2_8(block, pixels, pixels + line_size, \
86  line_size, line_size, line_size, h); \
87 } \
88  \
89 static inline void OPNAME ## _pixels8_y2_8_c(uint8_t *block, \
90  const uint8_t *pixels, \
91  ptrdiff_t line_size, \
92  int h) \
93 { \
94  OPNAME ## _pixels8_l2_8(block, pixels, pixels + line_size, \
95  line_size, line_size, line_size, h); \
96 } \
97  \
98 static inline void OPNAME ## _pixels4_x2_8_c(uint8_t *block, \
99  const uint8_t *pixels, \
100  ptrdiff_t line_size, \
101  int h) \
102 { \
103  OPNAME ## _pixels4_l2_8(block, pixels, pixels + 1, \
104  line_size, line_size, line_size, h); \
105 } \
106  \
107 static inline void OPNAME ## _pixels4_y2_8_c(uint8_t *block, \
108  const uint8_t *pixels, \
109  ptrdiff_t line_size, \
110  int h) \
111 { \
112  OPNAME ## _pixels4_l2_8(block, pixels, pixels + line_size, \
113  line_size, line_size, line_size, h); \
114 } \
115  \
116 static inline void OPNAME ## _pixels2_x2_8_c(uint8_t *block, \
117  const uint8_t *pixels, \
118  ptrdiff_t line_size, \
119  int h) \
120 { \
121  OPNAME ## _pixels2_l2_8(block, pixels, pixels + 1, \
122  line_size, line_size, line_size, h); \
123 } \
124  \
125 static inline void OPNAME ## _pixels2_y2_8_c(uint8_t *block, \
126  const uint8_t *pixels, \
127  ptrdiff_t line_size, \
128  int h) \
129 { \
130  OPNAME ## _pixels2_l2_8(block, pixels, pixels + line_size, \
131  line_size, line_size, line_size, h); \
132 } \
133  \
134 static inline void OPNAME ## _pixels2_xy2_8_c(uint8_t *block, \
135  const uint8_t *pixels, \
136  ptrdiff_t line_size, \
137  int h) \
138 { \
139  int i, a1, b1; \
140  int a0 = pixels[0]; \
141  int b0 = pixels[1] + 2; \
142  \
143  a0 += b0; \
144  b0 += pixels[2]; \
145  pixels += line_size; \
146  for (i = 0; i < h; i += 2) { \
147  a1 = pixels[0]; \
148  b1 = pixels[1]; \
149  a1 += b1; \
150  b1 += pixels[2]; \
151  \
152  block[0] = (a1 + a0) >> 2; /* FIXME non put */ \
153  block[1] = (b1 + b0) >> 2; \
154  \
155  pixels += line_size; \
156  block += line_size; \
157  \
158  a0 = pixels[0]; \
159  b0 = pixels[1] + 2; \
160  a0 += b0; \
161  b0 += pixels[2]; \
162  \
163  block[0] = (a1 + a0) >> 2; \
164  block[1] = (b1 + b0) >> 2; \
165  pixels += line_size; \
166  block += line_size; \
167  } \
168 } \
169  \
170 static inline void OPNAME ## _pixels4_xy2_8_c(uint8_t *block, \
171  const uint8_t *pixels, \
172  ptrdiff_t line_size, \
173  int h) \
174 { \
175  /* FIXME HIGH BIT DEPTH */ \
176  int i; \
177  const uint32_t a = AV_RN32(pixels); \
178  const uint32_t b = AV_RN32(pixels + 1); \
179  uint32_t l0 = (a & 0x03030303UL) + \
180  (b & 0x03030303UL) + \
181  0x02020202UL; \
182  uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
183  ((b & 0xFCFCFCFCUL) >> 2); \
184  uint32_t l1, h1; \
185  \
186  pixels += line_size; \
187  for (i = 0; i < h; i += 2) { \
188  uint32_t a = AV_RN32(pixels); \
189  uint32_t b = AV_RN32(pixels + 1); \
190  l1 = (a & 0x03030303UL) + \
191  (b & 0x03030303UL); \
192  h1 = ((a & 0xFCFCFCFCUL) >> 2) + \
193  ((b & 0xFCFCFCFCUL) >> 2); \
194  OP(*((uint32_t *) block), h0 + h1 + \
195  (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
196  pixels += line_size; \
197  block += line_size; \
198  a = AV_RN32(pixels); \
199  b = AV_RN32(pixels + 1); \
200  l0 = (a & 0x03030303UL) + \
201  (b & 0x03030303UL) + \
202  0x02020202UL; \
203  h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
204  ((b & 0xFCFCFCFCUL) >> 2); \
205  OP(*((uint32_t *) block), h0 + h1 + \
206  (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
207  pixels += line_size; \
208  block += line_size; \
209  } \
210 } \
211  \
212 static inline void OPNAME ## _pixels8_xy2_8_c(uint8_t *block, \
213  const uint8_t *pixels, \
214  ptrdiff_t line_size, \
215  int h) \
216 { \
217  /* FIXME HIGH BIT DEPTH */ \
218  int j; \
219  \
220  for (j = 0; j < 2; j++) { \
221  int i; \
222  const uint32_t a = AV_RN32(pixels); \
223  const uint32_t b = AV_RN32(pixels + 1); \
224  uint32_t l0 = (a & 0x03030303UL) + \
225  (b & 0x03030303UL) + \
226  0x02020202UL; \
227  uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
228  ((b & 0xFCFCFCFCUL) >> 2); \
229  uint32_t l1, h1; \
230  \
231  pixels += line_size; \
232  for (i = 0; i < h; i += 2) { \
233  uint32_t a = AV_RN32(pixels); \
234  uint32_t b = AV_RN32(pixels + 1); \
235  l1 = (a & 0x03030303UL) + \
236  (b & 0x03030303UL); \
237  h1 = ((a & 0xFCFCFCFCUL) >> 2) + \
238  ((b & 0xFCFCFCFCUL) >> 2); \
239  OP(*((uint32_t *) block), h0 + h1 + \
240  (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
241  pixels += line_size; \
242  block += line_size; \
243  a = AV_RN32(pixels); \
244  b = AV_RN32(pixels + 1); \
245  l0 = (a & 0x03030303UL) + \
246  (b & 0x03030303UL) + \
247  0x02020202UL; \
248  h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
249  ((b & 0xFCFCFCFCUL) >> 2); \
250  OP(*((uint32_t *) block), h0 + h1 + \
251  (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
252  pixels += line_size; \
253  block += line_size; \
254  } \
255  pixels += 4 - line_size * (h + 1); \
256  block += 4 - line_size * h; \
257  } \
258 } \
259  \
260 static inline void OPNAME ## _no_rnd_pixels8_xy2_8_c(uint8_t *block, \
261  const uint8_t *pixels, \
262  ptrdiff_t line_size, \
263  int h) \
264 { \
265  /* FIXME HIGH BIT DEPTH */ \
266  int j; \
267  \
268  for (j = 0; j < 2; j++) { \
269  int i; \
270  const uint32_t a = AV_RN32(pixels); \
271  const uint32_t b = AV_RN32(pixels + 1); \
272  uint32_t l0 = (a & 0x03030303UL) + \
273  (b & 0x03030303UL) + \
274  0x01010101UL; \
275  uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
276  ((b & 0xFCFCFCFCUL) >> 2); \
277  uint32_t l1, h1; \
278  \
279  pixels += line_size; \
280  for (i = 0; i < h; i += 2) { \
281  uint32_t a = AV_RN32(pixels); \
282  uint32_t b = AV_RN32(pixels + 1); \
283  l1 = (a & 0x03030303UL) + \
284  (b & 0x03030303UL); \
285  h1 = ((a & 0xFCFCFCFCUL) >> 2) + \
286  ((b & 0xFCFCFCFCUL) >> 2); \
287  OP(*((uint32_t *) block), h0 + h1 + \
288  (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
289  pixels += line_size; \
290  block += line_size; \
291  a = AV_RN32(pixels); \
292  b = AV_RN32(pixels + 1); \
293  l0 = (a & 0x03030303UL) + \
294  (b & 0x03030303UL) + \
295  0x01010101UL; \
296  h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
297  ((b & 0xFCFCFCFCUL) >> 2); \
298  OP(*((uint32_t *) block), h0 + h1 + \
299  (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
300  pixels += line_size; \
301  block += line_size; \
302  } \
303  pixels += 4 - line_size * (h + 1); \
304  block += 4 - line_size * h; \
305  } \
306 } \
307  \
308 CALL_2X_PIXELS(OPNAME ## _pixels16_x2_8_c, \
309  OPNAME ## _pixels8_x2_8_c, \
310  8) \
311 CALL_2X_PIXELS(OPNAME ## _pixels16_y2_8_c, \
312  OPNAME ## _pixels8_y2_8_c, \
313  8) \
314 CALL_2X_PIXELS(OPNAME ## _pixels16_xy2_8_c, \
315  OPNAME ## _pixels8_xy2_8_c, \
316  8) \
317 CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_8_c, \
318  OPNAME ## _pixels8_8_c, \
319  8) \
320 CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_x2_8_c, \
321  OPNAME ## _no_rnd_pixels8_x2_8_c, \
322  8) \
323 CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_y2_8_c, \
324  OPNAME ## _no_rnd_pixels8_y2_8_c, \
325  8) \
326 CALL_2X_PIXELS(OPNAME ## _no_rnd_pixels16_xy2_8_c, \
327  OPNAME ## _no_rnd_pixels8_xy2_8_c, \
328  8) \
329 
330 #define op_avg(a, b) a = rnd_avg32(a, b)
331 #define op_put(a, b) a = b
332 #define put_no_rnd_pixels8_8_c put_pixels8_8_c
333 PIXOP2(avg, op_avg)
334 PIXOP2(put, op_put)
335 #undef op_avg
336 #undef op_put
337 
338 av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
339 {
340 #define hpel_funcs(prefix, idx, num) \
341  c->prefix ## _pixels_tab idx [0] = prefix ## _pixels ## num ## _8_c; \
342  c->prefix ## _pixels_tab idx [1] = prefix ## _pixels ## num ## _x2_8_c; \
343  c->prefix ## _pixels_tab idx [2] = prefix ## _pixels ## num ## _y2_8_c; \
344  c->prefix ## _pixels_tab idx [3] = prefix ## _pixels ## num ## _xy2_8_c
345 
346  hpel_funcs(put, [0], 16);
347  hpel_funcs(put, [1], 8);
348  hpel_funcs(put, [2], 4);
349  hpel_funcs(put, [3], 2);
350  hpel_funcs(put_no_rnd, [0], 16);
351  hpel_funcs(put_no_rnd, [1], 8);
352  hpel_funcs(avg, [0], 16);
353  hpel_funcs(avg, [1], 8);
354  hpel_funcs(avg, [2], 4);
355  hpel_funcs(avg, [3], 2);
356  hpel_funcs(avg_no_rnd,, 16);
357 
358  if (ARCH_AARCH64)
359  ff_hpeldsp_init_aarch64(c, flags);
360  if (ARCH_ALPHA)
361  ff_hpeldsp_init_alpha(c, flags);
362  if (ARCH_ARM)
363  ff_hpeldsp_init_arm(c, flags);
364  if (ARCH_PPC)
365  ff_hpeldsp_init_ppc(c, flags);
366  if (ARCH_X86)
367  ff_hpeldsp_init_x86(c, flags);
368  if (ARCH_MIPS)
369  ff_hpeldsp_init_mips(c, flags);
370 }
op_put
#define op_put(a, b)
Definition: hpeldsp.c:331
op_avg
#define op_avg(a, b)
Definition: hpeldsp.c:330
hpel_template.c
ff_hpeldsp_init_arm
av_cold void ff_hpeldsp_init_arm(HpelDSPContext *c, int flags)
Definition: hpeldsp_init_arm.c:45
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition: attributes.h:82
ff_hpeldsp_init_alpha
av_cold void ff_hpeldsp_init_alpha(HpelDSPContext *c, int flags)
Definition: hpeldsp_alpha.c:177
pel_template.c
ff_hpeldsp_init_x86
void ff_hpeldsp_init_x86(HpelDSPContext *c, int flags)
Definition: hpeldsp_init.c:317
ff_hpeldsp_init
av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
Definition: hpeldsp.c:338
HpelDSPContext
Half-pel DSP context.
Definition: hpeldsp.h:45
ff_hpeldsp_init_ppc
void ff_hpeldsp_init_ppc(HpelDSPContext *c, int flags)
Definition: hpeldsp_altivec.c:371
hpel_funcs
#define hpel_funcs(prefix, idx, num)
hpeldsp.h
Half-pel DSP functions.
flags
static int flags
Definition: cpu.c:47
avg
#define avg(a, b, c, d)
Definition: colorspacedsp_template.c:28
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
ff_hpeldsp_init_aarch64
av_cold void ff_hpeldsp_init_aarch64(HpelDSPContext *c, int flags)
Definition: hpeldsp_init_aarch64.c:86
PIXOP2
#define PIXOP2(OPNAME, OP)
Definition: hpeldsp.c:38
ff_hpeldsp_init_mips
void ff_hpeldsp_init_mips(HpelDSPContext *c, int flags)
Definition: hpeldsp_init_mips.c:114
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