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FFmpeg/libavcodec/alpha/dsputil_alpha.c
Michael Niedermayer bb198e198a interlaced motion estimation 
interlaced mpeg2 encoding
  P & B frames
  rate distored interlaced mb decission
  alternate scantable support
4mv encoding fixes (thats also why the regression tests change)
passing height to most dsp functions
interlaced mpeg4 encoding (no direct mode MBs yet)
various related cleanups
disabled old motion estimaton algorithms (log, full, ...) they will either be fixed or removed

Originally committed as revision 2638 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-12-30 16:07:57 +00:00

361 lines
14 KiB
C
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/*
* Alpha optimized DSP utils
* Copyright (c) 2002 Falk Hueffner <falk@debian.org>
*
* 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 "asm.h"
#include "../dsputil.h"
extern void simple_idct_axp(DCTELEM *block);
extern void simple_idct_put_axp(uint8_t *dest, int line_size, DCTELEM *block);
extern void simple_idct_add_axp(uint8_t *dest, int line_size, DCTELEM *block);
void put_pixels_axp_asm(uint8_t *block, const uint8_t *pixels,
int line_size, int h);
void put_pixels_clamped_mvi_asm(const DCTELEM *block, uint8_t *pixels,
int line_size);
void add_pixels_clamped_mvi_asm(const DCTELEM *block, uint8_t *pixels,
int line_size);
void (*put_pixels_clamped_axp_p)(const DCTELEM *block, uint8_t *pixels,
int line_size);
void (*add_pixels_clamped_axp_p)(const DCTELEM *block, uint8_t *pixels,
int line_size);
void get_pixels_mvi(DCTELEM *restrict block,
const uint8_t *restrict pixels, int line_size);
void diff_pixels_mvi(DCTELEM *block, const uint8_t *s1, const uint8_t *s2,
int stride);
int pix_abs8x8_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
int pix_abs16x16_mvi_asm(uint8_t *pix1, uint8_t *pix2, int line_size);
int pix_abs16x16_x2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
int pix_abs16x16_y2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
int pix_abs16x16_xy2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
#if 0
/* These functions were the base for the optimized assembler routines,
and remain here for documentation purposes. */
static void put_pixels_clamped_mvi(const DCTELEM *block, uint8_t *pixels,
int line_size)
{
int i = 8;
uint64_t clampmask = zap(-1, 0xaa); /* 0x00ff00ff00ff00ff */
do {
uint64_t shorts0, shorts1;
shorts0 = ldq(block);
shorts0 = maxsw4(shorts0, 0);
shorts0 = minsw4(shorts0, clampmask);
stl(pkwb(shorts0), pixels);
shorts1 = ldq(block + 4);
shorts1 = maxsw4(shorts1, 0);
shorts1 = minsw4(shorts1, clampmask);
stl(pkwb(shorts1), pixels + 4);
pixels += line_size;
block += 8;
} while (--i);
}
void add_pixels_clamped_mvi(const DCTELEM *block, uint8_t *pixels,
int line_size)
{
int h = 8;
/* Keep this function a leaf function by generating the constants
manually (mainly for the hack value ;-). */
uint64_t clampmask = zap(-1, 0xaa); /* 0x00ff00ff00ff00ff */
uint64_t signmask = zap(-1, 0x33);
signmask ^= signmask >> 1; /* 0x8000800080008000 */
do {
uint64_t shorts0, pix0, signs0;
uint64_t shorts1, pix1, signs1;
shorts0 = ldq(block);
shorts1 = ldq(block + 4);
pix0 = unpkbw(ldl(pixels));
/* Signed subword add (MMX paddw). */
signs0 = shorts0 & signmask;
shorts0 &= ~signmask;
shorts0 += pix0;
shorts0 ^= signs0;
/* Clamp. */
shorts0 = maxsw4(shorts0, 0);
shorts0 = minsw4(shorts0, clampmask);
/* Next 4. */
pix1 = unpkbw(ldl(pixels + 4));
signs1 = shorts1 & signmask;
shorts1 &= ~signmask;
shorts1 += pix1;
shorts1 ^= signs1;
shorts1 = maxsw4(shorts1, 0);
shorts1 = minsw4(shorts1, clampmask);
stl(pkwb(shorts0), pixels);
stl(pkwb(shorts1), pixels + 4);
pixels += line_size;
block += 8;
} while (--h);
}
#endif
static void clear_blocks_axp(DCTELEM *blocks) {
uint64_t *p = (uint64_t *) blocks;
int n = sizeof(DCTELEM) * 6 * 64;
do {
p[0] = 0;
p[1] = 0;
p[2] = 0;
p[3] = 0;
p[4] = 0;
p[5] = 0;
p[6] = 0;
p[7] = 0;
p += 8;
n -= 8 * 8;
} while (n);
}
static inline uint64_t avg2_no_rnd(uint64_t a, uint64_t b)
{
return (a & b) + (((a ^ b) & BYTE_VEC(0xfe)) >> 1);
}
static inline uint64_t avg2(uint64_t a, uint64_t b)
{
return (a | b) - (((a ^ b) & BYTE_VEC(0xfe)) >> 1);
}
#if 0
/* The XY2 routines basically utilize this scheme, but reuse parts in
each iteration. */
static inline uint64_t avg4(uint64_t l1, uint64_t l2, uint64_t l3, uint64_t l4)
{
uint64_t r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2)
+ ((l2 & ~BYTE_VEC(0x03)) >> 2)
+ ((l3 & ~BYTE_VEC(0x03)) >> 2)
+ ((l4 & ~BYTE_VEC(0x03)) >> 2);
uint64_t r2 = (( (l1 & BYTE_VEC(0x03))
+ (l2 & BYTE_VEC(0x03))
+ (l3 & BYTE_VEC(0x03))
+ (l4 & BYTE_VEC(0x03))
+ BYTE_VEC(0x02)) >> 2) & BYTE_VEC(0x03);
return r1 + r2;
}
#endif
#define OP(LOAD, STORE) \
do { \
STORE(LOAD(pixels), block); \
pixels += line_size; \
block += line_size; \
} while (--h)
#define OP_X2(LOAD, STORE) \
do { \
uint64_t pix1, pix2; \
\
pix1 = LOAD(pixels); \
pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56); \
STORE(AVG2(pix1, pix2), block); \
pixels += line_size; \
block += line_size; \
} while (--h)
#define OP_Y2(LOAD, STORE) \
do { \
uint64_t pix = LOAD(pixels); \
do { \
uint64_t next_pix; \
\
pixels += line_size; \
next_pix = LOAD(pixels); \
STORE(AVG2(pix, next_pix), block); \
block += line_size; \
pix = next_pix; \
} while (--h); \
} while (0)
#define OP_XY2(LOAD, STORE) \
do { \
uint64_t pix1 = LOAD(pixels); \
uint64_t pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56); \
uint64_t pix_l = (pix1 & BYTE_VEC(0x03)) \
+ (pix2 & BYTE_VEC(0x03)); \
uint64_t pix_h = ((pix1 & ~BYTE_VEC(0x03)) >> 2) \
+ ((pix2 & ~BYTE_VEC(0x03)) >> 2); \
\
do { \
uint64_t npix1, npix2; \
uint64_t npix_l, npix_h; \
uint64_t avg; \
\
pixels += line_size; \
npix1 = LOAD(pixels); \
npix2 = npix1 >> 8 | ((uint64_t) pixels[8] << 56); \
npix_l = (npix1 & BYTE_VEC(0x03)) \
+ (npix2 & BYTE_VEC(0x03)); \
npix_h = ((npix1 & ~BYTE_VEC(0x03)) >> 2) \
+ ((npix2 & ~BYTE_VEC(0x03)) >> 2); \
avg = (((pix_l + npix_l + AVG4_ROUNDER) >> 2) & BYTE_VEC(0x03)) \
+ pix_h + npix_h; \
STORE(avg, block); \
\
block += line_size; \
pix_l = npix_l; \
pix_h = npix_h; \
} while (--h); \
} while (0)
#define MAKE_OP(OPNAME, SUFF, OPKIND, STORE) \
static void OPNAME ## _pixels ## SUFF ## _axp \
(uint8_t *restrict block, const uint8_t *restrict pixels, \
int line_size, int h) \
{ \
if ((size_t) pixels & 0x7) { \
OPKIND(uldq, STORE); \
} else { \
OPKIND(ldq, STORE); \
} \
} \
\
static void OPNAME ## _pixels16 ## SUFF ## _axp \
(uint8_t *restrict block, const uint8_t *restrict pixels, \
int line_size, int h) \
{ \
OPNAME ## _pixels ## SUFF ## _axp(block, pixels, line_size, h); \
OPNAME ## _pixels ## SUFF ## _axp(block + 8, pixels + 8, line_size, h); \
}
#define PIXOP(OPNAME, STORE) \
MAKE_OP(OPNAME, , OP, STORE) \
MAKE_OP(OPNAME, _x2, OP_X2, STORE) \
MAKE_OP(OPNAME, _y2, OP_Y2, STORE) \
MAKE_OP(OPNAME, _xy2, OP_XY2, STORE)
/* Rounding primitives. */
#define AVG2 avg2
#define AVG4 avg4
#define AVG4_ROUNDER BYTE_VEC(0x02)
#define STORE(l, b) stq(l, b)
PIXOP(put, STORE);
#undef STORE
#define STORE(l, b) stq(AVG2(l, ldq(b)), b);
PIXOP(avg, STORE);
/* Not rounding primitives. */
#undef AVG2
#undef AVG4
#undef AVG4_ROUNDER
#undef STORE
#define AVG2 avg2_no_rnd
#define AVG4 avg4_no_rnd
#define AVG4_ROUNDER BYTE_VEC(0x01)
#define STORE(l, b) stq(l, b)
PIXOP(put_no_rnd, STORE);
#undef STORE
#define STORE(l, b) stq(AVG2(l, ldq(b)), b);
PIXOP(avg_no_rnd, STORE);
void put_pixels16_axp_asm(uint8_t *block, const uint8_t *pixels,
int line_size, int h)
{
put_pixels_axp_asm(block, pixels, line_size, h);
put_pixels_axp_asm(block + 8, pixels + 8, line_size, h);
}
static int sad16x16_mvi(void *s, uint8_t *a, uint8_t *b, int stride)
{
return pix_abs16x16_mvi_asm(a, b, stride);
}
void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx)
{
c->put_pixels_tab[0][0] = put_pixels16_axp_asm;
c->put_pixels_tab[0][1] = put_pixels16_x2_axp;
c->put_pixels_tab[0][2] = put_pixels16_y2_axp;
c->put_pixels_tab[0][3] = put_pixels16_xy2_axp;
c->put_no_rnd_pixels_tab[0][0] = put_pixels16_axp_asm;
c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_axp;
c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_axp;
c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_axp;
c->avg_pixels_tab[0][0] = avg_pixels16_axp;
c->avg_pixels_tab[0][1] = avg_pixels16_x2_axp;
c->avg_pixels_tab[0][2] = avg_pixels16_y2_axp;
c->avg_pixels_tab[0][3] = avg_pixels16_xy2_axp;
c->avg_no_rnd_pixels_tab[0][0] = avg_no_rnd_pixels16_axp;
c->avg_no_rnd_pixels_tab[0][1] = avg_no_rnd_pixels16_x2_axp;
c->avg_no_rnd_pixels_tab[0][2] = avg_no_rnd_pixels16_y2_axp;
c->avg_no_rnd_pixels_tab[0][3] = avg_no_rnd_pixels16_xy2_axp;
c->put_pixels_tab[1][0] = put_pixels_axp_asm;
c->put_pixels_tab[1][1] = put_pixels_x2_axp;
c->put_pixels_tab[1][2] = put_pixels_y2_axp;
c->put_pixels_tab[1][3] = put_pixels_xy2_axp;
c->put_no_rnd_pixels_tab[1][0] = put_pixels_axp_asm;
c->put_no_rnd_pixels_tab[1][1] = put_no_rnd_pixels_x2_axp;
c->put_no_rnd_pixels_tab[1][2] = put_no_rnd_pixels_y2_axp;
c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels_xy2_axp;
c->avg_pixels_tab[1][0] = avg_pixels_axp;
c->avg_pixels_tab[1][1] = avg_pixels_x2_axp;
c->avg_pixels_tab[1][2] = avg_pixels_y2_axp;
c->avg_pixels_tab[1][3] = avg_pixels_xy2_axp;
c->avg_no_rnd_pixels_tab[1][0] = avg_no_rnd_pixels_axp;
c->avg_no_rnd_pixels_tab[1][1] = avg_no_rnd_pixels_x2_axp;
c->avg_no_rnd_pixels_tab[1][2] = avg_no_rnd_pixels_y2_axp;
c->avg_no_rnd_pixels_tab[1][3] = avg_no_rnd_pixels_xy2_axp;
c->clear_blocks = clear_blocks_axp;
/* amask clears all bits that correspond to present features. */
if (amask(AMASK_MVI) == 0) {
c->put_pixels_clamped = put_pixels_clamped_mvi_asm;
c->add_pixels_clamped = add_pixels_clamped_mvi_asm;
c->get_pixels = get_pixels_mvi;
c->diff_pixels = diff_pixels_mvi;
c->sad[0] = sad16x16_mvi;
c->sad[1] = pix_abs8x8_mvi;
// c->pix_abs[0][0] = pix_abs16x16_mvi_asm; //FIXME function arguments for the asm must be fixed
c->pix_abs[0][0] = sad16x16_mvi;
c->pix_abs[1][0] = pix_abs8x8_mvi;
c->pix_abs[0][1] = pix_abs16x16_x2_mvi;
c->pix_abs[0][2] = pix_abs16x16_y2_mvi;
c->pix_abs[0][3] = pix_abs16x16_xy2_mvi;
}
put_pixels_clamped_axp_p = c->put_pixels_clamped;
add_pixels_clamped_axp_p = c->add_pixels_clamped;
c->idct_put = simple_idct_put_axp;
c->idct_add = simple_idct_add_axp;
c->idct = simple_idct_axp;
}
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