39825f315f
* modified PAVGB mmx macro to select mmx register with FE constant Originally committed as revision 657 to svn://svn.ffmpeg.org/ffmpeg/trunk
545 lines
16 KiB
C
545 lines
16 KiB
C
/*
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* MMX optimized DSP utils
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* Copyright (c) 2000, 2001 Fabrice Bellard.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
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*/
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#include "../dsputil.h"
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#include "../simple_idct.h"
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int mm_flags; /* multimedia extension flags */
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int pix_abs16x16_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs16x16_x2_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs16x16_y2_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs16x16_xy2_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs16x16_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs16x16_x2_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs16x16_y2_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs16x16_xy2_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_x2_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_y2_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_xy2_mmx(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_x2_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_y2_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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int pix_abs8x8_xy2_mmx2(UINT8 *blk1, UINT8 *blk2, int lx);
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/* external functions, from idct_mmx.c */
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void ff_mmx_idct(DCTELEM *block);
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void ff_mmxext_idct(DCTELEM *block);
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/* pixel operations */
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static const uint64_t mm_bone __attribute__ ((aligned(8))) = 0x0101010101010101ULL;
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static const uint64_t mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001ULL;
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static const uint64_t mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002ULL;
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#define JUMPALIGN() __asm __volatile (".balign 8"::)
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#define MOVQ_ZERO(regd) __asm __volatile ("pxor %%" #regd ", %%" #regd ::)
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#define MOVQ_WONE(regd) \
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__asm __volatile ( \
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"pcmpeqd %%" #regd ", %%" #regd " \n\t" \
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"psrlw $15, %%" #regd ::)
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#define MOVQ_BFE(regd) \
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__asm __volatile ( \
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"pcmpeqd %%" #regd ", %%" #regd " \n\t"\
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"paddb %%" #regd ", %%" #regd " \n\t" ::)
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#ifndef PIC
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#define MOVQ_BONE(regd) __asm __volatile ("movq %0, %%" #regd " \n\t" ::"m"(mm_bone))
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#define MOVQ_WTWO(regd) __asm __volatile ("movq %0, %%" #regd " \n\t" ::"m"(mm_wtwo))
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#else
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// for shared library it's better to use this way for accessing constants
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// pcmpeqd -> -1
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#define MOVQ_BONE(regd) \
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__asm __volatile ( \
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"pcmpeqd %%" #regd ", %%" #regd " \n\t" \
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"psrlw $15, %%" #regd " \n\t" \
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"packuswb %%" #regd ", %%" #regd " \n\t" ::)
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#define MOVQ_WTWO(regd) \
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__asm __volatile ( \
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"pcmpeqd %%" #regd ", %%" #regd " \n\t" \
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"psrlw $15, %%" #regd " \n\t" \
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"psllw $1, %%" #regd " \n\t"::)
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#endif
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// using regr as temporary and for the output result
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// first argument is unmodifed and second is trashed
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// regfe is supposed to contain 0xfefefefefefefefe
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#define PAVGB_MMX_NO_RND(rega, regb, regr, regfe) \
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"movq " #rega ", " #regr " \n\t"\
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"pand " #regb ", " #regr " \n\t"\
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"pxor " #rega ", " #regb " \n\t"\
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"pand " #regfe "," #regb " \n\t"\
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"psrlq $1, " #regb " \n\t"\
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"paddb " #regb ", " #regr " \n\t"
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#define PAVGB_MMX(rega, regb, regr, regfe) \
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"movq " #rega ", " #regr " \n\t"\
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"por " #regb ", " #regr " \n\t"\
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"pxor " #rega ", " #regb " \n\t"\
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"pand " #regfe "," #regb " \n\t"\
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"psrlq $1, " #regb " \n\t"\
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"psubb " #regb ", " #regr " \n\t"
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// mm6 is supposed to contain 0xfefefefefefefefe
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#define PAVGBP_MMX_NO_RND(rega, regb, regr, regc, regd, regp) \
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"movq " #rega ", " #regr " \n\t"\
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"movq " #regc ", " #regp " \n\t"\
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"pand " #regb ", " #regr " \n\t"\
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"pand " #regd ", " #regp " \n\t"\
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"pxor " #rega ", " #regb " \n\t"\
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"pxor " #regc ", " #regd " \n\t"\
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"pand %%mm6, " #regb " \n\t"\
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"pand %%mm6, " #regd " \n\t"\
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"psrlq $1, " #regb " \n\t"\
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"psrlq $1, " #regd " \n\t"\
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"paddb " #regb ", " #regr " \n\t"\
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"paddb " #regd ", " #regp " \n\t"
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#define PAVGBP_MMX(rega, regb, regr, regc, regd, regp) \
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"movq " #rega ", " #regr " \n\t"\
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"movq " #regc ", " #regp " \n\t"\
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"por " #regb ", " #regr " \n\t"\
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"por " #regd ", " #regp " \n\t"\
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"pxor " #rega ", " #regb " \n\t"\
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"pxor " #regc ", " #regd " \n\t"\
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"pand %%mm6, " #regb " \n\t"\
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"pand %%mm6, " #regd " \n\t"\
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"psrlq $1, " #regd " \n\t"\
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"psrlq $1, " #regb " \n\t"\
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"psubb " #regb ", " #regr " \n\t"\
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"psubb " #regd ", " #regp " \n\t"
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/***********************************/
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/* MMX no rounding */
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#define DEF(x, y) x ## _no_rnd_ ## y ##_mmx
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#define SET_RND MOVQ_WONE
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#define PAVGBP(a, b, c, d, e, f) PAVGBP_MMX_NO_RND(a, b, c, d, e, f)
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#define PAVGB(a, b, c, e) PAVGB_MMX_NO_RND(a, b, c, e)
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#include "dsputil_mmx_rnd.h"
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#undef DEF
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#undef SET_RND
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#undef PAVGBP
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#undef PAVGB
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/***********************************/
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/* MMX rounding */
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#define DEF(x, y) x ## _ ## y ##_mmx
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#define SET_RND MOVQ_WTWO
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#define PAVGBP(a, b, c, d, e, f) PAVGBP_MMX(a, b, c, d, e, f)
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#define PAVGB(a, b, c, e) PAVGB_MMX(a, b, c, e)
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#include "dsputil_mmx_rnd.h"
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#undef DEF
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#undef SET_RND
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#undef PAVGBP
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#undef PAVGB
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/***********************************/
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/* 3Dnow specific */
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#define DEF(x) x ## _3dnow
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/* for Athlons PAVGUSB is prefered */
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#define PAVGB "pavgusb"
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#include "dsputil_mmx_avg.h"
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#undef DEF
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#undef PAVGB
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/***********************************/
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/* MMX2 specific */
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#define DEF(x) x ## _mmx2
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/* Introduced only in MMX2 set */
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#define PAVGB "pavgb"
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#include "dsputil_mmx_avg.h"
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#undef DEF
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#undef PAVGB
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/***********************************/
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/* standard MMX */
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static void get_pixels_mmx(DCTELEM *block, const UINT8 *pixels, int line_size)
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{
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asm volatile(
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"movl $-128, %%eax \n\t"
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"pxor %%mm7, %%mm7 \n\t"
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".balign 16 \n\t"
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"1: \n\t"
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"movq (%0), %%mm0 \n\t"
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"movq (%0, %2), %%mm2 \n\t"
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"movq %%mm0, %%mm1 \n\t"
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"movq %%mm2, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpckhbw %%mm7, %%mm1 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"movq %%mm0, (%1, %%eax)\n\t"
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"movq %%mm1, 8(%1, %%eax)\n\t"
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"movq %%mm2, 16(%1, %%eax)\n\t"
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"movq %%mm3, 24(%1, %%eax)\n\t"
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"addl %3, %0 \n\t"
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"addl $32, %%eax \n\t"
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"js 1b \n\t"
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: "+r" (pixels)
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: "r" (block+64), "r" (line_size), "r" (line_size*2)
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: "%eax"
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);
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}
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static void diff_pixels_mmx(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride)
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{
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asm volatile(
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"pxor %%mm7, %%mm7 \n\t"
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"movl $-128, %%eax \n\t"
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".balign 16 \n\t"
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"1: \n\t"
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"movq (%0), %%mm0 \n\t"
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"movq (%1), %%mm2 \n\t"
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"movq %%mm0, %%mm1 \n\t"
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"movq %%mm2, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"punpckhbw %%mm7, %%mm1 \n\t"
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"punpcklbw %%mm7, %%mm2 \n\t"
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"punpckhbw %%mm7, %%mm3 \n\t"
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"psubw %%mm2, %%mm0 \n\t"
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"psubw %%mm3, %%mm1 \n\t"
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"movq %%mm0, (%2, %%eax)\n\t"
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"movq %%mm1, 8(%2, %%eax)\n\t"
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"addl %3, %0 \n\t"
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"addl %3, %1 \n\t"
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"addl $16, %%eax \n\t"
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"jnz 1b \n\t"
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: "+r" (s1), "+r" (s2)
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: "r" (block+64), "r" (stride)
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: "%eax"
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);
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}
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static void put_pixels_clamped_mmx(const DCTELEM *block, UINT8 *pixels, int line_size)
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{
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const DCTELEM *p;
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UINT8 *pix;
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/* read the pixels */
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p = block;
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pix = pixels;
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/* unrolled loop */
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__asm __volatile(
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"movq %3, %%mm0\n\t"
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"movq 8%3, %%mm1\n\t"
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"movq 16%3, %%mm2\n\t"
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"movq 24%3, %%mm3\n\t"
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"movq 32%3, %%mm4\n\t"
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"movq 40%3, %%mm5\n\t"
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"movq 48%3, %%mm6\n\t"
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"movq 56%3, %%mm7\n\t"
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"packuswb %%mm1, %%mm0\n\t"
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"packuswb %%mm3, %%mm2\n\t"
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"packuswb %%mm5, %%mm4\n\t"
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"packuswb %%mm7, %%mm6\n\t"
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"movq %%mm0, (%0)\n\t"
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"movq %%mm2, (%0, %1)\n\t"
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"movq %%mm4, (%0, %1, 2)\n\t"
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"movq %%mm6, (%0, %2)\n\t"
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::"r" (pix), "r" (line_size), "r" (line_size*3), "m"(*p)
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:"memory");
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pix += line_size*4;
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p += 32;
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// if here would be an exact copy of the code above
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// compiler would generate some very strange code
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// thus using "r"
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__asm __volatile(
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"movq (%3), %%mm0\n\t"
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"movq 8(%3), %%mm1\n\t"
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"movq 16(%3), %%mm2\n\t"
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"movq 24(%3), %%mm3\n\t"
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"movq 32(%3), %%mm4\n\t"
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"movq 40(%3), %%mm5\n\t"
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"movq 48(%3), %%mm6\n\t"
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"movq 56(%3), %%mm7\n\t"
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"packuswb %%mm1, %%mm0\n\t"
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"packuswb %%mm3, %%mm2\n\t"
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"packuswb %%mm5, %%mm4\n\t"
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"packuswb %%mm7, %%mm6\n\t"
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"movq %%mm0, (%0)\n\t"
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"movq %%mm2, (%0, %1)\n\t"
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"movq %%mm4, (%0, %1, 2)\n\t"
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"movq %%mm6, (%0, %2)\n\t"
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::"r" (pix), "r" (line_size), "r" (line_size*3), "r"(p)
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:"memory");
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}
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static void add_pixels_clamped_mmx(const DCTELEM *block, UINT8 *pixels, int line_size)
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{
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const DCTELEM *p;
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UINT8 *pix;
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int i;
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/* read the pixels */
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p = block;
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pix = pixels;
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MOVQ_ZERO(mm7);
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i = 4;
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do {
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__asm __volatile(
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"movq (%2), %%mm0\n\t"
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"movq 8(%2), %%mm1\n\t"
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"movq 16(%2), %%mm2\n\t"
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"movq 24(%2), %%mm3\n\t"
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"movq %0, %%mm4\n\t"
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"movq %1, %%mm6\n\t"
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"movq %%mm4, %%mm5\n\t"
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"punpcklbw %%mm7, %%mm4\n\t"
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"punpckhbw %%mm7, %%mm5\n\t"
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"paddsw %%mm4, %%mm0\n\t"
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"paddsw %%mm5, %%mm1\n\t"
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"movq %%mm6, %%mm5\n\t"
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"punpcklbw %%mm7, %%mm6\n\t"
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"punpckhbw %%mm7, %%mm5\n\t"
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"paddsw %%mm6, %%mm2\n\t"
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"paddsw %%mm5, %%mm3\n\t"
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"packuswb %%mm1, %%mm0\n\t"
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"packuswb %%mm3, %%mm2\n\t"
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"movq %%mm0, %0\n\t"
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"movq %%mm2, %1\n\t"
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:"+m"(*pix), "+m"(*(pix+line_size))
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:"r"(p)
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:"memory");
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pix += line_size*2;
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p += 16;
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} while (--i);
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}
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static void put_pixels_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
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{
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__asm __volatile(
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"lea (%3, %3), %%eax \n\t"
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".balign 8 \n\t"
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"1: \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"addl %%eax, %1 \n\t"
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"addl %%eax, %2 \n\t"
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"movq (%1), %%mm0 \n\t"
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"movq (%1, %3), %%mm1 \n\t"
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"movq %%mm0, (%2) \n\t"
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"movq %%mm1, (%2, %3) \n\t"
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"addl %%eax, %1 \n\t"
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"addl %%eax, %2 \n\t"
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"subl $4, %0 \n\t"
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"jnz 1b \n\t"
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: "+g"(h), "+r" (pixels), "+r" (block)
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: "r"(line_size)
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: "%eax", "memory"
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);
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}
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static void clear_blocks_mmx(DCTELEM *blocks)
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{
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__asm __volatile(
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"pxor %%mm7, %%mm7 \n\t"
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"movl $-128*6, %%eax \n\t"
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"1: \n\t"
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"movq %%mm7, (%0, %%eax) \n\t"
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"movq %%mm7, 8(%0, %%eax) \n\t"
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"movq %%mm7, 16(%0, %%eax) \n\t"
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"movq %%mm7, 24(%0, %%eax) \n\t"
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"addl $32, %%eax \n\t"
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" js 1b \n\t"
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: : "r" (((int)blocks)+128*6)
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: "%eax"
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);
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}
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#if 0
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static void just_return() { return; }
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#endif
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void dsputil_init_mmx(void)
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{
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mm_flags = mm_support();
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#if 1
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printf("libavcodec: CPU flags:");
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if (mm_flags & MM_MMX)
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printf(" mmx");
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if (mm_flags & MM_MMXEXT)
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printf(" mmxext");
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if (mm_flags & MM_3DNOW)
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printf(" 3dnow");
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if (mm_flags & MM_SSE)
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printf(" sse");
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if (mm_flags & MM_SSE2)
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printf(" sse2");
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printf("\n");
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#endif
|
|
|
|
if (mm_flags & MM_MMX) {
|
|
get_pixels = get_pixels_mmx;
|
|
diff_pixels = diff_pixels_mmx;
|
|
put_pixels_clamped = put_pixels_clamped_mmx;
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add_pixels_clamped = add_pixels_clamped_mmx;
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clear_blocks= clear_blocks_mmx;
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|
|
|
pix_abs16x16 = pix_abs16x16_mmx;
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pix_abs16x16_x2 = pix_abs16x16_x2_mmx;
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pix_abs16x16_y2 = pix_abs16x16_y2_mmx;
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pix_abs16x16_xy2 = pix_abs16x16_xy2_mmx;
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pix_abs8x8 = pix_abs8x8_mmx;
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pix_abs8x8_x2 = pix_abs8x8_x2_mmx;
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pix_abs8x8_y2 = pix_abs8x8_y2_mmx;
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pix_abs8x8_xy2= pix_abs8x8_xy2_mmx;
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av_fdct = fdct_mmx;
|
|
|
|
put_pixels_tab[0] = put_pixels_mmx;
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put_pixels_tab[1] = put_pixels_x2_mmx;
|
|
put_pixels_tab[2] = put_pixels_y2_mmx;
|
|
put_pixels_tab[3] = put_pixels_xy2_mmx;
|
|
|
|
put_no_rnd_pixels_tab[0] = put_pixels_mmx;
|
|
put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_mmx;
|
|
put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_mmx;
|
|
put_no_rnd_pixels_tab[3] = put_no_rnd_pixels_xy2_mmx;
|
|
|
|
avg_pixels_tab[0] = avg_pixels_mmx;
|
|
avg_pixels_tab[1] = avg_pixels_x2_mmx;
|
|
avg_pixels_tab[2] = avg_pixels_y2_mmx;
|
|
avg_pixels_tab[3] = avg_pixels_xy2_mmx;
|
|
|
|
avg_no_rnd_pixels_tab[0] = avg_no_rnd_pixels_mmx;
|
|
avg_no_rnd_pixels_tab[1] = avg_no_rnd_pixels_x2_mmx;
|
|
avg_no_rnd_pixels_tab[2] = avg_no_rnd_pixels_y2_mmx;
|
|
avg_no_rnd_pixels_tab[3] = avg_no_rnd_pixels_xy2_mmx;
|
|
|
|
if (mm_flags & MM_MMXEXT) {
|
|
pix_abs16x16 = pix_abs16x16_mmx2;
|
|
pix_abs16x16_x2 = pix_abs16x16_x2_mmx2;
|
|
pix_abs16x16_y2 = pix_abs16x16_y2_mmx2;
|
|
pix_abs16x16_xy2= pix_abs16x16_xy2_mmx2;
|
|
|
|
pix_abs8x8 = pix_abs8x8_mmx2;
|
|
pix_abs8x8_x2 = pix_abs8x8_x2_mmx2;
|
|
pix_abs8x8_y2 = pix_abs8x8_y2_mmx2;
|
|
pix_abs8x8_xy2= pix_abs8x8_xy2_mmx2;
|
|
|
|
put_pixels_tab[1] = put_pixels_x2_mmx2;
|
|
put_pixels_tab[2] = put_pixels_y2_mmx2;
|
|
put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_mmx2;
|
|
put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_mmx2;
|
|
|
|
avg_pixels_tab[0] = avg_pixels_mmx2;
|
|
avg_pixels_tab[1] = avg_pixels_x2_mmx2;
|
|
avg_pixels_tab[2] = avg_pixels_y2_mmx2;
|
|
avg_pixels_tab[3] = avg_pixels_xy2_mmx2;
|
|
} else if (mm_flags & MM_3DNOW) {
|
|
put_pixels_tab[1] = put_pixels_x2_3dnow;
|
|
put_pixels_tab[2] = put_pixels_y2_3dnow;
|
|
put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_3dnow;
|
|
put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_3dnow;
|
|
|
|
avg_pixels_tab[0] = avg_pixels_3dnow;
|
|
avg_pixels_tab[1] = avg_pixels_x2_3dnow;
|
|
avg_pixels_tab[2] = avg_pixels_y2_3dnow;
|
|
avg_pixels_tab[3] = avg_pixels_xy2_3dnow;
|
|
}
|
|
|
|
/* idct */
|
|
if (mm_flags & MM_MMXEXT) {
|
|
ff_idct = ff_mmxext_idct;
|
|
} else {
|
|
ff_idct = ff_mmx_idct;
|
|
}
|
|
#ifdef SIMPLE_IDCT
|
|
// ff_idct = simple_idct;
|
|
ff_idct = simple_idct_mmx;
|
|
#endif
|
|
}
|
|
|
|
#if 0
|
|
// for speed testing
|
|
get_pixels = just_return;
|
|
put_pixels_clamped = just_return;
|
|
add_pixels_clamped = just_return;
|
|
|
|
pix_abs16x16 = just_return;
|
|
pix_abs16x16_x2 = just_return;
|
|
pix_abs16x16_y2 = just_return;
|
|
pix_abs16x16_xy2 = just_return;
|
|
|
|
put_pixels_tab[0] = just_return;
|
|
put_pixels_tab[1] = just_return;
|
|
put_pixels_tab[2] = just_return;
|
|
put_pixels_tab[3] = just_return;
|
|
|
|
put_no_rnd_pixels_tab[0] = just_return;
|
|
put_no_rnd_pixels_tab[1] = just_return;
|
|
put_no_rnd_pixels_tab[2] = just_return;
|
|
put_no_rnd_pixels_tab[3] = just_return;
|
|
|
|
avg_pixels_tab[0] = just_return;
|
|
avg_pixels_tab[1] = just_return;
|
|
avg_pixels_tab[2] = just_return;
|
|
avg_pixels_tab[3] = just_return;
|
|
|
|
avg_no_rnd_pixels_tab[0] = just_return;
|
|
avg_no_rnd_pixels_tab[1] = just_return;
|
|
avg_no_rnd_pixels_tab[2] = just_return;
|
|
avg_no_rnd_pixels_tab[3] = just_return;
|
|
|
|
//av_fdct = just_return;
|
|
//ff_idct = just_return;
|
|
#endif
|
|
}
|
|
|
|
/* remove any non bit exact operation (testing purpose). NOTE that
|
|
this function should be kept as small as possible because it is
|
|
always difficult to test automatically non bit exact cases. */
|
|
void dsputil_set_bit_exact_mmx(void)
|
|
{
|
|
if (mm_flags & MM_MMX) {
|
|
if (mm_flags & MM_MMXEXT) {
|
|
put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_mmx;
|
|
put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_mmx;
|
|
avg_pixels_tab[3] = avg_pixels_xy2_mmx;
|
|
} else if (mm_flags & MM_3DNOW) {
|
|
put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_mmx;
|
|
put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_mmx;
|
|
avg_pixels_tab[3] = avg_pixels_xy2_mmx;
|
|
}
|
|
}
|
|
}
|