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x86: dsputilenc: convert ff_sse{8, 16}_mmx() to yasm

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Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Timothy Gu 2014-05-23 17:18:09 -07:00 committed by Michael Niedermayer
parent 6e725f19f8
commit ad733089b0
2 changed files with 47 additions and 146 deletions
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52
libavcodec/x86/dsputilenc.asm
View File

@ -274,19 +274,27 @@ INIT_XMM ssse3
%define ABS_SUM_8x8 ABS_SUM_8x8_64
HADAMARD8_DIFF 9
INIT_XMM sse2
; int ff_sse16_sse2(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
; int line_size, int h);
cglobal sse16, 5, 5, 8
shr r4d, 1
; int ff_sse*_*(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
; int line_size, int h)
%macro SUM_SQUARED_ERRORS 2
cglobal sse%1, 5,5,%2, v, pix1, pix2, lsize, h
%if %1 == mmsize
shr hd, 1
%endif
pxor m0, m0 ; mm0 = 0
pxor m7, m7 ; mm7 holds the sum
.next2lines: ; FIXME why are these unaligned movs? pix1[] is aligned
movu m1, [r1 ] ; mm1 = pix1[0][0-15]
movu m2, [r2 ] ; mm2 = pix2[0][0-15]
movu m3, [r1+r3] ; mm3 = pix1[1][0-15]
movu m4, [r2+r3] ; mm4 = pix2[1][0-15]
movu m1, [pix1q] ; m1 = pix1[0][0-15], [0-7] for mmx
movu m2, [pix2q] ; m2 = pix2[0][0-15], [0-7] for mmx
%if %1 == mmsize
movu m3, [pix1q+lsizeq] ; m3 = pix1[1][0-15], [0-7] for mmx
movu m4, [pix2q+lsizeq] ; m4 = pix2[1][0-15], [0-7] for mmx
%else ; %1 / 2 == mmsize; mmx only
mova m3, [pix1q+8] ; m3 = pix1[0][8-15]
mova m4, [pix2q+8] ; m4 = pix2[0][8-15]
%endif
; todo: mm1-mm2, mm3-mm4
; algo: subtract mm1 from mm2 with saturation and vice versa
@ -315,25 +323,43 @@ cglobal sse16, 5, 5, 8
pmaddwd m1, m1
pmaddwd m3, m3
lea r1, [r1+r3*2] ; pix1 += 2*line_size
lea r2, [r2+r3*2] ; pix2 += 2*line_size
paddd m1, m2
paddd m3, m4
paddd m7, m1
paddd m7, m3
dec r4
%if %1 == mmsize
lea pix1q, [pix1q + 2*lsizeq]
lea pix2q, [pix2q + 2*lsizeq]
%else
add pix1q, lsizeq
add pix2q, lsizeq
%endif
dec hd
jnz .next2lines
mova m1, m7
%if mmsize == 8
psrlq m7, 32 ; shift hi dword to lo
%else
psrldq m7, 8 ; shift hi qword to lo
paddd m7, m1
mova m1, m7
psrldq m7, 4 ; shift hi dword to lo
%endif
paddd m7, m1
movd eax, m7 ; return value
RET
%endmacro
INIT_MMX mmx
SUM_SQUARED_ERRORS 8, 0
INIT_MMX mmx
SUM_SQUARED_ERRORS 16, 0
INIT_XMM sse2
SUM_SQUARED_ERRORS 16, 8
INIT_MMX mmx
; void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, int line_size)

141
libavcodec/x86/dsputilenc_mmx.c
View File

@ -42,138 +42,13 @@ int ff_sum_abs_dctelem_mmx(int16_t *block);
int ff_sum_abs_dctelem_mmxext(int16_t *block);
int ff_sum_abs_dctelem_sse2(int16_t *block);
int ff_sum_abs_dctelem_ssse3(int16_t *block);
int ff_sse8_mmx(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h);
int ff_sse16_mmx(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h);
#if HAVE_INLINE_ASM
static int sse8_mmx(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int tmp;
__asm__ volatile (
"movl %4, %%ecx \n"
"shr $1, %%ecx \n"
"pxor %%mm0, %%mm0 \n" /* mm0 = 0 */
"pxor %%mm7, %%mm7 \n" /* mm7 holds the sum */
"1: \n"
"movq (%0), %%mm1 \n" /* mm1 = pix1[0][0 - 7] */
"movq (%1), %%mm2 \n" /* mm2 = pix2[0][0 - 7] */
"movq (%0, %3), %%mm3 \n" /* mm3 = pix1[1][0 - 7] */
"movq (%1, %3), %%mm4 \n" /* mm4 = pix2[1][0 - 7] */
/* todo: mm1-mm2, mm3-mm4 */
/* algo: subtract mm1 from mm2 with saturation and vice versa */
/* OR the results to get absolute difference */
"movq %%mm1, %%mm5 \n"
"movq %%mm3, %%mm6 \n"
"psubusb %%mm2, %%mm1 \n"
"psubusb %%mm4, %%mm3 \n"
"psubusb %%mm5, %%mm2 \n"
"psubusb %%mm6, %%mm4 \n"
"por %%mm1, %%mm2 \n"
"por %%mm3, %%mm4 \n"
/* now convert to 16-bit vectors so we can square them */
"movq %%mm2, %%mm1 \n"
"movq %%mm4, %%mm3 \n"
"punpckhbw %%mm0, %%mm2 \n"
"punpckhbw %%mm0, %%mm4 \n"
"punpcklbw %%mm0, %%mm1 \n" /* mm1 now spread over (mm1, mm2) */
"punpcklbw %%mm0, %%mm3 \n" /* mm4 now spread over (mm3, mm4) */
"pmaddwd %%mm2, %%mm2 \n"
"pmaddwd %%mm4, %%mm4 \n"
"pmaddwd %%mm1, %%mm1 \n"
"pmaddwd %%mm3, %%mm3 \n"
"lea (%0, %3, 2), %0 \n" /* pix1 += 2 * line_size */
"lea (%1, %3, 2), %1 \n" /* pix2 += 2 * line_size */
"paddd %%mm2, %%mm1 \n"
"paddd %%mm4, %%mm3 \n"
"paddd %%mm1, %%mm7 \n"
"paddd %%mm3, %%mm7 \n"
"decl %%ecx \n"
"jnz 1b \n"
"movq %%mm7, %%mm1 \n"
"psrlq $32, %%mm7 \n" /* shift hi dword to lo */
"paddd %%mm7, %%mm1 \n"
"movd %%mm1, %2 \n"
: "+r" (pix1), "+r" (pix2), "=r" (tmp)
: "r" ((x86_reg) line_size), "m" (h)
: "%ecx");
return tmp;
}
static int sse16_mmx(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int tmp;
__asm__ volatile (
"movl %4, %%ecx\n"
"pxor %%mm0, %%mm0\n" /* mm0 = 0 */
"pxor %%mm7, %%mm7\n" /* mm7 holds the sum */
"1:\n"
"movq (%0), %%mm1\n" /* mm1 = pix1[0 - 7] */
"movq (%1), %%mm2\n" /* mm2 = pix2[0 - 7] */
"movq 8(%0), %%mm3\n" /* mm3 = pix1[8 - 15] */
"movq 8(%1), %%mm4\n" /* mm4 = pix2[8 - 15] */
/* todo: mm1-mm2, mm3-mm4 */
/* algo: subtract mm1 from mm2 with saturation and vice versa */
/* OR the results to get absolute difference */
"movq %%mm1, %%mm5\n"
"movq %%mm3, %%mm6\n"
"psubusb %%mm2, %%mm1\n"
"psubusb %%mm4, %%mm3\n"
"psubusb %%mm5, %%mm2\n"
"psubusb %%mm6, %%mm4\n"
"por %%mm1, %%mm2\n"
"por %%mm3, %%mm4\n"
/* now convert to 16-bit vectors so we can square them */
"movq %%mm2, %%mm1\n"
"movq %%mm4, %%mm3\n"
"punpckhbw %%mm0, %%mm2\n"
"punpckhbw %%mm0, %%mm4\n"
"punpcklbw %%mm0, %%mm1\n" /* mm1 now spread over (mm1, mm2) */
"punpcklbw %%mm0, %%mm3\n" /* mm4 now spread over (mm3, mm4) */
"pmaddwd %%mm2, %%mm2\n"
"pmaddwd %%mm4, %%mm4\n"
"pmaddwd %%mm1, %%mm1\n"
"pmaddwd %%mm3, %%mm3\n"
"add %3, %0\n"
"add %3, %1\n"
"paddd %%mm2, %%mm1\n"
"paddd %%mm4, %%mm3\n"
"paddd %%mm1, %%mm7\n"
"paddd %%mm3, %%mm7\n"
"decl %%ecx\n"
"jnz 1b\n"
"movq %%mm7, %%mm1\n"
"psrlq $32, %%mm7\n" /* shift hi dword to lo */
"paddd %%mm7, %%mm1\n"
"movd %%mm1, %2\n"
: "+r" (pix1), "+r" (pix2), "=r" (tmp)
: "r" ((x86_reg) line_size), "m" (h)
: "%ecx");
return tmp;
}
static int hf_noise8_mmx(uint8_t *pix1, int line_size, int h)
{
int tmp;
@ -427,7 +302,7 @@ static int nsse16_mmx(MpegEncContext *c, uint8_t *pix1, uint8_t *pix2,
if (c)
score1 = c->dsp.sse[0](c, pix1, pix2, line_size, h);
else
score1 = sse16_mmx(c, pix1, pix2, line_size, h);
score1 = ff_sse16_mmx(c, pix1, pix2, line_size, h);
score2 = hf_noise16_mmx(pix1, line_size, h) -
hf_noise16_mmx(pix2, line_size, h);
@ -440,7 +315,7 @@ static int nsse16_mmx(MpegEncContext *c, uint8_t *pix1, uint8_t *pix2,
static int nsse8_mmx(MpegEncContext *c, uint8_t *pix1, uint8_t *pix2,
int line_size, int h)
{
int score1 = sse8_mmx(c, pix1, pix2, line_size, h);
int score1 = ff_sse8_mmx(c, pix1, pix2, line_size, h);
int score2 = hf_noise8_mmx(pix1, line_size, h) -
hf_noise8_mmx(pix2, line_size, h);
@ -891,6 +766,8 @@ av_cold void ff_dsputilenc_init_mmx(DSPContext *c, AVCodecContext *avctx,
c->diff_pixels = ff_diff_pixels_mmx;
c->pix_sum = ff_pix_sum16_mmx;
c->pix_norm1 = ff_pix_norm1_mmx;
c->sse[0] = ff_sse16_mmx;
c->sse[1] = ff_sse8_mmx;
}
if (EXTERNAL_SSE2(cpu_flags))
@ -904,8 +781,6 @@ av_cold void ff_dsputilenc_init_mmx(DSPContext *c, AVCodecContext *avctx,
c->fdct = ff_fdct_mmx;
c->diff_bytes = diff_bytes_mmx;
c->sse[0] = sse16_mmx;
c->sse[1] = sse8_mmx;
c->vsad[4] = vsad_intra16_mmx;
c->nsse[0] = nsse16_mmx;