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179655b6c6
full IDCT. Fix this. Originally committed as revision 23358 to svn://svn.ffmpeg.org/ffmpeg/trunk
437 lines
17 KiB
C
437 lines
17 KiB
C
/*
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* Copyright (C) 2004 the ffmpeg project
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* MMX-optimized functions cribbed from the original VP3 source code.
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*/
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#include "libavutil/x86_cpu.h"
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#include "libavcodec/dsputil.h"
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#include "dsputil_mmx.h"
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#include "vp3dsp_mmx.h"
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extern const uint16_t ff_vp3_idct_data[];
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// this is off by one or two for some cases when filter_limit is greater than 63
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// in: p0 in mm6, p1 in mm4, p2 in mm2, p3 in mm1
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// out: p1 in mm4, p2 in mm3
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#define VP3_LOOP_FILTER(flim) \
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"movq %%mm6, %%mm7 \n\t" \
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"pand "MANGLE(ff_pb_7 )", %%mm6 \n\t" /* p0&7 */ \
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"psrlw $3, %%mm7 \n\t" \
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"pand "MANGLE(ff_pb_1F)", %%mm7 \n\t" /* p0>>3 */ \
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"movq %%mm2, %%mm3 \n\t" /* mm3 = p2 */ \
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"pxor %%mm4, %%mm2 \n\t" \
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"pand "MANGLE(ff_pb_1 )", %%mm2 \n\t" /* (p2^p1)&1 */ \
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"movq %%mm2, %%mm5 \n\t" \
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"paddb %%mm2, %%mm2 \n\t" \
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"paddb %%mm5, %%mm2 \n\t" /* 3*(p2^p1)&1 */ \
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"paddb %%mm6, %%mm2 \n\t" /* extra bits lost in shifts */ \
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"pcmpeqb %%mm0, %%mm0 \n\t" \
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"pxor %%mm0, %%mm1 \n\t" /* 255 - p3 */ \
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"pavgb %%mm2, %%mm1 \n\t" /* (256 - p3 + extrabits) >> 1 */ \
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"pxor %%mm4, %%mm0 \n\t" /* 255 - p1 */ \
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"pavgb %%mm3, %%mm0 \n\t" /* (256 + p2-p1) >> 1 */ \
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"paddb "MANGLE(ff_pb_3 )", %%mm1 \n\t" \
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"pavgb %%mm0, %%mm1 \n\t" /* 128+2+( p2-p1 - p3) >> 2 */ \
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"pavgb %%mm0, %%mm1 \n\t" /* 128+1+(3*(p2-p1) - p3) >> 3 */ \
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"paddusb %%mm1, %%mm7 \n\t" /* d+128+1 */ \
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"movq "MANGLE(ff_pb_81)", %%mm6 \n\t" \
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"psubusb %%mm7, %%mm6 \n\t" \
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"psubusb "MANGLE(ff_pb_81)", %%mm7 \n\t" \
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\
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"movq "#flim", %%mm5 \n\t" \
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"pminub %%mm5, %%mm6 \n\t" \
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"pminub %%mm5, %%mm7 \n\t" \
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"movq %%mm6, %%mm0 \n\t" \
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"movq %%mm7, %%mm1 \n\t" \
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"paddb %%mm6, %%mm6 \n\t" \
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"paddb %%mm7, %%mm7 \n\t" \
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"pminub %%mm5, %%mm6 \n\t" \
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"pminub %%mm5, %%mm7 \n\t" \
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"psubb %%mm0, %%mm6 \n\t" \
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"psubb %%mm1, %%mm7 \n\t" \
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"paddusb %%mm7, %%mm4 \n\t" \
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"psubusb %%mm6, %%mm4 \n\t" \
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"psubusb %%mm7, %%mm3 \n\t" \
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"paddusb %%mm6, %%mm3 \n\t"
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#define STORE_4_WORDS(dst0, dst1, dst2, dst3, mm) \
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"movd "#mm", %0 \n\t" \
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"movw %w0, -1"#dst0" \n\t" \
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"psrlq $32, "#mm" \n\t" \
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"shr $16, %0 \n\t" \
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"movw %w0, -1"#dst1" \n\t" \
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"movd "#mm", %0 \n\t" \
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"movw %w0, -1"#dst2" \n\t" \
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"shr $16, %0 \n\t" \
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"movw %w0, -1"#dst3" \n\t"
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void ff_vp3_v_loop_filter_mmx2(uint8_t *src, int stride, int *bounding_values)
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{
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__asm__ volatile(
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"movq %0, %%mm6 \n\t"
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"movq %1, %%mm4 \n\t"
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"movq %2, %%mm2 \n\t"
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"movq %3, %%mm1 \n\t"
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VP3_LOOP_FILTER(%4)
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"movq %%mm4, %1 \n\t"
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"movq %%mm3, %2 \n\t"
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: "+m" (*(uint64_t*)(src - 2*stride)),
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"+m" (*(uint64_t*)(src - 1*stride)),
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"+m" (*(uint64_t*)(src + 0*stride)),
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"+m" (*(uint64_t*)(src + 1*stride))
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: "m"(*(uint64_t*)(bounding_values+129))
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);
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}
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void ff_vp3_h_loop_filter_mmx2(uint8_t *src, int stride, int *bounding_values)
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{
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x86_reg tmp;
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__asm__ volatile(
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"movd -2(%1), %%mm6 \n\t"
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"movd -2(%1,%3), %%mm0 \n\t"
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"movd -2(%1,%3,2), %%mm1 \n\t"
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"movd -2(%1,%4), %%mm4 \n\t"
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TRANSPOSE8x4(%%mm6, %%mm0, %%mm1, %%mm4, -2(%2), -2(%2,%3), -2(%2,%3,2), -2(%2,%4), %%mm2)
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VP3_LOOP_FILTER(%5)
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SBUTTERFLY(%%mm4, %%mm3, %%mm5, bw, q)
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STORE_4_WORDS((%1), (%1,%3), (%1,%3,2), (%1,%4), %%mm4)
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STORE_4_WORDS((%2), (%2,%3), (%2,%3,2), (%2,%4), %%mm5)
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: "=&r"(tmp)
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: "r"(src), "r"(src+4*stride), "r"((x86_reg)stride), "r"((x86_reg)3*stride),
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"m"(*(uint64_t*)(bounding_values+129))
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: "memory"
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);
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}
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/* from original comments: The Macro does IDct on 4 1-D Dcts */
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#define BeginIDCT() \
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"movq "I(3)", %%mm2 \n\t" \
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"movq "C(3)", %%mm6 \n\t" \
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"movq %%mm2, %%mm4 \n\t" \
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"movq "J(5)", %%mm7 \n\t" \
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"pmulhw %%mm6, %%mm4 \n\t" /* r4 = c3*i3 - i3 */ \
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"movq "C(5)", %%mm1 \n\t" \
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"pmulhw %%mm7, %%mm6 \n\t" /* r6 = c3*i5 - i5 */ \
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"movq %%mm1, %%mm5 \n\t" \
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"pmulhw %%mm2, %%mm1 \n\t" /* r1 = c5*i3 - i3 */ \
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"movq "I(1)", %%mm3 \n\t" \
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"pmulhw %%mm7, %%mm5 \n\t" /* r5 = c5*i5 - i5 */ \
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"movq "C(1)", %%mm0 \n\t" \
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"paddw %%mm2, %%mm4 \n\t" /* r4 = c3*i3 */ \
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"paddw %%mm7, %%mm6 \n\t" /* r6 = c3*i5 */ \
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"paddw %%mm1, %%mm2 \n\t" /* r2 = c5*i3 */ \
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"movq "J(7)", %%mm1 \n\t" \
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"paddw %%mm5, %%mm7 \n\t" /* r7 = c5*i5 */ \
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"movq %%mm0, %%mm5 \n\t" /* r5 = c1 */ \
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"pmulhw %%mm3, %%mm0 \n\t" /* r0 = c1*i1 - i1 */ \
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"paddsw %%mm7, %%mm4 \n\t" /* r4 = C = c3*i3 + c5*i5 */ \
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"pmulhw %%mm1, %%mm5 \n\t" /* r5 = c1*i7 - i7 */ \
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"movq "C(7)", %%mm7 \n\t" \
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"psubsw %%mm2, %%mm6 \n\t" /* r6 = D = c3*i5 - c5*i3 */ \
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"paddw %%mm3, %%mm0 \n\t" /* r0 = c1*i1 */ \
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"pmulhw %%mm7, %%mm3 \n\t" /* r3 = c7*i1 */ \
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"movq "I(2)", %%mm2 \n\t" \
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"pmulhw %%mm1, %%mm7 \n\t" /* r7 = c7*i7 */ \
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"paddw %%mm1, %%mm5 \n\t" /* r5 = c1*i7 */ \
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"movq %%mm2, %%mm1 \n\t" /* r1 = i2 */ \
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"pmulhw "C(2)", %%mm2 \n\t" /* r2 = c2*i2 - i2 */ \
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"psubsw %%mm5, %%mm3 \n\t" /* r3 = B = c7*i1 - c1*i7 */ \
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"movq "J(6)", %%mm5 \n\t" \
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"paddsw %%mm7, %%mm0 \n\t" /* r0 = A = c1*i1 + c7*i7 */ \
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"movq %%mm5, %%mm7 \n\t" /* r7 = i6 */ \
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"psubsw %%mm4, %%mm0 \n\t" /* r0 = A - C */ \
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"pmulhw "C(2)", %%mm5 \n\t" /* r5 = c2*i6 - i6 */ \
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"paddw %%mm1, %%mm2 \n\t" /* r2 = c2*i2 */ \
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"pmulhw "C(6)", %%mm1 \n\t" /* r1 = c6*i2 */ \
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"paddsw %%mm4, %%mm4 \n\t" /* r4 = C + C */ \
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"paddsw %%mm0, %%mm4 \n\t" /* r4 = C. = A + C */ \
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"psubsw %%mm6, %%mm3 \n\t" /* r3 = B - D */ \
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"paddw %%mm7, %%mm5 \n\t" /* r5 = c2*i6 */ \
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"paddsw %%mm6, %%mm6 \n\t" /* r6 = D + D */ \
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"pmulhw "C(6)", %%mm7 \n\t" /* r7 = c6*i6 */ \
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"paddsw %%mm3, %%mm6 \n\t" /* r6 = D. = B + D */ \
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"movq %%mm4, "I(1)"\n\t" /* save C. at I(1) */ \
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"psubsw %%mm5, %%mm1 \n\t" /* r1 = H = c6*i2 - c2*i6 */ \
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"movq "C(4)", %%mm4 \n\t" \
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"movq %%mm3, %%mm5 \n\t" /* r5 = B - D */ \
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"pmulhw %%mm4, %%mm3 \n\t" /* r3 = (c4 - 1) * (B - D) */ \
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"paddsw %%mm2, %%mm7 \n\t" /* r3 = (c4 - 1) * (B - D) */ \
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"movq %%mm6, "I(2)"\n\t" /* save D. at I(2) */ \
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"movq %%mm0, %%mm2 \n\t" /* r2 = A - C */ \
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"movq "I(0)", %%mm6 \n\t" \
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"pmulhw %%mm4, %%mm0 \n\t" /* r0 = (c4 - 1) * (A - C) */ \
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"paddw %%mm3, %%mm5 \n\t" /* r5 = B. = c4 * (B - D) */ \
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"movq "J(4)", %%mm3 \n\t" \
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"psubsw %%mm1, %%mm5 \n\t" /* r5 = B.. = B. - H */ \
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"paddw %%mm0, %%mm2 \n\t" /* r0 = A. = c4 * (A - C) */ \
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"psubsw %%mm3, %%mm6 \n\t" /* r6 = i0 - i4 */ \
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"movq %%mm6, %%mm0 \n\t" \
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"pmulhw %%mm4, %%mm6 \n\t" /* r6 = (c4 - 1) * (i0 - i4) */ \
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"paddsw %%mm3, %%mm3 \n\t" /* r3 = i4 + i4 */ \
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"paddsw %%mm1, %%mm1 \n\t" /* r1 = H + H */ \
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"paddsw %%mm0, %%mm3 \n\t" /* r3 = i0 + i4 */ \
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"paddsw %%mm5, %%mm1 \n\t" /* r1 = H. = B + H */ \
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"pmulhw %%mm3, %%mm4 \n\t" /* r4 = (c4 - 1) * (i0 + i4) */ \
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"paddsw %%mm0, %%mm6 \n\t" /* r6 = F = c4 * (i0 - i4) */ \
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"psubsw %%mm2, %%mm6 \n\t" /* r6 = F. = F - A. */ \
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"paddsw %%mm2, %%mm2 \n\t" /* r2 = A. + A. */ \
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"movq "I(1)", %%mm0 \n\t" /* r0 = C. */ \
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"paddsw %%mm6, %%mm2 \n\t" /* r2 = A.. = F + A. */ \
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"paddw %%mm3, %%mm4 \n\t" /* r4 = E = c4 * (i0 + i4) */ \
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"psubsw %%mm1, %%mm2 \n\t" /* r2 = R2 = A.. - H. */
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/* RowIDCT gets ready to transpose */
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#define RowIDCT() \
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BeginIDCT() \
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"movq "I(2)", %%mm3 \n\t" /* r3 = D. */ \
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"psubsw %%mm7, %%mm4 \n\t" /* r4 = E. = E - G */ \
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"paddsw %%mm1, %%mm1 \n\t" /* r1 = H. + H. */ \
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"paddsw %%mm7, %%mm7 \n\t" /* r7 = G + G */ \
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"paddsw %%mm2, %%mm1 \n\t" /* r1 = R1 = A.. + H. */ \
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"paddsw %%mm4, %%mm7 \n\t" /* r1 = R1 = A.. + H. */ \
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"psubsw %%mm3, %%mm4 \n\t" /* r4 = R4 = E. - D. */ \
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"paddsw %%mm3, %%mm3 \n\t" \
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"psubsw %%mm5, %%mm6 \n\t" /* r6 = R6 = F. - B.. */ \
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"paddsw %%mm5, %%mm5 \n\t" \
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"paddsw %%mm4, %%mm3 \n\t" /* r3 = R3 = E. + D. */ \
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"paddsw %%mm6, %%mm5 \n\t" /* r5 = R5 = F. + B.. */ \
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"psubsw %%mm0, %%mm7 \n\t" /* r7 = R7 = G. - C. */ \
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"paddsw %%mm0, %%mm0 \n\t" \
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"movq %%mm1, "I(1)"\n\t" /* save R1 */ \
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"paddsw %%mm7, %%mm0 \n\t" /* r0 = R0 = G. + C. */
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/* Column IDCT normalizes and stores final results */
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#define ColumnIDCT() \
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BeginIDCT() \
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"paddsw "OC_8", %%mm2 \n\t" /* adjust R2 (and R1) for shift */ \
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"paddsw %%mm1, %%mm1 \n\t" /* r1 = H. + H. */ \
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"paddsw %%mm2, %%mm1 \n\t" /* r1 = R1 = A.. + H. */ \
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"psraw $4, %%mm2 \n\t" /* r2 = NR2 */ \
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"psubsw %%mm7, %%mm4 \n\t" /* r4 = E. = E - G */ \
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"psraw $4, %%mm1 \n\t" /* r1 = NR1 */ \
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"movq "I(2)", %%mm3 \n\t" /* r3 = D. */ \
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"paddsw %%mm7, %%mm7 \n\t" /* r7 = G + G */ \
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"movq %%mm2, "I(2)"\n\t" /* store NR2 at I2 */ \
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"paddsw %%mm4, %%mm7 \n\t" /* r7 = G. = E + G */ \
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"movq %%mm1, "I(1)"\n\t" /* store NR1 at I1 */ \
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"psubsw %%mm3, %%mm4 \n\t" /* r4 = R4 = E. - D. */ \
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"paddsw "OC_8", %%mm4 \n\t" /* adjust R4 (and R3) for shift */ \
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"paddsw %%mm3, %%mm3 \n\t" /* r3 = D. + D. */ \
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"paddsw %%mm4, %%mm3 \n\t" /* r3 = R3 = E. + D. */ \
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"psraw $4, %%mm4 \n\t" /* r4 = NR4 */ \
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"psubsw %%mm5, %%mm6 \n\t" /* r6 = R6 = F. - B.. */ \
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"psraw $4, %%mm3 \n\t" /* r3 = NR3 */ \
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"paddsw "OC_8", %%mm6 \n\t" /* adjust R6 (and R5) for shift */ \
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"paddsw %%mm5, %%mm5 \n\t" /* r5 = B.. + B.. */ \
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"paddsw %%mm6, %%mm5 \n\t" /* r5 = R5 = F. + B.. */ \
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"psraw $4, %%mm6 \n\t" /* r6 = NR6 */ \
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"movq %%mm4, "J(4)"\n\t" /* store NR4 at J4 */ \
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"psraw $4, %%mm5 \n\t" /* r5 = NR5 */ \
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"movq %%mm3, "I(3)"\n\t" /* store NR3 at I3 */ \
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"psubsw %%mm0, %%mm7 \n\t" /* r7 = R7 = G. - C. */ \
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"paddsw "OC_8", %%mm7 \n\t" /* adjust R7 (and R0) for shift */ \
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"paddsw %%mm0, %%mm0 \n\t" /* r0 = C. + C. */ \
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"paddsw %%mm7, %%mm0 \n\t" /* r0 = R0 = G. + C. */ \
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"psraw $4, %%mm7 \n\t" /* r7 = NR7 */ \
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"movq %%mm6, "J(6)"\n\t" /* store NR6 at J6 */ \
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"psraw $4, %%mm0 \n\t" /* r0 = NR0 */ \
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"movq %%mm5, "J(5)"\n\t" /* store NR5 at J5 */ \
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"movq %%mm7, "J(7)"\n\t" /* store NR7 at J7 */ \
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"movq %%mm0, "I(0)"\n\t" /* store NR0 at I0 */
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/* Following macro does two 4x4 transposes in place.
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At entry (we assume):
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r0 = a3 a2 a1 a0
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I(1) = b3 b2 b1 b0
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r2 = c3 c2 c1 c0
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r3 = d3 d2 d1 d0
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r4 = e3 e2 e1 e0
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r5 = f3 f2 f1 f0
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r6 = g3 g2 g1 g0
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r7 = h3 h2 h1 h0
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At exit, we have:
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I(0) = d0 c0 b0 a0
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I(1) = d1 c1 b1 a1
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I(2) = d2 c2 b2 a2
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I(3) = d3 c3 b3 a3
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J(4) = h0 g0 f0 e0
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J(5) = h1 g1 f1 e1
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J(6) = h2 g2 f2 e2
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J(7) = h3 g3 f3 e3
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I(0) I(1) I(2) I(3) is the transpose of r0 I(1) r2 r3.
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J(4) J(5) J(6) J(7) is the transpose of r4 r5 r6 r7.
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Since r1 is free at entry, we calculate the Js first. */
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#define Transpose() \
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"movq %%mm4, %%mm1 \n\t" /* r1 = e3 e2 e1 e0 */ \
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"punpcklwd %%mm5, %%mm4 \n\t" /* r4 = f1 e1 f0 e0 */ \
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"movq %%mm0, "I(0)"\n\t" /* save a3 a2 a1 a0 */ \
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"punpckhwd %%mm5, %%mm1 \n\t" /* r1 = f3 e3 f2 e2 */ \
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"movq %%mm6, %%mm0 \n\t" /* r0 = g3 g2 g1 g0 */ \
|
|
"punpcklwd %%mm7, %%mm6 \n\t" /* r6 = h1 g1 h0 g0 */ \
|
|
"movq %%mm4, %%mm5 \n\t" /* r5 = f1 e1 f0 e0 */ \
|
|
"punpckldq %%mm6, %%mm4 \n\t" /* r4 = h0 g0 f0 e0 = R4 */ \
|
|
"punpckhdq %%mm6, %%mm5 \n\t" /* r5 = h1 g1 f1 e1 = R5 */ \
|
|
"movq %%mm1, %%mm6 \n\t" /* r6 = f3 e3 f2 e2 */ \
|
|
"movq %%mm4, "J(4)"\n\t" \
|
|
"punpckhwd %%mm7, %%mm0 \n\t" /* r0 = h3 g3 h2 g2 */ \
|
|
"movq %%mm5, "J(5)"\n\t" \
|
|
"punpckhdq %%mm0, %%mm6 \n\t" /* r6 = h3 g3 f3 e3 = R7 */ \
|
|
"movq "I(0)", %%mm4 \n\t" /* r4 = a3 a2 a1 a0 */ \
|
|
"punpckldq %%mm0, %%mm1 \n\t" /* r1 = h2 g2 f2 e2 = R6 */ \
|
|
"movq "I(1)", %%mm5 \n\t" /* r5 = b3 b2 b1 b0 */ \
|
|
"movq %%mm4, %%mm0 \n\t" /* r0 = a3 a2 a1 a0 */ \
|
|
"movq %%mm6, "J(7)"\n\t" \
|
|
"punpcklwd %%mm5, %%mm0 \n\t" /* r0 = b1 a1 b0 a0 */ \
|
|
"movq %%mm1, "J(6)"\n\t" \
|
|
"punpckhwd %%mm5, %%mm4 \n\t" /* r4 = b3 a3 b2 a2 */ \
|
|
"movq %%mm2, %%mm5 \n\t" /* r5 = c3 c2 c1 c0 */ \
|
|
"punpcklwd %%mm3, %%mm2 \n\t" /* r2 = d1 c1 d0 c0 */ \
|
|
"movq %%mm0, %%mm1 \n\t" /* r1 = b1 a1 b0 a0 */ \
|
|
"punpckldq %%mm2, %%mm0 \n\t" /* r0 = d0 c0 b0 a0 = R0 */ \
|
|
"punpckhdq %%mm2, %%mm1 \n\t" /* r1 = d1 c1 b1 a1 = R1 */ \
|
|
"movq %%mm4, %%mm2 \n\t" /* r2 = b3 a3 b2 a2 */ \
|
|
"movq %%mm0, "I(0)"\n\t" \
|
|
"punpckhwd %%mm3, %%mm5 \n\t" /* r5 = d3 c3 d2 c2 */ \
|
|
"movq %%mm1, "I(1)"\n\t" \
|
|
"punpckhdq %%mm5, %%mm4 \n\t" /* r4 = d3 c3 b3 a3 = R3 */ \
|
|
"punpckldq %%mm5, %%mm2 \n\t" /* r2 = d2 c2 b2 a2 = R2 */ \
|
|
"movq %%mm4, "I(3)"\n\t" \
|
|
"movq %%mm2, "I(2)"\n\t"
|
|
|
|
void ff_vp3_idct_mmx(int16_t *output_data)
|
|
{
|
|
/* eax = quantized input
|
|
* ebx = dequantizer matrix
|
|
* ecx = IDCT constants
|
|
* M(I) = ecx + MaskOffset(0) + I * 8
|
|
* C(I) = ecx + CosineOffset(32) + (I-1) * 8
|
|
* edx = output
|
|
* r0..r7 = mm0..mm7
|
|
*/
|
|
|
|
#define C(x) AV_STRINGIFY(16*(x-1))"(%1)"
|
|
#define OC_8 "%2"
|
|
|
|
/* at this point, function has completed dequantization + dezigzag +
|
|
* partial transposition; now do the idct itself */
|
|
#define I(x) AV_STRINGIFY(16* x )"(%0)"
|
|
#define J(x) AV_STRINGIFY(16*(x-4) + 8)"(%0)"
|
|
|
|
__asm__ volatile (
|
|
RowIDCT()
|
|
Transpose()
|
|
|
|
#undef I
|
|
#undef J
|
|
#define I(x) AV_STRINGIFY(16* x + 64)"(%0)"
|
|
#define J(x) AV_STRINGIFY(16*(x-4) + 72)"(%0)"
|
|
|
|
RowIDCT()
|
|
Transpose()
|
|
|
|
#undef I
|
|
#undef J
|
|
#define I(x) AV_STRINGIFY(16*x)"(%0)"
|
|
#define J(x) AV_STRINGIFY(16*x)"(%0)"
|
|
|
|
ColumnIDCT()
|
|
|
|
#undef I
|
|
#undef J
|
|
#define I(x) AV_STRINGIFY(16*x + 8)"(%0)"
|
|
#define J(x) AV_STRINGIFY(16*x + 8)"(%0)"
|
|
|
|
ColumnIDCT()
|
|
:: "r"(output_data), "r"(ff_vp3_idct_data), "m"(ff_pw_8)
|
|
);
|
|
#undef I
|
|
#undef J
|
|
|
|
}
|
|
|
|
void ff_vp3_idct_put_mmx(uint8_t *dest, int line_size, DCTELEM *block)
|
|
{
|
|
ff_vp3_idct_mmx(block);
|
|
put_signed_pixels_clamped_mmx(block, dest, line_size);
|
|
}
|
|
|
|
void ff_vp3_idct_add_mmx(uint8_t *dest, int line_size, DCTELEM *block)
|
|
{
|
|
ff_vp3_idct_mmx(block);
|
|
add_pixels_clamped_mmx(block, dest, line_size);
|
|
}
|
|
|
|
void ff_vp3_idct_dc_add_mmx2(uint8_t *dest, int linesize, const DCTELEM *block)
|
|
{
|
|
int dc = (block[0] + 15) >> 5;
|
|
|
|
__asm__ volatile(
|
|
"movd %3, %%mm0 \n\t"
|
|
"pshufw $0, %%mm0, %%mm0 \n\t"
|
|
"pxor %%mm1, %%mm1 \n\t"
|
|
"psubw %%mm0, %%mm1 \n\t"
|
|
"packuswb %%mm0, %%mm0 \n\t"
|
|
"packuswb %%mm1, %%mm1 \n\t"
|
|
|
|
#define DC_ADD \
|
|
"movq (%0), %%mm2 \n\t" \
|
|
"movq (%0,%1), %%mm3 \n\t" \
|
|
"paddusb %%mm0, %%mm2 \n\t" \
|
|
"movq (%0,%1,2), %%mm4 \n\t" \
|
|
"paddusb %%mm0, %%mm3 \n\t" \
|
|
"movq (%0,%2), %%mm5 \n\t" \
|
|
"paddusb %%mm0, %%mm4 \n\t" \
|
|
"paddusb %%mm0, %%mm5 \n\t" \
|
|
"psubusb %%mm1, %%mm2 \n\t" \
|
|
"psubusb %%mm1, %%mm3 \n\t" \
|
|
"movq %%mm2, (%0) \n\t" \
|
|
"psubusb %%mm1, %%mm4 \n\t" \
|
|
"movq %%mm3, (%0,%1) \n\t" \
|
|
"psubusb %%mm1, %%mm5 \n\t" \
|
|
"movq %%mm4, (%0,%1,2) \n\t" \
|
|
"movq %%mm5, (%0,%2) \n\t"
|
|
|
|
DC_ADD
|
|
"lea (%0,%1,4), %0 \n\t"
|
|
DC_ADD
|
|
|
|
: "+r"(dest)
|
|
: "r"((x86_reg)linesize), "r"((x86_reg)3*linesize), "r"(dc)
|
|
);
|
|
}
|