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https://github.com/FFmpeg/FFmpeg.git
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MMX VP3 Loop Filter
Originally committed as revision 15630 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad
parent
75083a884f
commit
357f45d9bc
@ -63,7 +63,9 @@ DECLARE_ALIGNED_8 (const uint64_t, ff_pw_255) = 0x00ff00ff00ff00ffULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_1 ) = 0x0101010101010101ULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_3 ) = 0x0303030303030303ULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_7 ) = 0x0707070707070707ULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_1F ) = 0x1F1F1F1F1F1F1F1FULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_3F ) = 0x3F3F3F3F3F3F3F3FULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_81 ) = 0x8181818181818181ULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_A1 ) = 0xA1A1A1A1A1A1A1A1ULL;
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DECLARE_ALIGNED_8 (const uint64_t, ff_pb_FC ) = 0xFCFCFCFCFCFCFCFCULL;
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@ -2591,6 +2593,11 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
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c->h263_v_loop_filter= h263_v_loop_filter_mmx;
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c->h263_h_loop_filter= h263_h_loop_filter_mmx;
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}
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if ((ENABLE_VP3_DECODER || ENABLE_THEORA_DECODER) &&
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!(avctx->flags & CODEC_FLAG_BITEXACT)) {
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c->vp3_v_loop_filter= ff_vp3_v_loop_filter_mmx;
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c->vp3_h_loop_filter= ff_vp3_h_loop_filter_mmx;
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}
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c->put_h264_chroma_pixels_tab[0]= put_h264_chroma_mc8_mmx_rnd;
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c->put_h264_chroma_pixels_tab[1]= put_h264_chroma_mc4_mmx;
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c->put_no_rnd_h264_chroma_pixels_tab[0]= put_h264_chroma_mc8_mmx_nornd;
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@ -50,7 +50,9 @@ extern const uint64_t ff_pw_255;
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extern const uint64_t ff_pb_1;
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extern const uint64_t ff_pb_3;
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extern const uint64_t ff_pb_7;
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extern const uint64_t ff_pb_1F;
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extern const uint64_t ff_pb_3F;
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extern const uint64_t ff_pb_81;
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extern const uint64_t ff_pb_A1;
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extern const uint64_t ff_pb_FC;
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@ -86,6 +88,22 @@ extern const double ff_pd_2[2];
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SBUTTERFLY(a,c,d,dq,q) /* a=aeim d=bfjn */\
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SBUTTERFLY(t,b,c,dq,q) /* t=cgko c=dhlp */
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// e,f,g,h can be memory
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// out: a,d,t,c
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#define TRANSPOSE8x4(a,b,c,d,e,f,g,h,t)\
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"punpcklbw " #e ", " #a " \n\t" /* a0 e0 a1 e1 a2 e2 a3 e3 */\
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"punpcklbw " #f ", " #b " \n\t" /* b0 f0 b1 f1 b2 f2 b3 f3 */\
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"punpcklbw " #g ", " #c " \n\t" /* c0 g0 c1 g1 c2 g2 d3 g3 */\
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"punpcklbw " #h ", " #d " \n\t" /* d0 h0 d1 h1 d2 h2 d3 h3 */\
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SBUTTERFLY(a, b, t, bw, q) /* a= a0 b0 e0 f0 a1 b1 e1 f1 */\
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/* t= a2 b2 e2 f2 a3 b3 e3 f3 */\
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SBUTTERFLY(c, d, b, bw, q) /* c= c0 d0 g0 h0 c1 d1 g1 h1 */\
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/* b= c2 d2 g2 h2 c3 d3 g3 h3 */\
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SBUTTERFLY(a, c, d, wd, q) /* a= a0 b0 c0 d0 e0 f0 g0 h0 */\
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/* d= a1 b1 c1 d1 e1 f1 g1 h1 */\
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SBUTTERFLY(t, b, c, wd, q) /* t= a2 b2 c2 d2 e2 f2 g2 h2 */\
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/* c= a3 b3 c3 d3 e3 f3 g3 h3 */
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#ifdef ARCH_X86_64
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// permutes 01234567 -> 05736421
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#define TRANSPOSE8(a,b,c,d,e,f,g,h,t)\
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@ -23,11 +23,112 @@
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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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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_mmx(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_mmx(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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@ -29,4 +29,7 @@ void ff_vp3_idct_mmx(int16_t *data);
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void ff_vp3_idct_put_mmx(uint8_t *dest, int line_size, DCTELEM *block);
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void ff_vp3_idct_add_mmx(uint8_t *dest, int line_size, DCTELEM *block);
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void ff_vp3_v_loop_filter_mmx(uint8_t *src, int stride, int *bounding_values);
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void ff_vp3_h_loop_filter_mmx(uint8_t *src, int stride, int *bounding_values);
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#endif /* AVCODEC_I386_VP3DSP_MMX_H */
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@ -229,7 +229,7 @@ typedef struct Vp3DecodeContext {
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uint16_t huffman_table[80][32][2];
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uint8_t filter_limit_values[64];
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int bounding_values_array[256];
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DECLARE_ALIGNED_8(int, bounding_values_array[256+2]);
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} Vp3DecodeContext;
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/************************************************************************
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@ -533,6 +533,7 @@ static void init_loop_filter(Vp3DecodeContext *s)
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bounding_values[x] = x;
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bounding_values[x + filter_limit] = filter_limit - x;
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}
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bounding_values[129] = bounding_values[130] = filter_limit * 0x02020202;
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}
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/*
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