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[Processing/x86] Add an SSSE3 implementation of GeneralBilinearFastDownsample

Keep track of relative pixel offsets and utilize pshufb to efficiently extract relevant pixels for horizontal scaling ratios <= 4. Fall back to a generic approach for ratios > 4. Note that the generic approach can be backported to SSE2. The implementation assumes that data beyond the end of each line, before the next line begins, can be dirtied; which AFAICT is safe with the current usage of these routines. Speedup is ~6.67x/~3.26x (32-bit/64-bit) for horizontal ratios <= 2, ~6.24x/~3.00x for ratios within (2, 4], and ~4.89x/~2.17x for ratios > 4 when not memory-bound on Haswell as compared with the current SSE2 implementation.

Sindre Aamås committed 10 years ago

Commit 1995e031 parent cbaf0876 files · +535 −0Browse files

Showing the changes to codec/processing (4 of 6 files). Show all

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4 files
  1. codec/processing/src/downsample/downsample.cpp +1 −0
  2. codec/processing/src/downsample/downsample.h +4 −0
  3. codec/processing/src/downsample/downsamplefuncs.cpp +1 −0
  4. codec/processing/src/x86/downsample_bilinear.asm +521 −0
codec/processing/src/downsample/downsample.cpp+1−0
@@ -100,6 +100,7 @@ void CDownsampling::InitDownsampleFuncs (SDownsampleFuncs& sDownsampleFunc, int · 99 unmodified lines
100100 sDownsampleFunc.pfHalfAverage[1] = DyadicBilinearDownsamplerWidthx16_ssse3;
101101 sDownsampleFunc.pfOneThirdDownsampler = DyadicBilinearOneThirdDownsampler_ssse3;
102102 sDownsampleFunc.pfQuarterDownsampler = DyadicBilinearQuarterDownsampler_ssse3;
103+ sDownsampleFunc.pfGeneralRatioLuma = GeneralBilinearFastDownsamplerWrap_ssse3;
103104 }
104105 if (iCpuFlag & WELS_CPU_SSE41) {
105106 sDownsampleFunc.pfHalfAverage[0] = DyadicBilinearDownsamplerWidthx32_sse4;
codec/processing/src/downsample/downsample.h+4−0
@@ -101,6 +101,7 @@ HalveDownsampleFunc DyadicBilinearDownsamplerWidthx32_sse4; · 100 unmodified lines
101101
102102 GeneralDownsampleFunc GeneralBilinearFastDownsamplerWrap_sse2;
103103 GeneralDownsampleFunc GeneralBilinearAccurateDownsamplerWrap_sse2;
104+GeneralDownsampleFunc GeneralBilinearFastDownsamplerWrap_ssse3;
104105
105106 SpecificDownsampleFunc DyadicBilinearOneThirdDownsampler_ssse3;
106107 SpecificDownsampleFunc DyadicBilinearOneThirdDownsampler_sse4;
@@ -114,6 +115,9 @@ void GeneralBilinearFastDownsampler_sse2 (uint8_t* pDst, const int32_t kiDstStri · 7 unmodified lines
114115 void GeneralBilinearAccurateDownsampler_sse2 (uint8_t* pDst, const int32_t kiDstStride, const int32_t kiDstWidth,
115116 const int32_t kiDstHeight, uint8_t* pSrc, const int32_t kiSrcStride, const uint32_t kuiScaleX,
116117 const uint32_t kuiScaleY);
118+void GeneralBilinearFastDownsampler_ssse3 (uint8_t* pDst, int32_t iDstStride, int32_t iDstWidth,
119+ int32_t iDstHeight, uint8_t* pSrc, int32_t iSrcStride, uint32_t uiScaleX,
120+ uint32_t uiScaleY);
117121
118122 WELSVP_EXTERN_C_END
119123 #endif
codec/processing/src/downsample/downsamplefuncs.cpp+1−0
@@ -282,6 +282,7 @@ static void GeneralBilinearDownsamplerWrap (uint8_t* pDst, const int32_t kiDstSt · 281 unmodified lines
282282 #ifdef X86_ASM
283283 DEFINE_GENERAL_BILINEAR_FAST_DOWNSAMPLER_WRAP (sse2)
284284 DEFINE_GENERAL_BILINEAR_ACCURATE_DOWNSAMPLER_WRAP (sse2)
285+DEFINE_GENERAL_BILINEAR_FAST_DOWNSAMPLER_WRAP (ssse3)
285286 #endif //X86_ASM
286287
287288 #ifdef HAVE_NEON
codec/processing/src/x86/downsample_bilinear.asm+521−0
@@ -60,6 +60,16 @@ SECTION .rodata align=16 · 59 unmodified lines
6060 ;***********************************************************************
6161
6262 ALIGN 16
63+db80h_128:
64+ times 16 db 80h
65+shufb_0000000088888888:
66+ times 8 db 0
67+ times 8 db 8
68+shufb_000044448888CCCC:
69+ times 4 db 0
70+ times 4 db 4
71+ times 4 db 8
72+ times 4 db 12
6373 shufb_mask_low:
6474 db 00h, 80h, 02h, 80h, 04h, 80h, 06h, 80h, 08h, 80h, 0ah, 80h, 0ch, 80h, 0eh, 80h
6575 shufb_mask_high:
@@ -2595,3 +2605,514 @@ WELS_EXTERN DyadicBilinearQuarterDownsampler_sse4 · 2529 unmodified lines
25952605 %endif
25962606 ret
25972607
2608+; xpos_int=%1 xpos_frac=%2 inc_int+1=%3 inc_frac=%4 tmp=%5
2609+%macro SSE2_BilinearIncXposuw 5
2610+ movdqa %5, %2
2611+ paddw %2, %4
2612+ paddusw %5, %4
2613+ pcmpeqw %5, %2
2614+ paddb %1, %3
2615+ paddb %1, %5 ; subtract 1 if no carry
2616+%endmacro
2617+
2618+; outl=%1 outh=%2 in=%3
2619+%macro SSE2_UnpckXFracuw 3
2620+ pcmpeqw %1, %1
2621+ pxor %1, %3
2622+ movdqa %2, %1
2623+ punpcklwd %1, %3
2624+ punpckhwd %2, %3
2625+%endmacro
2626+
2627+; [in:xfrac out:xyfrac0]=%1 [out:xyfrac1]=%2 yfrac0=%3 yfrac1=%4
2628+%macro SSE2_BilinearFastCalcXYFrac 4
2629+ movdqa %2, %1
2630+ pmulhuw %1, %3
2631+ pmulhuw %2, %4
2632+%endmacro
2633+
2634+; [in:dwordsl out:bytes] dwordsh=%2 zero=%3
2635+%macro SSE2_BilinearFastPackDwordsToBytes 3
2636+ psrld %1, 14
2637+ psrld %2, 14
2638+ packssdw %1, %2
2639+ pavgw %1, %3
2640+ packuswb %1, %1
2641+%endmacro
2642+
2643+%macro SSSE3_BilinearFastDownsample2xOrLess_8px 0
2644+ movdqa xmm_tmp0, xmm_xpos_int
2645+ pshufb xmm_tmp0, xmm_0
2646+ psubb xmm_xpos_int, xmm_tmp0
2647+ SSE2_UnpckXFracuw xmm_tmp0, xmm_tmp1, xmm_xpos_frac
2648+ mov r_tmp0, i_xpos
2649+ lea i_xpos, [i_xpos + 8 * i_scalex]
2650+ shr r_tmp0, 16
2651+ movdqu xmm_tmp4, [p_src_row0 + r_tmp0]
2652+ pshufb xmm_tmp4, xmm_xpos_int
2653+ movdqa xmm_tmp5, xmm_tmp4
2654+ punpcklbw xmm_tmp4, xmm_0
2655+ punpckhbw xmm_tmp5, xmm_0
2656+ SSE2_BilinearFastCalcXYFrac xmm_tmp0, xmm_tmp2, xmm_yfrac0, xmm_yfrac1
2657+ SSE2_BilinearFastCalcXYFrac xmm_tmp1, xmm_tmp3, xmm_yfrac0, xmm_yfrac1
2658+ pmaddwd xmm_tmp0, xmm_tmp4
2659+ pmaddwd xmm_tmp1, xmm_tmp5
2660+ movdqu xmm_tmp4, [p_src_row1 + r_tmp0]
2661+ pshufb xmm_tmp4, xmm_xpos_int
2662+ movdqa xmm_tmp5, xmm_tmp4
2663+ punpcklbw xmm_tmp4, xmm_0
2664+ punpckhbw xmm_tmp5, xmm_0
2665+ pmaddwd xmm_tmp2, xmm_tmp4
2666+ pmaddwd xmm_tmp3, xmm_tmp5
2667+ paddd xmm_tmp0, xmm_tmp2
2668+ paddd xmm_tmp1, xmm_tmp3
2669+ SSE2_BilinearFastPackDwordsToBytes xmm_tmp0, xmm_tmp1, xmm_0
2670+ movlps [p_dst], xmm_tmp0
2671+ add p_dst, 8
2672+ SSE2_BilinearIncXposuw xmm_xpos_int, xmm_xpos_frac, xmm_xpos_int_inc, xmm_xpos_frac_inc, xmm_tmp0
2673+%endmacro
2674+
2675+%macro SSSE3_BilinearFastDownsample4xOrLess_8px 0
2676+ movdqa xmm_tmp0, xmm_xpos_int
2677+ pshufb xmm_tmp0, [shufb_0000000088888888]
2678+ psubb xmm_xpos_int, xmm_tmp0
2679+ SSE2_UnpckXFracuw xmm_tmp0, xmm_tmp1, xmm_xpos_frac
2680+ mov r_tmp0, i_xpos
2681+ shr r_tmp0, 16
2682+ movdqu xmm_tmp3, [p_src_row0 + r_tmp0]
2683+ movdqu xmm_tmp4, [p_src_row1 + r_tmp0]
2684+ movdqa xmm_tmp2, xmm_xpos_int
2685+ punpcklbw xmm_tmp2, [db80h_128]
2686+ pshufb xmm_tmp3, xmm_tmp2
2687+ pshufb xmm_tmp4, xmm_tmp2
2688+ SSE2_BilinearFastCalcXYFrac xmm_tmp0, xmm_tmp2, xmm_yfrac0, xmm_yfrac1
2689+ pmaddwd xmm_tmp0, xmm_tmp3
2690+ pmaddwd xmm_tmp2, xmm_tmp4
2691+ paddd xmm_tmp0, xmm_tmp2
2692+ lea r_tmp0, [i_xpos + 4 * i_scalex]
2693+ lea i_xpos, [i_xpos + 8 * i_scalex]
2694+ shr r_tmp0, 16
2695+ movdqu xmm_tmp3, [p_src_row0 + r_tmp0]
2696+ movdqu xmm_tmp4, [p_src_row1 + r_tmp0]
2697+ movdqa xmm_tmp2, xmm_xpos_int
2698+ punpckhbw xmm_tmp2, [db80h_128]
2699+ pshufb xmm_tmp3, xmm_tmp2
2700+ pshufb xmm_tmp4, xmm_tmp2
2701+ SSE2_BilinearFastCalcXYFrac xmm_tmp1, xmm_tmp2, xmm_yfrac0, xmm_yfrac1
2702+ pmaddwd xmm_tmp1, xmm_tmp3
2703+ pmaddwd xmm_tmp2, xmm_tmp4
2704+ paddd xmm_tmp1, xmm_tmp2
2705+ SSE2_BilinearFastPackDwordsToBytes xmm_tmp0, xmm_tmp1, xmm_0
2706+ movlps [p_dst], xmm_tmp0
2707+ add p_dst, 8
2708+ SSE2_BilinearIncXposuw xmm_xpos_int, xmm_xpos_frac, xmm_xpos_int_inc, xmm_xpos_frac_inc, xmm_tmp0
2709+%endmacro
2710+
2711+%macro SSE2_GeneralBilinearFastDownsample_8px 0
2712+ mov r_tmp0, i_xpos
2713+ shr r_tmp0, 16
2714+ movd xmm_tmp3, [p_src_row0 + r_tmp0]
2715+ movd xmm_tmp4, [p_src_row1 + r_tmp0]
2716+ lea r_tmp0, [i_xpos + i_scalex]
2717+ shr r_tmp0, 16
2718+ pinsrw xmm_tmp3, [p_src_row0 + r_tmp0], 1
2719+ pinsrw xmm_tmp4, [p_src_row1 + r_tmp0], 1
2720+ lea r_tmp0, [i_xpos + 2 * i_scalex]
2721+ lea i_xpos, [i_xpos + 4 * i_scalex]
2722+ shr r_tmp0, 16
2723+ pinsrw xmm_tmp3, [p_src_row0 + r_tmp0], 2
2724+ pinsrw xmm_tmp4, [p_src_row1 + r_tmp0], 2
2725+ mov r_tmp0, i_xpos
2726+ sub r_tmp0, i_scalex
2727+ shr r_tmp0, 16
2728+ pinsrw xmm_tmp3, [p_src_row0 + r_tmp0], 3
2729+ pinsrw xmm_tmp4, [p_src_row1 + r_tmp0], 3
2730+ punpcklbw xmm_tmp3, xmm_0
2731+ punpcklbw xmm_tmp4, xmm_0
2732+ movdqa xmm_tmp0, xmm_xfrac0
2733+ SSE2_BilinearFastCalcXYFrac xmm_tmp0, xmm_tmp2, xmm_yfrac0, xmm_yfrac1
2734+ pmaddwd xmm_tmp0, xmm_tmp3
2735+ pmaddwd xmm_tmp2, xmm_tmp4
2736+ paddd xmm_tmp0, xmm_tmp2
2737+ mov r_tmp0, i_xpos
2738+ shr r_tmp0, 16
2739+ movd xmm_tmp3, [p_src_row0 + r_tmp0]
2740+ movd xmm_tmp4, [p_src_row1 + r_tmp0]
2741+ lea r_tmp0, [i_xpos + i_scalex]
2742+ shr r_tmp0, 16
2743+ pinsrw xmm_tmp3, [p_src_row0 + r_tmp0], 1
2744+ pinsrw xmm_tmp4, [p_src_row1 + r_tmp0], 1
2745+ lea r_tmp0, [i_xpos + 2 * i_scalex]
2746+ lea i_xpos, [i_xpos + 4 * i_scalex]
2747+ shr r_tmp0, 16
2748+ pinsrw xmm_tmp3, [p_src_row0 + r_tmp0], 2
2749+ pinsrw xmm_tmp4, [p_src_row1 + r_tmp0], 2
2750+ mov r_tmp0, i_xpos
2751+ sub r_tmp0, i_scalex
2752+ shr r_tmp0, 16
2753+ pinsrw xmm_tmp3, [p_src_row0 + r_tmp0], 3
2754+ pinsrw xmm_tmp4, [p_src_row1 + r_tmp0], 3
2755+ punpcklbw xmm_tmp3, xmm_0
2756+ punpcklbw xmm_tmp4, xmm_0
2757+ movdqa xmm_tmp1, xmm_xfrac1
2758+ SSE2_BilinearFastCalcXYFrac xmm_tmp1, xmm_tmp2, xmm_yfrac0, xmm_yfrac1
2759+ pmaddwd xmm_tmp1, xmm_tmp3
2760+ pmaddwd xmm_tmp2, xmm_tmp4
2761+ paddd xmm_tmp1, xmm_tmp2
2762+ SSE2_BilinearFastPackDwordsToBytes xmm_tmp0, xmm_tmp1, xmm_0
2763+ movlps [p_dst], xmm_tmp0
2764+ add p_dst, 8
2765+ paddw xmm_xfrac0, xmm_xfrac_inc
2766+ paddw xmm_xfrac1, xmm_xfrac_inc
2767+%endmacro
2768+
2769+; downsample_8px_macro=%1 b_fast=%2
2770+%macro SSE2_GeneralBilinearDownsampler_loop 2
2771+%%height:
2772+ mov p_src_row0, i_ypos
2773+ shr p_src_row0, 15
2774+ imul p_src_row0, i_src_stride
2775+ add p_src_row0, p_src
2776+ mov p_src_row1, p_src_row0
2777+ add p_src_row1, i_src_stride
2778+ movd xmm_tmp1, i_yposd
2779+%if %2
2780+ pshuflw xmm_tmp1, xmm_tmp1, 0
2781+ psllw xmm_tmp1, 1
2782+ psrlw xmm_tmp1, 1
2783+%else
2784+ pslld xmm_tmp1, 17
2785+ psrld xmm_tmp1, 17
2786+%endif
2787+%ifdef X86_32
2788+ pshufd xmm_tmp1, xmm_tmp1, 0
2789+ pcmpeqw xmm_tmp0, xmm_tmp0
2790+%if %2
2791+ psrlw xmm_tmp0, 1
2792+%else
2793+ psrld xmm_tmp0, 17
2794+%endif
2795+ pxor xmm_tmp0, xmm_tmp1
2796+ movdqa xmm_yfrac0, xmm_tmp0
2797+ movdqa xmm_yfrac1, xmm_tmp1
2798+%else
2799+ pshufd xmm_yfrac1, xmm_tmp1, 0
2800+ pcmpeqw xmm_yfrac0, xmm_yfrac0
2801+%if %2
2802+ psrlw xmm_yfrac0, 1
2803+%else
2804+ psrld xmm_yfrac0, 17
2805+%endif
2806+ pxor xmm_yfrac0, xmm_yfrac1
2807+%endif
2808+
2809+ mov i_xpos, 1 << 15
2810+ mov i_width_cnt, i_dst_width
2811+ sub i_width_cnt, 1
2812+
2813+%ifdef xmm_xpos_int
2814+ movdqa xmm_xpos_int, xmm_xpos_int_begin
2815+ movdqa xmm_xpos_frac, xmm_xpos_frac_begin
2816+%else
2817+ movdqa xmm_xfrac0, xmm_xfrac0_begin
2818+ movdqa xmm_xfrac1, xmm_xfrac1_begin
2819+%endif
2820+
2821+%%width:
2822+ %1
2823+ sub i_width_cnt, 8
2824+ jg %%width
2825+
2826+ lea p_dst, [p_dst + i_width_cnt + 1]
2827+ imul i_width_cnt, i_scalex
2828+ add i_xpos, i_width_cnt
2829+ shr i_xpos, 16
2830+ movzx r_tmp0, byte [p_src_row0 + i_xpos]
2831+ mov [p_dst - 1], r_tmp0b
2832+%ifdef X86_32
2833+ mov r_tmp0, i_scaleyd
2834+ add i_yposd, r_tmp0
2835+%else
2836+ add i_yposd, i_scaleyd
2837+%endif
2838+ add p_dst, i_dst_stride_less_width
2839+ sub i_dst_height, 1
2840+ jg %%height
2841+%endmacro
2842+
2843+;**************************************************************************************************************
2844+;void GeneralBilinearFastDownsampler_ssse3 (uint8_t* pDst, int32_t iDstStride, int32_t iDstWidth,
2845+; int32_t iDstHeight, uint8_t* pSrc, int32_t iSrcStride, uint32_t uiScaleX,
2846+; uint32_t uiScaleY);
2847+;
2848+;**************************************************************************************************************
2849+
2850+WELS_EXTERN GeneralBilinearFastDownsampler_ssse3
2851+ %assign push_num 0
2852+%ifndef X86_32
2853+ push r12
2854+ push r13
2855+ push rbx
2856+ push rbp
2857+ %assign push_num 4
2858+%ifdef WIN64
2859+ push rdi
2860+ push rsi
2861+ %assign push_num push_num + 2
2862+%endif
2863+%endif
2864+ LOAD_7_PARA
2865+ PUSH_XMM 16
2866+ SIGN_EXTENSION r1, r1d
2867+ SIGN_EXTENSION r2, r2d
2868+ SIGN_EXTENSION r3, r3d
2869+ SIGN_EXTENSION r5, r5d
2870+ ZERO_EXTENSION r6d
2871+ sub r1, r2 ; dst_stride - dst_width
2872+%ifdef X86_32
2873+ movd xmm0, arg8
2874+ movd xmm1, esp
2875+ and esp, -16
2876+ sub esp, 8 * 4 + 7 * 16
2877+ movd [esp], xmm1
2878+ %define p_dst r0
2879+ %define i_dst_stride_less_width [esp + 1 * 4]
2880+ %define i_dst_width [esp + 2 * 4]
2881+ %define i_dst_height dword [esp + 3 * 4]
2882+ %define p_src [esp + 4 * 4]
2883+ %define i_src_stride [esp + 5 * 4]
2884+ %define i_scalex r6
2885+ %define i_scalexd r6d
2886+ %define i_scaleyd [esp + 6 * 4]
2887+ %define i_xpos r2
2888+ %define i_ypos dword [esp + 7 * 4]
2889+ %define i_yposd dword [esp + 7 * 4]
2890+ %define p_src_row0 r3
2891+ %define p_src_row1 r4
2892+ %define i_width_cnt r5
2893+ %define r_tmp0 r1
2894+ %define r_tmp0b r1b
2895+ %define xmm_xpos_frac xmm1
2896+ %define xmm_xpos_frac_inc [esp + 8 * 4]
2897+ %define xmm_xpos_int xmm3
2898+ %define xmm_xpos_int_inc [esp + 8 * 4 + 1 * 16]
2899+ %define xmm_yfrac0 [esp + 8 * 4 + 2 * 16]
2900+ %define xmm_yfrac1 [esp + 8 * 4 + 3 * 16]
2901+ %define xmm_tmp0 xmm7
2902+ %define xmm_tmp1 xmm0
2903+ %define xmm_tmp2 xmm2
2904+ %define xmm_tmp3 xmm4
2905+ %define xmm_tmp4 xmm5
2906+ %define xmm_tmp5 xmm6
2907+ %define xmm_0 [esp + 8 * 4 + 4 * 16]
2908+ %define xmm_xpos_int_begin [esp + 8 * 4 + 5 * 16]
2909+ %define xmm_xpos_frac_begin [esp + 8 * 4 + 6 * 16]
2910+ mov i_dst_stride_less_width, r1
2911+ mov i_dst_width, r2
2912+ mov i_dst_height, r3
2913+ mov p_src, r4
2914+ mov i_src_stride, r5
2915+ movd i_scaleyd, xmm0
2916+ pxor xmm_tmp0, xmm_tmp0
2917+ movdqa xmm_0, xmm_tmp0
2918+%else
2919+ %define p_dst r0
2920+ %define i_dst_stride_less_width r1
2921+ %define i_dst_width r2
2922+ %define i_dst_height r3
2923+ %define p_src r4
2924+ %define i_src_stride r5
2925+ %define i_scalex r6
2926+ %define i_scalexd r6d
2927+ %define i_scaleyd dword arg8d
2928+ %define i_xpos r12
2929+ %define i_ypos r13
2930+ %define i_yposd r13d
2931+ %define p_src_row0 rbp
2932+%ifdef WIN64
2933+ %define p_src_row1 rsi
2934+ %define i_width_cnt rdi
2935+%else
2936+ %define p_src_row1 r11
2937+ %define i_width_cnt rax
2938+%endif
2939+ %define r_tmp0 rbx
2940+ %define r_tmp0b bl
2941+ %define xmm_0 xmm0
2942+ %define xmm_xpos_frac xmm1
2943+ %define xmm_xpos_frac_inc xmm8
2944+ %define xmm_xpos_int xmm3
2945+ %define xmm_xpos_int_inc xmm10
2946+ %define xmm_yfrac0 xmm11
2947+ %define xmm_yfrac1 xmm12
2948+ %define xmm_tmp0 xmm7
2949+ %define xmm_tmp1 xmm2
2950+ %define xmm_tmp2 xmm9
2951+ %define xmm_tmp3 xmm4
2952+ %define xmm_tmp4 xmm5
2953+ %define xmm_tmp5 xmm6
2954+ %define xmm_xpos_int_begin xmm14
2955+ %define xmm_xpos_frac_begin xmm15
2956+ pxor xmm_0, xmm_0
2957+%endif
2958+
2959+ sub i_dst_height, 1
2960+ je .final_row
2961+ jl .done
2962+
2963+ mov i_ypos, 1 << 14
2964+ movd xmm_xpos_frac, i_scalexd
2965+ pshufd xmm_xpos_frac, xmm_xpos_frac, 0
2966+ movdqa xmm_tmp0, xmm_xpos_frac
2967+ pslld xmm_tmp0, 2
2968+ pslldq xmm_xpos_frac, 4
2969+ paddd xmm_tmp0, xmm_xpos_frac
2970+ movdqa xmm_tmp1, xmm_xpos_frac
2971+ pslldq xmm_tmp1, 4
2972+ paddd xmm_xpos_frac, xmm_tmp1
2973+ paddd xmm_tmp0, xmm_tmp1
2974+ pslldq xmm_tmp1, 4
2975+ paddd xmm_xpos_frac, xmm_tmp1
2976+ paddd xmm_tmp0, xmm_tmp1
2977+ pcmpeqw xmm_tmp1, xmm_tmp1
2978+ psrld xmm_tmp1, 31
2979+ pslld xmm_tmp1, 15
2980+ paddd xmm_xpos_frac, xmm_tmp1
2981+ paddd xmm_tmp0, xmm_tmp1
2982+ movdqa xmm_xpos_int, xmm_xpos_frac
2983+ movdqa xmm_tmp1, xmm_tmp0
2984+ psrld xmm_xpos_int, 16
2985+ psrld xmm_tmp1, 16
2986+ packssdw xmm_xpos_int, xmm_tmp1
2987+ packuswb xmm_xpos_int, xmm_xpos_int
2988+ movdqa xmm_tmp1, xmm_xpos_int
2989+ pcmpeqw xmm_tmp2, xmm_tmp2
2990+ psubb xmm_tmp1, xmm_tmp2
2991+ punpcklbw xmm_xpos_int, xmm_tmp1
2992+ pslld xmm_xpos_frac, 16
2993+ pslld xmm_tmp0, 16
2994+ psrad xmm_xpos_frac, 16
2995+ psrad xmm_tmp0, 16
2996+ packssdw xmm_xpos_frac, xmm_tmp0
2997+ movd xmm_tmp0, i_scalexd
2998+ pslld xmm_tmp0, 3
2999+ movdqa xmm_tmp1, xmm_tmp0
3000+ punpcklwd xmm_tmp0, xmm_tmp0
3001+ pshufd xmm_tmp0, xmm_tmp0, 0
3002+ movdqa xmm_xpos_frac_inc, xmm_tmp0
3003+ psrld xmm_tmp1, 16
3004+ psubw xmm_tmp1, xmm_tmp2
3005+ pxor xmm_tmp2, xmm_tmp2
3006+ pshufb xmm_tmp1, xmm_tmp2
3007+ movdqa xmm_xpos_int_inc, xmm_tmp1
3008+ movdqa xmm_xpos_int_begin, xmm_xpos_int
3009+ movdqa xmm_xpos_frac_begin, xmm_xpos_frac
3010+
3011+ cmp i_scalex, 4 << 16
3012+ ja .scalex_above4
3013+ cmp i_scalex, 2 << 16
3014+ ja .scalex_above2_beloweq4
3015+ SSE2_GeneralBilinearDownsampler_loop SSSE3_BilinearFastDownsample2xOrLess_8px, 1
3016+ jmp .final_row
3017+%ifdef X86_32
3018+ %undef xmm_yfrac0
3019+ %xdefine xmm_yfrac0 xmm_tmp5
3020+ %undef xmm_tmp5
3021+%endif
3022+.scalex_above2_beloweq4:
3023+ SSE2_GeneralBilinearDownsampler_loop SSSE3_BilinearFastDownsample4xOrLess_8px, 1
3024+ jmp .final_row
3025+.scalex_above4:
3026+%xdefine xmm_xfrac0 xmm_xpos_frac
3027+%xdefine xmm_xfrac1 xmm_xpos_int
3028+%xdefine xmm_xfrac0_begin xmm_xpos_int_begin
3029+%xdefine xmm_xfrac1_begin xmm_xpos_frac_begin
3030+%xdefine xmm_xfrac_inc xmm_xpos_frac_inc
3031+%undef xmm_xpos_int
3032+%undef xmm_xpos_frac
3033+%undef xmm_xpos_int_begin
3034+%undef xmm_xpos_frac_begin
3035+%undef xmm_xpos_int_inc
3036+%undef xmm_xpos_frac_inc
3037+ SSE2_UnpckXFracuw xmm_tmp0, xmm_xfrac1, xmm_xfrac0
3038+ movdqa xmm_xfrac0, xmm_tmp0
3039+ movdqa xmm_xfrac0_begin, xmm_xfrac0
3040+ movdqa xmm_xfrac1_begin, xmm_xfrac1
3041+ pcmpeqw xmm_tmp0, xmm_tmp0
3042+ pmullw xmm_tmp0, xmm_xfrac_inc
3043+ punpcklwd xmm_tmp0, xmm_xfrac_inc
3044+ movdqa xmm_xfrac_inc, xmm_tmp0
3045+ SSE2_GeneralBilinearDownsampler_loop SSE2_GeneralBilinearFastDownsample_8px, 1
3046+
3047+.final_row:
3048+ mov p_src_row0, i_ypos
3049+ shr p_src_row0, 15
3050+ imul p_src_row0, i_src_stride
3051+ add p_src_row0, p_src
3052+ mov i_xpos, 1 << 15
3053+ mov i_width_cnt, i_dst_width
3054+
3055+.final_row_width:
3056+ mov r_tmp0, i_xpos
3057+ shr r_tmp0, 16
3058+ movzx r_tmp0, byte [p_src_row0 + r_tmp0]
3059+ mov [p_dst], r_tmp0b
3060+ add p_dst, 1
3061+ add i_xpos, i_scalex
3062+ sub i_width_cnt, 1
3063+ jg .final_row_width
3064+
3065+.done:
3066+%ifdef X86_32
3067+ mov esp, [esp]
3068+%endif
3069+ POP_XMM
3070+ LOAD_7_PARA_POP
3071+%ifndef X86_32
3072+%ifdef WIN64
3073+ pop rsi
3074+ pop rdi
3075+%endif
3076+ pop rbp
3077+ pop rbx
3078+ pop r13
3079+ pop r12
3080+%endif
3081+ ret
3082+%undef p_dst
3083+%undef i_dst_stride_less_width
3084+%undef i_dst_width
3085+%undef i_dst_height
3086+%undef p_src
3087+%undef i_src_stride
3088+%undef i_scalex
3089+%undef i_scalexd
3090+%undef i_scaleyd
3091+%undef i_xpos
3092+%undef i_ypos
3093+%undef i_yposd
3094+%undef p_src_row0
3095+%undef p_src_row1
3096+%undef i_width_cnt
3097+%undef r_tmp0
3098+%undef r_tmp0b
3099+%undef xmm_0
3100+%undef xmm_xpos_frac
3101+%undef xmm_xpos_frac_inc
3102+%undef xmm_xpos_int
3103+%undef xmm_xpos_int_inc
3104+%undef xmm_yfrac0
3105+%undef xmm_yfrac1
3106+%undef xmm_tmp0
3107+%undef xmm_tmp1
3108+%undef xmm_tmp2
3109+%undef xmm_tmp3
3110+%undef xmm_tmp4
3111+%undef xmm_tmp5
3112+%undef xmm_xpos_int_begin
3113+%undef xmm_xpos_frac_begin
3114+%undef xmm_xfrac0
3115+%undef xmm_xfrac1
3116+%undef xmm_xfrac0_begin
3117+%undef xmm_xfrac1_begin
3118+%undef xmm_xfrac_inc

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