Index: source/libvpx/vp9/common/x86/vp9_postproc_sse2.asm |
=================================================================== |
--- source/libvpx/vp9/common/x86/vp9_postproc_sse2.asm (revision 0) |
+++ source/libvpx/vp9/common/x86/vp9_postproc_sse2.asm (revision 0) |
@@ -0,0 +1,695 @@ |
+; |
+; Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
+; |
+; Use of this source code is governed by a BSD-style license |
+; that can be found in the LICENSE file in the root of the source |
+; tree. An additional intellectual property rights grant can be found |
+; in the file PATENTS. All contributing project authors may |
+; be found in the AUTHORS file in the root of the source tree. |
+; |
+ |
+ |
+%include "vpx_ports/x86_abi_support.asm" |
+ |
+;void vp9_post_proc_down_and_across_xmm |
+;( |
+; unsigned char *src_ptr, |
+; unsigned char *dst_ptr, |
+; int src_pixels_per_line, |
+; int dst_pixels_per_line, |
+; int rows, |
+; int cols, |
+; int flimit |
+;) |
+global sym(vp9_post_proc_down_and_across_xmm) |
+sym(vp9_post_proc_down_and_across_xmm): |
+ push rbp |
+ mov rbp, rsp |
+ SHADOW_ARGS_TO_STACK 7 |
+ SAVE_XMM 7 |
+ GET_GOT rbx |
+ push rsi |
+ push rdi |
+ ; end prolog |
+ |
+%if ABI_IS_32BIT=1 && CONFIG_PIC=1 |
+ ALIGN_STACK 16, rax |
+ ; move the global rd onto the stack, since we don't have enough registers |
+ ; to do PIC addressing |
+ movdqa xmm0, [GLOBAL(rd42)] |
+ sub rsp, 16 |
+ movdqa [rsp], xmm0 |
+%define RD42 [rsp] |
+%else |
+%define RD42 [GLOBAL(rd42)] |
+%endif |
+ |
+ |
+ movd xmm2, dword ptr arg(6) ;flimit |
+ punpcklwd xmm2, xmm2 |
+ punpckldq xmm2, xmm2 |
+ punpcklqdq xmm2, xmm2 |
+ |
+ mov rsi, arg(0) ;src_ptr |
+ mov rdi, arg(1) ;dst_ptr |
+ |
+ movsxd rcx, DWORD PTR arg(4) ;rows |
+ movsxd rax, DWORD PTR arg(2) ;src_pixels_per_line ; destination pitch? |
+ pxor xmm0, xmm0 ; mm0 = 00000000 |
+ |
+.nextrow: |
+ |
+ xor rdx, rdx ; clear out rdx for use as loop counter |
+.nextcol: |
+ movq xmm3, QWORD PTR [rsi] ; mm4 = r0 p0..p7 |
+ punpcklbw xmm3, xmm0 ; mm3 = p0..p3 |
+ movdqa xmm1, xmm3 ; mm1 = p0..p3 |
+ psllw xmm3, 2 ; |
+ |
+ movq xmm5, QWORD PTR [rsi + rax] ; mm4 = r1 p0..p7 |
+ punpcklbw xmm5, xmm0 ; mm5 = r1 p0..p3 |
+ paddusw xmm3, xmm5 ; mm3 += mm6 |
+ |
+ ; thresholding |
+ movdqa xmm7, xmm1 ; mm7 = r0 p0..p3 |
+ psubusw xmm7, xmm5 ; mm7 = r0 p0..p3 - r1 p0..p3 |
+ psubusw xmm5, xmm1 ; mm5 = r1 p0..p3 - r0 p0..p3 |
+ paddusw xmm7, xmm5 ; mm7 = abs(r0 p0..p3 - r1 p0..p3) |
+ pcmpgtw xmm7, xmm2 |
+ |
+ movq xmm5, QWORD PTR [rsi + 2*rax] ; mm4 = r2 p0..p7 |
+ punpcklbw xmm5, xmm0 ; mm5 = r2 p0..p3 |
+ paddusw xmm3, xmm5 ; mm3 += mm5 |
+ |
+ ; thresholding |
+ movdqa xmm6, xmm1 ; mm6 = r0 p0..p3 |
+ psubusw xmm6, xmm5 ; mm6 = r0 p0..p3 - r2 p0..p3 |
+ psubusw xmm5, xmm1 ; mm5 = r2 p0..p3 - r2 p0..p3 |
+ paddusw xmm6, xmm5 ; mm6 = abs(r0 p0..p3 - r2 p0..p3) |
+ pcmpgtw xmm6, xmm2 |
+ por xmm7, xmm6 ; accumulate thresholds |
+ |
+ |
+ neg rax |
+ movq xmm5, QWORD PTR [rsi+2*rax] ; mm4 = r-2 p0..p7 |
+ punpcklbw xmm5, xmm0 ; mm5 = r-2 p0..p3 |
+ paddusw xmm3, xmm5 ; mm3 += mm5 |
+ |
+ ; thresholding |
+ movdqa xmm6, xmm1 ; mm6 = r0 p0..p3 |
+ psubusw xmm6, xmm5 ; mm6 = p0..p3 - r-2 p0..p3 |
+ psubusw xmm5, xmm1 ; mm5 = r-2 p0..p3 - p0..p3 |
+ paddusw xmm6, xmm5 ; mm6 = abs(r0 p0..p3 - r-2 p0..p3) |
+ pcmpgtw xmm6, xmm2 |
+ por xmm7, xmm6 ; accumulate thresholds |
+ |
+ movq xmm4, QWORD PTR [rsi+rax] ; mm4 = r-1 p0..p7 |
+ punpcklbw xmm4, xmm0 ; mm4 = r-1 p0..p3 |
+ paddusw xmm3, xmm4 ; mm3 += mm5 |
+ |
+ ; thresholding |
+ movdqa xmm6, xmm1 ; mm6 = r0 p0..p3 |
+ psubusw xmm6, xmm4 ; mm6 = p0..p3 - r-2 p0..p3 |
+ psubusw xmm4, xmm1 ; mm5 = r-1 p0..p3 - p0..p3 |
+ paddusw xmm6, xmm4 ; mm6 = abs(r0 p0..p3 - r-1 p0..p3) |
+ pcmpgtw xmm6, xmm2 |
+ por xmm7, xmm6 ; accumulate thresholds |
+ |
+ |
+ paddusw xmm3, RD42 ; mm3 += round value |
+ psraw xmm3, 3 ; mm3 /= 8 |
+ |
+ pand xmm1, xmm7 ; mm1 select vals > thresh from source |
+ pandn xmm7, xmm3 ; mm7 select vals < thresh from blurred result |
+ paddusw xmm1, xmm7 ; combination |
+ |
+ packuswb xmm1, xmm0 ; pack to bytes |
+ movq QWORD PTR [rdi], xmm1 ; |
+ |
+ neg rax ; pitch is positive |
+ add rsi, 8 |
+ add rdi, 8 |
+ |
+ add rdx, 8 |
+ cmp edx, dword arg(5) ;cols |
+ |
+ jl .nextcol |
+ |
+ ; done with the all cols, start the across filtering in place |
+ sub rsi, rdx |
+ sub rdi, rdx |
+ |
+ xor rdx, rdx |
+ movq mm0, QWORD PTR [rdi-8]; |
+ |
+.acrossnextcol: |
+ movq xmm7, QWORD PTR [rdi +rdx -2] |
+ movd xmm4, DWORD PTR [rdi +rdx +6] |
+ |
+ pslldq xmm4, 8 |
+ por xmm4, xmm7 |
+ |
+ movdqa xmm3, xmm4 |
+ psrldq xmm3, 2 |
+ punpcklbw xmm3, xmm0 ; mm3 = p0..p3 |
+ movdqa xmm1, xmm3 ; mm1 = p0..p3 |
+ psllw xmm3, 2 |
+ |
+ |
+ movdqa xmm5, xmm4 |
+ psrldq xmm5, 3 |
+ punpcklbw xmm5, xmm0 ; mm5 = p1..p4 |
+ paddusw xmm3, xmm5 ; mm3 += mm6 |
+ |
+ ; thresholding |
+ movdqa xmm7, xmm1 ; mm7 = p0..p3 |
+ psubusw xmm7, xmm5 ; mm7 = p0..p3 - p1..p4 |
+ psubusw xmm5, xmm1 ; mm5 = p1..p4 - p0..p3 |
+ paddusw xmm7, xmm5 ; mm7 = abs(p0..p3 - p1..p4) |
+ pcmpgtw xmm7, xmm2 |
+ |
+ movdqa xmm5, xmm4 |
+ psrldq xmm5, 4 |
+ punpcklbw xmm5, xmm0 ; mm5 = p2..p5 |
+ paddusw xmm3, xmm5 ; mm3 += mm5 |
+ |
+ ; thresholding |
+ movdqa xmm6, xmm1 ; mm6 = p0..p3 |
+ psubusw xmm6, xmm5 ; mm6 = p0..p3 - p1..p4 |
+ psubusw xmm5, xmm1 ; mm5 = p1..p4 - p0..p3 |
+ paddusw xmm6, xmm5 ; mm6 = abs(p0..p3 - p1..p4) |
+ pcmpgtw xmm6, xmm2 |
+ por xmm7, xmm6 ; accumulate thresholds |
+ |
+ |
+ movdqa xmm5, xmm4 ; mm5 = p-2..p5 |
+ punpcklbw xmm5, xmm0 ; mm5 = p-2..p1 |
+ paddusw xmm3, xmm5 ; mm3 += mm5 |
+ |
+ ; thresholding |
+ movdqa xmm6, xmm1 ; mm6 = p0..p3 |
+ psubusw xmm6, xmm5 ; mm6 = p0..p3 - p1..p4 |
+ psubusw xmm5, xmm1 ; mm5 = p1..p4 - p0..p3 |
+ paddusw xmm6, xmm5 ; mm6 = abs(p0..p3 - p1..p4) |
+ pcmpgtw xmm6, xmm2 |
+ por xmm7, xmm6 ; accumulate thresholds |
+ |
+ psrldq xmm4, 1 ; mm4 = p-1..p5 |
+ punpcklbw xmm4, xmm0 ; mm4 = p-1..p2 |
+ paddusw xmm3, xmm4 ; mm3 += mm5 |
+ |
+ ; thresholding |
+ movdqa xmm6, xmm1 ; mm6 = p0..p3 |
+ psubusw xmm6, xmm4 ; mm6 = p0..p3 - p1..p4 |
+ psubusw xmm4, xmm1 ; mm5 = p1..p4 - p0..p3 |
+ paddusw xmm6, xmm4 ; mm6 = abs(p0..p3 - p1..p4) |
+ pcmpgtw xmm6, xmm2 |
+ por xmm7, xmm6 ; accumulate thresholds |
+ |
+ paddusw xmm3, RD42 ; mm3 += round value |
+ psraw xmm3, 3 ; mm3 /= 8 |
+ |
+ pand xmm1, xmm7 ; mm1 select vals > thresh from source |
+ pandn xmm7, xmm3 ; mm7 select vals < thresh from blurred result |
+ paddusw xmm1, xmm7 ; combination |
+ |
+ packuswb xmm1, xmm0 ; pack to bytes |
+ movq QWORD PTR [rdi+rdx-8], mm0 ; store previous four bytes |
+ movdq2q mm0, xmm1 |
+ |
+ add rdx, 8 |
+ cmp edx, dword arg(5) ;cols |
+ jl .acrossnextcol; |
+ |
+ ; last 8 pixels |
+ movq QWORD PTR [rdi+rdx-8], mm0 |
+ |
+ ; done with this rwo |
+ add rsi,rax ; next line |
+ mov eax, dword arg(3) ;dst_pixels_per_line ; destination pitch? |
+ add rdi,rax ; next destination |
+ mov eax, dword arg(2) ;src_pixels_per_line ; destination pitch? |
+ |
+ dec rcx ; decrement count |
+ jnz .nextrow ; next row |
+ |
+%if ABI_IS_32BIT=1 && CONFIG_PIC=1 |
+ add rsp,16 |
+ pop rsp |
+%endif |
+ ; begin epilog |
+ pop rdi |
+ pop rsi |
+ RESTORE_GOT |
+ RESTORE_XMM |
+ UNSHADOW_ARGS |
+ pop rbp |
+ ret |
+%undef RD42 |
+ |
+ |
+;void vp9_mbpost_proc_down_xmm(unsigned char *dst, |
+; int pitch, int rows, int cols,int flimit) |
+extern sym(vp9_rv) |
+global sym(vp9_mbpost_proc_down_xmm) |
+sym(vp9_mbpost_proc_down_xmm): |
+ push rbp |
+ mov rbp, rsp |
+ SHADOW_ARGS_TO_STACK 5 |
+ SAVE_XMM 7 |
+ GET_GOT rbx |
+ push rsi |
+ push rdi |
+ ; end prolog |
+ |
+ ALIGN_STACK 16, rax |
+ sub rsp, 128+16 |
+ |
+ ; unsigned char d[16][8] at [rsp] |
+ ; create flimit2 at [rsp+128] |
+ mov eax, dword ptr arg(4) ;flimit |
+ mov [rsp+128], eax |
+ mov [rsp+128+4], eax |
+ mov [rsp+128+8], eax |
+ mov [rsp+128+12], eax |
+%define flimit4 [rsp+128] |
+ |
+%if ABI_IS_32BIT=0 |
+ lea r8, [GLOBAL(sym(vp9_rv))] |
+%endif |
+ |
+ ;rows +=8; |
+ add dword arg(2), 8 |
+ |
+ ;for(c=0; c<cols; c+=8) |
+.loop_col: |
+ mov rsi, arg(0) ; s |
+ pxor xmm0, xmm0 ; |
+ |
+ movsxd rax, dword ptr arg(1) ;pitch ; |
+ neg rax ; rax = -pitch |
+ |
+ lea rsi, [rsi + rax*8]; ; rdi = s[-pitch*8] |
+ neg rax |
+ |
+ |
+ pxor xmm5, xmm5 |
+ pxor xmm6, xmm6 ; |
+ |
+ pxor xmm7, xmm7 ; |
+ mov rdi, rsi |
+ |
+ mov rcx, 15 ; |
+ |
+.loop_initvar: |
+ movq xmm1, QWORD PTR [rdi]; |
+ punpcklbw xmm1, xmm0 ; |
+ |
+ paddw xmm5, xmm1 ; |
+ pmullw xmm1, xmm1 ; |
+ |
+ movdqa xmm2, xmm1 ; |
+ punpcklwd xmm1, xmm0 ; |
+ |
+ punpckhwd xmm2, xmm0 ; |
+ paddd xmm6, xmm1 ; |
+ |
+ paddd xmm7, xmm2 ; |
+ lea rdi, [rdi+rax] ; |
+ |
+ dec rcx |
+ jne .loop_initvar |
+ ;save the var and sum |
+ xor rdx, rdx |
+.loop_row: |
+ movq xmm1, QWORD PTR [rsi] ; [s-pitch*8] |
+ movq xmm2, QWORD PTR [rdi] ; [s+pitch*7] |
+ |
+ punpcklbw xmm1, xmm0 |
+ punpcklbw xmm2, xmm0 |
+ |
+ paddw xmm5, xmm2 |
+ psubw xmm5, xmm1 |
+ |
+ pmullw xmm2, xmm2 |
+ movdqa xmm4, xmm2 |
+ |
+ punpcklwd xmm2, xmm0 |
+ punpckhwd xmm4, xmm0 |
+ |
+ paddd xmm6, xmm2 |
+ paddd xmm7, xmm4 |
+ |
+ pmullw xmm1, xmm1 |
+ movdqa xmm2, xmm1 |
+ |
+ punpcklwd xmm1, xmm0 |
+ psubd xmm6, xmm1 |
+ |
+ punpckhwd xmm2, xmm0 |
+ psubd xmm7, xmm2 |
+ |
+ |
+ movdqa xmm3, xmm6 |
+ pslld xmm3, 4 |
+ |
+ psubd xmm3, xmm6 |
+ movdqa xmm1, xmm5 |
+ |
+ movdqa xmm4, xmm5 |
+ pmullw xmm1, xmm1 |
+ |
+ pmulhw xmm4, xmm4 |
+ movdqa xmm2, xmm1 |
+ |
+ punpcklwd xmm1, xmm4 |
+ punpckhwd xmm2, xmm4 |
+ |
+ movdqa xmm4, xmm7 |
+ pslld xmm4, 4 |
+ |
+ psubd xmm4, xmm7 |
+ |
+ psubd xmm3, xmm1 |
+ psubd xmm4, xmm2 |
+ |
+ psubd xmm3, flimit4 |
+ psubd xmm4, flimit4 |
+ |
+ psrad xmm3, 31 |
+ psrad xmm4, 31 |
+ |
+ packssdw xmm3, xmm4 |
+ packsswb xmm3, xmm0 |
+ |
+ movq xmm1, QWORD PTR [rsi+rax*8] |
+ |
+ movq xmm2, xmm1 |
+ punpcklbw xmm1, xmm0 |
+ |
+ paddw xmm1, xmm5 |
+ mov rcx, rdx |
+ |
+ and rcx, 127 |
+%if ABI_IS_32BIT=1 && CONFIG_PIC=1 |
+ push rax |
+ lea rax, [GLOBAL(sym(vp9_rv))] |
+ movdqu xmm4, [rax + rcx*2] ;vp9_rv[rcx*2] |
+ pop rax |
+%elif ABI_IS_32BIT=0 |
+ movdqu xmm4, [r8 + rcx*2] ;vp9_rv[rcx*2] |
+%else |
+ movdqu xmm4, [sym(vp9_rv) + rcx*2] |
+%endif |
+ |
+ paddw xmm1, xmm4 |
+ ;paddw xmm1, eight8s |
+ psraw xmm1, 4 |
+ |
+ packuswb xmm1, xmm0 |
+ pand xmm1, xmm3 |
+ |
+ pandn xmm3, xmm2 |
+ por xmm1, xmm3 |
+ |
+ and rcx, 15 |
+ movq QWORD PTR [rsp + rcx*8], xmm1 ;d[rcx*8] |
+ |
+ mov rcx, rdx |
+ sub rcx, 8 |
+ |
+ and rcx, 15 |
+ movq mm0, [rsp + rcx*8] ;d[rcx*8] |
+ |
+ movq [rsi], mm0 |
+ lea rsi, [rsi+rax] |
+ |
+ lea rdi, [rdi+rax] |
+ add rdx, 1 |
+ |
+ cmp edx, dword arg(2) ;rows |
+ jl .loop_row |
+ |
+ add dword arg(0), 8 ; s += 8 |
+ sub dword arg(3), 8 ; cols -= 8 |
+ cmp dword arg(3), 0 |
+ jg .loop_col |
+ |
+ add rsp, 128+16 |
+ pop rsp |
+ |
+ ; begin epilog |
+ pop rdi |
+ pop rsi |
+ RESTORE_GOT |
+ RESTORE_XMM |
+ UNSHADOW_ARGS |
+ pop rbp |
+ ret |
+%undef flimit4 |
+ |
+ |
+;void vp9_mbpost_proc_across_ip_xmm(unsigned char *src, |
+; int pitch, int rows, int cols,int flimit) |
+global sym(vp9_mbpost_proc_across_ip_xmm) |
+sym(vp9_mbpost_proc_across_ip_xmm): |
+ push rbp |
+ mov rbp, rsp |
+ SHADOW_ARGS_TO_STACK 5 |
+ SAVE_XMM 7 |
+ GET_GOT rbx |
+ push rsi |
+ push rdi |
+ ; end prolog |
+ |
+ ALIGN_STACK 16, rax |
+ sub rsp, 16 |
+ |
+ ; create flimit4 at [rsp] |
+ mov eax, dword ptr arg(4) ;flimit |
+ mov [rsp], eax |
+ mov [rsp+4], eax |
+ mov [rsp+8], eax |
+ mov [rsp+12], eax |
+%define flimit4 [rsp] |
+ |
+ |
+ ;for(r=0;r<rows;r++) |
+.ip_row_loop: |
+ |
+ xor rdx, rdx ;sumsq=0; |
+ xor rcx, rcx ;sum=0; |
+ mov rsi, arg(0); s |
+ mov rdi, -8 |
+.ip_var_loop: |
+ ;for(i=-8;i<=6;i++) |
+ ;{ |
+ ; sumsq += s[i]*s[i]; |
+ ; sum += s[i]; |
+ ;} |
+ movzx eax, byte [rsi+rdi] |
+ add ecx, eax |
+ mul al |
+ add edx, eax |
+ add rdi, 1 |
+ cmp rdi, 6 |
+ jle .ip_var_loop |
+ |
+ |
+ ;mov rax, sumsq |
+ ;movd xmm7, rax |
+ movd xmm7, edx |
+ |
+ ;mov rax, sum |
+ ;movd xmm6, rax |
+ movd xmm6, ecx |
+ |
+ mov rsi, arg(0) ;s |
+ xor rcx, rcx |
+ |
+ movsxd rdx, dword arg(3) ;cols |
+ add rdx, 8 |
+ pxor mm0, mm0 |
+ pxor mm1, mm1 |
+ |
+ pxor xmm0, xmm0 |
+.nextcol4: |
+ |
+ movd xmm1, DWORD PTR [rsi+rcx-8] ; -8 -7 -6 -5 |
+ movd xmm2, DWORD PTR [rsi+rcx+7] ; +7 +8 +9 +10 |
+ |
+ punpcklbw xmm1, xmm0 ; expanding |
+ punpcklbw xmm2, xmm0 ; expanding |
+ |
+ punpcklwd xmm1, xmm0 ; expanding to dwords |
+ punpcklwd xmm2, xmm0 ; expanding to dwords |
+ |
+ psubd xmm2, xmm1 ; 7--8 8--7 9--6 10--5 |
+ paddd xmm1, xmm1 ; -8*2 -7*2 -6*2 -5*2 |
+ |
+ paddd xmm1, xmm2 ; 7+-8 8+-7 9+-6 10+-5 |
+ pmaddwd xmm1, xmm2 ; squared of 7+-8 8+-7 9+-6 10+-5 |
+ |
+ paddd xmm6, xmm2 |
+ paddd xmm7, xmm1 |
+ |
+ pshufd xmm6, xmm6, 0 ; duplicate the last ones |
+ pshufd xmm7, xmm7, 0 ; duplicate the last ones |
+ |
+ psrldq xmm1, 4 ; 8--7 9--6 10--5 0000 |
+ psrldq xmm2, 4 ; 8--7 9--6 10--5 0000 |
+ |
+ pshufd xmm3, xmm1, 3 ; 0000 8--7 8--7 8--7 squared |
+ pshufd xmm4, xmm2, 3 ; 0000 8--7 8--7 8--7 squared |
+ |
+ paddd xmm6, xmm4 |
+ paddd xmm7, xmm3 |
+ |
+ pshufd xmm3, xmm1, 01011111b ; 0000 0000 9--6 9--6 squared |
+ pshufd xmm4, xmm2, 01011111b ; 0000 0000 9--6 9--6 squared |
+ |
+ paddd xmm7, xmm3 |
+ paddd xmm6, xmm4 |
+ |
+ pshufd xmm3, xmm1, 10111111b ; 0000 0000 8--7 8--7 squared |
+ pshufd xmm4, xmm2, 10111111b ; 0000 0000 8--7 8--7 squared |
+ |
+ paddd xmm7, xmm3 |
+ paddd xmm6, xmm4 |
+ |
+ movdqa xmm3, xmm6 |
+ pmaddwd xmm3, xmm3 |
+ |
+ movdqa xmm5, xmm7 |
+ pslld xmm5, 4 |
+ |
+ psubd xmm5, xmm7 |
+ psubd xmm5, xmm3 |
+ |
+ psubd xmm5, flimit4 |
+ psrad xmm5, 31 |
+ |
+ packssdw xmm5, xmm0 |
+ packsswb xmm5, xmm0 |
+ |
+ movd xmm1, DWORD PTR [rsi+rcx] |
+ movq xmm2, xmm1 |
+ |
+ punpcklbw xmm1, xmm0 |
+ punpcklwd xmm1, xmm0 |
+ |
+ paddd xmm1, xmm6 |
+ paddd xmm1, [GLOBAL(four8s)] |
+ |
+ psrad xmm1, 4 |
+ packssdw xmm1, xmm0 |
+ |
+ packuswb xmm1, xmm0 |
+ pand xmm1, xmm5 |
+ |
+ pandn xmm5, xmm2 |
+ por xmm5, xmm1 |
+ |
+ movd [rsi+rcx-8], mm0 |
+ movq mm0, mm1 |
+ |
+ movdq2q mm1, xmm5 |
+ psrldq xmm7, 12 |
+ |
+ psrldq xmm6, 12 |
+ add rcx, 4 |
+ |
+ cmp rcx, rdx |
+ jl .nextcol4 |
+ |
+ ;s+=pitch; |
+ movsxd rax, dword arg(1) |
+ add arg(0), rax |
+ |
+ sub dword arg(2), 1 ;rows-=1 |
+ cmp dword arg(2), 0 |
+ jg .ip_row_loop |
+ |
+ add rsp, 16 |
+ pop rsp |
+ |
+ ; begin epilog |
+ pop rdi |
+ pop rsi |
+ RESTORE_GOT |
+ RESTORE_XMM |
+ UNSHADOW_ARGS |
+ pop rbp |
+ ret |
+%undef flimit4 |
+ |
+ |
+;void vp9_plane_add_noise_wmt (unsigned char *Start, unsigned char *noise, |
+; unsigned char blackclamp[16], |
+; unsigned char whiteclamp[16], |
+; unsigned char bothclamp[16], |
+; unsigned int Width, unsigned int Height, int Pitch) |
+extern sym(rand) |
+global sym(vp9_plane_add_noise_wmt) |
+sym(vp9_plane_add_noise_wmt): |
+ push rbp |
+ mov rbp, rsp |
+ SHADOW_ARGS_TO_STACK 8 |
+ GET_GOT rbx |
+ push rsi |
+ push rdi |
+ ; end prolog |
+ |
+.addnoise_loop: |
+ call sym(rand) WRT_PLT |
+ mov rcx, arg(1) ;noise |
+ and rax, 0xff |
+ add rcx, rax |
+ |
+ ; we rely on the fact that the clamping vectors are stored contiguously |
+ ; in black/white/both order. Note that we have to reload this here because |
+ ; rdx could be trashed by rand() |
+ mov rdx, arg(2) ; blackclamp |
+ |
+ |
+ mov rdi, rcx |
+ movsxd rcx, dword arg(5) ;[Width] |
+ mov rsi, arg(0) ;Pos |
+ xor rax,rax |
+ |
+.addnoise_nextset: |
+ movdqu xmm1,[rsi+rax] ; get the source |
+ |
+ psubusb xmm1, [rdx] ;blackclamp ; clamp both sides so we don't outrange adding noise |
+ paddusb xmm1, [rdx+32] ;bothclamp |
+ psubusb xmm1, [rdx+16] ;whiteclamp |
+ |
+ movdqu xmm2,[rdi+rax] ; get the noise for this line |
+ paddb xmm1,xmm2 ; add it in |
+ movdqu [rsi+rax],xmm1 ; store the result |
+ |
+ add rax,16 ; move to the next line |
+ |
+ cmp rax, rcx |
+ jl .addnoise_nextset |
+ |
+ movsxd rax, dword arg(7) ; Pitch |
+ add arg(0), rax ; Start += Pitch |
+ sub dword arg(6), 1 ; Height -= 1 |
+ jg .addnoise_loop |
+ |
+ ; begin epilog |
+ pop rdi |
+ pop rsi |
+ RESTORE_GOT |
+ UNSHADOW_ARGS |
+ pop rbp |
+ ret |
+ |
+ |
+SECTION_RODATA |
+align 16 |
+rd42: |
+ times 8 dw 0x04 |
+four8s: |
+ times 4 dd 8 |