Index: simd/jfdctflt-sse.asm |
diff --git a/simd/jfdctflt-sse.asm b/simd/jfdctflt-sse.asm |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c2f61c83bc360916a770058a44268d4893937582 |
--- /dev/null |
+++ b/simd/jfdctflt-sse.asm |
@@ -0,0 +1,370 @@ |
+; |
+; jfdctflt.asm - floating-point FDCT (SSE) |
+; |
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB |
+; |
+; Based on |
+; x86 SIMD extension for IJG JPEG library |
+; Copyright (C) 1999-2006, MIYASAKA Masaru. |
+; For conditions of distribution and use, see copyright notice in jsimdext.inc |
+; |
+; This file should be assembled with NASM (Netwide Assembler), |
+; can *not* be assembled with Microsoft's MASM or any compatible |
+; assembler (including Borland's Turbo Assembler). |
+; NASM is available from http://nasm.sourceforge.net/ or |
+; http://sourceforge.net/project/showfiles.php?group_id=6208 |
+; |
+; This file contains a floating-point implementation of the forward DCT |
+; (Discrete Cosine Transform). The following code is based directly on |
+; the IJG's original jfdctflt.c; see the jfdctflt.c for more details. |
+; |
+; [TAB8] |
+ |
+%include "jsimdext.inc" |
+%include "jdct.inc" |
+ |
+; -------------------------------------------------------------------------- |
+ |
+%macro unpcklps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(0 1 4 5) |
+ shufps %1,%2,0x44 |
+%endmacro |
+ |
+%macro unpckhps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(2 3 6 7) |
+ shufps %1,%2,0xEE |
+%endmacro |
+ |
+; -------------------------------------------------------------------------- |
+ SECTION SEG_CONST |
+ |
+ alignz 16 |
+ global EXTN(jconst_fdct_float_sse) |
+ |
+EXTN(jconst_fdct_float_sse): |
+ |
+PD_0_382 times 4 dd 0.382683432365089771728460 |
+PD_0_707 times 4 dd 0.707106781186547524400844 |
+PD_0_541 times 4 dd 0.541196100146196984399723 |
+PD_1_306 times 4 dd 1.306562964876376527856643 |
+ |
+ alignz 16 |
+ |
+; -------------------------------------------------------------------------- |
+ SECTION SEG_TEXT |
+ BITS 32 |
+; |
+; Perform the forward DCT on one block of samples. |
+; |
+; GLOBAL(void) |
+; jsimd_fdct_float_sse (FAST_FLOAT *data) |
+; |
+ |
+%define data(b) (b)+8 ; FAST_FLOAT *data |
+ |
+%define original_ebp ebp+0 |
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] |
+%define WK_NUM 2 |
+ |
+ align 16 |
+ global EXTN(jsimd_fdct_float_sse) |
+ |
+EXTN(jsimd_fdct_float_sse): |
+ push ebp |
+ mov eax,esp ; eax = original ebp |
+ sub esp, byte 4 |
+ and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits |
+ mov [esp],eax |
+ mov ebp,esp ; ebp = aligned ebp |
+ lea esp, [wk(0)] |
+ pushpic ebx |
+; push ecx ; need not be preserved |
+; push edx ; need not be preserved |
+; push esi ; unused |
+; push edi ; unused |
+ |
+ get_GOT ebx ; get GOT address |
+ |
+ ; ---- Pass 1: process rows. |
+ |
+ mov edx, POINTER [data(eax)] ; (FAST_FLOAT *) |
+ mov ecx, DCTSIZE/4 |
+ alignx 16,7 |
+.rowloop: |
+ |
+ movaps xmm0, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm2, XMMWORD [XMMBLOCK(2,1,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm3, XMMWORD [XMMBLOCK(3,1,edx,SIZEOF_FAST_FLOAT)] |
+ |
+ ; xmm0=(20 21 22 23), xmm2=(24 25 26 27) |
+ ; xmm1=(30 31 32 33), xmm3=(34 35 36 37) |
+ |
+ movaps xmm4,xmm0 ; transpose coefficients(phase 1) |
+ unpcklps xmm0,xmm1 ; xmm0=(20 30 21 31) |
+ unpckhps xmm4,xmm1 ; xmm4=(22 32 23 33) |
+ movaps xmm5,xmm2 ; transpose coefficients(phase 1) |
+ unpcklps xmm2,xmm3 ; xmm2=(24 34 25 35) |
+ unpckhps xmm5,xmm3 ; xmm5=(26 36 27 37) |
+ |
+ movaps xmm6, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm7, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm1, XMMWORD [XMMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm3, XMMWORD [XMMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)] |
+ |
+ ; xmm6=(00 01 02 03), xmm1=(04 05 06 07) |
+ ; xmm7=(10 11 12 13), xmm3=(14 15 16 17) |
+ |
+ movaps XMMWORD [wk(0)], xmm4 ; wk(0)=(22 32 23 33) |
+ movaps XMMWORD [wk(1)], xmm2 ; wk(1)=(24 34 25 35) |
+ |
+ movaps xmm4,xmm6 ; transpose coefficients(phase 1) |
+ unpcklps xmm6,xmm7 ; xmm6=(00 10 01 11) |
+ unpckhps xmm4,xmm7 ; xmm4=(02 12 03 13) |
+ movaps xmm2,xmm1 ; transpose coefficients(phase 1) |
+ unpcklps xmm1,xmm3 ; xmm1=(04 14 05 15) |
+ unpckhps xmm2,xmm3 ; xmm2=(06 16 07 17) |
+ |
+ movaps xmm7,xmm6 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm6,xmm0 ; xmm6=(00 10 20 30)=data0 |
+ unpckhps2 xmm7,xmm0 ; xmm7=(01 11 21 31)=data1 |
+ movaps xmm3,xmm2 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm2,xmm5 ; xmm2=(06 16 26 36)=data6 |
+ unpckhps2 xmm3,xmm5 ; xmm3=(07 17 27 37)=data7 |
+ |
+ movaps xmm0,xmm7 |
+ movaps xmm5,xmm6 |
+ subps xmm7,xmm2 ; xmm7=data1-data6=tmp6 |
+ subps xmm6,xmm3 ; xmm6=data0-data7=tmp7 |
+ addps xmm0,xmm2 ; xmm0=data1+data6=tmp1 |
+ addps xmm5,xmm3 ; xmm5=data0+data7=tmp0 |
+ |
+ movaps xmm2, XMMWORD [wk(0)] ; xmm2=(22 32 23 33) |
+ movaps xmm3, XMMWORD [wk(1)] ; xmm3=(24 34 25 35) |
+ movaps XMMWORD [wk(0)], xmm7 ; wk(0)=tmp6 |
+ movaps XMMWORD [wk(1)], xmm6 ; wk(1)=tmp7 |
+ |
+ movaps xmm7,xmm4 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm4,xmm2 ; xmm4=(02 12 22 32)=data2 |
+ unpckhps2 xmm7,xmm2 ; xmm7=(03 13 23 33)=data3 |
+ movaps xmm6,xmm1 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm1,xmm3 ; xmm1=(04 14 24 34)=data4 |
+ unpckhps2 xmm6,xmm3 ; xmm6=(05 15 25 35)=data5 |
+ |
+ movaps xmm2,xmm7 |
+ movaps xmm3,xmm4 |
+ addps xmm7,xmm1 ; xmm7=data3+data4=tmp3 |
+ addps xmm4,xmm6 ; xmm4=data2+data5=tmp2 |
+ subps xmm2,xmm1 ; xmm2=data3-data4=tmp4 |
+ subps xmm3,xmm6 ; xmm3=data2-data5=tmp5 |
+ |
+ ; -- Even part |
+ |
+ movaps xmm1,xmm5 |
+ movaps xmm6,xmm0 |
+ subps xmm5,xmm7 ; xmm5=tmp13 |
+ subps xmm0,xmm4 ; xmm0=tmp12 |
+ addps xmm1,xmm7 ; xmm1=tmp10 |
+ addps xmm6,xmm4 ; xmm6=tmp11 |
+ |
+ addps xmm0,xmm5 |
+ mulps xmm0,[GOTOFF(ebx,PD_0_707)] ; xmm0=z1 |
+ |
+ movaps xmm7,xmm1 |
+ movaps xmm4,xmm5 |
+ subps xmm1,xmm6 ; xmm1=data4 |
+ subps xmm5,xmm0 ; xmm5=data6 |
+ addps xmm7,xmm6 ; xmm7=data0 |
+ addps xmm4,xmm0 ; xmm4=data2 |
+ |
+ movaps XMMWORD [XMMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)], xmm1 |
+ movaps XMMWORD [XMMBLOCK(2,1,edx,SIZEOF_FAST_FLOAT)], xmm5 |
+ movaps XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], xmm7 |
+ movaps XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)], xmm4 |
+ |
+ ; -- Odd part |
+ |
+ movaps xmm6, XMMWORD [wk(0)] ; xmm6=tmp6 |
+ movaps xmm0, XMMWORD [wk(1)] ; xmm0=tmp7 |
+ |
+ addps xmm2,xmm3 ; xmm2=tmp10 |
+ addps xmm3,xmm6 ; xmm3=tmp11 |
+ addps xmm6,xmm0 ; xmm6=tmp12, xmm0=tmp7 |
+ |
+ mulps xmm3,[GOTOFF(ebx,PD_0_707)] ; xmm3=z3 |
+ |
+ movaps xmm1,xmm2 ; xmm1=tmp10 |
+ subps xmm2,xmm6 |
+ mulps xmm2,[GOTOFF(ebx,PD_0_382)] ; xmm2=z5 |
+ mulps xmm1,[GOTOFF(ebx,PD_0_541)] ; xmm1=MULTIPLY(tmp10,FIX_0_541196) |
+ mulps xmm6,[GOTOFF(ebx,PD_1_306)] ; xmm6=MULTIPLY(tmp12,FIX_1_306562) |
+ addps xmm1,xmm2 ; xmm1=z2 |
+ addps xmm6,xmm2 ; xmm6=z4 |
+ |
+ movaps xmm5,xmm0 |
+ subps xmm0,xmm3 ; xmm0=z13 |
+ addps xmm5,xmm3 ; xmm5=z11 |
+ |
+ movaps xmm7,xmm0 |
+ movaps xmm4,xmm5 |
+ subps xmm0,xmm1 ; xmm0=data3 |
+ subps xmm5,xmm6 ; xmm5=data7 |
+ addps xmm7,xmm1 ; xmm7=data5 |
+ addps xmm4,xmm6 ; xmm4=data1 |
+ |
+ movaps XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)], xmm0 |
+ movaps XMMWORD [XMMBLOCK(3,1,edx,SIZEOF_FAST_FLOAT)], xmm5 |
+ movaps XMMWORD [XMMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)], xmm7 |
+ movaps XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], xmm4 |
+ |
+ add edx, 4*DCTSIZE*SIZEOF_FAST_FLOAT |
+ dec ecx |
+ jnz near .rowloop |
+ |
+ ; ---- Pass 2: process columns. |
+ |
+ mov edx, POINTER [data(eax)] ; (FAST_FLOAT *) |
+ mov ecx, DCTSIZE/4 |
+ alignx 16,7 |
+.columnloop: |
+ |
+ movaps xmm0, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm2, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)] |
+ |
+ ; xmm0=(02 12 22 32), xmm2=(42 52 62 72) |
+ ; xmm1=(03 13 23 33), xmm3=(43 53 63 73) |
+ |
+ movaps xmm4,xmm0 ; transpose coefficients(phase 1) |
+ unpcklps xmm0,xmm1 ; xmm0=(02 03 12 13) |
+ unpckhps xmm4,xmm1 ; xmm4=(22 23 32 33) |
+ movaps xmm5,xmm2 ; transpose coefficients(phase 1) |
+ unpcklps xmm2,xmm3 ; xmm2=(42 43 52 53) |
+ unpckhps xmm5,xmm3 ; xmm5=(62 63 72 73) |
+ |
+ movaps xmm6, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm7, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm1, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm3, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)] |
+ |
+ ; xmm6=(00 10 20 30), xmm1=(40 50 60 70) |
+ ; xmm7=(01 11 21 31), xmm3=(41 51 61 71) |
+ |
+ movaps XMMWORD [wk(0)], xmm4 ; wk(0)=(22 23 32 33) |
+ movaps XMMWORD [wk(1)], xmm2 ; wk(1)=(42 43 52 53) |
+ |
+ movaps xmm4,xmm6 ; transpose coefficients(phase 1) |
+ unpcklps xmm6,xmm7 ; xmm6=(00 01 10 11) |
+ unpckhps xmm4,xmm7 ; xmm4=(20 21 30 31) |
+ movaps xmm2,xmm1 ; transpose coefficients(phase 1) |
+ unpcklps xmm1,xmm3 ; xmm1=(40 41 50 51) |
+ unpckhps xmm2,xmm3 ; xmm2=(60 61 70 71) |
+ |
+ movaps xmm7,xmm6 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm6,xmm0 ; xmm6=(00 01 02 03)=data0 |
+ unpckhps2 xmm7,xmm0 ; xmm7=(10 11 12 13)=data1 |
+ movaps xmm3,xmm2 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm2,xmm5 ; xmm2=(60 61 62 63)=data6 |
+ unpckhps2 xmm3,xmm5 ; xmm3=(70 71 72 73)=data7 |
+ |
+ movaps xmm0,xmm7 |
+ movaps xmm5,xmm6 |
+ subps xmm7,xmm2 ; xmm7=data1-data6=tmp6 |
+ subps xmm6,xmm3 ; xmm6=data0-data7=tmp7 |
+ addps xmm0,xmm2 ; xmm0=data1+data6=tmp1 |
+ addps xmm5,xmm3 ; xmm5=data0+data7=tmp0 |
+ |
+ movaps xmm2, XMMWORD [wk(0)] ; xmm2=(22 23 32 33) |
+ movaps xmm3, XMMWORD [wk(1)] ; xmm3=(42 43 52 53) |
+ movaps XMMWORD [wk(0)], xmm7 ; wk(0)=tmp6 |
+ movaps XMMWORD [wk(1)], xmm6 ; wk(1)=tmp7 |
+ |
+ movaps xmm7,xmm4 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm4,xmm2 ; xmm4=(20 21 22 23)=data2 |
+ unpckhps2 xmm7,xmm2 ; xmm7=(30 31 32 33)=data3 |
+ movaps xmm6,xmm1 ; transpose coefficients(phase 2) |
+ unpcklps2 xmm1,xmm3 ; xmm1=(40 41 42 43)=data4 |
+ unpckhps2 xmm6,xmm3 ; xmm6=(50 51 52 53)=data5 |
+ |
+ movaps xmm2,xmm7 |
+ movaps xmm3,xmm4 |
+ addps xmm7,xmm1 ; xmm7=data3+data4=tmp3 |
+ addps xmm4,xmm6 ; xmm4=data2+data5=tmp2 |
+ subps xmm2,xmm1 ; xmm2=data3-data4=tmp4 |
+ subps xmm3,xmm6 ; xmm3=data2-data5=tmp5 |
+ |
+ ; -- Even part |
+ |
+ movaps xmm1,xmm5 |
+ movaps xmm6,xmm0 |
+ subps xmm5,xmm7 ; xmm5=tmp13 |
+ subps xmm0,xmm4 ; xmm0=tmp12 |
+ addps xmm1,xmm7 ; xmm1=tmp10 |
+ addps xmm6,xmm4 ; xmm6=tmp11 |
+ |
+ addps xmm0,xmm5 |
+ mulps xmm0,[GOTOFF(ebx,PD_0_707)] ; xmm0=z1 |
+ |
+ movaps xmm7,xmm1 |
+ movaps xmm4,xmm5 |
+ subps xmm1,xmm6 ; xmm1=data4 |
+ subps xmm5,xmm0 ; xmm5=data6 |
+ addps xmm7,xmm6 ; xmm7=data0 |
+ addps xmm4,xmm0 ; xmm4=data2 |
+ |
+ movaps XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)], xmm1 |
+ movaps XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)], xmm5 |
+ movaps XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], xmm7 |
+ movaps XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)], xmm4 |
+ |
+ ; -- Odd part |
+ |
+ movaps xmm6, XMMWORD [wk(0)] ; xmm6=tmp6 |
+ movaps xmm0, XMMWORD [wk(1)] ; xmm0=tmp7 |
+ |
+ addps xmm2,xmm3 ; xmm2=tmp10 |
+ addps xmm3,xmm6 ; xmm3=tmp11 |
+ addps xmm6,xmm0 ; xmm6=tmp12, xmm0=tmp7 |
+ |
+ mulps xmm3,[GOTOFF(ebx,PD_0_707)] ; xmm3=z3 |
+ |
+ movaps xmm1,xmm2 ; xmm1=tmp10 |
+ subps xmm2,xmm6 |
+ mulps xmm2,[GOTOFF(ebx,PD_0_382)] ; xmm2=z5 |
+ mulps xmm1,[GOTOFF(ebx,PD_0_541)] ; xmm1=MULTIPLY(tmp10,FIX_0_541196) |
+ mulps xmm6,[GOTOFF(ebx,PD_1_306)] ; xmm6=MULTIPLY(tmp12,FIX_1_306562) |
+ addps xmm1,xmm2 ; xmm1=z2 |
+ addps xmm6,xmm2 ; xmm6=z4 |
+ |
+ movaps xmm5,xmm0 |
+ subps xmm0,xmm3 ; xmm0=z13 |
+ addps xmm5,xmm3 ; xmm5=z11 |
+ |
+ movaps xmm7,xmm0 |
+ movaps xmm4,xmm5 |
+ subps xmm0,xmm1 ; xmm0=data3 |
+ subps xmm5,xmm6 ; xmm5=data7 |
+ addps xmm7,xmm1 ; xmm7=data5 |
+ addps xmm4,xmm6 ; xmm4=data1 |
+ |
+ movaps XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)], xmm0 |
+ movaps XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)], xmm5 |
+ movaps XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)], xmm7 |
+ movaps XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], xmm4 |
+ |
+ add edx, byte 4*SIZEOF_FAST_FLOAT |
+ dec ecx |
+ jnz near .columnloop |
+ |
+; pop edi ; unused |
+; pop esi ; unused |
+; pop edx ; need not be preserved |
+; pop ecx ; need not be preserved |
+ poppic ebx |
+ mov esp,ebp ; esp <- aligned ebp |
+ pop esp ; esp <- original ebp |
+ pop ebp |
+ ret |
+ |
+; For some reason, the OS X linker does not honor the request to align the |
+; segment unless we do this. |
+ align 16 |