Index: simd/jquantf-sse2-64.asm |
diff --git a/simd/jquantf-sse2-64.asm b/simd/jquantf-sse2-64.asm |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8af256c412ae93ed8cb104eace0f0fdf674d8828 |
--- /dev/null |
+++ b/simd/jquantf-sse2-64.asm |
@@ -0,0 +1,158 @@ |
+; |
+; jquantf.asm - sample data conversion and quantization (64-bit SSE & SSE2) |
+; |
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB |
+; Copyright 2009 D. R. Commander |
+; |
+; 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 |
+; |
+; [TAB8] |
+ |
+%include "jsimdext.inc" |
+%include "jdct.inc" |
+ |
+; -------------------------------------------------------------------------- |
+ SECTION SEG_TEXT |
+ BITS 64 |
+; |
+; Load data into workspace, applying unsigned->signed conversion |
+; |
+; GLOBAL(void) |
+; jsimd_convsamp_float_sse2 (JSAMPARRAY sample_data, JDIMENSION start_col, |
+; FAST_FLOAT *workspace); |
+; |
+ |
+; r10 = JSAMPARRAY sample_data |
+; r11 = JDIMENSION start_col |
+; r12 = FAST_FLOAT *workspace |
+ |
+ align 16 |
+ global EXTN(jsimd_convsamp_float_sse2) |
+ |
+EXTN(jsimd_convsamp_float_sse2): |
+ push rbp |
+ mov rax,rsp |
+ mov rbp,rsp |
+ collect_args |
+ push rbx |
+ |
+ pcmpeqw xmm7,xmm7 |
+ psllw xmm7,7 |
+ packsswb xmm7,xmm7 ; xmm7 = PB_CENTERJSAMPLE (0x808080..) |
+ |
+ mov rsi, r10 |
+ mov eax, r11d |
+ mov rdi, r12 |
+ mov rcx, DCTSIZE/2 |
+.convloop: |
+ mov rbx, JSAMPROW [rsi+0*SIZEOF_JSAMPROW] ; (JSAMPLE *) |
+ mov rdx, JSAMPROW [rsi+1*SIZEOF_JSAMPROW] ; (JSAMPLE *) |
+ |
+ movq xmm0, XMM_MMWORD [rbx+rax*SIZEOF_JSAMPLE] |
+ movq xmm1, XMM_MMWORD [rdx+rax*SIZEOF_JSAMPLE] |
+ |
+ psubb xmm0,xmm7 ; xmm0=(01234567) |
+ psubb xmm1,xmm7 ; xmm1=(89ABCDEF) |
+ |
+ punpcklbw xmm0,xmm0 ; xmm0=(*0*1*2*3*4*5*6*7) |
+ punpcklbw xmm1,xmm1 ; xmm1=(*8*9*A*B*C*D*E*F) |
+ |
+ punpcklwd xmm2,xmm0 ; xmm2=(***0***1***2***3) |
+ punpckhwd xmm0,xmm0 ; xmm0=(***4***5***6***7) |
+ punpcklwd xmm3,xmm1 ; xmm3=(***8***9***A***B) |
+ punpckhwd xmm1,xmm1 ; xmm1=(***C***D***E***F) |
+ |
+ psrad xmm2,(DWORD_BIT-BYTE_BIT) ; xmm2=(0123) |
+ psrad xmm0,(DWORD_BIT-BYTE_BIT) ; xmm0=(4567) |
+ cvtdq2ps xmm2,xmm2 ; xmm2=(0123) |
+ cvtdq2ps xmm0,xmm0 ; xmm0=(4567) |
+ psrad xmm3,(DWORD_BIT-BYTE_BIT) ; xmm3=(89AB) |
+ psrad xmm1,(DWORD_BIT-BYTE_BIT) ; xmm1=(CDEF) |
+ cvtdq2ps xmm3,xmm3 ; xmm3=(89AB) |
+ cvtdq2ps xmm1,xmm1 ; xmm1=(CDEF) |
+ |
+ movaps XMMWORD [XMMBLOCK(0,0,rdi,SIZEOF_FAST_FLOAT)], xmm2 |
+ movaps XMMWORD [XMMBLOCK(0,1,rdi,SIZEOF_FAST_FLOAT)], xmm0 |
+ movaps XMMWORD [XMMBLOCK(1,0,rdi,SIZEOF_FAST_FLOAT)], xmm3 |
+ movaps XMMWORD [XMMBLOCK(1,1,rdi,SIZEOF_FAST_FLOAT)], xmm1 |
+ |
+ add rsi, byte 2*SIZEOF_JSAMPROW |
+ add rdi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT |
+ dec rcx |
+ jnz short .convloop |
+ |
+ pop rbx |
+ uncollect_args |
+ pop rbp |
+ ret |
+ |
+ |
+; -------------------------------------------------------------------------- |
+; |
+; Quantize/descale the coefficients, and store into coef_block |
+; |
+; GLOBAL(void) |
+; jsimd_quantize_float_sse2 (JCOEFPTR coef_block, FAST_FLOAT *divisors, |
+; FAST_FLOAT *workspace); |
+; |
+ |
+; r10 = JCOEFPTR coef_block |
+; r11 = FAST_FLOAT *divisors |
+; r12 = FAST_FLOAT *workspace |
+ |
+ align 16 |
+ global EXTN(jsimd_quantize_float_sse2) |
+ |
+EXTN(jsimd_quantize_float_sse2): |
+ push rbp |
+ mov rax,rsp |
+ mov rbp,rsp |
+ collect_args |
+ |
+ mov rsi, r12 |
+ mov rdx, r11 |
+ mov rdi, r10 |
+ mov rax, DCTSIZE2/16 |
+.quantloop: |
+ movaps xmm0, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_FAST_FLOAT)] |
+ movaps xmm1, XMMWORD [XMMBLOCK(0,1,rsi,SIZEOF_FAST_FLOAT)] |
+ mulps xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FAST_FLOAT)] |
+ mulps xmm1, XMMWORD [XMMBLOCK(0,1,rdx,SIZEOF_FAST_FLOAT)] |
+ movaps xmm2, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_FAST_FLOAT)] |
+ movaps xmm3, XMMWORD [XMMBLOCK(1,1,rsi,SIZEOF_FAST_FLOAT)] |
+ mulps xmm2, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_FAST_FLOAT)] |
+ mulps xmm3, XMMWORD [XMMBLOCK(1,1,rdx,SIZEOF_FAST_FLOAT)] |
+ |
+ cvtps2dq xmm0,xmm0 |
+ cvtps2dq xmm1,xmm1 |
+ cvtps2dq xmm2,xmm2 |
+ cvtps2dq xmm3,xmm3 |
+ |
+ packssdw xmm0,xmm1 |
+ packssdw xmm2,xmm3 |
+ |
+ movdqa XMMWORD [XMMBLOCK(0,0,rdi,SIZEOF_JCOEF)], xmm0 |
+ movdqa XMMWORD [XMMBLOCK(1,0,rdi,SIZEOF_JCOEF)], xmm2 |
+ |
+ add rsi, byte 16*SIZEOF_FAST_FLOAT |
+ add rdx, byte 16*SIZEOF_FAST_FLOAT |
+ add rdi, byte 16*SIZEOF_JCOEF |
+ dec rax |
+ jnz short .quantloop |
+ |
+ uncollect_args |
+ pop rbp |
+ ret |
+ |
+; For some reason, the OS X linker does not honor the request to align the |
+; segment unless we do this. |
+ align 16 |