xref: /aosp_15_r20/external/libjpeg-turbo/simd/i386/jquanti-sse2.asm (revision dfc6aa5c1cfd4bc4e2018dc74aa96e29ee49c6da)
1*dfc6aa5cSAndroid Build Coastguard Worker;
2*dfc6aa5cSAndroid Build Coastguard Worker; jquanti.asm - sample data conversion and quantization (SSE2)
3*dfc6aa5cSAndroid Build Coastguard Worker;
4*dfc6aa5cSAndroid Build Coastguard Worker; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
5*dfc6aa5cSAndroid Build Coastguard Worker; Copyright (C) 2016, D. R. Commander.
6*dfc6aa5cSAndroid Build Coastguard Worker;
7*dfc6aa5cSAndroid Build Coastguard Worker; Based on the x86 SIMD extension for IJG JPEG library
8*dfc6aa5cSAndroid Build Coastguard Worker; Copyright (C) 1999-2006, MIYASAKA Masaru.
9*dfc6aa5cSAndroid Build Coastguard Worker; For conditions of distribution and use, see copyright notice in jsimdext.inc
10*dfc6aa5cSAndroid Build Coastguard Worker;
11*dfc6aa5cSAndroid Build Coastguard Worker; This file should be assembled with NASM (Netwide Assembler),
12*dfc6aa5cSAndroid Build Coastguard Worker; can *not* be assembled with Microsoft's MASM or any compatible
13*dfc6aa5cSAndroid Build Coastguard Worker; assembler (including Borland's Turbo Assembler).
14*dfc6aa5cSAndroid Build Coastguard Worker; NASM is available from http://nasm.sourceforge.net/ or
15*dfc6aa5cSAndroid Build Coastguard Worker; http://sourceforge.net/project/showfiles.php?group_id=6208
16*dfc6aa5cSAndroid Build Coastguard Worker
17*dfc6aa5cSAndroid Build Coastguard Worker%include "jsimdext.inc"
18*dfc6aa5cSAndroid Build Coastguard Worker%include "jdct.inc"
19*dfc6aa5cSAndroid Build Coastguard Worker
20*dfc6aa5cSAndroid Build Coastguard Worker; --------------------------------------------------------------------------
21*dfc6aa5cSAndroid Build Coastguard Worker    SECTION     SEG_TEXT
22*dfc6aa5cSAndroid Build Coastguard Worker    BITS        32
23*dfc6aa5cSAndroid Build Coastguard Worker;
24*dfc6aa5cSAndroid Build Coastguard Worker; Load data into workspace, applying unsigned->signed conversion
25*dfc6aa5cSAndroid Build Coastguard Worker;
26*dfc6aa5cSAndroid Build Coastguard Worker; GLOBAL(void)
27*dfc6aa5cSAndroid Build Coastguard Worker; jsimd_convsamp_sse2(JSAMPARRAY sample_data, JDIMENSION start_col,
28*dfc6aa5cSAndroid Build Coastguard Worker;                     DCTELEM *workspace);
29*dfc6aa5cSAndroid Build Coastguard Worker;
30*dfc6aa5cSAndroid Build Coastguard Worker
31*dfc6aa5cSAndroid Build Coastguard Worker%define sample_data  ebp + 8            ; JSAMPARRAY sample_data
32*dfc6aa5cSAndroid Build Coastguard Worker%define start_col    ebp + 12           ; JDIMENSION start_col
33*dfc6aa5cSAndroid Build Coastguard Worker%define workspace    ebp + 16           ; DCTELEM *workspace
34*dfc6aa5cSAndroid Build Coastguard Worker
35*dfc6aa5cSAndroid Build Coastguard Worker    align       32
36*dfc6aa5cSAndroid Build Coastguard Worker    GLOBAL_FUNCTION(jsimd_convsamp_sse2)
37*dfc6aa5cSAndroid Build Coastguard Worker
38*dfc6aa5cSAndroid Build Coastguard WorkerEXTN(jsimd_convsamp_sse2):
39*dfc6aa5cSAndroid Build Coastguard Worker    push        ebp
40*dfc6aa5cSAndroid Build Coastguard Worker    mov         ebp, esp
41*dfc6aa5cSAndroid Build Coastguard Worker    push        ebx
42*dfc6aa5cSAndroid Build Coastguard Worker;   push        ecx                     ; need not be preserved
43*dfc6aa5cSAndroid Build Coastguard Worker;   push        edx                     ; need not be preserved
44*dfc6aa5cSAndroid Build Coastguard Worker    push        esi
45*dfc6aa5cSAndroid Build Coastguard Worker    push        edi
46*dfc6aa5cSAndroid Build Coastguard Worker
47*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm6, xmm6              ; xmm6=(all 0's)
48*dfc6aa5cSAndroid Build Coastguard Worker    pcmpeqw     xmm7, xmm7
49*dfc6aa5cSAndroid Build Coastguard Worker    psllw       xmm7, 7                 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
50*dfc6aa5cSAndroid Build Coastguard Worker
51*dfc6aa5cSAndroid Build Coastguard Worker    mov         esi, JSAMPARRAY [sample_data]  ; (JSAMPROW *)
52*dfc6aa5cSAndroid Build Coastguard Worker    mov         eax, JDIMENSION [start_col]
53*dfc6aa5cSAndroid Build Coastguard Worker    mov         edi, POINTER [workspace]       ; (DCTELEM *)
54*dfc6aa5cSAndroid Build Coastguard Worker    mov         ecx, DCTSIZE/4
55*dfc6aa5cSAndroid Build Coastguard Worker    alignx      16, 7
56*dfc6aa5cSAndroid Build Coastguard Worker.convloop:
57*dfc6aa5cSAndroid Build Coastguard Worker    mov         ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW]  ; (JSAMPLE *)
58*dfc6aa5cSAndroid Build Coastguard Worker    mov         edx, JSAMPROW [esi+1*SIZEOF_JSAMPROW]  ; (JSAMPLE *)
59*dfc6aa5cSAndroid Build Coastguard Worker
60*dfc6aa5cSAndroid Build Coastguard Worker    movq        xmm0, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]  ; xmm0=(01234567)
61*dfc6aa5cSAndroid Build Coastguard Worker    movq        xmm1, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]  ; xmm1=(89ABCDEF)
62*dfc6aa5cSAndroid Build Coastguard Worker
63*dfc6aa5cSAndroid Build Coastguard Worker    mov         ebx, JSAMPROW [esi+2*SIZEOF_JSAMPROW]  ; (JSAMPLE *)
64*dfc6aa5cSAndroid Build Coastguard Worker    mov         edx, JSAMPROW [esi+3*SIZEOF_JSAMPROW]  ; (JSAMPLE *)
65*dfc6aa5cSAndroid Build Coastguard Worker
66*dfc6aa5cSAndroid Build Coastguard Worker    movq        xmm2, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]  ; xmm2=(GHIJKLMN)
67*dfc6aa5cSAndroid Build Coastguard Worker    movq        xmm3, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]  ; xmm3=(OPQRSTUV)
68*dfc6aa5cSAndroid Build Coastguard Worker
69*dfc6aa5cSAndroid Build Coastguard Worker    punpcklbw   xmm0, xmm6              ; xmm0=(01234567)
70*dfc6aa5cSAndroid Build Coastguard Worker    punpcklbw   xmm1, xmm6              ; xmm1=(89ABCDEF)
71*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm0, xmm7
72*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm1, xmm7
73*dfc6aa5cSAndroid Build Coastguard Worker    punpcklbw   xmm2, xmm6              ; xmm2=(GHIJKLMN)
74*dfc6aa5cSAndroid Build Coastguard Worker    punpcklbw   xmm3, xmm6              ; xmm3=(OPQRSTUV)
75*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm2, xmm7
76*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm3, xmm7
77*dfc6aa5cSAndroid Build Coastguard Worker
78*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], xmm0
79*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_DCTELEM)], xmm1
80*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], xmm2
81*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_DCTELEM)], xmm3
82*dfc6aa5cSAndroid Build Coastguard Worker
83*dfc6aa5cSAndroid Build Coastguard Worker    add         esi, byte 4*SIZEOF_JSAMPROW
84*dfc6aa5cSAndroid Build Coastguard Worker    add         edi, byte 4*DCTSIZE*SIZEOF_DCTELEM
85*dfc6aa5cSAndroid Build Coastguard Worker    dec         ecx
86*dfc6aa5cSAndroid Build Coastguard Worker    jnz         short .convloop
87*dfc6aa5cSAndroid Build Coastguard Worker
88*dfc6aa5cSAndroid Build Coastguard Worker    pop         edi
89*dfc6aa5cSAndroid Build Coastguard Worker    pop         esi
90*dfc6aa5cSAndroid Build Coastguard Worker;   pop         edx                     ; need not be preserved
91*dfc6aa5cSAndroid Build Coastguard Worker;   pop         ecx                     ; need not be preserved
92*dfc6aa5cSAndroid Build Coastguard Worker    pop         ebx
93*dfc6aa5cSAndroid Build Coastguard Worker    pop         ebp
94*dfc6aa5cSAndroid Build Coastguard Worker    ret
95*dfc6aa5cSAndroid Build Coastguard Worker
96*dfc6aa5cSAndroid Build Coastguard Worker; --------------------------------------------------------------------------
97*dfc6aa5cSAndroid Build Coastguard Worker;
98*dfc6aa5cSAndroid Build Coastguard Worker; Quantize/descale the coefficients, and store into coef_block
99*dfc6aa5cSAndroid Build Coastguard Worker;
100*dfc6aa5cSAndroid Build Coastguard Worker; This implementation is based on an algorithm described in
101*dfc6aa5cSAndroid Build Coastguard Worker;   "How to optimize for the Pentium family of microprocessors"
102*dfc6aa5cSAndroid Build Coastguard Worker;   (http://www.agner.org/assem/).
103*dfc6aa5cSAndroid Build Coastguard Worker;
104*dfc6aa5cSAndroid Build Coastguard Worker; GLOBAL(void)
105*dfc6aa5cSAndroid Build Coastguard Worker; jsimd_quantize_sse2(JCOEFPTR coef_block, DCTELEM *divisors,
106*dfc6aa5cSAndroid Build Coastguard Worker;                     DCTELEM *workspace);
107*dfc6aa5cSAndroid Build Coastguard Worker;
108*dfc6aa5cSAndroid Build Coastguard Worker
109*dfc6aa5cSAndroid Build Coastguard Worker%define RECIPROCAL(m, n, b) \
110*dfc6aa5cSAndroid Build Coastguard Worker  XMMBLOCK(DCTSIZE * 0 + (m), (n), (b), SIZEOF_DCTELEM)
111*dfc6aa5cSAndroid Build Coastguard Worker%define CORRECTION(m, n, b) \
112*dfc6aa5cSAndroid Build Coastguard Worker  XMMBLOCK(DCTSIZE * 1 + (m), (n), (b), SIZEOF_DCTELEM)
113*dfc6aa5cSAndroid Build Coastguard Worker%define SCALE(m, n, b) \
114*dfc6aa5cSAndroid Build Coastguard Worker  XMMBLOCK(DCTSIZE * 2 + (m), (n), (b), SIZEOF_DCTELEM)
115*dfc6aa5cSAndroid Build Coastguard Worker
116*dfc6aa5cSAndroid Build Coastguard Worker%define coef_block  ebp + 8             ; JCOEFPTR coef_block
117*dfc6aa5cSAndroid Build Coastguard Worker%define divisors    ebp + 12            ; DCTELEM *divisors
118*dfc6aa5cSAndroid Build Coastguard Worker%define workspace   ebp + 16            ; DCTELEM *workspace
119*dfc6aa5cSAndroid Build Coastguard Worker
120*dfc6aa5cSAndroid Build Coastguard Worker    align       32
121*dfc6aa5cSAndroid Build Coastguard Worker    GLOBAL_FUNCTION(jsimd_quantize_sse2)
122*dfc6aa5cSAndroid Build Coastguard Worker
123*dfc6aa5cSAndroid Build Coastguard WorkerEXTN(jsimd_quantize_sse2):
124*dfc6aa5cSAndroid Build Coastguard Worker    push        ebp
125*dfc6aa5cSAndroid Build Coastguard Worker    mov         ebp, esp
126*dfc6aa5cSAndroid Build Coastguard Worker;   push        ebx                     ; unused
127*dfc6aa5cSAndroid Build Coastguard Worker;   push        ecx                     ; unused
128*dfc6aa5cSAndroid Build Coastguard Worker;   push        edx                     ; need not be preserved
129*dfc6aa5cSAndroid Build Coastguard Worker    push        esi
130*dfc6aa5cSAndroid Build Coastguard Worker    push        edi
131*dfc6aa5cSAndroid Build Coastguard Worker
132*dfc6aa5cSAndroid Build Coastguard Worker    mov         esi, POINTER [workspace]
133*dfc6aa5cSAndroid Build Coastguard Worker    mov         edx, POINTER [divisors]
134*dfc6aa5cSAndroid Build Coastguard Worker    mov         edi, JCOEFPTR [coef_block]
135*dfc6aa5cSAndroid Build Coastguard Worker    mov         eax, DCTSIZE2/32
136*dfc6aa5cSAndroid Build Coastguard Worker    alignx      16, 7
137*dfc6aa5cSAndroid Build Coastguard Worker.quantloop:
138*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm4, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_DCTELEM)]
139*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm5, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_DCTELEM)]
140*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm6, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_DCTELEM)]
141*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm7, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_DCTELEM)]
142*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm0, xmm4
143*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm1, xmm5
144*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm2, xmm6
145*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      xmm3, xmm7
146*dfc6aa5cSAndroid Build Coastguard Worker    psraw       xmm4, (WORD_BIT-1)
147*dfc6aa5cSAndroid Build Coastguard Worker    psraw       xmm5, (WORD_BIT-1)
148*dfc6aa5cSAndroid Build Coastguard Worker    psraw       xmm6, (WORD_BIT-1)
149*dfc6aa5cSAndroid Build Coastguard Worker    psraw       xmm7, (WORD_BIT-1)
150*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm0, xmm4
151*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm1, xmm5
152*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm2, xmm6
153*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm3, xmm7
154*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm0, xmm4              ; if (xmm0 < 0) xmm0 = -xmm0;
155*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm1, xmm5              ; if (xmm1 < 0) xmm1 = -xmm1;
156*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm2, xmm6              ; if (xmm2 < 0) xmm2 = -xmm2;
157*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm3, xmm7              ; if (xmm3 < 0) xmm3 = -xmm3;
158*dfc6aa5cSAndroid Build Coastguard Worker
159*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm0, XMMWORD [CORRECTION(0,0,edx)]  ; correction + roundfactor
160*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm1, XMMWORD [CORRECTION(1,0,edx)]
161*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm2, XMMWORD [CORRECTION(2,0,edx)]
162*dfc6aa5cSAndroid Build Coastguard Worker    paddw       xmm3, XMMWORD [CORRECTION(3,0,edx)]
163*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm0, XMMWORD [RECIPROCAL(0,0,edx)]  ; reciprocal
164*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm1, XMMWORD [RECIPROCAL(1,0,edx)]
165*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm2, XMMWORD [RECIPROCAL(2,0,edx)]
166*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm3, XMMWORD [RECIPROCAL(3,0,edx)]
167*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm0, XMMWORD [SCALE(0,0,edx)]       ; scale
168*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm1, XMMWORD [SCALE(1,0,edx)]
169*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm2, XMMWORD [SCALE(2,0,edx)]
170*dfc6aa5cSAndroid Build Coastguard Worker    pmulhuw     xmm3, XMMWORD [SCALE(3,0,edx)]
171*dfc6aa5cSAndroid Build Coastguard Worker
172*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm0, xmm4
173*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm1, xmm5
174*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm2, xmm6
175*dfc6aa5cSAndroid Build Coastguard Worker    pxor        xmm3, xmm7
176*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm0, xmm4
177*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm1, xmm5
178*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm2, xmm6
179*dfc6aa5cSAndroid Build Coastguard Worker    psubw       xmm3, xmm7
180*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], xmm0
181*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_DCTELEM)], xmm1
182*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], xmm2
183*dfc6aa5cSAndroid Build Coastguard Worker    movdqa      XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_DCTELEM)], xmm3
184*dfc6aa5cSAndroid Build Coastguard Worker
185*dfc6aa5cSAndroid Build Coastguard Worker    add         esi, byte 32*SIZEOF_DCTELEM
186*dfc6aa5cSAndroid Build Coastguard Worker    add         edx, byte 32*SIZEOF_DCTELEM
187*dfc6aa5cSAndroid Build Coastguard Worker    add         edi, byte 32*SIZEOF_JCOEF
188*dfc6aa5cSAndroid Build Coastguard Worker    dec         eax
189*dfc6aa5cSAndroid Build Coastguard Worker    jnz         near .quantloop
190*dfc6aa5cSAndroid Build Coastguard Worker
191*dfc6aa5cSAndroid Build Coastguard Worker    pop         edi
192*dfc6aa5cSAndroid Build Coastguard Worker    pop         esi
193*dfc6aa5cSAndroid Build Coastguard Worker;   pop         edx                     ; need not be preserved
194*dfc6aa5cSAndroid Build Coastguard Worker;   pop         ecx                     ; unused
195*dfc6aa5cSAndroid Build Coastguard Worker;   pop         ebx                     ; unused
196*dfc6aa5cSAndroid Build Coastguard Worker    pop         ebp
197*dfc6aa5cSAndroid Build Coastguard Worker    ret
198*dfc6aa5cSAndroid Build Coastguard Worker
199*dfc6aa5cSAndroid Build Coastguard Worker; For some reason, the OS X linker does not honor the request to align the
200*dfc6aa5cSAndroid Build Coastguard Worker; segment unless we do this.
201*dfc6aa5cSAndroid Build Coastguard Worker    align       32
202