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; * XVID MPEG-4 VIDEO CODEC |
; * XVID MPEG-4 VIDEO CODEC |
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; * - MMX CBP computation - |
; * - MMX CBP computation - |
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; * |
; * |
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; * Copyright (C) 2001-2003 Peter Ross <pross@xvid.org> |
; * Copyright (C) 2005 Carlo Bramini <carlo.bramix@libero.it> |
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; * 2001-2003 Peter Ross <pross@xvid.org> |
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; * 2002-2003 Pascal Massimino <skal@planet-d.net> |
; * 2002-2003 Pascal Massimino <skal@planet-d.net> |
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; * |
; * |
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; * This program is free software ; you can redistribute it and/or modify |
; * This program is free software ; you can redistribute it and/or modify |
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%macro cglobal 1 |
%macro cglobal 1 |
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%ifdef PREFIX |
%ifdef PREFIX |
36 |
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%ifdef MARK_FUNCS |
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global _%1:function %1.endfunc-%1 |
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%define %1 _%1:function %1.endfunc-%1 |
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%else |
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global _%1 |
global _%1 |
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%define %1 _%1 |
%define %1 _%1 |
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%endif |
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%else |
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%ifdef MARK_FUNCS |
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global %1:function %1.endfunc-%1 |
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%else |
%else |
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global %1 |
global %1 |
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%endif |
%endif |
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%endif |
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%endmacro |
%endmacro |
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;============================================================================= |
;============================================================================= |
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ALIGN 16 |
ALIGN 16 |
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mult_mask: |
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db 0x10,0x20,0x04,0x08,0x01,0x02,0x00,0x00 |
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ignore_dc: |
ignore_dc: |
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dw 0, -1, -1, -1, -1, -1, -1, -1 |
dw 0, -1, -1, -1 |
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;============================================================================= |
;============================================================================= |
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; Code |
; Code |
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; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); |
; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); |
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;----------------------------------------------------------------------------- |
;----------------------------------------------------------------------------- |
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%macro MAKE_LOAD 1 |
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por mm0, [eax-128*1+%1*8] |
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por mm1, [eax+128*0+%1*8] |
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por mm2, [eax+128*1+%1*8] |
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por mm3, [eax+128*2+%1*8] |
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por mm4, [eax+128*3+%1*8] |
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por mm5, [eax+128*4+%1*8] |
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%endmacro |
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ALIGN 16 |
ALIGN 16 |
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calc_cbp_mmx: |
calc_cbp_mmx: |
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push ebx |
mov eax, [esp + 4] ; coeff |
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push esi |
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mov esi, [esp + 8 + 4] ; coeff |
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xor eax, eax ; cbp = 0 |
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mov edx, (1 << 5) |
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movq mm7, [ignore_dc] |
movq mm7, [ignore_dc] |
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pxor mm6, mm6 ; used only for comparing |
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.loop |
movq mm0, [eax+128*0] |
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movq mm0, [esi] |
movq mm1, [eax+128*1] |
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movq mm1, [esi+8] |
movq mm2, [eax+128*2] |
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movq mm3, [eax+128*3] |
100 |
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movq mm4, [eax+128*4] |
101 |
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movq mm5, [eax+128*5] |
102 |
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add eax, 8+128 |
103 |
pand mm0, mm7 |
pand mm0, mm7 |
104 |
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pand mm1, mm7 |
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pand mm2, mm7 |
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pand mm3, mm7 |
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pand mm4, mm7 |
108 |
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pand mm5, mm7 |
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110 |
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MAKE_LOAD 0 |
111 |
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MAKE_LOAD 1 |
112 |
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MAKE_LOAD 2 |
113 |
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MAKE_LOAD 3 |
114 |
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MAKE_LOAD 4 |
115 |
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MAKE_LOAD 5 |
116 |
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MAKE_LOAD 6 |
117 |
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MAKE_LOAD 7 |
118 |
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MAKE_LOAD 8 |
119 |
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MAKE_LOAD 9 |
120 |
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MAKE_LOAD 10 |
121 |
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MAKE_LOAD 11 |
122 |
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MAKE_LOAD 12 |
123 |
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MAKE_LOAD 13 |
124 |
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MAKE_LOAD 14 |
125 |
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126 |
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movq mm7, [mult_mask] |
127 |
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packssdw mm0, mm1 |
128 |
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packssdw mm2, mm3 |
129 |
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packssdw mm4, mm5 |
130 |
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packssdw mm0, mm2 |
131 |
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packssdw mm4, mm6 |
132 |
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pcmpeqw mm0, mm6 |
133 |
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pcmpeqw mm4, mm6 |
134 |
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pcmpeqw mm0, mm6 |
135 |
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pcmpeqw mm4, mm6 |
136 |
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psrlw mm0, 15 |
137 |
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psrlw mm4, 15 |
138 |
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packuswb mm0, mm4 |
139 |
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pmaddwd mm0, mm7 |
140 |
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por mm0, [esi+16] |
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por mm1, [esi+24] |
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por mm0, [esi+32] |
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por mm1, [esi+40] |
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por mm0, [esi+48] |
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por mm1, [esi+56] |
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por mm0, [esi+64] |
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por mm1, [esi+72] |
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por mm0, [esi+80] |
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por mm1, [esi+88] |
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por mm0, [esi+96] |
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por mm1, [esi+104] |
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por mm0, [esi+112] |
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por mm1, [esi+120] |
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por mm0, mm1 |
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141 |
movq mm1, mm0 |
movq mm1, mm0 |
142 |
psrlq mm1, 32 |
psrlq mm1, 32 |
143 |
lea esi, [esi + 128] |
paddusb mm0, mm1 |
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por mm0, mm1 |
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movd ebx, mm0 |
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test ebx, ebx |
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jz .next |
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or eax, edx ; cbp |= 1 << (5-i) |
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.next |
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shr edx,1 |
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jnc .loop |
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pop esi |
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pop ebx |
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144 |
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145 |
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movd eax, mm0 |
146 |
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shr eax, 8 |
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and eax, 0x3F |
148 |
ret |
ret |
149 |
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.endfunc |
150 |
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