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| 1 : | suxen_drol | 1397 | ;/***************************************************************************** |
| 2 : | ; * | ||
| 3 : | ; * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | ; * - mmx post processing - | ||
| 5 : | ; * | ||
| 6 : | ; * Copyright(C) 2004 Peter Ross <pross@xvid.org> | ||
| 7 : | ; * | ||
| 8 : | ; * XviD is free software; you can redistribute it and/or modify it | ||
| 9 : | ; * under the terms of the GNU General Public License as published by | ||
| 10 : | ; * the Free Software Foundation; either version 2 of the License, or | ||
| 11 : | ; * (at your option) any later version. | ||
| 12 : | ; * | ||
| 13 : | ; * This program is distributed in the hope that it will be useful, | ||
| 14 : | ; * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | ; * GNU General Public License for more details. | ||
| 17 : | ; * | ||
| 18 : | ; * You should have received a copy of the GNU General Public License | ||
| 19 : | ; * along with this program; if not, write to the Free Software | ||
| 20 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | ; * | ||
| 22 : | Isibaar | 1793 | ; * $Id: postprocessing_mmx.asm,v 1.6 2008-11-11 20:46:24 Isibaar Exp $ |
| 23 : | suxen_drol | 1397 | ; * |
| 24 : | ; *************************************************************************/ | ||
| 25 : | |||
| 26 : | BITS 32 | ||
| 27 : | |||
| 28 : | %macro cglobal 1 | ||
| 29 : | %ifdef PREFIX | ||
| 30 : | edgomez | 1535 | %ifdef MARK_FUNCS |
| 31 : | edgomez | 1540 | global _%1:function %1.endfunc-%1 |
| 32 : | %define %1 _%1:function %1.endfunc-%1 | ||
| 33 : | Isibaar | 1793 | %define ENDFUNC .endfunc |
| 34 : | edgomez | 1535 | %else |
| 35 : | global _%1 | ||
| 36 : | %define %1 _%1 | ||
| 37 : | Isibaar | 1793 | %define ENDFUNC |
| 38 : | edgomez | 1535 | %endif |
| 39 : | suxen_drol | 1397 | %else |
| 40 : | edgomez | 1535 | %ifdef MARK_FUNCS |
| 41 : | edgomez | 1540 | global %1:function %1.endfunc-%1 |
| 42 : | Isibaar | 1793 | %define ENDFUNC .endfunc |
| 43 : | edgomez | 1535 | %else |
| 44 : | global %1 | ||
| 45 : | Isibaar | 1793 | %define ENDFUNC |
| 46 : | edgomez | 1535 | %endif |
| 47 : | suxen_drol | 1397 | %endif |
| 48 : | %endmacro | ||
| 49 : | |||
| 50 : | ;=========================================================================== | ||
| 51 : | ; read only data | ||
| 52 : | ;=========================================================================== | ||
| 53 : | |||
| 54 : | %ifdef FORMAT_COFF | ||
| 55 : | edgomez | 1519 | SECTION .rodata |
| 56 : | suxen_drol | 1397 | %else |
| 57 : | edgomez | 1519 | SECTION .rodata align=16 |
| 58 : | suxen_drol | 1397 | %endif |
| 59 : | |||
| 60 : | mmx_0x80: | ||
| 61 : | times 8 db 0x80 | ||
| 62 : | |||
| 63 : | mmx_offset: | ||
| 64 : | %assign i -128 | ||
| 65 : | %rep 256 | ||
| 66 : | times 8 db i | ||
| 67 : | %assign i i+1 | ||
| 68 : | %endrep | ||
| 69 : | |||
| 70 : | |||
| 71 : | ;============================================================================= | ||
| 72 : | ; Code | ||
| 73 : | ;============================================================================= | ||
| 74 : | |||
| 75 : | SECTION .text | ||
| 76 : | |||
| 77 : | cglobal image_brightness_mmx | ||
| 78 : | |||
| 79 : | |||
| 80 : | ;////////////////////////////////////////////////////////////////////// | ||
| 81 : | ;// image_brightness_mmx | ||
| 82 : | ;////////////////////////////////////////////////////////////////////// | ||
| 83 : | |||
| 84 : | align 16 | ||
| 85 : | image_brightness_mmx: | ||
| 86 : | |||
| 87 : | push esi | ||
| 88 : | push edi | ||
| 89 : | |||
| 90 : | movq mm6, [mmx_0x80] | ||
| 91 : | |||
| 92 : | mov eax, [esp+8+20] ; offset | ||
| 93 : | movq mm7, [mmx_offset + (eax + 128)*8] ; being lazy | ||
| 94 : | |||
| 95 : | mov edx, [esp+8+4] ; Dst | ||
| 96 : | mov ecx, [esp+8+8] ; stride | ||
| 97 : | mov esi, [esp+8+12] ; width | ||
| 98 : | mov edi, [esp+8+16] ; height | ||
| 99 : | |||
| 100 : | Isibaar | 1793 | .yloop: |
| 101 : | suxen_drol | 1397 | xor eax, eax |
| 102 : | |||
| 103 : | Isibaar | 1793 | .xloop: |
| 104 : | suxen_drol | 1397 | movq mm0, [edx + eax] |
| 105 : | movq mm1, [edx + eax + 8] ; mm0 = [dst] | ||
| 106 : | |||
| 107 : | paddb mm0, mm6 ; unsigned -> signed domain | ||
| 108 : | paddb mm1, mm6 | ||
| 109 : | paddsb mm0, mm7 | ||
| 110 : | paddsb mm1, mm7 ; mm0 += offset | ||
| 111 : | psubb mm0, mm6 | ||
| 112 : | psubb mm1, mm6 ; signed -> unsigned domain | ||
| 113 : | |||
| 114 : | movq [edx + eax], mm0 | ||
| 115 : | movq [edx + eax + 8], mm1 ; [dst] = mm0 | ||
| 116 : | |||
| 117 : | add eax,16 | ||
| 118 : | cmp eax,esi | ||
| 119 : | jl .xloop | ||
| 120 : | |||
| 121 : | add edx, ecx ; dst += stride | ||
| 122 : | sub edi, 1 | ||
| 123 : | jg .yloop | ||
| 124 : | |||
| 125 : | pop edi | ||
| 126 : | pop esi | ||
| 127 : | |||
| 128 : | ret | ||
| 129 : | Isibaar | 1793 | ENDFUNC |
| 130 : | suxen_drol | 1397 | ;////////////////////////////////////////////////////////////////////// |
| 131 : | Isibaar | 1790 | |
| 132 : | %ifidn __OUTPUT_FORMAT__,elf | ||
| 133 : | section ".note.GNU-stack" noalloc noexec nowrite progbits | ||
| 134 : | %endif | ||
| 135 : |
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