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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 | 1795 | ; * $Id: postprocessing_mmx.asm,v 1.7 2008-11-26 01:04:34 Isibaar Exp $ |
| 23 : | suxen_drol | 1397 | ; * |
| 24 : | ; *************************************************************************/ | ||
| 25 : | |||
| 26 : | Isibaar | 1795 | %include "nasm.inc" |
| 27 : | suxen_drol | 1397 | |
| 28 : | ;=========================================================================== | ||
| 29 : | ; read only data | ||
| 30 : | ;=========================================================================== | ||
| 31 : | |||
| 32 : | Isibaar | 1795 | DATA |
| 33 : | suxen_drol | 1397 | |
| 34 : | mmx_0x80: | ||
| 35 : | times 8 db 0x80 | ||
| 36 : | |||
| 37 : | mmx_offset: | ||
| 38 : | %assign i -128 | ||
| 39 : | %rep 256 | ||
| 40 : | times 8 db i | ||
| 41 : | %assign i i+1 | ||
| 42 : | %endrep | ||
| 43 : | |||
| 44 : | |||
| 45 : | ;============================================================================= | ||
| 46 : | ; Code | ||
| 47 : | ;============================================================================= | ||
| 48 : | |||
| 49 : | Isibaar | 1795 | SECTION .rotext align=SECTION_ALIGN |
| 50 : | suxen_drol | 1397 | |
| 51 : | cglobal image_brightness_mmx | ||
| 52 : | |||
| 53 : | |||
| 54 : | ;////////////////////////////////////////////////////////////////////// | ||
| 55 : | ;// image_brightness_mmx | ||
| 56 : | ;////////////////////////////////////////////////////////////////////// | ||
| 57 : | |||
| 58 : | Isibaar | 1795 | align SECTION_ALIGN |
| 59 : | suxen_drol | 1397 | image_brightness_mmx: |
| 60 : | |||
| 61 : | movq mm6, [mmx_0x80] | ||
| 62 : | |||
| 63 : | Isibaar | 1795 | mov eax, prm5d ; offset |
| 64 : | %ifdef ARCH_IS_X86_64 | ||
| 65 : | lea r9, [mmx_offset] | ||
| 66 : | movq mm7, [r9 + (_EAX + 128)*8] ; being lazy | ||
| 67 : | %else | ||
| 68 : | movq mm7, [mmx_offset + (_EAX + 128)*8] ; being lazy | ||
| 69 : | %endif | ||
| 70 : | suxen_drol | 1397 | |
| 71 : | Isibaar | 1795 | mov TMP1, prm1 ; Dst |
| 72 : | mov TMP0, prm2 ; stride | ||
| 73 : | suxen_drol | 1397 | |
| 74 : | Isibaar | 1795 | push _ESI |
| 75 : | push _EDI | ||
| 76 : | %ifdef ARCH_IS_X86_64 | ||
| 77 : | mov _ESI, prm3 | ||
| 78 : | mov _EDI, prm4 | ||
| 79 : | %else | ||
| 80 : | mov _ESI, [_ESP+8+12] ; width | ||
| 81 : | mov _EDI, [_ESP+8+16] ; height | ||
| 82 : | %endif | ||
| 83 : | |||
| 84 : | Isibaar | 1793 | .yloop: |
| 85 : | Isibaar | 1795 | xor _EAX, _EAX |
| 86 : | suxen_drol | 1397 | |
| 87 : | Isibaar | 1793 | .xloop: |
| 88 : | Isibaar | 1795 | movq mm0, [TMP1 + _EAX] |
| 89 : | movq mm1, [TMP1 + _EAX + 8] ; mm0 = [dst] | ||
| 90 : | suxen_drol | 1397 | |
| 91 : | paddb mm0, mm6 ; unsigned -> signed domain | ||
| 92 : | paddb mm1, mm6 | ||
| 93 : | paddsb mm0, mm7 | ||
| 94 : | paddsb mm1, mm7 ; mm0 += offset | ||
| 95 : | psubb mm0, mm6 | ||
| 96 : | psubb mm1, mm6 ; signed -> unsigned domain | ||
| 97 : | |||
| 98 : | Isibaar | 1795 | movq [TMP1 + _EAX], mm0 |
| 99 : | movq [TMP1 + _EAX + 8], mm1 ; [dst] = mm0 | ||
| 100 : | suxen_drol | 1397 | |
| 101 : | Isibaar | 1795 | add _EAX,16 |
| 102 : | cmp _EAX,_ESI | ||
| 103 : | suxen_drol | 1397 | jl .xloop |
| 104 : | |||
| 105 : | Isibaar | 1795 | add TMP1, TMP0 ; dst += stride |
| 106 : | sub _EDI, 1 | ||
| 107 : | suxen_drol | 1397 | jg .yloop |
| 108 : | |||
| 109 : | Isibaar | 1795 | pop _EDI |
| 110 : | pop _ESI | ||
| 111 : | suxen_drol | 1397 | |
| 112 : | ret | ||
| 113 : | Isibaar | 1793 | ENDFUNC |
| 114 : | suxen_drol | 1397 | ;////////////////////////////////////////////////////////////////////// |
| 115 : | Isibaar | 1790 | |
| 116 : | %ifidn __OUTPUT_FORMAT__,elf | ||
| 117 : | section ".note.GNU-stack" noalloc noexec nowrite progbits | ||
| 118 : | %endif | ||
| 119 : |
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