1 /* 2 * GStreamer 3 * Copyright (c) 2001 Tom Barry All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 /* 22 * Relicensed for GStreamer from GPL to LGPL with permit from Tom Barry. 23 * See: http://bugzilla.gnome.org/show_bug.cgi?id=163578 24 */ 25 26 // Define a few macros for CPU dependent instructions. 27 // I suspect I don't really understand how the C macro preprocessor works but 28 // this seems to get the job done. // TRB 7/01 29 30 // BEFORE USING THESE YOU MUST SET: 31 32 // #define SIMD_TYPE MMXEXT (or MMX or 3DNOW) 33 34 // some macros for pavgb instruction 35 // V_PAVGB(mmr1, mmr2, mmr work register, smask) mmr2 may = mmrw if you can trash it 36 37 #define V_PAVGB_MMX(mmr1, mmr2, mmrw, smask) \ 38 "movq "mmr2", "mmrw"\n\t" \ 39 "pand "smask", "mmrw"\n\t" \ 40 "psrlw $1, "mmrw"\n\t" \ 41 "pand "smask", "mmr1"\n\t" \ 42 "psrlw $1, "mmr1"\n\t" \ 43 "paddusb "mmrw", "mmr1"\n\t" 44 #define V_PAVGB_MMXEXT(mmr1, mmr2, mmrw, smask) "pavgb "mmr2", "mmr1"\n\t" 45 #define V_PAVGB_3DNOW(mmr1, mmr2, mmrw, smask) "pavgusb "mmr2", "mmr1"\n\t" 46 #define V_PAVGB(mmr1, mmr2, mmrw, smask) V_PAVGB2(mmr1, mmr2, mmrw, smask, SIMD_TYPE) 47 #define V_PAVGB2(mmr1, mmr2, mmrw, smask, simd_type) V_PAVGB3(mmr1, mmr2, mmrw, smask, simd_type) 48 #define V_PAVGB3(mmr1, mmr2, mmrw, smask, simd_type) V_PAVGB_##simd_type(mmr1, mmr2, mmrw, smask) 49 50 // some macros for pmaxub instruction 51 #define V_PMAXUB_MMX(mmr1, mmr2) \ 52 "psubusb "mmr2", "mmr1"\n\t" \ 53 "paddusb "mmr2", "mmr1"\n\t" 54 #define V_PMAXUB_MMXEXT(mmr1, mmr2) "pmaxub "mmr2", "mmr1"\n\t" 55 #define V_PMAXUB_3DNOW(mmr1, mmr2) V_PMAXUB_MMX(mmr1, mmr2) // use MMX version 56 #define V_PMAXUB(mmr1, mmr2) V_PMAXUB2(mmr1, mmr2, SIMD_TYPE) 57 #define V_PMAXUB2(mmr1, mmr2, simd_type) V_PMAXUB3(mmr1, mmr2, simd_type) 58 #define V_PMAXUB3(mmr1, mmr2, simd_type) V_PMAXUB_##simd_type(mmr1, mmr2) 59 60 // some macros for pminub instruction 61 // V_PMINUB(mmr1, mmr2, mmr work register) mmr2 may NOT = mmrw 62 #define V_PMINUB_MMX(mmr1, mmr2, mmrw) \ 63 "pcmpeqb "mmrw", "mmrw"\n\t" \ 64 "psubusb "mmr2", "mmrw"\n\t" \ 65 "paddusb "mmrw", "mmr1"\n\t" \ 66 "psubusb "mmrw", "mmr1"\n\t" 67 #define V_PMINUB_MMXEXT(mmr1, mmr2, mmrw) "pminub "mmr2", "mmr1"\n\t" 68 #define V_PMINUB_3DNOW(mmr1, mmr2, mmrw) V_PMINUB_MMX(mmr1, mmr2, mmrw) // use MMX version 69 #define V_PMINUB(mmr1, mmr2, mmrw) V_PMINUB2(mmr1, mmr2, mmrw, SIMD_TYPE) 70 #define V_PMINUB2(mmr1, mmr2, mmrw, simd_type) V_PMINUB3(mmr1, mmr2, mmrw, simd_type) 71 #define V_PMINUB3(mmr1, mmr2, mmrw, simd_type) V_PMINUB_##simd_type(mmr1, mmr2, mmrw) 72 73 // some macros for movntq instruction 74 // V_MOVNTQ(mmr1, mmr2) 75 #define V_MOVNTQ_MMX(mmr1, mmr2) "movq "mmr2", "mmr1"\n\t" 76 #define V_MOVNTQ_3DNOW(mmr1, mmr2) "movq "mmr2", "mmr1"\n\t" 77 #define V_MOVNTQ_MMXEXT(mmr1, mmr2) "movntq "mmr2", "mmr1"\n\t" 78 #define V_MOVNTQ(mmr1, mmr2) V_MOVNTQ2(mmr1, mmr2, SIMD_TYPE) 79 #define V_MOVNTQ2(mmr1, mmr2, simd_type) V_MOVNTQ3(mmr1, mmr2, simd_type) 80 #define V_MOVNTQ3(mmr1, mmr2, simd_type) V_MOVNTQ_##simd_type(mmr1, mmr2) 81 82 // end of macros 83 84