/* * SIMD-optimized halfpel functions are compiled twice for rnd/no_rnd * Copyright (c) 2000, 2001 Fabrice Bellard * Copyright (c) 2003-2004 Michael Niedermayer * * MMX optimization by Nick Kurshev * mostly rewritten by Michael Niedermayer * and improved by Zdenek Kabelac * * This file is part of Libav. * * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "inline_asm.h" // put_pixels STATIC void DEF(put, pixels8_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h) { MOVQ_ZERO(mm7); SET_RND(mm6); // =2 for rnd and =1 for no_rnd version __asm__ volatile( "movq (%1), %%mm0 \n\t" "movq 1(%1), %%mm4 \n\t" "movq %%mm0, %%mm1 \n\t" "movq %%mm4, %%mm5 \n\t" "punpcklbw %%mm7, %%mm0 \n\t" "punpcklbw %%mm7, %%mm4 \n\t" "punpckhbw %%mm7, %%mm1 \n\t" "punpckhbw %%mm7, %%mm5 \n\t" "paddusw %%mm0, %%mm4 \n\t" "paddusw %%mm1, %%mm5 \n\t" "xor %%"REG_a", %%"REG_a" \n\t" "add %3, %1 \n\t" ".p2align 3 \n\t" "1: \n\t" "movq (%1, %%"REG_a"), %%mm0 \n\t" "movq 1(%1, %%"REG_a"), %%mm2 \n\t" "movq %%mm0, %%mm1 \n\t" "movq %%mm2, %%mm3 \n\t" "punpcklbw %%mm7, %%mm0 \n\t" "punpcklbw %%mm7, %%mm2 \n\t" "punpckhbw %%mm7, %%mm1 \n\t" "punpckhbw %%mm7, %%mm3 \n\t" "paddusw %%mm2, %%mm0 \n\t" "paddusw %%mm3, %%mm1 \n\t" "paddusw %%mm6, %%mm4 \n\t" "paddusw %%mm6, %%mm5 \n\t" "paddusw %%mm0, %%mm4 \n\t" "paddusw %%mm1, %%mm5 \n\t" "psrlw $2, %%mm4 \n\t" "psrlw $2, %%mm5 \n\t" "packuswb %%mm5, %%mm4 \n\t" "movq %%mm4, (%2, %%"REG_a") \n\t" "add %3, %%"REG_a" \n\t" "movq (%1, %%"REG_a"), %%mm2 \n\t" // 0 <-> 2 1 <-> 3 "movq 1(%1, %%"REG_a"), %%mm4 \n\t" "movq %%mm2, %%mm3 \n\t" "movq %%mm4, %%mm5 \n\t" "punpcklbw %%mm7, %%mm2 \n\t" "punpcklbw %%mm7, %%mm4 \n\t" "punpckhbw %%mm7, %%mm3 \n\t" "punpckhbw %%mm7, %%mm5 \n\t" "paddusw %%mm2, %%mm4 \n\t" "paddusw %%mm3, %%mm5 \n\t" "paddusw %%mm6, %%mm0 \n\t" "paddusw %%mm6, %%mm1 \n\t" "paddusw %%mm4, %%mm0 \n\t" "paddusw %%mm5, %%mm1 \n\t" "psrlw $2, %%mm0 \n\t" "psrlw $2, %%mm1 \n\t" "packuswb %%mm1, %%mm0 \n\t" "movq %%mm0, (%2, %%"REG_a") \n\t" "add %3, %%"REG_a" \n\t" "subl $2, %0 \n\t" "jnz 1b \n\t" :"+g"(h), "+S"(pixels) :"D"(block), "r"((x86_reg)line_size) :REG_a, "memory"); } // avg_pixels // this routine is 'slightly' suboptimal but mostly unused STATIC void DEF(avg, pixels8_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h) { MOVQ_ZERO(mm7); SET_RND(mm6); // =2 for rnd and =1 for no_rnd version __asm__ volatile( "movq (%1), %%mm0 \n\t" "movq 1(%1), %%mm4 \n\t" "movq %%mm0, %%mm1 \n\t" "movq %%mm4, %%mm5 \n\t" "punpcklbw %%mm7, %%mm0 \n\t" "punpcklbw %%mm7, %%mm4 \n\t" "punpckhbw %%mm7, %%mm1 \n\t" "punpckhbw %%mm7, %%mm5 \n\t" "paddusw %%mm0, %%mm4 \n\t" "paddusw %%mm1, %%mm5 \n\t" "xor %%"REG_a", %%"REG_a" \n\t" "add %3, %1 \n\t" ".p2align 3 \n\t" "1: \n\t" "movq (%1, %%"REG_a"), %%mm0 \n\t" "movq 1(%1, %%"REG_a"), %%mm2 \n\t" "movq %%mm0, %%mm1 \n\t" "movq %%mm2, %%mm3 \n\t" "punpcklbw %%mm7, %%mm0 \n\t" "punpcklbw %%mm7, %%mm2 \n\t" "punpckhbw %%mm7, %%mm1 \n\t" "punpckhbw %%mm7, %%mm3 \n\t" "paddusw %%mm2, %%mm0 \n\t" "paddusw %%mm3, %%mm1 \n\t" "paddusw %%mm6, %%mm4 \n\t" "paddusw %%mm6, %%mm5 \n\t" "paddusw %%mm0, %%mm4 \n\t" "paddusw %%mm1, %%mm5 \n\t" "psrlw $2, %%mm4 \n\t" "psrlw $2, %%mm5 \n\t" "movq (%2, %%"REG_a"), %%mm3 \n\t" "packuswb %%mm5, %%mm4 \n\t" "pcmpeqd %%mm2, %%mm2 \n\t" "paddb %%mm2, %%mm2 \n\t" PAVGB_MMX(%%mm3, %%mm4, %%mm5, %%mm2) "movq %%mm5, (%2, %%"REG_a") \n\t" "add %3, %%"REG_a" \n\t" "movq (%1, %%"REG_a"), %%mm2 \n\t" // 0 <-> 2 1 <-> 3 "movq 1(%1, %%"REG_a"), %%mm4 \n\t" "movq %%mm2, %%mm3 \n\t" "movq %%mm4, %%mm5 \n\t" "punpcklbw %%mm7, %%mm2 \n\t" "punpcklbw %%mm7, %%mm4 \n\t" "punpckhbw %%mm7, %%mm3 \n\t" "punpckhbw %%mm7, %%mm5 \n\t" "paddusw %%mm2, %%mm4 \n\t" "paddusw %%mm3, %%mm5 \n\t" "paddusw %%mm6, %%mm0 \n\t" "paddusw %%mm6, %%mm1 \n\t" "paddusw %%mm4, %%mm0 \n\t" "paddusw %%mm5, %%mm1 \n\t" "psrlw $2, %%mm0 \n\t" "psrlw $2, %%mm1 \n\t" "movq (%2, %%"REG_a"), %%mm3 \n\t" "packuswb %%mm1, %%mm0 \n\t" "pcmpeqd %%mm2, %%mm2 \n\t" "paddb %%mm2, %%mm2 \n\t" PAVGB_MMX(%%mm3, %%mm0, %%mm1, %%mm2) "movq %%mm1, (%2, %%"REG_a") \n\t" "add %3, %%"REG_a" \n\t" "subl $2, %0 \n\t" "jnz 1b \n\t" :"+g"(h), "+S"(pixels) :"D"(block), "r"((x86_reg)line_size) :REG_a, "memory"); }