/* * Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu> * * This file is part of FFmpeg. * * FFmpeg 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. * * FFmpeg 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 FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include "libavutil/attributes.h" #include "libavutil/cpu.h" #include "libavutil/x86/asm.h" #include "libavutil/x86/cpu.h" #include "libavcodec/huffyuvdsp.h" void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, intptr_t w); void ff_add_bytes_sse2(uint8_t *dst, uint8_t *src, intptr_t w); void ff_add_hfyu_median_pred_mmxext(uint8_t *dst, const uint8_t *top, const uint8_t *diff, intptr_t w, int *left, int *left_top); void ff_add_hfyu_median_pred_sse2(uint8_t *dst, const uint8_t *top, const uint8_t *diff, intptr_t w, int *left, int *left_top); int ff_add_hfyu_left_pred_ssse3(uint8_t *dst, const uint8_t *src, intptr_t w, int left); int ff_add_hfyu_left_pred_sse4(uint8_t *dst, const uint8_t *src, intptr_t w, int left); void ff_add_hfyu_left_pred_bgr32_mmx(uint8_t *dst, const uint8_t *src, intptr_t w, uint8_t *left); void ff_add_hfyu_left_pred_bgr32_sse2(uint8_t *dst, const uint8_t *src, intptr_t w, uint8_t *left); #if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32 static void add_hfyu_median_pred_cmov(uint8_t *dst, const uint8_t *top, const uint8_t *diff, intptr_t w, int *left, int *left_top) { x86_reg w2 = -w; x86_reg x; int l = *left & 0xff; int tl = *left_top & 0xff; int t; __asm__ volatile ( "mov %7, %3 \n" "1: \n" "movzbl (%3, %4), %2 \n" "mov %2, %k3 \n" "sub %b1, %b3 \n" "add %b0, %b3 \n" "mov %2, %1 \n" "cmp %0, %2 \n" "cmovg %0, %2 \n" "cmovg %1, %0 \n" "cmp %k3, %0 \n" "cmovg %k3, %0 \n" "mov %7, %3 \n" "cmp %2, %0 \n" "cmovl %2, %0 \n" "add (%6, %4), %b0 \n" "mov %b0, (%5, %4) \n" "inc %4 \n" "jl 1b \n" : "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2) : "r"(dst + w), "r"(diff + w), "rm"(top + w) ); *left = l; *left_top = tl; } #endif av_cold void ff_huffyuvdsp_init_x86(HuffYUVDSPContext *c) { int cpu_flags = av_get_cpu_flags(); #if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32 if (cpu_flags & AV_CPU_FLAG_CMOV) c->add_hfyu_median_pred = add_hfyu_median_pred_cmov; #endif if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) { c->add_bytes = ff_add_bytes_mmx; c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_mmx; } if (ARCH_X86_32 && EXTERNAL_MMXEXT(cpu_flags)) { /* slower than cmov version on AMD */ if (!(cpu_flags & AV_CPU_FLAG_3DNOW)) c->add_hfyu_median_pred = ff_add_hfyu_median_pred_mmxext; } if (EXTERNAL_SSE2(cpu_flags)) { c->add_bytes = ff_add_bytes_sse2; c->add_hfyu_median_pred = ff_add_hfyu_median_pred_sse2; c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_sse2; } if (EXTERNAL_SSSE3(cpu_flags)) { c->add_hfyu_left_pred = ff_add_hfyu_left_pred_ssse3; if (cpu_flags & AV_CPU_FLAG_SSE4) // not really SSE4, just slow on Conroe c->add_hfyu_left_pred = ff_add_hfyu_left_pred_sse4; } }