2 * Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu>
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/asm.h"
25 #include "libavutil/x86/cpu.h"
26 #include "libavcodec/huffyuvdsp.h"
28 void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, intptr_t w);
29 void ff_add_bytes_sse2(uint8_t *dst, uint8_t *src, intptr_t w);
31 void ff_add_hfyu_median_pred_mmxext(uint8_t *dst, const uint8_t *top,
32 const uint8_t *diff, intptr_t w,
33 int *left, int *left_top);
34 void ff_add_hfyu_median_pred_sse2(uint8_t *dst, const uint8_t *top,
35 const uint8_t *diff, intptr_t w,
36 int *left, int *left_top);
38 int ff_add_hfyu_left_pred_ssse3(uint8_t *dst, const uint8_t *src,
39 intptr_t w, int left);
40 int ff_add_hfyu_left_pred_sse4(uint8_t *dst, const uint8_t *src,
41 intptr_t w, int left);
43 void ff_add_hfyu_left_pred_bgr32_mmx(uint8_t *dst, const uint8_t *src,
44 intptr_t w, uint8_t *left);
45 void ff_add_hfyu_left_pred_bgr32_sse2(uint8_t *dst, const uint8_t *src,
46 intptr_t w, uint8_t *left);
48 #if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32
49 static void add_hfyu_median_pred_cmov(uint8_t *dst, const uint8_t *top,
50 const uint8_t *diff, intptr_t w,
51 int *left, int *left_top)
56 int tl = *left_top & 0xff;
61 "movzbl (%3, %4), %2 \n"
74 "add (%6, %4), %b0 \n"
75 "mov %b0, (%5, %4) \n"
78 : "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2)
79 : "r"(dst + w), "r"(diff + w), "rm"(top + w)
86 av_cold void ff_huffyuvdsp_init_x86(HuffYUVDSPContext *c)
88 int cpu_flags = av_get_cpu_flags();
90 #if HAVE_INLINE_ASM && HAVE_7REGS && ARCH_X86_32
91 if (cpu_flags & AV_CPU_FLAG_CMOV)
92 c->add_hfyu_median_pred = add_hfyu_median_pred_cmov;
95 if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags)) {
96 c->add_bytes = ff_add_bytes_mmx;
97 c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_mmx;
100 if (ARCH_X86_32 && EXTERNAL_MMXEXT(cpu_flags)) {
101 /* slower than cmov version on AMD */
102 if (!(cpu_flags & AV_CPU_FLAG_3DNOW))
103 c->add_hfyu_median_pred = ff_add_hfyu_median_pred_mmxext;
106 if (EXTERNAL_SSE2(cpu_flags)) {
107 c->add_bytes = ff_add_bytes_sse2;
108 c->add_hfyu_median_pred = ff_add_hfyu_median_pred_sse2;
109 c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_sse2;
112 if (EXTERNAL_SSSE3(cpu_flags)) {
113 c->add_hfyu_left_pred = ff_add_hfyu_left_pred_ssse3;
114 if (cpu_flags & AV_CPU_FLAG_SSE4) // not really SSE4, just slow on Conroe
115 c->add_hfyu_left_pred = ff_add_hfyu_left_pred_sse4;