[deb_ffmpeg.git] / ffmpeg / libavcodec / x86 / videodsp_init.c

/*
 * Copyright (C) 2002-2012 Michael Niedermayer
 * Copyright (C) 2012 Ronald S. Bultje
 *
 * 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/avassert.h"
#include "libavutil/common.h"
#include "libavutil/cpu.h"
#include "libavutil/mem.h"
#include "libavutil/x86/asm.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/videodsp.h"

#if HAVE_YASM
typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride,
                                const uint8_t *src, x86_reg src_stride,
                                x86_reg start_y, x86_reg end_y, x86_reg bh);
typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride,
                                const uint8_t *src, x86_reg src_stride,
                                x86_reg start_y, x86_reg end_y, x86_reg bh,
                                x86_reg w);

extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix16_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix17_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix18_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix19_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix20_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix21_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix22_mmx;
#if ARCH_X86_32
static emu_edge_vfix_func * const vfixtbl_mmx[22] = {
    &ff_emu_edge_vfix1_mmx,  &ff_emu_edge_vfix2_mmx,  &ff_emu_edge_vfix3_mmx,
    &ff_emu_edge_vfix4_mmx,  &ff_emu_edge_vfix5_mmx,  &ff_emu_edge_vfix6_mmx,
    &ff_emu_edge_vfix7_mmx,  &ff_emu_edge_vfix8_mmx,  &ff_emu_edge_vfix9_mmx,
    &ff_emu_edge_vfix10_mmx, &ff_emu_edge_vfix11_mmx, &ff_emu_edge_vfix12_mmx,
    &ff_emu_edge_vfix13_mmx, &ff_emu_edge_vfix14_mmx, &ff_emu_edge_vfix15_mmx,
    &ff_emu_edge_vfix16_mmx, &ff_emu_edge_vfix17_mmx, &ff_emu_edge_vfix18_mmx,
    &ff_emu_edge_vfix19_mmx, &ff_emu_edge_vfix20_mmx, &ff_emu_edge_vfix21_mmx,
    &ff_emu_edge_vfix22_mmx
};
#endif
extern emu_edge_vvar_func ff_emu_edge_vvar_mmx;
extern emu_edge_vfix_func ff_emu_edge_vfix16_sse;
extern emu_edge_vfix_func ff_emu_edge_vfix17_sse;
extern emu_edge_vfix_func ff_emu_edge_vfix18_sse;
extern emu_edge_vfix_func ff_emu_edge_vfix19_sse;
extern emu_edge_vfix_func ff_emu_edge_vfix20_sse;
extern emu_edge_vfix_func ff_emu_edge_vfix21_sse;
extern emu_edge_vfix_func ff_emu_edge_vfix22_sse;
static emu_edge_vfix_func * const vfixtbl_sse[22] = {
    ff_emu_edge_vfix1_mmx,  ff_emu_edge_vfix2_mmx,  ff_emu_edge_vfix3_mmx,
    ff_emu_edge_vfix4_mmx,  ff_emu_edge_vfix5_mmx,  ff_emu_edge_vfix6_mmx,
    ff_emu_edge_vfix7_mmx,  ff_emu_edge_vfix8_mmx,  ff_emu_edge_vfix9_mmx,
    ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx,
    ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx,
    ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse,
    ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse,
    ff_emu_edge_vfix22_sse
};
extern emu_edge_vvar_func ff_emu_edge_vvar_sse;

typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride,
                                x86_reg start_x, x86_reg bh);
typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride,
                                x86_reg start_x, x86_reg n_words, x86_reg bh);

extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix16_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix18_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix20_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix22_mmx;
#if ARCH_X86_32
static emu_edge_hfix_func * const hfixtbl_mmx[11] = {
    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
    ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
    ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_mmx, ff_emu_edge_hfix18_mmx,
    ff_emu_edge_hfix20_mmx, ff_emu_edge_hfix22_mmx
};
#endif
extern emu_edge_hvar_func ff_emu_edge_hvar_mmx;
extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2;
extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2;
extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2;
extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2;
static emu_edge_hfix_func * const hfixtbl_sse2[11] = {
    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
    ff_emu_edge_hfix8_mmx,  ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
    ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2,
    ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2
};
extern emu_edge_hvar_func ff_emu_edge_hvar_sse2;
#if HAVE_AVX2_EXTERNAL
extern emu_edge_hfix_func ff_emu_edge_hfix8_avx2;
extern emu_edge_hfix_func ff_emu_edge_hfix10_avx2;
extern emu_edge_hfix_func ff_emu_edge_hfix12_avx2;
extern emu_edge_hfix_func ff_emu_edge_hfix14_avx2;
extern emu_edge_hfix_func ff_emu_edge_hfix16_avx2;
extern emu_edge_hfix_func ff_emu_edge_hfix18_avx2;
extern emu_edge_hfix_func ff_emu_edge_hfix20_avx2;
extern emu_edge_hfix_func ff_emu_edge_hfix22_avx2;
static emu_edge_hfix_func * const hfixtbl_avx2[11] = {
    ff_emu_edge_hfix2_mmx,  ff_emu_edge_hfix4_mmx,  ff_emu_edge_hfix6_mmx,
    ff_emu_edge_hfix8_avx2,  ff_emu_edge_hfix10_avx2, ff_emu_edge_hfix12_avx2,
    ff_emu_edge_hfix14_avx2, ff_emu_edge_hfix16_avx2, ff_emu_edge_hfix18_avx2,
    ff_emu_edge_hfix20_avx2, ff_emu_edge_hfix22_avx2
};
extern emu_edge_hvar_func ff_emu_edge_hvar_avx2;
#endif

static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src,
                                              ptrdiff_t dst_stride,
                                              ptrdiff_t src_stride,
                                              x86_reg block_w, x86_reg block_h,
                                              x86_reg src_x, x86_reg src_y,
                                              x86_reg w, x86_reg h,
                                              emu_edge_vfix_func * const *vfix_tbl,
                                              emu_edge_vvar_func *v_extend_var,
                                              emu_edge_hfix_func * const *hfix_tbl,
                                              emu_edge_hvar_func *h_extend_var)
{
    x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p;

    if (!w || !h)
        return;

    if (src_y >= h) {
        src -= src_y*src_stride;
        src_y_add = h - 1;
        src_y     = h - 1;
    } else if (src_y <= -block_h) {
        src -= src_y*src_stride;
        src_y_add = 1 - block_h;
        src_y     = 1 - block_h;
    }
    if (src_x >= w) {
        src   += w - 1 - src_x;
        src_x  = w - 1;
    } else if (src_x <= -block_w) {
        src   += 1 - block_w - src_x;
        src_x  = 1 - block_w;
    }

    start_y = FFMAX(0, -src_y);
    start_x = FFMAX(0, -src_x);
    end_y   = FFMIN(block_h, h-src_y);
    end_x   = FFMIN(block_w, w-src_x);
    av_assert2(start_x < end_x && block_w > 0);
    av_assert2(start_y < end_y && block_h > 0);

    // fill in the to-be-copied part plus all above/below
    src += (src_y_add + start_y) * src_stride + start_x;
    w = end_x - start_x;
    if (w <= 22) {
        vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride,
                        start_y, end_y, block_h);
    } else {
        v_extend_var(dst + start_x, dst_stride, src, src_stride,
                     start_y, end_y, block_h, w);
    }

    // fill left
    if (start_x) {
        if (start_x <= 22) {
            hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h);
        } else {
            h_extend_var(dst, dst_stride,
                         start_x, (start_x + 1) >> 1, block_h);
        }
    }

    // fill right
    p = block_w - end_x;
    if (p) {
        if (p <= 22) {
            hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride,
                                   -!(p & 1), block_h);
        } else {
            h_extend_var(dst + end_x - (p & 1), dst_stride,
                         -!(p & 1), (p + 1) >> 1, block_h);
        }
    }
}

#if ARCH_X86_32
static av_noinline void emulated_edge_mc_mmx(uint8_t *buf, const uint8_t *src,
                                             ptrdiff_t buf_stride,
                                             ptrdiff_t src_stride,
                                             int block_w, int block_h,
                                             int src_x, int src_y, int w, int h)
{
    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
                     src_x, src_y, w, h, vfixtbl_mmx, &ff_emu_edge_vvar_mmx,
                     hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
}

static av_noinline void emulated_edge_mc_sse(uint8_t *buf, const uint8_t *src,
                                             ptrdiff_t buf_stride,
                                             ptrdiff_t src_stride,
                                             int block_w, int block_h,
                                             int src_x, int src_y, int w, int h)
{
    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
                     src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
                     hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
}
#endif

static av_noinline void emulated_edge_mc_sse2(uint8_t *buf, const uint8_t *src,
                                              ptrdiff_t buf_stride,
                                              ptrdiff_t src_stride,
                                              int block_w, int block_h,
                                              int src_x, int src_y, int w,
                                              int h)
{
    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
                     src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
                     hfixtbl_sse2, &ff_emu_edge_hvar_sse2);
}

#if HAVE_AVX2_EXTERNAL
static av_noinline void emulated_edge_mc_avx2(uint8_t *buf, const uint8_t *src,
                                              ptrdiff_t buf_stride,
                                              ptrdiff_t src_stride,
                                              int block_w, int block_h,
                                              int src_x, int src_y, int w,
                                              int h)
{
    emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
                     src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
                     hfixtbl_avx2, &ff_emu_edge_hvar_avx2);
}
#endif /* HAVE_AVX2_EXTERNAL */
#endif /* HAVE_YASM */

void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h);
void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h);

av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
{
#if HAVE_YASM
    int cpu_flags = av_get_cpu_flags();

#if ARCH_X86_32
    if (EXTERNAL_MMX(cpu_flags) && bpc <= 8) {
        ctx->emulated_edge_mc = emulated_edge_mc_mmx;
    }
    if (EXTERNAL_AMD3DNOW(cpu_flags)) {
        ctx->prefetch = ff_prefetch_3dnow;
    }
#endif /* ARCH_X86_32 */
    if (EXTERNAL_MMXEXT(cpu_flags)) {
        ctx->prefetch = ff_prefetch_mmxext;
    }
#if ARCH_X86_32
    if (EXTERNAL_SSE(cpu_flags) && bpc <= 8) {
        ctx->emulated_edge_mc = emulated_edge_mc_sse;
    }
#endif /* ARCH_X86_32 */
    if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) {
        ctx->emulated_edge_mc = emulated_edge_mc_sse2;
    }
#if HAVE_AVX2_EXTERNAL
    if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) {
        ctx->emulated_edge_mc = emulated_edge_mc_avx2;
    }
#endif
#endif /* HAVE_YASM */
}
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* Copyright (C) 2002-2012 Michael Niedermayer
	3	* Copyright (C) 2012 Ronald S. Bultje
	4	*
	5	* This file is part of FFmpeg.
	6	*
	7	* FFmpeg is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU Lesser General Public
	9	* License as published by the Free Software Foundation; either
	10	* version 2.1 of the License, or (at your option) any later version.
	11	*
	12	* FFmpeg is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
	18	* License along with FFmpeg; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
	22	#include "config.h"
	23	#include "libavutil/attributes.h"
	24	#include "libavutil/avassert.h"
	25	#include "libavutil/common.h"
	26	#include "libavutil/cpu.h"
	27	#include "libavutil/mem.h"
	28	#include "libavutil/x86/asm.h"
	29	#include "libavutil/x86/cpu.h"
	30	#include "libavcodec/videodsp.h"
	31
	32	#if HAVE_YASM
	33	typedef void emu_edge_vfix_func(uint8_t *dst, x86_reg dst_stride,
	34	const uint8_t *src, x86_reg src_stride,
	35	x86_reg start_y, x86_reg end_y, x86_reg bh);
	36	typedef void emu_edge_vvar_func(uint8_t *dst, x86_reg dst_stride,
	37	const uint8_t *src, x86_reg src_stride,
	38	x86_reg start_y, x86_reg end_y, x86_reg bh,
	39	x86_reg w);
	40
	41	extern emu_edge_vfix_func ff_emu_edge_vfix1_mmx;
	42	extern emu_edge_vfix_func ff_emu_edge_vfix2_mmx;
	43	extern emu_edge_vfix_func ff_emu_edge_vfix3_mmx;
	44	extern emu_edge_vfix_func ff_emu_edge_vfix4_mmx;
	45	extern emu_edge_vfix_func ff_emu_edge_vfix5_mmx;
	46	extern emu_edge_vfix_func ff_emu_edge_vfix6_mmx;
	47	extern emu_edge_vfix_func ff_emu_edge_vfix7_mmx;
	48	extern emu_edge_vfix_func ff_emu_edge_vfix8_mmx;
	49	extern emu_edge_vfix_func ff_emu_edge_vfix9_mmx;
	50	extern emu_edge_vfix_func ff_emu_edge_vfix10_mmx;
	51	extern emu_edge_vfix_func ff_emu_edge_vfix11_mmx;
	52	extern emu_edge_vfix_func ff_emu_edge_vfix12_mmx;
	53	extern emu_edge_vfix_func ff_emu_edge_vfix13_mmx;
	54	extern emu_edge_vfix_func ff_emu_edge_vfix14_mmx;
	55	extern emu_edge_vfix_func ff_emu_edge_vfix15_mmx;
	56	extern emu_edge_vfix_func ff_emu_edge_vfix16_mmx;
	57	extern emu_edge_vfix_func ff_emu_edge_vfix17_mmx;
	58	extern emu_edge_vfix_func ff_emu_edge_vfix18_mmx;
	59	extern emu_edge_vfix_func ff_emu_edge_vfix19_mmx;
	60	extern emu_edge_vfix_func ff_emu_edge_vfix20_mmx;
	61	extern emu_edge_vfix_func ff_emu_edge_vfix21_mmx;
	62	extern emu_edge_vfix_func ff_emu_edge_vfix22_mmx;
	63	#if ARCH_X86_32
	64	static emu_edge_vfix_func * const vfixtbl_mmx[22] = {
65	&ff_emu_edge_vfix1_mmx, &ff_emu_edge_vfix2_mmx, &ff_emu_edge_vfix3_mmx,
66	&ff_emu_edge_vfix4_mmx, &ff_emu_edge_vfix5_mmx, &ff_emu_edge_vfix6_mmx,
67	&ff_emu_edge_vfix7_mmx, &ff_emu_edge_vfix8_mmx, &ff_emu_edge_vfix9_mmx,
68	&ff_emu_edge_vfix10_mmx, &ff_emu_edge_vfix11_mmx, &ff_emu_edge_vfix12_mmx,
69	&ff_emu_edge_vfix13_mmx, &ff_emu_edge_vfix14_mmx, &ff_emu_edge_vfix15_mmx,
70	&ff_emu_edge_vfix16_mmx, &ff_emu_edge_vfix17_mmx, &ff_emu_edge_vfix18_mmx,
71	&ff_emu_edge_vfix19_mmx, &ff_emu_edge_vfix20_mmx, &ff_emu_edge_vfix21_mmx,
72	&ff_emu_edge_vfix22_mmx
73	};
74	#endif
75	extern emu_edge_vvar_func ff_emu_edge_vvar_mmx;
76	extern emu_edge_vfix_func ff_emu_edge_vfix16_sse;
77	extern emu_edge_vfix_func ff_emu_edge_vfix17_sse;
78	extern emu_edge_vfix_func ff_emu_edge_vfix18_sse;
79	extern emu_edge_vfix_func ff_emu_edge_vfix19_sse;
80	extern emu_edge_vfix_func ff_emu_edge_vfix20_sse;
81	extern emu_edge_vfix_func ff_emu_edge_vfix21_sse;
82	extern emu_edge_vfix_func ff_emu_edge_vfix22_sse;
83	static emu_edge_vfix_func * const vfixtbl_sse[22] = {
84	ff_emu_edge_vfix1_mmx, ff_emu_edge_vfix2_mmx, ff_emu_edge_vfix3_mmx,
85	ff_emu_edge_vfix4_mmx, ff_emu_edge_vfix5_mmx, ff_emu_edge_vfix6_mmx,
86	ff_emu_edge_vfix7_mmx, ff_emu_edge_vfix8_mmx, ff_emu_edge_vfix9_mmx,
87	ff_emu_edge_vfix10_mmx, ff_emu_edge_vfix11_mmx, ff_emu_edge_vfix12_mmx,
88	ff_emu_edge_vfix13_mmx, ff_emu_edge_vfix14_mmx, ff_emu_edge_vfix15_mmx,
89	ff_emu_edge_vfix16_sse, ff_emu_edge_vfix17_sse, ff_emu_edge_vfix18_sse,
90	ff_emu_edge_vfix19_sse, ff_emu_edge_vfix20_sse, ff_emu_edge_vfix21_sse,
91	ff_emu_edge_vfix22_sse
92	};
93	extern emu_edge_vvar_func ff_emu_edge_vvar_sse;
94
95	typedef void emu_edge_hfix_func(uint8_t *dst, x86_reg dst_stride,
96	x86_reg start_x, x86_reg bh);
97	typedef void emu_edge_hvar_func(uint8_t *dst, x86_reg dst_stride,
98	x86_reg start_x, x86_reg n_words, x86_reg bh);
99
100	extern emu_edge_hfix_func ff_emu_edge_hfix2_mmx;
101	extern emu_edge_hfix_func ff_emu_edge_hfix4_mmx;
102	extern emu_edge_hfix_func ff_emu_edge_hfix6_mmx;
103	extern emu_edge_hfix_func ff_emu_edge_hfix8_mmx;
104	extern emu_edge_hfix_func ff_emu_edge_hfix10_mmx;
105	extern emu_edge_hfix_func ff_emu_edge_hfix12_mmx;
106	extern emu_edge_hfix_func ff_emu_edge_hfix14_mmx;
107	extern emu_edge_hfix_func ff_emu_edge_hfix16_mmx;
108	extern emu_edge_hfix_func ff_emu_edge_hfix18_mmx;
109	extern emu_edge_hfix_func ff_emu_edge_hfix20_mmx;
110	extern emu_edge_hfix_func ff_emu_edge_hfix22_mmx;
111	#if ARCH_X86_32
112	static emu_edge_hfix_func * const hfixtbl_mmx[11] = {
113	ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx,
114	ff_emu_edge_hfix8_mmx, ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
115	ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_mmx, ff_emu_edge_hfix18_mmx,
116	ff_emu_edge_hfix20_mmx, ff_emu_edge_hfix22_mmx
117	};
118	#endif
119	extern emu_edge_hvar_func ff_emu_edge_hvar_mmx;
120	extern emu_edge_hfix_func ff_emu_edge_hfix16_sse2;
121	extern emu_edge_hfix_func ff_emu_edge_hfix18_sse2;
122	extern emu_edge_hfix_func ff_emu_edge_hfix20_sse2;
123	extern emu_edge_hfix_func ff_emu_edge_hfix22_sse2;
124	static emu_edge_hfix_func * const hfixtbl_sse2[11] = {
125	ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx,
126	ff_emu_edge_hfix8_mmx, ff_emu_edge_hfix10_mmx, ff_emu_edge_hfix12_mmx,
127	ff_emu_edge_hfix14_mmx, ff_emu_edge_hfix16_sse2, ff_emu_edge_hfix18_sse2,
128	ff_emu_edge_hfix20_sse2, ff_emu_edge_hfix22_sse2
129	};
130	extern emu_edge_hvar_func ff_emu_edge_hvar_sse2;
f6fa7814 DM	131	#if HAVE_AVX2_EXTERNAL
	132	extern emu_edge_hfix_func ff_emu_edge_hfix8_avx2;
	133	extern emu_edge_hfix_func ff_emu_edge_hfix10_avx2;
	134	extern emu_edge_hfix_func ff_emu_edge_hfix12_avx2;
	135	extern emu_edge_hfix_func ff_emu_edge_hfix14_avx2;
	136	extern emu_edge_hfix_func ff_emu_edge_hfix16_avx2;
	137	extern emu_edge_hfix_func ff_emu_edge_hfix18_avx2;
	138	extern emu_edge_hfix_func ff_emu_edge_hfix20_avx2;
	139	extern emu_edge_hfix_func ff_emu_edge_hfix22_avx2;
	140	static emu_edge_hfix_func * const hfixtbl_avx2[11] = {
	141	ff_emu_edge_hfix2_mmx, ff_emu_edge_hfix4_mmx, ff_emu_edge_hfix6_mmx,
	142	ff_emu_edge_hfix8_avx2, ff_emu_edge_hfix10_avx2, ff_emu_edge_hfix12_avx2,
	143	ff_emu_edge_hfix14_avx2, ff_emu_edge_hfix16_avx2, ff_emu_edge_hfix18_avx2,
	144	ff_emu_edge_hfix20_avx2, ff_emu_edge_hfix22_avx2
	145	};
	146	extern emu_edge_hvar_func ff_emu_edge_hvar_avx2;
	147	#endif
2ba45a60 DM	148
	149	static av_always_inline void emulated_edge_mc(uint8_t dst, const uint8_t src,
	150	ptrdiff_t dst_stride,
	151	ptrdiff_t src_stride,
	152	x86_reg block_w, x86_reg block_h,
	153	x86_reg src_x, x86_reg src_y,
	154	x86_reg w, x86_reg h,
f6fa7814	155	emu_edge_vfix_func * const *vfix_tbl,
2ba45a60	156	emu_edge_vvar_func *v_extend_var,
f6fa7814	157	emu_edge_hfix_func * const *hfix_tbl,
2ba45a60 DM	158	emu_edge_hvar_func *h_extend_var)
	159	{
	160	x86_reg start_y, start_x, end_y, end_x, src_y_add = 0, p;
	161
	162	if (!w \|\| !h)
	163	return;
	164
	165	if (src_y >= h) {
	166	src -= src_y*src_stride;
	167	src_y_add = h - 1;
	168	src_y = h - 1;
	169	} else if (src_y <= -block_h) {
	170	src -= src_y*src_stride;
	171	src_y_add = 1 - block_h;
	172	src_y = 1 - block_h;
	173	}
	174	if (src_x >= w) {
	175	src += w - 1 - src_x;
	176	src_x = w - 1;
	177	} else if (src_x <= -block_w) {
	178	src += 1 - block_w - src_x;
	179	src_x = 1 - block_w;
	180	}
	181
	182	start_y = FFMAX(0, -src_y);
	183	start_x = FFMAX(0, -src_x);
	184	end_y = FFMIN(block_h, h-src_y);
	185	end_x = FFMIN(block_w, w-src_x);
	186	av_assert2(start_x < end_x && block_w > 0);
	187	av_assert2(start_y < end_y && block_h > 0);
	188
	189	// fill in the to-be-copied part plus all above/below
	190	src += (src_y_add + start_y) * src_stride + start_x;
	191	w = end_x - start_x;
	192	if (w <= 22) {
	193	vfix_tbl[w - 1](dst + start_x, dst_stride, src, src_stride,
	194	start_y, end_y, block_h);
	195	} else {
	196	v_extend_var(dst + start_x, dst_stride, src, src_stride,
	197	start_y, end_y, block_h, w);
	198	}
	199
	200	// fill left
	201	if (start_x) {
	202	if (start_x <= 22) {
	203	hfix_tbl[(start_x - 1) >> 1](dst, dst_stride, start_x, block_h);
	204	} else {
	205	h_extend_var(dst, dst_stride,
	206	start_x, (start_x + 1) >> 1, block_h);
	207	}
	208	}
	209
	210	// fill right
	211	p = block_w - end_x;
	212	if (p) {
	213	if (p <= 22) {
	214	hfix_tbl[(p - 1) >> 1](dst + end_x - (p & 1), dst_stride,
	215	-!(p & 1), block_h);
	216	} else {
	217	h_extend_var(dst + end_x - (p & 1), dst_stride,
	218	-!(p & 1), (p + 1) >> 1, block_h);
	219	}
	220	}
	221	}
222
223	#if ARCH_X86_32
224	static av_noinline void emulated_edge_mc_mmx(uint8_t buf, const uint8_t src,
225	ptrdiff_t buf_stride,
226	ptrdiff_t src_stride,
227	int block_w, int block_h,
228	int src_x, int src_y, int w, int h)
229	{
230	emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
231	src_x, src_y, w, h, vfixtbl_mmx, &ff_emu_edge_vvar_mmx,
232	hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
233	}
234
235	static av_noinline void emulated_edge_mc_sse(uint8_t buf, const uint8_t src,
236	ptrdiff_t buf_stride,
237	ptrdiff_t src_stride,
238	int block_w, int block_h,
239	int src_x, int src_y, int w, int h)
240	{
241	emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
242	src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
243	hfixtbl_mmx, &ff_emu_edge_hvar_mmx);
244	}
245	#endif
246
247	static av_noinline void emulated_edge_mc_sse2(uint8_t buf, const uint8_t src,
248	ptrdiff_t buf_stride,
249	ptrdiff_t src_stride,
250	int block_w, int block_h,
251	int src_x, int src_y, int w,
252	int h)
253	{
254	emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
255	src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
256	hfixtbl_sse2, &ff_emu_edge_hvar_sse2);
257	}
f6fa7814 DM	258
	259	#if HAVE_AVX2_EXTERNAL
	260	static av_noinline void emulated_edge_mc_avx2(uint8_t buf, const uint8_t src,
	261	ptrdiff_t buf_stride,
	262	ptrdiff_t src_stride,
	263	int block_w, int block_h,
	264	int src_x, int src_y, int w,
	265	int h)
	266	{
	267	emulated_edge_mc(buf, src, buf_stride, src_stride, block_w, block_h,
	268	src_x, src_y, w, h, vfixtbl_sse, &ff_emu_edge_vvar_sse,
	269	hfixtbl_avx2, &ff_emu_edge_hvar_avx2);
	270	}
	271	#endif /* HAVE_AVX2_EXTERNAL */
2ba45a60 DM	272	#endif /* HAVE_YASM */
	273
	274	void ff_prefetch_mmxext(uint8_t *buf, ptrdiff_t stride, int h);
	275	void ff_prefetch_3dnow(uint8_t *buf, ptrdiff_t stride, int h);
	276
	277	av_cold void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
	278	{
	279	#if HAVE_YASM
	280	int cpu_flags = av_get_cpu_flags();
	281
	282	#if ARCH_X86_32
	283	if (EXTERNAL_MMX(cpu_flags) && bpc <= 8) {
	284	ctx->emulated_edge_mc = emulated_edge_mc_mmx;
	285	}
	286	if (EXTERNAL_AMD3DNOW(cpu_flags)) {
	287	ctx->prefetch = ff_prefetch_3dnow;
	288	}
	289	#endif /* ARCH_X86_32 */
	290	if (EXTERNAL_MMXEXT(cpu_flags)) {
	291	ctx->prefetch = ff_prefetch_mmxext;
	292	}
	293	#if ARCH_X86_32
	294	if (EXTERNAL_SSE(cpu_flags) && bpc <= 8) {
	295	ctx->emulated_edge_mc = emulated_edge_mc_sse;
	296	}
	297	#endif /* ARCH_X86_32 */
	298	if (EXTERNAL_SSE2(cpu_flags) && bpc <= 8) {
	299	ctx->emulated_edge_mc = emulated_edge_mc_sse2;
	300	}
f6fa7814 DM	301	#if HAVE_AVX2_EXTERNAL
	302	if (EXTERNAL_AVX2(cpu_flags) && bpc <= 8) {
	303	ctx->emulated_edge_mc = emulated_edge_mc_avx2;
	304	}
	305	#endif
2ba45a60 DM	306	#endif /* HAVE_YASM */
2ba45a60 DM	307	}