i420_yuy2.h

VLC Player Source Code

/*****************************************************************************
 * i420_yuy2.h : YUV to YUV conversion module for vlc
 *****************************************************************************
 * Copyright (C) 2000, 2001 the VideoLAN team
 * $Id$
 *
 * Authors: Samuel Hocevar <[e-mail]>
 *          Damien Fouilleul <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#ifdef MODULE_NAME_IS_i420_yuy2_mmx

#if defined(CAN_COMPILE_MMX)

/* MMX assembly */
 
#define MMX_CALL(MMX_INSTRUCTIONS)          \
    do {                                    \
    __asm__ __volatile__(                   \
        ".p2align 3 \n\t                    \
movd       (%0), %%mm1  # Load 4 Cb           00 00 00 00 u3 u2 u1 u0     \n\
movd       (%1), %%mm2  # Load 4 Cr           00 00 00 00 v3 v2 v1 v0     \n\
movq       (%2), %%mm0  # Load 8 Y            y7 y6 y5 y4 y3 y2 y1 y0     \n\
movq       (%3), %%mm3  # Load 8 Y            Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
" \
        :                                   \
        : "r" (p_u), "r" (p_v),             \
          "r" (p_y1), "r" (p_y2) );         \
    __asm__ __volatile__(                   \
        ".p2align 3 \n\t"                   \
        MMX_INSTRUCTIONS                    \
        :                                   \
        : "r" (p_line1), "r" (p_line2) );   \
        p_line1 += 16; p_line2 += 16;       \
        p_y1 += 8; p_y2 += 8;               \
        p_u += 4; p_v += 4;                 \
    } while(0)

#define MMX_END __asm__ __volatile__ ( "emms" )

#define MMX_YUV420_YUYV "                                                 \n\
punpcklbw %%mm2, %%mm1  #                     v3 u3 v2 u2 v1 u1 v0 u0     \n\
movq      %%mm0, %%mm2  #                     y7 y6 y5 y4 y3 y2 y1 y0     \n\
punpcklbw %%mm1, %%mm2  #                     v1 y3 u1 y2 v0 y1 u0 y0     \n\
movq      %%mm2, (%0)   # Store low YUYV                                  \n\
punpckhbw %%mm1, %%mm0  #                     v3 y7 u3 y6 v2 y5 u2 y4     \n\
movq      %%mm0, 8(%0)  # Store high YUYV                                 \n\
movq      %%mm3, %%mm4  #                     Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
punpcklbw %%mm1, %%mm4  #                     v1 Y3 u1 Y2 v0 Y1 u0 Y0     \n\
movq      %%mm4, (%1)   # Store low YUYV                                  \n\
punpckhbw %%mm1, %%mm3  #                     v3 Y7 u3 Y6 v2 Y5 u2 Y4     \n\
movq      %%mm3, 8(%1)  # Store high YUYV                                 \n\
"

#define MMX_YUV420_YVYU "                                                 \n\
punpcklbw %%mm1, %%mm2  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
movq      %%mm0, %%mm1  #                     y7 y6 y5 y4 y3 y2 y1 y0     \n\
punpcklbw %%mm2, %%mm1  #                     u1 y3 v1 y2 u0 y1 v0 y0     \n\
movq      %%mm1, (%0)   # Store low YUYV                                  \n\
punpckhbw %%mm2, %%mm0  #                     u3 y7 v3 y6 u2 y5 v2 y4     \n\
movq      %%mm0, 8(%0)  # Store high YUYV                                 \n\
movq      %%mm3, %%mm4  #                     Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
punpcklbw %%mm2, %%mm4  #                     u1 Y3 v1 Y2 u0 Y1 v0 Y0     \n\
movq      %%mm4, (%1)   # Store low YUYV                                  \n\
punpckhbw %%mm2, %%mm3  #                     u3 Y7 v3 Y6 u2 Y5 v2 Y4     \n\
movq      %%mm3, 8(%1)  # Store high YUYV                                 \n\
"

#define MMX_YUV420_UYVY "                                                 \n\
punpcklbw %%mm2, %%mm1  #                     v3 u3 v2 u2 v1 u1 v0 u0     \n\
movq      %%mm1, %%mm2  #                     v3 u3 v2 u2 v1 u1 v0 u0     \n\
punpcklbw %%mm0, %%mm2  #                     y3 v1 y2 u1 y1 v0 y0 u0     \n\
movq      %%mm2, (%0)   # Store low UYVY                                  \n\
movq      %%mm1, %%mm2  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
punpckhbw %%mm0, %%mm2  #                     y3 v1 y2 u1 y1 v0 y0 u0     \n\
movq      %%mm2, 8(%0)  # Store high UYVY                                 \n\
movq      %%mm1, %%mm4  #                     u3 v3 u2 v2 u1 v1 u0 v0     \n\
punpcklbw %%mm3, %%mm4  #                     Y3 v1 Y2 u1 Y1 v0 Y0 u0     \n\
movq      %%mm4, (%1)   # Store low UYVY                                  \n\
punpckhbw %%mm3, %%mm1  #                     Y7 v3 Y6 u3 Y5 v2 Y4 u2     \n\
movq      %%mm1, 8(%1)  # Store high UYVY                                 \n\
"

/* FIXME: this code does not work ! Chroma seems to be wrong. */
#define MMX_YUV420_Y211 "                                                 \n\
movd       (%4), %%mm2  # Load 4 Cb           00 00 00 00 u3 u2 u1 u0     \n\
movd       (%5), %%mm3  # Load 4 Cr           00 00 00 00 v3 v2 v1 v0     \n\
pand    i_00ffw, %%mm0  # get Y even          00 Y6 00 Y4 00 Y2 00 Y0     \n\
packuswb  %%mm0, %%mm0  # pack Y              y6 y4 y2 y0 y6 y4 y2 y0     \n\
pand    i_00ffw, %%mm2  # get U even          00 u6 00 u4 00 u2 00 u0     \n\
packuswb  %%mm2, %%mm2  # pack U              00 00 u2 u0 00 00 u2 u0     \n\
pand    i_00ffw, %%mm3  # get V even          00 v6 00 v4 00 v2 00 v0     \n\
packuswb  %%mm3, %%mm3  # pack V              00 00 v2 v0 00 00 v2 v0     \n\
punpcklbw %%mm3, %%mm2  #                     00 00 00 00 v2 u2 v0 u0     \n\
psubsw    i_80w, %%mm2  # U,V -= 128                                      \n\
punpcklbw %%mm2, %%mm0  #                     v2 y6 u2 y4 v0 y2 u0 y0     \n\
movq      %%mm0, (%0)   # Store YUYV                                      \n\
pand    i_00ffw, %%mm1  # get Y even          00 Y6 00 Y4 00 Y2 00 Y0     \n\
packuswb  %%mm1, %%mm1  # pack Y              Y6 Y4 Y2 Y0 Y6 Y4 Y2 Y0     \n\
punpcklbw %%mm2, %%mm1  #                     v2 Y6 u2 Y4 v0 Y2 u0 Y0     \n\
movq      %%mm1, (%1)   # Store YUYV                                      \n\
"
#elif defined(HAVE_MMX_INTRINSICS)

/* MMX intrinsics */

#include <mmintrin.h>

#define MMX_CALL(MMX_INSTRUCTIONS)          \
    do {                                    \
        __m64 mm0, mm1, mm2, mm3, mm4;      \
        MMX_INSTRUCTIONS                    \
        p_line1 += 16; p_line2 += 16;       \
        p_y1 += 8; p_y2 += 8;               \
        p_u += 4; p_v += 4;                 \
    } while(0)

#define MMX_END _mm_empty()
 
#define MMX_YUV420_YUYV                     \
    mm1 = _mm_cvtsi32_si64(*(int*)p_u);     \
    mm2 = _mm_cvtsi32_si64(*(int*)p_v);     \
    mm0 = (__m64)*(uint64_t*)p_y1;          \
    mm3 = (__m64)*(uint64_t*)p_y2;          \
    mm1 = _mm_unpacklo_pi8(mm1, mm2);       \
    mm2 = mm0;                              \
    mm2 = _mm_unpacklo_pi8(mm2, mm1);       \
    *(uint64_t*)p_line1 = (uint64_t)mm2;    \
    mm0 = _mm_unpackhi_pi8(mm0, mm1);       \
    *(uint64_t*)(p_line1+8) = (uint64_t)mm0;\
    mm4 = mm3;                              \
    mm4 = _mm_unpacklo_pi8(mm4, mm1);       \
    *(uint64_t*)p_line2 = (uint64_t)mm4;    \
    mm3 = _mm_unpackhi_pi8(mm3, mm1);       \
    *(uint64_t*)(p_line2+8) = (uint64_t)mm3;

#define MMX_YUV420_YVYU                     \
    mm2 = _mm_cvtsi32_si64(*(int*)p_u);     \
    mm1 = _mm_cvtsi32_si64(*(int*)p_v);     \
    mm0 = (__m64)*(uint64_t*)p_y1;          \
    mm3 = (__m64)*(uint64_t*)p_y2;          \
    mm1 = _mm_unpacklo_pi8(mm1, mm2);       \
    mm2 = mm0;                              \
    mm2 = _mm_unpacklo_pi8(mm2, mm1);       \
    *(uint64_t*)p_line1 = (uint64_t)mm2;    \
    mm0 = _mm_unpackhi_pi8(mm0, mm1);       \
    *(uint64_t*)(p_line1+8) = (uint64_t)mm0;\
    mm4 = mm3;                              \
    mm4 = _mm_unpacklo_pi8(mm4, mm1);       \
    *(uint64_t*)p_line2 = (uint64_t)mm4;    \
    mm3 = _mm_unpackhi_pi8(mm3, mm1);       \
    *(uint64_t*)(p_line2+8) = (uint64_t)mm3;

#define MMX_YUV420_UYVY                     \
    mm1 = _mm_cvtsi32_si64(*(int*)p_u);     \
    mm2 = _mm_cvtsi32_si64(*(int*)p_v);     \
    mm0 = (__m64)*(uint64_t*)p_y1;          \
    mm3 = (__m64)*(uint64_t*)p_y2;          \
    mm1 = _mm_unpacklo_pi8(mm1, mm2);       \
    mm2 = mm1;                              \
    mm2 = _mm_unpacklo_pi8(mm2, mm0);       \
    *(uint64_t*)p_line1 = (uint64_t)mm2;    \
    mm2 = mm1;                              \
    mm2 = _mm_unpackhi_pi8(mm2, mm0);       \
    *(uint64_t*)(p_line1+8) = (uint64_t)mm2;\
    mm4 = mm1;                              \
    mm4 = _mm_unpacklo_pi8(mm4, mm3);       \
    *(uint64_t*)p_line2 = (uint64_t)mm4;    \
    mm1 = _mm_unpackhi_pi8(mm1, mm3);       \
    *(uint64_t*)(p_line2+8) = (uint64_t)mm1;

#endif

#elif defined( MODULE_NAME_IS_i420_yuy2_sse2 )

#if defined(CAN_COMPILE_SSE2)

/* SSE2 assembly */

#define SSE2_CALL(SSE2_INSTRUCTIONS)    \
    do {                                \
    __asm__ __volatile__(               \
        ".p2align 3 \n\t                \
movq        (%0), %%xmm1  # Load 8 Cb         u7 u6 u5 u4 u3 u2 u1 u0     \n\
movq        (%1), %%xmm2  # Load 8 Cr         v7 06 v5 v4 v3 v2 v1 v0     \n\
" \
        :                               \
        : "r" (p_u),  "r" (p_v) );      \
    __asm__ __volatile__(               \
        ".p2align 3 \n\t"               \
        SSE2_INSTRUCTIONS               \
        :                               \
        : "r" (p_line1), "r" (p_line2), \
          "r" (p_y1),  "r" (p_y2) );    \
        p_line1 += 32; p_line2 += 32;   \
        p_y1 += 16; p_y2 += 16;         \
        p_u += 8; p_v += 8;             \
    } while(0)

#define SSE2_END  __asm__ __volatile__ ( "sfence" ::: "memory" )

#define SSE2_YUV420_YUYV_ALIGNED "                                        \n\
movdqa      (%2), %%xmm0  # Load 16 Y         y15 y14 y13 .. y2 y1 y0     \n\
movdqa      (%3), %%xmm3  # Load 16 Y         Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
punpcklbw %%xmm2, %%xmm1  #                   v7 u7 v6 u6 .. u1 v0 u0     \n\
movdqa    %%xmm0, %%xmm2  #                   y15 y14 y13 .. y2 y1 y0     \n\
punpcklbw %%xmm1, %%xmm2  #                   v3 y7 u3 .. v0 y1 u0 y0     \n\
movntdq   %%xmm2, (%0)    # Store low YUYV                                \n\
punpckhbw %%xmm1, %%xmm0  #                   v3 y7 u3 y6 v2 y5 u2 y4     \n\
movntdq   %%xmm0, 16(%0)  # Store high YUYV                               \n\
movdqa    %%xmm3, %%xmm4  #                   Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
punpcklbw %%xmm1, %%xmm4  #                   v1 Y3 u1 Y2 v0 Y1 u0 Y0     \n\
movntdq   %%xmm4, (%1)    # Store low YUYV                                \n\
punpckhbw %%xmm1, %%xmm3  #                   v3 Y7 u3 Y6 v2 Y5 u2 Y4     \n\
movntdq   %%xmm3, 16(%1)  # Store high YUYV                               \n\
"

#define SSE2_YUV420_YUYV_UNALIGNED "                                      \n\
movdqu      (%2), %%xmm0  # Load 16 Y         y7 y6 y5 y4 y3 y2 y1 y0     \n\
movdqu      (%3), %%xmm3  # Load 16 Y         Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0     \n\
prefetchnta (%0)          # Tell CPU not to cache output YUYV data        \n\
prefetchnta (%1)          # Tell CPU not to cache output YUYV data        \n\
punpcklbw %%xmm2, %%xmm1  #                   v3 u3 v2 u2 v1 u1 v0 u0     \n\
movdqa    %%xmm0, %%xmm2  #                   y7 y6 y5 y4 y3 y2 y1 y0     \n\
punpcklbw %%xmm1, %%xmm2  #                   v1 y3 u1 y2 v0 y1 u0 y0     \n\
movdqu    %%xmm2, (%0)    # Store low YUYV                                \n\