PeerStreamer

/*

 * software YUV to RGB converter

 *

 * Copyright (C) 2009 Konstantin Shishkov

 *

 * MMX/MMX2 template stuff (needed for fast movntq support),

 * 1,4,8bpp support and context / deglobalize stuff

 * by Michael Niedermayer (michaelni@gmx.at)

 *

 * 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 <stdio.h>

#include <stdlib.h>

#include <inttypes.h>

#include <assert.h>

#include "config.h"

#include "libswscale/rgb2rgb.h"

#include "libswscale/swscale.h"

#include "libswscale/swscale_internal.h"

#include "libavutil/x86_cpu.h"

#define DITHER1XBPP // only for MMX

/* hope these constant values are cache line aligned */

DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw)   = 0x00ff00ff00ff00ffULL;

DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;

DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;

DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL;

DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL;

DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL;

//MMX versions

#undef RENAME

#undef HAVE_MMX2

#undef HAVE_AMD3DNOW

#define HAVE_MMX2 0

#define HAVE_AMD3DNOW 0

#define RENAME(a) a ## _MMX

#include "yuv2rgb_template.c"

//MMX2 versions

#undef RENAME

#undef HAVE_MMX2

#define HAVE_MMX2 1

#define RENAME(a) a ## _MMX2

#include "yuv2rgb_template.c"

SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)

{

    if (c->flags & SWS_CPU_CAPS_MMX2) {

        switch (c->dstFormat) {

        case PIX_FMT_RGB32:

            if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {

                if (HAVE_7REGS) return yuva420_rgb32_MMX2;

                break;

            } else return yuv420_rgb32_MMX2;

        case PIX_FMT_BGR32:

            if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {

                if (HAVE_7REGS) return yuva420_bgr32_MMX2;

                break;

            } else return yuv420_bgr32_MMX2;

        case PIX_FMT_RGB24:  return yuv420_rgb24_MMX2;

        case PIX_FMT_BGR24:  return yuv420_bgr24_MMX2;

        case PIX_FMT_RGB565: return yuv420_rgb16_MMX2;

        case PIX_FMT_RGB555: return yuv420_rgb15_MMX2;

        }

    }

    if (c->flags & SWS_CPU_CAPS_MMX) {

        switch (c->dstFormat) {

        case PIX_FMT_RGB32:

            if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {

                if (HAVE_7REGS) return yuva420_rgb32_MMX;

                break;

            } else return yuv420_rgb32_MMX;

        case PIX_FMT_BGR32:

            if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {

                if (HAVE_7REGS) return yuva420_bgr32_MMX;

                break;

            } else return yuv420_bgr32_MMX;

        case PIX_FMT_RGB24:  return yuv420_rgb24_MMX;

        case PIX_FMT_BGR24:  return yuv420_bgr24_MMX;

        case PIX_FMT_RGB565: return yuv420_rgb16_MMX;

        case PIX_FMT_RGB555: return yuv420_rgb15_MMX;

        }

    }

    return NULL;

}