mirror of https://git.ffmpeg.org/ffmpeg.git
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
/*
|
|
* 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 Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; 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"
|
|
#include "libavutil/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
|
|
#if HAVE_MMX
|
|
#undef RENAME
|
|
#undef COMPILE_TEMPLATE_MMX2
|
|
#define COMPILE_TEMPLATE_MMX2 0
|
|
#define RENAME(a) a ## _MMX
|
|
#include "yuv2rgb_template.c"
|
|
#endif /* HAVE_MMX */
|
|
|
|
//MMX2 versions
|
|
#if HAVE_MMX2
|
|
#undef RENAME
|
|
#undef COMPILE_TEMPLATE_MMX2
|
|
#define COMPILE_TEMPLATE_MMX2 1
|
|
#define RENAME(a) a ## _MMX2
|
|
#include "yuv2rgb_template.c"
|
|
#endif /* HAVE_MMX2 */
|
|
|
|
SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)
|
|
{
|
|
int cpu_flags = av_get_cpu_flags();
|
|
|
|
if (c->srcFormat != PIX_FMT_YUV420P &&
|
|
c->srcFormat != PIX_FMT_YUVA420P)
|
|
return NULL;
|
|
|
|
#if HAVE_MMX2
|
|
if (cpu_flags & AV_CPU_FLAG_MMX2) {
|
|
switch (c->dstFormat) {
|
|
case PIX_FMT_RGB24: return yuv420_rgb24_MMX2;
|
|
case PIX_FMT_BGR24: return yuv420_bgr24_MMX2;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (cpu_flags & AV_CPU_FLAG_MMX) {
|
|
switch (c->dstFormat) {
|
|
case PIX_FMT_RGB32:
|
|
if (c->srcFormat == PIX_FMT_YUVA420P) {
|
|
#if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
|
|
return yuva420_rgb32_MMX;
|
|
#endif
|
|
break;
|
|
} else return yuv420_rgb32_MMX;
|
|
case PIX_FMT_BGR32:
|
|
if (c->srcFormat == PIX_FMT_YUVA420P) {
|
|
#if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
|
|
return yuva420_bgr32_MMX;
|
|
#endif
|
|
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;
|
|
}
|