mirror of
https://git.ffmpeg.org/ffmpeg.git
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034fc7bf12
* qatar/master: (22 commits)
configure: enable memalign_hack automatically when needed
swscale: unbreak the build on non-x86 systems.
swscale: remove if(bitexact) branch from functions.
swscale: remove if(canMMX2BeUsed) conditional.
swscale: remove swScale_{c,MMX,MMX2} duplication.
swscale: use emms_c().
Move emms_c() from libavcodec to libavutil.
tiff: set palette in the context when specified in TIFF_PAL tag
rtsp: use strtoul to parse rtptime and seq values.
pgssubdec: fix incorrect colors.
dvdsubdec: fix incorrect colors.
ape: Allow demuxing of files with metadata tags.
swscale: remove dead macro WRITEBGR24OLD.
swscale: remove AMD3DNOW "optimizations".
swscale: remove duplicate code in ppc/ subdirectory.
swscale: remove duplicated x86/ functions.
swscale: force --enable-runtime-cpudetect and remove SWS_CPU_CAPS_*.
vsrc_buffer.h: add file doxy
vsrc_buffer: tweak error message in init()
msmpeg4: reindent.
...
Merged-by: Michael Niedermayer <michaelni@gmx.at>
107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/*
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* software YUV to RGB converter
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*
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* Copyright (C) 2009 Konstantin Shishkov
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*
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* MMX/MMX2 template stuff (needed for fast movntq support),
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* 1,4,8bpp support and context / deglobalize stuff
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* by Michael Niedermayer (michaelni@gmx.at)
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <assert.h>
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#include "config.h"
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#include "libswscale/rgb2rgb.h"
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#include "libswscale/swscale.h"
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#include "libswscale/swscale_internal.h"
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#include "libavutil/x86_cpu.h"
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#include "libavutil/cpu.h"
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#define DITHER1XBPP // only for MMX
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/* hope these constant values are cache line aligned */
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DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL;
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DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
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DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
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DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL;
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DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL;
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DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL;
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//MMX versions
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#if HAVE_MMX
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#undef RENAME
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#undef COMPILE_TEMPLATE_MMX2
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#define COMPILE_TEMPLATE_MMX2 0
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#define RENAME(a) a ## _MMX
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#include "yuv2rgb_template.c"
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#endif /* HAVE_MMX */
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//MMX2 versions
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#if HAVE_MMX2
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#undef RENAME
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#undef COMPILE_TEMPLATE_MMX2
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#define COMPILE_TEMPLATE_MMX2 1
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#define RENAME(a) a ## _MMX2
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#include "yuv2rgb_template.c"
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#endif /* HAVE_MMX2 */
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SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)
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{
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int cpu_flags = av_get_cpu_flags();
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if (c->srcFormat != PIX_FMT_YUV420P &&
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c->srcFormat != PIX_FMT_YUVA420P)
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return NULL;
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if (HAVE_MMX2 && cpu_flags & AV_CPU_FLAG_MMX2) {
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switch (c->dstFormat) {
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case PIX_FMT_RGB24: return yuv420_rgb24_MMX2;
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case PIX_FMT_BGR24: return yuv420_bgr24_MMX2;
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}
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}
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if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) {
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switch (c->dstFormat) {
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case PIX_FMT_RGB32:
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if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {
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#if HAVE_7REGS
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return yuva420_rgb32_MMX;
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#endif
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break;
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} else return yuv420_rgb32_MMX;
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case PIX_FMT_BGR32:
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if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {
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#if HAVE_7REGS
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return yuva420_bgr32_MMX;
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#endif
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break;
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} else return yuv420_bgr32_MMX;
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case PIX_FMT_RGB24: return yuv420_rgb24_MMX;
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case PIX_FMT_BGR24: return yuv420_bgr24_MMX;
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case PIX_FMT_RGB565: return yuv420_rgb16_MMX;
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case PIX_FMT_RGB555: return yuv420_rgb15_MMX;
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}
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}
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return NULL;
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}
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