239fdf1b4a
Refactoring mmx2/mmxext YASM code with cpuflags will force renames. So switching to a consistent naming scheme beforehand is sensible. The name "mmxext" is more official and widespread and also the name of the CPU flag, as reported e.g. by the Linux kernel.
116 lines
3.5 KiB
C
116 lines
3.5 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 Libav.
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*
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* Libav 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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* Libav 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 Libav; 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/attributes.h"
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#include "libavutil/x86_cpu.h"
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#include "libavutil/cpu.h"
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#if HAVE_INLINE_ASM
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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_MMXEXT
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#define COMPILE_TEMPLATE_MMXEXT 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_MMXEXT
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#undef RENAME
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#undef COMPILE_TEMPLATE_MMXEXT
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#define COMPILE_TEMPLATE_MMXEXT 1
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#define RENAME(a) a ## _MMX2
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#include "yuv2rgb_template.c"
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#endif /* HAVE_MMXEXT */
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#endif /* HAVE_INLINE_ASM */
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av_cold SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)
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{
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#if HAVE_INLINE_ASM
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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_MMXEXT
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if (cpu_flags & AV_CPU_FLAG_MMXEXT) {
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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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#endif
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if (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 (c->srcFormat == PIX_FMT_YUVA420P) {
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#if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
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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 (c->srcFormat == PIX_FMT_YUVA420P) {
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#if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
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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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#endif /* HAVE_INLINE_ASM */
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return NULL;
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}
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