| /* |
| * 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" |
| #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 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; |
| } |