yading@11: /*
yading@11:  * software YUV to RGB converter
yading@11:  *
yading@11:  * Copyright (C) 2009 Konstantin Shishkov
yading@11:  *
yading@11:  * MMX/MMXEXT template stuff (needed for fast movntq support),
yading@11:  * 1,4,8bpp support and context / deglobalize stuff
yading@11:  * by Michael Niedermayer (michaelni@gmx.at)
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: #include <stdio.h>
yading@11: #include <stdlib.h>
yading@11: #include <inttypes.h>
yading@11: #include <assert.h>
yading@11: 
yading@11: #include "config.h"
yading@11: #include "libswscale/rgb2rgb.h"
yading@11: #include "libswscale/swscale.h"
yading@11: #include "libswscale/swscale_internal.h"
yading@11: #include "libavutil/attributes.h"
yading@11: #include "libavutil/x86/asm.h"
yading@11: #include "libavutil/cpu.h"
yading@11: 
yading@11: #if HAVE_INLINE_ASM
yading@11: 
yading@11: #define DITHER1XBPP // only for MMX
yading@11: 
yading@11: /* hope these constant values are cache line aligned */
yading@11: DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw)   = 0x00ff00ff00ff00ffULL;
yading@11: DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
yading@11: DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
yading@11: DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL;
yading@11: DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL;
yading@11: DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL;
yading@11: 
yading@11: //MMX versions
yading@11: #if HAVE_MMX_INLINE
yading@11: #undef RENAME
yading@11: #undef COMPILE_TEMPLATE_MMXEXT
yading@11: #define COMPILE_TEMPLATE_MMXEXT 0
yading@11: #define RENAME(a) a ## _MMX
yading@11: #include "yuv2rgb_template.c"
yading@11: #endif /* HAVE_MMX_INLINE */
yading@11: 
yading@11: // MMXEXT versions
yading@11: #if HAVE_MMXEXT_INLINE
yading@11: #undef RENAME
yading@11: #undef COMPILE_TEMPLATE_MMXEXT
yading@11: #define COMPILE_TEMPLATE_MMXEXT 1
yading@11: #define RENAME(a) a ## _MMXEXT
yading@11: #include "yuv2rgb_template.c"
yading@11: #endif /* HAVE_MMXEXT_INLINE */
yading@11: 
yading@11: #endif /* HAVE_INLINE_ASM */
yading@11: 
yading@11: av_cold SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)
yading@11: {
yading@11: #if HAVE_INLINE_ASM
yading@11:     int cpu_flags = av_get_cpu_flags();
yading@11: 
yading@11: #if HAVE_MMXEXT_INLINE
yading@11:     if (cpu_flags & AV_CPU_FLAG_MMXEXT) {
yading@11:         switch (c->dstFormat) {
yading@11:         case AV_PIX_FMT_RGB24:
yading@11:             return yuv420_rgb24_MMXEXT;
yading@11:         case AV_PIX_FMT_BGR24:
yading@11:             return yuv420_bgr24_MMXEXT;
yading@11:         }
yading@11:     }
yading@11: #endif
yading@11: 
yading@11:     if (cpu_flags & AV_CPU_FLAG_MMX) {
yading@11:         switch (c->dstFormat) {
yading@11:             case AV_PIX_FMT_RGB32:
yading@11:                 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
yading@11: #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
yading@11:                     return yuva420_rgb32_MMX;
yading@11: #endif
yading@11:                     break;
yading@11:                 } else return yuv420_rgb32_MMX;
yading@11:             case AV_PIX_FMT_BGR32:
yading@11:                 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
yading@11: #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
yading@11:                     return yuva420_bgr32_MMX;
yading@11: #endif
yading@11:                     break;
yading@11:                 } else return yuv420_bgr32_MMX;
yading@11:             case AV_PIX_FMT_RGB24:  return yuv420_rgb24_MMX;
yading@11:             case AV_PIX_FMT_BGR24:  return yuv420_bgr24_MMX;
yading@11:             case AV_PIX_FMT_RGB565: return yuv420_rgb16_MMX;
yading@11:             case AV_PIX_FMT_RGB555: return yuv420_rgb15_MMX;
yading@11:         }
yading@11:     }
yading@11: #endif /* HAVE_INLINE_ASM */
yading@11: 
yading@11:     return NULL;
yading@11: }