| 1 | /* |
| 2 | * software YUV to RGB converter |
| 3 | * |
| 4 | * Copyright (C) 2009 Konstantin Shishkov |
| 5 | * |
| 6 | * MMX/MMXEXT template stuff (needed for fast movntq support), |
| 7 | * 1,4,8bpp support and context / deglobalize stuff |
| 8 | * by Michael Niedermayer (michaelni@gmx.at) |
| 9 | * |
| 10 | * This file is part of FFmpeg. |
| 11 | * |
| 12 | * FFmpeg is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU Lesser General Public |
| 14 | * License as published by the Free Software Foundation; either |
| 15 | * version 2.1 of the License, or (at your option) any later version. |
| 16 | * |
| 17 | * FFmpeg is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 20 | * Lesser General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU Lesser General Public |
| 23 | * License along with FFmpeg; if not, write to the Free Software |
| 24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 25 | */ |
| 26 | |
| 27 | #include <stdio.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <inttypes.h> |
| 30 | |
| 31 | #include "config.h" |
| 32 | #include "libswscale/rgb2rgb.h" |
| 33 | #include "libswscale/swscale.h" |
| 34 | #include "libswscale/swscale_internal.h" |
| 35 | #include "libavutil/attributes.h" |
| 36 | #include "libavutil/x86/asm.h" |
| 37 | #include "libavutil/x86/cpu.h" |
| 38 | #include "libavutil/cpu.h" |
| 39 | |
| 40 | #if HAVE_INLINE_ASM |
| 41 | |
| 42 | #define DITHER1XBPP // only for MMX |
| 43 | |
| 44 | /* hope these constant values are cache line aligned */ |
| 45 | DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL; |
| 46 | DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL; |
| 47 | DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL; |
| 48 | DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL; |
| 49 | DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL; |
| 50 | DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL; |
| 51 | |
| 52 | //MMX versions |
| 53 | #if HAVE_MMX_INLINE && HAVE_6REGS |
| 54 | #undef RENAME |
| 55 | #undef COMPILE_TEMPLATE_MMXEXT |
| 56 | #define COMPILE_TEMPLATE_MMXEXT 0 |
| 57 | #define RENAME(a) a ## _mmx |
| 58 | #include "yuv2rgb_template.c" |
| 59 | #endif /* HAVE_MMX_INLINE && HAVE_6REGS */ |
| 60 | |
| 61 | // MMXEXT versions |
| 62 | #if HAVE_MMXEXT_INLINE && HAVE_6REGS |
| 63 | #undef RENAME |
| 64 | #undef COMPILE_TEMPLATE_MMXEXT |
| 65 | #define COMPILE_TEMPLATE_MMXEXT 1 |
| 66 | #define RENAME(a) a ## _mmxext |
| 67 | #include "yuv2rgb_template.c" |
| 68 | #endif /* HAVE_MMXEXT_INLINE && HAVE_6REGS */ |
| 69 | |
| 70 | #endif /* HAVE_INLINE_ASM */ |
| 71 | |
| 72 | av_cold SwsFunc ff_yuv2rgb_init_x86(SwsContext *c) |
| 73 | { |
| 74 | #if HAVE_MMX_INLINE && HAVE_6REGS |
| 75 | int cpu_flags = av_get_cpu_flags(); |
| 76 | |
| 77 | #if HAVE_MMXEXT_INLINE |
| 78 | if (INLINE_MMXEXT(cpu_flags)) { |
| 79 | switch (c->dstFormat) { |
| 80 | case AV_PIX_FMT_RGB24: |
| 81 | return yuv420_rgb24_mmxext; |
| 82 | case AV_PIX_FMT_BGR24: |
| 83 | return yuv420_bgr24_mmxext; |
| 84 | } |
| 85 | } |
| 86 | #endif |
| 87 | |
| 88 | if (INLINE_MMX(cpu_flags)) { |
| 89 | switch (c->dstFormat) { |
| 90 | case AV_PIX_FMT_RGB32: |
| 91 | if (c->srcFormat == AV_PIX_FMT_YUVA420P) { |
| 92 | #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA |
| 93 | return yuva420_rgb32_mmx; |
| 94 | #endif |
| 95 | break; |
| 96 | } else |
| 97 | return yuv420_rgb32_mmx; |
| 98 | case AV_PIX_FMT_BGR32: |
| 99 | if (c->srcFormat == AV_PIX_FMT_YUVA420P) { |
| 100 | #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA |
| 101 | return yuva420_bgr32_mmx; |
| 102 | #endif |
| 103 | break; |
| 104 | } else |
| 105 | return yuv420_bgr32_mmx; |
| 106 | case AV_PIX_FMT_RGB24: |
| 107 | return yuv420_rgb24_mmx; |
| 108 | case AV_PIX_FMT_BGR24: |
| 109 | return yuv420_bgr24_mmx; |
| 110 | case AV_PIX_FMT_RGB565: |
| 111 | return yuv420_rgb16_mmx; |
| 112 | case AV_PIX_FMT_RGB555: |
| 113 | return yuv420_rgb15_mmx; |
| 114 | } |
| 115 | } |
| 116 | #endif /* HAVE_MMX_INLINE && HAVE_6REGS */ |
| 117 | |
| 118 | return NULL; |
| 119 | } |