2 * software YUV to RGB converter
4 * Copyright (C) 2001-2007 Michael Niedermayer
5 * (c) 2010 Konstantin Shishkov
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/x86/asm.h"
27 #include "libswscale/swscale_internal.h"
29 #define YUV2RGB_LOOP(depth) \
30 h_size = (c->dstW + 7) & ~7; \
31 if (h_size * depth > FFABS(dstStride[0])) \
34 vshift = c->srcFormat != AV_PIX_FMT_YUV422P; \
36 for (y = 0; y < srcSliceH; y++) { \
37 uint8_t *image = dst[0] + (y + srcSliceY) * dstStride[0]; \
38 const uint8_t *py = src[0] + y * srcStride[0]; \
39 const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1]; \
40 const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2]; \
41 x86_reg index = -h_size / 2; \
43 extern void RENAME(ff_yuv_420_rgb24)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
44 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
45 const uint8_t *py_2index);
46 extern void RENAME(ff_yuv_420_bgr24)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
47 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
48 const uint8_t *py_2index);
50 #if !COMPILE_TEMPLATE_MMXEXT
51 extern void RENAME(ff_yuv_420_rgb15)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
52 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
53 const uint8_t *py_2index);
54 extern void RENAME(ff_yuv_420_rgb16)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
55 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
56 const uint8_t *py_2index);
57 extern void RENAME(ff_yuv_420_rgb32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
58 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
59 const uint8_t *py_2index);
60 extern void RENAME(ff_yuv_420_bgr32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
61 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
62 const uint8_t *py_2index);
63 extern void RENAME(ff_yuva_420_rgb32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
64 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
65 const uint8_t *py_2index, const uint8_t *pa_2index);
66 extern void RENAME(ff_yuva_420_bgr32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
67 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
68 const uint8_t *py_2index, const uint8_t *pa_2index);
70 static inline int RENAME(yuv420_rgb15)(SwsContext *c, const uint8_t *src[],
72 int srcSliceY, int srcSliceH,
73 uint8_t *dst[], int dstStride[])
75 int y, h_size, vshift;
80 c->blueDither = ff_dither8[y & 1];
81 c->greenDither = ff_dither8[y & 1];
82 c->redDither = ff_dither8[(y + 1) & 1];
85 RENAME(ff_yuv_420_rgb15)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
90 static inline int RENAME(yuv420_rgb16)(SwsContext *c, const uint8_t *src[],
92 int srcSliceY, int srcSliceH,
93 uint8_t *dst[], int dstStride[])
95 int y, h_size, vshift;
100 c->blueDither = ff_dither8[y & 1];
101 c->greenDither = ff_dither4[y & 1];
102 c->redDither = ff_dither8[(y + 1) & 1];
105 RENAME(ff_yuv_420_rgb16)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
110 static inline int RENAME(yuv420_rgb32)(SwsContext *c, const uint8_t *src[],
112 int srcSliceY, int srcSliceH,
113 uint8_t *dst[], int dstStride[])
115 int y, h_size, vshift;
119 RENAME(ff_yuv_420_rgb32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
124 static inline int RENAME(yuv420_bgr32)(SwsContext *c, const uint8_t *src[],
126 int srcSliceY, int srcSliceH,
127 uint8_t *dst[], int dstStride[])
129 int y, h_size, vshift;
133 RENAME(ff_yuv_420_bgr32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
138 static inline int RENAME(yuva420_rgb32)(SwsContext *c, const uint8_t *src[],
140 int srcSliceY, int srcSliceH,
141 uint8_t *dst[], int dstStride[])
143 int y, h_size, vshift;
146 const uint8_t *pa = src[3] + y * srcStride[3];
147 RENAME(ff_yuva_420_rgb32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index, pa - 2 * index);
152 static inline int RENAME(yuva420_bgr32)(SwsContext *c, const uint8_t *src[],
154 int srcSliceY, int srcSliceH,
155 uint8_t *dst[], int dstStride[])
157 int y, h_size, vshift;
161 const uint8_t *pa = src[3] + y * srcStride[3];
162 RENAME(ff_yuva_420_bgr32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index, pa - 2 * index);
168 static inline int RENAME(yuv420_rgb24)(SwsContext *c, const uint8_t *src[],
170 int srcSliceY, int srcSliceH,
171 uint8_t *dst[], int dstStride[])
173 int y, h_size, vshift;
177 RENAME(ff_yuv_420_rgb24)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
182 static inline int RENAME(yuv420_bgr24)(SwsContext *c, const uint8_t *src[],
184 int srcSliceY, int srcSliceH,
185 uint8_t *dst[], int dstStride[])
187 int y, h_size, vshift;
191 RENAME(ff_yuv_420_bgr24)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);