Disable C code when compiling AltiVec code, fixes the warning:
[libav.git] / libswscale / swscale_internal.h
1 /*
2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef SWSCALE_SWSCALE_INTERNAL_H
22 #define SWSCALE_SWSCALE_INTERNAL_H
23
24 #include "config.h"
25
26 #if HAVE_ALTIVEC_H
27 #include <altivec.h>
28 #endif
29
30 #include "libavutil/avutil.h"
31
32 #define STR(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
33
34 #define MAX_FILTER_SIZE 256
35
36 #define VOFW 2048
37 #define VOF (VOFW*2)
38
39 #ifdef WORDS_BIGENDIAN
40 #define ALT32_CORR (-1)
41 #else
42 #define ALT32_CORR 1
43 #endif
44
45 #if ARCH_X86_64
46 # define APCK_PTR2 8
47 # define APCK_COEF 16
48 # define APCK_SIZE 24
49 #else
50 # define APCK_PTR2 4
51 # define APCK_COEF 8
52 # define APCK_SIZE 16
53 #endif
54
55 typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
56 int srcSliceH, uint8_t* dst[], int dstStride[]);
57
58 /* This struct should be aligned on at least a 32-byte boundary. */
59 typedef struct SwsContext{
60 /**
61 * info on struct for av_log
62 */
63 const AVClass *av_class;
64
65 /**
66 * Note that src, dst, srcStride, dstStride will be copied in the
67 * sws_scale() wrapper so they can be freely modified here.
68 */
69 SwsFunc swScale;
70 int srcW, srcH, dstH;
71 int chrSrcW, chrSrcH, chrDstW, chrDstH;
72 int lumXInc, chrXInc;
73 int lumYInc, chrYInc;
74 enum PixelFormat dstFormat, srcFormat; ///< format 4:2:0 type is always YV12
75 int origDstFormat, origSrcFormat; ///< format
76 int chrSrcHSubSample, chrSrcVSubSample;
77 int chrIntHSubSample, chrIntVSubSample;
78 int chrDstHSubSample, chrDstVSubSample;
79 int vChrDrop;
80 int sliceDir;
81 double param[2];
82
83 uint32_t pal_yuv[256];
84 uint32_t pal_rgb[256];
85
86 int16_t **lumPixBuf;
87 int16_t **chrPixBuf;
88 int16_t *hLumFilter;
89 int16_t *hLumFilterPos;
90 int16_t *hChrFilter;
91 int16_t *hChrFilterPos;
92 int16_t *vLumFilter;
93 int16_t *vLumFilterPos;
94 int16_t *vChrFilter;
95 int16_t *vChrFilterPos;
96
97 uint8_t formatConvBuffer[VOF]; //FIXME dynamic allocation, but we have to change a lot of code for this to be useful
98
99 int hLumFilterSize;
100 int hChrFilterSize;
101 int vLumFilterSize;
102 int vChrFilterSize;
103 int vLumBufSize;
104 int vChrBufSize;
105
106 uint8_t *funnyYCode;
107 uint8_t *funnyUVCode;
108 int32_t *lumMmx2FilterPos;
109 int32_t *chrMmx2FilterPos;
110 int16_t *lumMmx2Filter;
111 int16_t *chrMmx2Filter;
112
113 int canMMX2BeUsed;
114
115 int lastInLumBuf;
116 int lastInChrBuf;
117 int lumBufIndex;
118 int chrBufIndex;
119 int dstY;
120 int flags;
121 void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
122 uint8_t * table_rV[256];
123 uint8_t * table_gU[256];
124 int table_gV[256];
125 uint8_t * table_bU[256];
126
127 //Colorspace stuff
128 int contrast, brightness, saturation; // for sws_getColorspaceDetails
129 int srcColorspaceTable[4];
130 int dstColorspaceTable[4];
131 int srcRange, dstRange;
132 int yuv2rgb_y_offset;
133 int yuv2rgb_y_coeff;
134 int yuv2rgb_v2r_coeff;
135 int yuv2rgb_v2g_coeff;
136 int yuv2rgb_u2g_coeff;
137 int yuv2rgb_u2b_coeff;
138
139 #define RED_DITHER "0*8"
140 #define GREEN_DITHER "1*8"
141 #define BLUE_DITHER "2*8"
142 #define Y_COEFF "3*8"
143 #define VR_COEFF "4*8"
144 #define UB_COEFF "5*8"
145 #define VG_COEFF "6*8"
146 #define UG_COEFF "7*8"
147 #define Y_OFFSET "8*8"
148 #define U_OFFSET "9*8"
149 #define V_OFFSET "10*8"
150 #define LUM_MMX_FILTER_OFFSET "11*8"
151 #define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
152 #define DSTW_OFFSET "11*8+4*4*256*2" //do not change, it is hardcoded in the ASM
153 #define ESP_OFFSET "11*8+4*4*256*2+8"
154 #define VROUNDER_OFFSET "11*8+4*4*256*2+16"
155 #define U_TEMP "11*8+4*4*256*2+24"
156 #define V_TEMP "11*8+4*4*256*2+32"
157
158 uint64_t redDither __attribute__((aligned(8)));
159 uint64_t greenDither __attribute__((aligned(8)));
160 uint64_t blueDither __attribute__((aligned(8)));
161
162 uint64_t yCoeff __attribute__((aligned(8)));
163 uint64_t vrCoeff __attribute__((aligned(8)));
164 uint64_t ubCoeff __attribute__((aligned(8)));
165 uint64_t vgCoeff __attribute__((aligned(8)));
166 uint64_t ugCoeff __attribute__((aligned(8)));
167 uint64_t yOffset __attribute__((aligned(8)));
168 uint64_t uOffset __attribute__((aligned(8)));
169 uint64_t vOffset __attribute__((aligned(8)));
170 int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
171 int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
172 int dstW;
173 uint64_t esp __attribute__((aligned(8)));
174 uint64_t vRounder __attribute__((aligned(8)));
175 uint64_t u_temp __attribute__((aligned(8)));
176 uint64_t v_temp __attribute__((aligned(8)));
177
178 #if HAVE_ALTIVEC
179
180 vector signed short CY;
181 vector signed short CRV;
182 vector signed short CBU;
183 vector signed short CGU;
184 vector signed short CGV;
185 vector signed short OY;
186 vector unsigned short CSHIFT;
187 vector signed short *vYCoeffsBank, *vCCoeffsBank;
188
189 #endif
190
191
192 #if ARCH_BFIN
193 uint32_t oy __attribute__((aligned(4)));
194 uint32_t oc __attribute__((aligned(4)));
195 uint32_t zero __attribute__((aligned(4)));
196 uint32_t cy __attribute__((aligned(4)));
197 uint32_t crv __attribute__((aligned(4)));
198 uint32_t rmask __attribute__((aligned(4)));
199 uint32_t cbu __attribute__((aligned(4)));
200 uint32_t bmask __attribute__((aligned(4)));
201 uint32_t cgu __attribute__((aligned(4)));
202 uint32_t cgv __attribute__((aligned(4)));
203 uint32_t gmask __attribute__((aligned(4)));
204 #endif
205
206 #if HAVE_VIS
207 uint64_t sparc_coeffs[10] __attribute__((aligned(8)));
208 #endif
209
210 } SwsContext;
211 //FIXME check init (where 0)
212
213 SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);
214 int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);
215
216 void yuv2rgb_altivec_init_tables (SwsContext *c, const int inv_table[4],int brightness,int contrast, int saturation);
217 SwsFunc yuv2rgb_init_altivec (SwsContext *c);
218 void altivec_yuv2packedX (SwsContext *c,
219 int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
220 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
221 uint8_t *dest, int dstW, int dstY);
222
223 const char *sws_format_name(int format);
224
225 //FIXME replace this with something faster
226 #define isPlanarYUV(x) ( \
227 (x)==PIX_FMT_YUV410P \
228 || (x)==PIX_FMT_YUV420P \
229 || (x)==PIX_FMT_YUV411P \
230 || (x)==PIX_FMT_YUV422P \
231 || (x)==PIX_FMT_YUV444P \
232 || (x)==PIX_FMT_YUV440P \
233 || (x)==PIX_FMT_NV12 \
234 || (x)==PIX_FMT_NV21 \
235 )
236 #define isYUV(x) ( \
237 (x)==PIX_FMT_UYVY422 \
238 || (x)==PIX_FMT_YUYV422 \
239 || isPlanarYUV(x) \
240 )
241 #define isGray(x) ( \
242 (x)==PIX_FMT_GRAY8 \
243 || (x)==PIX_FMT_GRAY16BE \
244 || (x)==PIX_FMT_GRAY16LE \
245 )
246 #define isGray16(x) ( \
247 (x)==PIX_FMT_GRAY16BE \
248 || (x)==PIX_FMT_GRAY16LE \
249 )
250 #define isRGB(x) ( \
251 (x)==PIX_FMT_RGB32 \
252 || (x)==PIX_FMT_RGB32_1 \
253 || (x)==PIX_FMT_RGB24 \
254 || (x)==PIX_FMT_RGB565 \
255 || (x)==PIX_FMT_RGB555 \
256 || (x)==PIX_FMT_RGB8 \
257 || (x)==PIX_FMT_RGB4 \
258 || (x)==PIX_FMT_RGB4_BYTE \
259 || (x)==PIX_FMT_MONOBLACK \
260 || (x)==PIX_FMT_MONOWHITE \
261 )
262 #define isBGR(x) ( \
263 (x)==PIX_FMT_BGR32 \
264 || (x)==PIX_FMT_BGR32_1 \
265 || (x)==PIX_FMT_BGR24 \
266 || (x)==PIX_FMT_BGR565 \
267 || (x)==PIX_FMT_BGR555 \
268 || (x)==PIX_FMT_BGR8 \
269 || (x)==PIX_FMT_BGR4 \
270 || (x)==PIX_FMT_BGR4_BYTE \
271 || (x)==PIX_FMT_MONOBLACK \
272 || (x)==PIX_FMT_MONOWHITE \
273 )
274
275 static inline int fmt_depth(int fmt)
276 {
277 switch(fmt) {
278 case PIX_FMT_BGRA:
279 case PIX_FMT_ABGR:
280 case PIX_FMT_RGBA:
281 case PIX_FMT_ARGB:
282 return 32;
283 case PIX_FMT_BGR24:
284 case PIX_FMT_RGB24:
285 return 24;
286 case PIX_FMT_BGR565:
287 case PIX_FMT_RGB565:
288 case PIX_FMT_GRAY16BE:
289 case PIX_FMT_GRAY16LE:
290 return 16;
291 case PIX_FMT_BGR555:
292 case PIX_FMT_RGB555:
293 return 15;
294 case PIX_FMT_BGR8:
295 case PIX_FMT_RGB8:
296 return 8;
297 case PIX_FMT_BGR4:
298 case PIX_FMT_RGB4:
299 case PIX_FMT_BGR4_BYTE:
300 case PIX_FMT_RGB4_BYTE:
301 return 4;
302 case PIX_FMT_MONOBLACK:
303 case PIX_FMT_MONOWHITE:
304 return 1;
305 default:
306 return 0;
307 }
308 }
309
310 extern const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]);
311 extern const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]);
312
313 extern const AVClass sws_context_class;
314
315 #endif /* SWSCALE_SWSCALE_INTERNAL_H */