Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (C) 2001-2011 Michael Niedermayer |
||
| 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 | #include |
||
| 22 | #include |
||
| 23 | #include |
||
| 24 | #include |
||
| 25 | |||
| 26 | #include "libavutil/avassert.h" |
||
| 27 | #include "libavutil/avutil.h" |
||
| 28 | #include "libavutil/bswap.h" |
||
| 29 | #include "libavutil/cpu.h" |
||
| 30 | #include "libavutil/intreadwrite.h" |
||
| 31 | #include "libavutil/mathematics.h" |
||
| 32 | #include "libavutil/pixdesc.h" |
||
| 33 | #include "config.h" |
||
| 34 | #include "rgb2rgb.h" |
||
| 35 | #include "swscale_internal.h" |
||
| 36 | #include "swscale.h" |
||
| 37 | |||
| 38 | DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_128)[9][8] = { |
||
| 39 | { 36, 68, 60, 92, 34, 66, 58, 90, }, |
||
| 40 | { 100, 4, 124, 28, 98, 2, 122, 26, }, |
||
| 41 | { 52, 84, 44, 76, 50, 82, 42, 74, }, |
||
| 42 | { 116, 20, 108, 12, 114, 18, 106, 10, }, |
||
| 43 | { 32, 64, 56, 88, 38, 70, 62, 94, }, |
||
| 44 | { 96, 0, 120, 24, 102, 6, 126, 30, }, |
||
| 45 | { 48, 80, 40, 72, 54, 86, 46, 78, }, |
||
| 46 | { 112, 16, 104, 8, 118, 22, 110, 14, }, |
||
| 47 | { 36, 68, 60, 92, 34, 66, 58, 90, }, |
||
| 48 | }; |
||
| 49 | |||
| 50 | DECLARE_ALIGNED(8, static const uint8_t, sws_pb_64)[8] = { |
||
| 51 | 64, 64, 64, 64, 64, 64, 64, 64 |
||
| 52 | }; |
||
| 53 | |||
| 54 | static av_always_inline void fillPlane(uint8_t *plane, int stride, int width, |
||
| 55 | int height, int y, uint8_t val) |
||
| 56 | { |
||
| 57 | int i; |
||
| 58 | uint8_t *ptr = plane + stride * y; |
||
| 59 | for (i = 0; i < height; i++) { |
||
| 60 | memset(ptr, val, width); |
||
| 61 | ptr += stride; |
||
| 62 | } |
||
| 63 | } |
||
| 64 | |||
| 65 | static void hScale16To19_c(SwsContext *c, int16_t *_dst, int dstW, |
||
| 66 | const uint8_t *_src, const int16_t *filter, |
||
| 67 | const int32_t *filterPos, int filterSize) |
||
| 68 | { |
||
| 69 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat); |
||
| 70 | int i; |
||
| 71 | int32_t *dst = (int32_t *) _dst; |
||
| 72 | const uint16_t *src = (const uint16_t *) _src; |
||
| 73 | int bits = desc->comp[0].depth_minus1; |
||
| 74 | int sh = bits - 4; |
||
| 75 | |||
| 76 | if((isAnyRGB(c->srcFormat) || c->srcFormat==AV_PIX_FMT_PAL8) && desc->comp[0].depth_minus1<15) |
||
| 77 | sh= 9; |
||
| 78 | |||
| 79 | for (i = 0; i < dstW; i++) { |
||
| 80 | int j; |
||
| 81 | int srcPos = filterPos[i]; |
||
| 82 | int val = 0; |
||
| 83 | |||
| 84 | for (j = 0; j < filterSize; j++) { |
||
| 85 | val += src[srcPos + j] * filter[filterSize * i + j]; |
||
| 86 | } |
||
| 87 | // filter=14 bit, input=16 bit, output=30 bit, >> 11 makes 19 bit |
||
| 88 | dst[i] = FFMIN(val >> sh, (1 << 19) - 1); |
||
| 89 | } |
||
| 90 | } |
||
| 91 | |||
| 92 | static void hScale16To15_c(SwsContext *c, int16_t *dst, int dstW, |
||
| 93 | const uint8_t *_src, const int16_t *filter, |
||
| 94 | const int32_t *filterPos, int filterSize) |
||
| 95 | { |
||
| 96 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat); |
||
| 97 | int i; |
||
| 98 | const uint16_t *src = (const uint16_t *) _src; |
||
| 99 | int sh = desc->comp[0].depth_minus1; |
||
| 100 | |||
| 101 | if(sh<15) |
||
| 102 | sh= isAnyRGB(c->srcFormat) || c->srcFormat==AV_PIX_FMT_PAL8 ? 13 : desc->comp[0].depth_minus1; |
||
| 103 | |||
| 104 | for (i = 0; i < dstW; i++) { |
||
| 105 | int j; |
||
| 106 | int srcPos = filterPos[i]; |
||
| 107 | int val = 0; |
||
| 108 | |||
| 109 | for (j = 0; j < filterSize; j++) { |
||
| 110 | val += src[srcPos + j] * filter[filterSize * i + j]; |
||
| 111 | } |
||
| 112 | // filter=14 bit, input=16 bit, output=30 bit, >> 15 makes 15 bit |
||
| 113 | dst[i] = FFMIN(val >> sh, (1 << 15) - 1); |
||
| 114 | } |
||
| 115 | } |
||
| 116 | |||
| 117 | // bilinear / bicubic scaling |
||
| 118 | static void hScale8To15_c(SwsContext *c, int16_t *dst, int dstW, |
||
| 119 | const uint8_t *src, const int16_t *filter, |
||
| 120 | const int32_t *filterPos, int filterSize) |
||
| 121 | { |
||
| 122 | int i; |
||
| 123 | for (i = 0; i < dstW; i++) { |
||
| 124 | int j; |
||
| 125 | int srcPos = filterPos[i]; |
||
| 126 | int val = 0; |
||
| 127 | for (j = 0; j < filterSize; j++) { |
||
| 128 | val += ((int)src[srcPos + j]) * filter[filterSize * i + j]; |
||
| 129 | } |
||
| 130 | dst[i] = FFMIN(val >> 7, (1 << 15) - 1); // the cubic equation does overflow ... |
||
| 131 | } |
||
| 132 | } |
||
| 133 | |||
| 134 | static void hScale8To19_c(SwsContext *c, int16_t *_dst, int dstW, |
||
| 135 | const uint8_t *src, const int16_t *filter, |
||
| 136 | const int32_t *filterPos, int filterSize) |
||
| 137 | { |
||
| 138 | int i; |
||
| 139 | int32_t *dst = (int32_t *) _dst; |
||
| 140 | for (i = 0; i < dstW; i++) { |
||
| 141 | int j; |
||
| 142 | int srcPos = filterPos[i]; |
||
| 143 | int val = 0; |
||
| 144 | for (j = 0; j < filterSize; j++) { |
||
| 145 | val += ((int)src[srcPos + j]) * filter[filterSize * i + j]; |
||
| 146 | } |
||
| 147 | dst[i] = FFMIN(val >> 3, (1 << 19) - 1); // the cubic equation does overflow ... |
||
| 148 | } |
||
| 149 | } |
||
| 150 | |||
| 151 | // FIXME all pal and rgb srcFormats could do this conversion as well |
||
| 152 | // FIXME all scalers more complex than bilinear could do half of this transform |
||
| 153 | static void chrRangeToJpeg_c(int16_t *dstU, int16_t *dstV, int width) |
||
| 154 | { |
||
| 155 | int i; |
||
| 156 | for (i = 0; i < width; i++) { |
||
| 157 | dstU[i] = (FFMIN(dstU[i], 30775) * 4663 - 9289992) >> 12; // -264 |
||
| 158 | dstV[i] = (FFMIN(dstV[i], 30775) * 4663 - 9289992) >> 12; // -264 |
||
| 159 | } |
||
| 160 | } |
||
| 161 | |||
| 162 | static void chrRangeFromJpeg_c(int16_t *dstU, int16_t *dstV, int width) |
||
| 163 | { |
||
| 164 | int i; |
||
| 165 | for (i = 0; i < width; i++) { |
||
| 166 | dstU[i] = (dstU[i] * 1799 + 4081085) >> 11; // 1469 |
||
| 167 | dstV[i] = (dstV[i] * 1799 + 4081085) >> 11; // 1469 |
||
| 168 | } |
||
| 169 | } |
||
| 170 | |||
| 171 | static void lumRangeToJpeg_c(int16_t *dst, int width) |
||
| 172 | { |
||
| 173 | int i; |
||
| 174 | for (i = 0; i < width; i++) |
||
| 175 | dst[i] = (FFMIN(dst[i], 30189) * 19077 - 39057361) >> 14; |
||
| 176 | } |
||
| 177 | |||
| 178 | static void lumRangeFromJpeg_c(int16_t *dst, int width) |
||
| 179 | { |
||
| 180 | int i; |
||
| 181 | for (i = 0; i < width; i++) |
||
| 182 | dst[i] = (dst[i] * 14071 + 33561947) >> 14; |
||
| 183 | } |
||
| 184 | |||
| 185 | static void chrRangeToJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width) |
||
| 186 | { |
||
| 187 | int i; |
||
| 188 | int32_t *dstU = (int32_t *) _dstU; |
||
| 189 | int32_t *dstV = (int32_t *) _dstV; |
||
| 190 | for (i = 0; i < width; i++) { |
||
| 191 | dstU[i] = (FFMIN(dstU[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264 |
||
| 192 | dstV[i] = (FFMIN(dstV[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264 |
||
| 193 | } |
||
| 194 | } |
||
| 195 | |||
| 196 | static void chrRangeFromJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width) |
||
| 197 | { |
||
| 198 | int i; |
||
| 199 | int32_t *dstU = (int32_t *) _dstU; |
||
| 200 | int32_t *dstV = (int32_t *) _dstV; |
||
| 201 | for (i = 0; i < width; i++) { |
||
| 202 | dstU[i] = (dstU[i] * 1799 + (4081085 << 4)) >> 11; // 1469 |
||
| 203 | dstV[i] = (dstV[i] * 1799 + (4081085 << 4)) >> 11; // 1469 |
||
| 204 | } |
||
| 205 | } |
||
| 206 | |||
| 207 | static void lumRangeToJpeg16_c(int16_t *_dst, int width) |
||
| 208 | { |
||
| 209 | int i; |
||
| 210 | int32_t *dst = (int32_t *) _dst; |
||
| 211 | for (i = 0; i < width; i++) |
||
| 212 | dst[i] = (FFMIN(dst[i], 30189 << 4) * 4769 - (39057361 << 2)) >> 12; |
||
| 213 | } |
||
| 214 | |||
| 215 | static void lumRangeFromJpeg16_c(int16_t *_dst, int width) |
||
| 216 | { |
||
| 217 | int i; |
||
| 218 | int32_t *dst = (int32_t *) _dst; |
||
| 219 | for (i = 0; i < width; i++) |
||
| 220 | dst[i] = (dst[i]*(14071/4) + (33561947<<4)/4)>>12; |
||
| 221 | } |
||
| 222 | |||
| 223 | static void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth, |
||
| 224 | const uint8_t *src, int srcW, int xInc) |
||
| 225 | { |
||
| 226 | int i; |
||
| 227 | unsigned int xpos = 0; |
||
| 228 | for (i = 0; i < dstWidth; i++) { |
||
| 229 | register unsigned int xx = xpos >> 16; |
||
| 230 | register unsigned int xalpha = (xpos & 0xFFFF) >> 9; |
||
| 231 | dst[i] = (src[xx] << 7) + (src[xx + 1] - src[xx]) * xalpha; |
||
| 232 | xpos += xInc; |
||
| 233 | } |
||
| 234 | for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) |
||
| 235 | dst[i] = src[srcW-1]*128; |
||
| 236 | } |
||
| 237 | |||
| 238 | // *** horizontal scale Y line to temp buffer |
||
| 239 | static av_always_inline void hyscale(SwsContext *c, int16_t *dst, int dstWidth, |
||
| 240 | const uint8_t *src_in[4], |
||
| 241 | int srcW, int xInc, |
||
| 242 | const int16_t *hLumFilter, |
||
| 243 | const int32_t *hLumFilterPos, |
||
| 244 | int hLumFilterSize, |
||
| 245 | uint8_t *formatConvBuffer, |
||
| 246 | uint32_t *pal, int isAlpha) |
||
| 247 | { |
||
| 248 | void (*toYV12)(uint8_t *, const uint8_t *, const uint8_t *, const uint8_t *, int, uint32_t *) = |
||
| 249 | isAlpha ? c->alpToYV12 : c->lumToYV12; |
||
| 250 | void (*convertRange)(int16_t *, int) = isAlpha ? NULL : c->lumConvertRange; |
||
| 251 | const uint8_t *src = src_in[isAlpha ? 3 : 0]; |
||
| 252 | |||
| 253 | if (toYV12) { |
||
| 254 | toYV12(formatConvBuffer, src, src_in[1], src_in[2], srcW, pal); |
||
| 255 | src = formatConvBuffer; |
||
| 256 | } else if (c->readLumPlanar && !isAlpha) { |
||
| 257 | c->readLumPlanar(formatConvBuffer, src_in, srcW, c->input_rgb2yuv_table); |
||
| 258 | src = formatConvBuffer; |
||
| 259 | } else if (c->readAlpPlanar && isAlpha) { |
||
| 260 | c->readAlpPlanar(formatConvBuffer, src_in, srcW, NULL); |
||
| 261 | src = formatConvBuffer; |
||
| 262 | } |
||
| 263 | |||
| 264 | if (!c->hyscale_fast) { |
||
| 265 | c->hyScale(c, dst, dstWidth, src, hLumFilter, |
||
| 266 | hLumFilterPos, hLumFilterSize); |
||
| 267 | } else { // fast bilinear upscale / crap downscale |
||
| 268 | c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc); |
||
| 269 | } |
||
| 270 | |||
| 271 | if (convertRange) |
||
| 272 | convertRange(dst, dstWidth); |
||
| 273 | } |
||
| 274 | |||
| 275 | static void hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2, |
||
| 276 | int dstWidth, const uint8_t *src1, |
||
| 277 | const uint8_t *src2, int srcW, int xInc) |
||
| 278 | { |
||
| 279 | int i; |
||
| 280 | unsigned int xpos = 0; |
||
| 281 | for (i = 0; i < dstWidth; i++) { |
||
| 282 | register unsigned int xx = xpos >> 16; |
||
| 283 | register unsigned int xalpha = (xpos & 0xFFFF) >> 9; |
||
| 284 | dst1[i] = (src1[xx] * (xalpha ^ 127) + src1[xx + 1] * xalpha); |
||
| 285 | dst2[i] = (src2[xx] * (xalpha ^ 127) + src2[xx + 1] * xalpha); |
||
| 286 | xpos += xInc; |
||
| 287 | } |
||
| 288 | for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) { |
||
| 289 | dst1[i] = src1[srcW-1]*128; |
||
| 290 | dst2[i] = src2[srcW-1]*128; |
||
| 291 | } |
||
| 292 | } |
||
| 293 | |||
| 294 | static av_always_inline void hcscale(SwsContext *c, int16_t *dst1, |
||
| 295 | int16_t *dst2, int dstWidth, |
||
| 296 | const uint8_t *src_in[4], |
||
| 297 | int srcW, int xInc, |
||
| 298 | const int16_t *hChrFilter, |
||
| 299 | const int32_t *hChrFilterPos, |
||
| 300 | int hChrFilterSize, |
||
| 301 | uint8_t *formatConvBuffer, uint32_t *pal) |
||
| 302 | { |
||
| 303 | const uint8_t *src1 = src_in[1], *src2 = src_in[2]; |
||
| 304 | if (c->chrToYV12) { |
||
| 305 | uint8_t *buf2 = formatConvBuffer + |
||
| 306 | FFALIGN(srcW*2+78, 16); |
||
| 307 | c->chrToYV12(formatConvBuffer, buf2, src_in[0], src1, src2, srcW, pal); |
||
| 308 | src1= formatConvBuffer; |
||
| 309 | src2= buf2; |
||
| 310 | } else if (c->readChrPlanar) { |
||
| 311 | uint8_t *buf2 = formatConvBuffer + |
||
| 312 | FFALIGN(srcW*2+78, 16); |
||
| 313 | c->readChrPlanar(formatConvBuffer, buf2, src_in, srcW, c->input_rgb2yuv_table); |
||
| 314 | src1 = formatConvBuffer; |
||
| 315 | src2 = buf2; |
||
| 316 | } |
||
| 317 | |||
| 318 | if (!c->hcscale_fast) { |
||
| 319 | c->hcScale(c, dst1, dstWidth, src1, hChrFilter, hChrFilterPos, hChrFilterSize); |
||
| 320 | c->hcScale(c, dst2, dstWidth, src2, hChrFilter, hChrFilterPos, hChrFilterSize); |
||
| 321 | } else { // fast bilinear upscale / crap downscale |
||
| 322 | c->hcscale_fast(c, dst1, dst2, dstWidth, src1, src2, srcW, xInc); |
||
| 323 | } |
||
| 324 | |||
| 325 | if (c->chrConvertRange) |
||
| 326 | c->chrConvertRange(dst1, dst2, dstWidth); |
||
| 327 | } |
||
| 328 | |||
| 329 | #define DEBUG_SWSCALE_BUFFERS 0 |
||
| 330 | #define DEBUG_BUFFERS(...) \ |
||
| 331 | if (DEBUG_SWSCALE_BUFFERS) \ |
||
| 332 | av_log(c, AV_LOG_DEBUG, __VA_ARGS__) |
||
| 333 | |||
| 334 | static int swscale(SwsContext *c, const uint8_t *src[], |
||
| 335 | int srcStride[], int srcSliceY, |
||
| 336 | int srcSliceH, uint8_t *dst[], int dstStride[]) |
||
| 337 | { |
||
| 338 | /* load a few things into local vars to make the code more readable? |
||
| 339 | * and faster */ |
||
| 340 | const int srcW = c->srcW; |
||
| 341 | const int dstW = c->dstW; |
||
| 342 | const int dstH = c->dstH; |
||
| 343 | const int chrDstW = c->chrDstW; |
||
| 344 | const int chrSrcW = c->chrSrcW; |
||
| 345 | const int lumXInc = c->lumXInc; |
||
| 346 | const int chrXInc = c->chrXInc; |
||
| 347 | const enum AVPixelFormat dstFormat = c->dstFormat; |
||
| 348 | const int flags = c->flags; |
||
| 349 | int32_t *vLumFilterPos = c->vLumFilterPos; |
||
| 350 | int32_t *vChrFilterPos = c->vChrFilterPos; |
||
| 351 | int32_t *hLumFilterPos = c->hLumFilterPos; |
||
| 352 | int32_t *hChrFilterPos = c->hChrFilterPos; |
||
| 353 | int16_t *hLumFilter = c->hLumFilter; |
||
| 354 | int16_t *hChrFilter = c->hChrFilter; |
||
| 355 | int32_t *lumMmxFilter = c->lumMmxFilter; |
||
| 356 | int32_t *chrMmxFilter = c->chrMmxFilter; |
||
| 357 | const int vLumFilterSize = c->vLumFilterSize; |
||
| 358 | const int vChrFilterSize = c->vChrFilterSize; |
||
| 359 | const int hLumFilterSize = c->hLumFilterSize; |
||
| 360 | const int hChrFilterSize = c->hChrFilterSize; |
||
| 361 | int16_t **lumPixBuf = c->lumPixBuf; |
||
| 362 | int16_t **chrUPixBuf = c->chrUPixBuf; |
||
| 363 | int16_t **chrVPixBuf = c->chrVPixBuf; |
||
| 364 | int16_t **alpPixBuf = c->alpPixBuf; |
||
| 365 | const int vLumBufSize = c->vLumBufSize; |
||
| 366 | const int vChrBufSize = c->vChrBufSize; |
||
| 367 | uint8_t *formatConvBuffer = c->formatConvBuffer; |
||
| 368 | uint32_t *pal = c->pal_yuv; |
||
| 369 | yuv2planar1_fn yuv2plane1 = c->yuv2plane1; |
||
| 370 | yuv2planarX_fn yuv2planeX = c->yuv2planeX; |
||
| 371 | yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX; |
||
| 372 | yuv2packed1_fn yuv2packed1 = c->yuv2packed1; |
||
| 373 | yuv2packed2_fn yuv2packed2 = c->yuv2packed2; |
||
| 374 | yuv2packedX_fn yuv2packedX = c->yuv2packedX; |
||
| 375 | yuv2anyX_fn yuv2anyX = c->yuv2anyX; |
||
| 376 | const int chrSrcSliceY = srcSliceY >> c->chrSrcVSubSample; |
||
| 377 | const int chrSrcSliceH = FF_CEIL_RSHIFT(srcSliceH, c->chrSrcVSubSample); |
||
| 378 | int should_dither = is9_OR_10BPS(c->srcFormat) || |
||
| 379 | is16BPS(c->srcFormat); |
||
| 380 | int lastDstY; |
||
| 381 | |||
| 382 | /* vars which will change and which we need to store back in the context */ |
||
| 383 | int dstY = c->dstY; |
||
| 384 | int lumBufIndex = c->lumBufIndex; |
||
| 385 | int chrBufIndex = c->chrBufIndex; |
||
| 386 | int lastInLumBuf = c->lastInLumBuf; |
||
| 387 | int lastInChrBuf = c->lastInChrBuf; |
||
| 388 | |||
| 389 | if (!usePal(c->srcFormat)) { |
||
| 390 | pal = c->input_rgb2yuv_table; |
||
| 391 | } |
||
| 392 | |||
| 393 | if (isPacked(c->srcFormat)) { |
||
| 394 | src[0] = |
||
| 395 | src[1] = |
||
| 396 | src[2] = |
||
| 397 | src[3] = src[0]; |
||
| 398 | srcStride[0] = |
||
| 399 | srcStride[1] = |
||
| 400 | srcStride[2] = |
||
| 401 | srcStride[3] = srcStride[0]; |
||
| 402 | } |
||
| 403 | srcStride[1] <<= c->vChrDrop; |
||
| 404 | srcStride[2] <<= c->vChrDrop; |
||
| 405 | |||
| 406 | DEBUG_BUFFERS("swscale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\n", |
||
| 407 | src[0], srcStride[0], src[1], srcStride[1], |
||
| 408 | src[2], srcStride[2], src[3], srcStride[3], |
||
| 409 | dst[0], dstStride[0], dst[1], dstStride[1], |
||
| 410 | dst[2], dstStride[2], dst[3], dstStride[3]); |
||
| 411 | DEBUG_BUFFERS("srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\n", |
||
| 412 | srcSliceY, srcSliceH, dstY, dstH); |
||
| 413 | DEBUG_BUFFERS("vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\n", |
||
| 414 | vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize); |
||
| 415 | |||
| 416 | if (dstStride[0]%16 !=0 || dstStride[1]%16 !=0 || |
||
| 417 | dstStride[2]%16 !=0 || dstStride[3]%16 != 0) { |
||
| 418 | static int warnedAlready = 0; // FIXME maybe move this into the context |
||
| 419 | if (flags & SWS_PRINT_INFO && !warnedAlready) { |
||
| 420 | av_log(c, AV_LOG_WARNING, |
||
| 421 | "Warning: dstStride is not aligned!\n" |
||
| 422 | " ->cannot do aligned memory accesses anymore\n"); |
||
| 423 | warnedAlready = 1; |
||
| 424 | } |
||
| 425 | } |
||
| 426 | |||
| 427 | if ( (uintptr_t)dst[0]%16 || (uintptr_t)dst[1]%16 || (uintptr_t)dst[2]%16 |
||
| 428 | || (uintptr_t)src[0]%16 || (uintptr_t)src[1]%16 || (uintptr_t)src[2]%16 |
||
| 429 | || dstStride[0]%16 || dstStride[1]%16 || dstStride[2]%16 || dstStride[3]%16 |
||
| 430 | || srcStride[0]%16 || srcStride[1]%16 || srcStride[2]%16 || srcStride[3]%16 |
||
| 431 | ) { |
||
| 432 | static int warnedAlready=0; |
||
| 433 | int cpu_flags = av_get_cpu_flags(); |
||
| 434 | if (HAVE_MMXEXT && (cpu_flags & AV_CPU_FLAG_SSE2) && !warnedAlready){ |
||
| 435 | av_log(c, AV_LOG_WARNING, "Warning: data is not aligned! This can lead to a speedloss\n"); |
||
| 436 | warnedAlready=1; |
||
| 437 | } |
||
| 438 | } |
||
| 439 | |||
| 440 | /* Note the user might start scaling the picture in the middle so this |
||
| 441 | * will not get executed. This is not really intended but works |
||
| 442 | * currently, so people might do it. */ |
||
| 443 | if (srcSliceY == 0) { |
||
| 444 | lumBufIndex = -1; |
||
| 445 | chrBufIndex = -1; |
||
| 446 | dstY = 0; |
||
| 447 | lastInLumBuf = -1; |
||
| 448 | lastInChrBuf = -1; |
||
| 449 | } |
||
| 450 | |||
| 451 | if (!should_dither) { |
||
| 452 | c->chrDither8 = c->lumDither8 = sws_pb_64; |
||
| 453 | } |
||
| 454 | lastDstY = dstY; |
||
| 455 | |||
| 456 | for (; dstY < dstH; dstY++) { |
||
| 457 | const int chrDstY = dstY >> c->chrDstVSubSample; |
||
| 458 | uint8_t *dest[4] = { |
||
| 459 | dst[0] + dstStride[0] * dstY, |
||
| 460 | dst[1] + dstStride[1] * chrDstY, |
||
| 461 | dst[2] + dstStride[2] * chrDstY, |
||
| 462 | (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3] + dstStride[3] * dstY : NULL, |
||
| 463 | }; |
||
| 464 | int use_mmx_vfilter= c->use_mmx_vfilter; |
||
| 465 | |||
| 466 | // First line needed as input |
||
| 467 | const int firstLumSrcY = FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]); |
||
| 468 | const int firstLumSrcY2 = FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1 << c->chrDstVSubSample) - 1), dstH - 1)]); |
||
| 469 | // First line needed as input |
||
| 470 | const int firstChrSrcY = FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]); |
||
| 471 | |||
| 472 | // Last line needed as input |
||
| 473 | int lastLumSrcY = FFMIN(c->srcH, firstLumSrcY + vLumFilterSize) - 1; |
||
| 474 | int lastLumSrcY2 = FFMIN(c->srcH, firstLumSrcY2 + vLumFilterSize) - 1; |
||
| 475 | int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1; |
||
| 476 | int enough_lines; |
||
| 477 | |||
| 478 | // handle holes (FAST_BILINEAR & weird filters) |
||
| 479 | if (firstLumSrcY > lastInLumBuf) |
||
| 480 | lastInLumBuf = firstLumSrcY - 1; |
||
| 481 | if (firstChrSrcY > lastInChrBuf) |
||
| 482 | lastInChrBuf = firstChrSrcY - 1; |
||
| 483 | av_assert0(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1); |
||
| 484 | av_assert0(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1); |
||
| 485 | |||
| 486 | DEBUG_BUFFERS("dstY: %d\n", dstY); |
||
| 487 | DEBUG_BUFFERS("\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\n", |
||
| 488 | firstLumSrcY, lastLumSrcY, lastInLumBuf); |
||
| 489 | DEBUG_BUFFERS("\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\n", |
||
| 490 | firstChrSrcY, lastChrSrcY, lastInChrBuf); |
||
| 491 | |||
| 492 | // Do we have enough lines in this slice to output the dstY line |
||
| 493 | enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH && |
||
| 494 | lastChrSrcY < FF_CEIL_RSHIFT(srcSliceY + srcSliceH, c->chrSrcVSubSample); |
||
| 495 | |||
| 496 | if (!enough_lines) { |
||
| 497 | lastLumSrcY = srcSliceY + srcSliceH - 1; |
||
| 498 | lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1; |
||
| 499 | DEBUG_BUFFERS("buffering slice: lastLumSrcY %d lastChrSrcY %d\n", |
||
| 500 | lastLumSrcY, lastChrSrcY); |
||
| 501 | } |
||
| 502 | |||
| 503 | // Do horizontal scaling |
||
| 504 | while (lastInLumBuf < lastLumSrcY) { |
||
| 505 | const uint8_t *src1[4] = { |
||
| 506 | src[0] + (lastInLumBuf + 1 - srcSliceY) * srcStride[0], |
||
| 507 | src[1] + (lastInLumBuf + 1 - srcSliceY) * srcStride[1], |
||
| 508 | src[2] + (lastInLumBuf + 1 - srcSliceY) * srcStride[2], |
||
| 509 | src[3] + (lastInLumBuf + 1 - srcSliceY) * srcStride[3], |
||
| 510 | }; |
||
| 511 | lumBufIndex++; |
||
| 512 | av_assert0(lumBufIndex < 2 * vLumBufSize); |
||
| 513 | av_assert0(lastInLumBuf + 1 - srcSliceY < srcSliceH); |
||
| 514 | av_assert0(lastInLumBuf + 1 - srcSliceY >= 0); |
||
| 515 | hyscale(c, lumPixBuf[lumBufIndex], dstW, src1, srcW, lumXInc, |
||
| 516 | hLumFilter, hLumFilterPos, hLumFilterSize, |
||
| 517 | formatConvBuffer, pal, 0); |
||
| 518 | if (CONFIG_SWSCALE_ALPHA && alpPixBuf) |
||
| 519 | hyscale(c, alpPixBuf[lumBufIndex], dstW, src1, srcW, |
||
| 520 | lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize, |
||
| 521 | formatConvBuffer, pal, 1); |
||
| 522 | lastInLumBuf++; |
||
| 523 | DEBUG_BUFFERS("\t\tlumBufIndex %d: lastInLumBuf: %d\n", |
||
| 524 | lumBufIndex, lastInLumBuf); |
||
| 525 | } |
||
| 526 | while (lastInChrBuf < lastChrSrcY) { |
||
| 527 | const uint8_t *src1[4] = { |
||
| 528 | src[0] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[0], |
||
| 529 | src[1] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[1], |
||
| 530 | src[2] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[2], |
||
| 531 | src[3] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[3], |
||
| 532 | }; |
||
| 533 | chrBufIndex++; |
||
| 534 | av_assert0(chrBufIndex < 2 * vChrBufSize); |
||
| 535 | av_assert0(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH)); |
||
| 536 | av_assert0(lastInChrBuf + 1 - chrSrcSliceY >= 0); |
||
| 537 | // FIXME replace parameters through context struct (some at least) |
||
| 538 | |||
| 539 | if (c->needs_hcscale) |
||
| 540 | hcscale(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex], |
||
| 541 | chrDstW, src1, chrSrcW, chrXInc, |
||
| 542 | hChrFilter, hChrFilterPos, hChrFilterSize, |
||
| 543 | formatConvBuffer, pal); |
||
| 544 | lastInChrBuf++; |
||
| 545 | DEBUG_BUFFERS("\t\tchrBufIndex %d: lastInChrBuf: %d\n", |
||
| 546 | chrBufIndex, lastInChrBuf); |
||
| 547 | } |
||
| 548 | // wrap buf index around to stay inside the ring buffer |
||
| 549 | if (lumBufIndex >= vLumBufSize) |
||
| 550 | lumBufIndex -= vLumBufSize; |
||
| 551 | if (chrBufIndex >= vChrBufSize) |
||
| 552 | chrBufIndex -= vChrBufSize; |
||
| 553 | if (!enough_lines) |
||
| 554 | break; // we can't output a dstY line so let's try with the next slice |
||
| 555 | |||
| 556 | #if HAVE_MMX_INLINE |
||
| 557 | updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex, |
||
| 558 | lastInLumBuf, lastInChrBuf); |
||
| 559 | #endif |
||
| 560 | if (should_dither) { |
||
| 561 | c->chrDither8 = ff_dither_8x8_128[chrDstY & 7]; |
||
| 562 | c->lumDither8 = ff_dither_8x8_128[dstY & 7]; |
||
| 563 | } |
||
| 564 | if (dstY >= dstH - 2) { |
||
| 565 | /* hmm looks like we can't use MMX here without overwriting |
||
| 566 | * this array's tail */ |
||
| 567 | ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX, |
||
| 568 | &yuv2packed1, &yuv2packed2, &yuv2packedX, &yuv2anyX); |
||
| 569 | use_mmx_vfilter= 0; |
||
| 570 | } |
||
| 571 | |||
| 572 | { |
||
| 573 | const int16_t **lumSrcPtr = (const int16_t **)(void*) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize; |
||
| 574 | const int16_t **chrUSrcPtr = (const int16_t **)(void*) chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize; |
||
| 575 | const int16_t **chrVSrcPtr = (const int16_t **)(void*) chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize; |
||
| 576 | const int16_t **alpSrcPtr = (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? |
||
| 577 | (const int16_t **)(void*) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL; |
||
| 578 | int16_t *vLumFilter = c->vLumFilter; |
||
| 579 | int16_t *vChrFilter = c->vChrFilter; |
||
| 580 | |||
| 581 | if (isPlanarYUV(dstFormat) || |
||
| 582 | (isGray(dstFormat) && !isALPHA(dstFormat))) { // YV12 like |
||
| 583 | const int chrSkipMask = (1 << c->chrDstVSubSample) - 1; |
||
| 584 | |||
| 585 | vLumFilter += dstY * vLumFilterSize; |
||
| 586 | vChrFilter += chrDstY * vChrFilterSize; |
||
| 587 | |||
| 588 | // av_assert0(use_mmx_vfilter != ( |
||
| 589 | // yuv2planeX == yuv2planeX_10BE_c |
||
| 590 | // || yuv2planeX == yuv2planeX_10LE_c |
||
| 591 | // || yuv2planeX == yuv2planeX_9BE_c |
||
| 592 | // || yuv2planeX == yuv2planeX_9LE_c |
||
| 593 | // || yuv2planeX == yuv2planeX_16BE_c |
||
| 594 | // || yuv2planeX == yuv2planeX_16LE_c |
||
| 595 | // || yuv2planeX == yuv2planeX_8_c) || !ARCH_X86); |
||
| 596 | |||
| 597 | if(use_mmx_vfilter){ |
||
| 598 | vLumFilter= (int16_t *)c->lumMmxFilter; |
||
| 599 | vChrFilter= (int16_t *)c->chrMmxFilter; |
||
| 600 | } |
||
| 601 | |||
| 602 | if (vLumFilterSize == 1) { |
||
| 603 | yuv2plane1(lumSrcPtr[0], dest[0], dstW, c->lumDither8, 0); |
||
| 604 | } else { |
||
| 605 | yuv2planeX(vLumFilter, vLumFilterSize, |
||
| 606 | lumSrcPtr, dest[0], |
||
| 607 | dstW, c->lumDither8, 0); |
||
| 608 | } |
||
| 609 | |||
| 610 | if (!((dstY & chrSkipMask) || isGray(dstFormat))) { |
||
| 611 | if (yuv2nv12cX) { |
||
| 612 | yuv2nv12cX(c, vChrFilter, |
||
| 613 | vChrFilterSize, chrUSrcPtr, chrVSrcPtr, |
||
| 614 | dest[1], chrDstW); |
||
| 615 | } else if (vChrFilterSize == 1) { |
||
| 616 | yuv2plane1(chrUSrcPtr[0], dest[1], chrDstW, c->chrDither8, 0); |
||
| 617 | yuv2plane1(chrVSrcPtr[0], dest[2], chrDstW, c->chrDither8, 3); |
||
| 618 | } else { |
||
| 619 | yuv2planeX(vChrFilter, |
||
| 620 | vChrFilterSize, chrUSrcPtr, dest[1], |
||
| 621 | chrDstW, c->chrDither8, 0); |
||
| 622 | yuv2planeX(vChrFilter, |
||
| 623 | vChrFilterSize, chrVSrcPtr, dest[2], |
||
| 624 | chrDstW, c->chrDither8, use_mmx_vfilter ? (c->uv_offx2 >> 1) : 3); |
||
| 625 | } |
||
| 626 | } |
||
| 627 | |||
| 628 | if (CONFIG_SWSCALE_ALPHA && alpPixBuf) { |
||
| 629 | if(use_mmx_vfilter){ |
||
| 630 | vLumFilter= (int16_t *)c->alpMmxFilter; |
||
| 631 | } |
||
| 632 | if (vLumFilterSize == 1) { |
||
| 633 | yuv2plane1(alpSrcPtr[0], dest[3], dstW, |
||
| 634 | c->lumDither8, 0); |
||
| 635 | } else { |
||
| 636 | yuv2planeX(vLumFilter, |
||
| 637 | vLumFilterSize, alpSrcPtr, dest[3], |
||
| 638 | dstW, c->lumDither8, 0); |
||
| 639 | } |
||
| 640 | } |
||
| 641 | } else if (yuv2packedX) { |
||
| 642 | av_assert1(lumSrcPtr + vLumFilterSize - 1 < (const int16_t **)lumPixBuf + vLumBufSize * 2); |
||
| 643 | av_assert1(chrUSrcPtr + vChrFilterSize - 1 < (const int16_t **)chrUPixBuf + vChrBufSize * 2); |
||
| 644 | if (c->yuv2packed1 && vLumFilterSize == 1 && |
||
| 645 | vChrFilterSize <= 2) { // unscaled RGB |
||
| 646 | int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1]; |
||
| 647 | yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr, |
||
| 648 | alpPixBuf ? *alpSrcPtr : NULL, |
||
| 649 | dest[0], dstW, chrAlpha, dstY); |
||
| 650 | } else if (c->yuv2packed2 && vLumFilterSize == 2 && |
||
| 651 | vChrFilterSize == 2) { // bilinear upscale RGB |
||
| 652 | int lumAlpha = vLumFilter[2 * dstY + 1]; |
||
| 653 | int chrAlpha = vChrFilter[2 * dstY + 1]; |
||
| 654 | lumMmxFilter[2] = |
||
| 655 | lumMmxFilter[3] = vLumFilter[2 * dstY] * 0x10001; |
||
| 656 | chrMmxFilter[2] = |
||
| 657 | chrMmxFilter[3] = vChrFilter[2 * chrDstY] * 0x10001; |
||
| 658 | yuv2packed2(c, lumSrcPtr, chrUSrcPtr, chrVSrcPtr, |
||
| 659 | alpPixBuf ? alpSrcPtr : NULL, |
||
| 660 | dest[0], dstW, lumAlpha, chrAlpha, dstY); |
||
| 661 | } else { // general RGB |
||
| 662 | yuv2packedX(c, vLumFilter + dstY * vLumFilterSize, |
||
| 663 | lumSrcPtr, vLumFilterSize, |
||
| 664 | vChrFilter + dstY * vChrFilterSize, |
||
| 665 | chrUSrcPtr, chrVSrcPtr, vChrFilterSize, |
||
| 666 | alpSrcPtr, dest[0], dstW, dstY); |
||
| 667 | } |
||
| 668 | } else { |
||
| 669 | av_assert1(!yuv2packed1 && !yuv2packed2); |
||
| 670 | yuv2anyX(c, vLumFilter + dstY * vLumFilterSize, |
||
| 671 | lumSrcPtr, vLumFilterSize, |
||
| 672 | vChrFilter + dstY * vChrFilterSize, |
||
| 673 | chrUSrcPtr, chrVSrcPtr, vChrFilterSize, |
||
| 674 | alpSrcPtr, dest, dstW, dstY); |
||
| 675 | } |
||
| 676 | } |
||
| 677 | } |
||
| 678 | if (isPlanar(dstFormat) && isALPHA(dstFormat) && !alpPixBuf) { |
||
| 679 | int length = dstW; |
||
| 680 | int height = dstY - lastDstY; |
||
| 681 | |||
| 682 | if (is16BPS(dstFormat) || isNBPS(dstFormat)) { |
||
| 683 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat); |
||
| 684 | fillPlane16(dst[3], dstStride[3], length, height, lastDstY, |
||
| 685 | 1, desc->comp[3].depth_minus1, |
||
| 686 | isBE(dstFormat)); |
||
| 687 | } else |
||
| 688 | fillPlane(dst[3], dstStride[3], length, height, lastDstY, 255); |
||
| 689 | } |
||
| 690 | |||
| 691 | #if HAVE_MMXEXT_INLINE |
||
| 692 | if (av_get_cpu_flags() & AV_CPU_FLAG_MMXEXT) |
||
| 693 | __asm__ volatile ("sfence" ::: "memory"); |
||
| 694 | #endif |
||
| 695 | emms_c(); |
||
| 696 | |||
| 697 | /* store changed local vars back in the context */ |
||
| 698 | c->dstY = dstY; |
||
| 699 | c->lumBufIndex = lumBufIndex; |
||
| 700 | c->chrBufIndex = chrBufIndex; |
||
| 701 | c->lastInLumBuf = lastInLumBuf; |
||
| 702 | c->lastInChrBuf = lastInChrBuf; |
||
| 703 | |||
| 704 | return dstY - lastDstY; |
||
| 705 | } |
||
| 706 | |||
| 707 | static av_cold void sws_init_swscale(SwsContext *c) |
||
| 708 | { |
||
| 709 | enum AVPixelFormat srcFormat = c->srcFormat; |
||
| 710 | |||
| 711 | ff_sws_init_output_funcs(c, &c->yuv2plane1, &c->yuv2planeX, |
||
| 712 | &c->yuv2nv12cX, &c->yuv2packed1, |
||
| 713 | &c->yuv2packed2, &c->yuv2packedX, &c->yuv2anyX); |
||
| 714 | |||
| 715 | ff_sws_init_input_funcs(c); |
||
| 716 | |||
| 717 | |||
| 718 | if (c->srcBpc == 8) { |
||
| 719 | if (c->dstBpc <= 14) { |
||
| 720 | c->hyScale = c->hcScale = hScale8To15_c; |
||
| 721 | if (c->flags & SWS_FAST_BILINEAR) { |
||
| 722 | c->hyscale_fast = hyscale_fast_c; |
||
| 723 | c->hcscale_fast = hcscale_fast_c; |
||
| 724 | } |
||
| 725 | } else { |
||
| 726 | c->hyScale = c->hcScale = hScale8To19_c; |
||
| 727 | } |
||
| 728 | } else { |
||
| 729 | c->hyScale = c->hcScale = c->dstBpc > 14 ? hScale16To19_c |
||
| 730 | : hScale16To15_c; |
||
| 731 | } |
||
| 732 | |||
| 733 | if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) { |
||
| 734 | if (c->dstBpc <= 14) { |
||
| 735 | if (c->srcRange) { |
||
| 736 | c->lumConvertRange = lumRangeFromJpeg_c; |
||
| 737 | c->chrConvertRange = chrRangeFromJpeg_c; |
||
| 738 | } else { |
||
| 739 | c->lumConvertRange = lumRangeToJpeg_c; |
||
| 740 | c->chrConvertRange = chrRangeToJpeg_c; |
||
| 741 | } |
||
| 742 | } else { |
||
| 743 | if (c->srcRange) { |
||
| 744 | c->lumConvertRange = lumRangeFromJpeg16_c; |
||
| 745 | c->chrConvertRange = chrRangeFromJpeg16_c; |
||
| 746 | } else { |
||
| 747 | c->lumConvertRange = lumRangeToJpeg16_c; |
||
| 748 | c->chrConvertRange = chrRangeToJpeg16_c; |
||
| 749 | } |
||
| 750 | } |
||
| 751 | } |
||
| 752 | |||
| 753 | if (!(isGray(srcFormat) || isGray(c->dstFormat) || |
||
| 754 | srcFormat == AV_PIX_FMT_MONOBLACK || srcFormat == AV_PIX_FMT_MONOWHITE)) |
||
| 755 | c->needs_hcscale = 1; |
||
| 756 | } |
||
| 757 | |||
| 758 | SwsFunc ff_getSwsFunc(SwsContext *c) |
||
| 759 | { |
||
| 760 | sws_init_swscale(c); |
||
| 761 | |||
| 762 | if (ARCH_PPC) |
||
| 763 | ff_sws_init_swscale_ppc(c); |
||
| 764 | if (ARCH_X86) |
||
| 765 | ff_sws_init_swscale_x86(c); |
||
| 766 | |||
| 767 | return swscale; |
||
| 768 | } |
||
| 769 | |||
| 770 | static void reset_ptr(const uint8_t *src[], int format) |
||
| 771 | { |
||
| 772 | if (!isALPHA(format)) |
||
| 773 | src[3] = NULL; |
||
| 774 | if (!isPlanar(format)) { |
||
| 775 | src[3] = src[2] = NULL; |
||
| 776 | |||
| 777 | if (!usePal(format)) |
||
| 778 | src[1] = NULL; |
||
| 779 | } |
||
| 780 | } |
||
| 781 | |||
| 782 | static int check_image_pointers(const uint8_t * const data[4], enum AVPixelFormat pix_fmt, |
||
| 783 | const int linesizes[4]) |
||
| 784 | { |
||
| 785 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); |
||
| 786 | int i; |
||
| 787 | |||
| 788 | for (i = 0; i < 4; i++) { |
||
| 789 | int plane = desc->comp[i].plane; |
||
| 790 | if (!data[plane] || !linesizes[plane]) |
||
| 791 | return 0; |
||
| 792 | } |
||
| 793 | |||
| 794 | return 1; |
||
| 795 | } |
||
| 796 | |||
| 797 | static void xyz12Torgb48(struct SwsContext *c, uint16_t *dst, |
||
| 798 | const uint16_t *src, int stride, int h) |
||
| 799 | { |
||
| 800 | int xp,yp; |
||
| 801 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat); |
||
| 802 | |||
| 803 | for (yp=0; yp |
||
| 804 | for (xp=0; xp+2 |
||
| 805 | int x, y, z, r, g, b; |
||
| 806 | |||
| 807 | if (desc->flags & AV_PIX_FMT_FLAG_BE) { |
||
| 808 | x = AV_RB16(src + xp + 0); |
||
| 809 | y = AV_RB16(src + xp + 1); |
||
| 810 | z = AV_RB16(src + xp + 2); |
||
| 811 | } else { |
||
| 812 | x = AV_RL16(src + xp + 0); |
||
| 813 | y = AV_RL16(src + xp + 1); |
||
| 814 | z = AV_RL16(src + xp + 2); |
||
| 815 | } |
||
| 816 | |||
| 817 | x = c->xyzgamma[x>>4]; |
||
| 818 | y = c->xyzgamma[y>>4]; |
||
| 819 | z = c->xyzgamma[z>>4]; |
||
| 820 | |||
| 821 | // convert from XYZlinear to sRGBlinear |
||
| 822 | r = c->xyz2rgb_matrix[0][0] * x + |
||
| 823 | c->xyz2rgb_matrix[0][1] * y + |
||
| 824 | c->xyz2rgb_matrix[0][2] * z >> 12; |
||
| 825 | g = c->xyz2rgb_matrix[1][0] * x + |
||
| 826 | c->xyz2rgb_matrix[1][1] * y + |
||
| 827 | c->xyz2rgb_matrix[1][2] * z >> 12; |
||
| 828 | b = c->xyz2rgb_matrix[2][0] * x + |
||
| 829 | c->xyz2rgb_matrix[2][1] * y + |
||
| 830 | c->xyz2rgb_matrix[2][2] * z >> 12; |
||
| 831 | |||
| 832 | // limit values to 12-bit depth |
||
| 833 | r = av_clip_c(r,0,4095); |
||
| 834 | g = av_clip_c(g,0,4095); |
||
| 835 | b = av_clip_c(b,0,4095); |
||
| 836 | |||
| 837 | // convert from sRGBlinear to RGB and scale from 12bit to 16bit |
||
| 838 | if (desc->flags & AV_PIX_FMT_FLAG_BE) { |
||
| 839 | AV_WB16(dst + xp + 0, c->rgbgamma[r] << 4); |
||
| 840 | AV_WB16(dst + xp + 1, c->rgbgamma[g] << 4); |
||
| 841 | AV_WB16(dst + xp + 2, c->rgbgamma[b] << 4); |
||
| 842 | } else { |
||
| 843 | AV_WL16(dst + xp + 0, c->rgbgamma[r] << 4); |
||
| 844 | AV_WL16(dst + xp + 1, c->rgbgamma[g] << 4); |
||
| 845 | AV_WL16(dst + xp + 2, c->rgbgamma[b] << 4); |
||
| 846 | } |
||
| 847 | } |
||
| 848 | src += stride; |
||
| 849 | dst += stride; |
||
| 850 | } |
||
| 851 | } |
||
| 852 | |||
| 853 | static void rgb48Toxyz12(struct SwsContext *c, uint16_t *dst, |
||
| 854 | const uint16_t *src, int stride, int h) |
||
| 855 | { |
||
| 856 | int xp,yp; |
||
| 857 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat); |
||
| 858 | |||
| 859 | for (yp=0; yp |
||
| 860 | for (xp=0; xp+2 |
||
| 861 | int x, y, z, r, g, b; |
||
| 862 | |||
| 863 | if (desc->flags & AV_PIX_FMT_FLAG_BE) { |
||
| 864 | r = AV_RB16(src + xp + 0); |
||
| 865 | g = AV_RB16(src + xp + 1); |
||
| 866 | b = AV_RB16(src + xp + 2); |
||
| 867 | } else { |
||
| 868 | r = AV_RL16(src + xp + 0); |
||
| 869 | g = AV_RL16(src + xp + 1); |
||
| 870 | b = AV_RL16(src + xp + 2); |
||
| 871 | } |
||
| 872 | |||
| 873 | r = c->rgbgammainv[r>>4]; |
||
| 874 | g = c->rgbgammainv[g>>4]; |
||
| 875 | b = c->rgbgammainv[b>>4]; |
||
| 876 | |||
| 877 | // convert from sRGBlinear to XYZlinear |
||
| 878 | x = c->rgb2xyz_matrix[0][0] * r + |
||
| 879 | c->rgb2xyz_matrix[0][1] * g + |
||
| 880 | c->rgb2xyz_matrix[0][2] * b >> 12; |
||
| 881 | y = c->rgb2xyz_matrix[1][0] * r + |
||
| 882 | c->rgb2xyz_matrix[1][1] * g + |
||
| 883 | c->rgb2xyz_matrix[1][2] * b >> 12; |
||
| 884 | z = c->rgb2xyz_matrix[2][0] * r + |
||
| 885 | c->rgb2xyz_matrix[2][1] * g + |
||
| 886 | c->rgb2xyz_matrix[2][2] * b >> 12; |
||
| 887 | |||
| 888 | // limit values to 12-bit depth |
||
| 889 | x = av_clip_c(x,0,4095); |
||
| 890 | y = av_clip_c(y,0,4095); |
||
| 891 | z = av_clip_c(z,0,4095); |
||
| 892 | |||
| 893 | // convert from XYZlinear to X'Y'Z' and scale from 12bit to 16bit |
||
| 894 | if (desc->flags & AV_PIX_FMT_FLAG_BE) { |
||
| 895 | AV_WB16(dst + xp + 0, c->xyzgammainv[x] << 4); |
||
| 896 | AV_WB16(dst + xp + 1, c->xyzgammainv[y] << 4); |
||
| 897 | AV_WB16(dst + xp + 2, c->xyzgammainv[z] << 4); |
||
| 898 | } else { |
||
| 899 | AV_WL16(dst + xp + 0, c->xyzgammainv[x] << 4); |
||
| 900 | AV_WL16(dst + xp + 1, c->xyzgammainv[y] << 4); |
||
| 901 | AV_WL16(dst + xp + 2, c->xyzgammainv[z] << 4); |
||
| 902 | } |
||
| 903 | } |
||
| 904 | src += stride; |
||
| 905 | dst += stride; |
||
| 906 | } |
||
| 907 | } |
||
| 908 | |||
| 909 | /** |
||
| 910 | * swscale wrapper, so we don't need to export the SwsContext. |
||
| 911 | * Assumes planar YUV to be in YUV order instead of YVU. |
||
| 912 | */ |
||
| 913 | int attribute_align_arg sws_scale(struct SwsContext *c, |
||
| 914 | const uint8_t * const srcSlice[], |
||
| 915 | const int srcStride[], int srcSliceY, |
||
| 916 | int srcSliceH, uint8_t *const dst[], |
||
| 917 | const int dstStride[]) |
||
| 918 | { |
||
| 919 | int i, ret; |
||
| 920 | const uint8_t *src2[4]; |
||
| 921 | uint8_t *dst2[4]; |
||
| 922 | uint8_t *rgb0_tmp = NULL; |
||
| 923 | |||
| 924 | if (!srcSlice || !dstStride || !dst || !srcSlice) { |
||
| 925 | av_log(c, AV_LOG_ERROR, "One of the input parameters to sws_scale() is NULL, please check the calling code\n"); |
||
| 926 | return 0; |
||
| 927 | } |
||
| 928 | memcpy(src2, srcSlice, sizeof(src2)); |
||
| 929 | memcpy(dst2, dst, sizeof(dst2)); |
||
| 930 | |||
| 931 | // do not mess up sliceDir if we have a "trailing" 0-size slice |
||
| 932 | if (srcSliceH == 0) |
||
| 933 | return 0; |
||
| 934 | |||
| 935 | if (!check_image_pointers(srcSlice, c->srcFormat, srcStride)) { |
||
| 936 | av_log(c, AV_LOG_ERROR, "bad src image pointers\n"); |
||
| 937 | return 0; |
||
| 938 | } |
||
| 939 | if (!check_image_pointers((const uint8_t* const*)dst, c->dstFormat, dstStride)) { |
||
| 940 | av_log(c, AV_LOG_ERROR, "bad dst image pointers\n"); |
||
| 941 | return 0; |
||
| 942 | } |
||
| 943 | |||
| 944 | if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) { |
||
| 945 | av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n"); |
||
| 946 | return 0; |
||
| 947 | } |
||
| 948 | if (c->sliceDir == 0) { |
||
| 949 | if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1; |
||
| 950 | } |
||
| 951 | |||
| 952 | if (usePal(c->srcFormat)) { |
||
| 953 | for (i = 0; i < 256; i++) { |
||
| 954 | int p, r, g, b, y, u, v, a = 0xff; |
||
| 955 | if (c->srcFormat == AV_PIX_FMT_PAL8) { |
||
| 956 | p = ((const uint32_t *)(srcSlice[1]))[i]; |
||
| 957 | a = (p >> 24) & 0xFF; |
||
| 958 | r = (p >> 16) & 0xFF; |
||
| 959 | g = (p >> 8) & 0xFF; |
||
| 960 | b = p & 0xFF; |
||
| 961 | } else if (c->srcFormat == AV_PIX_FMT_RGB8) { |
||
| 962 | r = ( i >> 5 ) * 36; |
||
| 963 | g = ((i >> 2) & 7) * 36; |
||
| 964 | b = ( i & 3) * 85; |
||
| 965 | } else if (c->srcFormat == AV_PIX_FMT_BGR8) { |
||
| 966 | b = ( i >> 6 ) * 85; |
||
| 967 | g = ((i >> 3) & 7) * 36; |
||
| 968 | r = ( i & 7) * 36; |
||
| 969 | } else if (c->srcFormat == AV_PIX_FMT_RGB4_BYTE) { |
||
| 970 | r = ( i >> 3 ) * 255; |
||
| 971 | g = ((i >> 1) & 3) * 85; |
||
| 972 | b = ( i & 1) * 255; |
||
| 973 | } else if (c->srcFormat == AV_PIX_FMT_GRAY8 || c->srcFormat == AV_PIX_FMT_GRAY8A) { |
||
| 974 | r = g = b = i; |
||
| 975 | } else { |
||
| 976 | av_assert1(c->srcFormat == AV_PIX_FMT_BGR4_BYTE); |
||
| 977 | b = ( i >> 3 ) * 255; |
||
| 978 | g = ((i >> 1) & 3) * 85; |
||
| 979 | r = ( i & 1) * 255; |
||
| 980 | } |
||
| 981 | #define RGB2YUV_SHIFT 15 |
||
| 982 | #define BY ( (int) (0.114 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 983 | #define BV (-(int) (0.081 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 984 | #define BU ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 985 | #define GY ( (int) (0.587 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 986 | #define GV (-(int) (0.419 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 987 | #define GU (-(int) (0.331 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 988 | #define RY ( (int) (0.299 * 219 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 989 | #define RV ( (int) (0.500 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 990 | #define RU (-(int) (0.169 * 224 / 255 * (1 << RGB2YUV_SHIFT) + 0.5)) |
||
| 991 | |||
| 992 | y = av_clip_uint8((RY * r + GY * g + BY * b + ( 33 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); |
||
| 993 | u = av_clip_uint8((RU * r + GU * g + BU * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); |
||
| 994 | v = av_clip_uint8((RV * r + GV * g + BV * b + (257 << (RGB2YUV_SHIFT - 1))) >> RGB2YUV_SHIFT); |
||
| 995 | c->pal_yuv[i]= y + (u<<8) + (v<<16) + ((unsigned)a<<24); |
||
| 996 | |||
| 997 | switch (c->dstFormat) { |
||
| 998 | case AV_PIX_FMT_BGR32: |
||
| 999 | #if !HAVE_BIGENDIAN |
||
| 1000 | case AV_PIX_FMT_RGB24: |
||
| 1001 | #endif |
||
| 1002 | c->pal_rgb[i]= r + (g<<8) + (b<<16) + ((unsigned)a<<24); |
||
| 1003 | break; |
||
| 1004 | case AV_PIX_FMT_BGR32_1: |
||
| 1005 | #if HAVE_BIGENDIAN |
||
| 1006 | case AV_PIX_FMT_BGR24: |
||
| 1007 | #endif |
||
| 1008 | c->pal_rgb[i]= a + (r<<8) + (g<<16) + ((unsigned)b<<24); |
||
| 1009 | break; |
||
| 1010 | case AV_PIX_FMT_RGB32_1: |
||
| 1011 | #if HAVE_BIGENDIAN |
||
| 1012 | case AV_PIX_FMT_RGB24: |
||
| 1013 | #endif |
||
| 1014 | c->pal_rgb[i]= a + (b<<8) + (g<<16) + ((unsigned)r<<24); |
||
| 1015 | break; |
||
| 1016 | case AV_PIX_FMT_RGB32: |
||
| 1017 | #if !HAVE_BIGENDIAN |
||
| 1018 | case AV_PIX_FMT_BGR24: |
||
| 1019 | #endif |
||
| 1020 | default: |
||
| 1021 | c->pal_rgb[i]= b + (g<<8) + (r<<16) + ((unsigned)a<<24); |
||
| 1022 | } |
||
| 1023 | } |
||
| 1024 | } |
||
| 1025 | |||
| 1026 | if (c->src0Alpha && !c->dst0Alpha && isALPHA(c->dstFormat)) { |
||
| 1027 | uint8_t *base; |
||
| 1028 | int x,y; |
||
| 1029 | rgb0_tmp = av_malloc(FFABS(srcStride[0]) * srcSliceH + 32); |
||
| 1030 | if (!rgb0_tmp) |
||
| 1031 | return AVERROR(ENOMEM); |
||
| 1032 | |||
| 1033 | base = srcStride[0] < 0 ? rgb0_tmp - srcStride[0] * (srcSliceH-1) : rgb0_tmp; |
||
| 1034 | for (y=0; y |
||
| 1035 | memcpy(base + srcStride[0]*y, src2[0] + srcStride[0]*y, 4*c->srcW); |
||
| 1036 | for (x=c->src0Alpha-1; x<4*c->srcW; x+=4) { |
||
| 1037 | base[ srcStride[0]*y + x] = 0xFF; |
||
| 1038 | } |
||
| 1039 | } |
||
| 1040 | src2[0] = base; |
||
| 1041 | } |
||
| 1042 | |||
| 1043 | if (c->srcXYZ && !(c->dstXYZ && c->srcW==c->dstW && c->srcH==c->dstH)) { |
||
| 1044 | uint8_t *base; |
||
| 1045 | rgb0_tmp = av_malloc(FFABS(srcStride[0]) * srcSliceH + 32); |
||
| 1046 | if (!rgb0_tmp) |
||
| 1047 | return AVERROR(ENOMEM); |
||
| 1048 | |||
| 1049 | base = srcStride[0] < 0 ? rgb0_tmp - srcStride[0] * (srcSliceH-1) : rgb0_tmp; |
||
| 1050 | |||
| 1051 | xyz12Torgb48(c, (uint16_t*)base, (const uint16_t*)src2[0], srcStride[0]/2, srcSliceH); |
||
| 1052 | src2[0] = base; |
||
| 1053 | } |
||
| 1054 | |||
| 1055 | if (!srcSliceY && (c->flags & SWS_BITEXACT) && c->dither == SWS_DITHER_ED && c->dither_error[0]) |
||
| 1056 | for (i = 0; i < 4; i++) |
||
| 1057 | memset(c->dither_error[i], 0, sizeof(c->dither_error[0][0]) * (c->dstW+2)); |
||
| 1058 | |||
| 1059 | |||
| 1060 | // copy strides, so they can safely be modified |
||
| 1061 | if (c->sliceDir == 1) { |
||
| 1062 | // slices go from top to bottom |
||
| 1063 | int srcStride2[4] = { srcStride[0], srcStride[1], srcStride[2], |
||
| 1064 | srcStride[3] }; |
||
| 1065 | int dstStride2[4] = { dstStride[0], dstStride[1], dstStride[2], |
||
| 1066 | dstStride[3] }; |
||
| 1067 | |||
| 1068 | reset_ptr(src2, c->srcFormat); |
||
| 1069 | reset_ptr((void*)dst2, c->dstFormat); |
||
| 1070 | |||
| 1071 | /* reset slice direction at end of frame */ |
||
| 1072 | if (srcSliceY + srcSliceH == c->srcH) |
||
| 1073 | c->sliceDir = 0; |
||
| 1074 | |||
| 1075 | ret = c->swscale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, |
||
| 1076 | dstStride2); |
||
| 1077 | } else { |
||
| 1078 | // slices go from bottom to top => we flip the image internally |
||
| 1079 | int srcStride2[4] = { -srcStride[0], -srcStride[1], -srcStride[2], |
||
| 1080 | -srcStride[3] }; |
||
| 1081 | int dstStride2[4] = { -dstStride[0], -dstStride[1], -dstStride[2], |
||
| 1082 | -dstStride[3] }; |
||
| 1083 | |||
| 1084 | src2[0] += (srcSliceH - 1) * srcStride[0]; |
||
| 1085 | if (!usePal(c->srcFormat)) |
||
| 1086 | src2[1] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[1]; |
||
| 1087 | src2[2] += ((srcSliceH >> c->chrSrcVSubSample) - 1) * srcStride[2]; |
||
| 1088 | src2[3] += (srcSliceH - 1) * srcStride[3]; |
||
| 1089 | dst2[0] += ( c->dstH - 1) * dstStride[0]; |
||
| 1090 | dst2[1] += ((c->dstH >> c->chrDstVSubSample) - 1) * dstStride[1]; |
||
| 1091 | dst2[2] += ((c->dstH >> c->chrDstVSubSample) - 1) * dstStride[2]; |
||
| 1092 | dst2[3] += ( c->dstH - 1) * dstStride[3]; |
||
| 1093 | |||
| 1094 | reset_ptr(src2, c->srcFormat); |
||
| 1095 | reset_ptr((void*)dst2, c->dstFormat); |
||
| 1096 | |||
| 1097 | /* reset slice direction at end of frame */ |
||
| 1098 | if (!srcSliceY) |
||
| 1099 | c->sliceDir = 0; |
||
| 1100 | |||
| 1101 | ret = c->swscale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, |
||
| 1102 | srcSliceH, dst2, dstStride2); |
||
| 1103 | } |
||
| 1104 | |||
| 1105 | |||
| 1106 | if (c->dstXYZ && !(c->srcXYZ && c->srcW==c->dstW && c->srcH==c->dstH)) { |
||
| 1107 | /* replace on the same data */ |
||
| 1108 | rgb48Toxyz12(c, (uint16_t*)dst2[0], (const uint16_t*)dst2[0], dstStride[0]/2, ret); |
||
| 1109 | } |
||
| 1110 | |||
| 1111 | av_free(rgb0_tmp); |
||
| 1112 | return ret; |
||
| 1113 | } |
||
| 1114 |