Hans Verkuil | 63881df | 2014-08-25 08:02:14 -0300 | [diff] [blame] | 1 | /* |
| 2 | * vivid-tpg.c - Test Pattern Generator |
| 3 | * |
| 4 | * Note: gen_twopix and tpg_gen_text are based on code from vivi.c. See the |
| 5 | * vivi.c source for the copyright information of those functions. |
| 6 | * |
| 7 | * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. |
| 8 | * |
| 9 | * This program is free software; you may redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; version 2 of the License. |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 14 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 15 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 16 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 17 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 18 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 19 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 20 | * SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #include "vivid-tpg.h" |
| 24 | |
| 25 | /* Must remain in sync with enum tpg_pattern */ |
| 26 | const char * const tpg_pattern_strings[] = { |
| 27 | "75% Colorbar", |
| 28 | "100% Colorbar", |
| 29 | "CSC Colorbar", |
| 30 | "Horizontal 100% Colorbar", |
| 31 | "100% Color Squares", |
| 32 | "100% Black", |
| 33 | "100% White", |
| 34 | "100% Red", |
| 35 | "100% Green", |
| 36 | "100% Blue", |
| 37 | "16x16 Checkers", |
| 38 | "1x1 Checkers", |
| 39 | "Alternating Hor Lines", |
| 40 | "Alternating Vert Lines", |
| 41 | "One Pixel Wide Cross", |
| 42 | "Two Pixels Wide Cross", |
| 43 | "Ten Pixels Wide Cross", |
| 44 | "Gray Ramp", |
| 45 | "Noise", |
| 46 | NULL |
| 47 | }; |
| 48 | |
| 49 | /* Must remain in sync with enum tpg_aspect */ |
| 50 | const char * const tpg_aspect_strings[] = { |
| 51 | "Source Width x Height", |
| 52 | "4x3", |
| 53 | "14x9", |
| 54 | "16x9", |
| 55 | "16x9 Anamorphic", |
| 56 | NULL |
| 57 | }; |
| 58 | |
| 59 | /* |
| 60 | * Sine table: sin[0] = 127 * sin(-180 degrees) |
| 61 | * sin[128] = 127 * sin(0 degrees) |
| 62 | * sin[256] = 127 * sin(180 degrees) |
| 63 | */ |
| 64 | static const s8 sin[257] = { |
| 65 | 0, -4, -7, -11, -13, -18, -20, -22, -26, -29, -33, -35, -37, -41, -43, -48, |
| 66 | -50, -52, -56, -58, -62, -63, -65, -69, -71, -75, -76, -78, -82, -83, -87, -88, |
| 67 | -90, -93, -94, -97, -99, -101, -103, -104, -107, -108, -110, -111, -112, -114, -115, -117, |
| 68 | -118, -119, -120, -121, -122, -123, -123, -124, -125, -125, -126, -126, -127, -127, -127, -127, |
| 69 | -127, -127, -127, -127, -126, -126, -125, -125, -124, -124, -123, -122, -121, -120, -119, -118, |
| 70 | -117, -116, -114, -113, -111, -110, -109, -107, -105, -103, -101, -100, -97, -96, -93, -91, |
| 71 | -90, -87, -85, -82, -80, -76, -75, -73, -69, -67, -63, -62, -60, -56, -54, -50, |
| 72 | -48, -46, -41, -39, -35, -33, -31, -26, -24, -20, -18, -15, -11, -9, -4, -2, |
| 73 | 0, 2, 4, 9, 11, 15, 18, 20, 24, 26, 31, 33, 35, 39, 41, 46, |
| 74 | 48, 50, 54, 56, 60, 62, 64, 67, 69, 73, 75, 76, 80, 82, 85, 87, |
| 75 | 90, 91, 93, 96, 97, 100, 101, 103, 105, 107, 109, 110, 111, 113, 114, 116, |
| 76 | 117, 118, 119, 120, 121, 122, 123, 124, 124, 125, 125, 126, 126, 127, 127, 127, |
| 77 | 127, 127, 127, 127, 127, 126, 126, 125, 125, 124, 123, 123, 122, 121, 120, 119, |
| 78 | 118, 117, 115, 114, 112, 111, 110, 108, 107, 104, 103, 101, 99, 97, 94, 93, |
| 79 | 90, 88, 87, 83, 82, 78, 76, 75, 71, 69, 65, 64, 62, 58, 56, 52, |
| 80 | 50, 48, 43, 41, 37, 35, 33, 29, 26, 22, 20, 18, 13, 11, 7, 4, |
| 81 | 0, |
| 82 | }; |
| 83 | |
| 84 | #define cos(idx) sin[((idx) + 64) % sizeof(sin)] |
| 85 | |
| 86 | /* Global font descriptor */ |
| 87 | static const u8 *font8x16; |
| 88 | |
| 89 | void tpg_set_font(const u8 *f) |
| 90 | { |
| 91 | font8x16 = f; |
| 92 | } |
| 93 | |
| 94 | void tpg_init(struct tpg_data *tpg, unsigned w, unsigned h) |
| 95 | { |
| 96 | memset(tpg, 0, sizeof(*tpg)); |
| 97 | tpg->scaled_width = tpg->src_width = w; |
| 98 | tpg->src_height = tpg->buf_height = h; |
| 99 | tpg->crop.width = tpg->compose.width = w; |
| 100 | tpg->crop.height = tpg->compose.height = h; |
| 101 | tpg->recalc_colors = true; |
| 102 | tpg->recalc_square_border = true; |
| 103 | tpg->brightness = 128; |
| 104 | tpg->contrast = 128; |
| 105 | tpg->saturation = 128; |
| 106 | tpg->hue = 0; |
| 107 | tpg->mv_hor_mode = TPG_MOVE_NONE; |
| 108 | tpg->mv_vert_mode = TPG_MOVE_NONE; |
| 109 | tpg->field = V4L2_FIELD_NONE; |
| 110 | tpg_s_fourcc(tpg, V4L2_PIX_FMT_RGB24); |
| 111 | tpg->colorspace = V4L2_COLORSPACE_SRGB; |
| 112 | tpg->perc_fill = 100; |
| 113 | } |
| 114 | |
| 115 | int tpg_alloc(struct tpg_data *tpg, unsigned max_w) |
| 116 | { |
| 117 | unsigned pat; |
| 118 | unsigned plane; |
| 119 | |
| 120 | tpg->max_line_width = max_w; |
| 121 | for (pat = 0; pat < TPG_MAX_PAT_LINES; pat++) { |
| 122 | for (plane = 0; plane < TPG_MAX_PLANES; plane++) { |
| 123 | unsigned pixelsz = plane ? 1 : 4; |
| 124 | |
| 125 | tpg->lines[pat][plane] = vzalloc(max_w * 2 * pixelsz); |
| 126 | if (!tpg->lines[pat][plane]) |
| 127 | return -ENOMEM; |
| 128 | } |
| 129 | } |
| 130 | for (plane = 0; plane < TPG_MAX_PLANES; plane++) { |
| 131 | unsigned pixelsz = plane ? 1 : 4; |
| 132 | |
| 133 | tpg->contrast_line[plane] = vzalloc(max_w * pixelsz); |
| 134 | if (!tpg->contrast_line[plane]) |
| 135 | return -ENOMEM; |
| 136 | tpg->black_line[plane] = vzalloc(max_w * pixelsz); |
| 137 | if (!tpg->black_line[plane]) |
| 138 | return -ENOMEM; |
Hans Verkuil | c204e1f | 2014-10-07 08:58:55 -0300 | [diff] [blame] | 139 | tpg->random_line[plane] = vzalloc(max_w * 2 * pixelsz); |
Hans Verkuil | 63881df | 2014-08-25 08:02:14 -0300 | [diff] [blame] | 140 | if (!tpg->random_line[plane]) |
| 141 | return -ENOMEM; |
| 142 | } |
| 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | void tpg_free(struct tpg_data *tpg) |
| 147 | { |
| 148 | unsigned pat; |
| 149 | unsigned plane; |
| 150 | |
| 151 | for (pat = 0; pat < TPG_MAX_PAT_LINES; pat++) |
| 152 | for (plane = 0; plane < TPG_MAX_PLANES; plane++) { |
| 153 | vfree(tpg->lines[pat][plane]); |
| 154 | tpg->lines[pat][plane] = NULL; |
| 155 | } |
| 156 | for (plane = 0; plane < TPG_MAX_PLANES; plane++) { |
| 157 | vfree(tpg->contrast_line[plane]); |
| 158 | vfree(tpg->black_line[plane]); |
| 159 | vfree(tpg->random_line[plane]); |
| 160 | tpg->contrast_line[plane] = NULL; |
| 161 | tpg->black_line[plane] = NULL; |
| 162 | tpg->random_line[plane] = NULL; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | bool tpg_s_fourcc(struct tpg_data *tpg, u32 fourcc) |
| 167 | { |
| 168 | tpg->fourcc = fourcc; |
| 169 | tpg->planes = 1; |
| 170 | tpg->recalc_colors = true; |
| 171 | switch (fourcc) { |
| 172 | case V4L2_PIX_FMT_RGB565: |
| 173 | case V4L2_PIX_FMT_RGB565X: |
| 174 | case V4L2_PIX_FMT_RGB555: |
| 175 | case V4L2_PIX_FMT_XRGB555: |
| 176 | case V4L2_PIX_FMT_ARGB555: |
| 177 | case V4L2_PIX_FMT_RGB555X: |
| 178 | case V4L2_PIX_FMT_RGB24: |
| 179 | case V4L2_PIX_FMT_BGR24: |
| 180 | case V4L2_PIX_FMT_RGB32: |
| 181 | case V4L2_PIX_FMT_BGR32: |
| 182 | case V4L2_PIX_FMT_XRGB32: |
| 183 | case V4L2_PIX_FMT_XBGR32: |
| 184 | case V4L2_PIX_FMT_ARGB32: |
| 185 | case V4L2_PIX_FMT_ABGR32: |
Mauro Carvalho Chehab | 6c515a4 | 2014-09-03 15:53:45 -0300 | [diff] [blame] | 186 | tpg->is_yuv = false; |
Hans Verkuil | 63881df | 2014-08-25 08:02:14 -0300 | [diff] [blame] | 187 | break; |
| 188 | case V4L2_PIX_FMT_NV16M: |
| 189 | case V4L2_PIX_FMT_NV61M: |
| 190 | tpg->planes = 2; |
| 191 | /* fall-through */ |
| 192 | case V4L2_PIX_FMT_YUYV: |
| 193 | case V4L2_PIX_FMT_UYVY: |
| 194 | case V4L2_PIX_FMT_YVYU: |
| 195 | case V4L2_PIX_FMT_VYUY: |
Mauro Carvalho Chehab | 6c515a4 | 2014-09-03 15:53:45 -0300 | [diff] [blame] | 196 | tpg->is_yuv = true; |
Hans Verkuil | 63881df | 2014-08-25 08:02:14 -0300 | [diff] [blame] | 197 | break; |
| 198 | default: |
| 199 | return false; |
| 200 | } |
| 201 | |
| 202 | switch (fourcc) { |
| 203 | case V4L2_PIX_FMT_RGB565: |
| 204 | case V4L2_PIX_FMT_RGB565X: |
| 205 | case V4L2_PIX_FMT_RGB555: |
| 206 | case V4L2_PIX_FMT_XRGB555: |
| 207 | case V4L2_PIX_FMT_ARGB555: |
| 208 | case V4L2_PIX_FMT_RGB555X: |
| 209 | case V4L2_PIX_FMT_YUYV: |
| 210 | case V4L2_PIX_FMT_UYVY: |
| 211 | case V4L2_PIX_FMT_YVYU: |
| 212 | case V4L2_PIX_FMT_VYUY: |
| 213 | tpg->twopixelsize[0] = 2 * 2; |
| 214 | break; |
| 215 | case V4L2_PIX_FMT_RGB24: |
| 216 | case V4L2_PIX_FMT_BGR24: |
| 217 | tpg->twopixelsize[0] = 2 * 3; |
| 218 | break; |
| 219 | case V4L2_PIX_FMT_RGB32: |
| 220 | case V4L2_PIX_FMT_BGR32: |
| 221 | case V4L2_PIX_FMT_XRGB32: |
| 222 | case V4L2_PIX_FMT_XBGR32: |
| 223 | case V4L2_PIX_FMT_ARGB32: |
| 224 | case V4L2_PIX_FMT_ABGR32: |
| 225 | tpg->twopixelsize[0] = 2 * 4; |
| 226 | break; |
| 227 | case V4L2_PIX_FMT_NV16M: |
| 228 | case V4L2_PIX_FMT_NV61M: |
| 229 | tpg->twopixelsize[0] = 2; |
| 230 | tpg->twopixelsize[1] = 2; |
| 231 | break; |
| 232 | } |
| 233 | return true; |
| 234 | } |
| 235 | |
| 236 | void tpg_s_crop_compose(struct tpg_data *tpg, const struct v4l2_rect *crop, |
| 237 | const struct v4l2_rect *compose) |
| 238 | { |
| 239 | tpg->crop = *crop; |
| 240 | tpg->compose = *compose; |
| 241 | tpg->scaled_width = (tpg->src_width * tpg->compose.width + |
| 242 | tpg->crop.width - 1) / tpg->crop.width; |
| 243 | tpg->scaled_width &= ~1; |
| 244 | if (tpg->scaled_width > tpg->max_line_width) |
| 245 | tpg->scaled_width = tpg->max_line_width; |
| 246 | if (tpg->scaled_width < 2) |
| 247 | tpg->scaled_width = 2; |
| 248 | tpg->recalc_lines = true; |
| 249 | } |
| 250 | |
| 251 | void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height, |
Hans Verkuil | 73d8102 | 2014-09-03 10:18:57 -0300 | [diff] [blame] | 252 | u32 field) |
Hans Verkuil | 63881df | 2014-08-25 08:02:14 -0300 | [diff] [blame] | 253 | { |
| 254 | unsigned p; |
| 255 | |
| 256 | tpg->src_width = width; |
| 257 | tpg->src_height = height; |
| 258 | tpg->field = field; |
| 259 | tpg->buf_height = height; |
| 260 | if (V4L2_FIELD_HAS_T_OR_B(field)) |
| 261 | tpg->buf_height /= 2; |
| 262 | tpg->scaled_width = width; |
| 263 | tpg->crop.top = tpg->crop.left = 0; |
| 264 | tpg->crop.width = width; |
| 265 | tpg->crop.height = height; |
| 266 | tpg->compose.top = tpg->compose.left = 0; |
| 267 | tpg->compose.width = width; |
| 268 | tpg->compose.height = tpg->buf_height; |
| 269 | for (p = 0; p < tpg->planes; p++) |
| 270 | tpg->bytesperline[p] = width * tpg->twopixelsize[p] / 2; |
| 271 | tpg->recalc_square_border = true; |
| 272 | } |
| 273 | |
| 274 | static enum tpg_color tpg_get_textbg_color(struct tpg_data *tpg) |
| 275 | { |
| 276 | switch (tpg->pattern) { |
| 277 | case TPG_PAT_BLACK: |
| 278 | return TPG_COLOR_100_WHITE; |
| 279 | case TPG_PAT_CSC_COLORBAR: |
| 280 | return TPG_COLOR_CSC_BLACK; |
| 281 | default: |
| 282 | return TPG_COLOR_100_BLACK; |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | static enum tpg_color tpg_get_textfg_color(struct tpg_data *tpg) |
| 287 | { |
| 288 | switch (tpg->pattern) { |
| 289 | case TPG_PAT_75_COLORBAR: |
| 290 | case TPG_PAT_CSC_COLORBAR: |
| 291 | return TPG_COLOR_CSC_WHITE; |
| 292 | case TPG_PAT_BLACK: |
| 293 | return TPG_COLOR_100_BLACK; |
| 294 | default: |
| 295 | return TPG_COLOR_100_WHITE; |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | static u16 color_to_y(struct tpg_data *tpg, int r, int g, int b) |
| 300 | { |
| 301 | switch (tpg->colorspace) { |
| 302 | case V4L2_COLORSPACE_SMPTE170M: |
| 303 | case V4L2_COLORSPACE_470_SYSTEM_M: |
| 304 | case V4L2_COLORSPACE_470_SYSTEM_BG: |
| 305 | return ((16829 * r + 33039 * g + 6416 * b + 16 * 32768) >> 16) + (16 << 4); |
| 306 | case V4L2_COLORSPACE_SMPTE240M: |
| 307 | return ((11932 * r + 39455 * g + 4897 * b + 16 * 32768) >> 16) + (16 << 4); |
| 308 | case V4L2_COLORSPACE_REC709: |
| 309 | case V4L2_COLORSPACE_SRGB: |
| 310 | default: |
| 311 | return ((11966 * r + 40254 * g + 4064 * b + 16 * 32768) >> 16) + (16 << 4); |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | static u16 color_to_cb(struct tpg_data *tpg, int r, int g, int b) |
| 316 | { |
| 317 | switch (tpg->colorspace) { |
| 318 | case V4L2_COLORSPACE_SMPTE170M: |
| 319 | case V4L2_COLORSPACE_470_SYSTEM_M: |
| 320 | case V4L2_COLORSPACE_470_SYSTEM_BG: |
| 321 | return ((-9714 * r - 19070 * g + 28784 * b + 16 * 32768) >> 16) + (128 << 4); |
| 322 | case V4L2_COLORSPACE_SMPTE240M: |
| 323 | return ((-6684 * r - 22100 * g + 28784 * b + 16 * 32768) >> 16) + (128 << 4); |
| 324 | case V4L2_COLORSPACE_REC709: |
| 325 | case V4L2_COLORSPACE_SRGB: |
| 326 | default: |
| 327 | return ((-6596 * r - 22189 * g + 28784 * b + 16 * 32768) >> 16) + (128 << 4); |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | static u16 color_to_cr(struct tpg_data *tpg, int r, int g, int b) |
| 332 | { |
| 333 | switch (tpg->colorspace) { |
| 334 | case V4L2_COLORSPACE_SMPTE170M: |
| 335 | case V4L2_COLORSPACE_470_SYSTEM_M: |
| 336 | case V4L2_COLORSPACE_470_SYSTEM_BG: |
| 337 | return ((28784 * r - 24103 * g - 4681 * b + 16 * 32768) >> 16) + (128 << 4); |
| 338 | case V4L2_COLORSPACE_SMPTE240M: |
| 339 | return ((28784 * r - 25606 * g - 3178 * b + 16 * 32768) >> 16) + (128 << 4); |
| 340 | case V4L2_COLORSPACE_REC709: |
| 341 | case V4L2_COLORSPACE_SRGB: |
| 342 | default: |
| 343 | return ((28784 * r - 26145 * g - 2639 * b + 16 * 32768) >> 16) + (128 << 4); |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | static u16 ycbcr_to_r(struct tpg_data *tpg, int y, int cb, int cr) |
| 348 | { |
| 349 | int r; |
| 350 | |
| 351 | y -= 16 << 4; |
| 352 | cb -= 128 << 4; |
| 353 | cr -= 128 << 4; |
| 354 | switch (tpg->colorspace) { |
| 355 | case V4L2_COLORSPACE_SMPTE170M: |
| 356 | case V4L2_COLORSPACE_470_SYSTEM_M: |
| 357 | case V4L2_COLORSPACE_470_SYSTEM_BG: |
| 358 | r = 4769 * y + 6537 * cr; |
| 359 | break; |
| 360 | case V4L2_COLORSPACE_SMPTE240M: |
| 361 | r = 4769 * y + 7376 * cr; |
| 362 | break; |
| 363 | case V4L2_COLORSPACE_REC709: |
| 364 | case V4L2_COLORSPACE_SRGB: |
| 365 | default: |
| 366 | r = 4769 * y + 7343 * cr; |
| 367 | break; |
| 368 | } |
| 369 | return clamp(r >> 12, 0, 0xff0); |
| 370 | } |
| 371 | |
| 372 | static u16 ycbcr_to_g(struct tpg_data *tpg, int y, int cb, int cr) |
| 373 | { |
| 374 | int g; |
| 375 | |
| 376 | y -= 16 << 4; |
| 377 | cb -= 128 << 4; |
| 378 | cr -= 128 << 4; |
| 379 | switch (tpg->colorspace) { |
| 380 | case V4L2_COLORSPACE_SMPTE170M: |
| 381 | case V4L2_COLORSPACE_470_SYSTEM_M: |
| 382 | case V4L2_COLORSPACE_470_SYSTEM_BG: |
| 383 | g = 4769 * y - 1605 * cb - 3330 * cr; |
| 384 | break; |
| 385 | case V4L2_COLORSPACE_SMPTE240M: |
| 386 | g = 4769 * y - 1055 * cb - 2341 * cr; |
| 387 | break; |
| 388 | case V4L2_COLORSPACE_REC709: |
| 389 | case V4L2_COLORSPACE_SRGB: |
| 390 | default: |
| 391 | g = 4769 * y - 873 * cb - 2183 * cr; |
| 392 | break; |
| 393 | } |
| 394 | return clamp(g >> 12, 0, 0xff0); |
| 395 | } |
| 396 | |
| 397 | static u16 ycbcr_to_b(struct tpg_data *tpg, int y, int cb, int cr) |
| 398 | { |
| 399 | int b; |
| 400 | |
| 401 | y -= 16 << 4; |
| 402 | cb -= 128 << 4; |
| 403 | cr -= 128 << 4; |
| 404 | switch (tpg->colorspace) { |
| 405 | case V4L2_COLORSPACE_SMPTE170M: |
| 406 | case V4L2_COLORSPACE_470_SYSTEM_M: |
| 407 | case V4L2_COLORSPACE_470_SYSTEM_BG: |
| 408 | b = 4769 * y + 7343 * cb; |
| 409 | break; |
| 410 | case V4L2_COLORSPACE_SMPTE240M: |
| 411 | b = 4769 * y + 8552 * cb; |
| 412 | break; |
| 413 | case V4L2_COLORSPACE_REC709: |
| 414 | case V4L2_COLORSPACE_SRGB: |
| 415 | default: |
| 416 | b = 4769 * y + 8652 * cb; |
| 417 | break; |
| 418 | } |
| 419 | return clamp(b >> 12, 0, 0xff0); |
| 420 | } |
| 421 | |
| 422 | /* precalculate color bar values to speed up rendering */ |
| 423 | static void precalculate_color(struct tpg_data *tpg, int k) |
| 424 | { |
| 425 | int col = k; |
| 426 | int r = tpg_colors[col].r; |
| 427 | int g = tpg_colors[col].g; |
| 428 | int b = tpg_colors[col].b; |
| 429 | |
| 430 | if (k == TPG_COLOR_TEXTBG) { |
| 431 | col = tpg_get_textbg_color(tpg); |
| 432 | |
| 433 | r = tpg_colors[col].r; |
| 434 | g = tpg_colors[col].g; |
| 435 | b = tpg_colors[col].b; |
| 436 | } else if (k == TPG_COLOR_TEXTFG) { |
| 437 | col = tpg_get_textfg_color(tpg); |
| 438 | |
| 439 | r = tpg_colors[col].r; |
| 440 | g = tpg_colors[col].g; |
| 441 | b = tpg_colors[col].b; |
| 442 | } else if (tpg->pattern == TPG_PAT_NOISE) { |
| 443 | r = g = b = prandom_u32_max(256); |
| 444 | } else if (k == TPG_COLOR_RANDOM) { |
| 445 | r = g = b = tpg->qual_offset + prandom_u32_max(196); |
| 446 | } else if (k >= TPG_COLOR_RAMP) { |
| 447 | r = g = b = k - TPG_COLOR_RAMP; |
| 448 | } |
| 449 | |
| 450 | if (tpg->pattern == TPG_PAT_CSC_COLORBAR && col <= TPG_COLOR_CSC_BLACK) { |
| 451 | r = tpg_csc_colors[tpg->colorspace][col].r; |
| 452 | g = tpg_csc_colors[tpg->colorspace][col].g; |
| 453 | b = tpg_csc_colors[tpg->colorspace][col].b; |
| 454 | } else { |
| 455 | r <<= 4; |
| 456 | g <<= 4; |
| 457 | b <<= 4; |
| 458 | } |
| 459 | if (tpg->qual == TPG_QUAL_GRAY) |
| 460 | r = g = b = color_to_y(tpg, r, g, b); |
| 461 | |
| 462 | /* |
| 463 | * The assumption is that the RGB output is always full range, |
| 464 | * so only if the rgb_range overrides the 'real' rgb range do |
| 465 | * we need to convert the RGB values. |
| 466 | * |
| 467 | * Currently there is no way of signalling to userspace if you |
| 468 | * are actually giving it limited range RGB (or full range |
| 469 | * YUV for that matter). |
| 470 | * |
| 471 | * Remember that r, g and b are still in the 0 - 0xff0 range. |
| 472 | */ |
| 473 | if (tpg->real_rgb_range == V4L2_DV_RGB_RANGE_LIMITED && |
| 474 | tpg->rgb_range == V4L2_DV_RGB_RANGE_FULL) { |
| 475 | /* |
| 476 | * Convert from full range (which is what r, g and b are) |
| 477 | * to limited range (which is the 'real' RGB range), which |
| 478 | * is then interpreted as full range. |
| 479 | */ |
| 480 | r = (r * 219) / 255 + (16 << 4); |
| 481 | g = (g * 219) / 255 + (16 << 4); |
| 482 | b = (b * 219) / 255 + (16 << 4); |
| 483 | } else if (tpg->real_rgb_range != V4L2_DV_RGB_RANGE_LIMITED && |
| 484 | tpg->rgb_range == V4L2_DV_RGB_RANGE_LIMITED) { |
| 485 | /* |
| 486 | * Clamp r, g and b to the limited range and convert to full |
| 487 | * range since that's what we deliver. |
| 488 | */ |
| 489 | r = clamp(r, 16 << 4, 235 << 4); |
| 490 | g = clamp(g, 16 << 4, 235 << 4); |
| 491 | b = clamp(b, 16 << 4, 235 << 4); |
| 492 | r = (r - (16 << 4)) * 255 / 219; |
| 493 | g = (g - (16 << 4)) * 255 / 219; |
| 494 | b = (b - (16 << 4)) * 255 / 219; |
| 495 | } |
| 496 | |
| 497 | if (tpg->brightness != 128 || tpg->contrast != 128 || |
| 498 | tpg->saturation != 128 || tpg->hue) { |
| 499 | /* Implement these operations */ |
| 500 | |
| 501 | /* First convert to YCbCr */ |
| 502 | int y = color_to_y(tpg, r, g, b); /* Luma */ |
| 503 | int cb = color_to_cb(tpg, r, g, b); /* Cb */ |
| 504 | int cr = color_to_cr(tpg, r, g, b); /* Cr */ |
| 505 | int tmp_cb, tmp_cr; |
| 506 | |
| 507 | y = (16 << 4) + ((y - (16 << 4)) * tpg->contrast) / 128; |
| 508 | y += (tpg->brightness << 4) - (128 << 4); |
| 509 | |
| 510 | cb -= 128 << 4; |
| 511 | cr -= 128 << 4; |
| 512 | tmp_cb = (cb * cos(128 + tpg->hue)) / 127 + (cr * sin[128 + tpg->hue]) / 127; |
| 513 | tmp_cr = (cr * cos(128 + tpg->hue)) / 127 - (cb * sin[128 + tpg->hue]) / 127; |
| 514 | |
| 515 | cb = (128 << 4) + (tmp_cb * tpg->contrast * tpg->saturation) / (128 * 128); |
| 516 | cr = (128 << 4) + (tmp_cr * tpg->contrast * tpg->saturation) / (128 * 128); |
| 517 | if (tpg->is_yuv) { |
| 518 | tpg->colors[k][0] = clamp(y >> 4, 1, 254); |
| 519 | tpg->colors[k][1] = clamp(cb >> 4, 1, 254); |
| 520 | tpg->colors[k][2] = clamp(cr >> 4, 1, 254); |
| 521 | return; |
| 522 | } |
| 523 | r = ycbcr_to_r(tpg, y, cb, cr); |
| 524 | g = ycbcr_to_g(tpg, y, cb, cr); |
| 525 | b = ycbcr_to_b(tpg, y, cb, cr); |
| 526 | } |
| 527 | |
| 528 | if (tpg->is_yuv) { |
| 529 | /* Convert to YCbCr */ |
| 530 | u16 y = color_to_y(tpg, r, g, b); /* Luma */ |
| 531 | u16 cb = color_to_cb(tpg, r, g, b); /* Cb */ |
| 532 | u16 cr = color_to_cr(tpg, r, g, b); /* Cr */ |
| 533 | |
| 534 | tpg->colors[k][0] = clamp(y >> 4, 1, 254); |
| 535 | tpg->colors[k][1] = clamp(cb >> 4, 1, 254); |
| 536 | tpg->colors[k][2] = clamp(cr >> 4, 1, 254); |
| 537 | } else { |
| 538 | switch (tpg->fourcc) { |
| 539 | case V4L2_PIX_FMT_RGB565: |
| 540 | case V4L2_PIX_FMT_RGB565X: |
| 541 | r >>= 7; |
| 542 | g >>= 6; |
| 543 | b >>= 7; |
| 544 | break; |
| 545 | case V4L2_PIX_FMT_RGB555: |
| 546 | case V4L2_PIX_FMT_XRGB555: |
| 547 | case V4L2_PIX_FMT_ARGB555: |
| 548 | case V4L2_PIX_FMT_RGB555X: |
| 549 | r >>= 7; |
| 550 | g >>= 7; |
| 551 | b >>= 7; |
| 552 | break; |
| 553 | default: |
| 554 | r >>= 4; |
| 555 | g >>= 4; |
| 556 | b >>= 4; |
| 557 | break; |
| 558 | } |
| 559 | |
| 560 | tpg->colors[k][0] = r; |
| 561 | tpg->colors[k][1] = g; |
| 562 | tpg->colors[k][2] = b; |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | static void tpg_precalculate_colors(struct tpg_data *tpg) |
| 567 | { |
| 568 | int k; |
| 569 | |
| 570 | for (k = 0; k < TPG_COLOR_MAX; k++) |
| 571 | precalculate_color(tpg, k); |
| 572 | } |
| 573 | |
| 574 | /* 'odd' is true for pixels 1, 3, 5, etc. and false for pixels 0, 2, 4, etc. */ |
| 575 | static void gen_twopix(struct tpg_data *tpg, |
| 576 | u8 buf[TPG_MAX_PLANES][8], int color, bool odd) |
| 577 | { |
| 578 | unsigned offset = odd * tpg->twopixelsize[0] / 2; |
| 579 | u8 alpha = tpg->alpha_component; |
| 580 | u8 r_y, g_u, b_v; |
| 581 | |
| 582 | if (tpg->alpha_red_only && color != TPG_COLOR_CSC_RED && |
| 583 | color != TPG_COLOR_100_RED && |
| 584 | color != TPG_COLOR_75_RED) |
| 585 | alpha = 0; |
| 586 | if (color == TPG_COLOR_RANDOM) |
| 587 | precalculate_color(tpg, color); |
| 588 | r_y = tpg->colors[color][0]; /* R or precalculated Y */ |
| 589 | g_u = tpg->colors[color][1]; /* G or precalculated U */ |
| 590 | b_v = tpg->colors[color][2]; /* B or precalculated V */ |
| 591 | |
| 592 | switch (tpg->fourcc) { |
| 593 | case V4L2_PIX_FMT_NV16M: |
| 594 | buf[0][offset] = r_y; |
| 595 | buf[1][offset] = odd ? b_v : g_u; |
| 596 | break; |
| 597 | case V4L2_PIX_FMT_NV61M: |
| 598 | buf[0][offset] = r_y; |
| 599 | buf[1][offset] = odd ? g_u : b_v; |
| 600 | break; |
| 601 | |
| 602 | case V4L2_PIX_FMT_YUYV: |
| 603 | buf[0][offset] = r_y; |
| 604 | buf[0][offset + 1] = odd ? b_v : g_u; |
| 605 | break; |
| 606 | case V4L2_PIX_FMT_UYVY: |
| 607 | buf[0][offset] = odd ? b_v : g_u; |
| 608 | buf[0][offset + 1] = r_y; |
| 609 | break; |
| 610 | case V4L2_PIX_FMT_YVYU: |
| 611 | buf[0][offset] = r_y; |
| 612 | buf[0][offset + 1] = odd ? g_u : b_v; |
| 613 | break; |
| 614 | case V4L2_PIX_FMT_VYUY: |
| 615 | buf[0][offset] = odd ? g_u : b_v; |
| 616 | buf[0][offset + 1] = r_y; |
| 617 | break; |
| 618 | case V4L2_PIX_FMT_RGB565: |
| 619 | buf[0][offset] = (g_u << 5) | b_v; |
| 620 | buf[0][offset + 1] = (r_y << 3) | (g_u >> 3); |
| 621 | break; |
| 622 | case V4L2_PIX_FMT_RGB565X: |
| 623 | buf[0][offset] = (r_y << 3) | (g_u >> 3); |
| 624 | buf[0][offset + 1] = (g_u << 5) | b_v; |
| 625 | break; |
| 626 | case V4L2_PIX_FMT_RGB555: |
| 627 | case V4L2_PIX_FMT_XRGB555: |
| 628 | alpha = 0; |
| 629 | /* fall through */ |
| 630 | case V4L2_PIX_FMT_ARGB555: |
| 631 | buf[0][offset] = (g_u << 5) | b_v; |
| 632 | buf[0][offset + 1] = (alpha & 0x80) | (r_y << 2) | (g_u >> 3); |
| 633 | break; |
| 634 | case V4L2_PIX_FMT_RGB555X: |
| 635 | buf[0][offset] = (alpha & 0x80) | (r_y << 2) | (g_u >> 3); |
| 636 | buf[0][offset + 1] = (g_u << 5) | b_v; |
| 637 | break; |
| 638 | case V4L2_PIX_FMT_RGB24: |
| 639 | buf[0][offset] = r_y; |
| 640 | buf[0][offset + 1] = g_u; |
| 641 | buf[0][offset + 2] = b_v; |
| 642 | break; |
| 643 | case V4L2_PIX_FMT_BGR24: |
| 644 | buf[0][offset] = b_v; |
| 645 | buf[0][offset + 1] = g_u; |
| 646 | buf[0][offset + 2] = r_y; |
| 647 | break; |
| 648 | case V4L2_PIX_FMT_RGB32: |
| 649 | case V4L2_PIX_FMT_XRGB32: |
| 650 | alpha = 0; |
| 651 | /* fall through */ |
| 652 | case V4L2_PIX_FMT_ARGB32: |
| 653 | buf[0][offset] = alpha; |
| 654 | buf[0][offset + 1] = r_y; |
| 655 | buf[0][offset + 2] = g_u; |
| 656 | buf[0][offset + 3] = b_v; |
| 657 | break; |
| 658 | case V4L2_PIX_FMT_BGR32: |
| 659 | case V4L2_PIX_FMT_XBGR32: |
| 660 | alpha = 0; |
| 661 | /* fall through */ |
| 662 | case V4L2_PIX_FMT_ABGR32: |
| 663 | buf[0][offset] = b_v; |
| 664 | buf[0][offset + 1] = g_u; |
| 665 | buf[0][offset + 2] = r_y; |
| 666 | buf[0][offset + 3] = alpha; |
| 667 | break; |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | /* Return how many pattern lines are used by the current pattern. */ |
| 672 | static unsigned tpg_get_pat_lines(struct tpg_data *tpg) |
| 673 | { |
| 674 | switch (tpg->pattern) { |
| 675 | case TPG_PAT_CHECKERS_16X16: |
| 676 | case TPG_PAT_CHECKERS_1X1: |
| 677 | case TPG_PAT_ALTERNATING_HLINES: |
| 678 | case TPG_PAT_CROSS_1_PIXEL: |
| 679 | case TPG_PAT_CROSS_2_PIXELS: |
| 680 | case TPG_PAT_CROSS_10_PIXELS: |
| 681 | return 2; |
| 682 | case TPG_PAT_100_COLORSQUARES: |
| 683 | case TPG_PAT_100_HCOLORBAR: |
| 684 | return 8; |
| 685 | default: |
| 686 | return 1; |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | /* Which pattern line should be used for the given frame line. */ |
| 691 | static unsigned tpg_get_pat_line(struct tpg_data *tpg, unsigned line) |
| 692 | { |
| 693 | switch (tpg->pattern) { |
| 694 | case TPG_PAT_CHECKERS_16X16: |
| 695 | return (line >> 4) & 1; |
| 696 | case TPG_PAT_CHECKERS_1X1: |
| 697 | case TPG_PAT_ALTERNATING_HLINES: |
| 698 | return line & 1; |
| 699 | case TPG_PAT_100_COLORSQUARES: |
| 700 | case TPG_PAT_100_HCOLORBAR: |
| 701 | return (line * 8) / tpg->src_height; |
| 702 | case TPG_PAT_CROSS_1_PIXEL: |
| 703 | return line == tpg->src_height / 2; |
| 704 | case TPG_PAT_CROSS_2_PIXELS: |
| 705 | return (line + 1) / 2 == tpg->src_height / 4; |
| 706 | case TPG_PAT_CROSS_10_PIXELS: |
| 707 | return (line + 10) / 20 == tpg->src_height / 40; |
| 708 | default: |
| 709 | return 0; |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | /* |
| 714 | * Which color should be used for the given pattern line and X coordinate. |
| 715 | * Note: x is in the range 0 to 2 * tpg->src_width. |
| 716 | */ |
| 717 | static enum tpg_color tpg_get_color(struct tpg_data *tpg, unsigned pat_line, unsigned x) |
| 718 | { |
| 719 | /* Maximum number of bars are TPG_COLOR_MAX - otherwise, the input print code |
| 720 | should be modified */ |
| 721 | static const enum tpg_color bars[3][8] = { |
| 722 | /* Standard ITU-R 75% color bar sequence */ |
| 723 | { TPG_COLOR_CSC_WHITE, TPG_COLOR_75_YELLOW, |
| 724 | TPG_COLOR_75_CYAN, TPG_COLOR_75_GREEN, |
| 725 | TPG_COLOR_75_MAGENTA, TPG_COLOR_75_RED, |
| 726 | TPG_COLOR_75_BLUE, TPG_COLOR_100_BLACK, }, |
| 727 | /* Standard ITU-R 100% color bar sequence */ |
| 728 | { TPG_COLOR_100_WHITE, TPG_COLOR_100_YELLOW, |
| 729 | TPG_COLOR_100_CYAN, TPG_COLOR_100_GREEN, |
| 730 | TPG_COLOR_100_MAGENTA, TPG_COLOR_100_RED, |
| 731 | TPG_COLOR_100_BLUE, TPG_COLOR_100_BLACK, }, |
| 732 | /* Color bar sequence suitable to test CSC */ |
| 733 | { TPG_COLOR_CSC_WHITE, TPG_COLOR_CSC_YELLOW, |
| 734 | TPG_COLOR_CSC_CYAN, TPG_COLOR_CSC_GREEN, |
| 735 | TPG_COLOR_CSC_MAGENTA, TPG_COLOR_CSC_RED, |
| 736 | TPG_COLOR_CSC_BLUE, TPG_COLOR_CSC_BLACK, }, |
| 737 | }; |
| 738 | |
| 739 | switch (tpg->pattern) { |
| 740 | case TPG_PAT_75_COLORBAR: |
| 741 | case TPG_PAT_100_COLORBAR: |
| 742 | case TPG_PAT_CSC_COLORBAR: |
| 743 | return bars[tpg->pattern][((x * 8) / tpg->src_width) % 8]; |
| 744 | case TPG_PAT_100_COLORSQUARES: |
| 745 | return bars[1][(pat_line + (x * 8) / tpg->src_width) % 8]; |
| 746 | case TPG_PAT_100_HCOLORBAR: |
| 747 | return bars[1][pat_line]; |
| 748 | case TPG_PAT_BLACK: |
| 749 | return TPG_COLOR_100_BLACK; |
| 750 | case TPG_PAT_WHITE: |
| 751 | return TPG_COLOR_100_WHITE; |
| 752 | case TPG_PAT_RED: |
| 753 | return TPG_COLOR_100_RED; |
| 754 | case TPG_PAT_GREEN: |
| 755 | return TPG_COLOR_100_GREEN; |
| 756 | case TPG_PAT_BLUE: |
| 757 | return TPG_COLOR_100_BLUE; |
| 758 | case TPG_PAT_CHECKERS_16X16: |
| 759 | return (((x >> 4) & 1) ^ (pat_line & 1)) ? |
| 760 | TPG_COLOR_100_BLACK : TPG_COLOR_100_WHITE; |
| 761 | case TPG_PAT_CHECKERS_1X1: |
| 762 | return ((x & 1) ^ (pat_line & 1)) ? |
| 763 | TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK; |
| 764 | case TPG_PAT_ALTERNATING_HLINES: |
| 765 | return pat_line ? TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK; |
| 766 | case TPG_PAT_ALTERNATING_VLINES: |
| 767 | return (x & 1) ? TPG_COLOR_100_WHITE : TPG_COLOR_100_BLACK; |
| 768 | case TPG_PAT_CROSS_1_PIXEL: |
| 769 | if (pat_line || (x % tpg->src_width) == tpg->src_width / 2) |
| 770 | return TPG_COLOR_100_BLACK; |
| 771 | return TPG_COLOR_100_WHITE; |
| 772 | case TPG_PAT_CROSS_2_PIXELS: |
| 773 | if (pat_line || ((x % tpg->src_width) + 1) / 2 == tpg->src_width / 4) |
| 774 | return TPG_COLOR_100_BLACK; |
| 775 | return TPG_COLOR_100_WHITE; |
| 776 | case TPG_PAT_CROSS_10_PIXELS: |
| 777 | if (pat_line || ((x % tpg->src_width) + 10) / 20 == tpg->src_width / 40) |
| 778 | return TPG_COLOR_100_BLACK; |
| 779 | return TPG_COLOR_100_WHITE; |
| 780 | case TPG_PAT_GRAY_RAMP: |
| 781 | return TPG_COLOR_RAMP + ((x % tpg->src_width) * 256) / tpg->src_width; |
| 782 | default: |
| 783 | return TPG_COLOR_100_RED; |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | /* |
| 788 | * Given the pixel aspect ratio and video aspect ratio calculate the |
| 789 | * coordinates of a centered square and the coordinates of the border of |
| 790 | * the active video area. The coordinates are relative to the source |
| 791 | * frame rectangle. |
| 792 | */ |
| 793 | static void tpg_calculate_square_border(struct tpg_data *tpg) |
| 794 | { |
| 795 | unsigned w = tpg->src_width; |
| 796 | unsigned h = tpg->src_height; |
| 797 | unsigned sq_w, sq_h; |
| 798 | |
| 799 | sq_w = (w * 2 / 5) & ~1; |
| 800 | if (((w - sq_w) / 2) & 1) |
| 801 | sq_w += 2; |
| 802 | sq_h = sq_w; |
| 803 | tpg->square.width = sq_w; |
| 804 | if (tpg->vid_aspect == TPG_VIDEO_ASPECT_16X9_ANAMORPHIC) { |
| 805 | unsigned ana_sq_w = (sq_w / 4) * 3; |
| 806 | |
| 807 | if (((w - ana_sq_w) / 2) & 1) |
| 808 | ana_sq_w += 2; |
| 809 | tpg->square.width = ana_sq_w; |
| 810 | } |
| 811 | tpg->square.left = (w - tpg->square.width) / 2; |
| 812 | if (tpg->pix_aspect == TPG_PIXEL_ASPECT_NTSC) |
| 813 | sq_h = sq_w * 10 / 11; |
| 814 | else if (tpg->pix_aspect == TPG_PIXEL_ASPECT_PAL) |
| 815 | sq_h = sq_w * 59 / 54; |
| 816 | tpg->square.height = sq_h; |
| 817 | tpg->square.top = (h - sq_h) / 2; |
| 818 | tpg->border.left = 0; |
| 819 | tpg->border.width = w; |
| 820 | tpg->border.top = 0; |
| 821 | tpg->border.height = h; |
| 822 | switch (tpg->vid_aspect) { |
| 823 | case TPG_VIDEO_ASPECT_4X3: |
| 824 | if (tpg->pix_aspect) |
| 825 | return; |
| 826 | if (3 * w >= 4 * h) { |
| 827 | tpg->border.width = ((4 * h) / 3) & ~1; |
| 828 | if (((w - tpg->border.width) / 2) & ~1) |
| 829 | tpg->border.width -= 2; |
| 830 | tpg->border.left = (w - tpg->border.width) / 2; |
| 831 | break; |
| 832 | } |
| 833 | tpg->border.height = ((3 * w) / 4) & ~1; |
| 834 | tpg->border.top = (h - tpg->border.height) / 2; |
| 835 | break; |
| 836 | case TPG_VIDEO_ASPECT_14X9_CENTRE: |
| 837 | if (tpg->pix_aspect) { |
| 838 | tpg->border.height = tpg->pix_aspect == TPG_PIXEL_ASPECT_NTSC ? 420 : 506; |
| 839 | tpg->border.top = (h - tpg->border.height) / 2; |
| 840 | break; |
| 841 | } |
| 842 | if (9 * w >= 14 * h) { |
| 843 | tpg->border.width = ((14 * h) / 9) & ~1; |
| 844 | if (((w - tpg->border.width) / 2) & ~1) |
| 845 | tpg->border.width -= 2; |
| 846 | tpg->border.left = (w - tpg->border.width) / 2; |
| 847 | break; |
| 848 | } |
| 849 | tpg->border.height = ((9 * w) / 14) & ~1; |
| 850 | tpg->border.top = (h - tpg->border.height) / 2; |
| 851 | break; |
| 852 | case TPG_VIDEO_ASPECT_16X9_CENTRE: |
| 853 | if (tpg->pix_aspect) { |
| 854 | tpg->border.height = tpg->pix_aspect == TPG_PIXEL_ASPECT_NTSC ? 368 : 442; |
| 855 | tpg->border.top = (h - tpg->border.height) / 2; |
| 856 | break; |
| 857 | } |
| 858 | if (9 * w >= 16 * h) { |
| 859 | tpg->border.width = ((16 * h) / 9) & ~1; |
| 860 | if (((w - tpg->border.width) / 2) & ~1) |
| 861 | tpg->border.width -= 2; |
| 862 | tpg->border.left = (w - tpg->border.width) / 2; |
| 863 | break; |
| 864 | } |
| 865 | tpg->border.height = ((9 * w) / 16) & ~1; |
| 866 | tpg->border.top = (h - tpg->border.height) / 2; |
| 867 | break; |
| 868 | default: |
| 869 | break; |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | static void tpg_precalculate_line(struct tpg_data *tpg) |
| 874 | { |
| 875 | enum tpg_color contrast; |
| 876 | unsigned pat; |
| 877 | unsigned p; |
| 878 | unsigned x; |
| 879 | |
| 880 | switch (tpg->pattern) { |
| 881 | case TPG_PAT_GREEN: |
| 882 | contrast = TPG_COLOR_100_RED; |
| 883 | break; |
| 884 | case TPG_PAT_CSC_COLORBAR: |
| 885 | contrast = TPG_COLOR_CSC_GREEN; |
| 886 | break; |
| 887 | default: |
| 888 | contrast = TPG_COLOR_100_GREEN; |
| 889 | break; |
| 890 | } |
| 891 | |
| 892 | for (pat = 0; pat < tpg_get_pat_lines(tpg); pat++) { |
| 893 | /* Coarse scaling with Bresenham */ |
| 894 | unsigned int_part = tpg->src_width / tpg->scaled_width; |
| 895 | unsigned fract_part = tpg->src_width % tpg->scaled_width; |
| 896 | unsigned src_x = 0; |
| 897 | unsigned error = 0; |
| 898 | |
| 899 | for (x = 0; x < tpg->scaled_width * 2; x += 2) { |
| 900 | unsigned real_x = src_x; |
| 901 | enum tpg_color color1, color2; |
| 902 | u8 pix[TPG_MAX_PLANES][8]; |
| 903 | |
| 904 | real_x = tpg->hflip ? tpg->src_width * 2 - real_x - 2 : real_x; |
| 905 | color1 = tpg_get_color(tpg, pat, real_x); |
| 906 | |
| 907 | src_x += int_part; |
| 908 | error += fract_part; |
| 909 | if (error >= tpg->scaled_width) { |
| 910 | error -= tpg->scaled_width; |
| 911 | src_x++; |
| 912 | } |
| 913 | |
| 914 | real_x = src_x; |
| 915 | real_x = tpg->hflip ? tpg->src_width * 2 - real_x - 2 : real_x; |
| 916 | color2 = tpg_get_color(tpg, pat, real_x); |
| 917 | |
| 918 | src_x += int_part; |
| 919 | error += fract_part; |
| 920 | if (error >= tpg->scaled_width) { |
| 921 | error -= tpg->scaled_width; |
| 922 | src_x++; |
| 923 | } |
| 924 | |
| 925 | gen_twopix(tpg, pix, tpg->hflip ? color2 : color1, 0); |
| 926 | gen_twopix(tpg, pix, tpg->hflip ? color1 : color2, 1); |
| 927 | for (p = 0; p < tpg->planes; p++) { |
| 928 | unsigned twopixsize = tpg->twopixelsize[p]; |
| 929 | u8 *pos = tpg->lines[pat][p] + x * twopixsize / 2; |
| 930 | |
| 931 | memcpy(pos, pix[p], twopixsize); |
| 932 | } |
| 933 | } |
| 934 | } |
| 935 | for (x = 0; x < tpg->scaled_width; x += 2) { |
| 936 | u8 pix[TPG_MAX_PLANES][8]; |
| 937 | |
| 938 | gen_twopix(tpg, pix, contrast, 0); |
| 939 | gen_twopix(tpg, pix, contrast, 1); |
| 940 | for (p = 0; p < tpg->planes; p++) { |
| 941 | unsigned twopixsize = tpg->twopixelsize[p]; |
| 942 | u8 *pos = tpg->contrast_line[p] + x * twopixsize / 2; |
| 943 | |
| 944 | memcpy(pos, pix[p], twopixsize); |
| 945 | } |
| 946 | } |
| 947 | for (x = 0; x < tpg->scaled_width; x += 2) { |
| 948 | u8 pix[TPG_MAX_PLANES][8]; |
| 949 | |
| 950 | gen_twopix(tpg, pix, TPG_COLOR_100_BLACK, 0); |
| 951 | gen_twopix(tpg, pix, TPG_COLOR_100_BLACK, 1); |
| 952 | for (p = 0; p < tpg->planes; p++) { |
| 953 | unsigned twopixsize = tpg->twopixelsize[p]; |
| 954 | u8 *pos = tpg->black_line[p] + x * twopixsize / 2; |
| 955 | |
| 956 | memcpy(pos, pix[p], twopixsize); |
| 957 | } |
| 958 | } |
| 959 | for (x = 0; x < tpg->scaled_width * 2; x += 2) { |
| 960 | u8 pix[TPG_MAX_PLANES][8]; |
| 961 | |
| 962 | gen_twopix(tpg, pix, TPG_COLOR_RANDOM, 0); |
| 963 | gen_twopix(tpg, pix, TPG_COLOR_RANDOM, 1); |
| 964 | for (p = 0; p < tpg->planes; p++) { |
| 965 | unsigned twopixsize = tpg->twopixelsize[p]; |
| 966 | u8 *pos = tpg->random_line[p] + x * twopixsize / 2; |
| 967 | |
| 968 | memcpy(pos, pix[p], twopixsize); |
| 969 | } |
| 970 | } |
| 971 | gen_twopix(tpg, tpg->textbg, TPG_COLOR_TEXTBG, 0); |
| 972 | gen_twopix(tpg, tpg->textbg, TPG_COLOR_TEXTBG, 1); |
| 973 | gen_twopix(tpg, tpg->textfg, TPG_COLOR_TEXTFG, 0); |
| 974 | gen_twopix(tpg, tpg->textfg, TPG_COLOR_TEXTFG, 1); |
| 975 | } |
| 976 | |
| 977 | /* need this to do rgb24 rendering */ |
| 978 | typedef struct { u16 __; u8 _; } __packed x24; |
| 979 | |
| 980 | void tpg_gen_text(struct tpg_data *tpg, u8 *basep[TPG_MAX_PLANES][2], |
| 981 | int y, int x, char *text) |
| 982 | { |
| 983 | int line; |
| 984 | unsigned step = V4L2_FIELD_HAS_T_OR_B(tpg->field) ? 2 : 1; |
| 985 | unsigned div = step; |
| 986 | unsigned first = 0; |
| 987 | unsigned len = strlen(text); |
| 988 | unsigned p; |
| 989 | |
| 990 | if (font8x16 == NULL || basep == NULL) |
| 991 | return; |
| 992 | |
| 993 | /* Checks if it is possible to show string */ |
| 994 | if (y + 16 >= tpg->compose.height || x + 8 >= tpg->compose.width) |
| 995 | return; |
| 996 | |
| 997 | if (len > (tpg->compose.width - x) / 8) |
| 998 | len = (tpg->compose.width - x) / 8; |
| 999 | if (tpg->vflip) |
| 1000 | y = tpg->compose.height - y - 16; |
| 1001 | if (tpg->hflip) |
| 1002 | x = tpg->compose.width - x - 8; |
| 1003 | y += tpg->compose.top; |
| 1004 | x += tpg->compose.left; |
| 1005 | if (tpg->field == V4L2_FIELD_BOTTOM) |
| 1006 | first = 1; |
| 1007 | else if (tpg->field == V4L2_FIELD_SEQ_TB || tpg->field == V4L2_FIELD_SEQ_BT) |
| 1008 | div = 2; |
| 1009 | |
| 1010 | for (p = 0; p < tpg->planes; p++) { |
| 1011 | /* Print stream time */ |
| 1012 | #define PRINTSTR(PIXTYPE) do { \ |
| 1013 | PIXTYPE fg; \ |
| 1014 | PIXTYPE bg; \ |
| 1015 | memcpy(&fg, tpg->textfg[p], sizeof(PIXTYPE)); \ |
| 1016 | memcpy(&bg, tpg->textbg[p], sizeof(PIXTYPE)); \ |
| 1017 | \ |
| 1018 | for (line = first; line < 16; line += step) { \ |
| 1019 | int l = tpg->vflip ? 15 - line : line; \ |
| 1020 | PIXTYPE *pos = (PIXTYPE *)(basep[p][line & 1] + \ |
| 1021 | ((y * step + l) / div) * tpg->bytesperline[p] + \ |
| 1022 | x * sizeof(PIXTYPE)); \ |
| 1023 | unsigned s; \ |
| 1024 | \ |
| 1025 | for (s = 0; s < len; s++) { \ |
| 1026 | u8 chr = font8x16[text[s] * 16 + line]; \ |
| 1027 | \ |
| 1028 | if (tpg->hflip) { \ |
| 1029 | pos[7] = (chr & (0x01 << 7) ? fg : bg); \ |
| 1030 | pos[6] = (chr & (0x01 << 6) ? fg : bg); \ |
| 1031 | pos[5] = (chr & (0x01 << 5) ? fg : bg); \ |
| 1032 | pos[4] = (chr & (0x01 << 4) ? fg : bg); \ |
| 1033 | pos[3] = (chr & (0x01 << 3) ? fg : bg); \ |
| 1034 | pos[2] = (chr & (0x01 << 2) ? fg : bg); \ |
| 1035 | pos[1] = (chr & (0x01 << 1) ? fg : bg); \ |
| 1036 | pos[0] = (chr & (0x01 << 0) ? fg : bg); \ |
| 1037 | } else { \ |
| 1038 | pos[0] = (chr & (0x01 << 7) ? fg : bg); \ |
| 1039 | pos[1] = (chr & (0x01 << 6) ? fg : bg); \ |
| 1040 | pos[2] = (chr & (0x01 << 5) ? fg : bg); \ |
| 1041 | pos[3] = (chr & (0x01 << 4) ? fg : bg); \ |
| 1042 | pos[4] = (chr & (0x01 << 3) ? fg : bg); \ |
| 1043 | pos[5] = (chr & (0x01 << 2) ? fg : bg); \ |
| 1044 | pos[6] = (chr & (0x01 << 1) ? fg : bg); \ |
| 1045 | pos[7] = (chr & (0x01 << 0) ? fg : bg); \ |
| 1046 | } \ |
| 1047 | \ |
| 1048 | pos += tpg->hflip ? -8 : 8; \ |
| 1049 | } \ |
| 1050 | } \ |
| 1051 | } while (0) |
| 1052 | |
| 1053 | switch (tpg->twopixelsize[p]) { |
| 1054 | case 2: |
| 1055 | PRINTSTR(u8); break; |
| 1056 | case 4: |
| 1057 | PRINTSTR(u16); break; |
| 1058 | case 6: |
| 1059 | PRINTSTR(x24); break; |
| 1060 | case 8: |
| 1061 | PRINTSTR(u32); break; |
| 1062 | } |
| 1063 | } |
| 1064 | } |
| 1065 | |
| 1066 | void tpg_update_mv_step(struct tpg_data *tpg) |
| 1067 | { |
| 1068 | int factor = tpg->mv_hor_mode > TPG_MOVE_NONE ? -1 : 1; |
| 1069 | |
| 1070 | if (tpg->hflip) |
| 1071 | factor = -factor; |
| 1072 | switch (tpg->mv_hor_mode) { |
| 1073 | case TPG_MOVE_NEG_FAST: |
| 1074 | case TPG_MOVE_POS_FAST: |
| 1075 | tpg->mv_hor_step = ((tpg->src_width + 319) / 320) * 4; |
| 1076 | break; |
| 1077 | case TPG_MOVE_NEG: |
| 1078 | case TPG_MOVE_POS: |
| 1079 | tpg->mv_hor_step = ((tpg->src_width + 639) / 640) * 4; |
| 1080 | break; |
| 1081 | case TPG_MOVE_NEG_SLOW: |
| 1082 | case TPG_MOVE_POS_SLOW: |
| 1083 | tpg->mv_hor_step = 2; |
| 1084 | break; |
| 1085 | case TPG_MOVE_NONE: |
| 1086 | tpg->mv_hor_step = 0; |
| 1087 | break; |
| 1088 | } |
| 1089 | if (factor < 0) |
| 1090 | tpg->mv_hor_step = tpg->src_width - tpg->mv_hor_step; |
| 1091 | |
| 1092 | factor = tpg->mv_vert_mode > TPG_MOVE_NONE ? -1 : 1; |
| 1093 | switch (tpg->mv_vert_mode) { |
| 1094 | case TPG_MOVE_NEG_FAST: |
| 1095 | case TPG_MOVE_POS_FAST: |
| 1096 | tpg->mv_vert_step = ((tpg->src_width + 319) / 320) * 4; |
| 1097 | break; |
| 1098 | case TPG_MOVE_NEG: |
| 1099 | case TPG_MOVE_POS: |
| 1100 | tpg->mv_vert_step = ((tpg->src_width + 639) / 640) * 4; |
| 1101 | break; |
| 1102 | case TPG_MOVE_NEG_SLOW: |
| 1103 | case TPG_MOVE_POS_SLOW: |
| 1104 | tpg->mv_vert_step = 1; |
| 1105 | break; |
| 1106 | case TPG_MOVE_NONE: |
| 1107 | tpg->mv_vert_step = 0; |
| 1108 | break; |
| 1109 | } |
| 1110 | if (factor < 0) |
| 1111 | tpg->mv_vert_step = tpg->src_height - tpg->mv_vert_step; |
| 1112 | } |
| 1113 | |
| 1114 | /* Map the line number relative to the crop rectangle to a frame line number */ |
| 1115 | static unsigned tpg_calc_frameline(struct tpg_data *tpg, unsigned src_y, |
| 1116 | unsigned field) |
| 1117 | { |
| 1118 | switch (field) { |
| 1119 | case V4L2_FIELD_TOP: |
| 1120 | return tpg->crop.top + src_y * 2; |
| 1121 | case V4L2_FIELD_BOTTOM: |
| 1122 | return tpg->crop.top + src_y * 2 + 1; |
| 1123 | default: |
| 1124 | return src_y + tpg->crop.top; |
| 1125 | } |
| 1126 | } |
| 1127 | |
| 1128 | /* |
| 1129 | * Map the line number relative to the compose rectangle to a destination |
| 1130 | * buffer line number. |
| 1131 | */ |
| 1132 | static unsigned tpg_calc_buffer_line(struct tpg_data *tpg, unsigned y, |
| 1133 | unsigned field) |
| 1134 | { |
| 1135 | y += tpg->compose.top; |
| 1136 | switch (field) { |
| 1137 | case V4L2_FIELD_SEQ_TB: |
| 1138 | if (y & 1) |
| 1139 | return tpg->buf_height / 2 + y / 2; |
| 1140 | return y / 2; |
| 1141 | case V4L2_FIELD_SEQ_BT: |
| 1142 | if (y & 1) |
| 1143 | return y / 2; |
| 1144 | return tpg->buf_height / 2 + y / 2; |
| 1145 | default: |
| 1146 | return y; |
| 1147 | } |
| 1148 | } |
| 1149 | |
| 1150 | static void tpg_recalc(struct tpg_data *tpg) |
| 1151 | { |
| 1152 | if (tpg->recalc_colors) { |
| 1153 | tpg->recalc_colors = false; |
| 1154 | tpg->recalc_lines = true; |
| 1155 | tpg_precalculate_colors(tpg); |
| 1156 | } |
| 1157 | if (tpg->recalc_square_border) { |
| 1158 | tpg->recalc_square_border = false; |
| 1159 | tpg_calculate_square_border(tpg); |
| 1160 | } |
| 1161 | if (tpg->recalc_lines) { |
| 1162 | tpg->recalc_lines = false; |
| 1163 | tpg_precalculate_line(tpg); |
| 1164 | } |
| 1165 | } |
| 1166 | |
| 1167 | void tpg_calc_text_basep(struct tpg_data *tpg, |
| 1168 | u8 *basep[TPG_MAX_PLANES][2], unsigned p, u8 *vbuf) |
| 1169 | { |
| 1170 | unsigned stride = tpg->bytesperline[p]; |
| 1171 | |
| 1172 | tpg_recalc(tpg); |
| 1173 | |
| 1174 | basep[p][0] = vbuf; |
| 1175 | basep[p][1] = vbuf; |
| 1176 | if (tpg->field == V4L2_FIELD_SEQ_TB) |
| 1177 | basep[p][1] += tpg->buf_height * stride / 2; |
| 1178 | else if (tpg->field == V4L2_FIELD_SEQ_BT) |
| 1179 | basep[p][0] += tpg->buf_height * stride / 2; |
| 1180 | } |
| 1181 | |
| 1182 | void tpg_fillbuffer(struct tpg_data *tpg, v4l2_std_id std, unsigned p, u8 *vbuf) |
| 1183 | { |
| 1184 | bool is_tv = std; |
| 1185 | bool is_60hz = is_tv && (std & V4L2_STD_525_60); |
| 1186 | unsigned mv_hor_old = tpg->mv_hor_count % tpg->src_width; |
| 1187 | unsigned mv_hor_new = (tpg->mv_hor_count + tpg->mv_hor_step) % tpg->src_width; |
| 1188 | unsigned mv_vert_old = tpg->mv_vert_count % tpg->src_height; |
| 1189 | unsigned mv_vert_new = (tpg->mv_vert_count + tpg->mv_vert_step) % tpg->src_height; |
| 1190 | unsigned wss_width; |
| 1191 | unsigned f; |
| 1192 | int hmax = (tpg->compose.height * tpg->perc_fill) / 100; |
| 1193 | int h; |
| 1194 | unsigned twopixsize = tpg->twopixelsize[p]; |
| 1195 | unsigned img_width = tpg->compose.width * twopixsize / 2; |
| 1196 | unsigned line_offset; |
| 1197 | unsigned left_pillar_width = 0; |
| 1198 | unsigned right_pillar_start = img_width; |
| 1199 | unsigned stride = tpg->bytesperline[p]; |
| 1200 | unsigned factor = V4L2_FIELD_HAS_T_OR_B(tpg->field) ? 2 : 1; |
| 1201 | u8 *orig_vbuf = vbuf; |
| 1202 | |
| 1203 | /* Coarse scaling with Bresenham */ |
| 1204 | unsigned int_part = (tpg->crop.height / factor) / tpg->compose.height; |
| 1205 | unsigned fract_part = (tpg->crop.height / factor) % tpg->compose.height; |
| 1206 | unsigned src_y = 0; |
| 1207 | unsigned error = 0; |
| 1208 | |
| 1209 | tpg_recalc(tpg); |
| 1210 | |
| 1211 | mv_hor_old = (mv_hor_old * tpg->scaled_width / tpg->src_width) & ~1; |
| 1212 | mv_hor_new = (mv_hor_new * tpg->scaled_width / tpg->src_width) & ~1; |
| 1213 | wss_width = tpg->crop.left < tpg->src_width / 2 ? |
| 1214 | tpg->src_width / 2 - tpg->crop.left : 0; |
| 1215 | if (wss_width > tpg->crop.width) |
| 1216 | wss_width = tpg->crop.width; |
| 1217 | wss_width = wss_width * tpg->scaled_width / tpg->src_width; |
| 1218 | |
| 1219 | vbuf += tpg->compose.left * twopixsize / 2; |
| 1220 | line_offset = tpg->crop.left * tpg->scaled_width / tpg->src_width; |
| 1221 | line_offset = (line_offset & ~1) * twopixsize / 2; |
| 1222 | if (tpg->crop.left < tpg->border.left) { |
| 1223 | left_pillar_width = tpg->border.left - tpg->crop.left; |
| 1224 | if (left_pillar_width > tpg->crop.width) |
| 1225 | left_pillar_width = tpg->crop.width; |
| 1226 | left_pillar_width = (left_pillar_width * tpg->scaled_width) / tpg->src_width; |
| 1227 | left_pillar_width = (left_pillar_width & ~1) * twopixsize / 2; |
| 1228 | } |
| 1229 | if (tpg->crop.left + tpg->crop.width > tpg->border.left + tpg->border.width) { |
| 1230 | right_pillar_start = tpg->border.left + tpg->border.width - tpg->crop.left; |
| 1231 | right_pillar_start = (right_pillar_start * tpg->scaled_width) / tpg->src_width; |
| 1232 | right_pillar_start = (right_pillar_start & ~1) * twopixsize / 2; |
| 1233 | if (right_pillar_start > img_width) |
| 1234 | right_pillar_start = img_width; |
| 1235 | } |
| 1236 | |
| 1237 | f = tpg->field == (is_60hz ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM); |
| 1238 | |
| 1239 | for (h = 0; h < tpg->compose.height; h++) { |
| 1240 | bool even; |
| 1241 | bool fill_blank = false; |
| 1242 | unsigned frame_line; |
| 1243 | unsigned buf_line; |
| 1244 | unsigned pat_line_old; |
| 1245 | unsigned pat_line_new; |
| 1246 | u8 *linestart_older; |
| 1247 | u8 *linestart_newer; |
| 1248 | u8 *linestart_top; |
| 1249 | u8 *linestart_bottom; |
| 1250 | |
| 1251 | frame_line = tpg_calc_frameline(tpg, src_y, tpg->field); |
| 1252 | even = !(frame_line & 1); |
| 1253 | buf_line = tpg_calc_buffer_line(tpg, h, tpg->field); |
| 1254 | src_y += int_part; |
| 1255 | error += fract_part; |
| 1256 | if (error >= tpg->compose.height) { |
| 1257 | error -= tpg->compose.height; |
| 1258 | src_y++; |
| 1259 | } |
| 1260 | |
| 1261 | if (h >= hmax) { |
| 1262 | if (hmax == tpg->compose.height) |
| 1263 | continue; |
| 1264 | if (!tpg->perc_fill_blank) |
| 1265 | continue; |
| 1266 | fill_blank = true; |
| 1267 | } |
| 1268 | |
| 1269 | if (tpg->vflip) |
| 1270 | frame_line = tpg->src_height - frame_line - 1; |
| 1271 | |
| 1272 | if (fill_blank) { |
| 1273 | linestart_older = tpg->contrast_line[p]; |
| 1274 | linestart_newer = tpg->contrast_line[p]; |
| 1275 | } else if (tpg->qual != TPG_QUAL_NOISE && |
| 1276 | (frame_line < tpg->border.top || |
| 1277 | frame_line >= tpg->border.top + tpg->border.height)) { |
| 1278 | linestart_older = tpg->black_line[p]; |
| 1279 | linestart_newer = tpg->black_line[p]; |
| 1280 | } else if (tpg->pattern == TPG_PAT_NOISE || tpg->qual == TPG_QUAL_NOISE) { |
| 1281 | linestart_older = tpg->random_line[p] + |
| 1282 | twopixsize * prandom_u32_max(tpg->src_width / 2); |
| 1283 | linestart_newer = tpg->random_line[p] + |
| 1284 | twopixsize * prandom_u32_max(tpg->src_width / 2); |
| 1285 | } else { |
| 1286 | pat_line_old = tpg_get_pat_line(tpg, |
| 1287 | (frame_line + mv_vert_old) % tpg->src_height); |
| 1288 | pat_line_new = tpg_get_pat_line(tpg, |
| 1289 | (frame_line + mv_vert_new) % tpg->src_height); |
| 1290 | linestart_older = tpg->lines[pat_line_old][p] + |
| 1291 | mv_hor_old * twopixsize / 2; |
| 1292 | linestart_newer = tpg->lines[pat_line_new][p] + |
| 1293 | mv_hor_new * twopixsize / 2; |
| 1294 | linestart_older += line_offset; |
| 1295 | linestart_newer += line_offset; |
| 1296 | } |
| 1297 | if (is_60hz) { |
| 1298 | linestart_top = linestart_newer; |
| 1299 | linestart_bottom = linestart_older; |
| 1300 | } else { |
| 1301 | linestart_top = linestart_older; |
| 1302 | linestart_bottom = linestart_newer; |
| 1303 | } |
| 1304 | |
| 1305 | switch (tpg->field) { |
| 1306 | case V4L2_FIELD_INTERLACED: |
| 1307 | case V4L2_FIELD_INTERLACED_TB: |
| 1308 | case V4L2_FIELD_SEQ_TB: |
| 1309 | case V4L2_FIELD_SEQ_BT: |
| 1310 | if (even) |
| 1311 | memcpy(vbuf + buf_line * stride, linestart_top, img_width); |
| 1312 | else |
| 1313 | memcpy(vbuf + buf_line * stride, linestart_bottom, img_width); |
| 1314 | break; |
| 1315 | case V4L2_FIELD_INTERLACED_BT: |
| 1316 | if (even) |
| 1317 | memcpy(vbuf + buf_line * stride, linestart_bottom, img_width); |
| 1318 | else |
| 1319 | memcpy(vbuf + buf_line * stride, linestart_top, img_width); |
| 1320 | break; |
| 1321 | case V4L2_FIELD_TOP: |
| 1322 | memcpy(vbuf + buf_line * stride, linestart_top, img_width); |
| 1323 | break; |
| 1324 | case V4L2_FIELD_BOTTOM: |
| 1325 | memcpy(vbuf + buf_line * stride, linestart_bottom, img_width); |
| 1326 | break; |
| 1327 | case V4L2_FIELD_NONE: |
| 1328 | default: |
| 1329 | memcpy(vbuf + buf_line * stride, linestart_older, img_width); |
| 1330 | break; |
| 1331 | } |
| 1332 | |
| 1333 | if (is_tv && !is_60hz && frame_line == 0 && wss_width) { |
| 1334 | /* |
| 1335 | * Replace the first half of the top line of a 50 Hz frame |
| 1336 | * with random data to simulate a WSS signal. |
| 1337 | */ |
| 1338 | u8 *wss = tpg->random_line[p] + |
| 1339 | twopixsize * prandom_u32_max(tpg->src_width / 2); |
| 1340 | |
| 1341 | memcpy(vbuf + buf_line * stride, wss, wss_width * twopixsize / 2); |
| 1342 | } |
| 1343 | } |
| 1344 | |
| 1345 | vbuf = orig_vbuf; |
| 1346 | vbuf += tpg->compose.left * twopixsize / 2; |
| 1347 | src_y = 0; |
| 1348 | error = 0; |
| 1349 | for (h = 0; h < tpg->compose.height; h++) { |
| 1350 | unsigned frame_line = tpg_calc_frameline(tpg, src_y, tpg->field); |
| 1351 | unsigned buf_line = tpg_calc_buffer_line(tpg, h, tpg->field); |
| 1352 | const struct v4l2_rect *sq = &tpg->square; |
| 1353 | const struct v4l2_rect *b = &tpg->border; |
| 1354 | const struct v4l2_rect *c = &tpg->crop; |
| 1355 | |
| 1356 | src_y += int_part; |
| 1357 | error += fract_part; |
| 1358 | if (error >= tpg->compose.height) { |
| 1359 | error -= tpg->compose.height; |
| 1360 | src_y++; |
| 1361 | } |
| 1362 | |
| 1363 | if (tpg->show_border && frame_line >= b->top && |
| 1364 | frame_line < b->top + b->height) { |
| 1365 | unsigned bottom = b->top + b->height - 1; |
| 1366 | unsigned left = left_pillar_width; |
| 1367 | unsigned right = right_pillar_start; |
| 1368 | |
| 1369 | if (frame_line == b->top || frame_line == b->top + 1 || |
| 1370 | frame_line == bottom || frame_line == bottom - 1) { |
| 1371 | memcpy(vbuf + buf_line * stride + left, tpg->contrast_line[p], |
| 1372 | right - left); |
| 1373 | } else { |
| 1374 | if (b->left >= c->left && |
| 1375 | b->left < c->left + c->width) |
| 1376 | memcpy(vbuf + buf_line * stride + left, |
| 1377 | tpg->contrast_line[p], twopixsize); |
| 1378 | if (b->left + b->width > c->left && |
| 1379 | b->left + b->width <= c->left + c->width) |
| 1380 | memcpy(vbuf + buf_line * stride + right - twopixsize, |
| 1381 | tpg->contrast_line[p], twopixsize); |
| 1382 | } |
| 1383 | } |
| 1384 | if (tpg->qual != TPG_QUAL_NOISE && frame_line >= b->top && |
| 1385 | frame_line < b->top + b->height) { |
| 1386 | memcpy(vbuf + buf_line * stride, tpg->black_line[p], left_pillar_width); |
| 1387 | memcpy(vbuf + buf_line * stride + right_pillar_start, tpg->black_line[p], |
| 1388 | img_width - right_pillar_start); |
| 1389 | } |
| 1390 | if (tpg->show_square && frame_line >= sq->top && |
| 1391 | frame_line < sq->top + sq->height && |
| 1392 | sq->left < c->left + c->width && |
| 1393 | sq->left + sq->width >= c->left) { |
| 1394 | unsigned left = sq->left; |
| 1395 | unsigned width = sq->width; |
| 1396 | |
| 1397 | if (c->left > left) { |
| 1398 | width -= c->left - left; |
| 1399 | left = c->left; |
| 1400 | } |
| 1401 | if (c->left + c->width < left + width) |
| 1402 | width -= left + width - c->left - c->width; |
| 1403 | left -= c->left; |
| 1404 | left = (left * tpg->scaled_width) / tpg->src_width; |
| 1405 | left = (left & ~1) * twopixsize / 2; |
| 1406 | width = (width * tpg->scaled_width) / tpg->src_width; |
| 1407 | width = (width & ~1) * twopixsize / 2; |
| 1408 | memcpy(vbuf + buf_line * stride + left, tpg->contrast_line[p], width); |
| 1409 | } |
| 1410 | if (tpg->insert_sav) { |
| 1411 | unsigned offset = (tpg->compose.width / 6) * twopixsize; |
| 1412 | u8 *p = vbuf + buf_line * stride + offset; |
| 1413 | unsigned vact = 0, hact = 0; |
| 1414 | |
| 1415 | p[0] = 0xff; |
| 1416 | p[1] = 0; |
| 1417 | p[2] = 0; |
| 1418 | p[3] = 0x80 | (f << 6) | (vact << 5) | (hact << 4) | |
| 1419 | ((hact ^ vact) << 3) | |
| 1420 | ((hact ^ f) << 2) | |
| 1421 | ((f ^ vact) << 1) | |
| 1422 | (hact ^ vact ^ f); |
| 1423 | } |
| 1424 | if (tpg->insert_eav) { |
| 1425 | unsigned offset = (tpg->compose.width / 6) * 2 * twopixsize; |
| 1426 | u8 *p = vbuf + buf_line * stride + offset; |
| 1427 | unsigned vact = 0, hact = 1; |
| 1428 | |
| 1429 | p[0] = 0xff; |
| 1430 | p[1] = 0; |
| 1431 | p[2] = 0; |
| 1432 | p[3] = 0x80 | (f << 6) | (vact << 5) | (hact << 4) | |
| 1433 | ((hact ^ vact) << 3) | |
| 1434 | ((hact ^ f) << 2) | |
| 1435 | ((f ^ vact) << 1) | |
| 1436 | (hact ^ vact ^ f); |
| 1437 | } |
| 1438 | } |
| 1439 | } |