1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright 2020 Toomas Soome 5 * Copyright 2019 OmniOS Community Edition (OmniOSce) Association. 6 * Copyright 2020 RackTop Systems, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #include <sys/cdefs.h> 33 #include <sys/param.h> 34 #include <stand.h> 35 #include <teken.h> 36 #include <gfx_fb.h> 37 #include <sys/font.h> 38 #include <sys/stdint.h> 39 #include <sys/endian.h> 40 #include <pnglite.h> 41 #include <bootstrap.h> 42 #include <lz4.h> 43 #if defined(EFI) 44 #include <efi.h> 45 #include <efilib.h> 46 #else 47 #include <vbe.h> 48 #endif 49 50 /* VGA text mode does use bold font. */ 51 #if !defined(VGA_8X16_FONT) 52 #define VGA_8X16_FONT "/boot/fonts/8x16b.fnt" 53 #endif 54 #if !defined(DEFAULT_8X16_FONT) 55 #define DEFAULT_8X16_FONT "/boot/fonts/8x16.fnt" 56 #endif 57 58 /* 59 * Must be sorted by font size in descending order 60 */ 61 font_list_t fonts = STAILQ_HEAD_INITIALIZER(fonts); 62 63 #define DEFAULT_FONT_DATA font_data_8x16 64 extern vt_font_bitmap_data_t font_data_8x16; 65 teken_gfx_t gfx_state = { 0 }; 66 67 static struct { 68 unsigned char r; /* Red percentage value. */ 69 unsigned char g; /* Green percentage value. */ 70 unsigned char b; /* Blue percentage value. */ 71 } color_def[NCOLORS] = { 72 {0, 0, 0}, /* black */ 73 {50, 0, 0}, /* dark red */ 74 {0, 50, 0}, /* dark green */ 75 {77, 63, 0}, /* dark yellow */ 76 {20, 40, 64}, /* dark blue */ 77 {50, 0, 50}, /* dark magenta */ 78 {0, 50, 50}, /* dark cyan */ 79 {75, 75, 75}, /* light gray */ 80 81 {18, 20, 21}, /* dark gray */ 82 {100, 0, 0}, /* light red */ 83 {0, 100, 0}, /* light green */ 84 {100, 100, 0}, /* light yellow */ 85 {45, 62, 81}, /* light blue */ 86 {100, 0, 100}, /* light magenta */ 87 {0, 100, 100}, /* light cyan */ 88 {100, 100, 100}, /* white */ 89 }; 90 uint32_t cmap[NCMAP]; 91 92 /* 93 * Between console's palette and VGA's one: 94 * - blue and red are swapped (1 <-> 4) 95 * - yellow and cyan are swapped (3 <-> 6) 96 */ 97 const int cons_to_vga_colors[NCOLORS] = { 98 0, 4, 2, 6, 1, 5, 3, 7, 99 8, 12, 10, 14, 9, 13, 11, 15 100 }; 101 102 static const int vga_to_cons_colors[NCOLORS] = { 103 0, 1, 2, 3, 4, 5, 6, 7, 104 8, 9, 10, 11, 12, 13, 14, 15 105 }; 106 107 struct text_pixel *screen_buffer; 108 #if defined(EFI) 109 static EFI_GRAPHICS_OUTPUT_BLT_PIXEL *GlyphBuffer; 110 #else 111 static struct paletteentry *GlyphBuffer; 112 #endif 113 static size_t GlyphBufferSize; 114 115 static bool insert_font(char *, FONT_FLAGS); 116 static int font_set(struct env_var *, int, const void *); 117 static void * allocate_glyphbuffer(uint32_t, uint32_t); 118 static void gfx_fb_cursor_draw(teken_gfx_t *, const teken_pos_t *, bool); 119 120 /* 121 * Initialize gfx framework. 122 */ 123 void 124 gfx_framework_init(void) 125 { 126 /* 127 * Setup font list to have builtin font. 128 */ 129 (void) insert_font(NULL, FONT_BUILTIN); 130 } 131 132 static uint8_t * 133 gfx_get_fb_address(void) 134 { 135 return (ptov((uint32_t)gfx_state.tg_fb.fb_addr)); 136 } 137 138 /* 139 * Utility function to parse gfx mode line strings. 140 */ 141 bool 142 gfx_parse_mode_str(char *str, int *x, int *y, int *depth) 143 { 144 char *p, *end; 145 146 errno = 0; 147 p = str; 148 *x = strtoul(p, &end, 0); 149 if (*x == 0 || errno != 0) 150 return (false); 151 if (*end != 'x') 152 return (false); 153 p = end + 1; 154 *y = strtoul(p, &end, 0); 155 if (*y == 0 || errno != 0) 156 return (false); 157 if (*end != 'x') { 158 *depth = -1; /* auto select */ 159 } else { 160 p = end + 1; 161 *depth = strtoul(p, &end, 0); 162 if (*depth == 0 || errno != 0 || *end != '\0') 163 return (false); 164 } 165 166 return (true); 167 } 168 169 static uint32_t 170 rgb_color_map(uint8_t index, uint32_t rmax, int roffset, 171 uint32_t gmax, int goffset, uint32_t bmax, int boffset) 172 { 173 uint32_t color, code, gray, level; 174 175 if (index < NCOLORS) { 176 #define CF(_f, _i) ((_f ## max * color_def[(_i)]._f / 100) << _f ## offset) 177 return (CF(r, index) | CF(g, index) | CF(b, index)); 178 #undef CF 179 } 180 181 #define CF(_f, _c) ((_f ## max & _c) << _f ## offset) 182 /* 6x6x6 color cube */ 183 if (index > 15 && index < 232) { 184 uint32_t red, green, blue; 185 186 for (red = 0; red < 6; red++) { 187 for (green = 0; green < 6; green++) { 188 for (blue = 0; blue < 6; blue++) { 189 code = 16 + (red * 36) + 190 (green * 6) + blue; 191 if (code != index) 192 continue; 193 red = red ? (red * 40 + 55) : 0; 194 green = green ? (green * 40 + 55) : 0; 195 blue = blue ? (blue * 40 + 55) : 0; 196 color = CF(r, red); 197 color |= CF(g, green); 198 color |= CF(b, blue); 199 return (color); 200 } 201 } 202 } 203 } 204 205 /* colors 232-255 are a grayscale ramp */ 206 for (gray = 0; gray < 24; gray++) { 207 level = (gray * 10) + 8; 208 code = 232 + gray; 209 if (code == index) 210 break; 211 } 212 return (CF(r, level) | CF(g, level) | CF(b, level)); 213 #undef CF 214 } 215 216 /* 217 * Support for color mapping. 218 * For 8, 24 and 32 bit depth, use mask size 8. 219 * 15/16 bit depth needs to use mask size from mode, 220 * or we will lose color information from 32-bit to 15/16 bit translation. 221 */ 222 uint32_t 223 gfx_fb_color_map(uint8_t index) 224 { 225 int rmask, gmask, bmask; 226 int roff, goff, boff, bpp; 227 228 roff = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 229 goff = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 230 boff = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 231 bpp = roundup2(gfx_state.tg_fb.fb_bpp, 8) >> 3; 232 233 if (bpp == 2) 234 rmask = gfx_state.tg_fb.fb_mask_red >> roff; 235 else 236 rmask = 0xff; 237 238 if (bpp == 2) 239 gmask = gfx_state.tg_fb.fb_mask_green >> goff; 240 else 241 gmask = 0xff; 242 243 if (bpp == 2) 244 bmask = gfx_state.tg_fb.fb_mask_blue >> boff; 245 else 246 bmask = 0xff; 247 248 return (rgb_color_map(index, rmask, 16, gmask, 8, bmask, 0)); 249 } 250 251 /* Get indexed color */ 252 static uint8_t 253 rgb_to_color_index(uint8_t r, uint8_t g, uint8_t b) 254 { 255 #if !defined(EFI) 256 uint32_t color, best, dist, k; 257 int diff; 258 259 color = 0; 260 best = NCMAP * NCMAP * NCMAP; 261 for (k = 0; k < NCMAP; k++) { 262 diff = r - pe8[k].Red; 263 dist = diff * diff; 264 diff = g - pe8[k].Green; 265 dist += diff * diff; 266 diff = b - pe8[k].Blue; 267 dist += diff * diff; 268 269 if (dist == 0) 270 break; 271 if (dist < best) { 272 color = k; 273 best = dist; 274 } 275 } 276 if (k == NCMAP) 277 k = color; 278 return (k); 279 #else 280 (void) r; 281 (void) g; 282 (void) b; 283 return (0); 284 #endif 285 } 286 287 int 288 generate_cons_palette(uint32_t *palette, int format, 289 uint32_t rmax, int roffset, uint32_t gmax, int goffset, 290 uint32_t bmax, int boffset) 291 { 292 int i; 293 294 switch (format) { 295 case COLOR_FORMAT_VGA: 296 for (i = 0; i < NCOLORS; i++) 297 palette[i] = cons_to_vga_colors[i]; 298 for (; i < NCMAP; i++) 299 palette[i] = i; 300 break; 301 case COLOR_FORMAT_RGB: 302 for (i = 0; i < NCMAP; i++) 303 palette[i] = rgb_color_map(i, rmax, roffset, 304 gmax, goffset, bmax, boffset); 305 break; 306 default: 307 return (ENODEV); 308 } 309 310 return (0); 311 } 312 313 static void 314 gfx_mem_wr1(uint8_t *base, size_t size, uint32_t o, uint8_t v) 315 { 316 317 if (o >= size) 318 return; 319 *(uint8_t *)(base + o) = v; 320 } 321 322 static void 323 gfx_mem_wr2(uint8_t *base, size_t size, uint32_t o, uint16_t v) 324 { 325 326 if (o >= size) 327 return; 328 *(uint16_t *)(base + o) = v; 329 } 330 331 static void 332 gfx_mem_wr4(uint8_t *base, size_t size, uint32_t o, uint32_t v) 333 { 334 335 if (o >= size) 336 return; 337 *(uint32_t *)(base + o) = v; 338 } 339 340 /* Our GFX Block transfer toolkit. */ 341 static int gfxfb_blt_fill(void *BltBuffer, 342 uint32_t DestinationX, uint32_t DestinationY, 343 uint32_t Width, uint32_t Height) 344 { 345 #if defined(EFI) 346 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *p; 347 #else 348 struct paletteentry *p; 349 #endif 350 uint32_t data, bpp, pitch, y, x; 351 int roff, goff, boff; 352 size_t size; 353 off_t off; 354 uint8_t *destination; 355 356 if (BltBuffer == NULL) 357 return (EINVAL); 358 359 if (DestinationY + Height > gfx_state.tg_fb.fb_height) 360 return (EINVAL); 361 362 if (DestinationX + Width > gfx_state.tg_fb.fb_width) 363 return (EINVAL); 364 365 if (Width == 0 || Height == 0) 366 return (EINVAL); 367 368 p = BltBuffer; 369 roff = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 370 goff = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 371 boff = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 372 373 if (gfx_state.tg_fb.fb_bpp == 8) { 374 data = rgb_to_color_index(p->Red, p->Green, p->Blue); 375 } else { 376 data = (p->Red & 377 (gfx_state.tg_fb.fb_mask_red >> roff)) << roff; 378 data |= (p->Green & 379 (gfx_state.tg_fb.fb_mask_green >> goff)) << goff; 380 data |= (p->Blue & 381 (gfx_state.tg_fb.fb_mask_blue >> boff)) << boff; 382 } 383 384 bpp = roundup2(gfx_state.tg_fb.fb_bpp, 8) >> 3; 385 pitch = gfx_state.tg_fb.fb_stride * bpp; 386 destination = gfx_get_fb_address(); 387 size = gfx_state.tg_fb.fb_size; 388 389 for (y = DestinationY; y < Height + DestinationY; y++) { 390 off = y * pitch + DestinationX * bpp; 391 for (x = 0; x < Width; x++) { 392 switch (bpp) { 393 case 1: 394 gfx_mem_wr1(destination, size, off, 395 (data < NCOLORS) ? 396 cons_to_vga_colors[data] : data); 397 break; 398 case 2: 399 gfx_mem_wr2(destination, size, off, data); 400 break; 401 case 3: 402 gfx_mem_wr1(destination, size, off, 403 (data >> 16) & 0xff); 404 gfx_mem_wr1(destination, size, off + 1, 405 (data >> 8) & 0xff); 406 gfx_mem_wr1(destination, size, off + 2, 407 data & 0xff); 408 break; 409 case 4: 410 gfx_mem_wr4(destination, size, off, data); 411 break; 412 } 413 off += bpp; 414 } 415 } 416 417 return (0); 418 } 419 420 static int 421 gfxfb_blt_video_to_buffer(void *BltBuffer, uint32_t SourceX, uint32_t SourceY, 422 uint32_t DestinationX, uint32_t DestinationY, 423 uint32_t Width, uint32_t Height, uint32_t Delta) 424 { 425 #if defined(EFI) 426 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *p; 427 #else 428 struct paletteentry *p; 429 #endif 430 uint32_t x, sy, dy; 431 uint32_t bpp, pitch, copybytes; 432 off_t off; 433 uint8_t *source, *destination, *buffer, *sb; 434 uint8_t rm, rp, gm, gp, bm, bp; 435 bool bgra; 436 437 if (BltBuffer == NULL) 438 return (EINVAL); 439 440 if (SourceY + Height > 441 gfx_state.tg_fb.fb_height) 442 return (EINVAL); 443 444 if (SourceX + Width > gfx_state.tg_fb.fb_width) 445 return (EINVAL); 446 447 if (Width == 0 || Height == 0) 448 return (EINVAL); 449 450 if (Delta == 0) 451 Delta = Width * sizeof (*p); 452 453 bpp = roundup2(gfx_state.tg_fb.fb_bpp, 8) >> 3; 454 pitch = gfx_state.tg_fb.fb_stride * bpp; 455 456 copybytes = Width * bpp; 457 458 rp = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 459 gp = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 460 bp = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 461 rm = gfx_state.tg_fb.fb_mask_red >> rp; 462 gm = gfx_state.tg_fb.fb_mask_green >> gp; 463 bm = gfx_state.tg_fb.fb_mask_blue >> bp; 464 465 /* If FB pixel format is BGRA, we can use direct copy. */ 466 bgra = bpp == 4 && 467 ffs(rm) - 1 == 8 && rp == 16 && 468 ffs(gm) - 1 == 8 && gp == 8 && 469 ffs(bm) - 1 == 8 && bp == 0; 470 471 if (bgra) { 472 buffer = NULL; 473 } else { 474 buffer = malloc(copybytes); 475 if (buffer == NULL) 476 return (ENOMEM); 477 } 478 479 for (sy = SourceY, dy = DestinationY; dy < Height + DestinationY; 480 sy++, dy++) { 481 off = sy * pitch + SourceX * bpp; 482 source = gfx_get_fb_address() + off; 483 484 if (bgra) { 485 destination = (uint8_t *)BltBuffer + dy * Delta + 486 DestinationX * sizeof (*p); 487 } else { 488 destination = buffer; 489 } 490 491 bcopy(source, destination, copybytes); 492 493 if (!bgra) { 494 for (x = 0; x < Width; x++) { 495 uint32_t c = 0; 496 497 p = (void *)((uint8_t *)BltBuffer + 498 dy * Delta + 499 (DestinationX + x) * sizeof (*p)); 500 sb = buffer + x * bpp; 501 switch (bpp) { 502 case 1: 503 c = *sb; 504 break; 505 case 2: 506 c = *(uint16_t *)sb; 507 break; 508 case 3: 509 c = sb[0] << 16 | sb[1] << 8 | sb[2]; 510 break; 511 case 4: 512 c = *(uint32_t *)sb; 513 break; 514 } 515 516 if (bpp == 1) { 517 *(uint32_t *)p = gfx_fb_color_map( 518 (c < 16) ? 519 vga_to_cons_colors[c] : c); 520 } else { 521 p->Red = (c >> rp) & rm; 522 p->Green = (c >> gp) & gm; 523 p->Blue = (c >> bp) & bm; 524 p->Reserved = 0; 525 } 526 } 527 } 528 } 529 530 free(buffer); 531 return (0); 532 } 533 534 static int 535 gfxfb_blt_buffer_to_video(void *BltBuffer, uint32_t SourceX, uint32_t SourceY, 536 uint32_t DestinationX, uint32_t DestinationY, 537 uint32_t Width, uint32_t Height, uint32_t Delta) 538 { 539 #if defined(EFI) 540 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *p; 541 #else 542 struct paletteentry *p; 543 #endif 544 uint32_t x, sy, dy; 545 uint32_t bpp, pitch, copybytes; 546 off_t off; 547 uint8_t *source, *destination, *buffer; 548 uint8_t rm, rp, gm, gp, bm, bp; 549 bool bgra; 550 551 if (BltBuffer == NULL) 552 return (EINVAL); 553 554 if (DestinationY + Height > 555 gfx_state.tg_fb.fb_height) 556 return (EINVAL); 557 558 if (DestinationX + Width > gfx_state.tg_fb.fb_width) 559 return (EINVAL); 560 561 if (Width == 0 || Height == 0) 562 return (EINVAL); 563 564 if (Delta == 0) 565 Delta = Width * sizeof (*p); 566 567 bpp = roundup2(gfx_state.tg_fb.fb_bpp, 8) >> 3; 568 pitch = gfx_state.tg_fb.fb_stride * bpp; 569 570 copybytes = Width * bpp; 571 572 rp = ffs(gfx_state.tg_fb.fb_mask_red) - 1; 573 gp = ffs(gfx_state.tg_fb.fb_mask_green) - 1; 574 bp = ffs(gfx_state.tg_fb.fb_mask_blue) - 1; 575 rm = gfx_state.tg_fb.fb_mask_red >> rp; 576 gm = gfx_state.tg_fb.fb_mask_green >> gp; 577 bm = gfx_state.tg_fb.fb_mask_blue >> bp; 578 579 /* If FB pixel format is BGRA, we can use direct copy. */ 580 bgra = bpp == 4 && 581 ffs(rm) - 1 == 8 && rp == 16 && 582 ffs(gm) - 1 == 8 && gp == 8 && 583 ffs(bm) - 1 == 8 && bp == 0; 584 585 if (bgra) { 586 buffer = NULL; 587 } else { 588 buffer = malloc(copybytes); 589 if (buffer == NULL) 590 return (ENOMEM); 591 } 592 for (sy = SourceY, dy = DestinationY; sy < Height + SourceY; 593 sy++, dy++) { 594 off = dy * pitch + DestinationX * bpp; 595 destination = gfx_get_fb_address() + off; 596 597 if (bgra) { 598 source = (uint8_t *)BltBuffer + sy * Delta + 599 SourceX * sizeof (*p); 600 } else { 601 for (x = 0; x < Width; x++) { 602 uint32_t c; 603 604 p = (void *)((uint8_t *)BltBuffer + 605 sy * Delta + 606 (SourceX + x) * sizeof (*p)); 607 if (bpp == 1) { 608 c = rgb_to_color_index(p->Red, 609 p->Green, p->Blue); 610 } else { 611 c = (p->Red & rm) << rp | 612 (p->Green & gm) << gp | 613 (p->Blue & bm) << bp; 614 } 615 off = x * bpp; 616 switch (bpp) { 617 case 1: 618 gfx_mem_wr1(buffer, copybytes, 619 off, (c < 16) ? 620 cons_to_vga_colors[c] : c); 621 break; 622 case 2: 623 gfx_mem_wr2(buffer, copybytes, 624 off, c); 625 break; 626 case 3: 627 gfx_mem_wr1(buffer, copybytes, 628 off, (c >> 16) & 0xff); 629 gfx_mem_wr1(buffer, copybytes, 630 off + 1, (c >> 8) & 0xff); 631 gfx_mem_wr1(buffer, copybytes, 632 off + 2, c & 0xff); 633 break; 634 case 4: 635 gfx_mem_wr4(buffer, copybytes, 636 x * bpp, c); 637 break; 638 } 639 } 640 source = buffer; 641 } 642 643 bcopy(source, destination, copybytes); 644 } 645 646 free(buffer); 647 return (0); 648 } 649 650 static int 651 gfxfb_blt_video_to_video(uint32_t SourceX, uint32_t SourceY, 652 uint32_t DestinationX, uint32_t DestinationY, 653 uint32_t Width, uint32_t Height) 654 { 655 uint32_t bpp, copybytes; 656 int pitch; 657 uint8_t *source, *destination; 658 off_t off; 659 660 if (SourceY + Height > 661 gfx_state.tg_fb.fb_height) 662 return (EINVAL); 663 664 if (SourceX + Width > gfx_state.tg_fb.fb_width) 665 return (EINVAL); 666 667 if (DestinationY + Height > 668 gfx_state.tg_fb.fb_height) 669 return (EINVAL); 670 671 if (DestinationX + Width > gfx_state.tg_fb.fb_width) 672 return (EINVAL); 673 674 if (Width == 0 || Height == 0) 675 return (EINVAL); 676 677 bpp = roundup2(gfx_state.tg_fb.fb_bpp, 8) >> 3; 678 pitch = gfx_state.tg_fb.fb_stride * bpp; 679 680 copybytes = Width * bpp; 681 682 off = SourceY * pitch + SourceX * bpp; 683 source = gfx_get_fb_address() + off; 684 off = DestinationY * pitch + DestinationX * bpp; 685 destination = gfx_get_fb_address() + off; 686 687 if ((uintptr_t)destination > (uintptr_t)source) { 688 source += Height * pitch; 689 destination += Height * pitch; 690 pitch = -pitch; 691 } 692 693 while (Height-- > 0) { 694 bcopy(source, destination, copybytes); 695 source += pitch; 696 destination += pitch; 697 } 698 699 return (0); 700 } 701 702 int 703 gfxfb_blt(void *BltBuffer, GFXFB_BLT_OPERATION BltOperation, 704 uint32_t SourceX, uint32_t SourceY, 705 uint32_t DestinationX, uint32_t DestinationY, 706 uint32_t Width, uint32_t Height, uint32_t Delta) 707 { 708 int rv; 709 #if defined(EFI) 710 EFI_STATUS status; 711 EFI_GRAPHICS_OUTPUT *gop = gfx_state.tg_private; 712 713 if (gop != NULL && (gop->Mode->Info->PixelFormat == PixelBltOnly || 714 gfx_state.tg_fb.fb_addr == 0)) { 715 switch (BltOperation) { 716 case GfxFbBltVideoFill: 717 status = gop->Blt(gop, BltBuffer, EfiBltVideoFill, 718 SourceX, SourceY, DestinationX, DestinationY, 719 Width, Height, Delta); 720 break; 721 722 case GfxFbBltVideoToBltBuffer: 723 status = gop->Blt(gop, BltBuffer, 724 EfiBltVideoToBltBuffer, 725 SourceX, SourceY, DestinationX, DestinationY, 726 Width, Height, Delta); 727 break; 728 729 case GfxFbBltBufferToVideo: 730 status = gop->Blt(gop, BltBuffer, EfiBltBufferToVideo, 731 SourceX, SourceY, DestinationX, DestinationY, 732 Width, Height, Delta); 733 break; 734 735 case GfxFbBltVideoToVideo: 736 status = gop->Blt(gop, BltBuffer, EfiBltVideoToVideo, 737 SourceX, SourceY, DestinationX, DestinationY, 738 Width, Height, Delta); 739 break; 740 741 default: 742 status = EFI_INVALID_PARAMETER; 743 break; 744 } 745 746 switch (status) { 747 case EFI_SUCCESS: 748 rv = 0; 749 break; 750 751 case EFI_INVALID_PARAMETER: 752 rv = EINVAL; 753 break; 754 755 case EFI_DEVICE_ERROR: 756 default: 757 rv = EIO; 758 break; 759 } 760 761 return (rv); 762 } 763 #endif 764 765 switch (BltOperation) { 766 case GfxFbBltVideoFill: 767 rv = gfxfb_blt_fill(BltBuffer, DestinationX, DestinationY, 768 Width, Height); 769 break; 770 771 case GfxFbBltVideoToBltBuffer: 772 rv = gfxfb_blt_video_to_buffer(BltBuffer, SourceX, SourceY, 773 DestinationX, DestinationY, Width, Height, Delta); 774 break; 775 776 case GfxFbBltBufferToVideo: 777 rv = gfxfb_blt_buffer_to_video(BltBuffer, SourceX, SourceY, 778 DestinationX, DestinationY, Width, Height, Delta); 779 break; 780 781 case GfxFbBltVideoToVideo: 782 rv = gfxfb_blt_video_to_video(SourceX, SourceY, 783 DestinationX, DestinationY, Width, Height); 784 break; 785 786 default: 787 rv = EINVAL; 788 break; 789 } 790 return (rv); 791 } 792 793 void 794 gfx_bitblt_bitmap(teken_gfx_t *state, const uint8_t *glyph, 795 const teken_attr_t *a, uint32_t alpha, bool cursor) 796 { 797 uint32_t width, height; 798 uint32_t fgc, bgc, bpl, cc, o; 799 int bpp, bit, byte; 800 bool invert = false; 801 802 bpp = 4; /* We only generate BGRA */ 803 width = state->tg_font.vf_width; 804 height = state->tg_font.vf_height; 805 bpl = (width + 7) / 8; /* Bytes per source line. */ 806 807 fgc = a->ta_fgcolor; 808 bgc = a->ta_bgcolor; 809 if (a->ta_format & TF_BOLD) 810 fgc |= TC_LIGHT; 811 if (a->ta_format & TF_BLINK) 812 bgc |= TC_LIGHT; 813 814 fgc = gfx_fb_color_map(fgc); 815 bgc = gfx_fb_color_map(bgc); 816 817 if (a->ta_format & TF_REVERSE) 818 invert = !invert; 819 if (cursor) 820 invert = !invert; 821 if (invert) { 822 uint32_t tmp; 823 824 tmp = fgc; 825 fgc = bgc; 826 bgc = tmp; 827 } 828 829 alpha = alpha << 24; 830 fgc |= alpha; 831 bgc |= alpha; 832 833 for (uint32_t y = 0; y < height; y++) { 834 for (uint32_t x = 0; x < width; x++) { 835 byte = y * bpl + x / 8; 836 bit = 0x80 >> (x % 8); 837 o = y * width * bpp + x * bpp; 838 cc = glyph[byte] & bit ? fgc : bgc; 839 840 gfx_mem_wr4(state->tg_glyph, 841 state->tg_glyph_size, o, cc); 842 } 843 } 844 } 845 846 /* 847 * Draw prepared glyph on terminal point p. 848 */ 849 static void 850 gfx_fb_printchar(teken_gfx_t *state, const teken_pos_t *p) 851 { 852 unsigned x, y, width, height; 853 854 width = state->tg_font.vf_width; 855 height = state->tg_font.vf_height; 856 x = state->tg_origin.tp_col + p->tp_col * width; 857 y = state->tg_origin.tp_row + p->tp_row * height; 858 859 gfx_fb_cons_display(x, y, width, height, state->tg_glyph); 860 } 861 862 /* 863 * Store char with its attribute to buffer and put it on screen. 864 */ 865 void 866 gfx_fb_putchar(void *arg, const teken_pos_t *p, teken_char_t c, 867 const teken_attr_t *a) 868 { 869 teken_gfx_t *state = arg; 870 const uint8_t *glyph; 871 int idx; 872 873 idx = p->tp_col + p->tp_row * state->tg_tp.tp_col; 874 if (idx >= state->tg_tp.tp_col * state->tg_tp.tp_row) 875 return; 876 877 /* remove the cursor */ 878 if (state->tg_cursor_visible) 879 gfx_fb_cursor_draw(state, &state->tg_cursor, false); 880 881 screen_buffer[idx].c = c; 882 screen_buffer[idx].a = *a; 883 884 glyph = font_lookup(&state->tg_font, c, a); 885 gfx_bitblt_bitmap(state, glyph, a, 0xff, false); 886 gfx_fb_printchar(state, p); 887 888 /* display the cursor */ 889 if (state->tg_cursor_visible) { 890 const teken_pos_t *c; 891 892 c = teken_get_cursor(&state->tg_teken); 893 gfx_fb_cursor_draw(state, c, true); 894 } 895 } 896 897 void 898 gfx_fb_fill(void *arg, const teken_rect_t *r, teken_char_t c, 899 const teken_attr_t *a) 900 { 901 teken_gfx_t *state = arg; 902 const uint8_t *glyph; 903 teken_pos_t p; 904 struct text_pixel *row; 905 906 /* remove the cursor */ 907 if (state->tg_cursor_visible) 908 gfx_fb_cursor_draw(state, &state->tg_cursor, false); 909 910 glyph = font_lookup(&state->tg_font, c, a); 911 gfx_bitblt_bitmap(state, glyph, a, 0xff, false); 912 913 for (p.tp_row = r->tr_begin.tp_row; p.tp_row < r->tr_end.tp_row; 914 p.tp_row++) { 915 row = &screen_buffer[p.tp_row * state->tg_tp.tp_col]; 916 for (p.tp_col = r->tr_begin.tp_col; 917 p.tp_col < r->tr_end.tp_col; p.tp_col++) { 918 row[p.tp_col].c = c; 919 row[p.tp_col].a = *a; 920 gfx_fb_printchar(state, &p); 921 } 922 } 923 924 /* display the cursor */ 925 if (state->tg_cursor_visible) { 926 const teken_pos_t *c; 927 928 c = teken_get_cursor(&state->tg_teken); 929 gfx_fb_cursor_draw(state, c, true); 930 } 931 } 932 933 static void 934 gfx_fb_cursor_draw(teken_gfx_t *state, const teken_pos_t *p, bool on) 935 { 936 const uint8_t *glyph; 937 int idx; 938 939 idx = p->tp_col + p->tp_row * state->tg_tp.tp_col; 940 if (idx >= state->tg_tp.tp_col * state->tg_tp.tp_row) 941 return; 942 943 glyph = font_lookup(&state->tg_font, screen_buffer[idx].c, 944 &screen_buffer[idx].a); 945 gfx_bitblt_bitmap(state, glyph, &screen_buffer[idx].a, 0xff, on); 946 gfx_fb_printchar(state, p); 947 state->tg_cursor = *p; 948 } 949 950 void 951 gfx_fb_cursor(void *arg, const teken_pos_t *p) 952 { 953 teken_gfx_t *state = arg; 954 #if defined(EFI) 955 EFI_TPL tpl; 956 957 tpl = BS->RaiseTPL(TPL_NOTIFY); 958 #endif 959 960 /* Switch cursor off in old location and back on in new. */ 961 if (state->tg_cursor_visible) { 962 gfx_fb_cursor_draw(state, &state->tg_cursor, false); 963 gfx_fb_cursor_draw(state, p, true); 964 } 965 #if defined(EFI) 966 BS->RestoreTPL(tpl); 967 #endif 968 } 969 970 void 971 gfx_fb_param(void *arg, int cmd, unsigned int value) 972 { 973 teken_gfx_t *state = arg; 974 const teken_pos_t *c; 975 976 switch (cmd) { 977 case TP_SETLOCALCURSOR: 978 /* 979 * 0 means normal (usually block), 1 means hidden, and 980 * 2 means blinking (always block) for compatibility with 981 * syscons. We don't support any changes except hiding, 982 * so must map 2 to 0. 983 */ 984 value = (value == 1) ? 0 : 1; 985 /* FALLTHROUGH */ 986 case TP_SHOWCURSOR: 987 c = teken_get_cursor(&state->tg_teken); 988 gfx_fb_cursor_draw(state, c, true); 989 if (value != 0) 990 state->tg_cursor_visible = true; 991 else 992 state->tg_cursor_visible = false; 993 break; 994 default: 995 /* Not yet implemented */ 996 break; 997 } 998 } 999 1000 bool 1001 is_same_pixel(struct text_pixel *px1, struct text_pixel *px2) 1002 { 1003 if (px1->c != px2->c) 1004 return (false); 1005 1006 /* Is there image stored? */ 1007 if ((px1->a.ta_format & TF_IMAGE) || 1008 (px2->a.ta_format & TF_IMAGE)) 1009 return (false); 1010 1011 if (px1->a.ta_format != px2->a.ta_format) 1012 return (false); 1013 if (px1->a.ta_fgcolor != px2->a.ta_fgcolor) 1014 return (false); 1015 if (px1->a.ta_bgcolor != px2->a.ta_bgcolor) 1016 return (false); 1017 1018 return (true); 1019 } 1020 1021 static void 1022 gfx_fb_copy_area(teken_gfx_t *state, const teken_rect_t *s, 1023 const teken_pos_t *d) 1024 { 1025 uint32_t sx, sy, dx, dy, width, height; 1026 1027 width = state->tg_font.vf_width; 1028 height = state->tg_font.vf_height; 1029 1030 sx = state->tg_origin.tp_col + s->tr_begin.tp_col * width; 1031 sy = state->tg_origin.tp_row + s->tr_begin.tp_row * height; 1032 dx = state->tg_origin.tp_col + d->tp_col * width; 1033 dy = state->tg_origin.tp_row + d->tp_row * height; 1034 1035 width *= (s->tr_end.tp_col - s->tr_begin.tp_col + 1); 1036 1037 (void) gfxfb_blt(NULL, GfxFbBltVideoToVideo, sx, sy, dx, dy, 1038 width, height, 0); 1039 } 1040 1041 static void 1042 gfx_fb_copy_line(teken_gfx_t *state, int ncol, teken_pos_t *s, teken_pos_t *d) 1043 { 1044 teken_rect_t sr; 1045 teken_pos_t dp; 1046 unsigned soffset, doffset; 1047 bool mark = false; 1048 int x; 1049 1050 soffset = s->tp_col + s->tp_row * state->tg_tp.tp_col; 1051 doffset = d->tp_col + d->tp_row * state->tg_tp.tp_col; 1052 1053 for (x = 0; x < ncol; x++) { 1054 if (is_same_pixel(&screen_buffer[soffset + x], 1055 &screen_buffer[doffset + x])) { 1056 if (mark) { 1057 gfx_fb_copy_area(state, &sr, &dp); 1058 mark = false; 1059 } 1060 } else { 1061 screen_buffer[doffset + x] = screen_buffer[soffset + x]; 1062 if (mark) { 1063 /* update end point */ 1064 sr.tr_end.tp_col = s->tp_col + x;; 1065 } else { 1066 /* set up new rectangle */ 1067 mark = true; 1068 sr.tr_begin.tp_col = s->tp_col + x; 1069 sr.tr_begin.tp_row = s->tp_row; 1070 sr.tr_end.tp_col = s->tp_col + x; 1071 sr.tr_end.tp_row = s->tp_row; 1072 dp.tp_col = d->tp_col + x; 1073 dp.tp_row = d->tp_row; 1074 } 1075 } 1076 } 1077 if (mark) { 1078 gfx_fb_copy_area(state, &sr, &dp); 1079 } 1080 } 1081 1082 void 1083 gfx_fb_copy(void *arg, const teken_rect_t *r, const teken_pos_t *p) 1084 { 1085 teken_gfx_t *state = arg; 1086 unsigned doffset, soffset; 1087 teken_pos_t d, s; 1088 int nrow, ncol, y; /* Has to be signed - >= 0 comparison */ 1089 1090 /* 1091 * Copying is a little tricky. We must make sure we do it in 1092 * correct order, to make sure we don't overwrite our own data. 1093 */ 1094 1095 nrow = r->tr_end.tp_row - r->tr_begin.tp_row; 1096 ncol = r->tr_end.tp_col - r->tr_begin.tp_col; 1097 1098 if (p->tp_row + nrow > state->tg_tp.tp_row || 1099 p->tp_col + ncol > state->tg_tp.tp_col) 1100 return; 1101 1102 soffset = r->tr_begin.tp_col + r->tr_begin.tp_row * state->tg_tp.tp_col; 1103 doffset = p->tp_col + p->tp_row * state->tg_tp.tp_col; 1104 1105 /* remove the cursor */ 1106 if (state->tg_cursor_visible) 1107 gfx_fb_cursor_draw(state, &state->tg_cursor, false); 1108 1109 /* 1110 * Copy line by line. 1111 */ 1112 if (doffset <= soffset) { 1113 s = r->tr_begin; 1114 d = *p; 1115 for (y = 0; y < nrow; y++) { 1116 s.tp_row = r->tr_begin.tp_row + y; 1117 d.tp_row = p->tp_row + y; 1118 1119 gfx_fb_copy_line(state, ncol, &s, &d); 1120 } 1121 } else { 1122 for (y = nrow - 1; y >= 0; y--) { 1123 s.tp_row = r->tr_begin.tp_row + y; 1124 d.tp_row = p->tp_row + y; 1125 1126 gfx_fb_copy_line(state, ncol, &s, &d); 1127 } 1128 } 1129 1130 /* display the cursor */ 1131 if (state->tg_cursor_visible) { 1132 const teken_pos_t *c; 1133 1134 c = teken_get_cursor(&state->tg_teken); 1135 gfx_fb_cursor_draw(state, c, true); 1136 } 1137 } 1138 1139 /* 1140 * Implements alpha blending for RGBA data, could use pixels for arguments, 1141 * but byte stream seems more generic. 1142 * The generic alpha blending is: 1143 * blend = alpha * fg + (1.0 - alpha) * bg. 1144 * Since our alpha is not from range [0..1], we scale appropriately. 1145 */ 1146 static uint8_t 1147 alpha_blend(uint8_t fg, uint8_t bg, uint8_t alpha) 1148 { 1149 uint16_t blend, h, l; 1150 1151 /* trivial corner cases */ 1152 if (alpha == 0) 1153 return (bg); 1154 if (alpha == 0xFF) 1155 return (fg); 1156 blend = (alpha * fg + (0xFF - alpha) * bg); 1157 /* Division by 0xFF */ 1158 h = blend >> 8; 1159 l = blend & 0xFF; 1160 if (h + l >= 0xFF) 1161 h++; 1162 return (h); 1163 } 1164 1165 /* 1166 * Implements alpha blending for RGBA data, could use pixels for arguments, 1167 * but byte stream seems more generic. 1168 * The generic alpha blending is: 1169 * blend = alpha * fg + (1.0 - alpha) * bg. 1170 * Since our alpha is not from range [0..1], we scale appropriately. 1171 */ 1172 static void 1173 bitmap_cpy(void *dst, void *src, uint32_t size) 1174 { 1175 #if defined(EFI) 1176 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *ps, *pd; 1177 #else 1178 struct paletteentry *ps, *pd; 1179 #endif 1180 uint32_t i; 1181 uint8_t a; 1182 1183 ps = src; 1184 pd = dst; 1185 1186 /* 1187 * we only implement alpha blending for depth 32. 1188 */ 1189 for (i = 0; i < size; i ++) { 1190 a = ps[i].Reserved; 1191 pd[i].Red = alpha_blend(ps[i].Red, pd[i].Red, a); 1192 pd[i].Green = alpha_blend(ps[i].Green, pd[i].Green, a); 1193 pd[i].Blue = alpha_blend(ps[i].Blue, pd[i].Blue, a); 1194 pd[i].Reserved = a; 1195 } 1196 } 1197 1198 static void * 1199 allocate_glyphbuffer(uint32_t width, uint32_t height) 1200 { 1201 size_t size; 1202 1203 size = sizeof (*GlyphBuffer) * width * height; 1204 if (size != GlyphBufferSize) { 1205 free(GlyphBuffer); 1206 GlyphBuffer = malloc(size); 1207 if (GlyphBuffer == NULL) 1208 return (NULL); 1209 GlyphBufferSize = size; 1210 } 1211 return (GlyphBuffer); 1212 } 1213 1214 void 1215 gfx_fb_cons_display(uint32_t x, uint32_t y, uint32_t width, uint32_t height, 1216 void *data) 1217 { 1218 #if defined(EFI) 1219 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *buf; 1220 #else 1221 struct paletteentry *buf; 1222 #endif 1223 size_t size; 1224 1225 size = width * height * sizeof(*buf); 1226 1227 /* 1228 * Common data to display is glyph, use preallocated 1229 * glyph buffer. 1230 */ 1231 if (gfx_state.tg_glyph_size != GlyphBufferSize) 1232 (void) allocate_glyphbuffer(width, height); 1233 1234 if (size == GlyphBufferSize) 1235 buf = GlyphBuffer; 1236 else 1237 buf = malloc(size); 1238 if (buf == NULL) 1239 return; 1240 1241 if (gfxfb_blt(buf, GfxFbBltVideoToBltBuffer, x, y, 0, 0, 1242 width, height, 0) == 0) { 1243 bitmap_cpy(buf, data, width * height); 1244 (void) gfxfb_blt(buf, GfxFbBltBufferToVideo, 0, 0, x, y, 1245 width, height, 0); 1246 } 1247 if (buf != GlyphBuffer) 1248 free(buf); 1249 } 1250 1251 /* 1252 * Public graphics primitives. 1253 */ 1254 1255 static int 1256 isqrt(int num) 1257 { 1258 int res = 0; 1259 int bit = 1 << 30; 1260 1261 /* "bit" starts at the highest power of four <= the argument. */ 1262 while (bit > num) 1263 bit >>= 2; 1264 1265 while (bit != 0) { 1266 if (num >= res + bit) { 1267 num -= res + bit; 1268 res = (res >> 1) + bit; 1269 } else { 1270 res >>= 1; 1271 } 1272 bit >>= 2; 1273 } 1274 return (res); 1275 } 1276 1277 /* set pixel in framebuffer using gfx coordinates */ 1278 void 1279 gfx_fb_setpixel(uint32_t x, uint32_t y) 1280 { 1281 uint32_t c; 1282 const teken_attr_t *ap; 1283 1284 if (gfx_state.tg_fb_type == FB_TEXT) 1285 return; 1286 1287 ap = teken_get_curattr(&gfx_state.tg_teken); 1288 if (ap->ta_format & TF_REVERSE) { 1289 c = ap->ta_bgcolor; 1290 if (ap->ta_format & TF_BLINK) 1291 c |= TC_LIGHT; 1292 } else { 1293 c = ap->ta_fgcolor; 1294 if (ap->ta_format & TF_BOLD) 1295 c |= TC_LIGHT; 1296 } 1297 1298 c = gfx_fb_color_map(c); 1299 1300 if (x >= gfx_state.tg_fb.fb_width || 1301 y >= gfx_state.tg_fb.fb_height) 1302 return; 1303 1304 gfxfb_blt(&c, GfxFbBltVideoFill, 0, 0, x, y, 1, 1, 0); 1305 } 1306 1307 /* 1308 * draw rectangle in framebuffer using gfx coordinates. 1309 * The function is borrowed from vt_fb.c 1310 */ 1311 void 1312 gfx_fb_drawrect(uint32_t x1, uint32_t y1, uint32_t x2, uint32_t y2, 1313 uint32_t fill) 1314 { 1315 uint32_t x, y; 1316 1317 if (gfx_state.tg_fb_type == FB_TEXT) 1318 return; 1319 1320 for (y = y1; y <= y2; y++) { 1321 if (fill || (y == y1) || (y == y2)) { 1322 for (x = x1; x <= x2; x++) 1323 gfx_fb_setpixel(x, y); 1324 } else { 1325 gfx_fb_setpixel(x1, y); 1326 gfx_fb_setpixel(x2, y); 1327 } 1328 } 1329 } 1330 1331 void 1332 gfx_fb_line(uint32_t x0, uint32_t y0, uint32_t x1, uint32_t y1, uint32_t wd) 1333 { 1334 int dx, sx, dy, sy; 1335 int err, e2, x2, y2, ed, width; 1336 1337 if (gfx_state.tg_fb_type == FB_TEXT) 1338 return; 1339 1340 width = wd; 1341 sx = x0 < x1? 1 : -1; 1342 sy = y0 < y1? 1 : -1; 1343 dx = x1 > x0? x1 - x0 : x0 - x1; 1344 dy = y1 > y0? y1 - y0 : y0 - y1; 1345 err = dx + dy; 1346 ed = dx + dy == 0 ? 1: isqrt(dx * dx + dy * dy); 1347 1348 for (;;) { 1349 gfx_fb_setpixel(x0, y0); 1350 e2 = err; 1351 x2 = x0; 1352 if ((e2 << 1) >= -dx) { /* x step */ 1353 e2 += dy; 1354 y2 = y0; 1355 while (e2 < ed * width && 1356 (y1 != (uint32_t)y2 || dx > dy)) { 1357 y2 += sy; 1358 gfx_fb_setpixel(x0, y2); 1359 e2 += dx; 1360 } 1361 if (x0 == x1) 1362 break; 1363 e2 = err; 1364 err -= dy; 1365 x0 += sx; 1366 } 1367 if ((e2 << 1) <= dy) { /* y step */ 1368 e2 = dx-e2; 1369 while (e2 < ed * width && 1370 (x1 != (uint32_t)x2 || dx < dy)) { 1371 x2 += sx; 1372 gfx_fb_setpixel(x2, y0); 1373 e2 += dy; 1374 } 1375 if (y0 == y1) 1376 break; 1377 err += dx; 1378 y0 += sy; 1379 } 1380 } 1381 } 1382 1383 /* 1384 * quadratic Bézier curve limited to gradients without sign change. 1385 */ 1386 void 1387 gfx_fb_bezier(uint32_t x0, uint32_t y0, uint32_t x1, uint32_t y1, uint32_t x2, 1388 uint32_t y2, uint32_t wd) 1389 { 1390 int sx, sy, xx, yy, xy, width; 1391 int dx, dy, err, curvature; 1392 int i; 1393 1394 if (gfx_state.tg_fb_type == FB_TEXT) 1395 return; 1396 1397 width = wd; 1398 sx = x2 - x1; 1399 sy = y2 - y1; 1400 xx = x0 - x1; 1401 yy = y0 - y1; 1402 curvature = xx*sy - yy*sx; 1403 1404 if (sx*sx + sy*sy > xx*xx+yy*yy) { 1405 x2 = x0; 1406 x0 = sx + x1; 1407 y2 = y0; 1408 y0 = sy + y1; 1409 curvature = -curvature; 1410 } 1411 if (curvature != 0) { 1412 xx += sx; 1413 sx = x0 < x2? 1 : -1; 1414 xx *= sx; 1415 yy += sy; 1416 sy = y0 < y2? 1 : -1; 1417 yy *= sy; 1418 xy = (xx*yy) << 1; 1419 xx *= xx; 1420 yy *= yy; 1421 if (curvature * sx * sy < 0) { 1422 xx = -xx; 1423 yy = -yy; 1424 xy = -xy; 1425 curvature = -curvature; 1426 } 1427 dx = 4 * sy * curvature * (x1 - x0) + xx - xy; 1428 dy = 4 * sx * curvature * (y0 - y1) + yy - xy; 1429 xx += xx; 1430 yy += yy; 1431 err = dx + dy + xy; 1432 do { 1433 for (i = 0; i <= width; i++) 1434 gfx_fb_setpixel(x0 + i, y0); 1435 if (x0 == x2 && y0 == y2) 1436 return; /* last pixel -> curve finished */ 1437 y1 = 2 * err < dx; 1438 if (2 * err > dy) { 1439 x0 += sx; 1440 dx -= xy; 1441 dy += yy; 1442 err += dy; 1443 } 1444 if (y1 != 0) { 1445 y0 += sy; 1446 dy -= xy; 1447 dx += xx; 1448 err += dx; 1449 } 1450 } while (dy < dx); /* gradient negates -> algorithm fails */ 1451 } 1452 gfx_fb_line(x0, y0, x2, y2, width); 1453 } 1454 1455 /* 1456 * draw rectangle using terminal coordinates and current foreground color. 1457 */ 1458 void 1459 gfx_term_drawrect(uint32_t ux1, uint32_t uy1, uint32_t ux2, uint32_t uy2) 1460 { 1461 int x1, y1, x2, y2; 1462 int xshift, yshift; 1463 int width, i; 1464 uint32_t vf_width, vf_height; 1465 teken_rect_t r; 1466 1467 if (gfx_state.tg_fb_type == FB_TEXT) 1468 return; 1469 1470 vf_width = gfx_state.tg_font.vf_width; 1471 vf_height = gfx_state.tg_font.vf_height; 1472 width = vf_width / 4; /* line width */ 1473 xshift = (vf_width - width) / 2; 1474 yshift = (vf_height - width) / 2; 1475 1476 /* Shift coordinates */ 1477 if (ux1 != 0) 1478 ux1--; 1479 if (uy1 != 0) 1480 uy1--; 1481 ux2--; 1482 uy2--; 1483 1484 /* mark area used in terminal */ 1485 r.tr_begin.tp_col = ux1; 1486 r.tr_begin.tp_row = uy1; 1487 r.tr_end.tp_col = ux2 + 1; 1488 r.tr_end.tp_row = uy2 + 1; 1489 1490 term_image_display(&gfx_state, &r); 1491 1492 /* 1493 * Draw horizontal lines width points thick, shifted from outer edge. 1494 */ 1495 x1 = (ux1 + 1) * vf_width + gfx_state.tg_origin.tp_col; 1496 y1 = uy1 * vf_height + gfx_state.tg_origin.tp_row + yshift; 1497 x2 = ux2 * vf_width + gfx_state.tg_origin.tp_col; 1498 gfx_fb_drawrect(x1, y1, x2, y1 + width, 1); 1499 y2 = uy2 * vf_height + gfx_state.tg_origin.tp_row; 1500 y2 += vf_height - yshift - width; 1501 gfx_fb_drawrect(x1, y2, x2, y2 + width, 1); 1502 1503 /* 1504 * Draw vertical lines width points thick, shifted from outer edge. 1505 */ 1506 x1 = ux1 * vf_width + gfx_state.tg_origin.tp_col + xshift; 1507 y1 = uy1 * vf_height + gfx_state.tg_origin.tp_row; 1508 y1 += vf_height; 1509 y2 = uy2 * vf_height + gfx_state.tg_origin.tp_row; 1510 gfx_fb_drawrect(x1, y1, x1 + width, y2, 1); 1511 x1 = ux2 * vf_width + gfx_state.tg_origin.tp_col; 1512 x1 += vf_width - xshift - width; 1513 gfx_fb_drawrect(x1, y1, x1 + width, y2, 1); 1514 1515 /* Draw upper left corner. */ 1516 x1 = ux1 * vf_width + gfx_state.tg_origin.tp_col + xshift; 1517 y1 = uy1 * vf_height + gfx_state.tg_origin.tp_row; 1518 y1 += vf_height; 1519 1520 x2 = ux1 * vf_width + gfx_state.tg_origin.tp_col; 1521 x2 += vf_width; 1522 y2 = uy1 * vf_height + gfx_state.tg_origin.tp_row + yshift; 1523 for (i = 0; i <= width; i++) 1524 gfx_fb_bezier(x1 + i, y1, x1 + i, y2 + i, x2, y2 + i, width-i); 1525 1526 /* Draw lower left corner. */ 1527 x1 = ux1 * vf_width + gfx_state.tg_origin.tp_col; 1528 x1 += vf_width; 1529 y1 = uy2 * vf_height + gfx_state.tg_origin.tp_row; 1530 y1 += vf_height - yshift; 1531 x2 = ux1 * vf_width + gfx_state.tg_origin.tp_col + xshift; 1532 y2 = uy2 * vf_height + gfx_state.tg_origin.tp_row; 1533 for (i = 0; i <= width; i++) 1534 gfx_fb_bezier(x1, y1 - i, x2 + i, y1 - i, x2 + i, y2, width-i); 1535 1536 /* Draw upper right corner. */ 1537 x1 = ux2 * vf_width + gfx_state.tg_origin.tp_col; 1538 y1 = uy1 * vf_height + gfx_state.tg_origin.tp_row + yshift; 1539 x2 = ux2 * vf_width + gfx_state.tg_origin.tp_col; 1540 x2 += vf_width - xshift - width; 1541 y2 = uy1 * vf_height + gfx_state.tg_origin.tp_row; 1542 y2 += vf_height; 1543 for (i = 0; i <= width; i++) 1544 gfx_fb_bezier(x1, y1 + i, x2 + i, y1 + i, x2 + i, y2, width-i); 1545 1546 /* Draw lower right corner. */ 1547 x1 = ux2 * vf_width + gfx_state.tg_origin.tp_col; 1548 y1 = uy2 * vf_height + gfx_state.tg_origin.tp_row; 1549 y1 += vf_height - yshift; 1550 x2 = ux2 * vf_width + gfx_state.tg_origin.tp_col; 1551 x2 += vf_width - xshift - width; 1552 y2 = uy2 * vf_height + gfx_state.tg_origin.tp_row; 1553 for (i = 0; i <= width; i++) 1554 gfx_fb_bezier(x1, y1 - i, x2 + i, y1 - i, x2 + i, y2, width-i); 1555 } 1556 1557 int 1558 gfx_fb_putimage(png_t *png, uint32_t ux1, uint32_t uy1, uint32_t ux2, 1559 uint32_t uy2, uint32_t flags) 1560 { 1561 #if defined(EFI) 1562 EFI_GRAPHICS_OUTPUT_BLT_PIXEL *p; 1563 #else 1564 struct paletteentry *p; 1565 #endif 1566 uint8_t *data; 1567 uint32_t i, j, x, y, fheight, fwidth; 1568 int rs, gs, bs; 1569 uint8_t r, g, b, a; 1570 bool scale = false; 1571 bool trace = false; 1572 teken_rect_t rect; 1573 1574 trace = (flags & FL_PUTIMAGE_DEBUG) != 0; 1575 1576 if (gfx_state.tg_fb_type == FB_TEXT) { 1577 if (trace) 1578 printf("Framebuffer not active.\n"); 1579 return (1); 1580 } 1581 1582 if (png->color_type != PNG_TRUECOLOR_ALPHA) { 1583 if (trace) 1584 printf("Not truecolor image.\n"); 1585 return (1); 1586 } 1587 1588 if (ux1 > gfx_state.tg_fb.fb_width || 1589 uy1 > gfx_state.tg_fb.fb_height) { 1590 if (trace) 1591 printf("Top left coordinate off screen.\n"); 1592 return (1); 1593 } 1594 1595 if (png->width > UINT16_MAX || png->height > UINT16_MAX) { 1596 if (trace) 1597 printf("Image too large.\n"); 1598 return (1); 1599 } 1600 1601 if (png->width < 1 || png->height < 1) { 1602 if (trace) 1603 printf("Image too small.\n"); 1604 return (1); 1605 } 1606 1607 /* 1608 * If 0 was passed for either ux2 or uy2, then calculate the missing 1609 * part of the bottom right coordinate. 1610 */ 1611 scale = true; 1612 if (ux2 == 0 && uy2 == 0) { 1613 /* Both 0, use the native resolution of the image */ 1614 ux2 = ux1 + png->width; 1615 uy2 = uy1 + png->height; 1616 scale = false; 1617 } else if (ux2 == 0) { 1618 /* Set ux2 from uy2/uy1 to maintain aspect ratio */ 1619 ux2 = ux1 + (png->width * (uy2 - uy1)) / png->height; 1620 } else if (uy2 == 0) { 1621 /* Set uy2 from ux2/ux1 to maintain aspect ratio */ 1622 uy2 = uy1 + (png->height * (ux2 - ux1)) / png->width; 1623 } 1624 1625 if (ux2 > gfx_state.tg_fb.fb_width || 1626 uy2 > gfx_state.tg_fb.fb_height) { 1627 if (trace) 1628 printf("Bottom right coordinate off screen.\n"); 1629 return (1); 1630 } 1631 1632 fwidth = ux2 - ux1; 1633 fheight = uy2 - uy1; 1634 1635 /* 1636 * If the original image dimensions have been passed explicitly, 1637 * disable scaling. 1638 */ 1639 if (fwidth == png->width && fheight == png->height) 1640 scale = false; 1641 1642 if (ux1 == 0) { 1643 /* 1644 * No top left X co-ordinate (real coordinates start at 1), 1645 * place as far right as it will fit. 1646 */ 1647 ux2 = gfx_state.tg_fb.fb_width - gfx_state.tg_origin.tp_col; 1648 ux1 = ux2 - fwidth; 1649 } 1650 1651 if (uy1 == 0) { 1652 /* 1653 * No top left Y co-ordinate (real coordinates start at 1), 1654 * place as far down as it will fit. 1655 */ 1656 uy2 = gfx_state.tg_fb.fb_height - gfx_state.tg_origin.tp_row; 1657 uy1 = uy2 - fheight; 1658 } 1659 1660 if (ux1 >= ux2 || uy1 >= uy2) { 1661 if (trace) 1662 printf("Image dimensions reversed.\n"); 1663 return (1); 1664 } 1665 1666 if (fwidth < 2 || fheight < 2) { 1667 if (trace) 1668 printf("Target area too small\n"); 1669 return (1); 1670 } 1671 1672 if (trace) 1673 printf("Image %ux%u -> %ux%u @%ux%u\n", 1674 png->width, png->height, fwidth, fheight, ux1, uy1); 1675 1676 rect.tr_begin.tp_col = ux1 / gfx_state.tg_font.vf_width; 1677 rect.tr_begin.tp_row = uy1 / gfx_state.tg_font.vf_height; 1678 rect.tr_end.tp_col = (ux1 + fwidth) / gfx_state.tg_font.vf_width; 1679 rect.tr_end.tp_row = (uy1 + fheight) / gfx_state.tg_font.vf_height; 1680 1681 /* 1682 * mark area used in terminal 1683 */ 1684 if (!(flags & FL_PUTIMAGE_NOSCROLL)) 1685 term_image_display(&gfx_state, &rect); 1686 1687 if ((flags & FL_PUTIMAGE_BORDER)) 1688 gfx_fb_drawrect(ux1, uy1, ux2, uy2, 0); 1689 1690 data = malloc(fwidth * fheight * sizeof(*p)); 1691 p = (void *)data; 1692 if (data == NULL) { 1693 if (trace) 1694 printf("Out of memory.\n"); 1695 return (1); 1696 } 1697 1698 /* 1699 * Build image for our framebuffer. 1700 */ 1701 1702 /* Helper to calculate the pixel index from the source png */ 1703 #define GETPIXEL(xx, yy) (((yy) * png->width + (xx)) * png->bpp) 1704 1705 /* 1706 * For each of the x and y directions, calculate the number of pixels 1707 * in the source image that correspond to a single pixel in the target. 1708 * Use fixed-point arithmetic with 16-bits for each of the integer and 1709 * fractional parts. 1710 */ 1711 const uint32_t wcstep = ((png->width - 1) << 16) / (fwidth - 1); 1712 const uint32_t hcstep = ((png->height - 1) << 16) / (fheight - 1); 1713 1714 rs = 8 - (fls(gfx_state.tg_fb.fb_mask_red) - 1715 ffs(gfx_state.tg_fb.fb_mask_red) + 1); 1716 gs = 8 - (fls(gfx_state.tg_fb.fb_mask_green) - 1717 ffs(gfx_state.tg_fb.fb_mask_green) + 1); 1718 bs = 8 - (fls(gfx_state.tg_fb.fb_mask_blue) - 1719 ffs(gfx_state.tg_fb.fb_mask_blue) + 1); 1720 1721 uint32_t hc = 0; 1722 for (y = 0; y < fheight; y++) { 1723 uint32_t hc2 = (hc >> 9) & 0x7f; 1724 uint32_t hc1 = 0x80 - hc2; 1725 1726 uint32_t offset_y = hc >> 16; 1727 uint32_t offset_y1 = offset_y + 1; 1728 1729 uint32_t wc = 0; 1730 for (x = 0; x < fwidth; x++) { 1731 uint32_t wc2 = (wc >> 9) & 0x7f; 1732 uint32_t wc1 = 0x80 - wc2; 1733 1734 uint32_t offset_x = wc >> 16; 1735 uint32_t offset_x1 = offset_x + 1; 1736 1737 /* Target pixel index */ 1738 j = y * fwidth + x; 1739 1740 if (!scale) { 1741 i = GETPIXEL(x, y); 1742 r = png->image[i]; 1743 g = png->image[i + 1]; 1744 b = png->image[i + 2]; 1745 a = png->image[i + 3]; 1746 } else { 1747 uint8_t pixel[4]; 1748 1749 uint32_t p00 = GETPIXEL(offset_x, offset_y); 1750 uint32_t p01 = GETPIXEL(offset_x, offset_y1); 1751 uint32_t p10 = GETPIXEL(offset_x1, offset_y); 1752 uint32_t p11 = GETPIXEL(offset_x1, offset_y1); 1753 1754 /* 1755 * Given a 2x2 array of pixels in the source 1756 * image, combine them to produce a single 1757 * value for the pixel in the target image. 1758 * Each column of pixels is combined using 1759 * a weighted average where the top and bottom 1760 * pixels contribute hc1 and hc2 respectively. 1761 * The calculation for bottom pixel pB and 1762 * top pixel pT is: 1763 * (pT * hc1 + pB * hc2) / (hc1 + hc2) 1764 * Once the values are determined for the two 1765 * columns of pixels, then the columns are 1766 * averaged together in the same way but using 1767 * wc1 and wc2 for the weightings. 1768 * 1769 * Since hc1 and hc2 are chosen so that 1770 * hc1 + hc2 == 128 (and same for wc1 + wc2), 1771 * the >> 14 below is a quick way to divide by 1772 * (hc1 + hc2) * (wc1 + wc2) 1773 */ 1774 for (i = 0; i < 4; i++) 1775 pixel[i] = ( 1776 (png->image[p00 + i] * hc1 + 1777 png->image[p01 + i] * hc2) * wc1 + 1778 (png->image[p10 + i] * hc1 + 1779 png->image[p11 + i] * hc2) * wc2) 1780 >> 14; 1781 1782 r = pixel[0]; 1783 g = pixel[1]; 1784 b = pixel[2]; 1785 a = pixel[3]; 1786 } 1787 1788 if (trace) 1789 printf("r/g/b: %x/%x/%x\n", r, g, b); 1790 /* 1791 * Rough colorspace reduction for 15/16 bit colors. 1792 */ 1793 p[j].Red = r >> rs; 1794 p[j].Green = g >> gs; 1795 p[j].Blue = b >> bs; 1796 p[j].Reserved = a; 1797 1798 wc += wcstep; 1799 } 1800 hc += hcstep; 1801 } 1802 1803 gfx_fb_cons_display(ux1, uy1, fwidth, fheight, data); 1804 free(data); 1805 return (0); 1806 } 1807 1808 /* 1809 * Reset font flags to FONT_AUTO. 1810 */ 1811 void 1812 reset_font_flags(void) 1813 { 1814 struct fontlist *fl; 1815 1816 STAILQ_FOREACH(fl, &fonts, font_next) { 1817 fl->font_flags = FONT_AUTO; 1818 } 1819 } 1820 1821 static vt_font_bitmap_data_t * 1822 set_font(teken_unit_t *rows, teken_unit_t *cols, teken_unit_t h, teken_unit_t w) 1823 { 1824 vt_font_bitmap_data_t *font = NULL; 1825 struct fontlist *fl; 1826 unsigned height = h; 1827 unsigned width = w; 1828 1829 /* 1830 * First check for manually loaded font. 1831 */ 1832 STAILQ_FOREACH(fl, &fonts, font_next) { 1833 if (fl->font_flags == FONT_MANUAL) { 1834 font = fl->font_data; 1835 if (font->vfbd_font == NULL && fl->font_load != NULL && 1836 fl->font_name != NULL) { 1837 font = fl->font_load(fl->font_name); 1838 } 1839 if (font == NULL || font->vfbd_font == NULL) 1840 font = NULL; 1841 break; 1842 } 1843 } 1844 1845 if (font != NULL) { 1846 *rows = (height - BORDER_PIXELS) / font->vfbd_height; 1847 *cols = (width - BORDER_PIXELS) / font->vfbd_width; 1848 return (font); 1849 } 1850 1851 /* 1852 * Find best font for these dimensions, or use default 1853 * 1854 * A 1 pixel border is the absolute minimum we could have 1855 * as a border around the text window (BORDER_PIXELS = 2), 1856 * however a slightly larger border not only looks better 1857 * but for the fonts currently statically built into the 1858 * emulator causes much better font selection for the 1859 * normal range of screen resolutions. 1860 */ 1861 STAILQ_FOREACH(fl, &fonts, font_next) { 1862 font = fl->font_data; 1863 if ((((*rows * font->vfbd_height) + BORDER_PIXELS) <= height) && 1864 (((*cols * font->vfbd_width) + BORDER_PIXELS) <= width)) { 1865 if (font->vfbd_font == NULL || 1866 fl->font_flags == FONT_RELOAD) { 1867 if (fl->font_load != NULL && 1868 fl->font_name != NULL) { 1869 font = fl->font_load(fl->font_name); 1870 } 1871 if (font == NULL) 1872 continue; 1873 } 1874 *rows = (height - BORDER_PIXELS) / font->vfbd_height; 1875 *cols = (width - BORDER_PIXELS) / font->vfbd_width; 1876 break; 1877 } 1878 font = NULL; 1879 } 1880 1881 if (font == NULL) { 1882 /* 1883 * We have fonts sorted smallest last, try it before 1884 * falling back to builtin. 1885 */ 1886 fl = STAILQ_LAST(&fonts, fontlist, font_next); 1887 if (fl != NULL && fl->font_load != NULL && 1888 fl->font_name != NULL) { 1889 font = fl->font_load(fl->font_name); 1890 } 1891 if (font == NULL) 1892 font = &DEFAULT_FONT_DATA; 1893 1894 *rows = (height - BORDER_PIXELS) / font->vfbd_height; 1895 *cols = (width - BORDER_PIXELS) / font->vfbd_width; 1896 } 1897 1898 return (font); 1899 } 1900 1901 static void 1902 cons_clear(void) 1903 { 1904 char clear[] = { '\033', 'c' }; 1905 1906 /* Reset terminal */ 1907 teken_input(&gfx_state.tg_teken, clear, sizeof(clear)); 1908 gfx_state.tg_functions->tf_param(&gfx_state, TP_SHOWCURSOR, 0); 1909 } 1910 1911 void 1912 setup_font(teken_gfx_t *state, teken_unit_t height, teken_unit_t width) 1913 { 1914 vt_font_bitmap_data_t *font_data; 1915 teken_pos_t *tp = &state->tg_tp; 1916 char env[8]; 1917 int i; 1918 1919 /* 1920 * set_font() will select a appropriate sized font for 1921 * the number of rows and columns selected. If we don't 1922 * have a font that will fit, then it will use the 1923 * default builtin font and adjust the rows and columns 1924 * to fit on the screen. 1925 */ 1926 font_data = set_font(&tp->tp_row, &tp->tp_col, height, width); 1927 1928 if (font_data == NULL) 1929 panic("out of memory"); 1930 1931 for (i = 0; i < VFNT_MAPS; i++) { 1932 state->tg_font.vf_map[i] = 1933 font_data->vfbd_font->vf_map[i]; 1934 state->tg_font.vf_map_count[i] = 1935 font_data->vfbd_font->vf_map_count[i]; 1936 } 1937 1938 state->tg_font.vf_bytes = font_data->vfbd_font->vf_bytes; 1939 state->tg_font.vf_height = font_data->vfbd_font->vf_height; 1940 state->tg_font.vf_width = font_data->vfbd_font->vf_width; 1941 1942 snprintf(env, sizeof (env), "%ux%u", 1943 state->tg_font.vf_width, state->tg_font.vf_height); 1944 env_setenv("screen.font", EV_VOLATILE | EV_NOHOOK, 1945 env, font_set, env_nounset); 1946 } 1947 1948 /* Binary search for the glyph. Return 0 if not found. */ 1949 static uint16_t 1950 font_bisearch(const vfnt_map_t *map, uint32_t len, teken_char_t src) 1951 { 1952 unsigned min, mid, max; 1953 1954 min = 0; 1955 max = len - 1; 1956 1957 /* Empty font map. */ 1958 if (len == 0) 1959 return (0); 1960 /* Character below minimal entry. */ 1961 if (src < map[0].vfm_src) 1962 return (0); 1963 /* Optimization: ASCII characters occur very often. */ 1964 if (src <= map[0].vfm_src + map[0].vfm_len) 1965 return (src - map[0].vfm_src + map[0].vfm_dst); 1966 /* Character above maximum entry. */ 1967 if (src > map[max].vfm_src + map[max].vfm_len) 1968 return (0); 1969 1970 /* Binary search. */ 1971 while (max >= min) { 1972 mid = (min + max) / 2; 1973 if (src < map[mid].vfm_src) 1974 max = mid - 1; 1975 else if (src > map[mid].vfm_src + map[mid].vfm_len) 1976 min = mid + 1; 1977 else 1978 return (src - map[mid].vfm_src + map[mid].vfm_dst); 1979 } 1980 1981 return (0); 1982 } 1983 1984 /* 1985 * Return glyph bitmap. If glyph is not found, we will return bitmap 1986 * for the first (offset 0) glyph. 1987 */ 1988 uint8_t * 1989 font_lookup(const struct vt_font *vf, teken_char_t c, const teken_attr_t *a) 1990 { 1991 uint16_t dst; 1992 size_t stride; 1993 1994 /* Substitute bold with normal if not found. */ 1995 if (a->ta_format & TF_BOLD) { 1996 dst = font_bisearch(vf->vf_map[VFNT_MAP_BOLD], 1997 vf->vf_map_count[VFNT_MAP_BOLD], c); 1998 if (dst != 0) 1999 goto found; 2000 } 2001 dst = font_bisearch(vf->vf_map[VFNT_MAP_NORMAL], 2002 vf->vf_map_count[VFNT_MAP_NORMAL], c); 2003 2004 found: 2005 stride = howmany(vf->vf_width, 8) * vf->vf_height; 2006 return (&vf->vf_bytes[dst * stride]); 2007 } 2008 2009 static int 2010 load_mapping(int fd, struct vt_font *fp, int n) 2011 { 2012 size_t i, size; 2013 ssize_t rv; 2014 vfnt_map_t *mp; 2015 2016 if (fp->vf_map_count[n] == 0) 2017 return (0); 2018 2019 size = fp->vf_map_count[n] * sizeof(*mp); 2020 mp = malloc(size); 2021 if (mp == NULL) 2022 return (ENOMEM); 2023 fp->vf_map[n] = mp; 2024 2025 rv = read(fd, mp, size); 2026 if (rv < 0 || (size_t)rv != size) { 2027 free(fp->vf_map[n]); 2028 fp->vf_map[n] = NULL; 2029 return (EIO); 2030 } 2031 2032 for (i = 0; i < fp->vf_map_count[n]; i++) { 2033 mp[i].vfm_src = be32toh(mp[i].vfm_src); 2034 mp[i].vfm_dst = be16toh(mp[i].vfm_dst); 2035 mp[i].vfm_len = be16toh(mp[i].vfm_len); 2036 } 2037 return (0); 2038 } 2039 2040 static int 2041 builtin_mapping(struct vt_font *fp, int n) 2042 { 2043 size_t size; 2044 struct vfnt_map *mp; 2045 2046 if (n >= VFNT_MAPS) 2047 return (EINVAL); 2048 2049 if (fp->vf_map_count[n] == 0) 2050 return (0); 2051 2052 size = fp->vf_map_count[n] * sizeof(*mp); 2053 mp = malloc(size); 2054 if (mp == NULL) 2055 return (ENOMEM); 2056 fp->vf_map[n] = mp; 2057 2058 memcpy(mp, DEFAULT_FONT_DATA.vfbd_font->vf_map[n], size); 2059 return (0); 2060 } 2061 2062 /* 2063 * Load font from builtin or from file. 2064 * We do need special case for builtin because the builtin font glyphs 2065 * are compressed and we do need to uncompress them. 2066 * Having single load_font() for both cases will help us to simplify 2067 * font switch handling. 2068 */ 2069 static vt_font_bitmap_data_t * 2070 load_font(char *path) 2071 { 2072 int fd, i; 2073 uint32_t glyphs; 2074 struct font_header fh; 2075 struct fontlist *fl; 2076 vt_font_bitmap_data_t *bp; 2077 struct vt_font *fp; 2078 size_t size; 2079 ssize_t rv; 2080 2081 /* Get our entry from the font list. */ 2082 STAILQ_FOREACH(fl, &fonts, font_next) { 2083 if (strcmp(fl->font_name, path) == 0) 2084 break; 2085 } 2086 if (fl == NULL) 2087 return (NULL); /* Should not happen. */ 2088 2089 bp = fl->font_data; 2090 if (bp->vfbd_font != NULL && fl->font_flags != FONT_RELOAD) 2091 return (bp); 2092 2093 fd = -1; 2094 /* 2095 * Special case for builtin font. 2096 * Builtin font is the very first font we load, we do not have 2097 * previous loads to be released. 2098 */ 2099 if (fl->font_flags == FONT_BUILTIN) { 2100 if ((fp = calloc(1, sizeof(struct vt_font))) == NULL) 2101 return (NULL); 2102 2103 fp->vf_width = DEFAULT_FONT_DATA.vfbd_width; 2104 fp->vf_height = DEFAULT_FONT_DATA.vfbd_height; 2105 2106 fp->vf_bytes = malloc(DEFAULT_FONT_DATA.vfbd_uncompressed_size); 2107 if (fp->vf_bytes == NULL) { 2108 free(fp); 2109 return (NULL); 2110 } 2111 2112 bp->vfbd_uncompressed_size = 2113 DEFAULT_FONT_DATA.vfbd_uncompressed_size; 2114 bp->vfbd_compressed_size = 2115 DEFAULT_FONT_DATA.vfbd_compressed_size; 2116 2117 if (lz4_decompress(DEFAULT_FONT_DATA.vfbd_compressed_data, 2118 fp->vf_bytes, 2119 DEFAULT_FONT_DATA.vfbd_compressed_size, 2120 DEFAULT_FONT_DATA.vfbd_uncompressed_size, 0) != 0) { 2121 free(fp->vf_bytes); 2122 free(fp); 2123 return (NULL); 2124 } 2125 2126 for (i = 0; i < VFNT_MAPS; i++) { 2127 fp->vf_map_count[i] = 2128 DEFAULT_FONT_DATA.vfbd_font->vf_map_count[i]; 2129 if (builtin_mapping(fp, i) != 0) 2130 goto free_done; 2131 } 2132 2133 bp->vfbd_font = fp; 2134 return (bp); 2135 } 2136 2137 fd = open(path, O_RDONLY); 2138 if (fd < 0) 2139 return (NULL); 2140 2141 size = sizeof(fh); 2142 rv = read(fd, &fh, size); 2143 if (rv < 0 || (size_t)rv != size) { 2144 bp = NULL; 2145 goto done; 2146 } 2147 if (memcmp(fh.fh_magic, FONT_HEADER_MAGIC, sizeof(fh.fh_magic)) != 0) { 2148 bp = NULL; 2149 goto done; 2150 } 2151 if ((fp = calloc(1, sizeof(struct vt_font))) == NULL) { 2152 bp = NULL; 2153 goto done; 2154 } 2155 for (i = 0; i < VFNT_MAPS; i++) 2156 fp->vf_map_count[i] = be32toh(fh.fh_map_count[i]); 2157 2158 glyphs = be32toh(fh.fh_glyph_count); 2159 fp->vf_width = fh.fh_width; 2160 fp->vf_height = fh.fh_height; 2161 2162 size = howmany(fp->vf_width, 8) * fp->vf_height * glyphs; 2163 bp->vfbd_uncompressed_size = size; 2164 if ((fp->vf_bytes = malloc(size)) == NULL) 2165 goto free_done; 2166 2167 rv = read(fd, fp->vf_bytes, size); 2168 if (rv < 0 || (size_t)rv != size) 2169 goto free_done; 2170 for (i = 0; i < VFNT_MAPS; i++) { 2171 if (load_mapping(fd, fp, i) != 0) 2172 goto free_done; 2173 } 2174 2175 /* 2176 * Reset builtin flag now as we have full font loaded. 2177 */ 2178 if (fl->font_flags == FONT_BUILTIN) 2179 fl->font_flags = FONT_AUTO; 2180 2181 /* 2182 * Release previously loaded entries. We can do this now, as 2183 * the new font is loaded. Note, there can be no console 2184 * output till the new font is in place and teken is notified. 2185 * We do need to keep fl->font_data for glyph dimensions. 2186 */ 2187 STAILQ_FOREACH(fl, &fonts, font_next) { 2188 if (fl->font_data->vfbd_font == NULL) 2189 continue; 2190 2191 for (i = 0; i < VFNT_MAPS; i++) 2192 free(fl->font_data->vfbd_font->vf_map[i]); 2193 free(fl->font_data->vfbd_font->vf_bytes); 2194 free(fl->font_data->vfbd_font); 2195 fl->font_data->vfbd_font = NULL; 2196 } 2197 2198 bp->vfbd_font = fp; 2199 bp->vfbd_compressed_size = 0; 2200 2201 done: 2202 if (fd != -1) 2203 close(fd); 2204 return (bp); 2205 2206 free_done: 2207 for (i = 0; i < VFNT_MAPS; i++) 2208 free(fp->vf_map[i]); 2209 free(fp->vf_bytes); 2210 free(fp); 2211 bp = NULL; 2212 goto done; 2213 } 2214 2215 struct name_entry { 2216 char *n_name; 2217 SLIST_ENTRY(name_entry) n_entry; 2218 }; 2219 2220 SLIST_HEAD(name_list, name_entry); 2221 2222 /* Read font names from index file. */ 2223 static struct name_list * 2224 read_list(char *fonts) 2225 { 2226 struct name_list *nl; 2227 struct name_entry *np; 2228 char *dir, *ptr; 2229 char buf[PATH_MAX]; 2230 int fd, len; 2231 2232 dir = strdup(fonts); 2233 if (dir == NULL) 2234 return (NULL); 2235 2236 ptr = strrchr(dir, '/'); 2237 *ptr = '\0'; 2238 2239 fd = open(fonts, O_RDONLY); 2240 if (fd < 0) 2241 return (NULL); 2242 2243 nl = malloc(sizeof(*nl)); 2244 if (nl == NULL) { 2245 close(fd); 2246 return (nl); 2247 } 2248 2249 SLIST_INIT(nl); 2250 while ((len = fgetstr(buf, sizeof (buf), fd)) >= 0) { 2251 if (*buf == '#' || *buf == '\0') 2252 continue; 2253 2254 if (bcmp(buf, "MENU", 4) == 0) 2255 continue; 2256 2257 if (bcmp(buf, "FONT", 4) == 0) 2258 continue; 2259 2260 ptr = strchr(buf, ':'); 2261 if (ptr == NULL) 2262 continue; 2263 else 2264 *ptr = '\0'; 2265 2266 np = malloc(sizeof(*np)); 2267 if (np == NULL) { 2268 close(fd); 2269 return (nl); /* return what we have */ 2270 } 2271 if (asprintf(&np->n_name, "%s/%s", dir, buf) < 0) { 2272 free(np); 2273 close(fd); 2274 return (nl); /* return what we have */ 2275 } 2276 SLIST_INSERT_HEAD(nl, np, n_entry); 2277 } 2278 close(fd); 2279 return (nl); 2280 } 2281 2282 /* 2283 * Read the font properties and insert new entry into the list. 2284 * The font list is built in descending order. 2285 */ 2286 static bool 2287 insert_font(char *name, FONT_FLAGS flags) 2288 { 2289 struct font_header fh; 2290 struct fontlist *fp, *previous, *entry, *next; 2291 size_t size; 2292 ssize_t rv; 2293 int fd; 2294 char *font_name; 2295 2296 font_name = NULL; 2297 if (flags == FONT_BUILTIN) { 2298 /* 2299 * We only install builtin font once, while setting up 2300 * initial console. Since this will happen very early, 2301 * we assume asprintf will not fail. Once we have access to 2302 * files, the builtin font will be replaced by font loaded 2303 * from file. 2304 */ 2305 if (!STAILQ_EMPTY(&fonts)) 2306 return (false); 2307 2308 fh.fh_width = DEFAULT_FONT_DATA.vfbd_width; 2309 fh.fh_height = DEFAULT_FONT_DATA.vfbd_height; 2310 2311 (void) asprintf(&font_name, "%dx%d", 2312 DEFAULT_FONT_DATA.vfbd_width, 2313 DEFAULT_FONT_DATA.vfbd_height); 2314 } else { 2315 fd = open(name, O_RDONLY); 2316 if (fd < 0) 2317 return (false); 2318 rv = read(fd, &fh, sizeof(fh)); 2319 close(fd); 2320 if (rv < 0 || (size_t)rv != sizeof(fh)) 2321 return (false); 2322 2323 if (memcmp(fh.fh_magic, FONT_HEADER_MAGIC, 2324 sizeof(fh.fh_magic)) != 0) 2325 return (false); 2326 font_name = strdup(name); 2327 } 2328 2329 if (font_name == NULL) 2330 return (false); 2331 2332 /* 2333 * If we have an entry with the same glyph dimensions, replace 2334 * the file name and mark us. We only support unique dimensions. 2335 */ 2336 STAILQ_FOREACH(entry, &fonts, font_next) { 2337 if (fh.fh_width == entry->font_data->vfbd_width && 2338 fh.fh_height == entry->font_data->vfbd_height) { 2339 free(entry->font_name); 2340 entry->font_name = font_name; 2341 entry->font_flags = FONT_RELOAD; 2342 return (true); 2343 } 2344 } 2345 2346 fp = calloc(sizeof(*fp), 1); 2347 if (fp == NULL) { 2348 free(font_name); 2349 return (false); 2350 } 2351 fp->font_data = calloc(sizeof(*fp->font_data), 1); 2352 if (fp->font_data == NULL) { 2353 free(font_name); 2354 free(fp); 2355 return (false); 2356 } 2357 fp->font_name = font_name; 2358 fp->font_flags = flags; 2359 fp->font_load = load_font; 2360 fp->font_data->vfbd_width = fh.fh_width; 2361 fp->font_data->vfbd_height = fh.fh_height; 2362 2363 if (STAILQ_EMPTY(&fonts)) { 2364 STAILQ_INSERT_HEAD(&fonts, fp, font_next); 2365 return (true); 2366 } 2367 2368 previous = NULL; 2369 size = fp->font_data->vfbd_width * fp->font_data->vfbd_height; 2370 2371 STAILQ_FOREACH(entry, &fonts, font_next) { 2372 vt_font_bitmap_data_t *bd; 2373 2374 bd = entry->font_data; 2375 /* Should fp be inserted before the entry? */ 2376 if (size > bd->vfbd_width * bd->vfbd_height) { 2377 if (previous == NULL) { 2378 STAILQ_INSERT_HEAD(&fonts, fp, font_next); 2379 } else { 2380 STAILQ_INSERT_AFTER(&fonts, previous, fp, 2381 font_next); 2382 } 2383 return (true); 2384 } 2385 next = STAILQ_NEXT(entry, font_next); 2386 if (next == NULL || 2387 size > next->font_data->vfbd_width * 2388 next->font_data->vfbd_height) { 2389 STAILQ_INSERT_AFTER(&fonts, entry, fp, font_next); 2390 return (true); 2391 } 2392 previous = entry; 2393 } 2394 return (true); 2395 } 2396 2397 static int 2398 font_set(struct env_var *ev __unused, int flags __unused, const void *value) 2399 { 2400 struct fontlist *fl; 2401 char *eptr; 2402 unsigned long x = 0, y = 0; 2403 2404 /* 2405 * Attempt to extract values from "XxY" string. In case of error, 2406 * we have unmaching glyph dimensions and will just output the 2407 * available values. 2408 */ 2409 if (value != NULL) { 2410 x = strtoul(value, &eptr, 10); 2411 if (*eptr == 'x') 2412 y = strtoul(eptr + 1, &eptr, 10); 2413 } 2414 STAILQ_FOREACH(fl, &fonts, font_next) { 2415 if (fl->font_data->vfbd_width == x && 2416 fl->font_data->vfbd_height == y) 2417 break; 2418 } 2419 if (fl != NULL) { 2420 /* Reset any FONT_MANUAL flag. */ 2421 reset_font_flags(); 2422 2423 /* Mark this font manually loaded */ 2424 fl->font_flags = FONT_MANUAL; 2425 cons_update_mode(gfx_state.tg_fb_type != FB_TEXT); 2426 return (CMD_OK); 2427 } 2428 2429 printf("Available fonts:\n"); 2430 STAILQ_FOREACH(fl, &fonts, font_next) { 2431 printf(" %dx%d\n", fl->font_data->vfbd_width, 2432 fl->font_data->vfbd_height); 2433 } 2434 return (CMD_OK); 2435 } 2436 2437 void 2438 bios_text_font(bool use_vga_font) 2439 { 2440 if (use_vga_font) 2441 (void) insert_font(VGA_8X16_FONT, FONT_MANUAL); 2442 else 2443 (void) insert_font(DEFAULT_8X16_FONT, FONT_MANUAL); 2444 } 2445 2446 void 2447 autoload_font(bool bios) 2448 { 2449 struct name_list *nl; 2450 struct name_entry *np; 2451 2452 nl = read_list("/boot/fonts/INDEX.fonts"); 2453 if (nl == NULL) 2454 return; 2455 2456 while (!SLIST_EMPTY(nl)) { 2457 np = SLIST_FIRST(nl); 2458 SLIST_REMOVE_HEAD(nl, n_entry); 2459 if (insert_font(np->n_name, FONT_AUTO) == false) 2460 printf("failed to add font: %s\n", np->n_name); 2461 free(np->n_name); 2462 free(np); 2463 } 2464 2465 /* 2466 * If vga text mode was requested, load vga.font (8x16 bold) font. 2467 */ 2468 if (bios) { 2469 bios_text_font(true); 2470 } 2471 2472 (void) cons_update_mode(gfx_state.tg_fb_type != FB_TEXT); 2473 } 2474 2475 COMMAND_SET(load_font, "loadfont", "load console font from file", command_font); 2476 2477 static int 2478 command_font(int argc, char *argv[]) 2479 { 2480 int i, c, rc; 2481 struct fontlist *fl; 2482 vt_font_bitmap_data_t *bd; 2483 bool list; 2484 2485 list = false; 2486 optind = 1; 2487 optreset = 1; 2488 rc = CMD_OK; 2489 2490 while ((c = getopt(argc, argv, "l")) != -1) { 2491 switch (c) { 2492 case 'l': 2493 list = true; 2494 break; 2495 case '?': 2496 default: 2497 return (CMD_ERROR); 2498 } 2499 } 2500 2501 argc -= optind; 2502 argv += optind; 2503 2504 if (argc > 1 || (list && argc != 0)) { 2505 printf("Usage: loadfont [-l] | [file.fnt]\n"); 2506 return (CMD_ERROR); 2507 } 2508 2509 if (list) { 2510 STAILQ_FOREACH(fl, &fonts, font_next) { 2511 printf("font %s: %dx%d%s\n", fl->font_name, 2512 fl->font_data->vfbd_width, 2513 fl->font_data->vfbd_height, 2514 fl->font_data->vfbd_font == NULL? "" : " loaded"); 2515 } 2516 return (CMD_OK); 2517 } 2518 2519 /* Clear scren */ 2520 cons_clear(); 2521 2522 if (argc == 1) { 2523 char *name = argv[0]; 2524 2525 if (insert_font(name, FONT_MANUAL) == false) { 2526 printf("loadfont error: failed to load: %s\n", name); 2527 return (CMD_ERROR); 2528 } 2529 2530 (void) cons_update_mode(gfx_state.tg_fb_type != FB_TEXT); 2531 return (CMD_OK); 2532 } 2533 2534 if (argc == 0) { 2535 /* 2536 * Walk entire font list, release any loaded font, and set 2537 * autoload flag. The font list does have at least the builtin 2538 * default font. 2539 */ 2540 STAILQ_FOREACH(fl, &fonts, font_next) { 2541 if (fl->font_data->vfbd_font != NULL) { 2542 2543 bd = fl->font_data; 2544 /* 2545 * Note the setup_font() is releasing 2546 * font bytes. 2547 */ 2548 for (i = 0; i < VFNT_MAPS; i++) 2549 free(bd->vfbd_font->vf_map[i]); 2550 free(fl->font_data->vfbd_font); 2551 fl->font_data->vfbd_font = NULL; 2552 fl->font_data->vfbd_uncompressed_size = 0; 2553 fl->font_flags = FONT_AUTO; 2554 } 2555 } 2556 (void) cons_update_mode(gfx_state.tg_fb_type != FB_TEXT); 2557 } 2558 return (rc); 2559 } 2560 2561 bool 2562 gfx_get_edid_resolution(struct vesa_edid_info *edid, edid_res_list_t *res) 2563 { 2564 struct resolution *rp, *p; 2565 2566 /* 2567 * Walk detailed timings tables (4). 2568 */ 2569 if ((edid->display.supported_features 2570 & EDID_FEATURE_PREFERRED_TIMING_MODE) != 0) { 2571 /* Walk detailed timing descriptors (4) */ 2572 for (int i = 0; i < DET_TIMINGS; i++) { 2573 /* 2574 * Reserved value 0 is not used for display decriptor. 2575 */ 2576 if (edid->detailed_timings[i].pixel_clock == 0) 2577 continue; 2578 if ((rp = malloc(sizeof(*rp))) == NULL) 2579 continue; 2580 rp->width = GET_EDID_INFO_WIDTH(edid, i); 2581 rp->height = GET_EDID_INFO_HEIGHT(edid, i); 2582 if (rp->width > 0 && rp->width <= EDID_MAX_PIXELS && 2583 rp->height > 0 && rp->height <= EDID_MAX_LINES) 2584 TAILQ_INSERT_TAIL(res, rp, next); 2585 else 2586 free(rp); 2587 } 2588 } 2589 2590 /* 2591 * Walk standard timings list (8). 2592 */ 2593 for (int i = 0; i < STD_TIMINGS; i++) { 2594 /* Is this field unused? */ 2595 if (edid->standard_timings[i] == 0x0101) 2596 continue; 2597 2598 if ((rp = malloc(sizeof(*rp))) == NULL) 2599 continue; 2600 2601 rp->width = HSIZE(edid->standard_timings[i]); 2602 switch (RATIO(edid->standard_timings[i])) { 2603 case RATIO1_1: 2604 rp->height = HSIZE(edid->standard_timings[i]); 2605 if (edid->header.version > 1 || 2606 edid->header.revision > 2) { 2607 rp->height = rp->height * 10 / 16; 2608 } 2609 break; 2610 case RATIO4_3: 2611 rp->height = HSIZE(edid->standard_timings[i]) * 3 / 4; 2612 break; 2613 case RATIO5_4: 2614 rp->height = HSIZE(edid->standard_timings[i]) * 4 / 5; 2615 break; 2616 case RATIO16_9: 2617 rp->height = HSIZE(edid->standard_timings[i]) * 9 / 16; 2618 break; 2619 } 2620 2621 /* 2622 * Create resolution list in decreasing order, except keep 2623 * first entry (preferred timing mode). 2624 */ 2625 TAILQ_FOREACH(p, res, next) { 2626 if (p->width * p->height < rp->width * rp->height) { 2627 /* Keep preferred mode first */ 2628 if (TAILQ_FIRST(res) == p) 2629 TAILQ_INSERT_AFTER(res, p, rp, next); 2630 else 2631 TAILQ_INSERT_BEFORE(p, rp, next); 2632 break; 2633 } 2634 if (TAILQ_NEXT(p, next) == NULL) { 2635 TAILQ_INSERT_TAIL(res, rp, next); 2636 break; 2637 } 2638 } 2639 } 2640 return (!TAILQ_EMPTY(res)); 2641 } 2642