hw/tcx.c

   1 /*
   2  * QEMU TCX Frame buffer
   3  *
   4  * Copyright (c) 2003-2005 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include "qemu-common.h"
  26 #include "ui/console.h"
  27 #include "ui/pixel_ops.h"
  28 #include "hw/sysbus.h"
  29 #include "hw/qdev-addr.h"
  30
  31 #define MAXX 1024
  32 #define MAXY 768
  33 #define TCX_DAC_NREGS 16
  34 #define TCX_THC_NREGS_8  0x081c
  35 #define TCX_THC_NREGS_24 0x1000
  36 #define TCX_TEC_NREGS    0x1000
  37
  38 typedef struct TCXState {
  39     SysBusDevice busdev;
  40     hwaddr addr;
  41     QemuConsole *con;
  42     uint8_t *vram;
  43     uint32_t *vram24, *cplane;
  44     MemoryRegion vram_mem;
  45     MemoryRegion vram_8bit;
  46     MemoryRegion vram_24bit;
  47     MemoryRegion vram_cplane;
  48     MemoryRegion dac;
  49     MemoryRegion tec;
  50     MemoryRegion thc24;
  51     MemoryRegion thc8;
  52     ram_addr_t vram24_offset, cplane_offset;
  53     uint32_t vram_size;
  54     uint32_t palette[256];
  55     uint8_t r[256], g[256], b[256];
  56     uint16_t width, height, depth;
  57     uint8_t dac_index, dac_state;
  58 } TCXState;
  59
  60 static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
  61                             Error **errp);
  62 static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
  63                             Error **errp);
  64
  65 static void tcx_set_dirty(TCXState *s)
  66 {
  67     memory_region_set_dirty(&s->vram_mem, 0, MAXX * MAXY);
  68 }
  69
  70 static void tcx24_set_dirty(TCXState *s)
  71 {
  72     memory_region_set_dirty(&s->vram_mem, s->vram24_offset, MAXX * MAXY * 4);
  73     memory_region_set_dirty(&s->vram_mem, s->cplane_offset, MAXX * MAXY * 4);
  74 }
  75
  76 static void update_palette_entries(TCXState *s, int start, int end)
  77 {
  78     DisplaySurface *surface = qemu_console_surface(s->con);
  79     int i;
  80
  81     for (i = start; i < end; i++) {
  82         switch (surface_bits_per_pixel(surface)) {
  83         default:
  84         case 8:
  85             s->palette[i] = rgb_to_pixel8(s->r[i], s->g[i], s->b[i]);
  86             break;
  87         case 15:
  88             s->palette[i] = rgb_to_pixel15(s->r[i], s->g[i], s->b[i]);
  89             break;
  90         case 16:
  91             s->palette[i] = rgb_to_pixel16(s->r[i], s->g[i], s->b[i]);
  92             break;
  93         case 32:
  94             if (is_surface_bgr(surface)) {
  95                 s->palette[i] = rgb_to_pixel32bgr(s->r[i], s->g[i], s->b[i]);
  96             } else {
  97                 s->palette[i] = rgb_to_pixel32(s->r[i], s->g[i], s->b[i]);
  98             }
  99             break;
 100         }
 101     }
 102     if (s->depth == 24) {
 103         tcx24_set_dirty(s);
 104     } else {
 105         tcx_set_dirty(s);
 106     }
 107 }
 108
 109 static void tcx_draw_line32(TCXState *s1, uint8_t *d,
 110                             const uint8_t *s, int width)
 111 {
 112     int x;
 113     uint8_t val;
 114     uint32_t *p = (uint32_t *)d;
 115
 116     for(x = 0; x < width; x++) {
 117         val = *s++;
 118         *p++ = s1->palette[val];
 119     }
 120 }
 121
 122 static void tcx_draw_line16(TCXState *s1, uint8_t *d,
 123                             const uint8_t *s, int width)
 124 {
 125     int x;
 126     uint8_t val;
 127     uint16_t *p = (uint16_t *)d;
 128
 129     for(x = 0; x < width; x++) {
 130         val = *s++;
 131         *p++ = s1->palette[val];
 132     }
 133 }
 134
 135 static void tcx_draw_line8(TCXState *s1, uint8_t *d,
 136                            const uint8_t *s, int width)
 137 {
 138     int x;
 139     uint8_t val;
 140
 141     for(x = 0; x < width; x++) {
 142         val = *s++;
 143         *d++ = s1->palette[val];
 144     }
 145 }
 146
 147 /*
 148   XXX Could be much more optimal:
 149   * detect if line/page/whole screen is in 24 bit mode
 150   * if destination is also BGR, use memcpy
 151   */
 152 static inline void tcx24_draw_line32(TCXState *s1, uint8_t *d,
 153                                      const uint8_t *s, int width,
 154                                      const uint32_t *cplane,
 155                                      const uint32_t *s24)
 156 {
 157     DisplaySurface *surface = qemu_console_surface(s1->con);
 158     int x, bgr, r, g, b;
 159     uint8_t val, *p8;
 160     uint32_t *p = (uint32_t *)d;
 161     uint32_t dval;
 162
 163     bgr = is_surface_bgr(surface);
 164     for(x = 0; x < width; x++, s++, s24++) {
 165         if ((be32_to_cpu(*cplane++) & 0xff000000) == 0x03000000) {
 166             // 24-bit direct, BGR order
 167             p8 = (uint8_t *)s24;
 168             p8++;
 169             b = *p8++;
 170             g = *p8++;
 171             r = *p8;
 172             if (bgr)
 173                 dval = rgb_to_pixel32bgr(r, g, b);
 174             else
 175                 dval = rgb_to_pixel32(r, g, b);
 176         } else {
 177             val = *s;
 178             dval = s1->palette[val];
 179         }
 180         *p++ = dval;
 181     }
 182 }
 183
 184 static inline int check_dirty(TCXState *s, ram_addr_t page, ram_addr_t page24,
 185                               ram_addr_t cpage)
 186 {
 187     int ret;
 188
 189     ret = memory_region_get_dirty(&s->vram_mem, page, TARGET_PAGE_SIZE,
 190                                   DIRTY_MEMORY_VGA);
 191     ret |= memory_region_get_dirty(&s->vram_mem, page24, TARGET_PAGE_SIZE * 4,
 192                                    DIRTY_MEMORY_VGA);
 193     ret |= memory_region_get_dirty(&s->vram_mem, cpage, TARGET_PAGE_SIZE * 4,
 194                                    DIRTY_MEMORY_VGA);
 195     return ret;
 196 }
 197
 198 static inline void reset_dirty(TCXState *ts, ram_addr_t page_min,
 199                                ram_addr_t page_max, ram_addr_t page24,
 200                               ram_addr_t cpage)
 201 {
 202     memory_region_reset_dirty(&ts->vram_mem,
 203                               page_min, page_max + TARGET_PAGE_SIZE,
 204                               DIRTY_MEMORY_VGA);
 205     memory_region_reset_dirty(&ts->vram_mem,
 206                               page24 + page_min * 4,
 207                               page24 + page_max * 4 + TARGET_PAGE_SIZE,
 208                               DIRTY_MEMORY_VGA);
 209     memory_region_reset_dirty(&ts->vram_mem,
 210                               cpage + page_min * 4,
 211                               cpage + page_max * 4 + TARGET_PAGE_SIZE,
 212                               DIRTY_MEMORY_VGA);
 213 }
 214
 215 /* Fixed line length 1024 allows us to do nice tricks not possible on
 216    VGA... */
 217 static void tcx_update_display(void *opaque)
 218 {
 219     TCXState *ts = opaque;
 220     DisplaySurface *surface = qemu_console_surface(ts->con);
 221     ram_addr_t page, page_min, page_max;
 222     int y, y_start, dd, ds;
 223     uint8_t *d, *s;
 224     void (*f)(TCXState *s1, uint8_t *dst, const uint8_t *src, int width);
 225
 226     if (surface_bits_per_pixel(surface) == 0) {
 227         return;
 228     }
 229
 230     page = 0;
 231     y_start = -1;
 232     page_min = -1;
 233     page_max = 0;
 234     d = surface_data(surface);
 235     s = ts->vram;
 236     dd = surface_stride(surface);
 237     ds = 1024;
 238
 239     switch (surface_bits_per_pixel(surface)) {
 240     case 32:
 241         f = tcx_draw_line32;
 242         break;
 243     case 15:
 244     case 16:
 245         f = tcx_draw_line16;
 246         break;
 247     default:
 248     case 8:
 249         f = tcx_draw_line8;
 250         break;
 251     case 0:
 252         return;
 253     }
 254
 255     for(y = 0; y < ts->height; y += 4, page += TARGET_PAGE_SIZE) {
 256         if (memory_region_get_dirty(&ts->vram_mem, page, TARGET_PAGE_SIZE,
 257                                     DIRTY_MEMORY_VGA)) {
 258             if (y_start < 0)
 259                 y_start = y;
 260             if (page < page_min)
 261                 page_min = page;
 262             if (page > page_max)
 263                 page_max = page;
 264             f(ts, d, s, ts->width);
 265             d += dd;
 266             s += ds;
 267             f(ts, d, s, ts->width);
 268             d += dd;
 269             s += ds;
 270             f(ts, d, s, ts->width);
 271             d += dd;
 272             s += ds;
 273             f(ts, d, s, ts->width);
 274             d += dd;
 275             s += ds;
 276         } else {
 277             if (y_start >= 0) {
 278                 /* flush to display */
 279                 dpy_gfx_update(ts->con, 0, y_start,
 280                                ts->width, y - y_start);
 281                 y_start = -1;
 282             }
 283             d += dd * 4;
 284             s += ds * 4;
 285         }
 286     }
 287     if (y_start >= 0) {
 288         /* flush to display */
 289         dpy_gfx_update(ts->con, 0, y_start,
 290                        ts->width, y - y_start);
 291     }
 292     /* reset modified pages */
 293     if (page_max >= page_min) {
 294         memory_region_reset_dirty(&ts->vram_mem,
 295                                   page_min, page_max + TARGET_PAGE_SIZE,
 296                                   DIRTY_MEMORY_VGA);
 297     }
 298 }
 299
 300 static void tcx24_update_display(void *opaque)
 301 {
 302     TCXState *ts = opaque;
 303     DisplaySurface *surface = qemu_console_surface(ts->con);
 304     ram_addr_t page, page_min, page_max, cpage, page24;
 305     int y, y_start, dd, ds;
 306     uint8_t *d, *s;
 307     uint32_t *cptr, *s24;
 308
 309     if (surface_bits_per_pixel(surface) != 32) {
 310             return;
 311     }
 312
 313     page = 0;
 314     page24 = ts->vram24_offset;
 315     cpage = ts->cplane_offset;
 316     y_start = -1;
 317     page_min = -1;
 318     page_max = 0;
 319     d = surface_data(surface);
 320     s = ts->vram;
 321     s24 = ts->vram24;
 322     cptr = ts->cplane;
 323     dd = surface_stride(surface);
 324     ds = 1024;
 325
 326     for(y = 0; y < ts->height; y += 4, page += TARGET_PAGE_SIZE,
 327             page24 += TARGET_PAGE_SIZE, cpage += TARGET_PAGE_SIZE) {
 328         if (check_dirty(ts, page, page24, cpage)) {
 329             if (y_start < 0)
 330                 y_start = y;
 331             if (page < page_min)
 332                 page_min = page;
 333             if (page > page_max)
 334                 page_max = page;
 335             tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
 336             d += dd;
 337             s += ds;
 338             cptr += ds;
 339             s24 += ds;
 340             tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
 341             d += dd;
 342             s += ds;
 343             cptr += ds;
 344             s24 += ds;
 345             tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
 346             d += dd;
 347             s += ds;
 348             cptr += ds;
 349             s24 += ds;
 350             tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
 351             d += dd;
 352             s += ds;
 353             cptr += ds;
 354             s24 += ds;
 355         } else {
 356             if (y_start >= 0) {
 357                 /* flush to display */
 358                 dpy_gfx_update(ts->con, 0, y_start,
 359                                ts->width, y - y_start);
 360                 y_start = -1;
 361             }
 362             d += dd * 4;
 363             s += ds * 4;
 364             cptr += ds * 4;
 365             s24 += ds * 4;
 366         }
 367     }
 368     if (y_start >= 0) {
 369         /* flush to display */
 370         dpy_gfx_update(ts->con, 0, y_start,
 371                        ts->width, y - y_start);
 372     }
 373     /* reset modified pages */
 374     if (page_max >= page_min) {
 375         reset_dirty(ts, page_min, page_max, page24, cpage);
 376     }
 377 }
 378
 379 static void tcx_invalidate_display(void *opaque)
 380 {
 381     TCXState *s = opaque;
 382
 383     tcx_set_dirty(s);
 384     qemu_console_resize(s->con, s->width, s->height);
 385 }
 386
 387 static void tcx24_invalidate_display(void *opaque)
 388 {
 389     TCXState *s = opaque;
 390
 391     tcx_set_dirty(s);
 392     tcx24_set_dirty(s);
 393     qemu_console_resize(s->con, s->width, s->height);
 394 }
 395
 396 static int vmstate_tcx_post_load(void *opaque, int version_id)
 397 {
 398     TCXState *s = opaque;
 399
 400     update_palette_entries(s, 0, 256);
 401     if (s->depth == 24) {
 402         tcx24_set_dirty(s);
 403     } else {
 404         tcx_set_dirty(s);
 405     }
 406
 407     return 0;
 408 }
 409
 410 static const VMStateDescription vmstate_tcx = {
 411     .name ="tcx",
 412     .version_id = 4,
 413     .minimum_version_id = 4,
 414     .minimum_version_id_old = 4,
 415     .post_load = vmstate_tcx_post_load,
 416     .fields      = (VMStateField []) {
 417         VMSTATE_UINT16(height, TCXState),
 418         VMSTATE_UINT16(width, TCXState),
 419         VMSTATE_UINT16(depth, TCXState),
 420         VMSTATE_BUFFER(r, TCXState),
 421         VMSTATE_BUFFER(g, TCXState),
 422         VMSTATE_BUFFER(b, TCXState),
 423         VMSTATE_UINT8(dac_index, TCXState),
 424         VMSTATE_UINT8(dac_state, TCXState),
 425         VMSTATE_END_OF_LIST()
 426     }
 427 };
 428
 429 static void tcx_reset(DeviceState *d)
 430 {
 431     TCXState *s = container_of(d, TCXState, busdev.qdev);
 432
 433     /* Initialize palette */
 434     memset(s->r, 0, 256);
 435     memset(s->g, 0, 256);
 436     memset(s->b, 0, 256);
 437     s->r[255] = s->g[255] = s->b[255] = 255;
 438     update_palette_entries(s, 0, 256);
 439     memset(s->vram, 0, MAXX*MAXY);
 440     memory_region_reset_dirty(&s->vram_mem, 0, MAXX * MAXY * (1 + 4 + 4),
 441                               DIRTY_MEMORY_VGA);
 442     s->dac_index = 0;
 443     s->dac_state = 0;
 444 }
 445
 446 static uint64_t tcx_dac_readl(void *opaque, hwaddr addr,
 447                               unsigned size)
 448 {
 449     return 0;
 450 }
 451
 452 static void tcx_dac_writel(void *opaque, hwaddr addr, uint64_t val,
 453                            unsigned size)
 454 {
 455     TCXState *s = opaque;
 456
 457     switch (addr) {
 458     case 0:
 459         s->dac_index = val >> 24;
 460         s->dac_state = 0;
 461         break;
 462     case 4:
 463         switch (s->dac_state) {
 464         case 0:
 465             s->r[s->dac_index] = val >> 24;
 466             update_palette_entries(s, s->dac_index, s->dac_index + 1);
 467             s->dac_state++;
 468             break;
 469         case 1:
 470             s->g[s->dac_index] = val >> 24;
 471             update_palette_entries(s, s->dac_index, s->dac_index + 1);
 472             s->dac_state++;
 473             break;
 474         case 2:
 475             s->b[s->dac_index] = val >> 24;
 476             update_palette_entries(s, s->dac_index, s->dac_index + 1);
 477             s->dac_index = (s->dac_index + 1) & 255; // Index autoincrement
 478         default:
 479             s->dac_state = 0;
 480             break;
 481         }
 482         break;
 483     default:
 484         break;
 485     }
 486 }
 487
 488 static const MemoryRegionOps tcx_dac_ops = {
 489     .read = tcx_dac_readl,
 490     .write = tcx_dac_writel,
 491     .endianness = DEVICE_NATIVE_ENDIAN,
 492     .valid = {
 493         .min_access_size = 4,
 494         .max_access_size = 4,
 495     },
 496 };
 497
 498 static uint64_t dummy_readl(void *opaque, hwaddr addr,
 499                             unsigned size)
 500 {
 501     return 0;
 502 }
 503
 504 static void dummy_writel(void *opaque, hwaddr addr,
 505                          uint64_t val, unsigned size)
 506 {
 507 }
 508
 509 static const MemoryRegionOps dummy_ops = {
 510     .read = dummy_readl,
 511     .write = dummy_writel,
 512     .endianness = DEVICE_NATIVE_ENDIAN,
 513     .valid = {
 514         .min_access_size = 4,
 515         .max_access_size = 4,
 516     },
 517 };
 518
 519 static int tcx_init1(SysBusDevice *dev)
 520 {
 521     TCXState *s = FROM_SYSBUS(TCXState, dev);
 522     ram_addr_t vram_offset = 0;
 523     int size;
 524     uint8_t *vram_base;
 525
 526     memory_region_init_ram(&s->vram_mem, "tcx.vram",
 527                            s->vram_size * (1 + 4 + 4));
 528     vmstate_register_ram_global(&s->vram_mem);
 529     vram_base = memory_region_get_ram_ptr(&s->vram_mem);
 530
 531     /* 8-bit plane */
 532     s->vram = vram_base;
 533     size = s->vram_size;
 534     memory_region_init_alias(&s->vram_8bit, "tcx.vram.8bit",
 535                              &s->vram_mem, vram_offset, size);
 536     sysbus_init_mmio(dev, &s->vram_8bit);
 537     vram_offset += size;
 538     vram_base += size;
 539
 540     /* DAC */
 541     memory_region_init_io(&s->dac, &tcx_dac_ops, s, "tcx.dac", TCX_DAC_NREGS);
 542     sysbus_init_mmio(dev, &s->dac);
 543
 544     /* TEC (dummy) */
 545     memory_region_init_io(&s->tec, &dummy_ops, s, "tcx.tec", TCX_TEC_NREGS);
 546     sysbus_init_mmio(dev, &s->tec);
 547     /* THC: NetBSD writes here even with 8-bit display: dummy */
 548     memory_region_init_io(&s->thc24, &dummy_ops, s, "tcx.thc24",
 549                           TCX_THC_NREGS_24);
 550     sysbus_init_mmio(dev, &s->thc24);
 551
 552     if (s->depth == 24) {
 553         /* 24-bit plane */
 554         size = s->vram_size * 4;
 555         s->vram24 = (uint32_t *)vram_base;
 556         s->vram24_offset = vram_offset;
 557         memory_region_init_alias(&s->vram_24bit, "tcx.vram.24bit",
 558                                  &s->vram_mem, vram_offset, size);
 559         sysbus_init_mmio(dev, &s->vram_24bit);
 560         vram_offset += size;
 561         vram_base += size;
 562
 563         /* Control plane */
 564         size = s->vram_size * 4;
 565         s->cplane = (uint32_t *)vram_base;
 566         s->cplane_offset = vram_offset;
 567         memory_region_init_alias(&s->vram_cplane, "tcx.vram.cplane",
 568                                  &s->vram_mem, vram_offset, size);
 569         sysbus_init_mmio(dev, &s->vram_cplane);
 570
 571         s->con = graphic_console_init(tcx24_update_display,
 572                                       tcx24_invalidate_display,
 573                                       tcx24_screen_dump, NULL, s);
 574     } else {
 575         /* THC 8 bit (dummy) */
 576         memory_region_init_io(&s->thc8, &dummy_ops, s, "tcx.thc8",
 577                               TCX_THC_NREGS_8);
 578         sysbus_init_mmio(dev, &s->thc8);
 579
 580         s->con = graphic_console_init(tcx_update_display,
 581                                       tcx_invalidate_display,
 582                                       tcx_screen_dump, NULL, s);
 583     }
 584
 585     qemu_console_resize(s->con, s->width, s->height);
 586     return 0;
 587 }
 588
 589 static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch,
 590                             Error **errp)
 591 {
 592     TCXState *s = opaque;
 593     FILE *f;
 594     uint8_t *d, *d1, v;
 595     int ret, y, x;
 596
 597     f = fopen(filename, "wb");
 598     if (!f) {
 599         error_setg(errp, "failed to open file '%s': %s", filename,
 600                    strerror(errno));
 601         return;
 602     }
 603     ret = fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255);
 604     if (ret < 0) {
 605         goto write_err;
 606     }
 607     d1 = s->vram;
 608     for(y = 0; y < s->height; y++) {
 609         d = d1;
 610         for(x = 0; x < s->width; x++) {
 611             v = *d;
 612             ret = fputc(s->r[v], f);
 613             if (ret == EOF) {
 614                 goto write_err;
 615             }
 616             ret = fputc(s->g[v], f);
 617             if (ret == EOF) {
 618                 goto write_err;
 619             }
 620             ret = fputc(s->b[v], f);
 621             if (ret == EOF) {
 622                 goto write_err;
 623             }
 624             d++;
 625         }
 626         d1 += MAXX;
 627     }
 628
 629 out:
 630     fclose(f);
 631     return;
 632
 633 write_err:
 634     error_setg(errp, "failed to write to file '%s': %s", filename,
 635                strerror(errno));
 636     unlink(filename);
 637     goto out;
 638 }
 639
 640 static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch,
 641                               Error **errp)
 642 {
 643     TCXState *s = opaque;
 644     FILE *f;
 645     uint8_t *d, *d1, v;
 646     uint32_t *s24, *cptr, dval;
 647     int ret, y, x;
 648
 649     f = fopen(filename, "wb");
 650     if (!f) {
 651         error_setg(errp, "failed to open file '%s': %s", filename,
 652                    strerror(errno));
 653         return;
 654     }
 655     ret = fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255);
 656     if (ret < 0) {
 657         goto write_err;
 658     }
 659     d1 = s->vram;
 660     s24 = s->vram24;
 661     cptr = s->cplane;
 662     for(y = 0; y < s->height; y++) {
 663         d = d1;
 664         for(x = 0; x < s->width; x++, d++, s24++) {
 665             if ((*cptr++ & 0xff000000) == 0x03000000) { // 24-bit direct
 666                 dval = *s24 & 0x00ffffff;
 667                 ret = fputc((dval >> 16) & 0xff, f);
 668                 if (ret == EOF) {
 669                     goto write_err;
 670                 }
 671                 ret = fputc((dval >> 8) & 0xff, f);
 672                 if (ret == EOF) {
 673                     goto write_err;
 674                 }
 675                 ret = fputc(dval & 0xff, f);
 676                 if (ret == EOF) {
 677                     goto write_err;
 678                 }
 679             } else {
 680                 v = *d;
 681                 ret = fputc(s->r[v], f);
 682                 if (ret == EOF) {
 683                     goto write_err;
 684                 }
 685                 ret = fputc(s->g[v], f);
 686                 if (ret == EOF) {
 687                     goto write_err;
 688                 }
 689                 ret = fputc(s->b[v], f);
 690                 if (ret == EOF) {
 691                     goto write_err;
 692                 }
 693             }
 694         }
 695         d1 += MAXX;
 696     }
 697
 698 out:
 699     fclose(f);
 700     return;
 701
 702 write_err:
 703     error_setg(errp, "failed to write to file '%s': %s", filename,
 704                strerror(errno));
 705     unlink(filename);
 706     goto out;
 707 }
 708
 709 static Property tcx_properties[] = {
 710     DEFINE_PROP_TADDR("addr",      TCXState, addr,      -1),
 711     DEFINE_PROP_HEX32("vram_size", TCXState, vram_size, -1),
 712     DEFINE_PROP_UINT16("width",    TCXState, width,     -1),
 713     DEFINE_PROP_UINT16("height",   TCXState, height,    -1),
 714     DEFINE_PROP_UINT16("depth",    TCXState, depth,     -1),
 715     DEFINE_PROP_END_OF_LIST(),
 716 };
 717
 718 static void tcx_class_init(ObjectClass *klass, void *data)
 719 {
 720     DeviceClass *dc = DEVICE_CLASS(klass);
 721     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 722
 723     k->init = tcx_init1;
 724     dc->reset = tcx_reset;
 725     dc->vmsd = &vmstate_tcx;
 726     dc->props = tcx_properties;
 727 }
 728
 729 static const TypeInfo tcx_info = {
 730     .name          = "SUNW,tcx",
 731     .parent        = TYPE_SYS_BUS_DEVICE,
 732     .instance_size = sizeof(TCXState),
 733     .class_init    = tcx_class_init,
 734 };
 735
 736 static void tcx_register_types(void)
 737 {
 738     type_register_static(&tcx_info);
 739 }
 740
 741 type_init(tcx_register_types)