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