hw/display/artist.c

   1 /*
   2  * QEMU HP Artist Emulation
   3  *
   4  * Copyright (c) 2019 Sven Schnelle <svens@stackframe.org>
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7  */
   8
   9 #include "qemu/osdep.h"
  10 #include "qemu-common.h"
  11 #include "qemu/error-report.h"
  12 #include "qemu/log.h"
  13 #include "qemu/module.h"
  14 #include "qemu/units.h"
  15 #include "qapi/error.h"
  16 #include "hw/sysbus.h"
  17 #include "hw/loader.h"
  18 #include "hw/qdev-core.h"
  19 #include "hw/qdev-properties.h"
  20 #include "migration/vmstate.h"
  21 #include "ui/console.h"
  22 #include "trace.h"
  23 #include "framebuffer.h"
  24 #include "qom/object.h"
  25
  26 #define TYPE_ARTIST "artist"
  27 OBJECT_DECLARE_SIMPLE_TYPE(ARTISTState, ARTIST)
  28
  29 #ifdef HOST_WORDS_BIGENDIAN
  30 #define ROP8OFF(_i) (3 - (_i))
  31 #else
  32 #define ROP8OFF
  33 #endif
  34
  35 struct vram_buffer {
  36     MemoryRegion mr;
  37     uint8_t *data;
  38     unsigned int size;
  39     unsigned int width;
  40     unsigned int height;
  41 };
  42
  43 struct ARTISTState {
  44     SysBusDevice parent_obj;
  45
  46     QemuConsole *con;
  47     MemoryRegion vram_mem;
  48     MemoryRegion mem_as_root;
  49     MemoryRegion reg;
  50     MemoryRegionSection fbsection;
  51
  52     void *vram_int_mr;
  53     AddressSpace as;
  54
  55     struct vram_buffer vram_buffer[16];
  56
  57     uint16_t width;
  58     uint16_t height;
  59     uint16_t depth;
  60
  61     uint32_t fg_color;
  62     uint32_t bg_color;
  63
  64     uint32_t vram_char_y;
  65     uint32_t vram_bitmask;
  66
  67     uint32_t vram_start;
  68     uint32_t vram_pos;
  69
  70     uint32_t vram_size;
  71
  72     uint32_t blockmove_source;
  73     uint32_t blockmove_dest;
  74     uint32_t blockmove_size;
  75
  76     uint32_t line_size;
  77     uint32_t line_end;
  78     uint32_t line_xy;
  79     uint32_t line_pattern_start;
  80     uint32_t line_pattern_skip;
  81
  82     uint32_t cursor_pos;
  83
  84     uint32_t cursor_height;
  85     uint32_t cursor_width;
  86
  87     uint32_t plane_mask;
  88
  89     uint32_t reg_100080;
  90     uint32_t reg_300200;
  91     uint32_t reg_300208;
  92     uint32_t reg_300218;
  93
  94     uint32_t cmap_bm_access;
  95     uint32_t dst_bm_access;
  96     uint32_t src_bm_access;
  97     uint32_t control_plane;
  98     uint32_t transfer_data;
  99     uint32_t image_bitmap_op;
 100
 101     uint32_t font_write1;
 102     uint32_t font_write2;
 103     uint32_t font_write_pos_y;
 104
 105     int draw_line_pattern;
 106 };
 107
 108 typedef enum {
 109     ARTIST_BUFFER_AP = 1,
 110     ARTIST_BUFFER_OVERLAY = 2,
 111     ARTIST_BUFFER_CURSOR1 = 6,
 112     ARTIST_BUFFER_CURSOR2 = 7,
 113     ARTIST_BUFFER_ATTRIBUTE = 13,
 114     ARTIST_BUFFER_CMAP = 15,
 115 } artist_buffer_t;
 116
 117 typedef enum {
 118     VRAM_IDX = 0x1004a0,
 119     VRAM_BITMASK = 0x1005a0,
 120     VRAM_WRITE_INCR_X = 0x100600,
 121     VRAM_WRITE_INCR_X2 = 0x100604,
 122     VRAM_WRITE_INCR_Y = 0x100620,
 123     VRAM_START = 0x100800,
 124     BLOCK_MOVE_SIZE = 0x100804,
 125     BLOCK_MOVE_SOURCE = 0x100808,
 126     TRANSFER_DATA = 0x100820,
 127     FONT_WRITE_INCR_Y = 0x1008a0,
 128     VRAM_START_TRIGGER = 0x100a00,
 129     VRAM_SIZE_TRIGGER = 0x100a04,
 130     FONT_WRITE_START = 0x100aa0,
 131     BLOCK_MOVE_DEST_TRIGGER = 0x100b00,
 132     BLOCK_MOVE_SIZE_TRIGGER = 0x100b04,
 133     LINE_XY = 0x100ccc,
 134     PATTERN_LINE_START = 0x100ecc,
 135     LINE_SIZE = 0x100e04,
 136     LINE_END = 0x100e44,
 137     CMAP_BM_ACCESS = 0x118000,
 138     DST_BM_ACCESS = 0x118004,
 139     SRC_BM_ACCESS = 0x118008,
 140     CONTROL_PLANE = 0x11800c,
 141     FG_COLOR = 0x118010,
 142     BG_COLOR = 0x118014,
 143     PLANE_MASK = 0x118018,
 144     IMAGE_BITMAP_OP = 0x11801c,
 145     CURSOR_POS = 0x300100,
 146     CURSOR_CTRL = 0x300104,
 147 } artist_reg_t;
 148
 149 typedef enum {
 150     ARTIST_ROP_CLEAR = 0,
 151     ARTIST_ROP_COPY = 3,
 152     ARTIST_ROP_XOR = 6,
 153     ARTIST_ROP_NOT_DST = 10,
 154     ARTIST_ROP_SET = 15,
 155 } artist_rop_t;
 156
 157 #define REG_NAME(_x) case _x: return " "#_x;
 158 static const char *artist_reg_name(uint64_t addr)
 159 {
 160     switch ((artist_reg_t)addr) {
 161     REG_NAME(VRAM_IDX);
 162     REG_NAME(VRAM_BITMASK);
 163     REG_NAME(VRAM_WRITE_INCR_X);
 164     REG_NAME(VRAM_WRITE_INCR_X2);
 165     REG_NAME(VRAM_WRITE_INCR_Y);
 166     REG_NAME(VRAM_START);
 167     REG_NAME(BLOCK_MOVE_SIZE);
 168     REG_NAME(BLOCK_MOVE_SOURCE);
 169     REG_NAME(FG_COLOR);
 170     REG_NAME(BG_COLOR);
 171     REG_NAME(PLANE_MASK);
 172     REG_NAME(VRAM_START_TRIGGER);
 173     REG_NAME(VRAM_SIZE_TRIGGER);
 174     REG_NAME(BLOCK_MOVE_DEST_TRIGGER);
 175     REG_NAME(BLOCK_MOVE_SIZE_TRIGGER);
 176     REG_NAME(TRANSFER_DATA);
 177     REG_NAME(CONTROL_PLANE);
 178     REG_NAME(IMAGE_BITMAP_OP);
 179     REG_NAME(CMAP_BM_ACCESS);
 180     REG_NAME(DST_BM_ACCESS);
 181     REG_NAME(SRC_BM_ACCESS);
 182     REG_NAME(CURSOR_POS);
 183     REG_NAME(CURSOR_CTRL);
 184     REG_NAME(LINE_XY);
 185     REG_NAME(PATTERN_LINE_START);
 186     REG_NAME(LINE_SIZE);
 187     REG_NAME(LINE_END);
 188     REG_NAME(FONT_WRITE_INCR_Y);
 189     REG_NAME(FONT_WRITE_START);
 190     }
 191     return "";
 192 }
 193 #undef REG_NAME
 194
 195 /* artist has a fixed line length of 2048 bytes. */
 196 #define ADDR_TO_Y(addr) extract32(addr, 11, 11)
 197 #define ADDR_TO_X(addr) extract32(addr, 0, 11)
 198
 199 static int16_t artist_get_x(uint32_t reg)
 200 {
 201     return reg >> 16;
 202 }
 203
 204 static int16_t artist_get_y(uint32_t reg)
 205 {
 206     return reg & 0xffff;
 207 }
 208
 209 static void artist_invalidate_lines(struct vram_buffer *buf,
 210                                     int starty, int height)
 211 {
 212     int start = starty * buf->width;
 213     int size;
 214
 215     if (starty + height > buf->height)
 216         height = buf->height - starty;
 217
 218     size = height * buf->width;
 219
 220     if (start + size <= buf->size) {
 221         memory_region_set_dirty(&buf->mr, start, size);
 222     }
 223 }
 224
 225 static int vram_write_pix_per_transfer(ARTISTState *s)
 226 {
 227     if (s->cmap_bm_access) {
 228         return 1 << ((s->cmap_bm_access >> 27) & 0x0f);
 229     } else {
 230         return 1 << ((s->dst_bm_access >> 27) & 0x0f);
 231     }
 232 }
 233
 234 static int vram_pixel_length(ARTISTState *s)
 235 {
 236     if (s->cmap_bm_access) {
 237         return (s->cmap_bm_access >> 24) & 0x07;
 238     } else {
 239         return (s->dst_bm_access >> 24) & 0x07;
 240     }
 241 }
 242
 243 static int vram_write_bufidx(ARTISTState *s)
 244 {
 245     if (s->cmap_bm_access) {
 246         return (s->cmap_bm_access >> 12) & 0x0f;
 247     } else {
 248         return (s->dst_bm_access >> 12) & 0x0f;
 249     }
 250 }
 251
 252 static int vram_read_bufidx(ARTISTState *s)
 253 {
 254     if (s->cmap_bm_access) {
 255         return (s->cmap_bm_access >> 12) & 0x0f;
 256     } else {
 257         return (s->src_bm_access >> 12) & 0x0f;
 258     }
 259 }
 260
 261 static struct vram_buffer *vram_read_buffer(ARTISTState *s)
 262 {
 263     return &s->vram_buffer[vram_read_bufidx(s)];
 264 }
 265
 266 static struct vram_buffer *vram_write_buffer(ARTISTState *s)
 267 {
 268     return &s->vram_buffer[vram_write_bufidx(s)];
 269 }
 270
 271 static uint8_t artist_get_color(ARTISTState *s)
 272 {
 273     if (s->image_bitmap_op & 2) {
 274         return s->fg_color;
 275     } else {
 276         return s->bg_color;
 277     }
 278 }
 279
 280 static artist_rop_t artist_get_op(ARTISTState *s)
 281 {
 282     return (s->image_bitmap_op >> 8) & 0xf;
 283 }
 284
 285 static void artist_rop8(ARTISTState *s, struct vram_buffer *buf,
 286                         unsigned int offset, uint8_t val)
 287 {
 288     const artist_rop_t op = artist_get_op(s);
 289     uint8_t plane_mask;
 290     uint8_t *dst;
 291
 292     if (offset >= buf->size) {
 293         qemu_log_mask(LOG_GUEST_ERROR,
 294                       "rop8 offset:%u bufsize:%u\n", offset, buf->size);
 295         return;
 296     }
 297     dst = buf->data + offset;
 298     plane_mask = s->plane_mask & 0xff;
 299
 300     switch (op) {
 301     case ARTIST_ROP_CLEAR:
 302         *dst &= ~plane_mask;
 303         break;
 304
 305     case ARTIST_ROP_COPY:
 306         *dst = (*dst & ~plane_mask) | (val & plane_mask);
 307         break;
 308
 309     case ARTIST_ROP_XOR:
 310         *dst ^= val & plane_mask;
 311         break;
 312
 313     case ARTIST_ROP_NOT_DST:
 314         *dst ^= plane_mask;
 315         break;
 316
 317     case ARTIST_ROP_SET:
 318         *dst |= plane_mask;
 319         break;
 320
 321     default:
 322         qemu_log_mask(LOG_UNIMP, "%s: unsupported rop %d\n", __func__, op);
 323         break;
 324     }
 325 }
 326
 327 static void artist_get_cursor_pos(ARTISTState *s, int *x, int *y)
 328 {
 329     /*
 330      * Don't know whether these magic offset values are configurable via
 331      * some register. They are the same for all resolutions, so don't
 332      * bother about it.
 333      */
 334
 335     *y = 0x47a - artist_get_y(s->cursor_pos);
 336     *x = ((artist_get_x(s->cursor_pos) - 338) / 2);
 337
 338     if (*x > s->width) {
 339         *x = 0;
 340     }
 341
 342     if (*y > s->height) {
 343         *y = 0;
 344     }
 345 }
 346
 347 static void artist_invalidate_cursor(ARTISTState *s)
 348 {
 349     int x, y;
 350     artist_get_cursor_pos(s, &x, &y);
 351     artist_invalidate_lines(&s->vram_buffer[ARTIST_BUFFER_AP],
 352                             y, s->cursor_height);
 353 }
 354
 355 static void vram_bit_write(ARTISTState *s, int posy, bool incr_x,
 356                            int size, uint32_t data)
 357 {
 358     struct vram_buffer *buf;
 359     uint32_t vram_bitmask = s->vram_bitmask;
 360     int mask, i, pix_count, pix_length;
 361     unsigned int posx, offset, width;
 362     uint8_t *data8, *p;
 363
 364     pix_count = vram_write_pix_per_transfer(s);
 365     pix_length = vram_pixel_length(s);
 366
 367     buf = vram_write_buffer(s);
 368     width = buf->width;
 369
 370     if (s->cmap_bm_access) {
 371         offset = s->vram_pos;
 372     } else {
 373         posx = ADDR_TO_X(s->vram_pos >> 2);
 374         posy += ADDR_TO_Y(s->vram_pos >> 2);
 375         offset = posy * width + posx;
 376     }
 377
 378     if (!buf->size || offset >= buf->size) {
 379         return;
 380     }
 381
 382     p = buf->data;
 383
 384     if (pix_count > size * 8) {
 385         pix_count = size * 8;
 386     }
 387
 388     switch (pix_length) {
 389     case 0:
 390         if (s->image_bitmap_op & 0x20000000) {
 391             data &= vram_bitmask;
 392         }
 393
 394         for (i = 0; i < pix_count; i++) {
 395             uint32_t off = offset + pix_count - 1 - i;
 396             if (off < buf->size) {
 397                 artist_rop8(s, buf, off,
 398                             (data & 1) ? (s->plane_mask >> 24) : 0);
 399             }
 400             data >>= 1;
 401         }
 402         memory_region_set_dirty(&buf->mr, offset, pix_count);
 403         break;
 404
 405     case 3:
 406         if (s->cmap_bm_access) {
 407             if (offset + 3 < buf->size) {
 408                 *(uint32_t *)(p + offset) = data;
 409             }
 410             break;
 411         }
 412         data8 = (uint8_t *)&data;
 413
 414         for (i = 3; i >= 0; i--) {
 415             if (!(s->image_bitmap_op & 0x20000000) ||
 416                 s->vram_bitmask & (1 << (28 + i))) {
 417                 uint32_t off = offset + 3 - i;
 418                 if (off < buf->size) {
 419                     artist_rop8(s, buf, off, data8[ROP8OFF(i)]);
 420                 }
 421             }
 422         }
 423         memory_region_set_dirty(&buf->mr, offset, 3);
 424         break;
 425
 426     case 6:
 427         switch (size) {
 428         default:
 429         case 4:
 430             vram_bitmask = s->vram_bitmask;
 431             break;
 432
 433         case 2:
 434             vram_bitmask = s->vram_bitmask >> 16;
 435             break;
 436
 437         case 1:
 438             vram_bitmask = s->vram_bitmask >> 24;
 439             break;
 440         }
 441
 442         for (i = 0; i < pix_count && offset + i < buf->size; i++) {
 443             mask = 1 << (pix_count - 1 - i);
 444
 445             if (!(s->image_bitmap_op & 0x20000000) ||
 446                 (vram_bitmask & mask)) {
 447                 if (data & mask) {
 448                     artist_rop8(s, buf, offset + i, s->fg_color);
 449                 } else {
 450                     if (!(s->image_bitmap_op & 0x10000002)) {
 451                         artist_rop8(s, buf, offset + i, s->bg_color);
 452                     }
 453                 }
 454             }
 455         }
 456         memory_region_set_dirty(&buf->mr, offset, pix_count);
 457         break;
 458
 459     default:
 460         qemu_log_mask(LOG_UNIMP, "%s: unknown pixel length %d\n",
 461                       __func__, pix_length);
 462         break;
 463     }
 464
 465     if (incr_x) {
 466         if (s->cmap_bm_access) {
 467             s->vram_pos += 4;
 468         } else {
 469             s->vram_pos += pix_count << 2;
 470         }
 471     }
 472
 473     if (vram_write_bufidx(s) == ARTIST_BUFFER_CURSOR1 ||
 474         vram_write_bufidx(s) == ARTIST_BUFFER_CURSOR2) {
 475         artist_invalidate_cursor(s);
 476     }
 477 }
 478
 479 static void block_move(ARTISTState *s,
 480                        unsigned int source_x, unsigned int source_y,
 481                        unsigned int dest_x,   unsigned int dest_y,
 482                        unsigned int width,    unsigned int height)
 483 {
 484     struct vram_buffer *buf;
 485     int line, endline, lineincr, startcolumn, endcolumn, columnincr, column;
 486     unsigned int dst, src;
 487
 488     trace_artist_block_move(source_x, source_y, dest_x, dest_y, width, height);
 489
 490     if (s->control_plane != 0) {
 491         /* We don't support CONTROL_PLANE accesses */
 492         qemu_log_mask(LOG_UNIMP, "%s: CONTROL_PLANE: %08x\n", __func__,
 493                       s->control_plane);
 494         return;
 495     }
 496
 497     buf = &s->vram_buffer[ARTIST_BUFFER_AP];
 498     if (height > buf->height) {
 499         height = buf->height;
 500     }
 501     if (width > buf->width) {
 502         width = buf->width;
 503     }
 504
 505     if (dest_y > source_y) {
 506         /* move down */
 507         line = height - 1;
 508         endline = -1;
 509         lineincr = -1;
 510     } else {
 511         /* move up */
 512         line = 0;
 513         endline = height;
 514         lineincr = 1;
 515     }
 516
 517     if (dest_x > source_x) {
 518         /* move right */
 519         startcolumn = width - 1;
 520         endcolumn = -1;
 521         columnincr = -1;
 522     } else {
 523         /* move left */
 524         startcolumn = 0;
 525         endcolumn = width;
 526         columnincr = 1;
 527     }
 528
 529     for ( ; line != endline; line += lineincr) {
 530         src = source_x + ((line + source_y) * buf->width) + startcolumn;
 531         dst = dest_x + ((line + dest_y) * buf->width) + startcolumn;
 532
 533         for (column = startcolumn; column != endcolumn; column += columnincr) {
 534             if (dst >= buf->size || src >= buf->size) {
 535                 continue;
 536             }
 537             artist_rop8(s, buf, dst, buf->data[src]);
 538             src += columnincr;
 539             dst += columnincr;
 540         }
 541     }
 542
 543     artist_invalidate_lines(buf, dest_y, height);
 544 }
 545
 546 static void fill_window(ARTISTState *s,
 547                         unsigned int startx, unsigned int starty,
 548                         unsigned int width,  unsigned int height)
 549 {
 550     unsigned int offset;
 551     uint8_t color = artist_get_color(s);
 552     struct vram_buffer *buf;
 553     int x, y;
 554
 555     trace_artist_fill_window(startx, starty, width, height,
 556                              s->image_bitmap_op, s->control_plane);
 557
 558     if (s->control_plane != 0) {
 559         /* We don't support CONTROL_PLANE accesses */
 560         qemu_log_mask(LOG_UNIMP, "%s: CONTROL_PLANE: %08x\n", __func__,
 561                       s->control_plane);
 562         return;
 563     }
 564
 565     if (s->reg_100080 == 0x7d) {
 566         /*
 567          * Not sure what this register really does, but
 568          * 0x7d seems to enable autoincremt of the Y axis
 569          * by the current block move height.
 570          */
 571         height = artist_get_y(s->blockmove_size);
 572         s->vram_start += height;
 573     }
 574
 575     buf = &s->vram_buffer[ARTIST_BUFFER_AP];
 576
 577     for (y = starty; y < starty + height; y++) {
 578         offset = y * s->width;
 579
 580         for (x = startx; x < startx + width; x++) {
 581             artist_rop8(s, buf, offset + x, color);
 582         }
 583     }
 584     artist_invalidate_lines(buf, starty, height);
 585 }
 586
 587 static void draw_line(ARTISTState *s,
 588                       unsigned int x1, unsigned int y1,
 589                       unsigned int x2, unsigned int y2,
 590                       bool update_start, int skip_pix, int max_pix)
 591 {
 592     struct vram_buffer *buf = &s->vram_buffer[ARTIST_BUFFER_AP];
 593     uint8_t color;
 594     int dx, dy, t, e, x, y, incy, diago, horiz;
 595     bool c1;
 596
 597     trace_artist_draw_line(x1, y1, x2, y2);
 598
 599     if ((x1 >= buf->width && x2 >= buf->width) ||
 600         (y1 >= buf->height && y2 >= buf->height)) {
 601         return;
 602     }
 603
 604
 605     if (update_start) {
 606         s->vram_start = (x2 << 16) | y2;
 607     }
 608
 609     if (x2 > x1) {
 610         dx = x2 - x1;
 611     } else {
 612         dx = x1 - x2;
 613     }
 614     if (y2 > y1) {
 615         dy = y2 - y1;
 616     } else {
 617         dy = y1 - y2;
 618     }
 619
 620     c1 = false;
 621     if (dy > dx) {
 622         t = y2;
 623         y2 = x2;
 624         x2 = t;
 625
 626         t = y1;
 627         y1 = x1;
 628         x1 = t;
 629
 630         t = dx;
 631         dx = dy;
 632         dy = t;
 633
 634         c1 = true;
 635     }
 636
 637     if (x1 > x2) {
 638         t = y2;
 639         y2 = y1;
 640         y1 = t;
 641
 642         t = x1;
 643         x1 = x2;
 644         x2 = t;
 645     }
 646
 647     horiz = dy << 1;
 648     diago = (dy - dx) << 1;
 649     e = (dy << 1) - dx;
 650
 651     if (y1 <= y2) {
 652         incy = 1;
 653     } else {
 654         incy = -1;
 655     }
 656     x = x1;
 657     y = y1;
 658     color = artist_get_color(s);
 659
 660     do {
 661         unsigned int ofs;
 662
 663         if (c1) {
 664             ofs = x * s->width + y;
 665         } else {
 666             ofs = y * s->width + x;
 667         }
 668
 669         if (skip_pix > 0) {
 670             skip_pix--;
 671         } else {
 672             artist_rop8(s, buf, ofs, color);
 673         }
 674
 675         if (e > 0) {
 676             y  += incy;
 677             e  += diago;
 678         } else {
 679             e += horiz;
 680         }
 681         x++;
 682     } while (x <= x2 && (max_pix == -1 || --max_pix > 0));
 683     if (c1)
 684         artist_invalidate_lines(buf, x, dy+1);
 685     else
 686         artist_invalidate_lines(buf, y, dx+1);
 687 }
 688
 689 static void draw_line_pattern_start(ARTISTState *s)
 690 {
 691
 692     int startx = artist_get_x(s->vram_start);
 693     int starty = artist_get_y(s->vram_start);
 694     int endx = artist_get_x(s->blockmove_size);
 695     int endy = artist_get_y(s->blockmove_size);
 696     int pstart = s->line_pattern_start >> 16;
 697
 698     draw_line(s, startx, starty, endx, endy, false, -1, pstart);
 699     s->line_pattern_skip = pstart;
 700 }
 701
 702 static void draw_line_pattern_next(ARTISTState *s)
 703 {
 704
 705     int startx = artist_get_x(s->vram_start);
 706     int starty = artist_get_y(s->vram_start);
 707     int endx = artist_get_x(s->blockmove_size);
 708     int endy = artist_get_y(s->blockmove_size);
 709     int line_xy = s->line_xy >> 16;
 710
 711     draw_line(s, startx, starty, endx, endy, false, s->line_pattern_skip,
 712               s->line_pattern_skip + line_xy);
 713     s->line_pattern_skip += line_xy;
 714     s->image_bitmap_op ^= 2;
 715 }
 716
 717 static void draw_line_size(ARTISTState *s, bool update_start)
 718 {
 719
 720     int startx = artist_get_x(s->vram_start);
 721     int starty = artist_get_y(s->vram_start);
 722     int endx = artist_get_x(s->line_size);
 723     int endy = artist_get_y(s->line_size);
 724
 725     draw_line(s, startx, starty, endx, endy, update_start, -1, -1);
 726 }
 727
 728 static void draw_line_xy(ARTISTState *s, bool update_start)
 729 {
 730
 731     int startx = artist_get_x(s->vram_start);
 732     int starty = artist_get_y(s->vram_start);
 733     int sizex = artist_get_x(s->blockmove_size);
 734     int sizey = artist_get_y(s->blockmove_size);
 735     int linexy = s->line_xy >> 16;
 736     int endx, endy;
 737
 738     endx = startx;
 739     endy = starty;
 740
 741     if (sizex > 0) {
 742         endx = startx + linexy;
 743     }
 744
 745     if (sizex < 0) {
 746         endx = startx;
 747         startx -= linexy;
 748     }
 749
 750     if (sizey > 0) {
 751         endy = starty + linexy;
 752     }
 753
 754     if (sizey < 0) {
 755         endy = starty;
 756         starty -= linexy;
 757     }
 758
 759     if (startx < 0) {
 760         startx = 0;
 761     }
 762
 763     if (endx < 0) {
 764         endx = 0;
 765     }
 766
 767     if (starty < 0) {
 768         starty = 0;
 769     }
 770
 771     if (endy < 0) {
 772         endy = 0;
 773     }
 774
 775     draw_line(s, startx, starty, endx, endy, false, -1, -1);
 776 }
 777
 778 static void draw_line_end(ARTISTState *s, bool update_start)
 779 {
 780
 781     int startx = artist_get_x(s->vram_start);
 782     int starty = artist_get_y(s->vram_start);
 783     int endx = artist_get_x(s->line_end);
 784     int endy = artist_get_y(s->line_end);
 785
 786     draw_line(s, startx, starty, endx, endy, update_start, -1, -1);
 787 }
 788
 789 static void font_write16(ARTISTState *s, uint16_t val)
 790 {
 791     struct vram_buffer *buf;
 792     uint32_t color = (s->image_bitmap_op & 2) ? s->fg_color : s->bg_color;
 793     uint16_t mask;
 794     int i;
 795
 796     unsigned int startx = artist_get_x(s->vram_start);
 797     unsigned int starty = artist_get_y(s->vram_start) + s->font_write_pos_y;
 798     unsigned int offset = starty * s->width + startx;
 799
 800     buf = &s->vram_buffer[ARTIST_BUFFER_AP];
 801
 802     if (startx >= buf->width || starty >= buf->height ||
 803         offset + 16 >= buf->size) {
 804         return;
 805     }
 806
 807     for (i = 0; i < 16; i++) {
 808         mask = 1 << (15 - i);
 809         if (val & mask) {
 810             artist_rop8(s, buf, offset + i, color);
 811         } else {
 812             if (!(s->image_bitmap_op & 0x20000000)) {
 813                 artist_rop8(s, buf, offset + i, s->bg_color);
 814             }
 815         }
 816     }
 817     artist_invalidate_lines(buf, starty, 1);
 818 }
 819
 820 static void font_write(ARTISTState *s, uint32_t val)
 821 {
 822     font_write16(s, val >> 16);
 823     if (++s->font_write_pos_y == artist_get_y(s->blockmove_size)) {
 824         s->vram_start += (s->blockmove_size & 0xffff0000);
 825         return;
 826     }
 827
 828     font_write16(s, val & 0xffff);
 829     if (++s->font_write_pos_y == artist_get_y(s->blockmove_size)) {
 830         s->vram_start += (s->blockmove_size & 0xffff0000);
 831         return;
 832     }
 833 }
 834
 835 static void combine_write_reg(hwaddr addr, uint64_t val, int size, void *out)
 836 {
 837     /*
 838      * FIXME: is there a qemu helper for this?
 839      */
 840
 841 #ifndef HOST_WORDS_BIGENDIAN
 842     addr ^= 3;
 843 #endif
 844
 845     switch (size) {
 846     case 1:
 847         *(uint8_t *)(out + (addr & 3)) = val;
 848         break;
 849
 850     case 2:
 851         *(uint16_t *)(out + (addr & 2)) = val;
 852         break;
 853
 854     case 4:
 855         *(uint32_t *)out = val;
 856         break;
 857
 858     default:
 859         qemu_log_mask(LOG_UNIMP, "unsupported write size: %d\n", size);
 860     }
 861 }
 862
 863 static void artist_reg_write(void *opaque, hwaddr addr, uint64_t val,
 864                              unsigned size)
 865 {
 866     ARTISTState *s = opaque;
 867     int width, height;
 868
 869     trace_artist_reg_write(size, addr, artist_reg_name(addr & ~3ULL), val);
 870
 871     switch (addr & ~3ULL) {
 872     case 0x100080:
 873         combine_write_reg(addr, val, size, &s->reg_100080);
 874         break;
 875
 876     case FG_COLOR:
 877         combine_write_reg(addr, val, size, &s->fg_color);
 878         break;
 879
 880     case BG_COLOR:
 881         combine_write_reg(addr, val, size, &s->bg_color);
 882         break;
 883
 884     case VRAM_BITMASK:
 885         combine_write_reg(addr, val, size, &s->vram_bitmask);
 886         break;
 887
 888     case VRAM_WRITE_INCR_Y:
 889         vram_bit_write(s, s->vram_char_y++, false, size, val);
 890         break;
 891
 892     case VRAM_WRITE_INCR_X:
 893     case VRAM_WRITE_INCR_X2:
 894         vram_bit_write(s, s->vram_char_y, true, size, val);
 895         break;
 896
 897     case VRAM_IDX:
 898         combine_write_reg(addr, val, size, &s->vram_pos);
 899         s->vram_char_y = 0;
 900         s->draw_line_pattern = 0;
 901         break;
 902
 903     case VRAM_START:
 904         combine_write_reg(addr, val, size, &s->vram_start);
 905         s->draw_line_pattern = 0;
 906         break;
 907
 908     case VRAM_START_TRIGGER:
 909         combine_write_reg(addr, val, size, &s->vram_start);
 910         fill_window(s, artist_get_x(s->vram_start),
 911                     artist_get_y(s->vram_start),
 912                     artist_get_x(s->blockmove_size),
 913                     artist_get_y(s->blockmove_size));
 914         break;
 915
 916     case VRAM_SIZE_TRIGGER:
 917         combine_write_reg(addr, val, size, &s->vram_size);
 918
 919         if (size == 2 && !(addr & 2)) {
 920             height = artist_get_y(s->blockmove_size);
 921         } else {
 922             height = artist_get_y(s->vram_size);
 923         }
 924
 925         if (size == 2 && (addr & 2)) {
 926             width = artist_get_x(s->blockmove_size);
 927         } else {
 928             width = artist_get_x(s->vram_size);
 929         }
 930
 931         fill_window(s, artist_get_x(s->vram_start),
 932                     artist_get_y(s->vram_start),
 933                     width, height);
 934         break;
 935
 936     case LINE_XY:
 937         combine_write_reg(addr, val, size, &s->line_xy);
 938         if (s->draw_line_pattern) {
 939             draw_line_pattern_next(s);
 940         } else {
 941             draw_line_xy(s, true);
 942         }
 943         break;
 944
 945     case PATTERN_LINE_START:
 946         combine_write_reg(addr, val, size, &s->line_pattern_start);
 947         s->draw_line_pattern = 1;
 948         draw_line_pattern_start(s);
 949         break;
 950
 951     case LINE_SIZE:
 952         combine_write_reg(addr, val, size, &s->line_size);
 953         draw_line_size(s, true);
 954         break;
 955
 956     case LINE_END:
 957         combine_write_reg(addr, val, size, &s->line_end);
 958         draw_line_end(s, true);
 959         break;
 960
 961     case BLOCK_MOVE_SIZE:
 962         combine_write_reg(addr, val, size, &s->blockmove_size);
 963         break;
 964
 965     case BLOCK_MOVE_SOURCE:
 966         combine_write_reg(addr, val, size, &s->blockmove_source);
 967         break;
 968
 969     case BLOCK_MOVE_DEST_TRIGGER:
 970         combine_write_reg(addr, val, size, &s->blockmove_dest);
 971
 972         block_move(s, artist_get_x(s->blockmove_source),
 973                    artist_get_y(s->blockmove_source),
 974                    artist_get_x(s->blockmove_dest),
 975                    artist_get_y(s->blockmove_dest),
 976                    artist_get_x(s->blockmove_size),
 977                    artist_get_y(s->blockmove_size));
 978         break;
 979
 980     case BLOCK_MOVE_SIZE_TRIGGER:
 981         combine_write_reg(addr, val, size, &s->blockmove_size);
 982
 983         block_move(s,
 984                    artist_get_x(s->blockmove_source),
 985                    artist_get_y(s->blockmove_source),
 986                    artist_get_x(s->vram_start),
 987                    artist_get_y(s->vram_start),
 988                    artist_get_x(s->blockmove_size),
 989                    artist_get_y(s->blockmove_size));
 990         break;
 991
 992     case PLANE_MASK:
 993         combine_write_reg(addr, val, size, &s->plane_mask);
 994         break;
 995
 996     case CMAP_BM_ACCESS:
 997         combine_write_reg(addr, val, size, &s->cmap_bm_access);
 998         break;
 999
1000     case DST_BM_ACCESS:
1001         combine_write_reg(addr, val, size, &s->dst_bm_access);
1002         s->cmap_bm_access = 0;
1003         break;
1004
1005     case SRC_BM_ACCESS:
1006         combine_write_reg(addr, val, size, &s->src_bm_access);
1007         s->cmap_bm_access = 0;
1008         break;
1009
1010     case CONTROL_PLANE:
1011         combine_write_reg(addr, val, size, &s->control_plane);
1012         break;
1013
1014     case TRANSFER_DATA:
1015         combine_write_reg(addr, val, size, &s->transfer_data);
1016         break;
1017
1018     case 0x300200:
1019         combine_write_reg(addr, val, size, &s->reg_300200);
1020         break;
1021
1022     case 0x300208:
1023         combine_write_reg(addr, val, size, &s->reg_300208);
1024         break;
1025
1026     case 0x300218:
1027         combine_write_reg(addr, val, size, &s->reg_300218);
1028         break;
1029
1030     case CURSOR_POS:
1031         artist_invalidate_cursor(s);
1032         combine_write_reg(addr, val, size, &s->cursor_pos);
1033         artist_invalidate_cursor(s);
1034         break;
1035
1036     case CURSOR_CTRL:
1037         break;
1038
1039     case IMAGE_BITMAP_OP:
1040         combine_write_reg(addr, val, size, &s->image_bitmap_op);
1041         break;
1042
1043     case FONT_WRITE_INCR_Y:
1044         combine_write_reg(addr, val, size, &s->font_write1);
1045         font_write(s, s->font_write1);
1046         break;
1047
1048     case FONT_WRITE_START:
1049         combine_write_reg(addr, val, size, &s->font_write2);
1050         s->font_write_pos_y = 0;
1051         font_write(s, s->font_write2);
1052         break;
1053
1054     case 300104:
1055         break;
1056
1057     default:
1058         qemu_log_mask(LOG_UNIMP, "%s: unknown register: reg=%08" HWADDR_PRIx
1059                       " val=%08" PRIx64 " size=%d\n",
1060                       __func__, addr, val, size);
1061         break;
1062     }
1063 }
1064
1065 static uint64_t combine_read_reg(hwaddr addr, int size, void *in)
1066 {
1067     /*
1068      * FIXME: is there a qemu helper for this?
1069      */
1070
1071 #ifndef HOST_WORDS_BIGENDIAN
1072     addr ^= 3;
1073 #endif
1074
1075     switch (size) {
1076     case 1:
1077         return *(uint8_t *)(in + (addr & 3));
1078
1079     case 2:
1080         return *(uint16_t *)(in + (addr & 2));
1081
1082     case 4:
1083         return *(uint32_t *)in;
1084
1085     default:
1086         qemu_log_mask(LOG_UNIMP, "unsupported read size: %d\n", size);
1087         return 0;
1088     }
1089 }
1090
1091 static uint64_t artist_reg_read(void *opaque, hwaddr addr, unsigned size)
1092 {
1093     ARTISTState *s = opaque;
1094     uint32_t val = 0;
1095
1096     switch (addr & ~3ULL) {
1097         /* Unknown status registers */
1098     case 0:
1099         break;
1100
1101     case 0x211110:
1102         val = (s->width << 16) | s->height;
1103         if (s->depth == 1) {
1104             val |= 1 << 31;
1105         }
1106         break;
1107
1108     case 0x100000:
1109     case 0x300000:
1110     case 0x300004:
1111     case 0x300308:
1112     case 0x380000:
1113         break;
1114
1115     case 0x300008:
1116     case 0x380008:
1117         /*
1118          * FIFO ready flag. we're not emulating the FIFOs
1119          * so we're always ready
1120          */
1121         val = 0x10;
1122         break;
1123
1124     case 0x300200:
1125         val = s->reg_300200;
1126         break;
1127
1128     case 0x300208:
1129         val = s->reg_300208;
1130         break;
1131
1132     case 0x300218:
1133         val = s->reg_300218;
1134         break;
1135
1136     case 0x30023c:
1137         val = 0xac4ffdac;
1138         break;
1139
1140     case 0x380004:
1141         /* 0x02000000 Buserror */
1142         val = 0x6dc20006;
1143         break;
1144
1145     default:
1146         qemu_log_mask(LOG_UNIMP, "%s: unknown register: %08" HWADDR_PRIx
1147                       " size %d\n", __func__, addr, size);
1148         break;
1149     }
1150     val = combine_read_reg(addr, size, &val);
1151     trace_artist_reg_read(size, addr, artist_reg_name(addr & ~3ULL), val);
1152     return val;
1153 }
1154
1155 static void artist_vram_write(void *opaque, hwaddr addr, uint64_t val,
1156                               unsigned size)
1157 {
1158     ARTISTState *s = opaque;
1159     struct vram_buffer *buf;
1160     unsigned int posy, posx;
1161     unsigned int offset;
1162     trace_artist_vram_write(size, addr, val);
1163
1164     if (s->cmap_bm_access) {
1165         buf = &s->vram_buffer[ARTIST_BUFFER_CMAP];
1166         if (addr + 3 < buf->size) {
1167             *(uint32_t *)(buf->data + addr) = val;
1168         }
1169         return;
1170     }
1171
1172     buf = vram_write_buffer(s);
1173     posy = ADDR_TO_Y(addr >> 2);
1174     posx = ADDR_TO_X(addr >> 2);
1175
1176     if (!buf->size) {
1177         return;
1178     }
1179
1180     if (posy > buf->height || posx > buf->width) {
1181         return;
1182     }
1183
1184     offset = posy * buf->width + posx;
1185     if (offset >= buf->size) {
1186         return;
1187     }
1188
1189     switch (size) {
1190     case 4:
1191         if (offset + 3 < buf->size) {
1192             *(uint32_t *)(buf->data + offset) = be32_to_cpu(val);
1193             memory_region_set_dirty(&buf->mr, offset, 4);
1194         }
1195         break;
1196     case 2:
1197         if (offset + 1 < buf->size) {
1198             *(uint16_t *)(buf->data + offset) = be16_to_cpu(val);
1199             memory_region_set_dirty(&buf->mr, offset, 2);
1200         }
1201         break;
1202     case 1:
1203         if (offset < buf->size) {
1204             *(uint8_t *)(buf->data + offset) = val;
1205             memory_region_set_dirty(&buf->mr, offset, 1);
1206         }
1207         break;
1208     default:
1209         break;
1210     }
1211 }
1212
1213 static uint64_t artist_vram_read(void *opaque, hwaddr addr, unsigned size)
1214 {
1215     ARTISTState *s = opaque;
1216     struct vram_buffer *buf;
1217     uint64_t val;
1218     unsigned int posy, posx;
1219
1220     if (s->cmap_bm_access) {
1221         buf = &s->vram_buffer[ARTIST_BUFFER_CMAP];
1222         val = 0;
1223         if (addr < buf->size && addr + 3 < buf->size) {
1224             val = *(uint32_t *)(buf->data + addr);
1225         }
1226         trace_artist_vram_read(size, addr, 0, 0, val);
1227         return val;
1228     }
1229
1230     buf = vram_read_buffer(s);
1231     if (!buf->size) {
1232         return 0;
1233     }
1234
1235     posy = ADDR_TO_Y(addr >> 2);
1236     posx = ADDR_TO_X(addr >> 2);
1237
1238     if (posy > buf->height || posx > buf->width) {
1239         return 0;
1240     }
1241
1242     val = cpu_to_be32(*(uint32_t *)(buf->data + posy * buf->width + posx));
1243     trace_artist_vram_read(size, addr, posx, posy, val);
1244     return val;
1245 }
1246
1247 static const MemoryRegionOps artist_reg_ops = {
1248     .read = artist_reg_read,
1249     .write = artist_reg_write,
1250     .endianness = DEVICE_NATIVE_ENDIAN,
1251     .impl.min_access_size = 1,
1252     .impl.max_access_size = 4,
1253 };
1254
1255 static const MemoryRegionOps artist_vram_ops = {
1256     .read = artist_vram_read,
1257     .write = artist_vram_write,
1258     .endianness = DEVICE_NATIVE_ENDIAN,
1259     .impl.min_access_size = 1,
1260     .impl.max_access_size = 4,
1261 };
1262
1263 static void artist_draw_cursor(ARTISTState *s)
1264 {
1265     DisplaySurface *surface = qemu_console_surface(s->con);
1266     uint32_t *data = (uint32_t *)surface_data(surface);
1267     struct vram_buffer *cursor0, *cursor1 , *buf;
1268     int cx, cy, cursor_pos_x, cursor_pos_y;
1269
1270     cursor0 = &s->vram_buffer[ARTIST_BUFFER_CURSOR1];
1271     cursor1 = &s->vram_buffer[ARTIST_BUFFER_CURSOR2];
1272     buf = &s->vram_buffer[ARTIST_BUFFER_AP];
1273
1274     artist_get_cursor_pos(s, &cursor_pos_x, &cursor_pos_y);
1275
1276     for (cy = 0; cy < s->cursor_height; cy++) {
1277
1278         for (cx = 0; cx < s->cursor_width; cx++) {
1279
1280             if (cursor_pos_y + cy < 0 ||
1281                 cursor_pos_x + cx < 0 ||
1282                 cursor_pos_y + cy > buf->height - 1 ||
1283                 cursor_pos_x + cx > buf->width) {
1284                 continue;
1285             }
1286
1287             int dstoffset = (cursor_pos_y + cy) * s->width +
1288                 (cursor_pos_x + cx);
1289
1290             if (cursor0->data[cy * cursor0->width + cx]) {
1291                 data[dstoffset] = 0;
1292             } else {
1293                 if (cursor1->data[cy * cursor1->width + cx]) {
1294                     data[dstoffset] = 0xffffff;
1295                 }
1296             }
1297         }
1298     }
1299 }
1300
1301 static void artist_draw_line(void *opaque, uint8_t *d, const uint8_t *src,
1302                              int width, int pitch)
1303 {
1304     ARTISTState *s = ARTIST(opaque);
1305     uint32_t *cmap, *data = (uint32_t *)d;
1306     int x;
1307
1308     cmap = (uint32_t *)(s->vram_buffer[ARTIST_BUFFER_CMAP].data + 0x400);
1309
1310     for (x = 0; x < s->width; x++) {
1311         *data++ = cmap[*src++];
1312     }
1313 }
1314
1315 static void artist_update_display(void *opaque)
1316 {
1317     ARTISTState *s = opaque;
1318     DisplaySurface *surface = qemu_console_surface(s->con);
1319     int first = 0, last;
1320
1321
1322     framebuffer_update_display(surface, &s->fbsection, s->width, s->height,
1323                                s->width, s->width * 4, 0, 0, artist_draw_line,
1324                                s, &first, &last);
1325
1326     artist_draw_cursor(s);
1327
1328     dpy_gfx_update(s->con, 0, 0, s->width, s->height);
1329 }
1330
1331 static void artist_invalidate(void *opaque)
1332 {
1333     ARTISTState *s = ARTIST(opaque);
1334     struct vram_buffer *buf = &s->vram_buffer[ARTIST_BUFFER_AP];
1335     memory_region_set_dirty(&buf->mr, 0, buf->size);
1336 }
1337
1338 static const GraphicHwOps artist_ops = {
1339     .invalidate  = artist_invalidate,
1340     .gfx_update = artist_update_display,
1341 };
1342
1343 static void artist_initfn(Object *obj)
1344 {
1345     SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
1346     ARTISTState *s = ARTIST(obj);
1347
1348     memory_region_init_io(&s->reg, obj, &artist_reg_ops, s, "artist.reg",
1349                           4 * MiB);
1350     memory_region_init_io(&s->vram_mem, obj, &artist_vram_ops, s, "artist.vram",
1351                           8 * MiB);
1352     sysbus_init_mmio(sbd, &s->reg);
1353     sysbus_init_mmio(sbd, &s->vram_mem);
1354 }
1355
1356 static void artist_create_buffer(ARTISTState *s, const char *name,
1357                                  hwaddr *offset, unsigned int idx,
1358                                  int width, int height)
1359 {
1360     struct vram_buffer *buf = s->vram_buffer + idx;
1361
1362     memory_region_init_ram(&buf->mr, NULL, name, width * height,
1363                            &error_fatal);
1364     memory_region_add_subregion_overlap(&s->mem_as_root, *offset, &buf->mr, 0);
1365
1366     buf->data = memory_region_get_ram_ptr(&buf->mr);
1367     buf->size = height * width;
1368     buf->width = width;
1369     buf->height = height;
1370
1371     *offset += buf->size;
1372 }
1373
1374 static void artist_realizefn(DeviceState *dev, Error **errp)
1375 {
1376     ARTISTState *s = ARTIST(dev);
1377     struct vram_buffer *buf;
1378     hwaddr offset = 0;
1379
1380     if (s->width > 2048 || s->height > 2048) {
1381         error_report("artist: screen size can not exceed 2048 x 2048 pixel.");
1382         s->width = MIN(s->width, 2048);
1383         s->height = MIN(s->height, 2048);
1384     }
1385
1386     if (s->width < 640 || s->height < 480) {
1387         error_report("artist: minimum screen size is 640 x 480 pixel.");
1388         s->width = MAX(s->width, 640);
1389         s->height = MAX(s->height, 480);
1390     }
1391
1392     memory_region_init(&s->mem_as_root, OBJECT(dev), "artist", ~0ull);
1393     address_space_init(&s->as, &s->mem_as_root, "artist");
1394
1395     artist_create_buffer(s, "cmap", &offset, ARTIST_BUFFER_CMAP, 2048, 4);
1396     artist_create_buffer(s, "ap", &offset, ARTIST_BUFFER_AP,
1397                          s->width, s->height);
1398     artist_create_buffer(s, "cursor1", &offset, ARTIST_BUFFER_CURSOR1, 64, 64);
1399     artist_create_buffer(s, "cursor2", &offset, ARTIST_BUFFER_CURSOR2, 64, 64);
1400     artist_create_buffer(s, "attribute", &offset, ARTIST_BUFFER_ATTRIBUTE,
1401                          64, 64);
1402
1403     buf = &s->vram_buffer[ARTIST_BUFFER_AP];
1404     framebuffer_update_memory_section(&s->fbsection, &buf->mr, 0,
1405                                       buf->width, buf->height);
1406     /*
1407      * no idea whether the cursor is fixed size or not, so assume 32x32 which
1408      * seems sufficient for HP-UX X11.
1409      */
1410     s->cursor_height = 32;
1411     s->cursor_width = 32;
1412
1413     s->con = graphic_console_init(dev, 0, &artist_ops, s);
1414     qemu_console_resize(s->con, s->width, s->height);
1415 }
1416
1417 static int vmstate_artist_post_load(void *opaque, int version_id)
1418 {
1419     artist_invalidate(opaque);
1420     return 0;
1421 }
1422
1423 static const VMStateDescription vmstate_artist = {
1424     .name = "artist",
1425     .version_id = 1,
1426     .minimum_version_id = 1,
1427     .post_load = vmstate_artist_post_load,
1428     .fields = (VMStateField[]) {
1429         VMSTATE_UINT16(height, ARTISTState),
1430         VMSTATE_UINT16(width, ARTISTState),
1431         VMSTATE_UINT16(depth, ARTISTState),
1432         VMSTATE_UINT32(fg_color, ARTISTState),
1433         VMSTATE_UINT32(bg_color, ARTISTState),
1434         VMSTATE_UINT32(vram_char_y, ARTISTState),
1435         VMSTATE_UINT32(vram_bitmask, ARTISTState),
1436         VMSTATE_UINT32(vram_start, ARTISTState),
1437         VMSTATE_UINT32(vram_pos, ARTISTState),
1438         VMSTATE_UINT32(vram_size, ARTISTState),
1439         VMSTATE_UINT32(blockmove_source, ARTISTState),
1440         VMSTATE_UINT32(blockmove_dest, ARTISTState),
1441         VMSTATE_UINT32(blockmove_size, ARTISTState),
1442         VMSTATE_UINT32(line_size, ARTISTState),
1443         VMSTATE_UINT32(line_end, ARTISTState),
1444         VMSTATE_UINT32(line_xy, ARTISTState),
1445         VMSTATE_UINT32(cursor_pos, ARTISTState),
1446         VMSTATE_UINT32(cursor_height, ARTISTState),
1447         VMSTATE_UINT32(cursor_width, ARTISTState),
1448         VMSTATE_UINT32(plane_mask, ARTISTState),
1449         VMSTATE_UINT32(reg_100080, ARTISTState),
1450         VMSTATE_UINT32(reg_300200, ARTISTState),
1451         VMSTATE_UINT32(reg_300208, ARTISTState),
1452         VMSTATE_UINT32(reg_300218, ARTISTState),
1453         VMSTATE_UINT32(cmap_bm_access, ARTISTState),
1454         VMSTATE_UINT32(dst_bm_access, ARTISTState),
1455         VMSTATE_UINT32(src_bm_access, ARTISTState),
1456         VMSTATE_UINT32(control_plane, ARTISTState),
1457         VMSTATE_UINT32(transfer_data, ARTISTState),
1458         VMSTATE_UINT32(image_bitmap_op, ARTISTState),
1459         VMSTATE_UINT32(font_write1, ARTISTState),
1460         VMSTATE_UINT32(font_write2, ARTISTState),
1461         VMSTATE_UINT32(font_write_pos_y, ARTISTState),
1462         VMSTATE_END_OF_LIST()
1463     }
1464 };
1465
1466 static Property artist_properties[] = {
1467     DEFINE_PROP_UINT16("width",        ARTISTState, width, 1280),
1468     DEFINE_PROP_UINT16("height",       ARTISTState, height, 1024),
1469     DEFINE_PROP_UINT16("depth",        ARTISTState, depth, 8),
1470     DEFINE_PROP_END_OF_LIST(),
1471 };
1472
1473 static void artist_reset(DeviceState *qdev)
1474 {
1475 }
1476
1477 static void artist_class_init(ObjectClass *klass, void *data)
1478 {
1479     DeviceClass *dc = DEVICE_CLASS(klass);
1480
1481     dc->realize = artist_realizefn;
1482     dc->vmsd = &vmstate_artist;
1483     dc->reset = artist_reset;
1484     device_class_set_props(dc, artist_properties);
1485 }
1486
1487 static const TypeInfo artist_info = {
1488     .name          = TYPE_ARTIST,
1489     .parent        = TYPE_SYS_BUS_DEVICE,
1490     .instance_size = sizeof(ARTISTState),
1491     .instance_init = artist_initfn,
1492     .class_init    = artist_class_init,
1493 };
1494
1495 static void artist_register_types(void)
1496 {
1497     type_register_static(&artist_info);
1498 }
1499
1500 type_init(artist_register_types)