File:  [Qemu by Fabrice Bellard] / qemu / console.c
Revision 1.1.1.13 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 19:34:12 2018 UTC (3 years, 5 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu1101, HEAD
qemu 1.1.1

    1: /*
    2:  * QEMU graphical console
    3:  *
    4:  * Copyright (c) 2004 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: #include "qemu-common.h"
   25: #include "console.h"
   26: #include "qemu-timer.h"
   27: 
   28: //#define DEBUG_CONSOLE
   29: #define DEFAULT_BACKSCROLL 512
   30: #define MAX_CONSOLES 12
   31: 
   32: #define QEMU_RGBA(r, g, b, a) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
   33: #define QEMU_RGB(r, g, b) QEMU_RGBA(r, g, b, 0xff)
   34: 
   35: typedef struct TextAttributes {
   36:     uint8_t fgcol:4;
   37:     uint8_t bgcol:4;
   38:     uint8_t bold:1;
   39:     uint8_t uline:1;
   40:     uint8_t blink:1;
   41:     uint8_t invers:1;
   42:     uint8_t unvisible:1;
   43: } TextAttributes;
   44: 
   45: typedef struct TextCell {
   46:     uint8_t ch;
   47:     TextAttributes t_attrib;
   48: } TextCell;
   49: 
   50: #define MAX_ESC_PARAMS 3
   51: 
   52: enum TTYState {
   53:     TTY_STATE_NORM,
   54:     TTY_STATE_ESC,
   55:     TTY_STATE_CSI,
   56: };
   57: 
   58: typedef struct QEMUFIFO {
   59:     uint8_t *buf;
   60:     int buf_size;
   61:     int count, wptr, rptr;
   62: } QEMUFIFO;
   63: 
   64: static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
   65: {
   66:     int l, len;
   67: 
   68:     l = f->buf_size - f->count;
   69:     if (len1 > l)
   70:         len1 = l;
   71:     len = len1;
   72:     while (len > 0) {
   73:         l = f->buf_size - f->wptr;
   74:         if (l > len)
   75:             l = len;
   76:         memcpy(f->buf + f->wptr, buf, l);
   77:         f->wptr += l;
   78:         if (f->wptr >= f->buf_size)
   79:             f->wptr = 0;
   80:         buf += l;
   81:         len -= l;
   82:     }
   83:     f->count += len1;
   84:     return len1;
   85: }
   86: 
   87: static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
   88: {
   89:     int l, len;
   90: 
   91:     if (len1 > f->count)
   92:         len1 = f->count;
   93:     len = len1;
   94:     while (len > 0) {
   95:         l = f->buf_size - f->rptr;
   96:         if (l > len)
   97:             l = len;
   98:         memcpy(buf, f->buf + f->rptr, l);
   99:         f->rptr += l;
  100:         if (f->rptr >= f->buf_size)
  101:             f->rptr = 0;
  102:         buf += l;
  103:         len -= l;
  104:     }
  105:     f->count -= len1;
  106:     return len1;
  107: }
  108: 
  109: typedef enum {
  110:     GRAPHIC_CONSOLE,
  111:     TEXT_CONSOLE,
  112:     TEXT_CONSOLE_FIXED_SIZE
  113: } console_type_t;
  114: 
  115: /* ??? This is mis-named.
  116:    It is used for both text and graphical consoles.  */
  117: struct TextConsole {
  118:     int index;
  119:     console_type_t console_type;
  120:     DisplayState *ds;
  121:     /* Graphic console state.  */
  122:     vga_hw_update_ptr hw_update;
  123:     vga_hw_invalidate_ptr hw_invalidate;
  124:     vga_hw_screen_dump_ptr hw_screen_dump;
  125:     vga_hw_text_update_ptr hw_text_update;
  126:     void *hw;
  127: 
  128:     int g_width, g_height;
  129:     int width;
  130:     int height;
  131:     int total_height;
  132:     int backscroll_height;
  133:     int x, y;
  134:     int x_saved, y_saved;
  135:     int y_displayed;
  136:     int y_base;
  137:     TextAttributes t_attrib_default; /* default text attributes */
  138:     TextAttributes t_attrib; /* currently active text attributes */
  139:     TextCell *cells;
  140:     int text_x[2], text_y[2], cursor_invalidate;
  141:     int echo;
  142: 
  143:     int update_x0;
  144:     int update_y0;
  145:     int update_x1;
  146:     int update_y1;
  147: 
  148:     enum TTYState state;
  149:     int esc_params[MAX_ESC_PARAMS];
  150:     int nb_esc_params;
  151: 
  152:     CharDriverState *chr;
  153:     /* fifo for key pressed */
  154:     QEMUFIFO out_fifo;
  155:     uint8_t out_fifo_buf[16];
  156:     QEMUTimer *kbd_timer;
  157: };
  158: 
  159: static DisplayState *display_state;
  160: static TextConsole *active_console;
  161: static TextConsole *consoles[MAX_CONSOLES];
  162: static int nb_consoles = 0;
  163: 
  164: void vga_hw_update(void)
  165: {
  166:     if (active_console && active_console->hw_update)
  167:         active_console->hw_update(active_console->hw);
  168: }
  169: 
  170: void vga_hw_invalidate(void)
  171: {
  172:     if (active_console && active_console->hw_invalidate)
  173:         active_console->hw_invalidate(active_console->hw);
  174: }
  175: 
  176: void vga_hw_screen_dump(const char *filename)
  177: {
  178:     TextConsole *previous_active_console;
  179:     bool cswitch;
  180: 
  181:     previous_active_console = active_console;
  182:     cswitch = previous_active_console && previous_active_console->index != 0;
  183: 
  184:     /* There is currently no way of specifying which screen we want to dump,
  185:        so always dump the first one.  */
  186:     if (cswitch) {
  187:         console_select(0);
  188:     }
  189:     if (consoles[0] && consoles[0]->hw_screen_dump) {
  190:         consoles[0]->hw_screen_dump(consoles[0]->hw, filename, cswitch);
  191:     } else {
  192:         error_report("screen dump not implemented");
  193:     }
  194: 
  195:     if (cswitch) {
  196:         console_select(previous_active_console->index);
  197:     }
  198: }
  199: 
  200: void vga_hw_text_update(console_ch_t *chardata)
  201: {
  202:     if (active_console && active_console->hw_text_update)
  203:         active_console->hw_text_update(active_console->hw, chardata);
  204: }
  205: 
  206: /* convert a RGBA color to a color index usable in graphic primitives */
  207: static unsigned int vga_get_color(DisplayState *ds, unsigned int rgba)
  208: {
  209:     unsigned int r, g, b, color;
  210: 
  211:     switch(ds_get_bits_per_pixel(ds)) {
  212: #if 0
  213:     case 8:
  214:         r = (rgba >> 16) & 0xff;
  215:         g = (rgba >> 8) & 0xff;
  216:         b = (rgba) & 0xff;
  217:         color = (rgb_to_index[r] * 6 * 6) +
  218:             (rgb_to_index[g] * 6) +
  219:             (rgb_to_index[b]);
  220:         break;
  221: #endif
  222:     case 15:
  223:         r = (rgba >> 16) & 0xff;
  224:         g = (rgba >> 8) & 0xff;
  225:         b = (rgba) & 0xff;
  226:         color = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3);
  227:         break;
  228:     case 16:
  229:         r = (rgba >> 16) & 0xff;
  230:         g = (rgba >> 8) & 0xff;
  231:         b = (rgba) & 0xff;
  232:         color = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
  233:         break;
  234:     case 32:
  235:     default:
  236:         color = rgba;
  237:         break;
  238:     }
  239:     return color;
  240: }
  241: 
  242: static void vga_fill_rect (DisplayState *ds,
  243:                            int posx, int posy, int width, int height, uint32_t color)
  244: {
  245:     uint8_t *d, *d1;
  246:     int x, y, bpp;
  247: 
  248:     bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
  249:     d1 = ds_get_data(ds) +
  250:         ds_get_linesize(ds) * posy + bpp * posx;
  251:     for (y = 0; y < height; y++) {
  252:         d = d1;
  253:         switch(bpp) {
  254:         case 1:
  255:             for (x = 0; x < width; x++) {
  256:                 *((uint8_t *)d) = color;
  257:                 d++;
  258:             }
  259:             break;
  260:         case 2:
  261:             for (x = 0; x < width; x++) {
  262:                 *((uint16_t *)d) = color;
  263:                 d += 2;
  264:             }
  265:             break;
  266:         case 4:
  267:             for (x = 0; x < width; x++) {
  268:                 *((uint32_t *)d) = color;
  269:                 d += 4;
  270:             }
  271:             break;
  272:         }
  273:         d1 += ds_get_linesize(ds);
  274:     }
  275: }
  276: 
  277: /* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
  278: static void vga_bitblt(DisplayState *ds, int xs, int ys, int xd, int yd, int w, int h)
  279: {
  280:     const uint8_t *s;
  281:     uint8_t *d;
  282:     int wb, y, bpp;
  283: 
  284:     bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
  285:     wb = w * bpp;
  286:     if (yd <= ys) {
  287:         s = ds_get_data(ds) +
  288:             ds_get_linesize(ds) * ys + bpp * xs;
  289:         d = ds_get_data(ds) +
  290:             ds_get_linesize(ds) * yd + bpp * xd;
  291:         for (y = 0; y < h; y++) {
  292:             memmove(d, s, wb);
  293:             d += ds_get_linesize(ds);
  294:             s += ds_get_linesize(ds);
  295:         }
  296:     } else {
  297:         s = ds_get_data(ds) +
  298:             ds_get_linesize(ds) * (ys + h - 1) + bpp * xs;
  299:         d = ds_get_data(ds) +
  300:             ds_get_linesize(ds) * (yd + h - 1) + bpp * xd;
  301:        for (y = 0; y < h; y++) {
  302:             memmove(d, s, wb);
  303:             d -= ds_get_linesize(ds);
  304:             s -= ds_get_linesize(ds);
  305:         }
  306:     }
  307: }
  308: 
  309: /***********************************************************/
  310: /* basic char display */
  311: 
  312: #define FONT_HEIGHT 16
  313: #define FONT_WIDTH 8
  314: 
  315: #include "vgafont.h"
  316: 
  317: #define cbswap_32(__x) \
  318: ((uint32_t)( \
  319: 		(((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \
  320: 		(((uint32_t)(__x) & (uint32_t)0x0000ff00UL) <<  8) | \
  321: 		(((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >>  8) | \
  322: 		(((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) ))
  323: 
  324: #ifdef HOST_WORDS_BIGENDIAN
  325: #define PAT(x) x
  326: #else
  327: #define PAT(x) cbswap_32(x)
  328: #endif
  329: 
  330: static const uint32_t dmask16[16] = {
  331:     PAT(0x00000000),
  332:     PAT(0x000000ff),
  333:     PAT(0x0000ff00),
  334:     PAT(0x0000ffff),
  335:     PAT(0x00ff0000),
  336:     PAT(0x00ff00ff),
  337:     PAT(0x00ffff00),
  338:     PAT(0x00ffffff),
  339:     PAT(0xff000000),
  340:     PAT(0xff0000ff),
  341:     PAT(0xff00ff00),
  342:     PAT(0xff00ffff),
  343:     PAT(0xffff0000),
  344:     PAT(0xffff00ff),
  345:     PAT(0xffffff00),
  346:     PAT(0xffffffff),
  347: };
  348: 
  349: static const uint32_t dmask4[4] = {
  350:     PAT(0x00000000),
  351:     PAT(0x0000ffff),
  352:     PAT(0xffff0000),
  353:     PAT(0xffffffff),
  354: };
  355: 
  356: static uint32_t color_table[2][8];
  357: 
  358: #ifndef CONFIG_CURSES
  359: enum color_names {
  360:     COLOR_BLACK   = 0,
  361:     COLOR_RED     = 1,
  362:     COLOR_GREEN   = 2,
  363:     COLOR_YELLOW  = 3,
  364:     COLOR_BLUE    = 4,
  365:     COLOR_MAGENTA = 5,
  366:     COLOR_CYAN    = 6,
  367:     COLOR_WHITE   = 7
  368: };
  369: #endif
  370: 
  371: static const uint32_t color_table_rgb[2][8] = {
  372:     {   /* dark */
  373:         QEMU_RGB(0x00, 0x00, 0x00),  /* black */
  374:         QEMU_RGB(0xaa, 0x00, 0x00),  /* red */
  375:         QEMU_RGB(0x00, 0xaa, 0x00),  /* green */
  376:         QEMU_RGB(0xaa, 0xaa, 0x00),  /* yellow */
  377:         QEMU_RGB(0x00, 0x00, 0xaa),  /* blue */
  378:         QEMU_RGB(0xaa, 0x00, 0xaa),  /* magenta */
  379:         QEMU_RGB(0x00, 0xaa, 0xaa),  /* cyan */
  380:         QEMU_RGB(0xaa, 0xaa, 0xaa),  /* white */
  381:     },
  382:     {   /* bright */
  383:         QEMU_RGB(0x00, 0x00, 0x00),  /* black */
  384:         QEMU_RGB(0xff, 0x00, 0x00),  /* red */
  385:         QEMU_RGB(0x00, 0xff, 0x00),  /* green */
  386:         QEMU_RGB(0xff, 0xff, 0x00),  /* yellow */
  387:         QEMU_RGB(0x00, 0x00, 0xff),  /* blue */
  388:         QEMU_RGB(0xff, 0x00, 0xff),  /* magenta */
  389:         QEMU_RGB(0x00, 0xff, 0xff),  /* cyan */
  390:         QEMU_RGB(0xff, 0xff, 0xff),  /* white */
  391:     }
  392: };
  393: 
  394: static inline unsigned int col_expand(DisplayState *ds, unsigned int col)
  395: {
  396:     switch(ds_get_bits_per_pixel(ds)) {
  397:     case 8:
  398:         col |= col << 8;
  399:         col |= col << 16;
  400:         break;
  401:     case 15:
  402:     case 16:
  403:         col |= col << 16;
  404:         break;
  405:     default:
  406:         break;
  407:     }
  408: 
  409:     return col;
  410: }
  411: #ifdef DEBUG_CONSOLE
  412: static void console_print_text_attributes(TextAttributes *t_attrib, char ch)
  413: {
  414:     if (t_attrib->bold) {
  415:         printf("b");
  416:     } else {
  417:         printf(" ");
  418:     }
  419:     if (t_attrib->uline) {
  420:         printf("u");
  421:     } else {
  422:         printf(" ");
  423:     }
  424:     if (t_attrib->blink) {
  425:         printf("l");
  426:     } else {
  427:         printf(" ");
  428:     }
  429:     if (t_attrib->invers) {
  430:         printf("i");
  431:     } else {
  432:         printf(" ");
  433:     }
  434:     if (t_attrib->unvisible) {
  435:         printf("n");
  436:     } else {
  437:         printf(" ");
  438:     }
  439: 
  440:     printf(" fg: %d bg: %d ch:'%2X' '%c'\n", t_attrib->fgcol, t_attrib->bgcol, ch, ch);
  441: }
  442: #endif
  443: 
  444: static void vga_putcharxy(DisplayState *ds, int x, int y, int ch,
  445:                           TextAttributes *t_attrib)
  446: {
  447:     uint8_t *d;
  448:     const uint8_t *font_ptr;
  449:     unsigned int font_data, linesize, xorcol, bpp;
  450:     int i;
  451:     unsigned int fgcol, bgcol;
  452: 
  453: #ifdef DEBUG_CONSOLE
  454:     printf("x: %2i y: %2i", x, y);
  455:     console_print_text_attributes(t_attrib, ch);
  456: #endif
  457: 
  458:     if (t_attrib->invers) {
  459:         bgcol = color_table[t_attrib->bold][t_attrib->fgcol];
  460:         fgcol = color_table[t_attrib->bold][t_attrib->bgcol];
  461:     } else {
  462:         fgcol = color_table[t_attrib->bold][t_attrib->fgcol];
  463:         bgcol = color_table[t_attrib->bold][t_attrib->bgcol];
  464:     }
  465: 
  466:     bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
  467:     d = ds_get_data(ds) +
  468:         ds_get_linesize(ds) * y * FONT_HEIGHT + bpp * x * FONT_WIDTH;
  469:     linesize = ds_get_linesize(ds);
  470:     font_ptr = vgafont16 + FONT_HEIGHT * ch;
  471:     xorcol = bgcol ^ fgcol;
  472:     switch(ds_get_bits_per_pixel(ds)) {
  473:     case 8:
  474:         for(i = 0; i < FONT_HEIGHT; i++) {
  475:             font_data = *font_ptr++;
  476:             if (t_attrib->uline
  477:                 && ((i == FONT_HEIGHT - 2) || (i == FONT_HEIGHT - 3))) {
  478:                 font_data = 0xFF;
  479:             }
  480:             ((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol;
  481:             ((uint32_t *)d)[1] = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
  482:             d += linesize;
  483:         }
  484:         break;
  485:     case 16:
  486:     case 15:
  487:         for(i = 0; i < FONT_HEIGHT; i++) {
  488:             font_data = *font_ptr++;
  489:             if (t_attrib->uline
  490:                 && ((i == FONT_HEIGHT - 2) || (i == FONT_HEIGHT - 3))) {
  491:                 font_data = 0xFF;
  492:             }
  493:             ((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol;
  494:             ((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol;
  495:             ((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol;
  496:             ((uint32_t *)d)[3] = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
  497:             d += linesize;
  498:         }
  499:         break;
  500:     case 32:
  501:         for(i = 0; i < FONT_HEIGHT; i++) {
  502:             font_data = *font_ptr++;
  503:             if (t_attrib->uline && ((i == FONT_HEIGHT - 2) || (i == FONT_HEIGHT - 3))) {
  504:                 font_data = 0xFF;
  505:             }
  506:             ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
  507:             ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
  508:             ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
  509:             ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
  510:             ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
  511:             ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
  512:             ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
  513:             ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
  514:             d += linesize;
  515:         }
  516:         break;
  517:     }
  518: }
  519: 
  520: static void text_console_resize(TextConsole *s)
  521: {
  522:     TextCell *cells, *c, *c1;
  523:     int w1, x, y, last_width;
  524: 
  525:     last_width = s->width;
  526:     s->width = s->g_width / FONT_WIDTH;
  527:     s->height = s->g_height / FONT_HEIGHT;
  528: 
  529:     w1 = last_width;
  530:     if (s->width < w1)
  531:         w1 = s->width;
  532: 
  533:     cells = g_malloc(s->width * s->total_height * sizeof(TextCell));
  534:     for(y = 0; y < s->total_height; y++) {
  535:         c = &cells[y * s->width];
  536:         if (w1 > 0) {
  537:             c1 = &s->cells[y * last_width];
  538:             for(x = 0; x < w1; x++) {
  539:                 *c++ = *c1++;
  540:             }
  541:         }
  542:         for(x = w1; x < s->width; x++) {
  543:             c->ch = ' ';
  544:             c->t_attrib = s->t_attrib_default;
  545:             c++;
  546:         }
  547:     }
  548:     g_free(s->cells);
  549:     s->cells = cells;
  550: }
  551: 
  552: static inline void text_update_xy(TextConsole *s, int x, int y)
  553: {
  554:     s->text_x[0] = MIN(s->text_x[0], x);
  555:     s->text_x[1] = MAX(s->text_x[1], x);
  556:     s->text_y[0] = MIN(s->text_y[0], y);
  557:     s->text_y[1] = MAX(s->text_y[1], y);
  558: }
  559: 
  560: static void invalidate_xy(TextConsole *s, int x, int y)
  561: {
  562:     if (s->update_x0 > x * FONT_WIDTH)
  563:         s->update_x0 = x * FONT_WIDTH;
  564:     if (s->update_y0 > y * FONT_HEIGHT)
  565:         s->update_y0 = y * FONT_HEIGHT;
  566:     if (s->update_x1 < (x + 1) * FONT_WIDTH)
  567:         s->update_x1 = (x + 1) * FONT_WIDTH;
  568:     if (s->update_y1 < (y + 1) * FONT_HEIGHT)
  569:         s->update_y1 = (y + 1) * FONT_HEIGHT;
  570: }
  571: 
  572: static void update_xy(TextConsole *s, int x, int y)
  573: {
  574:     TextCell *c;
  575:     int y1, y2;
  576: 
  577:     if (s == active_console) {
  578:         if (!ds_get_bits_per_pixel(s->ds)) {
  579:             text_update_xy(s, x, y);
  580:             return;
  581:         }
  582: 
  583:         y1 = (s->y_base + y) % s->total_height;
  584:         y2 = y1 - s->y_displayed;
  585:         if (y2 < 0)
  586:             y2 += s->total_height;
  587:         if (y2 < s->height) {
  588:             c = &s->cells[y1 * s->width + x];
  589:             vga_putcharxy(s->ds, x, y2, c->ch,
  590:                           &(c->t_attrib));
  591:             invalidate_xy(s, x, y2);
  592:         }
  593:     }
  594: }
  595: 
  596: static void console_show_cursor(TextConsole *s, int show)
  597: {
  598:     TextCell *c;
  599:     int y, y1;
  600: 
  601:     if (s == active_console) {
  602:         int x = s->x;
  603: 
  604:         if (!ds_get_bits_per_pixel(s->ds)) {
  605:             s->cursor_invalidate = 1;
  606:             return;
  607:         }
  608: 
  609:         if (x >= s->width) {
  610:             x = s->width - 1;
  611:         }
  612:         y1 = (s->y_base + s->y) % s->total_height;
  613:         y = y1 - s->y_displayed;
  614:         if (y < 0)
  615:             y += s->total_height;
  616:         if (y < s->height) {
  617:             c = &s->cells[y1 * s->width + x];
  618:             if (show) {
  619:                 TextAttributes t_attrib = s->t_attrib_default;
  620:                 t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
  621:                 vga_putcharxy(s->ds, x, y, c->ch, &t_attrib);
  622:             } else {
  623:                 vga_putcharxy(s->ds, x, y, c->ch, &(c->t_attrib));
  624:             }
  625:             invalidate_xy(s, x, y);
  626:         }
  627:     }
  628: }
  629: 
  630: static void console_refresh(TextConsole *s)
  631: {
  632:     TextCell *c;
  633:     int x, y, y1;
  634: 
  635:     if (s != active_console)
  636:         return;
  637:     if (!ds_get_bits_per_pixel(s->ds)) {
  638:         s->text_x[0] = 0;
  639:         s->text_y[0] = 0;
  640:         s->text_x[1] = s->width - 1;
  641:         s->text_y[1] = s->height - 1;
  642:         s->cursor_invalidate = 1;
  643:         return;
  644:     }
  645: 
  646:     vga_fill_rect(s->ds, 0, 0, ds_get_width(s->ds), ds_get_height(s->ds),
  647:                   color_table[0][COLOR_BLACK]);
  648:     y1 = s->y_displayed;
  649:     for(y = 0; y < s->height; y++) {
  650:         c = s->cells + y1 * s->width;
  651:         for(x = 0; x < s->width; x++) {
  652:             vga_putcharxy(s->ds, x, y, c->ch,
  653:                           &(c->t_attrib));
  654:             c++;
  655:         }
  656:         if (++y1 == s->total_height)
  657:             y1 = 0;
  658:     }
  659:     console_show_cursor(s, 1);
  660:     dpy_update(s->ds, 0, 0, ds_get_width(s->ds), ds_get_height(s->ds));
  661: }
  662: 
  663: static void console_scroll(int ydelta)
  664: {
  665:     TextConsole *s;
  666:     int i, y1;
  667: 
  668:     s = active_console;
  669:     if (!s || (s->console_type == GRAPHIC_CONSOLE))
  670:         return;
  671: 
  672:     if (ydelta > 0) {
  673:         for(i = 0; i < ydelta; i++) {
  674:             if (s->y_displayed == s->y_base)
  675:                 break;
  676:             if (++s->y_displayed == s->total_height)
  677:                 s->y_displayed = 0;
  678:         }
  679:     } else {
  680:         ydelta = -ydelta;
  681:         i = s->backscroll_height;
  682:         if (i > s->total_height - s->height)
  683:             i = s->total_height - s->height;
  684:         y1 = s->y_base - i;
  685:         if (y1 < 0)
  686:             y1 += s->total_height;
  687:         for(i = 0; i < ydelta; i++) {
  688:             if (s->y_displayed == y1)
  689:                 break;
  690:             if (--s->y_displayed < 0)
  691:                 s->y_displayed = s->total_height - 1;
  692:         }
  693:     }
  694:     console_refresh(s);
  695: }
  696: 
  697: static void console_put_lf(TextConsole *s)
  698: {
  699:     TextCell *c;
  700:     int x, y1;
  701: 
  702:     s->y++;
  703:     if (s->y >= s->height) {
  704:         s->y = s->height - 1;
  705: 
  706:         if (s->y_displayed == s->y_base) {
  707:             if (++s->y_displayed == s->total_height)
  708:                 s->y_displayed = 0;
  709:         }
  710:         if (++s->y_base == s->total_height)
  711:             s->y_base = 0;
  712:         if (s->backscroll_height < s->total_height)
  713:             s->backscroll_height++;
  714:         y1 = (s->y_base + s->height - 1) % s->total_height;
  715:         c = &s->cells[y1 * s->width];
  716:         for(x = 0; x < s->width; x++) {
  717:             c->ch = ' ';
  718:             c->t_attrib = s->t_attrib_default;
  719:             c++;
  720:         }
  721:         if (s == active_console && s->y_displayed == s->y_base) {
  722:             if (!ds_get_bits_per_pixel(s->ds)) {
  723:                 s->text_x[0] = 0;
  724:                 s->text_y[0] = 0;
  725:                 s->text_x[1] = s->width - 1;
  726:                 s->text_y[1] = s->height - 1;
  727:                 return;
  728:             }
  729: 
  730:             vga_bitblt(s->ds, 0, FONT_HEIGHT, 0, 0,
  731:                        s->width * FONT_WIDTH,
  732:                        (s->height - 1) * FONT_HEIGHT);
  733:             vga_fill_rect(s->ds, 0, (s->height - 1) * FONT_HEIGHT,
  734:                           s->width * FONT_WIDTH, FONT_HEIGHT,
  735:                           color_table[0][s->t_attrib_default.bgcol]);
  736:             s->update_x0 = 0;
  737:             s->update_y0 = 0;
  738:             s->update_x1 = s->width * FONT_WIDTH;
  739:             s->update_y1 = s->height * FONT_HEIGHT;
  740:         }
  741:     }
  742: }
  743: 
  744: /* Set console attributes depending on the current escape codes.
  745:  * NOTE: I know this code is not very efficient (checking every color for it
  746:  * self) but it is more readable and better maintainable.
  747:  */
  748: static void console_handle_escape(TextConsole *s)
  749: {
  750:     int i;
  751: 
  752:     for (i=0; i<s->nb_esc_params; i++) {
  753:         switch (s->esc_params[i]) {
  754:             case 0: /* reset all console attributes to default */
  755:                 s->t_attrib = s->t_attrib_default;
  756:                 break;
  757:             case 1:
  758:                 s->t_attrib.bold = 1;
  759:                 break;
  760:             case 4:
  761:                 s->t_attrib.uline = 1;
  762:                 break;
  763:             case 5:
  764:                 s->t_attrib.blink = 1;
  765:                 break;
  766:             case 7:
  767:                 s->t_attrib.invers = 1;
  768:                 break;
  769:             case 8:
  770:                 s->t_attrib.unvisible = 1;
  771:                 break;
  772:             case 22:
  773:                 s->t_attrib.bold = 0;
  774:                 break;
  775:             case 24:
  776:                 s->t_attrib.uline = 0;
  777:                 break;
  778:             case 25:
  779:                 s->t_attrib.blink = 0;
  780:                 break;
  781:             case 27:
  782:                 s->t_attrib.invers = 0;
  783:                 break;
  784:             case 28:
  785:                 s->t_attrib.unvisible = 0;
  786:                 break;
  787:             /* set foreground color */
  788:             case 30:
  789:                 s->t_attrib.fgcol=COLOR_BLACK;
  790:                 break;
  791:             case 31:
  792:                 s->t_attrib.fgcol=COLOR_RED;
  793:                 break;
  794:             case 32:
  795:                 s->t_attrib.fgcol=COLOR_GREEN;
  796:                 break;
  797:             case 33:
  798:                 s->t_attrib.fgcol=COLOR_YELLOW;
  799:                 break;
  800:             case 34:
  801:                 s->t_attrib.fgcol=COLOR_BLUE;
  802:                 break;
  803:             case 35:
  804:                 s->t_attrib.fgcol=COLOR_MAGENTA;
  805:                 break;
  806:             case 36:
  807:                 s->t_attrib.fgcol=COLOR_CYAN;
  808:                 break;
  809:             case 37:
  810:                 s->t_attrib.fgcol=COLOR_WHITE;
  811:                 break;
  812:             /* set background color */
  813:             case 40:
  814:                 s->t_attrib.bgcol=COLOR_BLACK;
  815:                 break;
  816:             case 41:
  817:                 s->t_attrib.bgcol=COLOR_RED;
  818:                 break;
  819:             case 42:
  820:                 s->t_attrib.bgcol=COLOR_GREEN;
  821:                 break;
  822:             case 43:
  823:                 s->t_attrib.bgcol=COLOR_YELLOW;
  824:                 break;
  825:             case 44:
  826:                 s->t_attrib.bgcol=COLOR_BLUE;
  827:                 break;
  828:             case 45:
  829:                 s->t_attrib.bgcol=COLOR_MAGENTA;
  830:                 break;
  831:             case 46:
  832:                 s->t_attrib.bgcol=COLOR_CYAN;
  833:                 break;
  834:             case 47:
  835:                 s->t_attrib.bgcol=COLOR_WHITE;
  836:                 break;
  837:         }
  838:     }
  839: }
  840: 
  841: static void console_clear_xy(TextConsole *s, int x, int y)
  842: {
  843:     int y1 = (s->y_base + y) % s->total_height;
  844:     TextCell *c = &s->cells[y1 * s->width + x];
  845:     c->ch = ' ';
  846:     c->t_attrib = s->t_attrib_default;
  847:     update_xy(s, x, y);
  848: }
  849: 
  850: static void console_putchar(TextConsole *s, int ch)
  851: {
  852:     TextCell *c;
  853:     int y1, i;
  854:     int x, y;
  855: 
  856:     switch(s->state) {
  857:     case TTY_STATE_NORM:
  858:         switch(ch) {
  859:         case '\r':  /* carriage return */
  860:             s->x = 0;
  861:             break;
  862:         case '\n':  /* newline */
  863:             console_put_lf(s);
  864:             break;
  865:         case '\b':  /* backspace */
  866:             if (s->x > 0)
  867:                 s->x--;
  868:             break;
  869:         case '\t':  /* tabspace */
  870:             if (s->x + (8 - (s->x % 8)) > s->width) {
  871:                 s->x = 0;
  872:                 console_put_lf(s);
  873:             } else {
  874:                 s->x = s->x + (8 - (s->x % 8));
  875:             }
  876:             break;
  877:         case '\a':  /* alert aka. bell */
  878:             /* TODO: has to be implemented */
  879:             break;
  880:         case 14:
  881:             /* SI (shift in), character set 0 (ignored) */
  882:             break;
  883:         case 15:
  884:             /* SO (shift out), character set 1 (ignored) */
  885:             break;
  886:         case 27:    /* esc (introducing an escape sequence) */
  887:             s->state = TTY_STATE_ESC;
  888:             break;
  889:         default:
  890:             if (s->x >= s->width) {
  891:                 /* line wrap */
  892:                 s->x = 0;
  893:                 console_put_lf(s);
  894:             }
  895:             y1 = (s->y_base + s->y) % s->total_height;
  896:             c = &s->cells[y1 * s->width + s->x];
  897:             c->ch = ch;
  898:             c->t_attrib = s->t_attrib;
  899:             update_xy(s, s->x, s->y);
  900:             s->x++;
  901:             break;
  902:         }
  903:         break;
  904:     case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
  905:         if (ch == '[') {
  906:             for(i=0;i<MAX_ESC_PARAMS;i++)
  907:                 s->esc_params[i] = 0;
  908:             s->nb_esc_params = 0;
  909:             s->state = TTY_STATE_CSI;
  910:         } else {
  911:             s->state = TTY_STATE_NORM;
  912:         }
  913:         break;
  914:     case TTY_STATE_CSI: /* handle escape sequence parameters */
  915:         if (ch >= '0' && ch <= '9') {
  916:             if (s->nb_esc_params < MAX_ESC_PARAMS) {
  917:                 s->esc_params[s->nb_esc_params] =
  918:                     s->esc_params[s->nb_esc_params] * 10 + ch - '0';
  919:             }
  920:         } else {
  921:             s->nb_esc_params++;
  922:             if (ch == ';')
  923:                 break;
  924: #ifdef DEBUG_CONSOLE
  925:             fprintf(stderr, "escape sequence CSI%d;%d%c, %d parameters\n",
  926:                     s->esc_params[0], s->esc_params[1], ch, s->nb_esc_params);
  927: #endif
  928:             s->state = TTY_STATE_NORM;
  929:             switch(ch) {
  930:             case 'A':
  931:                 /* move cursor up */
  932:                 if (s->esc_params[0] == 0) {
  933:                     s->esc_params[0] = 1;
  934:                 }
  935:                 s->y -= s->esc_params[0];
  936:                 if (s->y < 0) {
  937:                     s->y = 0;
  938:                 }
  939:                 break;
  940:             case 'B':
  941:                 /* move cursor down */
  942:                 if (s->esc_params[0] == 0) {
  943:                     s->esc_params[0] = 1;
  944:                 }
  945:                 s->y += s->esc_params[0];
  946:                 if (s->y >= s->height) {
  947:                     s->y = s->height - 1;
  948:                 }
  949:                 break;
  950:             case 'C':
  951:                 /* move cursor right */
  952:                 if (s->esc_params[0] == 0) {
  953:                     s->esc_params[0] = 1;
  954:                 }
  955:                 s->x += s->esc_params[0];
  956:                 if (s->x >= s->width) {
  957:                     s->x = s->width - 1;
  958:                 }
  959:                 break;
  960:             case 'D':
  961:                 /* move cursor left */
  962:                 if (s->esc_params[0] == 0) {
  963:                     s->esc_params[0] = 1;
  964:                 }
  965:                 s->x -= s->esc_params[0];
  966:                 if (s->x < 0) {
  967:                     s->x = 0;
  968:                 }
  969:                 break;
  970:             case 'G':
  971:                 /* move cursor to column */
  972:                 s->x = s->esc_params[0] - 1;
  973:                 if (s->x < 0) {
  974:                     s->x = 0;
  975:                 }
  976:                 break;
  977:             case 'f':
  978:             case 'H':
  979:                 /* move cursor to row, column */
  980:                 s->x = s->esc_params[1] - 1;
  981:                 if (s->x < 0) {
  982:                     s->x = 0;
  983:                 }
  984:                 s->y = s->esc_params[0] - 1;
  985:                 if (s->y < 0) {
  986:                     s->y = 0;
  987:                 }
  988:                 break;
  989:             case 'J':
  990:                 switch (s->esc_params[0]) {
  991:                 case 0:
  992:                     /* clear to end of screen */
  993:                     for (y = s->y; y < s->height; y++) {
  994:                         for (x = 0; x < s->width; x++) {
  995:                             if (y == s->y && x < s->x) {
  996:                                 continue;
  997:                             }
  998:                             console_clear_xy(s, x, y);
  999:                         }
 1000:                     }
 1001:                     break;
 1002:                 case 1:
 1003:                     /* clear from beginning of screen */
 1004:                     for (y = 0; y <= s->y; y++) {
 1005:                         for (x = 0; x < s->width; x++) {
 1006:                             if (y == s->y && x > s->x) {
 1007:                                 break;
 1008:                             }
 1009:                             console_clear_xy(s, x, y);
 1010:                         }
 1011:                     }
 1012:                     break;
 1013:                 case 2:
 1014:                     /* clear entire screen */
 1015:                     for (y = 0; y <= s->height; y++) {
 1016:                         for (x = 0; x < s->width; x++) {
 1017:                             console_clear_xy(s, x, y);
 1018:                         }
 1019:                     }
 1020:                     break;
 1021:                 }
 1022:                 break;
 1023:             case 'K':
 1024:                 switch (s->esc_params[0]) {
 1025:                 case 0:
 1026:                     /* clear to eol */
 1027:                     for(x = s->x; x < s->width; x++) {
 1028:                         console_clear_xy(s, x, s->y);
 1029:                     }
 1030:                     break;
 1031:                 case 1:
 1032:                     /* clear from beginning of line */
 1033:                     for (x = 0; x <= s->x; x++) {
 1034:                         console_clear_xy(s, x, s->y);
 1035:                     }
 1036:                     break;
 1037:                 case 2:
 1038:                     /* clear entire line */
 1039:                     for(x = 0; x < s->width; x++) {
 1040:                         console_clear_xy(s, x, s->y);
 1041:                     }
 1042:                     break;
 1043:                 }
 1044:                 break;
 1045:             case 'm':
 1046:                 console_handle_escape(s);
 1047:                 break;
 1048:             case 'n':
 1049:                 /* report cursor position */
 1050:                 /* TODO: send ESC[row;colR */
 1051:                 break;
 1052:             case 's':
 1053:                 /* save cursor position */
 1054:                 s->x_saved = s->x;
 1055:                 s->y_saved = s->y;
 1056:                 break;
 1057:             case 'u':
 1058:                 /* restore cursor position */
 1059:                 s->x = s->x_saved;
 1060:                 s->y = s->y_saved;
 1061:                 break;
 1062:             default:
 1063: #ifdef DEBUG_CONSOLE
 1064:                 fprintf(stderr, "unhandled escape character '%c'\n", ch);
 1065: #endif
 1066:                 break;
 1067:             }
 1068:             break;
 1069:         }
 1070:     }
 1071: }
 1072: 
 1073: void console_select(unsigned int index)
 1074: {
 1075:     TextConsole *s;
 1076: 
 1077:     if (index >= MAX_CONSOLES)
 1078:         return;
 1079:     if (active_console) {
 1080:         active_console->g_width = ds_get_width(active_console->ds);
 1081:         active_console->g_height = ds_get_height(active_console->ds);
 1082:     }
 1083:     s = consoles[index];
 1084:     if (s) {
 1085:         DisplayState *ds = s->ds;
 1086:         active_console = s;
 1087:         if (ds_get_bits_per_pixel(s->ds)) {
 1088:             ds->surface = qemu_resize_displaysurface(ds, s->g_width, s->g_height);
 1089:         } else {
 1090:             s->ds->surface->width = s->width;
 1091:             s->ds->surface->height = s->height;
 1092:         }
 1093:         dpy_resize(s->ds);
 1094:         vga_hw_invalidate();
 1095:     }
 1096: }
 1097: 
 1098: static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
 1099: {
 1100:     TextConsole *s = chr->opaque;
 1101:     int i;
 1102: 
 1103:     s->update_x0 = s->width * FONT_WIDTH;
 1104:     s->update_y0 = s->height * FONT_HEIGHT;
 1105:     s->update_x1 = 0;
 1106:     s->update_y1 = 0;
 1107:     console_show_cursor(s, 0);
 1108:     for(i = 0; i < len; i++) {
 1109:         console_putchar(s, buf[i]);
 1110:     }
 1111:     console_show_cursor(s, 1);
 1112:     if (ds_get_bits_per_pixel(s->ds) && s->update_x0 < s->update_x1) {
 1113:         dpy_update(s->ds, s->update_x0, s->update_y0,
 1114:                    s->update_x1 - s->update_x0,
 1115:                    s->update_y1 - s->update_y0);
 1116:     }
 1117:     return len;
 1118: }
 1119: 
 1120: static void kbd_send_chars(void *opaque)
 1121: {
 1122:     TextConsole *s = opaque;
 1123:     int len;
 1124:     uint8_t buf[16];
 1125: 
 1126:     len = qemu_chr_be_can_write(s->chr);
 1127:     if (len > s->out_fifo.count)
 1128:         len = s->out_fifo.count;
 1129:     if (len > 0) {
 1130:         if (len > sizeof(buf))
 1131:             len = sizeof(buf);
 1132:         qemu_fifo_read(&s->out_fifo, buf, len);
 1133:         qemu_chr_be_write(s->chr, buf, len);
 1134:     }
 1135:     /* characters are pending: we send them a bit later (XXX:
 1136:        horrible, should change char device API) */
 1137:     if (s->out_fifo.count > 0) {
 1138:         qemu_mod_timer(s->kbd_timer, qemu_get_clock_ms(rt_clock) + 1);
 1139:     }
 1140: }
 1141: 
 1142: /* called when an ascii key is pressed */
 1143: void kbd_put_keysym(int keysym)
 1144: {
 1145:     TextConsole *s;
 1146:     uint8_t buf[16], *q;
 1147:     int c;
 1148: 
 1149:     s = active_console;
 1150:     if (!s || (s->console_type == GRAPHIC_CONSOLE))
 1151:         return;
 1152: 
 1153:     switch(keysym) {
 1154:     case QEMU_KEY_CTRL_UP:
 1155:         console_scroll(-1);
 1156:         break;
 1157:     case QEMU_KEY_CTRL_DOWN:
 1158:         console_scroll(1);
 1159:         break;
 1160:     case QEMU_KEY_CTRL_PAGEUP:
 1161:         console_scroll(-10);
 1162:         break;
 1163:     case QEMU_KEY_CTRL_PAGEDOWN:
 1164:         console_scroll(10);
 1165:         break;
 1166:     default:
 1167:         /* convert the QEMU keysym to VT100 key string */
 1168:         q = buf;
 1169:         if (keysym >= 0xe100 && keysym <= 0xe11f) {
 1170:             *q++ = '\033';
 1171:             *q++ = '[';
 1172:             c = keysym - 0xe100;
 1173:             if (c >= 10)
 1174:                 *q++ = '0' + (c / 10);
 1175:             *q++ = '0' + (c % 10);
 1176:             *q++ = '~';
 1177:         } else if (keysym >= 0xe120 && keysym <= 0xe17f) {
 1178:             *q++ = '\033';
 1179:             *q++ = '[';
 1180:             *q++ = keysym & 0xff;
 1181:         } else if (s->echo && (keysym == '\r' || keysym == '\n')) {
 1182:             console_puts(s->chr, (const uint8_t *) "\r", 1);
 1183:             *q++ = '\n';
 1184:         } else {
 1185:             *q++ = keysym;
 1186:         }
 1187:         if (s->echo) {
 1188:             console_puts(s->chr, buf, q - buf);
 1189:         }
 1190:         if (s->chr->chr_read) {
 1191:             qemu_fifo_write(&s->out_fifo, buf, q - buf);
 1192:             kbd_send_chars(s);
 1193:         }
 1194:         break;
 1195:     }
 1196: }
 1197: 
 1198: static void text_console_invalidate(void *opaque)
 1199: {
 1200:     TextConsole *s = (TextConsole *) opaque;
 1201:     if (!ds_get_bits_per_pixel(s->ds) && s->console_type == TEXT_CONSOLE) {
 1202:         s->g_width = ds_get_width(s->ds);
 1203:         s->g_height = ds_get_height(s->ds);
 1204:         text_console_resize(s);
 1205:     }
 1206:     console_refresh(s);
 1207: }
 1208: 
 1209: static void text_console_update(void *opaque, console_ch_t *chardata)
 1210: {
 1211:     TextConsole *s = (TextConsole *) opaque;
 1212:     int i, j, src;
 1213: 
 1214:     if (s->text_x[0] <= s->text_x[1]) {
 1215:         src = (s->y_base + s->text_y[0]) * s->width;
 1216:         chardata += s->text_y[0] * s->width;
 1217:         for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
 1218:             for (j = 0; j < s->width; j ++, src ++)
 1219:                 console_write_ch(chardata ++, s->cells[src].ch |
 1220:                                 (s->cells[src].t_attrib.fgcol << 12) |
 1221:                                 (s->cells[src].t_attrib.bgcol << 8) |
 1222:                                 (s->cells[src].t_attrib.bold << 21));
 1223:         dpy_update(s->ds, s->text_x[0], s->text_y[0],
 1224:                    s->text_x[1] - s->text_x[0], i - s->text_y[0]);
 1225:         s->text_x[0] = s->width;
 1226:         s->text_y[0] = s->height;
 1227:         s->text_x[1] = 0;
 1228:         s->text_y[1] = 0;
 1229:     }
 1230:     if (s->cursor_invalidate) {
 1231:         dpy_cursor(s->ds, s->x, s->y);
 1232:         s->cursor_invalidate = 0;
 1233:     }
 1234: }
 1235: 
 1236: static TextConsole *get_graphic_console(DisplayState *ds)
 1237: {
 1238:     int i;
 1239:     TextConsole *s;
 1240:     for (i = 0; i < nb_consoles; i++) {
 1241:         s = consoles[i];
 1242:         if (s->console_type == GRAPHIC_CONSOLE && s->ds == ds)
 1243:             return s;
 1244:     }
 1245:     return NULL;
 1246: }
 1247: 
 1248: static TextConsole *new_console(DisplayState *ds, console_type_t console_type)
 1249: {
 1250:     TextConsole *s;
 1251:     int i;
 1252: 
 1253:     if (nb_consoles >= MAX_CONSOLES)
 1254:         return NULL;
 1255:     s = g_malloc0(sizeof(TextConsole));
 1256:     if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
 1257:         (console_type == GRAPHIC_CONSOLE))) {
 1258:         active_console = s;
 1259:     }
 1260:     s->ds = ds;
 1261:     s->console_type = console_type;
 1262:     if (console_type != GRAPHIC_CONSOLE) {
 1263:         s->index = nb_consoles;
 1264:         consoles[nb_consoles++] = s;
 1265:     } else {
 1266:         /* HACK: Put graphical consoles before text consoles.  */
 1267:         for (i = nb_consoles; i > 0; i--) {
 1268:             if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
 1269:                 break;
 1270:             consoles[i] = consoles[i - 1];
 1271:             consoles[i]->index = i;
 1272:         }
 1273:         s->index = i;
 1274:         consoles[i] = s;
 1275:         nb_consoles++;
 1276:     }
 1277:     return s;
 1278: }
 1279: 
 1280: static DisplaySurface* defaultallocator_create_displaysurface(int width, int height)
 1281: {
 1282:     DisplaySurface *surface = (DisplaySurface*) g_malloc0(sizeof(DisplaySurface));
 1283: 
 1284:     int linesize = width * 4;
 1285:     qemu_alloc_display(surface, width, height, linesize,
 1286:                        qemu_default_pixelformat(32), 0);
 1287:     return surface;
 1288: }
 1289: 
 1290: static DisplaySurface* defaultallocator_resize_displaysurface(DisplaySurface *surface,
 1291:                                           int width, int height)
 1292: {
 1293:     int linesize = width * 4;
 1294:     qemu_alloc_display(surface, width, height, linesize,
 1295:                        qemu_default_pixelformat(32), 0);
 1296:     return surface;
 1297: }
 1298: 
 1299: void qemu_alloc_display(DisplaySurface *surface, int width, int height,
 1300:                         int linesize, PixelFormat pf, int newflags)
 1301: {
 1302:     void *data;
 1303:     surface->width = width;
 1304:     surface->height = height;
 1305:     surface->linesize = linesize;
 1306:     surface->pf = pf;
 1307:     if (surface->flags & QEMU_ALLOCATED_FLAG) {
 1308:         data = g_realloc(surface->data,
 1309:                             surface->linesize * surface->height);
 1310:     } else {
 1311:         data = g_malloc(surface->linesize * surface->height);
 1312:     }
 1313:     surface->data = (uint8_t *)data;
 1314:     surface->flags = newflags | QEMU_ALLOCATED_FLAG;
 1315: #ifdef HOST_WORDS_BIGENDIAN
 1316:     surface->flags |= QEMU_BIG_ENDIAN_FLAG;
 1317: #endif
 1318: }
 1319: 
 1320: DisplaySurface* qemu_create_displaysurface_from(int width, int height, int bpp,
 1321:                                               int linesize, uint8_t *data)
 1322: {
 1323:     DisplaySurface *surface = (DisplaySurface*) g_malloc0(sizeof(DisplaySurface));
 1324: 
 1325:     surface->width = width;
 1326:     surface->height = height;
 1327:     surface->linesize = linesize;
 1328:     surface->pf = qemu_default_pixelformat(bpp);
 1329: #ifdef HOST_WORDS_BIGENDIAN
 1330:     surface->flags = QEMU_BIG_ENDIAN_FLAG;
 1331: #endif
 1332:     surface->data = data;
 1333: 
 1334:     return surface;
 1335: }
 1336: 
 1337: static void defaultallocator_free_displaysurface(DisplaySurface *surface)
 1338: {
 1339:     if (surface == NULL)
 1340:         return;
 1341:     if (surface->flags & QEMU_ALLOCATED_FLAG)
 1342:         g_free(surface->data);
 1343:     g_free(surface);
 1344: }
 1345: 
 1346: static struct DisplayAllocator default_allocator = {
 1347:     defaultallocator_create_displaysurface,
 1348:     defaultallocator_resize_displaysurface,
 1349:     defaultallocator_free_displaysurface
 1350: };
 1351: 
 1352: static void dumb_display_init(void)
 1353: {
 1354:     DisplayState *ds = g_malloc0(sizeof(DisplayState));
 1355:     int width = 640;
 1356:     int height = 480;
 1357: 
 1358:     ds->allocator = &default_allocator;
 1359:     if (is_fixedsize_console()) {
 1360:         width = active_console->g_width;
 1361:         height = active_console->g_height;
 1362:     }
 1363:     ds->surface = qemu_create_displaysurface(ds, width, height);
 1364:     register_displaystate(ds);
 1365: }
 1366: 
 1367: /***********************************************************/
 1368: /* register display */
 1369: 
 1370: void register_displaystate(DisplayState *ds)
 1371: {
 1372:     DisplayState **s;
 1373:     s = &display_state;
 1374:     while (*s != NULL)
 1375:         s = &(*s)->next;
 1376:     ds->next = NULL;
 1377:     *s = ds;
 1378: }
 1379: 
 1380: DisplayState *get_displaystate(void)
 1381: {
 1382:     if (!display_state) {
 1383:         dumb_display_init ();
 1384:     }
 1385:     return display_state;
 1386: }
 1387: 
 1388: DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
 1389: {
 1390:     if(ds->allocator ==  &default_allocator) {
 1391:         DisplaySurface *surf;
 1392:         surf = da->create_displaysurface(ds_get_width(ds), ds_get_height(ds));
 1393:         defaultallocator_free_displaysurface(ds->surface);
 1394:         ds->surface = surf;
 1395:         ds->allocator = da;
 1396:     }
 1397:     return ds->allocator;
 1398: }
 1399: 
 1400: DisplayState *graphic_console_init(vga_hw_update_ptr update,
 1401:                                    vga_hw_invalidate_ptr invalidate,
 1402:                                    vga_hw_screen_dump_ptr screen_dump,
 1403:                                    vga_hw_text_update_ptr text_update,
 1404:                                    void *opaque)
 1405: {
 1406:     TextConsole *s;
 1407:     DisplayState *ds;
 1408: 
 1409:     ds = (DisplayState *) g_malloc0(sizeof(DisplayState));
 1410:     ds->allocator = &default_allocator; 
 1411:     ds->surface = qemu_create_displaysurface(ds, 640, 480);
 1412: 
 1413:     s = new_console(ds, GRAPHIC_CONSOLE);
 1414:     if (s == NULL) {
 1415:         qemu_free_displaysurface(ds);
 1416:         g_free(ds);
 1417:         return NULL;
 1418:     }
 1419:     s->hw_update = update;
 1420:     s->hw_invalidate = invalidate;
 1421:     s->hw_screen_dump = screen_dump;
 1422:     s->hw_text_update = text_update;
 1423:     s->hw = opaque;
 1424: 
 1425:     register_displaystate(ds);
 1426:     return ds;
 1427: }
 1428: 
 1429: int is_graphic_console(void)
 1430: {
 1431:     return active_console && active_console->console_type == GRAPHIC_CONSOLE;
 1432: }
 1433: 
 1434: int is_fixedsize_console(void)
 1435: {
 1436:     return active_console && active_console->console_type != TEXT_CONSOLE;
 1437: }
 1438: 
 1439: void console_color_init(DisplayState *ds)
 1440: {
 1441:     int i, j;
 1442:     for (j = 0; j < 2; j++) {
 1443:         for (i = 0; i < 8; i++) {
 1444:             color_table[j][i] = col_expand(ds,
 1445:                    vga_get_color(ds, color_table_rgb[j][i]));
 1446:         }
 1447:     }
 1448: }
 1449: 
 1450: static void text_console_set_echo(CharDriverState *chr, bool echo)
 1451: {
 1452:     TextConsole *s = chr->opaque;
 1453: 
 1454:     s->echo = echo;
 1455: }
 1456: 
 1457: static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
 1458: {
 1459:     TextConsole *s;
 1460:     static int color_inited;
 1461: 
 1462:     s = chr->opaque;
 1463: 
 1464:     chr->chr_write = console_puts;
 1465: 
 1466:     s->out_fifo.buf = s->out_fifo_buf;
 1467:     s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
 1468:     s->kbd_timer = qemu_new_timer_ms(rt_clock, kbd_send_chars, s);
 1469:     s->ds = ds;
 1470: 
 1471:     if (!color_inited) {
 1472:         color_inited = 1;
 1473:         console_color_init(s->ds);
 1474:     }
 1475:     s->y_displayed = 0;
 1476:     s->y_base = 0;
 1477:     s->total_height = DEFAULT_BACKSCROLL;
 1478:     s->x = 0;
 1479:     s->y = 0;
 1480:     if (s->console_type == TEXT_CONSOLE) {
 1481:         s->g_width = ds_get_width(s->ds);
 1482:         s->g_height = ds_get_height(s->ds);
 1483:     }
 1484: 
 1485:     s->hw_invalidate = text_console_invalidate;
 1486:     s->hw_text_update = text_console_update;
 1487:     s->hw = s;
 1488: 
 1489:     /* Set text attribute defaults */
 1490:     s->t_attrib_default.bold = 0;
 1491:     s->t_attrib_default.uline = 0;
 1492:     s->t_attrib_default.blink = 0;
 1493:     s->t_attrib_default.invers = 0;
 1494:     s->t_attrib_default.unvisible = 0;
 1495:     s->t_attrib_default.fgcol = COLOR_WHITE;
 1496:     s->t_attrib_default.bgcol = COLOR_BLACK;
 1497:     /* set current text attributes to default */
 1498:     s->t_attrib = s->t_attrib_default;
 1499:     text_console_resize(s);
 1500: 
 1501:     if (chr->label) {
 1502:         char msg[128];
 1503:         int len;
 1504: 
 1505:         s->t_attrib.bgcol = COLOR_BLUE;
 1506:         len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
 1507:         console_puts(chr, (uint8_t*)msg, len);
 1508:         s->t_attrib = s->t_attrib_default;
 1509:     }
 1510: 
 1511:     qemu_chr_generic_open(chr);
 1512:     if (chr->init)
 1513:         chr->init(chr);
 1514: }
 1515: 
 1516: CharDriverState *text_console_init(QemuOpts *opts)
 1517: {
 1518:     CharDriverState *chr;
 1519:     TextConsole *s;
 1520:     unsigned width;
 1521:     unsigned height;
 1522: 
 1523:     chr = g_malloc0(sizeof(CharDriverState));
 1524: 
 1525:     width = qemu_opt_get_number(opts, "width", 0);
 1526:     if (width == 0)
 1527:         width = qemu_opt_get_number(opts, "cols", 0) * FONT_WIDTH;
 1528: 
 1529:     height = qemu_opt_get_number(opts, "height", 0);
 1530:     if (height == 0)
 1531:         height = qemu_opt_get_number(opts, "rows", 0) * FONT_HEIGHT;
 1532: 
 1533:     if (width == 0 || height == 0) {
 1534:         s = new_console(NULL, TEXT_CONSOLE);
 1535:     } else {
 1536:         s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE);
 1537:     }
 1538: 
 1539:     if (!s) {
 1540:         g_free(chr);
 1541:         return NULL;
 1542:     }
 1543: 
 1544:     s->chr = chr;
 1545:     s->g_width = width;
 1546:     s->g_height = height;
 1547:     chr->opaque = s;
 1548:     chr->chr_set_echo = text_console_set_echo;
 1549:     return chr;
 1550: }
 1551: 
 1552: void text_consoles_set_display(DisplayState *ds)
 1553: {
 1554:     int i;
 1555: 
 1556:     for (i = 0; i < nb_consoles; i++) {
 1557:         if (consoles[i]->console_type != GRAPHIC_CONSOLE) {
 1558:             text_console_do_init(consoles[i]->chr, ds);
 1559:         }
 1560:     }
 1561: }
 1562: 
 1563: void qemu_console_resize(DisplayState *ds, int width, int height)
 1564: {
 1565:     TextConsole *s = get_graphic_console(ds);
 1566:     if (!s) return;
 1567: 
 1568:     s->g_width = width;
 1569:     s->g_height = height;
 1570:     if (is_graphic_console()) {
 1571:         ds->surface = qemu_resize_displaysurface(ds, width, height);
 1572:         dpy_resize(ds);
 1573:     }
 1574: }
 1575: 
 1576: void qemu_console_copy(DisplayState *ds, int src_x, int src_y,
 1577:                        int dst_x, int dst_y, int w, int h)
 1578: {
 1579:     if (is_graphic_console()) {
 1580:         dpy_copy(ds, src_x, src_y, dst_x, dst_y, w, h);
 1581:     }
 1582: }
 1583: 
 1584: PixelFormat qemu_different_endianness_pixelformat(int bpp)
 1585: {
 1586:     PixelFormat pf;
 1587: 
 1588:     memset(&pf, 0x00, sizeof(PixelFormat));
 1589: 
 1590:     pf.bits_per_pixel = bpp;
 1591:     pf.bytes_per_pixel = bpp / 8;
 1592:     pf.depth = bpp == 32 ? 24 : bpp;
 1593: 
 1594:     switch (bpp) {
 1595:         case 24:
 1596:             pf.rmask = 0x000000FF;
 1597:             pf.gmask = 0x0000FF00;
 1598:             pf.bmask = 0x00FF0000;
 1599:             pf.rmax = 255;
 1600:             pf.gmax = 255;
 1601:             pf.bmax = 255;
 1602:             pf.rshift = 0;
 1603:             pf.gshift = 8;
 1604:             pf.bshift = 16;
 1605:             pf.rbits = 8;
 1606:             pf.gbits = 8;
 1607:             pf.bbits = 8;
 1608:             break;
 1609:         case 32:
 1610:             pf.rmask = 0x0000FF00;
 1611:             pf.gmask = 0x00FF0000;
 1612:             pf.bmask = 0xFF000000;
 1613:             pf.amask = 0x00000000;
 1614:             pf.amax = 255;
 1615:             pf.rmax = 255;
 1616:             pf.gmax = 255;
 1617:             pf.bmax = 255;
 1618:             pf.ashift = 0;
 1619:             pf.rshift = 8;
 1620:             pf.gshift = 16;
 1621:             pf.bshift = 24;
 1622:             pf.rbits = 8;
 1623:             pf.gbits = 8;
 1624:             pf.bbits = 8;
 1625:             pf.abits = 8;
 1626:             break;
 1627:         default:
 1628:             break;
 1629:     }
 1630:     return pf;
 1631: }
 1632: 
 1633: PixelFormat qemu_default_pixelformat(int bpp)
 1634: {
 1635:     PixelFormat pf;
 1636: 
 1637:     memset(&pf, 0x00, sizeof(PixelFormat));
 1638: 
 1639:     pf.bits_per_pixel = bpp;
 1640:     pf.bytes_per_pixel = bpp / 8;
 1641:     pf.depth = bpp == 32 ? 24 : bpp;
 1642: 
 1643:     switch (bpp) {
 1644:         case 15:
 1645:             pf.bits_per_pixel = 16;
 1646:             pf.bytes_per_pixel = 2;
 1647:             pf.rmask = 0x00007c00;
 1648:             pf.gmask = 0x000003E0;
 1649:             pf.bmask = 0x0000001F;
 1650:             pf.rmax = 31;
 1651:             pf.gmax = 31;
 1652:             pf.bmax = 31;
 1653:             pf.rshift = 10;
 1654:             pf.gshift = 5;
 1655:             pf.bshift = 0;
 1656:             pf.rbits = 5;
 1657:             pf.gbits = 5;
 1658:             pf.bbits = 5;
 1659:             break;
 1660:         case 16:
 1661:             pf.rmask = 0x0000F800;
 1662:             pf.gmask = 0x000007E0;
 1663:             pf.bmask = 0x0000001F;
 1664:             pf.rmax = 31;
 1665:             pf.gmax = 63;
 1666:             pf.bmax = 31;
 1667:             pf.rshift = 11;
 1668:             pf.gshift = 5;
 1669:             pf.bshift = 0;
 1670:             pf.rbits = 5;
 1671:             pf.gbits = 6;
 1672:             pf.bbits = 5;
 1673:             break;
 1674:         case 24:
 1675:             pf.rmask = 0x00FF0000;
 1676:             pf.gmask = 0x0000FF00;
 1677:             pf.bmask = 0x000000FF;
 1678:             pf.rmax = 255;
 1679:             pf.gmax = 255;
 1680:             pf.bmax = 255;
 1681:             pf.rshift = 16;
 1682:             pf.gshift = 8;
 1683:             pf.bshift = 0;
 1684:             pf.rbits = 8;
 1685:             pf.gbits = 8;
 1686:             pf.bbits = 8;
 1687:             break;
 1688:         case 32:
 1689:             pf.rmask = 0x00FF0000;
 1690:             pf.gmask = 0x0000FF00;
 1691:             pf.bmask = 0x000000FF;
 1692:             pf.amax = 255;
 1693:             pf.rmax = 255;
 1694:             pf.gmax = 255;
 1695:             pf.bmax = 255;
 1696:             pf.ashift = 24;
 1697:             pf.rshift = 16;
 1698:             pf.gshift = 8;
 1699:             pf.bshift = 0;
 1700:             pf.rbits = 8;
 1701:             pf.gbits = 8;
 1702:             pf.bbits = 8;
 1703:             pf.abits = 8;
 1704:             break;
 1705:         default:
 1706:             break;
 1707:     }
 1708:     return pf;
 1709: }

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