File:  [Qemu by Fabrice Bellard] / qemu / console.c
Revision 1.1.1.10 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:33:40 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu0150, qemu0141, qemu0140, HEAD
qemu 0.14.0

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

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