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| -rw-r--r-- | console.c | 711 |
1 files changed, 711 insertions, 0 deletions
diff --git a/console.c b/console.c new file mode 100644 index 0000000000..b688e931cb --- /dev/null +++ b/console.c @@ -0,0 +1,711 @@ +/* + * QEMU graphical console + * + * Copyright (c) 2004 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#include "vl.h" + +#define DEFAULT_BACKSCROLL 512 +#define MAX_CONSOLES 12 + +#define RGBA(r, g, b, a) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b)) +#define RGB(r, g, b) RGBA(r, g, b, 0xff) + +typedef struct TextCell { + uint8_t ch; + uint8_t bgcol:4; + uint8_t fgcol:4; +} TextCell; + +#define MAX_ESC_PARAMS 3 + +enum TTYState { + TTY_STATE_NORM, + TTY_STATE_ESC, + TTY_STATE_CSI, +}; + +struct TextConsole { + int text_console; /* true if text console */ + DisplayState *ds; + int g_width, g_height; + int width; + int height; + int total_height; + int backscroll_height; + int fgcol; + int bgcol; + int x, y; + int y_displayed; + int y_base; + TextCell *cells; + + enum TTYState state; + int esc_params[MAX_ESC_PARAMS]; + int nb_esc_params; + + /* kbd read handler */ + IOReadHandler *fd_read; + void *fd_opaque; +}; + +static TextConsole *active_console; +static TextConsole *consoles[MAX_CONSOLES]; +static int nb_consoles = 0; + +/* convert a RGBA color to a color index usable in graphic primitives */ +static unsigned int vga_get_color(DisplayState *ds, unsigned int rgba) +{ + unsigned int r, g, b, color; + + switch(ds->depth) { +#if 0 + case 8: + r = (rgba >> 16) & 0xff; + g = (rgba >> 8) & 0xff; + b = (rgba) & 0xff; + color = (rgb_to_index[r] * 6 * 6) + + (rgb_to_index[g] * 6) + + (rgb_to_index[b]); + break; +#endif + case 15: + r = (rgba >> 16) & 0xff; + g = (rgba >> 8) & 0xff; + b = (rgba) & 0xff; + color = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3); + break; + case 16: + r = (rgba >> 16) & 0xff; + g = (rgba >> 8) & 0xff; + b = (rgba) & 0xff; + color = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3); + break; + case 32: + default: + color = rgba; + break; + } + return color; +} + +static void vga_fill_rect (DisplayState *ds, + int posx, int posy, int width, int height, uint32_t color) +{ + uint8_t *d, *d1; + int x, y, bpp; + + bpp = (ds->depth + 7) >> 3; + d1 = ds->data + + ds->linesize * posy + bpp * posx; + for (y = 0; y < height; y++) { + d = d1; + switch(bpp) { + case 1: + for (x = 0; x < width; x++) { + *((uint8_t *)d) = color; + d++; + } + break; + case 2: + for (x = 0; x < width; x++) { + *((uint16_t *)d) = color; + d += 2; + } + break; + case 4: + for (x = 0; x < width; x++) { + *((uint32_t *)d) = color; + d += 4; + } + break; + } + d1 += ds->linesize; + } +} + +/* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */ +static void vga_bitblt(DisplayState *ds, int xs, int ys, int xd, int yd, int w, int h) +{ + const uint8_t *s; + uint8_t *d; + int wb, y, bpp; + + bpp = (ds->depth + 7) >> 3; + wb = w * bpp; + if (yd <= ys) { + s = ds->data + + ds->linesize * ys + bpp * xs; + d = ds->data + + ds->linesize * yd + bpp * xd; + for (y = 0; y < h; y++) { + memmove(d, s, wb); + d += ds->linesize; + s += ds->linesize; + } + } else { + s = ds->data + + ds->linesize * (ys + h - 1) + bpp * xs; + d = ds->data + + ds->linesize * (yd + h - 1) + bpp * xd; + for (y = 0; y < h; y++) { + memmove(d, s, wb); + d -= ds->linesize; + s -= ds->linesize; + } + } +} + +/***********************************************************/ +/* basic char display */ + +#define FONT_HEIGHT 16 +#define FONT_WIDTH 8 + +#include "vgafont.h" + +#define cbswap_32(__x) \ +((uint32_t)( \ + (((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \ + (((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \ + (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \ + (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )) + +#ifdef WORDS_BIGENDIAN +#define PAT(x) x +#else +#define PAT(x) cbswap_32(x) +#endif + +static const uint32_t dmask16[16] = { + PAT(0x00000000), + PAT(0x000000ff), + PAT(0x0000ff00), + PAT(0x0000ffff), + PAT(0x00ff0000), + PAT(0x00ff00ff), + PAT(0x00ffff00), + PAT(0x00ffffff), + PAT(0xff000000), + PAT(0xff0000ff), + PAT(0xff00ff00), + PAT(0xff00ffff), + PAT(0xffff0000), + PAT(0xffff00ff), + PAT(0xffffff00), + PAT(0xffffffff), +}; + +static const uint32_t dmask4[4] = { + PAT(0x00000000), + PAT(0x0000ffff), + PAT(0xffff0000), + PAT(0xffffffff), +}; + +static uint32_t color_table[8]; + +static const uint32_t color_table_rgb[8] = { + RGB(0x00, 0x00, 0x00), + RGB(0xff, 0x00, 0x00), + RGB(0x00, 0xff, 0x00), + RGB(0xff, 0xff, 0x00), + RGB(0x00, 0x00, 0xff), + RGB(0xff, 0x00, 0xff), + RGB(0x00, 0xff, 0xff), + RGB(0xff, 0xff, 0xff), +}; + +static inline unsigned int col_expand(DisplayState *ds, unsigned int col) +{ + switch(ds->depth) { + case 8: + col |= col << 8; + col |= col << 16; + break; + case 15: + case 16: + col |= col << 16; + break; + default: + break; + } + + return col; +} + +static void vga_putcharxy(DisplayState *ds, int x, int y, int ch, + unsigned int fgcol, unsigned int bgcol) +{ + uint8_t *d; + const uint8_t *font_ptr; + unsigned int font_data, linesize, xorcol, bpp; + int i; + + bpp = (ds->depth + 7) >> 3; + d = ds->data + + ds->linesize * y * FONT_HEIGHT + bpp * x * FONT_WIDTH; + linesize = ds->linesize; + font_ptr = vgafont16 + FONT_HEIGHT * ch; + xorcol = bgcol ^ fgcol; + switch(ds->depth) { + case 8: + for(i = 0; i < FONT_HEIGHT; i++) { + font_data = *font_ptr++; + ((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol; + ((uint32_t *)d)[1] = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol; + d += linesize; + } + break; + case 16: + case 15: + for(i = 0; i < FONT_HEIGHT; i++) { + font_data = *font_ptr++; + ((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol; + ((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol; + ((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol; + ((uint32_t *)d)[3] = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol; + d += linesize; + } + break; + case 32: + for(i = 0; i < FONT_HEIGHT; i++) { + font_data = *font_ptr++; + ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol; + ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol; + ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol; + ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol; + ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol; + ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol; + ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol; + ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol; + d += linesize; + } + break; + } +} + +static void text_console_resize(TextConsole *s) +{ + TextCell *cells, *c, *c1; + int w1, x, y, last_width; + + last_width = s->width; + s->width = s->g_width / FONT_WIDTH; + s->height = s->g_height / FONT_HEIGHT; + + w1 = last_width; + if (s->width < w1) + w1 = s->width; + + cells = qemu_malloc(s->width * s->total_height * sizeof(TextCell)); + for(y = 0; y < s->total_height; y++) { + c = &cells[y * s->width]; + if (w1 > 0) { + c1 = &s->cells[y * last_width]; + for(x = 0; x < w1; x++) { + *c++ = *c1++; + } + } + for(x = w1; x < s->width; x++) { + c->ch = ' '; + c->fgcol = 7; + c->bgcol = 0; + c++; + } + } + free(s->cells); + s->cells = cells; +} + +static void update_xy(TextConsole *s, int x, int y) +{ + TextCell *c; + int y1, y2; + + if (s == active_console) { + y1 = (s->y_base + y) % s->total_height; + y2 = y1 - s->y_displayed; + if (y2 < 0) + y2 += s->total_height; + if (y2 < s->height) { + c = &s->cells[y1 * s->width + x]; + vga_putcharxy(s->ds, x, y2, c->ch, + color_table[c->fgcol], color_table[c->bgcol]); + dpy_update(s->ds, x * FONT_WIDTH, y2 * FONT_HEIGHT, + FONT_WIDTH, FONT_HEIGHT); + } + } +} + +static void console_show_cursor(TextConsole *s, int show) +{ + TextCell *c; + int y, y1; + + if (s == active_console) { + y1 = (s->y_base + s->y) % s->total_height; + y = y1 - s->y_displayed; + if (y < 0) + y += s->total_height; + if (y < s->height) { + c = &s->cells[y1 * s->width + s->x]; + if (show) { + vga_putcharxy(s->ds, s->x, y, c->ch, + color_table[0], color_table[7]); + } else { + vga_putcharxy(s->ds, s->x, y, c->ch, + color_table[c->fgcol], color_table[c->bgcol]); + } + dpy_update(s->ds, s->x * FONT_WIDTH, y * FONT_HEIGHT, + FONT_WIDTH, FONT_HEIGHT); + } + } +} + +static void console_refresh(TextConsole *s) +{ + TextCell *c; + int x, y, y1; + + if (s != active_console) + return; + + vga_fill_rect(s->ds, 0, 0, s->ds->width, s->ds->height, + color_table[0]); + y1 = s->y_displayed; + for(y = 0; y < s->height; y++) { + c = s->cells + y1 * s->width; + for(x = 0; x < s->width; x++) { + vga_putcharxy(s->ds, x, y, c->ch, + color_table[c->fgcol], color_table[c->bgcol]); + c++; + } + if (++y1 == s->total_height) + y1 = 0; + } + dpy_update(s->ds, 0, 0, s->ds->width, s->ds->height); + console_show_cursor(s, 1); +} + +static void console_scroll(int ydelta) +{ + TextConsole *s; + int i, y1; + + s = active_console; + if (!s || !s->text_console) + return; + + if (ydelta > 0) { + for(i = 0; i < ydelta; i++) { + if (s->y_displayed == s->y_base) + break; + if (++s->y_displayed == s->total_height) + s->y_displayed = 0; + } + } else { + ydelta = -ydelta; + i = s->backscroll_height; + if (i > s->total_height - s->height) + i = s->total_height - s->height; + y1 = s->y_base - i; + if (y1 < 0) + y1 += s->total_height; + for(i = 0; i < ydelta; i++) { + if (s->y_displayed == y1) + break; + if (--s->y_displayed < 0) + s->y_displayed = s->total_height - 1; + } + } + console_refresh(s); +} + +static void console_put_lf(TextConsole *s) +{ + TextCell *c; + int x, y1; + + s->x = 0; + s->y++; + if (s->y >= s->height) { + s->y = s->height - 1; + + if (s->y_displayed == s->y_base) { + if (++s->y_displayed == s->total_height) + s->y_displayed = 0; + } + if (++s->y_base == s->total_height) + s->y_base = 0; + if (s->backscroll_height < s->total_height) + s->backscroll_height++; + y1 = (s->y_base + s->height - 1) % s->total_height; + c = &s->cells[y1 * s->width]; + for(x = 0; x < s->width; x++) { + c->ch = ' '; + c->fgcol = s->fgcol; + c->bgcol = s->bgcol; + c++; + } + if (s == active_console && s->y_displayed == s->y_base) { + vga_bitblt(s->ds, 0, FONT_HEIGHT, 0, 0, + s->width * FONT_WIDTH, + (s->height - 1) * FONT_HEIGHT); + vga_fill_rect(s->ds, 0, (s->height - 1) * FONT_HEIGHT, + s->width * FONT_WIDTH, FONT_HEIGHT, + color_table[s->bgcol]); + dpy_update(s->ds, 0, 0, + s->width * FONT_WIDTH, s->height * FONT_HEIGHT); + } + } +} + +static void console_putchar(TextConsole *s, int ch) +{ + TextCell *c; + int y1, i, x; + + switch(s->state) { + case TTY_STATE_NORM: + switch(ch) { + case '\r': + s->x = 0; + break; + case '\n': + console_put_lf(s); + break; + case 27: + s->state = TTY_STATE_ESC; + break; + default: + y1 = (s->y_base + s->y) % s->total_height; + c = &s->cells[y1 * s->width + s->x]; + c->ch = ch; + c->fgcol = s->fgcol; + c->bgcol = s->bgcol; + update_xy(s, s->x, s->y); + s->x++; + if (s->x >= s->width) + console_put_lf(s); + break; + } + break; + case TTY_STATE_ESC: + if (ch == '[') { + for(i=0;i<MAX_ESC_PARAMS;i++) + s->esc_params[i] = 0; + s->nb_esc_params = 0; + s->state = TTY_STATE_CSI; + } else { + s->state = TTY_STATE_NORM; + } + break; + case TTY_STATE_CSI: + if (ch >= '0' && ch <= '9') { + if (s->nb_esc_params < MAX_ESC_PARAMS) { + s->esc_params[s->nb_esc_params] = + s->esc_params[s->nb_esc_params] * 10 + ch - '0'; + } + } else { + s->nb_esc_params++; + if (ch == ';') + break; + s->state = TTY_STATE_NORM; + switch(ch) { + case 'D': + if (s->x > 0) + s->x--; + break; + case 'C': + if (s->x < (s->width - 1)) + s->x++; + break; + case 'K': + /* clear to eol */ + y1 = (s->y_base + s->y) % s->total_height; + for(x = s->x; x < s->width; x++) { + c = &s->cells[y1 * s->width + x]; + c->ch = ' '; + c->fgcol = s->fgcol; + c->bgcol = s->bgcol; + c++; + update_xy(s, x, s->y); + } + break; + default: + break; + } + break; + } + } +} + +void console_select(unsigned int index) +{ + TextConsole *s; + + if (index >= MAX_CONSOLES) + return; + s = consoles[index]; + if (s) { + active_console = s; + if (s->text_console) { + if (s->g_width != s->ds->width || + s->g_height != s->ds->height) + text_console_resize(s); + console_refresh(s); + } + } +} + +static int console_puts(CharDriverState *chr, const uint8_t *buf, int len) +{ + TextConsole *s = chr->opaque; + int i; + + console_show_cursor(s, 0); + for(i = 0; i < len; i++) { + console_putchar(s, buf[i]); + } + console_show_cursor(s, 1); + return len; +} + +static void console_chr_add_read_handler(CharDriverState *chr, + IOCanRWHandler *fd_can_read, + IOReadHandler *fd_read, void *opaque) +{ + TextConsole *s = chr->opaque; + s->fd_read = fd_read; + s->fd_opaque = opaque; +} + +/* called when an ascii key is pressed */ +void kbd_put_keysym(int keysym) +{ + TextConsole *s; + uint8_t buf[16], *q; + int c; + + s = active_console; + if (!s || !s->text_console) + return; + + switch(keysym) { + case QEMU_KEY_CTRL_UP: + console_scroll(-1); + break; + case QEMU_KEY_CTRL_DOWN: + console_scroll(1); + break; + case QEMU_KEY_CTRL_PAGEUP: + console_scroll(-10); + break; + case QEMU_KEY_CTRL_PAGEDOWN: + console_scroll(10); + break; + default: + if (s->fd_read) { + /* convert the QEMU keysym to VT100 key string */ + q = buf; + if (keysym >= 0xe100 && keysym <= 0xe11f) { + *q++ = '\033'; + *q++ = '['; + c = keysym - 0xe100; + if (c >= 10) + *q++ = '0' + (c / 10); + *q++ = '0' + (c % 10); + *q++ = '~'; + } else if (keysym >= 0xe120 && keysym <= 0xe17f) { + *q++ = '\033'; + *q++ = '['; + *q++ = keysym & 0xff; + } else { + *q++ = keysym; + } + s->fd_read(s->fd_opaque, buf, q - buf); + } + break; + } +} + +TextConsole *graphic_console_init(DisplayState *ds) +{ + TextConsole *s; + + if (nb_consoles >= MAX_CONSOLES) + return NULL; + s = qemu_mallocz(sizeof(TextConsole)); + if (!s) { + return NULL; + } + if (!active_console) + active_console = s; + s->ds = ds; + consoles[nb_consoles++] = s; + return s; +} + +int is_active_console(TextConsole *s) +{ + return s == active_console; +} + +CharDriverState *text_console_init(DisplayState *ds) +{ + CharDriverState *chr; + TextConsole *s; + int i; + static int color_inited; + + chr = qemu_mallocz(sizeof(CharDriverState)); + if (!chr) + return NULL; + s = graphic_console_init(ds); + if (!s) { + free(chr); + return NULL; + } + s->text_console = 1; + chr->opaque = s; + chr->chr_write = console_puts; + chr->chr_add_read_handler = console_chr_add_read_handler; + if (!color_inited) { + color_inited = 1; + for(i = 0; i < 8; i++) { + color_table[i] = col_expand(s->ds, + vga_get_color(s->ds, color_table_rgb[i])); + } + } + s->y_displayed = 0; + s->y_base = 0; + s->total_height = DEFAULT_BACKSCROLL; + s->x = 0; + s->y = 0; + s->fgcol = 7; + s->bgcol = 0; + s->g_width = s->ds->width; + s->g_height = s->ds->height; + text_console_resize(s); + + return chr; +} |