OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity
49b3b9fb1a
qemu-e2k/console.c
bellard e7f0ad58c1 virtual console 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1024 c046a42c-6fe2-441c-8c8c-71466251a162
2004-07-14 17:28:59 +00:00

712 lines
19 KiB
C
Raw Blame History

/*
* 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;
}
Reference in New Issue View Git Blame Copy Permalink