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qemu/ui/console.c
Hans de Goede fee204fd46 qemu-char: Rename qemu_chr_generic_open to qemu_chr_be_generic_open 
To better reflect that it is for handling a backend being opened.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-3-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:26:49 -05:00

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/*
* 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 "qemu-common.h"
#include "ui/console.h"
#include "qemu/timer.h"
#include "qmp-commands.h"
#include "char/char.h"
//#define DEBUG_CONSOLE
#define DEFAULT_BACKSCROLL 512
#define MAX_CONSOLES 12
#define CONSOLE_CURSOR_PERIOD 500
#define QEMU_RGBA(r, g, b, a) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
#define QEMU_RGB(r, g, b) QEMU_RGBA(r, g, b, 0xff)
typedef struct TextAttributes {
uint8_t fgcol:4;
uint8_t bgcol:4;
uint8_t bold:1;
uint8_t uline:1;
uint8_t blink:1;
uint8_t invers:1;
uint8_t unvisible:1;
} TextAttributes;
typedef struct TextCell {
uint8_t ch;
TextAttributes t_attrib;
} TextCell;
#define MAX_ESC_PARAMS 3
enum TTYState {
TTY_STATE_NORM,
TTY_STATE_ESC,
TTY_STATE_CSI,
};
typedef struct QEMUFIFO {
uint8_t *buf;
int buf_size;
int count, wptr, rptr;
} QEMUFIFO;
static int qemu_fifo_write(QEMUFIFO *f, const uint8_t *buf, int len1)
{
int l, len;
l = f->buf_size - f->count;
if (len1 > l)
len1 = l;
len = len1;
while (len > 0) {
l = f->buf_size - f->wptr;
if (l > len)
l = len;
memcpy(f->buf + f->wptr, buf, l);
f->wptr += l;
if (f->wptr >= f->buf_size)
f->wptr = 0;
buf += l;
len -= l;
}
f->count += len1;
return len1;
}
static int qemu_fifo_read(QEMUFIFO *f, uint8_t *buf, int len1)
{
int l, len;
if (len1 > f->count)
len1 = f->count;
len = len1;
while (len > 0) {
l = f->buf_size - f->rptr;
if (l > len)
l = len;
memcpy(buf, f->buf + f->rptr, l);
f->rptr += l;
if (f->rptr >= f->buf_size)
f->rptr = 0;
buf += l;
len -= l;
}
f->count -= len1;
return len1;
}
typedef enum {
GRAPHIC_CONSOLE,
TEXT_CONSOLE,
TEXT_CONSOLE_FIXED_SIZE
} console_type_t;
struct QemuConsole {
int index;
console_type_t console_type;
DisplayState *ds;
/* Graphic console state. */
vga_hw_update_ptr hw_update;
vga_hw_invalidate_ptr hw_invalidate;
vga_hw_screen_dump_ptr hw_screen_dump;
vga_hw_text_update_ptr hw_text_update;
void *hw;
int g_width, g_height;
/* Text console state */
int width;
int height;
int total_height;
int backscroll_height;
int x, y;
int x_saved, y_saved;
int y_displayed;
int y_base;
TextAttributes t_attrib_default; /* default text attributes */
TextAttributes t_attrib; /* currently active text attributes */
TextCell *cells;
int text_x[2], text_y[2], cursor_invalidate;
int echo;
bool cursor_visible_phase;
QEMUTimer *cursor_timer;
int update_x0;
int update_y0;
int update_x1;
int update_y1;
enum TTYState state;
int esc_params[MAX_ESC_PARAMS];
int nb_esc_params;
CharDriverState *chr;
/* fifo for key pressed */
QEMUFIFO out_fifo;
uint8_t out_fifo_buf[16];
QEMUTimer *kbd_timer;
};
static DisplayState *display_state;
static QemuConsole *active_console;
static QemuConsole *consoles[MAX_CONSOLES];
static int nb_consoles = 0;
void vga_hw_update(void)
{
if (active_console && active_console->hw_update)
active_console->hw_update(active_console->hw);
}
void vga_hw_invalidate(void)
{
if (active_console && active_console->hw_invalidate)
active_console->hw_invalidate(active_console->hw);
}
void qmp_screendump(const char *filename, Error **errp)
{
QemuConsole *previous_active_console;
bool cswitch;
previous_active_console = active_console;
cswitch = previous_active_console && previous_active_console->index != 0;
/* There is currently no way of specifying which screen we want to dump,
so always dump the first one. */
if (cswitch) {
console_select(0);
}
if (consoles[0] && consoles[0]->hw_screen_dump) {
consoles[0]->hw_screen_dump(consoles[0]->hw, filename, cswitch, errp);
} else {
error_setg(errp, "device doesn't support screendump");
}
if (cswitch) {
console_select(previous_active_console->index);
}
}
void vga_hw_text_update(console_ch_t *chardata)
{
if (active_console && active_console->hw_text_update)
active_console->hw_text_update(active_console->hw, chardata);
}
static void vga_fill_rect(QemuConsole *con,
int posx, int posy, int width, int height,
uint32_t color)
{
DisplaySurface *surface = qemu_console_surface(con);
uint8_t *d, *d1;
int x, y, bpp;
bpp = surface_bytes_per_pixel(surface);
d1 = surface_data(surface) +
surface_stride(surface) * 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 += surface_stride(surface);
}
}
/* copy from (xs, ys) to (xd, yd) a rectangle of size (w, h) */
static void vga_bitblt(QemuConsole *con,
int xs, int ys, int xd, int yd, int w, int h)
{
DisplaySurface *surface = qemu_console_surface(con);
const uint8_t *s;
uint8_t *d;
int wb, y, bpp;
bpp = surface_bytes_per_pixel(surface);
wb = w * bpp;
if (yd <= ys) {
s = surface_data(surface) +
surface_stride(surface) * ys + bpp * xs;
d = surface_data(surface) +
surface_stride(surface) * yd + bpp * xd;
for (y = 0; y < h; y++) {
memmove(d, s, wb);
d += surface_stride(surface);
s += surface_stride(surface);
}
} else {
s = surface_data(surface) +
surface_stride(surface) * (ys + h - 1) + bpp * xs;
d = surface_data(surface) +
surface_stride(surface) * (yd + h - 1) + bpp * xd;
for (y = 0; y < h; y++) {
memmove(d, s, wb);
d -= surface_stride(surface);
s -= surface_stride(surface);
}
}
}
/***********************************************************/
/* 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 HOST_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),
};
#ifndef CONFIG_CURSES
enum color_names {
COLOR_BLACK = 0,
COLOR_RED = 1,
COLOR_GREEN = 2,
COLOR_YELLOW = 3,
COLOR_BLUE = 4,
COLOR_MAGENTA = 5,
COLOR_CYAN = 6,
COLOR_WHITE = 7
};
#endif
static const uint32_t color_table_rgb[2][8] = {
{ /* dark */
QEMU_RGB(0x00, 0x00, 0x00), /* black */
QEMU_RGB(0xaa, 0x00, 0x00), /* red */
QEMU_RGB(0x00, 0xaa, 0x00), /* green */
QEMU_RGB(0xaa, 0xaa, 0x00), /* yellow */
QEMU_RGB(0x00, 0x00, 0xaa), /* blue */
QEMU_RGB(0xaa, 0x00, 0xaa), /* magenta */
QEMU_RGB(0x00, 0xaa, 0xaa), /* cyan */
QEMU_RGB(0xaa, 0xaa, 0xaa), /* white */
},
{ /* bright */
QEMU_RGB(0x00, 0x00, 0x00), /* black */
QEMU_RGB(0xff, 0x00, 0x00), /* red */
QEMU_RGB(0x00, 0xff, 0x00), /* green */
QEMU_RGB(0xff, 0xff, 0x00), /* yellow */
QEMU_RGB(0x00, 0x00, 0xff), /* blue */
QEMU_RGB(0xff, 0x00, 0xff), /* magenta */
QEMU_RGB(0x00, 0xff, 0xff), /* cyan */
QEMU_RGB(0xff, 0xff, 0xff), /* white */
}
};
#ifdef DEBUG_CONSOLE
static void console_print_text_attributes(TextAttributes *t_attrib, char ch)
{
if (t_attrib->bold) {
printf("b");
} else {
printf(" ");
}
if (t_attrib->uline) {
printf("u");
} else {
printf(" ");
}
if (t_attrib->blink) {
printf("l");
} else {
printf(" ");
}
if (t_attrib->invers) {
printf("i");
} else {
printf(" ");
}
if (t_attrib->unvisible) {
printf("n");
} else {
printf(" ");
}
printf(" fg: %d bg: %d ch:'%2X' '%c'\n", t_attrib->fgcol, t_attrib->bgcol, ch, ch);
}
#endif
static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
TextAttributes *t_attrib)
{
DisplaySurface *surface = qemu_console_surface(s);
uint8_t *d;
const uint8_t *font_ptr;
unsigned int font_data, linesize, xorcol, bpp;
int i;
unsigned int fgcol, bgcol;
#ifdef DEBUG_CONSOLE
printf("x: %2i y: %2i", x, y);
console_print_text_attributes(t_attrib, ch);
#endif
if (t_attrib->invers) {
bgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
fgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
} else {
fgcol = color_table_rgb[t_attrib->bold][t_attrib->fgcol];
bgcol = color_table_rgb[t_attrib->bold][t_attrib->bgcol];
}
bpp = surface_bytes_per_pixel(surface);
d = surface_data(surface) +
surface_stride(surface) * y * FONT_HEIGHT + bpp * x * FONT_WIDTH;
linesize = surface_stride(surface);
font_ptr = vgafont16 + FONT_HEIGHT * ch;
xorcol = bgcol ^ fgcol;
switch (surface_bits_per_pixel(surface)) {
case 8:
for(i = 0; i < FONT_HEIGHT; i++) {
font_data = *font_ptr++;
if (t_attrib->uline
&& ((i == FONT_HEIGHT - 2) || (i == FONT_HEIGHT - 3))) {
font_data = 0xFF;
}
((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++;
if (t_attrib->uline
&& ((i == FONT_HEIGHT - 2) || (i == FONT_HEIGHT - 3))) {
font_data = 0xFF;
}
((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++;
if (t_attrib->uline && ((i == FONT_HEIGHT - 2) || (i == FONT_HEIGHT - 3))) {
font_data = 0xFF;
}
((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(QemuConsole *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 = g_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->t_attrib = s->t_attrib_default;
c++;
}
}
g_free(s->cells);
s->cells = cells;
}
static inline void text_update_xy(QemuConsole *s, int x, int y)
{
s->text_x[0] = MIN(s->text_x[0], x);
s->text_x[1] = MAX(s->text_x[1], x);
s->text_y[0] = MIN(s->text_y[0], y);
s->text_y[1] = MAX(s->text_y[1], y);
}
static void invalidate_xy(QemuConsole *s, int x, int y)
{
if (s->update_x0 > x * FONT_WIDTH)
s->update_x0 = x * FONT_WIDTH;
if (s->update_y0 > y * FONT_HEIGHT)
s->update_y0 = y * FONT_HEIGHT;
if (s->update_x1 < (x + 1) * FONT_WIDTH)
s->update_x1 = (x + 1) * FONT_WIDTH;
if (s->update_y1 < (y + 1) * FONT_HEIGHT)
s->update_y1 = (y + 1) * FONT_HEIGHT;
}
static void update_xy(QemuConsole *s, int x, int y)
{
TextCell *c;
int y1, y2;
if (s != active_console) {
return;
}
if (s->ds->have_text) {
text_update_xy(s, x, y);
}
if (s->ds->have_gfx) {
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, x, y2, c->ch,
&(c->t_attrib));
invalidate_xy(s, x, y2);
}
}
}
static void console_show_cursor(QemuConsole *s, int show)
{
TextCell *c;
int y, y1;
int x = s->x;
if (s != active_console) {
return;
}
if (s->ds->have_text) {
s->cursor_invalidate = 1;
}
if (s->ds->have_gfx) {
if (x >= s->width) {
x = s->width - 1;
}
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 + x];
if (show && s->cursor_visible_phase) {
TextAttributes t_attrib = s->t_attrib_default;
t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
vga_putcharxy(s, x, y, c->ch, &t_attrib);
} else {
vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
}
invalidate_xy(s, x, y);
}
}
}
static void console_refresh(QemuConsole *s)
{
DisplaySurface *surface = qemu_console_surface(s);
TextCell *c;
int x, y, y1;
if (s != active_console)
return;
if (s->ds->have_text) {
s->text_x[0] = 0;
s->text_y[0] = 0;
s->text_x[1] = s->width - 1;
s->text_y[1] = s->height - 1;
s->cursor_invalidate = 1;
}
if (s->ds->have_gfx) {
vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
color_table_rgb[0][COLOR_BLACK]);
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, x, y, c->ch,
&(c->t_attrib));
c++;
}
if (++y1 == s->total_height) {
y1 = 0;
}
}
console_show_cursor(s, 1);
dpy_gfx_update(s, 0, 0,
surface_width(surface), surface_height(surface));
}
}
static void console_scroll(int ydelta)
{
QemuConsole *s;
int i, y1;
s = active_console;
if (!s || (s->console_type == GRAPHIC_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(QemuConsole *s)
{
TextCell *c;
int x, y1;
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->t_attrib = s->t_attrib_default;
c++;
}
if (s == active_console && s->y_displayed == s->y_base) {
if (s->ds->have_text) {
s->text_x[0] = 0;
s->text_y[0] = 0;
s->text_x[1] = s->width - 1;
s->text_y[1] = s->height - 1;
}
if (s->ds->have_gfx) {
vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
s->width * FONT_WIDTH,
(s->height - 1) * FONT_HEIGHT);
vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
s->width * FONT_WIDTH, FONT_HEIGHT,
color_table_rgb[0][s->t_attrib_default.bgcol]);
s->update_x0 = 0;
s->update_y0 = 0;
s->update_x1 = s->width * FONT_WIDTH;
s->update_y1 = s->height * FONT_HEIGHT;
}
}
}
}
/* Set console attributes depending on the current escape codes.
* NOTE: I know this code is not very efficient (checking every color for it
* self) but it is more readable and better maintainable.
*/
static void console_handle_escape(QemuConsole *s)
{
int i;
for (i=0; i<s->nb_esc_params; i++) {
switch (s->esc_params[i]) {
case 0: /* reset all console attributes to default */
s->t_attrib = s->t_attrib_default;
break;
case 1:
s->t_attrib.bold = 1;
break;
case 4:
s->t_attrib.uline = 1;
break;
case 5:
s->t_attrib.blink = 1;
break;
case 7:
s->t_attrib.invers = 1;
break;
case 8:
s->t_attrib.unvisible = 1;
break;
case 22:
s->t_attrib.bold = 0;
break;
case 24:
s->t_attrib.uline = 0;
break;
case 25:
s->t_attrib.blink = 0;
break;
case 27:
s->t_attrib.invers = 0;
break;
case 28:
s->t_attrib.unvisible = 0;
break;
/* set foreground color */
case 30:
s->t_attrib.fgcol=COLOR_BLACK;
break;
case 31:
s->t_attrib.fgcol=COLOR_RED;
break;
case 32:
s->t_attrib.fgcol=COLOR_GREEN;
break;
case 33:
s->t_attrib.fgcol=COLOR_YELLOW;
break;
case 34:
s->t_attrib.fgcol=COLOR_BLUE;
break;
case 35:
s->t_attrib.fgcol=COLOR_MAGENTA;
break;
case 36:
s->t_attrib.fgcol=COLOR_CYAN;
break;
case 37:
s->t_attrib.fgcol=COLOR_WHITE;
break;
/* set background color */
case 40:
s->t_attrib.bgcol=COLOR_BLACK;
break;
case 41:
s->t_attrib.bgcol=COLOR_RED;
break;
case 42:
s->t_attrib.bgcol=COLOR_GREEN;
break;
case 43:
s->t_attrib.bgcol=COLOR_YELLOW;
break;
case 44:
s->t_attrib.bgcol=COLOR_BLUE;
break;
case 45:
s->t_attrib.bgcol=COLOR_MAGENTA;
break;
case 46:
s->t_attrib.bgcol=COLOR_CYAN;
break;
case 47:
s->t_attrib.bgcol=COLOR_WHITE;
break;
}
}
}
static void console_clear_xy(QemuConsole *s, int x, int y)
{
int y1 = (s->y_base + y) % s->total_height;
TextCell *c = &s->cells[y1 * s->width + x];
c->ch = ' ';
c->t_attrib = s->t_attrib_default;
update_xy(s, x, y);
}
/* set cursor, checking bounds */
static void set_cursor(QemuConsole *s, int x, int y)
{
if (x < 0) {
x = 0;
}
if (y < 0) {
y = 0;
}
if (y >= s->height) {
y = s->height - 1;
}
if (x >= s->width) {
x = s->width - 1;
}
s->x = x;
s->y = y;
}
static void console_putchar(QemuConsole *s, int ch)
{
TextCell *c;
int y1, i;
int x, y;
switch(s->state) {
case TTY_STATE_NORM:
switch(ch) {
case '\r': /* carriage return */
s->x = 0;
break;
case '\n': /* newline */
console_put_lf(s);
break;
case '\b': /* backspace */
if (s->x > 0)
s->x--;
break;
case '\t': /* tabspace */
if (s->x + (8 - (s->x % 8)) > s->width) {
s->x = 0;
console_put_lf(s);
} else {
s->x = s->x + (8 - (s->x % 8));
}
break;
case '\a': /* alert aka. bell */
/* TODO: has to be implemented */
break;
case 14:
/* SI (shift in), character set 0 (ignored) */
break;
case 15:
/* SO (shift out), character set 1 (ignored) */
break;
case 27: /* esc (introducing an escape sequence) */
s->state = TTY_STATE_ESC;
break;
default:
if (s->x >= s->width) {
/* line wrap */
s->x = 0;
console_put_lf(s);
}
y1 = (s->y_base + s->y) % s->total_height;
c = &s->cells[y1 * s->width + s->x];
c->ch = ch;
c->t_attrib = s->t_attrib;
update_xy(s, s->x, s->y);
s->x++;
break;
}
break;
case TTY_STATE_ESC: /* check if it is a terminal escape sequence */
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: /* handle escape sequence parameters */
if (ch >= '0' && ch <= '9') {
if (s->nb_esc_params < MAX_ESC_PARAMS) {
int *param = &s->esc_params[s->nb_esc_params];
int digit = (ch - '0');
*param = (*param <= (INT_MAX - digit) / 10) ?
*param * 10 + digit : INT_MAX;
}
} else {
if (s->nb_esc_params < MAX_ESC_PARAMS)
s->nb_esc_params++;
if (ch == ';')
break;
#ifdef DEBUG_CONSOLE
fprintf(stderr, "escape sequence CSI%d;%d%c, %d parameters\n",
s->esc_params[0], s->esc_params[1], ch, s->nb_esc_params);
#endif
s->state = TTY_STATE_NORM;
switch(ch) {
case 'A':
/* move cursor up */
if (s->esc_params[0] == 0) {
s->esc_params[0] = 1;
}
set_cursor(s, s->x, s->y - s->esc_params[0]);
break;
case 'B':
/* move cursor down */
if (s->esc_params[0] == 0) {
s->esc_params[0] = 1;
}
set_cursor(s, s->x, s->y + s->esc_params[0]);
break;
case 'C':
/* move cursor right */
if (s->esc_params[0] == 0) {
s->esc_params[0] = 1;
}
set_cursor(s, s->x + s->esc_params[0], s->y);
break;
case 'D':
/* move cursor left */
if (s->esc_params[0] == 0) {
s->esc_params[0] = 1;
}
set_cursor(s, s->x - s->esc_params[0], s->y);
break;
case 'G':
/* move cursor to column */
set_cursor(s, s->esc_params[0] - 1, s->y);
break;
case 'f':
case 'H':
/* move cursor to row, column */
set_cursor(s, s->esc_params[1] - 1, s->esc_params[0] - 1);
break;
case 'J':
switch (s->esc_params[0]) {
case 0:
/* clear to end of screen */
for (y = s->y; y < s->height; y++) {
for (x = 0; x < s->width; x++) {
if (y == s->y && x < s->x) {
continue;
}
console_clear_xy(s, x, y);
}
}
break;
case 1:
/* clear from beginning of screen */
for (y = 0; y <= s->y; y++) {
for (x = 0; x < s->width; x++) {
if (y == s->y && x > s->x) {
break;
}
console_clear_xy(s, x, y);
}
}
break;
case 2:
/* clear entire screen */
for (y = 0; y <= s->height; y++) {
for (x = 0; x < s->width; x++) {
console_clear_xy(s, x, y);
}
}
break;
}
break;
case 'K':
switch (s->esc_params[0]) {
case 0:
/* clear to eol */
for(x = s->x; x < s->width; x++) {
console_clear_xy(s, x, s->y);
}
break;
case 1:
/* clear from beginning of line */
for (x = 0; x <= s->x; x++) {
console_clear_xy(s, x, s->y);
}
break;
case 2:
/* clear entire line */
for(x = 0; x < s->width; x++) {
console_clear_xy(s, x, s->y);
}
break;
}
break;
case 'm':
console_handle_escape(s);
break;
case 'n':
/* report cursor position */
/* TODO: send ESC[row;colR */
break;
case 's':
/* save cursor position */
s->x_saved = s->x;
s->y_saved = s->y;
break;
case 'u':
/* restore cursor position */
s->x = s->x_saved;
s->y = s->y_saved;
break;
default:
#ifdef DEBUG_CONSOLE
fprintf(stderr, "unhandled escape character '%c'\n", ch);
#endif
break;
}
break;
}
}
}
void console_select(unsigned int index)
{
DisplaySurface *surface;
QemuConsole *s;
if (index >= MAX_CONSOLES)
return;
if (active_console) {
surface = qemu_console_surface(active_console);
active_console->g_width = surface_width(surface);
active_console->g_height = surface_height(surface);
}
s = consoles[index];
if (s) {
DisplayState *ds = s->ds;
if (active_console && active_console->cursor_timer) {
qemu_del_timer(active_console->cursor_timer);
}
active_console = s;
if (ds->have_gfx) {
surface = qemu_create_displaysurface(s->g_width, s->g_height);
dpy_gfx_replace_surface(s, surface);
}
if (ds->have_text) {
dpy_text_resize(s, s->width, s->height);
}
if (s->cursor_timer) {
qemu_mod_timer(s->cursor_timer,
qemu_get_clock_ms(rt_clock) + CONSOLE_CURSOR_PERIOD / 2);
}
vga_hw_invalidate();
}
}
static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
{
QemuConsole *s = chr->opaque;
int i;
s->update_x0 = s->width * FONT_WIDTH;
s->update_y0 = s->height * FONT_HEIGHT;
s->update_x1 = 0;
s->update_y1 = 0;
console_show_cursor(s, 0);
for(i = 0; i < len; i++) {
console_putchar(s, buf[i]);
}
console_show_cursor(s, 1);
if (s->ds->have_gfx && s->update_x0 < s->update_x1) {
dpy_gfx_update(s, s->update_x0, s->update_y0,
s->update_x1 - s->update_x0,
s->update_y1 - s->update_y0);
}
return len;
}
static void kbd_send_chars(void *opaque)
{
QemuConsole *s = opaque;
int len;
uint8_t buf[16];
len = qemu_chr_be_can_write(s->chr);
if (len > s->out_fifo.count)
len = s->out_fifo.count;
if (len > 0) {
if (len > sizeof(buf))
len = sizeof(buf);
qemu_fifo_read(&s->out_fifo, buf, len);
qemu_chr_be_write(s->chr, buf, len);
}
/* characters are pending: we send them a bit later (XXX:
horrible, should change char device API) */
if (s->out_fifo.count > 0) {
qemu_mod_timer(s->kbd_timer, qemu_get_clock_ms(rt_clock) + 1);
}
}
/* called when an ascii key is pressed */
void kbd_put_keysym(int keysym)
{
QemuConsole *s;
uint8_t buf[16], *q;
int c;
s = active_console;
if (!s || (s->console_type == GRAPHIC_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:
/* 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 if (s->echo && (keysym == '\r' || keysym == '\n')) {
console_puts(s->chr, (const uint8_t *) "\r", 1);
*q++ = '\n';
} else {
*q++ = keysym;
}
if (s->echo) {
console_puts(s->chr, buf, q - buf);
}
if (s->chr->chr_read) {
qemu_fifo_write(&s->out_fifo, buf, q - buf);
kbd_send_chars(s);
}
break;
}
}
static void text_console_invalidate(void *opaque)
{
QemuConsole *s = (QemuConsole *) opaque;
DisplaySurface *surface = qemu_console_surface(s);
if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
s->g_width = surface_width(surface);
s->g_height = surface_height(surface);
text_console_resize(s);
}
console_refresh(s);
}
static void text_console_update(void *opaque, console_ch_t *chardata)
{
QemuConsole *s = (QemuConsole *) opaque;
int i, j, src;
if (s->text_x[0] <= s->text_x[1]) {
src = (s->y_base + s->text_y[0]) * s->width;
chardata += s->text_y[0] * s->width;
for (i = s->text_y[0]; i <= s->text_y[1]; i ++)
for (j = 0; j < s->width; j ++, src ++)
console_write_ch(chardata ++, s->cells[src].ch |
(s->cells[src].t_attrib.fgcol << 12) |
(s->cells[src].t_attrib.bgcol << 8) |
(s->cells[src].t_attrib.bold << 21));
dpy_text_update(s, s->text_x[0], s->text_y[0],
s->text_x[1] - s->text_x[0], i - s->text_y[0]);
s->text_x[0] = s->width;
s->text_y[0] = s->height;
s->text_x[1] = 0;
s->text_y[1] = 0;
}
if (s->cursor_invalidate) {
dpy_text_cursor(s, s->x, s->y);
s->cursor_invalidate = 0;
}
}
static QemuConsole *new_console(DisplayState *ds, console_type_t console_type)
{
QemuConsole *s;
int i;
if (nb_consoles >= MAX_CONSOLES)
return NULL;
s = g_malloc0(sizeof(QemuConsole));
if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
(console_type == GRAPHIC_CONSOLE))) {
active_console = s;
}
s->ds = ds;
s->console_type = console_type;
if (console_type != GRAPHIC_CONSOLE) {
s->index = nb_consoles;
consoles[nb_consoles++] = s;
} else {
/* HACK: Put graphical consoles before text consoles. */
for (i = nb_consoles; i > 0; i--) {
if (consoles[i - 1]->console_type == GRAPHIC_CONSOLE)
break;
consoles[i] = consoles[i - 1];
consoles[i]->index = i;
}
s->index = i;
consoles[i] = s;
nb_consoles++;
}
return s;
}
static void qemu_alloc_display(DisplaySurface *surface, int width, int height,
int linesize, PixelFormat pf, int newflags)
{
surface->pf = pf;
qemu_pixman_image_unref(surface->image);
surface->image = NULL;
surface->format = qemu_pixman_get_format(&pf);
assert(surface->format != 0);
surface->image = pixman_image_create_bits(surface->format,
width, height,
NULL, linesize);
assert(surface->image != NULL);
surface->flags = newflags | QEMU_ALLOCATED_FLAG;
#ifdef HOST_WORDS_BIGENDIAN
surface->flags |= QEMU_BIG_ENDIAN_FLAG;
#endif
}
DisplaySurface *qemu_create_displaysurface(int width, int height)
{
DisplaySurface *surface = g_new0(DisplaySurface, 1);
int linesize = width * 4;
trace_displaysurface_create(surface, width, height);
qemu_alloc_display(surface, width, height, linesize,
qemu_default_pixelformat(32), 0);
return surface;
}
DisplaySurface *qemu_create_displaysurface_from(int width, int height, int bpp,
int linesize, uint8_t *data,
bool byteswap)
{
DisplaySurface *surface = g_new0(DisplaySurface, 1);
trace_displaysurface_create_from(surface, width, height, bpp, byteswap);
if (byteswap) {
surface->pf = qemu_different_endianness_pixelformat(bpp);
} else {
surface->pf = qemu_default_pixelformat(bpp);
}
surface->format = qemu_pixman_get_format(&surface->pf);
assert(surface->format != 0);
surface->image = pixman_image_create_bits(surface->format,
width, height,
(void *)data, linesize);
assert(surface->image != NULL);
#ifdef HOST_WORDS_BIGENDIAN
surface->flags = QEMU_BIG_ENDIAN_FLAG;
#endif
return surface;
}
void qemu_free_displaysurface(DisplaySurface *surface)
{
if (surface == NULL) {
return;
}
trace_displaysurface_free(surface);
qemu_pixman_image_unref(surface->image);
g_free(surface);
}
void register_displaychangelistener(DisplayState *ds,
DisplayChangeListener *dcl)
{
trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
dcl->ds = ds;
QLIST_INSERT_HEAD(&ds->listeners, dcl, next);
gui_setup_refresh(ds);
if (dcl->ops->dpy_gfx_switch) {
dcl->ops->dpy_gfx_switch(dcl, ds->surface);
}
}
void unregister_displaychangelistener(DisplayChangeListener *dcl)
{
DisplayState *ds = dcl->ds;
trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
QLIST_REMOVE(dcl, next);
gui_setup_refresh(ds);
}
void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
int width = pixman_image_get_width(s->surface->image);
int height = pixman_image_get_height(s->surface->image);
x = MAX(x, 0);
y = MAX(y, 0);
x = MIN(x, width);
y = MIN(y, height);
w = MIN(w, width - x);
h = MIN(h, height - y);
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_gfx_update) {
dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
}
}
}
void dpy_gfx_replace_surface(QemuConsole *con,
DisplaySurface *surface)
{
DisplayState *s = con->ds;
DisplaySurface *old_surface = s->surface;
struct DisplayChangeListener *dcl;
s->surface = surface;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_gfx_switch) {
dcl->ops->dpy_gfx_switch(dcl, surface);
}
}
qemu_free_displaysurface(old_surface);
}
void dpy_refresh(DisplayState *s)
{
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_refresh) {
dcl->ops->dpy_refresh(dcl);
}
}
}
void dpy_gfx_copy(QemuConsole *con, int src_x, int src_y,
int dst_x, int dst_y, int w, int h)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_gfx_copy) {
dcl->ops->dpy_gfx_copy(dcl, src_x, src_y, dst_x, dst_y, w, h);
} else { /* TODO */
dcl->ops->dpy_gfx_update(dcl, dst_x, dst_y, w, h);
}
}
}
void dpy_text_cursor(QemuConsole *con, int x, int y)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_text_cursor) {
dcl->ops->dpy_text_cursor(dcl, x, y);
}
}
}
void dpy_text_update(QemuConsole *con, int x, int y, int w, int h)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_text_update) {
dcl->ops->dpy_text_update(dcl, x, y, w, h);
}
}
}
void dpy_text_resize(QemuConsole *con, int w, int h)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_text_resize) {
dcl->ops->dpy_text_resize(dcl, w, h);
}
}
}
void dpy_mouse_set(QemuConsole *con, int x, int y, int on)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_mouse_set) {
dcl->ops->dpy_mouse_set(dcl, x, y, on);
}
}
}
void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_cursor_define) {
dcl->ops->dpy_cursor_define(dcl, cursor);
}
}
}
bool dpy_cursor_define_supported(QemuConsole *con)
{
DisplayState *s = con->ds;
struct DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_cursor_define) {
return true;
}
}
return false;
}
static void dumb_display_init(void)
{
DisplayState *ds = g_malloc0(sizeof(DisplayState));
int width = 640;
int height = 480;
if (is_fixedsize_console()) {
width = active_console->g_width;
height = active_console->g_height;
}
ds->surface = qemu_create_displaysurface(width, height);
register_displaystate(ds);
}
/***********************************************************/
/* register display */
void register_displaystate(DisplayState *ds)
{
DisplayState **s;
s = &display_state;
while (*s != NULL)
s = &(*s)->next;
ds->next = NULL;
*s = ds;
}
DisplayState *get_displaystate(void)
{
if (!display_state) {
dumb_display_init ();
}
return display_state;
}
QemuConsole *graphic_console_init(vga_hw_update_ptr update,
vga_hw_invalidate_ptr invalidate,
vga_hw_screen_dump_ptr screen_dump,
vga_hw_text_update_ptr text_update,
void *opaque)
{
QemuConsole *s;
DisplayState *ds;
ds = (DisplayState *) g_malloc0(sizeof(DisplayState));
s = new_console(ds, GRAPHIC_CONSOLE);
s->hw_update = update;
s->hw_invalidate = invalidate;
s->hw_screen_dump = screen_dump;
s->hw_text_update = text_update;
s->hw = opaque;
ds->surface = qemu_create_displaysurface(640, 480);
register_displaystate(ds);
return s;
}
int is_graphic_console(void)
{
return active_console && active_console->console_type == GRAPHIC_CONSOLE;
}
int is_fixedsize_console(void)
{
return active_console && active_console->console_type != TEXT_CONSOLE;
}
static void text_console_set_echo(CharDriverState *chr, bool echo)
{
QemuConsole *s = chr->opaque;
s->echo = echo;
}
static void text_console_update_cursor(void *opaque)
{
QemuConsole *s = opaque;
s->cursor_visible_phase = !s->cursor_visible_phase;
vga_hw_invalidate();
qemu_mod_timer(s->cursor_timer,
qemu_get_clock_ms(rt_clock) + CONSOLE_CURSOR_PERIOD / 2);
}
static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
{
QemuConsole *s;
s = chr->opaque;
chr->chr_write = console_puts;
s->out_fifo.buf = s->out_fifo_buf;
s->out_fifo.buf_size = sizeof(s->out_fifo_buf);
s->kbd_timer = qemu_new_timer_ms(rt_clock, kbd_send_chars, s);
s->ds = ds;
s->y_displayed = 0;
s->y_base = 0;
s->total_height = DEFAULT_BACKSCROLL;
s->x = 0;
s->y = 0;
if (s->console_type == TEXT_CONSOLE) {
s->g_width = surface_width(s->ds->surface);
s->g_height = surface_height(s->ds->surface);
}
s->cursor_timer =
qemu_new_timer_ms(rt_clock, text_console_update_cursor, s);
s->hw_invalidate = text_console_invalidate;
s->hw_text_update = text_console_update;
s->hw = s;
/* Set text attribute defaults */
s->t_attrib_default.bold = 0;
s->t_attrib_default.uline = 0;
s->t_attrib_default.blink = 0;
s->t_attrib_default.invers = 0;
s->t_attrib_default.unvisible = 0;
s->t_attrib_default.fgcol = COLOR_WHITE;
s->t_attrib_default.bgcol = COLOR_BLACK;
/* set current text attributes to default */
s->t_attrib = s->t_attrib_default;
text_console_resize(s);
if (chr->label) {
char msg[128];
int len;
s->t_attrib.bgcol = COLOR_BLUE;
len = snprintf(msg, sizeof(msg), "%s console\r\n", chr->label);
console_puts(chr, (uint8_t*)msg, len);
s->t_attrib = s->t_attrib_default;
}
qemu_chr_be_generic_open(chr);
if (chr->init)
chr->init(chr);
}
static CharDriverState *text_console_init(ChardevVC *vc)
{
CharDriverState *chr;
QemuConsole *s;
unsigned width = 0;
unsigned height = 0;
chr = g_malloc0(sizeof(CharDriverState));
if (vc->has_width) {
width = vc->width;
} else if (vc->has_cols) {
width = vc->cols * FONT_WIDTH;
}
if (vc->has_height) {
height = vc->height;
} else if (vc->has_rows) {
height = vc->rows * FONT_HEIGHT;
}
if (width == 0 || height == 0) {
s = new_console(NULL, TEXT_CONSOLE);
} else {
s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE);
}
if (!s) {
g_free(chr);
return NULL;
}
s->chr = chr;
s->g_width = width;
s->g_height = height;
chr->opaque = s;
chr->chr_set_echo = text_console_set_echo;
return chr;
}
static VcHandler *vc_handler = text_console_init;
CharDriverState *vc_init(ChardevVC *vc)
{
return vc_handler(vc);
}
void register_vc_handler(VcHandler *handler)
{
vc_handler = handler;
}
void text_consoles_set_display(DisplayState *ds)
{
int i;
for (i = 0; i < nb_consoles; i++) {
if (consoles[i]->console_type != GRAPHIC_CONSOLE) {
text_console_do_init(consoles[i]->chr, ds);
}
}
}
void qemu_console_resize(QemuConsole *s, int width, int height)
{
s->g_width = width;
s->g_height = height;
if (is_graphic_console()) {
DisplaySurface *surface;
surface = qemu_create_displaysurface(width, height);
dpy_gfx_replace_surface(s, surface);
}
}
void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
int dst_x, int dst_y, int w, int h)
{
if (is_graphic_console()) {
dpy_gfx_copy(con, src_x, src_y, dst_x, dst_y, w, h);
}
}
DisplaySurface *qemu_console_surface(QemuConsole *console)
{
return console->ds->surface;
}
DisplayState *qemu_console_displaystate(QemuConsole *console)
{
return console->ds;
}
PixelFormat qemu_different_endianness_pixelformat(int bpp)
{
PixelFormat pf;
memset(&pf, 0x00, sizeof(PixelFormat));
pf.bits_per_pixel = bpp;
pf.bytes_per_pixel = DIV_ROUND_UP(bpp, 8);
pf.depth = bpp == 32 ? 24 : bpp;
switch (bpp) {
case 24:
pf.rmask = 0x000000FF;
pf.gmask = 0x0000FF00;
pf.bmask = 0x00FF0000;
pf.rmax = 255;
pf.gmax = 255;
pf.bmax = 255;
pf.rshift = 0;
pf.gshift = 8;
pf.bshift = 16;
pf.rbits = 8;
pf.gbits = 8;
pf.bbits = 8;
break;
case 32:
pf.rmask = 0x0000FF00;
pf.gmask = 0x00FF0000;
pf.bmask = 0xFF000000;
pf.amask = 0x00000000;
pf.amax = 255;
pf.rmax = 255;
pf.gmax = 255;
pf.bmax = 255;
pf.ashift = 0;
pf.rshift = 8;
pf.gshift = 16;
pf.bshift = 24;
pf.rbits = 8;
pf.gbits = 8;
pf.bbits = 8;
pf.abits = 8;
break;
default:
break;
}
return pf;
}
PixelFormat qemu_default_pixelformat(int bpp)
{
PixelFormat pf;
memset(&pf, 0x00, sizeof(PixelFormat));
pf.bits_per_pixel = bpp;
pf.bytes_per_pixel = DIV_ROUND_UP(bpp, 8);
pf.depth = bpp == 32 ? 24 : bpp;
switch (bpp) {
case 15:
pf.bits_per_pixel = 16;
pf.rmask = 0x00007c00;
pf.gmask = 0x000003E0;
pf.bmask = 0x0000001F;
pf.rmax = 31;
pf.gmax = 31;
pf.bmax = 31;
pf.rshift = 10;
pf.gshift = 5;
pf.bshift = 0;
pf.rbits = 5;
pf.gbits = 5;
pf.bbits = 5;
break;
case 16:
pf.rmask = 0x0000F800;
pf.gmask = 0x000007E0;
pf.bmask = 0x0000001F;
pf.rmax = 31;
pf.gmax = 63;
pf.bmax = 31;
pf.rshift = 11;
pf.gshift = 5;
pf.bshift = 0;
pf.rbits = 5;
pf.gbits = 6;
pf.bbits = 5;
break;
case 24:
pf.rmask = 0x00FF0000;
pf.gmask = 0x0000FF00;
pf.bmask = 0x000000FF;
pf.rmax = 255;
pf.gmax = 255;
pf.bmax = 255;
pf.rshift = 16;
pf.gshift = 8;
pf.bshift = 0;
pf.rbits = 8;
pf.gbits = 8;
pf.bbits = 8;
break;
case 32:
pf.rmask = 0x00FF0000;
pf.gmask = 0x0000FF00;
pf.bmask = 0x000000FF;
pf.rmax = 255;
pf.gmax = 255;
pf.bmax = 255;
pf.rshift = 16;
pf.gshift = 8;
pf.bshift = 0;
pf.rbits = 8;
pf.gbits = 8;
pf.bbits = 8;
break;
default:
break;
}
return pf;
}
static void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend,
Error **errp)
{
int val;
backend->vc = g_new0(ChardevVC, 1);
val = qemu_opt_get_number(opts, "width", 0);
if (val != 0) {
backend->vc->has_width = true;
backend->vc->width = val;
}
val = qemu_opt_get_number(opts, "height", 0);
if (val != 0) {
backend->vc->has_height = true;
backend->vc->height = val;
}
val = qemu_opt_get_number(opts, "cols", 0);
if (val != 0) {
backend->vc->has_cols = true;
backend->vc->cols = val;
}
val = qemu_opt_get_number(opts, "rows", 0);
if (val != 0) {
backend->vc->has_rows = true;
backend->vc->rows = val;
}
}
static void register_types(void)
{
register_char_driver_qapi("vc", CHARDEV_BACKEND_KIND_VC,
qemu_chr_parse_vc);
}
type_init(register_types);
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