qemu-e2k/console.c

1710 lines
47 KiB
C
Raw Normal View 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 "qemu-common.h"
#include "console.h"
#include "qemu-timer.h"
//#define DEBUG_CONSOLE
#define DEFAULT_BACKSCROLL 512
#define MAX_CONSOLES 12
#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;
/* ??? This is mis-named.
It is used for both text and graphical consoles. */
struct TextConsole {
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;
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;
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 TextConsole *active_console;
static TextConsole *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 vga_hw_screen_dump(const char *filename)
{
TextConsole *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);
} else {
error_report("screen dump not implemented");
}
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);
}
/* 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_get_bits_per_pixel(ds)) {
#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_get_bits_per_pixel(ds) + 7) >> 3;
d1 = ds_get_data(ds) +
ds_get_linesize(ds) * 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_get_linesize(ds);
}
}
/* 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_get_bits_per_pixel(ds) + 7) >> 3;
wb = w * bpp;
if (yd <= ys) {
s = ds_get_data(ds) +
ds_get_linesize(ds) * ys + bpp * xs;
d = ds_get_data(ds) +
ds_get_linesize(ds) * yd + bpp * xd;
for (y = 0; y < h; y++) {
memmove(d, s, wb);
d += ds_get_linesize(ds);
s += ds_get_linesize(ds);
}
} else {
s = ds_get_data(ds) +
ds_get_linesize(ds) * (ys + h - 1) + bpp * xs;
d = ds_get_data(ds) +
ds_get_linesize(ds) * (yd + h - 1) + bpp * xd;
for (y = 0; y < h; y++) {
memmove(d, s, wb);
d -= ds_get_linesize(ds);
s -= ds_get_linesize(ds);
}
}
}
/***********************************************************/
/* 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),
};
static uint32_t color_table[2][8];
#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 */
}
};
static inline unsigned int col_expand(DisplayState *ds, unsigned int col)
{
switch(ds_get_bits_per_pixel(ds)) {
case 8:
col |= col << 8;
col |= col << 16;
break;
case 15:
case 16:
col |= col << 16;
break;
default:
break;
}
return col;
}
#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(DisplayState *ds, int x, int y, int ch,
TextAttributes *t_attrib)
{
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[t_attrib->bold][t_attrib->fgcol];
fgcol = color_table[t_attrib->bold][t_attrib->bgcol];
} else {
fgcol = color_table[t_attrib->bold][t_attrib->fgcol];
bgcol = color_table[t_attrib->bold][t_attrib->bgcol];
}
bpp = (ds_get_bits_per_pixel(ds) + 7) >> 3;
d = ds_get_data(ds) +
ds_get_linesize(ds) * y * FONT_HEIGHT + bpp * x * FONT_WIDTH;
linesize = ds_get_linesize(ds);
font_ptr = vgafont16 + FONT_HEIGHT * ch;
xorcol = bgcol ^ fgcol;
switch(ds_get_bits_per_pixel(ds)) {
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(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 = 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(TextConsole *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(TextConsole *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(TextConsole *s, int x, int y)
{
TextCell *c;
int y1, y2;
if (s == active_console) {
if (!ds_get_bits_per_pixel(s->ds)) {
text_update_xy(s, x, y);
return;
}
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,
&(c->t_attrib));
invalidate_xy(s, x, y2);
}
}
}
static void console_show_cursor(TextConsole *s, int show)
{
TextCell *c;
int y, y1;
if (s == active_console) {
int x = s->x;
if (!ds_get_bits_per_pixel(s->ds)) {
s->cursor_invalidate = 1;
return;
}
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) {
TextAttributes t_attrib = s->t_attrib_default;
t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
vga_putcharxy(s->ds, x, y, c->ch, &t_attrib);
} else {
vga_putcharxy(s->ds, x, y, c->ch, &(c->t_attrib));
}
invalidate_xy(s, x, y);
}
}
}
static void console_refresh(TextConsole *s)
{
TextCell *c;
int x, y, y1;
if (s != active_console)
return;
if (!ds_get_bits_per_pixel(s->ds)) {
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;
return;
}
vga_fill_rect(s->ds, 0, 0, ds_get_width(s->ds), ds_get_height(s->ds),
color_table[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->ds, x, y, c->ch,
&(c->t_attrib));
c++;
}
if (++y1 == s->total_height)
y1 = 0;
}
console_show_cursor(s, 1);
dpy_update(s->ds, 0, 0, ds_get_width(s->ds), ds_get_height(s->ds));
}
static void console_scroll(int ydelta)
{
TextConsole *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(TextConsole *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 (!ds_get_bits_per_pixel(s->ds)) {
s->text_x[0] = 0;
s->text_y[0] = 0;
s->text_x[1] = s->width - 1;
s->text_y[1] = s->height - 1;
return;
}
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[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(TextConsole *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(TextConsole *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);
}
static void console_putchar(TextConsole *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) {
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;
#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;
}
s->y -= s->esc_params[0];
if (s->y < 0) {
s->y = 0;
}
break;
case 'B':
/* move cursor down */
if (s->esc_params[0] == 0) {
s->esc_params[0] = 1;
}
s->y += s->esc_params[0];
if (s->y >= s->height) {
s->y = s->height - 1;
}
break;
case 'C':
/* move cursor right */
if (s->esc_params[0] == 0) {
s->esc_params[0] = 1;
}
s->x += s->esc_params[0];
if (s->x >= s->width) {
s->x = s->width - 1;
}
break;
case 'D':
/* move cursor left */
if (s->esc_params[0] == 0) {
s->esc_params[0] = 1;
}
s->x -= s->esc_params[0];
if (s->x < 0) {
s->x = 0;
}
break;
case 'G':
/* move cursor to column */
s->x = s->esc_params[0] - 1;
if (s->x < 0) {
s->x = 0;
}
break;
case 'f':
case 'H':
/* move cursor to row, column */
s->x = s->esc_params[1] - 1;
if (s->x < 0) {
s->x = 0;
}
s->y = s->esc_params[0] - 1;
if (s->y < 0) {
s->y = 0;
}
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)
{
TextConsole *s;
if (index >= MAX_CONSOLES)
return;
if (active_console) {
active_console->g_width = ds_get_width(active_console->ds);
active_console->g_height = ds_get_height(active_console->ds);
}
s = consoles[index];
if (s) {
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
DisplayState *ds = s->ds;
active_console = s;
if (ds_get_bits_per_pixel(s->ds)) {
DisplayAllocator interface (Stefano Stabellini) Hi all, this patch adds a DisplayAllocator interface that allows display frontends (sdl in particular) to provide a preallocated display buffer for the graphical backend to use. Whenever a graphical backend cannot use qemu_create_displaysurface_from because its own internal pixel format cannot be exported directly (text mode or graphical mode with color depth 8 or 24), it creates another display buffer in memory using qemu_create_displaysurface and does the conversion. This new buffer needs to be blitted into the sdl surface buffer every time we need to update portions of the screen. We can avoid this using the DisplayAllocator interace: sdl provides its own implementation of qemu_create_displaysurface, giving back the sdl surface buffer directly (as we used to do before the DisplayState changes). Since the buffer returned by sdl could be in bgr format we need to put back in the handlers of that case. This approach is good if the two following conditions are true: 1) the sdl surface is a software surface that resides in main memory; 2) the host display color depth is either 16 or 32 bpp. If first condition is false we can have bad performances using sdl and vnc together. If the second condition is false performances are certainly not going to improve but they shouldn't get worse either. The first condition is always true, at least on linux/X11 systems; but I believe is true also on other platforms. The second condition is true in the vast majority of the cases. This patch should also have the good side effect of solving the sdl 2D slowness malc was reporting on MacOS, because SDL_BlitSurface is not going to be called anymore when the guest is in text mode or 24bpp. However the root problem is still present so I suspect we may still see some slowness on MacOS when the guest is in 32 or 16 bpp. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6839 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 16:02:13 +01:00
ds->surface = qemu_resize_displaysurface(ds, s->g_width, s->g_height);
} else {
s->ds->surface->width = s->width;
s->ds->surface->height = s->height;
}
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
dpy_resize(s->ds);
vga_hw_invalidate();
}
}
static int console_puts(CharDriverState *chr, const uint8_t *buf, int len)
{
TextConsole *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 (ds_get_bits_per_pixel(s->ds) && s->update_x0 < s->update_x1) {
dpy_update(s->ds, 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)
{
TextConsole *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)
{
TextConsole *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)
{
TextConsole *s = (TextConsole *) opaque;
if (!ds_get_bits_per_pixel(s->ds) && s->console_type == TEXT_CONSOLE) {
s->g_width = ds_get_width(s->ds);
s->g_height = ds_get_height(s->ds);
text_console_resize(s);
}
console_refresh(s);
}
static void text_console_update(void *opaque, console_ch_t *chardata)
{
TextConsole *s = (TextConsole *) 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_update(s->ds, 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_cursor(s->ds, s->x, s->y);
s->cursor_invalidate = 0;
}
}
static TextConsole *get_graphic_console(DisplayState *ds)
{
int i;
TextConsole *s;
for (i = 0; i < nb_consoles; i++) {
s = consoles[i];
if (s->console_type == GRAPHIC_CONSOLE && s->ds == ds)
return s;
}
return NULL;
}
static TextConsole *new_console(DisplayState *ds, console_type_t console_type)
{
TextConsole *s;
int i;
if (nb_consoles >= MAX_CONSOLES)
return NULL;
s = g_malloc0(sizeof(TextConsole));
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 DisplaySurface* defaultallocator_create_displaysurface(int width, int height)
{
DisplaySurface *surface = (DisplaySurface*) g_malloc0(sizeof(DisplaySurface));
int linesize = width * 4;
qemu_alloc_display(surface, width, height, linesize,
qemu_default_pixelformat(32), 0);
return surface;
}
static DisplaySurface* defaultallocator_resize_displaysurface(DisplaySurface *surface,
int width, int height)
{
int linesize = width * 4;
qemu_alloc_display(surface, width, height, linesize,
qemu_default_pixelformat(32), 0);
return surface;
}
void qemu_alloc_display(DisplaySurface *surface, int width, int height,
int linesize, PixelFormat pf, int newflags)
{
void *data;
surface->width = width;
surface->height = height;
surface->linesize = linesize;
surface->pf = pf;
if (surface->flags & QEMU_ALLOCATED_FLAG) {
data = g_realloc(surface->data,
surface->linesize * surface->height);
} else {
data = g_malloc(surface->linesize * surface->height);
}
surface->data = (uint8_t *)data;
surface->flags = newflags | QEMU_ALLOCATED_FLAG;
#ifdef HOST_WORDS_BIGENDIAN
surface->flags |= QEMU_BIG_ENDIAN_FLAG;
#endif
}
DisplaySurface* qemu_create_displaysurface_from(int width, int height, int bpp,
int linesize, uint8_t *data)
{
DisplaySurface *surface = (DisplaySurface*) g_malloc0(sizeof(DisplaySurface));
surface->width = width;
surface->height = height;
surface->linesize = linesize;
surface->pf = qemu_default_pixelformat(bpp);
#ifdef HOST_WORDS_BIGENDIAN
surface->flags = QEMU_BIG_ENDIAN_FLAG;
#endif
surface->data = data;
return surface;
}
static void defaultallocator_free_displaysurface(DisplaySurface *surface)
{
if (surface == NULL)
return;
if (surface->flags & QEMU_ALLOCATED_FLAG)
g_free(surface->data);
g_free(surface);
}
static struct DisplayAllocator default_allocator = {
defaultallocator_create_displaysurface,
defaultallocator_resize_displaysurface,
defaultallocator_free_displaysurface
};
static void dumb_display_init(void)
{
DisplayState *ds = g_malloc0(sizeof(DisplayState));
int width = 640;
int height = 480;
ds->allocator = &default_allocator;
if (is_fixedsize_console()) {
width = active_console->g_width;
height = active_console->g_height;
}
ds->surface = qemu_create_displaysurface(ds, 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;
}
DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
{
if(ds->allocator == &default_allocator) {
DisplaySurface *surf;
surf = da->create_displaysurface(ds_get_width(ds), ds_get_height(ds));
defaultallocator_free_displaysurface(ds->surface);
ds->surface = surf;
ds->allocator = da;
}
return ds->allocator;
}
DisplayState *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)
{
TextConsole *s;
DisplayState *ds;
ds = (DisplayState *) g_malloc0(sizeof(DisplayState));
DisplayAllocator interface (Stefano Stabellini) Hi all, this patch adds a DisplayAllocator interface that allows display frontends (sdl in particular) to provide a preallocated display buffer for the graphical backend to use. Whenever a graphical backend cannot use qemu_create_displaysurface_from because its own internal pixel format cannot be exported directly (text mode or graphical mode with color depth 8 or 24), it creates another display buffer in memory using qemu_create_displaysurface and does the conversion. This new buffer needs to be blitted into the sdl surface buffer every time we need to update portions of the screen. We can avoid this using the DisplayAllocator interace: sdl provides its own implementation of qemu_create_displaysurface, giving back the sdl surface buffer directly (as we used to do before the DisplayState changes). Since the buffer returned by sdl could be in bgr format we need to put back in the handlers of that case. This approach is good if the two following conditions are true: 1) the sdl surface is a software surface that resides in main memory; 2) the host display color depth is either 16 or 32 bpp. If first condition is false we can have bad performances using sdl and vnc together. If the second condition is false performances are certainly not going to improve but they shouldn't get worse either. The first condition is always true, at least on linux/X11 systems; but I believe is true also on other platforms. The second condition is true in the vast majority of the cases. This patch should also have the good side effect of solving the sdl 2D slowness malc was reporting on MacOS, because SDL_BlitSurface is not going to be called anymore when the guest is in text mode or 24bpp. However the root problem is still present so I suspect we may still see some slowness on MacOS when the guest is in 32 or 16 bpp. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6839 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 16:02:13 +01:00
ds->allocator = &default_allocator;
ds->surface = qemu_create_displaysurface(ds, 640, 480);
s = new_console(ds, GRAPHIC_CONSOLE);
if (s == NULL) {
DisplayAllocator interface (Stefano Stabellini) Hi all, this patch adds a DisplayAllocator interface that allows display frontends (sdl in particular) to provide a preallocated display buffer for the graphical backend to use. Whenever a graphical backend cannot use qemu_create_displaysurface_from because its own internal pixel format cannot be exported directly (text mode or graphical mode with color depth 8 or 24), it creates another display buffer in memory using qemu_create_displaysurface and does the conversion. This new buffer needs to be blitted into the sdl surface buffer every time we need to update portions of the screen. We can avoid this using the DisplayAllocator interace: sdl provides its own implementation of qemu_create_displaysurface, giving back the sdl surface buffer directly (as we used to do before the DisplayState changes). Since the buffer returned by sdl could be in bgr format we need to put back in the handlers of that case. This approach is good if the two following conditions are true: 1) the sdl surface is a software surface that resides in main memory; 2) the host display color depth is either 16 or 32 bpp. If first condition is false we can have bad performances using sdl and vnc together. If the second condition is false performances are certainly not going to improve but they shouldn't get worse either. The first condition is always true, at least on linux/X11 systems; but I believe is true also on other platforms. The second condition is true in the vast majority of the cases. This patch should also have the good side effect of solving the sdl 2D slowness malc was reporting on MacOS, because SDL_BlitSurface is not going to be called anymore when the guest is in text mode or 24bpp. However the root problem is still present so I suspect we may still see some slowness on MacOS when the guest is in 32 or 16 bpp. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6839 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 16:02:13 +01:00
qemu_free_displaysurface(ds);
g_free(ds);
return NULL;
}
s->hw_update = update;
s->hw_invalidate = invalidate;
s->hw_screen_dump = screen_dump;
s->hw_text_update = text_update;
s->hw = opaque;
register_displaystate(ds);
return ds;
}
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;
}
void console_color_init(DisplayState *ds)
{
int i, j;
for (j = 0; j < 2; j++) {
for (i = 0; i < 8; i++) {
color_table[j][i] = col_expand(ds,
vga_get_color(ds, color_table_rgb[j][i]));
}
}
}
static void text_console_set_echo(CharDriverState *chr, bool echo)
{
TextConsole *s = chr->opaque;
s->echo = echo;
}
static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
{
TextConsole *s;
static int color_inited;
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;
if (!color_inited) {
color_inited = 1;
console_color_init(s->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 = ds_get_width(s->ds);
s->g_height = ds_get_height(s->ds);
}
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_generic_open(chr);
if (chr->init)
chr->init(chr);
}
Revert "qemu-char: Print strerror message on failure" and deps The commit's purpose is laudable: The only way for chardev drivers to communicate an error was to return a NULL pointer, which resulted in an error message that said _that_ something went wrong, but not _why_. It attempts to achieve it by changing the interface to return 0/-errno and update qemu_chr_open_opts() to use strerror() to display a more helpful error message. Unfortunately, it has serious flaws: 1. Backends "socket" and "udp" return bogus error codes, because qemu_chr_open_socket() and qemu_chr_open_udp() assume that unix_listen_opts(), unix_connect_opts(), inet_listen_opts(), inet_connect_opts() and inet_dgram_opts() fail with errno set appropriately. That assumption is wrong, and the commit turns unspecific error messages into misleading error messages. For instance: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx inet_connect: host and/or port not specified chardev: opening backend "socket" failed: No such file or directory ENOENT is what happens to be in my errno when the backend returns -errno. Let's put ERANGE there just for giggles: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx -drive if=none,iops=99999999999999999999 inet_connect: host and/or port not specified chardev: opening backend "socket" failed: Numerical result out of range Worse: when errno happens to be zero, return -errno erroneously signals success, and qemu_chr_new_from_opts() dies dereferencing uninitialized chr. I observe this with "-serial unix:". 2. All qemu_chr_open_opts() knows about the error is an errno error code. That's simply not enough for a decent message. For instance, when inet_dgram() can't resolve the parameter host, which errno code should it use? What if it can't resolve parameter localaddr? Clue: many backends already report errors in their open methods. Let's revert the flawed commit along with its dependencies, and fix up the silent error paths instead. This reverts commit 6e1db57b2ac9025c2443c665a0d9e78748637b26. Conflicts: console.c hw/baum.c qemu-char.c This reverts commit aad04cd024f0c59f0b96f032cde2e24eb3abba6d. The parts of commit db418a0a "Add stdio char device on windows" that depend on the reverted change fixed up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-07 15:09:08 +01:00
CharDriverState *text_console_init(QemuOpts *opts)
{
CharDriverState *chr;
TextConsole *s;
unsigned width;
unsigned height;
chr = g_malloc0(sizeof(CharDriverState));
width = qemu_opt_get_number(opts, "width", 0);
if (width == 0)
width = qemu_opt_get_number(opts, "cols", 0) * FONT_WIDTH;
height = qemu_opt_get_number(opts, "height", 0);
if (height == 0)
height = qemu_opt_get_number(opts, "rows", 0) * 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);
Revert "qemu-char: Print strerror message on failure" and deps The commit's purpose is laudable: The only way for chardev drivers to communicate an error was to return a NULL pointer, which resulted in an error message that said _that_ something went wrong, but not _why_. It attempts to achieve it by changing the interface to return 0/-errno and update qemu_chr_open_opts() to use strerror() to display a more helpful error message. Unfortunately, it has serious flaws: 1. Backends "socket" and "udp" return bogus error codes, because qemu_chr_open_socket() and qemu_chr_open_udp() assume that unix_listen_opts(), unix_connect_opts(), inet_listen_opts(), inet_connect_opts() and inet_dgram_opts() fail with errno set appropriately. That assumption is wrong, and the commit turns unspecific error messages into misleading error messages. For instance: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx inet_connect: host and/or port not specified chardev: opening backend "socket" failed: No such file or directory ENOENT is what happens to be in my errno when the backend returns -errno. Let's put ERANGE there just for giggles: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx -drive if=none,iops=99999999999999999999 inet_connect: host and/or port not specified chardev: opening backend "socket" failed: Numerical result out of range Worse: when errno happens to be zero, return -errno erroneously signals success, and qemu_chr_new_from_opts() dies dereferencing uninitialized chr. I observe this with "-serial unix:". 2. All qemu_chr_open_opts() knows about the error is an errno error code. That's simply not enough for a decent message. For instance, when inet_dgram() can't resolve the parameter host, which errno code should it use? What if it can't resolve parameter localaddr? Clue: many backends already report errors in their open methods. Let's revert the flawed commit along with its dependencies, and fix up the silent error paths instead. This reverts commit 6e1db57b2ac9025c2443c665a0d9e78748637b26. Conflicts: console.c hw/baum.c qemu-char.c This reverts commit aad04cd024f0c59f0b96f032cde2e24eb3abba6d. The parts of commit db418a0a "Add stdio char device on windows" that depend on the reverted change fixed up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-07 15:09:08 +01:00
return NULL;
}
s->chr = chr;
s->g_width = width;
s->g_height = height;
chr->opaque = s;
chr->chr_set_echo = text_console_set_echo;
Revert "qemu-char: Print strerror message on failure" and deps The commit's purpose is laudable: The only way for chardev drivers to communicate an error was to return a NULL pointer, which resulted in an error message that said _that_ something went wrong, but not _why_. It attempts to achieve it by changing the interface to return 0/-errno and update qemu_chr_open_opts() to use strerror() to display a more helpful error message. Unfortunately, it has serious flaws: 1. Backends "socket" and "udp" return bogus error codes, because qemu_chr_open_socket() and qemu_chr_open_udp() assume that unix_listen_opts(), unix_connect_opts(), inet_listen_opts(), inet_connect_opts() and inet_dgram_opts() fail with errno set appropriately. That assumption is wrong, and the commit turns unspecific error messages into misleading error messages. For instance: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx inet_connect: host and/or port not specified chardev: opening backend "socket" failed: No such file or directory ENOENT is what happens to be in my errno when the backend returns -errno. Let's put ERANGE there just for giggles: $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx -drive if=none,iops=99999999999999999999 inet_connect: host and/or port not specified chardev: opening backend "socket" failed: Numerical result out of range Worse: when errno happens to be zero, return -errno erroneously signals success, and qemu_chr_new_from_opts() dies dereferencing uninitialized chr. I observe this with "-serial unix:". 2. All qemu_chr_open_opts() knows about the error is an errno error code. That's simply not enough for a decent message. For instance, when inet_dgram() can't resolve the parameter host, which errno code should it use? What if it can't resolve parameter localaddr? Clue: many backends already report errors in their open methods. Let's revert the flawed commit along with its dependencies, and fix up the silent error paths instead. This reverts commit 6e1db57b2ac9025c2443c665a0d9e78748637b26. Conflicts: console.c hw/baum.c qemu-char.c This reverts commit aad04cd024f0c59f0b96f032cde2e24eb3abba6d. The parts of commit db418a0a "Add stdio char device on windows" that depend on the reverted change fixed up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-07 15:09:08 +01:00
return chr;
}
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(DisplayState *ds, int width, int height)
{
TextConsole *s = get_graphic_console(ds);
if (!s) return;
s->g_width = width;
s->g_height = height;
if (is_graphic_console()) {
DisplayAllocator interface (Stefano Stabellini) Hi all, this patch adds a DisplayAllocator interface that allows display frontends (sdl in particular) to provide a preallocated display buffer for the graphical backend to use. Whenever a graphical backend cannot use qemu_create_displaysurface_from because its own internal pixel format cannot be exported directly (text mode or graphical mode with color depth 8 or 24), it creates another display buffer in memory using qemu_create_displaysurface and does the conversion. This new buffer needs to be blitted into the sdl surface buffer every time we need to update portions of the screen. We can avoid this using the DisplayAllocator interace: sdl provides its own implementation of qemu_create_displaysurface, giving back the sdl surface buffer directly (as we used to do before the DisplayState changes). Since the buffer returned by sdl could be in bgr format we need to put back in the handlers of that case. This approach is good if the two following conditions are true: 1) the sdl surface is a software surface that resides in main memory; 2) the host display color depth is either 16 or 32 bpp. If first condition is false we can have bad performances using sdl and vnc together. If the second condition is false performances are certainly not going to improve but they shouldn't get worse either. The first condition is always true, at least on linux/X11 systems; but I believe is true also on other platforms. The second condition is true in the vast majority of the cases. This patch should also have the good side effect of solving the sdl 2D slowness malc was reporting on MacOS, because SDL_BlitSurface is not going to be called anymore when the guest is in text mode or 24bpp. However the root problem is still present so I suspect we may still see some slowness on MacOS when the guest is in 32 or 16 bpp. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6839 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 16:02:13 +01:00
ds->surface = qemu_resize_displaysurface(ds, width, height);
dpy_resize(ds);
}
}
void qemu_console_copy(DisplayState *ds, int src_x, int src_y,
int dst_x, int dst_y, int w, int h)
{
if (is_graphic_console()) {
dpy_copy(ds, src_x, src_y, dst_x, dst_y, w, h);
}
}
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
PixelFormat qemu_different_endianness_pixelformat(int bpp)
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
{
PixelFormat pf;
memset(&pf, 0x00, sizeof(PixelFormat));
pf.bits_per_pixel = bpp;
pf.bytes_per_pixel = 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;
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
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 = bpp / 8;
pf.depth = bpp == 32 ? 24 : bpp;
switch (bpp) {
case 15:
pf.bits_per_pixel = 16;
pf.bytes_per_pixel = 2;
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;
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
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;
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
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;
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
case 32:
pf.rmask = 0x00FF0000;
pf.gmask = 0x0000FF00;
pf.bmask = 0x000000FF;
pf.amax = 255;
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
pf.rmax = 255;
pf.gmax = 255;
pf.bmax = 255;
pf.ashift = 24;
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
pf.rshift = 16;
pf.gshift = 8;
pf.bshift = 0;
pf.rbits = 8;
pf.gbits = 8;
pf.bbits = 8;
pf.abits = 8;
DisplayState interface change (Stefano Stabellini) This patch changes the DisplayState interface adding support for multiple frontends at the same time (sdl and vnc) and implements most of the benefit of the shared_buf patch without the added complexity. Currently DisplayState is managed by sdl (or vnc) and sdl (or vnc) is also responsible for allocating the data and setting the depth. Vga.c (or another backend) will do any necessary conversion. The idea is to change it so that is vga.c (or another backend) together with console.c that fully manage the DisplayState interface allocating data and setting the depth (either 16 or 32 bit, if the guest uses a different resolution or is in text mode, vga.c (or another backend) is in charge of doing the conversion seamlessly). The other idea is that DisplayState supports *multiple* frontends like sdl and vnc; each of them can register some callbacks to be called when a display event occurs. The interesting changes are: - the new structures and related functions in console.h and console.c in particular the following functions are very helpful to manage a DisplaySurface: qemu_create_displaysurface qemu_resize_displaysurface qemu_create_displaysurface_from qemu_free_displaysurface - console_select and qemu_console_resize in console.c this two functions manage multiple consoles on a single host display - moving code around in hw/vga.c as for the shared_buf patch this is necessary to be able to handle a dynamic DisplaySurface bpp - changes to vga_draw_graphic in hw/vga.c this is the place where the DisplaySurface buffer is shared with the videoram, when possible; Compared to the last version the only changes are: - do not remove support to dpy_copy in cirrus_vga - change the name of the displaysurface handling functions Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6336 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 23:14:11 +01:00
break;
default:
break;
}
return pf;
}