qemu-e2k/ui/console.c

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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/osdep.h"
#include "ui/console.h"
#include "hw/qdev-core.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-ui.h"
#include "qemu/fifo8.h"
#include "qemu/main-loop.h"
#include "qemu/module.h"
#include "qemu/option.h"
#include "qemu/timer.h"
#include "chardev/char.h"
#include "trace.h"
#include "exec/memory.h"
#include "io/channel-file.h"
#include "qom/object.h"
#ifdef CONFIG_PNG
#include <png.h>
#endif
#define DEFAULT_BACKSCROLL 512
#define CONSOLE_CURSOR_PERIOD 500
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 enum {
GRAPHIC_CONSOLE,
TEXT_CONSOLE,
TEXT_CONSOLE_FIXED_SIZE
} console_type_t;
struct QemuConsole {
Object parent;
int index;
console_type_t console_type;
DisplayState *ds;
DisplaySurface *surface;
DisplayScanout scanout;
int dcls;
DisplayGLCtx *gl;
int gl_block;
QEMUTimer *gl_unblock_timer;
int window_id;
/* Graphic console state. */
Object *device;
uint32_t head;
QemuUIInfo ui_info;
QEMUTimer *ui_timer;
const GraphicHwOps *hw_ops;
void *hw;
/* 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;
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;
Chardev *chr;
/* fifo for key pressed */
Fifo8 out_fifo;
CoQueue dump_queue;
QTAILQ_ENTRY(QemuConsole) next;
};
struct DisplayState {
QEMUTimer *gui_timer;
uint64_t last_update;
uint64_t update_interval;
bool refreshing;
bool have_gfx;
bool have_text;
QLIST_HEAD(, DisplayChangeListener) listeners;
};
static DisplayState *display_state;
static QemuConsole *active_console;
static QTAILQ_HEAD(, QemuConsole) consoles =
QTAILQ_HEAD_INITIALIZER(consoles);
static bool cursor_visible_phase;
static QEMUTimer *cursor_timer;
static void text_console_do_init(Chardev *chr, DisplayState *ds);
static void dpy_refresh(DisplayState *s);
static DisplayState *get_alloc_displaystate(void);
static void text_console_update_cursor_timer(void);
static void text_console_update_cursor(void *opaque);
static bool displaychangelistener_has_dmabuf(DisplayChangeListener *dcl);
static bool console_compatible_with(QemuConsole *con,
DisplayChangeListener *dcl, Error **errp);
static void gui_update(void *opaque)
{
uint64_t interval = GUI_REFRESH_INTERVAL_IDLE;
uint64_t dcl_interval;
DisplayState *ds = opaque;
DisplayChangeListener *dcl;
QemuConsole *con;
ds->refreshing = true;
dpy_refresh(ds);
ds->refreshing = false;
QLIST_FOREACH(dcl, &ds->listeners, next) {
dcl_interval = dcl->update_interval ?
dcl->update_interval : GUI_REFRESH_INTERVAL_DEFAULT;
if (interval > dcl_interval) {
interval = dcl_interval;
}
}
if (ds->update_interval != interval) {
ds->update_interval = interval;
QTAILQ_FOREACH(con, &consoles, next) {
if (con->hw_ops->update_interval) {
con->hw_ops->update_interval(con->hw, interval);
}
}
trace_console_refresh(interval);
}
ds->last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
timer_mod(ds->gui_timer, ds->last_update + interval);
}
static void gui_setup_refresh(DisplayState *ds)
{
DisplayChangeListener *dcl;
bool need_timer = false;
bool have_gfx = false;
bool have_text = false;
QLIST_FOREACH(dcl, &ds->listeners, next) {
if (dcl->ops->dpy_refresh != NULL) {
need_timer = true;
}
if (dcl->ops->dpy_gfx_update != NULL) {
have_gfx = true;
}
if (dcl->ops->dpy_text_update != NULL) {
have_text = true;
}
}
if (need_timer && ds->gui_timer == NULL) {
ds->gui_timer = timer_new_ms(QEMU_CLOCK_REALTIME, gui_update, ds);
timer_mod(ds->gui_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME));
}
if (!need_timer && ds->gui_timer != NULL) {
timer_free(ds->gui_timer);
ds->gui_timer = NULL;
}
ds->have_gfx = have_gfx;
ds->have_text = have_text;
}
void graphic_hw_update_done(QemuConsole *con)
{
if (con) {
qemu_co_queue_restart_all(&con->dump_queue);
}
}
void graphic_hw_update(QemuConsole *con)
{
bool async = false;
con = con ? con : active_console;
if (!con) {
return;
}
if (con->hw_ops->gfx_update) {
con->hw_ops->gfx_update(con->hw);
async = con->hw_ops->gfx_update_async;
}
if (!async) {
graphic_hw_update_done(con);
}
}
static void graphic_hw_gl_unblock_timer(void *opaque)
{
warn_report("console: no gl-unblock within one second");
}
void graphic_hw_gl_block(QemuConsole *con, bool block)
{
uint64_t timeout;
assert(con != NULL);
if (block) {
con->gl_block++;
} else {
con->gl_block--;
}
assert(con->gl_block >= 0);
if (!con->hw_ops->gl_block) {
return;
}
if ((block && con->gl_block != 1) || (!block && con->gl_block != 0)) {
return;
}
con->hw_ops->gl_block(con->hw, block);
if (block) {
timeout = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
timeout += 1000; /* one sec */
timer_mod(con->gl_unblock_timer, timeout);
} else {
timer_del(con->gl_unblock_timer);
}
}
int qemu_console_get_window_id(QemuConsole *con)
{
return con->window_id;
}
void qemu_console_set_window_id(QemuConsole *con, int window_id)
{
con->window_id = window_id;
}
void graphic_hw_invalidate(QemuConsole *con)
{
if (!con) {
con = active_console;
}
if (con && con->hw_ops->invalidate) {
con->hw_ops->invalidate(con->hw);
}
}
#ifdef CONFIG_PNG
/**
* png_save: Take a screenshot as PNG
*
* Saves screendump as a PNG file
*
* Returns true for success or false for error.
*
* @fd: File descriptor for PNG file.
* @image: Image data in pixman format.
* @errp: Pointer to an error.
*/
static bool png_save(int fd, pixman_image_t *image, Error **errp)
{
int width = pixman_image_get_width(image);
int height = pixman_image_get_height(image);
g_autofree png_struct *png_ptr = NULL;
g_autofree png_info *info_ptr = NULL;
g_autoptr(pixman_image_t) linebuf =
qemu_pixman_linebuf_create(PIXMAN_a8r8g8b8, width);
uint8_t *buf = (uint8_t *)pixman_image_get_data(linebuf);
FILE *f = fdopen(fd, "wb");
int y;
if (!f) {
error_setg_errno(errp, errno,
"Failed to create file from file descriptor");
return false;
}
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL,
NULL, NULL);
if (!png_ptr) {
error_setg(errp, "PNG creation failed. Unable to write struct");
fclose(f);
return false;
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr) {
error_setg(errp, "PNG creation failed. Unable to write info");
fclose(f);
png_destroy_write_struct(&png_ptr, &info_ptr);
return false;
}
png_init_io(png_ptr, f);
png_set_IHDR(png_ptr, info_ptr, width, height, 8,
PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_write_info(png_ptr, info_ptr);
for (y = 0; y < height; ++y) {
qemu_pixman_linebuf_fill(linebuf, image, width, 0, y);
png_write_row(png_ptr, buf);
}
qemu_pixman_image_unref(linebuf);
png_write_end(png_ptr, NULL);
png_destroy_write_struct(&png_ptr, &info_ptr);
if (fclose(f) != 0) {
error_setg_errno(errp, errno,
"PNG creation failed. Unable to close file");
return false;
}
return true;
}
#else /* no png support */
static bool png_save(int fd, pixman_image_t *image, Error **errp)
{
error_setg(errp, "Enable PNG support with libpng for screendump");
return false;
}
#endif /* CONFIG_PNG */
static bool ppm_save(int fd, pixman_image_t *image, Error **errp)
{
int width = pixman_image_get_width(image);
int height = pixman_image_get_height(image);
g_autoptr(Object) ioc = OBJECT(qio_channel_file_new_fd(fd));
g_autofree char *header = NULL;
g_autoptr(pixman_image_t) linebuf = NULL;
int y;
trace_ppm_save(fd, image);
header = g_strdup_printf("P6\n%d %d\n%d\n", width, height, 255);
if (qio_channel_write_all(QIO_CHANNEL(ioc),
header, strlen(header), errp) < 0) {
return false;
}
linebuf = qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width);
for (y = 0; y < height; y++) {
qemu_pixman_linebuf_fill(linebuf, image, width, 0, y);
if (qio_channel_write_all(QIO_CHANNEL(ioc),
(char *)pixman_image_get_data(linebuf),
pixman_image_get_stride(linebuf), errp) < 0) {
return false;
}
}
return true;
}
static void graphic_hw_update_bh(void *con)
{
graphic_hw_update(con);
}
/* Safety: coroutine-only, concurrent-coroutine safe, main thread only */
void coroutine_fn
qmp_screendump(const char *filename, bool has_device, const char *device,
bool has_head, int64_t head,
bool has_format, ImageFormat format, Error **errp)
{
g_autoptr(pixman_image_t) image = NULL;
QemuConsole *con;
DisplaySurface *surface;
int fd;
if (has_device) {
con = qemu_console_lookup_by_device_name(device, has_head ? head : 0,
errp);
if (!con) {
return;
}
} else {
if (has_head) {
error_setg(errp, "'head' must be specified together with 'device'");
return;
}
con = qemu_console_lookup_by_index(0);
if (!con) {
error_setg(errp, "There is no console to take a screendump from");
return;
}
}
if (qemu_co_queue_empty(&con->dump_queue)) {
/* Defer the update, it will restart the pending coroutines */
aio_bh_schedule_oneshot(qemu_get_aio_context(),
graphic_hw_update_bh, con);
}
qemu_co_queue_wait(&con->dump_queue, NULL);
/*
* All pending coroutines are woken up, while the BQL is held. No
* further graphic update are possible until it is released. Take
* an image ref before that.
*/
surface = qemu_console_surface(con);
if (!surface) {
error_setg(errp, "no surface");
return;
}
image = pixman_image_ref(surface->image);
fd = qemu_open_old(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
if (fd == -1) {
error_setg(errp, "failed to open file '%s': %s", filename,
strerror(errno));
return;
}
/*
* The image content could potentially be updated as the coroutine
* yields and releases the BQL. It could produce corrupted dump, but
* it should be otherwise safe.
*/
if (has_format && format == IMAGE_FORMAT_PNG) {
/* PNG format specified for screendump */
if (!png_save(fd, image, errp)) {
qemu_unlink(filename);
}
} else {
/* PPM format specified/default for screendump */
if (!ppm_save(fd, image, errp)) {
qemu_unlink(filename);
}
}
}
void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata)
{
if (!con) {
con = active_console;
}
if (con && con->hw_ops->text_update) {
con->hw_ops->text_update(con->hw, chardata);
}
}
static void vga_fill_rect(QemuConsole *con,
int posx, int posy, int width, int height,
pixman_color_t color)
{
DisplaySurface *surface = qemu_console_surface(con);
pixman_rectangle16_t rect = {
.x = posx, .y = posy, .width = width, .height = height
};
pixman_image_fill_rectangles(PIXMAN_OP_SRC, surface->image,
&color, 1, &rect);
}
/* 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);
pixman_image_composite(PIXMAN_OP_SRC,
surface->image, NULL, surface->image,
xs, ys, 0, 0, xd, yd, w, h);
}
/***********************************************************/
/* basic char display */
#define FONT_HEIGHT 16
#define FONT_WIDTH 8
#include "vgafont.h"
#define QEMU_RGB(r, g, b) \
{ .red = r << 8, .green = g << 8, .blue = b << 8, .alpha = 0xffff }
static const pixman_color_t color_table_rgb[2][8] = {
{ /* dark */
[QEMU_COLOR_BLACK] = QEMU_RGB(0x00, 0x00, 0x00), /* black */
[QEMU_COLOR_BLUE] = QEMU_RGB(0x00, 0x00, 0xaa), /* blue */
[QEMU_COLOR_GREEN] = QEMU_RGB(0x00, 0xaa, 0x00), /* green */
[QEMU_COLOR_CYAN] = QEMU_RGB(0x00, 0xaa, 0xaa), /* cyan */
[QEMU_COLOR_RED] = QEMU_RGB(0xaa, 0x00, 0x00), /* red */
[QEMU_COLOR_MAGENTA] = QEMU_RGB(0xaa, 0x00, 0xaa), /* magenta */
[QEMU_COLOR_YELLOW] = QEMU_RGB(0xaa, 0xaa, 0x00), /* yellow */
[QEMU_COLOR_WHITE] = QEMU_RGB(0xaa, 0xaa, 0xaa), /* white */
},
{ /* bright */
[QEMU_COLOR_BLACK] = QEMU_RGB(0x00, 0x00, 0x00), /* black */
[QEMU_COLOR_BLUE] = QEMU_RGB(0x00, 0x00, 0xff), /* blue */
[QEMU_COLOR_GREEN] = QEMU_RGB(0x00, 0xff, 0x00), /* green */
[QEMU_COLOR_CYAN] = QEMU_RGB(0x00, 0xff, 0xff), /* cyan */
[QEMU_COLOR_RED] = QEMU_RGB(0xff, 0x00, 0x00), /* red */
[QEMU_COLOR_MAGENTA] = QEMU_RGB(0xff, 0x00, 0xff), /* magenta */
[QEMU_COLOR_YELLOW] = QEMU_RGB(0xff, 0xff, 0x00), /* yellow */
[QEMU_COLOR_WHITE] = QEMU_RGB(0xff, 0xff, 0xff), /* white */
}
};
static void vga_putcharxy(QemuConsole *s, int x, int y, int ch,
TextAttributes *t_attrib)
{
static pixman_image_t *glyphs[256];
DisplaySurface *surface = qemu_console_surface(s);
pixman_color_t fgcol, bgcol;
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];
}
if (!glyphs[ch]) {
glyphs[ch] = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, ch);
}
qemu_pixman_glyph_render(glyphs[ch], surface->image,
&fgcol, &bgcol, x, y, FONT_WIDTH, FONT_HEIGHT);
}
static void text_console_resize(QemuConsole *s)
{
TextCell *cells, *c, *c1;
int w1, x, y, last_width;
assert(s->scanout.kind == SCANOUT_SURFACE);
last_width = s->width;
s->width = surface_width(s->surface) / FONT_WIDTH;
s->height = surface_height(s->surface) / FONT_HEIGHT;
w1 = last_width;
if (s->width < w1)
w1 = s->width;
cells = g_new(TextCell, s->width * s->total_height + 1);
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 (!qemu_console_is_visible(s)) {
return;
}
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->ds->have_text) {
text_update_xy(s, x, y);
}
y1 = (s->y_base + y) % s->total_height;
y2 = y1 - s->y_displayed;
if (y2 < 0) {
y2 += s->total_height;
}
if (y2 < s->height) {
if (x >= s->width) {
x = s->width - 1;
}
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->ds->have_text) {
s->cursor_invalidate = 1;
}
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 && 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->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;
}
vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
color_table_rgb[0][QEMU_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(QemuConsole *s, int ydelta)
{
int i, y1;
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->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;
}
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 = QEMU_COLOR_BLACK;
break;
case 31:
s->t_attrib.fgcol = QEMU_COLOR_RED;
break;
case 32:
s->t_attrib.fgcol = QEMU_COLOR_GREEN;
break;
case 33:
s->t_attrib.fgcol = QEMU_COLOR_YELLOW;
break;
case 34:
s->t_attrib.fgcol = QEMU_COLOR_BLUE;
break;
case 35:
s->t_attrib.fgcol = QEMU_COLOR_MAGENTA;
break;
case 36:
s->t_attrib.fgcol = QEMU_COLOR_CYAN;
break;
case 37:
s->t_attrib.fgcol = QEMU_COLOR_WHITE;
break;
/* set background color */
case 40:
s->t_attrib.bgcol = QEMU_COLOR_BLACK;
break;
case 41:
s->t_attrib.bgcol = QEMU_COLOR_RED;
break;
case 42:
s->t_attrib.bgcol = QEMU_COLOR_GREEN;
break;
case 43:
s->t_attrib.bgcol = QEMU_COLOR_YELLOW;
break;
case 44:
s->t_attrib.bgcol = QEMU_COLOR_BLUE;
break;
case 45:
s->t_attrib.bgcol = QEMU_COLOR_MAGENTA;
break;
case 46:
s->t_attrib.bgcol = QEMU_COLOR_CYAN;
break;
case 47:
s->t_attrib.bgcol = QEMU_COLOR_WHITE;
break;
}
}
}
static void console_clear_xy(QemuConsole *s, int x, int y)
{
int y1 = (s->y_base + y) % s->total_height;
if (x >= s->width) {
x = s->width - 1;
}
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_put_one(QemuConsole *s, int ch)
{
TextCell *c;
int y1;
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++;
}
static void console_respond_str(QemuConsole *s, const char *buf)
{
while (*buf) {
console_put_one(s, *buf);
buf++;
}
}
/* 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)
{
int i;
int x, y;
char response[40];
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:
console_put_one(s, ch);
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 == ';' || ch == '?') {
break;
}
trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
ch, s->nb_esc_params);
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 < s->width; 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':
switch (s->esc_params[0]) {
case 5:
/* report console status (always succeed)*/
console_respond_str(s, "\033[0n");
break;
case 6:
/* report cursor position */
sprintf(response, "\033[%d;%dR",
(s->y_base + s->y) % s->total_height + 1,
s->x + 1);
console_respond_str(s, response);
break;
}
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:
trace_console_putchar_unhandled(ch);
break;
}
break;
}
}
}
static void displaychangelistener_gfx_switch(DisplayChangeListener *dcl,
struct DisplaySurface *new_surface,
bool update)
{
if (dcl->ops->dpy_gfx_switch) {
dcl->ops->dpy_gfx_switch(dcl, new_surface);
}
if (update && dcl->ops->dpy_gfx_update) {
dcl->ops->dpy_gfx_update(dcl, 0, 0,
surface_width(new_surface),
surface_height(new_surface));
}
}
static void dpy_gfx_create_texture(QemuConsole *con, DisplaySurface *surface)
{
if (con->gl && con->gl->ops->dpy_gl_ctx_create_texture) {
con->gl->ops->dpy_gl_ctx_create_texture(con->gl, surface);
}
}
static void dpy_gfx_destroy_texture(QemuConsole *con, DisplaySurface *surface)
{
if (con->gl && con->gl->ops->dpy_gl_ctx_destroy_texture) {
con->gl->ops->dpy_gl_ctx_destroy_texture(con->gl, surface);
}
}
static void dpy_gfx_update_texture(QemuConsole *con, DisplaySurface *surface,
int x, int y, int w, int h)
{
if (con->gl && con->gl->ops->dpy_gl_ctx_update_texture) {
con->gl->ops->dpy_gl_ctx_update_texture(con->gl, surface, x, y, w, h);
}
}
static void displaychangelistener_display_console(DisplayChangeListener *dcl,
QemuConsole *con,
Error **errp)
{
static const char nodev[] =
"This VM has no graphic display device.";
static DisplaySurface *dummy;
if (!con || !console_compatible_with(con, dcl, errp)) {
if (!dummy) {
dummy = qemu_create_placeholder_surface(640, 480, nodev);
}
if (con) {
dpy_gfx_create_texture(con, dummy);
}
displaychangelistener_gfx_switch(dcl, dummy, TRUE);
return;
}
dpy_gfx_create_texture(con, con->surface);
displaychangelistener_gfx_switch(dcl, con->surface,
con->scanout.kind == SCANOUT_SURFACE);
if (con->scanout.kind == SCANOUT_DMABUF &&
displaychangelistener_has_dmabuf(dcl)) {
dcl->ops->dpy_gl_scanout_dmabuf(dcl, con->scanout.dmabuf);
} else if (con->scanout.kind == SCANOUT_TEXTURE &&
dcl->ops->dpy_gl_scanout_texture) {
dcl->ops->dpy_gl_scanout_texture(dcl,
con->scanout.texture.backing_id,
con->scanout.texture.backing_y_0_top,
con->scanout.texture.backing_width,
con->scanout.texture.backing_height,
con->scanout.texture.x,
con->scanout.texture.y,
con->scanout.texture.width,
con->scanout.texture.height);
}
}
void console_select(unsigned int index)
{
DisplayChangeListener *dcl;
QemuConsole *s;
trace_console_select(index);
s = qemu_console_lookup_by_index(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->have_gfx) {
QLIST_FOREACH(dcl, &ds->listeners, next) {
if (dcl->con != NULL) {
continue;
}
displaychangelistener_display_console(dcl, s, NULL);
}
}
if (ds->have_text) {
dpy_text_resize(s, s->width, s->height);
}
text_console_update_cursor(NULL);
}
}
struct VCChardev {
Chardev parent;
QemuConsole *console;
};
typedef struct VCChardev VCChardev;
#define TYPE_CHARDEV_VC "chardev-vc"
DECLARE_INSTANCE_CHECKER(VCChardev, VC_CHARDEV,
TYPE_CHARDEV_VC)
static int vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
{
VCChardev *drv = VC_CHARDEV(chr);
QemuConsole *s = drv->console;
int i;
if (!s->ds) {
return 0;
}
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(QemuConsole *s)
{
uint32_t len, avail;
len = qemu_chr_be_can_write(s->chr);
avail = fifo8_num_used(&s->out_fifo);
while (len > 0 && avail > 0) {
const uint8_t *buf;
uint32_t size;
buf = fifo8_pop_buf(&s->out_fifo, MIN(len, avail), &size);
qemu_chr_be_write(s->chr, (uint8_t *)buf, size);
len = qemu_chr_be_can_write(s->chr);
avail -= size;
}
}
/* called when an ascii key is pressed */
void kbd_put_keysym_console(QemuConsole *s, int keysym)
{
uint8_t buf[16], *q;
int c;
uint32_t num_free;
if (!s || (s->console_type == GRAPHIC_CONSOLE))
return;
switch(keysym) {
case QEMU_KEY_CTRL_UP:
console_scroll(s, -1);
break;
case QEMU_KEY_CTRL_DOWN:
console_scroll(s, 1);
break;
case QEMU_KEY_CTRL_PAGEUP:
console_scroll(s, -10);
break;
case QEMU_KEY_CTRL_PAGEDOWN:
console_scroll(s, 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')) {
vc_chr_write(s->chr, (const uint8_t *) "\r", 1);
*q++ = '\n';
} else {
*q++ = keysym;
}
if (s->echo) {
vc_chr_write(s->chr, buf, q - buf);
}
num_free = fifo8_num_free(&s->out_fifo);
fifo8_push_all(&s->out_fifo, buf, MIN(num_free, q - buf));
kbd_send_chars(s);
break;
}
}
static const int qcode_to_keysym[Q_KEY_CODE__MAX] = {
[Q_KEY_CODE_UP] = QEMU_KEY_UP,
[Q_KEY_CODE_DOWN] = QEMU_KEY_DOWN,
[Q_KEY_CODE_RIGHT] = QEMU_KEY_RIGHT,
[Q_KEY_CODE_LEFT] = QEMU_KEY_LEFT,
[Q_KEY_CODE_HOME] = QEMU_KEY_HOME,
[Q_KEY_CODE_END] = QEMU_KEY_END,
[Q_KEY_CODE_PGUP] = QEMU_KEY_PAGEUP,
[Q_KEY_CODE_PGDN] = QEMU_KEY_PAGEDOWN,
[Q_KEY_CODE_DELETE] = QEMU_KEY_DELETE,
[Q_KEY_CODE_BACKSPACE] = QEMU_KEY_BACKSPACE,
};
static const int ctrl_qcode_to_keysym[Q_KEY_CODE__MAX] = {
[Q_KEY_CODE_UP] = QEMU_KEY_CTRL_UP,
[Q_KEY_CODE_DOWN] = QEMU_KEY_CTRL_DOWN,
[Q_KEY_CODE_RIGHT] = QEMU_KEY_CTRL_RIGHT,
[Q_KEY_CODE_LEFT] = QEMU_KEY_CTRL_LEFT,
[Q_KEY_CODE_HOME] = QEMU_KEY_CTRL_HOME,
[Q_KEY_CODE_END] = QEMU_KEY_CTRL_END,
[Q_KEY_CODE_PGUP] = QEMU_KEY_CTRL_PAGEUP,
[Q_KEY_CODE_PGDN] = QEMU_KEY_CTRL_PAGEDOWN,
};
bool kbd_put_qcode_console(QemuConsole *s, int qcode, bool ctrl)
{
int keysym;
keysym = ctrl ? ctrl_qcode_to_keysym[qcode] : qcode_to_keysym[qcode];
if (keysym == 0) {
return false;
}
kbd_put_keysym_console(s, keysym);
return true;
}
void kbd_put_string_console(QemuConsole *s, const char *str, int len)
{
int i;
for (i = 0; i < len && str[i]; i++) {
kbd_put_keysym_console(s, str[i]);
}
}
void kbd_put_keysym(int keysym)
{
kbd_put_keysym_console(active_console, keysym);
}
static void text_console_invalidate(void *opaque)
{
QemuConsole *s = (QemuConsole *) opaque;
if (s->ds->have_text && s->console_type == TEXT_CONSOLE) {
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 ++,
ATTR2CHTYPE(s->cells[src].ch,
s->cells[src].t_attrib.fgcol,
s->cells[src].t_attrib.bgcol,
s->cells[src].t_attrib.bold));
}
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,
uint32_t head)
{
Object *obj;
QemuConsole *s;
int i;
obj = object_new(TYPE_QEMU_CONSOLE);
s = QEMU_CONSOLE(obj);
qemu_co_queue_init(&s->dump_queue);
s->head = head;
object_property_add_link(obj, "device", TYPE_DEVICE,
qom: Make QOM link property unref optional Some object_property_add_link() callers expect property deletion to unref the link property object. Other callers expect to manage the refcount themselves. The former are currently broken and therefore leak the link property object. This patch adds a flags argument to object_property_add_link() so the caller can specify which refcount behavior they require. The new OBJ_PROP_LINK_UNREF_ON_RELEASE flag causes the link pointer to be unreferenced when the property is deleted. This fixes refcount leaks in qdev.c, xilinx_axidma.c, xilinx_axienet.c, s390-virtio-bus.c, virtio-pci.c, virtio-rng.c, and ui/console.c. Rationale for refcount behavior: * hw/core/qdev.c - bus children are explicitly unreferenced, don't interfere - parent_bus is essentially a read-only property that doesn't hold a refcount, don't unref - hotplug_handler is leaked, do unref * hw/dma/xilinx_axidma.c - rx stream "dma" links are set using set_link, therefore they need unref - tx streams are set using set_link, therefore they need unref * hw/net/xilinx_axienet.c - same reasoning as hw/dma/xilinx_axidma.c * hw/pcmcia/pxa2xx.c - pxa2xx bypasses set_link and therefore does not use refcounts * hw/s390x/s390-virtio-bus.c * hw/virtio/virtio-pci.c * hw/virtio/virtio-rng.c * ui/console.c - set_link is used and there is no explicit unref, do unref Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com> Cc: Alexander Graf <agraf@suse.de> Cc: Anthony Liguori <aliguori@amazon.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 08:58:55 +01:00
(Object **)&s->device,
object_property_allow_set_link,
qom: Drop parameter @errp of object_property_add() & friends The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort. Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too. We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers. The previous few commits demonstrated once again that ignoring programming errors is a bad idea. Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way. When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea. Drop parameter @errp and assert the preconditions instead. There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
2020-05-05 17:29:22 +02:00
OBJ_PROP_LINK_STRONG);
object_property_add_uint32_ptr(obj, "head", &s->head,
qom: Drop parameter @errp of object_property_add() & friends The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort. Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too. We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers. The previous few commits demonstrated once again that ignoring programming errors is a bad idea. Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way. When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea. Drop parameter @errp and assert the preconditions instead. There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
2020-05-05 17:29:22 +02:00
OBJ_PROP_FLAG_READ);
if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
(console_type == GRAPHIC_CONSOLE))) {
active_console = s;
}
s->ds = ds;
s->console_type = console_type;
s->window_id = -1;
if (QTAILQ_EMPTY(&consoles)) {
s->index = 0;
QTAILQ_INSERT_TAIL(&consoles, s, next);
} else if (console_type != GRAPHIC_CONSOLE || phase_check(PHASE_MACHINE_READY)) {
QemuConsole *last = QTAILQ_LAST(&consoles);
s->index = last->index + 1;
QTAILQ_INSERT_TAIL(&consoles, s, next);
} else {
/*
* HACK: Put graphical consoles before text consoles.
*
* Only do that for coldplugged devices. After initial device
* initialization we will not renumber the consoles any more.
*/
QemuConsole *c = QTAILQ_FIRST(&consoles);
while (QTAILQ_NEXT(c, next) != NULL &&
c->console_type == GRAPHIC_CONSOLE) {
c = QTAILQ_NEXT(c, next);
}
if (c->console_type == GRAPHIC_CONSOLE) {
/* have no text consoles */
s->index = c->index + 1;
QTAILQ_INSERT_AFTER(&consoles, c, s, next);
} else {
s->index = c->index;
QTAILQ_INSERT_BEFORE(c, s, next);
/* renumber text consoles */
for (i = s->index + 1; c != NULL; c = QTAILQ_NEXT(c, next), i++) {
c->index = i;
}
}
}
return s;
}
DisplaySurface *qemu_create_displaysurface(int width, int height)
{
DisplaySurface *surface = g_new0(DisplaySurface, 1);
trace_displaysurface_create(surface, width, height);
surface->format = PIXMAN_x8r8g8b8;
surface->image = pixman_image_create_bits(surface->format,
width, height,
NULL, width * 4);
assert(surface->image != NULL);
surface->flags = QEMU_ALLOCATED_FLAG;
return surface;
}
DisplaySurface *qemu_create_displaysurface_from(int width, int height,
pixman_format_code_t format,
int linesize, uint8_t *data)
{
DisplaySurface *surface = g_new0(DisplaySurface, 1);
trace_displaysurface_create_from(surface, width, height, format);
surface->format = format;
surface->image = pixman_image_create_bits(surface->format,
width, height,
(void *)data, linesize);
assert(surface->image != NULL);
return surface;
}
DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
{
DisplaySurface *surface = g_new0(DisplaySurface, 1);
trace_displaysurface_create_pixman(surface);
surface->format = pixman_image_get_format(image);
surface->image = pixman_image_ref(image);
return surface;
}
DisplaySurface *qemu_create_placeholder_surface(int w, int h,
const char *msg)
{
DisplaySurface *surface = qemu_create_displaysurface(w, h);
pixman_color_t bg = color_table_rgb[0][QEMU_COLOR_BLACK];
pixman_color_t fg = color_table_rgb[0][QEMU_COLOR_WHITE];
pixman_image_t *glyph;
int len, x, y, i;
len = strlen(msg);
x = (w / FONT_WIDTH - len) / 2;
y = (h / FONT_HEIGHT - 1) / 2;
for (i = 0; i < len; i++) {
glyph = qemu_pixman_glyph_from_vgafont(FONT_HEIGHT, vgafont16, msg[i]);
qemu_pixman_glyph_render(glyph, surface->image, &fg, &bg,
x+i, y, FONT_WIDTH, FONT_HEIGHT);
qemu_pixman_image_unref(glyph);
}
surface->flags |= QEMU_PLACEHOLDER_FLAG;
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);
}
bool console_has_gl(QemuConsole *con)
{
return con->gl != NULL;
}
static bool displaychangelistener_has_dmabuf(DisplayChangeListener *dcl)
{
if (dcl->ops->dpy_has_dmabuf) {
return dcl->ops->dpy_has_dmabuf(dcl);
}
if (dcl->ops->dpy_gl_scanout_dmabuf) {
return true;
}
return false;
}
static bool console_compatible_with(QemuConsole *con,
DisplayChangeListener *dcl, Error **errp)
{
int flags;
flags = con->hw_ops->get_flags ? con->hw_ops->get_flags(con->hw) : 0;
if (console_has_gl(con) &&
!con->gl->ops->dpy_gl_ctx_is_compatible_dcl(con->gl, dcl)) {
error_setg(errp, "Display %s is incompatible with the GL context",
dcl->ops->dpy_name);
return false;
}
if (flags & GRAPHIC_FLAGS_GL &&
!console_has_gl(con)) {
error_setg(errp, "The console requires a GL context.");
return false;
}
if (flags & GRAPHIC_FLAGS_DMABUF &&
!displaychangelistener_has_dmabuf(dcl)) {
error_setg(errp, "The console requires display DMABUF support.");
return false;
}
return true;
}
void qemu_console_set_display_gl_ctx(QemuConsole *con, DisplayGLCtx *gl)
{
/* display has opengl support */
assert(con);
if (con->gl) {
error_report("The console already has an OpenGL context.");
exit(1);
}
con->gl = gl;
}
void register_displaychangelistener(DisplayChangeListener *dcl)
{
QemuConsole *con;
assert(!dcl->ds);
trace_displaychangelistener_register(dcl, dcl->ops->dpy_name);
dcl->ds = get_alloc_displaystate();
QLIST_INSERT_HEAD(&dcl->ds->listeners, dcl, next);
gui_setup_refresh(dcl->ds);
if (dcl->con) {
dcl->con->dcls++;
con = dcl->con;
} else {
con = active_console;
}
displaychangelistener_display_console(dcl, con, dcl->con ? &error_fatal : NULL);
text_console_update_cursor(NULL);
}
void update_displaychangelistener(DisplayChangeListener *dcl,
uint64_t interval)
{
DisplayState *ds = dcl->ds;
dcl->update_interval = interval;
if (!ds->refreshing && ds->update_interval > interval) {
timer_mod(ds->gui_timer, ds->last_update + interval);
}
}
void unregister_displaychangelistener(DisplayChangeListener *dcl)
{
DisplayState *ds = dcl->ds;
trace_displaychangelistener_unregister(dcl, dcl->ops->dpy_name);
if (dcl->con) {
dcl->con->dcls--;
}
QLIST_REMOVE(dcl, next);
dcl->ds = NULL;
gui_setup_refresh(ds);
}
static void dpy_set_ui_info_timer(void *opaque)
{
QemuConsole *con = opaque;
con->hw_ops->ui_info(con->hw, con->head, &con->ui_info);
}
bool dpy_ui_info_supported(QemuConsole *con)
{
if (con == NULL) {
con = active_console;
}
return con->hw_ops->ui_info != NULL;
}
const QemuUIInfo *dpy_get_ui_info(const QemuConsole *con)
{
if (con == NULL) {
con = active_console;
}
return &con->ui_info;
}
int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info, bool delay)
{
if (con == NULL) {
con = active_console;
}
if (!dpy_ui_info_supported(con)) {
return -1;
}
if (memcmp(&con->ui_info, info, sizeof(con->ui_info)) == 0) {
/* nothing changed -- ignore */
return 0;
}
/*
* Typically we get a flood of these as the user resizes the window.
* Wait until the dust has settled (one second without updates), then
* go notify the guest.
*/
con->ui_info = *info;
timer_mod(con->ui_timer,
qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + (delay ? 1000 : 0));
return 0;
}
void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
int width = qemu_console_get_width(con, x + w);
int height = qemu_console_get_height(con, y + h);
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);
if (!qemu_console_is_visible(con)) {
return;
}
dpy_gfx_update_texture(con, con->surface, x, y, w, h);
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gfx_update) {
dcl->ops->dpy_gfx_update(dcl, x, y, w, h);
}
}
}
void dpy_gfx_update_full(QemuConsole *con)
{
int w = qemu_console_get_width(con, 0);
int h = qemu_console_get_height(con, 0);
dpy_gfx_update(con, 0, 0, w, h);
}
void dpy_gfx_replace_surface(QemuConsole *con,
DisplaySurface *surface)
{
static const char placeholder_msg[] = "Display output is not active.";
DisplayState *s = con->ds;
DisplaySurface *old_surface = con->surface;
DisplayChangeListener *dcl;
int width;
int height;
if (!surface) {
if (old_surface) {
width = surface_width(old_surface);
height = surface_height(old_surface);
} else {
width = 640;
height = 480;
}
surface = qemu_create_placeholder_surface(width, height, placeholder_msg);
}
assert(old_surface != surface);
con->scanout.kind = SCANOUT_SURFACE;
con->surface = surface;
dpy_gfx_create_texture(con, surface);
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
displaychangelistener_gfx_switch(dcl, surface, FALSE);
}
dpy_gfx_destroy_texture(con, old_surface);
qemu_free_displaysurface(old_surface);
}
bool dpy_gfx_check_format(QemuConsole *con,
pixman_format_code_t format)
{
DisplayChangeListener *dcl;
DisplayState *s = con->ds;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->con && dcl->con != con) {
/* dcl bound to another console -> skip */
continue;
}
if (dcl->ops->dpy_gfx_check_format) {
if (!dcl->ops->dpy_gfx_check_format(dcl, format)) {
return false;
}
} else {
/* default is to allow native 32 bpp only */
if (format != qemu_default_pixman_format(32, true)) {
return false;
}
}
}
return true;
}
static void dpy_refresh(DisplayState *s)
{
DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_refresh) {
dcl->ops->dpy_refresh(dcl);
}
}
}
void dpy_text_cursor(QemuConsole *con, int x, int y)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
if (!qemu_console_is_visible(con)) {
return;
}
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
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;
DisplayChangeListener *dcl;
if (!qemu_console_is_visible(con)) {
return;
}
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
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;
DisplayChangeListener *dcl;
if (!qemu_console_is_visible(con)) {
return;
}
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
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;
DisplayChangeListener *dcl;
if (!qemu_console_is_visible(con)) {
return;
}
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
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;
DisplayChangeListener *dcl;
if (!qemu_console_is_visible(con)) {
return;
}
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_cursor_define) {
dcl->ops->dpy_cursor_define(dcl, cursor);
}
}
}
bool dpy_cursor_define_supported(QemuConsole *con)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_cursor_define) {
return true;
}
}
return false;
}
QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
struct QEMUGLParams *qparams)
{
assert(con->gl);
return con->gl->ops->dpy_gl_ctx_create(con->gl, qparams);
}
void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx)
{
assert(con->gl);
con->gl->ops->dpy_gl_ctx_destroy(con->gl, ctx);
}
int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx)
{
assert(con->gl);
return con->gl->ops->dpy_gl_ctx_make_current(con->gl, ctx);
}
void dpy_gl_scanout_disable(QemuConsole *con)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
if (con->scanout.kind != SCANOUT_SURFACE) {
con->scanout.kind = SCANOUT_NONE;
}
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gl_scanout_disable) {
dcl->ops->dpy_gl_scanout_disable(dcl);
}
}
}
void dpy_gl_scanout_texture(QemuConsole *con,
uint32_t backing_id,
bool backing_y_0_top,
uint32_t backing_width,
uint32_t backing_height,
uint32_t x, uint32_t y,
uint32_t width, uint32_t height)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
con->scanout.kind = SCANOUT_TEXTURE;
con->scanout.texture = (ScanoutTexture) {
backing_id, backing_y_0_top, backing_width, backing_height,
x, y, width, height
};
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gl_scanout_texture) {
dcl->ops->dpy_gl_scanout_texture(dcl, backing_id,
backing_y_0_top,
backing_width, backing_height,
x, y, width, height);
}
}
}
void dpy_gl_scanout_dmabuf(QemuConsole *con,
QemuDmaBuf *dmabuf)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
con->scanout.kind = SCANOUT_DMABUF;
con->scanout.dmabuf = dmabuf;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gl_scanout_dmabuf) {
dcl->ops->dpy_gl_scanout_dmabuf(dcl, dmabuf);
}
}
}
void dpy_gl_cursor_dmabuf(QemuConsole *con, QemuDmaBuf *dmabuf,
bool have_hot, uint32_t hot_x, uint32_t hot_y)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gl_cursor_dmabuf) {
dcl->ops->dpy_gl_cursor_dmabuf(dcl, dmabuf,
have_hot, hot_x, hot_y);
}
}
}
void dpy_gl_cursor_position(QemuConsole *con,
uint32_t pos_x, uint32_t pos_y)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gl_cursor_position) {
dcl->ops->dpy_gl_cursor_position(dcl, pos_x, pos_y);
}
}
}
void dpy_gl_release_dmabuf(QemuConsole *con,
QemuDmaBuf *dmabuf)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gl_release_dmabuf) {
dcl->ops->dpy_gl_release_dmabuf(dcl, dmabuf);
}
}
}
void dpy_gl_update(QemuConsole *con,
uint32_t x, uint32_t y, uint32_t w, uint32_t h)
{
DisplayState *s = con->ds;
DisplayChangeListener *dcl;
assert(con->gl);
graphic_hw_gl_block(con, true);
QLIST_FOREACH(dcl, &s->listeners, next) {
if (con != (dcl->con ? dcl->con : active_console)) {
continue;
}
if (dcl->ops->dpy_gl_update) {
dcl->ops->dpy_gl_update(dcl, x, y, w, h);
}
}
graphic_hw_gl_block(con, false);
}
/***********************************************************/
/* register display */
/* console.c internal use only */
static DisplayState *get_alloc_displaystate(void)
{
if (!display_state) {
display_state = g_new0(DisplayState, 1);
cursor_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
text_console_update_cursor, NULL);
}
return display_state;
}
/*
* Called by main(), after creating QemuConsoles
* and before initializing ui (sdl/vnc/...).
*/
DisplayState *init_displaystate(void)
{
gchar *name;
QemuConsole *con;
get_alloc_displaystate();
QTAILQ_FOREACH(con, &consoles, next) {
if (con->console_type != GRAPHIC_CONSOLE &&
con->ds == NULL) {
text_console_do_init(con->chr, display_state);
}
/* Hook up into the qom tree here (not in new_console()), once
* all QemuConsoles are created and the order / numbering
* doesn't change any more */
name = g_strdup_printf("console[%d]", con->index);
object_property_add_child(container_get(object_get_root(), "/backend"),
qom: Drop parameter @errp of object_property_add() & friends The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort. Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too. We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers. The previous few commits demonstrated once again that ignoring programming errors is a bad idea. Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way. When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea. Drop parameter @errp and assert the preconditions instead. There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
2020-05-05 17:29:22 +02:00
name, OBJECT(con));
g_free(name);
}
return display_state;
}
void graphic_console_set_hwops(QemuConsole *con,
const GraphicHwOps *hw_ops,
void *opaque)
{
con->hw_ops = hw_ops;
con->hw = opaque;
}
QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
const GraphicHwOps *hw_ops,
void *opaque)
{
static const char noinit[] =
"Guest has not initialized the display (yet).";
int width = 640;
int height = 480;
QemuConsole *s;
DisplayState *ds;
DisplaySurface *surface;
ds = get_alloc_displaystate();
s = qemu_console_lookup_unused();
if (s) {
trace_console_gfx_reuse(s->index);
width = qemu_console_get_width(s, 0);
height = qemu_console_get_height(s, 0);
} else {
trace_console_gfx_new();
s = new_console(ds, GRAPHIC_CONSOLE, head);
s->ui_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
dpy_set_ui_info_timer, s);
}
graphic_console_set_hwops(s, hw_ops, opaque);
if (dev) {
qom: Put name parameter before value / visitor parameter The object_property_set_FOO() setters take property name and value in an unusual order: void object_property_set_FOO(Object *obj, FOO_TYPE value, const char *name, Error **errp) Having to pass value before name feels grating. Swap them. Same for object_property_set(), object_property_get(), and object_property_parse(). Convert callers with this Coccinelle script: @@ identifier fun = { object_property_get, object_property_parse, object_property_set_str, object_property_set_link, object_property_set_bool, object_property_set_int, object_property_set_uint, object_property_set, object_property_set_qobject }; expression obj, v, name, errp; @@ - fun(obj, v, name, errp) + fun(obj, name, v, errp) Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error message "no position information". Convert that one manually. Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by ARMSSE being used both as typedef and function-like macro there. Convert manually. Fails to convert hw/rx/rx-gdbsim.c, because Coccinelle gets confused by RXCPU being used both as typedef and function-like macro there. Convert manually. The other files using RXCPU that way don't need conversion. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200707160613.848843-27-armbru@redhat.com> [Straightforwad conflict with commit 2336172d9b "audio: set default value for pcspk.iobase property" resolved]
2020-07-07 18:05:54 +02:00
object_property_set_link(OBJECT(s), "device", OBJECT(dev),
&error_abort);
}
surface = qemu_create_placeholder_surface(width, height, noinit);
dpy_gfx_replace_surface(s, surface);
s->gl_unblock_timer = timer_new_ms(QEMU_CLOCK_REALTIME,
graphic_hw_gl_unblock_timer, s);
return s;
}
static const GraphicHwOps unused_ops = {
/* no callbacks */
};
void graphic_console_close(QemuConsole *con)
{
static const char unplugged[] =
"Guest display has been unplugged";
DisplaySurface *surface;
int width = qemu_console_get_width(con, 640);
int height = qemu_console_get_height(con, 480);
trace_console_gfx_close(con->index);
qom: Put name parameter before value / visitor parameter The object_property_set_FOO() setters take property name and value in an unusual order: void object_property_set_FOO(Object *obj, FOO_TYPE value, const char *name, Error **errp) Having to pass value before name feels grating. Swap them. Same for object_property_set(), object_property_get(), and object_property_parse(). Convert callers with this Coccinelle script: @@ identifier fun = { object_property_get, object_property_parse, object_property_set_str, object_property_set_link, object_property_set_bool, object_property_set_int, object_property_set_uint, object_property_set, object_property_set_qobject }; expression obj, v, name, errp; @@ - fun(obj, v, name, errp) + fun(obj, name, v, errp) Chokes on hw/arm/musicpal.c's lcd_refresh() with the unhelpful error message "no position information". Convert that one manually. Fails to convert hw/arm/armsse.c, because Coccinelle gets confused by ARMSSE being used both as typedef and function-like macro there. Convert manually. Fails to convert hw/rx/rx-gdbsim.c, because Coccinelle gets confused by RXCPU being used both as typedef and function-like macro there. Convert manually. The other files using RXCPU that way don't need conversion. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200707160613.848843-27-armbru@redhat.com> [Straightforwad conflict with commit 2336172d9b "audio: set default value for pcspk.iobase property" resolved]
2020-07-07 18:05:54 +02:00
object_property_set_link(OBJECT(con), "device", NULL, &error_abort);
graphic_console_set_hwops(con, &unused_ops, NULL);
if (con->gl) {
dpy_gl_scanout_disable(con);
}
surface = qemu_create_placeholder_surface(width, height, unplugged);
dpy_gfx_replace_surface(con, surface);
}
QemuConsole *qemu_console_lookup_by_index(unsigned int index)
{
QemuConsole *con;
QTAILQ_FOREACH(con, &consoles, next) {
if (con->index == index) {
return con;
}
}
return NULL;
}
QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
{
QemuConsole *con;
Object *obj;
uint32_t h;
QTAILQ_FOREACH(con, &consoles, next) {
obj = object_property_get_link(OBJECT(con),
"device", &error_abort);
if (DEVICE(obj) != dev) {
continue;
}
h = object_property_get_uint(OBJECT(con),
"head", &error_abort);
if (h != head) {
continue;
}
return con;
}
return NULL;
}
QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
uint32_t head, Error **errp)
{
DeviceState *dev;
QemuConsole *con;
dev = qdev_find_recursive(sysbus_get_default(), device_id);
if (dev == NULL) {
error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
"Device '%s' not found", device_id);
return NULL;
}
con = qemu_console_lookup_by_device(dev, head);
if (con == NULL) {
error_setg(errp, "Device %s (head %d) is not bound to a QemuConsole",
device_id, head);
return NULL;
}
return con;
}
QemuConsole *qemu_console_lookup_unused(void)
{
QemuConsole *con;
Object *obj;
QTAILQ_FOREACH(con, &consoles, next) {
if (con->hw_ops != &unused_ops) {
continue;
}
obj = object_property_get_link(OBJECT(con),
"device", &error_abort);
if (obj != NULL) {
continue;
}
return con;
}
return NULL;
}
bool qemu_console_is_visible(QemuConsole *con)
{
return (con == active_console) || (con->dcls > 0);
}
bool qemu_console_is_graphic(QemuConsole *con)
{
if (con == NULL) {
con = active_console;
}
return con && (con->console_type == GRAPHIC_CONSOLE);
}
bool qemu_console_is_fixedsize(QemuConsole *con)
{
if (con == NULL) {
con = active_console;
}
return con && (con->console_type != TEXT_CONSOLE);
}
bool qemu_console_is_gl_blocked(QemuConsole *con)
{
assert(con != NULL);
return con->gl_block;
}
char *qemu_console_get_label(QemuConsole *con)
{
if (con->console_type == GRAPHIC_CONSOLE) {
if (con->device) {
return g_strdup(object_get_typename(con->device));
}
return g_strdup("VGA");
} else {
if (con->chr && con->chr->label) {
return g_strdup(con->chr->label);
}
return g_strdup_printf("vc%d", con->index);
}
}
int qemu_console_get_index(QemuConsole *con)
{
if (con == NULL) {
con = active_console;
}
return con ? con->index : -1;
}
uint32_t qemu_console_get_head(QemuConsole *con)
{
if (con == NULL) {
con = active_console;
}
return con ? con->head : -1;
}
int qemu_console_get_width(QemuConsole *con, int fallback)
{
if (con == NULL) {
con = active_console;
}
if (con == NULL) {
return fallback;
}
switch (con->scanout.kind) {
case SCANOUT_DMABUF:
return con->scanout.dmabuf->width;
case SCANOUT_TEXTURE:
return con->scanout.texture.width;
case SCANOUT_SURFACE:
return surface_width(con->surface);
default:
return fallback;
}
}
int qemu_console_get_height(QemuConsole *con, int fallback)
{
if (con == NULL) {
con = active_console;
}
if (con == NULL) {
return fallback;
}
switch (con->scanout.kind) {
case SCANOUT_DMABUF:
return con->scanout.dmabuf->height;
case SCANOUT_TEXTURE:
return con->scanout.texture.height;
case SCANOUT_SURFACE:
return surface_height(con->surface);
default:
return fallback;
}
}
static void vc_chr_accept_input(Chardev *chr)
{
VCChardev *drv = VC_CHARDEV(chr);
QemuConsole *s = drv->console;
kbd_send_chars(s);
}
static void vc_chr_set_echo(Chardev *chr, bool echo)
{
VCChardev *drv = VC_CHARDEV(chr);
QemuConsole *s = drv->console;
s->echo = echo;
}
static void text_console_update_cursor_timer(void)
{
timer_mod(cursor_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
+ CONSOLE_CURSOR_PERIOD / 2);
}
static void text_console_update_cursor(void *opaque)
{
QemuConsole *s;
int count = 0;
cursor_visible_phase = !cursor_visible_phase;
QTAILQ_FOREACH(s, &consoles, next) {
if (qemu_console_is_graphic(s) ||
!qemu_console_is_visible(s)) {
continue;
}
count++;
graphic_hw_invalidate(s);
}
if (count) {
text_console_update_cursor_timer();
}
}
static const GraphicHwOps text_console_ops = {
.invalidate = text_console_invalidate,
.text_update = text_console_update,
};
static void text_console_do_init(Chardev *chr, DisplayState *ds)
{
VCChardev *drv = VC_CHARDEV(chr);
QemuConsole *s = drv->console;
int g_width = 80 * FONT_WIDTH;
int g_height = 24 * FONT_HEIGHT;
fifo8_create(&s->out_fifo, 16);
s->ds = ds;
s->y_displayed = 0;
s->y_base = 0;
s->total_height = DEFAULT_BACKSCROLL;
s->x = 0;
s->y = 0;
if (s->scanout.kind != SCANOUT_SURFACE) {
if (active_console && active_console->scanout.kind == SCANOUT_SURFACE) {
g_width = qemu_console_get_width(active_console, g_width);
g_height = qemu_console_get_height(active_console, g_height);
}
s->surface = qemu_create_displaysurface(g_width, g_height);
s->scanout.kind = SCANOUT_SURFACE;
}
s->hw_ops = &text_console_ops;
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 = QEMU_COLOR_WHITE;
s->t_attrib_default.bgcol = QEMU_COLOR_BLACK;
/* set current text attributes to default */
s->t_attrib = s->t_attrib_default;
text_console_resize(s);
if (chr->label) {
char *msg;
s->t_attrib.bgcol = QEMU_COLOR_BLUE;
msg = g_strdup_printf("%s console\r\n", chr->label);
vc_chr_write(chr, (uint8_t *)msg, strlen(msg));
g_free(msg);
s->t_attrib = s->t_attrib_default;
}
qemu_chr_be_event(chr, CHR_EVENT_OPENED);
}
static void vc_chr_open(Chardev *chr,
ChardevBackend *backend,
bool *be_opened,
Error **errp)
{
ChardevVC *vc = backend->u.vc.data;
VCChardev *drv = VC_CHARDEV(chr);
QemuConsole *s;
unsigned width = 0;
unsigned height = 0;
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;
}
trace_console_txt_new(width, height);
if (width == 0 || height == 0) {
s = new_console(NULL, TEXT_CONSOLE, 0);
} else {
s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
s->scanout.kind = SCANOUT_SURFACE;
s->surface = qemu_create_displaysurface(width, height);
}
if (!s) {
error_setg(errp, "cannot create text console");
return;
}
s->chr = chr;
drv->console = s;
if (display_state) {
text_console_do_init(chr, display_state);
}
/* console/chardev init sometimes completes elsewhere in a 2nd
* stage, so defer OPENED events until they are fully initialized
*/
*be_opened = false;
}
void qemu_console_resize(QemuConsole *s, int width, int height)
{
DisplaySurface *surface;
assert(s->console_type == GRAPHIC_CONSOLE);
if (qemu_console_get_width(s, -1) == width &&
qemu_console_get_height(s, -1) == height) {
return;
}
surface = qemu_create_displaysurface(width, height);
dpy_gfx_replace_surface(s, surface);
}
DisplaySurface *qemu_console_surface(QemuConsole *console)
{
switch (console->scanout.kind) {
case SCANOUT_SURFACE:
return console->surface;
default:
return NULL;
}
}
PixelFormat qemu_default_pixelformat(int bpp)
{
pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
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
return pf;
}
static QemuDisplay *dpys[DISPLAY_TYPE__MAX];
void qemu_display_register(QemuDisplay *ui)
{
assert(ui->type < DISPLAY_TYPE__MAX);
dpys[ui->type] = ui;
}
bool qemu_display_find_default(DisplayOptions *opts)
{
static DisplayType prio[] = {
#if defined(CONFIG_GTK)
DISPLAY_TYPE_GTK,
#endif
#if defined(CONFIG_SDL)
DISPLAY_TYPE_SDL,
#endif
#if defined(CONFIG_COCOA)
DISPLAY_TYPE_COCOA
#endif
};
int i;
for (i = 0; i < (int)ARRAY_SIZE(prio); i++) {
if (dpys[prio[i]] == NULL) {
ui_module_load_one(DisplayType_str(prio[i]));
}
if (dpys[prio[i]] == NULL) {
continue;
}
opts->type = prio[i];
return true;
}
return false;
}
void qemu_display_early_init(DisplayOptions *opts)
{
assert(opts->type < DISPLAY_TYPE__MAX);
if (opts->type == DISPLAY_TYPE_NONE) {
return;
}
if (dpys[opts->type] == NULL) {
ui_module_load_one(DisplayType_str(opts->type));
}
if (dpys[opts->type] == NULL) {
error_report("Display '%s' is not available.",
DisplayType_str(opts->type));
exit(1);
}
if (dpys[opts->type]->early_init) {
dpys[opts->type]->early_init(opts);
}
}
void qemu_display_init(DisplayState *ds, DisplayOptions *opts)
{
assert(opts->type < DISPLAY_TYPE__MAX);
if (opts->type == DISPLAY_TYPE_NONE) {
return;
}
assert(dpys[opts->type] != NULL);
dpys[opts->type]->init(ds, opts);
}
void qemu_display_help(void)
{
int idx;
printf("Available display backend types:\n");
printf("none\n");
for (idx = DISPLAY_TYPE_NONE; idx < DISPLAY_TYPE__MAX; idx++) {
if (!dpys[idx]) {
ui_module_load_one(DisplayType_str(idx));
}
if (dpys[idx]) {
printf("%s\n", DisplayType_str(dpys[idx]->type));
}
}
}
void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp)
{
int val;
ChardevVC *vc;
backend->type = CHARDEV_BACKEND_KIND_VC;
qapi: Don't special-case simple union wrappers Simple unions were carrying a special case that hid their 'data' QMP member from the resulting C struct, via the hack method QAPISchemaObjectTypeVariant.simple_union_type(). But by using the work we started by unboxing flat union and alternate branches, coupled with the ability to visit the members of an implicit type, we can now expose the simple union's implicit type in qapi-types.h: | struct q_obj_ImageInfoSpecificQCow2_wrapper { | ImageInfoSpecificQCow2 *data; | }; | | struct q_obj_ImageInfoSpecificVmdk_wrapper { | ImageInfoSpecificVmdk *data; | }; ... | struct ImageInfoSpecific { | ImageInfoSpecificKind type; | union { /* union tag is @type */ | void *data; |- ImageInfoSpecificQCow2 *qcow2; |- ImageInfoSpecificVmdk *vmdk; |+ q_obj_ImageInfoSpecificQCow2_wrapper qcow2; |+ q_obj_ImageInfoSpecificVmdk_wrapper vmdk; | } u; | }; Doing this removes asymmetry between QAPI's QMP side and its C side (both sides now expose 'data'), and means that the treatment of a simple union as sugar for a flat union is now equivalent in both languages (previously the two approaches used a different layer of dereferencing, where the simple union could be converted to a flat union with equivalent C layout but different {} on the wire, or to an equivalent QMP wire form but with different C representation). Using the implicit type also lets us get rid of the simple_union_type() hack. Of course, now all clients of simple unions have to adjust from using su->u.member to using su->u.member.data; while this touches a number of files in the tree, some earlier cleanup patches helped minimize the change to the initialization of a temporary variable rather than every single member access. The generated qapi-visit.c code is also affected by the layout change: |@@ -7393,10 +7393,10 @@ void visit_type_ImageInfoSpecific_member | } | switch (obj->type) { | case IMAGE_INFO_SPECIFIC_KIND_QCOW2: |- visit_type_ImageInfoSpecificQCow2(v, "data", &obj->u.qcow2, &err); |+ visit_type_q_obj_ImageInfoSpecificQCow2_wrapper_members(v, &obj->u.qcow2, &err); | break; | case IMAGE_INFO_SPECIFIC_KIND_VMDK: |- visit_type_ImageInfoSpecificVmdk(v, "data", &obj->u.vmdk, &err); |+ visit_type_q_obj_ImageInfoSpecificVmdk_wrapper_members(v, &obj->u.vmdk, &err); | break; | default: | abort(); Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1458254921-17042-13-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-03-17 23:48:37 +01:00
vc = backend->u.vc.data = g_new0(ChardevVC, 1);
qemu_chr_parse_common(opts, qapi_ChardevVC_base(vc));
val = qemu_opt_get_number(opts, "width", 0);
if (val != 0) {
vc->has_width = true;
vc->width = val;
}
val = qemu_opt_get_number(opts, "height", 0);
if (val != 0) {
vc->has_height = true;
vc->height = val;
}
val = qemu_opt_get_number(opts, "cols", 0);
if (val != 0) {
vc->has_cols = true;
vc->cols = val;
}
val = qemu_opt_get_number(opts, "rows", 0);
if (val != 0) {
vc->has_rows = true;
vc->rows = val;
}
}
static const TypeInfo qemu_console_info = {
.name = TYPE_QEMU_CONSOLE,
.parent = TYPE_OBJECT,
.instance_size = sizeof(QemuConsole),
.class_size = sizeof(QemuConsoleClass),
};
static void char_vc_class_init(ObjectClass *oc, void *data)
{
ChardevClass *cc = CHARDEV_CLASS(oc);
cc->parse = qemu_chr_parse_vc;
cc->open = vc_chr_open;
cc->chr_write = vc_chr_write;
cc->chr_accept_input = vc_chr_accept_input;
cc->chr_set_echo = vc_chr_set_echo;
}
static const TypeInfo char_vc_type_info = {
.name = TYPE_CHARDEV_VC,
.parent = TYPE_CHARDEV,
.instance_size = sizeof(VCChardev),
.class_init = char_vc_class_init,
};
void qemu_console_early_init(void)
{
/* set the default vc driver */
if (!object_class_by_name(TYPE_CHARDEV_VC)) {
type_register(&char_vc_type_info);
}
}
static void register_types(void)
{
type_register_static(&qemu_console_info);
}
type_init(register_types);