console: add kbd_put_keysym_console

So you can send keysyms to a specific (text terminal) console. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
console: rework text terminal cursor logic
2014-05-26 08:41:02 +02:00 · 2014-05-26 08:41:02 +02:00 · 2014-05-26 08:41:02 +02:00 · 2014-05-26 08:41:02 +02:00 · 2014-05-26 08:41:02 +02:00
2 changed files with 118 additions and 116 deletions
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -81,6 +81,7 @@ void do_mouse_set(Monitor *mon, const QDict *qdict);
 #define QEMU_KEY_CTRL_PAGEUP     0xe406
 #define QEMU_KEY_CTRL_PAGEDOWN   0xe407

+void kbd_put_keysym_console(QemuConsole *s, int keysym);
 void kbd_put_keysym(int keysym);

 /* consoles */
--- a/ui/console.c
+++ b/ui/console.c
@@ -143,8 +143,6 @@ struct QemuConsole {
    TextCell *cells;
    int text_x[2], text_y[2], cursor_invalidate;
    int echo;
-    bool cursor_visible_phase;
-    QEMUTimer *cursor_timer;

    int update_x0;
    int update_y0;
@@ -177,10 +175,14 @@ static DisplayState *display_state;
 static QemuConsole *active_console;
 static QemuConsole *consoles[MAX_CONSOLES];
 static int nb_consoles = 0;
+static bool cursor_visible_phase;
+static QEMUTimer *cursor_timer;

 static void text_console_do_init(CharDriverState *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 void gui_update(void *opaque)
 {
@@ -475,6 +477,9 @@ static inline void text_update_xy(QemuConsole *s, int x, int 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)
@@ -490,25 +495,20 @@ static void update_xy(QemuConsole *s, int x, int y)
    TextCell *c;
    int y1, y2;

-    if (!qemu_console_is_visible(s)) {
-        return;
-    }
-
    if (s->ds->have_text) {
        text_update_xy(s, x, y);
    }

-    if (s->ds->have_gfx) {
-        y1 = (s->y_base + y) % s->total_height;
-        y2 = y1 - s->y_displayed;
-        if (y2 < 0)
-            y2 += s->total_height;
-        if (y2 < s->height) {
-            c = &s->cells[y1 * s->width + x];
-            vga_putcharxy(s, x, y2, c->ch,
-                          &(c->t_attrib));
-            invalidate_xy(s, x, y2);
-        }
+    y1 = (s->y_base + y) % s->total_height;
+    y2 = y1 - s->y_displayed;
+    if (y2 < 0) {
+        y2 += s->total_height;
+    }
+    if (y2 < s->height) {
+        c = &s->cells[y1 * s->width + x];
+        vga_putcharxy(s, x, y2, c->ch,
+                      &(c->t_attrib));
+        invalidate_xy(s, x, y2);
    }
 }

@@ -518,33 +518,28 @@ static void console_show_cursor(QemuConsole *s, int show)
    int y, y1;
    int x = s->x;

-    if (!qemu_console_is_visible(s)) {
-        return;
-    }
-
    if (s->ds->have_text) {
        s->cursor_invalidate = 1;
    }

-    if (s->ds->have_gfx) {
-        if (x >= s->width) {
-            x = s->width - 1;
-        }
-        y1 = (s->y_base + s->y) % s->total_height;
-        y = y1 - s->y_displayed;
-        if (y < 0)
-            y += s->total_height;
-        if (y < s->height) {
-            c = &s->cells[y1 * s->width + x];
-            if (show && s->cursor_visible_phase) {
-                TextAttributes t_attrib = s->t_attrib_default;
-                t_attrib.invers = !(t_attrib.invers); /* invert fg and bg */
-                vga_putcharxy(s, x, y, c->ch, &t_attrib);
-            } else {
-                vga_putcharxy(s, x, y, c->ch, &(c->t_attrib));
-            }
-            invalidate_xy(s, x, y);
+    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);
    }
 }

@@ -554,10 +549,6 @@ static void console_refresh(QemuConsole *s)
    TextCell *c;
    int x, y, y1;

-    if (!qemu_console_is_visible(s)) {
-        return;
-    }
-
    if (s->ds->have_text) {
        s->text_x[0] = 0;
        s->text_y[0] = 0;
@@ -566,25 +557,23 @@ static void console_refresh(QemuConsole *s)
        s->cursor_invalidate = 1;
    }

-    if (s->ds->have_gfx) {
-        vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
-                      color_table_rgb[0][COLOR_BLACK]);
-        y1 = s->y_displayed;
-        for (y = 0; y < s->height; y++) {
-            c = s->cells + y1 * s->width;
-            for (x = 0; x < s->width; x++) {
-                vga_putcharxy(s, x, y, c->ch,
-                              &(c->t_attrib));
-                c++;
-            }
-            if (++y1 == s->total_height) {
-                y1 = 0;
-            }
+    vga_fill_rect(s, 0, 0, surface_width(surface), surface_height(surface),
+                  color_table_rgb[0][COLOR_BLACK]);
+    y1 = s->y_displayed;
+    for (y = 0; y < s->height; y++) {
+        c = s->cells + y1 * s->width;
+        for (x = 0; x < s->width; x++) {
+            vga_putcharxy(s, x, y, c->ch,
+                          &(c->t_attrib));
+            c++;
+        }
+        if (++y1 == s->total_height) {
+            y1 = 0;
        }
-        console_show_cursor(s, 1);
-        dpy_gfx_update(s, 0, 0,
-                       surface_width(surface), surface_height(surface));
    }
+    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)
@@ -640,7 +629,7 @@ static void console_put_lf(QemuConsole *s)
            c->t_attrib = s->t_attrib_default;
            c++;
        }
-        if (qemu_console_is_visible(s) && s->y_displayed == s->y_base) {
+        if (s->y_displayed == s->y_base) {
            if (s->ds->have_text) {
                s->text_x[0] = 0;
                s->text_y[0] = 0;
@@ -648,18 +637,16 @@ static void console_put_lf(QemuConsole *s)
                s->text_y[1] = s->height - 1;
            }

-            if (s->ds->have_gfx) {
-                vga_bitblt(s, 0, FONT_HEIGHT, 0, 0,
-                           s->width * FONT_WIDTH,
-                           (s->height - 1) * FONT_HEIGHT);
-                vga_fill_rect(s, 0, (s->height - 1) * FONT_HEIGHT,
-                              s->width * FONT_WIDTH, FONT_HEIGHT,
-                              color_table_rgb[0][s->t_attrib_default.bgcol]);
-                s->update_x0 = 0;
-                s->update_y0 = 0;
-                s->update_x1 = s->width * FONT_WIDTH;
-                s->update_y1 = s->height * FONT_HEIGHT;
-            }
+            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;
        }
    }
 }
@@ -1004,9 +991,6 @@ void console_select(unsigned int index)
    if (s) {
        DisplayState *ds = s->ds;

-        if (active_console && active_console->cursor_timer) {
-            timer_del(active_console->cursor_timer);
-        }
        active_console = s;
        if (ds->have_gfx) {
            QLIST_FOREACH(dcl, &ds->listeners, next) {
@@ -1023,10 +1007,7 @@ void console_select(unsigned int index)
        if (ds->have_text) {
            dpy_text_resize(s, s->width, s->height);
        }
-        if (s->cursor_timer) {
-            timer_mod(s->cursor_timer,
-                   qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + CONSOLE_CURSOR_PERIOD / 2);
-        }
+        text_console_update_cursor(NULL);
    }
 }

@@ -1075,13 +1056,11 @@ static void kbd_send_chars(void *opaque)
 }

 /* called when an ascii key is pressed */
-void kbd_put_keysym(int keysym)
+void kbd_put_keysym_console(QemuConsole *s, int keysym)
 {
-    QemuConsole *s;
    uint8_t buf[16], *q;
    int c;

-    s = active_console;
    if (!s || (s->console_type == GRAPHIC_CONSOLE))
        return;

@@ -1130,6 +1109,11 @@ void kbd_put_keysym(int keysym)
    }
 }

+void kbd_put_keysym(int keysym)
+{
+    kbd_put_keysym_console(active_console, keysym);
+}
+
 static void text_console_invalidate(void *opaque)
 {
    QemuConsole *s = (QemuConsole *) opaque;
@@ -1167,9 +1151,9 @@ static void text_console_update(void *opaque, console_ch_t *chardata)
    }
 }

-static QemuConsole *new_console(DisplayState *ds, console_type_t console_type)
+static QemuConsole *new_console(DisplayState *ds, console_type_t console_type,
+                                uint32_t head)
 {
-    Error *local_err = NULL;
    Object *obj;
    QemuConsole *s;
    int i;
@@ -1179,13 +1163,14 @@ static QemuConsole *new_console(DisplayState *ds, console_type_t console_type)

    obj = object_new(TYPE_QEMU_CONSOLE);
    s = QEMU_CONSOLE(obj);
+    s->head = head;
    object_property_add_link(obj, "device", TYPE_DEVICE,
                             (Object **)&s->device,
                             object_property_allow_set_link,
                             OBJ_PROP_LINK_UNREF_ON_RELEASE,
-                             &local_err);
+                             &error_abort);
    object_property_add_uint32_ptr(obj, "head",
-                                   &s->head, &local_err);
+                                   &s->head, &error_abort);

    if (!active_console || ((active_console->console_type != GRAPHIC_CONSOLE) &&
        (console_type == GRAPHIC_CONSOLE))) {
@@ -1270,19 +1255,18 @@ DisplaySurface *qemu_create_displaysurface_from(int width, int height, int bpp,
    return surface;
 }

-static DisplaySurface *qemu_create_dummy_surface(void)
+static DisplaySurface *qemu_create_message_surface(int w, int h,
+                                                   const char *msg)
 {
-    static const char msg[] =
-        "This VM has no graphic display device.";
-    DisplaySurface *surface = qemu_create_displaysurface(640, 480);
+    DisplaySurface *surface = qemu_create_displaysurface(w, h);
    pixman_color_t bg = color_table_rgb[0][COLOR_BLACK];
    pixman_color_t fg = color_table_rgb[0][COLOR_WHITE];
    pixman_image_t *glyph;
    int len, x, y, i;

    len = strlen(msg);
-    x = (640/FONT_WIDTH  - len) / 2;
-    y = (480/FONT_HEIGHT - 1)   / 2;
+    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,
@@ -1304,6 +1288,8 @@ void qemu_free_displaysurface(DisplaySurface *surface)

 void register_displaychangelistener(DisplayChangeListener *dcl)
 {
+    static const char nodev[] =
+        "This VM has no graphic display device.";
    static DisplaySurface *dummy;
    QemuConsole *con;

@@ -1322,11 +1308,12 @@ void register_displaychangelistener(DisplayChangeListener *dcl)
            dcl->ops->dpy_gfx_switch(dcl, con->surface);
        } else {
            if (!dummy) {
-                dummy = qemu_create_dummy_surface();
+                dummy = qemu_create_message_surface(640, 480, nodev);
            }
            dcl->ops->dpy_gfx_switch(dcl, dummy);
        }
    }
+    text_console_update_cursor(NULL);
 }

 void update_displaychangelistener(DisplayChangeListener *dcl,
@@ -1550,6 +1537,8 @@ 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;
 }
@@ -1560,7 +1549,6 @@ static DisplayState *get_alloc_displaystate(void)
 */
 DisplayState *init_displaystate(void)
 {
-    Error *local_err = NULL;
    gchar *name;
    int i;

@@ -1579,7 +1567,7 @@ DisplayState *init_displaystate(void)
         * doesn't change any more */
        name = g_strdup_printf("console[%d]", i);
        object_property_add_child(container_get(object_get_root(), "/backend"),
-                                  name, OBJECT(consoles[i]), &local_err);
+                                  name, OBJECT(consoles[i]), &error_abort);
        g_free(name);
    }

@@ -1590,7 +1578,8 @@ QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
                                  const GraphicHwOps *hw_ops,
                                  void *opaque)
 {
-    Error *local_err = NULL;
+    static const char noinit[] =
+        "Guest has not initialized the display (yet).";
    int width = 640;
    int height = 480;
    QemuConsole *s;
@@ -1598,17 +1587,15 @@ QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,

    ds = get_alloc_displaystate();
    trace_console_gfx_new();
-    s = new_console(ds, GRAPHIC_CONSOLE);
+    s = new_console(ds, GRAPHIC_CONSOLE, head);
    s->hw_ops = hw_ops;
    s->hw = opaque;
    if (dev) {
-        object_property_set_link(OBJECT(s), OBJECT(dev),
-                                 "device", &local_err);
-        object_property_set_int(OBJECT(s), head,
-                                "head", &local_err);
+        object_property_set_link(OBJECT(s), OBJECT(dev), "device",
+                                 &error_abort);
    }

-    s->surface = qemu_create_displaysurface(width, height);
+    s->surface = qemu_create_message_surface(width, height, noinit);
    return s;
 }

@@ -1622,7 +1609,6 @@ QemuConsole *qemu_console_lookup_by_index(unsigned int index)

 QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
 {
-    Error *local_err = NULL;
    Object *obj;
    uint32_t h;
    int i;
@@ -1632,12 +1618,12 @@ QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head)
            continue;
        }
        obj = object_property_get_link(OBJECT(consoles[i]),
-                                       "device", &local_err);
+                                       "device", &error_abort);
        if (DEVICE(obj) != dev) {
            continue;
        }
        h = object_property_get_int(OBJECT(consoles[i]),
-                                    "head", &local_err);
+                                    "head", &error_abort);
        if (h != head) {
            continue;
        }
@@ -1712,14 +1698,32 @@ static void text_console_set_echo(CharDriverState *chr, bool echo)
    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 = opaque;
+    QemuConsole *s;
+    int i, count = 0;

-    s->cursor_visible_phase = !s->cursor_visible_phase;
-    graphic_hw_invalidate(s);
-    timer_mod(s->cursor_timer,
-                   qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + CONSOLE_CURSOR_PERIOD / 2);
+    cursor_visible_phase = !cursor_visible_phase;
+
+    for (i = 0; i < nb_consoles; i++) {
+        s = consoles[i];
+        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 = {
@@ -1755,9 +1759,6 @@ static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
        s->surface = qemu_create_displaysurface(g_width, g_height);
    }

-    s->cursor_timer =
-        timer_new_ms(QEMU_CLOCK_REALTIME, text_console_update_cursor, s);
-
    s->hw_ops = &text_console_ops;
    s->hw = s;

@@ -1811,9 +1812,9 @@ static CharDriverState *text_console_init(ChardevVC *vc)

    trace_console_txt_new(width, height);
    if (width == 0 || height == 0) {
-        s = new_console(NULL, TEXT_CONSOLE);
+        s = new_console(NULL, TEXT_CONSOLE, 0);
    } else {
-        s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE);
+        s = new_console(NULL, TEXT_CONSOLE_FIXED_SIZE, 0);
        s->surface = qemu_create_displaysurface(width, height);
    }
Author	SHA1	Message	Date
Gerd Hoffmann	3f9a6e852e	console: add kbd_put_keysym_console So you can send keysyms to a specific (text terminal) console. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>	2014-05-26 08:41:02 +02:00
Gerd Hoffmann	aea7947c74	console: rework text terminal cursor logic Have a global timer. Update all visible terminal windows syncronously. Right now this can be the active_console only, but that will change soon. The global timer will disable itself if not needed, so we only have to care start it if needed. Which might be at console switch time or when a new displaychangelistener is registered. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>	2014-05-26 08:41:02 +02:00
Gerd Hoffmann	b35e3ba01a	console: update text terminal surface unconditionally These days each QemuConsole has its own private DisplaySurface, so we can simply render updates all the time. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>	2014-05-26 08:41:02 +02:00
Gerd Hoffmann	521a580d23	console: nicer initial screen Now that we have a function to create a fancy DisplaySurface with a message for the user, to handle non-existing graphics hardware, we can make it more generic and use it for other things too. This patch adds a text line to the in initial DisplaySurface, notifying the user that the display isn't initialized yet by the guest. You can see this in action when starting qemu with '-S'. Also when booting ovmf in qemu (which needs a few moments to initialize itself before it initializes the vga). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>	2014-05-26 08:41:02 +02:00
Kirill Batuzov	afff2b15e8	console: Abort on property access errors All defined properties of QemuConsole are mandatory and no access to them should fail. Nevertheless not checking returned errors is bad because in case of unexpected failure it will hide the bug and cause a memory leak. Abort in case of unexpected property access errors. This change exposed a bug where an attempt was made to write to a read-only property "head". Set "head" property's value at creation time and do not attempt to change it later. This fixes the bug mentioned above. Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>	2014-05-26 08:41:02 +02:00