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qemu/include/ui/gtk.h
Akihiko Odaki aeffd071ed ui: Deliver refresh rate via QemuUIInfo 
This change adds a new member, refresh_rate to QemuUIInfo in
include/ui/console.h. It represents the refresh rate of the
physical display backend, and it is more appropriate than
GUI update interval as the refresh rate which the emulated device
reports:
- sdl may set GUI update interval shorter than the refresh rate
  of the physical display to respond to user-generated events.
- sdl and vnc aggressively changes GUI update interval, but
  a guests is typically not designed to respond to frequent
  refresh rate changes, or frequent "display mode" changes in
  general. The frequency of refresh rate changes of the physical
  display backend matches better to the guest's expectation.

QemuUIInfo also has other members representing "display mode",
which makes it suitable for refresh rate representation. It has
a throttling of update notifications, and prevents frequent changes
of the display mode.

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20220226115516.59830-3-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-06-14 10:34:37 +02:00

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#ifndef UI_GTK_H
#define UI_GTK_H
/* Work around an -Wstrict-prototypes warning in GTK headers */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstrict-prototypes"
#include <gtk/gtk.h>
#pragma GCC diagnostic pop
#include <gdk/gdkkeysyms.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#include <X11/XKBlib.h>
#endif
#ifdef GDK_WINDOWING_WAYLAND
#include <gdk/gdkwayland.h>
#endif
#include "ui/clipboard.h"
#include "ui/console.h"
#include "ui/kbd-state.h"
#if defined(CONFIG_OPENGL)
#include "ui/egl-helpers.h"
#include "ui/egl-context.h"
#endif
#ifdef CONFIG_VTE
#include "qemu/fifo8.h"
#endif
#define MAX_VCS 10
typedef struct GtkDisplayState GtkDisplayState;
typedef struct VirtualGfxConsole {
GtkWidget *drawing_area;
DisplayGLCtx dgc;
DisplayChangeListener dcl;
QKbdState *kbd;
DisplaySurface *ds;
pixman_image_t *convert;
cairo_surface_t *surface;
double scale_x;
double scale_y;
#if defined(CONFIG_OPENGL)
QemuGLShader *gls;
EGLContext ectx;
EGLSurface esurface;
int glupdates;
int x, y, w, h;
egl_fb guest_fb;
egl_fb win_fb;
egl_fb cursor_fb;
int cursor_x;
int cursor_y;
bool y0_top;
bool scanout_mode;
bool has_dmabuf;
#endif
} VirtualGfxConsole;
#if defined(CONFIG_VTE)
typedef struct VirtualVteConsole {
GtkWidget *box;
GtkWidget *scrollbar;
GtkWidget *terminal;
Chardev *chr;
Fifo8 out_fifo;
bool echo;
} VirtualVteConsole;
#endif
typedef enum VirtualConsoleType {
GD_VC_GFX,
GD_VC_VTE,
} VirtualConsoleType;
typedef struct VirtualConsole {
GtkDisplayState *s;
char *label;
GtkWidget *window;
GtkWidget *menu_item;
GtkWidget *tab_item;
GtkWidget *focus;
VirtualConsoleType type;
union {
VirtualGfxConsole gfx;
#if defined(CONFIG_VTE)
VirtualVteConsole vte;
#endif
};
} VirtualConsole;
struct GtkDisplayState {
GtkWidget *window;
GtkWidget *menu_bar;
GtkAccelGroup *accel_group;
GtkWidget *machine_menu_item;
GtkWidget *machine_menu;
GtkWidget *pause_item;
GtkWidget *reset_item;
GtkWidget *powerdown_item;
GtkWidget *quit_item;
GtkWidget *view_menu_item;
GtkWidget *view_menu;
GtkWidget *full_screen_item;
GtkWidget *copy_item;
GtkWidget *zoom_in_item;
GtkWidget *zoom_out_item;
GtkWidget *zoom_fixed_item;
GtkWidget *zoom_fit_item;
GtkWidget *grab_item;
GtkWidget *grab_on_hover_item;
int nb_vcs;
VirtualConsole vc[MAX_VCS];
GtkWidget *show_tabs_item;
GtkWidget *untabify_item;
GtkWidget *show_menubar_item;
GtkWidget *vbox;
GtkWidget *notebook;
int button_mask;
gboolean last_set;
int last_x;
int last_y;
int grab_x_root;
int grab_y_root;
VirtualConsole *kbd_owner;
VirtualConsole *ptr_owner;
gboolean full_screen;
GdkCursor *null_cursor;
Notifier mouse_mode_notifier;
gboolean free_scale;
bool external_pause_update;
QemuClipboardPeer cbpeer;
uint32_t cbpending[QEMU_CLIPBOARD_SELECTION__COUNT];
GtkClipboard *gtkcb[QEMU_CLIPBOARD_SELECTION__COUNT];
bool cbowner[QEMU_CLIPBOARD_SELECTION__COUNT];
DisplayOptions *opts;
};
extern bool gtk_use_gl_area;
/* ui/gtk.c */
void gd_update_windowsize(VirtualConsole *vc);
void gd_update_monitor_refresh_rate(VirtualConsole *vc, GtkWidget *widget);
void gd_hw_gl_flushed(void *vc);
/* ui/gtk-egl.c */
void gd_egl_init(VirtualConsole *vc);
void gd_egl_draw(VirtualConsole *vc);
void gd_egl_update(DisplayChangeListener *dcl,
int x, int y, int w, int h);
void gd_egl_refresh(DisplayChangeListener *dcl);
void gd_egl_switch(DisplayChangeListener *dcl,
DisplaySurface *surface);
QEMUGLContext gd_egl_create_context(DisplayGLCtx *dgc,
QEMUGLParams *params);
void gd_egl_scanout_disable(DisplayChangeListener *dcl);
void gd_egl_scanout_texture(DisplayChangeListener *dcl,
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 w, uint32_t h);
void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf);
void gd_egl_cursor_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf, bool have_hot,
uint32_t hot_x, uint32_t hot_y);
void gd_egl_cursor_position(DisplayChangeListener *dcl,
uint32_t pos_x, uint32_t pos_y);
void gd_egl_flush(DisplayChangeListener *dcl,
uint32_t x, uint32_t y, uint32_t w, uint32_t h);
void gd_egl_scanout_flush(DisplayChangeListener *dcl,
uint32_t x, uint32_t y, uint32_t w, uint32_t h);
void gtk_egl_init(DisplayGLMode mode);
int gd_egl_make_current(DisplayGLCtx *dgc,
QEMUGLContext ctx);
/* ui/gtk-gl-area.c */
void gd_gl_area_init(VirtualConsole *vc);
void gd_gl_area_draw(VirtualConsole *vc);
void gd_gl_area_update(DisplayChangeListener *dcl,
int x, int y, int w, int h);
void gd_gl_area_refresh(DisplayChangeListener *dcl);
void gd_gl_area_switch(DisplayChangeListener *dcl,
DisplaySurface *surface);
QEMUGLContext gd_gl_area_create_context(DisplayGLCtx *dgc,
QEMUGLParams *params);
void gd_gl_area_destroy_context(DisplayGLCtx *dgc,
QEMUGLContext ctx);
void gd_gl_area_scanout_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf);
void gd_gl_area_scanout_texture(DisplayChangeListener *dcl,
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 w, uint32_t h);
void gd_gl_area_scanout_disable(DisplayChangeListener *dcl);
void gd_gl_area_scanout_flush(DisplayChangeListener *dcl,
uint32_t x, uint32_t y, uint32_t w, uint32_t h);
void gtk_gl_area_init(void);
int gd_gl_area_make_current(DisplayGLCtx *dgc,
QEMUGLContext ctx);
/* gtk-clipboard.c */
void gd_clipboard_init(GtkDisplayState *gd);
#endif /* UI_GTK_H */
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