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qemu/include/ui/console.h
Akihiko Odaki 4bba839808 ui/console: Remove dpy_cursor_define_supported() 
Remove dpy_cursor_define_supported() as it brings no benefit today and
it has a few inherent problems.

All graphical displays except egl-headless support cursor composition
without DMA-BUF, and egl-headless is meant to be used in conjunction
with another graphical display, so dpy_cursor_define_supported()
always returns true and meaningless.

Even if we add a new display without cursor composition in the future,
dpy_cursor_define_supported() will be problematic as a cursor display
fix for it because some display devices like virtio-gpu cannot tell the
lack of cursor composition capability to the guest and are unable to
utilize the value the function returns. Therefore, all non-headless
graphical displays must actually implement cursor composition for
correct cursor display.

Another problem with dpy_cursor_define_supported() is that it returns
true even if only some of the display listeners support cursor
composition, which is wrong unless all display listeners that lack
cursor composition is headless.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Phil Dennis-Jordan <phil@philjordan.eu>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20240715-cursor-v3-4-afa5b9492dbf@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-16 20:04:08 +02:00

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#ifndef CONSOLE_H
#define CONSOLE_H
#include "ui/qemu-pixman.h"
#include "qom/object.h"
#include "qemu/notify.h"
#include "qapi/qapi-types-ui.h"
#include "ui/input.h"
#include "ui/surface.h"
#include "ui/dmabuf.h"
#define TYPE_QEMU_CONSOLE "qemu-console"
OBJECT_DECLARE_TYPE(QemuConsole, QemuConsoleClass, QEMU_CONSOLE)
#define TYPE_QEMU_GRAPHIC_CONSOLE "qemu-graphic-console"
OBJECT_DECLARE_SIMPLE_TYPE(QemuGraphicConsole, QEMU_GRAPHIC_CONSOLE)
#define TYPE_QEMU_TEXT_CONSOLE "qemu-text-console"
OBJECT_DECLARE_SIMPLE_TYPE(QemuTextConsole, QEMU_TEXT_CONSOLE)
#define TYPE_QEMU_FIXED_TEXT_CONSOLE "qemu-fixed-text-console"
OBJECT_DECLARE_SIMPLE_TYPE(QemuFixedTextConsole, QEMU_FIXED_TEXT_CONSOLE)
#define QEMU_IS_GRAPHIC_CONSOLE(c) \
object_dynamic_cast(OBJECT(c), TYPE_QEMU_GRAPHIC_CONSOLE)
#define QEMU_IS_TEXT_CONSOLE(c) \
object_dynamic_cast(OBJECT(c), TYPE_QEMU_TEXT_CONSOLE)
#define QEMU_IS_FIXED_TEXT_CONSOLE(c) \
object_dynamic_cast(OBJECT(c), TYPE_QEMU_FIXED_TEXT_CONSOLE)
/* keyboard/mouse support */
#define MOUSE_EVENT_LBUTTON 0x01
#define MOUSE_EVENT_RBUTTON 0x02
#define MOUSE_EVENT_MBUTTON 0x04
#define MOUSE_EVENT_WHEELUP 0x08
#define MOUSE_EVENT_WHEELDN 0x10
/* identical to the ps/2 keyboard bits */
#define QEMU_SCROLL_LOCK_LED (1 << 0)
#define QEMU_NUM_LOCK_LED (1 << 1)
#define QEMU_CAPS_LOCK_LED (1 << 2)
/* in ms */
#define GUI_REFRESH_INTERVAL_DEFAULT 30
#define GUI_REFRESH_INTERVAL_IDLE 3000
/* Color number is match to standard vga palette */
enum qemu_color_names {
QEMU_COLOR_BLACK = 0,
QEMU_COLOR_BLUE = 1,
QEMU_COLOR_GREEN = 2,
QEMU_COLOR_CYAN = 3,
QEMU_COLOR_RED = 4,
QEMU_COLOR_MAGENTA = 5,
QEMU_COLOR_YELLOW = 6,
QEMU_COLOR_WHITE = 7
};
/* Convert to curses char attributes */
#define ATTR2CHTYPE(c, fg, bg, bold) \
((bold) << 21 | (bg) << 11 | (fg) << 8 | (c))
typedef void QEMUPutKBDEvent(void *opaque, int keycode);
typedef void QEMUPutLEDEvent(void *opaque, int ledstate);
typedef void QEMUPutMouseEvent(void *opaque, int dx, int dy, int dz, int buttons_state);
typedef struct QEMUPutMouseEntry QEMUPutMouseEntry;
typedef struct QEMUPutKbdEntry QEMUPutKbdEntry;
typedef struct QEMUPutLEDEntry QEMUPutLEDEntry;
QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func,
void *opaque);
QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
void *opaque, int absolute,
const char *name);
void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry);
void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry);
QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func, void *opaque);
void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry);
void kbd_put_ledstate(int ledstate);
bool qemu_mouse_set(int index, Error **errp);
/* keysym is a unicode code except for special keys (see QEMU_KEY_xxx
constants) */
#define QEMU_KEY_ESC1(c) ((c) | 0xe100)
#define QEMU_KEY_TAB 0x0009
#define QEMU_KEY_BACKSPACE 0x007f
#define QEMU_KEY_UP QEMU_KEY_ESC1('A')
#define QEMU_KEY_DOWN QEMU_KEY_ESC1('B')
#define QEMU_KEY_RIGHT QEMU_KEY_ESC1('C')
#define QEMU_KEY_LEFT QEMU_KEY_ESC1('D')
#define QEMU_KEY_HOME QEMU_KEY_ESC1(1)
#define QEMU_KEY_END QEMU_KEY_ESC1(4)
#define QEMU_KEY_PAGEUP QEMU_KEY_ESC1(5)
#define QEMU_KEY_PAGEDOWN QEMU_KEY_ESC1(6)
#define QEMU_KEY_DELETE QEMU_KEY_ESC1(3)
#define QEMU_KEY_CTRL_UP 0xe400
#define QEMU_KEY_CTRL_DOWN 0xe401
#define QEMU_KEY_CTRL_LEFT 0xe402
#define QEMU_KEY_CTRL_RIGHT 0xe403
#define QEMU_KEY_CTRL_HOME 0xe404
#define QEMU_KEY_CTRL_END 0xe405
#define QEMU_KEY_CTRL_PAGEUP 0xe406
#define QEMU_KEY_CTRL_PAGEDOWN 0xe407
void qemu_text_console_put_keysym(QemuTextConsole *s, int keysym);
bool qemu_text_console_put_qcode(QemuTextConsole *s, int qcode, bool ctrl);
void qemu_text_console_put_string(QemuTextConsole *s, const char *str, int len);
/* Touch devices */
typedef struct touch_slot {
int x;
int y;
int tracking_id;
} touch_slot;
void console_handle_touch_event(QemuConsole *con,
struct touch_slot touch_slots[INPUT_EVENT_SLOTS_MAX],
uint64_t num_slot,
int width, int height,
double x, double y,
InputMultiTouchType type,
Error **errp);
/* consoles */
struct QemuConsoleClass {
ObjectClass parent_class;
};
typedef struct ScanoutTexture {
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;
void *d3d_tex2d;
} ScanoutTexture;
typedef struct QemuUIInfo {
/* physical dimension */
uint16_t width_mm;
uint16_t height_mm;
/* geometry */
int xoff;
int yoff;
uint32_t width;
uint32_t height;
uint32_t refresh_rate;
} QemuUIInfo;
/* cursor data format is 32bit RGBA */
typedef struct QEMUCursor {
uint16_t width, height;
int hot_x, hot_y;
int refcount;
uint32_t data[];
} QEMUCursor;
QEMUCursor *cursor_alloc(uint16_t width, uint16_t height);
QEMUCursor *cursor_ref(QEMUCursor *c);
void cursor_unref(QEMUCursor *c);
QEMUCursor *cursor_builtin_hidden(void);
QEMUCursor *cursor_builtin_left_ptr(void);
void cursor_print_ascii_art(QEMUCursor *c, const char *prefix);
int cursor_get_mono_bpl(QEMUCursor *c);
void cursor_set_mono(QEMUCursor *c,
uint32_t foreground, uint32_t background, uint8_t *image,
int transparent, uint8_t *mask);
void cursor_get_mono_image(QEMUCursor *c, int foreground, uint8_t *mask);
void cursor_get_mono_mask(QEMUCursor *c, int transparent, uint8_t *mask);
typedef void *QEMUGLContext;
typedef struct QEMUGLParams QEMUGLParams;
struct QEMUGLParams {
int major_ver;
int minor_ver;
};
enum display_scanout {
SCANOUT_NONE,
SCANOUT_SURFACE,
SCANOUT_TEXTURE,
SCANOUT_DMABUF,
};
typedef struct DisplayScanout {
enum display_scanout kind;
union {
/* DisplaySurface *surface; is kept in QemuConsole */
ScanoutTexture texture;
QemuDmaBuf *dmabuf;
};
} DisplayScanout;
typedef struct DisplayState DisplayState;
typedef struct DisplayGLCtx DisplayGLCtx;
typedef struct DisplayChangeListenerOps {
const char *dpy_name;
/* optional */
void (*dpy_refresh)(DisplayChangeListener *dcl);
/* optional */
void (*dpy_gfx_update)(DisplayChangeListener *dcl,
int x, int y, int w, int h);
/* optional */
void (*dpy_gfx_switch)(DisplayChangeListener *dcl,
struct DisplaySurface *new_surface);
/* optional */
bool (*dpy_gfx_check_format)(DisplayChangeListener *dcl,
pixman_format_code_t format);
/* optional */
void (*dpy_text_cursor)(DisplayChangeListener *dcl,
int x, int y);
/* optional */
void (*dpy_text_resize)(DisplayChangeListener *dcl,
int w, int h);
/* optional */
void (*dpy_text_update)(DisplayChangeListener *dcl,
int x, int y, int w, int h);
/* optional */
void (*dpy_mouse_set)(DisplayChangeListener *dcl,
int x, int y, bool on);
/* optional */
void (*dpy_cursor_define)(DisplayChangeListener *dcl,
QEMUCursor *cursor);
/* required if GL */
void (*dpy_gl_scanout_disable)(DisplayChangeListener *dcl);
/* required if GL */
void (*dpy_gl_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 *d3d_tex2d);
/* optional (default to true if has dpy_gl_scanout_dmabuf) */
bool (*dpy_has_dmabuf)(DisplayChangeListener *dcl);
/* optional */
void (*dpy_gl_scanout_dmabuf)(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf);
/* optional */
void (*dpy_gl_cursor_dmabuf)(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf, bool have_hot,
uint32_t hot_x, uint32_t hot_y);
/* optional */
void (*dpy_gl_cursor_position)(DisplayChangeListener *dcl,
uint32_t pos_x, uint32_t pos_y);
/* optional */
void (*dpy_gl_release_dmabuf)(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf);
/* required if GL */
void (*dpy_gl_update)(DisplayChangeListener *dcl,
uint32_t x, uint32_t y, uint32_t w, uint32_t h);
} DisplayChangeListenerOps;
struct DisplayChangeListener {
uint64_t update_interval;
const DisplayChangeListenerOps *ops;
DisplayState *ds;
QemuConsole *con;
QLIST_ENTRY(DisplayChangeListener) next;
};
typedef struct DisplayGLCtxOps {
bool (*dpy_gl_ctx_is_compatible_dcl)(DisplayGLCtx *dgc,
DisplayChangeListener *dcl);
QEMUGLContext (*dpy_gl_ctx_create)(DisplayGLCtx *dgc,
QEMUGLParams *params);
void (*dpy_gl_ctx_destroy)(DisplayGLCtx *dgc,
QEMUGLContext ctx);
int (*dpy_gl_ctx_make_current)(DisplayGLCtx *dgc,
QEMUGLContext ctx);
void (*dpy_gl_ctx_create_texture)(DisplayGLCtx *dgc,
DisplaySurface *surface);
void (*dpy_gl_ctx_destroy_texture)(DisplayGLCtx *dgc,
DisplaySurface *surface);
void (*dpy_gl_ctx_update_texture)(DisplayGLCtx *dgc,
DisplaySurface *surface,
int x, int y, int w, int h);
} DisplayGLCtxOps;
struct DisplayGLCtx {
const DisplayGLCtxOps *ops;
#ifdef CONFIG_OPENGL
QemuGLShader *gls; /* optional shared shader */
#endif
};
DisplayState *init_displaystate(void);
void register_displaychangelistener(DisplayChangeListener *dcl);
void update_displaychangelistener(DisplayChangeListener *dcl,
uint64_t interval);
void unregister_displaychangelistener(DisplayChangeListener *dcl);
bool dpy_ui_info_supported(const QemuConsole *con);
const QemuUIInfo *dpy_get_ui_info(const QemuConsole *con);
int dpy_set_ui_info(QemuConsole *con, QemuUIInfo *info, bool delay);
void dpy_gfx_update(QemuConsole *con, int x, int y, int w, int h);
void dpy_gfx_update_full(QemuConsole *con);
void dpy_gfx_replace_surface(QemuConsole *con,
DisplaySurface *surface);
void dpy_text_cursor(QemuConsole *con, int x, int y);
void dpy_text_update(QemuConsole *con, int x, int y, int w, int h);
void dpy_text_resize(QemuConsole *con, int w, int h);
void dpy_mouse_set(QemuConsole *con, int x, int y, bool on);
void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor);
bool dpy_gfx_check_format(QemuConsole *con,
pixman_format_code_t format);
void dpy_gl_scanout_disable(QemuConsole *con);
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 w, uint32_t h,
void *d3d_tex2d);
void dpy_gl_scanout_dmabuf(QemuConsole *con,
QemuDmaBuf *dmabuf);
void dpy_gl_cursor_dmabuf(QemuConsole *con, QemuDmaBuf *dmabuf,
bool have_hot, uint32_t hot_x, uint32_t hot_y);
void dpy_gl_cursor_position(QemuConsole *con,
uint32_t pos_x, uint32_t pos_y);
void dpy_gl_release_dmabuf(QemuConsole *con,
QemuDmaBuf *dmabuf);
void dpy_gl_update(QemuConsole *con,
uint32_t x, uint32_t y, uint32_t w, uint32_t h);
QEMUGLContext dpy_gl_ctx_create(QemuConsole *con,
QEMUGLParams *params);
void dpy_gl_ctx_destroy(QemuConsole *con, QEMUGLContext ctx);
int dpy_gl_ctx_make_current(QemuConsole *con, QEMUGLContext ctx);
bool console_has_gl(QemuConsole *con);
typedef uint32_t console_ch_t;
static inline void console_write_ch(console_ch_t *dest, uint32_t ch)
{
*dest = ch;
}
enum {
GRAPHIC_FLAGS_NONE = 0,
/* require a console/display with GL callbacks */
GRAPHIC_FLAGS_GL = 1 << 0,
/* require a console/display with DMABUF import */
GRAPHIC_FLAGS_DMABUF = 1 << 1,
};
typedef struct GraphicHwOps {
int (*get_flags)(void *opaque); /* optional, default 0 */
void (*invalidate)(void *opaque);
void (*gfx_update)(void *opaque);
bool gfx_update_async; /* if true, calls graphic_hw_update_done() */
void (*text_update)(void *opaque, console_ch_t *text);
void (*ui_info)(void *opaque, uint32_t head, QemuUIInfo *info);
void (*gl_block)(void *opaque, bool block);
} GraphicHwOps;
QemuConsole *graphic_console_init(DeviceState *dev, uint32_t head,
const GraphicHwOps *ops,
void *opaque);
void graphic_console_set_hwops(QemuConsole *con,
const GraphicHwOps *hw_ops,
void *opaque);
void graphic_console_close(QemuConsole *con);
void graphic_hw_update(QemuConsole *con);
void graphic_hw_update_done(QemuConsole *con);
void graphic_hw_invalidate(QemuConsole *con);
void graphic_hw_text_update(QemuConsole *con, console_ch_t *chardata);
void graphic_hw_gl_block(QemuConsole *con, bool block);
void qemu_console_early_init(void);
void qemu_console_set_display_gl_ctx(QemuConsole *con, DisplayGLCtx *ctx);
QemuConsole *qemu_console_lookup_default(void);
QemuConsole *qemu_console_lookup_by_index(unsigned int index);
QemuConsole *qemu_console_lookup_by_device(DeviceState *dev, uint32_t head);
QemuConsole *qemu_console_lookup_by_device_name(const char *device_id,
uint32_t head, Error **errp);
QEMUCursor *qemu_console_get_cursor(QemuConsole *con);
bool qemu_console_is_visible(QemuConsole *con);
bool qemu_console_is_graphic(QemuConsole *con);
bool qemu_console_is_fixedsize(QemuConsole *con);
bool qemu_console_is_gl_blocked(QemuConsole *con);
char *qemu_console_get_label(QemuConsole *con);
int qemu_console_get_index(QemuConsole *con);
uint32_t qemu_console_get_head(QemuConsole *con);
int qemu_console_get_width(QemuConsole *con, int fallback);
int qemu_console_get_height(QemuConsole *con, int fallback);
/* Return the low-level window id for the console */
int qemu_console_get_window_id(QemuConsole *con);
/* Set the low-level window id for the console */
void qemu_console_set_window_id(QemuConsole *con, int window_id);
void qemu_console_resize(QemuConsole *con, int width, int height);
DisplaySurface *qemu_console_surface(QemuConsole *con);
void coroutine_fn qemu_console_co_wait_update(QemuConsole *con);
int qemu_invalidate_text_consoles(void);
/* console-gl.c */
#ifdef CONFIG_OPENGL
bool console_gl_check_format(DisplayChangeListener *dcl,
pixman_format_code_t format);
void surface_gl_create_texture(QemuGLShader *gls,
DisplaySurface *surface);
void surface_gl_update_texture(QemuGLShader *gls,
DisplaySurface *surface,
int x, int y, int w, int h);
void surface_gl_render_texture(QemuGLShader *gls,
DisplaySurface *surface);
void surface_gl_destroy_texture(QemuGLShader *gls,
DisplaySurface *surface);
void surface_gl_setup_viewport(QemuGLShader *gls,
DisplaySurface *surface,
int ww, int wh);
#endif
typedef struct QemuDisplay QemuDisplay;
struct QemuDisplay {
DisplayType type;
void (*early_init)(DisplayOptions *opts);
void (*init)(DisplayState *ds, DisplayOptions *opts);
const char *vc;
};
void qemu_display_register(QemuDisplay *ui);
bool qemu_display_find_default(DisplayOptions *opts);
void qemu_display_early_init(DisplayOptions *opts);
void qemu_display_init(DisplayState *ds, DisplayOptions *opts);
const char *qemu_display_get_vc(DisplayOptions *opts);
void qemu_display_help(void);
/* vnc.c */
void vnc_display_init(const char *id, Error **errp);
void vnc_display_open(const char *id, Error **errp);
void vnc_display_add_client(const char *id, int csock, bool skipauth);
int vnc_display_password(const char *id, const char *password);
int vnc_display_pw_expire(const char *id, time_t expires);
void vnc_parse(const char *str);
int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp);
bool vnc_display_reload_certs(const char *id, Error **errp);
bool vnc_display_update(DisplayUpdateOptionsVNC *arg, Error **errp);
/* input.c */
int index_from_key(const char *key, size_t key_length);
#ifdef CONFIG_LINUX
/* udmabuf.c */
int udmabuf_fd(void);
#endif
/* util.c */
bool qemu_console_fill_device_address(QemuConsole *con,
char *device_address,
size_t size,
Error **errp);
#endif
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