diff options
| author | Jindřich Makovička <makovick@gmail.com> | 2016-01-12 20:18:24 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2016-02-02 14:05:07 +0100 |
| commit | 56bdd4b69aa10bec274b1e812685bcf44dcb0c72 (patch) | |
| tree | fe0f5c5d53d3e1c126a9f830bf68a60396614e8c /ui/sdl2.c | |
| parent | 919e11f3735c524e23d049512d3306ea1cc63fba (diff) | |
| download | qemu-56bdd4b69aa10bec274b1e812685bcf44dcb0c72.tar.gz qemu-56bdd4b69aa10bec274b1e812685bcf44dcb0c72.tar.bz2 qemu-56bdd4b69aa10bec274b1e812685bcf44dcb0c72.zip | |
sdl: shorten the GUI refresh interval when mouse or keyboard is active
Signed-off-by: Jindřich Makovička <makovick@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'ui/sdl2.c')
| -rw-r--r-- | ui/sdl2.c | 23 |
1 files changed, 23 insertions, 0 deletions
@@ -49,6 +49,10 @@ static int guest_x, guest_y; static SDL_Cursor *guest_sprite; static Notifier mouse_mode_notifier; +#define SDL2_REFRESH_INTERVAL_BUSY 10 +#define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \ + / SDL2_REFRESH_INTERVAL_BUSY + 1) + static void sdl_update_caption(struct sdl2_console *scon); static struct sdl2_console *get_scon_from_window(uint32_t window_id) @@ -578,6 +582,7 @@ static void handle_windowevent(SDL_Event *ev) void sdl2_poll_events(struct sdl2_console *scon) { SDL_Event ev1, *ev = &ev1; + int idle = 1; if (scon->last_vm_running != runstate_is_running()) { scon->last_vm_running = runstate_is_running(); @@ -587,12 +592,15 @@ void sdl2_poll_events(struct sdl2_console *scon) while (SDL_PollEvent(ev)) { switch (ev->type) { case SDL_KEYDOWN: + idle = 0; handle_keydown(ev); break; case SDL_KEYUP: + idle = 0; handle_keyup(ev); break; case SDL_TEXTINPUT: + idle = 0; handle_textinput(ev); break; case SDL_QUIT: @@ -602,13 +610,16 @@ void sdl2_poll_events(struct sdl2_console *scon) } break; case SDL_MOUSEMOTION: + idle = 0; handle_mousemotion(ev); break; case SDL_MOUSEBUTTONDOWN: case SDL_MOUSEBUTTONUP: + idle = 0; handle_mousebutton(ev); break; case SDL_MOUSEWHEEL: + idle = 0; handle_mousewheel(ev); break; case SDL_WINDOWEVENT: @@ -618,6 +629,18 @@ void sdl2_poll_events(struct sdl2_console *scon) break; } } + + if (idle) { + if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { + scon->idle_counter++; + if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { + scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; + } + } + } else { + scon->idle_counter = 0; + scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; + } } static void sdl_mouse_warp(DisplayChangeListener *dcl, |