/* * QEMU SDL display driver * * Copyright (c) 2003 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 "vl.h" #include <SDL.h> #ifndef _WIN32 #include <signal.h> #endif static SDL_Surface *screen; static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ static int last_vm_running; static int gui_saved_grab; static int gui_fullscreen; static int gui_noframe; static int gui_key_modifier_pressed; static int gui_keysym; static int gui_fullscreen_initial_grab; static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; static uint8_t modifiers_state[256]; static int width, height; static SDL_Cursor *sdl_cursor_normal; static SDL_Cursor *sdl_cursor_hidden; static int absolute_enabled = 0; static int guest_cursor = 0; static int guest_x, guest_y; static SDL_Cursor *guest_sprite = 0; static void sdl_update(DisplayState *ds, int x, int y, int w, int h) { // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h); SDL_UpdateRect(screen, x, y, w, h); } static void sdl_resize(DisplayState *ds, int w, int h) { int flags; // printf("resizing to %d %d\n", w, h); flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; if (gui_fullscreen) flags |= SDL_FULLSCREEN; if (gui_noframe) flags |= SDL_NOFRAME; width = w; height = h; again: screen = SDL_SetVideoMode(w, h, 0, flags); if (!screen) { fprintf(stderr, "Could not open SDL display\n"); exit(1); } if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) { flags &= ~SDL_HWSURFACE; goto again; } if (!screen->pixels) { fprintf(stderr, "Could not open SDL display\n"); exit(1); } ds->data = screen->pixels; ds->linesize = screen->pitch; ds->depth = screen->format->BitsPerPixel; if (screen->format->Bshift > screen->format->Rshift) { ds->bgr = 1; } else { ds->bgr = 0; } ds->width = w; ds->height = h; } /* generic keyboard conversion */ #include "sdl_keysym.h" #include "keymaps.c" static kbd_layout_t *kbd_layout = NULL; static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev) { int keysym; /* workaround for X11+SDL bug with AltGR */ keysym = ev->keysym.sym; if (keysym == 0 && ev->keysym.scancode == 113) keysym = SDLK_MODE; /* For Japanese key '\' and '|' */ if (keysym == 92 && ev->keysym.scancode == 133) { keysym = 0xa5; } return keysym2scancode(kbd_layout, keysym); } /* specific keyboard conversions from scan codes */ #if defined(_WIN32) static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev) { return ev->keysym.scancode; } #else static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev) { int keycode; keycode = ev->keysym.scancode; if (keycode < 9) { keycode = 0; } else if (keycode < 97) { keycode -= 8; /* just an offset */ } else if (keycode < 212) { /* use conversion table */ keycode = _translate_keycode(keycode - 97); } else { keycode = 0; } return keycode; } #endif static void reset_keys(void) { int i; for(i = 0; i < 256; i++) { if (modifiers_state[i]) { if (i & 0x80) kbd_put_keycode(0xe0); kbd_put_keycode(i | 0x80); modifiers_state[i] = 0; } } } static void sdl_process_key(SDL_KeyboardEvent *ev) { int keycode, v; if (ev->keysym.sym == SDLK_PAUSE) { /* specific case */ v = 0; if (ev->type == SDL_KEYUP) v |= 0x80; kbd_put_keycode(0xe1); kbd_put_keycode(0x1d | v); kbd_put_keycode(0x45 | v); return; } if (kbd_layout) { keycode = sdl_keyevent_to_keycode_generic(ev); } else { keycode = sdl_keyevent_to_keycode(ev); } switch(keycode) { case 0x00: /* sent when leaving window: reset the modifiers state */ reset_keys(); return; case 0x2a: /* Left Shift */ case 0x36: /* Right Shift */ case 0x1d: /* Left CTRL */ case 0x9d: /* Right CTRL */ case 0x38: /* Left ALT */ case 0xb8: /* Right ALT */ if (ev->type == SDL_KEYUP) modifiers_state[keycode] = 0; else modifiers_state[keycode] = 1; break; case 0x45: /* num lock */ case 0x3a: /* caps lock */ /* SDL does not send the key up event, so we generate it */ kbd_put_keycode(keycode); kbd_put_keycode(keycode | 0x80); return; } /* now send the key code */ if (keycode & 0x80) kbd_put_keycode(0xe0); if (ev->type == SDL_KEYUP) kbd_put_keycode(keycode | 0x80); else kbd_put_keycode(keycode & 0x7f); } static void sdl_update_caption(void) { char buf[1024]; const char *status = ""; if (!vm_running) status = " [Stopped]"; else if (gui_grab) { if (!alt_grab) status = " - Press Ctrl-Alt to exit grab"; else status = " - Press Ctrl-Alt-Shift to exit grab"; } if (qemu_name) snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status); else snprintf(buf, sizeof(buf), "QEMU%s", status); SDL_WM_SetCaption(buf, "QEMU"); } static void sdl_hide_cursor(void) { if (!cursor_hide) return; if (kbd_mouse_is_absolute()) { SDL_ShowCursor(1); SDL_SetCursor(sdl_cursor_hidden); } else { SDL_ShowCursor(0); } } static void sdl_show_cursor(void) { if (!cursor_hide) return; if (!kbd_mouse_is_absolute()) { SDL_ShowCursor(1); if (guest_cursor && (gui_grab || kbd_mouse_is_absolute() || absolute_enabled)) SDL_SetCursor(guest_sprite); else SDL_SetCursor(sdl_cursor_normal); } } static void sdl_grab_start(void) { if (guest_cursor) { SDL_SetCursor(guest_sprite); SDL_WarpMouse(guest_x, guest_y); } else sdl_hide_cursor(); SDL_WM_GrabInput(SDL_GRAB_ON); /* dummy read to avoid moving the mouse */ SDL_GetRelativeMouseState(NULL, NULL); gui_grab = 1; sdl_update_caption(); } static void sdl_grab_end(void) { SDL_WM_GrabInput(SDL_GRAB_OFF); gui_grab = 0; sdl_show_cursor(); sdl_update_caption(); } static void sdl_send_mouse_event(int dz) { int dx, dy, state, buttons; state = SDL_GetRelativeMouseState(&dx, &dy); buttons = 0; if (state & SDL_BUTTON(SDL_BUTTON_LEFT)) buttons |= MOUSE_EVENT_LBUTTON; if (state & SDL_BUTTON(SDL_BUTTON_RIGHT)) buttons |= MOUSE_EVENT_RBUTTON; if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE)) buttons |= MOUSE_EVENT_MBUTTON; if (kbd_mouse_is_absolute()) { if (!absolute_enabled) { sdl_hide_cursor(); if (gui_grab) { sdl_grab_end(); } absolute_enabled = 1; } SDL_GetMouseState(&dx, &dy); dx = dx * 0x7FFF / width; dy = dy * 0x7FFF / height; } else if (absolute_enabled) { sdl_show_cursor(); absolute_enabled = 0; } else if (guest_cursor) { SDL_GetMouseState(&dx, &dy); dx -= guest_x; dy -= guest_y; guest_x += dx; guest_y += dy; } kbd_mouse_event(dx, dy, dz, buttons); } static void toggle_full_screen(DisplayState *ds) { gui_fullscreen = !gui_fullscreen; sdl_resize(ds, screen->w, screen->h); if (gui_fullscreen) { gui_saved_grab = gui_grab; sdl_grab_start(); } else { if (!gui_saved_grab) sdl_grab_end(); } vga_hw_invalidate(); vga_hw_update(); } static void sdl_refresh(DisplayState *ds) { SDL_Event ev1, *ev = &ev1; int mod_state; if (last_vm_running != vm_running) { last_vm_running = vm_running; sdl_update_caption(); } vga_hw_update(); while (SDL_PollEvent(ev)) { switch (ev->type) { case SDL_VIDEOEXPOSE: sdl_update(ds, 0, 0, screen->w, screen->h); break; case SDL_KEYDOWN: case SDL_KEYUP: if (ev->type == SDL_KEYDOWN) { if (!alt_grab) { mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; } else { mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == (gui_grab_code | KMOD_LSHIFT); } gui_key_modifier_pressed = mod_state; if (gui_key_modifier_pressed) { int keycode; keycode = sdl_keyevent_to_keycode(&ev->key); switch(keycode) { case 0x21: /* 'f' key on US keyboard */ toggle_full_screen(ds); gui_keysym = 1; break; case 0x02 ... 0x0a: /* '1' to '9' keys */ /* Reset the modifiers sent to the current console */ reset_keys(); console_select(keycode - 0x02); if (!is_graphic_console()) { /* display grab if going to a text console */ if (gui_grab) sdl_grab_end(); } gui_keysym = 1; break; default: break; } } else if (!is_graphic_console()) { int keysym; keysym = 0; if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) { switch(ev->key.keysym.sym) { case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break; case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break; case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break; case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break; case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break; case SDLK_END: keysym = QEMU_KEY_CTRL_END; break; case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break; case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break; default: break; } } else { switch(ev->key.keysym.sym) { case SDLK_UP: keysym = QEMU_KEY_UP; break; case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break; case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break; case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break; case SDLK_HOME: keysym = QEMU_KEY_HOME; break; case SDLK_END: keysym = QEMU_KEY_END; break; case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break; case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break; case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break; default: break; } } if (keysym) { kbd_put_keysym(keysym); } else if (ev->key.keysym.unicode != 0) { kbd_put_keysym(ev->key.keysym.unicode); } } } else if (ev->type == SDL_KEYUP) { if (!alt_grab) { mod_state = (ev->key.keysym.mod & gui_grab_code); } else { mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); } if (!mod_state) { if (gui_key_modifier_pressed) { gui_key_modifier_pressed = 0; if (gui_keysym == 0) { /* exit/enter grab if pressing Ctrl-Alt */ if (!gui_grab) { /* if the application is not active, do not try to enter grab state. It prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the application (SDL bug). */ if (SDL_GetAppState() & SDL_APPACTIVE) sdl_grab_start(); } else { sdl_grab_end(); } /* SDL does not send back all the modifiers key, so we must correct it */ reset_keys(); break; } gui_keysym = 0; } } } if (is_graphic_console() && !gui_keysym) sdl_process_key(&ev->key); break; case SDL_QUIT: if (!no_quit) { qemu_system_shutdown_request(); vm_start(); /* In case we're paused */ } break; case SDL_MOUSEMOTION: if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) { sdl_send_mouse_event(0); } break; case SDL_MOUSEBUTTONDOWN: case SDL_MOUSEBUTTONUP: { SDL_MouseButtonEvent *bev = &ev->button; if (!gui_grab && !kbd_mouse_is_absolute()) { if (ev->type == SDL_MOUSEBUTTONDOWN && (bev->state & SDL_BUTTON_LMASK)) { /* start grabbing all events */ sdl_grab_start(); } } else { int dz; dz = 0; #ifdef SDL_BUTTON_WHEELUP if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) { dz = -1; } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) { dz = 1; } #endif sdl_send_mouse_event(dz); } } break; case SDL_ACTIVEEVENT: if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS && !ev->active.gain && !gui_fullscreen_initial_grab) { sdl_grab_end(); } break; default: break; } } } static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c) { SDL_Rect dst = { x, y, w, h }; SDL_FillRect(screen, &dst, c); } static void sdl_mouse_warp(int x, int y, int on) { if (on) { if (!guest_cursor) sdl_show_cursor(); if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) { SDL_SetCursor(guest_sprite); SDL_WarpMouse(x, y); } } else if (gui_grab) sdl_hide_cursor(); guest_cursor = on; guest_x = x, guest_y = y; } static void sdl_mouse_define(int width, int height, int bpp, int hot_x, int hot_y, uint8_t *image, uint8_t *mask) { uint8_t sprite[256], *line; int x, y, dst, bypl, src = 0; if (guest_sprite) SDL_FreeCursor(guest_sprite); memset(sprite, 0, 256); bypl = ((width * bpp + 31) >> 5) << 2; for (y = 0, dst = 0; y < height; y ++, image += bypl) { line = image; for (x = 0; x < width; x ++, dst ++) { switch (bpp) { case 24: src = *(line ++); src |= *(line ++); src |= *(line ++); break; case 16: case 15: src = *(line ++); src |= *(line ++); break; case 8: src = *(line ++); break; case 4: src = 0xf & (line[x >> 1] >> ((x & 1)) << 2); break; case 2: src = 3 & (line[x >> 2] >> ((x & 3)) << 1); break; case 1: src = 1 & (line[x >> 3] >> (x & 7)); break; } if (!src) sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3]; } } guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y); if (guest_cursor && (gui_grab || kbd_mouse_is_absolute() || absolute_enabled)) SDL_SetCursor(guest_sprite); } static void sdl_cleanup(void) { if (guest_sprite) SDL_FreeCursor(guest_sprite); SDL_Quit(); } void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) { int flags; uint8_t data = 0; #if defined(__APPLE__) /* always use generic keymaps */ if (!keyboard_layout) keyboard_layout = "en-us"; #endif if(keyboard_layout) { kbd_layout = init_keyboard_layout(keyboard_layout); if (!kbd_layout) exit(1); } if (no_frame) gui_noframe = 1; flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; if (SDL_Init (flags)) { fprintf(stderr, "Could not initialize SDL - exiting\n"); exit(1); } #ifndef _WIN32 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */ signal(SIGINT, SIG_DFL); signal(SIGQUIT, SIG_DFL); #endif ds->dpy_update = sdl_update; ds->dpy_resize = sdl_resize; ds->dpy_refresh = sdl_refresh; ds->dpy_fill = sdl_fill; ds->mouse_set = sdl_mouse_warp; ds->cursor_define = sdl_mouse_define; sdl_resize(ds, 640, 400); sdl_update_caption(); SDL_EnableKeyRepeat(250, 50); SDL_EnableUNICODE(1); gui_grab = 0; sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); sdl_cursor_normal = SDL_GetCursor(); atexit(sdl_cleanup); if (full_screen) { gui_fullscreen = 1; gui_fullscreen_initial_grab = 1; sdl_grab_start(); } }