diff options
Diffstat (limited to 'ui/sdl2.c')
| -rw-r--r-- | ui/sdl2.c | 829 |
1 files changed, 829 insertions, 0 deletions
diff --git a/ui/sdl2.c b/ui/sdl2.c new file mode 100644 index 0000000000..f1532e9d2c --- /dev/null +++ b/ui/sdl2.c @@ -0,0 +1,829 @@ +/* + * 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. + */ +/* Ported SDL 1.2 code to 2.0 by Dave Airlie. */ + +/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */ +#undef WIN32_LEAN_AND_MEAN + +#include <SDL.h> + +#if SDL_MAJOR_VERSION == 2 +#include <SDL_syswm.h> + +#include "qemu-common.h" +#include "ui/console.h" +#include "ui/input.h" +#include "sysemu/sysemu.h" +#include "sdl_zoom.h" + +#include "sdl2-keymap.h" + +static int sdl2_num_outputs; +static struct sdl2_state { + DisplayChangeListener dcl; + DisplaySurface *surface; + SDL_Texture *texture; + SDL_Window *real_window; + SDL_Renderer *real_renderer; + int idx; + int last_vm_running; /* per console for caption reasons */ + int x, y; +} *sdl2_console; + +static SDL_Surface *guest_sprite_surface; +static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ + +static bool gui_saved_scaling; +static int gui_saved_width; +static int gui_saved_height; +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_grab_code = KMOD_LALT | KMOD_LCTRL; +static uint8_t modifiers_state[SDL_NUM_SCANCODES]; +static SDL_Cursor *sdl_cursor_normal; +static SDL_Cursor *sdl_cursor_hidden; +static int absolute_enabled; +static int guest_cursor; +static int guest_x, guest_y; +static SDL_Cursor *guest_sprite; +static int scaling_active; +static Notifier mouse_mode_notifier; + +static void sdl_update_caption(struct sdl2_state *scon); + +static struct sdl2_state *get_scon_from_window(uint32_t window_id) +{ + int i; + for (i = 0; i < sdl2_num_outputs; i++) { + if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { + return &sdl2_console[i]; + } + } + return NULL; +} + +static void sdl_update(DisplayChangeListener *dcl, + int x, int y, int w, int h) +{ + struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl); + SDL_Rect rect; + DisplaySurface *surf = qemu_console_surface(dcl->con); + + if (!surf) { + return; + } + if (!scon->texture) { + return; + } + + rect.x = x; + rect.y = y; + rect.w = w; + rect.h = h; + + SDL_UpdateTexture(scon->texture, NULL, surface_data(surf), + surface_stride(surf)); + SDL_RenderCopy(scon->real_renderer, scon->texture, &rect, &rect); + SDL_RenderPresent(scon->real_renderer); +} + +static void do_sdl_resize(struct sdl2_state *scon, int width, int height, + int bpp) +{ + int flags; + + if (scon->real_window && scon->real_renderer) { + if (width && height) { + SDL_RenderSetLogicalSize(scon->real_renderer, width, height); + SDL_SetWindowSize(scon->real_window, width, height); + } else { + SDL_DestroyRenderer(scon->real_renderer); + SDL_DestroyWindow(scon->real_window); + scon->real_renderer = NULL; + scon->real_window = NULL; + } + } else { + if (!width || !height) { + return; + } + flags = 0; + if (gui_fullscreen) { + flags |= SDL_WINDOW_FULLSCREEN; + } else { + flags |= SDL_WINDOW_RESIZABLE; + } + + scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, + SDL_WINDOWPOS_UNDEFINED, + width, height, flags); + scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); + sdl_update_caption(scon); + } +} + +static void sdl_switch(DisplayChangeListener *dcl, + DisplaySurface *new_surface) +{ + struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl); + int format = 0; + int idx = scon->idx; + DisplaySurface *old_surface = scon->surface; + + /* temporary hack: allows to call sdl_switch to handle scaling changes */ + if (new_surface) { + scon->surface = new_surface; + } + + if (!new_surface && idx > 0) { + scon->surface = NULL; + } + + if (new_surface == NULL) { + do_sdl_resize(scon, 0, 0, 0); + } else { + do_sdl_resize(scon, surface_width(scon->surface), + surface_height(scon->surface), 0); + } + + if (old_surface && scon->texture) { + SDL_DestroyTexture(scon->texture); + scon->texture = NULL; + } + + if (new_surface) { + if (!scon->texture) { + if (surface_bits_per_pixel(scon->surface) == 16) { + format = SDL_PIXELFORMAT_RGB565; + } else if (surface_bits_per_pixel(scon->surface) == 32) { + format = SDL_PIXELFORMAT_ARGB8888; + } + + scon->texture = SDL_CreateTexture(scon->real_renderer, format, + SDL_TEXTUREACCESS_STREAMING, + surface_width(new_surface), + surface_height(new_surface)); + } + } +} + +static void reset_keys(void) +{ + int i; + + for (i = 0; i < 256; i++) { + if (modifiers_state[i]) { + int qcode = sdl2_scancode_to_qcode[i]; + qemu_input_event_send_key_qcode(NULL, qcode, false); + modifiers_state[i] = 0; + } + } +} + +static void sdl_process_key(SDL_KeyboardEvent *ev) +{ + int qcode = sdl2_scancode_to_qcode[ev->keysym.scancode]; + + switch (ev->keysym.scancode) { +#if 0 + case SDL_SCANCODE_NUMLOCKCLEAR: + case SDL_SCANCODE_CAPSLOCK: + /* SDL does not send the key up event, so we generate it */ + qemu_input_event_send_key_qcode(NULL, qcode, true); + qemu_input_event_send_key_qcode(NULL, qcode, false); + return; +#endif + case SDL_SCANCODE_LCTRL: + case SDL_SCANCODE_LSHIFT: + case SDL_SCANCODE_LALT: + case SDL_SCANCODE_LGUI: + case SDL_SCANCODE_RCTRL: + case SDL_SCANCODE_RSHIFT: + case SDL_SCANCODE_RALT: + case SDL_SCANCODE_RGUI: + if (ev->type == SDL_KEYUP) { + modifiers_state[ev->keysym.scancode] = 0; + } else { + modifiers_state[ev->keysym.scancode] = 1; + } + /* fall though */ + default: + qemu_input_event_send_key_qcode(NULL, qcode, + ev->type == SDL_KEYDOWN); + } +} + +static void sdl_update_caption(struct sdl2_state *scon) +{ + char win_title[1024]; + char icon_title[1024]; + const char *status = ""; + + if (!runstate_is_running()) { + status = " [Stopped]"; + } else if (gui_grab) { + if (alt_grab) { + status = " - Press Ctrl-Alt-Shift to exit mouse grab"; + } else if (ctrl_grab) { + status = " - Press Right-Ctrl to exit mouse grab"; + } else { + status = " - Press Ctrl-Alt to exit mouse grab"; + } + } + + if (qemu_name) { + snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, + scon->idx, status); + snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); + } else { + snprintf(win_title, sizeof(win_title), "QEMU%s", status); + snprintf(icon_title, sizeof(icon_title), "QEMU"); + } + + if (scon->real_window) { + SDL_SetWindowTitle(scon->real_window, win_title); + } +} + +static void sdl_hide_cursor(void) +{ + if (!cursor_hide) { + return; + } + + if (qemu_input_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 (!qemu_input_is_absolute()) { + SDL_ShowCursor(1); + if (guest_cursor && + (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { + SDL_SetCursor(guest_sprite); + } else { + SDL_SetCursor(sdl_cursor_normal); + } + } +} + +static void sdl_grab_start(struct sdl2_state *scon) +{ + /* + * If the application is not active, do not try to enter grab state. This + * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the + * application (SDL bug). + */ + if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { + return; + } + if (guest_cursor) { + SDL_SetCursor(guest_sprite); + if (!qemu_input_is_absolute() && !absolute_enabled) { + SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); + } + } else { + sdl_hide_cursor(); + } + SDL_SetWindowGrab(scon->real_window, SDL_TRUE); + gui_grab = 1; + sdl_update_caption(scon); +} + +static void sdl_grab_end(struct sdl2_state *scon) +{ + SDL_SetWindowGrab(scon->real_window, SDL_FALSE); + gui_grab = 0; + sdl_show_cursor(); + sdl_update_caption(scon); +} + +static void absolute_mouse_grab(struct sdl2_state *scon) +{ + int mouse_x, mouse_y; + int scr_w, scr_h; + SDL_GetMouseState(&mouse_x, &mouse_y); + SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); + if (mouse_x > 0 && mouse_x < scr_w - 1 && + mouse_y > 0 && mouse_y < scr_h - 1) { + sdl_grab_start(scon); + } +} + +static void sdl_mouse_mode_change(Notifier *notify, void *data) +{ + if (qemu_input_is_absolute()) { + if (!absolute_enabled) { + absolute_enabled = 1; + absolute_mouse_grab(&sdl2_console[0]); + } + } else if (absolute_enabled) { + if (!gui_fullscreen) { + sdl_grab_end(&sdl2_console[0]); + } + absolute_enabled = 0; + } +} + +static void sdl_send_mouse_event(struct sdl2_state *scon, int dx, int dy, + int dz, int x, int y, int state) +{ + static uint32_t bmap[INPUT_BUTTON_MAX] = { + [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), + [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), + [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), +#if 0 + [INPUT_BUTTON_WHEEL_UP] = SDL_BUTTON(SDL_BUTTON_WHEELUP), + [INPUT_BUTTON_WHEEL_DOWN] = SDL_BUTTON(SDL_BUTTON_WHEELDOWN), +#endif + }; + static uint32_t prev_state; + + if (prev_state != state) { + qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); + prev_state = state; + } + + if (qemu_input_is_absolute()) { + int scr_w, scr_h; + int max_w = 0, max_h = 0; + int off_x = 0, off_y = 0; + int cur_off_x = 0, cur_off_y = 0; + int i; + + for (i = 0; i < sdl2_num_outputs; i++) { + struct sdl2_state *thiscon = &sdl2_console[i]; + if (thiscon->real_window && thiscon->surface) { + SDL_GetWindowSize(thiscon->real_window, &scr_w, &scr_h); + cur_off_x = thiscon->x; + cur_off_y = thiscon->y; + if (scr_w + cur_off_x > max_w) { + max_w = scr_w + cur_off_x; + } + if (scr_h + cur_off_y > max_h) { + max_h = scr_h + cur_off_y; + } + if (i == scon->idx) { + off_x = cur_off_x; + off_y = cur_off_y; + } + } + } + qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, off_x + x, max_w); + qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, off_y + y, max_h); + } else if (guest_cursor) { + x -= guest_x; + y -= guest_y; + guest_x += x; + guest_y += y; + qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, x); + qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, y); + } + qemu_input_event_sync(); +} + +static void sdl_scale(struct sdl2_state *scon, int width, int height) +{ + int bpp = 0; + do_sdl_resize(scon, width, height, bpp); + scaling_active = 1; +} + +static void toggle_full_screen(struct sdl2_state *scon) +{ + int width = surface_width(scon->surface); + int height = surface_height(scon->surface); + int bpp = surface_bits_per_pixel(scon->surface); + + gui_fullscreen = !gui_fullscreen; + if (gui_fullscreen) { + SDL_GetWindowSize(scon->real_window, + &gui_saved_width, &gui_saved_height); + gui_saved_scaling = scaling_active; + + do_sdl_resize(scon, width, height, bpp); + scaling_active = 0; + + gui_saved_grab = gui_grab; + sdl_grab_start(scon); + } else { + if (gui_saved_scaling) { + sdl_scale(scon, gui_saved_width, gui_saved_height); + } else { + do_sdl_resize(scon, width, height, 0); + } + if (!gui_saved_grab) { + sdl_grab_end(scon); + } + } + graphic_hw_invalidate(scon->dcl.con); + graphic_hw_update(scon->dcl.con); +} + +static void handle_keydown(SDL_Event *ev) +{ + int mod_state; + struct sdl2_state *scon = get_scon_from_window(ev->key.windowID); + + if (alt_grab) { + mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == + (gui_grab_code | KMOD_LSHIFT); + } else if (ctrl_grab) { + mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL; + } else { + mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; + } + gui_key_modifier_pressed = mod_state; + + if (gui_key_modifier_pressed) { + switch (ev->key.keysym.scancode) { + case SDL_SCANCODE_F: + toggle_full_screen(scon); + gui_keysym = 1; + break; + case SDL_SCANCODE_U: + if (scaling_active) { + scaling_active = 0; + sdl_switch(&scon->dcl, NULL); + graphic_hw_invalidate(scon->dcl.con); + graphic_hw_update(scon->dcl.con); + } + gui_keysym = 1; + break; + case SDL_SCANCODE_KP_PLUS: + case SDL_SCANCODE_KP_MINUS: + if (!gui_fullscreen) { + int scr_w, scr_h; + int width, height; + SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); + + width = MAX(scr_w + (ev->key.keysym.scancode == + SDL_SCANCODE_KP_PLUS ? 50 : -50), + 160); + height = (surface_height(scon->surface) * width) / + surface_width(scon->surface); + + sdl_scale(scon, width, height); + graphic_hw_invalidate(NULL); + graphic_hw_update(NULL); + gui_keysym = 1; + } + default: + break; + } + } + if (!gui_keysym) { + sdl_process_key(&ev->key); + } +} + +static void handle_keyup(SDL_Event *ev) +{ + int mod_state; + struct sdl2_state *scon = get_scon_from_window(ev->key.windowID); + + 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 && gui_key_modifier_pressed) { + gui_key_modifier_pressed = 0; + if (gui_keysym == 0) { + /* exit/enter grab if pressing Ctrl-Alt */ + if (!gui_grab) { + sdl_grab_start(scon); + } else if (!gui_fullscreen) { + sdl_grab_end(scon); + } + /* SDL does not send back all the modifiers key, so we must + * correct it. */ + reset_keys(); + return; + } + gui_keysym = 0; + } + if (!gui_keysym) { + sdl_process_key(&ev->key); + } +} + +static void handle_mousemotion(SDL_Event *ev) +{ + int max_x, max_y; + struct sdl2_state *scon = get_scon_from_window(ev->key.windowID); + + if (qemu_input_is_absolute() || absolute_enabled) { + int scr_w, scr_h; + SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); + max_x = scr_w - 1; + max_y = scr_h - 1; + if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 || + ev->motion.x == max_x || ev->motion.y == max_y)) { + sdl_grab_end(scon); + } + if (!gui_grab && + (ev->motion.x > 0 && ev->motion.x < max_x && + ev->motion.y > 0 && ev->motion.y < max_y)) { + sdl_grab_start(scon); + } + } + if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { + sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 0, + ev->motion.x, ev->motion.y, ev->motion.state); + } +} + +static void handle_mousebutton(SDL_Event *ev) +{ + int buttonstate = SDL_GetMouseState(NULL, NULL); + SDL_MouseButtonEvent *bev; + struct sdl2_state *scon = get_scon_from_window(ev->key.windowID); + int dz; + + bev = &ev->button; + if (!gui_grab && !qemu_input_is_absolute()) { + if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { + /* start grabbing all events */ + sdl_grab_start(scon); + } + } else { + dz = 0; + if (ev->type == SDL_MOUSEBUTTONDOWN) { + buttonstate |= SDL_BUTTON(bev->button); + } else { + buttonstate &= ~SDL_BUTTON(bev->button); + } +#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(scon, 0, 0, dz, bev->x, bev->y, buttonstate); + } +} + +static void handle_windowevent(DisplayChangeListener *dcl, SDL_Event *ev) +{ + int w, h; + struct sdl2_state *scon = get_scon_from_window(ev->key.windowID); + + switch (ev->window.event) { + case SDL_WINDOWEVENT_RESIZED: + sdl_scale(scon, ev->window.data1, ev->window.data2); + graphic_hw_invalidate(scon->dcl.con); + graphic_hw_update(scon->dcl.con); + break; + case SDL_WINDOWEVENT_EXPOSED: + SDL_GetWindowSize(SDL_GetWindowFromID(ev->window.windowID), &w, &h); + sdl_update(dcl, 0, 0, w, h); + break; + case SDL_WINDOWEVENT_FOCUS_GAINED: + case SDL_WINDOWEVENT_ENTER: + if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { + absolute_mouse_grab(scon); + } + break; + case SDL_WINDOWEVENT_FOCUS_LOST: + if (gui_grab && !gui_fullscreen) { + sdl_grab_end(scon); + } + break; + case SDL_WINDOWEVENT_RESTORED: + update_displaychangelistener(dcl, GUI_REFRESH_INTERVAL_DEFAULT); + break; + case SDL_WINDOWEVENT_MINIMIZED: + update_displaychangelistener(dcl, 500); + break; + case SDL_WINDOWEVENT_CLOSE: + if (!no_quit) { + no_shutdown = 0; + qemu_system_shutdown_request(); + } + break; + } +} + +static void sdl_refresh(DisplayChangeListener *dcl) +{ + struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl); + SDL_Event ev1, *ev = &ev1; + + if (scon->last_vm_running != runstate_is_running()) { + scon->last_vm_running = runstate_is_running(); + sdl_update_caption(scon); + } + + graphic_hw_update(dcl->con); + + while (SDL_PollEvent(ev)) { + switch (ev->type) { + case SDL_KEYDOWN: + handle_keydown(ev); + break; + case SDL_KEYUP: + handle_keyup(ev); + break; + case SDL_QUIT: + if (!no_quit) { + no_shutdown = 0; + qemu_system_shutdown_request(); + } + break; + case SDL_MOUSEMOTION: + handle_mousemotion(ev); + break; + case SDL_MOUSEBUTTONDOWN: + case SDL_MOUSEBUTTONUP: + handle_mousebutton(ev); + break; + case SDL_WINDOWEVENT: + handle_windowevent(dcl, ev); + break; + default: + break; + } + } +} + +static void sdl_mouse_warp(DisplayChangeListener *dcl, + int x, int y, int on) +{ + struct sdl2_state *scon = container_of(dcl, struct sdl2_state, dcl); + if (on) { + if (!guest_cursor) { + sdl_show_cursor(); + } + if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { + SDL_SetCursor(guest_sprite); + if (!qemu_input_is_absolute() && !absolute_enabled) { + SDL_WarpMouseInWindow(scon->real_window, x, y); + } + } + } else if (gui_grab) { + sdl_hide_cursor(); + } + guest_cursor = on; + guest_x = x, guest_y = y; +} + +static void sdl_mouse_define(DisplayChangeListener *dcl, + QEMUCursor *c) +{ + + if (guest_sprite) { + SDL_FreeCursor(guest_sprite); + } + + if (guest_sprite_surface) { + SDL_FreeSurface(guest_sprite_surface); + } + + guest_sprite_surface = + SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, + 0xff0000, 0x00ff00, 0xff, 0xff000000); + + if (!guest_sprite_surface) { + fprintf(stderr, "Failed to make rgb surface from %p\n", c); + return; + } + guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, + c->hot_x, c->hot_y); + if (!guest_sprite) { + fprintf(stderr, "Failed to make color cursor from %p\n", c); + return; + } + if (guest_cursor && + (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { + SDL_SetCursor(guest_sprite); + } +} + +static void sdl_cleanup(void) +{ + if (guest_sprite) { + SDL_FreeCursor(guest_sprite); + } + SDL_QuitSubSystem(SDL_INIT_VIDEO); +} + +static const DisplayChangeListenerOps dcl_ops = { + .dpy_name = "sdl", + .dpy_gfx_update = sdl_update, + .dpy_gfx_switch = sdl_switch, + .dpy_refresh = sdl_refresh, + .dpy_mouse_set = sdl_mouse_warp, + .dpy_cursor_define = sdl_mouse_define, +}; + +void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) +{ + int flags; + uint8_t data = 0; + char *filename; + int i; + + if (no_frame) { + gui_noframe = 1; + } + +#ifdef __linux__ + /* on Linux, SDL may use fbcon|directfb|svgalib when run without + * accessible $DISPLAY to open X11 window. This is often the case + * when qemu is run using sudo. But in this case, and when actually + * run in X11 environment, SDL fights with X11 for the video card, + * making current display unavailable, often until reboot. + * So make x11 the default SDL video driver if this variable is unset. + * This is a bit hackish but saves us from bigger problem. + * Maybe it's a good idea to fix this in SDL instead. + */ + setenv("SDL_VIDEODRIVER", "x11", 0); +#endif + + flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; + if (SDL_Init(flags)) { + fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", + SDL_GetError()); + exit(1); + } + + for (i = 0;; i++) { + QemuConsole *con = qemu_console_lookup_by_index(i); + if (!con || !qemu_console_is_graphic(con)) { + break; + } + } + sdl2_num_outputs = i; + sdl2_console = g_new0(struct sdl2_state, sdl2_num_outputs); + for (i = 0; i < sdl2_num_outputs; i++) { + QemuConsole *con = qemu_console_lookup_by_index(i); + sdl2_console[i].dcl.ops = &dcl_ops; + sdl2_console[i].dcl.con = con; + register_displaychangelistener(&sdl2_console[i].dcl); + sdl2_console[i].idx = i; + } + + /* Load a 32x32x4 image. White pixels are transparent. */ + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); + if (filename) { + SDL_Surface *image = SDL_LoadBMP(filename); + if (image) { + uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); + SDL_SetColorKey(image, SDL_TRUE, colorkey); + SDL_SetWindowIcon(sdl2_console[0].real_window, image); + } + g_free(filename); + } + + if (full_screen) { + gui_fullscreen = 1; + sdl_grab_start(0); + } + + mouse_mode_notifier.notify = sdl_mouse_mode_change; + qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); + + gui_grab = 0; + + sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); + sdl_cursor_normal = SDL_GetCursor(); + + atexit(sdl_cleanup); +} +#endif |