/* * xemu SDL display driver * * Copyright (c) 2020 Matt Borgerson * * Based on sdl2.c, sdl2-gl.c * * 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. */ #include "qemu/osdep.h" #include "qemu/module.h" #include "qemu/thread.h" #include "qemu/main-loop.h" #include "qemu-version.h" #include "ui/console.h" #include "ui/input.h" #include "ui/xemu-display.h" #include "sysemu/runstate.h" #include "sysemu/sysemu.h" #include "xemu-hud.h" #include "xemu-input.h" #include "xemu-settings.h" #include "xemu-shaders.h" #include "hw/xbox/nv2a/gl/gloffscreen.h" // FIXME // #define DEBUG_XEMU_C #ifdef DEBUG_XEMU_C #define DPRINTF(...) fprintf(stderr, __VA_ARGS__) #else #define DPRINTF(...) #endif void xb_surface_gl_create_texture(DisplaySurface *surface); void xb_surface_gl_update_texture(DisplaySurface *surface, int x, int y, int w, int h); void xb_surface_gl_destroy_texture(DisplaySurface *surface); static void pre_swap(void); static void post_swap(void); static void sleep_ns(int64_t ns); static int sdl2_num_outputs; static struct sdl2_console *sdl2_console; static SDL_Surface *guest_sprite_surface; static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ static int gui_saved_grab; static int gui_fullscreen; static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 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 Notifier mouse_mode_notifier; static SDL_Window *m_window; static SDL_GLContext m_context; int scaling_mode = 1; struct decal_shader *blit; static QemuSemaphore display_init_sem; static void toggle_full_screen(struct sdl2_console *scon); int xemu_is_fullscreen(void) { return gui_fullscreen; } void xemu_toggle_fullscreen(void) { toggle_full_screen(&sdl2_console[0]); } #define SDL2_REFRESH_INTERVAL_BUSY 16 #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) { 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; } #if 0 void sdl2_window_create(struct sdl2_console *scon) { int flags = 0; if (!scon->surface) { return; } assert(!scon->real_window); if (gui_fullscreen) { flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; } else { flags |= SDL_WINDOW_RESIZABLE; } if (scon->hidden) { flags |= SDL_WINDOW_HIDDEN; } scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, surface_width(scon->surface), surface_height(scon->surface), flags); scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); if (scon->opengl) { scon->winctx = SDL_GL_GetCurrentContext(); } sdl_update_caption(scon); } void sdl2_window_destroy(struct sdl2_console *scon) { if (!scon->real_window) { return; } SDL_DestroyRenderer(scon->real_renderer); scon->real_renderer = NULL; SDL_DestroyWindow(scon->real_window); scon->real_window = NULL; } #endif void sdl2_window_resize(struct sdl2_console *scon) { if (!scon->real_window) { return; } SDL_SetWindowSize(scon->real_window, surface_width(scon->surface), surface_height(scon->surface)); } static void sdl2_redraw(struct sdl2_console *scon) { if (scon->opengl) { sdl2_gl_redraw(scon); } } static void sdl_update_caption(struct sdl2_console *scon) { #if 0 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-G to exit grab"; } else if (ctrl_grab) { status = " - Press Right-Ctrl-G to exit grab"; } else { status = " - Press Ctrl-Alt-G to exit 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); } #endif } static void sdl_hide_cursor(void) { if (!cursor_hide) { return; } SDL_ShowCursor(SDL_DISABLE); SDL_SetCursor(sdl_cursor_hidden); if (!qemu_input_is_absolute()) { SDL_SetRelativeMouseMode(SDL_TRUE); } } static void sdl_show_cursor(void) { if (!cursor_hide) { return; } if (!qemu_input_is_absolute()) { SDL_SetRelativeMouseMode(SDL_FALSE); } if (guest_cursor && (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { SDL_SetCursor(guest_sprite); } else { SDL_SetCursor(sdl_cursor_normal); } SDL_ShowCursor(SDL_ENABLE); } static void sdl_grab_start(struct sdl2_console *scon) { #if 0 QemuConsole *con = scon ? scon->dcl.con : NULL; if (!con || !qemu_console_is_graphic(con)) { return; } /* * 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); #endif } static void sdl_grab_end(struct sdl2_console *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_console *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; SDL_SetRelativeMouseMode(SDL_FALSE); 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_console *scon, int dx, int dy, 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), }; 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()) { qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, x, 0, surface_width(scon->surface)); qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, y, 0, surface_height(scon->surface)); } else { if (guest_cursor) { x -= guest_x; y -= guest_y; guest_x += x; guest_y += y; dx = x; dy = y; } qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); } qemu_input_event_sync(); } static void toggle_full_screen(struct sdl2_console *scon) { gui_fullscreen = !gui_fullscreen; if (gui_fullscreen) { SDL_SetWindowFullscreen(scon->real_window, SDL_WINDOW_FULLSCREEN_DESKTOP); gui_saved_grab = gui_grab; sdl_grab_start(scon); } else { if (!gui_saved_grab) { sdl_grab_end(scon); } SDL_SetWindowFullscreen(scon->real_window, 0); } // Note: If this gets called while rendering HUD, we will draw twice. Just // wait for next refresh. #if 0 sdl2_redraw(scon); #endif } static int get_mod_state(void) { SDL_Keymod mod = SDL_GetModState(); if (alt_grab) { return (mod & (gui_grab_code | KMOD_LSHIFT)) == (gui_grab_code | KMOD_LSHIFT); } else if (ctrl_grab) { return (mod & KMOD_RCTRL) == KMOD_RCTRL; } else { return (mod & gui_grab_code) == gui_grab_code; } } static void handle_keydown(SDL_Event *ev) { int win; struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); int gui_key_modifier_pressed = get_mod_state(); int gui_keysym = 0; if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { switch (ev->key.keysym.scancode) { case SDL_SCANCODE_2: case SDL_SCANCODE_3: case SDL_SCANCODE_4: case SDL_SCANCODE_5: case SDL_SCANCODE_6: case SDL_SCANCODE_7: case SDL_SCANCODE_8: case SDL_SCANCODE_9: if (gui_grab) { sdl_grab_end(scon); } win = ev->key.keysym.scancode - SDL_SCANCODE_1; if (win < sdl2_num_outputs) { sdl2_console[win].hidden = !sdl2_console[win].hidden; if (sdl2_console[win].real_window) { if (sdl2_console[win].hidden) { SDL_HideWindow(sdl2_console[win].real_window); } else { SDL_ShowWindow(sdl2_console[win].real_window); } } gui_keysym = 1; } break; case SDL_SCANCODE_F: toggle_full_screen(scon); gui_keysym = 1; break; case SDL_SCANCODE_G: gui_keysym = 1; if (!gui_grab) { sdl_grab_start(scon); } else if (!gui_fullscreen) { sdl_grab_end(scon); } break; case SDL_SCANCODE_U: sdl2_window_resize(scon); gui_keysym = 1; break; default: break; } } if (!gui_keysym) { sdl2_process_key(scon, &ev->key); } } static void handle_keyup(SDL_Event *ev) { struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); scon->ignore_hotkeys = false; sdl2_process_key(scon, &ev->key); } static void handle_textinput(SDL_Event *ev) { struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); QemuConsole *con = scon ? scon->dcl.con : NULL; if (qemu_console_is_graphic(con)) { return; } kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); } static void handle_mousemotion(SDL_Event *ev) { int max_x, max_y; struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { return; } 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 && !gui_fullscreen && (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, 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_console *scon = get_scon_from_window(ev->button.windowID); if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { return; } 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 { if (ev->type == SDL_MOUSEBUTTONDOWN) { buttonstate |= SDL_BUTTON(bev->button); } else { buttonstate &= ~SDL_BUTTON(bev->button); } sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); } } static void handle_mousewheel(SDL_Event *ev) { struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); SDL_MouseWheelEvent *wev = &ev->wheel; InputButton btn; if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { return; } if (wev->y > 0) { btn = INPUT_BUTTON_WHEEL_UP; } else if (wev->y < 0) { btn = INPUT_BUTTON_WHEEL_DOWN; } else { return; } qemu_input_queue_btn(scon->dcl.con, btn, true); qemu_input_event_sync(); qemu_input_queue_btn(scon->dcl.con, btn, false); qemu_input_event_sync(); } static void handle_windowevent(SDL_Event *ev) { struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); bool allow_close = true; if (!scon) { return; } switch (ev->window.event) { case SDL_WINDOWEVENT_RESIZED: { QemuUIInfo info; memset(&info, 0, sizeof(info)); info.width = ev->window.data1; info.height = ev->window.data2; dpy_set_ui_info(scon->dcl.con, &info); } sdl2_redraw(scon); break; case SDL_WINDOWEVENT_EXPOSED: sdl2_redraw(scon); break; case SDL_WINDOWEVENT_FOCUS_GAINED: case SDL_WINDOWEVENT_ENTER: if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { absolute_mouse_grab(scon); } /* If a new console window opened using a hotkey receives the * focus, SDL sends another KEYDOWN event to the new window, * closing the console window immediately after. * * Work around this by ignoring further hotkey events until a * key is released. */ scon->ignore_hotkeys = get_mod_state(); break; case SDL_WINDOWEVENT_FOCUS_LOST: if (gui_grab && !gui_fullscreen) { sdl_grab_end(scon); } break; case SDL_WINDOWEVENT_RESTORED: update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); break; case SDL_WINDOWEVENT_MINIMIZED: update_displaychangelistener(&scon->dcl, 500); break; case SDL_WINDOWEVENT_CLOSE: if (qemu_console_is_graphic(scon->dcl.con)) { if (scon->opts->has_window_close && !scon->opts->window_close) { allow_close = false; } if (allow_close) { no_shutdown = 0; qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); } } else { SDL_HideWindow(scon->real_window); scon->hidden = true; } break; case SDL_WINDOWEVENT_SHOWN: scon->hidden = false; break; case SDL_WINDOWEVENT_HIDDEN: scon->hidden = true; break; } } void sdl2_poll_events(struct sdl2_console *scon) { SDL_Event ev1, *ev = &ev1; bool allow_close = true; if (scon->last_vm_running != runstate_is_running()) { scon->last_vm_running = runstate_is_running(); sdl_update_caption(scon); } while (SDL_PollEvent(ev)) { int kbd = 0, mouse = 0; xemu_input_process_sdl_events(ev); xemu_hud_process_sdl_events(ev); xemu_input_update_controllers(); xemu_hud_should_capture_kbd_mouse(&kbd, &mouse); switch (ev->type) { case SDL_KEYDOWN: if (kbd) break; handle_keydown(ev); break; case SDL_KEYUP: if (kbd) break; handle_keyup(ev); break; case SDL_TEXTINPUT: if (kbd) break; handle_textinput(ev); break; case SDL_QUIT: if (scon->opts->has_window_close && !scon->opts->window_close) { allow_close = false; } if (allow_close) { no_shutdown = 0; qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); } break; case SDL_MOUSEMOTION: if (mouse) break; handle_mousemotion(ev); break; case SDL_MOUSEBUTTONDOWN: case SDL_MOUSEBUTTONUP: if (mouse) break; handle_mousebutton(ev); break; case SDL_MOUSEWHEEL: if (mouse) break; handle_mousewheel(ev); break; case SDL_WINDOWEVENT: handle_windowevent(ev); break; default: break; } } scon->idle_counter = 0; scon->dcl.update_interval = 16; // Ignored } static void sdl_mouse_warp(DisplayChangeListener *dcl, int x, int y, int on) { struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); if (!qemu_console_is_graphic(scon->dcl.con)) { return; } 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); } } #if 0 static void sdl_cleanup(void) { if (guest_sprite) { SDL_FreeCursor(guest_sprite); } SDL_QuitSubSystem(SDL_INIT_VIDEO); } #endif static const DisplayChangeListenerOps dcl_gl_ops = { .dpy_name = "sdl2-gl", .dpy_gfx_update = sdl2_gl_update, .dpy_gfx_switch = sdl2_gl_switch, .dpy_gfx_check_format = console_gl_check_format, // .dpy_refresh = sdl2_gl_refresh, .dpy_mouse_set = sdl_mouse_warp, .dpy_cursor_define = sdl_mouse_define, .dpy_gl_ctx_create = sdl2_gl_create_context, .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, .dpy_gl_update = sdl2_gl_scanout_flush, }; static void sdl2_display_very_early_init(DisplayOptions *o) { fprintf(stderr, "%s\n", __func__); #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 if (SDL_Init(SDL_INIT_VIDEO)) { fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", SDL_GetError()); exit(1); } #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); #endif SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); // Initialize rendering context SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8); SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8); SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8); SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8); SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24); SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3); SDL_GL_SetAttribute( SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); SDL_GL_SetSwapInterval(1); // Create main window m_window = SDL_CreateWindow( "xemu", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1024, 768, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI); if (m_window == NULL) { fprintf(stderr, "Failed to create main window\n"); SDL_Quit(); exit(1); } m_context = SDL_GL_CreateContext(m_window); assert(m_context != NULL); if (m_context == NULL) { fprintf(stderr, "%s: Failed to create GL context\n", __func__); SDL_DestroyWindow(m_window); SDL_Quit(); exit(1); } int width, height, channels = 0; stbi_set_flip_vertically_on_load(0); unsigned char *icon_data = stbi_load("./data/xemu_64x64.png", &width, &height, &channels, 4); if (icon_data) { SDL_Surface *icon = SDL_CreateRGBSurfaceFrom(icon_data, width, height, 32, width*4, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000); if (icon) { SDL_SetWindowIcon(m_window, icon); } // Note: Retaining the memory allocated by stbi_load. It's used in place // by the SDL surface. } // Initialize offscreen rendering context now glo_context_create(); SDL_GL_MakeCurrent(NULL, NULL); // FIXME: atexit(sdl_cleanup); } static void sdl2_display_early_init(DisplayOptions *o) { assert(o->type == DISPLAY_TYPE_XEMU); display_opengl = 1; SDL_GL_MakeCurrent(m_window, m_context); xemu_hud_init(m_window, m_context); blit = create_decal_shader(SHADER_TYPE_BLIT); } static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) { uint8_t data = 0; int i; SDL_SysWMinfo info; assert(o->type == DISPLAY_TYPE_XEMU); SDL_GL_MakeCurrent(m_window, m_context); xemu_input_init(); xemu_settings_get_enum(XEMU_SETTINGS_DISPLAY_SCALE, &scaling_mode); memset(&info, 0, sizeof(info)); SDL_VERSION(&info.version); gui_fullscreen = o->has_full_screen && o->full_screen; #if 1 // Explicitly set number of outputs to 1 for a single screen. We don't need // multiple for now, but maybe in the future debug stuff can go on a second // screen. sdl2_num_outputs = 1; #else for (i = 0;; i++) { QemuConsole *con = qemu_console_lookup_by_index(i); if (!con) { break; } } sdl2_num_outputs = i; if (sdl2_num_outputs == 0) { return; } #endif sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); for (i = 0; i < sdl2_num_outputs; i++) { QemuConsole *con = qemu_console_lookup_by_index(i); assert(con != NULL); if (!qemu_console_is_graphic(con) && qemu_console_get_index(con) != 0) { sdl2_console[i].hidden = true; } sdl2_console[i].idx = i; sdl2_console[i].opts = o; sdl2_console[i].opengl = 1; sdl2_console[i].dcl.ops = &dcl_gl_ops; sdl2_console[i].dcl.con = con; sdl2_console[i].kbd = qkbd_state_init(con); register_displaychangelistener(&sdl2_console[i].dcl); #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { #if defined(SDL_VIDEO_DRIVER_WINDOWS) qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); #elif defined(SDL_VIDEO_DRIVER_X11) qemu_console_set_window_id(con, info.info.x11.window); #endif } #endif } gui_grab = 0; if (gui_fullscreen) { sdl_grab_start(0); } mouse_mode_notifier.notify = sdl_mouse_mode_change; qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); sdl_cursor_normal = SDL_GetCursor(); /* Tell main thread to go ahead and create the app and enter the run loop */ SDL_GL_MakeCurrent(NULL, NULL); qemu_sem_post(&display_init_sem); } static QemuDisplay qemu_display_sdl2 = { .type = DISPLAY_TYPE_XEMU, .early_init = sdl2_display_early_init, .init = sdl2_display_init, }; static void register_sdl1(void) { qemu_display_register(&qemu_display_sdl2); } type_init(register_sdl1); void xb_surface_gl_create_texture(DisplaySurface *surface) { // assert(gls); assert(QEMU_IS_ALIGNED(surface_stride(surface), surface_bytes_per_pixel(surface))); switch (surface->format) { case PIXMAN_BE_b8g8r8x8: case PIXMAN_BE_b8g8r8a8: surface->glformat = GL_BGRA_EXT; surface->gltype = GL_UNSIGNED_BYTE; break; case PIXMAN_BE_x8r8g8b8: case PIXMAN_BE_a8r8g8b8: surface->glformat = GL_RGBA; surface->gltype = GL_UNSIGNED_BYTE; break; case PIXMAN_r5g6b5: surface->glformat = GL_RGB; surface->gltype = GL_UNSIGNED_SHORT_5_6_5; break; default: g_assert_not_reached(); } glGenTextures(1, &surface->texture); // glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, surface->texture); glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, surface_stride(surface) / surface_bytes_per_pixel(surface)); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, surface_width(surface), surface_height(surface), 0, surface->glformat, surface->gltype, surface_data(surface)); glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); } void xb_surface_gl_update_texture(DisplaySurface *surface, int x, int y, int w, int h) { uint8_t *data = (void *)surface_data(surface); if (surface->texture) { glBindTexture(GL_TEXTURE_2D, surface->texture); glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, surface_stride(surface) / surface_bytes_per_pixel(surface)); glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, w, h, surface->glformat, surface->gltype, data + surface_stride(surface) * y + surface_bytes_per_pixel(surface) * x); glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0); } } void xb_surface_gl_destroy_texture(DisplaySurface *surface) { if (!surface || !surface->texture) { return; } glDeleteTextures(1, &surface->texture); surface->texture = 0; } #if 0 static void sdl2_set_scanout_mode(struct sdl2_console *scon, bool scanout) { if (scon->scanout_mode == scanout) { return; } scon->scanout_mode = scanout; if (!scon->scanout_mode) { egl_fb_destroy(&scon->guest_fb); if (scon->surface) { surface_gl_destroy_texture(scon->surface); surface_gl_create_texture(scon->surface); } } } #endif static void xemu_sdl2_gl_render_surface(struct sdl2_console *scon) { int ww, wh; SDL_GL_MakeCurrent(scon->real_window, scon->winctx); // sdl2_set_scanout_mode(scon, false); SDL_GL_GetDrawableSize(scon->real_window, &ww, &wh); // Get texture dimensions int tw, th; glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, scon->surface->texture); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &tw); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &th); // Calculate scaling factors float scale[2]; if (scaling_mode == DISPLAY_SCALE_STRETCH) { // Stretch to fit scale[0] = 1.0; scale[1] = 1.0; } else if (scaling_mode == DISPLAY_SCALE_CENTER) { // Centered scale[0] = (float)tw/(float)ww; scale[1] = (float)th/(float)wh; } else { // Scale to fit float t_ratio = (float)tw/(float)th; float w_ratio = (float)ww/(float)wh; if (w_ratio >= t_ratio) { scale[0] = t_ratio/w_ratio; scale[1] = 1.0; } else { scale[0] = 1.0; scale[1] = w_ratio/t_ratio; } } struct decal_shader *s = blit; s->flip = 1; glViewport(0, 0, ww, wh); glUseProgram(s->prog); glBindVertexArray(s->vao); glUniform1i(s->FlipY_loc, s->flip); glUniform4f(s->ScaleOffset_loc, scale[0], scale[1], 0, 0); glUniform4f(s->TexScaleOffset_loc, 1.0, 1.0, 0, 0); glUniform1i(s->tex_loc, 0); glClearColor(0, 0, 0, 0); glClear(GL_COLOR_BUFFER_BIT); glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_INT, NULL); // FIXME: Finer locking qemu_mutex_lock_iothread(); xemu_hud_render(scon->real_window); qemu_mutex_unlock_iothread(); // xb_surface_gl_render_texture(scon->surface); pre_swap(); SDL_GL_SwapWindow(scon->real_window); post_swap(); } void sdl2_gl_update(DisplayChangeListener *dcl, int x, int y, int w, int h) { struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); assert(scon->opengl); #if 1 SDL_GL_MakeCurrent(scon->real_window, scon->winctx); if (scon->surface) { // glDeleteTextures(1, &scon->surface->texture); xb_surface_gl_destroy_texture(scon->surface); // assert(glGetError() == GL_NO_ERROR); } xb_surface_gl_create_texture(scon->surface); #endif scon->updates++; } void sdl2_gl_switch(DisplayChangeListener *dcl, DisplaySurface *new_surface) { struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); DisplaySurface *old_surface = scon->surface; assert(scon->opengl); SDL_GL_MakeCurrent(scon->real_window, scon->winctx); xb_surface_gl_destroy_texture(scon->surface); scon->surface = new_surface; if (!new_surface) { // qemu_gl_fini_shader(scon->gls); // scon->gls = NULL; // sdl2_window_destroy(scon); return; } if (!scon->real_window) { // sdl2_window_create(scon); scon->real_window = m_window; scon->winctx = m_context; SDL_GL_MakeCurrent(scon->real_window, scon->winctx); // scon->gls = qemu_gl_init_shader(); } else if (old_surface && ((surface_width(old_surface) != surface_width(new_surface)) || (surface_height(old_surface) != surface_height(new_surface)))) { // sdl2_window_resize(scon); } xb_surface_gl_create_texture(scon->surface); } float fps = 1.0; static void update_fps(void) { static int64_t last_update = 0; const float r = 0.5;//0.1; static float avg = 1.0; int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); float ms = ((float)(now-last_update)/1000000.0); last_update = now; if (fabs(avg-ms) > 0.25*avg) avg = ms; else avg = avg*(1.0-r)+ms*r; fps = 1000.0/avg; } void sdl2_gl_refresh(DisplayChangeListener *dcl) { struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); assert(scon->opengl); update_fps(); SDL_GL_MakeCurrent(scon->real_window, scon->winctx); qemu_mutex_lock_iothread(); graphic_hw_update(dcl->con); if (scon->updates && scon->surface) { scon->updates = 0; } sdl2_poll_events(scon); qemu_mutex_unlock_iothread(); xemu_sdl2_gl_render_surface(scon); } void sdl2_gl_redraw(struct sdl2_console *scon) { assert(scon->opengl); if (scon->scanout_mode) { assert(0); /* sdl2_gl_scanout_flush actually only care about * the first argument. */ // return sdl2_gl_scanout_flush(&scon->dcl, 0, 0, 0, 0); } if (scon->surface) { // xemu_sdl2_gl_render_surface(scon); } } QEMUGLContext sdl2_gl_create_context(DisplayChangeListener *dcl, QEMUGLParams *params) { struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); SDL_GLContext ctx; assert(0); assert(scon->opengl); SDL_GL_MakeCurrent(scon->real_window, scon->winctx); SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1); if (scon->opts->gl == DISPLAYGL_MODE_ON || scon->opts->gl == DISPLAYGL_MODE_CORE) { SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE); } else if (scon->opts->gl == DISPLAYGL_MODE_ES) { SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES); } SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, params->major_ver); SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, params->minor_ver); ctx = SDL_GL_CreateContext(scon->real_window); /* If SDL fail to create a GL context and we use the "on" flag, * then try to fallback to GLES. */ if (!ctx && scon->opts->gl == DISPLAYGL_MODE_ON) { SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES); ctx = SDL_GL_CreateContext(scon->real_window); } return (QEMUGLContext)ctx; } void sdl2_gl_destroy_context(DisplayChangeListener *dcl, QEMUGLContext ctx) { SDL_GLContext sdlctx = (SDL_GLContext)ctx; SDL_GL_DeleteContext(sdlctx); } int sdl2_gl_make_context_current(DisplayChangeListener *dcl, QEMUGLContext ctx) { struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); SDL_GLContext sdlctx = (SDL_GLContext)ctx; assert(scon->opengl); return SDL_GL_MakeCurrent(scon->real_window, sdlctx); } QEMUGLContext sdl2_gl_get_current_context(DisplayChangeListener *dcl) { SDL_GLContext sdlctx; sdlctx = SDL_GL_GetCurrentContext(); return (QEMUGLContext)sdlctx; } void sdl2_gl_scanout_disable(DisplayChangeListener *dcl) { assert(0); #if 0 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); assert(scon->opengl); scon->w = 0; scon->h = 0; sdl2_set_scanout_mode(scon, false); #endif } void sdl2_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) { assert(0); #if 0 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); assert(scon->opengl); scon->x = x; scon->y = y; scon->w = w; scon->h = h; scon->y0_top = backing_y_0_top; SDL_GL_MakeCurrent(scon->real_window, scon->winctx); sdl2_set_scanout_mode(scon, true); egl_fb_setup_for_tex(&scon->guest_fb, backing_width, backing_height, backing_id, false); #endif } void sdl2_gl_scanout_flush(DisplayChangeListener *dcl, uint32_t x, uint32_t y, uint32_t w, uint32_t h) { assert(0); #if 0 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); int ww, wh; assert(scon->opengl); if (!scon->scanout_mode) { return; } if (!scon->guest_fb.framebuffer) { return; } SDL_GL_MakeCurrent(scon->real_window, scon->winctx); SDL_GetWindowSize(scon->real_window, &ww, &wh); egl_fb_setup_default(&scon->win_fb, ww, wh); egl_fb_blit(&scon->win_fb, &scon->guest_fb, !scon->y0_top); SDL_GL_SwapWindow(scon->real_window); #endif } // sdl2-input.c void sdl2_process_key(struct sdl2_console *scon, SDL_KeyboardEvent *ev) { int qcode; QemuConsole *con = scon->dcl.con; if (ev->keysym.scancode >= qemu_input_map_usb_to_qcode_len) { return; } qcode = qemu_input_map_usb_to_qcode[ev->keysym.scancode]; qkbd_state_key_event(scon->kbd, qcode, ev->type == SDL_KEYDOWN); if (!qemu_console_is_graphic(con)) { bool ctrl = qkbd_state_modifier_get(scon->kbd, QKBD_MOD_CTRL); if (ev->type == SDL_KEYDOWN) { switch (qcode) { case Q_KEY_CODE_RET: kbd_put_keysym_console(con, '\n'); break; default: kbd_put_qcode_console(con, qcode, ctrl); break; } } } } int gArgc; char **gArgv; // vl.c int qemu_main(int argc, char **argv, char **envp); static void *call_qemu_main(void *opaque) { int status; DPRINTF("Second thread: calling qemu_main()\n"); status = qemu_main(gArgc, gArgv, NULL); DPRINTF("Second thread: qemu_main() returned, exiting\n"); exit(status); } static void pre_swap(void) { } /* Note: only supports millisecond resolution on Windows */ static void sleep_ns(int64_t ns) { #ifndef _WIN32 struct timespec sleep_delay, rem_delay; sleep_delay.tv_sec = ns / 1000000000LL; sleep_delay.tv_nsec = ns % 1000000000LL; nanosleep(&sleep_delay, &rem_delay); #else Sleep(ns / SCALE_MS); #endif } static void post_swap(void) { // Throttle to make sure swaps happen at 60Hz static int64_t last_update = 0; int64_t deadline = last_update + 16666666; int64_t sleep_acc = 0; int64_t spin_acc = 0; #ifndef _WIN32 const int64_t sleep_threshold = 2000000; #else const int64_t sleep_threshold = 250000; #endif while (1) { int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); int64_t time_remaining = deadline - now; if (now < deadline) { if (time_remaining > sleep_threshold) { // Try to sleep until the until reaching the sleep threshold. sleep_ns(time_remaining - sleep_threshold); sleep_acc += qemu_clock_get_ns(QEMU_CLOCK_REALTIME)-now; } else { // Simply spin to avoid extra delays incurred with swapping to // another process and back in the event of being within // threshold to desired event. spin_acc++; } } else { DPRINTF("zzZz %g %ld\n", (double)sleep_acc/1000000.0, spin_acc); last_update = now; break; } } } // #undef main int main(int argc, char **argv) { QemuThread thread; DPRINTF("Entered main()\n"); gArgc = argc; gArgv = argv; sdl2_display_very_early_init(NULL); qemu_sem_init(&display_init_sem, 0); qemu_thread_create(&thread, "qemu_main", call_qemu_main, NULL, QEMU_THREAD_DETACHED); DPRINTF("Main thread: waiting for display_init_sem\n"); qemu_sem_wait(&display_init_sem); DPRINTF("Main thread: initializing app\n"); while (1) { sdl2_gl_refresh(&sdl2_console[0].dcl); } }