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| -rw-r--r-- | sdl.c | 275 |
1 files changed, 275 insertions, 0 deletions
@@ -0,0 +1,275 @@ +/* + * 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 <stdlib.h> +#include <stdio.h> +#include <stdarg.h> +#include <string.h> +#include <getopt.h> +#include <inttypes.h> +#include <unistd.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <signal.h> +#include <time.h> +#include <sys/time.h> +#include <malloc.h> +#include <termios.h> +#include <sys/poll.h> +#include <errno.h> +#include <sys/wait.h> +#include <netinet/in.h> + +#include <SDL.h> + +#include "cpu-i386.h" +#include "exec.h" + +#include "vl.h" + +static SDL_Surface *screen; +static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ + +static void sdl_update(DisplayState *ds, int x, int y, int w, int 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; + flags |= SDL_RESIZABLE; + screen = SDL_SetVideoMode(w, h, 0, flags); + if (!screen) { + fprintf(stderr, "Could not open SDL display\n"); + exit(1); + } + ds->data = screen->pixels; + ds->linesize = screen->pitch; + ds->depth = screen->format->BitsPerPixel; +} + +static const uint32_t x_keycode_to_pc_keycode[61] = { + 0x47e0, /* 97 Home */ + 0x48e0, /* 98 Up */ + 0x49e0, /* 99 PgUp */ + 0x4be0, /* 100 Left */ + 0x4c, /* 101 KP-5 */ + 0x4de0, /* 102 Right */ + 0x4fe0, /* 103 End */ + 0x50e0, /* 104 Down */ + 0x51e0, /* 105 PgDn */ + 0x52e0, /* 106 Ins */ + 0x53e0, /* 107 Del */ + 0x1ce0, /* 108 Enter */ + 0x1de0, /* 109 Ctrl-R */ + 0x451de1, /* 110 Pause */ + 0x37e0, /* 111 Print */ + 0x35e0, /* 112 Divide */ + 0x38e0, /* 113 Alt-R */ + 0x46e0, /* 114 Break */ + 0x0, /* 115 */ + 0x0, /* 116 */ + 0x0, /* 117 */ + 0x0, /* 118 */ + 0x0, /* 119 */ + 0x0, /* 120 */ + 0x0, /* 121 */ + 0x0, /* 122 */ + 0x0, /* 123 */ + 0x0, /* 124 */ + 0x0, /* 125 */ + 0x0, /* 126 */ + 0x0, /* 127 */ + 0x0, /* 128 */ + 0x0, /* 129 */ + 0x0, /* 130 */ + 0x0, /* 131 */ + 0x0, /* 132 */ + 0x0, /* 133 */ + 0x0, /* 134 */ + 0x0, /* 135 */ + 0x47, /* 136 KP_7 */ + 0x48, /* 137 KP_8 */ + 0x49, /* 138 KP_9 */ + 0x4b, /* 139 KP_4 */ + 0x4c, /* 140 KP_5 */ + 0x4d, /* 141 KP_6 */ + 0x4f, /* 142 KP_1 */ + 0x50, /* 143 KP_2 */ + 0x51, /* 144 KP_3 */ + 0x52, /* 145 KP_0 */ + 0x53, /* 146 KP_. */ + 0x47, /* 147 KP_HOME */ + 0x48, /* 148 KP_UP */ + 0x49, /* 149 KP_PgUp */ + 0x4b, /* 150 KP_Left */ + 0x4c, /* 151 KP_ */ + 0x4d, /* 152 KP_Right */ + 0x4f, /* 153 KP_End */ + 0x50, /* 154 KP_Down */ + 0x51, /* 155 KP_PgDn */ + 0x52, /* 156 KP_Ins */ + 0x53, /* 157 KP_Del */ +}; + +static void sdl_process_key(SDL_KeyboardEvent *ev) +{ + int keycode, v; + + /* XXX: not portable, but avoids complicated mappings */ + keycode = ev->keysym.scancode; + if (keycode < 9) { + keycode = 0; + } else if (keycode < 97) { + keycode -= 8; /* just an offset */ + } else if (keycode < 158) { + /* use conversion table */ + keycode = x_keycode_to_pc_keycode[keycode - 97]; + } else { + keycode = 0; + } + + /* now send the key code */ + while (keycode != 0) { + v = keycode & 0xff; + if (ev->type == SDL_KEYUP) + v |= 0x80; + kbd_put_keycode(v); + keycode >>= 8; + } +} + +static void sdl_grab_start(void) +{ + SDL_WM_SetCaption("QEMU - Press Ctrl-Shift to exit grab", "QEMU"); + SDL_ShowCursor(0); + SDL_WM_GrabInput(SDL_GRAB_ON); + /* dummy read to avoid moving the mouse */ + SDL_GetRelativeMouseState(NULL, NULL); + gui_grab = 1; +} + +static void sdl_grab_end(void) +{ + SDL_WM_SetCaption("QEMU", "QEMU"); + SDL_WM_GrabInput(SDL_GRAB_OFF); + SDL_ShowCursor(1); + gui_grab = 0; +} + +static void sdl_send_mouse_event(void) +{ + int dx, dy, dz, 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; + /* XXX: test wheel */ + dz = 0; + if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP)) + dz--; + if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN)) + dz++; + kbd_mouse_event(dx, dy, dz, buttons); +} + +static void sdl_refresh(DisplayState *ds) +{ + SDL_Event ev1, *ev = &ev1; + + vga_update_display(); + 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 ((SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL)) == + (KMOD_LSHIFT | KMOD_LCTRL)) { + /* exit/enter grab if pressing Ctrl-Shift */ + if (!gui_grab) + sdl_grab_start(); + else + sdl_grab_end(); + } + } + sdl_process_key(&ev->key); + break; + case SDL_QUIT: + reset_requested = 1; + break; + case SDL_MOUSEMOTION: + if (gui_grab) { + sdl_send_mouse_event(); + } + break; + case SDL_MOUSEBUTTONDOWN: + case SDL_MOUSEBUTTONUP: + { + SDL_MouseButtonEvent *bev = &ev->button; + if (!gui_grab) { + if (ev->type == SDL_MOUSEBUTTONDOWN && + (bev->state & SDL_BUTTON_LMASK)) { + /* start grabbing all events */ + sdl_grab_start(); + } + } else { + sdl_send_mouse_event(); + } + } + break; + default: + break; + } + } +} + +void sdl_display_init(DisplayState *ds) +{ + int flags; + + flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; + if (SDL_Init (flags)) { + fprintf(stderr, "Could not initialize SDL - exiting\n"); + exit(1); + } + ds->dpy_update = sdl_update; + ds->dpy_resize = sdl_resize; + ds->dpy_refresh = sdl_refresh; + + sdl_resize(ds, 640, 400); + SDL_WM_SetCaption("QEMU", "QEMU"); + SDL_EnableKeyRepeat(250, 50); + gui_grab = 0; +} |