root / sdl.c @ 67b915a5
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/*
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* QEMU SDL display driver
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h" |
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#include <SDL.h> |
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#ifndef _WIN32
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#include <signal.h> |
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#endif
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static SDL_Surface *screen;
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static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ |
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static int last_vm_running; |
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static void sdl_update(DisplayState *ds, int x, int y, int w, int h) |
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{
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// printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
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SDL_UpdateRect(screen, x, y, w, h); |
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} |
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static void sdl_resize(DisplayState *ds, int w, int h) |
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{
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int flags;
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// printf("resizing to %d %d\n", w, h);
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flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; |
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flags |= SDL_RESIZABLE; |
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screen = SDL_SetVideoMode(w, h, 0, flags);
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if (!screen) {
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fprintf(stderr, "Could not open SDL display\n");
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exit(1);
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} |
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ds->data = screen->pixels; |
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ds->linesize = screen->pitch; |
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ds->depth = screen->format->BitsPerPixel; |
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} |
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static const uint32_t x_keycode_to_pc_keycode[61] = { |
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0x47e0, /* 97 Home */ |
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0x48e0, /* 98 Up */ |
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0x49e0, /* 99 PgUp */ |
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0x4be0, /* 100 Left */ |
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0x4c, /* 101 KP-5 */ |
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0x4de0, /* 102 Right */ |
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0x4fe0, /* 103 End */ |
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0x50e0, /* 104 Down */ |
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0x51e0, /* 105 PgDn */ |
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0x52e0, /* 106 Ins */ |
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0x53e0, /* 107 Del */ |
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0x1ce0, /* 108 Enter */ |
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0x1de0, /* 109 Ctrl-R */ |
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0x451de1, /* 110 Pause */ |
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0x37e0, /* 111 Print */ |
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0x35e0, /* 112 Divide */ |
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0x38e0, /* 113 Alt-R */ |
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0x46e0, /* 114 Break */ |
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0x0, /* 115 */ |
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0x0, /* 116 */ |
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0x0, /* 117 */ |
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0x0, /* 118 */ |
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0x0, /* 119 */ |
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0x0, /* 120 */ |
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0x0, /* 121 */ |
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0x0, /* 122 */ |
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0x0, /* 123 */ |
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0x0, /* 124 */ |
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0x0, /* 125 */ |
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0x0, /* 126 */ |
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0x0, /* 127 */ |
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0x0, /* 128 */ |
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0x0, /* 129 */ |
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0x0, /* 130 */ |
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0x0, /* 131 */ |
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0x0, /* 132 */ |
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0x0, /* 133 */ |
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0x0, /* 134 */ |
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0x0, /* 135 */ |
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0x47, /* 136 KP_7 */ |
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0x48, /* 137 KP_8 */ |
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0x49, /* 138 KP_9 */ |
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0x4b, /* 139 KP_4 */ |
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0x4c, /* 140 KP_5 */ |
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0x4d, /* 141 KP_6 */ |
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0x4f, /* 142 KP_1 */ |
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0x50, /* 143 KP_2 */ |
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0x51, /* 144 KP_3 */ |
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0x52, /* 145 KP_0 */ |
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0x53, /* 146 KP_. */ |
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0x47, /* 147 KP_HOME */ |
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0x48, /* 148 KP_UP */ |
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0x49, /* 149 KP_PgUp */ |
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0x4b, /* 150 KP_Left */ |
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0x4c, /* 151 KP_ */ |
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0x4d, /* 152 KP_Right */ |
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0x4f, /* 153 KP_End */ |
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0x50, /* 154 KP_Down */ |
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0x51, /* 155 KP_PgDn */ |
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0x52, /* 156 KP_Ins */ |
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0x53, /* 157 KP_Del */ |
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}; |
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static void sdl_process_key(SDL_KeyboardEvent *ev) |
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{
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int keycode, v;
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/* XXX: not portable, but avoids complicated mappings */
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keycode = ev->keysym.scancode; |
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if (keycode < 9) { |
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keycode = 0;
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} else if (keycode < 97) { |
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keycode -= 8; /* just an offset */ |
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} else if (keycode < 158) { |
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/* use conversion table */
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keycode = x_keycode_to_pc_keycode[keycode - 97];
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} else {
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keycode = 0;
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} |
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/* now send the key code */
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while (keycode != 0) { |
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v = keycode & 0xff;
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if (ev->type == SDL_KEYUP)
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v |= 0x80;
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kbd_put_keycode(v); |
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keycode >>= 8;
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} |
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} |
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static void sdl_update_caption(void) |
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{
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char buf[1024]; |
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strcpy(buf, "QEMU");
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if (!vm_running) {
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strcat(buf, " [Stopped]");
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} |
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if (gui_grab) {
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strcat(buf, " - Press Ctrl-Shift to exit grab");
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} |
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SDL_WM_SetCaption(buf, "QEMU");
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} |
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static void sdl_grab_start(void) |
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{
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SDL_ShowCursor(0);
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SDL_WM_GrabInput(SDL_GRAB_ON); |
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/* dummy read to avoid moving the mouse */
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SDL_GetRelativeMouseState(NULL, NULL); |
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gui_grab = 1;
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sdl_update_caption(); |
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} |
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static void sdl_grab_end(void) |
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{
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SDL_WM_GrabInput(SDL_GRAB_OFF); |
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SDL_ShowCursor(1);
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gui_grab = 0;
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sdl_update_caption(); |
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} |
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static void sdl_send_mouse_event(void) |
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{
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int dx, dy, dz, state, buttons;
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state = SDL_GetRelativeMouseState(&dx, &dy); |
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buttons = 0;
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if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
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buttons |= MOUSE_EVENT_LBUTTON; |
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if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
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buttons |= MOUSE_EVENT_RBUTTON; |
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if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
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buttons |= MOUSE_EVENT_MBUTTON; |
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/* XXX: test wheel */
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dz = 0;
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#ifdef SDL_BUTTON_WHEELUP
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if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
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dz--; |
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if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
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dz++; |
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#endif
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kbd_mouse_event(dx, dy, dz, buttons); |
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} |
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static void sdl_refresh(DisplayState *ds) |
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{
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SDL_Event ev1, *ev = &ev1; |
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if (last_vm_running != vm_running) {
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last_vm_running = vm_running; |
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sdl_update_caption(); |
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} |
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vga_update_display(); |
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while (SDL_PollEvent(ev)) {
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switch (ev->type) {
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case SDL_VIDEOEXPOSE:
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sdl_update(ds, 0, 0, screen->w, screen->h); |
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break;
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case SDL_KEYDOWN:
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case SDL_KEYUP:
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if (ev->type == SDL_KEYDOWN) {
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if ((SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL)) ==
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(KMOD_LSHIFT | KMOD_LCTRL)) {
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/* exit/enter grab if pressing Ctrl-Shift */
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if (!gui_grab)
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sdl_grab_start(); |
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else
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sdl_grab_end(); |
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} |
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} |
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sdl_process_key(&ev->key); |
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break;
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case SDL_QUIT:
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reset_requested = 1;
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break;
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case SDL_MOUSEMOTION:
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if (gui_grab) {
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sdl_send_mouse_event(); |
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} |
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break;
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case SDL_MOUSEBUTTONDOWN:
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case SDL_MOUSEBUTTONUP:
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{
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SDL_MouseButtonEvent *bev = &ev->button; |
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if (!gui_grab) {
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if (ev->type == SDL_MOUSEBUTTONDOWN &&
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(bev->state & SDL_BUTTON_LMASK)) {
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/* start grabbing all events */
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sdl_grab_start(); |
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} |
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} else {
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sdl_send_mouse_event(); |
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} |
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} |
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break;
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default:
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break;
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} |
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} |
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} |
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static void sdl_cleanup(void) |
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{
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SDL_Quit(); |
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} |
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void sdl_display_init(DisplayState *ds)
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{
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int flags;
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flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; |
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if (SDL_Init (flags)) {
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fprintf(stderr, "Could not initialize SDL - exiting\n");
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exit(1);
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} |
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#ifndef _WIN32
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/* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
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signal(SIGINT, SIG_DFL); |
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signal(SIGQUIT, SIG_DFL); |
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#endif
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ds->dpy_update = sdl_update; |
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ds->dpy_resize = sdl_resize; |
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ds->dpy_refresh = sdl_refresh; |
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sdl_resize(ds, 640, 400); |
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sdl_update_caption(); |
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SDL_EnableKeyRepeat(250, 50); |
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gui_grab = 0;
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atexit(sdl_cleanup); |
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} |