gwj / at91sam9263 · Commits

Commit 0f0b726444c45004910617da0c5bce666caa07b3

Authored by bellard
1 parent b92e5a22

SDL support for VGA, keyboard and mouse 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@348 c046a42c-6fe2-441c-8c8c-71466251a162
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sdl.c 0 → 100644
  View file @0f0b726
  1 +/*
  2 + * QEMU SDL display driver
  3 + *
  4 + * Copyright (c) 2003 Fabrice Bellard
  5 + *
  6 + * Permission is hereby granted, free of charge, to any person obtaining a copy
  7 + * of this software and associated documentation files (the "Software"), to deal
  8 + * in the Software without restriction, including without limitation the rights
  9 + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 + * copies of the Software, and to permit persons to whom the Software is
  11 + * furnished to do so, subject to the following conditions:
  12 + *
  13 + * The above copyright notice and this permission notice shall be included in
  14 + * all copies or substantial portions of the Software.
  15 + *
  16 + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 + * THE SOFTWARE.
  23 + */
  24 +#include <stdlib.h>
  25 +#include <stdio.h>
  26 +#include <stdarg.h>
  27 +#include <string.h>
  28 +#include <getopt.h>
  29 +#include <inttypes.h>
  30 +#include <unistd.h>
  31 +#include <sys/mman.h>
  32 +#include <fcntl.h>
  33 +#include <signal.h>
  34 +#include <time.h>
  35 +#include <sys/time.h>
  36 +#include <malloc.h>
  37 +#include <termios.h>
  38 +#include <sys/poll.h>
  39 +#include <errno.h>
  40 +#include <sys/wait.h>
  41 +#include <netinet/in.h>
  42 +
  43 +#include <SDL.h>
  44 +
  45 +#include "cpu-i386.h"
  46 +#include "exec.h"
  47 +
  48 +#include "vl.h"
  49 +
  50 +static SDL_Surface *screen;
  51 +static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
  52 +
  53 +static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
  54 +{
  55 + SDL_UpdateRect(screen, x, y, w, h);
  56 +}
  57 +
  58 +static void sdl_resize(DisplayState *ds, int w, int h)
  59 +{
  60 + int flags;
  61 +
  62 + // printf("resizing to %d %d\n", w, h);
  63 +
  64 + flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
  65 + flags |= SDL_RESIZABLE;
  66 + screen = SDL_SetVideoMode(w, h, 0, flags);
  67 + if (!screen) {
  68 + fprintf(stderr, "Could not open SDL display\n");
  69 + exit(1);
  70 + }
  71 + ds->data = screen->pixels;
  72 + ds->linesize = screen->pitch;
  73 + ds->depth = screen->format->BitsPerPixel;
  74 +}
  75 +
  76 +static const uint32_t x_keycode_to_pc_keycode[61] = {
  77 + 0x47e0, /* 97 Home */
  78 + 0x48e0, /* 98 Up */
  79 + 0x49e0, /* 99 PgUp */
  80 + 0x4be0, /* 100 Left */
  81 + 0x4c, /* 101 KP-5 */
  82 + 0x4de0, /* 102 Right */
  83 + 0x4fe0, /* 103 End */
  84 + 0x50e0, /* 104 Down */
  85 + 0x51e0, /* 105 PgDn */
  86 + 0x52e0, /* 106 Ins */
  87 + 0x53e0, /* 107 Del */
  88 + 0x1ce0, /* 108 Enter */
  89 + 0x1de0, /* 109 Ctrl-R */
  90 + 0x451de1, /* 110 Pause */
  91 + 0x37e0, /* 111 Print */
  92 + 0x35e0, /* 112 Divide */
  93 + 0x38e0, /* 113 Alt-R */
  94 + 0x46e0, /* 114 Break */
  95 + 0x0, /* 115 */
  96 + 0x0, /* 116 */
  97 + 0x0, /* 117 */
  98 + 0x0, /* 118 */
  99 + 0x0, /* 119 */
  100 + 0x0, /* 120 */
  101 + 0x0, /* 121 */
  102 + 0x0, /* 122 */
  103 + 0x0, /* 123 */
  104 + 0x0, /* 124 */
  105 + 0x0, /* 125 */
  106 + 0x0, /* 126 */
  107 + 0x0, /* 127 */
  108 + 0x0, /* 128 */
  109 + 0x0, /* 129 */
  110 + 0x0, /* 130 */
  111 + 0x0, /* 131 */
  112 + 0x0, /* 132 */
  113 + 0x0, /* 133 */
  114 + 0x0, /* 134 */
  115 + 0x0, /* 135 */
  116 + 0x47, /* 136 KP_7 */
  117 + 0x48, /* 137 KP_8 */
  118 + 0x49, /* 138 KP_9 */
  119 + 0x4b, /* 139 KP_4 */
  120 + 0x4c, /* 140 KP_5 */
  121 + 0x4d, /* 141 KP_6 */
  122 + 0x4f, /* 142 KP_1 */
  123 + 0x50, /* 143 KP_2 */
  124 + 0x51, /* 144 KP_3 */
  125 + 0x52, /* 145 KP_0 */
  126 + 0x53, /* 146 KP_. */
  127 + 0x47, /* 147 KP_HOME */
  128 + 0x48, /* 148 KP_UP */
  129 + 0x49, /* 149 KP_PgUp */
  130 + 0x4b, /* 150 KP_Left */
  131 + 0x4c, /* 151 KP_ */
  132 + 0x4d, /* 152 KP_Right */
  133 + 0x4f, /* 153 KP_End */
  134 + 0x50, /* 154 KP_Down */
  135 + 0x51, /* 155 KP_PgDn */
  136 + 0x52, /* 156 KP_Ins */
  137 + 0x53, /* 157 KP_Del */
  138 +};
  139 +
  140 +static void sdl_process_key(SDL_KeyboardEvent *ev)
  141 +{
  142 + int keycode, v;
  143 +
  144 + /* XXX: not portable, but avoids complicated mappings */
  145 + keycode = ev->keysym.scancode;
  146 + if (keycode < 9) {
  147 + keycode = 0;
  148 + } else if (keycode < 97) {
  149 + keycode -= 8; /* just an offset */
  150 + } else if (keycode < 158) {
  151 + /* use conversion table */
  152 + keycode = x_keycode_to_pc_keycode[keycode - 97];
  153 + } else {
  154 + keycode = 0;
  155 + }
  156 +
  157 + /* now send the key code */
  158 + while (keycode != 0) {
  159 + v = keycode & 0xff;
  160 + if (ev->type == SDL_KEYUP)
  161 + v |= 0x80;
  162 + kbd_put_keycode(v);
  163 + keycode >>= 8;
  164 + }
  165 +}
  166 +
  167 +static void sdl_grab_start(void)
  168 +{
  169 + SDL_WM_SetCaption("QEMU - Press Ctrl-Shift to exit grab", "QEMU");
  170 + SDL_ShowCursor(0);
  171 + SDL_WM_GrabInput(SDL_GRAB_ON);
  172 + /* dummy read to avoid moving the mouse */
  173 + SDL_GetRelativeMouseState(NULL, NULL);
  174 + gui_grab = 1;
  175 +}
  176 +
  177 +static void sdl_grab_end(void)
  178 +{
  179 + SDL_WM_SetCaption("QEMU", "QEMU");
  180 + SDL_WM_GrabInput(SDL_GRAB_OFF);
  181 + SDL_ShowCursor(1);
  182 + gui_grab = 0;
  183 +}
  184 +
  185 +static void sdl_send_mouse_event(void)
  186 +{
  187 + int dx, dy, dz, state, buttons;
  188 + state = SDL_GetRelativeMouseState(&dx, &dy);
  189 + buttons = 0;
  190 + if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
  191 + buttons |= MOUSE_EVENT_LBUTTON;
  192 + if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
  193 + buttons |= MOUSE_EVENT_RBUTTON;
  194 + if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
  195 + buttons |= MOUSE_EVENT_MBUTTON;
  196 + /* XXX: test wheel */
  197 + dz = 0;
  198 + if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
  199 + dz--;
  200 + if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
  201 + dz++;
  202 + kbd_mouse_event(dx, dy, dz, buttons);
  203 +}
  204 +
  205 +static void sdl_refresh(DisplayState *ds)
  206 +{
  207 + SDL_Event ev1, *ev = &ev1;
  208 +
  209 + vga_update_display();
  210 + while (SDL_PollEvent(ev)) {
  211 + switch (ev->type) {
  212 + case SDL_VIDEOEXPOSE:
  213 + sdl_update(ds, 0, 0, screen->w, screen->h);
  214 + break;
  215 + case SDL_KEYDOWN:
  216 + case SDL_KEYUP:
  217 + if (ev->type == SDL_KEYDOWN) {
  218 + if ((SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL)) ==
  219 + (KMOD_LSHIFT | KMOD_LCTRL)) {
  220 + /* exit/enter grab if pressing Ctrl-Shift */
  221 + if (!gui_grab)
  222 + sdl_grab_start();
  223 + else
  224 + sdl_grab_end();
  225 + }
  226 + }
  227 + sdl_process_key(&ev->key);
  228 + break;
  229 + case SDL_QUIT:
  230 + reset_requested = 1;
  231 + break;
  232 + case SDL_MOUSEMOTION:
  233 + if (gui_grab) {
  234 + sdl_send_mouse_event();
  235 + }
  236 + break;
  237 + case SDL_MOUSEBUTTONDOWN:
  238 + case SDL_MOUSEBUTTONUP:
  239 + {
  240 + SDL_MouseButtonEvent *bev = &ev->button;
  241 + if (!gui_grab) {
  242 + if (ev->type == SDL_MOUSEBUTTONDOWN &&
  243 + (bev->state & SDL_BUTTON_LMASK)) {
  244 + /* start grabbing all events */
  245 + sdl_grab_start();
  246 + }
  247 + } else {
  248 + sdl_send_mouse_event();
  249 + }
  250 + }
  251 + break;
  252 + default:
  253 + break;
  254 + }
  255 + }
  256 +}
  257 +
  258 +void sdl_display_init(DisplayState *ds)
  259 +{
  260 + int flags;
  261 +
  262 + flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
  263 + if (SDL_Init (flags)) {
  264 + fprintf(stderr, "Could not initialize SDL - exiting\n");
  265 + exit(1);
  266 + }
  267 + ds->dpy_update = sdl_update;
  268 + ds->dpy_resize = sdl_resize;
  269 + ds->dpy_refresh = sdl_refresh;
  270 +
  271 + sdl_resize(ds, 640, 400);
  272 + SDL_WM_SetCaption("QEMU", "QEMU");
  273 + SDL_EnableKeyRepeat(250, 50);
  274 + gui_grab = 0;
  275 +}