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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
31

    
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#if defined(__APPLE__)
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#define CONFIG_SDL_GENERIC_KBD
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#endif
35

    
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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 int gui_saved_grab;
40
static int gui_fullscreen;
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static int gui_key_modifier_pressed;
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static int gui_keysym;
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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)
51
{
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    int flags;
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54
    //    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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    if (gui_fullscreen)
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        flags |= SDL_FULLSCREEN;
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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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    ds->width = w;
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    ds->height = h;
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}
71

    
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#ifdef CONFIG_SDL_GENERIC_KBD
73

    
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/* XXX: use keymap tables defined in the VNC patch because the
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   following code suppose you have a US keyboard. */
76

    
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static const uint8_t scancodes[SDLK_LAST] = {
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    [SDLK_ESCAPE]   = 0x01,
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    [SDLK_1]        = 0x02,
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    [SDLK_2]        = 0x03,
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    [SDLK_3]        = 0x04,
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    [SDLK_4]        = 0x05,
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    [SDLK_5]        = 0x06,
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    [SDLK_6]        = 0x07,
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    [SDLK_7]        = 0x08,
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    [SDLK_8]        = 0x09,
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    [SDLK_9]        = 0x0a,
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    [SDLK_0]        = 0x0b,
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    [SDLK_MINUS]    = 0x0c,
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    [SDLK_EQUALS]   = 0x0d,
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    [SDLK_BACKSPACE]        = 0x0e,
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    [SDLK_TAB]      = 0x0f,
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    [SDLK_q]        = 0x10,
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    [SDLK_w]        = 0x11,
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    [SDLK_e]        = 0x12,
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    [SDLK_r]        = 0x13,
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    [SDLK_t]        = 0x14,
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    [SDLK_y]        = 0x15,
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    [SDLK_u]        = 0x16,
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    [SDLK_i]        = 0x17,
101
    [SDLK_o]        = 0x18,
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    [SDLK_p]        = 0x19,
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    [SDLK_LEFTBRACKET]      = 0x1a,
104
    [SDLK_RIGHTBRACKET]     = 0x1b,
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    [SDLK_RETURN]   = 0x1c,
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    [SDLK_LCTRL]    = 0x1d,
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    [SDLK_a]        = 0x1e,
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    [SDLK_s]        = 0x1f,
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    [SDLK_d]        = 0x20,
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    [SDLK_f]        = 0x21,
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    [SDLK_g]        = 0x22,
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    [SDLK_h]        = 0x23,
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    [SDLK_j]        = 0x24,
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    [SDLK_k]        = 0x25,
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    [SDLK_l]        = 0x26,
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    [SDLK_SEMICOLON]        = 0x27,
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    [SDLK_QUOTE]    = 0x28,
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    [SDLK_BACKQUOTE]        = 0x29,
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    [SDLK_LSHIFT]   = 0x2a,
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    [SDLK_BACKSLASH]        = 0x2b,
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    [SDLK_z]        = 0x2c,
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    [SDLK_x]        = 0x2d,
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    [SDLK_c]        = 0x2e,
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    [SDLK_v]        = 0x2f,
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    [SDLK_b]        = 0x30,
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    [SDLK_n]        = 0x31,
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    [SDLK_m]        = 0x32,
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    [SDLK_COMMA]    = 0x33,
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    [SDLK_PERIOD]   = 0x34,
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    [SDLK_SLASH]    = 0x35,
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    [SDLK_KP_MULTIPLY]      = 0x37,
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    [SDLK_LALT]     = 0x38,
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    [SDLK_SPACE]    = 0x39,
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    [SDLK_CAPSLOCK] = 0x3a,
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    [SDLK_F1]       = 0x3b,
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    [SDLK_F2]       = 0x3c,
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    [SDLK_F3]       = 0x3d,
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    [SDLK_F4]       = 0x3e,
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    [SDLK_F5]       = 0x3f,
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    [SDLK_F6]       = 0x40,
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    [SDLK_F7]       = 0x41,
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    [SDLK_F8]       = 0x42,
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    [SDLK_F9]       = 0x43,
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    [SDLK_F10]      = 0x44,
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    [SDLK_NUMLOCK]  = 0x45,
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    [SDLK_SCROLLOCK]        = 0x46,
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    [SDLK_KP7]      = 0x47,
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    [SDLK_KP8]      = 0x48,
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    [SDLK_KP9]      = 0x49,
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    [SDLK_KP_MINUS] = 0x4a,
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    [SDLK_KP4]      = 0x4b,
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    [SDLK_KP5]      = 0x4c,
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    [SDLK_KP6]      = 0x4d,
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    [SDLK_KP_PLUS]  = 0x4e,
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    [SDLK_KP1]      = 0x4f,
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    [SDLK_KP2]      = 0x50,
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    [SDLK_KP3]      = 0x51,
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    [SDLK_KP0]      = 0x52,
159
    [SDLK_KP_PERIOD]        = 0x53,
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    [SDLK_PRINT]    = 0x54,
161
    [SDLK_LMETA]    = 0x56,
162

    
163
    [SDLK_KP_ENTER]  = 0x9c,
164
    [SDLK_KP_DIVIDE] = 0xb5,
165
    
166
    [SDLK_UP]       = 0xc8,
167
    [SDLK_DOWN]     = 0xd0,
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    [SDLK_RIGHT]    = 0xcd,
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    [SDLK_LEFT]     = 0xcb,
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    [SDLK_INSERT]   = 0xd2,
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    [SDLK_HOME]     = 0xc7,
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    [SDLK_END]      = 0xcf,
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    [SDLK_PAGEUP]   = 0xc9,
174
    [SDLK_PAGEDOWN] = 0xd1,
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    [SDLK_DELETE]   = 0xd3,
176
};
177

    
178
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
179
{
180
    return scancodes[ev->keysym.sym];
181
}
182

    
183
#elif defined(_WIN32)
184

    
185
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
186
{
187
    return ev->keysym.scancode;
188
}
189

    
190
#else
191

    
192
static const uint8_t x_keycode_to_pc_keycode[61] = {
193
   0xc7,      /*  97  Home   */
194
   0xc8,      /*  98  Up     */
195
   0xc9,      /*  99  PgUp   */
196
   0xcb,      /* 100  Left   */
197
   0x4c,        /* 101  KP-5   */
198
   0xcd,      /* 102  Right  */
199
   0xcf,      /* 103  End    */
200
   0xd0,      /* 104  Down   */
201
   0xd1,      /* 105  PgDn   */
202
   0xd2,      /* 106  Ins    */
203
   0xd3,      /* 107  Del    */
204
   0x9c,      /* 108  Enter  */
205
   0x9d,      /* 109  Ctrl-R */
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   0x0,       /* 110  Pause  */
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   0xb7,      /* 111  Print  */
208
   0xb5,      /* 112  Divide */
209
   0xb8,      /* 113  Alt-R  */
210
   0xc6,      /* 114  Break  */   
211
   0x0,         /* 115 */
212
   0x0,         /* 116 */
213
   0x0,         /* 117 */
214
   0x0,         /* 118 */
215
   0x0,         /* 119 */
216
   0x70,         /* 120 Hiragana_Katakana */
217
   0x0,         /* 121 */
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   0x0,         /* 122 */
219
   0x73,         /* 123 backslash */
220
   0x0,         /* 124 */
221
   0x0,         /* 125 */
222
   0x0,         /* 126 */
223
   0x0,         /* 127 */
224
   0x0,         /* 128 */
225
   0x79,         /* 129 Henkan */
226
   0x0,         /* 130 */
227
   0x7b,         /* 131 Muhenkan */
228
   0x0,         /* 132 */
229
   0x7d,         /* 133 Yen */
230
   0x0,         /* 134 */
231
   0x0,         /* 135 */
232
   0x47,         /* 136 KP_7 */
233
   0x48,         /* 137 KP_8 */
234
   0x49,         /* 138 KP_9 */
235
   0x4b,         /* 139 KP_4 */
236
   0x4c,         /* 140 KP_5 */
237
   0x4d,         /* 141 KP_6 */
238
   0x4f,         /* 142 KP_1 */
239
   0x50,         /* 143 KP_2 */
240
   0x51,         /* 144 KP_3 */
241
   0x52,         /* 145 KP_0 */
242
   0x53,         /* 146 KP_. */
243
   0x47,         /* 147 KP_HOME */
244
   0x48,         /* 148 KP_UP */
245
   0x49,         /* 149 KP_PgUp */
246
   0x4b,         /* 150 KP_Left */
247
   0x4c,         /* 151 KP_ */
248
   0x4d,         /* 152 KP_Right */
249
   0x4f,         /* 153 KP_End */
250
   0x50,         /* 154 KP_Down */
251
   0x51,         /* 155 KP_PgDn */
252
   0x52,         /* 156 KP_Ins */
253
   0x53,         /* 157 KP_Del */
254
};
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256
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
257
{
258
    int keycode;
259

    
260
    keycode = ev->keysym.scancode;
261

    
262
    if (keycode < 9) {
263
        keycode = 0;
264
    } else if (keycode < 97) {
265
        keycode -= 8; /* just an offset */
266
    } else if (keycode < 158) {
267
        /* use conversion table */
268
        keycode = x_keycode_to_pc_keycode[keycode - 97];
269
    } else {
270
        keycode = 0;
271
    }
272
    return keycode;
273
}
274

    
275
#endif
276

    
277
static void sdl_process_key(SDL_KeyboardEvent *ev)
278
{
279
    int keycode, v, i;
280
    static uint8_t modifiers_state[256];
281

    
282
    if (ev->keysym.sym == SDLK_PAUSE) {
283
        /* specific case */
284
        v = 0;
285
        if (ev->type == SDL_KEYUP)
286
            v |= 0x80;
287
        kbd_put_keycode(0xe1);
288
        kbd_put_keycode(0x1d | v);
289
        kbd_put_keycode(0x45 | v);
290
        return;
291
    }
292

    
293
    /* XXX: not portable, but avoids complicated mappings */
294
    keycode = sdl_keyevent_to_keycode(ev);
295

    
296
    switch(keycode) {
297
    case 0x00:
298
        /* sent when leaving window: reset the modifiers state */
299
        for(i = 0; i < 256; i++) {
300
            if (modifiers_state[i]) {
301
                if (i & 0x80)
302
                    kbd_put_keycode(0xe0);
303
                kbd_put_keycode(i | 0x80);
304
            }
305
        }
306
        return;
307
    case 0x2a:                          /* Left Shift */
308
    case 0x36:                          /* Right Shift */
309
    case 0x1d:                          /* Left CTRL */
310
    case 0x9d:                          /* Right CTRL */
311
    case 0x38:                          /* Left ALT */
312
    case 0xb8:                         /* Right ALT */
313
        if (ev->type == SDL_KEYUP)
314
            modifiers_state[keycode] = 0;
315
        else
316
            modifiers_state[keycode] = 1;
317
        break;
318
    case 0x45: /* num lock */
319
    case 0x3a: /* caps lock */
320
        /* SDL does not send the key up event, so we generate it */
321
        kbd_put_keycode(keycode);
322
        kbd_put_keycode(keycode | 0x80);
323
        return;
324
    }
325

    
326
    /* now send the key code */
327
    if (keycode & 0x80)
328
        kbd_put_keycode(0xe0);
329
    if (ev->type == SDL_KEYUP)
330
        kbd_put_keycode(keycode | 0x80);
331
    else
332
        kbd_put_keycode(keycode & 0x7f);
333
}
334

    
335
static void sdl_update_caption(void)
336
{
337
    char buf[1024];
338
    strcpy(buf, "QEMU");
339
    if (!vm_running) {
340
        strcat(buf, " [Stopped]");
341
    }
342
    if (gui_grab) {
343
        strcat(buf, " - Press Ctrl-Shift to exit grab");
344
    }
345
    SDL_WM_SetCaption(buf, "QEMU");
346
}
347

    
348
static void sdl_grab_start(void)
349
{
350
    SDL_ShowCursor(0);
351
    SDL_WM_GrabInput(SDL_GRAB_ON);
352
    /* dummy read to avoid moving the mouse */
353
    SDL_GetRelativeMouseState(NULL, NULL);
354
    gui_grab = 1;
355
    sdl_update_caption();
356
}
357

    
358
static void sdl_grab_end(void)
359
{
360
    SDL_WM_GrabInput(SDL_GRAB_OFF);
361
    SDL_ShowCursor(1);
362
    gui_grab = 0;
363
    sdl_update_caption();
364
}
365

    
366
static void sdl_send_mouse_event(void)
367
{
368
    int dx, dy, dz, state, buttons;
369
    state = SDL_GetRelativeMouseState(&dx, &dy);
370
    buttons = 0;
371
    if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
372
        buttons |= MOUSE_EVENT_LBUTTON;
373
    if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
374
        buttons |= MOUSE_EVENT_RBUTTON;
375
    if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
376
        buttons |= MOUSE_EVENT_MBUTTON;
377
    /* XXX: test wheel */
378
    dz = 0;
379
#ifdef SDL_BUTTON_WHEELUP
380
    if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
381
        dz--;
382
    if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
383
        dz++;
384
#endif
385
    kbd_mouse_event(dx, dy, dz, buttons);
386
}
387

    
388
static void toggle_full_screen(DisplayState *ds)
389
{
390
    gui_fullscreen = !gui_fullscreen;
391
    sdl_resize(ds, screen->w, screen->h);
392
    if (gui_fullscreen) {
393
        gui_saved_grab = gui_grab;
394
        sdl_grab_start();
395
    } else {
396
        if (!gui_saved_grab)
397
            sdl_grab_end();
398
    }
399
    vga_invalidate_display();
400
    vga_update_display();
401
}
402

    
403
static void sdl_refresh(DisplayState *ds)
404
{
405
    SDL_Event ev1, *ev = &ev1;
406
    int mod_state;
407
                     
408
    if (last_vm_running != vm_running) {
409
        last_vm_running = vm_running;
410
        sdl_update_caption();
411
    }
412

    
413
    if (is_active_console(vga_console)) 
414
        vga_update_display();
415

    
416
    while (SDL_PollEvent(ev)) {
417
        switch (ev->type) {
418
        case SDL_VIDEOEXPOSE:
419
            sdl_update(ds, 0, 0, screen->w, screen->h);
420
            break;
421
        case SDL_KEYDOWN:
422
        case SDL_KEYUP:
423
            if (ev->type == SDL_KEYDOWN) {
424
                mod_state = (SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL)) ==
425
                    (KMOD_LSHIFT | KMOD_LCTRL);
426
                gui_key_modifier_pressed = mod_state;
427
                if (gui_key_modifier_pressed) {
428
                    switch(ev->key.keysym.sym) {
429
                    case SDLK_f:
430
                        toggle_full_screen(ds);
431
                        gui_keysym = 1;
432
                        break;
433
                    case SDLK_F1 ... SDLK_F12:
434
                        console_select(ev->key.keysym.sym - SDLK_F1);
435
                        if (is_active_console(vga_console)) {
436
                            /* tell the vga console to redisplay itself */
437
                            vga_invalidate_display();
438
                        } else {
439
                            /* display grab if going to a text console */
440
                            if (gui_grab)
441
                                sdl_grab_end();
442
                        }
443
                        gui_keysym = 1;
444
                        break;
445
                    default:
446
                        break;
447
                    }
448
                }
449
                if (!is_active_console(vga_console)) {
450
                    int keysym;
451
                    keysym = 0;
452
                    if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
453
                        switch(ev->key.keysym.sym) {
454
                        case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
455
                        case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
456
                        case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
457
                        case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
458
                        case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
459
                        case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
460
                        case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
461
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
462
                        default: break;
463
                        }
464
                    } else {
465
                        switch(ev->key.keysym.sym) {
466
                        case SDLK_UP: keysym = QEMU_KEY_UP; break;
467
                        case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
468
                        case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
469
                        case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
470
                        case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
471
                        case SDLK_END: keysym = QEMU_KEY_END; break;
472
                        case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
473
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
474
                        case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;                        case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
475
                        default: break;
476
                        }
477
                    }
478
                    if (keysym) {
479
                        kbd_put_keysym(keysym);
480
                    } else if (ev->key.keysym.unicode != 0) {
481
                        kbd_put_keysym(ev->key.keysym.unicode);
482
                    }
483
                }
484
            } else if (ev->type == SDL_KEYUP) {
485
                mod_state = (SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL));
486
                if (!mod_state) {
487
                    if (gui_key_modifier_pressed) {
488
                        if (gui_keysym == 0) {
489
                            /* exit/enter grab if pressing Ctrl-Shift */
490
                            if (!gui_grab)
491
                                sdl_grab_start();
492
                            else
493
                                sdl_grab_end();
494
                            break;
495
                        }
496
                        gui_key_modifier_pressed = 0;
497
                        gui_keysym = 0;
498
                    }
499
                }
500
            }
501
            if (is_active_console(vga_console)) 
502
                sdl_process_key(&ev->key);
503
            break;
504
        case SDL_QUIT:
505
            qemu_system_shutdown_request();
506
            break;
507
        case SDL_MOUSEMOTION:
508
            if (gui_grab) {
509
                sdl_send_mouse_event();
510
            }
511
            break;
512
        case SDL_MOUSEBUTTONDOWN:
513
        case SDL_MOUSEBUTTONUP:
514
            {
515
                SDL_MouseButtonEvent *bev = &ev->button;
516
                if (!gui_grab) {
517
                    if (ev->type == SDL_MOUSEBUTTONDOWN &&
518
                        (bev->state & SDL_BUTTON_LMASK)) {
519
                        /* start grabbing all events */
520
                        sdl_grab_start();
521
                    }
522
                } else {
523
                    sdl_send_mouse_event();
524
                }
525
            }
526
            break;
527
        case SDL_ACTIVEEVENT:
528
            if (gui_grab && (ev->active.gain & SDL_ACTIVEEVENTMASK) == 0) {
529
                sdl_grab_end();
530
            }
531
            break;
532
        default:
533
            break;
534
        }
535
    }
536
}
537

    
538
static void sdl_cleanup(void) 
539
{
540
    SDL_Quit();
541
}
542

    
543
void sdl_display_init(DisplayState *ds)
544
{
545
    int flags;
546

    
547
    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
548
    if (SDL_Init (flags)) {
549
        fprintf(stderr, "Could not initialize SDL - exiting\n");
550
        exit(1);
551
    }
552
#ifndef _WIN32
553
    /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
554
    signal(SIGINT, SIG_DFL);
555
    signal(SIGQUIT, SIG_DFL);
556
#endif
557

    
558
    ds->dpy_update = sdl_update;
559
    ds->dpy_resize = sdl_resize;
560
    ds->dpy_refresh = sdl_refresh;
561

    
562
    sdl_resize(ds, 640, 400);
563
    sdl_update_caption();
564
    SDL_EnableKeyRepeat(250, 50);
565
    SDL_EnableUNICODE(1);
566
    gui_grab = 0;
567

    
568
    atexit(sdl_cleanup);
569
}