| 1 |
/* |
| 2 |
* Display_SDL.h - C64 graphics display, emulator window handling, |
| 3 |
* SDL specific stuff |
| 4 |
* |
| 5 |
* Frodo (C) 1994-1997,2002-2005 Christian Bauer |
| 6 |
* |
| 7 |
* This program is free software; you can redistribute it and/or modify |
| 8 |
* it under the terms of the GNU General Public License as published by |
| 9 |
* the Free Software Foundation; either version 2 of the License, or |
| 10 |
* (at your option) any later version. |
| 11 |
* |
| 12 |
* This program is distributed in the hope that it will be useful, |
| 13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 |
* GNU General Public License for more details. |
| 16 |
* |
| 17 |
* You should have received a copy of the GNU General Public License |
| 18 |
* along with this program; if not, write to the Free Software |
| 19 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 |
*/ |
| 21 |
|
| 22 |
#include "C64.h" |
| 23 |
#include "SAM.h" |
| 24 |
#include "Version.h" |
| 25 |
|
| 26 |
#include <SDL.h> |
| 27 |
|
| 28 |
|
| 29 |
// Display surface |
| 30 |
static SDL_Surface *screen = NULL; |
| 31 |
|
| 32 |
// Keyboard |
| 33 |
static bool num_locked = false; |
| 34 |
|
| 35 |
// For LED error blinking |
| 36 |
static C64Display *c64_disp; |
| 37 |
static struct sigaction pulse_sa; |
| 38 |
static itimerval pulse_tv; |
| 39 |
|
| 40 |
// SDL joysticks |
| 41 |
static SDL_Joystick *joy[2] = {NULL, NULL}; |
| 42 |
|
| 43 |
// Colors for speedometer/drive LEDs |
| 44 |
enum { |
| 45 |
black = 0, |
| 46 |
white = 1, |
| 47 |
fill_gray = 16, |
| 48 |
shine_gray = 17, |
| 49 |
shadow_gray = 18, |
| 50 |
red = 19, |
| 51 |
green = 20, |
| 52 |
PALETTE_SIZE = 21 |
| 53 |
}; |
| 54 |
|
| 55 |
/* |
| 56 |
C64 keyboard matrix: |
| 57 |
|
| 58 |
Bit 7 6 5 4 3 2 1 0 |
| 59 |
0 CUD F5 F3 F1 F7 CLR RET DEL |
| 60 |
1 SHL E S Z 4 A W 3 |
| 61 |
2 X T F C 6 D R 5 |
| 62 |
3 V U H B 8 G Y 7 |
| 63 |
4 N O K M 0 J I 9 |
| 64 |
5 , @ : . - L P + |
| 65 |
6 / ^ = SHR HOM ; * £ |
| 66 |
7 R/S Q C= SPC 2 CTL <- 1 |
| 67 |
*/ |
| 68 |
|
| 69 |
#define MATRIX(a,b) (((a) << 3) | (b)) |
| 70 |
|
| 71 |
|
| 72 |
/* |
| 73 |
* Open window |
| 74 |
*/ |
| 75 |
|
| 76 |
int init_graphics(void) |
| 77 |
{ |
| 78 |
// Init SDL |
| 79 |
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) { |
| 80 |
fprintf(stderr, "Couldn't initialize SDL (%s)\n", SDL_GetError()); |
| 81 |
return 0; |
| 82 |
} |
| 83 |
|
| 84 |
return 1; |
| 85 |
} |
| 86 |
|
| 87 |
|
| 88 |
/* |
| 89 |
* Display constructor |
| 90 |
*/ |
| 91 |
|
| 92 |
C64Display::C64Display(C64 *the_c64) : TheC64(the_c64) |
| 93 |
{ |
| 94 |
quit_requested = false; |
| 95 |
speedometer_string[0] = 0; |
| 96 |
|
| 97 |
// Open window |
| 98 |
SDL_WM_SetCaption(VERSION_STRING, "Frodo"); |
| 99 |
screen = SDL_SetVideoMode(DISPLAY_X, DISPLAY_Y + 17, 8, SDL_DOUBLEBUF | (ThePrefs.DisplayType == DISPTYPE_SCREEN ? SDL_FULLSCREEN : 0)); |
| 100 |
|
| 101 |
// LEDs off |
| 102 |
for (int i=0; i<4; i++) |
| 103 |
led_state[i] = old_led_state[i] = LED_OFF; |
| 104 |
|
| 105 |
// Start timer for LED error blinking |
| 106 |
c64_disp = this; |
| 107 |
pulse_sa.sa_handler = (void (*)(int))pulse_handler; |
| 108 |
pulse_sa.sa_flags = SA_RESTART; |
| 109 |
sigemptyset(&pulse_sa.sa_mask); |
| 110 |
sigaction(SIGALRM, &pulse_sa, NULL); |
| 111 |
pulse_tv.it_interval.tv_sec = 0; |
| 112 |
pulse_tv.it_interval.tv_usec = 400000; |
| 113 |
pulse_tv.it_value.tv_sec = 0; |
| 114 |
pulse_tv.it_value.tv_usec = 400000; |
| 115 |
setitimer(ITIMER_REAL, &pulse_tv, NULL); |
| 116 |
} |
| 117 |
|
| 118 |
|
| 119 |
/* |
| 120 |
* Display destructor |
| 121 |
*/ |
| 122 |
|
| 123 |
C64Display::~C64Display() |
| 124 |
{ |
| 125 |
SDL_Quit(); |
| 126 |
} |
| 127 |
|
| 128 |
|
| 129 |
/* |
| 130 |
* Prefs may have changed |
| 131 |
*/ |
| 132 |
|
| 133 |
void C64Display::NewPrefs(Prefs *prefs) |
| 134 |
{ |
| 135 |
} |
| 136 |
|
| 137 |
|
| 138 |
/* |
| 139 |
* Redraw bitmap |
| 140 |
*/ |
| 141 |
|
| 142 |
void C64Display::Update(void) |
| 143 |
{ |
| 144 |
// Draw speedometer/LEDs |
| 145 |
SDL_Rect r = {0, DISPLAY_Y, DISPLAY_X, 15}; |
| 146 |
SDL_FillRect(screen, &r, fill_gray); |
| 147 |
r.w = DISPLAY_X; r.h = 1; |
| 148 |
SDL_FillRect(screen, &r, shine_gray); |
| 149 |
r.y = DISPLAY_Y + 14; |
| 150 |
SDL_FillRect(screen, &r, shadow_gray); |
| 151 |
r.w = 16; |
| 152 |
for (int i=2; i<6; i++) { |
| 153 |
r.x = DISPLAY_X * i/5 - 24; r.y = DISPLAY_Y + 4; |
| 154 |
SDL_FillRect(screen, &r, shadow_gray); |
| 155 |
r.y = DISPLAY_Y + 10; |
| 156 |
SDL_FillRect(screen, &r, shine_gray); |
| 157 |
} |
| 158 |
r.y = DISPLAY_Y; r.w = 1; r.h = 15; |
| 159 |
for (int i=0; i<5; i++) { |
| 160 |
r.x = DISPLAY_X * i / 5; |
| 161 |
SDL_FillRect(screen, &r, shine_gray); |
| 162 |
r.x = DISPLAY_X * (i+1) / 5 - 1; |
| 163 |
SDL_FillRect(screen, &r, shadow_gray); |
| 164 |
} |
| 165 |
r.y = DISPLAY_Y + 4; r.h = 7; |
| 166 |
for (int i=2; i<6; i++) { |
| 167 |
r.x = DISPLAY_X * i/5 - 24; |
| 168 |
SDL_FillRect(screen, &r, shadow_gray); |
| 169 |
r.x = DISPLAY_X * i/5 - 9; |
| 170 |
SDL_FillRect(screen, &r, shine_gray); |
| 171 |
} |
| 172 |
r.y = DISPLAY_Y + 5; r.w = 14; r.h = 5; |
| 173 |
for (int i=0; i<4; i++) { |
| 174 |
r.x = DISPLAY_X * (i+2) / 5 - 23; |
| 175 |
int c; |
| 176 |
switch (led_state[i]) { |
| 177 |
case LED_ON: |
| 178 |
c = green; |
| 179 |
break; |
| 180 |
case LED_ERROR_ON: |
| 181 |
c = red; |
| 182 |
break; |
| 183 |
default: |
| 184 |
c = black; |
| 185 |
break; |
| 186 |
} |
| 187 |
SDL_FillRect(screen, &r, c); |
| 188 |
} |
| 189 |
|
| 190 |
draw_string(screen, DISPLAY_X * 1/5 + 8, DISPLAY_Y + 4, "D\x12 8", black, fill_gray); |
| 191 |
draw_string(screen, DISPLAY_X * 2/5 + 8, DISPLAY_Y + 4, "D\x12 9", black, fill_gray); |
| 192 |
draw_string(screen, DISPLAY_X * 3/5 + 8, DISPLAY_Y + 4, "D\x12 10", black, fill_gray); |
| 193 |
draw_string(screen, DISPLAY_X * 4/5 + 8, DISPLAY_Y + 4, "D\x12 11", black, fill_gray); |
| 194 |
draw_string(screen, 24, DISPLAY_Y + 4, speedometer_string, black, fill_gray); |
| 195 |
|
| 196 |
// Update display |
| 197 |
SDL_Flip(screen); |
| 198 |
} |
| 199 |
|
| 200 |
|
| 201 |
/* |
| 202 |
* Draw string into surface using the C64 ROM font |
| 203 |
*/ |
| 204 |
|
| 205 |
void C64Display::draw_string(SDL_Surface *s, int x, int y, const char *str, uint8 front_color, uint8 back_color) |
| 206 |
{ |
| 207 |
uint8 *pb = (uint8 *)s->pixels + s->pitch*y + x; |
| 208 |
char c; |
| 209 |
while ((c = *str++) != 0) { |
| 210 |
uint8 *q = TheC64->Char + c*8 + 0x800; |
| 211 |
uint8 *p = pb; |
| 212 |
for (int y=0; y<8; y++) { |
| 213 |
uint8 v = *q++; |
| 214 |
p[0] = (v & 0x80) ? front_color : back_color; |
| 215 |
p[1] = (v & 0x40) ? front_color : back_color; |
| 216 |
p[2] = (v & 0x20) ? front_color : back_color; |
| 217 |
p[3] = (v & 0x10) ? front_color : back_color; |
| 218 |
p[4] = (v & 0x08) ? front_color : back_color; |
| 219 |
p[5] = (v & 0x04) ? front_color : back_color; |
| 220 |
p[6] = (v & 0x02) ? front_color : back_color; |
| 221 |
p[7] = (v & 0x01) ? front_color : back_color; |
| 222 |
p += s->pitch; |
| 223 |
} |
| 224 |
pb += 8; |
| 225 |
} |
| 226 |
} |
| 227 |
|
| 228 |
|
| 229 |
/* |
| 230 |
* LED error blink |
| 231 |
*/ |
| 232 |
|
| 233 |
void C64Display::pulse_handler(...) |
| 234 |
{ |
| 235 |
for (int i=0; i<4; i++) |
| 236 |
switch (c64_disp->led_state[i]) { |
| 237 |
case LED_ERROR_ON: |
| 238 |
c64_disp->led_state[i] = LED_ERROR_OFF; |
| 239 |
break; |
| 240 |
case LED_ERROR_OFF: |
| 241 |
c64_disp->led_state[i] = LED_ERROR_ON; |
| 242 |
break; |
| 243 |
} |
| 244 |
} |
| 245 |
|
| 246 |
|
| 247 |
/* |
| 248 |
* Draw speedometer |
| 249 |
*/ |
| 250 |
|
| 251 |
void C64Display::Speedometer(int speed) |
| 252 |
{ |
| 253 |
static int delay = 0; |
| 254 |
|
| 255 |
if (delay >= 20) { |
| 256 |
delay = 0; |
| 257 |
sprintf(speedometer_string, "%d%%", speed); |
| 258 |
} else |
| 259 |
delay++; |
| 260 |
} |
| 261 |
|
| 262 |
|
| 263 |
/* |
| 264 |
* Return pointer to bitmap data |
| 265 |
*/ |
| 266 |
|
| 267 |
uint8 *C64Display::BitmapBase(void) |
| 268 |
{ |
| 269 |
return (uint8 *)screen->pixels; |
| 270 |
} |
| 271 |
|
| 272 |
|
| 273 |
/* |
| 274 |
* Return number of bytes per row |
| 275 |
*/ |
| 276 |
|
| 277 |
int C64Display::BitmapXMod(void) |
| 278 |
{ |
| 279 |
return screen->pitch; |
| 280 |
} |
| 281 |
|
| 282 |
|
| 283 |
/* |
| 284 |
* Poll the keyboard |
| 285 |
*/ |
| 286 |
|
| 287 |
static void translate_key(SDLKey key, bool key_up, uint8 *key_matrix, uint8 *rev_matrix, uint8 *joystick) |
| 288 |
{ |
| 289 |
int c64_key = -1; |
| 290 |
switch (key) { |
| 291 |
case SDLK_a: c64_key = MATRIX(1,2); break; |
| 292 |
case SDLK_b: c64_key = MATRIX(3,4); break; |
| 293 |
case SDLK_c: c64_key = MATRIX(2,4); break; |
| 294 |
case SDLK_d: c64_key = MATRIX(2,2); break; |
| 295 |
case SDLK_e: c64_key = MATRIX(1,6); break; |
| 296 |
case SDLK_f: c64_key = MATRIX(2,5); break; |
| 297 |
case SDLK_g: c64_key = MATRIX(3,2); break; |
| 298 |
case SDLK_h: c64_key = MATRIX(3,5); break; |
| 299 |
case SDLK_i: c64_key = MATRIX(4,1); break; |
| 300 |
case SDLK_j: c64_key = MATRIX(4,2); break; |
| 301 |
case SDLK_k: c64_key = MATRIX(4,5); break; |
| 302 |
case SDLK_l: c64_key = MATRIX(5,2); break; |
| 303 |
case SDLK_m: c64_key = MATRIX(4,4); break; |
| 304 |
case SDLK_n: c64_key = MATRIX(4,7); break; |
| 305 |
case SDLK_o: c64_key = MATRIX(4,6); break; |
| 306 |
case SDLK_p: c64_key = MATRIX(5,1); break; |
| 307 |
case SDLK_q: c64_key = MATRIX(7,6); break; |
| 308 |
case SDLK_r: c64_key = MATRIX(2,1); break; |
| 309 |
case SDLK_s: c64_key = MATRIX(1,5); break; |
| 310 |
case SDLK_t: c64_key = MATRIX(2,6); break; |
| 311 |
case SDLK_u: c64_key = MATRIX(3,6); break; |
| 312 |
case SDLK_v: c64_key = MATRIX(3,7); break; |
| 313 |
case SDLK_w: c64_key = MATRIX(1,1); break; |
| 314 |
case SDLK_x: c64_key = MATRIX(2,7); break; |
| 315 |
case SDLK_y: c64_key = MATRIX(3,1); break; |
| 316 |
case SDLK_z: c64_key = MATRIX(1,4); break; |
| 317 |
|
| 318 |
case SDLK_0: c64_key = MATRIX(4,3); break; |
| 319 |
case SDLK_1: c64_key = MATRIX(7,0); break; |
| 320 |
case SDLK_2: c64_key = MATRIX(7,3); break; |
| 321 |
case SDLK_3: c64_key = MATRIX(1,0); break; |
| 322 |
case SDLK_4: c64_key = MATRIX(1,3); break; |
| 323 |
case SDLK_5: c64_key = MATRIX(2,0); break; |
| 324 |
case SDLK_6: c64_key = MATRIX(2,3); break; |
| 325 |
case SDLK_7: c64_key = MATRIX(3,0); break; |
| 326 |
case SDLK_8: c64_key = MATRIX(3,3); break; |
| 327 |
case SDLK_9: c64_key = MATRIX(4,0); break; |
| 328 |
|
| 329 |
case SDLK_SPACE: c64_key = MATRIX(7,4); break; |
| 330 |
case SDLK_BACKQUOTE: c64_key = MATRIX(7,1); break; |
| 331 |
case SDLK_BACKSLASH: c64_key = MATRIX(6,6); break; |
| 332 |
case SDLK_COMMA: c64_key = MATRIX(5,7); break; |
| 333 |
case SDLK_PERIOD: c64_key = MATRIX(5,4); break; |
| 334 |
case SDLK_MINUS: c64_key = MATRIX(5,0); break; |
| 335 |
case SDLK_EQUALS: c64_key = MATRIX(5,3); break; |
| 336 |
case SDLK_LEFTBRACKET: c64_key = MATRIX(5,6); break; |
| 337 |
case SDLK_RIGHTBRACKET: c64_key = MATRIX(6,1); break; |
| 338 |
case SDLK_SEMICOLON: c64_key = MATRIX(5,5); break; |
| 339 |
case SDLK_QUOTE: c64_key = MATRIX(6,2); break; |
| 340 |
case SDLK_SLASH: c64_key = MATRIX(6,7); break; |
| 341 |
|
| 342 |
case SDLK_ESCAPE: c64_key = MATRIX(7,7); break; |
| 343 |
case SDLK_RETURN: c64_key = MATRIX(0,1); break; |
| 344 |
case SDLK_BACKSPACE: case SDLK_DELETE: c64_key = MATRIX(0,0); break; |
| 345 |
case SDLK_INSERT: c64_key = MATRIX(6,3); break; |
| 346 |
case SDLK_HOME: c64_key = MATRIX(6,3); break; |
| 347 |
case SDLK_END: c64_key = MATRIX(6,0); break; |
| 348 |
case SDLK_PAGEUP: c64_key = MATRIX(6,0); break; |
| 349 |
case SDLK_PAGEDOWN: c64_key = MATRIX(6,5); break; |
| 350 |
|
| 351 |
case SDLK_LCTRL: case SDLK_TAB: c64_key = MATRIX(7,2); break; |
| 352 |
case SDLK_RCTRL: c64_key = MATRIX(7,5); break; |
| 353 |
case SDLK_LSHIFT: c64_key = MATRIX(1,7); break; |
| 354 |
case SDLK_RSHIFT: c64_key = MATRIX(6,4); break; |
| 355 |
case SDLK_LALT: case SDLK_LMETA: c64_key = MATRIX(7,5); break; |
| 356 |
case SDLK_RALT: case SDLK_RMETA: c64_key = MATRIX(7,5); break; |
| 357 |
|
| 358 |
case SDLK_UP: c64_key = MATRIX(0,7)| 0x80; break; |
| 359 |
case SDLK_DOWN: c64_key = MATRIX(0,7); break; |
| 360 |
case SDLK_LEFT: c64_key = MATRIX(0,2) | 0x80; break; |
| 361 |
case SDLK_RIGHT: c64_key = MATRIX(0,2); break; |
| 362 |
|
| 363 |
case SDLK_F1: c64_key = MATRIX(0,4); break; |
| 364 |
case SDLK_F2: c64_key = MATRIX(0,4) | 0x80; break; |
| 365 |
case SDLK_F3: c64_key = MATRIX(0,5); break; |
| 366 |
case SDLK_F4: c64_key = MATRIX(0,5) | 0x80; break; |
| 367 |
case SDLK_F5: c64_key = MATRIX(0,6); break; |
| 368 |
case SDLK_F6: c64_key = MATRIX(0,6) | 0x80; break; |
| 369 |
case SDLK_F7: c64_key = MATRIX(0,3); break; |
| 370 |
case SDLK_F8: c64_key = MATRIX(0,3) | 0x80; break; |
| 371 |
|
| 372 |
case SDLK_KP0: case SDLK_KP5: c64_key = 0x10 | 0x40; break; |
| 373 |
case SDLK_KP1: c64_key = 0x06 | 0x40; break; |
| 374 |
case SDLK_KP2: c64_key = 0x02 | 0x40; break; |
| 375 |
case SDLK_KP3: c64_key = 0x0a | 0x40; break; |
| 376 |
case SDLK_KP4: c64_key = 0x04 | 0x40; break; |
| 377 |
case SDLK_KP6: c64_key = 0x08 | 0x40; break; |
| 378 |
case SDLK_KP7: c64_key = 0x05 | 0x40; break; |
| 379 |
case SDLK_KP8: c64_key = 0x01 | 0x40; break; |
| 380 |
case SDLK_KP9: c64_key = 0x09 | 0x40; break; |
| 381 |
|
| 382 |
case SDLK_KP_DIVIDE: c64_key = MATRIX(6,7); break; |
| 383 |
case SDLK_KP_ENTER: c64_key = MATRIX(0,1); break; |
| 384 |
default: break; |
| 385 |
} |
| 386 |
|
| 387 |
if (c64_key < 0) |
| 388 |
return; |
| 389 |
|
| 390 |
// Handle joystick emulation |
| 391 |
if (c64_key & 0x40) { |
| 392 |
c64_key &= 0x1f; |
| 393 |
if (key_up) |
| 394 |
*joystick |= c64_key; |
| 395 |
else |
| 396 |
*joystick &= ~c64_key; |
| 397 |
return; |
| 398 |
} |
| 399 |
|
| 400 |
// Handle other keys |
| 401 |
bool shifted = c64_key & 0x80; |
| 402 |
int c64_byte = (c64_key >> 3) & 7; |
| 403 |
int c64_bit = c64_key & 7; |
| 404 |
if (key_up) { |
| 405 |
if (shifted) { |
| 406 |
key_matrix[6] |= 0x10; |
| 407 |
rev_matrix[4] |= 0x40; |
| 408 |
} |
| 409 |
key_matrix[c64_byte] |= (1 << c64_bit); |
| 410 |
rev_matrix[c64_bit] |= (1 << c64_byte); |
| 411 |
} else { |
| 412 |
if (shifted) { |
| 413 |
key_matrix[6] &= 0xef; |
| 414 |
rev_matrix[4] &= 0xbf; |
| 415 |
} |
| 416 |
key_matrix[c64_byte] &= ~(1 << c64_bit); |
| 417 |
rev_matrix[c64_bit] &= ~(1 << c64_byte); |
| 418 |
} |
| 419 |
} |
| 420 |
|
| 421 |
void C64Display::PollKeyboard(uint8 *key_matrix, uint8 *rev_matrix, uint8 *joystick) |
| 422 |
{ |
| 423 |
SDL_Event event; |
| 424 |
while (SDL_PollEvent(&event)) { |
| 425 |
switch (event.type) { |
| 426 |
|
| 427 |
// Key pressed |
| 428 |
case SDL_KEYDOWN: |
| 429 |
switch (event.key.keysym.sym) { |
| 430 |
|
| 431 |
case SDLK_F9: // F9: Invoke SAM |
| 432 |
SAM(TheC64); |
| 433 |
break; |
| 434 |
|
| 435 |
case SDLK_F10: // F10: Quit |
| 436 |
quit_requested = true; |
| 437 |
break; |
| 438 |
|
| 439 |
case SDLK_F11: // F11: NMI (Restore) |
| 440 |
TheC64->NMI(); |
| 441 |
break; |
| 442 |
|
| 443 |
case SDLK_F12: // F12: Reset |
| 444 |
TheC64->Reset(); |
| 445 |
break; |
| 446 |
|
| 447 |
case SDLK_NUMLOCK: |
| 448 |
num_locked = true; |
| 449 |
break; |
| 450 |
|
| 451 |
case SDLK_KP_PLUS: // '+' on keypad: Increase SkipFrames |
| 452 |
ThePrefs.SkipFrames++; |
| 453 |
break; |
| 454 |
|
| 455 |
case SDLK_KP_MINUS: // '-' on keypad: Decrease SkipFrames |
| 456 |
if (ThePrefs.SkipFrames > 1) |
| 457 |
ThePrefs.SkipFrames--; |
| 458 |
break; |
| 459 |
|
| 460 |
case SDLK_KP_MULTIPLY: // '*' on keypad: Toggle speed limiter |
| 461 |
ThePrefs.LimitSpeed = !ThePrefs.LimitSpeed; |
| 462 |
break; |
| 463 |
|
| 464 |
default: |
| 465 |
translate_key(event.key.keysym.sym, false, key_matrix, rev_matrix, joystick); |
| 466 |
break; |
| 467 |
} |
| 468 |
break; |
| 469 |
|
| 470 |
// Key released |
| 471 |
case SDL_KEYUP: |
| 472 |
if (event.key.keysym.sym == SDLK_NUMLOCK) |
| 473 |
num_locked = false; |
| 474 |
else |
| 475 |
translate_key(event.key.keysym.sym, true, key_matrix, rev_matrix, joystick); |
| 476 |
break; |
| 477 |
|
| 478 |
// Quit Frodo |
| 479 |
case SDL_QUIT: |
| 480 |
quit_requested = true; |
| 481 |
break; |
| 482 |
} |
| 483 |
} |
| 484 |
} |
| 485 |
|
| 486 |
|
| 487 |
/* |
| 488 |
* Check if NumLock is down (for switching the joystick keyboard emulation) |
| 489 |
*/ |
| 490 |
|
| 491 |
bool C64Display::NumLock(void) |
| 492 |
{ |
| 493 |
return num_locked; |
| 494 |
} |
| 495 |
|
| 496 |
|
| 497 |
/* |
| 498 |
* Open/close joystick drivers given old and new state of |
| 499 |
* joystick preferences |
| 500 |
*/ |
| 501 |
|
| 502 |
void C64::open_close_joystick(int port, int oldjoy, int newjoy) |
| 503 |
{ |
| 504 |
if (oldjoy != newjoy) { |
| 505 |
joy_minx[port] = joy_miny[port] = 32767; // Reset calibration |
| 506 |
joy_maxx[port] = joy_maxy[port] = -32768; |
| 507 |
if (newjoy) { |
| 508 |
joy[port] = SDL_JoystickOpen(newjoy - 1); |
| 509 |
if (joy[port] == NULL) |
| 510 |
fprintf(stderr, "Couldn't open joystick %d\n", port + 1); |
| 511 |
} else { |
| 512 |
if (joy[port]) { |
| 513 |
SDL_JoystickClose(joy[port]); |
| 514 |
joy[port] = NULL; |
| 515 |
} |
| 516 |
} |
| 517 |
} |
| 518 |
} |
| 519 |
|
| 520 |
void C64::open_close_joysticks(int oldjoy1, int oldjoy2, int newjoy1, int newjoy2) |
| 521 |
{ |
| 522 |
open_close_joystick(0, oldjoy1, newjoy1); |
| 523 |
open_close_joystick(1, oldjoy2, newjoy2); |
| 524 |
} |
| 525 |
|
| 526 |
|
| 527 |
/* |
| 528 |
* Poll joystick port, return CIA mask |
| 529 |
*/ |
| 530 |
|
| 531 |
uint8 C64::poll_joystick(int port) |
| 532 |
{ |
| 533 |
uint8 j = 0xff; |
| 534 |
|
| 535 |
if (port == 0 && (joy[0] || joy[1])) |
| 536 |
SDL_JoystickUpdate(); |
| 537 |
|
| 538 |
if (joy[port]) { |
| 539 |
int x = SDL_JoystickGetAxis(joy[port], 0), y = SDL_JoystickGetAxis(joy[port], 1); |
| 540 |
|
| 541 |
if (x > joy_maxx[port]) |
| 542 |
joy_maxx[port] = x; |
| 543 |
if (x < joy_minx[port]) |
| 544 |
joy_minx[port] = x; |
| 545 |
if (y > joy_maxy[port]) |
| 546 |
joy_maxy[port] = y; |
| 547 |
if (y < joy_miny[port]) |
| 548 |
joy_miny[port] = y; |
| 549 |
|
| 550 |
if (joy_maxx[port] - joy_minx[port] < 100 || joy_maxy[port] - joy_miny[port] < 100) |
| 551 |
return 0xff; |
| 552 |
|
| 553 |
if (x < (joy_minx[port] + (joy_maxx[port]-joy_minx[port])/3)) |
| 554 |
j &= 0xfb; // Left |
| 555 |
else if (x > (joy_minx[port] + 2*(joy_maxx[port]-joy_minx[port])/3)) |
| 556 |
j &= 0xf7; // Right |
| 557 |
|
| 558 |
if (y < (joy_miny[port] + (joy_maxy[port]-joy_miny[port])/3)) |
| 559 |
j &= 0xfe; // Up |
| 560 |
else if (y > (joy_miny[port] + 2*(joy_maxy[port]-joy_miny[port])/3)) |
| 561 |
j &= 0xfd; // Down |
| 562 |
|
| 563 |
if (SDL_JoystickGetButton(joy[port], 0)) |
| 564 |
j &= 0xef; // Button |
| 565 |
} |
| 566 |
|
| 567 |
return j; |
| 568 |
} |
| 569 |
|
| 570 |
|
| 571 |
/* |
| 572 |
* Allocate C64 colors |
| 573 |
*/ |
| 574 |
|
| 575 |
void C64Display::InitColors(uint8 *colors) |
| 576 |
{ |
| 577 |
SDL_Color palette[PALETTE_SIZE]; |
| 578 |
for (int i=0; i<16; i++) { |
| 579 |
palette[i].r = palette_red[i]; |
| 580 |
palette[i].g = palette_green[i]; |
| 581 |
palette[i].b = palette_blue[i]; |
| 582 |
} |
| 583 |
palette[fill_gray].r = palette[fill_gray].g = palette[fill_gray].b = 0xd0; |
| 584 |
palette[shine_gray].r = palette[shine_gray].g = palette[shine_gray].b = 0xf0; |
| 585 |
palette[shadow_gray].r = palette[shadow_gray].g = palette[shadow_gray].b = 0x80; |
| 586 |
palette[red].r = 0xf0; |
| 587 |
palette[red].g = palette[red].b = 0; |
| 588 |
palette[green].g = 0xf0; |
| 589 |
palette[green].r = palette[green].b = 0; |
| 590 |
SDL_SetColors(screen, palette, 0, PALETTE_SIZE); |
| 591 |
|
| 592 |
for (int i=0; i<256; i++) |
| 593 |
colors[i] = i & 0x0f; |
| 594 |
} |
| 595 |
|
| 596 |
|
| 597 |
/* |
| 598 |
* Show a requester (error message) |
| 599 |
*/ |
| 600 |
|
| 601 |
long int ShowRequester(char *a,char *b,char *) |
| 602 |
{ |
| 603 |
printf("%s: %s\n", a, b); |
| 604 |
return 1; |
| 605 |
} |
