| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Library General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Library General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Library General Public |
| 16 | License along with this library; if not, write to the Free |
| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #include "SDL_QuartzVideo.h" |
| 25 | #include "SDL_QuartzWM.h" |
| 26 | |
| 27 | |
| 28 | void QZ_FreeWMCursor (_THIS, WMcursor *cursor) { |
| 29 | |
| 30 | if ( cursor != NULL ) { |
| 31 | [ cursor->nscursor release ]; |
| 32 | free (cursor); |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | WMcursor* QZ_CreateWMCursor (_THIS, Uint8 *data, Uint8 *mask, |
| 37 | int w, int h, int hot_x, int hot_y) { |
| 38 | WMcursor *cursor; |
| 39 | NSBitmapImageRep *imgrep; |
| 40 | NSImage *img; |
| 41 | unsigned char *planes[5]; |
| 42 | int i; |
| 43 | NSAutoreleasePool *pool; |
| 44 | |
| 45 | pool = [ [ NSAutoreleasePool alloc ] init ]; |
| 46 | |
| 47 | /* Allocate the cursor memory */ |
| 48 | cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); |
| 49 | if (cursor == NULL) goto outOfMemory; |
| 50 | |
| 51 | /* create the image representation and get the pointers to its storage */ |
| 52 | imgrep = [ [ [ NSBitmapImageRep alloc ] initWithBitmapDataPlanes: NULL pixelsWide: w pixelsHigh: h bitsPerSample: 1 samplesPerPixel: 2 hasAlpha: YES isPlanar: YES colorSpaceName: NSDeviceBlackColorSpace bytesPerRow: (w+7)/8 bitsPerPixel: 0 ] autorelease ]; |
| 53 | if (imgrep == nil) goto outOfMemory; |
| 54 | [ imgrep getBitmapDataPlanes: planes ]; |
| 55 | |
| 56 | /* copy data and mask, extending the mask to all black pixels because the inversion effect doesn't work with Cocoa's alpha-blended cursors */ |
| 57 | for (i = 0; i < (w+7)/8*h; i++) { |
| 58 | planes[0][i] = data[i]; |
| 59 | planes[1][i] = mask[i] | data[i]; |
| 60 | } |
| 61 | |
| 62 | /* create image and cursor */ |
| 63 | img = [ [ [ NSImage alloc ] initWithSize: NSMakeSize(w, h) ] autorelease ]; |
| 64 | if (img == nil) goto outOfMemory; |
| 65 | [ img addRepresentation: imgrep ]; |
| 66 | if (system_version < 0x1030) { /* on 10.2, cursors must be 16*16 */ |
| 67 | if (w > 16 || h > 16) { /* too big: scale it down */ |
| 68 | [ img setScalesWhenResized: YES ]; |
| 69 | hot_x = hot_x*16/w; |
| 70 | hot_y = hot_y*16/h; |
| 71 | } |
| 72 | else { /* too small (or just right): extend it (from the bottom left corner, so hot_y must be adjusted) */ |
| 73 | hot_y += 16 - h; |
| 74 | } |
| 75 | [ img setSize: NSMakeSize(16, 16) ]; |
| 76 | } |
| 77 | cursor->nscursor = [ [ NSCursor alloc ] initWithImage: img hotSpot: NSMakePoint(hot_x, hot_y) ]; |
| 78 | if (cursor->nscursor == nil) goto outOfMemory; |
| 79 | |
| 80 | [ pool release ]; |
| 81 | return(cursor); |
| 82 | |
| 83 | outOfMemory: |
| 84 | [ pool release ]; |
| 85 | if (cursor != NULL) SDL_free(cursor); |
| 86 | SDL_OutOfMemory(); |
| 87 | return(NULL); |
| 88 | } |
| 89 | |
| 90 | void QZ_UpdateCursor (_THIS) { |
| 91 | BOOL state; |
| 92 | |
| 93 | if (cursor_should_be_visible || !(SDL_GetAppState() & SDL_APPMOUSEFOCUS)) { |
| 94 | state = YES; |
| 95 | } else { |
| 96 | state = NO; |
| 97 | } |
| 98 | if (state != cursor_visible) { |
| 99 | if (state) { |
| 100 | [ NSCursor unhide ]; |
| 101 | } else { |
| 102 | [ NSCursor hide ]; |
| 103 | } |
| 104 | cursor_visible = state; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | BOOL QZ_IsMouseInWindow (_THIS) { |
| 109 | if (qz_window == nil || (mode_flags & SDL_FULLSCREEN)) return YES; /*fullscreen*/ |
| 110 | else { |
| 111 | NSPoint p = [ qz_window mouseLocationOutsideOfEventStream ]; |
| 112 | p.y -= 1.0f; /* Apparently y goes from 1 to h, not from 0 to h-1 (i.e. the "location of the mouse" seems to be defined as "the location of the top left corner of the mouse pointer's hot pixel" */ |
| 113 | return NSPointInRect(p, [ window_view frame ]); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | int QZ_ShowWMCursor (_THIS, WMcursor *cursor) { |
| 118 | |
| 119 | if ( cursor == NULL) { |
| 120 | if ( cursor_should_be_visible ) { |
| 121 | cursor_should_be_visible = NO; |
| 122 | QZ_ChangeGrabState (this, QZ_HIDECURSOR); |
| 123 | } |
| 124 | QZ_UpdateCursor(this); |
| 125 | } |
| 126 | else { |
| 127 | if (qz_window ==nil || (mode_flags & SDL_FULLSCREEN)) { |
| 128 | [ cursor->nscursor set ]; |
| 129 | } |
| 130 | else { |
| 131 | [ qz_window invalidateCursorRectsForView: [ qz_window contentView ] ]; |
| 132 | } |
| 133 | if ( ! cursor_should_be_visible ) { |
| 134 | cursor_should_be_visible = YES; |
| 135 | QZ_ChangeGrabState (this, QZ_SHOWCURSOR); |
| 136 | } |
| 137 | QZ_UpdateCursor(this); |
| 138 | } |
| 139 | |
| 140 | return 1; |
| 141 | } |
| 142 | |
| 143 | /* |
| 144 | Coordinate conversion functions, for convenience |
| 145 | Cocoa sets the origin at the lower left corner of the window/screen |
| 146 | SDL, CoreGraphics/WindowServer, and QuickDraw use the origin at the upper left corner |
| 147 | The routines were written so they could be called before SetVideoMode() has finished; |
| 148 | this might have limited usefulness at the moment, but the extra cost is trivial. |
| 149 | */ |
| 150 | |
| 151 | /* Convert Cocoa screen coordinate to Cocoa window coordinate */ |
| 152 | void QZ_PrivateGlobalToLocal (_THIS, NSPoint *p) { |
| 153 | |
| 154 | *p = [ qz_window convertScreenToBase:*p ]; |
| 155 | } |
| 156 | |
| 157 | |
| 158 | /* Convert Cocoa window coordinate to Cocoa screen coordinate */ |
| 159 | void QZ_PrivateLocalToGlobal (_THIS, NSPoint *p) { |
| 160 | |
| 161 | *p = [ qz_window convertBaseToScreen:*p ]; |
| 162 | } |
| 163 | |
| 164 | /* Convert SDL coordinate to Cocoa coordinate */ |
| 165 | void QZ_PrivateSDLToCocoa (_THIS, NSPoint *p) { |
| 166 | |
| 167 | if ( CGDisplayIsCaptured (display_id) ) { /* capture signals fullscreen */ |
| 168 | |
| 169 | p->y = CGDisplayPixelsHigh (display_id) - p->y; |
| 170 | } |
| 171 | else { |
| 172 | |
| 173 | *p = [ window_view convertPoint:*p toView: nil ]; |
| 174 | p->y = [window_view frame].size.height - p->y; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | /* Convert Cocoa coordinate to SDL coordinate */ |
| 179 | void QZ_PrivateCocoaToSDL (_THIS, NSPoint *p) { |
| 180 | |
| 181 | if ( CGDisplayIsCaptured (display_id) ) { /* capture signals fullscreen */ |
| 182 | |
| 183 | p->y = CGDisplayPixelsHigh (display_id) - p->y; |
| 184 | } |
| 185 | else { |
| 186 | |
| 187 | *p = [ window_view convertPoint:*p fromView: nil ]; |
| 188 | p->y = [window_view frame].size.height - p->y; |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | /* Convert SDL coordinate to window server (CoreGraphics) coordinate */ |
| 193 | CGPoint QZ_PrivateSDLToCG (_THIS, NSPoint *p) { |
| 194 | |
| 195 | CGPoint cgp; |
| 196 | |
| 197 | if ( ! CGDisplayIsCaptured (display_id) ) { /* not captured => not fullscreen => local coord */ |
| 198 | |
| 199 | int height; |
| 200 | |
| 201 | QZ_PrivateSDLToCocoa (this, p); |
| 202 | QZ_PrivateLocalToGlobal (this, p); |
| 203 | |
| 204 | height = CGDisplayPixelsHigh (display_id); |
| 205 | p->y = height - p->y; |
| 206 | } |
| 207 | |
| 208 | cgp.x = p->x; |
| 209 | cgp.y = p->y; |
| 210 | |
| 211 | return cgp; |
| 212 | } |
| 213 | |
| 214 | #if 0 /* Dead code */ |
| 215 | /* Convert window server (CoreGraphics) coordinate to SDL coordinate */ |
| 216 | void QZ_PrivateCGToSDL (_THIS, NSPoint *p) { |
| 217 | |
| 218 | if ( ! CGDisplayIsCaptured (display_id) ) { /* not captured => not fullscreen => local coord */ |
| 219 | |
| 220 | int height; |
| 221 | |
| 222 | /* Convert CG Global to Cocoa Global */ |
| 223 | height = CGDisplayPixelsHigh (display_id); |
| 224 | p->y = height - p->y; |
| 225 | |
| 226 | QZ_PrivateGlobalToLocal (this, p); |
| 227 | QZ_PrivateCocoaToSDL (this, p); |
| 228 | } |
| 229 | } |
| 230 | #endif /* Dead code */ |
| 231 | |
| 232 | void QZ_PrivateWarpCursor (_THIS, int x, int y) { |
| 233 | |
| 234 | NSPoint p; |
| 235 | CGPoint cgp; |
| 236 | |
| 237 | p = NSMakePoint (x, y); |
| 238 | cgp = QZ_PrivateSDLToCG (this, &p); |
| 239 | |
| 240 | /* this is the magic call that fixes cursor "freezing" after warp */ |
| 241 | CGSetLocalEventsSuppressionInterval (0.0); |
| 242 | CGWarpMouseCursorPosition (cgp); |
| 243 | } |
| 244 | |
| 245 | void QZ_WarpWMCursor (_THIS, Uint16 x, Uint16 y) { |
| 246 | |
| 247 | /* Only allow warping when in foreground */ |
| 248 | if ( ! [ NSApp isActive ] ) |
| 249 | return; |
| 250 | |
| 251 | /* Do the actual warp */ |
| 252 | if (grab_state != QZ_INVISIBLE_GRAB) QZ_PrivateWarpCursor (this, x, y); |
| 253 | |
| 254 | /* Generate the mouse moved event */ |
| 255 | SDL_PrivateMouseMotion (0, 0, x, y); |
| 256 | } |
| 257 | |
| 258 | void QZ_MoveWMCursor (_THIS, int x, int y) { } |
| 259 | void QZ_CheckMouseMode (_THIS) { } |
| 260 | |
| 261 | void QZ_SetCaption (_THIS, const char *title, const char *icon) { |
| 262 | |
| 263 | if ( qz_window != nil ) { |
| 264 | NSString *string; |
| 265 | if ( title != NULL ) { |
| 266 | string = [ [ NSString alloc ] initWithUTF8String:title ]; |
| 267 | [ qz_window setTitle:string ]; |
| 268 | [ string release ]; |
| 269 | } |
| 270 | if ( icon != NULL ) { |
| 271 | string = [ [ NSString alloc ] initWithUTF8String:icon ]; |
| 272 | [ qz_window setMiniwindowTitle:string ]; |
| 273 | [ string release ]; |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | void QZ_SetIcon (_THIS, SDL_Surface *icon, Uint8 *mask) |
| 279 | { |
| 280 | NSBitmapImageRep *imgrep; |
| 281 | NSImage *img; |
| 282 | SDL_Surface *mergedSurface; |
| 283 | NSAutoreleasePool *pool; |
| 284 | Uint8 *pixels; |
| 285 | SDL_bool iconSrcAlpha; |
| 286 | Uint8 iconAlphaValue; |
| 287 | int i, j, maskPitch, index; |
| 288 | |
| 289 | pool = [ [ NSAutoreleasePool alloc ] init ]; |
| 290 | |
| 291 | imgrep = [ [ [ NSBitmapImageRep alloc ] initWithBitmapDataPlanes: NULL pixelsWide: icon->w pixelsHigh: icon->h bitsPerSample: 8 samplesPerPixel: 4 hasAlpha: YES isPlanar: NO colorSpaceName: NSDeviceRGBColorSpace bytesPerRow: 4*icon->w bitsPerPixel: 32 ] autorelease ]; |
| 292 | if (imgrep == nil) goto freePool; |
| 293 | pixels = [ imgrep bitmapData ]; |
| 294 | SDL_memset(pixels, 0, 4*icon->w*icon->h); /* make the background, which will survive in colorkeyed areas, completely transparent */ |
| 295 | |
| 296 | #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
| 297 | #define BYTEORDER_DEPENDENT_RGBA_MASKS 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
| 298 | #else |
| 299 | #define BYTEORDER_DEPENDENT_RGBA_MASKS 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
| 300 | #endif |
| 301 | mergedSurface = SDL_CreateRGBSurfaceFrom(pixels, icon->w, icon->h, 32, 4*icon->w, BYTEORDER_DEPENDENT_RGBA_MASKS); |
| 302 | if (mergedSurface == NULL) goto freePool; |
| 303 | |
| 304 | /* blit, with temporarily cleared SRCALPHA flag because we want to copy, not alpha-blend */ |
| 305 | iconSrcAlpha = ((icon->flags & SDL_SRCALPHA) != 0); |
| 306 | iconAlphaValue = icon->format->alpha; |
| 307 | SDL_SetAlpha(icon, 0, 255); |
| 308 | SDL_BlitSurface(icon, NULL, mergedSurface, NULL); |
| 309 | if (iconSrcAlpha) SDL_SetAlpha(icon, SDL_SRCALPHA, iconAlphaValue); |
| 310 | |
| 311 | SDL_FreeSurface(mergedSurface); |
| 312 | |
| 313 | /* apply mask, source alpha, and premultiply color values by alpha */ |
| 314 | maskPitch = (icon->w+7)/8; |
| 315 | for (i = 0; i < icon->h; i++) { |
| 316 | for (j = 0; j < icon->w; j++) { |
| 317 | index = i*4*icon->w + j*4; |
| 318 | if (!(mask[i*maskPitch + j/8] & (128 >> j%8))) { |
| 319 | pixels[index + 3] = 0; |
| 320 | } |
| 321 | else { |
| 322 | if (iconSrcAlpha) { |
| 323 | if (icon->format->Amask == 0) pixels[index + 3] = icon->format->alpha; |
| 324 | } |
| 325 | else { |
| 326 | pixels[index + 3] = 255; |
| 327 | } |
| 328 | } |
| 329 | if (pixels[index + 3] < 255) { |
| 330 | pixels[index + 0] = (Uint16)pixels[index + 0]*pixels[index + 3]/255; |
| 331 | pixels[index + 1] = (Uint16)pixels[index + 1]*pixels[index + 3]/255; |
| 332 | pixels[index + 2] = (Uint16)pixels[index + 2]*pixels[index + 3]/255; |
| 333 | } |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | img = [ [ [ NSImage alloc ] initWithSize: NSMakeSize(icon->w, icon->h) ] autorelease ]; |
| 338 | if (img == nil) goto freePool; |
| 339 | [ img addRepresentation: imgrep ]; |
| 340 | [ NSApp setApplicationIconImage:img ]; |
| 341 | |
| 342 | freePool: |
| 343 | [ pool release ]; |
| 344 | } |
| 345 | |
| 346 | int QZ_IconifyWindow (_THIS) { |
| 347 | |
| 348 | if ( ! [ qz_window isMiniaturized ] ) { |
| 349 | [ qz_window miniaturize:nil ]; |
| 350 | if ( ! [ qz_window isMiniaturized ] ) { |
| 351 | SDL_SetError ("window iconification failed"); |
| 352 | return 0; |
| 353 | } |
| 354 | return 1; |
| 355 | } |
| 356 | else { |
| 357 | SDL_SetError ("window already iconified"); |
| 358 | return 0; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | /* |
| 363 | int QZ_GetWMInfo (_THIS, SDL_SysWMinfo *info) { |
| 364 | info->nsWindowPtr = qz_window; |
| 365 | return 0; |
| 366 | }*/ |
| 367 | |
| 368 | void QZ_ChangeGrabState (_THIS, int action) { |
| 369 | |
| 370 | /* |
| 371 | Figure out what the next state should be based on the action. |
| 372 | Ignore actions that can't change the current state. |
| 373 | */ |
| 374 | if ( grab_state == QZ_UNGRABBED ) { |
| 375 | if ( action == QZ_ENABLE_GRAB ) { |
| 376 | if ( cursor_should_be_visible ) |
| 377 | grab_state = QZ_VISIBLE_GRAB; |
| 378 | else |
| 379 | grab_state = QZ_INVISIBLE_GRAB; |
| 380 | } |
| 381 | } |
| 382 | else if ( grab_state == QZ_VISIBLE_GRAB ) { |
| 383 | if ( action == QZ_DISABLE_GRAB ) |
| 384 | grab_state = QZ_UNGRABBED; |
| 385 | else if ( action == QZ_HIDECURSOR ) |
| 386 | grab_state = QZ_INVISIBLE_GRAB; |
| 387 | } |
| 388 | else { |
| 389 | assert( grab_state == QZ_INVISIBLE_GRAB ); |
| 390 | |
| 391 | if ( action == QZ_DISABLE_GRAB ) |
| 392 | grab_state = QZ_UNGRABBED; |
| 393 | else if ( action == QZ_SHOWCURSOR ) |
| 394 | grab_state = QZ_VISIBLE_GRAB; |
| 395 | } |
| 396 | |
| 397 | /* now apply the new state */ |
| 398 | if (grab_state == QZ_UNGRABBED) { |
| 399 | |
| 400 | CGAssociateMouseAndMouseCursorPosition (1); |
| 401 | } |
| 402 | else if (grab_state == QZ_VISIBLE_GRAB) { |
| 403 | |
| 404 | CGAssociateMouseAndMouseCursorPosition (1); |
| 405 | } |
| 406 | else { |
| 407 | assert( grab_state == QZ_INVISIBLE_GRAB ); |
| 408 | |
| 409 | QZ_PrivateWarpCursor (this, SDL_VideoSurface->w / 2, SDL_VideoSurface->h / 2); |
| 410 | CGAssociateMouseAndMouseCursorPosition (0); |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | SDL_GrabMode QZ_GrabInput (_THIS, SDL_GrabMode grab_mode) { |
| 415 | |
| 416 | int doGrab = grab_mode & SDL_GRAB_ON; |
| 417 | /*int fullscreen = grab_mode & SDL_GRAB_FULLSCREEN;*/ |
| 418 | |
| 419 | if ( this->screen == NULL ) { |
| 420 | SDL_SetError ("QZ_GrabInput: screen is NULL"); |
| 421 | return SDL_GRAB_OFF; |
| 422 | } |
| 423 | |
| 424 | if ( ! video_set ) { |
| 425 | /*SDL_SetError ("QZ_GrabInput: video is not set, grab will take effect on mode switch"); */ |
| 426 | current_grab_mode = grab_mode; |
| 427 | return grab_mode; /* Will be set later on mode switch */ |
| 428 | } |
| 429 | |
| 430 | if ( grab_mode != SDL_GRAB_QUERY ) { |
| 431 | if ( doGrab ) |
| 432 | QZ_ChangeGrabState (this, QZ_ENABLE_GRAB); |
| 433 | else |
| 434 | QZ_ChangeGrabState (this, QZ_DISABLE_GRAB); |
| 435 | |
| 436 | current_grab_mode = doGrab ? SDL_GRAB_ON : SDL_GRAB_OFF; |
| 437 | } |
| 438 | |
| 439 | return current_grab_mode; |
| 440 | } |