| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2003 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with this library; if not, write to the Free |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| #include "SDL_QuartzVideo.h" |
| #include "SDL_QuartzWM.h" |
| |
| void QZ_FreeWMCursor (_THIS, WMcursor *cursor) { |
| |
| if ( cursor != NULL ) { |
| [ cursor->nscursor release ]; |
| free (cursor); |
| } |
| } |
| |
| WMcursor* QZ_CreateWMCursor (_THIS, Uint8 *data, Uint8 *mask, |
| int w, int h, int hot_x, int hot_y) { |
| WMcursor *cursor; |
| NSBitmapImageRep *imgrep; |
| NSImage *img; |
| unsigned char *planes[5]; |
| int i; |
| NSAutoreleasePool *pool; |
| |
| pool = [ [ NSAutoreleasePool alloc ] init ]; |
| |
| /* Allocate the cursor memory */ |
| cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); |
| if (cursor == NULL) goto outOfMemory; |
| |
| /* create the image representation and get the pointers to its storage */ |
| 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 ]; |
| if (imgrep == nil) goto outOfMemory; |
| [ imgrep getBitmapDataPlanes: planes ]; |
| |
| /* copy data and mask, extending the mask to all black pixels because the inversion effect doesn't work with Cocoa's alpha-blended cursors */ |
| for (i = 0; i < (w+7)/8*h; i++) { |
| planes[0][i] = data[i]; |
| planes[1][i] = mask[i] | data[i]; |
| } |
| |
| /* create image and cursor */ |
| img = [ [ [ NSImage alloc ] initWithSize: NSMakeSize(w, h) ] autorelease ]; |
| if (img == nil) goto outOfMemory; |
| [ img addRepresentation: imgrep ]; |
| if (system_version < 0x1030) { /* on 10.2, cursors must be 16*16 */ |
| if (w > 16 || h > 16) { /* too big: scale it down */ |
| [ img setScalesWhenResized: YES ]; |
| hot_x = hot_x*16/w; |
| hot_y = hot_y*16/h; |
| } |
| else { /* too small (or just right): extend it (from the bottom left corner, so hot_y must be adjusted) */ |
| hot_y += 16 - h; |
| } |
| [ img setSize: NSMakeSize(16, 16) ]; |
| } |
| cursor->nscursor = [ [ NSCursor alloc ] initWithImage: img hotSpot: NSMakePoint(hot_x, hot_y) ]; |
| if (cursor->nscursor == nil) goto outOfMemory; |
| |
| [ pool release ]; |
| return(cursor); |
| |
| outOfMemory: |
| [ pool release ]; |
| if (cursor != NULL) SDL_free(cursor); |
| SDL_OutOfMemory(); |
| return(NULL); |
| } |
| |
| void QZ_UpdateCursor (_THIS) { |
| BOOL state; |
| |
| if (cursor_should_be_visible || !(SDL_GetAppState() & SDL_APPMOUSEFOCUS)) { |
| state = YES; |
| } else { |
| state = NO; |
| } |
| if (state != cursor_visible) { |
| if (state) { |
| [ NSCursor unhide ]; |
| } else { |
| [ NSCursor hide ]; |
| } |
| cursor_visible = state; |
| } |
| } |
| |
| BOOL QZ_IsMouseInWindow (_THIS) { |
| if (qz_window == nil || (mode_flags & SDL_FULLSCREEN)) return YES; /*fullscreen*/ |
| else { |
| NSPoint p = [ qz_window mouseLocationOutsideOfEventStream ]; |
| 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" */ |
| return NSPointInRect(p, [ window_view frame ]); |
| } |
| } |
| |
| int QZ_ShowWMCursor (_THIS, WMcursor *cursor) { |
| |
| if ( cursor == NULL) { |
| if ( cursor_should_be_visible ) { |
| cursor_should_be_visible = NO; |
| QZ_ChangeGrabState (this, QZ_HIDECURSOR); |
| } |
| QZ_UpdateCursor(this); |
| } |
| else { |
| if (qz_window ==nil || (mode_flags & SDL_FULLSCREEN)) { |
| [ cursor->nscursor set ]; |
| } |
| else { |
| [ qz_window invalidateCursorRectsForView: [ qz_window contentView ] ]; |
| } |
| if ( ! cursor_should_be_visible ) { |
| cursor_should_be_visible = YES; |
| QZ_ChangeGrabState (this, QZ_SHOWCURSOR); |
| } |
| QZ_UpdateCursor(this); |
| } |
| |
| return 1; |
| } |
| |
| /* |
| Coordinate conversion functions, for convenience |
| Cocoa sets the origin at the lower left corner of the window/screen |
| SDL, CoreGraphics/WindowServer, and QuickDraw use the origin at the upper left corner |
| The routines were written so they could be called before SetVideoMode() has finished; |
| this might have limited usefulness at the moment, but the extra cost is trivial. |
| */ |
| |
| /* Convert Cocoa screen coordinate to Cocoa window coordinate */ |
| void QZ_PrivateGlobalToLocal (_THIS, NSPoint *p) { |
| |
| *p = [ qz_window convertScreenToBase:*p ]; |
| } |
| |
| |
| /* Convert Cocoa window coordinate to Cocoa screen coordinate */ |
| void QZ_PrivateLocalToGlobal (_THIS, NSPoint *p) { |
| |
| *p = [ qz_window convertBaseToScreen:*p ]; |
| } |
| |
| /* Convert SDL coordinate to Cocoa coordinate */ |
| void QZ_PrivateSDLToCocoa (_THIS, NSPoint *p) { |
| |
| if ( CGDisplayIsCaptured (display_id) ) { /* capture signals fullscreen */ |
| |
| p->y = CGDisplayPixelsHigh (display_id) - p->y; |
| } |
| else { |
| |
| *p = [ window_view convertPoint:*p toView: nil ]; |
| |
| /* We need a workaround in OpenGL mode */ |
| if ( SDL_VideoSurface->flags & SDL_OPENGL ) { |
| p->y = [window_view frame].size.height - p->y; |
| } |
| } |
| } |
| |
| /* Convert Cocoa coordinate to SDL coordinate */ |
| void QZ_PrivateCocoaToSDL (_THIS, NSPoint *p) { |
| |
| if ( CGDisplayIsCaptured (display_id) ) { /* capture signals fullscreen */ |
| |
| p->y = CGDisplayPixelsHigh (display_id) - p->y; |
| } |
| else { |
| |
| *p = [ window_view convertPoint:*p fromView: nil ]; |
| |
| /* We need a workaround in OpenGL mode */ |
| if ( SDL_VideoSurface != NULL && (SDL_VideoSurface->flags & SDL_OPENGL) ) { |
| p->y = [window_view frame].size.height - p->y; |
| } |
| } |
| } |
| |
| /* Convert SDL coordinate to window server (CoreGraphics) coordinate */ |
| CGPoint QZ_PrivateSDLToCG (_THIS, NSPoint *p) { |
| |
| CGPoint cgp; |
| |
| if ( ! CGDisplayIsCaptured (display_id) ) { /* not captured => not fullscreen => local coord */ |
| |
| int height; |
| |
| QZ_PrivateSDLToCocoa (this, p); |
| QZ_PrivateLocalToGlobal (this, p); |
| |
| height = CGDisplayPixelsHigh (display_id); |
| p->y = height - p->y; |
| } |
| |
| cgp.x = p->x; |
| cgp.y = p->y; |
| |
| return cgp; |
| } |
| |
| #if 0 /* Dead code */ |
| /* Convert window server (CoreGraphics) coordinate to SDL coordinate */ |
| void QZ_PrivateCGToSDL (_THIS, NSPoint *p) { |
| |
| if ( ! CGDisplayIsCaptured (display_id) ) { /* not captured => not fullscreen => local coord */ |
| |
| int height; |
| |
| /* Convert CG Global to Cocoa Global */ |
| height = CGDisplayPixelsHigh (display_id); |
| p->y = height - p->y; |
| |
| QZ_PrivateGlobalToLocal (this, p); |
| QZ_PrivateCocoaToSDL (this, p); |
| } |
| } |
| #endif /* Dead code */ |
| |
| void QZ_PrivateWarpCursor (_THIS, int x, int y) { |
| |
| NSPoint p; |
| CGPoint cgp; |
| |
| p = NSMakePoint (x, y); |
| cgp = QZ_PrivateSDLToCG (this, &p); |
| |
| /* this is the magic call that fixes cursor "freezing" after warp */ |
| CGSetLocalEventsSuppressionInterval (0.0); |
| CGWarpMouseCursorPosition (cgp); |
| } |
| |
| void QZ_WarpWMCursor (_THIS, Uint16 x, Uint16 y) { |
| |
| /* Only allow warping when in foreground */ |
| if ( ! [ NSApp isActive ] ) |
| return; |
| |
| /* Do the actual warp */ |
| if (grab_state != QZ_INVISIBLE_GRAB) QZ_PrivateWarpCursor (this, x, y); |
| |
| /* Generate the mouse moved event */ |
| SDL_PrivateMouseMotion (0, 0, x, y); |
| } |
| |
| void QZ_MoveWMCursor (_THIS, int x, int y) { } |
| void QZ_CheckMouseMode (_THIS) { } |
| |
| void QZ_SetCaption (_THIS, const char *title, const char *icon) { |
| |
| if ( qz_window != nil ) { |
| NSString *string; |
| if ( title != NULL ) { |
| string = [ [ NSString alloc ] initWithUTF8String:title ]; |
| [ qz_window setTitle:string ]; |
| [ string release ]; |
| } |
| if ( icon != NULL ) { |
| string = [ [ NSString alloc ] initWithUTF8String:icon ]; |
| [ qz_window setMiniwindowTitle:string ]; |
| [ string release ]; |
| } |
| } |
| } |
| |
| void QZ_SetWindowPos (_THIS, int x, int y) |
| { |
| if ( qz_window == nil ) { |
| //printf( "%s(%d,%d): called for NULL window\n", __FUNCTION__, x, y ); |
| return; |
| } |
| |
| [ qz_window setFrameTopLeftPoint:NSMakePoint( x, this->hidden->height - y ) ]; |
| //printf( "%s(%d,%d): done\n", __FUNCTION__, x, y ); |
| } |
| |
| void QZ_GetWindowPos(_THIS, int *px, int *py) |
| { |
| NSPoint pt; |
| |
| *px = *py = 0; |
| |
| if ( qz_window == NULL ) { |
| //printf( "%s: called on NULL window\n", __FUNCTION__ ); |
| } |
| |
| if ( qz_window != nil ) { |
| NSRect rect = [ qz_window frame ]; |
| *px = rect.origin.x; |
| *py = this->hidden->height - rect.origin.y - rect.size.height; |
| //printf( "%s: returning (%d,%d)\n", __FUNCTION__, *px, *py ); |
| } |
| } |
| |
| /* determine if the window is fully visible on the current screen configuration */ |
| int QZ_IsWindowVisible(_THIS, int recenter) |
| { |
| int result = 0; |
| |
| //printf( "... enter %s\n", __FUNCTION__ ); |
| |
| if ( qz_window != NULL ) { |
| NSRect frame = [ qz_window frame ]; |
| NSArray* screens = [ NSScreen screens ]; |
| unsigned int count = [ screens count ]; |
| unsigned int n; |
| //printf( "window frame (%d,%d) (%d,%d)\n", frame.origin.x, frame.origin.y, |
| // frame.size.width, frame.size.height ); |
| for (n = 0; n < count; n++) { |
| NSScreen* screen = [ screens objectAtIndex: n ]; |
| NSRect vis = [ screen visibleFrame ]; |
| |
| //printf( "screen %d/%d frame (%d,%d) (%d,%d)\n", n+1, count, |
| // vis.origin.x, vis.origin.y, vis.size.width, vis.size.height ); |
| |
| if (frame.origin.x >= vis.origin.x && |
| frame.origin.x + frame.size.width <= vis.origin.x + vis.size.width && |
| frame.origin.y >= vis.origin.y && |
| frame.origin.y + frame.size.height <= vis.origin.y + vis.size.height ) |
| { |
| result = 1; |
| break; |
| } |
| } |
| } |
| //printf ( "... exit %s, result = %d\n", __FUNCTION__, result ); |
| if ( !result && recenter ) { |
| [ qz_window center ] ; |
| } |
| return result; |
| } |
| |
| int QZ_GetMonitorDPI(_THIS, int *xDpi, int *yDpi) |
| { |
| /* FIXME: how to get this information from Cocoa ? */ |
| return -1; |
| } |
| |
| int QZ_GetMonitorRect (_THIS, SDL_Rect *rect) |
| { |
| NSWindow* window = qz_window; |
| NSRect frame = [ window frame ]; |
| int fx1 = frame.origin.x; |
| int fy1 = frame.origin.y; |
| int fx2 = frame.size.width + fx1; |
| int fy2 = frame.size.height + fy1; |
| NSArray* screens = [ NSScreen screens ]; |
| unsigned int count = [ screens count ]; |
| int bestScreen = -1; |
| int bestArea = 0; |
| |
| unsigned int n; |
| |
| /* we need to compute which screen has the most window pixels */ |
| for (n = 0; n < count; n++) { |
| NSScreen* screen = [ screens objectAtIndex: n ]; |
| NSRect vis = [ screen visibleFrame ]; |
| int vx1 = vis.origin.x; |
| int vy1 = vis.origin.y; |
| int vx2 = vis.size.width + vx1; |
| int vy2 = vis.size.height + vy1; |
| int cx1, cx2, cy1, cy2, cArea; |
| |
| if (fx1 >= vx2 || vx1 >= fx2 || fy1 >= vy2 || vy1 >= fy2) |
| continue; |
| |
| cx1 = (fx1 < vx1) ? vx1 : fx1; |
| cx2 = (fx2 > vx2) ? vx2 : fx2; |
| cy1 = (fy1 < vy1) ? vy1 : fy1; |
| cy2 = (fy2 > vy2) ? vy2 : fy2; |
| |
| if (cx1 >= cx2 || cy1 >= cy2) |
| continue; |
| |
| cArea = (cx2-cx1)*(cy2-cy1); |
| |
| if (bestScreen < 0 || cArea > bestArea) { |
| bestScreen = n; |
| bestArea = cArea; |
| } |
| } |
| if (bestScreen < 0) |
| bestScreen = 0; |
| |
| { |
| NSScreen* screen = [ screens objectAtIndex: bestScreen ]; |
| NSRect vis = [ screen visibleFrame ]; |
| |
| rect->x = vis.origin.x; |
| rect->y = vis.origin.y; |
| rect->w = vis.size.width; |
| rect->h = vis.size.height; |
| } |
| return 0; |
| } |
| |
| void QZ_SetIcon (_THIS, SDL_Surface *icon, Uint8 *mask) |
| { |
| NSBitmapImageRep *imgrep; |
| NSImage *img; |
| SDL_Surface *mergedSurface; |
| NSAutoreleasePool *pool; |
| Uint8 *pixels; |
| SDL_bool iconSrcAlpha; |
| Uint8 iconAlphaValue; |
| int i, j, maskPitch, index; |
| |
| pool = [ [ NSAutoreleasePool alloc ] init ]; |
| |
| 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 ]; |
| if (imgrep == nil) goto freePool; |
| pixels = [ imgrep bitmapData ]; |
| SDL_memset(pixels, 0, 4*icon->w*icon->h); /* make the background, which will survive in colorkeyed areas, completely transparent */ |
| |
| #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
| #define BYTEORDER_DEPENDENT_RGBA_MASKS 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
| #else |
| #define BYTEORDER_DEPENDENT_RGBA_MASKS 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
| #endif |
| mergedSurface = SDL_CreateRGBSurfaceFrom(pixels, icon->w, icon->h, 32, 4*icon->w, BYTEORDER_DEPENDENT_RGBA_MASKS); |
| if (mergedSurface == NULL) goto freePool; |
| |
| /* blit, with temporarily cleared SRCALPHA flag because we want to copy, not alpha-blend */ |
| iconSrcAlpha = ((icon->flags & SDL_SRCALPHA) != 0); |
| iconAlphaValue = icon->format->alpha; |
| SDL_SetAlpha(icon, 0, 255); |
| SDL_BlitSurface(icon, NULL, mergedSurface, NULL); |
| if (iconSrcAlpha) SDL_SetAlpha(icon, SDL_SRCALPHA, iconAlphaValue); |
| |
| SDL_FreeSurface(mergedSurface); |
| |
| /* apply mask, source alpha, and premultiply color values by alpha */ |
| maskPitch = (icon->w+7)/8; |
| for (i = 0; i < icon->h; i++) { |
| for (j = 0; j < icon->w; j++) { |
| index = i*4*icon->w + j*4; |
| if (!(mask[i*maskPitch + j/8] & (128 >> j%8))) { |
| pixels[index + 3] = 0; |
| } |
| else { |
| if (iconSrcAlpha) { |
| if (icon->format->Amask == 0) pixels[index + 3] = icon->format->alpha; |
| } |
| else { |
| pixels[index + 3] = 255; |
| } |
| } |
| if (pixels[index + 3] < 255) { |
| pixels[index + 0] = (Uint16)pixels[index + 0]*pixels[index + 3]/255; |
| pixels[index + 1] = (Uint16)pixels[index + 1]*pixels[index + 3]/255; |
| pixels[index + 2] = (Uint16)pixels[index + 2]*pixels[index + 3]/255; |
| } |
| } |
| } |
| |
| img = [ [ [ NSImage alloc ] initWithSize: NSMakeSize(icon->w, icon->h) ] autorelease ]; |
| if (img == nil) goto freePool; |
| [ img addRepresentation: imgrep ]; |
| [ NSApp setApplicationIconImage:img ]; |
| |
| freePool: |
| [ pool release ]; |
| } |
| |
| int QZ_IconifyWindow (_THIS) { |
| |
| if ( ! [ qz_window isMiniaturized ] ) { |
| [ qz_window miniaturize:nil ]; |
| return 1; |
| } |
| else { |
| SDL_SetError ("window already iconified"); |
| return 0; |
| } |
| } |
| |
| |
| int QZ_GetWMInfo (_THIS, SDL_SysWMinfo *info) { |
| info->nsWindowPtr = qz_window; |
| return 0; |
| } |
| |
| void QZ_ChangeGrabState (_THIS, int action) { |
| |
| /* |
| Figure out what the next state should be based on the action. |
| Ignore actions that can't change the current state. |
| */ |
| if ( grab_state == QZ_UNGRABBED ) { |
| if ( action == QZ_ENABLE_GRAB ) { |
| if ( cursor_should_be_visible ) |
| grab_state = QZ_VISIBLE_GRAB; |
| else |
| grab_state = QZ_INVISIBLE_GRAB; |
| } |
| } |
| else if ( grab_state == QZ_VISIBLE_GRAB ) { |
| if ( action == QZ_DISABLE_GRAB ) |
| grab_state = QZ_UNGRABBED; |
| else if ( action == QZ_HIDECURSOR ) |
| grab_state = QZ_INVISIBLE_GRAB; |
| } |
| else { |
| assert( grab_state == QZ_INVISIBLE_GRAB ); |
| |
| if ( action == QZ_DISABLE_GRAB ) |
| grab_state = QZ_UNGRABBED; |
| else if ( action == QZ_SHOWCURSOR ) |
| grab_state = QZ_VISIBLE_GRAB; |
| } |
| |
| /* now apply the new state */ |
| if (grab_state == QZ_UNGRABBED) { |
| |
| CGAssociateMouseAndMouseCursorPosition (1); |
| } |
| else if (grab_state == QZ_VISIBLE_GRAB) { |
| |
| CGAssociateMouseAndMouseCursorPosition (1); |
| } |
| else { |
| assert( grab_state == QZ_INVISIBLE_GRAB ); |
| |
| QZ_PrivateWarpCursor (this, SDL_VideoSurface->w / 2, SDL_VideoSurface->h / 2); |
| CGAssociateMouseAndMouseCursorPosition (0); |
| } |
| } |
| |
| SDL_GrabMode QZ_GrabInput (_THIS, SDL_GrabMode grab_mode) { |
| |
| int doGrab = grab_mode & SDL_GRAB_ON; |
| /*int fullscreen = grab_mode & SDL_GRAB_FULLSCREEN;*/ |
| |
| if ( this->screen == NULL ) { |
| SDL_SetError ("QZ_GrabInput: screen is NULL"); |
| return SDL_GRAB_OFF; |
| } |
| |
| if ( ! video_set ) { |
| /*SDL_SetError ("QZ_GrabInput: video is not set, grab will take effect on mode switch"); */ |
| current_grab_mode = grab_mode; |
| return grab_mode; /* Will be set later on mode switch */ |
| } |
| |
| if ( grab_mode != SDL_GRAB_QUERY ) { |
| if ( doGrab ) |
| QZ_ChangeGrabState (this, QZ_ENABLE_GRAB); |
| else |
| QZ_ChangeGrabState (this, QZ_DISABLE_GRAB); |
| |
| current_grab_mode = doGrab ? SDL_GRAB_ON : SDL_GRAB_OFF; |
| } |
| |
| return current_grab_mode; |
| } |