| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2006 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| #include <AppKit.h> |
| #include <GameKit.h> |
| |
| #include "SDL_BWin.h" |
| |
| extern "C" { |
| #include "../SDL_cursor_c.h" |
| #include "SDL_sysmouse_c.h" |
| |
| /* Convert bits to padded bytes */ |
| #define PADDED_BITS(bits) ((bits+7)/8) |
| |
| /* The implementation dependent data for the window manager cursor */ |
| struct WMcursor { |
| char *bits; |
| }; |
| |
| /* Can this be done in the BeOS? */ |
| WMcursor *BE_CreateWMCursor(_THIS, |
| Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) |
| { |
| WMcursor *cursor; |
| int allowed_x; |
| int allowed_y; |
| int run, pad, i; |
| char *cptr; |
| |
| allowed_x = 16; /* BeOS limitation */ |
| allowed_y = 16; /* BeOS limitation */ |
| if ( (w > allowed_x) || (h > allowed_y) ) { |
| SDL_SetError("Only cursors of dimension (%dx%d) are allowed", |
| allowed_x, allowed_y); |
| return(NULL); |
| } |
| |
| /* Allocate the cursor */ |
| cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); |
| if ( cursor == NULL ) { |
| SDL_OutOfMemory(); |
| return(NULL); |
| } |
| cursor->bits = (char *)SDL_malloc(4+2*((allowed_x/8)*allowed_y)); |
| if ( cursor->bits == NULL ) { |
| SDL_free(cursor); |
| SDL_OutOfMemory(); |
| return(NULL); |
| } |
| cursor->bits[0] = allowed_y; /* Size of the cursor */ |
| cursor->bits[1] = 1; /* Bit depth of cursor */ |
| cursor->bits[2] = hot_y; |
| cursor->bits[3] = hot_x; |
| cptr = &cursor->bits[4]; |
| |
| /* Pad out to the normal cursor size */ |
| run = PADDED_BITS(w); |
| pad = PADDED_BITS(allowed_x)-run; |
| for ( i=0; i<h; ++i ) { |
| SDL_memcpy(cptr, data, run); |
| SDL_memset(cptr+run, 0, pad); |
| data += run; |
| cptr += (run+pad); |
| } |
| for ( ; i<allowed_y; ++i ) { |
| SDL_memset(cptr, 0, run+pad); |
| cptr += (run+pad); |
| } |
| for ( i=0; i<h; ++i ) { |
| /* FIXME: The mask should be OR'd with the data to turn |
| inverted color pixels black, since inverted color pixels |
| aren't supported under BeOS. |
| */ |
| SDL_memcpy(cptr, mask, run); |
| SDL_memset(cptr+run, 0, pad); |
| mask += run; |
| cptr += (run+pad); |
| } |
| for ( ; i<allowed_y; ++i ) { |
| SDL_memset(cptr, 0, run+pad); |
| cptr += (run+pad); |
| } |
| return(cursor); |
| } |
| |
| int BE_ShowWMCursor(_THIS, WMcursor *cursor) |
| { |
| if ( be_app->Lock() ) { |
| if ( cursor == NULL ) { |
| if ( SDL_BlankCursor != NULL ) { |
| be_app->SetCursor(SDL_BlankCursor->bits); |
| } |
| } else { |
| be_app->SetCursor(cursor->bits); |
| } |
| be_app->Unlock(); |
| } |
| return(1); |
| } |
| |
| void BE_FreeWMCursor(_THIS, WMcursor *cursor) |
| { |
| SDL_free(cursor->bits); |
| SDL_free(cursor); |
| } |
| |
| /* Implementation by Christian Bauer <cbauer@student.physik.uni-mainz.de> */ |
| void BE_WarpWMCursor(_THIS, Uint16 x, Uint16 y) |
| { |
| BPoint pt; |
| SDL_Win->GetXYOffset(pt.x, pt.y); |
| pt.x += x; |
| pt.y += y; |
| SDL_Win->Lock(); |
| SDL_Win->ConvertToScreen(&pt); |
| SDL_Win->Unlock(); |
| set_mouse_position((int32)pt.x, (int32)pt.y); |
| } |
| |
| /* Check to see if we need to enter or leave mouse relative mode */ |
| void BE_CheckMouseMode(_THIS) |
| { |
| /* If the mouse is hidden and input is grabbed, we use relative mode */ |
| if ( !(SDL_cursorstate & CURSOR_VISIBLE) && |
| (_this->input_grab != SDL_GRAB_OFF) ) { |
| mouse_relative = 1; |
| } else { |
| mouse_relative = 0; |
| } |
| } |
| |
| }; /* Extern C */ |