| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2011 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_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(x, y); |
| SDL_Win->Lock(); |
| SDL_Win->ConvertToScreen(&pt); |
| SDL_Win->Unlock(); |
| set_mouse_position((int32) pt.x, (int32) pt.y); |
| } |
| |
| }; /* Extern C */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
