Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11shape.c @ 4784:2878650e0dc9
Added SDL_x11shape.h and removed unnecessary header includes from SDL_x11shape.c. This should help Andreas and Sam to compile the new code.
author | Eli Gottlieb <eligottlieb@gmail.com> |
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date | Fri, 02 Jul 2010 12:05:47 -0400 |
parents | b6930aefd008 |
children | ef8b32ef9793 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 2010 Eli Gottlieb |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Eli Gottlieb |
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20 eligottlieb@gmail.com |
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21 */ |
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22 |
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23 #include <X11/extensions/shape.h> |
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24 #include "SDL_x11shape.h" |
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25 #include "SDL_x11window.h" |
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26 #include "SDL_x11video.h" |
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27 |
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28 SDL_WindowShaper* X11_CreateShaper(SDL_Window* window) { |
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29 SDL_WindowShaper* result = malloc(sizeof(SDL_WindowShaper)); |
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30 result->window = window; |
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31 result->alphacutoff = 0; |
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32 result->usershownflag = 0; |
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33 result->driverdata = malloc(sizeof(SDL_ShapeData)); |
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parents:
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34 window->shaper = result; |
b6930aefd008
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35 int resized_properly = X11ResizeWindowShape(window); |
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36 assert(resized_properly == 0); |
b6930aefd008
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37 return result; |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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38 } |
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39 |
4782
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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40 int X11_ResizeWindowShape(SDL_Window* window) { |
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41 SDL_ShapeData* data = window->shaper->driverdata; |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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42 assert(data != NULL); |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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43 |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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44 unsigned int bitmapsize = window->w / 8; |
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parents:
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45 if(window->w % 8 > 0) |
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46 bitmapsize += 1; |
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parents:
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47 bitmapsize *= window->h; |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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48 if(data->bitmapsize != bitmapsize || data->bitmap == NULL) { |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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49 data->bitmapsize = bitmapsize; |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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50 if(data->bitmap != NULL) |
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51 free(data->bitmap); |
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52 data->bitmap = malloc(data->bitmapsize); |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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53 if(data->bitmap == NULL) { |
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54 SDL_SetError("Could not allocate memory for shaped-window bitmap."); |
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55 return -1; |
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56 } |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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57 } |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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58 |
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59 window->shaper->usershownflag = window->flags & SDL_WINDOW_SHOWN; |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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60 |
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parents:
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61 return 0; |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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62 } |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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63 |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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64 int X11_SetWindowShape(SDL_WindowShaper *shaper,SDL_Surface *shape,SDL_WindowShapeMode *shapeMode) { |
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65 if(!SDL_ISPIXELFORMAT_ALPHA(SDL_MasksToPixelFormatEnum(shape->format->BitsPerPixel,shape->format->Rmask,shape->format->Gmask,shape->format->Bmask,shape->format->Amask))) |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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66 return -2; |
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67 if(shape->w != shaper->window->w || shape->h != shaper->window->h) |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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68 return -3; |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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69 SDL_ShapeData *data = shaper->driverdata; |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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70 assert(data != NULL); |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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71 |
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parents:
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72 /* Assume that shaper->alphacutoff already has a value. */ |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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73 SDL_CalculateShapeBitmap(shaper->alphacutoff,shape,data->bitmap); |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
4777
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74 |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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75 SDL_WindowData *windowdata = (SDL_WindowData*)(shaper->window->driverdata); |
b6930aefd008
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parents:
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76 Pixmap shapemask = XCreateBitmapFromData(windowdata->videodata->display,windowdata->xwindow,data->bitmap,shaper->window->w,shaper->window->h); |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
4777
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77 |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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78 XShapeCombineMask(windowdata->videodata->display,windowdata->xwindow, ShapeBounding, 0, 0,shapemask, ShapeSet); |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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79 XSync(windowdata->videodata->display,False); |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
4777
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80 |
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parents:
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81 XFreePixmap(windowdata->videodata->display,shapemask); |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
4777
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82 |
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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83 return 0; |
b6930aefd008
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Eli Gottlieb <eligottlieb@gmail.com>
parents:
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84 } |