Mercurial > sdl-ios-xcode
annotate src/video/dummy/SDL_nullframebuffer.c @ 5284:96a22141cf86 tip
Changed output directory of Universal libSDL.a for iOS to respect build configurations. Template generator was updated to reflect these changes as well.
author | Eric Wing <ewing . public |-at-| gmail . com> |
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date | Sat, 12 Feb 2011 21:52:30 -0800 |
parents | b530ef003506 |
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rev | line source |
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5169
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Added a way to get a framebuffer interface for a window, and also a way to create a software renderer for an arbitrary surface.
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1 /* |
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2 SDL - Simple DirectMedia Layer |
5267 | 3 Copyright (C) 1997-2011 Sam Lantinga |
5169
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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 |
4d39eeaad00b
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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 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 #include "../SDL_sysvideo.h" |
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25 |
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26 |
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27 #define DUMMY_SURFACE "_SDL_DummySurface" |
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28 |
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29 int SDL_DUMMY_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch) |
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30 { |
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31 SDL_Surface *surface; |
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32 const Uint32 surface_format = SDL_PIXELFORMAT_RGB888; |
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33 int w, h; |
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34 int bpp; |
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35 Uint32 Rmask, Gmask, Bmask, Amask; |
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36 |
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37 /* Free the old framebuffer surface */ |
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38 surface = (SDL_Surface *) SDL_GetWindowData(window, DUMMY_SURFACE); |
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39 if (surface) { |
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40 SDL_FreeSurface(surface); |
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41 } |
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42 |
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43 /* Create a new one */ |
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44 SDL_PixelFormatEnumToMasks(surface_format, &bpp, &Rmask, &Gmask, &Bmask, &Amask); |
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45 SDL_GetWindowSize(window, &w, &h); |
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46 surface = SDL_CreateRGBSurface(0, w, h, bpp, Rmask, Gmask, Bmask, Amask); |
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47 if (!surface) { |
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48 return -1; |
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49 } |
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50 |
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51 /* Save the info and return! */ |
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52 SDL_SetWindowData(window, DUMMY_SURFACE, surface); |
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53 *format = surface_format; |
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54 *pixels = surface->pixels; |
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55 *pitch = surface->pitch; |
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56 return 0; |
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57 } |
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58 |
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59 int SDL_DUMMY_UpdateWindowFramebuffer(_THIS, SDL_Window * window, int numrects, SDL_Rect * rects) |
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60 { |
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61 static int frame_number; |
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62 SDL_Surface *surface; |
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63 |
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64 surface = (SDL_Surface *) SDL_GetWindowData(window, DUMMY_SURFACE); |
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65 if (!surface) { |
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66 SDL_SetError("Couldn't find dummy surface for window"); |
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67 return -1; |
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68 } |
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69 |
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70 /* Send the data to the display */ |
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71 if (SDL_getenv("SDL_VIDEO_DUMMY_SAVE_FRAMES")) { |
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72 char file[128]; |
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73 SDL_snprintf(file, sizeof(file), "SDL_window%d-%8.8d.bmp", |
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74 SDL_GetWindowID(window), ++frame_number); |
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75 SDL_SaveBMP(surface, file); |
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76 } |
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77 return 0; |
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78 } |
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79 |
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80 void SDL_DUMMY_DestroyWindowFramebuffer(_THIS, SDL_Window * window) |
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81 { |
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82 SDL_Surface *surface; |
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83 |
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84 surface = (SDL_Surface *) SDL_SetWindowData(window, DUMMY_SURFACE, NULL); |
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85 if (surface) { |
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86 SDL_FreeSurface(surface); |
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87 } |
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88 } |
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89 |
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90 /* vi: set ts=4 sw=4 expandtab: */ |