Mercurial > sdl-ios-xcode

annotate src/video/gem/SDL_gemmodes.c @ 2661:d38309be5178 gsoc2008_audio_resampling

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The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out.
author Aaron Wishnick <schnarf@gmail.com>
date Wed, 02 Jul 2008 08:04:50 +0000
parents 7e1caa8452f3
children 99210400e8b9
rev   line source
2189
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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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 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_gemvideo.h"
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25
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26
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27 void
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28 GEM_InitModes(_THIS)
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29 {
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30 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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31 Uint32 Rmask, Gmask, Bmask, Amask;
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32 SDL_VideoDisplay display;
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33 SDL_DisplayData *displaydata;
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34 SDL_DisplayMode mode;
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35 int bpp;
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36
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37 /* read vdi bpp, rmask, gmask, bmask, amask */
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38
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39 mode.format = SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
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40 mode.w = 0 /* vdi width */ ;
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41 mode.h = 0 /* vdi height */ ;
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42 mode.refresh_rate = 0;
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43 mode.driverdata = NULL;
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44
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45 displaydata = (SDL_DisplayData *) SDL_malloc(sizeof(*displaydata));
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46 if (!displaydata) {
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47 return;
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48 }
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49 /* fill display data */
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50
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51 SDL_zero(display);
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52 display.desktop_mode = mode;
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53 display.current_mode = mode;
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54 display.driverdata = displaydata;
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55 SDL_AddVideoDisplay(&display);
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56 }
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57
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58 void
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59 GEM_GetDisplayModes(_THIS)
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60 {
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61 SDL_DisplayData *data = (SDL_DisplayData *) SDL_CurrentDisplay.driverdata;
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62 SDL_DisplayMode mode;
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63 //SDL_AddDisplayMode(_this->current_display, &mode);
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64 }
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65
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66 int
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67 GEM_SetDisplayMode(_THIS, SDL_DisplayMode * mode)
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68 {
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69 //SDL_DisplayModeData *data = (SDL_DisplayModeData *) mode->driverdata;
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70 return -1;
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71 }
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72
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73 void
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74 GEM_QuitModes(_THIS)
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75 {
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76 }
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77
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78 /* vi: set ts=4 sw=4 expandtab: */