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annotate src/video/directfb/SDL_DirectFB_modes.h @ 3473:7bdc10624cba

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This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:14:21 +0000
parents 99210400e8b9
children 4b594623401b
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 #ifndef _SDL_directfb_modes_h
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25 #define _SDL_directfb_modes_h
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26
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27 #include "SDL_DirectFB_video.h"
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28
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29 #define SDL_DFB_DISPLAYDATA(dev, win) DFB_DisplayData *dispdata = ((win && dev) ? (DFB_DisplayData *) (dev)->displays[(win)->display].driverdata : NULL)
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30
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31 typedef struct _DFB_DisplayData DFB_DisplayData;
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32 struct _DFB_DisplayData
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33 {
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34 IDirectFBDisplayLayer *layer;
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35 DFBSurfacePixelFormat pixelformat;
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36 /* FIXME: support for multiple video layer.
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37 * However, I do not know any card supporting
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38 * more than one
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39 */
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40 DFBDisplayLayerID vidID;
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41 IDirectFBDisplayLayer *vidlayer;
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42
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43 int vidIDinuse;
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44
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45 int cw;
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46 int ch;
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47 };
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48
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49
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50 extern void DirectFB_InitModes(_THIS);
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51 extern void DirectFB_GetDisplayModes(_THIS);
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52 extern int DirectFB_SetDisplayMode(_THIS, SDL_DisplayMode * mode);
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53 extern void DirectFB_QuitModes(_THIS);
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54
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55 #endif /* _SDL_directfb_modes_h */
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56
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57 /* vi: set ts=4 sw=4 expandtab: */