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annotate src/video/SDL_pixels_c.h @ 1525:23a347cfbed8

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Fixed bug #38 I'm using SDL 1.2.9 with Visual C++ 7.0 on Windows 2000. Here's the setup: my game starts in a window, with SDL_WM_GrabInput(SDL_GRAB_ON) to constrain the cursor to the game window. The mouse cursor is outside of the window when the game launches, and when the window appears the cursor is grabbed and placed at the top left corner of the inside of the game window. At this point, if I click the mouse without moving it, the SDL_MOUSEBUTTONDOWN event's mouse coordinates are (65535,65535).
author Sam Lantinga <slouken@libsdl.org>
date Tue, 14 Mar 2006 06:00:30 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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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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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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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 /* Useful functions and variables from SDL_pixel.c */
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25
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26 #include "SDL_blit.h"
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27
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28 /* Pixel format functions */
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29 extern SDL_PixelFormat *SDL_AllocFormat(int bpp,
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30 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
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31 extern SDL_PixelFormat *SDL_ReallocFormat(SDL_Surface *surface, int bpp,
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32 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
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33 extern void SDL_FormatChanged(SDL_Surface *surface);
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34 extern void SDL_FreeFormat(SDL_PixelFormat *format);
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35
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36 /* Blit mapping functions */
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37 extern SDL_BlitMap *SDL_AllocBlitMap(void);
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38 extern void SDL_InvalidateMap(SDL_BlitMap *map);
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39 extern int SDL_MapSurface (SDL_Surface *src, SDL_Surface *dst);
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40 extern void SDL_FreeBlitMap(SDL_BlitMap *map);
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41
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42 /* Miscellaneous functions */
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43 extern Uint16 SDL_CalculatePitch(SDL_Surface *surface);
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44 extern void SDL_DitherColors(SDL_Color *colors, int bpp);
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45 extern Uint8 SDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b);
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46 extern void SDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output, int ncolors);