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annotate src/video/ataricommon/SDL_ataric2p_s.h @ 553:417f8709e648

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There's a bug in the VC7 optimizer relating to the duff loop optimization
author Sam Lantinga <slouken@libsdl.org>
date Mon, 02 Dec 2002 02:40:58 +0000
parents f6ffac90895c
children 0310bb01091f
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #ifndef _ATARI_C2P_h
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29 #define _ATARI_C2P_h
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30
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31 #include "SDL_types.h"
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32
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33 /*--- Variables ---*/
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34
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35 extern Uint8 Atari_table_c2p[2048]; /* Used by conversions routines */
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36
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37 /*--- Functions pointers ---*/
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38
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39 /* Initialize conversion table */
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40
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41 extern void (*Atari_C2pInit)(void);
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42
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43 /* Convert a chunky screen to bitplane screen */
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44
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45 extern void (*Atari_C2pConvert)(
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46 Uint8 *src, /* Source screen (one byte=one pixel) */
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47 Uint8 *dest, /* Destination (4/8 bits planes) */
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48 Uint32 width, /* Dimensions of screen to convert */
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49 Uint32 height,
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50 Uint32 dblligne, /* Double the lines when converting ? */
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51 Uint32 srcpitch, /* Length of one source line in bytes */
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52 Uint32 dstpitch /* Length of one destination line in bytes */
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53 );
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54
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55 /*--- 8 bits functions ---*/
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56
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57 /* Initialize conversion table */
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58
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59 void Atari_C2pInit8(void);
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60
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61 /* Convert a chunky screen to bitplane screen */
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62
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63 void Atari_C2pConvert8(
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64 Uint8 *src, /* Source screen (one byte=one pixel) */
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65 Uint8 *dest, /* Destination (8 bits planes) */
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66 Uint32 width, /* Dimensions of screen to convert */
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67 Uint32 height,
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68 Uint32 dblligne, /* Double the lines when converting ? */
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69 Uint32 srcpitch, /* Length of one source line in bytes */
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70 Uint32 dstpitch /* Length of one destination line in bytes */
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71 );
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72
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73 /*--- 4 bits functions ---*/
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74
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75 /* Initialize conversion table */
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76
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77 void Atari_C2pInit4(void);
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78
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79 /* Convert a chunky screen to bitplane screen */
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80
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81 void Atari_C2pConvert4(
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82 Uint8 *src, /* Source screen (one byte=one pixel) */
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83 Uint8 *dest, /* Destination (4 bits planes) */
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84 Uint32 width, /* Dimensions of screen to convert */
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85 Uint32 height,
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86 Uint32 dblligne, /* Double the lines when converting ? */
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87 Uint32 srcpitch, /* Length of one source line in bytes */
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88 Uint32 dstpitch /* Length of one destination line in bytes */
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89 );
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90
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91 /* Conversion palette */
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92
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93 void Atari_C2pConvert4_pal(Uint16 *lightpalette);
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94
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95 #endif /* _ATARI_C2P_h */