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annotate src/cdrom/SDL_syscdrom.h @ 2328:91e601d9df8b

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re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being fixed is caused by clearing SDL_COPY_RLE_COLORKEY without setting SDL_COPY_RLE_DESIRED in SDL_UnRELSurface.
author Bob Pendleton <bob@pendleton.com>
date Fri, 14 Mar 2008 18:17:49 +0000
parents 542c78b6fb12
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is SDL_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 /* This is the system specific header for the SDL CD-ROM API */
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25
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26 /* Structure of CD audio control functions */
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27 extern struct CDcaps
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28 {
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29 /* Get the name of the specified drive */
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30 const char *(*Name) (int drive);
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31
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32 /* Open the specified drive, returning a drive id, or -1 on error */
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33 int (*Open) (int drive);
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34
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35 /* Get table-of-contents (number of tracks + track info) for disk.
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36 The TOC information should be stored in the cdrom structure.
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37 This function should return 0 on success, or -1 on error.
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38 */
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39 int (*GetTOC) (SDL_CD * cdrom);
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40
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41 /* Return the current status and play position, in frames, of the
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42 drive. 'position' may be NULL, and if so, should be ignored.
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43 */
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44 CDstatus(*Status) (SDL_CD * cdrom, int *position);
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45
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46 /* Play from frame 'start' to 'start+len' */
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47 int (*Play) (SDL_CD * cdrom, int start, int len);
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48
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49 /* Pause play */
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50 int (*Pause) (SDL_CD * cdrom);
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51
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52 /* Resume play */
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53 int (*Resume) (SDL_CD * cdrom);
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54
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55 /* Stop play */
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56 int (*Stop) (SDL_CD * cdrom);
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57
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58 /* Eject the current disk */
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59 int (*Eject) (SDL_CD * cdrom);
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60
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61 /* Close the specified drive */
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62 void (*Close) (SDL_CD * cdrom);
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63 } SDL_CDcaps;
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64
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65 /* The number of available CD-ROM drives on the system */
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66 extern int SDL_numcds;
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67
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68 /* Function to scan the system for CD-ROM drives and fill SDL_CDcaps.
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69 * This function should set SDL_numcds to the number of available CD
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70 * drives. Drive 0 should be the system default CD-ROM.
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71 * It should return 0, or -1 on an unrecoverable fatal error.
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72 */
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73 extern int SDL_SYS_CDInit(void);
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74
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75 /* Function to perform any system-specific CD-ROM related cleanup */
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76 extern void SDL_SYS_CDQuit(void);
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77
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78 /* vi: set ts=4 sw=4 expandtab: */