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annotate src/video/xbios/SDL_xbios_centscreen.h @ 2662:5470680ca587 gsoc2008_audio_resampling

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Made a very significant optimization to the FIR filter which I believe I can take a little further. Right now the FIR filter size is 768 and I get some free() bugs, so this is something I need to debug.
author Aaron Wishnick <schnarf@gmail.com>
date Thu, 10 Jul 2008 07:02:18 +0000
parents c121d94672cb
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) 1997-2004 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 #include "SDL_config.h"
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23
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24 /*
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25 Centscreen extension definitions
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26
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27 Patrice Mandin
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28 */
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29
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30 #ifndef _SDL_xbios_centscreen_h
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31 #define _SDL_xbios_centscreen_h
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32
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33 #include <mint/falcon.h> /* for trap_14_xxx macros */
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34
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35 #include "SDL_xbios.h"
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36
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37 /*--- Defines ---*/
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38
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39 #ifndef C_CNTS
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40 #define C_CNTS 0x434e5453L
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41 #endif
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42
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43 #define CSCREEN_ENERGYSTAR (1<<9)
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44 #define CSCREEN_SAVER (1<<10)
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45 #define CSCREEN_VIRTUAL (1<<11)
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46 #define CSCREEN_EXTCLOCK_CT2 (1<<12)
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47 #define CSCREEN_EXTCLOCK (1<<13)
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48 #define CSCREEN_STANDARD (1<<14)
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49 #define CSCREEN_DEFAULT (1<<15)
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50
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51 /*--- Structures ---*/
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52
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53 typedef struct
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54 {
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55 unsigned short handle; /* videomode handle */
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56 unsigned short mode; /* Falcon videomode code */
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57 unsigned short physx; /* visible width */
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58 unsigned short physy; /* visible height */
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59 unsigned short plan; /* bitplanes */
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60 unsigned short logx; /* virtual width */
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61 unsigned short logy; /* virtual height */
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62 unsigned short eco; /* screen saver delay */
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63 unsigned short eco2; /* energy star screen saver delay */
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64 unsigned short wsize; /* screen width (mm) */
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65 unsigned short hsize; /* screen height (mm) */
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66 unsigned short dummy[21];
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67 unsigned char name[32]; /* videomode name */
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68 } __attribute__ ((packed)) centscreen_mode_t;
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69
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70 /*--- Functions prototypes ---*/
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71
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72 #define Vread(current_mode) \
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73 (void)trap_14_wl((short)0x41,(long)(current_mode))
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74 #define Vwrite(init_vdi, inparam, outparam) \
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75 (long)trap_14_wwll((short)0x42,(short)(init_vdi),(long)(inparam),(long)(outparam))
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76 #define Vattrib(inparam, outparam) \
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77 (void)trap_14_wll((short)0x43,(long)(inparam),(long)(outparam))
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78 #define Vcreate(inparam, outparam) \
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79 (void)trap_14_wll((short)0x44,(long)(inparam),(long)(outparam))
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80 #define Vdelete(handle) \
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81 (long)trap_14_ww((short)0x45,(short)(handle))
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82 #define Vfirst(mask,mode) \
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83 (long)trap_14_wll((short)0x46,(long)(mask),(long)(mode))
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84 #define Vnext(mask,mode) \
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85 (long)trap_14_wll((short)0x47,(long)(mask),(long)(mode))
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86 #define Vvalid(handle) \
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87 (long)trap_14_ww((short)0x48,(short)(handle))
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88 #define Vload() \
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89 (long)trap_14_w((short)0x49)
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90 #define Vsave() \
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91 (long)trap_14_w((short)0x4a)
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92 #define Vopen() \
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93 (long)trap_14_w((short)0x4b)
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94 #define Vclose() \
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95 (long)trap_14_w((short)0x4c)
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96 #define Vscroll(scrollmode) \
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97 (long)trap_14_ww((short)0x4d,(short)(scrollmode))
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98 #define Voffset() \
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99 (long)trap_14_w((short)0x4e)
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100 #define Vseek() \
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101 (long)trap_14_w((short)0x4f)
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102 #define Vlock(cmd) \
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103 (long)trap_14_ww((short)0x50,(short)(cmd))
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104 #define SetMon(montype) \
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105 (long)trap_14_ww((short)0x51,(short)(montype))
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106 #define MultiMon(cmd) \
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107 (long)trap_14_ww((short)0x52,(short)(cmd))
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108 #define VSizeComp() \
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109 (long)trap_14_w((short)0x53)
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110 #define Vsize(mode) \
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111 (long)trap_14_wl((short)0x54,(long)(mode))
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112
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113 /*--- Functions prototypes ---*/
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114
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115 int SDL_XBIOS_CentscreenInit(_THIS);
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116 void SDL_XBIOS_CentscreenSetmode(_THIS, int width, int height, int planes);
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117 void SDL_XBIOS_CentscreenRestore(_THIS, int prev_handle);
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118
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119 #endif /* _SDL_xbios_centscreen_h */
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120 /* vi: set ts=4 sw=4 expandtab: */