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annotate src/loadso/win32/SDL_sysloadso.c @ 4165:3b8ac3d311a2 SDL-1.2

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Hello. This patch provides basic support for video on the Sony PS3 Linux framebuffer. Scaling, format-conversion, and drawing is done from the SPEs, so there is little performance impact to PPE applications. This is by no means production quality code, but it is a very good start and a good example of how to use the PS3's hardware capabilities to accelerate video playback on the box. The driver has been verified to work with ffplay, mplayer and xine. This piece of software has been developed at the IBM R&D Lab in Boeblingen, Germany and is now returned to the community. Enjoy ! Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
author Sam Lantinga <slouken@libsdl.org>
date Thu, 02 Apr 2009 04:06:55 +0000
parents a1b03ba2fcd0
children 2dc6c9f343c8
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 #ifdef SDL_LOADSO_WIN32
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25
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26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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27 /* System dependent library loading routines */
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28
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29 #define WIN32_LEAN_AND_MEAN
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30 #include <windows.h>
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31
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32 #include "SDL_loadso.h"
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33
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34 void *SDL_LoadObject(const char *sofile)
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35 {
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36 void *handle = NULL;
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37 const char *loaderror = "Unknown error";
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38
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39 #if defined(_WIN32_WCE)
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40 char errbuf[512];
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41
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42 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t));
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43 wchar_t *sofile_t = SDL_malloc((MAX_PATH+1) * sizeof(wchar_t));
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44
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45 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, sofile, -1, sofile_t, MAX_PATH);
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46 handle = (void *)LoadLibrary(sofile_t);
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47
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48 /* Generate an error message if all loads failed */
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49 if ( handle == NULL ) {
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50 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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51 FORMAT_MESSAGE_FROM_SYSTEM),
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52 NULL, GetLastError(),
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53 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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54 errbuf_t, SDL_arraysize(errbuf), NULL);
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55 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
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56 loaderror = errbuf;
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57 }
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58
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59 SDL_free(sofile_t);
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60 SDL_free(errbuf_t);
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61
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62 #else /*if defined(__WIN32__)*/
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63 char errbuf[512];
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64
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65 handle = (void *)LoadLibrary(sofile);
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66
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67 /* Generate an error message if all loads failed */
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68 if ( handle == NULL ) {
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69 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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70 FORMAT_MESSAGE_FROM_SYSTEM),
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71 NULL, GetLastError(),
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72 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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73 errbuf, SDL_arraysize(errbuf), NULL);
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74 loaderror = errbuf;
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75 }
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76 #endif
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77
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78 if ( handle == NULL ) {
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79 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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80 }
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81 return(handle);
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82 }
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83
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84 void *SDL_LoadFunction(void *handle, const char *name)
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85 {
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86 void *symbol = NULL;
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87 const char *loaderror = "Unknown error";
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88
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89 #if defined(_WIN32_WCE)
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90 char errbuf[512];
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91 int length = SDL_strlen(name);
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92
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93 wchar_t *name_t = SDL_malloc((length + 1) * sizeof(wchar_t));
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94 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t));
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95
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96 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length);
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97
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98 symbol = (void *)GetProcAddress((HMODULE)handle, name_t);
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99 if ( symbol == NULL ) {
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100 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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101 FORMAT_MESSAGE_FROM_SYSTEM),
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102 NULL, GetLastError(),
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103 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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104 errbuf_t, SDL_arraysize(errbuf), NULL);
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105 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
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106 loaderror = errbuf;
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107 }
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108
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109 SDL_free(name_t);
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110 SDL_free(errbuf_t);
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111
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112 #else /*if defined(WIN32)*/
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113 char errbuf[512];
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114
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115 symbol = (void *)GetProcAddress((HMODULE)handle, name);
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116 if ( symbol == NULL ) {
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117 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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118 FORMAT_MESSAGE_FROM_SYSTEM),
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119 NULL, GetLastError(),
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120 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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121 errbuf, SDL_arraysize(errbuf), NULL);
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122 loaderror = errbuf;
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123 }
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124 #endif
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125
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126 if ( symbol == NULL ) {
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127 SDL_SetError("Failed loading %s: %s", name, loaderror);
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128 }
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129 return(symbol);
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130 }
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131
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132 void SDL_UnloadObject(void *handle)
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133 {
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134 if ( handle != NULL ) {
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135 FreeLibrary((HMODULE)handle);
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136 }
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137 }
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138
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139 #endif /* SDL_LOADSO_WIN32 */