Mercurial > sdl-ios-xcode
annotate src/thread/riscos/SDL_syssem.c @ 3168:6338b7f2d024
Hi,
I have prepared a set of patches to readd WindowsCE support to SDL 1.3.
I've created a new GAPI/Rawframebuffer and a DirectDraw renderer.
Both renderers are work in progress and there are several unimplemented
cases. (Notably
RenderLine/RenderPoint/RenderFill/QueryTexturePixels/UpdateTexture and
texture blending )
Nevertheless I am successfully using these renderers together with the
SDL software renderer. (On most devices the SDL software renderer will
be much faster as there are only badly optimized vendor drivers available)
I send these patches now in this unpolished state because there seems to
be some interest in win ce and someone has to start supporting SDL 1.3
Now on to the patches:
wince_events_window_fixes.patch
fixes some wince incompatibilities and adds fullscreen support via
SHFullScreen. NOTE: This patch shouldn't have any side effects on
Windows, but I have NOT tested it on Windows, so please double-check.
This patch doesn't dependent on the following ones.
wince_renderers_system.patch
This patch does all necessary modifications to the SDL system.
- it adds the renderers to the configure system
- it adds the renderers to win32video
SDL_ceddrawrender.c
SDL_ceddrawrender.h
SDL_gapirender_c.h
SDL_gapirender.c
SDL_gapirender.h
these files add the new render drivers and should be placed in
src/video/win32
Some notes to people who want to test this:
- I have only compiled sdl with ming32ce, so the VisualC files are not
up to date
- As mingw32ce has no ddraw.h this file must be taken from the MS SDK
and modified to work with gcc
- I had to modify line 2611 in configure.in to
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lcoredll -lcommctrl -lmmtimer
-Wl,--image-base -Wl,0x10000"
otherwise GetCPinfo wouldn't link. If someone knows whats causing this
I'd be happy to hear about it.
It would be great if these patches could make their way into SVN as this
would make collaboration much much easier.
I'm out of office for the next week and therefore will be unavailable
via email.
Regards
Stefan
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 07 Jun 2009 02:44:46 +0000 |
parents | 99210400e8b9 |
children | f7b03b6838cb |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
2859 | 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 /* RISC OS semiphores based on linux code */ |
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25 |
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26 |
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27 #include "SDL_timer.h" |
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28 #include "SDL_thread.h" |
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29 #include "SDL_systhread_c.h" |
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30 |
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31 #if !SDL_THREADS_DISABLED |
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32 |
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33 SDL_sem * |
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34 SDL_CreateSemaphore(Uint32 initial_value) |
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35 { |
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36 SDL_SetError("SDL not configured with thread support"); |
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37 return (SDL_sem *) 0; |
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38 } |
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39 |
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40 void |
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41 SDL_DestroySemaphore(SDL_sem * sem) |
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42 { |
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43 return; |
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44 } |
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45 |
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46 int |
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47 SDL_SemTryWait(SDL_sem * sem) |
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48 { |
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49 SDL_SetError("SDL not configured with thread support"); |
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50 return -1; |
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51 } |
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52 |
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53 int |
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54 SDL_SemWaitTimeout(SDL_sem * sem, Uint32 timeout) |
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55 { |
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56 SDL_SetError("SDL not configured with thread support"); |
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57 return -1; |
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58 } |
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59 |
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60 int |
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61 SDL_SemWait(SDL_sem * sem) |
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62 { |
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63 SDL_SetError("SDL not configured with thread support"); |
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64 return -1; |
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65 } |
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66 |
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67 Uint32 |
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68 SDL_SemValue(SDL_sem * sem) |
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69 { |
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70 return 0; |
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71 } |
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72 |
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73 int |
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74 SDL_SemPost(SDL_sem * sem) |
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75 { |
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76 SDL_SetError("SDL not configured with thread support"); |
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77 return -1; |
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78 } |
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79 |
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80 #else |
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81 |
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82 |
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83 #include <unistd.h> /* For getpid() */ |
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84 #include <pthread.h> |
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85 #include <semaphore.h> |
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86 |
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87 struct SDL_semaphore |
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88 { |
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89 sem_t *sem; |
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90 sem_t sem_data; |
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91 }; |
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92 |
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93 /* Create a semaphore, initialized with value */ |
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94 SDL_sem * |
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95 SDL_CreateSemaphore(Uint32 initial_value) |
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96 { |
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97 SDL_sem *sem = (SDL_sem *) SDL_malloc(sizeof(SDL_sem)); |
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98 if (sem) { |
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99 if (sem_init(&sem->sem_data, 0, initial_value) < 0) { |
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100 SDL_SetError("sem_init() failed"); |
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101 SDL_free(sem); |
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102 sem = NULL; |
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103 } else { |
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104 sem->sem = &sem->sem_data; |
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105 } |
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106 } else { |
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107 SDL_OutOfMemory(); |
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108 } |
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109 return sem; |
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110 } |
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111 |
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112 void |
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113 SDL_DestroySemaphore(SDL_sem * sem) |
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114 { |
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115 if (sem) { |
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116 sem_destroy(sem->sem); |
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117 SDL_free(sem); |
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118 } |
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119 } |
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120 |
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121 int |
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122 SDL_SemTryWait(SDL_sem * sem) |
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123 { |
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124 int retval; |
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125 |
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126 if (!sem) { |
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127 SDL_SetError("Passed a NULL semaphore"); |
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128 return -1; |
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129 } |
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130 retval = SDL_MUTEX_TIMEDOUT; |
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131 if (sem_trywait(sem->sem) == 0) { |
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132 retval = 0; |
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133 } |
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134 return retval; |
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135 } |
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136 |
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137 int |
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138 SDL_SemWait(SDL_sem * sem) |
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139 { |
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140 int retval; |
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141 |
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142 if (!sem) { |
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143 SDL_SetError("Passed a NULL semaphore"); |
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144 return -1; |
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145 } |
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146 |
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147 retval = sem_wait(sem->sem); |
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148 if (retval < 0) { |
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149 SDL_SetError("sem_wait() failed"); |
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150 } |
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151 return retval; |
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152 } |
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153 |
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154 int |
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155 SDL_SemWaitTimeout(SDL_sem * sem, Uint32 timeout) |
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156 { |
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157 int retval; |
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158 |
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159 if (!sem) { |
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160 SDL_SetError("Passed a NULL semaphore"); |
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161 return -1; |
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162 } |
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163 |
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164 /* Try the easy cases first */ |
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165 if (timeout == 0) { |
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166 return SDL_SemTryWait(sem); |
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167 } |
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168 if (timeout == SDL_MUTEX_MAXWAIT) { |
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169 return SDL_SemWait(sem); |
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170 } |
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171 |
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172 /* Ack! We have to busy wait... */ |
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173 timeout += SDL_GetTicks(); |
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174 do { |
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175 retval = SDL_SemTryWait(sem); |
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176 if (retval == 0) { |
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177 break; |
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178 } |
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179 SDL_Delay(1); |
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Final merge of Google Summer of Code 2008 work...
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180 } while (SDL_GetTicks() < timeout); |
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181 |
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182 return retval; |
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183 } |
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184 |
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185 Uint32 |
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186 SDL_SemValue(SDL_sem * sem) |
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187 { |
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188 int ret = 0; |
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189 if (sem) { |
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190 sem_getvalue(sem->sem, &ret); |
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191 if (ret < 0) { |
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192 ret = 0; |
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193 } |
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194 } |
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195 return (Uint32) ret; |
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196 } |
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197 |
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198 int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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199 SDL_SemPost(SDL_sem * sem) |
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200 { |
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201 int retval; |
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202 |
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203 if (!sem) { |
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204 SDL_SetError("Passed a NULL semaphore"); |
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205 return -1; |
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206 } |
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207 |
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208 retval = sem_post(sem->sem); |
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209 if (retval < 0) { |
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210 SDL_SetError("sem_post() failed"); |
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211 } |
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212 return retval; |
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213 } |
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214 |
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New configure-based build system. Still work in progress, but much improved
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215 #endif /* !SDL_THREADS_DISABLED */ |
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216 /* vi: set ts=4 sw=4 expandtab: */ |