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annotate src/video/riscos/SDL_riscosvideo.c @ 3502:98a819296cdc

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Whenever a window becomes fullscreen, shown, unminimized, and has input focus it will change the display to the corresponding fullscreen video mode. If it loses any of those properties the desktop mode will be restored.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Dec 2009 08:56:12 +0000
parents 99210400e8b9
children f7b03b6838cb
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 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 File added by Alan Buckley (alan_baa@hotmail.com) for RISC OS compatability
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26 23 March 2003
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27
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28 Implements RISC OS display device management.
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29 Routines for full screen and wimp modes are split
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30 into other source files.
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31 */
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32
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33 #include "SDL_video.h"
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34 #include "SDL_mouse.h"
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35 #include "SDL_syswm.h"
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36 #include "../SDL_sysvideo.h"
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37 #include "../SDL_pixels_c.h"
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38 #include "../../events/SDL_events_c.h"
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39
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40 #include "SDL_riscostask.h"
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41 #include "SDL_riscosvideo.h"
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42 #include "SDL_riscosevents_c.h"
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43 #include "SDL_riscosmouse_c.h"
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44
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45 #include "kernel.h"
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46 #include "swis.h"
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47
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48 #define RISCOSVID_DRIVER_NAME "riscos"
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49
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50 /* Initialization/Query functions */
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51 static int RISCOS_VideoInit(_THIS, SDL_PixelFormat * vformat);
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52 static void RISCOS_VideoQuit(_THIS);
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53
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54 static SDL_Rect **RISCOS_ListModes(_THIS, SDL_PixelFormat * format,
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55 Uint32 flags);
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56 static SDL_Surface *RISCOS_SetVideoMode(_THIS, SDL_Surface * current,
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57 int width, int height, int bpp,
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58 Uint32 flags);
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59
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60 int RISCOS_GetWmInfo(_THIS, SDL_SysWMinfo * info);
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61
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62 int RISCOS_ToggleFullScreen(_THIS, int fullscreen);
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63 /* Mouse checking */
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64 void RISCOS_CheckMouseMode(_THIS);
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65 extern SDL_GrabMode RISCOS_GrabInput(_THIS, SDL_GrabMode mode);
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66
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67 /* Fullscreen mode functions */
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68 extern SDL_Surface *FULLSCREEN_SetVideoMode(_THIS, SDL_Surface * current,
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69 int width, int height, int bpp,
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70 Uint32 flags);
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71 extern void FULLSCREEN_BuildModeList(_THIS);
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72 extern void FULLSCREEN_SetDeviceMode(_THIS);
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73 extern int FULLSCREEN_ToggleFromWimp(_THIS);
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74
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75 /* Wimp mode functions */
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76 extern SDL_Surface *WIMP_SetVideoMode(_THIS, SDL_Surface * current,
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77 int width, int height, int bpp,
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78 Uint32 flags);
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79 extern void WIMP_DeleteWindow(_THIS);
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80 extern int WIMP_ToggleFromFullScreen(_THIS);
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81
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82 /* Hardware surface functions - common to WIMP and FULLSCREEN */
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83 static int RISCOS_AllocHWSurface(_THIS, SDL_Surface * surface);
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84 static int RISCOS_LockHWSurface(_THIS, SDL_Surface * surface);
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85 static void RISCOS_UnlockHWSurface(_THIS, SDL_Surface * surface);
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86 static void RISCOS_FreeHWSurface(_THIS, SDL_Surface * surface);
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87
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88 /* RISC OS driver bootstrap functions */
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89
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90 static int
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91 RISCOS_Available(void)
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92 {
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93 return (1);
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94 }
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95
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96 static void
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97 RISCOS_DeleteDevice(SDL_VideoDevice * device)
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98 {
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99 SDL_free(device->hidden);
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100 SDL_free(device);
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101 }
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102
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103 static SDL_VideoDevice *
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104 RISCOS_CreateDevice(int devindex)
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105 {
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106 SDL_VideoDevice *device;
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107
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108 /* Initialize all variables that we clean on shutdown */
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109 device = (SDL_VideoDevice *) SDL_malloc(sizeof(SDL_VideoDevice));
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110 if (device) {
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111 SDL_memset(device, 0, (sizeof *device));
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112 device->hidden = (struct SDL_PrivateVideoData *)
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113 SDL_malloc((sizeof *device->hidden));
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114 }
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115 if ((device == NULL) || (device->hidden == NULL)) {
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116 SDL_OutOfMemory();
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117 if (device) {
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118 SDL_free(device);
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119 }
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120 return (0);
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121 }
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122 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
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123
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124 /* Set the function pointers */
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125 device->VideoInit = RISCOS_VideoInit;
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126 device->VideoQuit = RISCOS_VideoQuit;
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127
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128 device->ListModes = RISCOS_ListModes;
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129 device->SetVideoMode = RISCOS_SetVideoMode;
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130 device->CreateYUVOverlay = NULL;
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131 device->AllocHWSurface = RISCOS_AllocHWSurface;
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132 device->CheckHWBlit = NULL;
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133 device->FillHWRect = NULL;
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134 device->SetHWColorKey = NULL;
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135 device->SetHWAlpha = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
136 device->LockHWSurface = RISCOS_LockHWSurface;
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137 device->UnlockHWSurface = RISCOS_UnlockHWSurface;
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138 device->FreeHWSurface = RISCOS_FreeHWSurface;
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diff changeset
139
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diff changeset
140 device->FreeWMCursor = RISCOS_FreeWMCursor;
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141 device->CreateWMCursor = RISCOS_CreateWMCursor;
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142 device->CheckMouseMode = RISCOS_CheckMouseMode;
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143 device->GrabInput = RISCOS_GrabInput;
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144
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145 device->InitOSKeymap = RISCOS_InitOSKeymap;
630
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146
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147 device->GetWMInfo = RISCOS_GetWmInfo;
630
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148
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149 device->free = RISCOS_DeleteDevice;
630
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150
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151 /* Can't get Toggle screen to work if program starts up in Full screen mode so
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152 disable it here and re-enable it when a wimp screen is chosen */
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153 device->ToggleFullScreen = NULL; /*RISCOS_ToggleFullScreen; */
630
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154
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155 /* Set other entries for fullscreen mode */
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156 FULLSCREEN_SetDeviceMode(device);
630
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157
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158 /* Mouse pointer needs to use the WIMP ShowCursor version so
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159 that it doesn't modify the pointer until the SDL Window is
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
160 entered or the application goes full screen */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
161 device->ShowWMCursor = WIMP_ShowWMCursor;
1208
d90b362628ea From: "alan buckley" <alan_baa@hotmail.com>
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162
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163 return device;
630
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164 }
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165
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166 VideoBootStrap RISCOS_bootstrap = {
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167 RISCOSVID_DRIVER_NAME, "RISC OS video driver",
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168 RISCOS_Available, RISCOS_CreateDevice
630
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169 };
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170
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171
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diff changeset
172 int
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173 RISCOS_VideoInit(_THIS, SDL_PixelFormat * vformat)
630
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174 {
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175 _kernel_swi_regs regs;
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176 int vars[4], vals[3];
630
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177
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178 if (RISCOS_InitTask() == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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179 SDL_SetError("Unable to start task");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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180 return 0;
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181 }
630
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182
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183 vars[0] = 9; /* Log base 2 bpp */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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184 vars[1] = 11; /* XWndLimit - num x pixels -1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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185 vars[2] = 12; /* YWndLimit - num y pixels -1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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186 vars[3] = -1; /* Terminate list */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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187 regs.r[0] = (int) vars;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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188 regs.r[1] = (int) vals;
630
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189
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190 _kernel_swi(OS_ReadVduVariables, &regs, &regs);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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191 vformat->BitsPerPixel = (1 << vals[0]);
630
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192
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diff changeset
193 /* Determine the current screen size */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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194 this->info.current_w = vals[1] + 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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195 this->info.current_h = vals[2] + 1;
1545
8d9bb0cf2c2a Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
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diff changeset
196
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diff changeset
197 /* Minimum bpp for SDL is 8 */
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198 if (vformat->BitsPerPixel < 8)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
199 vformat->BitsPerPixel = 8;
630
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200
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diff changeset
201
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diff changeset
202 switch (vformat->BitsPerPixel) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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203 case 15:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
204 case 16:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
205 vformat->Bmask = 0x00007c00;
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206 vformat->Gmask = 0x000003e0;
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diff changeset
207 vformat->Rmask = 0x0000001f;
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208 vformat->BitsPerPixel = 16; /* SDL wants actual number of bits used */
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diff changeset
209 vformat->BytesPerPixel = 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
210 break;
630
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211
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diff changeset
212 case 24:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
213 case 32:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
214 vformat->Bmask = 0x00ff0000;
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215 vformat->Gmask = 0x0000ff00;
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216 vformat->Rmask = 0x000000ff;
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217 vformat->BytesPerPixel = 4;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
218 break;
630
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diff changeset
219
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diff changeset
220 default:
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diff changeset
221 vformat->Bmask = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
222 vformat->Gmask = 0;
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223 vformat->Rmask = 0;
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diff changeset
224 vformat->BytesPerPixel = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
225 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
226 }
630
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227
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228 /* Fill in some window manager capabilities */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
229 this->info.wm_available = 1;
630
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diff changeset
230
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diff changeset
231 /* We're done! */
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232 return (0);
630
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233 }
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234
550bccdf04bd Added initial support for RISC OS (thanks Peter Naulls!)
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diff changeset
235 /* Note: If we are terminated, this could be called in the middle of
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236 another SDL video routine -- notably UpdateRects.
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237 */
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diff changeset
238 void
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239 RISCOS_VideoQuit(_THIS)
630
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240 {
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241 RISCOS_ExitTask();
630
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242
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diff changeset
243 if (this->hidden->alloc_bank)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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244 SDL_free(this->hidden->alloc_bank);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
245 this->hidden->alloc_bank = 0;
630
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diff changeset
246 }
550bccdf04bd Added initial support for RISC OS (thanks Peter Naulls!)
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diff changeset
247
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parents:
diff changeset
248
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diff changeset
249 SDL_Rect **
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
250 RISCOS_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags)
630
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parents:
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251 {
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diff changeset
252 if (flags & SDL_FULLSCREEN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
253 /* Build mode list when first required. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
254 if (SDL_nummodes[0] == 0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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255 FULLSCREEN_BuildModeList(this);
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256
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257 return (SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1]);
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258 } else
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259 return (SDL_Rect **) - 1;
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260 }
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261
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262
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263 /* Set up video mode */
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264 SDL_Surface *
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265 RISCOS_SetVideoMode(_THIS, SDL_Surface * current,
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266 int width, int height, int bpp, Uint32 flags)
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267 {
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268 if (flags & SDL_FULLSCREEN) {
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269 RISCOS_StoreWimpMode();
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270 /* Dump wimp window on switch to full screen */
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271 if (this->hidden->window_handle)
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272 WIMP_DeleteWindow(this);
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273
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274 return FULLSCREEN_SetVideoMode(this, current, width, height, bpp,
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275 flags);
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276 } else {
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277 RISCOS_RestoreWimpMode();
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278 return WIMP_SetVideoMode(this, current, width, height, bpp, flags);
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279 }
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280 }
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281
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282
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283 /* We don't actually allow hardware surfaces other than the main one */
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284 static int
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285 RISCOS_AllocHWSurface(_THIS, SDL_Surface * surface)
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286 {
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287 return (-1);
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288 }
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289
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290 static void
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291 RISCOS_FreeHWSurface(_THIS, SDL_Surface * surface)
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292 {
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293 return;
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294 }
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295
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296 /* We need to wait for vertical retrace on page flipped displays */
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297 static int
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298 RISCOS_LockHWSurface(_THIS, SDL_Surface * surface)
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299 {
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300 return (0);
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301 }
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302
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303 static void
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304 RISCOS_UnlockHWSurface(_THIS, SDL_Surface * surface)
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305 {
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306 return;
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307 }
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308
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309
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310 int
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311 RISCOS_GetWmInfo(_THIS, SDL_SysWMinfo * info)
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312 {
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313 SDL_VERSION(&(info->version));
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314 info->wimpVersion = RISCOS_GetWimpVersion();
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315 info->taskHandle = RISCOS_GetTaskHandle();
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316 info->window = this->hidden->window_handle;
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317
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318 return 1;
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319 }
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320
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321 /* Toggle full screen mode.
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322 Returns 1 if successful otherwise 0
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323 */
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324
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325 int
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326 RISCOS_ToggleFullScreen(_THIS, int fullscreen)
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327 {
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328 if (fullscreen) {
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329 return FULLSCREEN_ToggleFromWimp(this);
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330 } else {
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331 return WIMP_ToggleFromFullScreen(this);
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332 }
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333
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334 return 0;
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335 }
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336
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337 /* vi: set ts=4 sw=4 expandtab: */