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annotate src/video/picogui/SDL_pgvideo.c @ 1358:c71e05b4dc2e

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More header massaging... works great on Windows. ;-)
author Sam Lantinga <slouken@libsdl.org>
date Fri, 10 Feb 2006 06:48:43 +0000
parents 604d73db6802
children 19418e4422cb
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 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 Micah Dowty
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23 micahjd@users.sourceforge.net
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24 */
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25
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26 #include "SDL_video.h"
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27 #include "SDL_mouse.h"
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28 #include "SDL_sysvideo.h"
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29 #include "SDL_pixels_c.h"
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30 #include "SDL_events_c.h"
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31
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32 #include "SDL_pgvideo.h"
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33 #include "SDL_pgevents_c.h"
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34
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35 #define PGVID_DRIVER_NAME "picogui"
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36
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37 /* Initialization/Query functions */
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38 static int PG_VideoInit(_THIS, SDL_PixelFormat *vformat);
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39 static SDL_Rect **PG_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
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40 static SDL_Surface *PG_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
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41 static int PG_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
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42 static void PG_VideoQuit(_THIS);
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43
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44 /* Hardware surface functions */
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45 static int PG_AllocHWSurface(_THIS, SDL_Surface *surface);
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46 static int PG_LockHWSurface(_THIS, SDL_Surface *surface);
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47 static void PG_UnlockHWSurface(_THIS, SDL_Surface *surface);
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48 static void PG_FreeHWSurface(_THIS, SDL_Surface *surface);
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49
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50 /* etc. */
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51 static void PG_UpdateRects(_THIS, int numrects, SDL_Rect *rects);
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52
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53 // The implementation dependent data for the window manager cursor
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54 struct WMcursor {
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55 /* Our cursor is a PicoGUI theme */
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56 pghandle theme;
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57 } ;
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58
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59 /* WM functions */
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60 void PG_SetCaption(_THIS, const char *title, const char *icon);
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61 WMcursor * PG_CreateWMCursor (_THIS,Uint8 * data, Uint8 * mask,
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62 int w, int h, int hot_x, int hot_y);
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63 void PG_FreeWMCursor (_THIS, WMcursor * cursor);
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64 void PG_WarpWMCursor(_THIS, Uint16 x, Uint16 y);
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65 int PG_ShowWMCursor (_THIS, WMcursor * cursor);
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66
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67 /* PicoGUI driver bootstrap functions */
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68
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69 static int PG_Available(void)
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70 {
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71 /* FIXME: The current client lib doesn't give a way to see if the picogui
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72 * server is reachable without causing a fatal error if it isn't.
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73 * This should be fixed in cli_c2, but until then assume we can
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74 * connect. Since more common drivers like X11 are probed first anyway,
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75 * this shouldn't be a huge problem.
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76 */
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77 return(1);
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78 }
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79
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80 static void PG_DeleteDevice(SDL_VideoDevice *device)
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81 {
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82 SDL_free(device->hidden);
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83 SDL_free(device);
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84 }
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85
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86 static SDL_VideoDevice *PG_CreateDevice(int devindex)
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87 {
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88 SDL_VideoDevice *device;
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89
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90 /* Initialize all variables that we clean on shutdown */
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91 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
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92 if ( device ) {
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93 SDL_memset(device, 0, (sizeof *device));
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94 device->hidden = (struct SDL_PrivateVideoData *)
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95 SDL_malloc((sizeof *device->hidden));
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96 }
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97 if ( (device == NULL) || (device->hidden == NULL) ) {
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98 SDL_OutOfMemory();
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99 if ( device ) {
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100 SDL_free(device);
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101 }
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102 return(0);
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103 }
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104 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
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105
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106 /* Set the function pointers */
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107 device->VideoInit = PG_VideoInit;
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108 device->ListModes = PG_ListModes;
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109 device->SetVideoMode = PG_SetVideoMode;
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110 device->CreateYUVOverlay = NULL;
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111 device->SetColors = PG_SetColors;
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112 device->UpdateRects = PG_UpdateRects;
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113 device->VideoQuit = PG_VideoQuit;
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114 device->AllocHWSurface = PG_AllocHWSurface;
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115 device->CheckHWBlit = NULL;
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116 device->FillHWRect = NULL;
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117 device->SetHWColorKey = NULL;
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118 device->SetHWAlpha = NULL;
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119 device->LockHWSurface = PG_LockHWSurface;
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120 device->UnlockHWSurface = PG_UnlockHWSurface;
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121 device->FlipHWSurface = NULL;
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122 device->FreeHWSurface = PG_FreeHWSurface;
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123 device->SetCaption = PG_SetCaption;
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124 device->SetIcon = NULL;
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125 device->IconifyWindow = NULL;
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126 device->GrabInput = NULL;
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127
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128 device->PumpEvents = PG_PumpEvents;
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129 device->InitOSKeymap = PG_InitOSKeymap;
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130
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131 device->ShowWMCursor = PG_ShowWMCursor;
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132 device->CreateWMCursor = PG_CreateWMCursor;
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133 device->FreeWMCursor = PG_FreeWMCursor;
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134 device->WarpWMCursor = PG_WarpWMCursor;
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135
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136 device->free = PG_DeleteDevice;
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137
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138 return device;
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139 }
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140
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141 VideoBootStrap PG_bootstrap = {
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parents:
diff changeset
142 PGVID_DRIVER_NAME, "PicoGUI SDL driver",
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parents:
diff changeset
143 PG_Available, PG_CreateDevice
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 };
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
145
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
146
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parents:
diff changeset
147 int PG_VideoInit(_THIS, SDL_PixelFormat *vformat)
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diff changeset
148 {
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parents:
diff changeset
149 /* Connect to the PicoGUI server. No way to process command line args yet,
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150 * but since this is based on SHM it's not important to be able to specify
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
151 * a remote PicoGUI server.
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152 *
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parents:
diff changeset
153 * FIXME: Another nitpick about the current client lib is there's no
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
154 * clean way to indicate that command line args are not available.
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parents:
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155 */
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parents:
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156 pgInit(0,(char**)"");
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parents:
diff changeset
157 this->hidden->mi = *pgGetVideoMode();
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diff changeset
158
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parents:
diff changeset
159 /* Create a picogui application and canvas. We'll populate the canvas later. */
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parents:
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160 this->hidden->wApp = pgRegisterApp(PG_APP_NORMAL,"SDL",0);
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parents:
diff changeset
161 this->hidden->wCanvas = pgNewWidget(PG_WIDGET_CANVAS,0,0);
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parents:
diff changeset
162 pgSetWidget(PGDEFAULT,
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diff changeset
163 PG_WP_SIDE, PG_S_ALL,
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parents:
diff changeset
164 0);
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parents:
diff changeset
165
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166 PG_InitEvents(this);
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parents:
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167
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parents:
diff changeset
168 /* Determine the screen depth.
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parents:
diff changeset
169 * We change this during the SDL_SetVideoMode implementation...
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parents:
diff changeset
170 * Round up to the nearest Bytes per pixel
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171 */
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172 vformat->BitsPerPixel = this->hidden->mi.bpp;
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diff changeset
173 vformat->BytesPerPixel = this->hidden->mi.bpp >> 3;
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174 if (this->hidden->mi.bpp & 7)
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diff changeset
175 vformat->BytesPerPixel++;
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diff changeset
176
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diff changeset
177 /* We're done! */
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178 return(0);
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179 }
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diff changeset
180
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diff changeset
181 SDL_Rect **PG_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
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182 {
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diff changeset
183 return (SDL_Rect **) -1;
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184 }
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diff changeset
185
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diff changeset
186 SDL_Surface *PG_SetVideoMode(_THIS, SDL_Surface *current,
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187 int width, int height, int bpp, Uint32 flags)
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diff changeset
188 {
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189 if ( this->hidden->bitmap ) {
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parents:
diff changeset
190 /* Free old bitmap */
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diff changeset
191 if (current->pixels) {
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
192 shmdt(current->pixels);
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193 current->pixels = NULL;
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194 }
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195 pgDelete(this->hidden->bitmap);
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196 }
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197
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diff changeset
198 /* Allocate the new pixel format for the screen */
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parents:
diff changeset
199 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) {
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200 SDL_SetError("Couldn't allocate new pixel format for requested mode");
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diff changeset
201 return(NULL);
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202 }
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parents:
diff changeset
203
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parents:
diff changeset
204 /* Create a new picogui bitmap */
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205 this->hidden->bitmap = pgCreateBitmap(width,height);
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diff changeset
206 this->hidden->shm = *pgMakeSHMBitmap(this->hidden->bitmap);
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207 current->pixels = shmat(shmget(this->hidden->shm.shm_key,
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diff changeset
208 this->hidden->shm.shm_length,0),NULL,0);
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209
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parents:
diff changeset
210 /* Reset the canvas, and draw persistent and incremental grops.
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parents:
diff changeset
211 * Use mapping and offsets to center it.
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diff changeset
212 */
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diff changeset
213
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diff changeset
214 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_NUKE, 0);
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diff changeset
215
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parents:
diff changeset
216 /* 0. Set the source position during incremental rendering
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diff changeset
217 */
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parents:
diff changeset
218 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 5, PG_GROP_SETSRC,0,0,0,0);
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diff changeset
219 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROPFLAGS, 1, PG_GROPF_INCREMENTAL);
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
220
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parents:
diff changeset
221 /* 1. Incremental bitmap rendering
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diff changeset
222 */
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parents:
diff changeset
223 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 6, PG_GROP_BITMAP,
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diff changeset
224 0,0,0,0,this->hidden->bitmap);
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diff changeset
225 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROPFLAGS, 1, PG_GROPF_INCREMENTAL);
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parents:
diff changeset
226
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
227 /* 2. Normal bitmap rendering
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diff changeset
228 */
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diff changeset
229 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 6, PG_GROP_BITMAP,
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parents:
diff changeset
230 0,0,this->hidden->shm.width,this->hidden->shm.height,this->hidden->bitmap);
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parents:
diff changeset
231
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parents:
diff changeset
232 /* Set up the new mode framebuffer */
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parents:
diff changeset
233 current->flags = 0;
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parents:
diff changeset
234 current->w = this->hidden->shm.width;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 current->h = this->hidden->shm.height;
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parents:
diff changeset
236 current->pitch = this->hidden->shm.pitch;
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parents:
diff changeset
237
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
238 /* Set up pixel format */
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diff changeset
239 current->format->BitsPerPixel = this->hidden->shm.bpp;
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parents:
diff changeset
240 current->format->BytesPerPixel = this->hidden->shm.bpp >> 3;
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parents:
diff changeset
241 if (this->hidden->shm.bpp & 7)
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parents:
diff changeset
242 current->format->BytesPerPixel++;
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parents:
diff changeset
243 current->format->palette = NULL;
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parents:
diff changeset
244 current->format->Rmask = this->hidden->shm.red_mask;
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parents:
diff changeset
245 current->format->Gmask = this->hidden->shm.green_mask;
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parents:
diff changeset
246 current->format->Bmask = this->hidden->shm.blue_mask;
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parents:
diff changeset
247 current->format->Amask = this->hidden->shm.alpha_mask;
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parents:
diff changeset
248 current->format->Rshift = this->hidden->shm.red_shift;
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parents:
diff changeset
249 current->format->Gshift = this->hidden->shm.green_shift;
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parents:
diff changeset
250 current->format->Bshift = this->hidden->shm.blue_shift;
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parents:
diff changeset
251 current->format->Ashift = this->hidden->shm.alpha_shift;
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parents:
diff changeset
252 current->format->Rloss = 8 - this->hidden->shm.red_length;
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parents:
diff changeset
253 current->format->Gloss = 8 - this->hidden->shm.green_length;
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parents:
diff changeset
254 current->format->Bloss = 8 - this->hidden->shm.blue_length;
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parents:
diff changeset
255 current->format->Aloss = 8 - this->hidden->shm.alpha_length;
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parents:
diff changeset
256
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parents:
diff changeset
257 /* Draw the app */
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parents:
diff changeset
258 pgUpdate();
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parents:
diff changeset
259
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parents:
diff changeset
260 /* We're done */
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parents:
diff changeset
261 return(current);
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
262 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 /* We don't actually allow hardware surfaces other than the main one */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 static int PG_AllocHWSurface(_THIS, SDL_Surface *surface)
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
266 {
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
267 return(-1);
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
269 static void PG_FreeHWSurface(_THIS, SDL_Surface *surface)
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parents:
diff changeset
270 {
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
271 return;
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parents:
diff changeset
272 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
273
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 /* We need to wait for vertical retrace on page flipped displays */
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 static int PG_LockHWSurface(_THIS, SDL_Surface *surface)
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276 {
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277 return(0);
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
280 static void PG_UnlockHWSurface(_THIS, SDL_Surface *surface)
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
281 {
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
282 return;
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
283 }
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parents:
diff changeset
284
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
285 static void PG_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
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286 {
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287 int i;
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288
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289 for (i = 0; i < numrects; i++) {
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290 if (rects[i].w <= 0 || rects[i].h <= 0)
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291 continue;
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292
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293 /* Schedule an incremental update for this rectangle, using
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294 * the canvas gropnodes we've loaded beforehand.
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295 */
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296 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_FINDGROP, 1, 0);
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297 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_MOVEGROP, 4,
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298 rects[i].x, rects[i].y,
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299 rects[i].w, rects[i].h);
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300 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_FINDGROP, 1, 1);
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301 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_MOVEGROP, 4,
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302 rects[i].x, rects[i].y,
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303 rects[i].w, rects[i].h);
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304
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305 /* Go perform the update */
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306 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_INCREMENTAL, 0);
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307 pgSubUpdate(this->hidden->wCanvas);
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308 }
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309 }
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310
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311 int PG_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
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312 {
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313 /* do nothing of note. */
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314 return(1);
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315 }
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316
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317 /* Note: If we are terminated, this could be called in the middle of
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318 another SDL video routine -- notably UpdateRects.
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319 */
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320 void PG_VideoQuit(_THIS)
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321 {
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322 if (this->screen->pixels != NULL)
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323 {
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324 shmdt(this->screen->pixels);
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325 this->screen->pixels = NULL;
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326 pgDelete(this->hidden->bitmap);
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327 }
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328 pgDelete(this->hidden->wCanvas);
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329 pgDelete(this->hidden->wApp);
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330 }
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331
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332 void PG_SetCaption(_THIS, const char *title, const char *icon)
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333 {
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334 if (title != NULL)
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335 pgReplaceText(this->hidden->wApp, title);
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336 pgUpdate();
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337 }
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338
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339 /* FIXME: The cursor stuff isn't implemented yet! */
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340
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341 WMcursor * PG_CreateWMCursor (_THIS,Uint8 * data, Uint8 * mask,
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342 int w, int h, int hot_x, int hot_y)
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343 {
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344 static WMcursor dummy;
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345 return &dummy;
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346 }
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347
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348 void PG_FreeWMCursor (_THIS, WMcursor * cursor)
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349 {
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350 }
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351
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352 void PG_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
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353 {
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354 }
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355
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356 int PG_ShowWMCursor (_THIS, WMcursor * cursor)
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357 {
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358 return 1;
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359 }