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annotate src/video/picogui/SDL_pgvideo.c @ 1944:91f41fc124a7

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The AAlib driver is fun, but not worth rewriting for SDL 1.3
author Sam Lantinga <slouken@libsdl.org>
date Wed, 26 Jul 2006 03:24:27 +0000
parents c121d94672cb
children
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 #include "SDL_config.h"
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26
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27 #include "SDL_video.h"
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28 #include "SDL_mouse.h"
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29 #include "../SDL_sysvideo.h"
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30 #include "../SDL_pixels_c.h"
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31 #include "../../events/SDL_events_c.h"
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32
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33 #include "SDL_pgvideo.h"
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34 #include "SDL_pgevents_c.h"
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35
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36 #define PGVID_DRIVER_NAME "picogui"
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37
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38 /* Initialization/Query functions */
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39 static int PG_VideoInit(_THIS, SDL_PixelFormat * vformat);
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40 static SDL_Rect **PG_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags);
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41 static SDL_Surface *PG_SetVideoMode(_THIS, SDL_Surface * current, int width,
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42 int height, int bpp, Uint32 flags);
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43 static int PG_SetColors(_THIS, int firstcolor, int ncolors,
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44 SDL_Color * colors);
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45 static void PG_VideoQuit(_THIS);
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46
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47 /* Hardware surface functions */
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48 static int PG_AllocHWSurface(_THIS, SDL_Surface * surface);
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49 static int PG_LockHWSurface(_THIS, SDL_Surface * surface);
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50 static void PG_UnlockHWSurface(_THIS, SDL_Surface * surface);
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51 static void PG_FreeHWSurface(_THIS, SDL_Surface * surface);
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52
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53 /* etc. */
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54 static void PG_UpdateRects(_THIS, int numrects, SDL_Rect * rects);
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55
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56 // The implementation dependent data for the window manager cursor
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57 struct WMcursor
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58 {
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59 /* Our cursor is a PicoGUI theme */
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60 pghandle theme;
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61 };
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62
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63 /* WM functions */
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64 void PG_SetCaption(_THIS, const char *title, const char *icon);
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65 WMcursor *PG_CreateWMCursor(_THIS, Uint8 * data, Uint8 * mask,
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66 int w, int h, int hot_x, int hot_y);
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67 void PG_FreeWMCursor(_THIS, WMcursor * cursor);
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68 void PG_WarpWMCursor(_THIS, Uint16 x, Uint16 y);
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69 int PG_ShowWMCursor(_THIS, WMcursor * cursor);
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70
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71 /* PicoGUI driver bootstrap functions */
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72
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73 static int
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74 PG_Available(void)
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75 {
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76 /* FIXME: The current client lib doesn't give a way to see if the picogui
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77 * server is reachable without causing a fatal error if it isn't.
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78 * This should be fixed in cli_c2, but until then assume we can
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79 * connect. Since more common drivers like X11 are probed first anyway,
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80 * this shouldn't be a huge problem.
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81 */
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82 return (1);
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83 }
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84
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85 static void
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86 PG_DeleteDevice(SDL_VideoDevice * device)
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87 {
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88 SDL_free(device->hidden);
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89 SDL_free(device);
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90 }
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91
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92 static SDL_VideoDevice *
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93 PG_CreateDevice(int devindex)
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94 {
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95 SDL_VideoDevice *device;
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96
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97 /* Initialize all variables that we clean on shutdown */
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98 device = (SDL_VideoDevice *) SDL_malloc(sizeof(SDL_VideoDevice));
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99 if (device) {
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100 SDL_memset(device, 0, (sizeof *device));
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101 device->hidden = (struct SDL_PrivateVideoData *)
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102 SDL_malloc((sizeof *device->hidden));
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103 }
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104 if ((device == NULL) || (device->hidden == NULL)) {
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105 SDL_OutOfMemory();
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106 if (device) {
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107 SDL_free(device);
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108 }
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109 return (0);
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110 }
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111 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
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112
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113 /* Set the function pointers */
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114 device->VideoInit = PG_VideoInit;
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115 device->ListModes = PG_ListModes;
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116 device->SetVideoMode = PG_SetVideoMode;
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117 device->CreateYUVOverlay = NULL;
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118 device->SetColors = PG_SetColors;
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119 device->UpdateRects = PG_UpdateRects;
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120 device->VideoQuit = PG_VideoQuit;
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121 device->AllocHWSurface = PG_AllocHWSurface;
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122 device->CheckHWBlit = NULL;
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123 device->FillHWRect = NULL;
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124 device->SetHWColorKey = NULL;
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125 device->SetHWAlpha = NULL;
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126 device->LockHWSurface = PG_LockHWSurface;
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127 device->UnlockHWSurface = PG_UnlockHWSurface;
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128 device->FlipHWSurface = NULL;
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129 device->FreeHWSurface = PG_FreeHWSurface;
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130 device->SetCaption = PG_SetCaption;
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131 device->SetIcon = NULL;
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132 device->IconifyWindow = NULL;
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133 device->GrabInput = NULL;
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134
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135 device->PumpEvents = PG_PumpEvents;
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136 device->InitOSKeymap = PG_InitOSKeymap;
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137
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138 device->ShowWMCursor = PG_ShowWMCursor;
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139 device->CreateWMCursor = PG_CreateWMCursor;
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140 device->FreeWMCursor = PG_FreeWMCursor;
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141 device->WarpWMCursor = PG_WarpWMCursor;
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142
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143 device->free = PG_DeleteDevice;
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144
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145 return device;
433
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146 }
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147
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148 VideoBootStrap PG_bootstrap = {
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149 PGVID_DRIVER_NAME, "PicoGUI SDL driver",
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150 PG_Available, PG_CreateDevice
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151 };
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152
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153
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154 int
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155 PG_VideoInit(_THIS, SDL_PixelFormat * vformat)
433
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156 {
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157 /* Connect to the PicoGUI server. No way to process command line args yet,
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158 * but since this is based on SHM it's not important to be able to specify
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159 * a remote PicoGUI server.
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160 *
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161 * FIXME: Another nitpick about the current client lib is there's no
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162 * clean way to indicate that command line args are not available.
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163 */
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164 pgInit(0, (char **) "");
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165 this->hidden->mi = *pgGetVideoMode();
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166
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167 /* Create a picogui application and canvas. We'll populate the canvas later. */
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168 this->hidden->wApp = pgRegisterApp(PG_APP_NORMAL, "SDL", 0);
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169 this->hidden->wCanvas = pgNewWidget(PG_WIDGET_CANVAS, 0, 0);
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170 pgSetWidget(PGDEFAULT, PG_WP_SIDE, PG_S_ALL, 0);
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171
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172 PG_InitEvents(this);
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173
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174 /* Determine the current screen size */
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175 this->info.current_w = this->hidden->mi.lxres;
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176 this->info.current_h = this->hidden->mi.lyres;
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177
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178 /* Determine the screen depth.
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179 * We change this during the SDL_SetVideoMode implementation...
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180 * Round up to the nearest Bytes per pixel
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181 */
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182 vformat->BitsPerPixel = this->hidden->mi.bpp;
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183 vformat->BytesPerPixel = this->hidden->mi.bpp >> 3;
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184 if (this->hidden->mi.bpp & 7)
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185 vformat->BytesPerPixel++;
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186
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187 /* We're done! */
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188 return (0);
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189 }
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190
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191 SDL_Rect **
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192 PG_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags)
433
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193 {
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194 return (SDL_Rect **) - 1;
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195 }
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196
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197 SDL_Surface *
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198 PG_SetVideoMode(_THIS, SDL_Surface * current,
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199 int width, int height, int bpp, Uint32 flags)
433
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200 {
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201 if (this->hidden->bitmap) {
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202 /* Free old bitmap */
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203 if (current->pixels) {
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204 shmdt(current->pixels);
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205 current->pixels = NULL;
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206 }
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207 pgDelete(this->hidden->bitmap);
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208 }
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209
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210 /* Allocate the new pixel format for the screen */
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211 if (!SDL_ReallocFormat(current, bpp, 0, 0, 0, 0)) {
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212 SDL_SetError("Couldn't allocate new pixel format for requested mode");
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213 return (NULL);
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214 }
433
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215
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216 /* Create a new picogui bitmap */
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217 this->hidden->bitmap = pgCreateBitmap(width, height);
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218 this->hidden->shm = *pgMakeSHMBitmap(this->hidden->bitmap);
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219 current->pixels = shmat(shmget(this->hidden->shm.shm_key,
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220 this->hidden->shm.shm_length, 0), NULL, 0);
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221
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diff changeset
222 /* Reset the canvas, and draw persistent and incremental grops.
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223 * Use mapping and offsets to center it.
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224 */
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diff changeset
225
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226 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_NUKE, 0);
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227
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228 /* 0. Set the source position during incremental rendering
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229 */
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230 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 5, PG_GROP_SETSRC, 0, 0,
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diff changeset
231 0, 0);
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232 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROPFLAGS, 1,
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233 PG_GROPF_INCREMENTAL);
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234
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diff changeset
235 /* 1. Incremental bitmap rendering
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236 */
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237 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 6, PG_GROP_BITMAP,
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238 0, 0, 0, 0, this->hidden->bitmap);
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239 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROPFLAGS, 1,
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240 PG_GROPF_INCREMENTAL);
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241
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diff changeset
242 /* 2. Normal bitmap rendering
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diff changeset
243 */
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244 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_GROP, 6, PG_GROP_BITMAP,
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245 0, 0, this->hidden->shm.width, this->hidden->shm.height,
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diff changeset
246 this->hidden->bitmap);
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diff changeset
247
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diff changeset
248 /* Set up the new mode framebuffer */
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diff changeset
249 current->flags = 0;
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diff changeset
250 current->w = this->hidden->shm.width;
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251 current->h = this->hidden->shm.height;
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252 current->pitch = this->hidden->shm.pitch;
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253
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diff changeset
254 /* Set up pixel format */
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diff changeset
255 current->format->BitsPerPixel = this->hidden->shm.bpp;
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diff changeset
256 current->format->BytesPerPixel = this->hidden->shm.bpp >> 3;
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257 if (this->hidden->shm.bpp & 7)
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diff changeset
258 current->format->BytesPerPixel++;
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259 current->format->palette = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
260 current->format->Rmask = this->hidden->shm.red_mask;
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diff changeset
261 current->format->Gmask = this->hidden->shm.green_mask;
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diff changeset
262 current->format->Bmask = this->hidden->shm.blue_mask;
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263 current->format->Amask = this->hidden->shm.alpha_mask;
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diff changeset
264 current->format->Rshift = this->hidden->shm.red_shift;
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diff changeset
265 current->format->Gshift = this->hidden->shm.green_shift;
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266 current->format->Bshift = this->hidden->shm.blue_shift;
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diff changeset
267 current->format->Ashift = this->hidden->shm.alpha_shift;
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268 current->format->Rloss = 8 - this->hidden->shm.red_length;
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269 current->format->Gloss = 8 - this->hidden->shm.green_length;
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270 current->format->Bloss = 8 - this->hidden->shm.blue_length;
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271 current->format->Aloss = 8 - this->hidden->shm.alpha_length;
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272
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273 /* Draw the app */
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274 pgUpdate();
433
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275
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276 /* We're done */
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277 return (current);
433
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278 }
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279
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280 /* We don't actually allow hardware surfaces other than the main one */
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281 static int
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282 PG_AllocHWSurface(_THIS, SDL_Surface * surface)
433
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283 {
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284 return (-1);
433
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285 }
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diff changeset
286 static void
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287 PG_FreeHWSurface(_THIS, SDL_Surface * surface)
433
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288 {
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289 return;
433
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290 }
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291
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292 /* We need to wait for vertical retrace on page flipped displays */
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293 static int
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diff changeset
294 PG_LockHWSurface(_THIS, SDL_Surface * surface)
433
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295 {
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diff changeset
296 return (0);
433
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297 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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298
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diff changeset
299 static void
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diff changeset
300 PG_UnlockHWSurface(_THIS, SDL_Surface * surface)
433
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301 {
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302 return;
433
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303 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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304
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diff changeset
305 static void
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diff changeset
306 PG_UpdateRects(_THIS, int numrects, SDL_Rect * rects)
433
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parents:
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307 {
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diff changeset
308 int i;
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diff changeset
309
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diff changeset
310 for (i = 0; i < numrects; i++) {
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311 if (rects[i].w <= 0 || rects[i].h <= 0)
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312 continue;
433
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313
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diff changeset
314 /* Schedule an incremental update for this rectangle, using
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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315 * the canvas gropnodes we've loaded beforehand.
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316 */
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317 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_FINDGROP, 1, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
318 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_MOVEGROP, 4,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
319 rects[i].x, rects[i].y, rects[i].w, rects[i].h);
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diff changeset
320 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_FINDGROP, 1, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
321 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_MOVEGROP, 4,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
322 rects[i].x, rects[i].y, rects[i].w, rects[i].h);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1545
diff changeset
323
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
324 /* Go perform the update */
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diff changeset
325 pgWriteCmd(this->hidden->wCanvas, PGCANVAS_INCREMENTAL, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1545
diff changeset
326 pgSubUpdate(this->hidden->wCanvas);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1545
diff changeset
327 }
433
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diff changeset
328 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
329
1895
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diff changeset
330 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
331 PG_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color * colors)
433
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parents:
diff changeset
332 {
1895
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diff changeset
333 /* do nothing of note. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1545
diff changeset
334 return (1);
433
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
335 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
336
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
337 /* Note: If we are terminated, this could be called in the middle of
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 another SDL video routine -- notably UpdateRects.
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parents:
diff changeset
339 */
1895
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diff changeset
340 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
341 PG_VideoQuit(_THIS)
433
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parents:
diff changeset
342 {
1895
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diff changeset
343 if (this->screen->pixels != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
344 shmdt(this->screen->pixels);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
345 this->screen->pixels = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
346 pgDelete(this->hidden->bitmap);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
347 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
348 pgDelete(this->hidden->wCanvas);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
349 pgDelete(this->hidden->wApp);
433
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parents:
diff changeset
350 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
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parents:
diff changeset
351
1895
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diff changeset
352 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
353 PG_SetCaption(_THIS, const char *title, const char *icon)
433
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parents:
diff changeset
354 {
1895
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diff changeset
355 if (title != NULL)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
356 pgReplaceText(this->hidden->wApp, title);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
357 pgUpdate();
433
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parents:
diff changeset
358 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
359
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
360 /* FIXME: The cursor stuff isn't implemented yet! */
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parents:
diff changeset
361
1895
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diff changeset
362 WMcursor *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1545
diff changeset
363 PG_CreateWMCursor(_THIS, Uint8 * data, Uint8 * mask,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1545
diff changeset
364 int w, int h, int hot_x, int hot_y)
433
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parents:
diff changeset
365 {
1895
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diff changeset
366 static WMcursor dummy;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
367 return &dummy;
433
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
368 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
369
1895
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diff changeset
370 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
371 PG_FreeWMCursor(_THIS, WMcursor * cursor)
433
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
372 {
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
373 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374
1895
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diff changeset
375 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
376 PG_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
433
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 {
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378 }
706de3956894 Added initial support for PicoGUI (thanks Micah!)
Sam Lantinga <slouken@libsdl.org>
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379
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380 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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381 PG_ShowWMCursor(_THIS, WMcursor * cursor)
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706de3956894 Added initial support for PicoGUI (thanks Micah!)
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382 {
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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383 return 1;
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706de3956894 Added initial support for PicoGUI (thanks Micah!)
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384 }
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385
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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386 /* vi: set ts=4 sw=4 expandtab: */