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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999 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@devolution.com
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #include <stdio.h>
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29 #include <stdlib.h>
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30 #include <malloc.h>
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31 #include <windows.h>
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32
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33 /* Not yet in the mingw32 cross-compile headers */
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34 #ifndef CDS_FULLSCREEN
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35 #define CDS_FULLSCREEN 4
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36 #endif
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37
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38 #include "SDL.h"
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39 #include "SDL_mutex.h"
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40 #include "SDL_syswm.h"
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41 #include "SDL_sysvideo.h"
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42 #include "SDL_sysevents.h"
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43 #include "SDL_events_c.h"
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44 #include "SDL_pixels_c.h"
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45 #include "SDL_dibvideo.h"
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46 #include "SDL_syswm_c.h"
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47 #include "SDL_sysmouse_c.h"
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48 #include "SDL_dibevents_c.h"
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49 #include "SDL_wingl_c.h"
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50
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51 #ifdef _WIN32_WCE
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52 #define NO_GETDIBITS
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53 #define NO_CHANGEDISPLAYSETTINGS
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54 #define NO_GAMMA_SUPPORT
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55 #endif
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56
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57 /* Initialization/Query functions */
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58 static int DIB_VideoInit(_THIS, SDL_PixelFormat *vformat);
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59 static SDL_Rect **DIB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
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60 SDL_Surface *DIB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
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61 static int DIB_SetColors(_THIS, int firstcolor, int ncolors,
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62 SDL_Color *colors);
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63 static void DIB_CheckGamma(_THIS);
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64 static void DIB_SwapGamma(_THIS);
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65 static void DIB_QuitGamma(_THIS);
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66 #ifndef NO_GAMMA_SUPPORT
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67 static int DIB_SetGammaRamp(_THIS, Uint16 *ramp);
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68 static int DIB_GetGammaRamp(_THIS, Uint16 *ramp);
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69 #endif
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70 static void DIB_VideoQuit(_THIS);
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71
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72 /* Hardware surface functions */
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73 static int DIB_AllocHWSurface(_THIS, SDL_Surface *surface);
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74 static int DIB_LockHWSurface(_THIS, SDL_Surface *surface);
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75 static void DIB_UnlockHWSurface(_THIS, SDL_Surface *surface);
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76 static void DIB_FreeHWSurface(_THIS, SDL_Surface *surface);
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77
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78 /* Windows message handling functions */
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79 static void DIB_RealizePalette(_THIS);
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80 static void DIB_PaletteChanged(_THIS, HWND window);
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81 static void DIB_WinPAINT(_THIS, HDC hdc);
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82
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83 /* helper fn */
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84 static int DIB_SussScreenDepth();
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85
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86 /* DIB driver bootstrap functions */
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87
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88 static int DIB_Available(void)
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89 {
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90 return(1);
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91 }
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92
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93 static void DIB_DeleteDevice(SDL_VideoDevice *device)
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94 {
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95 if ( device ) {
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96 if ( device->hidden ) {
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97 free(device->hidden);
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98 }
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99 if ( device->gl_data ) {
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100 free(device->gl_data);
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101 }
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102 free(device);
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103 }
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104 }
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105
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106 static SDL_VideoDevice *DIB_CreateDevice(int devindex)
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107 {
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108 SDL_VideoDevice *device;
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109
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110 /* Initialize all variables that we clean on shutdown */
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111 device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
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112 if ( device ) {
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113 memset(device, 0, (sizeof *device));
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114 device->hidden = (struct SDL_PrivateVideoData *)
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115 malloc((sizeof *device->hidden));
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116 device->gl_data = (struct SDL_PrivateGLData *)
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117 malloc((sizeof *device->gl_data));
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118 }
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119 if ( (device == NULL) || (device->hidden == NULL) ||
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120 (device->gl_data == NULL) ) {
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121 SDL_OutOfMemory();
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122 DIB_DeleteDevice(device);
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123 return(NULL);
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124 }
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125 memset(device->hidden, 0, (sizeof *device->hidden));
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126 memset(device->gl_data, 0, (sizeof *device->gl_data));
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127
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128 /* Set the function pointers */
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129 device->VideoInit = DIB_VideoInit;
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130 device->ListModes = DIB_ListModes;
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131 device->SetVideoMode = DIB_SetVideoMode;
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132 device->UpdateMouse = WIN_UpdateMouse;
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133 device->SetColors = DIB_SetColors;
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134 device->UpdateRects = NULL;
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135 device->VideoQuit = DIB_VideoQuit;
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136 device->AllocHWSurface = DIB_AllocHWSurface;
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137 device->CheckHWBlit = NULL;
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138 device->FillHWRect = NULL;
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139 device->SetHWColorKey = NULL;
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140 device->SetHWAlpha = NULL;
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141 device->LockHWSurface = DIB_LockHWSurface;
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142 device->UnlockHWSurface = DIB_UnlockHWSurface;
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143 device->FlipHWSurface = NULL;
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144 device->FreeHWSurface = DIB_FreeHWSurface;
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145 #ifndef NO_GAMMA_SUPPORT
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146 device->SetGammaRamp = DIB_SetGammaRamp;
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147 device->GetGammaRamp = DIB_GetGammaRamp;
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148 #endif
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149 #ifdef HAVE_OPENGL
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150 device->GL_LoadLibrary = WIN_GL_LoadLibrary;
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151 device->GL_GetProcAddress = WIN_GL_GetProcAddress;
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152 device->GL_GetAttribute = WIN_GL_GetAttribute;
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153 device->GL_MakeCurrent = WIN_GL_MakeCurrent;
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154 device->GL_SwapBuffers = WIN_GL_SwapBuffers;
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155 #endif
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156 device->SetCaption = WIN_SetWMCaption;
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157 device->SetIcon = WIN_SetWMIcon;
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158 device->IconifyWindow = WIN_IconifyWindow;
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159 device->GrabInput = WIN_GrabInput;
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160 device->GetWMInfo = WIN_GetWMInfo;
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161 device->FreeWMCursor = WIN_FreeWMCursor;
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162 device->CreateWMCursor = WIN_CreateWMCursor;
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163 device->ShowWMCursor = WIN_ShowWMCursor;
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164 device->WarpWMCursor = WIN_WarpWMCursor;
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165 device->CheckMouseMode = WIN_CheckMouseMode;
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166 device->InitOSKeymap = DIB_InitOSKeymap;
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167 device->PumpEvents = DIB_PumpEvents;
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168
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169 /* Set up the windows message handling functions */
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170 WIN_RealizePalette = DIB_RealizePalette;
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171 WIN_PaletteChanged = DIB_PaletteChanged;
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172 WIN_SwapGamma = DIB_SwapGamma;
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173 WIN_WinPAINT = DIB_WinPAINT;
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174 HandleMessage = DIB_HandleMessage;
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175
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176 device->free = DIB_DeleteDevice;
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177
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178 /* We're finally ready */
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179 return device;
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180 }
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181
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182 VideoBootStrap WINDIB_bootstrap = {
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183 "windib", "Win95/98/NT/2000 GDI",
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184 DIB_Available, DIB_CreateDevice
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185 };
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186
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187 #ifndef NO_CHANGEDISPLAYSETTINGS
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188
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189 static int cmpmodes(const void *va, const void *vb)
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190 {
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191 SDL_Rect *a = *(SDL_Rect **)va;
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192 SDL_Rect *b = *(SDL_Rect **)vb;
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193 if(a->w > b->w)
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194 return -1;
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195 return b->h - a->h;
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196 }
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197
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198 static int DIB_AddMode(_THIS, int bpp, int w, int h)
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199 {
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200 SDL_Rect *mode;
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201 int i, index;
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202 int next_mode;
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203
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204 /* Check to see if we already have this mode */
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205 if ( bpp < 8 ) { /* Not supported */
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206 return(0);
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207 }
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208 index = ((bpp+7)/8)-1;
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209 for ( i=0; i<SDL_nummodes[index]; ++i ) {
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210 mode = SDL_modelist[index][i];
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211 if ( (mode->w == w) && (mode->h == h) ) {
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212 return(0);
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213 }
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214 }
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215
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216 /* Set up the new video mode rectangle */
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217 mode = (SDL_Rect *)malloc(sizeof *mode);
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218 if ( mode == NULL ) {
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219 SDL_OutOfMemory();
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220 return(-1);
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221 }
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222 mode->x = 0;
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223 mode->y = 0;
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224 mode->w = w;
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225 mode->h = h;
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226
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227 /* Allocate the new list of modes, and fill in the new mode */
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228 next_mode = SDL_nummodes[index];
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229 SDL_modelist[index] = (SDL_Rect **)
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230 realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *));
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231 if ( SDL_modelist[index] == NULL ) {
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232 SDL_OutOfMemory();
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233 SDL_nummodes[index] = 0;
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234 free(mode);
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235 return(-1);
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236 }
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237 SDL_modelist[index][next_mode] = mode;
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238 SDL_modelist[index][next_mode+1] = NULL;
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239 SDL_nummodes[index]++;
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240
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241 return(0);
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242 }
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243
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244 #endif /* !NO_CHANGEDISPLAYSETTINGS */
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245
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246 static HPALETTE DIB_CreatePalette(int bpp)
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247 {
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248 /* RJR: March 28, 2000
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249 moved palette creation here from "DIB_VideoInit" */
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250
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251 HPALETTE handle = NULL;
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252
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253 if ( bpp <= 8 )
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254 {
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255 LOGPALETTE *palette;
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256 HDC hdc;
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257 int ncolors;
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258 int i;
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259
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260 ncolors = 1;
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261 for ( i=0; i<bpp; ++i ) {
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262 ncolors *= 2;
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263 }
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264 palette = (LOGPALETTE *)malloc(sizeof(*palette)+
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265 ncolors*sizeof(PALETTEENTRY));
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266 palette->palVersion = 0x300;
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267 palette->palNumEntries = ncolors;
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268 hdc = GetDC(SDL_Window);
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269 GetSystemPaletteEntries(hdc, 0, ncolors, palette->palPalEntry);
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270 ReleaseDC(SDL_Window, hdc);
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271 handle = CreatePalette(palette);
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272 free(palette);
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273 }
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274
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275 return handle;
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276 }
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277
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278 int DIB_VideoInit(_THIS, SDL_PixelFormat *vformat)
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279 {
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280 #ifndef NO_CHANGEDISPLAYSETTINGS
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281 int i;
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282 DEVMODE settings;
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283 #endif
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284
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285 /* Create the window */
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286 if ( DIB_CreateWindow(this) < 0 ) {
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287 return(-1);
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288 }
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289 DX5_SoundFocus(SDL_Window);
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290
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291 /* Determine the screen depth */
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292 vformat->BitsPerPixel = DIB_SussScreenDepth();
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293 switch (vformat->BitsPerPixel) {
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294 case 15:
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295 vformat->Rmask = 0x00007c00;
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296 vformat->Gmask = 0x000003e0;
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297 vformat->Bmask = 0x0000001f;
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298 vformat->BitsPerPixel = 16;
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299 break;
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300 case 16:
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301 vformat->Rmask = 0x0000f800;
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302 vformat->Gmask = 0x000007e0;
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303 vformat->Bmask = 0x0000001f;
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304 break;
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305 case 24:
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306 case 32:
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307 /* GDI defined as 8-8-8 */
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308 vformat->Rmask = 0x00ff0000;
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309 vformat->Gmask = 0x0000ff00;
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310 vformat->Bmask = 0x000000ff;
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311 break;
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312 default:
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313 break;
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314 }
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315
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316 /* See if gamma is supported on this screen */
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317 DIB_CheckGamma(this);
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318
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319 #ifndef NO_CHANGEDISPLAYSETTINGS
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320 /* Query for the list of available video modes */
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321 for ( i=0; EnumDisplaySettings(NULL, i, &settings); ++i ) {
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322 DIB_AddMode(this, settings.dmBitsPerPel,
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323 settings.dmPelsWidth, settings.dmPelsHeight);
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324 }
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325 /* Sort the mode lists */
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326 for ( i=0; i<NUM_MODELISTS; ++i ) {
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327 if ( SDL_nummodes[i] > 0 ) {
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328 qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes);
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329 }
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330 }
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331 #endif /* !NO_CHANGEDISPLAYSETTINGS */
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332
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333 /* Grab an identity palette if we are in a palettized mode */
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334 if ( vformat->BitsPerPixel <= 8 ) {
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335 /* RJR: March 28, 2000
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336 moved palette creation to "DIB_CreatePalette" */
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337 screen_pal = DIB_CreatePalette(vformat->BitsPerPixel);
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338 }
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339
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340 /* Fill in some window manager capabilities */
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341 this->info.wm_available = 1;
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342
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343 /* We're done! */
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344 return(0);
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345 }
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346
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347 /* We support any format at any dimension */
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348 SDL_Rect **DIB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
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349 {
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350 #ifdef NO_CHANGEDISPLAYSETTINGS
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351 return((SDL_Rect **)-1);
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352 #else
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353 if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
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354 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]);
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355 } else {
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356 return((SDL_Rect **)-1);
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357 }
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358 #endif
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359 }
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360
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361
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362 /*
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363 Helper fn to work out which screen depth windows is currently using.
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364 15 bit mode is considered 555 format, 16 bit is 565.
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365 returns 0 for unknown mode.
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366 (Derived from code in sept 1999 Windows Developer Journal
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367 http://www.wdj.com/code/archive.html)
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368 */
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369 static int DIB_SussScreenDepth()
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370 {
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371 #ifdef NO_GETDIBITS
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372 int depth;
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373 HDC hdc;
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374
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375 hdc = GetDC(SDL_Window);
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376 depth = GetDeviceCaps(hdc, PLANES) * GetDeviceCaps(hdc, BITSPIXEL);
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377 ReleaseDC(SDL_Window, hdc);
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378 if ( depth == 16 ) {
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379 depth = 15; /* GDI defined as RGB 555 */
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380 }
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381 return(depth);
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382 #else
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383 int dib_size;
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384 LPBITMAPINFOHEADER dib_hdr;
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385 HDC hdc;
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386 HBITMAP hbm;
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387
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388 /* Allocate enough space for a DIB header plus palette (for
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389 * 8-bit modes) or bitfields (for 16- and 32-bit modes)
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390 */
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391 dib_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD);
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392 dib_hdr = (LPBITMAPINFOHEADER) malloc(dib_size);
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393 memset(dib_hdr, 0, dib_size);
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394 dib_hdr->biSize = sizeof(BITMAPINFOHEADER);
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395
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396 /* Get a device-dependent bitmap that's compatible with the
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397 screen.
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398 */
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399 hdc = GetDC(NULL);
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400 hbm = CreateCompatibleBitmap( hdc, 1, 1 );
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401
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402 /* Convert the DDB to a DIB. We need to call GetDIBits twice:
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403 * the first call just fills in the BITMAPINFOHEADER; the
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404 * second fills in the bitfields or palette.
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405 */
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406 GetDIBits(hdc, hbm, 0, 1, NULL, (LPBITMAPINFO) dib_hdr, DIB_RGB_COLORS);
|
|
|
407 GetDIBits(hdc, hbm, 0, 1, NULL, (LPBITMAPINFO) dib_hdr, DIB_RGB_COLORS);
|
|
|
408 DeleteObject(hbm);
|
|
|
409 ReleaseDC(NULL, hdc);
|
|
|
410
|
|
|
411 switch( dib_hdr->biBitCount )
|
|
|
412 {
|
|
|
413 case 8: return 8;
|
|
|
414 case 24: return 24;
|
|
|
415 case 32: return 32;
|
|
|
416 case 16:
|
|
|
417 if( dib_hdr->biCompression == BI_BITFIELDS ) {
|
|
|
418 /* check the red mask */
|
|
|
419 switch( ((DWORD*)((char*)dib_hdr + dib_hdr->biSize))[0] ) {
|
|
|
420 case 0xf800: return 16; /* 565 */
|
|
|
421 case 0x7c00: return 15; /* 555 */
|
|
|
422 }
|
|
|
423 }
|
|
|
424 }
|
|
|
425 return 0; /* poo. */
|
|
|
426 #endif /* NO_GETDIBITS */
|
|
|
427 }
|
|
|
428
|
|
|
429
|
|
|
430 /* Various screen update functions available */
|
|
|
431 static void DIB_NormalUpdate(_THIS, int numrects, SDL_Rect *rects);
|
|
|
432
|
|
|
433 SDL_Surface *DIB_SetVideoMode(_THIS, SDL_Surface *current,
|
|
|
434 int width, int height, int bpp, Uint32 flags)
|
|
|
435 {
|
|
|
436 SDL_Surface *video;
|
|
|
437 Uint32 prev_flags;
|
|
|
438 DWORD style;
|
|
|
439 const DWORD directstyle =
|
|
|
440 (WS_POPUP);
|
|
|
441 const DWORD windowstyle =
|
|
|
442 (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX);
|
|
|
443 const DWORD resizestyle =
|
|
|
444 (WS_THICKFRAME|WS_MAXIMIZEBOX);
|
|
|
445 int binfo_size;
|
|
|
446 BITMAPINFO *binfo;
|
|
|
447 HDC hdc;
|
|
|
448 RECT bounds;
|
|
|
449 int x, y;
|
|
|
450 BOOL was_visible;
|
|
|
451 Uint32 Rmask, Gmask, Bmask;
|
|
|
452
|
|
|
453 /* See whether or not we should center the window */
|
|
|
454 was_visible = IsWindowVisible(SDL_Window);
|
|
|
455
|
|
|
456 /* Clean up any GL context that may be hanging around */
|
|
|
457 if ( current->flags & SDL_OPENGL ) {
|
|
|
458 WIN_GL_ShutDown(this);
|
|
|
459 }
|
|
|
460
|
|
|
461 /* Recalculate the bitmasks if necessary */
|
|
|
462 if ( bpp == current->format->BitsPerPixel ) {
|
|
|
463 video = current;
|
|
|
464 } else {
|
|
|
465 switch (bpp) {
|
|
|
466 case 15:
|
|
|
467 case 16:
|
|
|
468 if ( DIB_SussScreenDepth() == 15 ) {
|
|
|
469 /* 5-5-5 */
|
|
|
470 Rmask = 0x00007c00;
|
|
|
471 Gmask = 0x000003e0;
|
|
|
472 Bmask = 0x0000001f;
|
|
|
473 } else {
|
|
|
474 /* 5-6-5 */
|
|
|
475 Rmask = 0x0000f800;
|
|
|
476 Gmask = 0x000007e0;
|
|
|
477 Bmask = 0x0000001f;
|
|
|
478 }
|
|
|
479 break;
|
|
|
480 case 24:
|
|
|
481 case 32:
|
|
|
482 /* GDI defined as 8-8-8 */
|
|
|
483 Rmask = 0x00ff0000;
|
|
|
484 Gmask = 0x0000ff00;
|
|
|
485 Bmask = 0x000000ff;
|
|
|
486 break;
|
|
|
487 default:
|
|
|
488 Rmask = 0x00000000;
|
|
|
489 Gmask = 0x00000000;
|
|
|
490 Bmask = 0x00000000;
|
|
|
491 break;
|
|
|
492 }
|
|
|
493 video = SDL_CreateRGBSurface(SDL_SWSURFACE,
|
|
|
494 0, 0, bpp, Rmask, Gmask, Bmask, 0);
|
|
|
495 if ( video == NULL ) {
|
|
|
496 SDL_OutOfMemory();
|
|
|
497 return(NULL);
|
|
|
498 }
|
|
|
499 }
|
|
|
500
|
|
|
501 /* Fill in part of the video surface */
|
|
|
502 prev_flags = video->flags;
|
|
|
503 video->flags = 0; /* Clear flags */
|
|
|
504 video->w = width;
|
|
|
505 video->h = height;
|
|
|
506 video->pitch = SDL_CalculatePitch(video);
|
|
|
507
|
|
|
508 #ifndef NO_CHANGEDISPLAYSETTINGS
|
|
|
509 /* Set fullscreen mode if appropriate */
|
|
|
510 if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
|
|
|
511 DEVMODE settings;
|
|
|
512
|
|
|
513 memset(&settings, 0, sizeof(DEVMODE));
|
|
|
514 settings.dmSize = sizeof(DEVMODE);
|
|
|
515 settings.dmBitsPerPel = video->format->BitsPerPixel;
|
|
|
516 settings.dmPelsWidth = width;
|
|
|
517 settings.dmPelsHeight = height;
|
|
|
518 settings.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
|
|
|
519 if ( ChangeDisplaySettings(&settings, CDS_FULLSCREEN) == DISP_CHANGE_SUCCESSFUL ) {
|
|
|
520 video->flags |= SDL_FULLSCREEN;
|
|
|
521 if ( screen_pal != NULL ) {
|
|
|
522 /* RJR: March 28, 2000
|
|
|
523 delete identity palette if switching from a palettized mode */
|
|
|
524 DeleteObject(screen_pal);
|
|
|
525 screen_pal = NULL;
|
|
|
526 }
|
|
|
527 if ( bpp <= 8 )
|
|
|
528 {
|
|
|
529 /* RJR: March 28, 2000
|
|
|
530 create identity palette switching to a palettized mode */
|
|
|
531 screen_pal = DIB_CreatePalette(bpp);
|
|
|
532 }
|
|
|
533 }
|
|
|
534 }
|
|
|
535 #endif /* !NO_CHANGEDISPLAYSETTINGS */
|
|
|
536
|
|
|
537 style = GetWindowLong(SDL_Window, GWL_STYLE);
|
|
|
538 style &= ~(resizestyle|WS_MAXIMIZE);
|
|
|
539 if ( (video->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
|
|
|
540 style &= ~windowstyle;
|
|
|
541 style |= directstyle;
|
|
|
542 } else {
|
|
|
543 #ifndef NO_CHANGEDISPLAYSETTINGS
|
|
|
544 if ( (prev_flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
|
|
|
545 ChangeDisplaySettings(NULL, 0);
|
|
|
546 }
|
|
|
547 #endif
|
|
|
548 if ( flags & SDL_NOFRAME ) {
|
|
|
549 style &= ~windowstyle;
|
|
|
550 style |= directstyle;
|
|
|
551 video->flags |= SDL_NOFRAME;
|
|
|
552 } else {
|
|
|
553 style &= ~directstyle;
|
|
|
554 style |= windowstyle;
|
|
|
555 if ( flags & SDL_RESIZABLE ) {
|
|
|
556 style |= resizestyle;
|
|
|
557 video->flags |= SDL_RESIZABLE;
|
|
|
558 }
|
|
|
559 }
|
|
|
560 if (IsZoomed(SDL_Window)) style |= WS_MAXIMIZE;
|
|
|
561 }
|
|
|
562 SetWindowLong(SDL_Window, GWL_STYLE, style);
|
|
|
563
|
|
|
564 /* Delete the old bitmap if necessary */
|
|
|
565 if ( screen_bmp != NULL ) {
|
|
|
566 DeleteObject(screen_bmp);
|
|
|
567 }
|
|
|
568 if ( ! (flags & SDL_OPENGL) ) {
|
|
|
569 BOOL is16bitmode = (video->format->BytesPerPixel == 2);
|
|
|
570
|
|
|
571 /* Suss out the bitmap info header */
|
|
|
572 binfo_size = sizeof(*binfo);
|
|
|
573 if( is16bitmode ) {
|
|
|
574 /* 16bit modes, palette area used for rgb bitmasks */
|
|
|
575 binfo_size += 3*sizeof(DWORD);
|
|
|
576 } else if ( video->format->palette ) {
|
|
|
577 binfo_size += video->format->palette->ncolors *
|
|
|
578 sizeof(RGBQUAD);
|
|
|
579 }
|
|
|
580 binfo = (BITMAPINFO *)malloc(binfo_size);
|
|
|
581 if ( ! binfo ) {
|
|
|
582 if ( video != current ) {
|
|
|
583 SDL_FreeSurface(video);
|
|
|
584 }
|
|
|
585 SDL_OutOfMemory();
|
|
|
586 return(NULL);
|
|
|
587 }
|
|
|
588
|
|
|
589 binfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
|
|
|
590 binfo->bmiHeader.biWidth = video->w;
|
|
|
591 binfo->bmiHeader.biHeight = -video->h; /* -ve for topdown bitmap */
|
|
|
592 binfo->bmiHeader.biPlanes = 1;
|
|
|
593 binfo->bmiHeader.biSizeImage = video->h * video->pitch;
|
|
|
594 binfo->bmiHeader.biXPelsPerMeter = 0;
|
|
|
595 binfo->bmiHeader.biYPelsPerMeter = 0;
|
|
|
596 binfo->bmiHeader.biClrUsed = 0;
|
|
|
597 binfo->bmiHeader.biClrImportant = 0;
|
|
|
598 binfo->bmiHeader.biBitCount = video->format->BitsPerPixel;
|
|
|
599
|
|
|
600 if ( is16bitmode ) {
|
|
|
601 /* BI_BITFIELDS tells CreateDIBSection about the rgb masks in the palette */
|
|
|
602 binfo->bmiHeader.biCompression = BI_BITFIELDS;
|
|
|
603 ((Uint32*)binfo->bmiColors)[0] = video->format->Rmask;
|
|
|
604 ((Uint32*)binfo->bmiColors)[1] = video->format->Gmask;
|
|
|
605 ((Uint32*)binfo->bmiColors)[2] = video->format->Bmask;
|
|
|
606 } else {
|
|
|
607 binfo->bmiHeader.biCompression = BI_RGB; /* BI_BITFIELDS for 565 vs 555 */
|
|
|
608 if ( video->format->palette ) {
|
|
|
609 memset(binfo->bmiColors, 0,
|
|
|
610 video->format->palette->ncolors*sizeof(RGBQUAD));
|
|
|
611 }
|
|
|
612 }
|
|
|
613
|
|
|
614 /* Create the offscreen bitmap buffer */
|
|
|
615 hdc = GetDC(SDL_Window);
|
|
|
616 screen_bmp = CreateDIBSection(hdc, binfo, DIB_RGB_COLORS,
|
|
|
617 (void **)(&video->pixels), NULL, 0);
|
|
|
618 ReleaseDC(SDL_Window, hdc);
|
|
|
619 free(binfo);
|
|
|
620 if ( screen_bmp == NULL ) {
|
|
|
621 if ( video != current ) {
|
|
|
622 SDL_FreeSurface(video);
|
|
|
623 }
|
|
|
624 SDL_SetError("Couldn't create DIB section");
|
|
|
625 return(NULL);
|
|
|
626 }
|
|
|
627 this->UpdateRects = DIB_NormalUpdate;
|
|
|
628
|
|
|
629 /* Set video surface flags */
|
|
|
630 if ( bpp <= 8 ) {
|
|
|
631 /* BitBlt() maps colors for us */
|
|
|
632 video->flags |= SDL_HWPALETTE;
|
|
|
633 }
|
|
|
634 }
|
|
|
635
|
|
|
636 /* Resize the window */
|
|
|
637 if ( SDL_windowid == NULL ) {
|
|
|
638 UINT swp_flags;
|
|
|
639
|
|
|
640 SDL_resizing = 1;
|
|
|
641 bounds.left = 0;
|
|
|
642 bounds.top = 0;
|
|
|
643 bounds.right = video->w;
|
|
|
644 bounds.bottom = video->h;
|
|
|
645 AdjustWindowRect(&bounds, GetWindowLong(SDL_Window, GWL_STYLE), FALSE);
|
|
|
646 width = bounds.right-bounds.left;
|
|
|
647 height = bounds.bottom-bounds.top;
|
|
|
648 x = (GetSystemMetrics(SM_CXSCREEN)-width)/2;
|
|
|
649 y = (GetSystemMetrics(SM_CYSCREEN)-height)/2;
|
|
|
650 if ( y < 0 ) { /* Cover up title bar for more client area */
|
|
|
651 y -= GetSystemMetrics(SM_CYCAPTION)/2;
|
|
|
652 }
|
|
|
653 swp_flags = (SWP_NOCOPYBITS | SWP_NOZORDER | SWP_SHOWWINDOW);
|
|
|
654 if ( was_visible && !(flags & SDL_FULLSCREEN) ) {
|
|
|
655 swp_flags |= SWP_NOMOVE;
|
|
|
656 }
|
|
|
657 SetWindowPos(SDL_Window, NULL, x, y, width, height, swp_flags);
|
|
|
658 SDL_resizing = 0;
|
|
|
659 SetForegroundWindow(SDL_Window);
|
|
|
660 }
|
|
|
661
|
|
|
662 /* Set up for OpenGL */
|
|
|
663 if ( flags & SDL_OPENGL ) {
|
|
|
664 if ( WIN_GL_SetupWindow(this) < 0 ) {
|
|
|
665 return(NULL);
|
|
|
666 }
|
|
|
667 video->flags |= SDL_OPENGL;
|
|
|
668 }
|
|
|
669 /* We're live! */
|
|
|
670 return(video);
|
|
|
671 }
|
|
|
672
|
|
|
673 /* We don't actually allow hardware surfaces in the DIB driver */
|
|
|
674 static int DIB_AllocHWSurface(_THIS, SDL_Surface *surface)
|
|
|
675 {
|
|
|
676 return(-1);
|
|
|
677 }
|
|
|
678 static void DIB_FreeHWSurface(_THIS, SDL_Surface *surface)
|
|
|
679 {
|
|
|
680 return;
|
|
|
681 }
|
|
|
682 static int DIB_LockHWSurface(_THIS, SDL_Surface *surface)
|
|
|
683 {
|
|
|
684 return(0);
|
|
|
685 }
|
|
|
686 static void DIB_UnlockHWSurface(_THIS, SDL_Surface *surface)
|
|
|
687 {
|
|
|
688 return;
|
|
|
689 }
|
|
|
690
|
|
|
691 static void DIB_NormalUpdate(_THIS, int numrects, SDL_Rect *rects)
|
|
|
692 {
|
|
|
693 HDC hdc, mdc;
|
|
|
694 int i;
|
|
|
695
|
|
|
696 hdc = GetDC(SDL_Window);
|
|
|
697 if ( screen_pal ) {
|
|
|
698 SelectPalette(hdc, screen_pal, FALSE);
|
|
|
699 }
|
|
|
700 mdc = CreateCompatibleDC(hdc);
|
|
|
701 SelectObject(mdc, screen_bmp);
|
|
|
702 for ( i=0; i<numrects; ++i ) {
|
|
|
703 BitBlt(hdc, rects[i].x, rects[i].y, rects[i].w, rects[i].h,
|
|
|
704 mdc, rects[i].x, rects[i].y, SRCCOPY);
|
|
|
705 }
|
|
|
706 DeleteDC(mdc);
|
|
|
707 ReleaseDC(SDL_Window, hdc);
|
|
|
708 }
|
|
|
709
|
|
|
710 int DIB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
|
|
|
711 {
|
|
|
712 RGBQUAD *pal;
|
|
|
713 int i;
|
|
|
714 HDC hdc, mdc;
|
|
|
715
|
|
|
716 /* Update the display palette */
|
|
|
717 hdc = GetDC(SDL_Window);
|
|
|
718 if ( screen_pal ) {
|
|
|
719 PALETTEENTRY *entries;
|
|
|
720
|
|
|
721 entries = (PALETTEENTRY *)alloca(ncolors*sizeof(PALETTEENTRY));
|
|
|
722 for ( i=0; i<ncolors; ++i ) {
|
|
|
723 entries[i].peRed = colors[i].r;
|
|
|
724 entries[i].peGreen = colors[i].g;
|
|
|
725 entries[i].peBlue = colors[i].b;
|
|
|
726 entries[i].peFlags = PC_NOCOLLAPSE;
|
|
|
727 }
|
|
|
728 SetPaletteEntries(screen_pal, firstcolor, ncolors, entries);
|
|
|
729 SelectPalette(hdc, screen_pal, FALSE);
|
|
|
730 RealizePalette(hdc);
|
|
|
731 }
|
|
|
732
|
|
|
733 /* Copy palette colors into DIB palette */
|
|
|
734 pal = (RGBQUAD *)alloca(ncolors*sizeof(RGBQUAD));
|
|
|
735 for ( i=0; i<ncolors; ++i ) {
|
|
|
736 pal[i].rgbRed = colors[i].r;
|
|
|
737 pal[i].rgbGreen = colors[i].g;
|
|
|
738 pal[i].rgbBlue = colors[i].b;
|
|
|
739 pal[i].rgbReserved = 0;
|
|
|
740 }
|
|
|
741
|
|
|
742 /* Set the DIB palette and update the display */
|
|
|
743 mdc = CreateCompatibleDC(hdc);
|
|
|
744 SelectObject(mdc, screen_bmp);
|
|
|
745 SetDIBColorTable(mdc, firstcolor, ncolors, pal);
|
|
|
746 BitBlt(hdc, 0, 0, this->screen->w, this->screen->h,
|
|
|
747 mdc, 0, 0, SRCCOPY);
|
|
|
748 DeleteDC(mdc);
|
|
|
749 ReleaseDC(SDL_Window, hdc);
|
|
|
750 return(1);
|
|
|
751 }
|
|
|
752
|
|
|
753 static void DIB_CheckGamma(_THIS)
|
|
|
754 {
|
|
|
755 #ifndef NO_GAMMA_SUPPORT
|
|
|
756 HDC hdc;
|
|
|
757 WORD ramp[3*256];
|
|
|
758
|
|
|
759 /* If we fail to get gamma, disable gamma control */
|
|
|
760 hdc = GetDC(SDL_Window);
|
|
|
761 if ( ! GetDeviceGammaRamp(hdc, ramp) ) {
|
|
|
762 this->GetGammaRamp = NULL;
|
|
|
763 this->SetGammaRamp = NULL;
|
|
|
764 }
|
|
|
765 ReleaseDC(SDL_Window, hdc);
|
|
|
766 #endif /* !NO_GAMMA_SUPPORT */
|
|
|
767 }
|
|
|
768 static void DIB_SwapGamma(_THIS)
|
|
|
769 {
|
|
|
770 #ifndef NO_GAMMA_SUPPORT
|
|
|
771 HDC hdc;
|
|
|
772
|
|
|
773 if ( gamma_saved ) {
|
|
|
774 hdc = GetDC(SDL_Window);
|
|
|
775 if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
|
|
|
776 /* About to leave active state, restore gamma */
|
|
|
777 SetDeviceGammaRamp(hdc, gamma_saved);
|
|
|
778 } else {
|
|
|
779 /* About to enter active state, set game gamma */
|
|
|
780 GetDeviceGammaRamp(hdc, gamma_saved);
|
|
|
781 SetDeviceGammaRamp(hdc, this->gamma);
|
|
|
782 }
|
|
|
783 ReleaseDC(SDL_Window, hdc);
|
|
|
784 }
|
|
|
785 #endif /* !NO_GAMMA_SUPPORT */
|
|
|
786 }
|
|
|
787 static void DIB_QuitGamma(_THIS)
|
|
|
788 {
|
|
|
789 #ifndef NO_GAMMA_SUPPORT
|
|
|
790 if ( gamma_saved ) {
|
|
|
791 /* Restore the original gamma if necessary */
|
|
|
792 if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
|
|
|
793 HDC hdc;
|
|
|
794
|
|
|
795 hdc = GetDC(SDL_Window);
|
|
|
796 SetDeviceGammaRamp(hdc, gamma_saved);
|
|
|
797 ReleaseDC(SDL_Window, hdc);
|
|
|
798 }
|
|
|
799
|
|
|
800 /* Free the saved gamma memory */
|
|
|
801 free(gamma_saved);
|
|
|
802 gamma_saved = 0;
|
|
|
803 }
|
|
|
804 #endif /* !NO_GAMMA_SUPPORT */
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805 }
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806
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807 #ifndef NO_GAMMA_SUPPORT
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808
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809 static int DIB_SetGammaRamp(_THIS, Uint16 *ramp)
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810 {
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|
811 HDC hdc;
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|
812 BOOL succeeded;
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|
|
813
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814 /* Set the ramp for the display */
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815 if ( ! gamma_saved ) {
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|
|
816 gamma_saved = (WORD *)malloc(3*256*sizeof(*gamma_saved));
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817 if ( ! gamma_saved ) {
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818 SDL_OutOfMemory();
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|
|
819 return -1;
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|
|
820 }
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|
821 hdc = GetDC(SDL_Window);
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|
|
822 GetDeviceGammaRamp(hdc, gamma_saved);
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|
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823 ReleaseDC(SDL_Window, hdc);
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|
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824 }
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|
|
825 if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
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|
|
826 hdc = GetDC(SDL_Window);
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|
827 succeeded = SetDeviceGammaRamp(hdc, ramp);
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828 ReleaseDC(SDL_Window, hdc);
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|
|
829 } else {
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|
|
830 succeeded = TRUE;
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|
|
831 }
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|
|
832 return succeeded ? 0 : -1;
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|
|
833 }
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|
|
834
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|
|
835 static int DIB_GetGammaRamp(_THIS, Uint16 *ramp)
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|
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836 {
|
|
|
837 HDC hdc;
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|
|
838 BOOL succeeded;
|
|
|
839
|
|
|
840 /* Get the ramp from the display */
|
|
|
841 hdc = GetDC(SDL_Window);
|
|
|
842 succeeded = GetDeviceGammaRamp(hdc, ramp);
|
|
|
843 ReleaseDC(SDL_Window, hdc);
|
|
|
844 return succeeded ? 0 : -1;
|
|
|
845 }
|
|
|
846
|
|
|
847 #endif /* !NO_GAMMA_SUPPORT */
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|
|
848
|
|
|
849 void DIB_VideoQuit(_THIS)
|
|
|
850 {
|
|
|
851 /* Destroy the window and everything associated with it */
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|
|
852 if ( SDL_Window ) {
|
|
|
853 /* Delete the screen bitmap (also frees screen->pixels) */
|
|
|
854 if ( this->screen ) {
|
|
|
855 #ifndef NO_CHANGEDISPLAYSETTINGS
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|
|
856 if ( this->screen->flags & SDL_FULLSCREEN ) {
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|
|
857 ChangeDisplaySettings(NULL, 0);
|
|
|
858 }
|
|
|
859 #endif
|
|
|
860 if ( this->screen->flags & SDL_OPENGL ) {
|
|
|
861 WIN_GL_ShutDown(this);
|
|
|
862 }
|
|
|
863 this->screen->pixels = NULL;
|
|
|
864 }
|
|
|
865 if ( screen_bmp ) {
|
|
|
866 DeleteObject(screen_bmp);
|
|
|
867 screen_bmp = NULL;
|
|
|
868 }
|
|
|
869 if ( screen_icn ) {
|
|
|
870 DestroyIcon(screen_icn);
|
|
|
871 screen_icn = NULL;
|
|
|
872 }
|
|
|
873 DIB_QuitGamma(this);
|
|
|
874 DIB_DestroyWindow(this);
|
|
|
875
|
|
|
876 SDL_Window = NULL;
|
|
|
877 }
|
|
|
878 }
|
|
|
879
|
|
|
880 /* Exported for the windows message loop only */
|
|
|
881 static void DIB_FocusPalette(_THIS, int foreground)
|
|
|
882 {
|
|
|
883 if ( screen_pal != NULL ) {
|
|
|
884 HDC hdc;
|
|
|
885
|
|
|
886 hdc = GetDC(SDL_Window);
|
|
|
887 SelectPalette(hdc, screen_pal, FALSE);
|
|
|
888 if ( RealizePalette(hdc) )
|
|
|
889 InvalidateRect(SDL_Window, NULL, FALSE);
|
|
|
890 ReleaseDC(SDL_Window, hdc);
|
|
|
891 }
|
|
|
892 }
|
|
|
893 static void DIB_RealizePalette(_THIS)
|
|
|
894 {
|
|
|
895 DIB_FocusPalette(this, 1);
|
|
|
896 }
|
|
|
897 static void DIB_PaletteChanged(_THIS, HWND window)
|
|
|
898 {
|
|
|
899 if ( window != SDL_Window ) {
|
|
|
900 DIB_FocusPalette(this, 0);
|
|
|
901 }
|
|
|
902 }
|
|
|
903
|
|
|
904 /* Exported for the windows message loop only */
|
|
|
905 static void DIB_WinPAINT(_THIS, HDC hdc)
|
|
|
906 {
|
|
|
907 HDC mdc;
|
|
|
908
|
|
|
909 if ( screen_pal ) {
|
|
|
910 SelectPalette(hdc, screen_pal, FALSE);
|
|
|
911 }
|
|
|
912 mdc = CreateCompatibleDC(hdc);
|
|
|
913 SelectObject(mdc, screen_bmp);
|
|
|
914 BitBlt(hdc, 0, 0, SDL_VideoSurface->w, SDL_VideoSurface->h,
|
|
|
915 mdc, 0, 0, SRCCOPY);
|
|
|
916 DeleteDC(mdc);
|
|
|
917 }
|
|
|
918
|
|
|
919 /* Stub in case DirectX isn't available */
|
|
|
920 #ifndef ENABLE_DIRECTX
|
|
|
921 void DX5_SoundFocus(HWND hwnd)
|
|
|
922 {
|
|
|
923 return;
|
|
|
924 }
|
|
|
925 #endif
|
