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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 #include "SDL_config.h" |
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23 |
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24 #define WIN32_LEAN_AND_MEAN |
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25 #include <windows.h> |
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26 |
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27 #include "SDL_version.h" |
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28 #include "SDL_video.h" |
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29 #include "SDL_loadso.h" |
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30 #include "SDL_syswm.h" |
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31 #include "../SDL_pixels_c.h" |
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32 #include "../SDL_cursor_c.h" |
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33 #include "SDL_syswm_c.h" |
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34 #include "SDL_wingl_c.h" |
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35 |
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36 |
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37 #ifdef _WIN32_WCE |
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38 #define DISABLE_ICON_SUPPORT |
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39 #endif |
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40 |
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41 /* The screen icon -- needs to be freed on SDL_VideoQuit() */ |
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42 HICON screen_icn = NULL; |
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43 |
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44 /* Win32 icon mask semantics are different from those of SDL: |
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45 SDL applies the mask to the icon and copies result to desktop. |
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46 Win32 applies the mask to the desktop and XORs the icon on. |
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47 This means that the SDL mask needs to be applied to the icon and |
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48 then inverted and passed to Win32. |
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49 */ |
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50 void WIN_SetWMIcon(_THIS, SDL_Surface *icon, Uint8 *mask) |
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51 { |
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52 #ifdef DISABLE_ICON_SUPPORT |
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53 return; |
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54 #else |
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55 SDL_Palette *pal_256; |
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56 SDL_Surface *icon_256; |
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57 Uint8 *pdata, *pwin32; |
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58 Uint8 *mdata, *mwin32, m = 0; |
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59 int icon_len; |
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60 int icon_plen; |
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61 int icon_mlen; |
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62 int icon_pitch; |
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63 int mask_pitch; |
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64 SDL_Rect bounds; |
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65 int i, skip; |
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66 int row, col; |
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67 struct /* quasi-BMP format */ Win32Icon { |
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68 Uint32 biSize; |
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69 Sint32 biWidth; |
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70 Sint32 biHeight; |
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71 Uint16 biPlanes; |
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72 Uint16 biBitCount; |
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73 Uint32 biCompression; |
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74 Uint32 biSizeImage; |
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75 Sint32 biXPelsPerMeter; |
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76 Sint32 biYPelsPerMeter; |
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77 Uint32 biClrUsed; |
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78 Uint32 biClrImportant; |
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79 struct /* RGBQUAD -- note it's BGR ordered */ { |
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80 Uint8 rgbBlue; |
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81 Uint8 rgbGreen; |
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82 Uint8 rgbRed; |
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83 Uint8 rgbReserved; |
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84 } biColors[256]; |
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85 /* Pixels: |
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86 Uint8 pixels[] |
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87 */ |
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88 /* Mask: |
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89 Uint8 mask[] |
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90 */ |
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91 } *icon_win32; |
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92 |
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93 /* Allocate the win32 bmp icon and set everything to zero */ |
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94 icon_pitch = ((icon->w+3)&~3); |
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95 mask_pitch = ((icon->w+7)/8); |
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96 icon_plen = icon->h*icon_pitch; |
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97 icon_mlen = icon->h*mask_pitch; |
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98 icon_len = sizeof(*icon_win32)+icon_plen+icon_mlen; |
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99 icon_win32 = (struct Win32Icon *)SDL_stack_alloc(Uint8, icon_len); |
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100 if ( icon_win32 == NULL ) { |
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101 return; |
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102 } |
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103 SDL_memset(icon_win32, 0, icon_len); |
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104 |
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105 /* Set the basic BMP parameters */ |
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106 icon_win32->biSize = sizeof(*icon_win32)-sizeof(icon_win32->biColors); |
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107 icon_win32->biWidth = icon->w; |
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108 icon_win32->biHeight = icon->h*2; |
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109 icon_win32->biPlanes = 1; |
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110 icon_win32->biBitCount = 8; |
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111 icon_win32->biSizeImage = icon_plen+icon_mlen; |
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112 |
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113 /* Allocate a standard 256 color icon surface */ |
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114 icon_256 = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, |
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115 icon_win32->biBitCount, 0, 0, 0, 0); |
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116 if ( icon_256 == NULL ) { |
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117 SDL_stack_free(icon_win32); |
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118 return; |
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119 } |
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120 pal_256 = icon_256->format->palette; |
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121 if (icon->format->palette && |
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122 (icon->format->BitsPerPixel == icon_256->format->BitsPerPixel)){ |
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123 Uint8 black; |
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124 SDL_memcpy(pal_256->colors, icon->format->palette->colors, |
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125 pal_256->ncolors*sizeof(SDL_Color)); |
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126 /* Make sure that 0 is black! */ |
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127 black = SDL_FindColor(pal_256, 0x00, 0x00, 0x00); |
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128 pal_256->colors[black] = pal_256->colors[0]; |
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129 pal_256->colors[0].r = 0x00; |
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130 pal_256->colors[0].g = 0x00; |
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131 pal_256->colors[0].b = 0x00; |
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132 } else { |
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133 SDL_DitherColors(pal_256->colors, |
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134 icon_256->format->BitsPerPixel); |
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135 } |
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136 |
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137 /* Now copy color data to the icon BMP */ |
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138 for ( i=0; i<(1<<icon_win32->biBitCount); ++i ) { |
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139 icon_win32->biColors[i].rgbRed = pal_256->colors[i].r; |
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140 icon_win32->biColors[i].rgbGreen = pal_256->colors[i].g; |
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141 icon_win32->biColors[i].rgbBlue = pal_256->colors[i].b; |
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142 } |
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143 |
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144 /* Convert icon to a standard surface format. This may not always |
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145 be necessary, as Windows supports a variety of BMP formats, but |
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146 it greatly simplifies our code. |
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147 */ |
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148 bounds.x = 0; |
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149 bounds.y = 0; |
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150 bounds.w = icon->w; |
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151 bounds.h = icon->h; |
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152 if ( SDL_LowerBlit(icon, &bounds, icon_256, &bounds) < 0 ) { |
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153 SDL_stack_free(icon_win32); |
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154 SDL_FreeSurface(icon_256); |
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155 return; |
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156 } |
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157 |
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158 /* Copy pixels upside-down to icon BMP, masked with the icon mask */ |
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159 if ( SDL_MUSTLOCK(icon_256) || (icon_256->pitch != icon_pitch) ) { |
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160 SDL_stack_free(icon_win32); |
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161 SDL_FreeSurface(icon_256); |
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162 SDL_SetError("Warning: Unexpected icon_256 characteristics"); |
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163 return; |
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164 } |
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165 pdata = (Uint8 *)icon_256->pixels; |
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166 mdata = mask; |
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167 pwin32 = (Uint8 *)icon_win32+sizeof(*icon_win32)+icon_plen-icon_pitch; |
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168 skip = icon_pitch - icon->w; |
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169 for ( row=0; row<icon->h; ++row ) { |
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170 for ( col=0; col<icon->w; ++col ) { |
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171 if ( (col%8) == 0 ) { |
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172 m = *mdata++; |
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173 } |
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174 if ( (m&0x80) != 0x00 ) { |
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175 *pwin32 = *pdata; |
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176 } |
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177 m <<= 1; |
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178 ++pdata; |
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179 ++pwin32; |
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180 } |
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181 pdata += skip; |
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182 pwin32 += skip; |
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183 pwin32 -= 2*icon_pitch; |
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184 } |
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185 SDL_FreeSurface(icon_256); |
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186 |
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187 /* Copy mask inverted and upside-down to icon BMP */ |
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188 mdata = mask; |
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189 mwin32 = (Uint8 *)icon_win32 |
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190 +sizeof(*icon_win32)+icon_plen+icon_mlen-mask_pitch; |
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191 for ( row=0; row<icon->h; ++row ) { |
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192 for ( col=0; col<mask_pitch; ++col ) { |
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193 *mwin32++ = ~*mdata++; |
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194 } |
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195 mwin32 -= 2*mask_pitch; |
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196 } |
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197 |
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198 /* Finally, create the icon handle and set the window icon */ |
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199 screen_icn = CreateIconFromResourceEx((Uint8 *)icon_win32, icon_len, |
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200 TRUE, 0x00030000, icon->w, icon->h, LR_DEFAULTCOLOR); |
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201 if ( screen_icn == NULL ) { |
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202 SDL_SetError("Couldn't create Win32 icon handle"); |
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203 } else { |
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204 SetClassLongPtr(SDL_Window, GCLP_HICON, (LONG_PTR)screen_icn); |
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205 } |
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206 SDL_stack_free(icon_win32); |
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207 #endif /* DISABLE_ICON_SUPPORT */ |
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208 } |
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209 |
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210 typedef BOOL (WINAPI *PtrSetWindowTextW)(HWND hWnd, LPCWSTR lpString); |
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211 |
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212 void WIN_SetWMCaption(_THIS, const char *title, const char *icon) |
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213 { |
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214 #ifdef _WIN32_WCE |
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215 /* WinCE uses the UNICODE version */ |
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216 LPWSTR lpszW = SDL_iconv_utf8_ucs2((char *)title); |
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217 SetWindowText(SDL_Window, lpszW); |
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218 SDL_free(lpszW); |
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219 #else |
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220 Uint16 *lpsz = SDL_iconv_utf8_ucs2(title); |
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221 size_t len = WideCharToMultiByte(CP_ACP, 0, lpsz, -1, NULL, 0, NULL, NULL); |
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222 char *cvt = SDL_stack_alloc(char, len + 1); |
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223 WideCharToMultiByte(CP_ACP, 0, lpsz, -1, cvt, len, NULL, NULL); |
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224 SetWindowText(SDL_Window, cvt); |
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225 SDL_stack_free(cvt); |
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226 SDL_free(lpsz); |
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227 #endif |
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228 } |
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229 |
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230 int WIN_IconifyWindow(_THIS) |
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231 { |
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232 ShowWindow(SDL_Window, SW_MINIMIZE); |
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233 return(1); |
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234 } |
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235 |
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236 SDL_GrabMode WIN_GrabInput(_THIS, SDL_GrabMode mode) |
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237 { |
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238 if ( mode == SDL_GRAB_OFF ) { |
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239 ClipCursor(NULL); |
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240 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { |
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241 /* RJR: March 28, 2000 |
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242 must be leaving relative mode, move mouse from |
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243 center of window to where it belongs ... */ |
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244 POINT pt; |
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245 int x, y; |
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246 SDL_GetMouseState(&x,&y); |
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247 pt.x = x; |
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248 pt.y = y; |
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249 ClientToScreen(SDL_Window, &pt); |
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250 SetCursorPos(pt.x,pt.y); |
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251 } |
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252 #ifdef _WIN32_WCE |
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253 AllKeys(0); |
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254 #endif |
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255 } else { |
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256 ClipCursor(&SDL_bounds); |
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257 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { |
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258 /* RJR: March 28, 2000 |
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259 must be entering relative mode, get ready by |
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260 moving mouse to center of window ... */ |
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261 POINT pt; |
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262 pt.x = (SDL_VideoSurface->w/2); |
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263 pt.y = (SDL_VideoSurface->h/2); |
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264 ClientToScreen(SDL_Window, &pt); |
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265 SetCursorPos(pt.x, pt.y); |
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266 } |
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267 #ifdef _WIN32_WCE |
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268 AllKeys(1); |
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269 #endif |
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270 } |
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271 return(mode); |
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272 } |
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273 |
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274 /* If 'info' is the right version, this function fills it and returns 1. |
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275 Otherwise, in case of a version mismatch, it returns -1. |
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276 */ |
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277 int WIN_GetWMInfo(_THIS, SDL_SysWMinfo *info) |
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278 { |
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279 if ( info->version.major <= SDL_MAJOR_VERSION ) { |
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280 info->window = SDL_Window; |
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281 if ( SDL_VERSIONNUM(info->version.major, |
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282 info->version.minor, |
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283 info->version.patch) >= |
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284 SDL_VERSIONNUM(1, 2, 5) ) { |
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285 #if SDL_VIDEO_OPENGL |
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286 info->hglrc = GL_hrc; |
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287 #else |
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288 info->hglrc = NULL; |
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289 #endif |
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290 } |
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291 return(1); |
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292 } else { |
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293 SDL_SetError("Application not compiled with SDL %d.%d\n", |
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294 SDL_MAJOR_VERSION, SDL_MINOR_VERSION); |
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295 return(-1); |
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296 } |
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297 } |