| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #define WIN32_LEAN_AND_MEAN |
| 25 | #include <windows.h> |
| 26 | |
| 27 | #include "SDL_version.h" |
| 28 | #include "SDL_video.h" |
| 29 | #include "SDL_loadso.h" |
| 30 | #include "SDL_syswm.h" |
| 31 | #include "../SDL_pixels_c.h" |
| 32 | #include "../SDL_cursor_c.h" |
| 33 | #include "SDL_syswm_c.h" |
| 34 | #include "SDL_wingl_c.h" |
| 35 | |
| 36 | |
| 37 | #ifdef _WIN32_WCE |
| 38 | #define DISABLE_ICON_SUPPORT |
| 39 | #endif |
| 40 | |
| 41 | /* The screen icon -- needs to be freed on SDL_VideoQuit() */ |
| 42 | HICON screen_icn = NULL; |
| 43 | |
| 44 | /* Win32 icon mask semantics are different from those of SDL: |
| 45 | SDL applies the mask to the icon and copies result to desktop. |
| 46 | Win32 applies the mask to the desktop and XORs the icon on. |
| 47 | This means that the SDL mask needs to be applied to the icon and |
| 48 | then inverted and passed to Win32. |
| 49 | */ |
| 50 | void WIN_SetWMIcon(_THIS, SDL_Surface *icon, Uint8 *mask) |
| 51 | { |
| 52 | #ifdef DISABLE_ICON_SUPPORT |
| 53 | return; |
| 54 | #else |
| 55 | SDL_Palette *pal_256; |
| 56 | SDL_Surface *icon_256; |
| 57 | Uint8 *pdata, *pwin32; |
| 58 | Uint8 *mdata, *mwin32, m = 0; |
| 59 | int icon_len; |
| 60 | int icon_plen; |
| 61 | int icon_mlen; |
| 62 | int icon_pitch; |
| 63 | int mask_pitch; |
| 64 | SDL_Rect bounds; |
| 65 | int i, skip; |
| 66 | int row, col; |
| 67 | struct /* quasi-BMP format */ Win32Icon { |
| 68 | Uint32 biSize; |
| 69 | Sint32 biWidth; |
| 70 | Sint32 biHeight; |
| 71 | Uint16 biPlanes; |
| 72 | Uint16 biBitCount; |
| 73 | Uint32 biCompression; |
| 74 | Uint32 biSizeImage; |
| 75 | Sint32 biXPelsPerMeter; |
| 76 | Sint32 biYPelsPerMeter; |
| 77 | Uint32 biClrUsed; |
| 78 | Uint32 biClrImportant; |
| 79 | struct /* RGBQUAD -- note it's BGR ordered */ { |
| 80 | Uint8 rgbBlue; |
| 81 | Uint8 rgbGreen; |
| 82 | Uint8 rgbRed; |
| 83 | Uint8 rgbReserved; |
| 84 | } biColors[256]; |
| 85 | /* Pixels: |
| 86 | Uint8 pixels[] |
| 87 | */ |
| 88 | /* Mask: |
| 89 | Uint8 mask[] |
| 90 | */ |
| 91 | } *icon_win32; |
| 92 | |
| 93 | /* Allocate the win32 bmp icon and set everything to zero */ |
| 94 | icon_pitch = ((icon->w+3)&~3); |
| 95 | mask_pitch = ((icon->w+7)/8); |
| 96 | icon_plen = icon->h*icon_pitch; |
| 97 | icon_mlen = icon->h*mask_pitch; |
| 98 | icon_len = sizeof(*icon_win32)+icon_plen+icon_mlen; |
| 99 | icon_win32 = (struct Win32Icon *)SDL_stack_alloc(Uint8, icon_len); |
| 100 | if ( icon_win32 == NULL ) { |
| 101 | return; |
| 102 | } |
| 103 | SDL_memset(icon_win32, 0, icon_len); |
| 104 | |
| 105 | /* Set the basic BMP parameters */ |
| 106 | icon_win32->biSize = sizeof(*icon_win32)-sizeof(icon_win32->biColors); |
| 107 | icon_win32->biWidth = icon->w; |
| 108 | icon_win32->biHeight = icon->h*2; |
| 109 | icon_win32->biPlanes = 1; |
| 110 | icon_win32->biBitCount = 8; |
| 111 | icon_win32->biSizeImage = icon_plen+icon_mlen; |
| 112 | |
| 113 | /* Allocate a standard 256 color icon surface */ |
| 114 | icon_256 = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, |
| 115 | icon_win32->biBitCount, 0, 0, 0, 0); |
| 116 | if ( icon_256 == NULL ) { |
| 117 | SDL_stack_free(icon_win32); |
| 118 | return; |
| 119 | } |
| 120 | pal_256 = icon_256->format->palette; |
| 121 | if (icon->format->palette && |
| 122 | (icon->format->BitsPerPixel == icon_256->format->BitsPerPixel)){ |
| 123 | Uint8 black; |
| 124 | SDL_memcpy(pal_256->colors, icon->format->palette->colors, |
| 125 | pal_256->ncolors*sizeof(SDL_Color)); |
| 126 | /* Make sure that 0 is black! */ |
| 127 | black = SDL_FindColor(pal_256, 0x00, 0x00, 0x00); |
| 128 | pal_256->colors[black] = pal_256->colors[0]; |
| 129 | pal_256->colors[0].r = 0x00; |
| 130 | pal_256->colors[0].g = 0x00; |
| 131 | pal_256->colors[0].b = 0x00; |
| 132 | } else { |
| 133 | SDL_DitherColors(pal_256->colors, |
| 134 | icon_256->format->BitsPerPixel); |
| 135 | } |
| 136 | |
| 137 | /* Now copy color data to the icon BMP */ |
| 138 | for ( i=0; i<(1<<icon_win32->biBitCount); ++i ) { |
| 139 | icon_win32->biColors[i].rgbRed = pal_256->colors[i].r; |
| 140 | icon_win32->biColors[i].rgbGreen = pal_256->colors[i].g; |
| 141 | icon_win32->biColors[i].rgbBlue = pal_256->colors[i].b; |
| 142 | } |
| 143 | |
| 144 | /* Convert icon to a standard surface format. This may not always |
| 145 | be necessary, as Windows supports a variety of BMP formats, but |
| 146 | it greatly simplifies our code. |
| 147 | */ |
| 148 | bounds.x = 0; |
| 149 | bounds.y = 0; |
| 150 | bounds.w = icon->w; |
| 151 | bounds.h = icon->h; |
| 152 | if ( SDL_LowerBlit(icon, &bounds, icon_256, &bounds) < 0 ) { |
| 153 | SDL_stack_free(icon_win32); |
| 154 | SDL_FreeSurface(icon_256); |
| 155 | return; |
| 156 | } |
| 157 | |
| 158 | /* Copy pixels upside-down to icon BMP, masked with the icon mask */ |
| 159 | if ( SDL_MUSTLOCK(icon_256) || (icon_256->pitch != icon_pitch) ) { |
| 160 | SDL_stack_free(icon_win32); |
| 161 | SDL_FreeSurface(icon_256); |
| 162 | SDL_SetError("Warning: Unexpected icon_256 characteristics"); |
| 163 | return; |
| 164 | } |
| 165 | pdata = (Uint8 *)icon_256->pixels; |
| 166 | mdata = mask; |
| 167 | pwin32 = (Uint8 *)icon_win32+sizeof(*icon_win32)+icon_plen-icon_pitch; |
| 168 | skip = icon_pitch - icon->w; |
| 169 | for ( row=0; row<icon->h; ++row ) { |
| 170 | for ( col=0; col<icon->w; ++col ) { |
| 171 | if ( (col%8) == 0 ) { |
| 172 | m = *mdata++; |
| 173 | } |
| 174 | if ( (m&0x80) != 0x00 ) { |
| 175 | *pwin32 = *pdata; |
| 176 | } |
| 177 | m <<= 1; |
| 178 | ++pdata; |
| 179 | ++pwin32; |
| 180 | } |
| 181 | pdata += skip; |
| 182 | pwin32 += skip; |
| 183 | pwin32 -= 2*icon_pitch; |
| 184 | } |
| 185 | SDL_FreeSurface(icon_256); |
| 186 | |
| 187 | /* Copy mask inverted and upside-down to icon BMP */ |
| 188 | mdata = mask; |
| 189 | mwin32 = (Uint8 *)icon_win32 |
| 190 | +sizeof(*icon_win32)+icon_plen+icon_mlen-mask_pitch; |
| 191 | for ( row=0; row<icon->h; ++row ) { |
| 192 | for ( col=0; col<mask_pitch; ++col ) { |
| 193 | *mwin32++ = ~*mdata++; |
| 194 | } |
| 195 | mwin32 -= 2*mask_pitch; |
| 196 | } |
| 197 | |
| 198 | /* Finally, create the icon handle and set the window icon */ |
| 199 | screen_icn = CreateIconFromResourceEx((Uint8 *)icon_win32, icon_len, |
| 200 | TRUE, 0x00030000, icon->w, icon->h, LR_DEFAULTCOLOR); |
| 201 | if ( screen_icn == NULL ) { |
| 202 | SDL_SetError("Couldn't create Win32 icon handle"); |
| 203 | } else { |
| 204 | SetClassLongPtr(SDL_Window, GCLP_HICON, (LONG_PTR)screen_icn); |
| 205 | } |
| 206 | SDL_stack_free(icon_win32); |
| 207 | #endif /* DISABLE_ICON_SUPPORT */ |
| 208 | } |
| 209 | |
| 210 | typedef BOOL (WINAPI *PtrSetWindowTextW)(HWND hWnd, LPCWSTR lpString); |
| 211 | |
| 212 | void WIN_SetWMCaption(_THIS, const char *title, const char *icon) |
| 213 | { |
| 214 | #ifdef _WIN32_WCE |
| 215 | /* WinCE uses the UNICODE version */ |
| 216 | LPWSTR lpszW = SDL_iconv_utf8_ucs2((char *)title); |
| 217 | SetWindowText(SDL_Window, lpszW); |
| 218 | SDL_free(lpszW); |
| 219 | #else |
| 220 | Uint16 *lpsz = SDL_iconv_utf8_ucs2(title); |
| 221 | size_t len = WideCharToMultiByte(CP_ACP, 0, lpsz, -1, NULL, 0, NULL, NULL); |
| 222 | char *cvt = SDL_stack_alloc(char, len + 1); |
| 223 | WideCharToMultiByte(CP_ACP, 0, lpsz, -1, cvt, len, NULL, NULL); |
| 224 | SetWindowText(SDL_Window, cvt); |
| 225 | SDL_stack_free(cvt); |
| 226 | SDL_free(lpsz); |
| 227 | #endif |
| 228 | } |
| 229 | |
| 230 | int WIN_IconifyWindow(_THIS) |
| 231 | { |
| 232 | ShowWindow(SDL_Window, SW_MINIMIZE); |
| 233 | return(1); |
| 234 | } |
| 235 | |
| 236 | SDL_GrabMode WIN_GrabInput(_THIS, SDL_GrabMode mode) |
| 237 | { |
| 238 | if ( mode == SDL_GRAB_OFF ) { |
| 239 | ClipCursor(NULL); |
| 240 | if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { |
| 241 | /* RJR: March 28, 2000 |
| 242 | must be leaving relative mode, move mouse from |
| 243 | center of window to where it belongs ... */ |
| 244 | POINT pt; |
| 245 | int x, y; |
| 246 | SDL_GetMouseState(&x,&y); |
| 247 | pt.x = x; |
| 248 | pt.y = y; |
| 249 | ClientToScreen(SDL_Window, &pt); |
| 250 | SetCursorPos(pt.x,pt.y); |
| 251 | } |
| 252 | #ifdef _WIN32_WCE |
| 253 | AllKeys(0); |
| 254 | #endif |
| 255 | } else { |
| 256 | ClipCursor(&SDL_bounds); |
| 257 | if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { |
| 258 | /* RJR: March 28, 2000 |
| 259 | must be entering relative mode, get ready by |
| 260 | moving mouse to center of window ... */ |
| 261 | POINT pt; |
| 262 | pt.x = (SDL_VideoSurface->w/2); |
| 263 | pt.y = (SDL_VideoSurface->h/2); |
| 264 | ClientToScreen(SDL_Window, &pt); |
| 265 | SetCursorPos(pt.x, pt.y); |
| 266 | } |
| 267 | #ifdef _WIN32_WCE |
| 268 | AllKeys(1); |
| 269 | #endif |
| 270 | } |
| 271 | return(mode); |
| 272 | } |
| 273 | |
| 274 | /* If 'info' is the right version, this function fills it and returns 1. |
| 275 | Otherwise, in case of a version mismatch, it returns -1. |
| 276 | */ |
| 277 | int WIN_GetWMInfo(_THIS, SDL_SysWMinfo *info) |
| 278 | { |
| 279 | if ( info->version.major <= SDL_MAJOR_VERSION ) { |
| 280 | info->window = SDL_Window; |
| 281 | if ( SDL_VERSIONNUM(info->version.major, |
| 282 | info->version.minor, |
| 283 | info->version.patch) >= |
| 284 | SDL_VERSIONNUM(1, 2, 5) ) { |
| 285 | #if SDL_VIDEO_OPENGL |
| 286 | info->hglrc = GL_hrc; |
| 287 | #else |
| 288 | info->hglrc = NULL; |
| 289 | #endif |
| 290 | } |
| 291 | return(1); |
| 292 | } else { |
| 293 | SDL_SetError("Application not compiled with SDL %d.%d\n", |
| 294 | SDL_MAJOR_VERSION, SDL_MINOR_VERSION); |
| 295 | return(-1); |
| 296 | } |
| 297 | } |