Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_syswm.c @ 1164:10b3fb28c86b
Date: Mon, 31 Oct 2005 14:23:34 +0100
From: Thomas Omilian <paccy@arcor.de>
To: sdl@libsdl.org
Subject: [SDL] SDL_SoftStretch() fixed!
Ok, after debugging the night I found the error:
in video/SDL_stretch.c in Line 81
/* See if we need to regenerate the copy buffer */
if ( (src_w == last.src_w) &&
(dst_w == last.src_w) && (bpp == last.bpp) ) {
return(0);
}
the second comparison should be (dst_w == last dst_w).
Perhaps someone could apply it to the source...
Regards,
Thomas Omilian
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 01 Nov 2005 04:14:24 +0000 |
| parents | 51a8702d8ecd |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999 Sam Lantinga | |
| 4 | |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 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 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$" | |
| 26 #endif | |
| 27 | |
| 28 #include <stdio.h> | |
| 29 #include <malloc.h> | |
| 30 #include <windows.h> | |
| 31 | |
| 32 #include "SDL_version.h" | |
| 33 #include "SDL_error.h" | |
| 34 #include "SDL_video.h" | |
| 35 #include "SDL_syswm.h" | |
| 36 #include "SDL_syswm_c.h" | |
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37 #include "SDL_wingl_c.h" |
| 0 | 38 #include "SDL_pixels_c.h" |
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39 #include "SDL_loadso.h" |
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40 |
| 0 | 41 |
| 42 #ifdef _WIN32_WCE | |
| 43 #define DISABLE_ICON_SUPPORT | |
| 44 #endif | |
| 45 | |
| 46 /* RJR: March 28, 2000 | |
| 47 we need "SDL_cursor_c.h" for mods to WIN_GrabInput */ | |
| 48 #include "SDL_cursor_c.h" | |
| 49 | |
| 50 /* The screen icon -- needs to be freed on SDL_VideoQuit() */ | |
| 51 HICON screen_icn = NULL; | |
| 52 | |
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53 #ifdef _WIN32_WCE |
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54 |
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55 BOOL (WINAPI *CoreCatchInput)(int flag) = NULL; |
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56 int input_catched = 0; |
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57 HINSTANCE coredll = NULL; |
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58 |
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59 // the same API call that gx.dll does to catch the input |
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60 void LoadInputCatchFunc() |
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61 { |
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62 coredll = SDL_LoadObject("coredll.dll"); |
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63 if( coredll ) |
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64 { |
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65 CoreCatchInput = (int (WINAPI *)(int)) GetProcAddress(coredll, (const unsigned short *) 1453); |
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66 } |
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67 } |
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68 |
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69 #endif |
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70 |
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71 |
| 0 | 72 /* Win32 icon mask semantics are different from those of SDL: |
| 73 SDL applies the mask to the icon and copies result to desktop. | |
| 74 Win32 applies the mask to the desktop and XORs the icon on. | |
| 75 This means that the SDL mask needs to be applied to the icon and | |
| 76 then inverted and passed to Win32. | |
| 77 */ | |
| 78 void WIN_SetWMIcon(_THIS, SDL_Surface *icon, Uint8 *mask) | |
| 79 { | |
| 80 #ifdef DISABLE_ICON_SUPPORT | |
| 81 return; | |
| 82 #else | |
| 83 SDL_Palette *pal_256; | |
| 84 SDL_Surface *icon_256; | |
| 85 Uint8 *pdata, *pwin32; | |
| 86 Uint8 *mdata, *mwin32, m = 0; | |
| 87 int icon_len; | |
| 88 int icon_plen; | |
| 89 int icon_mlen; | |
| 90 int icon_pitch; | |
| 91 int mask_pitch; | |
| 92 SDL_Rect bounds; | |
| 93 int i, skip; | |
| 94 int row, col; | |
| 95 struct /* quasi-BMP format */ Win32Icon { | |
| 96 Uint32 biSize; | |
| 97 Sint32 biWidth; | |
| 98 Sint32 biHeight; | |
| 99 Uint16 biPlanes; | |
| 100 Uint16 biBitCount; | |
| 101 Uint32 biCompression; | |
| 102 Uint32 biSizeImage; | |
| 103 Sint32 biXPelsPerMeter; | |
| 104 Sint32 biYPelsPerMeter; | |
| 105 Uint32 biClrUsed; | |
| 106 Uint32 biClrImportant; | |
| 107 struct /* RGBQUAD -- note it's BGR ordered */ { | |
| 108 Uint8 rgbBlue; | |
| 109 Uint8 rgbGreen; | |
| 110 Uint8 rgbRed; | |
| 111 Uint8 rgbReserved; | |
| 112 } biColors[256]; | |
| 113 /* Pixels: | |
| 114 Uint8 pixels[] | |
| 115 */ | |
| 116 /* Mask: | |
| 117 Uint8 mask[] | |
| 118 */ | |
| 119 } *icon_win32; | |
| 120 | |
| 121 /* Allocate the win32 bmp icon and set everything to zero */ | |
| 122 icon_pitch = ((icon->w+3)&~3); | |
| 123 mask_pitch = ((icon->w+7)/8); | |
| 124 icon_plen = icon->h*icon_pitch; | |
| 125 icon_mlen = icon->h*mask_pitch; | |
| 126 icon_len = sizeof(*icon_win32)+icon_plen+icon_mlen; | |
| 127 icon_win32 = (struct Win32Icon *)alloca(icon_len); | |
| 128 if ( icon_win32 == NULL ) { | |
| 129 return; | |
| 130 } | |
| 131 memset(icon_win32, 0, icon_len); | |
| 132 | |
| 133 /* Set the basic BMP parameters */ | |
| 134 icon_win32->biSize = sizeof(*icon_win32)-sizeof(icon_win32->biColors); | |
| 135 icon_win32->biWidth = icon->w; | |
| 136 icon_win32->biHeight = icon->h*2; | |
| 137 icon_win32->biPlanes = 1; | |
| 138 icon_win32->biBitCount = 8; | |
| 139 icon_win32->biSizeImage = icon_plen+icon_mlen; | |
| 140 | |
| 141 /* Allocate a standard 256 color icon surface */ | |
| 142 icon_256 = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, | |
| 143 icon_win32->biBitCount, 0, 0, 0, 0); | |
| 144 if ( icon_256 == NULL ) { | |
| 145 return; | |
| 146 } | |
| 147 pal_256 = icon_256->format->palette; | |
| 148 if (icon->format->palette && | |
| 149 (icon->format->BitsPerPixel == icon_256->format->BitsPerPixel)){ | |
| 150 Uint8 black; | |
| 151 memcpy(pal_256->colors, icon->format->palette->colors, | |
| 152 pal_256->ncolors*sizeof(SDL_Color)); | |
| 153 /* Make sure that 0 is black! */ | |
| 154 black = SDL_FindColor(pal_256, 0x00, 0x00, 0x00); | |
| 155 pal_256->colors[black] = pal_256->colors[0]; | |
| 156 pal_256->colors[0].r = 0x00; | |
| 157 pal_256->colors[0].g = 0x00; | |
| 158 pal_256->colors[0].b = 0x00; | |
| 159 } else { | |
| 160 SDL_DitherColors(pal_256->colors, | |
| 161 icon_256->format->BitsPerPixel); | |
| 162 } | |
| 163 | |
| 164 /* Now copy color data to the icon BMP */ | |
| 165 for ( i=0; i<(1<<icon_win32->biBitCount); ++i ) { | |
| 166 icon_win32->biColors[i].rgbRed = pal_256->colors[i].r; | |
| 167 icon_win32->biColors[i].rgbGreen = pal_256->colors[i].g; | |
| 168 icon_win32->biColors[i].rgbBlue = pal_256->colors[i].b; | |
| 169 } | |
| 170 | |
| 171 /* Convert icon to a standard surface format. This may not always | |
| 172 be necessary, as Windows supports a variety of BMP formats, but | |
| 173 it greatly simplifies our code. | |
| 174 */ | |
| 175 bounds.x = 0; | |
| 176 bounds.y = 0; | |
| 177 bounds.w = icon->w; | |
| 178 bounds.h = icon->h; | |
| 179 if ( SDL_LowerBlit(icon, &bounds, icon_256, &bounds) < 0 ) { | |
| 180 SDL_FreeSurface(icon_256); | |
| 181 return; | |
| 182 } | |
| 183 | |
| 184 /* Copy pixels upside-down to icon BMP, masked with the icon mask */ | |
| 185 if ( SDL_MUSTLOCK(icon_256) || (icon_256->pitch != icon_pitch) ) { | |
| 186 SDL_FreeSurface(icon_256); | |
| 187 SDL_SetError("Warning: Unexpected icon_256 characteristics"); | |
| 188 return; | |
| 189 } | |
| 190 pdata = (Uint8 *)icon_256->pixels; | |
| 191 mdata = mask; | |
| 192 pwin32 = (Uint8 *)icon_win32+sizeof(*icon_win32)+icon_plen-icon_pitch; | |
| 193 skip = icon_pitch - icon->w; | |
| 194 for ( row=0; row<icon->h; ++row ) { | |
| 195 for ( col=0; col<icon->w; ++col ) { | |
| 196 if ( (col%8) == 0 ) { | |
| 197 m = *mdata++; | |
| 198 } | |
| 199 if ( (m&0x80) != 0x00 ) { | |
| 200 *pwin32 = *pdata; | |
| 201 } | |
| 202 m <<= 1; | |
| 203 ++pdata; | |
| 204 ++pwin32; | |
| 205 } | |
| 206 pdata += skip; | |
| 207 pwin32 += skip; | |
| 208 pwin32 -= 2*icon_pitch; | |
| 209 } | |
| 210 SDL_FreeSurface(icon_256); | |
| 211 | |
| 212 /* Copy mask inverted and upside-down to icon BMP */ | |
| 213 mdata = mask; | |
| 214 mwin32 = (Uint8 *)icon_win32 | |
| 215 +sizeof(*icon_win32)+icon_plen+icon_mlen-mask_pitch; | |
| 216 for ( row=0; row<icon->h; ++row ) { | |
| 217 for ( col=0; col<mask_pitch; ++col ) { | |
| 218 *mwin32++ = ~*mdata++; | |
| 219 } | |
| 220 mwin32 -= 2*mask_pitch; | |
| 221 } | |
| 222 | |
| 223 /* Finally, create the icon handle and set the window icon */ | |
| 224 screen_icn = CreateIconFromResourceEx((Uint8 *)icon_win32, icon_len, | |
| 225 TRUE, 0x00030000, icon->w, icon->h, LR_DEFAULTCOLOR); | |
| 226 if ( screen_icn == NULL ) { | |
| 227 SDL_SetError("Couldn't create Win32 icon handle"); | |
| 228 } else { | |
| 229 SetClassLong(SDL_Window, GCL_HICON, (LONG)screen_icn); | |
| 230 } | |
| 231 #endif /* DISABLE_ICON_SUPPORT */ | |
| 232 } | |
| 233 | |
| 234 void WIN_SetWMCaption(_THIS, const char *title, const char *icon) | |
| 235 { | |
| 236 #ifdef _WIN32_WCE | |
| 237 /* WinCE uses the UNICODE version */ | |
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238 int nLen = strlen(title)+1; |
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239 LPWSTR lpszW = alloca(nLen*2); |
| 0 | 240 MultiByteToWideChar(CP_ACP, 0, title, -1, lpszW, nLen); |
| 241 SetWindowText(SDL_Window, lpszW); | |
| 242 #else | |
| 243 SetWindowText(SDL_Window, title); | |
| 244 #endif | |
| 245 } | |
| 246 | |
| 247 int WIN_IconifyWindow(_THIS) | |
| 248 { | |
| 249 ShowWindow(SDL_Window, SW_MINIMIZE); | |
| 250 return(1); | |
| 251 } | |
| 252 | |
| 253 SDL_GrabMode WIN_GrabInput(_THIS, SDL_GrabMode mode) | |
| 254 { | |
| 255 if ( mode == SDL_GRAB_OFF ) { | |
| 256 ClipCursor(NULL); | |
| 257 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { | |
| 258 /* RJR: March 28, 2000 | |
| 259 must be leaving relative mode, move mouse from | |
| 260 center of window to where it belongs ... */ | |
| 261 POINT pt; | |
| 262 int x, y; | |
| 263 SDL_GetMouseState(&x,&y); | |
| 264 pt.x = x; | |
| 265 pt.y = y; | |
| 266 ClientToScreen(SDL_Window, &pt); | |
| 267 SetCursorPos(pt.x,pt.y); | |
| 268 } | |
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269 #ifdef _WIN32_WCE |
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270 if( input_catched ) |
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271 { |
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272 if( !CoreCatchInput ) LoadInputCatchFunc(); |
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273 |
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274 if( CoreCatchInput ) |
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275 CoreCatchInput(0); |
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276 } |
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277 #endif |
| 0 | 278 } else { |
| 279 ClipCursor(&SDL_bounds); | |
| 280 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { | |
| 281 /* RJR: March 28, 2000 | |
| 282 must be entering relative mode, get ready by | |
| 283 moving mouse to center of window ... */ | |
| 284 POINT pt; | |
| 285 pt.x = (SDL_VideoSurface->w/2); | |
| 286 pt.y = (SDL_VideoSurface->h/2); | |
| 287 ClientToScreen(SDL_Window, &pt); | |
| 288 SetCursorPos(pt.x, pt.y); | |
| 289 } | |
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290 #ifdef _WIN32_WCE |
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291 if( !input_catched ) |
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292 { |
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293 if( !CoreCatchInput ) LoadInputCatchFunc(); |
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294 |
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295 if( CoreCatchInput ) |
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296 CoreCatchInput(1); |
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297 } |
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298 #endif |
| 0 | 299 } |
| 300 return(mode); | |
| 301 } | |
| 302 | |
| 303 /* If 'info' is the right version, this function fills it and returns 1. | |
| 304 Otherwise, in case of a version mismatch, it returns -1. | |
| 305 */ | |
| 306 int WIN_GetWMInfo(_THIS, SDL_SysWMinfo *info) | |
| 307 { | |
| 308 if ( info->version.major <= SDL_MAJOR_VERSION ) { | |
| 309 info->window = SDL_Window; | |
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310 if ( SDL_VERSIONNUM(info->version.major, |
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311 info->version.minor, |
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312 info->version.patch) >= |
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313 SDL_VERSIONNUM(1, 2, 5) ) { |
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314 #ifdef HAVE_OPENGL |
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315 info->hglrc = GL_hrc; |
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316 #else |
|
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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317 info->hglrc = NULL; |
|
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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318 #endif |
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f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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319 } |
| 0 | 320 return(1); |
| 321 } else { | |
| 322 SDL_SetError("Application not compiled with SDL %d.%d\n", | |
| 323 SDL_MAJOR_VERSION, SDL_MINOR_VERSION); | |
| 324 return(-1); | |
| 325 } | |
| 326 } |