Mercurial > sdl-ios-xcode
diff src/video/win32/SDL_win32gamma.c @ 1733:0b1070f2f94d SDL-1.3
Implemented gamma correction on Windows.
Added general code to restore the video mode and gamma when windows lose focus.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 09 Jul 2006 09:02:26 +0000 |
parents | |
children | 99210400e8b9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/video/win32/SDL_win32gamma.c Sun Jul 09 09:02:26 2006 +0000 @@ -0,0 +1,63 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2006 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +#include "SDL_win32video.h" + + +int +WIN_SetDisplayGammaRamp(_THIS, Uint16 * ramp) +{ + SDL_DisplayData *data = (SDL_DisplayData *) SDL_CurrentDisplay.driverdata; + HDC hdc; + BOOL succeeded = FALSE; + + hdc = CreateDC(data->DeviceName, NULL, NULL, NULL); + if (hdc) { + succeeded = SetDeviceGammaRamp(hdc, ramp); + if (!succeeded) { + WIN_SetError("SetDeviceGammaRamp()"); + } + DeleteDC(hdc); + } + return succeeded ? 0 : -1; +} + +int +WIN_GetDisplayGammaRamp(_THIS, Uint16 * ramp) +{ + SDL_DisplayData *data = (SDL_DisplayData *) SDL_CurrentDisplay.driverdata; + HDC hdc; + BOOL succeeded = FALSE; + + hdc = CreateDC(data->DeviceName, NULL, NULL, NULL); + if (hdc) { + succeeded = GetDeviceGammaRamp(hdc, ramp); + if (!succeeded) { + WIN_SetError("GetDeviceGammaRamp()"); + } + DeleteDC(hdc); + } + return succeeded ? 0 : -1; +} + +/* vi: set ts=4 sw=4 expandtab: */