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glfw/src/win32/win32_gamma.c
2010-10-13 04:04:43 +02:00

68 lines
2.4 KiB
C

//========================================================================
// GLFW - An OpenGL framework
// Platform: Win32/WGL
// API version: 2.7
// WWW: http://www.glfw.org/
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
#include <limits.h>
//************************************************************************
//**** GLFW internal functions ****
//************************************************************************
//========================================================================
// Save the gamma ramp to our internal copy
//========================================================================
void _glfwPlatformSaveGammaRamp(int ramp)
{
if (!_glfwLibrary.gammaSize)
{
return;
}
_glfw_GetDeviceGammaRamp(_glfwLibrary.Win32.desktopDC,
_glfwLibrary.gammaRamp[ramp]);
}
//========================================================================
// Restore the gamma ramp to our internal copy of the gamma ramp
//========================================================================
void _glfwPlatformRestoreGammaRamp(int ramp)
{
if (!_glfwLibrary.gammaSize)
{
return;
}
_glfw_SetDeviceGammaRamp(_glfwLibrary.Win32.desktopDC,
_glfwLibrary.gammaRamp[ramp]);
}