openspades/Sources/Draw/GLAutoExposureFilter.h

46 lines
1.2 KiB
C++

/*
Copyright (c) 2015 yvt
This file is part of OpenSpades.
OpenSpades is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenSpades 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenSpades. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "GLFramebufferManager.h"
namespace spades {
namespace draw {
class GLRenderer;
class GLProgram;
class GLAutoExposureFilter {
GLProgram *thru;
GLProgram *computeGain;
GLProgram *preprocess;
GLRenderer &renderer;
// 1x1 of framebuffer that holds the scene brightness
IGLDevice::UInteger exposureFramebuffer;
IGLDevice::UInteger exposureTexture;
public:
GLAutoExposureFilter(GLRenderer &);
~GLAutoExposureFilter();
GLColorBuffer Filter(GLColorBuffer, float dt);
};
} // namespace draw
} // namespace spades