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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#ifndef _OGLSurface_H_
#define _OGLSurface_H_
#include "../api.h"
#include "../base/GLMHelper.h"
#include "../graphics/Bitmap.h"
#include "../graphics/OGLHelper.h"
#include "../graphics/StandardShader.h"
#include <vector>
#include <string>
namespace avg {
class GLTexture;
typedef boost::shared_ptr<GLTexture> GLTexturePtr;
class AVG_API OGLSurface {
public:
OGLSurface();
virtual ~OGLSurface();
virtual void create(PixelFormat pf, GLTexturePtr pTex0,
GLTexturePtr pTex1 = GLTexturePtr(), GLTexturePtr pTex2 = GLTexturePtr(),
GLTexturePtr pTex3 = GLTexturePtr());
void setMask(GLTexturePtr pTex);
virtual void destroy();
void activate(const IntPoint& logicalSize = IntPoint(1,1),
bool bPremultipliedAlpha = false) const;
GLTexturePtr getTex(int i=0) const;
void setMaskCoords(glm::vec2 maskPos, glm::vec2 maskSize);
PixelFormat getPixelFormat();
IntPoint getSize();
IntPoint getTextureSize();
bool isCreated() const;
void setColorParams(const glm::vec3& gamma, const glm::vec3& brightness,
const glm::vec3& contrast);
void setAlphaGamma(float gamma);
bool isDirty() const;
void resetDirty();
private:
glm::mat4 calcColorspaceMatrix() const;
bool colorIsModified() const;
GLTexturePtr m_pTextures[4];
IntPoint m_Size;
PixelFormat m_pf;
GLTexturePtr m_pMaskTexture;
glm::vec2 m_MaskPos;
glm::vec2 m_MaskSize;
glm::vec3 m_Gamma;
glm::vec3 m_Brightness;
glm::vec3 m_Contrast;
float m_AlphaGamma;
bool m_bIsDirty;
};
}
#endif
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