libreoffice/canvas/source/opengl/ogl_buffercontext.hxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#ifndef INCLUDED_CANVAS_SOURCE_OPENGL_OGL_BUFFERCONTEXT_HXX
#define INCLUDED_CANVAS_SOURCE_OPENGL_OGL_BUFFERCONTEXT_HXX

#include <GL/glew.h>

#include <sal/config.h>
#include <memory>

namespace oglcanvas
{
    struct IBufferContext
    {
        virtual ~IBufferContext() {}

        /// start render to buffer. changes current framebuffer
        virtual bool startBufferRendering() = 0;

        /// end render to buffer. switches to default framebuffer
        virtual bool endBufferRendering() = 0;

        virtual GLuint getTextureId() = 0;
    };

    typedef std::shared_ptr<IBufferContext> IBufferContextSharedPtr;
}

#endif

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