glut_viewer.h

/*
 * Fermat
 *
 * Copyright (c) 2016-2019, NVIDIA CORPORATION. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *    * Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *    * Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *    * Neither the name of the NVIDIA CORPORATION nor the
 *      names of its contributors may be used to endorse or promote products
 *      derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <renderer.h>
#include <GL/freeglut.h>
#include <buffers.h>
#include <vector>
#include <cugar/basic/threads.h>

// A class encpasulating our GLUT renderer
//
struct GlutViewer : public RenderingContext
{
    enum Orientation { X_UP, Y_UP, Z_UP };

    void init(int argc, char** argv);

    static void display();
    static void idle();
    static void mouse(int button, int state, int x, int y);
    static void motion(int x, int y);
    static void keyboard(unsigned char character, int x, int y);

    GLuint                  m_texture;
    Camera                  m_camera_o;
    DirectionalLight        m_light_o;
    int2                    m_mouse;
    float                   m_mouse_depth;
    bool                    m_dollying;
    bool                    m_panning;
    bool                    m_walking;
    bool                    m_zooming;
    bool                    m_moving_selection;
    bool                    m_light_rotation;
    Orientation             m_orientation;
    bool                    m_dirty;
    bool                    m_dirty_geo;
    uint32                  m_instance;
    uint32                  m_selected_group;
    char                    m_output_name[1024];
    FILE*                   m_ffmpeg;
    FILE*                   m_camera_path;
    bool                    m_record;
    bool                    m_playback;
    bool                    m_accumulation;

    cugar::Mutex mutex;
};

// global RenderingContext instance
extern GlutViewer* s_renderer;

// main entry point to start the viewer
FERMAT_API void start_glut_viewer(int argc, char** argv);