ClipmapApplication.h

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/* Copyright (c) 2014-2017, ARM Limited and Contributors
 *
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge,
 * to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef CLIPMAP_APPLICATION_H__
#define CLIPMAP_APPLICATION_H__

#include <GLES3/gl3.h>
#include <string>

#include "GroundMesh.h"
#include "Heightmap.h"
#include "vector_math.h"

class ClipmapApplication
{
public:
    ClipmapApplication(unsigned int size, unsigned int levels, float clip_scale);
    ~ClipmapApplication();
    void render(unsigned int viewport_width, unsigned int viewport_height);

private:
    GLuint program;
    GLuint compile_program(const char *vertex_shader_source, const char *fragment_shader_source);
    GLuint compile_shader(GLenum type, const char *source);
    std::string load_shader_string(const char *path);

    GroundMesh mesh;
    Heightmap heightmap;

    GLint mvp_loc;
    GLint camera_pos_loc;
    int frame;
};

#endif