bloom.h

/*
    Copyright (C) 2011 Andrew Caudwell (acaudwell@gmail.com)

    This program 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.

    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef GOURCE_BLOOM_VBO_H
#define GOURCE_BLOOM_VBO_H

#include <stack>

#include "core/display.h"
#include "core/vectors.h"
#include "core/logger.h"

//note this should be 64 bytes
class bloom_vertex {
public:
    bloom_vertex() {};
    bloom_vertex(const vec2& pos, const vec4& colour, const vec4& texcoord) :
        pos(pos), colour(colour), texcoord(texcoord) {};

    vec2 pos;
    vec4 colour;
    vec4 texcoord;
    char padding[24];
};

class bloombuf {

    bloom_vertex* data;
    int data_size;

    GLuint bufferid;
    int buffer_size;

    int vertex_count;

    void resize(int new_size);
public:
    bloombuf(int data_size = 0);
    ~bloombuf();

    void unload();
    void reset();

    size_t vertices();
    size_t capacity();

    void add(GLuint textureid, const vec2& pos, const vec2& dims, const vec4& colour, const vec4& texcoord);

    void update();
    void draw();
};

#endif