99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
/*
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QGLView
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Copyright (C) 2020 Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GLVBO_H
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#define GLVBO_H
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#include "gltypes.h"
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#include "chunkstream.h"
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class GLVBO : protected QOpenGLFunctions
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{
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friend class GLObjectBase;
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friend QDataStream & operator <<(QDataStream & s, const GLVBO & m);
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friend QDataStream & operator >>(QDataStream & s, GLVBO & m);
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public:
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GLVBO(GLenum usage = GL_DYNAMIC_DRAW);
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~GLVBO();
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//GLVBO & operator =(const GLVBO & o) {return *this;}
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void init();
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void destroy();
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bool rebuffer(bool clear_ = false);
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void draw(GLenum type, QOpenGLShaderProgram * prog, bool simplest = false);
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void clear();
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GLuint buffer() const {return buffer_;}
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int verticesCount() const {return vertices_.size() / 3;}
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bool isInit() const {return buffer_ != 0;}
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bool isEmpty() const {return vertices_.size() < 3;}
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QVector<GLfloat> & vertices() {changed = true; return vertices_;}
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QVector<GLfloat> & normals() {changed = true; return normals_;}
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QVector<GLfloat> & texcoords() {changed = true; return texcoords_;}
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QVector<GLfloat> & colors() {changed = true; return colors_;}
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void translatePoints(const QVector3D & dp);
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void scalePoints(const QVector3D & dp);
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bool saveToFile(const QString & filename);
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bool loadFromFile(const QString & filename);
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Box3D boundingBox() const;
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private:
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void calculateBinormals();
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QVector<GLfloat> vertices_, normals_, texcoords_, colors_, tangents_, bitangents_;
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QVector<int> locs;
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GLenum usage;
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GLuint buffer_, va_;
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int vert_count;
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bool changed, has_normals, has_texcoords, has_colors, has_binormals;
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};
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inline QDataStream & operator <<(QDataStream & s, const GLVBO & m) {
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ChunkStream cs;
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//qDebug() << "place VBO" << m.vertices_.size() << m.normals_.size() << m.texcoords_.size() << m.colors_.size() << "...";
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cs << cs.chunk(1, m.vertices_) << cs.chunk(2, m.normals_) << cs.chunk(3, m.texcoords_) << cs.chunk(4, m.colors_) << cs.chunk(5, m.usage);
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//qDebug() << "place VBO done" << cs.data().size() << "...";
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s << qCompress(cs.data()); return s;
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}
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inline QDataStream & operator >>(QDataStream & s, GLVBO & m) {
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QByteArray ba;
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s >> ba;
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ba = qUncompress(ba);
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ChunkStream cs(ba);
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while (!cs.atEnd()) {
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switch (cs.read()) {
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case 1: m.vertices_ = cs.getData<QVector<GLfloat> >(); break;
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case 2: m.normals_ = cs.getData<QVector<GLfloat> >(); break;
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case 3: m.texcoords_ = cs.getData<QVector<GLfloat> >(); break;
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case 4: m.colors_ = cs.getData<QVector<GLfloat> >(); break;
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case 5: m.usage = cs.getData<GLenum>(); break;
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}
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}
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m.changed = true;
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return s;
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}
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#endif // GLVBO_H
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