59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/*
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QGLView
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Copyright (C) 2019 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 GLBUFFER_H
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#define GLBUFFER_H
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#include "gltypes.h"
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class Buffer
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{
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friend class ObjectBase;
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public:
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Buffer(GLenum target, GLenum usage = GL_DYNAMIC_DRAW);
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~Buffer();
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void init (QOpenGLExtraFunctions * f);
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void destroy (QOpenGLExtraFunctions * f);
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void bind (QOpenGLExtraFunctions * f);
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void release (QOpenGLExtraFunctions * f);
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void * map (QOpenGLExtraFunctions * f, GLbitfield mode, int size = -1);
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void unmap (QOpenGLExtraFunctions * f);
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// returns true if size changed
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bool resize (QOpenGLExtraFunctions * f, int new_size);
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void load (QOpenGLExtraFunctions * f, const void * data, int size, int offset = 0);
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GLuint ID() const {return buffer_;}
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GLenum usage() const {return usage_;}
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GLenum target() const {return target_;}
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void setTarget(GLenum t) {target_ = t;}
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bool isInit() const {return buffer_ != 0;}
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private:
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GLenum target_, usage_;
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GLuint buffer_;
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int prev_size;
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};
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#endif // GLBUFFER_H
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