75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
/*
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QGLView
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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 Lesser 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser 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 GLFRAMEBUFFER_H
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#define GLFRAMEBUFFER_H
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#include "gltypes.h"
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#include <QOpenGLExtraFunctions>
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class GLFramebuffer: protected QOpenGLExtraFunctions {
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public:
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GLFramebuffer(int colorAttachments = 1, bool withDepth = true, GLenum colorFormat = GL_RGBA8, GLenum target = GL_TEXTURE_2D);
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virtual ~GLFramebuffer();
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GLuint id() const { return fbo; }
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GLuint colorTexture(int index = 0) const { return colors[index]; }
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GLenum colorFormat() const { return color_format; }
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GLuint depthTexture() const { return tex_d; }
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GLenum target() const { return target_; }
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int width() const { return wid; }
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int height() const { return hei; }
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QSize size() const { return QSize(wid, hei); }
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QImage grab() const;
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void resize(int width, int height, bool force = false);
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void bind();
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void release();
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void setReadBuffer(int index) { glReadBuffer(GL_COLOR_ATTACHMENT0 + index); }
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void setWriteBuffer(int index);
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void setWriteBuffers(int * indeces, int count);
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void setColorFormat(GLenum format) {
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color_format = format;
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is_changed = true;
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}
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void copyDepthFrom(GLuint tex) { ; }
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void bindColorTextures();
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void bindDepthTexture(int channel);
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private:
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void deleteGLRenderbuffer(GLuint & drbo) {
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if (drbo != 0) glDeleteRenderbuffers(1, &drbo);
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drbo = 0;
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}
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void deleteGLFramebuffer(GLuint & fbo) {
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if (fbo != 0) glDeleteFramebuffers(1, &fbo);
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fbo = 0;
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}
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bool is_depth, is_changed;
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QVector<GLuint> colors;
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GLenum color_format, target_;
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GLuint fbo, drbo, tex_d;
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GLint prev_view[4], wid, hei;
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};
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#endif // GLFRAMEBUFFER_H
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