initial commit

2020-08-25 21:57:31 +03:00
commit 3e29fd4373
166 changed files with 24675 additions and 0 deletions
--- a/core/glframebuffer.h
+++ b/core/glframebuffer.h
@@ -0,0 +1,89 @@
+/*
+	QGL Framebuffer
+	Ivan Pelipenko peri4ko@yandex.ru
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef GLFRAMEBUFFER_H
+#define GLFRAMEBUFFER_H
+
+#include "glbuffer.h"
+
+
+class Framebuffer
+{
+	friend class FramebufferMipmap;
+public:
+	Framebuffer(QOpenGLExtraFunctions * f_, int colorAttachments = 1, bool withDepth = true, GLenum colorFormat = GL_RGBA8, GLenum _target = GL_TEXTURE_2D);
+	Framebuffer(QOpenGLExtraFunctions * f_, QVector<GLenum> colors_, bool withDepth = true, GLenum _target = GL_TEXTURE_2D);
+	virtual ~Framebuffer();
+
+	GLuint id() const {return fbo;}
+	GLuint colorTexture(int index = 0) const {return colors[index];}
+	//GLenum colorFormat() const {return color_format;}
+	GLuint depthTexture() const {return tex_d;}
+	GLenum target() const {return target_;}
+	bool isInit() const {return fbo != 0;}
+	int width() const {return wid;}
+	int height() const {return hei;}
+	QSize size() const {return QSize(wid, hei);}
+	QRect rect() const {return QRect(0, 0, wid, hei);}
+	QImage grab() const;
+	QVector<float> grabF(int index) const;
+	void queryPoint(int index, QPoint p);
+	void queryPoints(int index, QRect rect, GLenum pixel_format = GL_UNSIGNED_BYTE);
+	void queryImage(int index);
+	uint getPoint() const;
+	QVector<uint> getPointsByte() const;
+	QVector<QVector4D> getPointsFloat() const;
+	QImage getImage() const;
+	int queriedPoints() const {return pbo_queried;}
+	void blit(int index_from, GLuint fb_to, int index_to, QRect from, QRect to, GLbitfield mask = GL_COLOR_BUFFER_BIT, GLenum filter = GL_NEAREST) const;
+
+	void resize(int width, int height, bool force = false);
+	void bind();
+	void release();
+	void setReadBuffer(int index) {glReadBuffer(GL_COLOR_ATTACHMENT0 + index);}
+	void setWriteBuffer(int index);
+	void setWriteBuffers(const int * indeces, int count);
+	void setWriteBuffers(const QVector<int> & indeces) {setWriteBuffers(indeces.constData(), indeces.size());}
+	void setWriteBuffers();
+	void unsetWriteBuffers();
+	//void setColorFormat(GLenum format) {color_format = format; is_changed = true;}
+	void enablePixelBuffer();
+	void setColorTextureFiltering(int index, GLenum filter);
+
+	void copyDepthFrom(GLuint tex) {;}
+	void bindColorTexture(int index, int channel = 0);
+	void bindColorTextures();
+	void bindDepthTexture(int channel);
+
+private:
+	void deleteGLRenderbuffer(GLuint & drbo);
+	void deleteGLFramebuffer(GLuint & fbo);
+
+	bool is_depth, is_changed;
+	int pbo_queried;
+	QOpenGLExtraFunctions * f;
+	mutable Buffer pbo;
+	QVector<GLuint> colors;
+	QVector<GLenum> color_formats;
+	GLenum target_;
+	GLuint fbo, drbo, tex_d;
+	GLint prev_view[4], wid, hei;
+
+};
+
+#endif // GLFRAMEBUFFER_H