context reinit support

core/glbuffer.cpp

@@ -48,6 +48,12 @@ void Buffer::destroy(QOpenGLExtraFunctions * f) {
 }
 
 
+void Buffer::reinit() {
+	buffer_ = 0;
+	prev_size = 0;
+}
+
+
 void Buffer::bind(QOpenGLExtraFunctions * f) {
 	//qDebug() << "bind" << target_ << buffer_;
 	f->glBindBuffer(target_, buffer_);

core/glbuffer.h

@@ -31,6 +31,7 @@ public:
 
 	void init    (QOpenGLExtraFunctions * f);
 	void destroy (QOpenGLExtraFunctions * f);
+	void reinit();
 
 	void bind    (QOpenGLExtraFunctions * f);
 	void release (QOpenGLExtraFunctions * f);

core/glframebuffer.cpp

@@ -50,7 +50,7 @@ Framebuffer::Framebuffer(QOpenGLExtraFunctions * f_, QVector<GLenum> colors_, bo
 
 
 Framebuffer::~Framebuffer() {
-	deleteGLFramebuffer(fbo);
+	if (fbo > 0) deleteGLFramebuffer(fbo);
 	deleteGLRenderbuffer(drbo);
 	for (int i = 0; i < colors.size(); ++i)
 		deleteGLTexture(f, colors[i]);
@@ -59,12 +59,15 @@ Framebuffer::~Framebuffer() {
 
 
 void Framebuffer::resize(int width, int height, bool force) {
-	if ((wid == width) && (hei == height) && !force) return;
+	if (fbo > 0) {
+		if ((wid == width) && (hei == height) && !force) return;
+	}
 	wid = width;
 	hei = height;
-	deleteGLFramebuffer(fbo);
+	if (fbo > 0) deleteGLFramebuffer(fbo);
 	f->glGenFramebuffers(1, &fbo);
 	f->glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+	//qDebug() << "resize" << f << wid << hei << fbo;
 	for (int i = 0; i < colors.size(); ++i) {
 		deleteGLTexture(f, colors[i]);
 		createGLTexture(f, colors[i], width, height, color_formats[i], target_);
@@ -77,7 +80,7 @@ void Framebuffer::resize(int width, int height, bool force) {
 	}
 	if (is_depth) {
 		deleteGLTexture(f, tex_d);
-		deleteGLRenderbuffer(drbo);
+		if (drbo > 0) deleteGLRenderbuffer(drbo);
 		f->glGenRenderbuffers(1, &drbo);
 		f->glBindRenderbuffer(GL_RENDERBUFFER, drbo);
 		f->glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, width, height);
@@ -97,6 +100,16 @@ void Framebuffer::resize(int width, int height, bool force) {
 }
 
 
+void Framebuffer::reinit() {
+	pbo.reinit();
+	colors.fill(0);
+	fbo = drbo = 0;
+	tex_d = 0;
+	pbo_queried = 0;
+	is_changed = true;
+}
+
+
 QImage Framebuffer::grab() const {
 	return QImage();
 }

core/glframebuffer.h

@@ -52,6 +52,7 @@ public:
 	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 reinit();
 	void bind();
 	void release();
 	void setReadBuffer(int index) {glReadBuffer(GL_COLOR_ATTACHMENT0 + index);}

core/glframebuffer_mipmap.cpp

@@ -48,3 +48,9 @@ void FramebufferMipmap::create() {
 	for (int i = 0; i < fbo.size() - 1; ++i)
 		fbo[i]->blit(0, fbo[i + 1]->id(), 0, fbo[i]->rect(), fbo[i + 1]->rect(), GL_COLOR_BUFFER_BIT, GL_LINEAR);
 }
+
+
+void FramebufferMipmap::reinit() {
+	for (auto * f: fbo)
+		f->reinit();
+}

core/glframebuffer_mipmap.h

@@ -39,6 +39,7 @@ public:
 
 	void resize();
 	void create();
+	void reinit();
 
 private:
 	int index_from;

core/glmesh.cpp

@@ -64,6 +64,16 @@ void Mesh::init(QOpenGLExtraFunctions * f) {
 }
 
 
+void Mesh::reinit() {
+	buffer_geom.reinit();
+	buffer_ind .reinit();
+	QMapIterator<int, VertexObject * > it(vao_map);
+	while (it.hasNext())
+		it.next().value()->reinit();
+	changed = true;
+}
+
+
 void Mesh::destroy(QOpenGLExtraFunctions * f) {
 	buffer_geom.destroy(f);
 	buffer_ind .destroy(f);

core/glmesh.h

@@ -37,6 +37,7 @@ public:
 	void destroy (QOpenGLExtraFunctions * f);
 	bool rebuffer(QOpenGLExtraFunctions * f);
 	void draw    (QOpenGLExtraFunctions * f, int count, int type = 0);
+	void reinit();
 	void clear();
 	void loadObject    (QOpenGLExtraFunctions * f, const QGLEngineShaders::Object & object, int type = 0);
 	void loadObjects   (QOpenGLExtraFunctions * f, const QVector<QGLEngineShaders::Object> & objects, int type = 0);

core/glshaders.cpp

@@ -66,7 +66,6 @@ QString prepareDefines(const QStringList & defines) {
 bool QGLEngineShaders::loadShadersMulti(QOpenGLShaderProgram *& prog, const QString & file, bool add_qgl, const QStringList & defines) {
 	if (!prog)
 		prog = new QOpenGLShaderProgram();
-	prog->removeAllShaders();
 	QFile f(file);
 	if (!f.open(QIODevice::ReadOnly)) {
 		qDebug() << "[QGLEngine] Shader" << file << "Error: can`t open file!";

core/gltexturearray.cpp

@@ -48,6 +48,12 @@ void Texture2DArray::destroy(QOpenGLExtraFunctions * f) {
 }
 
 
+void Texture2DArray::reinit() {
+	texture_ = 0;
+	layers_ = 0;
+}
+
+
 void Texture2DArray::bind(QOpenGLExtraFunctions * f, int channel) {
 	f->glActiveTexture(GL_TEXTURE0 + channel);
 	f->glBindTexture(target_, texture_);

core/gltexturearray.h

@@ -30,6 +30,7 @@ public:
 
 	void init    (QOpenGLExtraFunctions * f);
 	void destroy (QOpenGLExtraFunctions * f);
+	void reinit();
 
 	void bind    (QOpenGLExtraFunctions * f, int channel = 0);
 	void release (QOpenGLExtraFunctions * f);

core/glvertexobject.cpp

@@ -55,6 +55,15 @@ void VertexObject::destroy(QOpenGLExtraFunctions * f) {
 }
 
 
+void VertexObject::reinit() {
+	vao_ = 0;
+	buffer_obj.reinit();
+	buffer_sel.reinit();
+	buffers_binded = false;
+	objects_changed = selected_changed = true;
+}
+
+
 void VertexObject::bind(QOpenGLExtraFunctions * f) {
 	//qDebug() << "bind" << target_ << buffer_;
 	f->glBindVertexArray(vao_);

core/glvertexobject.h

@@ -31,6 +31,7 @@ public:
 
 	void init    (QOpenGLExtraFunctions * f);
 	void destroy (QOpenGLExtraFunctions * f);
+	void reinit();
 
 	void bind    (QOpenGLExtraFunctions * f);
 	void release (QOpenGLExtraFunctions * f);