finished prototype of nodes providing a texture to a viewer

app/node/generator/solid/solid.cpp

@@ -1,14 +1,45 @@
 #include "solid.h"
 
 SolidGenerator::SolidGenerator(QObject *parent) :
-  Node(parent)
+  Node(parent),
+  texture_(nullptr)
 {
+  texture_output_ = new NodeOutput(this);
+  texture_output_->set_data_type(NodeOutput::kTexture);
+}
 
+QString SolidGenerator::Name()
+{
+  return tr("Solid");
+}
+
+QString SolidGenerator::Category()
+{
+  return tr("Generator");
+}
+
+QString SolidGenerator::Description()
+{
+  return tr("Generate a solid color.");
+}
+
+NodeOutput *SolidGenerator::texture_output()
+{
+  return texture_output_;
 }
 
 void SolidGenerator::Process(const rational &time)
 {
   Q_UNUSED(time)
 
+  // FIXME: Test code
+  if (texture_ == nullptr) {
+    QImage img(1920, 1080, QImage::Format_RGBA8888_Premultiplied);
+    img.fill(Qt::red);
 
+    texture_ = new QOpenGLTexture(img);
+  }
+
+  texture_output_->set_value(texture_->textureId());
+  // End test code
 }