Processing and Displaying Image on Widget

[anda_skoa]

For such high througput rendering you probably have to use a more direct rendering approach, e.g. OpenGL.

It might be worthwhile to look into creating a QCamera backend and then use the existing video widget infrastructure.

Cheers,
_

[mhb88]

Do you know any tutorials that start from foundation and builds up to it?
I don't have any experience with OpenGL.
I found most tutorials to be about QGLWidget.
But in the new versions of Qt 5, QOpenGLWidget is intended to be a modern replacement for QGLWidget.
I haven't been able find a good tutorial for QOpenGLWidget.

cheers

[anda_skoa]

No, sorry, I haven't had anything to do with that yet myself either.

Cheers,
_

[mhb88]

I was wondering if this would work?
a function is getting a pointer to a QImage as a parameter.
I want to copy the entire QImage to a buffer of that is going to hold 100 QImages.

public:
    void function(QImage *frame);
 
protected:
    enum{size = 100};
    QImage *data[size];
    int front; // points to the front of the buffer

public:
    void function(QImage *frame);
    
protected:
    enum{size = 100};
    QImage *data[size];
    int front; // points to the front of the buffer

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void Buffer::function(QImage *frame)
{
     ++front; // Increment front.
     if (front == size)
         front = 0; // Wrap around.    
 
     data[front] = frame;
}

void Buffer::function(QImage *frame)
{
     ++front; // Increment front.
     if (front == size)
         front = 0; // Wrap around.    

     data[front] = frame;
}

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cheers

[anda_skoa]

Sure, why not.
I assume you handle deletion of the QImage pointers somewhere else?

Cheers,
_