Menu
Is there anyone who can explain how hardware cursor works precisely? How does it relate to the graphics I'm drawing on the screen? I'm using OpenGL to draw, how does hardware cursor relate to OpenGL graphics?
EDIT: For those who may be interested in this in the future I just implemented what is needed to show the cursor with the hardware. The implementation was in the kernel and to use it simple ioctl's were sufficient. Works perfectly.
723
A computer mouse is a handheld hardware input device that controls a cursor in a GUI (graphical user interface) for pointing, moving and selecting text, icons, files, and folders on your computer.
A cursor is a moveable icon (generally moved with the mouse) that shows the user where any input into the computer will be placed or where an action will occur. For example, if the cursor is moved on the screen to a button in a program or application and the mouse left button is clicked, it will action.
1) A cursor is the position indicator on a computer display screen where a user can enter text. In an operating system with a graphical user interface (GUI), the cursor is also a visible and moving pointer that the user controls with a mouse, touch pad, or similar input device.
Hardware Cursor means, that the GPU provides to draw a (small) overlay picture over the screen framebuffer, which position can be changed by two registers (or so) on the GPU. So moving around the pointer doesn't require to redraw the portions of the framebuffer that were previously obstructed.
Relation to OpenGL: None!
66
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
