Since the Linux version 3. X, Linux driver display frame has change the framebuffer DRM framework, the framework shows is complicated, in before, if you need to obtain real-time display of data, you just need to get the node buffer can, DRM now do not have this function,
Reason:
On display (LCD), usually spend screen, but through the android screencap instructions to capture is complete image, and between screencap screenshots to show between the GPU and DRM codec, is a platform to facilitate further analysis the problem or a problem with the LCD, then put forward the following requirements
Requirements: want to obtain the data after dealing with the GPU and DRM, like Linux version before directly obtained framebuffer, access to send show that when the last data buffer,
CodePudding user response:
Excuse me somebody know idea?