refactor display, surface; get_frame_buffer will return NULL if no UI update

This commit is contained in:
idea4good
2018-12-17 15:51:00 +08:00
parent 78f42abe7b
commit bb90464136
17 changed files with 109 additions and 97 deletions

4
doc/UML.md Normal file
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## Class structure
![class-structure](uml-class.png)
## UI process
![ui-process](uml-ui-process.png)