49 lines
1.5 KiB
Text
49 lines
1.5 KiB
Text
compositors listen on the socket id "hilbert.compositor".
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when a window is opened by an application, that window can only be referred to
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on that socket. the opaque value given in the "window opened" message refers to
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that window in future messages on that socket. it is guaranteed to be distinct
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for different windows on the same socket, and in no way guaranteed to be
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distinct for different windows on different sockets. the window is bound
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just to the socket, not to the application. if the socket where a window
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was created is gifted to a new process, the new process has complete control
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over the window, and the compositor does not need to be informed.
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data types:
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color:
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opaque dword (result of encode color system call).
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from c++, use euler::syscall::encode_color in euler/syscall.hpp.
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color rectangle:
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multiple hilbert colors, top to bottom by row, left to right within row
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window:
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opaque word (given in "window opened" message after "open window" message)
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messages from applications to compositor:
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open window:
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byte: 0x00
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dword: window width
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dword: window height
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update window region:
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byte: 0x01
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window: the window
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dword: start x
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dword: start y
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dword: width
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dword: height
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color rectangle: the data
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close window:
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byte: 0x02
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window: the window
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messages from compositor to application:
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window opened:
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byte: 0x00
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window: the window
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these come in the order the open window requests were received
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