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Let userland retain the window backing store while drawing into it.
To start painting, call: gui$get_window_backing_store() Then finish up with: gui$release_window_backing_store() Process will retain the underlying GraphicsBitmap behind the scenes. This fixes racing between the WindowServer and GUI clients. This patch also adds a WSWindowLocker that is exactly what it sounds like.
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22 changed files with 244 additions and 102 deletions
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@ -67,15 +67,18 @@
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__ENUMERATE_SYSCALL(utime) \
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__ENUMERATE_SYSCALL(sync) \
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__ENUMERATE_SYSCALL(ptsname_r) \
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__ENUMERATE_SYSCALL(select) \
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__ENUMERATE_SYSCALL(unlink) \
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__ENUMERATE_SYSCALL(poll) \
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__ENUMERATE_SYSCALL(gui_create_window) \
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__ENUMERATE_SYSCALL(gui_destroy_window) \
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__ENUMERATE_SYSCALL(gui_get_window_backing_store) \
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__ENUMERATE_SYSCALL(gui_release_window_backing_store) \
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__ENUMERATE_SYSCALL(gui_invalidate_window) \
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__ENUMERATE_SYSCALL(select) \
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__ENUMERATE_SYSCALL(gui_get_window_parameters) \
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__ENUMERATE_SYSCALL(gui_set_window_parameters) \
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__ENUMERATE_SYSCALL(unlink) \
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__ENUMERATE_SYSCALL(poll) \
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__ENUMERATE_SYSCALL(gui_get_window_title) \
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__ENUMERATE_SYSCALL(gui_set_window_title) \
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__ENUMERATE_SYSCALL(gui_get_window_rect) \
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__ENUMERATE_SYSCALL(gui_set_window_rect) \
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struct fd_set;
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