patch 9.1.0215: Half-page scrolling does not support smooth-scrolling Commit: https://github.com/vim/vim/commit/5a2e3ec9ac72b6e644fea4ebba7e632498296e2f Author: Luuk van Baal <luukvbaal@gmail.com> Date: Thu Mar 28 10:07:29 2024 +0100 patch 9.1.0215: Half-page scrolling does not support smooth-scrolling Problem: Page-wise scrolling with Ctrl-D/Ctrl-U implements it's own logic to change the topline and cursor. More logic than necessary for scrolling with Ctrl-F/Ctrl-B was removed in patch 9.1.0211. Solution: Re-use the logic from Ctrl-E/Ctrl-Y/Ctrl-F/Ctrl-B while staying backward compatible as much as possible. Restore some of the logic that determined how many lines will be scrolled (Luuk van Baal) closes: #14316 Signed-off-by: Luuk van Baal <luukvbaal@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>

/* memfile.c */
memfile_T *mf_open(char_u *fname, int flags);
int mf_open_file(memfile_T *mfp, char_u *fname);
void mf_close(memfile_T *mfp, int del_file);
void mf_close_file(buf_T *buf, int getlines);
void mf_new_page_size(memfile_T *mfp, unsigned new_size);
bhdr_T *mf_new(memfile_T *mfp, int negative, int page_count);
bhdr_T *mf_get(memfile_T *mfp, blocknr_T nr, int page_count);
void mf_put(memfile_T *mfp, bhdr_T *hp, int dirty, int infile);
void mf_free(memfile_T *mfp, bhdr_T *hp);
int mf_sync(memfile_T *mfp, int flags);
void mf_set_dirty(memfile_T *mfp);
int mf_release_all(void);
blocknr_T mf_trans_del(memfile_T *mfp, blocknr_T old_nr);
void mf_set_ffname(memfile_T *mfp);
void mf_fullname(memfile_T *mfp);
int mf_need_trans(memfile_T *mfp);
/* vim: set ft=c : */