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| author | Torne Wuff <torne@wolfpuppy.org.uk> | 2009-10-16 20:15:12 +0000 |
|---|---|---|
| committer | Torne Wuff <torne@wolfpuppy.org.uk> | 2009-10-16 20:15:12 +0000 |
| commit | 27ece8c366b89fab05a47c342edc3edc18a6c5e3 (patch) | |
| tree | 6731c6beeb67dfb6d10cb35322c41e859c48b6ea /apps/plugins/lib/grey_scroll.c | |
| parent | a3f0a45c0f80b34310fffcce339d151365845c61 (diff) | |
| download | rockbox-27ece8c366b89fab05a47c342edc3edc18a6c5e3.zip rockbox-27ece8c366b89fab05a47c342edc3edc18a6c5e3.tar.gz rockbox-27ece8c366b89fab05a47c342edc3edc18a6c5e3.tar.bz2 rockbox-27ece8c366b89fab05a47c342edc3edc18a6c5e3.tar.xz | |
Pluginlib: make scroll functions clear screen if scrolled by >= screen size (from FS#10330)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23211 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/lib/grey_scroll.c')
| -rw-r--r-- | apps/plugins/lib/grey_scroll.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/apps/plugins/lib/grey_scroll.c b/apps/plugins/lib/grey_scroll.c index adecd3b..35f73b7 100644 --- a/apps/plugins/lib/grey_scroll.c +++ b/apps/plugins/lib/grey_scroll.c @@ -37,7 +37,10 @@ void grey_scroll_left(int count) int length, blank; if ((unsigned)count >= (unsigned)_grey_info.width) + { + grey_clear_display(); return; + } data = _grey_info.buffer; data_end = data + _GREY_MULUQ(_grey_info.width, _grey_info.height); @@ -62,7 +65,10 @@ void grey_scroll_right(int count) int length, blank; if ((unsigned)count >= (unsigned)_grey_info.width) + { + grey_clear_display(); return; + } data = _grey_info.buffer; data_end = data + _GREY_MULUQ(_grey_info.width, _grey_info.height); @@ -86,7 +92,10 @@ void grey_scroll_up(int count) int blank; if ((unsigned)count >= (unsigned)_grey_info.height) + { + grey_clear_display(); return; + } shift = _GREY_MULUQ(_grey_info.width, count); length = _GREY_MULUQ(_grey_info.width, _grey_info.height - count); @@ -105,7 +114,10 @@ void grey_scroll_down(int count) int blank; if ((unsigned)count >= (unsigned)_grey_info.height) + { + grey_clear_display(); return; + } shift = _GREY_MULUQ(_grey_info.width, count); length = _GREY_MULUQ(_grey_info.width, _grey_info.height - count); @@ -126,7 +138,10 @@ void grey_ub_scroll_left(int count) int blank, length; if ((unsigned)count >= (unsigned)_grey_info.width) + { + grey_ub_clear_display(); return; + } data = _grey_info.values; data_end = data + _GREY_MULUQ(_grey_info.width, _grey_info.height); @@ -156,7 +171,10 @@ void grey_ub_scroll_right(int count) int blank, length; if ((unsigned)count >= (unsigned)_grey_info.width) + { + grey_ub_clear_display(); return; + } data = _grey_info.values; data_end = data + _GREY_MULUQ(_grey_info.width, _grey_info.height); @@ -185,7 +203,10 @@ void grey_ub_scroll_up(int count) int blank; if ((unsigned)count >= (unsigned)_grey_info.height) + { + grey_ub_clear_display(); return; + } dst = _grey_info.values; end = dst + _GREY_MULUQ(_grey_info.height, _grey_info.width); @@ -257,7 +278,10 @@ void grey_ub_scroll_down(int count) int blank; if ((unsigned)count >= (unsigned)_grey_info.height) + { + grey_ub_clear_display(); return; + } start = _grey_info.values; dst = start + _GREY_MULUQ(_grey_info.height, _grey_info.width); |