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Greyscale library: Plugins can now put the management structure in IRAM for higher update speed. Use this in doom, mpegplayer, and zxbox. Made the api pointer part of the struct.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16066 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2008-01-13 00:11:43 +00:00
parent 43cc03457d
commit a72499a125
15 changed files with 110 additions and 90 deletions
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45
apps/plugins/lib/grey_scroll.c
View file

@ -45,9 +45,9 @@ void grey_scroll_left(int count)
do
{
_grey_rb->memmove(data, data + count, length);
_grey_info.rb->memmove(data, data + count, length);
data += length;
_grey_rb->memset(data, blank, count);
_grey_info.rb->memset(data, blank, count);
data += count;
}
while (data < data_end);
@ -70,8 +70,8 @@ void grey_scroll_right(int count)
do
{
_grey_rb->memmove(data + count, data, length);
_grey_rb->memset(data, blank, count);
_grey_info.rb->memmove(data + count, data, length);
_grey_info.rb->memset(data, blank, count);
data += _grey_info.width;
}
while (data < data_end);
@ -91,8 +91,9 @@ void grey_scroll_up(int count)
blank = (_grey_info.drawmode & DRMODE_INVERSEVID) ?
_grey_info.fg_val : _grey_info.bg_val;
_grey_rb->memmove(_grey_info.buffer, _grey_info.buffer + shift, length);
_grey_rb->memset(_grey_info.buffer + length, blank, shift);
_grey_info.rb->memmove(_grey_info.buffer, _grey_info.buffer + shift,
length);
_grey_info.rb->memset(_grey_info.buffer + length, blank, shift);
}
/* Scroll down */
@ -109,8 +110,9 @@ void grey_scroll_down(int count)
blank = (_grey_info.drawmode & DRMODE_INVERSEVID) ?
_grey_info.fg_val : _grey_info.bg_val;
_grey_rb->memmove(_grey_info.buffer + shift, _grey_info.buffer, length);
_grey_rb->memset(_grey_info.buffer, blank, shift);
_grey_info.rb->memmove(_grey_info.buffer + shift, _grey_info.buffer,
length);
_grey_info.rb->memset(_grey_info.buffer, blank, shift);
}
/*** Unbuffered scrolling functions ***/
@ -155,7 +157,7 @@ void grey_ub_scroll_left(int count)
if ((unsigned)count >= (unsigned)_grey_info.width)
return;
data = _grey_info.values;
data_end = data + _GREY_MULUQ(_grey_info.width, _grey_info.height);
length = (_grey_info.width - count) << _GREY_BSHIFT;
@ -165,9 +167,9 @@ void grey_ub_scroll_left(int count)
do
{
_grey_rb->memmove(data, data + count, length);
_grey_info.rb->memmove(data, data + count, length);
data += length;
_grey_rb->memset(data, blank, count);
_grey_info.rb->memset(data, blank, count);
data += count;
}
while (data < data_end);
@ -181,7 +183,7 @@ void grey_ub_scroll_right(int count)
if ((unsigned)count >= (unsigned)_grey_info.width)
return;
data = _grey_info.values;
data_end = data + _GREY_MULUQ(_grey_info.width, _grey_info.height);
length = (_grey_info.width - count) << _GREY_BSHIFT;
@ -191,8 +193,8 @@ void grey_ub_scroll_right(int count)
do
{
_grey_rb->memmove(data + count, data, length);
_grey_rb->memset(data, blank, count);
_grey_info.rb->memmove(data + count, data, length);
_grey_info.rb->memset(data, blank, count);
data += _grey_info.width << _GREY_BSHIFT;
}
while (data < data_end);
@ -206,7 +208,7 @@ void grey_ub_scroll_up(int count)
if ((unsigned)count >= (unsigned)_grey_info.height)
return;
dst = _grey_info.values;
end = dst + _GREY_MULUQ(_grey_info.height, _grey_info.width);
blank = (_grey_info.drawmode & DRMODE_INVERSEVID) ?
@ -258,10 +260,10 @@ void grey_ub_scroll_up(int count)
int blen = _GREY_MULUQ(_grey_info.height - count, _grey_info.width);
src = dst + _GREY_MULUQ(count, _grey_info.width);
_grey_rb->memmove(dst, src, blen);
_grey_info.rb->memmove(dst, src, blen);
dst += blen;
}
_grey_rb->memset(dst, blank, end - dst); /* Fill remainder at once. */
_grey_info.rb->memset(dst, blank, end - dst); /* Fill remainder at once. */
}
/* Scroll down */
@ -272,7 +274,7 @@ void grey_ub_scroll_down(int count)
if ((unsigned)count >= (unsigned)_grey_info.height)
return;
start = _grey_info.values;
dst = start + _GREY_MULUQ(_grey_info.height, _grey_info.width);
blank = (_grey_info.drawmode & DRMODE_INVERSEVID) ?
@ -304,7 +306,7 @@ void grey_ub_scroll_down(int count)
}
while (dst < line_end);
}
for (; ~yd & _GREY_BMASK; yd--) /* Fill remainder of current block. */
for (; ~yd & _GREY_BMASK; yd--) /* Fill remainder of current block. */
{
dst = _grey_info.values
+ _GREY_MULUQ(_grey_info.width, yd & ~_GREY_BMASK)
@ -325,9 +327,10 @@ void grey_ub_scroll_down(int count)
int blen = _GREY_MULUQ(_grey_info.height - count, _grey_info.width);
dst -= blen;
_grey_rb->memmove(dst, start, blen);
_grey_info.rb->memmove(dst, start, blen);
}
_grey_rb->memset(start, blank, dst - start); /* Fill remainder at once. */
_grey_info.rb->memset(start, blank, dst - start);
/* Fill remainder at once. */
}
#endif /* !SIMULATOR */