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Store bg and fg colors in a single array

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This commit is contained in:
Kovid Goyal 2016-10-17 14:18:15 +05:30
parent 44e8238eaf
commit ac5a3bb6c7
1 changed files with 20 additions and 15 deletions
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35
kitty/data_types.py
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@ -9,12 +9,14 @@ from itertools import repeat
from PyQt5.QtGui import QColor
code = 'I' if array.array('I').itemsize >= 4 else 'L'
lcode = 'L' if array.array('L').itemsize >= 8 else 'Q'
def get_zeroes(sz: int) -> Tuple[array.array]:
if get_zeroes.current_size != sz:
get_zeroes.current_size = sz
get_zeroes.ans = (
array.array(lcode, repeat(0, sz)),
array.array(code, repeat(0, sz)),
array.array(code, repeat(32, sz)),
)
@ -68,24 +70,24 @@ BOLD_MASK = 1 << BOLD_SHIFT
ITALIC_MASK = 1 << ITALIC_SHIFT
REVERSE_MASK = 1 << REVERSE_SHIFT
STRIKE_MASK = 1 << STRIKE_SHIFT
COL_MASK = 0xFFFFFFFF
COL_SHIFT = 32
class Line:
__slots__ = 'char fg bg decoration_fg continued'.split()
__slots__ = 'char color decoration_fg continued'.split()
def __init__(self, sz: int, other=None):
if other is None:
z4, spaces = get_zeroes(sz)
z8, z4, spaces = get_zeroes(sz)
self.char = spaces[:]
self.fg = z4[:]
self.bg = z4[:]
self.color = z8[:]
self.decoration_fg = z4[:]
self.continued = False
else:
self.char = other.char[:]
self.fg = other.fg[:]
self.bg = other.bg[:]
self.color = other.color[:]
self.decoration_fg = other.decoration_fg[:]
self.continued = other.continued
@ -108,8 +110,7 @@ class Line:
def copy_char(self, src: int, to, dest: int) -> None:
to.char[dest] = self.char[src]
to.fg[dest] = self.fg[src]
to.bg[dest] = self.bg[src]
to.color[dest] = self.color[src]
to.decoration_fg[dest] = self.decoration_fg[src]
def cursor_to_attrs(self, c: Cursor) -> int:
@ -118,11 +119,10 @@ class Line:
def apply_cursor(self, c: Cursor, at: int=0, num: int=1, clear_char=False, char=' ') -> None:
for i in range(at, at + num):
self.fg[i] = c.fg
self.bg[i] = c.bg
self.color[i] = ((c.bg & COL_MASK) << COL_SHIFT) | (c.fg & COL_MASK)
self.decoration_fg[i] = c.decoration_fg
sc = self.char[i]
ch = ord(char) if clear_char else sc & CHAR_MASK
ch = ord(char) if clear_char else sc
sattrs = sc >> ATTRS_SHIFT
w = 1 if clear_char else sattrs & WIDTH_MASK
attrs = w | self.cursor_to_attrs(c)
@ -130,7 +130,10 @@ class Line:
def cursor_from(self, x: int, ypos: int=0) -> Cursor:
c = Cursor(x, ypos)
c.fg, c.bg, c.decoration_fg = self.fg[x], self.bg[x], self.decoration_fg[x]
c.decoration_fg = self.decoration_fg[x]
col = self.color[x]
c.fg = col & COL_MASK
c.bg = col >> COL_SHIFT
attrs = self.char[x] >> ATTRS_SHIFT
c.decoration = (attrs >> DECORATION_SHIFT) & 0b11
c.bold = bool((attrs >> BOLD_SHIFT) & 0b1)
@ -143,16 +146,17 @@ class Line:
' Set the specified text in this line, with attributes taken from the cursor '
attrs = self.cursor_to_attrs(cursor) | 1
fg, bg, dfg = cursor.fg, cursor.bg, cursor.decoration_fg
col = (fg & COL_MASK) | ((bg & COL_MASK) << COL_SHIFT)
dx = cursor.x
for cpos in range(offset_in_text, offset_in_text + sz):
ch = ord(text[cpos]) & CHAR_MASK
self.char[dx] = ch | (attrs << ATTRS_SHIFT)
self.fg[dx], self.bg[dx], self.decoration_fg[dx] = fg, bg, dfg
self.color[dx], self.decoration_fg[dx] = col, dfg
dx += 1
def copy_slice(self, src, dest, num):
src, dest = slice(src, src + num), slice(dest, dest + num)
for a in (self.char, self.fg, self.bg, self.decoration_fg):
for a in (self.char, self.color, self.decoration_fg):
a[dest] = a[src]
def right_shift(self, at: int, num: int) -> None:
@ -184,7 +188,8 @@ class Line:
a = (c >> ATTRS_SHIFT) & ~WIDTH_MASK
else:
a = self.cursor_to_attrs(cursor)
self.fg[i], self.bg[i], self.decoration_fg[i] = cursor.fg, cursor.bg, cursor.decoration_fg
col = (cursor.fg & COL_MASK) | ((cursor.bg & COL_MASK) << COL_SHIFT)
self.color[i], self.decoration_fg[i] = col, cursor.decoration_fg
a |= width & WIDTH_MASK
self.char[i] = (a << ATTRS_SHIFT) | (ord(ch) & CHAR_MASK)