mirrors/foot
1
0
Fork 0
mirror of https://codeberg.org/dnkl/foot.git synced 2026-02-15 22:05:24 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

render: add a 'clean' bit to each cell; only render cells that aren't clean

Browse source 
This patch takes a bit from the foreground color value in a
cell (todo: split up foreground/background into bitfields with a
separate field for 'foreground/background' has been set), and only
re-renders cells that aren't marked as clean.

Note: we use a 'clean' bit rather than a 'dirty' bit to make it easy
to erase cells - we can (keep doing) do that by simply memsetting a
cell range to 0.
This commit is contained in:
Daniel Eklöf 2019-07-30 18:03:03 +02:00
parent c531795b83
commit 85ef9df586
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
7 changed files with 52 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

11
render.c
View file

@ -174,8 +174,13 @@ arm_blink_timer(struct terminal *term)
static void
render_cell(struct terminal *term, struct buffer *buf, size_t buf_idx,
const struct cell *cell, int col, int row, bool has_cursor)
struct cell *cell, int col, int row, bool has_cursor)
{
if (cell->attrs.clean)
return;
cell->attrs.clean = 1;
cairo_t *cr = buf->cairo[buf_idx];
double width = term->cell_width;
double height = term->cell_height;
@ -185,10 +190,10 @@ render_cell(struct terminal *term, struct buffer *buf, size_t buf_idx,
bool block_cursor = has_cursor && term->cursor_style == CURSOR_BLOCK;
bool is_selected = coord_is_selected(term, col, row);
uint32_t _fg = cell->attrs.foreground >> 31
uint32_t _fg = cell->attrs.foreground >> 30
? cell->attrs.foreground
: !term->reverse ? term->colors.fg : term->colors.bg;
uint32_t _bg = cell->attrs.background >> 31
uint32_t _bg = cell->attrs.background >> 30
? cell->attrs.background
: !term->reverse ? term->colors.bg : term->colors.fg;