saymrwulf/xous-core
1
0
Fork 0
mirror of https://github.com/saymrwulf/xous-core.git synced 2026-11-08 04:56:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

emulation: memlcd: reduce dirty bit count to 2 bytes

Browse source 
Previously, the memlcd had 22 bytes of dirty bits following a line. This
was reduced to 2 bytes, but the logic checking the dirty bytes had not
been updated.

Reduce the dirty byte count to 2 bytes.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2022-01-26 12:48:04 +08:00
parent 11f726223b
commit 96d241acfd
1 changed files with 5 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
emulation/peripherals/memlcd.cs
View file

@ -121,19 +121,22 @@ namespace Antmicro.Renode.Peripherals.Video
protected override void Repaint()
{
var newbuf = new Byte[44 * Height];
for (int y = 0; y < Height; y++)
{
// We should redraw the line if:
// 1) The `updateDirty` bit is set and the current line is dirty, or
// 2) The `updateAll` bit is set.
bool shouldRedrawLine = updateAll;
foreach (int i in Enumerable.Range(41, 22))
foreach (int i in Enumerable.Range(41, 2))
{
if (shouldRedrawLine)
{
break;
}
// A line is considered "dirty" if any bit following the pixel data is
// nonzero. Because each line is 336 pixels wide (which yields 42 bytes
// of data per line), the remaining 2 bytes indicate whether the line
// is dirty or not.
if (updateDirty && (this.videoRam.data[y * 44 + i] != 0))
{
shouldRedrawLine = true;