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FIX screen corruption #213

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This commit is contained in:
Joaquim
2021-03-18 19:38:19 +00:00
parent ada9425357
commit dba7e47ac0
4 changed files with 40 additions and 80 deletions
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91
src/displayapp/LittleVgl.cpp
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@@ -67,65 +67,47 @@ void LittleVgl::SetFullRefresh(FullRefreshDirections direction) {
}
void LittleVgl::FlushDisplay(const lv_area_t *area, lv_color_t *color_p) {
uint16_t y1, y2, width, height = 0;
ulTaskNotifyTake(pdTRUE, 500);
// Notification is still needed (even if there is a mutex on SPI) because of the DataCommand pin
// which cannot be set/clear during a transfer.
if( (scrollDirection == LittleVgl::FullRefreshDirections::Down) && (area->y2 == visibleNbLines - 1)) {
writeOffset = ((writeOffset + totalNbLines) - visibleNbLines) % totalNbLines;
} else if( (scrollDirection == FullRefreshDirections::Up) && (area->y1 == 0) ) {
writeOffset = (writeOffset + visibleNbLines) % totalNbLines;
}
// TODO refactore and remove duplicated code
y1 = (area->y1 + writeOffset) % totalNbLines;
y2 = (area->y2 + writeOffset) % totalNbLines;
width = (area->x2 - area->x1) + 1;
height = (area->y2 - area->y1) + 1;
uint16_t x, y, y1, y2, width, height = 0;
if(scrollDirection == LittleVgl::FullRefreshDirections::Down) {
if(area->y2 == visibleNbLines-1) {
writeOffset = ((writeOffset + totalNbLines) - visibleNbLines) % totalNbLines;
}
x = area->x1;
width = (area->x2 - area->x1) + 1;
y1 = (area->y1 + writeOffset) % totalNbLines;
y2 = (area->y2 + writeOffset) % totalNbLines;
y = y1;
height = (y2 - y1) + 1;
if(area->y2 < visibleNbLines - 1) {
uint16_t toScroll = 0;
if(area->y1 == 0) {
toScroll = height*2;
toScroll = height * 2;
scrollDirection = FullRefreshDirections::None;
lv_disp_set_direction(lv_disp_get_default(), 0);
} else {
toScroll = height;
}
if(scrollOffset >= toScroll)
scrollOffset -= toScroll;
else {
toScroll -= scrollOffset;
scrollOffset = (totalNbLines) - toScroll;
scrollOffset = (totalNbLines) - toScroll;
}
lcd.VerticalScrollDefinition(0, 320, 0);
lcd.VerticalScrollStartAddress(scrollOffset);
}
lcd.BeginDrawBuffer(x, y, width, height);
lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(color_p), width * height*2) ;
} else if(scrollDirection == FullRefreshDirections::Up) {
if(area->y1 == 0) {
writeOffset = (writeOffset + visibleNbLines) % totalNbLines;
}
x = area->x1;
width = (area->x2 - area->x1) + 1;
y1 = (area->y1 + writeOffset) % totalNbLines;
y2 = (area->y2 + writeOffset) % totalNbLines;
y = y1;
height = (y2 - y1) + 1;
if(area->y1 > 0) {
if(area->y2 == visibleNbLines -1) {
if(area->y2 == visibleNbLines - 1) {
scrollOffset += (height * 2);
scrollDirection = FullRefreshDirections::None;
lv_disp_set_direction(lv_disp_get_default(), 0);
@@ -133,36 +115,27 @@ void LittleVgl::FlushDisplay(const lv_area_t *area, lv_color_t *color_p) {
scrollOffset += height;
}
scrollOffset = scrollOffset % totalNbLines;
lcd.VerticalScrollDefinition(0, 320, 0);
lcd.VerticalScrollStartAddress(scrollOffset);
}
lcd.BeginDrawBuffer(x, y, width, height);
lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(color_p), width * height*2);
} else {
x = area->x1;
width = (area->x2 - area->x1) + 1;
y1 = (area->y1 + writeOffset) % totalNbLines;
y2 = (area->y2 + writeOffset) % totalNbLines;
y = y1;
height = (y2 - y1) + 1;
if (y2 < y1) {
height = (totalNbLines - 1) - y1;
lcd.BeginDrawBuffer(x, y1, width, height);
lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(color_p), width * height * 2);
ulTaskNotifyTake(pdTRUE, 500);
height = y2;
lcd.BeginDrawBuffer(x, 0, width, height);
lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(color_p), width * height * 2);
} else {
lcd.BeginDrawBuffer(x, y, width, height);
lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(color_p), width * height * 2);
}
}
/* IMPORTANT!!!
* Inform the graphics library that you are ready with the flushing*/
if (y2 < y1) {
height = totalNbLines - y1;
if ( height > 0 ) {
lcd.DrawBuffer(area->x1, y1, width, height, reinterpret_cast<const uint8_t *>(color_p), width * height * 2);
ulTaskNotifyTake(pdTRUE, 320);
}
uint16_t pixOffset = width * height;
height = y2 + 1;
lcd.DrawBuffer(area->x1, 0, width, height, reinterpret_cast<const uint8_t *>(color_p + pixOffset), width * height * 2);
} else {
lcd.DrawBuffer(area->x1, y1, width, height, reinterpret_cast<const uint8_t *>(color_p), width * height * 2);
}
// IMPORTANT!!!
// Inform the graphics library that you are ready with the flushing
lv_disp_flush_ready(&disp_drv);
}