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HUB75: use last brightness on re-init

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avoids brightness flash when saving LED preferences
This commit is contained in:
Frank
2024-11-15 22:33:29 +01:00
parent d6dedd025d
commit 06fc1eb5b8
3 changed files with 20 additions and 2 deletions
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5
wled00/bus_manager.cpp
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@@ -528,6 +528,7 @@ VirtualMatrixPanel* BusHub75Matrix::activeFourScanPanel = nullptr;
HUB75_I2S_CFG BusHub75Matrix::activeMXconfig = HUB75_I2S_CFG();
uint8_t BusHub75Matrix::activeType = 0;
uint8_t BusHub75Matrix::instanceCount = 0;
uint8_t BusHub75Matrix::last_bri = 0;
// --------------------------
@@ -899,7 +900,7 @@ BusHub75Matrix::BusHub75Matrix(BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWh
USER_PRINTLN("MatrixPanel_I2S_DMA created");
// let's adjust default brightness
//display->setBrightness8(25); // range is 0-255, 0 - 0%, 255 - 100% // [setBrightness()] Tried to set output brightness before begin()
_bri = 25;
_bri = (last_bri > 0) ? last_bri : 25; // try to restore persistent brightness value
delay(24); // experimental
DEBUG_PRINT(F("heap usage: ")); DEBUG_PRINTLN(int(lastHeap - ESP.getFreeHeap()));
@@ -917,6 +918,7 @@ BusHub75Matrix::BusHub75Matrix(BusConfig &bc) : Bus(bc.type, bc.start, bc.autoWh
USER_PRINT(F("heap usage: ")); USER_PRINTLN(int(lastHeap - ESP.getFreeHeap()));
delay(18); // experiment - give the driver a moment (~ one full frame @ 60hz) to settle
_valid = true;
display->setBrightness8(_bri); // range is 0-255, 0 - 0%, 255 - 100% // [setBrightness()] Tried to set output brightness before begin()
display->clearScreen(); // initially clear the screen buffer
USER_PRINTLN("MatrixPanel_I2S_DMA clear ok");
@@ -1057,6 +1059,7 @@ void BusHub75Matrix::setBrightness(uint8_t b, bool immediate) {
MatrixPanel_I2S_DMA* display = BusHub75Matrix::activeDisplay;
// if (_bri > 238) _bri=238; // not strictly needed. Enable this line if you see glitches at highest brightness.
if ((_bri > 253) && (activeMXconfig.latch_blanking < 2)) _bri=253; // prevent glitches at highest brightness.
last_bri = _bri;
if (display) display->setBrightness(_bri);
}