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HUB75 hack

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HUB75 is very memory hungry - this hack deletes the mapping table when its not needed --> frees 8Kb with a 64x64 panel.
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Frank
2024-08-07 18:31:06 +02:00
parent fb2402fb97
commit 6e415dfbbe
1 changed files with 18 additions and 0 deletions
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18
wled00/FX_2Dfcn.cpp
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@@ -171,6 +171,24 @@ void WS2812FX::setUpMatrix() {
//WLEDMM: no resetSegments here, only do it in set.cpp/handleSettingsSet - as we want t0 maintain the segment settings after setup has changed
}
}
#ifdef WLED_ENABLE_HUB75MATRIX
// softhack007 hack: delete mapping table in case it only contains "identity"
if (customMappingTable != nullptr && customMappingTableSize > 0) {
bool isIdentity = true;
for (size_t i = 0; (i< customMappingSize) && isIdentity; i++) { //WLEDMM use customMappingTableSize
if (customMappingTable[i] != (uint16_t)i ) isIdentity = false;
}
if (isIdentity) {
free(customMappingTable); customMappingTable = nullptr;
USER_PRINTF("!setupmatrix: customMappingTable is not needed. Dropping %d bytes.\n", customMappingTableSize * sizeof(uint16_t));
customMappingTableSize = 0;
customMappingSize = 0;
loadedLedmap = 0; //WLEDMM
}
}
#endif
#else
isMatrix = false; // no matter what config says
#endif