ScStw/ESP32-HUB75-MatrixPanel-DMA
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fixed nullptr dereference in simpletestshapes

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This commit is contained in:
Michał Bazan 2024-09-19 04:00:05 -07:00
parent 7929b97850
commit 4b3404a361
1 changed files with 9 additions and 7 deletions

16
examples/1_SimpleTestShapes/1_SimpleTestShapes.ino
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@ -13,13 +13,7 @@
//MatrixPanel_I2S_DMA dma_display;
MatrixPanel_I2S_DMA *dma_display = nullptr;
uint16_t myBLACK = dma_display->color565(0, 0, 0);
uint16_t myWHITE = dma_display->color565(255, 255, 255);
uint16_t myRED = dma_display->color565(255, 0, 0);
uint16_t myGREEN = dma_display->color565(0, 255, 0);
uint16_t myBLUE = dma_display->color565(0, 0, 255);
uint16_t myBLACK, myWHITE, myRED, myGREEN, myBLUE;
// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
@ -109,6 +103,14 @@ void setup() {
dma_display->begin();
dma_display->setBrightness8(90); //0-255
dma_display->clearScreen();
myBLACK = dma_display->color565(0, 0, 0);
myWHITE = dma_display->color565(255, 255, 255);
myRED = dma_display->color565(255, 0, 0);
myGREEN = dma_display->color565(0, 255, 0);
myBLUE = dma_disdisplay->color565(0, 0, 255);
dma_display->fillScreen(myWHITE);
// fix the screen with green