ScStw/ESP32-HUB75-MatrixPanel-DMA
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge pull request from DevxMike/master

Browse source 
fixed nullptr dereference
This commit is contained in:
mrcodetastic 2024-09-19 22:24:16 +01:00 • committed by GitHub
commit bba1a47f01
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 22 additions and 13 deletions
examples
1_SimpleTestShapes
1_SimpleTestShapes.ino
3_DoubleBuffer
3_DoubleBuffer.ino

16
examples/1_SimpleTestShapes/1_SimpleTestShapes.ino
View file

@ -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_display->color565(0, 0, 255);
dma_display->fillScreen(myWHITE);
// fix the screen with green

19
examples/3_DoubleBuffer/3_DoubleBuffer.ino
View file

@ -5,16 +5,15 @@
// Double buffering is not always required in reality.
#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
#include <array>
MatrixPanel_I2S_DMA *display = nullptr;
uint16_t myDARK = display->color565(64, 64, 64);
uint16_t myWHITE = display->color565(192, 192, 192);
uint16_t myRED = display->color565(255, 0, 0);
uint16_t myGREEN = display->color565(0, 255, 0);
uint16_t myBLUE = display->color565(0, 0, 255);
constexpr std::size_t color_num = 5;
using colour_arr_t = std::array<uint16_t, color_num>;
uint16_t colours[5] = { myDARK, myWHITE, myRED, myGREEN, myBLUE };
uint16_t myDARK, myWHITE, myRED, myGREEN, myBLUE;
colour_arr_t colours;
struct Square
{
@ -45,6 +44,14 @@ void setup()
display = new MatrixPanel_I2S_DMA(mxconfig);
display->begin(); // setup display with pins as pre-defined in the library
myDARK = display->color565(64, 64, 64);
myWHITE = display->color565(192, 192, 192);
myRED = display->color565(255, 0, 0);
myGREEN = display->color565(0, 255, 0);
myBLUE = display->color565(0, 0, 255);
colours = {{ myDARK, myWHITE, myRED, myGREEN, myBLUE }};
// Create some random squares
for (int i = 0; i < numSquares; i++)
{