96 lines
3.8 KiB
C++
96 lines
3.8 KiB
C++
/*
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* This example shows how to display bitmaps that are exported from GIMP and
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* compiled into the sketch and stored in the Teensy's Flash memory
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* See more details here:
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* http://docs.pixelmatix.com/SmartMatrix/library.html#smartmatrix-library-how-to-use-the-library-drawing-raw-bitmaps
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*
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* This example uses only the SmartMatrix Background layer
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*/
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//#include <SmartLEDShieldV4.h> // uncomment this line for SmartLED Shield V4 (needs to be before #include <SmartMatrix3.h>)
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#include <SmartMatrix3.h>
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#include "gimpbitmap.h"
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// pixelmatix.c is a bitmap exported from GIMP without modification
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#include "pixelmatix.c"
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// colorwheel.c has been modified to use the gimp32x32bitmap struct
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#include "colorwheel.c"
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// chrome16 is a 16x16 pixel bitmap, exported from GIMP without modification
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#include "chrome16.c"
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#define COLOR_DEPTH 24 // known working: 24, 48 - If the sketch uses type `rgb24` directly, COLOR_DEPTH must be 24
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const uint8_t kMatrixWidth = 32; // known working: 16, 32, 48, 64
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const uint8_t kMatrixHeight = 32; // known working: 32, 64, 96, 128
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const uint8_t kRefreshDepth = 36; // known working: 24, 36, 48
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const uint8_t kDmaBufferRows = 4; // known working: 2-4, use 2 to save memory, more to keep from dropping frames and automatically lowering refresh rate
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const uint8_t kPanelType = SMARTMATRIX_HUB75_32ROW_MOD16SCAN; // use SMARTMATRIX_HUB75_16ROW_MOD8SCAN for common 16x32 panels
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const uint8_t kMatrixOptions = (SMARTMATRIX_OPTIONS_NONE); // see http://docs.pixelmatix.com/SmartMatrix for options
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const uint8_t kBackgroundLayerOptions = (SM_BACKGROUND_OPTIONS_NONE);
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SMARTMATRIX_ALLOCATE_BUFFERS(matrix, kMatrixWidth, kMatrixHeight, kRefreshDepth, kDmaBufferRows, kPanelType, kMatrixOptions);
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SMARTMATRIX_ALLOCATE_BACKGROUND_LAYER(backgroundLayer, kMatrixWidth, kMatrixHeight, COLOR_DEPTH, kBackgroundLayerOptions);
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int led = 13;
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void drawBitmap(int16_t x, int16_t y, const gimp32x32bitmap* bitmap) {
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for(unsigned int i=0; i < bitmap->height; i++) {
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for(unsigned int j=0; j < bitmap->width; j++) {
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SM_RGB pixel = { bitmap->pixel_data[(i*bitmap->width + j)*3 + 0],
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bitmap->pixel_data[(i*bitmap->width + j)*3 + 1],
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bitmap->pixel_data[(i*bitmap->width + j)*3 + 2] };
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backgroundLayer.drawPixel(x + j, y + i, pixel);
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}
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}
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}
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void setup() {
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matrix.addLayer(&backgroundLayer);
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matrix.begin();
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matrix.setBrightness(128);
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pinMode(led, OUTPUT);
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}
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void loop() {
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int x, y;
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backgroundLayer.fillScreen({0,0,0});
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x = (kMatrixWidth / 2) - (pixelmatixlogo.width/2);
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y = (kMatrixHeight / 2) - (pixelmatixlogo.height/2);
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// to use drawBitmap, must cast the pointer to pixelmatixlogo as (const gimp32x32bitmap*)
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drawBitmap(x,y,(const gimp32x32bitmap*)&pixelmatixlogo);
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backgroundLayer.swapBuffers();
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digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
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delay(1000);
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digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
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delay(1000);
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backgroundLayer.fillScreen({0,0,0});
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x = (kMatrixWidth / 2) - (colorwheel.width/2);
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y = (kMatrixHeight / 2) - (colorwheel.height/2);
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// can pass &colorwheel in directly as the bitmap source is already gimp32x32bitmap
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drawBitmap(x,y,&colorwheel);
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backgroundLayer.swapBuffers();
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digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
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delay(1000);
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digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
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delay(1000);
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backgroundLayer.fillScreen({0,0,0});
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x = (kMatrixWidth / 2) - (chrome16.width/2);
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y = (kMatrixHeight / 2) - (chrome16.height/2);
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drawBitmap(x, y, (const gimp32x32bitmap*)&chrome16);
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backgroundLayer.swapBuffers();
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digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
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delay(1000);
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digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
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delay(1000);
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}
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