kopia lustrzana https://github.com/pimoroni/pimoroni-pico
118 wiersze
3.5 KiB
C++
118 wiersze
3.5 KiB
C++
#include <math.h>
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#include "pico/stdlib.h"
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#include "libraries/pico_graphics/pico_graphics.hpp"
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#include "drivers/hub75/hub75.hpp"
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using namespace pimoroni;
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// Display size in pixels
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// Should be either 64x64 or 32x32 but perhaps 64x32 an other sizes will work.
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// Note: this example uses only 5 address lines so it's limited to 32*2 pixels.
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//If the display looks streaky or corrupted then uncomment one of the other initalisers
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//Works with our 32x32 panels https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=35962488650 https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=19321740999
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Hub75 hub75(32, 32, nullptr, PANEL_GENERIC, false);
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//or using 2 of these panels
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//Hub75 hub75(64, 32, nullptr, PANEL_GENERIC, false);
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//and 64x32 panel https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=42312764298
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//Hub75 hub75(64, 32, nullptr, PANEL_GENERIC, false);
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//or using 2 of these panels
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//Hub75 hub75(128, 32, nullptr, PANEL_GENERIC, false);
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//Works with our 64x64 panel https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=3029531983882
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//Hub75 hub75(64, 64, nullptr, PANEL_GENERIC, false);
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//or using 2 of these panels
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//Hub75 hub75(128, 64, nullptr, PANEL_GENERIC, false);
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PicoGraphics_PenRGB888 graphics(hub75.width, hub75.height, nullptr);
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// HSV Conversion expects float inputs in the range of 0.00-1.00 for each channel
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// Outputs are rgb in the range 0-255 for each channel
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void from_hsv(float h, float s, float v, uint8_t &r, uint8_t &g, uint8_t &b) {
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float i = floor(h * 6.0f);
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float f = h * 6.0f - i;
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v *= 255.0f;
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uint8_t p = v * (1.0f - s);
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uint8_t q = v * (1.0f - f * s);
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uint8_t t = v * (1.0f - (1.0f - f) * s);
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switch (int(i) % 6) {
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case 0: r = v; g = t; b = p; break;
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case 1: r = q; g = v; b = p; break;
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case 2: r = p; g = v; b = t; break;
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case 3: r = p; g = q; b = v; break;
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case 4: r = t; g = p; b = v; break;
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case 5: r = v; g = p; b = q; break;
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}
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}
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void text(std::string t, Point p, float s = 1.0f, float a = 1.0f) {
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int w = graphics.measure_text(t, s);
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p.x += (hub75.width / 2) - (w / 2);
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p.y += (hub75.height / 2);
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graphics.text(t, Point(p.x, p.y), -1, s, a);
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graphics.text(t, Point(p.x + 1, p.y), -1, s, a);
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graphics.text(t, Point(p.x + 1, p.y + 1), -1, s, a);
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graphics.text(t, Point(p.x, p.y + 1), -1, s, a);
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}
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// Interrupt callback required function
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void __isr dma_complete() {
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hub75.dma_complete();
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}
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int main() {
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//Start hub75 driver
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hub75.start(dma_complete);
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uint8_t hue_map[hub75.width][3];
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for(int i = 0; i < (int)hub75.width; i++) {
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from_hsv(i / (float)hub75.width, 1.0f, 1.0f, hue_map[i][0], hue_map[i][1], hue_map[i][2]);
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}
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graphics.set_font("sans");
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uint i = 0;
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while(true) {
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i++;
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graphics.set_pen(0, 0, 0);
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graphics.clear();
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float s = 0.8f;//0.65f + (sin(i / 25.0f) * 0.15f);
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float a = 2.0f;// (sin(i / 25.0f) * 100.0f);
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float x = (sin((i) / 50.0f) * 190.0f);
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float y = (cos((i) / 30.0f) * 10.0f - 10.0f);
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graphics.set_pen(255, 255, 255);
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text("Interstate 75 HUB75 display driver", Point(x, y), s, a);
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uint8_t *p = (uint8_t *)graphics.frame_buffer;
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for(size_t i = 0; i < hub75.width * hub75.height; i++) {
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int x = i % hub75.width;
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int y = i / hub75.width;
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uint r = *p++;
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uint g = *p++;
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uint b = *p++;
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p++;
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if(r > 0) {
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r = hue_map[x][0];
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g = hue_map[x][1];
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b = hue_map[x][2];
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}
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graphics.set_pen(r, g, b);
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graphics.pixel(Point(x, y));
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}
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hub75.update(&graphics);
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}
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printf("done\n");
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return 0;
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}
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