88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/// @file VideoTest.ino
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/// @brief Demonstrates a simple video test using alternating black/red pixels
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/// @example VideoTest.ino
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#include <FastLED.h>
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#include "fl/bytestreammemory.h"
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#include "fx/2d/video.hpp"
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#include "fx/fx_engine.h"
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#include "fl/ptr.h"
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#include <iostream>
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using namespace fl;
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#define LED_PIN 2
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#define BRIGHTNESS 96
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#define LED_TYPE WS2811
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#define COLOR_ORDER GRB
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#define MATRIX_WIDTH 22
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#define MATRIX_HEIGHT 22
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#define NUM_LEDS (MATRIX_WIDTH * MATRIX_HEIGHT)
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CRGB leds[NUM_LEDS];
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const int BYTES_PER_FRAME = 3 * MATRIX_WIDTH * MATRIX_HEIGHT;
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const int NUM_FRAMES = 2;
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const uint32_t BUFFER_SIZE = BYTES_PER_FRAME * NUM_FRAMES;
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ByteStreamMemoryPtr memoryStream;
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VideoPtr videoFx;
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FxEngine fxEngine(NUM_LEDS);
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using namespace fl;
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void write_one_frame(ByteStreamMemoryPtr memoryStream) {
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//memoryStream->seek(0); // Reset to the beginning of the stream
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uint32_t total_bytes_written = 0;
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int toggle = (millis() / 500) % 2;
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for (uint32_t i = 0; i < NUM_LEDS; ++i) {
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CRGB color = (i % 2 == toggle) ? CRGB::Black : CRGB::Red;
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size_t bytes_written = memoryStream->write(color.raw, 3);
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if (bytes_written != 3) {
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std::cout << "Error writing to memory stream at LED " << i << std::endl;
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}
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total_bytes_written += bytes_written;
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}
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std::cout << "Total bytes written: " << total_bytes_written << " / " << BUFFER_SIZE << std::endl;
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}
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void setup() {
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delay(1000); // sanity delay
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FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS)
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.setCorrection(TypicalLEDStrip);
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FastLED.setBrightness(BRIGHTNESS);
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// Create and fill the ByteStreamMemory with test data
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memoryStream = Ptr::New<ByteStreamMemory>(BUFFER_SIZE);
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write_one_frame(memoryStream); // Write initial frame data
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// Create and initialize Video fx object
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XYMap xymap(MATRIX_WIDTH, MATRIX_HEIGHT);
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videoFx = Fx::make<VideoPtr>(xymap);
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videoFx->beginStream(memoryStream);
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// Add the video effect to the FxEngine
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fxEngine.addFx(videoFx);
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std::cout << "Setup complete. Starting main loop." << std::endl;
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}
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void loop() {
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// Reset the memory stream position before reading
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//memoryStream->seek(0);
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write_one_frame(memoryStream); // Write next frame data
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// Draw the frame
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fxEngine.draw(millis(), leds);
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// Debug output
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//std::cout << "First LED: R=" << (int)leds[0].r << " G=" << (int)leds[0].g << " B=" << (int)leds[0].b << std::endl;
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//std::cout << "Last LED: R=" << (int)leds[NUM_LEDS-1].r << " G=" << (int)leds[NUM_LEDS-1].g << " B=" << (int)leds[NUM_LEDS-1].b << std::endl;
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// Show the LEDs
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FastLED.show();
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delay(100); // Adjust this delay to control frame rate
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}
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