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Setup is really easy, after first boot and WiFi/LEDs setup:
go to wled.local/edit and upload a couple image to WLed's filesystem.
Only PNG is supported right now, further support for GIF is planned.
The image should be as wide as the 1D segment you want to apply to.
When done, go to the Effect page on the UI, select "POV Image" effect.
There should be a new selector, near the Effect Speed slider.
You can use that selector to set the image for display on POV.
You could also update the image with a post to the JSON-API like this:
curl -X POST http://[wled]/json/state -d '{"seg":{"id":0,"fx":114,"f":"/axel.png"}}'
The segment should move at around 120RPM (that's 2revolutions per seconds) for an image to showup.
More informations and pictures here : https://lumina.toys- Loading branch information
Arthur Suzuki
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Dec 1, 2023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| #pragma once | ||
| #include "wled.h" | ||
| #include <PNGdec.h> | ||
| #include <AnimatedGIF.h> | ||
| #define BRI 3 | ||
| #define FX_MODE_POV_IMAGE 255 | ||
| static const char _data_FX_MODE_POV_IMAGE[] PROGMEM = "POV Image@!;;;1"; | ||
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| AnimatedGIF gif; | ||
| PNG png; | ||
| File f; | ||
|
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| typedef struct file_tag | ||
| { | ||
| int32_t iPos; // current file position | ||
| int32_t iSize; // file size | ||
| uint8_t *pData; // memory file pointer | ||
| void * fHandle; // class pointer to File/SdFat or whatever you want | ||
| } IMGFILE; | ||
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| void * openFile(const char *filename, int32_t *size) { | ||
| f = WLED_FS.open(filename); | ||
| *size = f.size(); | ||
| return &f; | ||
| } | ||
|
|
||
| void closeFile(void *handle) { | ||
| if (f) f.close(); | ||
| } | ||
|
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||
| int32_t readFile(IMGFILE *pFile, uint8_t *pBuf, int32_t iLen) | ||
| { | ||
| int32_t iBytesRead; | ||
| iBytesRead = iLen; | ||
| File *f = static_cast<File *>(pFile->fHandle); | ||
| // Note: If you read a file all the way to the last byte, seek() stops working | ||
| if ((pFile->iSize - pFile->iPos) < iLen) | ||
| iBytesRead = pFile->iSize - pFile->iPos - 1; // <-- ugly work-around | ||
| if (iBytesRead <= 0) | ||
| return 0; | ||
| iBytesRead = (int32_t)f->read(pBuf, iBytesRead); | ||
| pFile->iPos = f->position(); | ||
| return iBytesRead; | ||
| } | ||
|
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| int32_t readPNG(PNGFILE *pFile, uint8_t *pBuf, int32_t iLen) | ||
| { return readFile((IMGFILE*) pFile, pBuf, iLen); } | ||
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| int32_t readGIF(GIFFILE *pFile, uint8_t *pBuf, int32_t iLen) | ||
| { return readFile((IMGFILE*) pFile, pBuf, iLen); } | ||
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| int32_t seekFile(IMGFILE *pFile, int32_t iPosition) | ||
| { | ||
| int i = micros(); | ||
| File *f = static_cast<File *>(pFile->fHandle); | ||
| f->seek(iPosition); | ||
| pFile->iPos = (int32_t)f->position(); | ||
| i = micros() - i; | ||
| return pFile->iPos; | ||
| } | ||
|
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||
| int32_t seekPNG(PNGFILE *pFile, int32_t iPos) | ||
| { return seekFile((IMGFILE*) pFile, iPos); } | ||
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| int32_t seekGIF(GIFFILE *pFile, int32_t iPos) | ||
| { return seekFile((IMGFILE*) pFile, iPos); } | ||
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| void pngDraw(PNGDRAW *pDraw) { | ||
| uint16_t usPixels[SEGLEN]; | ||
| png.getLineAsRGB565(pDraw, usPixels, PNG_RGB565_LITTLE_ENDIAN, 0xffffffff); | ||
| for(int x=0; x < SEGLEN; x++) { | ||
| uint16_t color = usPixels[x]; | ||
| byte r = ((color >> 11) & 0x1F); | ||
| byte g = ((color >> 5) & 0x3F); | ||
| byte b = (color & 0x1F); | ||
| SEGMENT.setPixelColor(x, RGBW32(r,g,b,0)); | ||
| } | ||
| busses.show(); | ||
| } | ||
|
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| void gifDraw(GIFDRAW *pDraw) { | ||
| uint8_t r, g, b, *s, *p, *pPal = (uint8_t *)pDraw->pPalette; | ||
| int x, y = pDraw->iY + pDraw->y; | ||
|
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| s = pDraw->pPixels; | ||
| if (pDraw->ucDisposalMethod == 2) { | ||
| p = &pPal[pDraw->ucBackground * 3]; | ||
| r = p[0]; g = p[1]; b = p[2]; | ||
| for (x=0; x<pDraw->iWidth; x++) | ||
| { | ||
| if (s[x] == pDraw->ucTransparent) { | ||
| SEGMENT.setPixelColor(x, RGBW32(r, g, b, 0)); | ||
| } | ||
| } | ||
| pDraw->ucHasTransparency = 0; | ||
| } | ||
|
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| if (pDraw->ucHasTransparency) { | ||
| const uint8_t ucTransparent = pDraw->ucTransparent; | ||
| for (x=0; x<pDraw->iWidth; x++) { | ||
| if (s[x] != ucTransparent) { | ||
| p = &pPal[s[x] * 3]; | ||
| SEGMENT.setPixelColor(x, RGBW32(p[0]>>BRI, p[1]>>BRI, p[2]>>BRI, 0)); | ||
| } | ||
| } | ||
| } | ||
|
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| else // no transparency, just copy them all | ||
| { | ||
| for (x=0; x<pDraw->iWidth; x++) | ||
| { | ||
| p = &pPal[s[x] * 3]; | ||
| SEGMENT.setPixelColor(x, RGBW32(p[0], p[1], p[2], 0)); | ||
| } | ||
| } | ||
| busses.show(); | ||
| } | ||
|
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| void pov_image() { | ||
| const char * filepath = SEGMENT.name; | ||
| int rc = png.open(filepath, openFile, closeFile, readPNG, seekPNG, pngDraw); | ||
| if (rc == PNG_SUCCESS) { | ||
| if (png.getWidth() != SEGLEN) return; | ||
| rc = png.decode(NULL, 0); | ||
| png.close(); | ||
| return; | ||
| } | ||
|
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| gif.begin(GIF_PALETTE_RGB888); | ||
| rc = gif.open(filepath, openFile, closeFile, readGIF, seekGIF, gifDraw); | ||
| if (rc) { | ||
| if (gif.getCanvasWidth() != SEGLEN) return; | ||
| while (gif.playFrame(true, NULL)) {} | ||
| gif.close(); | ||
| } | ||
| } | ||
|
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| uint16_t mode_pov_image(void) { | ||
| pov_image(); | ||
| return FRAMETIME; | ||
| } | ||
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| class PovDisplayUsermod : public Usermod | ||
| { | ||
| protected: | ||
| bool enabled = false; //WLEDMM | ||
| bool initDone = false; //WLEDMM | ||
| unsigned long lastTime = 0; //WLEDMM | ||
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| public: | ||
| void setup() { | ||
| strip.addEffect(FX_MODE_POV_IMAGE, &mode_pov_image, _data_FX_MODE_POV_IMAGE); | ||
| initDone=true; | ||
| } | ||
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| void loop() { | ||
| if (!enabled || strip.isUpdating()) return; | ||
| if (millis() - lastTime > 1000) { | ||
| lastTime = millis(); | ||
| } | ||
| } | ||
|
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||
| void connected() {} | ||
| }; |
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