Raspberry Pi 4 B

[techgunk]

I'm trying to get this working on some Rpi 4 B to use at a gallery, is the Rpi 4 not supported?

[kr15h]

Not yet —- Krisjanis Rijnieks Creative coding. Projection mapping. Solutions https://rijnieks.com

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On 16. Jan 2020, at 17:41, techgunk ***@***.***> wrote:  I'm trying to get this working on some Rpi 4 B to use at a gallery, is the Rpi 4 not supported? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[eshkrab]

Hello!

Considering using this on a project and I'd love to use RPI4, happy to help with the porting effort if I can.

Would you mind briefly summarising what would be necessary for the port if you know? OF has been ported to RPI4 now, so is there a lot that needs to be done on top of that?

[magdesign]

@eshkrab
Why don't you test it and report what is not working.....

[eshkrab]

@magdesign I'm not at the stage of this project where it's appropriate to test solutions, especially when they're known to not be working.
I just asked the dev if they happen to know any of the big-picture problems since they said rpi4 is definitely not supported and I've helped the oF rpi4 porting efforts in the past, didn't mean for that to come off as lazy or to upset anyone.

[magdesign]

It takes a lot of time to test things, if someone can tell: I installed this, compiled this, that was working but stuck here, its much easier for a dev to fix the issue. That's how opensource works.

So why not installing OF on your RPI4, compile PiMapper and test if it works or what errors you get... the community will help.

[eshkrab]

Thank you for your input, I'll post if I end up using this and have issues I can't fix myself

[sxy2069]

It takes a lot of time to test things, if someone can tell: I installed this, compiled this, that was working but stuck here, its much easier for a dev to fix the issue. That's how opensource works.

So why not installing OF on your RPI4, compile PiMapper and test if it works or what errors you get... the community will help.

when I compile example_basic in ofxPimapper addon on Raspberry 4B, I get this error ,who can help me to solve this problem

[kr15h]

Hi! Seems like the same issues are there when I last tested. There are some problems with the new gl stuff. I believe a new window class has to be created. @jvcleave seems to be working in that. cheers —- Krisjanis Rijnieks Creative coding. Projection mapping. Solutions https://rijnieks.com

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On 7. May 2020, at 10:18, sxy2069 ***@***.***> wrote:  It takes a lot of time to test things, if someone can tell: I installed this, compiled this, that was working but stuck here, its much easier for a dev to fix the issue. That's how opensource works. So why not installing OF on your RPI4, compile PiMapper and test if it works or what errors you get... the community will help. when I compile example_basic in ofxPimapper addon on Raspberry 4B, I get this error ,who can help me to solve this problem — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.

[jvcleave]

unlikely to have texture mode support on the RPI4
jvcleave/ofxOMXPlayer#157

[mysticcircuits]

Hey so the odd thing is that I seem to be getting the exact same error on a Pi 3B+. Did a fresh install of the latest stable version of Noobs and open frameworks today to make sure everything was installed correctly and I got the same error. Any idea what I might have done wrong? I had no issue getting ofxOMXPlayer working in the past.

[jvcleave]

I don't have an Pi 3B+ to test but it looks like maybe eglCreateImageKHR has been moved in Buster

If that is the case, there was a new way I was using to access it on the RPI4 that may work. See this commit

jvcleave/ofxOMXPlayer@94178e6

the important parts are in this block

static PFNEGLCREATEIMAGEKHRPROC createImageProc = NULL;
EGLImageKHR createImage(EGLDisplay dpy, EGLContext ctx, EGLenum target,
                        EGLClientBuffer buffer, const EGLint *attrib_list)
{
    if (!createImageProc)
    {
        createImageProc = (PFNEGLCREATEIMAGEKHRPROC)eglGetProcAddress("eglCreateImageKHR");
    }
    
    return createImageProc(dpy, ctx, target, buffer, attrib_list);
}
static PFNEGLDESTROYIMAGEKHRPROC destroyImageProc = NULL;

EGLBoolean destroyImage(EGLDisplay dpy, EGLImageKHR image)
{
    if (!destroyImageProc)
    {
        destroyImageProc = (PFNEGLDESTROYIMAGEKHRPROC)eglGetProcAddress("eglDestroyImageKHR");
    }
    
    return destroyImageProc(dpy, image);
}

bool ofxOMXPlayerEngine::generateEGLImage()
{
    bool success = false;
    bool needsRegeneration = false;
    
    if (!texture.isAllocated())
    {
        needsRegeneration = true;
    }
    else
    {
        if (texture.getWidth() != videoWidth && texture.getHeight() != videoHeight)
        {
            needsRegeneration = true;
        }
    }
    
    if (!fbo.isAllocated())
    {
        needsRegeneration = true;
    }
    else
    {
        if (fbo.getWidth() != videoWidth && fbo.getHeight() != videoHeight)
        {
            needsRegeneration = true;
        }
    }
    
    if(!needsRegeneration)
    {
        //ofLogVerbose(__func__) << "NO CHANGES NEEDED - RETURNING EARLY";
        return true;
    }
    
    if (appEGLWindow == NULL)
    {
        appEGLWindow = (ofAppEGLWindow *) ofGetWindowPtr();
    }
    
    if (appEGLWindow == NULL)
    {
        ofLogError(__func__) << "appEGLWindow is NULL - RETURNING";
        return false;
    }
    if (display == NULL)
    {
        display = appEGLWindow->getEglDisplay();
    }
    if (context == NULL)
    {
        context = appEGLWindow->getEglContext();
    }
    
    if (display == NULL)
    {
        ofLogError(__func__) << "display is NULL - RETURNING";
        return false;
    }
    if (context == NULL)
    {
        ofLogError(__func__) << "context is NULL - RETURNING";
        return false;
    }
    
    if (needsRegeneration)
    {
        
        fbo.allocate(videoWidth, videoHeight, GL_RGBA);
        texture.allocate(videoWidth, videoHeight, GL_RGBA);
        texture.setTextureWrap(GL_REPEAT, GL_REPEAT);
        textureID = texture.getTextureData().textureID;
    }
    
    ofLog() << "textureID: " << textureID;
    ofLog() << "tex.isAllocated(): " << texture.isAllocated();
    ofLog() << "videoWidth: " << videoWidth;
    ofLog() << "videoHeight: " << videoHeight;
    ofLog() << "pixels: " << videoHeight;
    
    // setup first texture
    int dataSize = videoWidth * videoHeight * 4;
    
    if (pixels && needsRegeneration)
    {
        delete[] pixels;
        pixels = NULL;
    }
    
    if (pixels == NULL)
    {
        pixels = new unsigned char[dataSize];
    }
    ofLog() << "dataSize: " << dataSize;
    
    //memset(pixels, 0xff, dataSize);  // white texture, opaque
    
    glBindTexture(GL_TEXTURE_2D, textureID);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, videoWidth, videoHeight, 0,
                 GL_RGBA, GL_UNSIGNED_BYTE, pixels);
    
    
    if (eglImage && needsRegeneration)
    {
        destroyEGLImage();
    }
    
    // Create EGL Image
    eglImage = createImage(display, context, EGL_GL_TEXTURE_2D_KHR, (EGLClientBuffer)textureID, NULL);

    if (eglImage == EGL_NO_IMAGE_KHR)
    {
        ofLog()    << "Create EGLImage FAIL <---------------- :(";
        
    }
    else
    {
        success = true;
        ofLog()  << "Create EGLImage PASS <---------------- :)";
    }
    return success;
    
}

void ofxOMXPlayerEngine::destroyEGLImage()
{
    
    
    if (eglImage)
    {
        if (appEGLWindow == NULL)
        {
            appEGLWindow = (ofAppEGLWindow *) ofGetWindowPtr();
        }
        
        if (display == NULL)
        {
            display = appEGLWindow->getEglDisplay();
        }
        
        if (!destroyImage(display, eglImage))
        {
            ofLog() << __func__ << " FAIL <---------------- :(";
        }else
        {
            ofLog() << __func__ << " PASS <---------------- :)";
        }
        eglImage = NULL;
    }
    
}

[pietrondo]

news about pi 4?
thx

[kr15h]

Nope. I have the feeling that one has to make a new Pi Mapper for Pi 4 actually.

[Brumeux]

Anything new @kr15h ? Thanks a lot