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kobalicek avatar kobalicek commented on June 21, 2024 1

Just just need to use:

block.pitch      = imgData0.stride;

in this case - would that solve the problem?

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kobalicek avatar kobalicek commented on June 21, 2024

I think you are not using imgData0.stride - the engine may align the stride to make scanlines aligned when it comes to larger images and this is especially important for multi-threaded renderers where misaligned pixels could cause a huge performance penalty when two threads share a cacheline in the target image during the rendering.

Assuming that stride is size.w * 4, for example, is a wrong assumption in this case.

Let me know if that was the problem.

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nico-robert avatar nico-robert commented on June 21, 2024

Thanks @kobalicek for your fast response , you are right I'm not using imgData0.stride,but I don't think I can use (if I understood your answer) according to my structure.
Below my code using getData method:

    block.pixelPtr   = static_cast<unsigned char*>(imgData0.pixelData);
    block.width      = imgData0.size.w;
    block.height     = imgData0.size.h;
    block.pitch      = imgData0.size.w * 4;
    block.pixelSize  = 4;
    block.offset[0]  = 2;
    block.offset[1]  = 1;
    block.offset[2]  = 0;
    block.offset[3]  = 3;

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nico-robert avatar nico-robert commented on June 21, 2024

Yes it works thank you.

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