Hello,
I'm using this command to decode PNG bitmap from a MCU (PIC32) into a BT812.
I had some of them that failed the decoding.
With a PNG editor, I saw, for example, that embedded ICC profiles are refused by the BT812, which is fair. As soon as I removed this chunk, the bitmap was decoded normally.
All my bitmaps are ARGB8 ones and expected to be decoded as ARGB4. And, of course, all the transfers are always 4 bytes aligned.
Now, i have a small PNG image, with nothing special that is not decoded by the BT812 and I don't know why. I tried to read/write with some drawing utilities, but it's still failing.
Here I join two bitmaps. The "One.png" fails but the other one "Two.png" is read correctly. they have the same size and same internal structure.
What are the exact requirements for PNG decoding and what is wrong with this one ?
Thanks in advance,
J.Prévost
I'm using this command to decode PNG bitmap from a MCU (PIC32) into a BT812.
I had some of them that failed the decoding.
With a PNG editor, I saw, for example, that embedded ICC profiles are refused by the BT812, which is fair. As soon as I removed this chunk, the bitmap was decoded normally.
All my bitmaps are ARGB8 ones and expected to be decoded as ARGB4. And, of course, all the transfers are always 4 bytes aligned.
Now, i have a small PNG image, with nothing special that is not decoded by the BT812 and I don't know why. I tried to read/write with some drawing utilities, but it's still failing.
Here I join two bitmaps. The "One.png" fails but the other one "Two.png" is read correctly. they have the same size and same internal structure.
What are the exact requirements for PNG decoding and what is wrong with this one ?
Thanks in advance,
J.Prévost