GL_INVALID_OPERATION in glReadPixels(no readbuffer)

[cipri]

I'm using hrev43674 (with Mesa 7.8.2) and compiled my chess game to see how it runs on it. Like expected the 3D models were not drawn correctly, and i get the following messages:

Mesa: User error: GL_INVALID_OPERATION in glReadPixels(no readbuffer)

[kallisti5]

Yup, it's a known issue currently. I've been stuck trying to fix a blocking Heap corruption issue in Mesa under Haiku.

I (hopefully) should be wrapping this issue up shortly. Once the heap corruption is fixed i'll have a stable base to work on the GL qwerks :)

[kallisti5]

See if things render properly in the latest version. Also let me know how the lack of double buffering effects you. (compare your GL app to GLTeapot)

[cipri]

for my application it's now fixed on hrev 43728 . It works like before. There is still one warning:

Mesa warning: couldn't open libtxc_dxtn.so, software DXTn compression/decompression unavailable

[cipri]

so perhaps this ticket can be closed, and open a new ticket for dxtn compression?

[kallisti5]

Mesa warning: couldn't open libtxc_dxtn.so, software DXTn compression/decompression unavailable

is ok. It is expected as mesa doesn't provide that library due to patent issues. We can't provide it either in a binary form.