Hi,
I am working on a linux (directfb/fbdev) port of chromium on a set top box platform which has a Mali-400 GPU.
I have an issue with an HTML application creating a webgl context in RGB (without alpha).
After analysis, we can see that chromium creates a frame buffer object, and tries to attach a texture via glFramebufferTexture2D. When checking the status via glCheckFramebufferStatus, we get the error GL_FRAMEBUFFER_UNSUPPORTED. This issue happens only if the color buffer is in format GL_RGB. There is no issue if the format is GL_RGBA.
it seems that the Mali-400 opengl implementation does not support RGB texture as a frame buffer attachment. Is it the case?
Thanks&Regards,
Lidwine