Texture upload mechanism used by gstreamer-vaapi relies on 8 bpc.
In latest mesa versions the first fbconfig might not be 8 bit, so iterate
over it to find the correct config with supported values.
This also adds 8 bit alpha size to the framebuffer configuration which is
required to get it working properly.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/410>
This code is just confused. It's asking for at least as many bits of
(z-axis) depth as the root window has bits of (color) depth. For rgb565
or rgb888 this is harmless, but at 10 bits per channel this demands a
30-bit or deeper Z buffer. While some hardware could in principle do a
32-bit Z buffer, Mesa does not expose such fbconfigs (at least on Intel
and AMD).
We're not actually using the Z buffer, so just stop asking for one.
Coverity scan bug:
If the function returns an error value, the error value may be
mistaken for a normal value.
Function sscanf returns the number of assignations done. Validate this
return value with the number of expected variables to match.
In order to know which OpenGL API use, we must detect the API type of current
context. This patch adds the function gl_get_current_api() which returns the
OpenGL API type.
This function is an adaptation of gst_gl_context_get_current_gl_api() from
GstGL.
Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=753099
Use glib >= 2.32 semantics for GMutex and GRecMutex wrt. initialization
and termination. Basically, the new mutex objects can be used as static
mutex objects from the deprecated APIs, e.g. GStaticMutex and GStaticRecMutex.
If GLX window was created from a foreign Display, then that same Display shall
be used for subsequent glXMakeCurrent(). This means that gl_create_context()
will now use the same Display that the parent, if available.
This fixes cluttersink with the Intel GenX VA driver.
