Building an image with yocto for an 'am335x' processor will fail,
because 'gbm.h' can not be found and 'EGL_PLATFORM_GBM_MESA' is not defined.
So simply adding define of 'EGL_PLATFORM_GBM_MESA' in 'gstgldisplay_egl.c'
and adding 'GBM_CFLAGS' in 'gst-gl.m4' to get rid of this errors and complete
a full build process.
ERRORs were:
-----------
gst-plugins-base-1.14.1/gst-libs/gst/gl/gbm/gstglwindow_gbm_egl.h:24:10:
fatal error: gbm.h: No such file or directory
#include <gbm.h>
^~~~~~~
gst-plugins-base-1.14.1/gst-libs/gst/gl/egl/gstgldisplay_egl.c:157:39:
error: 'EGL_PLATFORM_GBM_MESA' undeclared (first use in this function);
did you mean 'EGL_PLATFORM_WAYLAND'?
ret = _gst_eglGetPlatformDisplay (EGL_PLATFORM_GBM_MESA, (gpointer) display,
^~~~~~~~~~~~~~~~~~~~~
https://bugzilla.gnome.org/show_bug.cgi?id=796885
This was miss-leading VAAPI which was not forcing linear back buffers,
would still export DMABuf. That caused bad rendering as the buffers are
tiled and most likely compressed.
https://bugzilla.gnome.org/show_bug.cgi?id=796822
This was miss-leading VAAPI which was not forcing linear back buffers,
would still export DMABuf. That caused bad rendering as the buffers are
tiled and most likely compressed.
e4bf9ed8f0 was not quite right and changed
the wrong thing. Intead we needed to change the multiplication order
and should have kept the previous to/from matrices as is done in this
patch.
We would make the subproject conditional on the wrap-mode=nodownload
however get_option('wrap-mode') or similar is not available from
meson.build files as the wrap-mode is meant to be used automatically.
Instead use the dependency fallback mechanism to get at the subproject
where possible i.e. when downloading is allows and only add the compat
includes when we have a valid internal dependency from the gl-headers
subproject.
https://bugzilla.gnome.org/show_bug.cgi?id=796534
This reverts commit 82c43ff9a3.
Reverting for the time being, since it trips up build bots
that don't have network connectivity.
We ideally shouldn't have a subproject that's used unconditionally.
The matrices were converting the wrong values with non-diagonal-only matrices.
e.g. a typical yflip matrix in [-1,1]^3 such as
1 0 0 0
0 -1 0 0
0 0 1 0
0 0 0 1
Would have actually required a matrix like this in [0,1]^3
1 0 0 0
0 -1 0 0
0 0 1 0
0 -2 0 1
Which is
1. not consistent with our multiplication convention and would require
transposing matrices or changing our multiplication order (from what is
generally used on opengl matrix guides/tutorials).
2. Produces incorrect values when input with actual vertices accounting for
the difference in multiplication order. e.g. some vertices multiplied by
the yflip matrix using vertex * yflip(== transpose(yflip) * vertex):
vertex: -> result: expected:
vec4(1,0,1,1) -> vec4(1,-2,1,1) vec4(1,1,1,1)
vec4(1,1,1,1) -> vec4(1,-3,1,1) vec4(1,0,1,1)
With the updated values, we now get the expected values.
Includes a test for this behaviour and the example above
For a single format in the caps, we were returning some weird answers,
like only RGB formats for a RGB input when we can also support YUV from
RGB.
Fixup of 3cfff727b1 where I thought my
previous (~6month) self had got this right. Don't trust your previous
self people!
Also yield common options to the outer project (gst-build in our case)
so that they don't have to be set manually and use array types for some
options.
Instead of having special cases at each GL texture creation, upload,
readback or copy for all non-8-bits-per-components.
Simply store the more specific format and retrieve the generic
component/type tuple from that.
Introduce a helper function for retrieving the generic GL format (RGBA,
RGB, RG, R, L, A) and type (BYTE, SHORT, SHORT_5_6_5) from a sized
GL format enum (RGBA8, RGB565, RG8, etc).
We need different export decorators for the different libs.
For now no actual change though, just rename before the release,
and add prelude headers to define the new decorator to GST_EXPORT.
Allow for sub-classes to change pad templates to
support other texture targets, and bind input textures
accordingly.
When setting the caps, also store the texture target.
By default, glfilter only reports 2D texture targets
in the default caps, but sub-classes can change that
and it would be nice if they could easily find out
which texture targets were negotiated.
This adds 2 fields to the public struct, but since
it's unreleased -base API, it's not an ABI break.
This prevents cross compilation errors like:
usr/include/xf86drm.h:40:10: fatal error: drm.h: No such file or directory
These are caused because gstgldisplay_gbm.h includes xf86drm.h .
https://bugzilla.gnome.org/show_bug.cgi?id=793837
