We will also require GL_OES_texture_half_float and GLES 3.0 to enable
COGL_FEATURE_ID_TEXTURE_HALF_FLOAT. This gives us float types and makes
it possible to read pixels from framebuffers with internal floating
point formats (into float, half is never supported).
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3441>
There is no internal fp16 format which has no alpha which means we would
get garbage alpha when reading the framebuffer directly. We have to use
the packing/unpacking to always get the alpha of 1.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3441>
Which gltype and glformat are allowed for a given gl framebuffer depends
on the internal gl framebuffer format. Either the format we want to read
into matches the gltype, glformat and doesn't need CPU packing from
another format or we have to use a tmp buffer with a format that matches
the GL requirements.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3441>
Using sized internal formats is required to make sure we actually get
the precision that we want.
The formats should also be renderable, otherwise they can not be used as
a framebuffer attachment. For GLES we have to check for a bunch of
extensions and fall back to internal formats with more bits when they
are not available.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3429>
In GLES 2.0 the required color-renderable formats to support to not
include 8bpc RGB/RGBA formats. The extension adds this requirement and
makes GLES 2.0 actually useable. Not specifying a gl internal format in
Cogl so far has hidden the problem and let the implementation fall back
to RGB585 for example.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3429>
Also be more strict about what we consider RGBA1010102 support. Before
GLES 3.0, using ReadPixels on a framebuffers with format RGB10_A2 was
not possible with type GL_UNSIGNED_INT_2_10_10_10_REV_EXT and thus our
code to read back pixels could fail.
Users of cogl should check those feature flags before using FP16 and
RGBA1010102 pixel formats via CoglFeatureIDs:
* COGL_FEATURE_ID_TEXTURE_RGBA1010102
* COGL_FEATURE_ID_TEXTURE_HALF_FLOAT
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3429>
Group all the three config files from clutter/cogl/meta into one
and also remove unnused configurations and replace duplicated ones
This also fixes Cogl usage of HAS_X11/HAS_XLIB to match the expected
build options
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3368>
destroy_shader_state()/destroy_program_state() are called when the qdata
pointer to the state cache structure gets overwritten, but were only
conditionally destroying it. This lead to leaks when called with a
shader/program state ref count > 1.
Fixes: 9b9e12edb ("cogl: Port Node/Pipeline/PipelineLayer away from CoglObject")
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3141
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3366>
- Make Texture a parent GObject class and move the vtable funcs as vfuncs
instead of an interface as we would like to have dispose free the TextureLoader.
- Make the various texture sub-types inherit from it.
- Make all the sub-types constructors return a CoglTexture instead of their respective
specific type. As most of the times, the used functions accept a CoglTexture,
like all the GTK widgets constructors returning GtkWidget.
- Fix up the basics of gi-docgen for all these types.
- Remove CoglPrimitiveTexture as it is useless: It is just a texture underhood.
- Remove CoglMetaTexture: for the exact same reason as above.
- Switch various memory management functions to use g_ variant instead of the cogl_ one
Note we would still want to get rid of the _cogl_texture_init which is something
for the next commit
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3193>
These were leftovers from times when GL(ES) 1.x was still supported.
As we require HAVE_COGL_GL and/or HAVE_COGL_GLES2 to be defined, all
cases for checking both are now redundant.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3338>
They are needed as "subformats" for higher bit YCbCr formats, such as
P010, and we don't plan to use or expose them otherwise. Thus don't
implement any conversion or packing features.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3244>
So we can properly handle matching DRM and WL_SHM formats in a unified
manner.
Add extensive testing between these and existing pre-multiplied alpha
formats, i.e. all formats we support on Wayland.
Note that unfortunately for some format combinations the value in the
alpha channel is not cleared as expected, likely because of fast-paths
in Cogl. If both source and destination format is opaque, it always
works, however. This thereby includes all cases where they are the same.
Co-Authored-By: Jonas Ådahl <jadahl@gmail.com>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3065>
On GLES2 reading and writing some Cogl formats is not supported
natively. In those cases we use another format to do the reading and
writing. When the internal format and the temporary format differ in
premultiplication, Cogl tries to adjust for it.
Opaque Cogl formats don't have the premult bit set but our internal
format is a premult format. Cogl tries to adjust for it but completely
misses that the opaque format doesn't have an alpha channel and it
should not do so at all.
So skip the premult adjusting when the Cogl format has no alpha channel.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3065>
glGetIntegerv() with GL_RED_BITS/GL_GREEN_BITS/GL_BLUE_BITS/etc. is not
supported with the GL core context, so there is no point in falling back
to that without supporting COGL_PRIVATE_FEATURE_QUERY_FRAMEBUFFER_BITS,
as this will cause an GL error.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3047>
The function ensure_bits_initialized() in cogl-gl-framebuffer-fbo.c
checks for COGL_PRIVATE_FEATURE_QUERY_FRAMEBUFFER_BITS whereas the same
in cogl-gl-framebuffer-back.c simply checks for the driver being
COGL_DRIVER_GL3.
Change the later to use the COGL_PRIVATE_FEATURE_QUERY_FRAMEBUFFER_BITS
flag as well.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3047>
Cogl's feature COGL_PRIVATE_FEATURE_QUERY_FRAMEBUFFER_BITS is required
to use the GL_FRAMEBUFFER_ATTACHMENT_* queries.
Unfortunately, the test for the availability of the private feature is
actually inverted in ensure_bits_initialized() which causes that whole
portion of code to be ignored, falling back to the glGetIntegerv()
method which isn't supported in core profiles.
As Mesa has recently started to be more strict about these, this causes
the CI tests to fail in mutter.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3047>
The only consumer of this type of rect was the scissor clipping,
which was removed by the previous commit.
Remove window rects from CoglClipStack, and all dependent code.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3006>
