When running in a purely swrast environment (such as with
LIBGL_ALWAYS_SOFTWARE), the extension is not exposed by mesa,
but wayland is still possible with wl_shm.
https://bugzilla.gnome.org/show_bug.cgi?id=704750
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 8d4e4b0e8062708cece4d4c929abccc492ee21cc)
It was an oversight when making the CoglAtlasTexture api public that we
continued to use the COGL_TEXTURE_INTERNAL_DEFINE macro. This updates
the code to now use COGL_TEXTURE_DEFINE which means the
cogl_is_atlas_texture() function will now be exported in the public api.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Reviewed-by: Lionel Landwerlin <llandwerlin@gmail.com>
(cherry picked from commit ecbe209f48be80fe45b48f92b277a2aee08d5704)
The recommended usage model for rendering pipelines with minor changes
is to make a copy of a base pipeline just before rendering and then
modify that. The new pipeline can then be used as the base pipeline
for the next paint. Currently this has a known problem when modifying
uniform values in that Cogl won't prune the redundant ancestry and
instead it will end up with an ever-growing chain of pipelines. This
is particularly bad for something like CoglGST where it could also end
up leaking textures for the video frames if the pipelines are used to
render video.
The patch adds a test case for that situation so that we won't forget
about the problem. The test is maked as a known failure. Additionally
the patch adds a similar test for setting the blend constant to
constrast the test with some state that does work correctly.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 2550181543389d6e9e1cb9618d17cd352a0cf9b6)
This reverts the change in semantics for cogl_texture_new_with_size so
that it goes back to allocating textures synchronously and returning
NULL if there was a failure to allocate. Only the new/2.0 texture apis
will have the lazy allocation behaviour so we avoid breaking existing
code. This also fixes a potential crasher by removing a code path
that was passing NULL to cogl_texture_allocate() that would have caused
and abort if there were an error.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This adds a #define for gl_PointCoord to all shaders so that it can be
accessed with a name in the Cogl namespace.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit c28fc054788e88627bcc2346f4c4c368870ff777)
Previously we would only add the #version pragma to shaders when
point sprite texture coordinates are enabled for a layer so that we
can access the gl_PointCoord builtin. However I don't think there's
any good reason not to just always request GLSL version 1.2 if it's
available. That way applications can always use gl_PointCoord without
having to enable point sprite texture coordinates.
This adds a glsl_version_to_use member to CoglContext which is used to
generate the #version pragma as part of the shader boilerplate. On
desktop GL this is set to 120 if version 1.2 is available, otherwise
it is left at 110. On GLES it is always left as 100.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit e4dfe8b07e8af111ecbcb0da20ff2a2875a2b5d0)
Conflicts:
cogl/driver/gl/gl/cogl-driver-gl.c
The documentation for the builtin varyings for the texture coordinates
was wrongly claiming that the varyings are stored in an array. This
was changed in e55b64a9cdc9 so that each layer gets its own
independent varying.
The documentation was also referring to texture units instead of layer
numbers. The texture units are no longer publicly exposed in the
shaders and instead everything should in theory be expressed in terms
of layer numbers.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit bf6b509c340bdc3be30e1a81fb96710b3176e9dc)
The deprecation macros need to be before the function prototype on
Visual Studio, and is also accepted by GCC.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Add the symbols that were added to the public Cogl API, and remove the
export of an internal API that was also removed. Unfortunately
_cogl_system_error_quark needs to be exported for the conformance test
programs.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Cogl-Path was split out from the main Cogl library to become a standalone
library, but many libraries/appplications using Cogl (such as Clutter)
expects that Cogl-Path is still in Cogl. Define
COGL_HAS_COGL_PATH_SUPPORT here, as it will always be needed, at least for
the 1.16 release series, so that builds of items using Cogl would not
break, such as Clutter.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
The autotools variables to substitute for versioning in 1.16 is wrong, so we
have incorrect versioning info during a release as the variables are for
Cogl-2.x. Fix this so we can have the correct versioning info for the
Cogl/Cogl-Pango DLLs during a release.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
The cogl-texture-private.h needs to be included as
_cogl_texture_needs_premult_conversion, so that we can avoid implicit
declaration warnings of that symbol (aka C4013 on MSVC).
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 4afe9dc1fea646e2a9576f9a0dbd1ffafa40485b)
So we don't read an initializes value later on. Caught by valgrind:
Conditional jump or move depends on uninitialised value(s)
_cogl_object_texture_rectangle_indirect_free (cogl-texture-rectangle.c:105)
_cogl_object_context_indirect_free (cogl-context.c:453)
...
main (text.c:149)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 90415aae9495749a2a9e85fb17425a3c7f6a08c8)
Mesa has started getting picky about specifying the precision for
floating types in the fragment shader. We already have a default
precision specifier in all the fragment shaders but apparently this
wasn't working because it is only used when the __VERSION__ define is
100 and Mesa is reporting 110. Regardless of whether Mesa is doing the
right thing or not I think it makes sense to use GL_ES instead of
__VERSION__ because we will also need the precision specifier if we
start requesting GLSL 3.0. The GLES specification explictly states
that GL_ES will only be defined for GLES and this is similar to what
the internal meta shaders do in Mesa.
http://cgit.freedesktop.org/mesa/mesa/commit/?id=cabd45773b58d6aa482
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 37f5205739cfb0745ea74dedaec117081ba0088b)
