This adds COGL_PIXEL_FORMAT_RG_88 and COGL_TEXTURE_COMPONENTS_RG in
order to support two-component textures. The RG components for a
texture is only supported if COGL_FEATURE_ID_TEXTURE_RG is advertised.
This is only available on GL 3, GL 2 with the GL_ARB_texture_rg
extension or GLES with the GL_EXT_texture_rg extension. The RG pixel
format is always supported for images because Cogl can easily do the
conversion if an application uses this format to upload to a texture
with a different format.
If an application tries to create an RG texture when the feature isn't
supported then it will raise an error when the texture is allocated.
https://bugzilla.gnome.org/show_bug.cgi?id=712830
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 568677ab3bcb62ababad1623be0d6b9b117d0a26)
Conflicts:
cogl/cogl-bitmap-packing.h
cogl/cogl-types.h
cogl/driver/gl/gl/cogl-driver-gl.c
tests/conform/test-read-texture-formats.c
tests/conform/test-write-texture-formats.c
The test makes an L-shaped path that fills the whole framebuffer
except for the top right quadrant. It then clips to that and tries to
fill the framebuffer with a rectangle. Then it verifies that all of
the quadrants have the expected colour.
This is currently failing due to a bug in the primitive clipping.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 5404033220099b4a3c6cf32a0d269c4e98489fee)
This declares the interface types CoglFramebuffer, CoglBuffer,
CoglTexture, CoglMetaTexture and CoglPrimitiveTexture as void when
including the public cogl.h header so that users don't have to use lots
of C type casts between instance types and interface types.
This also removes all of the COGL_XYZ() type cast macros since they do
nothing more than compile time type casting but it's less readable if
you haven't seen that coding pattern before.
Unlike with gobject based apis that use per-type macros for casting and
performing runtime type checking we instead prefer to do our runtime
type checking internally within the front-end public apis when objects
are passed into Cogl. This greatly reduces the verbosity for users of
the api and may help reduce the chance of excessive runtime type
checking that can sometimes be a problem.
(cherry picked from commit 248a76f5eac7e5ae4fb45208577f9a55360812a7)
Since we can't break the 1.x api this version of the patch actually
defines compatible NOP macros within deprecated/cogl-type-casts.h
In the cases where we cache vertex state with an ancestor pipeline (whose
vertex processing state is equivalent) we need to invalidate that state
if that ancestor is later modified.
This conformance test checks this case but currently fails because we
only notify the progend directly associated with the pipeline being
changed.
In this case the pipeline can be using a different progend to the
ancestor which it is caching state with so when the ancestor is changed
it needs to notify all the progends that they may need to clear their
private state.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit e112af5f770d6c46688fdcb5ba38b75ca0778891)
The unit tests were failing to build with mingw32 because the
libtest-fixtures was being included both by libcogl and the
test-conformance and test-unit executables. That meant that the
symbols were defined twice and it wouldn't link.
The rule which depends on test-unit being built needs to be called
test-unit.exe on Windows so this patch fixes it to use the $(EXEEXT)
variable to get the right name.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 575bac47fee0b425f4fd30761e5819443e6c045f)
Conflicts:
tests/conform/Makefile.am
tests/unit/Makefile.am
This splits out the cogl_path_ api into a separate cogl-path sub-library
like cogl-pango and cogl-gst. This enables developers to build Cogl with
this sub-library disabled if they don't need it which can be useful when
its important to keep the size of an application and its dependencies
down to a minimum. The functions cogl_framebuffer_{fill,stroke}_path
have been renamed to cogl_path_{fill,stroke}.
There were a few places in core cogl and cogl-gst that referenced the
CoglPath api and these have been decoupled by using the CoglPrimitive
api instead. In the case of cogl_framebuffer_push_path_clip() the core
clip stack no longer accepts path clips directly but it's now possible
to get a CoglPrimitive for the fill of a path and so the implementation
of cogl_framebuffer_push_path_clip() now lives in cogl-path and works as
a shim that first gets a CoglPrimitive and uses
cogl_framebuffer_push_primitive_clip instead.
We may want to consider renaming cogl_framebuffer_push_path_clip to
put it in the cogl_path_ namespace.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 8aadfd829239534fb4ec8255cdea813d698c5a3f)
So as to avoid breaking the 1.x API or even the ABI since we are quite
late in the 1.16 development cycle the patch was modified to build
cogl-path as a noinst_LTLIBRARY before building cogl and link the code
directly into libcogl.so as it was previously. This way we can wait
until the start of the 1.18 cycle before splitting the code into a
separate libcogl-path.so.
This also adds shims for cogl_framebuffer_fill/stroke_path() to avoid
breaking the 1.x API/ABI.
Install the conformance tests, and metadata to run them
with gnome-desktop-testing-runner.
https://bugzilla.gnome.org/show_bug.cgi?id=702942
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 53f3eb421239982b69569ad03ccbfa4b4f601cf3)
It looks like Cogl doesn't currently clean up an unallocated atlas
texture properly so if it fails to allocate it. It will then crash
when it is freed. This adds a conformance test to verify that all of
the various texture types can be freed without allocating them.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit bfada22d9a7f60baad5ae5615e45f10327e23e36)
This adds a new function to enable per-vertex point size on a
pipeline. This can be set with
cogl_pipeline_set_per_vertex_point_size(). Once enabled the point size
can be set either by drawing with an attribute named
'cogl_point_size_in' or by writing to the 'cogl_point_size_out'
builtin from a snippet.
There is a feature flag which must be checked for before using
per-vertex point sizes. This will only be set on GL >= 2.0 or on GLES
2.0. GL will only let you set a per-vertex point size from GLSL by
writing to gl_PointSize. This is only available in GL2 and not in the
older GLSL extensions.
The per-vertex point size has its own pipeline state flag so that it
can be part of the state that affects vertex shader generation.
Having to enable the per vertex point size with a separate function is
a bit awkward. Ideally it would work like the color attribute where
you can just set it for every vertex in your primitive with
cogl_pipeline_set_color or set it per-vertex by just using the
attribute. This is harder to get working with the point size because
we need to generate a different vertex shader depending on what
attributes are bound. I think if we wanted to make this work
transparently we would still want to internally have a pipeline
property describing whether the shader was generated with per-vertex
support so that it would work with the shader cache correctly.
Potentially we could make the per-vertex property internal and
automatically make a weak pipeline whenever the attribute is bound.
However we would then also need to automatically detect when an
application is writing to cogl_point_size_out from a snippet.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 8495d9c1c15ce389885a9356d965eabd97758115)
Conflicts:
cogl/cogl-context.c
cogl/cogl-pipeline-private.h
cogl/cogl-pipeline.c
cogl/cogl-private.h
cogl/driver/gl/cogl-pipeline-progend-fixed.c
cogl/driver/gl/gl/cogl-pipeline-progend-fixed-arbfp.c
This moves the code in test-bitmask into a UNIT_TEST() directly in
cogl-bitmask.c which will now be run as a tests/unit/ test.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 693c85e0cde8a1ffbffc03a5f8fcc1f92e8d0ac7)
Includes fix to build conform tests with -I$(top_builddir)/cogl to
be able to find cogl-gl-header.h
This adds a white-box unit test that verifies that GL_BLEND is disabled
when drawing an opaque rectangle, enabled when drawing a transparent
rectangle and then disabled again when drawing a transparent rectangle
but with a blend string that effectively disables blending.
This shares the test utilities and launcher infrastructure we are using
for conformance tests so we get consistent reporting and so unit tests
will be run against a range of different drivers.
This adds a --enable-unit-tests configure option which is enabled by
default but if disabled will make all UNIT_TESTS() into static inline
functions that we should expect the compiler to discard since they won't
be referenced by anything.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 9047cce06bbf9051ec77e622be2fdbb96ed767a8)
This adds a test to make sure that if the same pipeline is used to draw
two primitives, one which doesn't need blending because it has an opaque
color associated, and another using a color attribute that requires
blending then Cogl should recognize that it needs to enable blending for
the second primitive even though the pipeline hasn't changed.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit c15d91f1c6293bebd4494d1e20586121483cddef)
This enables basic Emscripten support in Cogl via the SDL winsys.
Assuming you have setup an emscripten toolchain you can configure Cogl
like this:
emconfigure ./configure --enable-debug --enable-emscripten
Building the examples will build .html files that can be loaded directly
by a WebGL enabled browser.
Note: at this point the emscripten support has just barely been smoke
tested so it's expected that as we continue to build on this we will
learn about more things we need to change in Cogl to full support this
environment.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit a3bc2e7539391b074e697839dfae60b69c37cf10)
cogl_framebuffer_add_fence creates a synchronisation fence, which will
invoke a user-specified callback when the GPU has finished executing all
commands provided to it up to that point in time.
Support is currently provided for GL 3.x's GL_ARB_sync extension, and
EGL's EGL_KHR_fence_sync (when used with OpenGL ES).
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=691752
(cherry picked from commit e6d37470da9294adc1554c0a8c91aa2af560ed9f)
Some of the examples and tests are using functions from -lm. With some
linkers, if we don't expicitly link against it an error will be
reported. This patch adds the library to all of the examples even
though not all of them use math functions because I don't think it
will do any harm and it will save us having to remember to add it if
an example later starts using some math functions.
https://bugzilla.gnome.org/show_bug.cgi?id=697330
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 66a1aeaee1f7cdcdd505f5745277723a43d714b6)
Conflicts:
examples/Makefile.am
tests/conform/Makefile.am
tests/micro-perf/Makefile.am
Currently when a unique pipeline is created and added to the pipeline
cache that pipeline will live forever which includes keeping a
reference to any large resources that the pipeline has such as
textures. These textures don't actually need to be kept for the
pipeline to be used as a key in the hash table so ideally we wouldn't
do this. This test case tries rendering with a pipeline that has
textures and then checks whether the textures are successfully
destroyed after the pipeline is unreffed. The test is currently marked
as a known failure because the pipeline cache will prevent them from
being destroyed.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 0056f805dadd46b966d57f66b02890b8c29971ac)
The current recommendation for pipelines is that once they have been
used for painting then they should be considered immutable. If you
want to modify a pipeline you should instead make a copy and unref the
original pipeline. Internally we try to check whether the modified
copy replaces all of the properties of the parent and prune a
redundant ancestor hierarchy. Pruning the hierarchy is particularly
important if the pipelines contain textures because otherwise the
textures may be leaked when the parent pipeline keeps a reference to
it.
This test verifies that usage pattern by creating a chain of pipeline
copies each with their own replacement texture. Some user data is then
set on the textures with a callback so that we can verify that once
the original pipelines are destroyed then the textures are also
destroyed.
The test is currently failing because Cogl doesn't correctly prune
ancestory for layer state authority.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 3fbec92acb90008492eb125025f92b42d6e07930)
This adds a conformance test which draws a rectangle using the journal
in-between two rectangles drawn with primitives without changing any
other state. Currently this is failing because the modelview matrix
state is not correctly flushed.
The journal also flushes in own clip state so the test additionally
puts everything in a clip and verifies that that worked. This is not
currently broken but we might as well test it.
https://bugzilla.gnome.org/show_bug.cgi?id=693612
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit b703f9a1a98894a12021cbdd632e1d59214e612f)
This make autogen.sh look for automake-1.13 and also updates all
Makefile.am files to no longer use the INCLUDES variable which automake
1.13 warns is deprecated by AM_CPPFLAGS.
https://bugzilla.gnome.org/show_bug.cgi?id=690891
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 5de5569e960102afe979a5f2f0403e1defebca62)
This adds a test which creates two offscreen framebuffers, one with
just an alpha component texture and the other will a full RGBA
texture. The bit sizes of both framebuffers are then checked to verify
that they either have or haven't got bits for the RGB components.
The test currently fails because the framebuffer functions don't bind
the framebuffer before querying so they just query whichever
framebuffer happened to be used last.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 7ca01373efe908efc9f18f2cb7f4a51c274ef677)
This adds a conformance test which renders a rectangle texture using
the two wrap modes clamp-to-edge and repeat. It then verifies that the
correct region of the texture is drawn for the texture coordinates
that are > 1.0.
The test currently always fails. The cogl_framebuffer_draw_rectangle
function is documented to always take normalized texture coordinates
regardless of the coordinate system of the texture. This works
correctly if all of the texture coordinates are in the range [0.0,1.0]
because cogl-primitives uses a different code path in that case.
However if the multiple-quad code path is taken then the coordinates
actually need to un-normalized for it to work.
There is a comment in cogl_meta_texture_foreach_in_region() which
implies that the incoming coordinates should always be normalized.
The documentation for the callback says that the resulting sub-texture
coordinates will always be in the coordinate system of the low-level
texture. However it doesn't work out like this because the meta
texture function uses the span iterating function which always returns
normalized coordinates. It looks like there needs to be some more
conversions going on somewhere.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit d2059bb32b8015060e10f41dbbb68d4230b47ddb)
This ports the test-texture-get-set-data clutter test to be a standalone
Cogl test.
(cherry picked from commit 40defa3dbd355754d0f7611d3c50de35db514e4a)
This adds a conformance test with an alpha-component texture. The
texture is rendered using a pipeline with the same layer combine mode
as cogl-pango.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 05190519bad4519e66cbdb5326943c832d15a841)
This updates the npot-texture test to use Cogl directly instead of
relying on Clutter.
Note that this currently fails when Cogl ends up using sliced
textures. It looks like there is some bug with the meta texture
function to iterate the primitive textures. This happens when
COGL_DEBUG=disable-npot-textures is set.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 32f0e1e8fff56be3123dc4571f07bb5a314f6818)
This adds a small test case which maps a sub region of a small
attribute buffer and replaces the texture coordinates of one of the
vertices. The vertices are then drawn and the correct colours are
checked.
There is now a new test requirement for the
COGL_FEATURE_ID_MAP_BUFFER_FOR_WRITE feature which this test requires.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 22183265b021dd038338b4398056c0a1eae77edb)
This adds a simple test which sets an alpha test on a pipeline and
then renders a texture. It then verifies that the transparent parts of
the texture aren't drawn. This is currently failing with the GL3
driver because GL3 requires the alpha test to be implemented in GLSL
but the generated alpha test uniform is only updated for the GLES2
driver.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 4ec04507bfaf2d61707dccfb59ac7326962ee741)
If we're using the system glib library then we need to make sure not to
include headers under deps/glib otherwise we end up with with
incompatible typedefs that break the build.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 5d5fc97b59951ec56a4193b7ee7909ebd3cfbb94)
This commit pushes --disable-glib to the extreme of embedding the par of
glib cogl depends on in tree to be able to generate a DSO that does not
depend on an external glib.
To do so, it:
- keeps a lot of glib's configure.ac in as-glibconfig.m4
- pulls the code cogl depends on and the necessary dependencies
Reviewed-by: Robert Bragg <robert@linux.intel.com>
The test creates a pipeline with two layers which add two different
color constants together and then tries various combinations of
removing the layers and checks that it gets the right color.
Currently this is failing if a pipeline is copied and then a layer is
removed from the copy.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 844440a5cee5907c4d61e995804534ac0613bb0f)
This adds some preliminary testing for eulers and quaternions. It
mostly just tests the cogl_matrix_init_from_{quaternion,euler}
functions as well as applying a euler or quaternion transformation to
a framebuffer's modelview matrix.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit a32eb76e16d7d76af2fe8a6ba9151d8826b58864)
This adds a conformance test that creates a GLES2 context via the cogl
api and verifies clearing an offscreen framebuffer via the gles2 api,
and switching back and forth between the Cogl and GLES2 apis.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 9369c60a596c0cbc7a8bb9a45d7b8ffb6a848311)
This updates test-atlas-migration from being a Clutter-based test to a
Cogl-based test.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 32c5a3ed546effd2e2946f22f173a20cf36b2fdf)
This adds a version header which contains macros to define which
version of Cogl the application is being compiled against. This helps
applications that want to support multiple incompatible versions of
Cogl at compile time.
The macros are called COGL_VERSION_{MAJOR,MINOR,MICRO}. This does not
match Clutter which names them CLUTTER_{MAJOR,MINOR,MICRO}_VERSION but
I think the former is nicer and it at least matches Cairo and Pango.
The values of the macro are defined to COGL_VERSION_*_INTERNAL which
is generated by the configure script into cogl-defines.h.
There is also a macro for the entire version as a string called
COGL_VERSION_STRING.
The internal utility macros for encoding a 3 part version number into
a single integer have been moved into the new header so they can be
used publicly as a convenient way to check if the version is within a
particular range. There is also a COGL_VERSION_CHECK macro for the
very common case that a feature will be used since a particular
version of Cogl. There is a macro called COGL_VERSION which contains
the pre-encoded version of Cogl being compiled against for
convenience.
Unlike in Clutter this patch does not add any runtime version
identification mechanism.
A test case is also added which just contains static asserts to sanity
check the macros.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 3480cf140dc355fa87ab3fbcf0aeeb0124798a8f)
This splits the GL header inclusion from cogl-defines.h into a
separate headear called cogl-gl-header.h which we will only include
internally. That way we don't leak GL declarations out of our public
headers. The texture functions that were using GLenum and GLuint in
the public header have now changed to just use unsigned int. Note
however that if an EGL winsys is enabled then it will still publicly
include an EGL header. This is a bit more awkward to fix because we
have public API which returns an EGLDisplay and we can't determine
what type that is.
There is also a conformance test which just verifies that no GL header
has been included while compiling. The test isn't added to
test-conform-main because it doesn't actually test anything at
runtime.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit ef5680d3fda5df929dbd0b420c8f598ded58dfee)
This adds a conformance test which renders a texture point using a 2x2
texture with a different color for each texel. It then verifies that
each texel is mapped to the correct position on the point. The test is
currently failing.
The test requires the point sprite feature flag so this patch also
adds a TEST_REQUIREMENT_* flag for that.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
This tries rendering some points at various sizes and checks that they
are the expected size and make a rectangle shape. This is currently
failing when the GLSL vertend is used because it flushes the point
size in the wrong place.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
This adds a test similar to the test-read-texture-formats test but
that updates data on a 1x1 pixel RGBA texture instead. On GLES2 this
should end up testing all of the convesion code because in that case
GL only supports reading back RGBA data.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
The test-read-alpha-texture test has been replaced with a test that
tries reading an RGBA texture in all current pixel formats. On GLES2
this should end up testing all of the convesion code because in that
case GL only supports reading back RGBA data. The test now works on
GLES2 since the conversion code for all of the formats has been added
so this also removes the GL requirement.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
This just creates a 1x1 RGBA texture and then reads it back in
COGL_PIXEL_FORMAT_A_8 format. Gnome Shell is doing this to create a
shadow and I accidentally broke it so this should hopefully stop that
happening again.
https://bugzilla.gnome.org/show_bug.cgi?id=671016
Reviewed-by: Robert Bragg <robert@linux.intel.com>
This patch reworks our conformance testing framework because it seems
that glib's gtesting framework isn't really well suited to our use case.
For example we weren't able to test windows builds given the way we
were using it and also for each test we'd like to repeat the test
with several different environments so we can test important driver and
feature combinations.
This patch instead switches away to a simplified but custom approach for
running our unit tests. We hope that having a more bespoke setup will
enable us to easily extend it to focus on the details important to us.
Notable changes with this new approach are:
We can now run 'make test' for our mingw windows builds.
We've got rid of all the test-*report* make rules and we're just left
with 'make test'
'make test' now runs each test several times with different driver and
feature combinations checking the result for each run. 'make test' will
then output a concise table of all of the results.
The combinations tested are:
- OpenGL Fixed Function
- OpenGL ARBfp
- OpenGL GLSL
- OpenGL No NPOT texture support
- OpenGLES 2.0
- OpenGLES 2.0 No NPOT texture support
Reviewed-by: Neil Roberts <neil@linux.intel.com>
There are currently quite a few places in Cogl where we muddle the
layer index and the texture unit number. The theory is that these two
numbers shouldn't be related and it should be possible to pick large
layer numbers with gaps.
This patch adds a test case to check that we can reference a large
layer number from a texture combine string by creating a pipeline with
only three layers but that have very large layer indices. This doesn't
currently work because Cogl interprets the numbers in the combine
strings to be the unit indices and not the layer indices. The
documentation however calls these numbers layer numbers so presumably
it is not meant to work that way.
There are probably many other bugs related to this that the test case
doesn't pick up so it would be good to add some more tests here, for
example to test that you can bind an attribute to the texture
coordinates for a large layer index.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
