If you include a file that might define __INSIDE_COGL_H__, don't
undefine it if it wasn't defined in that file. This makes it possible
to include for example cogl-gles2.h from some other file which defines
__INSIDE_COGL_H__.
https://bugzilla.gnome.org/show_bug.cgi?id=768976
When using a context with robustness, glGetError() may return
GL_CONTEXT_LOST at any time and this error doesn't get cleared until
the application calls glGetGraphicsResetStatus() . This means that our
error checking can't call glGetError() in a loop without checking for
that return value and returning in that case.
https://bugzilla.gnome.org/show_bug.cgi?id=739178
commit 188752158 changed cogl to stop needlessly creating its own
monitor output configuration when mutter would just soon overwrite
it anyway.
Unfortunately, that commit is causing a crash in some cases because
cogl will now create and later draw to a 0x0 egl surface until mutter
sets the monitor layout.
This commit changes cogl to avoid creating and using a surface, before
it knows how big of a surface to create.
https://bugzilla.gnome.org/show_bug.cgi?id=758073
If we get EACCES from drmPageFlip we're not going to get
a flip event and shouldn't wait for one.
This commit changes the EACCES path to silently ignore the
failed flip request and just clean up the fb.
https://bugzilla.gnome.org/show_bug.cgi?id=756926
ES3 provides glMapBufferRange as core, with the added bonus that it also
supports read mappings. Use this where possible.
Signed-off-by: Daniel Stone <daniels@collabora.com>
https://bugzilla.gnome.org/show_bug.cgi?id=728355
GLES2 does not support passing READ to glMapBuffer; attempting to call
cogl_buffer_map for read on ES2 will bring it down with an assert. Make
sure COGL_DEBUG=journal doesn't do this when it's not possible.
Signed-off-by: Daniel Stone <daniels@collabora.com>
https://bugzilla.gnome.org/show_bug.cgi?id=728355
On Wayland deinit() of an onscreen buffer is going to destroy the
associated native window of an EGLSurface. So we should destroy the
EGLSurface as well otherwise we might end up confusing the GL driver.
We also currently guard against setting a EGL_NO_SURFACE as current
EGLSurface, but this shouldn't be a problem if we have a surfaceless
context. So we allow surface destruction under that condition.
https://bugzilla.gnome.org/show_bug.cgi?id=754667
If the user switches VTs in the middle of a page flip, the
page flip operation may fail with EACCES. page flipping will
work next time the VT becomes active, so we shouldn't disable
page flipping in that case.
https://bugzilla.gnome.org/show_bug.cgi?id=754540
If cogl fails to open the drm device, initialize gbm, or open the
egl display, then it closes the drm fd, uninitializes gbm, closes the
display and then calls _cogl_winsys_renderer_disconnect which does
most of those things again, on the, now deinitialized, members.
This commit removes the explicit failure handling in renderer_connect and
defers cleanup to disconnect.
https://bugzilla.gnome.org/show_bug.cgi?id=754540
gbm confusingly has two different format types, and cogl
is using the wrong one in some of its calls to gbm_surface_create
This commit fixes the calls that are wrong.
https://bugzilla.gnome.org/show_bug.cgi?id=754540
glGetIntegerv (GL_DEPTH_BITS, ...) and friends are deprecated in GL3; we
have to use glGetFramebufferAttachmentParameteriv() instead, like we do
for offscreen framebuffers.
Based on a patch by: Adel Gadllah <adel.gadllah@gmail.com>
Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
https://bugzilla.gnome.org/show_bug.cgi?id=753295
We want to be able to retrieve the XVisualInfo used when creating the
GL context under GLX and EGL-X11, so that we can use the visual before
we have an onscreen frame buffer.
Initialize variables; GCC does not always catch all cases where the
variables are used after being initialized, especially when it comes to
out parameters.
Some drivers ( like mgag200 ) don't yet support drmModePageFlip.
This commit forgoes waiting for vblank and flips right away
in those cases. That prevents the hardware from freezing up the screen,
but does mean there will be some visible tearing.
https://bugzilla.gnome.org/show_bug.cgi?id=746042
We can't just destroy and replace the EGL and gbm surfaces while
they are still in use i.e. while there is a pending flip. In fact, in
that case, we were calling gbm_surface_destroy() on a surface that
still had the front buffer locked and then, on the flip handler,
gbm_surface_release_buffer() for a buffer that didn't belong to the
new surface.
Instead, we still allocate new surfaces when requested but they only
replace the old ones on the next swap buffers when we're sure that the
previous flip has been handled and buffers properly released.
Currently the code queries the current msc then tries to approximate the
value of the next msc satisfing the modulus 2 for when to wait. This
introduces some instability as the msc may tick over during the
roundtrip leading to a 32ms wait instead of a 16ms wait. This happens
often enough to cause jerky animations, and affect gnome-shell-perf-tool.
A simpler solution is just use a single roundtrip by using WaitForMsc to
ask the driver to compute the next vblank itself.
Cc: Owen W. Taylor <otaylor@fishsoup.net>
Cc: Robert Bragg <robert@linux.intel.com>
Reviewed-by: Robert Bragg <robert@sixbynine.org>
Add cogl_texture_pixmap_x11_new_left() and
cogl_texture_pixmap_x11_new_right() (which takes the left texture
as an argument) for texture pixmap rendering with stereo content.
The underlying GLXPixmap is created using a stereo visual and shared
between the left and right textures.
Reviewed-by: Robert Bragg <robert.bragg@intel.com>
If we want to show quad-buffer stereo with Cogl, we need to pick an
appropriate fbconfig for creating the CoglOnscreen objects. Add
cogl_onscreen_template_set_stereo_enabled() to indicate whether
stereo support is needed.
Add cogl_framebuffer_get_stereo_mode() to see if a framebuffer was
created with stereo support.
Add cogl_framebuffer_get_stereo_mode() to pick whether to draw to
the left, right, or both buffers.
Reviewed-by: Robert Bragg <robert.bragg@intel.com>
An application might for whatever reason want to control a specific output
directly and have cogl only swap the other outputs if any. So add an api that
allows setting a crtc to be ignored.
https://bugzilla.gnome.org/show_bug.cgi?id=730536
The surfaceless context extension can be used to bind a context
without a surface. We can use this to avoid creating a dummy surface
when the CoglContext is first created. Otherwise we have to have the
dummy surface so that we can bind it before the first onscreen is
created.
The main awkward part of this patch is that theoretically according to
the GL and GLES spec if you first bind a context without a surface
then the default state for glDrawBuffers is GL_NONE instead of
GL_BACK. In practice Mesa doesn't seem to do this but we need to be
robust against a GL implementation that does. Therefore we track when
the CoglContext is first used with a CoglOnscreen and force the
glDrawBuffers state to be GL_BACK.
There is a further awkward part in that GLES2 doesn't actually have a
glDrawBuffers state but GLES3 does. GLES3 also defaults to GL_NONE in
this case so if GLES3 is available then we have to be sure to set the
state to GL_BACK. As far as I can tell that actually makes GLES3
incompatible with GLES2 because in theory if the application is not
aware of GLES3 then it should be able to assume the draw buffer is
always GL_BACK.
Reviewed-by: Robert Bragg <robert.bragg@intel.com>
(cherry picked from commit e5f28f1e75db9bdc4f2688f420a74f908f96cf76)
Conflicts:
cogl/winsys/cogl-winsys-egl-kms.c
cogl/winsys/cogl-winsys-egl-x11.c
Some features that were previously available as an extension in GLES2
are now in core in GLES3 so we should be able to specify that with the
gles_availability mask of COGL_EXT_BEGIN so that GL implementations
advertising GLES3 don't have to additionally advertise the extension
for us to take advantage of it.
Reviewed-by: Robert Bragg <robert.bragg@intel.com>
(cherry picked from commit 4d892cd97558da61ba526f947ac0555ebab632d2)
When a new CoglAtlasTexture tries to fit into an existing CoglAtlas
it should make sure the atlas stays valid while it expands.
https://bugzilla.gnome.org/show_bug.cgi?id=728064
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 2eec9758f67e9073371c2edd63379324849373c4)
This can happen when we dpms off the output or when login1 takes away
drm master status from our drm fd. In either case, we need to call
the swap notify handler so that the compositor dosn't get stuck waiting
for that notification. The compositor should stop repainting shortly in
both cases, as it's either going into dpms off mode or vt switching away.
https://bugzilla.gnome.org/show_bug.cgi?id=728979
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This environment variable predates the reliable platform detection in mesa
and typically just causes crashes when the specified platform doesn't
match what's passed in. Aside from being unecessary and problematic
it also leaks into the GNOME session, preventing clients from
automatically detecting the wayland platform.
https://bugzilla.gnome.org/show_bug.cgi?id=728978
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Prevent Cogl function names from being mangled when a C++ compiler is
being used by adding some missing COGL_{BEGIN,END}_DECLS guards.
https://bugzilla.gnome.org/show_bug.cgi?id=728628
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Commit 1b2dd815 (Registers gtypes for all public objects and structs)
introduced GCCism's in its use of varargs, which broke the build of Cogl
on other non-GCC compilers, such as Visual Studio.
Define the COGL_GTYPE_DEFINE_BASE_CLASS and COGL_GTYPE_DEFINE_CLASS macros
using ISO-style varargs so that the build of Cogl can be fixed on non-GCC
compilers.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Remove #pragma directives that causes any applications that use Cogl to
link to the SDL libraries when Cogl was built with the SDL winsys. This is
mainly due to the availability of both SDL-1.x and SDL-2.x support in the
SDL winsys, where different libraries are linked for SDL-1.x and SDL-2.x.
To avoid having to link to the SDL/SDL2 libraries when the application code
is not directly using SDL/SDL2, define SDL_MAIN_HANDLED in the CFLAGS so
that SDL's wrapper main() implementation will not be used when the
application is being built.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit c3035912833eabe1f6dadbea23c78e595aac79dc)
In Lionel's work for supporting introspection better for Cogl, a number of
public symbols were added for Cogl and Cogl-Path, so add these symbols to
cogl.symbols and cogl-path.symbols so that they can be exported, which will
fix the build of the Cogl conformance test and the introspection files
for the Windows-based builds.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This macro is internal to gobject so using it risks breaking Cogl if
glib changes its API. Instead we just use its expansion. Note that
glib provides two expansions for this depending on the glib version
but this only uses the one for older versions.
Reviewed-by: Robert Bragg <robert.bragg@intel.com>
This adds much more comprehensive support for gobject-introspection
based bindings by registering all objects as fundamental types that
inherit from CoglObject, and all structs as boxed types.
Co-Author: Robert Bragg <robert@linux.intel.com>
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Remove the symbols that are now in cogl-path (where cogl-path.symbols
already include), and add the symbols that were added to the Cogl API.
Also add internal symbols as required by cogl-path and cogl-pango.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
The DriverCallback is a function that is defined by the Windows SDK 8.0+
headers, which was initially used for device driver development. The use
of DriverCallback would cause a clash, causing things to break when built
with newer Windows SDKs, so rename DriverCallback to CoglDriverCallback to
avoid this problem.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
To help facilitate integration with third party frameworks this exposes
the EGL context and display to applications as well as the GLX context.
(Note that the GLX display is already available via
cogl_xlib_renderer_get_display())
This adds a new top-level <cogl/cogl-glx.h> header that needs to be
included explicitly to access the glx specific api.
Anyone using these apis will be responsible for checking that Cogl
is indeed using EGL or GLX by calling cogl_renderer_get_winsys_id()
This will enable GStreamer, for example, to be able to create a GL
context that shares resources with Cogl's context.
https://bugzilla.gnome.org/show_bug.cgi?id=724992
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This splits out the GLeglImageOES define in cogl-egl.h into a private
cogl-egl-private.h header and updates the guards in cogl-egl.h to be
consistent with other top-level headers where we need to be careful
about how __COGL_H_INSIDE__ is defined and undefined, esp when the
gobject introspection scanner is running.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This ensures we use EGLNativeWindowType and EGLNativeDisplayType
everywhere instead. The previous names come from EGL 1.2 but it seems
reasonable to require more recent EGL versions. If someone wanted to add
compatibility for EGL 1.2 later it would be straightforward to define
the new names to the old.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
SDL2 supports selecting between full OpenGL or OpenGL ES 1/2 but our
selection code was written before SDL 2.0 was officially released and
since then a new SDL_GL_CONTEXT_PROFILE_MASK attribute was added and
we have to explicitly set the SDL_GL_CONTEXT_MINOR_VERSION attribute.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This adds a new COGL_FEATURE_ID_BUFFER_AGE feature id that can be used
to determine if cogl_onscreen_get_buffer_age() will ever return an age
other than 0. This should be used instead of querying the winsys feature
via cogl_clutter_winsys_has_feature().
Reviewed-by: Neil Roberts <neil@linux.intel.com>
We have an #ifdef EGL_WL_bind_wayland_display guard in
cogl-winsys-egl-feature-functions.h to avoid referencing wayland types
when the EGL header doesn't know about them, but somehow this guard also
ended up around the KHR_create_context and EXT_buffer age features too
even though they aren't wayland specific.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This winsys feature flag is exposed via the deprecated
cogl_clutter_winsys_has_feature function and Clutter is curently
relying on it. Previously the EGL winsys was only setting the internal
COGL_EGL_WINSYS_FEATURE_BUFFER_AGE flag and there was no mapping to
the public flag. Therefore the feature would only be used on GLX. This
patch just adds the mapping.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 8418e98b2b1b25515a961ad1bb9f0c4770d6eb1d)
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 7bc7ea4cb5e8134a3aeed9615477f4152b558509)
Conflicts:
cogl/winsys/cogl-winsys-egl-kms.c
Instead of spinning forever, do a roundtrip, which guarantees that the
global messages have been sent by the time we read the sync message.
If the proper globals aren't initialized yet, error out immediately. This
does mean that users can't use CoglOnscreen with foreign custom surface
types without xdg_shell, but when a use case comes for this, we'll
investigate then...
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit af9057d35f331e2c9509958fb40627917c477b80)
Since the Cogl 1.18 branch is actively maintained in parallel with the
master branch; this is a counter part to commit 1b83ef938fc16b which
re-licensed the master branch to use the MIT license.
This re-licensing is a follow up to the proposal that was sent to the
Cogl mailing list:
http://lists.freedesktop.org/archives/cogl/2013-December/001465.html
Note: there was a copyright assignment policy in place for Clutter (and
therefore Cogl which was part of Clutter at the time) until the 11th of
June 2010 and so we only checked the details after that point (commit
0bbf50f905)
For each file, authors were identified via this Git command:
$ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD
We received blanket approvals for re-licensing all Red Hat and Collabora
contributions which reduced how many people needed to be contacted
individually:
- http://lists.freedesktop.org/archives/cogl/2013-December/001470.html
- http://lists.freedesktop.org/archives/cogl/2014-January/001536.html
Individual approval requests were sent to all the other identified authors
who all confirmed the re-license on the Cogl mailinglist:
http://lists.freedesktop.org/archives/cogl/2014-January
As well as updating the copyright header in all sources files, the
COPYING file has been updated to reflect the license change and also
document the other licenses used in Cogl such as the SGI Free Software
License B, version 2.0 and the 3-clause BSD license.
This patch was not simply cherry-picked from master; but the same
methodology was used to check the source files.
Not doing so leads to the following error, if stddef.h is not included
indirectly through EGL headers:
| libdrm/drm.h:132:2: error: unknown type name 'size_t'
| size_t name_len; /**< Length of name buffer */
Signed-off-by: Andreas Oberritter <obi@saftware.de>
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 55c82476a93366a3e7d1a2537fccc3a7aab87c66)
The _cogl_egl_texture_2d_new_from_image function has a CoglError
argument which implies that it is unlike the other texture
constructors and returns errors immediately rather than having a
delayed-allocation mechanism. cogl_wayland_texture_2d_new_from_buffer
which calls it is also like this. We can't rely on delayed-allocation
semantics for this without changing the applications because the
texture needs to be allocated before the corresponding EGLImage is
destroyed. This patch just makes it immediately allocate.
A better patch might be to remove the error argument to make it
obvious that there are delayed-allocation semantics and then fix all
of the applications.
This was breaking Cogland and Mutter.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 0206c03d54823b2f6cbb2aa420d07a4db9bcd8a3)
The previous implementation was dereferencing the sample pointer in
order to get the offset to subtract from the member pointer. The
resulting value is then only used to get a pointer to the member in
order to calculate the offset so it doesn't actually read from the
memory location and shouldn't cause any problems. However this is
probably technically invalid and could have undefined behaviour. It
looks like clang takes advantage of this undefined behaviour and
doesn't actually offset the pointer. It also generates a warning when
it does this.
This patch splits the _cogl_container_of macro into two
implementations. Previously the macro was always used in the list
iterator macros like this:
SomeType *sample = _cogl_container_of(list_node, sample, link)
Instead of doing that there is now a new macro called
_cogl_list_set_iterator which explicitly assigns to the sample pointer
with an initial value before assigning to it again with the real
offset. This redundant initialisation gets optimised out by compiler.
The second macro is still called _cogl_container_of but instead of
taking a sample pointer it just directly takes the type name. That way
it can use the standard offsetof macro.
https://bugzilla.gnome.org/show_bug.cgi?id=723530
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 1efed1e0a2bce706eb4901979ed4e717bb13e4e2)
The declaration of INTEL_swap_event was treating winsys features as
if they were a bitfield, but they aren't. The end result was that
instead of reporting two features when INTEL_swap_event is present,
we report none.
https://bugzilla.gnome.org/show_bug.cgi?id=719741
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Since 248a76f5eac7e5ae4fb45208577f9a55360812a7 cogl.h can no longer be
included in internal source files so the WGL winsys was no longer
compiling.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 91af97a2a27ab5ad3e7eaabebd03503b685d4d42)
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 following changes are made to the documentation for CoglTexture:
• The description of the default value for the components property is
changed to say that it is always RGBA for textures created by the
‘_with_size’ textures. Previously it said that the default is based
on the pixel format used the first time data is set on the texture,
but this is only true if the data is set using a constructor.
• Added documentation for the CoglTextureComponents enum.
• Changed it to say that it _specifies_ what components are required
for sampling rather than determinging [sic] them.
• Added ‘Since: 1.18’ to
cogl_texture_{set,get}_{components,premultiplied}
• Changed the since tag for CoglTextureError from 2.0 to 1.8.
• Added documentation for COGL_TEXTURE_ERROR_{FORMAT,TYPE}.
• Added the following to the cogl2-sections.txt file:
COGL_TEXTURE_ERROR
CoglTextureError
cogl_texture_allocate
cogl_texture_set_components
cogl_texture_get_components
cogl_texture_set_premultiplied
cogl_texture_get_premultiplied
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 2f12c4329c519fa14b927b2dcd708dddcc903c32)
Previously when a pipeline is added to the cache it would never be
removed. If the application is generating a lot of unique pipelines
this can end up effectively leaking a large number of resources
including the GL program objects. Arguably this isn't really a problem
because if the application is generating that many unique pipelines
then it is doing something wrong anyway. It also implies that it will
be recompiling shaders very often so the cache leaking will likely be
the least of the problems.
This patch makes it keep track of which pipelines in the cache are in
use. The cache now returns a struct representing the entry instead of
directly returning the pipeline. This entry contains a usage counter
which the pipeline backends can use to mark when there is a pipeline
alive that is using the cache entry. When the hash table decides that
it's a good time to prune some entries, it will make a list of all of
the pipelines that are not in use and then remove the least recently
used half of the pipelines. That way it is less likely to remove
pipelines that the application is actually regenerating often even if
they aren't in use all of the time.
When the cache is pruned the hash table makes a note of how small the
cache could be if it removed all of the unused pipelines. The hash
table starts pruning when there are more entries than twice this
minimum expected size. The idea is that if that case it hit then the
hash table is more than half full of useless pipelines so the
application is generating lots of redundant pipelines and it is a good
time to remove them.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit c21aac22992bb7fef5a8d0913130b8245e67f2eb)
Conflicts:
cogl/driver/gl/cogl-pipeline-fragend-glsl.c
cogl/driver/gl/cogl-pipeline-progend-glsl.c
cogl/driver/gl/cogl-pipeline-vertend-glsl.c
cogl/driver/gl/gl/cogl-pipeline-fragend-arbfp.c
This fixes the cogl_texture_get_components() prototype to have a return
type of CoglTextureComponents instead of CoglBool which was probably a
copy and paste error.
(cherry picked from commit 55b09f8a939db71ee5ff41afa0ed08cbe937a4ec)
This updates the cogl_texture_rectangle_new_with_size() api in line with
master to be consistent with other texture constructors. This removes
the internal_format and error arguments and allows the texture to be
allocated lazily which means the texture can be configured with apis
like cogl_texture_set_components() and cogl_texture_set_premultiplied()
before it is allocated.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
test-path for example uses COGL_ENABLE_EXPERIMENTAL_2_0_API to access
the 2.0 CoglPath api but also uses deprecated framebuffer api such as
cogl_push/pop_framebuffer. Similarly clutter-backend.c builds with
COGL_ENABLE_EXPERIMENTAL_2_0_API and uses cogl_set_framebuffer().
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This moves the framebuffer stack apis out of cogl-framebuffer.c into
cogl/deprecated/cogl-framebuffer-deprecated.c so cogl-framebuffer.c is
more in-line with the master branch to ease cherry picking patches.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This moves all of the automagic texture constructor prototypes from
cogl-texture.h into a new deprecated/cogl-auto-texture.h file. This also
moves cogl_texture_new_from_sub_texture() into
deprecated/cogl-auto-texture.c
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Texture allocation is now consistently handled lazily such that the
internal format can now be controlled using
cogl_texture_set_components() and cogl_texture_set_premultiplied()
before allocating the texture with cogl_texture_allocate(). This means
that the internal_format arguments to texture constructors are now
redundant and since most of the texture constructors now can't ever fail
the error arguments are also redundant. This now means we no longer
use CoglPixelFormat in the public api for describing the internal format
of textures which had been bad solution originally due to how specific
CoglPixelFormat is which is missleading when we don't support such
explicit control over the internal format.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 99a53c82e9ab0a1e5ee35941bf83dc334b1fbe87)
Note: there are numerous API changes for functions currently marked
as 'unstable' which we don't think are in use by anyone depending on
a stable 1.x api. Compared to the original patch though this avoids
changing the cogl_texture_rectangle_new_with_size() api which we know
is used by Mutter.
This introduces the internal idea of texture loaders that track the
state for loading and allocating a texture. This defers a lot more work
until the texture is allocated.
There are several intentions to this change:
- provides a means for extending how textures are allocated without
requiring all the parameters to be supplied in a single _texture_new()
function call.
- allow us to remove the internal_format argument from all
_texture_new() apis since using CoglPixelFormat is bad way of
expressing the internal format constraints because it is too specific.
For now the internal_format arguments haven't actually been removed
but this patch does introduce replacement apis for controlling the
internal format:
cogl_texture_set_components() lets you specify what components your
texture needs when it is allocated.
cogl_texture_set_premultiplied() lets you specify whether a texture
data should be interpreted as premultiplied or not.
- Enable us to support asynchronous texture loading + allocation in the
future.
Of note, the _new_from_data() texture constructors all continue to
allocate textures immediately so that existing code doesn't need to be
adapted to manage the lifetime of the data being uploaded.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 6a83de9ef4210f380a31f410797447b365a8d02c)
Note: Compared to the original patch, the ->premultipled state for
textures isn't forced to be %TRUE in _cogl_texture_init since that
effectively ignores the users explicitly given internal_format which was
a mistake and on master that change should have been made in the patch
that followed. The gtk-doc comments for cogl_texture_set_premultiplied()
and cogl_texture_set_components() have also been updated in-line with
this fix.
When reading a texture back by first wrapping it as an offscreen
framebuffer and using _read_pixels_into_bitmap() we now make sure the
offscreen framebuffer has an internal format that matches the
meta-texture being read not that of the current sub-texture being
iterated. In the case of atlas textures the subtexture is a shared
texture whose format doesn't reflect the premultipled alpha status of
individual atlas-textures, nor whether the alpha component is valid.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 6ee425d4f10acd8b008a2c17e5c701fc1d850f59)
CoglPixelFormat is not a good way of describing the internal
format of a texture because it's too specific given that we don't
actually have exact knowledge of the internal format used by the driver.
This makes cogl_texture_get_format private and in the future we'll
provide a better way of querying the channels and their precision.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit ffde82981f22bd0185a7f33e1e6e1479f4c295b8)
Note: Since we can't break API compatibility on the 1.x branch this adds
a cogl/deprecated/cogl-texture-deprecated.c file with a
cogl_texture_get_format() wrapper around the private api. This also
moves the cogl_texture_get_rowstride() and cogl_texture_ref/unref()
functions that were previously deprecated into cogl-texture-deprecated.c
This defers checking the internal format and whether accelerated
migration is supported until allocating the texture.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 83b05cbe3969789bc3ec78480c0937a6722efbf1)
Instead of throwing a CoglError exception if an application tries to
allocate a zero size atlas texture this make that a programmer error
instead.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit d3eaeedc86d408669b81d6c43ef2b0ab9d859c85)
The plan is to defer a lot more work in creating a texture until
allocation time. This means that for some texture backends we might not
know until after allocation whether the texture is sliced or can support
hardware repeating. This makes sure we trigger an allocation if either
of these are queried.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 4868582812dbcd5125495b312d858f751fc31e9d)
The plan is to defer a lot more work in creating a texture until
allocation time. This means we wont be able to assume that all textures
being used to render must have already been allocated when data was
specified.
The latest point at which we will generally require a texture to be
allocated will be when we need to know the underlying GL handle for a
texture and so this updates cogl_texture_get_gl_texture() to ensure the
texture is allocated.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 59f6fefc37524f492512a71b831760a218d9bb95)
The plan is to defer more of the work for creating a texture until
allocation time, but that means we won't be able to always assume
we can query the size of a texture when creating an offscreen
framebuffer from a texture (consider for example using
_texture_new_from_file() where the size isn't known until the file has
been loaded). This defers needing to know the size of the texture
underlying an offscreen framebuffer until calling
cogl_framebuffer_allocate().
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 9688e7dc1eeae3144729dfd4a4bf409620346bf4)
This ensures framebuffers are implicitly allocated when querying the
width, height or viewport width/height if the framebuffer's size is
currently unknown. The plan is to allow texture backends to defer
calculating the size of textures until they are allocated which in turn
means we won't know the size of offscreen framebuffers until the texture
has been allocated. Potentially we could be more specific about this in
the future and only ensure the texture is allocated, but for now it will
be simplest to just ensure the framebuffer is allocated.
Note: in the case of onscreen buffers which are always initialized with
a requested size we are careful to avoid triggering an allocation when
this is queried otherwise we will see recursion when the winsys code
queries the requested size during allocation.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit f4b612f1b75e043f1852b9a32368cc37ab89308b)
Since we are planning on deferring more texture allocation work this
makes sure we don't query whether a texture is sliced until we know it
has been allocated.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit b742638a1ce581f5a2c9f15907361c3b0c1b178c)
This removes cogl_framebuffer_get_color_format() since the actual
internal format isn't strictly controlled by us. CoglFramebuffer::format
has been renamed to ::internal_format to make it clearer that it only
really represents the premultiplication status.
The plan is to make most of the work involved in creating a texture
happen lazily when allocating so this patch also changes
_cogl_framebuffer_init() to not take a format argument anymore since we
won't know the format of offscreen framebuffers until the framebuffer is
allocated, after the corresponding texture has been allocated. In the
case of offscreen framebuffers we now update the framebuffer
internal_format during allocation.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 8cc9e1c8bd2fac8b2a95087249c23c952d5e379f)
Note: Since we can't break API compatibility on the 1.x branch this
actually keeps the cogl_framebuffer_get_color_format() api but moves it
into a new deprecated/cogl-framebuffer-deprecated.c file and it now
returns the newly name ::internal_format.
The bug that prevented MESA_copy_sub_buffer to work for swrast /
llvmpipe got fixed in mesa 10.1 git so enable it for mesa 10.1+.
https://bugzilla.gnome.org/show_bug.cgi?id=721450
When landing the patch, it was tweaked to #include "cogl-version.h" to
avoid a compiler warning about COGL_VERSION_ENCODE being implicitly
defined. -- Robert Bragg
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit e7e216b1d3d151acf3fed619bd759692a989b4b4)
Since we now have more time to ensure that Clutter is updated to check
for the now separate cogl-path package as part of its build
configuration we are now making the package split, in line with Cogl
master.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This makes it so that cogl-sdl.h is a top-level header no longer
automatically included by cogl.h. This avoids lots of warnings building
the conformance tests and examples due to SDL.h warning when
__STRICT_ANSI__ isn't defined.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit f7536985437dc85c26b33d1bbe1b7f3d4b32476a)
This means that we can't cache the journal read_pixels optimization.
https://bugzilla.gnome.org/show_bug.cgi?id=719582
Reviewed-by: Neil Roberts <neil@linux.intel.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 550bae22d20c8d6d7cf1d090faa9c91619594077)
This reverts commit bc41489336.
The reason this was causing problems for Clutter is that it defines
COGL_ENABLE_EXPERIMENTAL_2_0_API which is meant to cause the Cogl
headers not to declare the deprecated API. The reverted patch moved
some additional clipping API to a deprecated header which was
previously being used by Clutter. Clutter was still successfully
compiling but with some warnings for the missing function
declarations. However when the binary is run the clipping would get
completely messed up because it would assume all of the arguments to
the functions are integers instead of floats and the wrong values
would be passed.
Clutter now has commit to make it use the 2.0 API instead of the
deprecated functions so the revert is no longer necessary.
https://git.gnome.org/browse/clutter/commit?id=705640367a5c2ae21405806bfa
Reviewed-by: Robert Bragg <robert@linux.intel.com>
When projecting the bounding rectangle of a primitive it was using the
modelview matrix twice instead of the modelview and projection
matrices so it was coming out with garbage.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 7e1f05c84013bb91248d691091df00f4f634c6cf)
This reverts commit ae9cd7ca01.
Pushing this for now so we can get gnome-shell working again without
memory corruption. Let's push a proper fix later for everybody.
This was added in 361bd516f3 late during the 1.10 cycle to
contain experimental functions that we should never have made public.
The plan was to remove them once we started working on 1.12 but it
looks like we never got around to doing that. Better late than never!
The header for the file was already removed in 7365c3aa77.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
There used to be a function called cogl_clip_stack_save in the public
API which was used when temporarily switching to an offscreen buffer
to save the clip state. This is no longer necessary because each
framebuffer has its own clip stack anyway so the function was removed
in master. However the code to maintain the stack of stacks was
retained. This patch removes it in an effort to simplify the code.
On the 1.18 branch this function is deprecated and the documentation
says that it does nothing. However that is incorrect because it does
actually the push clip stack. I think it would be safe to backport
this patch to the 1.18 branch and actually make it do nothing like it
is documented to do.
https://bugzilla.gnome.org/show_bug.cgi?id=719546
(cherry picked from commit 8655027fdcf03b02fcbbb02d179a0a88ed79c5b3)
This patch has some extra changes while backporting to the 1.18
branch. Here the cogl-clip-state file still contained some deprecated
functions. Instead of deleting the file completely it has been moved
to the deprecated folder. The declarations for this functions have
been moved from cogl1-context.h to a new deprecated/cogl-clip-state.h
header.
Conflicts:
cogl/Makefile.am
cogl/cogl-clip-state.c
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Adds cogl_wayland_texture_set_region_from_shm_buffer which is a
convenience wrapper around cogl_texture_set_region but it uses the
correct format to copy the data from a Wayland SHM buffer. This will
typically be used by compositors to update the texture for a surface
when an SHM buffer is attached. The ordering of the arguments is based
on cogl_texture_set_region_from_bitmap.
Based on a patch by Jasper St. Pierre.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit c76c1d136d2cac7f3d1331a4d1dc0dd0f06e812c)
Conflicts:
examples/cogland.c
This patch was accidentally added before it had any review and without
first going through master. Master now has a replacement patch with
some modifications. That will be cherry-picked to the 1.18 branch in a
subsequent commit.
This reverts commit af480a2b8b.
Previously the private feature flags were stored in an enum and we
already had 31 flags. Adding the 32nd flag would presumably make it
add -2³¹ as one of the values which might cause problems. To avoid
this we'll just use an fixed-size array of longs and use indices for
the enum values like we do for the public features.
A slight complication with this is in the CoglDriverDescription where
we were previously using a static intialised value to describe the set
of features that the driver supports. We can't easily do this with the
flags array so instead the features are stored in a fixed-size array
of indices.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit d94cb984e3c93630f3c2e6e3be9d189672aa20f3)
Conflicts:
cogl/cogl-context-private.h
cogl/cogl-context.c
cogl/cogl-private.h
cogl/cogl-renderer.c
cogl/driver/gl/cogl-pipeline-opengl.c
cogl/driver/gl/gl/cogl-driver-gl.c
cogl/driver/gl/gl/cogl-pipeline-progend-fixed-arbfp.c
cogl/driver/gl/gles/cogl-driver-gles.c
cogl/driver/nop/cogl-driver-nop.c
This fixes the build with --enable-introspection. I'm not sure why
g-ir-scanner seems to parse all public headers in isolation instead of
being able take a more limited list of top-level public headers and
automatically parse all necessary #include directives but this means we
have to special case how we define and undefine __COGL_H_INSIDE__ to
subvert the guards we have in place for detecting misuse of the headers.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit e0b2255876c1cf11d124d5ae37cbe9a6e43777f1)
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
This patch doesn't look right because now nothing will ever set
clear_clip_dirty = TRUE. Presumably that would mean that if a
rectangle is drawn and then the journal is flushed before the
framebuffer is read, then it would think it could return the clear
color even though it shouldn't.
Perhaps a better approach would be to make a second version of
_cogl_framebuffer_mark_mid_scene that doesn't set the clear_clip_dirty
flag and call that from the journal instead. As this patch was pushed
without review and without first going into the master branch I think
it makes sense to just revert it and apply a new version to master.
This reverts commit 3eb63f67a3.
Leaving the clip bounds untouched means that it will retain the stale value
of whatever it was when we last had a clip; reset it so that it contains the
full framebuffer contents instead.
https://bugzilla.gnome.org/show_bug.cgi?id=712562
Add framebuffer methods cogl_framebuffer_[gs]et_depth_write_enabled()
and backend bits to pass the state on to glDepthMask().
This allows us to enable or disable depth writing per-framebuffer, which
if disabled saves us some work in glClear(). When rendering, the flag
is combined with the pipeline's depth writing flag using a logical AND.
Depth writing is enabled by default.
https://bugzilla.gnome.org/show_bug.cgi?id=709827
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 71406438c5357eb4e0ef03e940c5456a536602a0)
Depending on what version of Mesa you have then eglQueryWaylandBuffer
may take a wl_buffer or wl_resource argument and the EGL header will
only forward declare the corresponding type.
The use of wl_buffer has been deprecated and so internally we assume
that eglQueryWaylandBuffer takes a wl_resource but for compatibility we
forward declare wl_resource in case we are building with EGL headers
that still use wl_buffer.
https://bugzilla.gnome.org/show_bug.cgi?id=710926
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 9bd1ee544667cfe7ecae479ec7f778446dd8f326)
cogl_is_atlas_texture is supposed to be exported from the DLL/.so, so
update the cogl.symbols file to ensure this.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 13e037f096de5742db769500b4c0018249d8f8e4)
This makes cogl_framebuffer_set_color_mask immediately bail out if the
given mask equals the framebuffer's current mask, since the cost of
flushing the journal and flushing the gl state will hugely outweigh the
cost of the check.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 925174d99df7f1f4b11098e748bcc23eaa396a21)
This updates the definition of _COGL_STATIC_ASSERT to just use
_Static_assert if available or be NOP if not. We no longer worry about
supporting static assertions with older compilers. This fixes some
verbose warnings that newer compilers were giving with the old typedef
based static assertion method.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 645e3607ea7f210d6dcb9d217204790051de7c82)
When a pipeline is notified of a change we now make sure to notify all
progends of that change not just the progend directly associated with
that pipeline. A pipeline can have private state associated with it from
multiple progends because descendants will always try and cache state on
ancestors to maximize the chance that the state can later be re-used.
Descendants may be using different progends than the ancestors that they
cache state with.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 873939a18934185fb3c9c84c373cb86d1278add7)
This avoids including wayland-server.h in cogl-display-private.h which
avoid lots of compile time warnings that wl_buffer is deprecated. The
problem is that wl_buffer is also exposed in the client side headers and
isn't deprecated for clients. If we end up including the client and
server headers in the same compilation unit we can get conflicting
definitions.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 60fcd9c87cf5d8ae8c41134217ee0e1fa2fbd46e)
wl_buffer has been deprecated in the server API and instead
compositors should be directly passing the wl_resource pointer to
eglQueryWaylandBuffer.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit f13278bcf3f1475b7afc7d55a5218f409d119658)
Commit 50d1285b updated the wl_shm enum values but left
one out. Update it to fix the build on big-endian.
https://bugzilla.gnome.org/show_bug.cgi?id=710135
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 9246286846d0428b03e646b2f5ec14f0eff4edc6)
This makes a start on clearly factoring the deprecated code of core Cogl
into a deprecated/ directory. Ideally we want to get to the point where
all code here can be re-worked in terms of the public 2.0 api so that it
can be kept indefinitely for cogl 1.x api compatibility without
cluttering the core code base itself. If we can do this then we can
avoid maintaining the Cogl 1.x branches in parallel with master which
would reduce the maintenance effort.
Commit 7b25c8f5ca mistakenly added a reference to a
COGL_GTYPE_DEFINE_CLASS() macro that does not yet exist so this patch
removes it.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
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)
Since e07d0fc7441 the COGL_DRIVER environment variable was able to
override the application's driver selection. This doesn't seem like a
good idea because if the application is specifying a driver explicitly
then presumably it can not work with any other driver. This patch
changes it so that if a driver is selected in the configuration and by
the application then they must match, otherwise it will fail with a
CoglError.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 4e0942d74c8d69aa48e0176bfecf27f64a950d0f)
Only COGL_RENDERER_CONSTRAINT_SUPPORTS_COGL_GLES2 affects the driver
selection and all of the the other constraints are only relevant to
the winsys selection. However Cogl was trying to apply all of the
constraints to the driver selection which meant that if any other
constraint was specified then it would always fail. This patch makes
the driver selection filter out all other constraints based on a mask
defined in cogl-renderer-private.h.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit f07febc8913b97fb828e7f2cc2857813af2d3657)
Currently it's only possible to set an onscreen template on a
CoglDisplay by passing a template to cogl_display_new(). For
applications that want to deal with fallbacks then they may want to
replace the onscreen template so this adds a
cogl_display_set_onscreen_template() function.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit f307c9545791dae5472a9568fef6b31b3bf52854)
This updates the static assertion in cogl-renderer.c to only check that
the flags will fit in 32 bits instead of asserting the type has the same
size as an unsigned long.
(cherry picked from commit c6893fa3c9eda0f13b79d3a1fc03f8b79c42a8f6)
WebGL doesn't allow you to separately attach buffers to the
STENCIL_ATTACHMENT and DEPTH_ATTACHMENT framebuffer attachment points
and instead requires you to use the DEPTH_STENCIL_ATTACHMENT whenever
you want a depth and stencil buffer.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit ec7b6360c9c4e45e0b113f9dca7bb1502e7e93be)
This adds a COGL_DRIVER_WEBGL enum and a new driver description for
webgl in cogl-renderer.c. This also adds a COGL_DRIVER_FLAG_OPENGL_WEB
driver flag and a HAVE_COGL_WEBGL define which we can start to use to
handle special cases where webgl differs from gles2.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 2c167b7a4ee56241827322bbe7cb287b0628437c)
This adds a table of driver descriptions to cogl-renderer.c in order of
preference and when choosing what driver to use we now iterate the table
instead of repeating boilerplate checks. For handling the "default driver"
that can be specified when building cogl and handling driver overrides
there is a foreach_driver_description() that will make sure to iterate
the default driver first or if an override has been set then nothing but
the override will be considered.
This patch introduces some driver flags that let us broadly categorize
what kind of GL driver we are currently running on. Since there are
numerous OpenGL apis with different broad feature sets and new apis
may be introduced in the future by Khronos then we should tend to
avoid using the driver id to do runtime feature checking. These flags
provide a more stable quantity for broad feature checks.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit e07d0fc7441dddc3f0a2bc33a6a37d62ddc3efc0)
Add API to allow complex applications using the KMS backend
to go almost straight to direct configuration (which is not possible
because Cogl needs to be in charge of buffers and FB objects).
https://bugzilla.gnome.org/show_bug.cgi?id=705837
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 52fb8e1c33d8c83c731c05cee767928fdd5991d7)
This now updates the guard to ignore whether
COGL_ENABLE_EXPERIMENTAL_2_0_API is defined since we need to work for
clutter which does define that, as well as clutter users that don't.
cogl.h was meant to include cogl-path.h so long as
COGL_ENABLE_EXPERIMENTAL_2_0_API is not defined but it was actually
requiring it to be defined which was breaking clutter applications.
The eglTerminate code in Mesa will try to destroy the wl_drm object
which involves using data structures in the wl_display. Cogl was
disconnecting the display before calling eglTerminate which meant that
this would end up accessing potentially garbage data.
https://bugzilla.gnome.org/show_bug.cgi?id=705591
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 358d85f35d0fe36698b758163729c4551fe5fd25)
The deprecation macros, which expand to __declspec (deprecated) on Visual
Studio, is expected to be before the return type of the function which
is annotated by them, and having the deprecation macros there is also
accepted by GCC as well.
This will fix the builds of all applications/libraries using Cogl under
Visual Studio,
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Add and rename the symbols that have been added/renamed during the
development cycle, and also remove those that have been dropped during the
process.
Also continue the quest of purging from the exports lists of the internal
APIs as some of those are no longer referenced by other Cogl components.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Unfortunately named initializers is a feature that is not supported by
all compilers (such as pre-2013 Visual Studio) so avoid using that.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 5a5659f9861dfe7a4808f2a5284de8fe6175bec2)
Use the HAVE_STRINGS_H check before we include strings.h, as it is not
universally available.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit ff65144c84a16f9470d3f3931dc91cc9a6ef5938)
...For both the regular WGL winsys and SDL winsys builds, that
COGL_HAS_GTYPE_SUPPORT is defined, so that the builds won't break as
Visual Studio builds do assume an existing installation of GLib.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit ef41aea2796315a47693bf278f08b41ca6703566)
Full GL treats the position attribute specially and requires that it
must be bound to generic attribute location 0 unlike GLES 2.0 or
GL 3.2 core. We now make sure to unconditionally bind the
cogl_position_in attribute to location 0 before linking any glsl program
in cogl.
For reference the relevant part of the GL 3.0 spec that covers these
semantics is Section 2.7 "Vertex Specification" pg 27
After this change there was one remaining problem in
test-custom-attributes where the test_short_verts() test was using its
own "pos" attribute instead of cogl_position_in and so cogl wasn't able
to ensure it would be bound to location 0.
This updates the test to use cogl_position_in but to work around the
fact that glVertexPointer doesn't support UNSIGNED_SHORT components we
force the test to use the glsl backend by setting a shader snippet on
the pipeline.
https://bugs.freedesktop.org/show_bug.cgi?id=67548
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 992ef7b3b49ebb56adde2133bb36330c04133a3f)
