This adds hook points to add global function and variable declarations
to either the fragment or vertex shader. The declarations can then be
used by subsequent snippets. Only the ‘declarations’ string of the
snippet is used and the code is directly put in the global scope near
the top of the shader.
The reason this is necessary rather than just adding a normal snippet
with the declarations is that for the other hooks Cogl assumes that
the snippets are independent of each other. That means if a snippet
has a replace string then it will assume that it doesn't even need to
generate the code for earlier hooks which means the global
declarations would be lost.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit ebb82d5b0bc30487b7101dc66b769160b40f92ca)
To avoid linking trouble in C++ stuff
Reviewed-By: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit b194f1bf58055ef1f5075508f19336cae648a0c8)
Conflicts:
cogl/cogl-object.h
This fixes some minor errors and warnings that were preventing Cogl
building with mingw32:
• cogl-framebuffer-gl.c was not including cogl-texture-private.h.
Presumably something else ends up including that when building for
GLX.
• The WGL winsys was not including cogl-error-private.h
• A call to strsplit in the WGL winsys was wrong.
• For some reason the test-wrap-rectangle-textures test was trying to
include the GDKPixbuf header.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 5380343399f834d9f96ca3b137d49c9c2193900a)
The version of Pango that the script downloads is using G_CONST_RETURN
in the public headers. This won't build if G_DISABLE_DEPRECATED is
enabled so instead the build script now just recommends to pass
--enable-deprecated to cogl's configure script.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 4715f0f01d4de55a9cf690f52d4da211c243565b)
Cogl now requires at least version 2.32.0 of GLib. There are no
pre-built binaries for this from tml so we have to build glib from
source. This also requires libffi. The binary packages for libffi and
zlib don't install a pc file so the script just manually generates a
fake one.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 9e47972759a5dda4c9e9bf13df3369510be0e324)
Mesa's libGLU tesselator code has had a commit on it since it was
copied into Cogl. It sounds like it fixes a potential crash so we
should probably have it in Cogl too.
http://cgit.freedesktop.org/mesa/glu/commit/?id=bfdf99d6ff64b9c2
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit c6b2429546d3ea0aa91caa47c7c90f932984ea33)
There was a missing backslash in the LDFLAGS for libcogl-pango2. This
was stopping it having the right library version information and the
library would have the wrong filename.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit cf3d2b3de84d4e1e90b83cf3f69653f38997ef97)
glMapBufferRange is documented to fail with GL_INVALID_OPERATION if
GL_MAP_INVALIDATE_BUFFER_BIT is set as well as GL_MAP_READ_BIT. I
guess this makes sense when only read access is requested because
there would be no point in reading back uninitialised data. However,
Clutter requests read/write access with the discard hint when
rendering to a CoglBitmap with Cairo. The data is new so the discard
hint makes sense but it also needs read access so that it can read
back the data it just wrote for blending.
This patch works around the GL restriction by skipping the discard
hints if read access is requested. If the buffer discard hint is set
along with read access it will recreate the buffer store as an
alternative way to discard the buffer as it does in the case where the
GL_ARB_map_buffer_range extension is not supported.
https://bugzilla.gnome.org/show_bug.cgi?id=694164
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 986675d6043e8701f2d65415cf72ffc91734debd)
The journal manually flushes its own modelview matrix state so it
needs to mark the state as dirty so that if a primitive is drawn with
the same matrix state as the last primitive it will correctly reflush
it.
https://bugzilla.gnome.org/show_bug.cgi?id=693612
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit c7290c994c742456ff0977cb394c289afb377049)
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)
For the boolean environment variables that affect the running of the
conformance tests we now explicitly check the value of those variables
so that "0", "off" and "false" (upper or lower case) will be considered
as FALSE instead of just interpreting set as TRUE and unset as FALSE. If
the value is set to something entirely spurious then we abort with a
warning message. Thanks to Artie Eoff for suggesting this change.
https://bugzilla.gnome.org/show_bug.cgi?id=693894
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 25a8cf3607a482ca390eb9841295d1b365cbe53b)
This updates the examples and test-journal which now use the _FRAME_SYNC
events to throttle rendering so that they don't install a redundant idle
handler to paint when they get a FRAME_SYNC event and instead they now
directly paint when the event is received.
(cherry picked from commit 579eb75e6ac6f50d7a9cfe5093435126158b3c96)
This lists the cogl_onscreen_add/remove_frame_callback functions and
CoglFrameClosure and CoglFrameCallback types in cogl2-sections.txt
(cherry picked from commit 6655fee97fb6bcc2a516b710cc8ca1179685cb8f)
This updates cogl-gles2-gears to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.
(cherry picked from commit 4fdb8b966ad3501842bbdff3d96b0c4e098e2646)
This updates cogl-gles2-context to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.
(cherry picked from commit 2063306645e32ceb3252ebcd2eebd33c879d7fbe)
This updates test-journal to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.
(cherry picked from commit 24e6a5376ed3982f5647e2c2df0618272c381636)
If we make this per-context and create two Cogl contexts, some types
won't re-register, and we'll be in a broken state where some types will
be considered not to be texture types.
https://bugzilla.gnome.org/show_bug.cgi?id=693696
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 567f049d20554bb8ea4e40fa5e72a9fd0bbd409e)
When Cogl is compiled with support for both the GL and GLES drivers it
only includes the GL header and not the GLES header. That means in
that case it would not compile in the code for the
GL_EXT_discard_framebuffer extension even though it could be used on
the GLES driver. This patch makes it use the standard names for the
GL_COLOR, GL_STENCIL etc names instead of the _EXT suffixed names and
manually defines them if we are using the GLES headers. That way the
discard code can be used unconditionally.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 59c30292d0f3c28d6e0e08bc5bf3b4b10545d856)
This patch just adds a call to _cogl_framebuffer_flush_state to ensure
the correct framebuffer is bound before discarding its buffers.
Previously it would presumably just discard the buffers of whatever
framebuffer happened to be used last.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 37c390a5b33d4f65ff6c834e9be2f8de716635ee)
The GLES2 spec only guarantees calling glReadPixels with GL_RGBA and
an implementation specific format. Mesa seems to now reject reading
with GL_RGB so the test had started failing. This fixes it to just
read using GL_RGBA.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 745cbcbdee0f5b4df4c6a735b03709248a551884)
test_utils_compare_pixel makes the error report slightly easier to
read because it displays the values for the whole pixel instead of
reporting that there was a difference somewhere.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit a094ac9688a5e6b53be1cd379dc045973aab2fae)
The array allocated for storing the difference flags for each layer in
cogl-pipeline-opengl.c was being cleared with the size of a pointer
instead of the size actually allocated for the array. Presumably this
would mean that if there is more than one layer it wouldn't clear the
array properly.
Also the size of the array was slightly wrong because it was allocating
the size of a pointer for each layer instead of the size of an
unsigned long.
This was originally reported by Jasper St. Pierre on #clutter.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 1e134dd7cd5317651be158a483c7cb2723ce8869)
Even if Cogl decides to set a zero timeout because there are events
queued, it still makes sense to give the winsys a chance to add file
descriptors to the list. The winsys might be relying on the list of
CoglPollFDs passed to poll_dispatch to decide whether to read from a
file descriptor and that should happen even if Cogl also woke up the
main loop because the event queue isn't empty.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 6d2f3bc4913d0f1570c09e3714ac8fe2dbfc7a03)
It is expected that cogl_sdl_idle() will be called from the
application immediately before blocking in SDL_WaitEvent. However,
dispatching the onscreen events may cause more events to be queued. If
that happens we need to make sure the blocking returns immediately.
This patch makes it post the dummy event that the application chose in
order to make that happen.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 9e34a1e8ce97b67ebb2889c622f2c9f1076b087d)
In SDL1 the event type numbers were a single byte so there were only
reserving a byte to store the application's chosen type in
CoglRenderer. However in SDL2 they are a Uint32 and SDL_USEREVENT is
0x8000 so if the application was using that then Cogl would actually
end up posting event type 0.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 39c9177776ac601a92c6f4112558464af6968ea0)
It seems like it would be quite a reasonable design for an application
to immediately paint the buffer and call swap_buffers within the
handler for the sync event. This previously wouldn't work.
When using the GLX winsys if swap_region is called then it immediately
tries to set the pending notification flag. However if this is called
from the event callback then when the callback is complete it will
clear the flag again and the pending notification will be lost. This
patch just makes it clear the pending flag before invoking the
callback so that it can be safely queued again.
With any winsys that doesn't directly handle the sync event
notification it would almost work except that it was iterating the
live list of pending events. If the callback causes another event to
be added to this list by issuing a buffer swap then the iteration
would never complete and cogl_poll_dispatch would never return. This
patch just makes it steal the list before iterating so that any
additions will be dispatched by a later call to cogl_poll_dispatch
instead.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 2263b31594900b73900d2ce22cf70c68e7e793c6)
The first hunk from commit 93b7b4c850dd928bf21ee168a95641a8d631f713
turned out to be redundant because GLX guarantees that configs returned
by glXChooseFBConfig should be sorted with non msaa configs coming
first. The second hunk is required since we use glXGetFBConfigs in that
case which doesn't sort the configs.
I had meant to drop this part of the patch before landing it but forgot.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit b19fcc1869275826e952925af922125daf8a48de)
The two SDL examples now throttle their rendering to the
COGL_FRAME_EVENT_SYNC event. Previously the examples would redraw
whenever a mouse motion event is received but now they additionally
wait for the sync event which means that if another mouse event comes
immediately after rendering the last frame it theoretically could
avoid blocking waiting for the last frame to complete. In practice
however the SDL winsys doesn't support swap events so it will get the
sync event immediately anyway, but it's nice to have the code as an
example and a test.
This patch also changes the mainloop a bit to do the equivalent steps
without the outer main loop which I think makes it a bit easier to
follow.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 97cdd832dded2ebfaa42ee4bc43319cb8648d01b)
There is no guaranty that glXGetFBConfigs will return fbconfig ordered
with non msaa config first. This patch make sure that non msaa config
get choose.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 93b7b4c850dd928bf21ee168a95641a8d631f713)
Add an API to get the current time in the time system that Cogl
is reporting timestamps. This is to be used to convert timestamps
into a different time system.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 9f3735a0c37adcfcffa485f81699b53a4cc0caf8)
This updates cogl-crate to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 47ea52774025b620258e00a32cb873674d0fc721)
This updates cogl-hello to use the new
cogl_onscreen_add_frame_callback() api to use _SYNC events for
throttling.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 06d3cb0d99944e0150e30d553d248feb5f049000)
Add a CoglFrameInfo object that tracks timing information for frames
that are drawn. We track a frame counter and frame timing information
for each CoglOnscreen. Internally a CoglFrameInfo is automatically
created for each frame, delimited by cogl_onscreen_swap_buffers() or
cogl_onscreen_swap_region() calls.
CoglFrameInfos are delivered to applications via frame event callbacks
that can be registered with a new cogl_onscreen_add_frame_callback()
api. Two initial event types (dispatched on all platforms) have been
defined; a _SYNC event used for throttling the frame rate of
applications and a _COMPLETE event used so signify the end of a frame.
Note: This new _add_frame_callback() api makes the
cogl_onscreen_add_swap_complete_callback() api redundant and so it
should be considered deprecated. Since the _add_swap_complete_callback()
api is still experimental api, we will be looking to quickly migrate
users to the new api so we can remove the old api.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 700401667db2522045e4623d78797b17f9184501)
When we block waiting for the swap, prefer doing that using
glXWaitForMsc() from OML_sync_control because that returns a system
time value for the precise time of the swap.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 1e8114aabc78b90373d3d5f3f7c0224f8786e399)
This adds a cogl_renderer_foreach_output() function that can be used to
iterate the display outputs for a particular renderer.
This also updates cogl-info to use this new api so it can dump out all
the output information.
Reviewed-by: Owen W. Taylor <otaylor@fishsoup.net>
(cherry picked from commit a2abf4c4c1fd5aeafd761f965d07a0fe9a362afc)
The CoglOutput object represents one output such as a monitor or
laptop panel, with information about attributes of the output such as
the position of the output within the global coordinate space, and
the refresh rate.
We don't yet publically export the ability to get output information but
we track it for the GLX backend, where we'll use it to track the refresh
rate.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit d7ef9d8d71488d0e6874f1ffc6e48700d5c82a31)
There is a cogl_renderer_get_n_fragment_texture_units() function which
is documented to return the number of texture units that are
accessible from a fragment program. This just directly returns the
value from GL_MAX_TEXTURE_IMAGE_UNITS which is available in either the
GLSL extensions or the ARBfp extension. Clutter-GST relies on this to
determine whether it can use a program to convert the YUV data on the
GPU.
When the GL3 driver was added in 66c9db993595b this was changed to
only query the value when the GLSL feature is available. Previously it
would always query the value when the GL or GLES2 driver is used. This
change makes sense on master because there is no API for an
application to make its own ARBfp programs so the only way to access
texture units from a program is via GLSL. However on the 1.14 branch
this patch broke clutter-gst when GLSL is disabled because it thinks
the ARBfp programs can't use multi-texturing.
This patch just changes it to also query the value when ARBfp support
is available.
Note: it's probably note a good idea to apply this patch to master,
but only to the 1.14 branch. On master the function probably needs to
be changed anyway because it is using _COGL_GET_CONTEXT().
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Similar to commit 2c0cfdefbb9d1 for the SDL2 winsys, the GLX and EGL
window systems need to bind the dummy surface or drawable when the
currently bound onscreen is destroyed so that there will always be a
valid context bound.
Previously I got the idea that this would not be necessary on GLX
because the documentation for glXDestroyDrawable states that the
drawable won't actually be destroyed if it is currently bound until it
becomes unbound. However it doesn't say what happens if the underlying
X window is also destroyed and after testing it seems this causes a
segfault in Mesa in GLX and an XError for EGLX.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 4a464eec8c5b5832b9fd6b69746ab4ab36229182)
GL_TEXTURE_MAX_LEVEL is not supported on GLES so we can't set it. It
looks like Mesa was letting us get away with this but on other drivers
it may cause errors. The enum is not defined in the GLES headers so it
was failing to compile unless the GL driver is also enabled.
The test-texture-mipmap-get-set test is now marked as n/a on GLES2
because it can't support limiting the sampled mipmaps.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit ba51c393818582b058f5f1e66cf8d13835ad10e5)
Conflicts:
tests/conform/test-conform-main.c
The GLES2 driver wasn't compiling unless the GL driver is also enabled
because some run-time conditional code was directly using GL-only
defines.
This should also fix compiling using the stock GL headers on OS X
which don't define GL_NUM_EXTENSIONS.
https://bugzilla.gnome.org/show_bug.cgi?id=692420
Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 661e1719aa0b95c409c568ec91ea52b8ff90519b)
