We have to use void in a function declaration if we want no function
parameters. Using just empty parenthesis means the function takes an
unspecified number of parameters.
We had it correct for most declarations and this series fixes it for
the rest.
Summary:
Evas GL maintains internal resource (XWindow, EGL Window Surface, EGL Context)
per thread to be used for make current when indirect rendering is used.
Currently this internal resource is created regardless of current rendering mode,
and always created when a new Evas GL thread is created by the application.
Internal resource created in a new thread is not freed until evas shuts down
in the main thread, so this causes memory/fd leak.
This can be fixed by creating internal resource only in necessary cases (ie. indirect rendering),
and adding tls resource destructor to be called when thread exits.
There was a terribly complex mechanism to call this function
from the gl_x11 engine to gl_common (evas gl core)... and it
simply didn't work because the function pointer would be NULL.
Before this patch, those EGL/EvasGL functions can not work
without a current context. But EGL does not require any
current context for those to work, or at least, this should
be left to the driver to decide.
Evas GL was only able to get a pointer to the display
if a context was current.
The display pointer should be infered from Evas_GL unless
we can find a current display. EGL does not require a
context to be current in most of these function calls.
This should bring evasgl a little bit closer to EGL in terms
of behaviour (those are EGL-only extensions, btw).
Thanks @spacegrapher for the quick review
@fix
When glClear is called in direct rendering move (DR), we usually
have to skip the call altogether because clearing out transparency
would erase the pixels in the evas backbuffer. This means Evas
would not be able to blend an RGBA GLView on top of other objects.
But COPY mode should allow Evas GL to poke holes in a window
backbuffer.
Thanks @spacegrapher for the review :)
NOTE: Elm GLView also needs to pass the render op to its Evas.Image.
@fix
evas_gl_native_context_get is an internal function
passed around from an evas engine to evas_gl so that we can
implement evasglCreateImageForContext without exposing
any evas engine internal structure to evas_gl.
It's all a ittle bit ugly but the previous solution with
dlsym(DEFAULT) didn't work.
Summary:
When either FBO or EGL image from texture extension is not supported,
we can use pixmap surface as indirect surface fallback.
Since native pixmaps have (0,0) in the upper left while
FBOs have (0,0) in the lower left, we should invert the y coordinates
when native pixmaps are used as the render target.
To accomodate run-time y-invert check we add a new callback for
EVAS_NATIVE_SURFACE_EVASGL type.
Reviewers: cedric, jpeg
Subscribers: wonsik, mer.kim, cedric
Summary:
Now we can support EVAS_GL_GLES_1_X version for GLX backend
with both direct and indirect rendering.
Refactored api get functions to have similar code path for each version.
@feature
Test Plan: Evas GL test case
Reviewers: cedric, jpeg
Subscribers: cedric, mer.kim, mythri, wonsik
Differential Revision: https://phab.enlightenment.org/D2342
Summary:
EVAS_NATIVE_SURFACE_EVASGL uses egl image, but egl image is
not supported in glx backend, so use texture instead.
Test Plan: Local tests on pc
Reviewers: jpeg
Subscribers: cedric, mer.kim, mythri, wonsik
Differential Revision: https://phab.enlightenment.org/D2174
jpeg: fixed casts
Summary:
Fix build errors for glx backend made from previous commit
Revert parameter naming
Test Plan: Local Evas GL tests for 1.1, 2.0, and 3.0
Reviewers: jpeg
Subscribers: mythri, wonsik, cedric, mer.kim
Differential Revision: https://phab.enlightenment.org/D2117
Summary:
When the context version between Evas GL and GL backend differs,
we cannot share texture between them.
So, when the driver has support for KHR_gl_texture_2D_image extension,
use EGL image to share between Evas GL and GL backend
Test Plan: Local Evas GL tests for 1.1, 2.0 and 3.0
Reviewers: jpeg
Subscribers: mythri, mer.kim, wonsik, cedric
Differential Revision: https://phab.enlightenment.org/D2115
The previous commit modifies the concept of direct rendering
vs. indirect rendering, so some runtime checks (in debug mode
only) will fail.
This commit introduces two new engine functions:
- gl_get_pixels_pre
- gl_get_pixels_post
The latter will be used in a later patch for optimization.
not changed.
Automatically fallback to indirect rendering on FBO or X11 Pixmap
if the Evas Object Image is not marked as dirty. This should
improve the performance and/or power consumption in those
rare cases where this area of the canvas needs to be redrawn
but the GL content has not changed.
@feature
Those 2 new values are here to avoid using environment variables
that have side effects on the whole application.
I'm actually wondering if we shouldn't just kill off the env
vars altogether. Also, direct override is a terrible option that
should never be used.
Memory optimization can make sense (needs more testing tho).
There was a problem when checking whether the current surface
is compatible with direct rendering. In case of client-side
rotation (it's a flag set on the surface by the app), a surface
can be directly rendered even if the rotation is not 0.
But, before this patch, it was assumed that the surface was
current. Which doesn't make sense because make_current is
called by the pixel callback, from the application, and this
happens *after* we check for direct rendering.
As a consequence, it was not possible to mix directly rendered
surfaces with FBO-based ones, and use client-side rotation.
This patch should solve that issue.
This will mark some extension functions as "safe", which means
we don't need to wrap them in order to expose them.
All the known extensions from Evas_GL_API have been marked as safe
for now.
In the future, we may encounter extensions that are not safe
out of the box, but can be wrapped. At that time, we will have
to mark them as safe but return the pointer to the wrapper instead.
Until then, only whitelisted extensions will be supported.
@feature
Add version param to context_create.
Add support for 1.1 contexts in the GL_X11 engine, and checks
for version in all other engines (return NULL).
Add API wrappers for all OpenGL-ES 1.1 APIs (normal and debug
modes).
When running in direct rendering mode, properly support partial
rendering if the extension is properly supported.
Also, fixed the SwapBufferwWithDamage rectangle coordinate bug.
It wasn't properly y-inverted before.
Evas GL direct rendering mode didn't properly take into account
the image object's clipping information and clip the region that
it was directly rendering to. Hence there were issues with the
direct rendering region drawing over the objects that are sitting
on top of it.
Also, cleaned up the direct rendering coordinate computation code
and a nasty dependency with image object that should have been
removed a long time ago. Basically the evas-gl engine was directly
accessing the image object data structure for its data when it
really should have just passed along necessary information.
Evas_GL Direct rendering is an optimization path that renders
directly to the window if conditions are met. Because evas gl
backend used to re-render the entire screen, evas_gl direct
rendering didin't have to concern with partial region rendering.
Now that partial rendering/swapping has been applied to evas gl-
backend, evas_gl direct rendering also had to take into account
clip regions. in order to properly apply it, some adjustments
were made to the engine functions and etc.
Evas engine is created per window but evas_gl engine was not properly
updating the engine info for new windows that are created. So, addressed
the design issue by passing engine_data to evas_gl engine apis..
Resource contexts/surfaces are used for creating resources within Evas_GL.
In oder to handle Evas_GL runnig from different thread than the main one,
a resource context/surface pool was used. This turned out to be unnecssary
as they are not used very frequently. So, I got rid of the pool and
made the resources create as needed.
downscaling. This makes quality much better and "at best"
equates to a 16 point sample (2x2 linear interpolation samples,
where a linear interpolation sample equates to a 2x2 sample).
This will have perfomance impact, but the quality is worth it and
makes it closer to software downscaling in quality. It supports
2x2, 2x1 and 1x2 oversampling. YUV not done, nor image mask
(font shaders not needed).
weren't set properly where if a program uses evas_gl to do GL rendering
in direct rendering mode and then use a pixmap to do native
GL rendering in the same program, native pixmap rendering would
also fall into the direct rendering path and not render anything for
image object. It's been fixed.
SVN revision: 79493
I've tested make -j 3 install and it works nicely
I've tested expedite with software and opengl xlib,
and it works. Not tested other engines, so please
report any problems (engines or other) on the ML.
TODO: examples and tests, I'll add them later
ISSUE: Eina_Unicode size check. It indirectly depends on
eina_config.h, which is created at the end of the
configure script. So its size is always 0. I don't
know how that size is used, so I can't do a lot,
for now.
SVN revision: 78895
Vincent Torri
Stefan Schmidt
Dongyeon Kim
Jean-Philippe Andre
Cedric BAIL
Cedric BAIL
Sung W. Park
Sung W. Park
Carsten Haitzler