We should use GLESv1 functions in a GLESv1 context to scan for
GLESv1 extensions. Makes sense yeah?
This should expose the proper list... especially enabling FBO
extension when it's supported by the driver.
Summary: This fixes Coverity CID1257606 and CID1257607: Dereferencing
null return value. _evgl_tls_resource_get Can return NULL so we should
be checking that returned value before trying to use it
@fix
Signed-off-by: Chris Michael <cp.michael@samsung.com>
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.
If an app calls glDisable(SCISSORS) and uses direct rendering,
then the DR scissors were dropped and so glClear would erase
the contents of the entire canvas, instead of being restricted
to the image object.
Example scenario:
- Create a direct rendered Evas GL 'sfc' 'ctx'
- Create a PBuffer dummy surface, make it current
- Do some stuff
- Make current (NULL, NULL) to go back to no target
- Make current (sfc, ctx)
--> glClear() will not render anything on screen
Reason:
The current FBO binding is still set to the implicit FBO
bound to the PBuffer surface (it could be any surface, really).
If the node is not visible, it is not rendered, which improves performance.
@feature.
Reviewers: raster, Hermet, cedric
Reviewed By: cedric
Subscribers: cedric
Differential Revision: https://phab.enlightenment.org/D1722
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
Summary:
A little fix of copy-paste, there were problems while changing texture coordinates of indices.
@fix
Reviewers: raster, Hermet, cedric
Reviewed By: cedric
Subscribers: cedric
Differential Revision: https://phab.enlightenment.org/D1725
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
Since this struct is likely to grow in size over time, client apps
built against future versions of EFL might start indexing fields
that are not present in the current form.
Also, don't reset the struct memory as this would break
multithreaded GL applications.
While this is not exactly a fix, I'll backport this.
@fix
Summary: Evas compilation was broken for --with-opengl=es due to the
use of GL_R16 (which is not defined for EGL).
NB: This may Not be the Proper fix, but at least it compiles now.
@fix
Signed-off-by: Chris Michael <cp.michael@samsung.com>
Reviewers: raster, Hermet, cedric
Reviewed By: cedric
Subscribers: cedric
The texture used to store the depth map should be a single-channel texture.
@fix
Differential Revision: https://phab.enlightenment.org/D1713
Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>
Fixes Coverity reports:
- CID 1256183
Coverity was a bit stupid there. It knows the size of both
strings and complained about unsafe strcpy. It should have
complained about unsafe strcat instead.
OpenGL 1.2 already supports some of the features that
GLESv2 has as extensions:
- GL_EXT_read_format_bgra
- GL_EXT_texture_format_BGRA8888
- GL_EXT_texture_type_2_10_10_10_REV
Also, we need to check the proper ARB name of some extensions when
running on desktop, instead of their OES/IMG/EXT equivalent:
- GL_ARB_texture_float
- GL_ARB_texture_half_float
- GL_ARB_texture_non_power_of_two
- GL_ARB_half_float_vertex
- GL_EXT_packed_depth_stencil
The extension name is GL_ARB_texture_non_power_of_two
for desktop GL, but GL_OES_texture_npot for GLES.
We will consider the extensions compatible, I believe
the GLES version is a subset of the desktop one. Not sure
if that's 100% true.
Carefully select the requested EGL config and match it with
the available visual from X, including the following options:
- Stencil
- Depth
- MSAA
TODO: The same thing for GLX. And fix direct rendering as well.
This is a new attempt at avoiding reload of an image
that failed to load during async preload.
See 42d2f8a12b (reverted).
I still can't figure out why setting load_error does not
work as expected (E pager becomes blank).
- glGetString(GL_VERSION) should not return "OpenGL ES 3.0" because
GLESv3 is not supported yet.
- GL_EXTENSIONS should return only the list of supported extensions
--> disabled for now as the whitelist of safe extensions is way
too small.
Apps would crash if they call make current without creating
a surface in the same thread. I don't see a good reason why
we should have this a limitation.
It will be triggered when EVAS_GL_API_DEBUG is set.
Yeah, that's abusing the variable a bit, as it was intended for
GL calls only, but this is pretty harmless.
Also add string "GL_DEPTH_STENCIL".
NOTE: The draw_buffers extension might need to be checked more and
wrapped, if it can have adverse effects on how Evas works (could
it replace the default render target?).
This adds support for the following extensions:
- disjoint_timer_query
- occlusion_query_boolean
- alpha_test
- draw_buffers
- read_buffer
- read_buffer_front
- framebuffer_blit
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
The idea is that normal opengl applications might very well want to
check for an extension using the usual string and not have to do
something special just because they're using evas_gl and not egl.
Some shader files (shd) were not included in EXTRA_DIST. This didn't break
the build because the .x file was correctly generated.
I guess the missing files in previous releases also had no impact because
the .h files would be generated and shipped.
Also generate the enum automagically. New shaders need to be added
to Makefile_Evas.am.
All shaders will be in a single .x (C) file.
There shall be no more useless .h files.
This also removes the need for awk (replaced by sed and bash stuff)
Summary: This commit fixes compiler warning:
modules/evas/engines/gl_common/evas_gl_3d.c:1322:48: warning: 'ld' may
be used uninitialized in this function [-Wmaybe-uninitialized]. We
declare 'ld' as NULL now, and check it is valid before using it.
@fix
Signed-off-by: Chris Michael <cp.michael@samsung.com>
This introduces XPixmap usage for indirect rendering.
Of course this works only for the gl_x11 engine... and for
now only when using EGL... and only on some drivers...
damn limitations.
Direct rendering should work on more platforms (eg. some desktop
nvidia cards with the EGL drivers).
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).
This should add support for the following EGL extensions:
- EGL_KHR_fence_sync
- EGL_KHR_reusable_sync (eglSignalSyncKHR)
- EGL_KHR_wait_sync (eglWaitSyncKHR)
@feature
evas gl CreateImage function was assuming the current context
should be used to create an image, while the equivalent EGL function
specifically requires the context to be specified.
This also imports some definitions for CreateImage.
And fixes typo in glEGLImageTargetRenderbufferStorageOES.
This adds new functions in Evas_GL_API struct. The version
number will be bumped to 2 in a later commit.
@feature
This is a new feature allowing direct rendering even when
the view is rotated. In that case, the application is responsible
for rotating its view and rendering it properly given the object
geometry.
This implements support for the flag
EVAS_GL_OPTIONS_CLIENT_SIDE_ROTATION
@feature
When using direct rendering, glClear() should not do anything
if the ClearColor was (0,0,0,0). The application would indeed
expect a transparent output (so, see the widgets below the view),
but glClear would erase the pixels instead. So add a quick check
to skip glClear entirely in that specific case.
Summary:
When compiling for EGL, GL_LINE_SMOOTH ends up not being defined so
compile breaks. This fix just checks if GL_LINE_SMOOTH is missing and
if so it defines it.
@fix
Signed-off-by: Chris Michael <cp.michael@samsung.com>
This fix T1459. I have added an ERR to catch this kind of issue earlier.
I am wondering if that should not be even a CRI.
The reason why we do see the problem only after the introduction of the
use of Eina_Rectangle_Pool is due to how efficiently they pack data, resulting
in ressource ending up in the wrong format bucket. Nothing wrong with the
patch itself.
i found that we are not setting u and v to be smooth (linear
interpolate) for yuv reendering, even when asked. they remain at a
default "nearest". this enables linear for u and v always, meaning
even when smooth is off, we still interpolate u and v (not y), and
even when at 1:1 with no scaling u and v get interpolation for better
quality.
@fix!
We cannot use the texture to find a valid format Before the texture is
actually created. This is invalid, leads to "warning: tex is used
uninitialized' message from the compiler, and just plain wrong.
Instead, use the alpha property of the Evas_GL_Image to find the
proper texture format, Then create the texture.
@fix
Signed-off-by: Chris Michael <cp.michael@samsung.com>
so in fixing one CID for a format lookup failing and thus invalid mem
access, a possible leak was made in this case. fix that by doing
lookup before any allocation and if lookup fails, return there
this fixes CID 1230999 1230998 1230997
Cedric BAIL
Jean-Philippe Andre
Dmytro Dadyka
Chris Michael
Mun, Gwan-gyeong
Dmytro Dadyka
perepelits.m
Gwanglim Lee
Jean Guyomarc'h
ChunEon Park
ChunEon Park
Daniel Zaoui
Carsten Haitzler
Cedric Bail