Commit graph

1334 commits

Author SHA1 Message Date
Alessandro Decina
b365425dc2 glupload: fix allocator name after GLMemory API changes 2017-12-09 19:32:12 +00:00
Nicolas Dufresne
8f4ba29f97 gl: Allow using non-system mesa with both GL and GLES
GCC automatically disable redundance warnings for system headers. As
soon as we start using a non-system installed mesa, we would start
having issues. The test for both wasn't setting any flags, so it would
work but then fail at runtime.

This is being fixed by disabling in the code (where needed only) that
GCC warning. The test is also fixed to avoid the false positive we had.
2017-12-09 19:32:12 +00:00
Xavier Claessens
ac6e8e93a2 bad: Add g_autoptr() support to all types
https://bugzilla.gnome.org/show_bug.cgi?id=754464
2017-12-09 19:32:12 +00:00
Luis de Bethencourt
648c2e20dc glviewconvert: check pointer before dereferencing
priv->primary_out could be NULL, check before dereferencing it in
GST_BUFFER_FLAG_SET ()

CID 1308945
2017-12-09 19:32:12 +00:00
Matthew Waters
4fc012af19 glbuffer: bind/unbind on map/unmap for GL mappings
Bind the handle to the GL target on map/unmap to save the caller from
handling this themselves.
2017-12-09 19:32:12 +00:00
Matthew Waters
ab75223594 glbuffer: remove buffer specific transfer flags
Instead rely on GstGLBaseMemory's transfer handling
2017-12-09 19:32:12 +00:00
Matthew Waters
f83b834628 glmemorypbo: map/unmap pbo memory correctly for state tracking
Otherwise some downloads will fail to occur from the PBO.
2017-12-09 19:32:12 +00:00
Matthew Waters
d1812fc73c glformat: add compatibility definitions for OES/rectangle textures 2017-12-09 19:32:12 +00:00
Matthew Waters
dc02d47092 glbasebuffer: remove unsed memory subclass
The functionality has been split into GstGLBaseMemory and GstGLBuffer.
2017-12-09 19:32:12 +00:00
Matthew Waters
76a38dd66a glmemory: base classify and add the pbo memory on top
The base class is useful for having multiple backing memory types other
than the default.  e.g. IOSurface, EGLImage, dmabuf?

The PBO transfer logic is now inside GstGLMemoryPBO which uses GstGLBuffer
to manage the PBO memory.

This also moves the format utility functions into their own file.
2017-12-09 19:32:12 +00:00
Matthew Waters
5ab3a38973 gl: add a GL buffer based GstMemory
Heavily based on GstGLBaseBuffer that is a subclass of GstGLBaseMemory.
Provides GPU and CPU accessible GL buffer objects by GL handle or by
sysmem data pointer.
2017-12-09 19:32:12 +00:00
Matthew Waters
af7015602a gl: add a base memory object
It handles the following
- GstAllocationParams -> gst_memory_init transformation
- Makes sure that map/unmap/create/destroy happen on the GL thread with
  a GL context current.
- Holds a possible sysmem accessible data pointer with alignment.
- Holds the need upload/download transfer state
2017-12-09 19:32:12 +00:00
Matthew Waters
caee3e41f9 gl: add convenience function for the start of a video frame
Get's the start of the video frame based on a GstVideoInfo and
GstVideoAlignment.
2017-12-09 19:32:12 +00:00
Matthew Waters
cd584d215c gluploadmeta; remove convenience helper API
It was not really useful as if one knows about libgstgl, one can just use
GLMemory objects directly.
2017-12-09 19:32:12 +00:00
Matthew Waters
3545d340b6 gldownload: remove helper api from the library
It was never used by anyone and is not needed anymore with the element
and GstGLMemory's transparent support for downloading textures.
2017-12-09 19:32:12 +00:00
Alessandro Decina
610f965be8 libgstgl: gstglcontext_cocoa: kCGLPFAStereo has been deprecated in 10.11
Also since the version scheme has changed (to include the micro number) since
10.10, use the MAC_OS_X_VERSION_* macro to avoid confusion.
2017-12-09 19:32:12 +00:00
Alessandro Decina
b8e06e7311 glbufferpool: relax check for multiple texture targets
Only complain about multiple texture targets when _different_ texture targets
are configured.
2017-12-09 19:32:12 +00:00
Alessandro Decina
fa1c4e552c glmemory: take subsampling into account for rectangle textures
Rectangle textures don't use normalized coordinates so subsampling needs to be
factored in explicitly.

Fixes YUV => RGB conversion for rectangle textures.
2017-12-09 19:32:11 +00:00
Matthew Waters
e8f966dcab glproto: include function definitions for GL_APPLE_sync
Provides a performance improvement on iOS where we were falling back to glFinish
on settting sync points.
2017-12-09 19:32:11 +00:00
Nicolas Dufresne
21df596b8b glupload: Only offer custom allocator with caps features
To use GLMemory and EGLImage allocators, one need to know the
libgstgl API. This is only expected if the associated caps features
have been negotiated. Generic element that otherwise receive those
allocators may fail, resulting in broken pieline. We don't want to
force all generic element to check if the allocator is a custom
allocator or a normal allocator (which implement the _alloc method).

https://bugzilla.gnome.org/show_bug.cgi?id=758877
2017-12-09 19:32:11 +00:00
Matthew Waters
953be21a22 glcolorconvert: improve the YUY2/UYVY->RGBA conversion shader
Don't offset the y-axis.  We only need to offset on the x-axis.

Removes a sawtooth pattern on horizontal and vertical edges.

https://bugzilla.gnome.org/show_bug.cgi?id=755486
2017-12-09 19:32:11 +00:00
Matthew Waters
bb7422e91b glcolorconvert: improve RGBA->YUY2/UYVY conversion shader
We should only average the chroma samples not the luma sample.

https://bugzilla.gnome.org/show_bug.cgi?id=758904
2017-12-09 19:32:11 +00:00
Reynaldo H. Verdejo Pinochet
8ab57b5b23 Drop usage of deprecated g-ir-scanner --strip-prefix flag 2017-12-09 19:32:11 +00:00
Reynaldo H. Verdejo Pinochet
68e668168d Remove unnecessary NULL checks before g_free()
g_free() is NULL-safe
2017-12-09 19:32:11 +00:00
Sebastian Dröge
e7b63b1397 glviewconvert: String literals are const
gstglviewconvert.c: In function '_mangle_extensions':
gstglviewconvert.c:1511:13: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
     ext_str = "#extension GL_OES_EGL_image_external : require\n";
             ^
2017-12-09 19:32:11 +00:00
Sebastian Dröge
316c2c3418 glsyncmeta: Actually return the newly created meta from gst_buffer_add_gl_sync_meta()
gstglsyncmeta.c  -fPIC -DPIC -o .libs/libgstgl_1.0_la-gstglsyncmeta.o
gstglsyncmeta.c: In function 'gst_buffer_add_gl_sync_meta':
gstglsyncmeta.c:131:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
2017-12-09 19:32:11 +00:00
Matthew Waters
0e404ae3fc glsyncmeta: add vfuncs for all operations
there could be other ways/requirements for synchronising two GPU command
streams (whether GL or platform specific).

e.g. glfencesync/eglwaitnative/cond/etc
2017-12-09 19:32:11 +00:00
Matthew Waters
975e96db44 glviewconvert: add support rectangle/external-oes textures
https://bugzilla.gnome.org/show_bug.cgi?id=757285
2017-12-09 19:32:11 +00:00
Vineeth TM
a0a8b8873b glsl: fix possible string overrun in gst_glsl_version_profile_from_string
given a NULL-terminated string, s.
s[i] = '\0';
i++;
does not guarentee that s[i] is NULL terminated and thus string operations
could read off the end of the array.

https://bugzilla.gnome.org/show_bug.cgi?id=758039
2017-12-09 19:32:11 +00:00
Matthew Waters
148940c456 glshader: don't read invalid list pointers (use after free)
gst_gl_shader_detach_unlocked already removes the list entry so attempting to
use the element to iterate to the next stage could read invalid data.

Based on patch by Vineeth TM <vineeth.tm@samsung.com>

https://bugzilla.gnome.org/show_bug.cgi?id=758039
2017-12-09 19:32:11 +00:00
Vineeth TM
d5c1ff4bf2 glsl: free str while returning error
https://bugzilla.gnome.org/show_bug.cgi?id=758039
2017-12-09 19:32:11 +00:00
Vineeth TM
7a75684566 glslstage: Fix vertex_sources memory leak
vertex_sources is being allocated but not freed resulting in leak

https://bugzilla.gnome.org/show_bug.cgi?id=757974
2017-12-09 19:32:11 +00:00
Vineeth TM
7b0125ab11 glcolorconvert: remove unnecessary free
version_str is already being freed. So no need to call again

https://bugzilla.gnome.org/show_bug.cgi?id=757974
2017-12-09 19:32:11 +00:00
Vineeth TM
07901d8eed glcolorconvert: Fix string leak
String got using gst_glsl_version_profile_to_string, is allocated
memory and should be freed

https://bugzilla.gnome.org/show_bug.cgi?id=757974
2017-12-09 19:32:11 +00:00
Vineeth TM
1f245c3d2e glcolorconvert: Fix frag_prog and frag_body memory leak
https://bugzilla.gnome.org/show_bug.cgi?id=757974
2017-12-09 19:32:11 +00:00
Matthew Waters
b30deff7e1 glcolorconvert: mangle gl_FragColor for GL3
Some drivers don't provide the compatibility definition and we need to provide
our own 'out vec4' variable to put the results of the fragment shader into.

https://bugzilla.gnome.org/show_bug.cgi?id=757938
2017-12-09 19:32:11 +00:00
Matthew Waters
b8c1ecf268 glviewconvert: remove set_format
We need the caps to be able to
1. check the caps features
2. get the requested texture-target on input/output
2017-12-09 19:32:11 +00:00
Matthew Waters
117fc0409a glshader: properly unref the stages on failure
When failing in the varargs functions, all the stage objects not handled need to
be unreffed to prevent a leak.
2017-12-09 19:32:11 +00:00
Matthew Waters
1f35fcf06d glslstage: properly return an error when we could not create the shader stage
While it was erroring out correctly later, there were GLib warnings about
setting a GError over the top of another GError.
2017-12-09 19:32:10 +00:00
Matthew Waters
ef319c7b8f glshaderstrings: fixup the external-oes fragment shader
The wrong sampler type was used
s/sampler2DExternalOES/samplerExternalOES/
2017-12-09 19:32:10 +00:00
Matthew Waters
105497de60 glcolorconvert: try to keep the same texture-target if possible
Fixes issues attempting to passthrough external-oes textures
2017-12-09 19:32:10 +00:00
Matthew Waters
46b84c6035 glcolorconvert: fix rendering rectangular textures with GL3
Rectangular textures are unavailable in unextended
GLES2 #version 100 shaders.

Fixes
texture-target=rectangle ! glcolorconvert ! texture-target=2D

There's a couple of differences between GL3 and GLES2/GL

- varying -> in or out depending on the stage (vertex/fragment)
- attribute -> in
- filtered texture access is a single function, texture()
2017-12-09 19:32:10 +00:00
Matthew Waters
e32fcfbf3c glcolorconvert: properly use the other texture-target on fixation 2017-12-09 19:32:10 +00:00
Matthew Waters
ec0a93dd7e glslstage: add debug as to why _set_strings() failed 2017-12-09 19:32:10 +00:00
Matthew Waters
5d7556a08d glsl: fix check for glsl version against GL context inversion
Any GLSL version that was less than the provided GL version would fail
2017-12-09 19:32:10 +00:00
Matthew Waters
9a3ea0adb7 gl: forward declare some enums
Specifically the GstGLTextureTarget enum
2017-12-09 19:32:10 +00:00
Matthew Waters
b1ac029b87 glslstage: expose the default shader strings as public
Add some other simple strings for external-oes textures or transforming
the texture coordinates with a transformation matrix
2017-12-09 19:32:10 +00:00
Matthew Waters
6a75a07815 glcolorconvert: wait on the sync meta for input buffers 2017-12-09 19:32:10 +00:00
Matthew Waters
c5f3406186 glcolorconvert: use the correct oes target string in the template caps 2017-12-09 19:32:10 +00:00
Tim-Philipp Müller
7a166e019b glshader, tsdemux: simplify code
Jus use _delete_link() instead of _remove_link() + _free1()
2017-12-09 19:32:10 +00:00
Alessandro Decina
7fedb34bea gstglutils: fix shader compilation on Mountain Lion
Make gst_gl_context_gen_shader/_compile_shader assume GST_GLSL_PROFILE_ES |
GST_GLSL_PROFILE_COMPATIBILITY as the profile. Without this, the shader compiler
doesn't inject the #version tag resulting in a compilation error on Mountain
Lion.

This is a workaround for old code using gst_gl_context_gen_shader. New code
should use the gst_glsl_stage_* API directly which allows the caller to
explicitly specify version/profile.
2017-12-09 19:32:10 +00:00
Matthew Waters
d41e6a5579 glbufferpool: explicitly initialize a possibly uninitialized variable
The ret variable may be uninitialized and so its contents were undefined and
the results were erratic (failing with glvideomixer, succeeding in other cases)

P.S. No idea why gcc/clang et al never picked up on this like they normally do
(probably due to some optimisation pass figuring out it's only set once...)
2017-12-09 19:32:10 +00:00
Matthew Waters
b0d40019f9 glslstage: remove typedefs from the header
They are already defined in the forward decleration header and defining them
more than once will give an error with OSX's clang about typedef redefinition
being a C11 feature.
2017-12-09 19:32:10 +00:00
Matthew Waters
2595f73fd0 glcolorconvert: follow the correct texture target names 2017-12-09 19:32:10 +00:00
Matthew Waters
434bbc9f01 glupload: explicitly configure the texture target on the gl buffer pool
If we don't, then the pool could end up allocating 2D textures when the
caps explictly state they should be rectangle textures.
2017-12-09 19:32:10 +00:00
Matthew Waters
18f9dfdfe5 glbufferpool: add bufferpool options for the various texture targets
This was chosen over relying solely on the caps as glupload needs to propose an
allocation and set the texture target based on the output caps.  Setting the
caps in the config is currently pointless as they are overwritten in a lot of
element's decide_allocation functions.

This provides a mechanism for the buffer pool to be configured for a certain
texture target when none has been configured.
2017-12-09 19:32:10 +00:00
Matthew Waters
6141d3fc7e glcolorconvert: add support for converting texture targets
Solved with a simple shader templating mechanism and string replacements
of the necessary sampler types/texture accesses and texture coordinate
mangling for rectangular and external-oes textures.
2017-12-09 19:32:10 +00:00
Matthew Waters
681cb5b16d glmemory: add support for rectangle textures
Add the various tokens/strings for the differnet texture types (2D, rect, oes)

Changes the GLmemory api to include the GstGLTextureTarget in all relevant
functions.

Update the relevant caps/templates for 2D only textures.
2017-12-09 19:32:10 +00:00
Matthew Waters
aa32408926 glcolorconvert: order the caps template so that RGBA is first
glcolorconvert ! glcolorconvert would sometimes negotiated RGB
(the first list entry) otherwise.
2017-12-09 19:32:10 +00:00
Matthew Waters
33f73b400d glbufferpool: move typedef's into the forward decleration file
Otherwise, for example, clang will warn about typedef redefinitions
being a C11 feature.
2017-12-09 19:32:10 +00:00
Julien Isorce
6bb560a4eb glslstage: initialize output params to 0 before calling gl functions
The client side API of the Chromium's GPU Process has asserts
in debug mode that check that output params are initialized to 0.
2017-12-09 19:32:10 +00:00
Matthew Waters
ad49a39e5b glcolorconvert: allow outputting multiple textures for gles3 contexts
the USING_GLES2 includes all GLES3 contexts as well which does support
drawing to multiple buffers.  Instead make or decision solely based on
whether glDrawBuffers is available or not.
2017-12-09 19:32:10 +00:00
Matthew Waters
cfb0d7e9f3 glviewconvert: expose the element on gles2 platforms
We can do everything with gles3 however gles2 restricts us not allowing
separated or frame-by-frame multiview modes due to multiple draw buffers.
2017-12-09 19:32:09 +00:00
Matthew Waters
764c4a33bc gl: fix usage of string.h and stdio.h functions without including the headers
e.g:
gstglcontext_egl.c:613:7: error: implicit declaration of function 'strcmp'
[-Werror=implicit-function-declaration]
   if (strcmp (G_MODULE_SUFFIX, "so") == 0)
2017-12-09 19:32:09 +00:00
Matthew Waters
4d46edfd50 gl: remove unneeded shader variable parsing code 2017-12-09 19:32:09 +00:00
Matthew Waters
06de6998e5 gl: be consistent in gobject boilerpate
GST_GL_IS_* vs GST_IS_GL_*

git grep -l 'GST_GL_IS_' | xargs sed -i 's/GST_GL_IS_/GST_IS_GL_/g'
2017-12-09 19:32:09 +00:00
Matthew Waters
463e23bb47 glslstage: add brackets around pointer dereference referencing an array
While technically, i is always 0 and *vertex_sources[i++] is equivalant
to (*vertex_sources)[i++].  Be future-proof in the case of code
moves/changes/etc.

CID 1327406
2017-12-09 19:32:09 +00:00
Matthew Waters
f688a8f0b2 glshader: port to using GstGLSLStage objects for string management
A GstGLShader is now simply a collection of stages that are
compiled and linked together into a program.  The uniform/attribute
interface has remained the same.
2017-12-09 19:32:09 +00:00
Matthew Waters
8c922ca96b glsl: add a shader stage object GstGLSLStage
Represents a stage (vertex, geometry, fragment, etc) in the shader
pipeline.
2017-12-09 19:32:09 +00:00
Matthew Waters
18e205dcbb gl/shader/variables: include generic gl.h header
Otherwise we may miss some forward declarations

Fixes build error: undefined reference to GstGLSLStage
2017-12-09 19:32:09 +00:00
Matthew Waters
332543f3cf gl: add some GLSL utility functions
Specifically parsing/setting GLSL versions and the shader related
function table.
2017-12-09 19:32:09 +00:00
Guillaume Desmottes
01e1046dbc gl: fix leak in gst_gl_insert_debug_marker()
The string allocated by g_vasprintf() was leaked.

Reproduced using the
validate.file.compositor.simple.play_15s.synchronized validate scenario.

https://bugzilla.gnome.org/show_bug.cgi?id=756492
2017-12-09 19:32:09 +00:00
Matthew Waters
16ee1636dc gl: move debugging related functions to their own file 2017-12-09 19:32:09 +00:00
Antoine Jacoutot
9117b50cfb gl: Pass GL_CFLAGS to g-ir-scanner
This unbreaks building when some headers are under a non-standard path.
e.g. /usr/X11R6/include as on OpenBSD.

https://bugzilla.gnome.org/show_bug.cgi?id=755850
2017-12-09 19:32:09 +00:00
Matthew Waters
37047a1050 glcontext: fixup strstr lengths so we don't overrun 2017-12-09 19:32:09 +00:00
Matthew Waters
73bad9e856 glupload: remove useless release_buffer
It's a leftover from when we weren't outputting GstBuffer's and
returning raw texture id's.
2017-12-09 19:32:09 +00:00
Matthew Waters
0580536fa1 glutils: use gst_element_set_context for setting display/other_context
1. So we get tracking inside GstElement properly when e.g. adding to a bin
2. Removes redundant code.  Now only one place where
   GstContext->GstGLDisplay/GstGLContext transformation occurs
3. Fixes a memory leak in the process
4. Make the retrieval of debug categories thread safe
2017-12-09 19:32:09 +00:00
Matthew Waters
977c335460 gl/eagl: use the default GL context debug category 2017-12-09 19:32:09 +00:00
Matthew Waters
dc469454d7 gl: set the context on the element on a context query
Otherwise it's possible to lose the context information if the
context is only propagated through queries.
2017-12-09 19:32:09 +00:00
Matthew Waters
8187171908 gl: chain up to the parent class for GstElement::set_context
https://bugzilla.gnome.org/show_bug.cgi?id=705579
2017-12-09 19:32:08 +00:00
Matthew Waters
bf98930546 gl: sprinkle some debug markers to ease debugging 2017-12-09 19:32:08 +00:00
Matthew Waters
c486b1b3b0 gl/utils: add a function to insert a debug marker
These markers are visible in tools that record the GL function calls
such as apitrace, et al.

Makes it easier to match up GL draw commands with specific elements.
2017-12-09 19:32:08 +00:00
Matthew Waters
ec99383a21 gl: add some debugging prototypes 2017-12-09 19:32:08 +00:00
Matthew Waters
e9864e2e3e glwindow: remove unused draw_unlocked function
The functionality is provided by draw anyway and is leftover from
X11's specific threading requirements that no longer apply.
2017-12-09 19:32:08 +00:00
Julien Isorce
231e91c883 glfilter: use GL_ELEMENT_ARRAY_BUFFER for vbo indices
Fixes this error with chromium gpu process:
GL_INVALID_OPERATION, glBindBuffer: buffer bound to more than 1 target

https://bugzilla.gnome.org/show_bug.cgi?id=755618
2017-12-09 19:32:08 +00:00
Julien Isorce
d0bc54956d glmemory: fix texture leak in _gl_mem_copy
https://bugzilla.gnome.org/show_bug.cgi?id=755456
2017-12-09 19:32:08 +00:00
Matthew Waters
6de7db9a4e gl/dispmanx: fix rendering with recent resize state tracking
557ca6fda5 didn't change to the
necessary gst_gl_window_resize() call for the dispmanx backend.
2017-12-09 19:32:08 +00:00
Matthew Waters
718318ce19 gl/caopengllayer: fix non-existent selector warning
557ca6fda5 introduced the queueResize
call without implementing the selector
2017-12-09 19:32:08 +00:00
Jan Schmidt
6b67fdf2ef glwindow: Fix g_return_val_if_fail in a void function 2017-12-09 19:32:08 +00:00
Matthew Waters
63bbe9406a glwindow: add API to request a resize event on the next draw
- glimagesink needs to be able to resize the viewport on aspect ratio
  changes resulting from either caps changes or 3d output mode changes.
- Performing a glViewport outside the GstGLWindow::resize callback
  will not have the winsys' stack of viewports required to correctly
  place the output frame.

Provide a function to request a resize on the next draw event from the
winsys.

Also track size changes inside the base GstGLWindow class rather
than in each subclass.

https://bugzilla.gnome.org/show_bug.cgi?id=755111
2017-12-09 19:32:08 +00:00
Matthew Waters
a18cdf4781 gl/x11: store the correct dimension from the resize events
small typo s/width/height/
2017-12-09 19:32:08 +00:00
Vineeth T M
6944433677 gl: Fix GError leaks during failures
https://bugzilla.gnome.org/show_bug.cgi?id=755140
2017-12-09 19:32:08 +00:00
Tim-Philipp Müller
990a49fe4f gl: bufferpool take into account video stride alignment requirements
when allocating memory. Fixes crashes with avdec_h265 in the AVX2
code path which requires 32-byte stride alignment, but the
GstAllocationParams only specified a 16-byte alignment.

https://bugzilla.gnome.org/show_bug.cgi?id=754120
2017-12-09 19:32:08 +00:00
Matthew Waters
5adde7f98b gl/api: use public rather than private define
HAVE_IOS is only defined for the build of this module so
attempting to use gstgl in iOS would result in incorrect GL
includes.
Use GST_GL_HAVE_PLATFORM_EAGL instead for choosing the iOS GL
header.
2017-12-09 19:32:08 +00:00
Sebastian Dröge
cd326adacc gl/eagl: Also unbind renderbuffer after setting up framebuffer
https://bugzilla.gnome.org/show_bug.cgi?id=754757
2017-12-09 19:32:08 +00:00
Sebastian Dröge
ae721c54c2 gl/eagl: Don't make context uncurrent just to make it current again in the next line
Also binding the framebuffer again is unnecessary then as it was just bound a
few lines before while the context was current.

https://bugzilla.gnome.org/show_bug.cgi?id=754757
2017-12-09 19:32:08 +00:00
Tim-Philipp Müller
06a1954165 gtk, qt, gl: fix typo in debug and error messages 2017-12-09 19:32:08 +00:00
Sebastian Dröge
3d4f982045 gl/eagl: Unref context after setting a window handle
gst_gl_window_get_context() returns a new reference.

Hopefully fixes https://bugzilla.gnome.org/show_bug.cgi?id=753758
2017-12-09 19:32:08 +00:00
Nicolas Dufresne
d1cece731e gl: Let base transform relay the meta api for us
During allocation query, when this element is not passthrough, it must
relay the overlay compostion meta and it's parameters. Fortunatly, base
transform can do this for us.

https://bugzilla.gnome.org/show_bug.cgi?id=753850
2017-12-09 19:32:08 +00:00
Justin Kim
c8628fc43d glcontext: add specific error message when missing GL_SHADING_LANGUAGE_VERSION
GL_SHADING_LANGUAGE_VERSION was introduced since ES 2.0, but in some
android emulator doesn't support this feature. To prevent confusion for
developer, the error message need to be more clear.

https://bugzilla.gnome.org/show_bug.cgi?id=753905
2017-12-09 19:32:08 +00:00