This enables the egl_dri2 driver to load swrast driver
for software rendering. It could be used when hardware
dri2 drivers are not available, such as in VM.
Signed-off-by: Haitao Feng <haitao.feng@intel.com>
When an app loads libEGL.so dynamically with RTLD_LOCAL, loading DRI
drivers would fail because of missing glapi symbols. This commit makes
egl_dri2 load libglapi.so with RTLD_GLOBAL to export glapi symbols for
future symbol resolutions.
The same trick can be found in GLX. However, egl_dri2 can only do so
when --enable-shared-glapi is given. Because, otherwise, both libGL.so
and libglapi.so define glapi symbols and egl_dri2 cannot tell which
library to load.
The idea is to be able to match a driver using the following order
try egl_gallium with hw renderer
try egl_dri2
try egl_gallium with sw renderer
try egl_glx
given the module list
egl_gallium
egl_dri2
egl_glx
For that, UseFallback initialization option is added. The module list
is matched twice: with the option unset and with the option set. In the
first pass, egl_gallium skips its sw renderer and egl_glx rejects to
initialize since UseFallback is not set. In the second pass,
egl_gallium skips its hw renderer and egl_dri2 rejects to initialize
since UseFallback is set. The process stops at the first driver that
initializes the display.
Reorder/rename and document the fields that should be set by the driver during
initialization. Drop the major/minor arguments from drv->API.Initialize.
In preparation for making egl_dri2 built-in. It also handles
symbol lookup error: /usr/local/lib/egl/egl_dri2.so: undefined symbol:
_glapi_get_proc_address
more gracefully.
Add release function for texture_from_pixmap extension.
Some platform need to release texture image for texture_from_pixmap
extension, add this interface for those platforms.
When a context was made current to another surface, the old code did
this
dri2_dpy->core->bindContext(cctx, ddraw, rdraw);
dri2_dpy->core->unbindContext(old_cctx);
and there will be no current context due to the second line.
unbindContext should be called only when bindContext is not. This fixes
a regression since d19afc57. Thanks to Neil Roberts for noticing the
issue and creating a test case.
The opaque nature of EGLImage implies that extensions almost always
define their own attributes. Move attributes in _EGLImage to
_EGLImageAttribs and add a helper function to parse attribute lists.
We can't expect to have a context when this is called, and we don't need one
so just require a __DRIscreen instead.
Reported by Yu Dai <yu.dai@intel.com>
Benjamin Franzke
Kristian Høgsberg
José Fonseca
Haitao Feng
Chia-I Wu
Juan Zhao
Robert Hooker
Alex Deucher
Ian Romanick
Jesse Barnes