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The old version just set GLX_DRAWABLE_TYPE to GLX_WINDOW_BIT for
configs received through glXGetVisualConfigs and to
GLX_WINDOW_BIT | GLX_PIXMAP_BIT for configs received as FBConfigs.
The X server needs to send this info, but keep the workaround for now.
Fixes #12835.
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The old implementation fetches fbconfigs or glx visuals once and assumes the list
describes both fbconfigs and glx visuals. This patch splits it up and fetches
visuals and fbconfigs in two steps and keep the two lists separate. A server
could have no glx visuals or no glx fbconfigs and the old code wouldn't know the
difference.
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This new API lets the loader examine DRI level extensions provided by the
driver in a forward compatible manner.
Much of the churn in the DRI interface is adding support for new
extensions or removing old, unused extensions. This new extension
mechanism lets the loader query the extensions provided by the driver
and implement the extensions it knows about. Deprecating extensions
is done by not exporting that extension in the list, which doesn't
require keeping old function pointers around to preserve ABI.
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The entrypoints take a mix of __DRIscreen * and void * (screen private)
arguments (similarly for contexts and drawables). This patch does away
with passing the private void pointer and always only passes the fully
typed __DRIscreen pointer and always as the first argument.
This makes the interface more consistent and increases type safety, and
catches a bug where we would pass a screen private to DRIdrawable::getSBC.
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The screenConfigs field of __DRIscreen points back to the containing
__GLXscreenConfigs struct. This is a serious abstraction violation; it
assumes that the loader is libGL and that there *is* a __GLXscreenConfigs
type in the loader.
Using the containerOf macro, we can get from the __DRIscreen pointer to
the containing __GLXscreenConfigs struct, at a place in the stack
where the above is a valid assumption. Besides, the __DRI* structs shouldn't
hold state other than the private pointer.
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As for createDrawable and destroyDrawable, these functions immediately
upon entry to driCreateNewContext and immediately before exit from
driDestroyContext. Instead of passing function pointers back and forth
just obtain the drm_context_t prior to calling DRIscreen::createNewContext
and pass it as a parameter.
This change also lets us keep the DRI context XID in the libGL loader only.
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All the DRI driver did was call the createDrawable callback immediately
upon entry to DRIscreen::createNewDrawable to get the drm_drawable_t.
We can just call that before calling into the DRI driver and pass the
returned drm_drawable_t as an argument to the DRI entry point.
Likewise for destroyDrawable.
Also, DRIdrawablePrivate::draw isn't used anywhere, and since the
driver no longer needs the XID of the drawable we can now drop that.
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Many DRI entry points took a __DRInativeDisplay pointer and a screen
index as arguments. The only use for the native display pointer was to
pass it back to the loader when looking up the __DRIscreen for the given
screen index.
Instead, let's just pass in the __DRIscreen pointer directly, which
let's drop the __DRInativeDisplay type and the getScreen function.
The assumption is now that the loader will be able to retrieve context
from the __DRIscreen pointer when necessary.
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Fedora bug #229808.
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With this, tools like ximagesrc in gstreamer correctly see updates from GL
rendering. Support requires that the Xdamage library be current (but will be
disabled if not present) plus a new X Server with support for the new
XDamagePost request. libGL now has a new interface version, and also links
against libXdamage and libXfixes to support it, but backwards compatibility
is retained.
Currently, all drivers report damage at SwapBuffers time through common code --
front buffer rendering doesn't result in damage being reported. Also, the
damage is against the root window, as our drivers don't yet render to backing
store when they should (composited environments).
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Fixes a GLX protocol problem when binding an indirect rendering context
after a direct rendering context. In this case, the oldContetTag sent to
the server should be None, but the currectContextTag stored in the direct
rendering context (i.e., -1) was sent instead.
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Rearrange most of the internals of MakeContextCurrent. Put all of the code to
bind the new context up front. If that is successful, unbind the old context.
This saves a lot of code and removes some locking crazyiness.
This patch has been tested for indirect rendering with glxinfo, glxgears,
manywin, and wincopy.
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bug 8443
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Make functions for the following extensions only accessable via
glXGetProcAddress:
- GLX_EXT_texture_from_pixmap
- GLX_MESA_copy_sub_buffer
- GLX_MESA_release_buffers
- GLX_MESA_swap_control
- GLX_MESA_swap_frame_usage
- GLX_OML_sync_control
- GLX_SGI_make_current_read
- GLX_SGI_swap_control
- GLX_SGI_video_sync
- GLX_SGIX_swap_barrier
- GLX_SGIX_swap_group
Removed all remnants of the following extensions:
- GLX_MESA_set_3dfx_mode
- GLX_SGI_cushion
- GLX_SGIX_dmbuffer
- GLX_SGIX_video_resize
- GLX_SGIX_video_source
- GLX_SUN_get_transparent_index
-
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reasons)
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defined in glxproto.h. Avoids reading semi-random memory (and probably
crashing) when calling __glXErrorString().
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the driver. The loader now takes care of this for the driver.
Remove _glapi_DispatchTSD and give _glapi_Dispatch its semantic (i.e.,
having a NULL value means that the application is multithreaded and
_glapi_get_dispatch must be called).
Gut all of the dispatch override code. This removes _glapi_RealDispatch,
_glapi_tls_RealDispatch, _glapi_begin_dispatch_override,
_glapi_end_dispatch_override, and _glapi_get_override_dispatch.
Remove _glapi_get_proc_address, _glapi_get_proc_name, _glapi_get_version,
and _glapi_check_table from the loader / driver interface.
Reviewed by: Brian Paul
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Make sure that all the values used in the clean-up code are initialized at
some point. It is still unclear to me as to why GCC does not complain. I
suspect the problem may be due to the depth of if-statement nesting.
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serveral things that are broken when building on a system with X.org 7.0rc0
installed.
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the evil, ugly GLX_PREFIX macro as well.
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A couple other remnants of the old interfaces hit the dust too. Thanks
Jon. :)
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