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Remove all _egl<Res>IsLinked and _egl<Res>IsBound. Update
_eglBindContext and drivers to do reference counting.
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This is a really simple mechanism. There is no atomicity and the caller
is expected to hold the display lock.
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All display resources are already initialized with a display. Linking
simply links a resource to its display.
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We do not want them to be all over the places.
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This extension allows a color buffer to be used for both rendering and
texturing. EGL allows the use of color buffers of pbuffer drawables
for texturing, this extension extends this to allow the use of color
buffers of pixmaps too.
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Both a link and a binding creates a reference to the resource. Drivers
should not destroy the resource when there is a reference. The
difference is better described in doc/egl.html.
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Add missing attributes and use correct types in _EGLSurface. Remove
ifdef tests that serve no purpose. Update _eglQuerySurface and
_eglSurfaceAttrib for missing queries and checks.
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Change _eglInitSurface, _eglInitContext, and _eglInitImage to take an
_EGLDisplay instead of an _EGLDriver. This is a more natural form, and
plus, the display encodes information such as the extensions supported
that might be required for attribute list parsing.
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A context can be bound to a surface just like it can be bound to a
thread. CurrentContext is a more consistent name.
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Rename Native*Type to EGLNative*Type.
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This emphasizes the fact that the resource to be checked could really be
invalid and have an unknown type.
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Turn _EGLSurface and _EGLContext into _EGLResource so that they can be
managed uniformly.
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Move functions to where they should be. There should be no real change
here.
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Mark EGL API and driver functions as PUBLIC.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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This adds error checking to eglSwapInterval and clamps the swap
interval.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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The hash table was used to map a surface to a handle. It is simpler to
cast directly.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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The motivation is so that drivers do not need to look up and check for
bad display, context, and etc. It also becomes unnecessary for drivers
to call the link functions.
This commit makes eglapi.[ch] do the lookup and check. As a result, the
driver API is overhauled, and almost all sources and drivers need
update. The updates are mainly find and replace with human brains.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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IsBound tells if a context or surface is current. What it does not tell
is, to which thread a context is current, or to which context a surface
is current. This commit replaces IsBound by a pointer to the binding
thread or context.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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A context or surface that is neither linked to a display nor current to
a thread should be destroyed. Therefore, an unlinked context or surface
implies a pending delete automatically.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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This commit uses the newly introduced link functions to manage EGL
contexts and surfaces. As a result of this, the API for drivers are
changed. All drivers are updated for the change.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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EGL contexts and surfaces are resources of displays. They should be
managed by displays. This commit adds a bunch of functions to
egldisplay.c to help establish the links between contexts/surfaces and
displays. How links are established is considered opaque outside
display. Functions like _eglGetSurfaceHandle or _eglLookupSurface are
therefore moved to egldisplay.c, with some small modifications.
The idea is also extended to display. That is, displays need to link to
themselves to be looked up.
This commit only adds the functions. A commit to use them should
follow.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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This commit introduces a "current" system to manage per-thread info. It
uses TLS, if GLX_USE_TLS is defined, or pthread, if PTHREADS is defined.
If none of them are defined, it uses a dummy implementation that is just
like before.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
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These are the inverse of the _eglLookup*() functions.
Returns the public handle for a private surface/config/display/etc.
Removes glapi.c's direct access of private fields.
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Redo _eglInitContext() to do error checking, attribute list parsing, etc.
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