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Instead of passing in a fixed struct, the loader now passes in a list
of __DRIextension structs, to advertise the functionality it can provide
to the driver. Each extension is individually versioned and can be
extended or phased out as the interface develops.
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* Fix crash at context creation in most drivers supporting vblank.
* Don't pass vblank sequence or flags to functions that get passed the drawable
private already.
* Attempt to initialize vblank related drawable private fields just once
per drawable. May need more work in some drivers.
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Consolidate support for synchronizing to and retrieving vblank counters. Also
fix the core vblank code to return monotonic MSC counters, which are required
by some GLX extensions. Adding support for multiple pipes to a low level
driver is fairly easy, the Intel 965 driver provides simple example code (see
intel_buffers.c:intelWindowMoved()).
The new code bumps the media stream counter extension version to 2 and adds a
new getDrawableMSC callback. This callback takes a drawablePrivate pointer,
which is used to calculate the MSC value seen by clients based on the actual
vblank counter(s) returned from the kernel. The new drawable private fields
are as follows:
- vblSeq - used for tracking vblank counts for buffer swapping
- vblFlags - flags (e.g. current pipe), updated by low level driver
- msc_base - MSC counter from the last time the current pipe changed
- vblank_base - kernel DRM vblank counter from the last time the pipe changed
Using the above variables, the core vblank code (in vblank.c) can calculate a
monotonic MSC value. The low level DRI drivers are responsible for updating
the current pipe (by setting VBLANK_FLAG_SECONDARY for example in vblFlags)
along with msc_base and vblank_base whenever the pipe associated with a given
drawable changes (again, see intelWindowMoved for an example of this).
Drivers should fill in the GetDrawableMSC DriverAPIRec field to point to
driDrawableGetMSC32 and add code for pipe switching as outlined above to fully
support the new scheme.
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glxgears and googleearth now run so that seems like a good start
Thanks to Aapo Tahkola for doing the 3D work on this so far, I got lost
after the GART changes.
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Mostly making sure the page flipping state is respected when necessary.
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r300UpdateWindow is superfluous or even possibly wrong here; _mesa_make_current
will set the viewport when necessary. So the conditional _mesa_set_viewport call
can go as well.
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And set new cliprects before deriving other state from them. This ensures
cliprects aren't accessed after having been freed.
Thanks to Panagiotis Papadakos for testing various iterations of this.
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Based on a patch by Panagiotis Papadakos.
Among other things, this makes sure the framebuffer object associated with the
drawable has the correct size when _mesa_make_current is called, so the default
viewport is set up correctly.
Also update radeon->lastStamp in radeonSetCliprects.
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This way we no longuer have the fixed RADEON_BUFFER_SIZE.
Anyway function calling AllocDmaRegion should check if this
succeed and fail gracefuly if not (see bug 8348).
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This is already done by the preceeding call to _mesa_init_driver_functions()
which plugs in default functions like that.
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This prevents the first wait for vertical blank from timing out when the X
server has been running for a long time.
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Remove r200*.h files dependency.
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request at least drmMinor 6 anyway.
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movement and 2d windows flashing on top of 3d windows. This problem was previously shadowed by r300ResetHwState as it gets called frequently.
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- Makes all three drivers use the same screen structure and setup code, with a
few ifdefs for the separate compilation to deal with symbols not being
available to all drivers and the fact that we have no mechanism for dealing
with different config options for different chip families in the same driver.
These issues should be dealt with later.
- Introduces IS_R[123]00_CLASS(radeonScreenPtr) macro for code for taking
different paths depending on the general class of chipset.
- Adds many new R300-class PCI IDs, though not all those listed in
radeon_driver.c.
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that are currently obtained via glXGetProcAddress and all of the XF86DRI
functions are replaced with a funciton table. This table will be passed to
__driCreateNewScreen.
One of the functions in the table is getProcAddress. This allows some
loaders to expose functionality not in all loaders. This will be immediatly
used for glxEnableExtension (formerly known to drivers as
__glXScrEnableExtension). libGL (and in the future libglx) expose this
function so that drivers can enable GLX extensions. libEGL should exposed
eglEnableExtension to enable EGL extensions. The same function cannot be
used for both because the extensions have different names and (possibly)
different semantics. Drivers can optionally use one, both, or neither.
The key parts are in the __DRIinterfaceMethodsRec structure in
dri_interface.h. A pointer to one of these structures is passed into
__driCreateNewScreen. Because of this, the version of the API is bumped to
20050725. Since the previous version(s) were never in a release, their
existance is erased.
I was actually a little surprised by how much code this cuts from the
drivers. A lot of glXGetProcAddress calls disappear, and a lot of
version checks go with them. Nice.
The one thing I'm not sure of is removing __glXInitialize. For some
reason that function was in the glXGetProcAddress table, but *nothing*
in the Mesa tree used it. Did something with DRI conf. use this
function? It seems odd...
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but it seems to work
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didnt want to build anymore.
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- Scissor support works now
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