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Also done some clean up, like removing unused/redundant members of the
screen private structure, and removing now unused configuration file
options.
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WaitQueue() did receive an unused parameter, that was removed. The
parameter was unused since version 1.0 in XFree86 CVS, so probably
nobody knows for what it was used.
WaitIdle() now also replaces WaitIdleEmpty(), as an idle engine
should also have an empty fifo.
SMI_SubsequentScreenToScreenCopy() was changed to use WaitIdle()
instead of WaitQueue() before submitting the commands to the engine.
This fixes a nasty lockup when using XaaOffscreenPixmaps (what is
desired/wanted to help improve performance), and the lockup in the
MSOC was clearly due to an engine overrun, when sending commands
faster then the engine could process.
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Instead of cut&paste of the name of the current function everywhere,
just use cpp's __FUNCTION__ predefined macro.
Create two macros to exit a function, named LEAVE() and RETURN().
Functions returning void should call LEAVE() and then explicitly return
for now. "Logged" function calls are indented, so a review was done to
ensure functions with a ENTER() also have the proper exit macro.
The DEBUG macro was changed to have variadic arguments, and this way
it is no longer required to prefix arguments with VERBLEV, but now it
also is not possible to use another "verbosity value", but it wasn't used
in any of the DEBUG macro calls.
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* I added the configuration file option "RandRRotation".
* I replaced pSmi->ShadowPitch with pSmi->screenStride, it seems it
makes more sense because the lower word of ShadowPitch may change
independently.
* I moved the SMI_DEDataFormat to smi_accel.c because it seems it is
a piece of code repeated many times in the driver.
* At some places, it is assumed the framebuffer is at FBOffset:
when using a shadow framebuffer, FBOffset is the location of the
on-screen framebuffer (0 should be used). This made e.g. EXA
completly useless with ShadowFB enabled (it crashed).
* In the FBManager initialization, I have replaced xf86InitFBManager
with xf86InitFBManagerRegion to reserve some additional space as
screen fb: it's unlikely to be the case, but a less efficient
alignment in the rotated mode could make the rotated mode need more
memory than the unrotated one.
This is not a problem with EXA as the offscreen memory parameters
can be easily modified when doing the rotation.
* In SMI_RefreshArea it's assumed that some DE registers are already
in some state, this is specially not true when using EXA.
* SMI_ValidMode rejects a rotated mode with different dimensions
than the panel. This seems to work now.
Signed-off-by: Paulo Cesar Pereira de Andrade <pcpa@mandriva.com.br>
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