Possible bug in exaTryDriverComposite() to do with rotate

[Barry Scott]

I'm trying to track down why rotation on the i965 is broken.
The screen that is drawn is always a square with demension
of the height. e.g for 1370x768 only 768x768 is drawn correctly
the rest of the screen is what ever was in memory.

When exaTryDriverComposite() is entered:

(gdb) p *pSrc->pDrawable
$39 = {type = 0 '\0', class = 1 '\001', depth = 24 '\030', bitsPerPixel 
= 32 ' ', id = 98, x = 0, y = 0, width = 768,
 height = 1360, pScreen = 0x8c4a958, serialNumber = 60}
(gdb) p *pDst->pDrawable
$40 = {type = 1 '\001', class = 0 '\0', depth = 24 '\030', bitsPerPixel 
= 32 ' ', id = 0, x = 0, y = 0, width = 1360,
 height = 768, pScreen = 0x8c4a958, serialNumber = 11}
(gdb)

This makes sense the pSrc->pDrawable is 768x1360 the pDst is 1360x768.

However after these calls:

339         pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable);
340         pDstPix = exaGetDrawablePixmap(pDst->pDrawable);

We have:

(gdb) p *pSrcPix
$41 = {drawable = {type = 1 '\001', class = 0 '\0', depth = 24 '\030', 
bitsPerPixel = 32 ' ', id = 0, x = 0, y = 0,
   width = 1360, height = 768, pScreen = 0x8c4a958, serialNumber = 2}, 
refcnt = 1, devKind = 5632, devPrivate = {
   ptr = 0xa7e88000, val = -1477935104, uval = 2817032192, fptr = 
0xa7e88000}, devPrivates = 0x8c5fbac, screen_x = 0,
 screen_y = 0}
(gdb) p *pDstPix
$42 = {drawable = {type = 1 '\001', class = 0 '\0', depth = 24 '\030', 
bitsPerPixel = 32 ' ', id = 0, x = 0, y = 0,
   width = 1360, height = 768, pScreen = 0x8c4a958, serialNumber = 11}, 
refcnt = 2, devKind = 5632, devPrivate = {
   ptr = 0xa85d6000, val = -1470275584, uval = 2824691712, fptr = 
0xa85d6000}, devPrivates = 0x8c68ab4, screen_x = 0,
 screen_y = 0}
(gdb) p pDstPix
$43 = 0x8c68a88
(gdb) p pDst->pDrawable
$44 = 0x8c68a88
(gdb)

pDst->pDrawable is the same as pDstPix

pSrcPix is 1360x768 not what I'd expect which is 768x1360.

Is this the root cause of the failure to rotate the whole screen?

Barry