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Remove dead NEED_DBE_BUF_BITS code.

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This commit is contained in:
Eamon Walsh
2007-03-26 10:21:44 -04:00
committed by Eamon Walsh
parent 2e3cc861f9
commit f7c5aa0dc0
7 changed files with 0 additions and 114 deletions
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54
include/dix.h
View File

@@ -81,59 +81,6 @@ SOFTWARE.
return(BadIDChoice);\
}
/*
* We think that most hardware implementations of DBE will want
* LookupID*(dbe_back_buffer_id) to return the window structure that the
* id is a back buffer for. Since both front and back buffers will
* return the same structure, you need to be able to distinguish
* somewhere what kind of buffer (front/back) was being asked for, so
* that ddx can render to the right place. That's the problem that the
* following code solves. Note: we couldn't embed this in the LookupID*
* functions because the VALIDATE_DRAWABLE_AND_GC macro often circumvents
* those functions by checking a one-element cache. That's why we're
* mucking with VALIDATE_DRAWABLE_AND_GC.
*
* If you put -DNEED_DBE_BUF_BITS into PervasiveDBEDefines, the window
* structure will have two additional bits defined, srcBuffer and
* dstBuffer, and their values will be maintained via the macros
* SET_DBE_DSTBUF and SET_DBE_SRCBUF (below). If you also
* put -DNEED_DBE_BUF_VALIDATE into PervasiveDBEDefines, the function
* DbeValidateBuffer will be called any time the bits change to give you
* a chance to do some setup. See the DBE code for more details on this
* function. We put in these levels of conditionality so that you can do
* just what you need to do, and no more. If neither of these defines
* are used, the bits won't be there, and VALIDATE_DRAWABLE_AND_GC will
* be unchanged. dpw
*/
#if defined(NEED_DBE_BUF_BITS)
#define SET_DBE_DSTBUF(_pDraw, _drawID) \
SET_DBE_BUF(_pDraw, _drawID, dstBuffer, TRUE)
#define SET_DBE_SRCBUF(_pDraw, _drawID) \
SET_DBE_BUF(_pDraw, _drawID, srcBuffer, FALSE)
#if defined (NEED_DBE_BUF_VALIDATE)
#define SET_DBE_BUF(_pDraw, _drawID, _whichBuffer, _dstbuf) \
if (_pDraw->type == DRAWABLE_WINDOW)\
{\
int thisbuf = (_pDraw->id == _drawID);\
if (thisbuf != ((WindowPtr)_pDraw)->_whichBuffer)\
{\
((WindowPtr)_pDraw)->_whichBuffer = thisbuf;\
DbeValidateBuffer((WindowPtr)_pDraw, _drawID, _dstbuf);\
}\
}
#else /* want buffer bits, but don't need to call DbeValidateBuffer */
#define SET_DBE_BUF(_pDraw, _drawID, _whichBuffer, _dstbuf) \
if (_pDraw->type == DRAWABLE_WINDOW)\
{\
((WindowPtr)_pDraw)->_whichBuffer = (_pDraw->id == _drawID);\
}
#endif /* NEED_DBE_BUF_VALIDATE */
#else /* don't want buffer bits in window */
#define SET_DBE_DSTBUF(_pDraw, _drawID) /**/
#define SET_DBE_SRCBUF(_pDraw, _drawID) /**/
#endif /* NEED_DBE_BUF_BITS */
#define VALIDATE_DRAWABLE_AND_GC(drawID, pDraw, pGC, client)\
if ((stuff->gc == INVALID) || (client->lastGCID != stuff->gc) ||\
(client->lastDrawableID != drawID))\
@@ -158,7 +105,6 @@ SOFTWARE.
pGC = client->lastGC;\
pDraw = client->lastDrawable;\
}\
SET_DBE_DSTBUF(pDraw, drawID);\
if (pGC->serialNumber != pDraw->serialNumber)\
ValidateGC(pDraw, pGC);

6
include/windowstr.h
View File

@@ -129,12 +129,6 @@ typedef struct _Window {
unsigned viewable:1; /* realized && InputOutput */
unsigned dontPropagate:3;/* index into DontPropagateMasks */
unsigned forcedBS:1; /* system-supplied backingStore */
#ifdef NEED_DBE_BUF_BITS
#define DBE_FRONT_BUFFER 1
#define DBE_BACK_BUFFER 0
unsigned dstBuffer:1; /* destination buffer for rendering */
unsigned srcBuffer:1; /* source buffer for rendering */
#endif
#ifdef COMPOSITE
unsigned redirectDraw:1; /* rendering is redirected from here */
#endif