xserver-multidpi/exa/exa_unaccel.c

415 lines
12 KiB
C

/*
*
* Copyright © 1999 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "exa_priv.h"
#ifdef RENDER
#include "mipict.h"
#endif
/*
* These functions wrap the low-level fb rendering functions and
* synchronize framebuffer/accelerated drawing by stalling until
* the accelerator is idle
*/
/**
* Calls exaPrepareAccess with EXA_PREPARE_SRC for the tile, if that is the
* current fill style.
*
* Solid doesn't use an extra pixmap source, and Stippled/OpaqueStippled are
* 1bpp and never in fb, so we don't worry about them.
* We should worry about them for completeness sake and going forward.
*/
void
exaPrepareAccessGC(GCPtr pGC)
{
if (pGC->stipple)
exaPrepareAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK);
if (pGC->fillStyle == FillTiled)
exaPrepareAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
}
/**
* Finishes access to the tile in the GC, if used.
*/
void
exaFinishAccessGC(GCPtr pGC)
{
if (pGC->fillStyle == FillTiled)
exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_MASK);
if (pGC->stipple)
exaFinishAccess(&pGC->stipple->drawable, EXA_PREPARE_SRC);
}
#if DEBUG_TRACE_FALL
char
exaDrawableLocation(DrawablePtr pDrawable)
{
return exaDrawableIsOffscreen(pDrawable) ? 's' : 'm';
}
#endif /* DEBUG_TRACE_FALL */
void
ExaCheckFillSpans (DrawablePtr pDrawable, GCPtr pGC, int nspans,
DDXPointPtr ppt, int *pwidth, int fSorted)
{
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
fbFillSpans (pDrawable, pGC, nspans, ppt, pwidth, fSorted);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
ExaCheckSetSpans (DrawablePtr pDrawable, GCPtr pGC, char *psrc,
DDXPointPtr ppt, int *pwidth, int nspans, int fSorted)
{
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
fbSetSpans (pDrawable, pGC, psrc, ppt, pwidth, nspans, fSorted);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
ExaCheckPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth,
int x, int y, int w, int h, int leftPad, int format,
char *bits)
{
ExaPixmapPriv(exaGetDrawablePixmap(pDrawable));
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
if (exaGCReadsDestination(pDrawable, pGC->planemask, pGC->fillStyle,
pGC->alu))
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
else
exaPrepareAccessReg (pDrawable, EXA_PREPARE_DEST,
DamagePendingRegion(pExaPixmap->pDamage));
fbPutImage (pDrawable, pGC, depth, x, y, w, h, leftPad, format, bits);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
RegionPtr
ExaCheckCopyArea (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
int srcx, int srcy, int w, int h, int dstx, int dsty)
{
RegionPtr ret;
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst,
exaDrawableLocation(pSrc), exaDrawableLocation(pDst)));
exaPrepareAccess (pDst, EXA_PREPARE_DEST);
exaPrepareAccess (pSrc, EXA_PREPARE_SRC);
ret = fbCopyArea (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty);
exaFinishAccess (pSrc, EXA_PREPARE_SRC);
exaFinishAccess (pDst, EXA_PREPARE_DEST);
return ret;
}
RegionPtr
ExaCheckCopyPlane (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
int srcx, int srcy, int w, int h, int dstx, int dsty,
unsigned long bitPlane)
{
RegionPtr ret;
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst,
exaDrawableLocation(pSrc), exaDrawableLocation(pDst)));
exaPrepareAccess (pDst, EXA_PREPARE_DEST);
exaPrepareAccess (pSrc, EXA_PREPARE_SRC);
ret = fbCopyPlane (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty,
bitPlane);
exaFinishAccess (pSrc, EXA_PREPARE_SRC);
exaFinishAccess (pDst, EXA_PREPARE_DEST);
return ret;
}
void
ExaCheckPolyPoint (DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
DDXPointPtr pptInit)
{
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
fbPolyPoint (pDrawable, pGC, mode, npt, pptInit);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
ExaCheckPolylines (DrawablePtr pDrawable, GCPtr pGC,
int mode, int npt, DDXPointPtr ppt)
{
EXA_FALLBACK(("to %p (%c), width %d, mode %d, count %d\n",
pDrawable, exaDrawableLocation(pDrawable),
pGC->lineWidth, mode, npt));
if (pGC->lineWidth == 0) {
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
fbPolyLine (pDrawable, pGC, mode, npt, ppt);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
return;
}
/* fb calls mi functions in the lineWidth != 0 case. */
fbPolyLine (pDrawable, pGC, mode, npt, ppt);
}
void
ExaCheckPolySegment (DrawablePtr pDrawable, GCPtr pGC,
int nsegInit, xSegment *pSegInit)
{
EXA_FALLBACK(("to %p (%c) width %d, count %d\n", pDrawable,
exaDrawableLocation(pDrawable), pGC->lineWidth, nsegInit));
if (pGC->lineWidth == 0) {
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
fbPolySegment (pDrawable, pGC, nsegInit, pSegInit);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
return;
}
/* fb calls mi functions in the lineWidth != 0 case. */
fbPolySegment (pDrawable, pGC, nsegInit, pSegInit);
}
void
ExaCheckPolyArc (DrawablePtr pDrawable, GCPtr pGC,
int narcs, xArc *pArcs)
{
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
/* Disable this as fbPolyArc can call miZeroPolyArc which in turn
* can call accelerated functions, that as yet, haven't been notified
* with exaFinishAccess().
*/
#if 0
if (pGC->lineWidth == 0)
{
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
fbPolyArc (pDrawable, pGC, narcs, pArcs);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
return;
}
#endif
miPolyArc (pDrawable, pGC, narcs, pArcs);
}
void
ExaCheckPolyFillRect (DrawablePtr pDrawable, GCPtr pGC,
int nrect, xRectangle *prect)
{
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
fbPolyFillRect (pDrawable, pGC, nrect, prect);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
int x, int y, unsigned int nglyph,
CharInfoPtr *ppci, pointer pglyphBase)
{
EXA_FALLBACK(("to %p (%c)\n", pDrawable,
exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
fbImageGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
ExaCheckPolyGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
int x, int y, unsigned int nglyph,
CharInfoPtr *ppci, pointer pglyphBase)
{
EXA_FALLBACK(("to %p (%c), style %d alu %d\n", pDrawable,
exaDrawableLocation(pDrawable), pGC->fillStyle, pGC->alu));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccessGC (pGC);
fbPolyGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
ExaCheckPushPixels (GCPtr pGC, PixmapPtr pBitmap,
DrawablePtr pDrawable,
int w, int h, int x, int y)
{
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pBitmap, pDrawable,
exaDrawableLocation(&pBitmap->drawable),
exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccess (&pBitmap->drawable, EXA_PREPARE_SRC);
exaPrepareAccessGC (pGC);
fbPushPixels (pGC, pBitmap, pDrawable, w, h, x, y);
exaFinishAccessGC (pGC);
exaFinishAccess (&pBitmap->drawable, EXA_PREPARE_SRC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
void
ExaCheckGetSpans (DrawablePtr pDrawable,
int wMax,
DDXPointPtr ppt,
int *pwidth,
int nspans,
char *pdstStart)
{
EXA_FALLBACK(("from %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccess (pDrawable, EXA_PREPARE_SRC);
fbGetSpans (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
exaFinishAccess (pDrawable, EXA_PREPARE_SRC);
}
void
ExaCheckComposite (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
RegionRec region;
int xoff, yoff;
REGION_NULL(pScreen, &region);
if (!exaOpReadsDestination(op)) {
if (!miComputeCompositeRegion (&region, pSrc, pMask, pDst,
xSrc, ySrc, xMask, yMask, xDst, yDst,
width, height))
return;
exaGetDrawableDeltas (pDst->pDrawable,
exaGetDrawablePixmap(pDst->pDrawable),
&xoff, &yoff);
REGION_TRANSLATE(pScreen, &region, xoff, yoff);
exaPrepareAccessReg (pDst->pDrawable, EXA_PREPARE_DEST, &region);
} else
exaPrepareAccess (pDst->pDrawable, EXA_PREPARE_DEST);
EXA_FALLBACK(("from picts %p/%p to pict %p\n",
pSrc, pMask, pDst));
if (pSrc->pDrawable != NULL)
exaPrepareAccess (pSrc->pDrawable, EXA_PREPARE_SRC);
if (pMask && pMask->pDrawable != NULL)
exaPrepareAccess (pMask->pDrawable, EXA_PREPARE_MASK);
fbComposite (op,
pSrc,
pMask,
pDst,
xSrc,
ySrc,
xMask,
yMask,
xDst,
yDst,
width,
height);
if (pMask && pMask->pDrawable != NULL)
exaFinishAccess (pMask->pDrawable, EXA_PREPARE_MASK);
if (pSrc->pDrawable != NULL)
exaFinishAccess (pSrc->pDrawable, EXA_PREPARE_SRC);
exaFinishAccess (pDst->pDrawable, EXA_PREPARE_DEST);
REGION_UNINIT(pScreen, &region);
}
/**
* Gets the 0,0 pixel of a pixmap. Used for doing solid fills of tiled pixmaps
* that happen to be 1x1. Pixmap must be at least 8bpp.
*
* XXX This really belongs in fb, so it can be aware of tiling and etc.
*/
CARD32
exaGetPixmapFirstPixel (PixmapPtr pPixmap)
{
ExaScreenPriv(pPixmap->drawable.pScreen);
CARD32 pixel;
void *fb;
Bool need_finish = FALSE;
BoxRec box;
RegionRec migration;
ExaPixmapPriv (pPixmap);
Bool sys_valid = !miPointInRegion(&pExaPixmap->validSys, 0, 0, &box);
Bool damaged = miPointInRegion(DamageRegion(pExaPixmap->pDamage), 0, 0,
&box);
Bool offscreen = exaPixmapIsOffscreen(pPixmap);
fb = pExaPixmap->sys_ptr;
/* Try to avoid framebuffer readbacks */
if (pExaScr->info->CreatePixmap ||
(!offscreen && !sys_valid && !damaged) ||
(offscreen && (!sys_valid || damaged)))
{
box.x1 = 0;
box.y1 = 0;
box.x2 = 1;
box.y2 = 1;
REGION_INIT(pScreen, &migration, &box, 1);
need_finish = TRUE;
exaPrepareAccessReg(&pPixmap->drawable, EXA_PREPARE_SRC, &migration);
fb = pPixmap->devPrivate.ptr;
}
switch (pPixmap->drawable.bitsPerPixel) {
case 32:
pixel = *(CARD32 *)fb;
break;
case 16:
pixel = *(CARD16 *)fb;
break;
default:
pixel = *(CARD8 *)fb;
break;
}
if (need_finish) {
exaFinishAccess(&pPixmap->drawable, EXA_PREPARE_SRC);
REGION_UNINIT(pScreen, &migration);
}
return pixel;
}