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xserver-multidpi/exa/exa_accel.c
Michel Dänzer 29586101dc EXA: Only record damage generated by rendering operations. 
Recording damage from other operations (e.g. creating a client damage record)
may confuse the migration code resulting in corruption.

Option "EXAOptimizeMigration" appears safe now, so enable it by default. Also
remove it from the manpage, as it should only be necessary on request in the
course of bug report diagnostics anymore.
2008-05-24 20:01:41 +02:00

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/*
* Copyright © 2001 Keith Packard
*
* Partly based on code that is Copyright © The XFree86 Project Inc.
*
* 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Michel Dänzer <michel@tungstengraphics.com>
*
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "exa_priv.h"
#include <X11/fonts/fontstruct.h>
#include "dixfontstr.h"
#include "exa.h"
#include "cw.h"
static void
exaFillSpans(DrawablePtr pDrawable, GCPtr pGC, int n,
DDXPointPtr ppt, int *pwidth, int fSorted)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv (pScreen);
RegionPtr pClip = fbGetCompositeClip(pGC);
PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
ExaPixmapPriv (pPixmap);
BoxPtr pextent, pbox;
int nbox;
int extentX1, extentX2, extentY1, extentY2;
int fullX1, fullX2, fullY1;
int partX1, partX2;
int off_x, off_y;
ExaMigrationRec pixmaps[1];
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = NULL;
if (pExaScr->swappedOut ||
pGC->fillStyle != FillSolid ||
pExaPixmap->accel_blocked)
{
ExaCheckFillSpans (pDrawable, pGC, n, ppt, pwidth, fSorted);
return;
} else {
exaDoMigration (pixmaps, 1, TRUE);
}
if (!(pPixmap = exaGetOffscreenPixmap (pDrawable, &off_x, &off_y)) ||
!(*pExaScr->info->PrepareSolid) (pPixmap,
pGC->alu,
pGC->planemask,
pGC->fgPixel))
{
ExaCheckFillSpans (pDrawable, pGC, n, ppt, pwidth, fSorted);
return;
}
pextent = REGION_EXTENTS(pGC->pScreen, pClip);
extentX1 = pextent->x1;
extentY1 = pextent->y1;
extentX2 = pextent->x2;
extentY2 = pextent->y2;
while (n--)
{
fullX1 = ppt->x;
fullY1 = ppt->y;
fullX2 = fullX1 + (int) *pwidth;
ppt++;
pwidth++;
if (fullY1 < extentY1 || extentY2 <= fullY1)
continue;
if (fullX1 < extentX1)
fullX1 = extentX1;
if (fullX2 > extentX2)
fullX2 = extentX2;
if (fullX1 >= fullX2)
continue;
nbox = REGION_NUM_RECTS (pClip);
if (nbox == 1)
{
(*pExaScr->info->Solid) (pPixmap,
fullX1 + off_x, fullY1 + off_y,
fullX2 + off_x, fullY1 + 1 + off_y);
}
else
{
pbox = REGION_RECTS(pClip);
while(nbox--)
{
if (pbox->y1 <= fullY1 && fullY1 < pbox->y2)
{
partX1 = pbox->x1;
if (partX1 < fullX1)
partX1 = fullX1;
partX2 = pbox->x2;
if (partX2 > fullX2)
partX2 = fullX2;
if (partX2 > partX1) {
(*pExaScr->info->Solid) (pPixmap,
partX1 + off_x, fullY1 + off_y,
partX2 + off_x, fullY1 + 1 + off_y);
}
}
pbox++;
}
}
}
(*pExaScr->info->DoneSolid) (pPixmap);
exaMarkSync(pScreen);
}
static Bool
exaDoPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth, int x, int y,
int w, int h, int format, char *bits, int src_stride)
{
ExaScreenPriv (pDrawable->pScreen);
PixmapPtr pPix = exaGetDrawablePixmap (pDrawable);
ExaPixmapPriv(pPix);
ExaMigrationRec pixmaps[1];
RegionPtr pClip;
BoxPtr pbox;
int nbox;
int xoff, yoff;
int bpp = pDrawable->bitsPerPixel;
Bool access_prepared = FALSE;
if (pExaPixmap->accel_blocked)
return FALSE;
/* Don't bother with under 8bpp, XYPixmaps. */
if (format != ZPixmap || bpp < 8)
return FALSE;
/* Only accelerate copies: no rop or planemask. */
if (!EXA_PM_IS_SOLID(pDrawable, pGC->planemask) || pGC->alu != GXcopy)
return FALSE;
if (pExaScr->swappedOut)
return FALSE;
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pPix;
pixmaps[0].pReg = DamagePendingRegion(pExaPixmap->pDamage);
exaDoMigration (pixmaps, 1, TRUE);
pPix = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff);
if (!pPix || !pExaScr->info->UploadToScreen)
return FALSE;
x += pDrawable->x;
y += pDrawable->y;
pClip = fbGetCompositeClip(pGC);
for (nbox = REGION_NUM_RECTS(pClip),
pbox = REGION_RECTS(pClip);
nbox--;
pbox++)
{
int x1 = x;
int y1 = y;
int x2 = x + w;
int y2 = y + h;
char *src;
Bool ok;
if (x1 < pbox->x1)
x1 = pbox->x1;
if (y1 < pbox->y1)
y1 = pbox->y1;
if (x2 > pbox->x2)
x2 = pbox->x2;
if (y2 > pbox->y2)
y2 = pbox->y2;
if (x1 >= x2 || y1 >= y2)
continue;
src = bits + (y1 - y) * src_stride + (x1 - x) * (bpp / 8);
ok = pExaScr->info->UploadToScreen(pPix, x1 + xoff, y1 + yoff,
x2 - x1, y2 - y1, src, src_stride);
/* If we fail to accelerate the upload, fall back to using unaccelerated
* fb calls.
*/
if (!ok) {
FbStip *dst;
FbStride dst_stride;
int dstBpp;
int dstXoff, dstYoff;
if (!access_prepared) {
ExaDoPrepareAccess(pDrawable, EXA_PREPARE_DEST);
access_prepared = TRUE;
}
fbGetStipDrawable(pDrawable, dst, dst_stride, dstBpp,
dstXoff, dstYoff);
fbBltStip((FbStip *)bits + (y1 - y) * (src_stride / sizeof(FbStip)),
src_stride / sizeof(FbStip),
(x1 - x) * dstBpp,
dst + (y1 + dstYoff) * dst_stride,
dst_stride,
(x1 + dstXoff) * dstBpp,
(x2 - x1) * dstBpp,
y2 - y1,
GXcopy, FB_ALLONES, dstBpp);
}
}
if (access_prepared)
exaFinishAccess(pDrawable, EXA_PREPARE_DEST);
else
exaMarkSync(pDrawable->pScreen);
return TRUE;
}
#ifdef MITSHM
static Bool
exaDoShmPutImage(DrawablePtr pDrawable, GCPtr pGC, int depth,
unsigned int format, int w, int h, int sx, int sy, int sw,
int sh, int dx, int dy, char *data)
{
int src_stride = PixmapBytePad(w, depth);
if (exaDoPutImage(pDrawable, pGC, depth, dx, dy, sw, sh, format, data +
sy * src_stride + sx * BitsPerPixel(depth) / 8,
src_stride))
return TRUE;
if (format == ZPixmap)
{
PixmapPtr pPixmap;
ExaPixmapPriv(exaGetDrawablePixmap(pDrawable));
pPixmap = GetScratchPixmapHeader(pDrawable->pScreen, w, h, depth,
BitsPerPixel(depth), PixmapBytePad(w, depth), (pointer)data);
if (!pPixmap)
return FALSE;
if (exaGCReadsDestination(pDrawable, pGC->planemask, pGC->fillStyle,
pGC->alu))
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
else
exaPrepareAccessReg (pDrawable, EXA_PREPARE_DEST,
DamagePendingRegion(pExaPixmap->pDamage));
fbCopyArea((DrawablePtr)pPixmap, pDrawable, pGC, sx, sy, sw, sh, dx, dy);
exaFinishAccess(pDrawable, EXA_PREPARE_DEST);
FreeScratchPixmapHeader(pPixmap);
return TRUE;
}
return FALSE;
}
/* The actual ShmPutImage isn't wrapped by the damage layer, so we need to
* inform any interested parties of the damage incurred to the drawable.
*
* We also need to set the pending damage to ensure correct migration in all
* cases.
*/
void
exaShmPutImage(DrawablePtr pDrawable, GCPtr pGC, int depth, unsigned int format,
int w, int h, int sx, int sy, int sw, int sh, int dx, int dy,
char *data)
{
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
ExaPixmapPriv(pPixmap);
BoxRec box = { .x1 = pDrawable->x + dx, .y1 = pDrawable->y + dy,
.x2 = pDrawable->x + dx + sw, .y2 = pDrawable->y + dy + sh };
RegionRec region;
int xoff, yoff;
RegionPtr pending_damage = DamagePendingRegion(pExaPixmap->pDamage);
REGION_INIT(pScreen, &region, &box, 1);
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
REGION_TRANSLATE(pScreen, &region, xoff, yoff);
REGION_UNION(pScreen, pending_damage, pending_damage, &region);
if (!exaDoShmPutImage(pDrawable, pGC, depth, format, w, h, sx, sy, sw, sh,
dx, dy, data)) {
if (exaGCReadsDestination(pDrawable, pGC->planemask, pGC->fillStyle,
pGC->alu))
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
else
exaPrepareAccessReg (pDrawable, EXA_PREPARE_DEST, &region);
fbShmPutImage(pDrawable, pGC, depth, format, w, h, sx, sy, sw, sh, dx, dy,
data);
exaFinishAccess(pDrawable, EXA_PREPARE_DEST);
}
REGION_TRANSLATE(pScreen, &region, -xoff, -yoff);
DamageDamageRegion(pDrawable, &region);
REGION_UNINIT(pScreen, &region);
}
ShmFuncs exaShmFuncs = { NULL, exaShmPutImage };
#endif
static void
exaPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth, int x, int y,
int w, int h, int leftPad, int format, char *bits)
{
#ifdef MITSHM
if (!exaDoShmPutImage(pDrawable, pGC, depth, format, w, h, 0, 0, w, h, x, y,
bits))
#else
if (!exaDoPutImage(pDrawable, pGC, depth, x, y, w, h, format, bits,
PixmapBytePad(w, pDrawable->depth)))
#endif
ExaCheckPutImage(pDrawable, pGC, depth, x, y, w, h, leftPad, format,
bits);
}
static Bool inline
exaCopyNtoNTwoDir (DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable,
GCPtr pGC, BoxPtr pbox, int nbox, int dx, int dy)
{
ExaScreenPriv (pDstDrawable->pScreen);
PixmapPtr pSrcPixmap, pDstPixmap;
int src_off_x, src_off_y, dst_off_x, dst_off_y;
int dirsetup;
/* Need to get both pixmaps to call the driver routines */
pSrcPixmap = exaGetOffscreenPixmap (pSrcDrawable, &src_off_x, &src_off_y);
pDstPixmap = exaGetOffscreenPixmap (pDstDrawable, &dst_off_x, &dst_off_y);
if (!pSrcPixmap || !pDstPixmap)
return FALSE;
/*
* Now the case of a chip that only supports xdir = ydir = 1 or
* xdir = ydir = -1, but we have xdir != ydir.
*/
dirsetup = 0; /* No direction set up yet. */
for (; nbox; pbox++, nbox--) {
if (dx >= 0 && (src_off_y + pbox->y1 + dy) != pbox->y1) {
/* Do a xdir = ydir = -1 blit instead. */
if (dirsetup != -1) {
if (dirsetup != 0)
pExaScr->info->DoneCopy(pDstPixmap);
dirsetup = -1;
if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap,
pDstPixmap,
-1, -1,
pGC ? pGC->alu : GXcopy,
pGC ? pGC->planemask :
FB_ALLONES))
return FALSE;
}
(*pExaScr->info->Copy)(pDstPixmap,
src_off_x + pbox->x1 + dx,
src_off_y + pbox->y1 + dy,
dst_off_x + pbox->x1,
dst_off_y + pbox->y1,
pbox->x2 - pbox->x1,
pbox->y2 - pbox->y1);
} else if (dx < 0 && (src_off_y + pbox->y1 + dy) != pbox->y1) {
/* Do a xdir = ydir = 1 blit instead. */
if (dirsetup != 1) {
if (dirsetup != 0)
pExaScr->info->DoneCopy(pDstPixmap);
dirsetup = 1;
if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap,
pDstPixmap,
1, 1,
pGC ? pGC->alu : GXcopy,
pGC ? pGC->planemask :
FB_ALLONES))
return FALSE;
}
(*pExaScr->info->Copy)(pDstPixmap,
src_off_x + pbox->x1 + dx,
src_off_y + pbox->y1 + dy,
dst_off_x + pbox->x1,
dst_off_y + pbox->y1,
pbox->x2 - pbox->x1,
pbox->y2 - pbox->y1);
} else if (dx >= 0) {
/*
* xdir = 1, ydir = -1.
* Perform line-by-line xdir = ydir = 1 blits, going up.
*/
int i;
if (dirsetup != 1) {
if (dirsetup != 0)
pExaScr->info->DoneCopy(pDstPixmap);
dirsetup = 1;
if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap,
pDstPixmap,
1, 1,
pGC ? pGC->alu : GXcopy,
pGC ? pGC->planemask :
FB_ALLONES))
return FALSE;
}
for (i = pbox->y2 - pbox->y1 - 1; i >= 0; i--)
(*pExaScr->info->Copy)(pDstPixmap,
src_off_x + pbox->x1 + dx,
src_off_y + pbox->y1 + dy + i,
dst_off_x + pbox->x1,
dst_off_y + pbox->y1 + i,
pbox->x2 - pbox->x1, 1);
} else {
/*
* xdir = -1, ydir = 1.
* Perform line-by-line xdir = ydir = -1 blits, going down.
*/
int i;
if (dirsetup != -1) {
if (dirsetup != 0)
pExaScr->info->DoneCopy(pDstPixmap);
dirsetup = -1;
if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap,
pDstPixmap,
-1, -1,
pGC ? pGC->alu : GXcopy,
pGC ? pGC->planemask :
FB_ALLONES))
return FALSE;
}
for (i = 0; i < pbox->y2 - pbox->y1; i++)
(*pExaScr->info->Copy)(pDstPixmap,
src_off_x + pbox->x1 + dx,
src_off_y + pbox->y1 + dy + i,
dst_off_x + pbox->x1,
dst_off_y + pbox->y1 + i,
pbox->x2 - pbox->x1, 1);
}
}
if (dirsetup != 0)
pExaScr->info->DoneCopy(pDstPixmap);
exaMarkSync(pDstDrawable->pScreen);
return TRUE;
}
void
exaCopyNtoN (DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
GCPtr pGC,
BoxPtr pbox,
int nbox,
int dx,
int dy,
Bool reverse,
Bool upsidedown,
Pixel bitplane,
void *closure)
{
ExaScreenPriv (pDstDrawable->pScreen);
PixmapPtr pSrcPixmap, pDstPixmap;
ExaPixmapPrivPtr pSrcExaPixmap, pDstExaPixmap;
int src_off_x, src_off_y;
int dst_off_x, dst_off_y;
ExaMigrationRec pixmaps[2];
RegionPtr srcregion = NULL, dstregion = NULL;
xRectangle *rects;
pSrcPixmap = exaGetDrawablePixmap (pSrcDrawable);
pDstPixmap = exaGetDrawablePixmap (pDstDrawable);
exaGetDrawableDeltas (pSrcDrawable, pSrcPixmap, &src_off_x, &src_off_y);
exaGetDrawableDeltas (pDstDrawable, pDstPixmap, &dst_off_x, &dst_off_y);
rects = xalloc(nbox * sizeof(xRectangle));
if (rects) {
int i;
for (i = 0; i < nbox; i++) {
rects[i].x = pbox[i].x1 + dx + src_off_x;
rects[i].y = pbox[i].y1 + dy + src_off_y;
rects[i].width = pbox[i].x2 - pbox[i].x1;
rects[i].height = pbox[i].y2 - pbox[i].y1;
}
srcregion = RECTS_TO_REGION(pScreen, nbox, rects, CT_YXBANDED);
xfree(rects);
if (!pGC || !exaGCReadsDestination(pDstDrawable, pGC->planemask,
pGC->fillStyle, pGC->alu)) {
dstregion = REGION_CREATE(pScreen, NullBox, 0);
REGION_COPY(pScreen, dstregion, srcregion);
REGION_TRANSLATE(pScreen, dstregion, dst_off_x - dx - src_off_x,
dst_off_y - dy - src_off_y);
}
}
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pDstPixmap;
pixmaps[0].pReg = dstregion;
pixmaps[1].as_dst = FALSE;
pixmaps[1].as_src = TRUE;
pixmaps[1].pPix = pSrcPixmap;
pixmaps[1].pReg = srcregion;
pSrcExaPixmap = ExaGetPixmapPriv (pSrcPixmap);
pDstExaPixmap = ExaGetPixmapPriv (pDstPixmap);
/* Check whether the accelerator can use this pixmap.
* If the pitch of the pixmaps is out of range, there's nothing
* we can do but fall back to software rendering.
*/
if (pSrcExaPixmap->accel_blocked & EXA_RANGE_PITCH ||
pDstExaPixmap->accel_blocked & EXA_RANGE_PITCH)
goto fallback;
/* If the width or the height of either of the pixmaps
* is out of range, check whether the boxes are actually out of the
* addressable range as well. If they aren't, we can still do
* the copying in hardware.
*/
if (pSrcExaPixmap->accel_blocked || pDstExaPixmap->accel_blocked) {
int i;
for (i = 0; i < nbox; i++) {
/* src */
if ((pbox[i].x2 + dx + src_off_x) >= pExaScr->info->maxX ||
(pbox[i].y2 + dy + src_off_y) >= pExaScr->info->maxY)
goto fallback;
/* dst */
if ((pbox[i].x2 + dst_off_x) >= pExaScr->info->maxX ||
(pbox[i].y2 + dst_off_y) >= pExaScr->info->maxY)
goto fallback;
}
}
exaDoMigration (pixmaps, 2, TRUE);
/* Mixed directions must be handled specially if the card is lame */
if ((pExaScr->info->flags & EXA_TWO_BITBLT_DIRECTIONS) &&
reverse != upsidedown) {
if (exaCopyNtoNTwoDir(pSrcDrawable, pDstDrawable, pGC, pbox, nbox,
dx, dy))
goto out;
goto fallback;
}
if (!exaPixmapIsOffscreen(pSrcPixmap) ||
!exaPixmapIsOffscreen(pDstPixmap) ||
!(*pExaScr->info->PrepareCopy) (pSrcPixmap, pDstPixmap, reverse ? -1 : 1,
upsidedown ? -1 : 1,
pGC ? pGC->alu : GXcopy,
pGC ? pGC->planemask : FB_ALLONES)) {
goto fallback;
}
while (nbox--)
{
(*pExaScr->info->Copy) (pDstPixmap,
pbox->x1 + dx + src_off_x,
pbox->y1 + dy + src_off_y,
pbox->x1 + dst_off_x, pbox->y1 + dst_off_y,
pbox->x2 - pbox->x1, pbox->y2 - pbox->y1);
pbox++;
}
(*pExaScr->info->DoneCopy) (pDstPixmap);
exaMarkSync (pDstDrawable->pScreen);
goto out;
fallback:
EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrcDrawable, pDstDrawable,
exaDrawableLocation(pSrcDrawable),
exaDrawableLocation(pDstDrawable)));
exaPrepareAccessReg (pDstDrawable, EXA_PREPARE_DEST, dstregion);
exaPrepareAccessReg (pSrcDrawable, EXA_PREPARE_SRC, srcregion);
fbCopyNtoN (pSrcDrawable, pDstDrawable, pGC, pbox, nbox, dx, dy, reverse,
upsidedown, bitplane, closure);
exaFinishAccess (pSrcDrawable, EXA_PREPARE_SRC);
exaFinishAccess (pDstDrawable, EXA_PREPARE_DEST);
out:
if (dstregion) {
REGION_UNINIT(pScreen, dstregion);
REGION_DESTROY(pScreen, dstregion);
}
if (srcregion) {
REGION_UNINIT(pScreen, srcregion);
REGION_DESTROY(pScreen, srcregion);
}
}
RegionPtr
exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC,
int srcx, int srcy, int width, int height, int dstx, int dsty)
{
ExaScreenPriv (pDstDrawable->pScreen);
if (pExaScr->swappedOut) {
return ExaCheckCopyArea(pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height, dstx, dsty);
}
return fbDoCopy (pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height,
dstx, dsty, exaCopyNtoN, 0, NULL);
}
static void
exaPolyPoint(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
DDXPointPtr ppt)
{
int i;
xRectangle *prect;
/* If we can't reuse the current GC as is, don't bother accelerating the
* points.
*/
if (pGC->fillStyle != FillSolid) {
ExaCheckPolyPoint(pDrawable, pGC, mode, npt, ppt);
return;
}
prect = xalloc(sizeof(xRectangle) * npt);
for (i = 0; i < npt; i++) {
prect[i].x = ppt[i].x;
prect[i].y = ppt[i].y;
if (i > 0 && mode == CoordModePrevious) {
prect[i].x += prect[i - 1].x;
prect[i].y += prect[i - 1].y;
}
prect[i].width = 1;
prect[i].height = 1;
}
pGC->ops->PolyFillRect(pDrawable, pGC, npt, prect);
xfree(prect);
}
/**
* exaPolylines() checks if it can accelerate the lines as a group of
* horizontal or vertical lines (rectangles), and uses existing rectangle fill
* acceleration if so.
*/
static void
exaPolylines(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
DDXPointPtr ppt)
{
xRectangle *prect;
int x1, x2, y1, y2;
int i;
/* Don't try to do wide lines or non-solid fill style. */
if (pGC->lineWidth != 0 || pGC->lineStyle != LineSolid ||
pGC->fillStyle != FillSolid) {
ExaCheckPolylines(pDrawable, pGC, mode, npt, ppt);
return;
}
prect = xalloc(sizeof(xRectangle) * (npt - 1));
x1 = ppt[0].x;
y1 = ppt[0].y;
/* If we have any non-horizontal/vertical, fall back. */
for (i = 0; i < npt - 1; i++) {
if (mode == CoordModePrevious) {
x2 = x1 + ppt[i + 1].x;
y2 = y1 + ppt[i + 1].y;
} else {
x2 = ppt[i + 1].x;
y2 = ppt[i + 1].y;
}
if (x1 != x2 && y1 != y2) {
xfree(prect);
ExaCheckPolylines(pDrawable, pGC, mode, npt, ppt);
return;
}
if (x1 < x2) {
prect[i].x = x1;
prect[i].width = x2 - x1 + 1;
} else {
prect[i].x = x2;
prect[i].width = x1 - x2 + 1;
}
if (y1 < y2) {
prect[i].y = y1;
prect[i].height = y2 - y1 + 1;
} else {
prect[i].y = y2;
prect[i].height = y1 - y2 + 1;
}
x1 = x2;
y1 = y2;
}
pGC->ops->PolyFillRect(pDrawable, pGC, npt - 1, prect);
xfree(prect);
}
/**
* exaPolySegment() checks if it can accelerate the lines as a group of
* horizontal or vertical lines (rectangles), and uses existing rectangle fill
* acceleration if so.
*/
static void
exaPolySegment (DrawablePtr pDrawable, GCPtr pGC, int nseg,
xSegment *pSeg)
{
xRectangle *prect;
int i;
/* Don't try to do wide lines or non-solid fill style. */
if (pGC->lineWidth != 0 || pGC->lineStyle != LineSolid ||
pGC->fillStyle != FillSolid)
{
ExaCheckPolySegment(pDrawable, pGC, nseg, pSeg);
return;
}
/* If we have any non-horizontal/vertical, fall back. */
for (i = 0; i < nseg; i++) {
if (pSeg[i].x1 != pSeg[i].x2 && pSeg[i].y1 != pSeg[i].y2) {
ExaCheckPolySegment(pDrawable, pGC, nseg, pSeg);
return;
}
}
prect = xalloc(sizeof(xRectangle) * nseg);
for (i = 0; i < nseg; i++) {
if (pSeg[i].x1 < pSeg[i].x2) {
prect[i].x = pSeg[i].x1;
prect[i].width = pSeg[i].x2 - pSeg[i].x1 + 1;
} else {
prect[i].x = pSeg[i].x2;
prect[i].width = pSeg[i].x1 - pSeg[i].x2 + 1;
}
if (pSeg[i].y1 < pSeg[i].y2) {
prect[i].y = pSeg[i].y1;
prect[i].height = pSeg[i].y2 - pSeg[i].y1 + 1;
} else {
prect[i].y = pSeg[i].y2;
prect[i].height = pSeg[i].y1 - pSeg[i].y2 + 1;
}
/* don't paint last pixel */
if (pGC->capStyle == CapNotLast) {
if (prect[i].width == 1)
prect[i].height--;
else
prect[i].width--;
}
}
pGC->ops->PolyFillRect(pDrawable, pGC, nseg, prect);
xfree(prect);
}
static Bool exaFillRegionSolid (DrawablePtr pDrawable, RegionPtr pRegion,
Pixel pixel, CARD32 planemask, CARD32 alu);
static void
exaPolyFillRect(DrawablePtr pDrawable,
GCPtr pGC,
int nrect,
xRectangle *prect)
{
ExaScreenPriv (pDrawable->pScreen);
RegionPtr pClip = fbGetCompositeClip(pGC);
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
ExaPixmapPriv (pPixmap);
register BoxPtr pbox;
BoxPtr pextent;
int extentX1, extentX2, extentY1, extentY2;
int fullX1, fullX2, fullY1, fullY2;
int partX1, partX2, partY1, partY2;
int xoff, yoff;
int xorg, yorg;
int n;
ExaMigrationRec pixmaps[2];
RegionPtr pReg = RECTS_TO_REGION(pScreen, nrect, prect, CT_UNSORTED);
/* Compute intersection of rects and clip region */
REGION_TRANSLATE(pScreen, pReg, pDrawable->x, pDrawable->y);
REGION_INTERSECT(pScreen, pReg, pClip, pReg);
if (!REGION_NUM_RECTS(pReg)) {
goto out;
}
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = NULL;
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
if (pExaScr->swappedOut || pExaPixmap->accel_blocked)
{
goto fallback;
}
/* For ROPs where overlaps don't matter, convert rectangles to region and
* call exaFillRegion{Solid,Tiled}.
*/
if ((pGC->fillStyle == FillSolid || pGC->fillStyle == FillTiled) &&
(nrect == 1 || pGC->alu == GXcopy || pGC->alu == GXclear ||
pGC->alu == GXnoop || pGC->alu == GXcopyInverted ||
pGC->alu == GXset)) {
if (((pGC->fillStyle == FillSolid || pGC->tileIsPixel) &&
exaFillRegionSolid(pDrawable, pReg, pGC->fillStyle == FillSolid ?
pGC->fgPixel : pGC->tile.pixel, pGC->planemask,
pGC->alu)) ||
(pGC->fillStyle == FillTiled && !pGC->tileIsPixel &&
exaFillRegionTiled(pDrawable, pReg, pGC->tile.pixmap, &pGC->patOrg,
pGC->planemask, pGC->alu))) {
goto out;
}
}
if (pGC->fillStyle != FillSolid &&
!(pGC->tileIsPixel && pGC->fillStyle == FillTiled))
{
goto fallback;
}
exaDoMigration (pixmaps, 1, TRUE);
if (!exaPixmapIsOffscreen (pPixmap) ||
!(*pExaScr->info->PrepareSolid) (pPixmap,
pGC->alu,
pGC->planemask,
pGC->fgPixel))
{
fallback:
ExaCheckPolyFillRect (pDrawable, pGC, nrect, prect);
goto out;
}
xorg = pDrawable->x;
yorg = pDrawable->y;
pextent = REGION_EXTENTS(pGC->pScreen, pClip);
extentX1 = pextent->x1;
extentY1 = pextent->y1;
extentX2 = pextent->x2;
extentY2 = pextent->y2;
while (nrect--)
{
fullX1 = prect->x + xorg;
fullY1 = prect->y + yorg;
fullX2 = fullX1 + (int) prect->width;
fullY2 = fullY1 + (int) prect->height;
prect++;
if (fullX1 < extentX1)
fullX1 = extentX1;
if (fullY1 < extentY1)
fullY1 = extentY1;
if (fullX2 > extentX2)
fullX2 = extentX2;
if (fullY2 > extentY2)
fullY2 = extentY2;
if ((fullX1 >= fullX2) || (fullY1 >= fullY2))
continue;
n = REGION_NUM_RECTS (pClip);
if (n == 1)
{
(*pExaScr->info->Solid) (pPixmap,
fullX1 + xoff, fullY1 + yoff,
fullX2 + xoff, fullY2 + yoff);
}
else
{
pbox = REGION_RECTS(pClip);
/*
* clip the rectangle to each box in the clip region
* this is logically equivalent to calling Intersect(),
* but rectangles may overlap each other here.
*/
while(n--)
{
partX1 = pbox->x1;
if (partX1 < fullX1)
partX1 = fullX1;
partY1 = pbox->y1;
if (partY1 < fullY1)
partY1 = fullY1;
partX2 = pbox->x2;
if (partX2 > fullX2)
partX2 = fullX2;
partY2 = pbox->y2;
if (partY2 > fullY2)
partY2 = fullY2;
pbox++;
if (partX1 < partX2 && partY1 < partY2) {
(*pExaScr->info->Solid) (pPixmap,
partX1 + xoff, partY1 + yoff,
partX2 + xoff, partY2 + yoff);
}
}
}
}
(*pExaScr->info->DoneSolid) (pPixmap);
exaMarkSync(pDrawable->pScreen);
out:
REGION_UNINIT(pScreen, pReg);
REGION_DESTROY(pScreen, pReg);
}
static void
exaImageGlyphBlt (DrawablePtr pDrawable,
GCPtr pGC,
int x,
int y,
unsigned int nglyph,
CharInfoPtr *ppciInit,
pointer pglyphBase)
{
FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
CharInfoPtr *ppci;
CharInfoPtr pci;
unsigned char *pglyph; /* pointer bits in glyph */
int gWidth, gHeight; /* width and height of glyph */
FbStride gStride; /* stride of glyph */
Bool opaque;
int gx, gy;
void (*glyph) (FbBits *,
FbStride,
int,
FbStip *,
FbBits,
int,
int);
FbBits *dst;
FbStride dstStride;
int dstBpp;
int dstXoff, dstYoff;
FbBits depthMask;
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
ExaPixmapPriv(pPixmap);
RegionPtr pending_damage = DamagePendingRegion(pExaPixmap->pDamage);
BoxRec extents = *REGION_EXTENTS(pScreen, pending_damage);
int xoff, yoff;
if (extents.x1 >= extents.x2 || extents.y1 >= extents.y2)
return;
depthMask = FbFullMask(pDrawable->depth);
if ((pGC->planemask & depthMask) != depthMask)
{
ExaCheckImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppciInit, pglyphBase);
return;
}
glyph = NULL;
switch (pDrawable->bitsPerPixel) {
case 8: glyph = fbGlyph8; break;
case 16: glyph = fbGlyph16; break;
case 24: glyph = fbGlyph24; break;
case 32: glyph = fbGlyph32; break;
}
x += pDrawable->x;
y += pDrawable->y;
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
extents.x1 -= xoff;
extents.x2 -= xoff;
extents.y1 -= yoff;
extents.y2 -= yoff;
exaPrepareAccessReg (pDrawable, EXA_PREPARE_DEST, pending_damage);
if (TERMINALFONT (pGC->font) && !glyph)
{
opaque = TRUE;
}
else
{
FbBits fg = fbReplicatePixel (pGC->bgPixel, pDrawable->bitsPerPixel);
fbSolidBoxClipped (pDrawable,
fbGetCompositeClip(pGC),
extents.x1,
extents.y1,
extents.x2,
extents.y2,
fbAnd (GXcopy, fg, pGC->planemask),
fbXor (GXcopy, fg, pGC->planemask));
opaque = FALSE;
}
EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
exaPrepareAccessGC (pGC);
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
for (ppci = ppciInit; nglyph; nglyph--, x += pci->metrics.characterWidth)
{
pci = *ppci++;
gWidth = GLYPHWIDTHPIXELS(pci);
gHeight = GLYPHHEIGHTPIXELS(pci);
gx = x + pci->metrics.leftSideBearing;
gy = y - pci->metrics.ascent;
if (!gWidth || !gHeight || (gx + gWidth) <= extents.x1 ||
(gy + gHeight) <= extents.y1 || gx >= extents.x2 ||
gy >= extents.y2)
continue;
pglyph = FONTGLYPHBITS(pglyphBase, pci);
if (glyph && gWidth <= sizeof (FbStip) * 8 &&
fbGlyphIn (fbGetCompositeClip(pGC), gx, gy, gWidth, gHeight))
{
(*glyph) (dst + (gy + dstYoff) * dstStride, dstStride, dstBpp,
(FbStip *) pglyph, pPriv->fg, gx + dstXoff, gHeight);
}
else
{
RegionPtr pClip = fbGetCompositeClip(pGC);
gStride = GLYPHWIDTHBYTESPADDED(pci) / sizeof (FbStip);
fbPutXYImage (pDrawable, pClip, pPriv->fg, pPriv->bg, pPriv->pm,
GXcopy, opaque, gx, gy, gWidth, gHeight,
(FbStip *) pglyph, gStride, 0);
}
}
exaFinishAccessGC (pGC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
const GCOps exaOps = {
exaFillSpans,
ExaCheckSetSpans,
exaPutImage,
exaCopyArea,
ExaCheckCopyPlane,
exaPolyPoint,
exaPolylines,
exaPolySegment,
miPolyRectangle,
ExaCheckPolyArc,
miFillPolygon,
exaPolyFillRect,
miPolyFillArc,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
exaImageGlyphBlt,
ExaCheckPolyGlyphBlt,
ExaCheckPushPixels,
};
void
exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
{
RegionRec rgnDst;
int dx, dy;
PixmapPtr pPixmap = (*pWin->drawable.pScreen->GetWindowPixmap) (pWin);
dx = ptOldOrg.x - pWin->drawable.x;
dy = ptOldOrg.y - pWin->drawable.y;
REGION_TRANSLATE(pWin->drawable.pScreen, prgnSrc, -dx, -dy);
REGION_INIT (pWin->drawable.pScreen, &rgnDst, NullBox, 0);
REGION_INTERSECT(pWin->drawable.pScreen, &rgnDst, &pWin->borderClip, prgnSrc);
#ifdef COMPOSITE
if (pPixmap->screen_x || pPixmap->screen_y)
REGION_TRANSLATE (pWin->drawable.pScreen, &rgnDst,
-pPixmap->screen_x, -pPixmap->screen_y);
#endif
fbCopyRegion (&pPixmap->drawable, &pPixmap->drawable,
NULL,
&rgnDst, dx, dy, exaCopyNtoN, 0, NULL);
REGION_UNINIT(pWin->drawable.pScreen, &rgnDst);
}
static Bool
exaFillRegionSolid (DrawablePtr pDrawable,
RegionPtr pRegion,
Pixel pixel,
CARD32 planemask,
CARD32 alu)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
ExaPixmapPriv (pPixmap);
int xoff, yoff;
ExaMigrationRec pixmaps[1];
Bool ret = FALSE;
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = exaGCReadsDestination(pDrawable, planemask, FillSolid,
alu) ? NULL : pRegion;
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
REGION_TRANSLATE(pScreen, pRegion, xoff, yoff);
if (pExaPixmap->accel_blocked)
{
goto out;
} else {
exaDoMigration (pixmaps, 1, TRUE);
}
if (exaPixmapIsOffscreen (pPixmap) &&
(*pExaScr->info->PrepareSolid) (pPixmap, alu, planemask, pixel))
{
int nbox;
BoxPtr pBox;
nbox = REGION_NUM_RECTS (pRegion);
pBox = REGION_RECTS (pRegion);
while (nbox--)
{
(*pExaScr->info->Solid) (pPixmap, pBox->x1, pBox->y1, pBox->x2,
pBox->y2);
pBox++;
}
(*pExaScr->info->DoneSolid) (pPixmap);
exaMarkSync(pDrawable->pScreen);
if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS) &&
pDrawable->width == 1 && pDrawable->height == 1 &&
pDrawable->bitsPerPixel != 24) {
ExaPixmapPriv(pPixmap);
switch (pDrawable->bitsPerPixel) {
case 32:
*(CARD32*)pExaPixmap->sys_ptr = pixel;
break;
case 16:
*(CARD16*)pExaPixmap->sys_ptr = pixel;
break;
case 8:
*(CARD8*)pExaPixmap->sys_ptr = pixel;
}
REGION_UNION(pScreen, &pExaPixmap->validSys, &pExaPixmap->validSys,
pRegion);
}
ret = TRUE;
}
out:
REGION_TRANSLATE(pScreen, pRegion, -xoff, -yoff);
return ret;
}
/* Try to do an accelerated tile of the pTile into pRegion of pDrawable.
* Based on fbFillRegionTiled(), fbTile().
*/
Bool
exaFillRegionTiled (DrawablePtr pDrawable,
RegionPtr pRegion,
PixmapPtr pTile,
DDXPointPtr pPatOrg,
CARD32 planemask,
CARD32 alu)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
ExaPixmapPrivPtr pTileExaPixmap = ExaGetPixmapPriv(pTile);
int xoff, yoff;
int tileWidth, tileHeight;
ExaMigrationRec pixmaps[2];
int nbox = REGION_NUM_RECTS (pRegion);
BoxPtr pBox = REGION_RECTS (pRegion);
Bool ret = FALSE;
tileWidth = pTile->drawable.width;
tileHeight = pTile->drawable.height;
/* If we're filling with a solid color, grab it out and go to
* FillRegionSolid, saving numerous copies.
*/
if (tileWidth == 1 && tileHeight == 1)
return exaFillRegionSolid(pDrawable, pRegion,
exaGetPixmapFirstPixel (pTile), planemask,
alu);
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pPixmap = exaGetDrawablePixmap (pDrawable);
pixmaps[0].pReg = exaGCReadsDestination(pDrawable, planemask, FillTiled,
alu) ? NULL : pRegion;
pixmaps[1].as_dst = FALSE;
pixmaps[1].as_src = TRUE;
pixmaps[1].pPix = pTile;
pixmaps[1].pReg = NULL;
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
REGION_TRANSLATE(pScreen, pRegion, xoff, yoff);
pExaPixmap = ExaGetPixmapPriv (pPixmap);
if (pExaPixmap->accel_blocked || pTileExaPixmap->accel_blocked)
{
goto out;
} else {
exaDoMigration (pixmaps, 2, TRUE);
}
pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff);
if (!pPixmap || !exaPixmapIsOffscreen(pTile))
goto out;
if ((*pExaScr->info->PrepareCopy) (pTile, pPixmap, 1, 1, alu, planemask))
{
while (nbox--)
{
int height = pBox->y2 - pBox->y1;
int dstY = pBox->y1;
int tileY;
modulus(dstY - yoff - pDrawable->y - pPatOrg->y, tileHeight, tileY);
while (height > 0) {
int width = pBox->x2 - pBox->x1;
int dstX = pBox->x1;
int tileX;
int h = tileHeight - tileY;
if (h > height)
h = height;
height -= h;
modulus(dstX - xoff - pDrawable->x - pPatOrg->x, tileWidth,
tileX);
while (width > 0) {
int w = tileWidth - tileX;
if (w > width)
w = width;
width -= w;
(*pExaScr->info->Copy) (pPixmap, tileX, tileY, dstX, dstY,
w, h);
dstX += w;
tileX = 0;
}
dstY += h;
tileY = 0;
}
pBox++;
}
(*pExaScr->info->DoneCopy) (pPixmap);
exaMarkSync(pDrawable->pScreen);
ret = TRUE;
}
out:
REGION_TRANSLATE(pScreen, pRegion, -xoff, -yoff);
return ret;
}
/**
* Accelerates GetImage for solid ZPixmap downloads from framebuffer memory.
*
* This is probably the only case we actually care about. The rest fall through
* to migration and fbGetImage, which hopefully will result in migration pushing
* the pixmap out of framebuffer.
*/
void
exaGetImage (DrawablePtr pDrawable, int x, int y, int w, int h,
unsigned int format, unsigned long planeMask, char *d)
{
ExaScreenPriv (pDrawable->pScreen);
ExaMigrationRec pixmaps[1];
BoxRec Box;
RegionRec Reg;
PixmapPtr pPix;
int xoff, yoff;
Bool ok;
pixmaps[0].as_dst = FALSE;
pixmaps[0].as_src = TRUE;
pixmaps[0].pPix = pPix = exaGetDrawablePixmap (pDrawable);
pixmaps[0].pReg = &Reg;
exaGetDrawableDeltas (pDrawable, pPix, &xoff, &yoff);
Box.x1 = pDrawable->y + x + xoff;
Box.y1 = pDrawable->y + y + yoff;
Box.x2 = Box.x1 + w;
Box.y2 = Box.y1 + h;
REGION_INIT(pScreen, &Reg, &Box, 1);
if (pExaScr->swappedOut)
goto fallback;
exaDoMigration(pixmaps, 1, FALSE);
pPix = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff);
if (pPix == NULL || pExaScr->info->DownloadFromScreen == NULL)
goto fallback;
/* Only cover the ZPixmap, solid copy case. */
if (format != ZPixmap || !EXA_PM_IS_SOLID(pDrawable, planeMask))
goto fallback;
/* Only try to handle the 8bpp and up cases, since we don't want to think
* about <8bpp.
*/
if (pDrawable->bitsPerPixel < 8)
goto fallback;
ok = pExaScr->info->DownloadFromScreen(pPix, pDrawable->x + x + xoff,
pDrawable->y + y + yoff, w, h, d,
PixmapBytePad(w, pDrawable->depth));
if (ok) {
exaWaitSync(pDrawable->pScreen);
goto out;
}
fallback:
EXA_FALLBACK(("from %p (%c)\n", pDrawable,
exaDrawableLocation(pDrawable)));
exaPrepareAccessReg (pDrawable, EXA_PREPARE_SRC, &Reg);
fbGetImage (pDrawable, x, y, w, h, format, planeMask, d);
exaFinishAccess (pDrawable, EXA_PREPARE_SRC);
out:
REGION_UNINIT(pScreen, &Reg);
}
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