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xserver/exa/exa_accel.c

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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 =
GetScratchPixmapHeader(pDrawable->pScreen, w, h, depth,
BitsPerPixel(depth), PixmapBytePad(w, depth),
(pointer)data);
if (!pPixmap)
return FALSE;
pGC->ops->CopyArea(&pPixmap->drawable, pDrawable, pGC, sx, sy, sw, sh,
dx, dy);
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;
int i;
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;
pExaPixmap = ExaGetPixmapPriv (pPixmap);
if (pExaPixmap->accel_blocked || pTileExaPixmap->accel_blocked)
{
return FALSE;
} else {
exaDoMigration (pixmaps, 2, TRUE);
}
pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff);
if (!pPixmap || !exaPixmapIsOffscreen(pTile))
return FALSE;
if ((*pExaScr->info->PrepareCopy) (pTile, pPixmap, 1, 1, alu, planemask))
{
if (xoff || yoff)
REGION_TRANSLATE(pScreen, pRegion, xoff, yoff);
for (i = 0; i < nbox; i++)
{
int height = pBox[i].y2 - pBox[i].y1;
int dstY = pBox[i].y1;
int tileY;
if (alu == GXcopy)
height = min(height, tileHeight);
modulus(dstY - yoff - pDrawable->y - pPatOrg->y, tileHeight, tileY);
while (height > 0) {
int width = pBox[i].x2 - pBox[i].x1;
int dstX = pBox[i].x1;
int tileX;
int h = tileHeight - tileY;
if (alu == GXcopy)
width = min(width, tileWidth);
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;
}
}
(*pExaScr->info->DoneCopy) (pPixmap);
/* With GXcopy, we only need to do the basic algorithm up to the tile
* size; then, we can just keep doubling the destination in each
* direction until it fills the box. This way, the number of copy
* operations is O(log(rx)) + O(log(ry)) instead of O(rx * ry), where
* rx/ry is the ratio between box and tile width/height. This can make
* a big difference if each driver copy incurs a significant constant
* overhead.
*/
if (alu != GXcopy)
ret = TRUE;
else if ((*pExaScr->info->PrepareCopy) (pPixmap, pPixmap, 1, 1, alu,
planemask)) {
for (i = 0; i < nbox; i++)
{
int dstX = pBox[i].x1 + tileWidth;
int dstY = pBox[i].y1 + tileHeight;
int width = min(pBox[i].x2 - dstX, tileWidth);
int height = min(pBox[i].y2 - pBox[i].y1, tileHeight);
while (dstX < pBox[i].x2) {
(*pExaScr->info->Copy) (pPixmap, pBox[i].x1, pBox[i].y1,
dstX, pBox[i].y1, width, height);
dstX += width;
width = min(pBox[i].x2 - dstX, width * 2);
}
width = pBox[i].x2 - pBox[i].x1;
height = min(pBox[i].y2 - dstY, tileHeight);
while (dstY < pBox[i].y2) {
(*pExaScr->info->Copy) (pPixmap, pBox[i].x1, pBox[i].y1,
pBox[i].x1, dstY, width, height);
dstY += height;
height = min(pBox[i].y2 - dstY, height * 2);
}
}
(*pExaScr->info->DoneCopy) (pPixmap);
ret = TRUE;
}
exaMarkSync(pDrawable->pScreen);
if (xoff || yoff)
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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