/**
* Copies out important pixmap data and removes references to framebuffer area.
* Called when the memory manager decides it's time to kick the pixmap out of
* framebuffer entirely.
*/
void
exaPixmapSave (ScreenPtr pScreen, ExaOffscreenArea *area)
{
PixmapPtr pPixmap = area->privData;
ExaPixmapPriv(pPixmap);
RegionPtr pDamageReg = DamageRegion(pExaPixmap->pDamage);
DBG_MIGRATE (("Save %p (%p) (%dx%d) (%c)\n", pPixmap,
(void*)(ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height,
exaPixmapIsDirty(pPixmap) ? 'd' : 'c'));
if (exaPixmapIsOffscreen(pPixmap)) {
exaCopyDirtyToSys (pPixmap);
pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
pPixmap->devKind = pExaPixmap->sys_pitch;
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
}
pExaPixmap->fb_ptr = NULL;
pExaPixmap->area = NULL;
/* Mark all valid bits as damaged, so they'll get copied to FB next time */
REGION_UNION(pPixmap->drawable.pScreen, pDamageReg, pDamageReg,
&pExaPixmap->validReg);
}
/**
* Switches the current active location of the pixmap to system memory, copying
* updated data out if necessary.
*/
static void
exaDoMoveOutPixmap(ExaMigrationPtr migrate)
{
PixmapPtr pPixmap = migrate->pPix;
ExaPixmapPriv(pPixmap);
if (!pExaPixmap->area || exaPixmapIsPinned(pPixmap))
return;
exaCopyDirtyToSys(migrate);
if (exaPixmapHasGpuCopy(pPixmap)) {
DBG_MIGRATE(("<- %p (%p) (%dx%d) (%c)\n", pPixmap,
(void *) (ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height,
exaPixmapIsDirty(pPixmap) ? 'd' : 'c'));
pExaPixmap->use_gpu_copy = FALSE;
pPixmap->devKind = pExaPixmap->sys_pitch;
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
}
}
/**
* Allocates a framebuffer copy of the pixmap if necessary, and then copies
* any necessary pixmap data into the framebuffer copy and points the pixmap at
* it.
*
* Note that when first allocated, a pixmap will have FALSE dirty flag.
* This is intentional because pixmap data starts out undefined. So if we move
* it in due to the first operation against it being accelerated, it will have
* undefined framebuffer contents that we didn't have to upload. If we do
* moveouts (and moveins) after the first movein, then we will only have to copy
* back and forth if the pixmap was written to after the last synchronization of
* the two copies. Then, at exaPixmapSave (when the framebuffer copy goes away)
* we mark the pixmap dirty, so that the next exaMoveInPixmap will actually move
* all the data, since it's almost surely all valid now.
*/
static void
exaDoMoveInPixmap(ExaMigrationPtr migrate)
{
PixmapPtr pPixmap = migrate->pPix;
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv(pScreen);
ExaPixmapPriv(pPixmap);
/* If we're VT-switched away, no touching card memory allowed. */
if (pExaScr->swappedOut)
return;
/* If we're not allowed to move, then fail. */
if (exaPixmapIsPinned(pPixmap))
return;
/* Don't migrate in pixmaps which are less than 8bpp. This avoids a lot of
* fragility in EXA, and <8bpp is probably not used enough any more to care
* (at least, not in acceleratd paths).
*/
if (pPixmap->drawable.bitsPerPixel < 8)
return;
if (pExaPixmap->accel_blocked)
return;
if (pExaPixmap->area == NULL) {
pExaPixmap->area =
exaOffscreenAlloc(pScreen, pExaPixmap->fb_size,
pExaScr->info->pixmapOffsetAlign, FALSE,
exaPixmapSave, (pointer) pPixmap);
if (pExaPixmap->area == NULL)
return;
pExaPixmap->fb_ptr = (CARD8 *) pExaScr->info->memoryBase +
pExaPixmap->area->offset;
}
exaCopyDirtyToFb(migrate);
if (exaPixmapHasGpuCopy(pPixmap))
return;
DBG_MIGRATE(("-> %p (0x%x) (%dx%d) (%c)\n", pPixmap,
(ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height,
exaPixmapIsDirty(pPixmap) ? 'd' : 'c'));
pExaPixmap->use_gpu_copy = TRUE;
pPixmap->devKind = pExaPixmap->fb_pitch;
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
}
/**
* exaFinishAccess() is EXA's wrapper for the driver's FinishAccess() handler.
*
* It deals with calling the driver's FinishAccess() only if necessary.
*/
void
exaFinishAccess(DrawablePtr pDrawable, int index)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv (pScreen);
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
pPixmap = exaGetDrawablePixmap (pDrawable);
pExaPixmap = ExaGetPixmapPriv(pPixmap);
/* Rehide pixmap pointer if we're doing that. */
if (pExaPixmap != NULL && pExaScr->hideOffscreenPixmapData &&
pExaPixmap->fb_ptr == pPixmap->devPrivate.ptr)
{
pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr;
}
if (pExaScr->info->FinishAccess == NULL)
return;
if (!exaPixmapIsOffscreen (pPixmap))
return;
(*pExaScr->info->FinishAccess) (pPixmap, index);
}
/**
* exaCreatePixmap() creates a new pixmap.
*
* If width and height are 0, this won't be a full-fledged pixmap and it will
* get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because
* ModifyPixmapHeader() would break migration. These types of pixmaps are used
* for scratch pixmaps, or to represent the visible screen.
*/
static PixmapPtr
exaCreatePixmap(ScreenPtr pScreen, int w, int h, int depth)
{
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
int bpp;
ExaScreenPriv(pScreen);
if (w > 32767 || h > 32767)
return NullPixmap;
pPixmap = fbCreatePixmap (pScreen, w, h, depth);
if (!pPixmap)
return NULL;
pExaPixmap = ExaGetPixmapPriv(pPixmap);
bpp = pPixmap->drawable.bitsPerPixel;
/* Glyphs have w/h equal to zero, and may not be migrated. See exaGlyphs. */
if (!w || !h)
pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
else
pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
pExaPixmap->area = NULL;
pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
pExaPixmap->sys_pitch = pPixmap->devKind;
pExaPixmap->fb_ptr = NULL;
if (pExaScr->info->flags & EXA_OFFSCREEN_ALIGN_POT && w != 1)
pExaPixmap->fb_pitch = (1 << (exaLog2(w - 1) + 1)) * bpp / 8;
else
pExaPixmap->fb_pitch = w * bpp / 8;
pExaPixmap->fb_pitch = EXA_ALIGN(pExaPixmap->fb_pitch,
pExaScr->info->pixmapPitchAlign);
pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
if (pExaPixmap->fb_pitch > 131071) {
fbDestroyPixmap(pPixmap);
return NULL;
}
/* Set up damage tracking */
pExaPixmap->pDamage = DamageCreate (NULL, NULL, DamageReportNone, TRUE,
pScreen, pPixmap);
if (pExaPixmap->pDamage == NULL) {
fbDestroyPixmap (pPixmap);
return NULL;
}
DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);
DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);
/* None of the pixmap bits are valid initially */
REGION_NULL(pScreen, &pExaPixmap->validReg);
return pPixmap;
}
Bool
exaDestroyPixmap_classic(PixmapPtr pPixmap)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv(pScreen);
Bool ret;
if (pPixmap->refcnt == 1) {
ExaPixmapPriv(pPixmap);
exaDestroyPixmap(pPixmap);
if (pExaPixmap->area) {
DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n",
(void *) pPixmap->drawable.id,
ExaGetPixmapPriv(pPixmap)->area->offset,
pPixmap->drawable.width, pPixmap->drawable.height));
/* Free the offscreen area */
exaOffscreenFree(pPixmap->drawable.pScreen, pExaPixmap->area);
pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
pPixmap->devKind = pExaPixmap->sys_pitch;
}
RegionUninit(&pExaPixmap->validSys);
RegionUninit(&pExaPixmap->validFB);
}
swap(pExaScr, pScreen, DestroyPixmap);
ret = pScreen->DestroyPixmap(pPixmap);
swap(pExaScr, pScreen, DestroyPixmap);
return ret;
}
/**
* exaGetPixmapSize() returns the size in bytes of the given pixmap in video
* memory. Only valid when the pixmap is currently in framebuffer.
*/
unsigned long
exaGetPixmapSize(PixmapPtr pPix)
{
ExaPixmapPrivPtr pExaPixmap;
pExaPixmap = ExaGetPixmapPriv(pPix);
if (pExaPixmap != NULL)
return pExaPixmap->fb_size;
return 0;
}
/**
* Switches the current active location of the pixmap to system memory, copying
* updated data out if necessary.
*/
void
exaMoveOutPixmap (PixmapPtr pPixmap)
{
ExaPixmapPriv (pPixmap);
if (exaPixmapIsPinned(pPixmap))
return;
if (exaPixmapIsOffscreen(pPixmap)) {
DBG_MIGRATE (("<- %p (%p) (%dx%d) (%c)\n", pPixmap,
(void*)(ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height,
exaPixmapIsDirty(pPixmap) ? 'd' : 'c'));
exaCopyDirtyToSys (pPixmap);
pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
pPixmap->devKind = pExaPixmap->sys_pitch;
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
}
}
static Bool
exaDestroyPixmap (PixmapPtr pPixmap)
{
if (pPixmap->refcnt == 1)
{
ExaPixmapPriv (pPixmap);
if (pExaPixmap->area)
{
DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n",
(void*)pPixmap->drawable.id,
ExaGetPixmapPriv(pPixmap)->area->offset,
pPixmap->drawable.width,
pPixmap->drawable.height));
/* Free the offscreen area */
exaOffscreenFree (pPixmap->drawable.pScreen, pExaPixmap->area);
pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
pPixmap->devKind = pExaPixmap->sys_pitch;
}
REGION_UNINIT(pPixmap->drawable.pScreen, &pExaPixmap->validReg);
}
return fbDestroyPixmap (pPixmap);
}
Bool
exaHWCopyNtoN(DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
GCPtr pGC,
BoxPtr pbox,
int nbox, int dx, int dy, Bool reverse, Bool upsidedown)
{
ExaScreenPriv(pDstDrawable->pScreen);
PixmapPtr pSrcPixmap, pDstPixmap;
ExaPixmapPrivPtr pSrcExaPixmap, pDstExaPixmap;
int src_off_x, src_off_y;
int dst_off_x, dst_off_y;
RegionPtr srcregion = NULL, dstregion = NULL;
xRectangle *rects;
Bool ret = TRUE;
/* avoid doing copy operations if no boxes */
if (nbox == 0)
return TRUE;
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 = malloc(nbox * sizeof(xRectangle));
if (rects) {
int i;
int ordering;
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;
}
/* This must match the RegionCopy() logic for reversing rect order */
if (nbox == 1 || (dx > 0 && dy > 0) ||
(pDstDrawable != pSrcDrawable &&
(pDstDrawable->type != DRAWABLE_WINDOW ||
pSrcDrawable->type != DRAWABLE_WINDOW)))
ordering = CT_YXBANDED;
else
ordering = CT_UNSORTED;
srcregion = RegionFromRects(nbox, rects, ordering);
free(rects);
if (!pGC || !exaGCReadsDestination(pDstDrawable, pGC->planemask,
pGC->fillStyle, pGC->alu,
pGC->clientClip != NULL)) {
dstregion = RegionCreate(NullBox, 0);
RegionCopy(dstregion, srcregion);
RegionTranslate(dstregion, dst_off_x - dx - src_off_x,
dst_off_y - dy - src_off_y);
}
}
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;
}
}
if (pExaScr->do_migration) {
ExaMigrationRec pixmaps[2];
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;
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 (exaPixmapHasGpuCopy(pDstPixmap)) {
/* Normal blitting. */
if (exaPixmapHasGpuCopy(pSrcPixmap)) {
if (!(*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);
/* UTS: mainly for SHM PutImage's secondary path.
*
* Only taking this path for directly accessible pixmaps.
*/
}
else if (!pDstExaPixmap->pDamage && pSrcExaPixmap->sys_ptr) {
int bpp = pSrcDrawable->bitsPerPixel;
int src_stride = exaGetPixmapPitch(pSrcPixmap);
CARD8 *src = NULL;
if (!pExaScr->info->UploadToScreen)
goto fallback;
if (pSrcDrawable->bitsPerPixel != pDstDrawable->bitsPerPixel)
goto fallback;
if (pSrcDrawable->bitsPerPixel < 8)
goto fallback;
if (pGC &&
!(pGC->alu == GXcopy &&
EXA_PM_IS_SOLID(pSrcDrawable, pGC->planemask)))
goto fallback;
while (nbox--) {
src =
pSrcExaPixmap->sys_ptr + (pbox->y1 + dy +
src_off_y) * src_stride +
(pbox->x1 + dx + src_off_x) * (bpp / 8);
if (!pExaScr->info->
UploadToScreen(pDstPixmap, pbox->x1 + dst_off_x,
pbox->y1 + dst_off_y, pbox->x2 - pbox->x1,
pbox->y2 - pbox->y1, (char *) src,
src_stride))
goto fallback;
pbox++;
}
}
else
goto fallback;
}
else
goto fallback;
goto out;
fallback:
ret = FALSE;
out:
if (dstregion) {
RegionUninit(dstregion);
RegionDestroy(dstregion);
}
if (srcregion) {
RegionUninit(srcregion);
RegionDestroy(srcregion);
}
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,
Bool hasClientClip)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
ExaPixmapPrivPtr pTileExaPixmap = ExaGetPixmapPriv(pTile);
int xoff, yoff;
int tileWidth, tileHeight;
int nbox = RegionNumRects(pRegion);
BoxPtr pBox = RegionRects(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, hasClientClip);
pPixmap = exaGetDrawablePixmap(pDrawable);
pExaPixmap = ExaGetPixmapPriv(pPixmap);
if (pExaScr->fallback_counter || pExaPixmap->accel_blocked ||
pTileExaPixmap->accel_blocked)
return FALSE;
if (pExaScr->do_migration) {
ExaMigrationRec pixmaps[2];
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pPixmap;
pixmaps[0].pReg = exaGCReadsDestination(pDrawable, planemask, FillTiled,
alu,
hasClientClip) ? NULL : pRegion;
pixmaps[1].as_dst = FALSE;
pixmaps[1].as_src = TRUE;
pixmaps[1].pPix = pTile;
pixmaps[1].pReg = NULL;
exaDoMigration(pixmaps, 2, TRUE);
}
pPixmap = exaGetOffscreenPixmap(pDrawable, &xoff, &yoff);
if (!pPixmap || !exaPixmapHasGpuCopy(pTile))
return FALSE;
if ((*pExaScr->info->PrepareCopy) (pTile, pPixmap, 1, 1, alu, planemask)) {
if (xoff || yoff)
RegionTranslate(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 {
Bool more_copy = FALSE;
for (i = 0; i < nbox; i++) {
int dstX = pBox[i].x1 + tileWidth;
int dstY = pBox[i].y1 + tileHeight;
if ((dstX < pBox[i].x2) || (dstY < pBox[i].y2)) {
more_copy = TRUE;
break;
}
}
if (more_copy == FALSE)
ret = TRUE;
if (more_copy && (*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)
RegionTranslate(pRegion, -xoff, -yoff);
}
return ret;
}
/**
* exaCreatePixmap() creates a new pixmap.
*
* If width and height are 0, this won't be a full-fledged pixmap and it will
* get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because
* ModifyPixmapHeader() would break migration. These types of pixmaps are used
* for scratch pixmaps, or to represent the visible screen.
*/
PixmapPtr
exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,
unsigned usage_hint)
{
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
BoxRec box;
int bpp;
ExaScreenPriv(pScreen);
if (w > 32767 || h > 32767)
return NullPixmap;
swap(pExaScr, pScreen, CreatePixmap);
pPixmap = pScreen->CreatePixmap(pScreen, w, h, depth, usage_hint);
swap(pExaScr, pScreen, CreatePixmap);
if (!pPixmap)
return NULL;
pExaPixmap = ExaGetPixmapPriv(pPixmap);
pExaPixmap->driverPriv = NULL;
bpp = pPixmap->drawable.bitsPerPixel;
pExaPixmap->driverPriv = NULL;
/* Scratch pixmaps may have w/h equal to zero, and may not be
* migrated.
*/
if (!w || !h)
pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
else
pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
pExaPixmap->sys_pitch = pPixmap->devKind;
pPixmap->devPrivate.ptr = NULL;
pExaPixmap->use_gpu_copy = FALSE;
pExaPixmap->fb_ptr = NULL;
exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
if (pExaPixmap->fb_pitch > 131071) {
swap(pExaScr, pScreen, DestroyPixmap);
pScreen->DestroyPixmap(pPixmap);
swap(pExaScr, pScreen, DestroyPixmap);
return NULL;
}
/* Set up damage tracking */
pExaPixmap->pDamage = DamageCreate(NULL, NULL,
DamageReportNone, TRUE,
pScreen, pPixmap);
if (pExaPixmap->pDamage == NULL) {
swap(pExaScr, pScreen, DestroyPixmap);
pScreen->DestroyPixmap(pPixmap);
swap(pExaScr, pScreen, DestroyPixmap);
return NULL;
}
DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
/* This ensures that pending damage reflects the current operation. */
/* This is used by exa to optimize migration. */
DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
pExaPixmap->area = NULL;
/* We set the initial pixmap as completely valid for a simple reason.
* Imagine a 1000x1000 pixmap, it has 1 million pixels, 250000 of which
* could form single pixel rects as part of a region. Setting the complete region
* as valid is a natural defragmentation of the region.
*/
box.x1 = 0;
box.y1 = 0;
box.x2 = w;
box.y2 = h;
RegionInit(&pExaPixmap->validSys, &box, 0);
RegionInit(&pExaPixmap->validFB, &box, 0);
exaSetAccelBlock(pExaScr, pExaPixmap, w, h, bpp);
/* During a fallback we must prepare access. */
if (pExaScr->fallback_counter)
exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);
return pPixmap;
}
Bool
exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height,
int depth, int bitsPerPixel, int devKind,
void *pPixData)
{
ScreenPtr pScreen;
ExaScreenPrivPtr pExaScr;
ExaPixmapPrivPtr pExaPixmap;
Bool ret;
if (!pPixmap)
return FALSE;
pScreen = pPixmap->drawable.pScreen;
pExaScr = ExaGetScreenPriv(pScreen);
pExaPixmap = ExaGetPixmapPriv(pPixmap);
if (pExaPixmap) {
if (pPixData)
pExaPixmap->sys_ptr = pPixData;
if (devKind > 0)
pExaPixmap->sys_pitch = devKind;
/* Classic EXA:
* - Framebuffer.
* - Scratch pixmap with gpu memory.
*/
if (pExaScr->info->memoryBase && pPixData) {
if ((CARD8 *) pPixData >= pExaScr->info->memoryBase &&
((CARD8 *) pPixData - pExaScr->info->memoryBase) <
pExaScr->info->memorySize) {
pExaPixmap->fb_ptr = pPixData;
pExaPixmap->fb_pitch = devKind;
pExaPixmap->use_gpu_copy = TRUE;
}
}
if (width > 0 && height > 0 && bitsPerPixel > 0) {
exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel);
exaSetAccelBlock(pExaScr, pExaPixmap, width, height, bitsPerPixel);
}
/* Pixmaps subject to ModifyPixmapHeader will be pinned to system or
* gpu memory, so there's no need to track damage.
*/
if (pExaPixmap->pDamage) {
DamageDestroy(pExaPixmap->pDamage);
pExaPixmap->pDamage = NULL;
}
}
swap(pExaScr, pScreen, ModifyPixmapHeader);
ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,
bitsPerPixel, devKind, pPixData);
swap(pExaScr, pScreen, ModifyPixmapHeader);
/* Always NULL this, we don't want lingering pointers. */
pPixmap->devPrivate.ptr = NULL;
return ret;
}