void
exaGlyphsInit(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
int i = 0;
memset(pExaScr->glyphCaches, 0, sizeof(pExaScr->glyphCaches));
pExaScr->glyphCaches[i].format = PICT_a8;
pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight =
16;
i++;
pExaScr->glyphCaches[i].format = PICT_a8;
pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight =
32;
i++;
pExaScr->glyphCaches[i].format = PICT_a8r8g8b8;
pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight =
16;
i++;
pExaScr->glyphCaches[i].format = PICT_a8r8g8b8;
pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight =
32;
i++;
assert(i == EXA_NUM_GLYPH_CACHES);
for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) {
pExaScr->glyphCaches[i].columns =
CACHE_PICTURE_WIDTH / pExaScr->glyphCaches[i].glyphWidth;
pExaScr->glyphCaches[i].size = 256;
pExaScr->glyphCaches[i].hashSize = 557;
}
}
/**
* Ejects all offscreen areas, and uninitializes the offscreen memory manager.
*/
void
ExaOffscreenSwapOut (ScreenPtr pScreen)
{
ExaScreenPriv (pScreen);
ExaOffscreenValidate (pScreen);
/* loop until a single free area spans the space */
for (;;)
{
ExaOffscreenArea *area = pExaScr->info->offScreenAreas;
if (!area)
break;
if (area->state == ExaOffscreenAvail)
{
area = area->next;
if (!area)
break;
}
assert (area->state != ExaOffscreenAvail);
(void) ExaOffscreenKickOut (pScreen, area);
ExaOffscreenValidate (pScreen);
}
ExaOffscreenValidate (pScreen);
ExaOffscreenFini (pScreen);
}
/** Ejects all pixmaps managed by EXA. */
static void
ExaOffscreenEjectPixmaps (ScreenPtr pScreen)
{
ExaScreenPriv (pScreen);
ExaOffscreenValidate (pScreen);
/* loop until a single free area spans the space */
for (;;)
{
ExaOffscreenArea *area;
for (area = pExaScr->info->offScreenAreas; area != NULL;
area = area->next)
{
if (area->state == ExaOffscreenRemovable &&
area->save == exaPixmapSave)
{
(void) ExaOffscreenKickOut (pScreen, area);
ExaOffscreenValidate (pScreen);
break;
}
}
if (area == NULL)
break;
}
ExaOffscreenValidate (pScreen);
}
static void
exaUnrealizeGlyphCaches(ScreenPtr pScreen, unsigned int format)
{
ExaScreenPriv(pScreen);
int i;
for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) {
ExaGlyphCachePtr cache = &pExaScr->glyphCaches[i];
if (cache->format != format)
continue;
if (cache->picture) {
FreePicture((pointer) cache->picture, (XID) 0);
cache->picture = NULL;
}
free(cache->hashEntries);
cache->hashEntries = NULL;
free(cache->glyphs);
cache->glyphs = NULL;
cache->glyphCount = 0;
}
}
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);
if (pExaScr->fallback_counter ||
(pExaScr->fallback_flags & EXA_FALLBACK_COPYWINDOW))
return;
if (exaHWCopyNtoN
(pSrcDrawable, pDstDrawable, pGC, pbox, nbox, dx, dy, reverse,
upsidedown))
return;
/* This is a CopyWindow, it's cleaner to fallback at the original call. */
if (pExaScr->fallback_flags & EXA_ACCEL_COPYWINDOW) {
pExaScr->fallback_flags |= EXA_FALLBACK_COPYWINDOW;
return;
}
/* fallback */
ExaCheckCopyNtoN(pSrcDrawable, pDstDrawable, pGC, pbox, nbox, dx, dy,
reverse, upsidedown, bitplane, closure);
}
/**
* 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;
}
static void
ExaFallbackPrepareReg(DrawablePtr pDrawable,
GCPtr pGC,
int x, int y, int width, int height,
int index, Bool checkReads)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv(pScreen);
if (pExaScr->prepare_access_reg &&
!(checkReads && exaGCReadsDestination(pDrawable,
pGC->planemask,
pGC->fillStyle,
pGC->alu, pGC->clientClipType))) {
BoxRec box;
RegionRec reg;
int xoff, yoff;
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff);
box.x1 = pDrawable->x + x + xoff;
box.y1 = pDrawable->y + y + yoff;
box.x2 = box.x1 + width;
box.y2 = box.y1 + height;
RegionInit(®, &box, 1);
pExaScr->prepare_access_reg(pPixmap, index, ®);
RegionUninit(®);
}
else
exaPrepareAccess(pDrawable, index);
}
static void
exaPolyPoint(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
DDXPointPtr ppt)
{
ExaScreenPriv(pDrawable->pScreen);
int i;
xRectangle *prect;
/* If we can't reuse the current GC as is, don't bother accelerating the
* points.
*/
if (pExaScr->fallback_counter || pGC->fillStyle != FillSolid) {
ExaCheckPolyPoint(pDrawable, pGC, mode, npt, ppt);
return;
}
prect = malloc(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);
free(prect);
}
/**
* 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);
}
/**
* exaPrepareAccess() is EXA's wrapper for the driver's PrepareAccess() handler.
*
* It deals with waiting for synchronization with the card, determining if
* PrepareAccess() is necessary, and working around PrepareAccess() failure.
*/
void
exaPrepareAccess(DrawablePtr pDrawable, int index)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv (pScreen);
PixmapPtr pPixmap;
pPixmap = exaGetDrawablePixmap (pDrawable);
if (exaPixmapIsOffscreen (pPixmap))
exaWaitSync (pDrawable->pScreen);
else
return;
/* Unhide pixmap pointer */
if (pPixmap->devPrivate.ptr == NULL) {
ExaPixmapPriv (pPixmap);
pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr;
}
if (pExaScr->info->PrepareAccess == NULL)
return;
if (!(*pExaScr->info->PrepareAccess) (pPixmap, index)) {
ExaPixmapPriv (pPixmap);
if (pExaPixmap->score != EXA_PIXMAP_SCORE_PINNED)
FatalError("Driver failed PrepareAccess on a pinned pixmap\n");
exaMoveOutPixmap (pPixmap);
}
}
static void
ExaSrcValidate(DrawablePtr pDrawable,
int x,
int y,
int width,
int height)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv(pScreen);
PixmapPtr pPix = exaGetDrawablePixmap (pDrawable);
BoxRec box;
RegionRec reg;
RegionPtr dst;
int xoff, yoff;
exaGetDrawableDeltas(pDrawable, pPix, &xoff, &yoff);
box.x1 = x + xoff;
box.y1 = y + yoff;
box.x2 = box.x1 + width;
box.y2 = box.y1 + height;
dst = (pExaScr->srcPix == pPix) ? &pExaScr->srcReg :
&pExaScr->maskReg;
REGION_INIT(pScreen, ®, &box, 1);
REGION_UNION(pScreen, dst, dst, ®);
REGION_UNINIT(pScreen, ®);
if (pExaScr->SavedSourceValidate) {
swap(pExaScr, pScreen, SourceValidate);
pScreen->SourceValidate(pDrawable, x, y, width, height);
swap(pExaScr, pScreen, SourceValidate);
}
}
/**
* exaCloseScreen() unwraps its wrapped screen functions and tears down EXA's
* screen private, before calling down to the next CloseSccreen.
*/
static Bool
exaCloseScreen(int i, ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
#ifdef RENDER
PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
#endif
pScreen->CreateGC = pExaScr->SavedCreateGC;
pScreen->CloseScreen = pExaScr->SavedCloseScreen;
pScreen->GetImage = pExaScr->SavedGetImage;
pScreen->GetSpans = pExaScr->SavedGetSpans;
pScreen->PaintWindowBackground = pExaScr->SavedPaintWindowBackground;
pScreen->PaintWindowBorder = pExaScr->SavedPaintWindowBorder;
pScreen->CreatePixmap = pExaScr->SavedCreatePixmap;
pScreen->DestroyPixmap = pExaScr->SavedDestroyPixmap;
pScreen->CopyWindow = pExaScr->SavedCopyWindow;
#ifdef RENDER
if (ps) {
ps->Composite = pExaScr->SavedComposite;
ps->Glyphs = pExaScr->SavedGlyphs;
ps->Trapezoids = pExaScr->SavedTrapezoids;
}
#endif
xfree (pExaScr);
return (*pScreen->CloseScreen) (i, pScreen);
}
/**
* exaOffscreenInit initializes the offscreen memory manager.
*
* @param pScreen current screen
*
* exaOffscreenInit is called by exaDriverInit to set up the memory manager for
* the screen, if any offscreen memory is available.
*/
Bool
exaOffscreenInit (ScreenPtr pScreen)
{
ExaScreenPriv (pScreen);
ExaOffscreenArea *area;
/* Allocate a big free area */
area = xalloc (sizeof (ExaOffscreenArea));
if (!area)
return FALSE;
area->state = ExaOffscreenAvail;
area->base_offset = pExaScr->info->offScreenBase;
area->offset = area->base_offset;
area->size = pExaScr->info->memorySize - area->base_offset;
area->save = NULL;
area->next = NULL;
area->score = 0;
/* Add it to the free areas */
pExaScr->info->offScreenAreas = area;
ExaOffscreenValidate (pScreen);
return TRUE;
}
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;
}
/**
* If the pixmap is currently dirty, this copies at least the dirty area from
* the system memory copy to the framebuffer memory copy. Both areas must be
* allocated.
*/
static void
exaCopyDirtyToFb (PixmapPtr pPixmap)
{
ExaScreenPriv (pPixmap->drawable.pScreen);
ExaPixmapPriv (pPixmap);
RegionPtr pRegion = DamageRegion (pExaPixmap->pDamage);
CARD8 *save_ptr;
int save_pitch;
BoxPtr pBox = REGION_RECTS(pRegion);
int nbox = REGION_NUM_RECTS(pRegion);
Bool do_sync = FALSE;
save_ptr = pPixmap->devPrivate.ptr;
save_pitch = pPixmap->devKind;
pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr;
pPixmap->devKind = pExaPixmap->fb_pitch;
while (nbox--) {
pBox->x1 = max(pBox->x1, 0);
pBox->y1 = max(pBox->y1, 0);
pBox->x2 = min(pBox->x2, pPixmap->drawable.width);
pBox->y2 = min(pBox->y2, pPixmap->drawable.height);
if (pBox->x1 >= pBox->x2 || pBox->y1 >= pBox->y2)
continue;
if (pExaScr->info->UploadToScreen == NULL ||
!pExaScr->info->UploadToScreen (pPixmap,
pBox->x1, pBox->y1,
pBox->x2 - pBox->x1,
pBox->y2 - pBox->y1,
pExaPixmap->sys_ptr
+ pBox->y1 * pExaPixmap->sys_pitch
+ pBox->x1 * pPixmap->drawable.bitsPerPixel / 8,
pExaPixmap->sys_pitch))
{
exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_DEST);
exaMemcpyBox (pPixmap, pBox,
pExaPixmap->sys_ptr, pExaPixmap->sys_pitch,
pExaPixmap->fb_ptr, pExaPixmap->fb_pitch);
exaFinishAccess(&pPixmap->drawable, EXA_PREPARE_DEST);
}
else
do_sync = TRUE;
pBox++;
}
if (do_sync)
exaMarkSync (pPixmap->drawable.pScreen);
pPixmap->devPrivate.ptr = save_ptr;
pPixmap->devKind = save_pitch;
/* The previously damaged bits are now no longer damaged but valid */
REGION_UNION(pPixmap->drawable.pScreen,
&pExaPixmap->validReg, &pExaPixmap->validReg, pRegion);
DamageEmpty (pExaPixmap->pDamage);
}
/**
* exaDDXDriverInit is required by the top-level EXA module, and is used by
* the xorg DDX to hook in its EnableDisableFB wrapper. We don't need it, since
* we won't be enabling/disabling the FB.
*/
void
exaDDXDriverInit(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
pExaScr->migration = ExaMigrationSmart;
pExaScr->checkDirtyCorrectness = TRUE;
}
/**
* exaWaitSync() ensures that all drawing has been completed.
*
* @param pScreen screen being synchronized.
*
* Calls down into the driver to ensure that all previous drawing has completed.
* It should always be called before relying on the framebuffer contents
* reflecting previous drawing, from a CPU perspective.
*/
void exaWaitSync(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
if (pExaScr->info->needsSync && !pExaScr->swappedOut) {
(*pExaScr->info->WaitMarker)(pScreen, pExaScr->info->lastMarker);
pExaScr->info->needsSync = FALSE;
}
}
/**
* exaMarkSync() should be called after any asynchronous drawing by the hardware.
*
* @param pScreen screen which drawing occurred on
*
* exaMarkSync() sets a flag to indicate that some asynchronous drawing has
* happened and a WaitSync() will be necessary before relying on the contents of
* offscreen memory from the CPU's perspective. It also calls an optional
* driver MarkSync() callback, the return value of which may be used to do partial
* synchronization with the hardware in the future.
*/
void exaMarkSync(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
pExaScr->info->needsSync = TRUE;
if (pExaScr->info->MarkSync != NULL) {
pExaScr->info->lastMarker = (*pExaScr->info->MarkSync)(pScreen);
}
}
/**
* 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;
}
/**
* If the pixmap is currently dirty, this copies at least the dirty area from
* the system memory copy to the framebuffer memory copy. Both areas must be
* allocated.
*/
void
exaCopyDirtyToFb(ExaMigrationPtr migrate)
{
PixmapPtr pPixmap = migrate->pPix;
ExaScreenPriv(pPixmap->drawable.pScreen);
ExaPixmapPriv(pPixmap);
exaCopyDirty(migrate, &pExaPixmap->validFB, &pExaPixmap->validSys,
pExaScr->info->UploadToScreen, EXA_PREPARE_DEST, NULL);
}
/**
* If the pixmap is currently dirty, this copies at least the dirty area from
* the framebuffer memory copy to the system memory copy. Both areas must be
* allocated.
*/
void
exaCopyDirtyToSys(ExaMigrationPtr migrate)
{
PixmapPtr pPixmap = migrate->pPix;
ExaScreenPriv(pPixmap->drawable.pScreen);
ExaPixmapPriv(pPixmap);
exaCopyDirty(migrate, &pExaPixmap->validSys, &pExaPixmap->validFB,
pExaScr->info->DownloadFromScreen, EXA_PREPARE_SRC,
exaWaitSync);
}
/**
* 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)
{
ExaScreenPriv(pDrawable->pScreen);
xRectangle *prect;
int i;
/* Don't try to do wide lines or non-solid fill style. */
if (pExaScr->fallback_counter || 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 = malloc(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);
free(prect);
}
void
ExaOffscreenFini (ScreenPtr pScreen)
{
ExaScreenPriv (pScreen);
ExaOffscreenArea *area;
/* just free all of the area records */
while ((area = pExaScr->info->offScreenAreas))
{
pExaScr->info->offScreenAreas = area->next;
xfree (area);
}
}
void
exaGlyphsFini(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
int i;
for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) {
ExaGlyphCachePtr cache = &pExaScr->glyphCaches[i];
if (cache->picture)
exaUnrealizeGlyphCaches(pScreen, cache->format);
}
}
void
exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel)
{
int i;
/* If anything is pinned in system memory, we won't be able to
* accelerate.
*/
for (i = 0; i < npixmaps; i++) {
if (exaPixmapIsPinned(pixmaps[i].pPix) &&
!exaPixmapHasGpuCopy(pixmaps[i].pPix)) {
can_accel = FALSE;
break;
}
}
/* We can do nothing. */
if (!can_accel)
return;
for (i = 0; i < npixmaps; i++) {
PixmapPtr pPixmap = pixmaps[i].pPix;
ExaPixmapPriv(pPixmap);
if (!pExaPixmap->driverPriv)
exaCreateDriverPixmap_mixed(pPixmap);
if (pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) {
ExaScreenPriv(pPixmap->drawable.pScreen);
/* This pitch is needed for proper acceleration. For some reason
* there are pixmaps without pDamage and a bad fb_pitch value.
* So setting devKind when only exaPixmapHasGpuCopy() is true
* causes corruption. Pixmaps without pDamage are not migrated
* and should have a valid devKind at all times, so that's why this
* isn't causing problems. Pixmaps have their gpu pitch set the
* first time in the MPH call from exaCreateDriverPixmap_mixed().
*/
pPixmap->devKind = pExaPixmap->fb_pitch;
exaCopyDirtyToFb(pixmaps + i);
if (pExaScr->deferred_mixed_pixmap == pPixmap &&
!pixmaps[i].as_dst && !pixmaps[i].pReg)
pExaScr->deferred_mixed_pixmap = NULL;
}
pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
}
}
/**
* exaGetPixmapOffset() returns the offset (in bytes) within the framebuffer of
* the beginning of the given pixmap.
*
* Note that drivers are free to, and often do, munge this offset as necessary
* for handing to the hardware -- for example, translating it into a different
* aperture. This function may need to be extended in the future if we grow
* support for having multiple card-accessible offscreen, such as an AGP memory
* pool alongside the framebuffer pool.
*/
unsigned long
exaGetPixmapOffset(PixmapPtr pPix)
{
ExaScreenPriv (pPix->drawable.pScreen);
ExaPixmapPriv (pPix);
void *ptr;
/* Return the offscreen pointer if we've hidden the data. */
if (pPix->devPrivate.ptr == NULL)
ptr = pExaPixmap->fb_ptr;
else
ptr = pPix->devPrivate.ptr;
return ((unsigned long)ptr - (unsigned long)pExaScr->info->memoryBase);
}
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->fallback_counter || pExaScr->swappedOut) {
return ExaCheckCopyArea(pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height, dstx, dsty);
}
return miDoCopy(pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height,
dstx, dsty, exaCopyNtoN, 0, NULL);
}
/**
* Prepares EXA for disabling of FB access, or restoring it.
*
* In version 2.1, the disabling results in pixmaps being ejected, while other
* allocations remain. With this plus the prevention of migration while
* swappedOut is set, EXA by itself should not cause any access of the
* framebuffer to occur while swapped out. Any remaining issues are the
* responsibility of the driver.
*
* Prior to version 2.1, all allocations, including locked ones, are ejected
* when access is disabled, and the allocator is torn down while swappedOut
* is set. This is more drastic, and caused implementation difficulties for
* many drivers that could otherwise handle the lack of FB access while
* swapped out.
*/
void
exaEnableDisableFBAccess (int index, Bool enable)
{
ScreenPtr pScreen = screenInfo.screens[index];
ExaScreenPriv (pScreen);
if (!enable) {
if (pExaScr->info->exa_minor < 1)
ExaOffscreenSwapOut (pScreen);
else
ExaOffscreenEjectPixmaps (pScreen);
pExaScr->swappedOut = TRUE;
} else {
if (pExaScr->info->exa_minor < 1)
ExaOffscreenSwapIn (pScreen);
pExaScr->swappedOut = FALSE;
}
}
/**
* exaPixmapIsOffscreen() is used to determine if a pixmap is in offscreen
* memory, meaning that acceleration could probably be done to it, and that it
* will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it
* with the CPU.
*
* Note that except for UploadToScreen()/DownloadFromScreen() (which explicitly
* deal with moving pixmaps in and out of system memory), EXA will give drivers
* pixmaps as arguments for which exaPixmapIsOffscreen() is TRUE.
*
* @return TRUE if the given drawable is in framebuffer memory.
*/
Bool
exaPixmapIsOffscreen(PixmapPtr p)
{
ScreenPtr pScreen = p->drawable.pScreen;
ExaScreenPriv(pScreen);
/* If the devPrivate.ptr is NULL, it's offscreen but we've hidden the data.
*/
if (p->devPrivate.ptr == NULL)
return TRUE;
if (pExaScr->info->PixmapIsOffscreen)
return pExaScr->info->PixmapIsOffscreen(p);
return ((unsigned long) ((CARD8 *) p->devPrivate.ptr -
(CARD8 *) pExaScr->info->memoryBase) <
pExaScr->info->memorySize);
}
static void
ExaOffscreenValidate (ScreenPtr pScreen)
{
ExaScreenPriv (pScreen);
ExaOffscreenArea *prev = 0, *area;
assert (pExaScr->info->offScreenAreas->base_offset ==
pExaScr->info->offScreenBase);
for (area = pExaScr->info->offScreenAreas; area; area = area->next)
{
assert (area->offset >= area->base_offset &&
area->offset < (area->base_offset + area->size));
if (prev)
assert (prev->base_offset + prev->area.size == area->base_offset);
prev = area;
}
assert (prev->base_offset + prev->size == pExaScr->info->memorySize);
}
