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xserver/exa/exa_migration.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.
*/
#ifdef HAVE_CONFIG_H
#include <xorg-config.h>
#endif
#include "exaPriv.h"
#include <X11/fonts/fontstruct.h>
#include "dixfontstr.h"
#include "xf86str.h"
#include "xf86.h"
#include "exa.h"
#include "cw.h"
#if DEBUG_MIGRATE
#define DBG_MIGRATE(a) ErrorF a
#else
#define DBG_MIGRATE(a)
#endif
#if DEBUG_PIXMAP
#define DBG_PIXMAP(a) ErrorF a
#else
#define DBG_PIXMAP(a)
#endif
#define STRACE
#define TRACE
static int exaGeneration;
int exaScreenPrivateIndex;
int exaPixmapPrivateIndex;
#define EXA_PIXMAP_SCORE_MOVE_IN 10
#define EXA_PIXMAP_SCORE_MAX 20
#define EXA_PIXMAP_SCORE_MOVE_OUT -10
#define EXA_PIXMAP_SCORE_MIN -20
#define EXA_PIXMAP_SCORE_PINNED 1000
#define EXA_PIXMAP_SCORE_INIT 1001
/* Returns the offset (in bytes) within the framebuffer of the beginning of the
* given pixmap. May need to be extended in the future if we grow support for
* having multiple card-accessible areas at different offsets.
*/
unsigned long
exaGetPixmapOffset(PixmapPtr pPix)
{
ExaScreenPriv (pPix->drawable.pScreen);
return ((unsigned long)pPix->devPrivate.ptr -
(unsigned long)pExaScr->info->card.memoryBase);
}
/* Returns the pitch in bytes of the given pixmap. */
unsigned long
exaGetPixmapPitch(PixmapPtr pPix)
{
return pPix->devKind;
}
/* Returns the size in bytes of the given pixmap in
* video memory. Only valid when the vram storage has been
* allocated
*/
unsigned long
exaGetPixmapSize(PixmapPtr pPix)
{
ExaPixmapPrivPtr pExaPixmap;
pExaPixmap = ExaGetPixmapPriv(pPix);
if (pExaPixmap != NULL)
return pExaPixmap->size;
return 0;
}
void
exaDrawableDirty (DrawablePtr pDrawable)
{
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
if (pDrawable->type == DRAWABLE_WINDOW)
pPixmap = (*pDrawable->pScreen->GetWindowPixmap)((WindowPtr) pDrawable);
else
pPixmap = (PixmapPtr)pDrawable;
pExaPixmap = ExaGetPixmapPriv(pPixmap);
if (pExaPixmap != NULL)
pExaPixmap->dirty = TRUE;
}
static void
exaPixmapSave (ScreenPtr pScreen, ExaOffscreenArea *area)
{
PixmapPtr pPixmap = area->privData;
ExaScreenPriv (pScreen);
ExaPixmapPriv(pPixmap);
int dst_pitch, src_pitch, bytes;
char *dst, *src;
int i;
DBG_MIGRATE (("Save %p (%p) (%dx%d)\n",
(void*)pPixmap->drawable.id,
(void*)(ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height));
src_pitch = pPixmap->devKind;
dst_pitch = pExaPixmap->devKind;
src = pPixmap->devPrivate.ptr;
dst = pExaPixmap->devPrivate.ptr;
if (pExaPixmap->dirty) {
if (pExaScr->info->accel.DownloadFromScreen &&
(*pExaScr->info->accel.DownloadFromScreen) (pPixmap,
pPixmap->drawable.x,
pPixmap->drawable.y,
pPixmap->drawable.width,
pPixmap->drawable.height,
dst,
dst_pitch)) {
} else {
exaWaitSync (pPixmap->drawable.pScreen);
bytes = src_pitch < dst_pitch ? src_pitch : dst_pitch;
i = pPixmap->drawable.height;
while (i--) {
memcpy (dst, src, bytes);
dst += dst_pitch;
src += src_pitch;
}
}
}
pPixmap->devKind = dst_pitch;
pPixmap->devPrivate.ptr = dst;
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
pExaPixmap->area = NULL;
/* Mark it dirty now, to say that there is important data in the
* system-memory copy.
*/
pExaPixmap->dirty = TRUE;
}
static int
exaLog2(int val)
{
int bits;
if (!val)
return 0;
for (bits = 0; val != 0; bits++)
val >>= 1;
return bits - 1;
}
static Bool
exaPixmapAllocArea (PixmapPtr pPixmap)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv (pScreen);
ExaPixmapPriv (pPixmap);
int bpp = pPixmap->drawable.bitsPerPixel;
CARD16 h = pPixmap->drawable.height;
CARD16 w = pPixmap->drawable.width;
int pitch;
if (pExaScr->info->card.flags & EXA_OFFSCREEN_ALIGN_POT && w != 1)
w = 1 << (exaLog2(w - 1) + 1);
pitch = (w * bpp / 8) + (pExaScr->info->card.pixmapPitchAlign - 1);
pitch -= pitch % pExaScr->info->card.pixmapPitchAlign;
pExaPixmap->size = pitch * h;
pExaPixmap->devKind = pPixmap->devKind;
pExaPixmap->devPrivate = pPixmap->devPrivate;
pExaPixmap->area = exaOffscreenAlloc (pScreen, pitch * h,
pExaScr->info->card.pixmapOffsetAlign,
FALSE,
exaPixmapSave, (pointer) pPixmap);
if (!pExaPixmap->area)
return FALSE;
DBG_PIXMAP(("++ 0x%lx (0x%x) (%dx%d)\n", pPixmap->drawable.id,
(ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height));
pPixmap->devKind = pitch;
pPixmap->devPrivate.ptr = (pointer) ((CARD8 *) pExaScr->info->card.memoryBase + pExaPixmap->area->offset);
pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
return TRUE;
}
void
exaMoveInPixmap (PixmapPtr pPixmap)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv (pScreen);
ExaPixmapPriv (pPixmap);
int dst_pitch, src_pitch, bytes;
char *dst, *src;
int i;
DBG_MIGRATE (("-> 0x%lx (0x%x) (%dx%d)\n", pPixmap->drawable.id,
(ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height));
src = pPixmap->devPrivate.ptr;
src_pitch = pPixmap->devKind;
if (!exaPixmapAllocArea (pPixmap)) {
DBG_MIGRATE (("failed to allocate fb for pixmap %p (%dx%dx%d)\n",
(pointer)pPixmap,
pPixmap->drawable.width, pPixmap->drawable.height,
pPixmap->drawable.bitsPerPixel));
return;
}
/* If the "dirty" flag has never been set on the in-memory pixmap, then
* nothing has been written to it, so the contents are undefined and we can
* avoid the upload.
*/
if (!pExaPixmap->dirty) {
DBG_MIGRATE(("saved upload of %dx%d\n", pPixmap->drawable.width,
pPixmap->drawable.height));
return;
}
pExaPixmap->dirty = FALSE;
if (pExaScr->info->accel.UploadToScreen)
{
if (pExaScr->info->accel.UploadToScreen(pPixmap, 0, 0,
pPixmap->drawable.width,
pPixmap->drawable.height,
src, src_pitch))
return;
}
dst = pPixmap->devPrivate.ptr;
dst_pitch = pPixmap->devKind;
bytes = src_pitch < dst_pitch ? src_pitch : dst_pitch;
exaWaitSync (pPixmap->drawable.pScreen);
i = pPixmap->drawable.height;
DBG_PIXMAP(("dst = %p, src = %p,(%d, %d) height = %d, mem_base = %p, offset = %d\n",
dst, src, dst_pitch, src_pitch,
i, pExaScr->info->card.memoryBase, ExaGetPixmapPriv(pPixmap)->area->offset));
while (i--) {
memcpy (dst, src, bytes);
dst += dst_pitch;
src += src_pitch;
}
}
static void
exaMoveOutPixmap (PixmapPtr pPixmap)
{
ExaPixmapPriv (pPixmap);
ExaOffscreenArea *area = pExaPixmap->area;
DBG_MIGRATE (("<- 0x%p (0x%p) (%dx%d)\n",
(void*)pPixmap->drawable.id,
(void*)(ExaGetPixmapPriv(pPixmap)->area ?
ExaGetPixmapPriv(pPixmap)->area->offset : 0),
pPixmap->drawable.width,
pPixmap->drawable.height));
STRACE;
if (area)
{
exaPixmapSave (pPixmap->drawable.pScreen, area);
exaOffscreenFree (pPixmap->drawable.pScreen, area);
}
}
void
exaDrawableUseScreen(DrawablePtr pDrawable)
{
PixmapPtr pPixmap;
if (pDrawable->type == DRAWABLE_WINDOW)
pPixmap = (*pDrawable->pScreen->GetWindowPixmap) ((WindowPtr) pDrawable);
else
pPixmap = (PixmapPtr) pDrawable;
exaPixmapUseScreen (pPixmap);
}
void
exaDrawableUseMemory(DrawablePtr pDrawable)
{
PixmapPtr pPixmap;
if (pDrawable->type == DRAWABLE_WINDOW)
pPixmap = (*pDrawable->pScreen->GetWindowPixmap) ((WindowPtr) pDrawable);
else
pPixmap = (PixmapPtr) pDrawable;
exaPixmapUseMemory (pPixmap);
}
void
exaPixmapUseScreen (PixmapPtr pPixmap)
{
ExaPixmapPriv (pPixmap);
STRACE;
if (pExaPixmap == NULL) {
DBG_MIGRATE(("UseScreen: ignoring exa-uncontrolled pixmap %p (%s)\n",
(pointer)pPixmap,
exaPixmapIsOffscreen(pPixmap) ? "s" : "m"));
return;
}
if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED) {
DBG_MIGRATE(("UseScreen: not migrating pinned pixmap %p\n",
(pointer)pPixmap));
return;
}
DBG_MIGRATE(("UseScreen %p score %d\n",
(pointer)pPixmap, pExaPixmap->score));
if (pExaPixmap->score == EXA_PIXMAP_SCORE_INIT) {
exaMoveInPixmap(pPixmap);
pExaPixmap->score = 0;
}
if (pExaPixmap->score < EXA_PIXMAP_SCORE_MAX)
pExaPixmap->score++;
if (pExaPixmap->score >= EXA_PIXMAP_SCORE_MOVE_IN &&
!exaPixmapIsOffscreen(pPixmap))
{
exaMoveInPixmap (pPixmap);
}
ExaOffscreenMarkUsed (pPixmap);
}
void
exaPixmapUseMemory (PixmapPtr pPixmap)
{
ExaPixmapPriv (pPixmap);
if (pExaPixmap == NULL) {
DBG_MIGRATE(("UseMem: ignoring exa-uncontrolled pixmap %p (%s)\n",
(pointer)pPixmap,
exaPixmapIsOffscreen(pPixmap) ? "s" : "m"));
return;
}
DBG_MIGRATE(("UseMem: %p score %d\n", (pointer)pPixmap, pExaPixmap->score));
if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED)
return;
if (pExaPixmap->score == EXA_PIXMAP_SCORE_INIT)
pExaPixmap->score = 0;
if (pExaPixmap->score > EXA_PIXMAP_SCORE_MIN)
pExaPixmap->score--;
if (pExaPixmap->score <= EXA_PIXMAP_SCORE_MOVE_OUT && pExaPixmap->area)
exaMoveOutPixmap (pPixmap);
}
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 = pExaPixmap->devPrivate;
pPixmap->devKind = pExaPixmap->devKind;
}
}
return fbDestroyPixmap (pPixmap);
}
static PixmapPtr
exaCreatePixmap(ScreenPtr pScreen, int w, int h, int depth)
{
PixmapPtr pPixmap;
ExaPixmapPrivPtr pExaPixmap;
int bpp;
ScrnInfoPtr pScrn = XF86SCRNINFO(pScreen);
ExaScreenPriv(pScreen);
if (w > 32767 || h > 32767)
return NullPixmap;
if (!pScrn->vtSema || pExaScr->swappedOut) {
pPixmap = pExaScr->SavedCreatePixmap(pScreen, w, h, depth);
} else {
bpp = BitsPerPixel (depth);
if (bpp == 32 && depth == 24)
{
int format;
for (format = 0; format < MAXFORMATS && pScrn->formats[format].depth; ++format)
if (pScrn->formats[format].depth == 24)
{
bpp = pScrn->formats[format].bitsPerPixel;
break;
}
}
pPixmap = fbCreatePixmapBpp (pScreen, w, h, depth, bpp);
}
if (!pPixmap)
return NULL;
pExaPixmap = ExaGetPixmapPriv(pPixmap);
/* 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->dirty = FALSE;
return pPixmap;
}
Bool
exaPixmapIsOffscreen(PixmapPtr p)
{
ScreenPtr pScreen = p->drawable.pScreen;
ExaScreenPriv(pScreen);
STRACE;
return ((unsigned long) ((CARD8 *) p->devPrivate.ptr -
(CARD8 *) pExaScr->info->card.memoryBase) <
pExaScr->info->card.memorySize);
}
PixmapPtr
exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp)
{
PixmapPtr pPixmap;
int x, y;
STRACE;
if (pDrawable->type == DRAWABLE_WINDOW) {
pPixmap = (*pDrawable->pScreen->GetWindowPixmap) ((WindowPtr) pDrawable);
#ifdef COMPOSITE
x = -pPixmap->screen_x;
y = -pPixmap->screen_y;
#else
x = 0;
y = 0;
#endif
}
else
{
pPixmap = (PixmapPtr) pDrawable;
x = 0;
y = 0;
}
*xp = x;
*yp = y;
if (exaPixmapIsOffscreen (pPixmap))
return pPixmap;
else
return NULL;
}
Bool
exaDrawableIsOffscreen (DrawablePtr pDrawable)
{
PixmapPtr pPixmap;
STRACE;
if (pDrawable->type == DRAWABLE_WINDOW)
pPixmap = (*pDrawable->pScreen->GetWindowPixmap) ((WindowPtr) pDrawable);
else
pPixmap = (PixmapPtr) pDrawable;
return exaPixmapIsOffscreen (pPixmap);
}
void
exaPrepareAccess(DrawablePtr pDrawable, int index)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv (pScreen);
PixmapPtr pPixmap;
STRACE;
if (pDrawable->type == DRAWABLE_WINDOW)
pPixmap = (*pDrawable->pScreen->GetWindowPixmap) ((WindowPtr) pDrawable);
else
pPixmap = (PixmapPtr) pDrawable;
if (index == EXA_PREPARE_DEST)
exaDrawableDirty (pDrawable);
if (exaPixmapIsOffscreen (pPixmap))
exaWaitSync (pDrawable->pScreen);
else
return;
if (pExaScr->info->accel.PrepareAccess == NULL)
return;
if (!(*pExaScr->info->accel.PrepareAccess) (pPixmap, index)) {
ExaPixmapPriv (pPixmap);
if (pExaPixmap->score != EXA_PIXMAP_SCORE_PINNED)
FatalError("Driver failed PrepareAccess on a pinned pixmap\n");
exaMoveOutPixmap (pPixmap);
}
}
void
exaFinishAccess(DrawablePtr pDrawable, int index)
{
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv (pScreen);
PixmapPtr pPixmap;
STRACE;
if (pExaScr->info->accel.FinishAccess == NULL)
return;
if (pDrawable->type == DRAWABLE_WINDOW)
pPixmap = (*pDrawable->pScreen->GetWindowPixmap) ((WindowPtr) pDrawable);
else
pPixmap = (PixmapPtr) pDrawable;
if (!exaPixmapIsOffscreen (pPixmap))
return;
(*pExaScr->info->accel.FinishAccess) (pPixmap, index);
}
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;
BoxPtr pextent, pbox;
int nbox;
int extentX1, extentX2, extentY1, extentY2;
int fullX1, fullX2, fullY1;
int partX1, partX2;
int off_x, off_y;
ScrnInfoPtr pScrn = XF86SCRNINFO(pScreen);
if (!pScrn->vtSema) {
ExaCheckFillSpans(pDrawable, pGC, n, ppt, pwidth, fSorted);
return;
}
STRACE;
if (pGC->fillStyle != FillSolid ||
pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
!(pPixmap = exaGetOffscreenPixmap (pDrawable, &off_x, &off_y)) ||
!(*pExaScr->info->accel.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->accel.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->accel.Solid) (pPixmap,
partX1 + off_x, fullY1 + off_y,
partX2 + off_x, fullY1 + 1 + off_y);
}
pbox++;
}
}
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaDrawableDirty (pDrawable);
exaMarkSync(pScreen);
}
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;
int src_off_x, src_off_y;
int dst_off_x, dst_off_y;
STRACE;
/* Respect maxX/maxY in a trivial way: don't set up drawing when we might
* violate the limits. The proper solution would be a temporary pixmap
* adjusted so that the drawing happened within limits.
*/
if (pSrcDrawable->width > pExaScr->info->card.maxX ||
pSrcDrawable->height > pExaScr->info->card.maxY ||
pDstDrawable->width > pExaScr->info->card.maxX ||
pDstDrawable->height > pExaScr->info->card.maxY)
{
exaDrawableUseMemory (pSrcDrawable);
exaDrawableUseMemory (pDstDrawable);
goto fallback;
}
/* If either drawable is already in framebuffer, try to get both of them
* there. Otherwise, be happy with where they are.
*/
if (exaDrawableIsOffscreen(pDstDrawable) ||
exaDrawableIsOffscreen(pSrcDrawable))
{
exaDrawableUseScreen (pSrcDrawable);
exaDrawableUseScreen (pDstDrawable);
} else {
exaDrawableUseMemory (pSrcDrawable);
exaDrawableUseMemory (pDstDrawable);
}
if ((pSrcPixmap = exaGetOffscreenPixmap (pSrcDrawable, &src_off_x, &src_off_y)) &&
(pDstPixmap = exaGetOffscreenPixmap (pDstDrawable, &dst_off_x, &dst_off_y)) &&
(*pExaScr->info->accel.PrepareCopy) (pSrcPixmap,
pDstPixmap,
dx,
dy,
pGC ? pGC->alu : GXcopy,
pGC ? pGC->planemask : FB_ALLONES))
{
while (nbox--)
{
(*pExaScr->info->accel.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->accel.DoneCopy) (pDstPixmap);
exaMarkSync(pDstDrawable->pScreen);
exaDrawableDirty (pDstDrawable);
return;
}
fallback:
EXA_FALLBACK(("from 0x%lx to 0x%lx\n", (long)pSrcDrawable,
(long)pDstDrawable));
exaPrepareAccess (pDstDrawable, EXA_PREPARE_DEST);
exaPrepareAccess (pSrcDrawable, EXA_PREPARE_SRC);
fbCopyNtoN (pSrcDrawable, pDstDrawable, pGC,
pbox, nbox, dx, dy, reverse, upsidedown,
bitplane, closure);
exaFinishAccess (pSrcDrawable, EXA_PREPARE_SRC);
exaFinishAccess (pDstDrawable, EXA_PREPARE_DEST);
}
RegionPtr
exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC,
int srcx, int srcy, int width, int height, int dstx, int dsty)
{
ScrnInfoPtr pScrn = XF86SCRNINFO(pDstDrawable->pScreen);
if (!pScrn->vtSema) {
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
exaPolyFillRect(DrawablePtr pDrawable,
GCPtr pGC,
int nrect,
xRectangle *prect)
{
ExaScreenPriv (pDrawable->pScreen);
RegionPtr pClip = fbGetCompositeClip(pGC);
ScrnInfoPtr pScrn = XF86SCRNINFO(pDrawable->pScreen);
PixmapPtr 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;
STRACE;
if (!pScrn->vtSema ||
pGC->fillStyle != FillSolid ||
pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
!(pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff)) ||
!(*pExaScr->info->accel.PrepareSolid) (pPixmap,
pGC->alu,
pGC->planemask,
pGC->fgPixel))
{
ExaCheckPolyFillRect (pDrawable, pGC, nrect, prect);
return;
}
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->accel.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()
*/
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->accel.Solid) (pPixmap,
partX1 + xoff, partY1 + yoff,
partX2 + xoff, partY2 + yoff);
}
}
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaDrawableDirty (pDrawable);
exaMarkSync(pDrawable->pScreen);
}
static void
exaSolidBoxClipped (DrawablePtr pDrawable,
RegionPtr pClip,
FbBits pm,
FbBits fg,
int x1,
int y1,
int x2,
int y2)
{
ExaScreenPriv (pDrawable->pScreen);
ScrnInfoPtr pScrn = XF86SCRNINFO(pDrawable->pScreen);
PixmapPtr pPixmap;
BoxPtr pbox;
int nbox;
int xoff, yoff;
int partX1, partX2, partY1, partY2;
STRACE;
if (!pScrn->vtSema ||
pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
!(pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff)) ||
!(*pExaScr->info->accel.PrepareSolid) (pPixmap, GXcopy, pm, fg))
{
EXA_FALLBACK(("to 0x%lx\n", (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
fg = fbReplicatePixel (fg, pDrawable->bitsPerPixel);
fbSolidBoxClipped (pDrawable, pClip, x1, y1, x2, y2,
fbAnd (GXcopy, fg, pm),
fbXor (GXcopy, fg, pm));
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
return;
}
for (nbox = REGION_NUM_RECTS(pClip), pbox = REGION_RECTS(pClip);
nbox--;
pbox++)
{
partX1 = pbox->x1;
if (partX1 < x1)
partX1 = x1;
partX2 = pbox->x2;
if (partX2 > x2)
partX2 = x2;
if (partX2 <= partX1)
continue;
partY1 = pbox->y1;
if (partY1 < y1)
partY1 = y1;
partY2 = pbox->y2;
if (partY2 > y2)
partY2 = y2;
if (partY2 <= partY1)
continue;
(*pExaScr->info->accel.Solid) (pPixmap,
partX1 + xoff, partY1 + yoff,
partX2 + xoff, partY2 + yoff);
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaDrawableDirty (pDrawable);
exaMarkSync(pDrawable->pScreen);
}
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 n;
int gx, gy;
void (*glyph) (FbBits *,
FbStride,
int,
FbStip *,
FbBits,
int,
int);
FbBits *dst;
FbStride dstStride;
int dstBpp;
int dstXoff, dstYoff;
FbBits depthMask;
STRACE;
depthMask = FbFullMask(pDrawable->depth);
if ((pGC->planemask & depthMask) != depthMask)
{
ExaCheckImageGlyphBlt(pDrawable, pGC, x, y, nglyph, ppciInit, pglyphBase);
return;
}
glyph = NULL;
fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
switch (dstBpp) {
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;
if (TERMINALFONT (pGC->font) && !glyph)
{
opaque = TRUE;
}
else
{
int xBack, widthBack;
int yBack, heightBack;
ppci = ppciInit;
n = nglyph;
widthBack = 0;
while (n--)
widthBack += (*ppci++)->metrics.characterWidth;
xBack = x;
if (widthBack < 0)
{
xBack += widthBack;
widthBack = -widthBack;
}
yBack = y - FONTASCENT(pGC->font);
heightBack = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);
exaSolidBoxClipped (pDrawable,
fbGetCompositeClip(pGC),
pGC->planemask,
pGC->bgPixel,
xBack,
yBack,
xBack + widthBack,
yBack + heightBack);
opaque = FALSE;
}
EXA_FALLBACK(("to 0x%lx\n", (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
ppci = ppciInit;
while (nglyph--)
{
pci = *ppci++;
pglyph = FONTGLYPHBITS(pglyphBase, pci);
gWidth = GLYPHWIDTHPIXELS(pci);
gHeight = GLYPHHEIGHTPIXELS(pci);
if (gWidth && gHeight)
{
gx = x + pci->metrics.leftSideBearing;
gy = y - pci->metrics.ascent;
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
{
gStride = GLYPHWIDTHBYTESPADDED(pci) / sizeof (FbStip);
fbPutXYImage (pDrawable,
fbGetCompositeClip(pGC),
pPriv->fg,
pPriv->bg,
pPriv->pm,
GXcopy,
opaque,
gx,
gy,
gWidth, gHeight,
(FbStip *) pglyph,
gStride,
0);
}
}
x += pci->metrics.characterWidth;
}
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
static const GCOps exaOps = {
exaFillSpans,
ExaCheckSetSpans,
ExaCheckPutImage,
exaCopyArea,
ExaCheckCopyPlane,
ExaCheckPolyPoint,
ExaCheckPolylines,
ExaCheckPolySegment,
miPolyRectangle,
ExaCheckPolyArc,
miFillPolygon,
exaPolyFillRect,
miPolyFillArc,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
exaImageGlyphBlt,
ExaCheckPolyGlyphBlt,
ExaCheckPushPixels,
#ifdef NEED_LINEHELPER
,NULL
#endif
};
static void
exaValidateGC (GCPtr pGC, Mask changes, DrawablePtr pDrawable)
{
fbValidateGC (pGC, changes, pDrawable);
if (exaDrawableIsOffscreen (pDrawable))
pGC->ops = (GCOps *) &exaOps;
else
pGC->ops = (GCOps *) &exaAsyncPixmapGCOps;
}
static GCFuncs exaGCFuncs = {
exaValidateGC,
miChangeGC,
miCopyGC,
miDestroyGC,
miChangeClip,
miDestroyClip,
miCopyClip
};
static int
exaCreateGC (GCPtr pGC)
{
STRACE;
if (!fbCreateGC (pGC))
return FALSE;
pGC->funcs = &exaGCFuncs;
return TRUE;
}
static void
exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
{
RegionRec rgnDst;
int dx, dy;
PixmapPtr pPixmap = (*pWin->drawable.pScreen->GetWindowPixmap) (pWin);
ScrnInfoPtr pScrn = XF86SCRNINFO(pWin->drawable.pScreen);
if (!pScrn->vtSema) {
ExaScreenPriv(pWin->drawable.pScreen);
pExaScr->SavedCopyWindow (pWin, ptOldOrg, prgnSrc);
exaDrawableDirty (&pWin->drawable);
return;
}
STRACE;
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 void
exaFillRegionSolid (DrawablePtr pDrawable,
RegionPtr pRegion,
Pixel pixel)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap;
int xoff, yoff;
STRACE;
if (pDrawable->width <= pExaScr->info->card.maxX &&
pDrawable->height <= pExaScr->info->card.maxY &&
(pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff)) &&
(*pExaScr->info->accel.PrepareSolid) (pPixmap, GXcopy, FB_ALLONES, pixel))
{
int nbox = REGION_NUM_RECTS (pRegion);
BoxPtr pBox = REGION_RECTS (pRegion);
while (nbox--)
{
(*pExaScr->info->accel.Solid) (pPixmap,
pBox->x1 + xoff, pBox->y1 + yoff,
pBox->x2 + xoff, pBox->y2 + yoff);
pBox++;
}
(*pExaScr->info->accel.DoneSolid) (pPixmap);
exaMarkSync(pDrawable->pScreen);
exaDrawableDirty (pDrawable);
}
else
{
EXA_FALLBACK(("to 0x%lx\n", (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
fbFillRegionSolid (pDrawable, pRegion, 0,
fbReplicatePixel (pixel, pDrawable->bitsPerPixel));
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
}
/* Try to do an accelerated tile of the pTile into pRegion of pDrawable.
* Based on fbFillRegionTiled(), fbTile().
*/
static void
exaFillRegionTiled (DrawablePtr pDrawable,
RegionPtr pRegion,
PixmapPtr pTile)
{
ExaScreenPriv(pDrawable->pScreen);
PixmapPtr pPixmap;
int xoff, yoff;
int tileWidth, tileHeight;
STRACE;
tileWidth = pTile->drawable.width;
tileHeight = pTile->drawable.height;
if (pDrawable->width > pExaScr->info->card.maxX ||
pDrawable->height > pExaScr->info->card.maxY ||
tileWidth > pExaScr->info->card.maxX ||
tileHeight > pExaScr->info->card.maxY)
{
goto fallback;
}
/* If we're filling with a solid color, grab it out and go to
* FillRegionSolid, saving numerous copies.
*/
if (pDrawable->width == 1 && pDrawable->height == 1) {
CARD32 pixel;
exaDrawableUseMemory(&pTile->drawable);
exaPrepareAccess(&pTile->drawable, EXA_PREPARE_SRC);
switch (pTile->drawable.bitsPerPixel) {
case 8:
pixel = *(CARD8 *)(pTile->devPrivate.ptr);
break;
case 16:
pixel = *(CARD16 *)(pTile->devPrivate.ptr);
break;
case 32:
pixel = *(CARD32 *)(pTile->devPrivate.ptr);
break;
default:
exaFinishAccess(&pTile->drawable, EXA_PREPARE_SRC);
goto fallback;
}
exaFinishAccess(&pTile->drawable, EXA_PREPARE_SRC);
exaFillRegionSolid(pDrawable, pRegion, pixel);
return;
}
pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff);
if (!pPixmap)
goto fallback;
exaPixmapUseScreen(pTile);
if (!exaPixmapIsOffscreen(pTile))
goto fallback;
if ((*pExaScr->info->accel.PrepareCopy) (pTile, pPixmap, 0, 0, GXcopy,
FB_ALLONES))
{
int nbox = REGION_NUM_RECTS (pRegion);
BoxPtr pBox = REGION_RECTS (pRegion);
while (nbox--)
{
int height = pBox->y2 - pBox->y1;
int dstY = pBox->y1;
int tileY;
tileY = (dstY - pDrawable->y) % tileHeight;
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;
tileX = (dstX - pDrawable->x) % tileWidth;
while (width > 0) {
int w = tileWidth - tileX;
if (w > width)
w = width;
width -= w;
(*pExaScr->info->accel.Copy) (pPixmap,
tileX, tileY,
dstX + xoff, dstY + yoff,
w, h);
dstX += w;
tileX = 0;
}
dstY += h;
tileY = 0;
}
pBox++;
}
(*pExaScr->info->accel.DoneCopy) (pPixmap);
exaMarkSync(pDrawable->pScreen);
exaDrawableDirty (pDrawable);
return;
}
fallback:
EXA_FALLBACK(("from 0x%lx to 0x%lx\n", (long)pTile, (long)pDrawable));
exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
exaPrepareAccess ((DrawablePtr)pTile, EXA_PREPARE_SRC);
fbFillRegionTiled (pDrawable, pRegion, pTile);
exaFinishAccess ((DrawablePtr)pTile, EXA_PREPARE_SRC);
exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
}
static void
exaPaintWindow(WindowPtr pWin, RegionPtr pRegion, int what)
{
ScrnInfoPtr pScrn = XF86SCRNINFO(pWin->drawable.pScreen);
STRACE;
if (!REGION_NUM_RECTS(pRegion))
return;
if (pScrn->vtSema) {
switch (what) {
case PW_BACKGROUND:
switch (pWin->backgroundState) {
case None:
return;
case ParentRelative:
do {
pWin = pWin->parent;
} while (pWin->backgroundState == ParentRelative);
(*pWin->drawable.pScreen->PaintWindowBackground)(pWin, pRegion,
what);
return;
case BackgroundPixel:
exaFillRegionSolid((DrawablePtr)pWin, pRegion, pWin->background.pixel);
return;
case BackgroundPixmap:
exaFillRegionTiled((DrawablePtr)pWin, pRegion, pWin->background.pixmap);
return;
}
break;
case PW_BORDER:
if (pWin->borderIsPixel) {
exaFillRegionSolid((DrawablePtr)pWin, pRegion, pWin->border.pixel);
return;
} else {
exaFillRegionTiled((DrawablePtr)pWin, pRegion, pWin->border.pixmap);
return;
}
break;
}
}
ExaCheckPaintWindow (pWin, pRegion, what);
}
static Bool
exaCloseScreen(int i, ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
#ifdef RENDER
PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
#endif
ScrnInfoPtr pScrn = XF86SCRNINFO(pScreen);
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;
}
#endif
if (pExaScr->wrappedEnableDisableFB)
pScrn->EnableDisableFBAccess = pExaScr->SavedEnableDisableFBAccess;
xfree (pExaScr);
return (*pScreen->CloseScreen) (i, pScreen);
}
Bool
exaDriverInit (ScreenPtr pScreen,
ExaDriverPtr pScreenInfo)
{
/* Do NOT use XF86SCRNINFO macro here!! */
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
ExaScreenPrivPtr pExaScr;
#ifdef RENDER
PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
#endif
STRACE;
if (exaGeneration != serverGeneration)
{
exaScreenPrivateIndex = AllocateScreenPrivateIndex();
exaPixmapPrivateIndex = AllocatePixmapPrivateIndex();
exaGeneration = serverGeneration;
}
pExaScr = xcalloc (sizeof (ExaScreenPrivRec), 1);
if (!pExaScr) {
xf86DrvMsg(pScreen->myNum, X_WARNING,
"EXA: Failed to allocate screen private\n");
return FALSE;
}
pExaScr->info = pScreenInfo;
pScreen->devPrivates[exaScreenPrivateIndex].ptr = (pointer) pExaScr;
/*
* Replace various fb screen functions
*/
pExaScr->SavedCloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = exaCloseScreen;
pExaScr->SavedCreateGC = pScreen->CreateGC;
pScreen->CreateGC = exaCreateGC;
pExaScr->SavedGetImage = pScreen->GetImage;
pScreen->GetImage = ExaCheckGetImage;
pExaScr->SavedGetSpans = pScreen->GetSpans;
pScreen->GetSpans = ExaCheckGetSpans;
pExaScr->SavedCopyWindow = pScreen->CopyWindow;
pScreen->CopyWindow = exaCopyWindow;
pExaScr->SavedPaintWindowBackground = pScreen->PaintWindowBackground;
pScreen->PaintWindowBackground = exaPaintWindow;
pExaScr->SavedPaintWindowBorder = pScreen->PaintWindowBorder;
pScreen->PaintWindowBorder = exaPaintWindow;
pScreen->BackingStoreFuncs.SaveAreas = ExaCheckSaveAreas;
pScreen->BackingStoreFuncs.RestoreAreas = ExaCheckRestoreAreas;
#ifdef RENDER
if (ps) {
pExaScr->SavedComposite = ps->Composite;
ps->Composite = exaComposite;
pExaScr->SavedGlyphs = ps->Glyphs;
ps->Glyphs = exaGlyphs;
}
#endif
miDisableCompositeWrapper(pScreen);
/*
* Hookup offscreen pixmaps
*/
if ((pExaScr->info->card.flags & EXA_OFFSCREEN_PIXMAPS) &&
pExaScr->info->card.offScreenBase < pExaScr->info->card.memorySize)
{
if (!AllocatePixmapPrivate(pScreen, exaPixmapPrivateIndex,
sizeof (ExaPixmapPrivRec))) {
xf86DrvMsg(pScreen->myNum, X_WARNING,
"EXA: Failed to allocate pixmap private\n");
return FALSE;
}
pExaScr->SavedCreatePixmap = pScreen->CreatePixmap;
pScreen->CreatePixmap = exaCreatePixmap;
pExaScr->SavedDestroyPixmap = pScreen->DestroyPixmap;
pScreen->DestroyPixmap = exaDestroyPixmap;
}
else
{
xf86DrvMsg(pScreen->myNum, X_INFO, "EXA: No offscreen pixmaps\n");
if (!AllocatePixmapPrivate(pScreen, exaPixmapPrivateIndex, 0))
return FALSE;
}
DBG_PIXMAP(("============== %ld < %ld\n", pExaScr->info->card.offScreenBase,
pExaScr->info->card.memorySize));
if (pExaScr->info->card.offScreenBase < pExaScr->info->card.memorySize) {
if (!exaOffscreenInit (pScreen)) {
xf86DrvMsg(pScreen->myNum, X_WARNING,
"EXA: Offscreen pixmap setup failed\n");
return FALSE;
}
pExaScr->SavedEnableDisableFBAccess = pScrn->EnableDisableFBAccess;
pScrn->EnableDisableFBAccess = exaEnableDisableFBAccess;
pExaScr->wrappedEnableDisableFB = TRUE;
}
return TRUE;
}
void
exaDriverFini (ScreenPtr pScreen)
{
/*right now does nothing*/
}
void exaMarkSync(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
ExaCardInfoPtr card = &(pExaScr->info->card);
card->needsSync = TRUE;
if (pExaScr->info->accel.MarkSync != NULL) {
card->lastMarker = (*pExaScr->info->accel.MarkSync)(pScreen);
}
}
void exaWaitSync(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
ExaCardInfoPtr card = &(pExaScr->info->card);
ScrnInfoPtr pScrn = XF86SCRNINFO(pScreen);
if (card->needsSync && pScrn->vtSema) {
(*pExaScr->info->accel.WaitMarker)(pScreen, card->lastMarker);
card->needsSync = FALSE;
}
}
unsigned int exaGetVersion(void)
{
return EXA_VERSION;
}
#ifdef XFree86LOADER
static MODULESETUPPROTO(exaSetup);
static const OptionInfoRec EXAOptions[] = {
{ -1, NULL,
OPTV_NONE, {0}, FALSE }
};
/*ARGSUSED*/
static const OptionInfoRec *
EXAAvailableOptions(void *unused)
{
return (EXAOptions);
}
static XF86ModuleVersionInfo exaVersRec =
{
"exa",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
1, 2, 0,
ABI_CLASS_VIDEODRV, /* requires the video driver ABI */
ABI_VIDEODRV_VERSION,
MOD_CLASS_NONE,
{0,0,0,0}
};
XF86ModuleData exaModuleData = { &exaVersRec, exaSetup, NULL };
ModuleInfoRec EXA = {
1,
"EXA",
NULL,
0,
EXAAvailableOptions,
};
/*ARGSUSED*/
static pointer
exaSetup(pointer Module, pointer Options, int *ErrorMajor, int *ErrorMinor)
{
static Bool Initialised = FALSE;
if (!Initialised) {
Initialised = TRUE;
#ifndef REMOVE_LOADER_CHECK_MODULE_INFO
if (xf86LoaderCheckSymbol("xf86AddModuleInfo"))
#endif
xf86AddModuleInfo(&EXA, Module);
}
return (pointer)TRUE;
}
#endif
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