andreacavalli/xserver-multidpi
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
cb61cf5c99
xserver-multidpi/exa/exa.c
Eric Anholt f36153e3ef Replace usage of DamageRegionAppend with DamageDamageRegion to fix reportAfter. 
In all these cases, any rendering implied by this damage has already
occurred, and we want to get the damage out to the client.  Some of
the DamageRegionAppend calls were explicitly telling damage to flush
the reportAfter damage out, but not all.

Bug #30260. Fixes the compiz wallpaper plugin with client damage
changed to reportAfter.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-11-10 15:51:03 -08:00

1158 lines
33 KiB
C
Raw Blame History

/*
* 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.
*/
/** @file
* This file covers the initialization and teardown of EXA, and has various
* functions not responsible for performing rendering, pixmap migration, or
* memory management.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <stdlib.h>
#include "exa_priv.h"
#include "exa.h"
DevPrivateKeyRec exaScreenPrivateKeyRec;
DevPrivateKeyRec exaPixmapPrivateKeyRec;
DevPrivateKeyRec exaGCPrivateKeyRec;
#ifdef MITSHM
static ShmFuncs exaShmFuncs = { NULL, NULL };
#endif
/**
* 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);
return (CARD8 *)pExaPixmap->fb_ptr - pExaScr->info->memoryBase;
}
void *
exaGetPixmapDriverPrivate(PixmapPtr pPix)
{
ExaPixmapPriv(pPix);
return pExaPixmap->driverPriv;
}
/**
* exaGetPixmapPitch() returns the pitch (in bytes) of the given pixmap.
*
* This is a helper to make driver code more obvious, due to the rather obscure
* naming of the pitch field in the pixmap.
*/
unsigned long
exaGetPixmapPitch(PixmapPtr pPix)
{
return pPix->devKind;
}
/**
* 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;
}
/**
* exaGetDrawablePixmap() returns a backing pixmap for a given drawable.
*
* @param pDrawable the drawable being requested.
*
* This function returns the backing pixmap for a drawable, whether it is a
* redirected window, unredirected window, or already a pixmap. Note that
* coordinate translation is needed when drawing to the backing pixmap of a
* redirected window, and the translation coordinates are provided by calling
* exaGetOffscreenPixmap() on the drawable.
*/
PixmapPtr
exaGetDrawablePixmap(DrawablePtr pDrawable)
{
if (pDrawable->type == DRAWABLE_WINDOW)
return pDrawable->pScreen->GetWindowPixmap ((WindowPtr) pDrawable);
else
return (PixmapPtr) pDrawable;
}
/**
* Sets the offsets to add to coordinates to make them address the same bits in
* the backing drawable. These coordinates are nonzero only for redirected
* windows.
*/
void
exaGetDrawableDeltas (DrawablePtr pDrawable, PixmapPtr pPixmap,
int *xp, int *yp)
{
#ifdef COMPOSITE
if (pDrawable->type == DRAWABLE_WINDOW) {
*xp = -pPixmap->screen_x;
*yp = -pPixmap->screen_y;
return;
}
#endif
*xp = 0;
*yp = 0;
}
/**
* exaPixmapDirty() marks a pixmap as dirty, allowing for
* optimizations in pixmap migration when no changes have occurred.
*/
void
exaPixmapDirty (PixmapPtr pPix, int x1, int y1, int x2, int y2)
{
BoxRec box;
RegionRec region;
box.x1 = max(x1, 0);
box.y1 = max(y1, 0);
box.x2 = min(x2, pPix->drawable.width);
box.y2 = min(y2, pPix->drawable.height);
if (box.x1 >= box.x2 || box.y1 >= box.y2)
return;
RegionInit(&region, &box, 1);
DamageDamageRegion(&pPix->drawable, &region);
RegionUninit(&region);
}
static int
exaLog2(int val)
{
int bits;
if (val <= 0)
return 0;
for (bits = 0; val != 0; bits++)
val >>= 1;
return bits - 1;
}
void
exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
int w, int h, int bpp)
{
pExaPixmap->accel_blocked = 0;
if (pExaScr->info->maxPitchPixels) {
int max_pitch = pExaScr->info->maxPitchPixels * bits_to_bytes(bpp);
if (pExaPixmap->fb_pitch > max_pitch)
pExaPixmap->accel_blocked |= EXA_RANGE_PITCH;
}
if (pExaScr->info->maxPitchBytes &&
pExaPixmap->fb_pitch > pExaScr->info->maxPitchBytes)
pExaPixmap->accel_blocked |= EXA_RANGE_PITCH;
if (w > pExaScr->info->maxX)
pExaPixmap->accel_blocked |= EXA_RANGE_WIDTH;
if (h > pExaScr->info->maxY)
pExaPixmap->accel_blocked |= EXA_RANGE_HEIGHT;
}
void
exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
int w, int h, int bpp)
{
if (pExaScr->info->flags & EXA_OFFSCREEN_ALIGN_POT && w != 1)
pExaPixmap->fb_pitch = bits_to_bytes((1 << (exaLog2(w - 1) + 1)) * bpp);
else
pExaPixmap->fb_pitch = bits_to_bytes(w * bpp);
pExaPixmap->fb_pitch = EXA_ALIGN(pExaPixmap->fb_pitch,
pExaScr->info->pixmapPitchAlign);
}
/**
* Returns TRUE if the pixmap is not movable. This is the case where it's a
* pixmap which has no private (almost always bad) or it's a scratch pixmap created by
* some X Server internal component (the score says it's pinned).
*/
Bool
exaPixmapIsPinned (PixmapPtr pPix)
{
ExaPixmapPriv (pPix);
if (pExaPixmap == NULL)
EXA_FatalErrorDebugWithRet(("EXA bug: exaPixmapIsPinned was called on a non-exa pixmap.\n"), TRUE);
return pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED;
}
/**
* exaPixmapHasGpuCopy() 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 exaPixmapHasGpuCopy() is TRUE.
*
* @return TRUE if the given drawable is in framebuffer memory.
*/
Bool
exaPixmapHasGpuCopy(PixmapPtr pPixmap)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv(pScreen);
if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS))
return FALSE;
return (*pExaScr->pixmap_has_gpu_copy)(pPixmap);
}
/**
* exaDrawableIsOffscreen() is a convenience wrapper for exaPixmapHasGpuCopy().
*/
Bool
exaDrawableIsOffscreen (DrawablePtr pDrawable)
{
return exaPixmapHasGpuCopy (exaGetDrawablePixmap (pDrawable));
}
/**
* Returns the pixmap which backs a drawable, and the offsets to add to
* coordinates to make them address the same bits in the backing drawable.
*/
PixmapPtr
exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp)
{
PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
exaGetDrawableDeltas (pDrawable, pPixmap, xp, yp);
if (exaPixmapHasGpuCopy (pPixmap))
return pPixmap;
else
return NULL;
}
/**
* Returns TRUE if the pixmap GPU copy is being accessed.
*/
Bool
ExaDoPrepareAccess(PixmapPtr pPixmap, int index)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv (pScreen);
ExaPixmapPriv(pPixmap);
Bool has_gpu_copy, ret;
int i;
if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS))
return FALSE;
if (pExaPixmap == NULL)
EXA_FatalErrorDebugWithRet(("EXA bug: ExaDoPrepareAccess was called on a non-exa pixmap.\n"), FALSE);
/* Handle repeated / nested calls. */
for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) {
if (pExaScr->access[i].pixmap == pPixmap) {
pExaScr->access[i].count++;
return pExaScr->access[i].retval;
}
}
/* If slot for this index is taken, find an empty slot */
if (pExaScr->access[index].pixmap) {
for (index = EXA_NUM_PREPARE_INDICES - 1; index >= 0; index--)
if (!pExaScr->access[index].pixmap)
break;
}
/* Access to this pixmap hasn't been prepared yet, so data pointer should be NULL. */
if (pPixmap->devPrivate.ptr != NULL) {
EXA_FatalErrorDebug(("EXA bug: pPixmap->devPrivate.ptr was %p, but should have been NULL.\n",
pPixmap->devPrivate.ptr));
}
has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
if (has_gpu_copy && pExaPixmap->fb_ptr) {
pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr;
ret = TRUE;
} else {
pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
ret = FALSE;
}
/* Store so we can handle repeated / nested calls. */
pExaScr->access[index].pixmap = pPixmap;
pExaScr->access[index].count = 1;
if (!has_gpu_copy)
goto out;
exaWaitSync (pScreen);
if (pExaScr->info->PrepareAccess == NULL)
goto out;
if (index >= EXA_PREPARE_AUX_DEST &&
!(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) {
if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED)
FatalError("Unsupported AUX indices used on a pinned pixmap.\n");
exaMoveOutPixmap (pPixmap);
ret = FALSE;
goto out;
}
if (!(*pExaScr->info->PrepareAccess) (pPixmap, index)) {
if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED &&
!(pExaScr->info->flags & EXA_MIXED_PIXMAPS))
FatalError("Driver failed PrepareAccess on a pinned pixmap.\n");
exaMoveOutPixmap (pPixmap);
ret = FALSE;
goto out;
}
ret = TRUE;
out:
pExaScr->access[index].retval = ret;
return ret;
}
/**
* 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)
{
PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
ExaScreenPriv(pDrawable->pScreen);
if (pExaScr->prepare_access_reg)
pExaScr->prepare_access_reg(pPixmap, index, NULL);
else
(void)ExaDoPrepareAccess(pPixmap, index);
}
/**
* 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 = exaGetDrawablePixmap (pDrawable);
ExaPixmapPriv (pPixmap);
int i;
if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS))
return;
if (pExaPixmap == NULL)
EXA_FatalErrorDebugWithRet(("EXA bug: exaFinishAccesss was called on a non-exa pixmap.\n"),);
/* Handle repeated / nested calls. */
for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) {
if (pExaScr->access[i].pixmap == pPixmap) {
if (--pExaScr->access[i].count > 0)
return;
break;
}
}
/* Catch unbalanced Prepare/FinishAccess calls. */
if (i == EXA_NUM_PREPARE_INDICES)
EXA_FatalErrorDebugWithRet(("EXA bug: FinishAccess called without PrepareAccess for pixmap 0x%p.\n",
pPixmap),);
pExaScr->access[i].pixmap = NULL;
/* We always hide the devPrivate.ptr. */
pPixmap->devPrivate.ptr = NULL;
if (!pExaScr->info->FinishAccess || !exaPixmapHasGpuCopy(pPixmap))
return;
if (i >= EXA_PREPARE_AUX_DEST &&
!(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) {
ErrorF("EXA bug: Trying to call driver FinishAccess hook with "
"unsupported index EXA_PREPARE_AUX*\n");
return;
}
(*pExaScr->info->FinishAccess) (pPixmap, i);
}
/**
* Helper for things common to all schemes when a pixmap is destroyed
*/
void
exaDestroyPixmap(PixmapPtr pPixmap)
{
ExaScreenPriv(pPixmap->drawable.pScreen);
int i;
/* Finish access if it was prepared (e.g. pixmap created during
* software fallback)
*/
for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) {
if (pExaScr->access[i].pixmap == pPixmap) {
exaFinishAccess(&pPixmap->drawable, i);
pExaScr->access[i].pixmap = NULL;
break;
}
}
}
/**
* Here begins EXA's GC code.
* Do not ever access the fb/mi layer directly.
*/
static void
exaValidateGC(GCPtr pGC,
unsigned long changes,
DrawablePtr pDrawable);
static void
exaDestroyGC(GCPtr pGC);
static void
exaChangeGC (GCPtr pGC,
unsigned long mask);
static void
exaCopyGC (GCPtr pGCSrc,
unsigned long mask,
GCPtr pGCDst);
static void
exaChangeClip (GCPtr pGC,
int type,
pointer pvalue,
int nrects);
static void
exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc);
static void
exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc);
static void
exaDestroyClip(GCPtr pGC);
const GCFuncs exaGCFuncs = {
exaValidateGC,
exaChangeGC,
exaCopyGC,
exaDestroyGC,
exaChangeClip,
exaDestroyClip,
exaCopyClip
};
static void
exaValidateGC(GCPtr pGC,
unsigned long changes,
DrawablePtr pDrawable)
{
/* fbValidateGC will do direct access to pixmaps if the tiling has changed.
* Do a few smart things so fbValidateGC can do it's work.
*/
ScreenPtr pScreen = pDrawable->pScreen;
ExaScreenPriv(pScreen);
ExaGCPriv(pGC);
PixmapPtr pTile = NULL;
Bool finish_current_tile = FALSE;
/* Either of these conditions is enough to trigger access to a tile pixmap. */
/* With pGC->tileIsPixel == 1, you run the risk of dereferencing an invalid tile pixmap pointer. */
if (pGC->fillStyle == FillTiled || ((changes & GCTile) && !pGC->tileIsPixel)) {
pTile = pGC->tile.pixmap;
/* Sometimes tile pixmaps are swapped, you need access to:
* - The current tile if it depth matches.
* - Or the rotated tile if that one matches depth and !(changes & GCTile).
* - Or the current tile pixmap and a newly created one.
*/
if (pTile && pTile->drawable.depth != pDrawable->depth && !(changes & GCTile)) {
PixmapPtr pRotatedTile = fbGetRotatedPixmap(pGC);
if (pRotatedTile && pRotatedTile->drawable.depth == pDrawable->depth)
pTile = pRotatedTile;
else
finish_current_tile = TRUE; /* CreatePixmap will be called. */
}
}
if (pGC->stipple)
exaPrepareAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK);
if (pTile)
exaPrepareAccess(&pTile->drawable, EXA_PREPARE_SRC);
/* Calls to Create/DestroyPixmap have to be identified as special. */
pExaScr->fallback_counter++;
swap(pExaGC, pGC, funcs);
(*pGC->funcs->ValidateGC)(pGC, changes, pDrawable);
swap(pExaGC, pGC, funcs);
pExaScr->fallback_counter--;
if (pTile)
exaFinishAccess(&pTile->drawable, EXA_PREPARE_SRC);
if (finish_current_tile && pGC->tile.pixmap)
exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_AUX_DEST);
if (pGC->stipple)
exaFinishAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK);
}
/* Is exaPrepareAccessGC() needed? */
static void
exaDestroyGC(GCPtr pGC)
{
ExaGCPriv(pGC);
swap(pExaGC, pGC, funcs);
(*pGC->funcs->DestroyGC)(pGC);
swap(pExaGC, pGC, funcs);
}
static void
exaChangeGC (GCPtr pGC,
unsigned long mask)
{
ExaGCPriv(pGC);
swap(pExaGC, pGC, funcs);
(*pGC->funcs->ChangeGC) (pGC, mask);
swap(pExaGC, pGC, funcs);
}
static void
exaCopyGC (GCPtr pGCSrc,
unsigned long mask,
GCPtr pGCDst)
{
ExaGCPriv(pGCDst);
swap(pExaGC, pGCDst, funcs);
(*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);
swap(pExaGC, pGCDst, funcs);
}
static void
exaChangeClip (GCPtr pGC,
int type,
pointer pvalue,
int nrects)
{
ExaGCPriv(pGC);
swap(pExaGC, pGC, funcs);
(*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects);
swap(pExaGC, pGC, funcs);
}
static void
exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc)
{
ExaGCPriv(pGCDst);
swap(pExaGC, pGCDst, funcs);
(*pGCDst->funcs->CopyClip)(pGCDst, pGCSrc);
swap(pExaGC, pGCDst, funcs);
}
static void
exaDestroyClip(GCPtr pGC)
{
ExaGCPriv(pGC);
swap(pExaGC, pGC, funcs);
(*pGC->funcs->DestroyClip)(pGC);
swap(pExaGC, pGC, funcs);
}
/**
* exaCreateGC makes a new GC and hooks up its funcs handler, so that
* exaValidateGC() will get called.
*/
static int
exaCreateGC (GCPtr pGC)
{
ScreenPtr pScreen = pGC->pScreen;
ExaScreenPriv(pScreen);
ExaGCPriv(pGC);
Bool ret;
swap(pExaScr, pScreen, CreateGC);
if ((ret = (*pScreen->CreateGC) (pGC))) {
wrap(pExaGC, pGC, funcs, (GCFuncs *) &exaGCFuncs);
wrap(pExaGC, pGC, ops, (GCOps *) &exaOps);
}
swap(pExaScr, pScreen, CreateGC);
return ret;
}
static Bool
exaChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
{
Bool ret;
ScreenPtr pScreen = pWin->drawable.pScreen;
ExaScreenPriv(pScreen);
if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap)
exaPrepareAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC);
if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE)
exaPrepareAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK);
pExaScr->fallback_counter++;
swap(pExaScr, pScreen, ChangeWindowAttributes);
ret = pScreen->ChangeWindowAttributes(pWin, mask);
swap(pExaScr, pScreen, ChangeWindowAttributes);
pExaScr->fallback_counter--;
if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap)
exaFinishAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC);
if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE)
exaFinishAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK);
return ret;
}
static RegionPtr
exaBitmapToRegion(PixmapPtr pPix)
{
RegionPtr ret;
ScreenPtr pScreen = pPix->drawable.pScreen;
ExaScreenPriv(pScreen);
exaPrepareAccess(&pPix->drawable, EXA_PREPARE_SRC);
swap(pExaScr, pScreen, BitmapToRegion);
ret = (*pScreen->BitmapToRegion)(pPix);
swap(pExaScr, pScreen, BitmapToRegion);
exaFinishAccess(&pPix->drawable, EXA_PREPARE_SRC);
return ret;
}
static Bool
exaCreateScreenResources(ScreenPtr pScreen)
{
ExaScreenPriv(pScreen);
PixmapPtr pScreenPixmap;
Bool b;
swap(pExaScr, pScreen, CreateScreenResources);
b = pScreen->CreateScreenResources(pScreen);
swap(pExaScr, pScreen, CreateScreenResources);
if (!b)
return FALSE;
pScreenPixmap = pScreen->GetScreenPixmap(pScreen);
if (pScreenPixmap) {
ExaPixmapPriv(pScreenPixmap);
exaSetAccelBlock(pExaScr, pExaPixmap,
pScreenPixmap->drawable.width,
pScreenPixmap->drawable.height,
pScreenPixmap->drawable.bitsPerPixel);
}
return TRUE;
}
static void
ExaBlockHandler(int screenNum, pointer blockData, pointer pTimeout,
pointer pReadmask)
{
ScreenPtr pScreen = screenInfo.screens[screenNum];
ExaScreenPriv(pScreen);
/* Move any deferred results from a software fallback to the driver pixmap */
if (pExaScr->deferred_mixed_pixmap)
exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap);
unwrap(pExaScr, pScreen, BlockHandler);
(*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler);
/* The rest only applies to classic EXA */
if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS)
return;
/* Try and keep the offscreen memory area tidy every now and then (at most
* once per second) when the server has been idle for at least 100ms.
*/
if (pExaScr->numOffscreenAvailable > 1) {
CARD32 now = GetTimeInMillis();
pExaScr->nextDefragment = now +
max(100, (INT32)(pExaScr->lastDefragment + 1000 - now));
AdjustWaitForDelay(pTimeout, pExaScr->nextDefragment - now);
}
}
static void
ExaWakeupHandler(int screenNum, pointer wakeupData, unsigned long result,
pointer pReadmask)
{
ScreenPtr pScreen = screenInfo.screens[screenNum];
ExaScreenPriv(pScreen);
unwrap(pExaScr, pScreen, WakeupHandler);
(*pScreen->WakeupHandler) (screenNum, wakeupData, result, pReadmask);
wrap(pExaScr, pScreen, WakeupHandler, ExaWakeupHandler);
if (result == 0 && pExaScr->numOffscreenAvailable > 1) {
CARD32 now = GetTimeInMillis();
if ((int)(now - pExaScr->nextDefragment) > 0) {
ExaOffscreenDefragment(pScreen);
pExaScr->lastDefragment = now;
}
}
}
/**
* 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);
PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
if (ps->Glyphs == exaGlyphs)
exaGlyphsFini(pScreen);
if (pScreen->BlockHandler == ExaBlockHandler)
unwrap(pExaScr, pScreen, BlockHandler);
if (pScreen->WakeupHandler == ExaWakeupHandler)
unwrap(pExaScr, pScreen, WakeupHandler);
unwrap(pExaScr, pScreen, CreateGC);
unwrap(pExaScr, pScreen, CloseScreen);
unwrap(pExaScr, pScreen, GetImage);
unwrap(pExaScr, pScreen, GetSpans);
if (pExaScr->SavedCreatePixmap)
unwrap(pExaScr, pScreen, CreatePixmap);
if (pExaScr->SavedDestroyPixmap)
unwrap(pExaScr, pScreen, DestroyPixmap);
if (pExaScr->SavedModifyPixmapHeader)
unwrap(pExaScr, pScreen, ModifyPixmapHeader);
unwrap(pExaScr, pScreen, CopyWindow);
unwrap(pExaScr, pScreen, ChangeWindowAttributes);
unwrap(pExaScr, pScreen, BitmapToRegion);
unwrap(pExaScr, pScreen, CreateScreenResources);
unwrap(pExaScr, ps, Composite);
if (pExaScr->SavedGlyphs)
unwrap(pExaScr, ps, Glyphs);
unwrap(pExaScr, ps, Trapezoids);
unwrap(pExaScr, ps, Triangles);
unwrap(pExaScr, ps, AddTraps);
free(pExaScr);
return (*pScreen->CloseScreen) (i, pScreen);
}
/**
* This function allocates a driver structure for EXA drivers to fill in. By
* having EXA allocate the structure, the driver structure can be extended
* without breaking ABI between EXA and the drivers. The driver's
* responsibility is to check beforehand that the EXA module has a matching
* major number and sufficient minor. Drivers are responsible for freeing the
* driver structure using free().
*
* @return a newly allocated, zero-filled driver structure
*/
ExaDriverPtr
exaDriverAlloc(void)
{
return calloc(1, sizeof(ExaDriverRec));
}
/**
* @param pScreen screen being initialized
* @param pScreenInfo EXA driver record
*
* exaDriverInit sets up EXA given a driver record filled in by the driver.
* pScreenInfo should have been allocated by exaDriverAlloc(). See the
* comments in _ExaDriver for what must be filled in and what is optional.
*
* @return TRUE if EXA was successfully initialized.
*/
Bool
exaDriverInit (ScreenPtr pScreen,
ExaDriverPtr pScreenInfo)
{
ExaScreenPrivPtr pExaScr;
PictureScreenPtr ps;
if (!pScreenInfo)
return FALSE;
if (pScreenInfo->exa_major != EXA_VERSION_MAJOR ||
pScreenInfo->exa_minor > EXA_VERSION_MINOR)
{
LogMessage(X_ERROR, "EXA(%d): driver's EXA version requirements "
"(%d.%d) are incompatible with EXA version (%d.%d)\n",
pScreen->myNum,
pScreenInfo->exa_major, pScreenInfo->exa_minor,
EXA_VERSION_MAJOR, EXA_VERSION_MINOR);
return FALSE;
}
if (!pScreenInfo->CreatePixmap && !pScreenInfo->CreatePixmap2) {
if (!pScreenInfo->memoryBase) {
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memoryBase "
"must be non-zero\n", pScreen->myNum);
return FALSE;
}
if (!pScreenInfo->memorySize) {
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memorySize must be "
"non-zero\n", pScreen->myNum);
return FALSE;
}
if (pScreenInfo->offScreenBase > pScreenInfo->memorySize) {
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::offScreenBase must "
"be <= ExaDriverRec::memorySize\n", pScreen->myNum);
return FALSE;
}
}
if (!pScreenInfo->PrepareSolid) {
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareSolid must be "
"non-NULL\n", pScreen->myNum);
return FALSE;
}
if (!pScreenInfo->PrepareCopy) {
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareCopy must be "
"non-NULL\n", pScreen->myNum);
return FALSE;
}
if (!pScreenInfo->WaitMarker) {
LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::WaitMarker must be "
"non-NULL\n", pScreen->myNum);
return FALSE;
}
/* If the driver doesn't set any max pitch values, we'll just assume
* that there's a limitation by pixels, and that it's the same as
* maxX.
*
* We want maxPitchPixels or maxPitchBytes to be set so we can check
* pixmaps against the max pitch in exaCreatePixmap() -- it matters
* whether a pixmap is rejected because of its pitch or
* because of its width.
*/
if (!pScreenInfo->maxPitchPixels && !pScreenInfo->maxPitchBytes)
{
pScreenInfo->maxPitchPixels = pScreenInfo->maxX;
}
ps = GetPictureScreenIfSet(pScreen);
if (!dixRegisterPrivateKey(&exaScreenPrivateKeyRec, PRIVATE_SCREEN, 0)) {
LogMessage(X_WARNING, "EXA(%d): Failed to register screen private\n",
pScreen->myNum);
return FALSE;
}
pExaScr = calloc (sizeof (ExaScreenPrivRec), 1);
if (!pExaScr) {
LogMessage(X_WARNING, "EXA(%d): Failed to allocate screen private\n",
pScreen->myNum);
return FALSE;
}
pExaScr->info = pScreenInfo;
dixSetPrivate(&pScreen->devPrivates, exaScreenPrivateKey, pExaScr);
pExaScr->migration = ExaMigrationAlways;
exaDDXDriverInit(pScreen);
if (!dixRegisterPrivateKey(&exaGCPrivateKeyRec, PRIVATE_GC, sizeof(ExaGCPrivRec))) {
LogMessage(X_WARNING,
"EXA(%d): Failed to allocate GC private\n",
pScreen->myNum);
return FALSE;
}
/*
* Replace various fb screen functions
*/
if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) &&
(!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS) ||
(pExaScr->info->flags & EXA_MIXED_PIXMAPS)))
wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler);
if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) &&
!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS))
wrap(pExaScr, pScreen, WakeupHandler, ExaWakeupHandler);
wrap(pExaScr, pScreen, CreateGC, exaCreateGC);
wrap(pExaScr, pScreen, CloseScreen, exaCloseScreen);
wrap(pExaScr, pScreen, GetImage, exaGetImage);
wrap(pExaScr, pScreen, GetSpans, ExaCheckGetSpans);
wrap(pExaScr, pScreen, CopyWindow, exaCopyWindow);
wrap(pExaScr, pScreen, ChangeWindowAttributes, exaChangeWindowAttributes);
wrap(pExaScr, pScreen, BitmapToRegion, exaBitmapToRegion);
wrap(pExaScr, pScreen, CreateScreenResources, exaCreateScreenResources);
if (ps) {
wrap(pExaScr, ps, Composite, exaComposite);
if (pScreenInfo->PrepareComposite) {
wrap(pExaScr, ps, Glyphs, exaGlyphs);
} else {
wrap(pExaScr, ps, Glyphs, ExaCheckGlyphs);
}
wrap(pExaScr, ps, Trapezoids, exaTrapezoids);
wrap(pExaScr, ps, Triangles, exaTriangles);
wrap(pExaScr, ps, AddTraps, ExaCheckAddTraps);
}
#ifdef MITSHM
/*
* Don't allow shared pixmaps.
*/
ShmRegisterFuncs(pScreen, &exaShmFuncs);
#endif
/*
* Hookup offscreen pixmaps
*/
if (pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)
{
if (!dixRegisterPrivateKey(&exaPixmapPrivateKeyRec, PRIVATE_PIXMAP, sizeof(ExaPixmapPrivRec))) {
LogMessage(X_WARNING,
"EXA(%d): Failed to allocate pixmap private\n",
pScreen->myNum);
return FALSE;
}
if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS) {
if (pExaScr->info->flags & EXA_MIXED_PIXMAPS) {
wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_mixed);
wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_mixed);
wrap(pExaScr, pScreen, ModifyPixmapHeader, exaModifyPixmapHeader_mixed);
pExaScr->do_migration = exaDoMigration_mixed;
pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_mixed;
pExaScr->do_move_in_pixmap = exaMoveInPixmap_mixed;
pExaScr->do_move_out_pixmap = NULL;
pExaScr->prepare_access_reg = exaPrepareAccessReg_mixed;
} else {
wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_driver);
wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_driver);
wrap(pExaScr, pScreen, ModifyPixmapHeader, exaModifyPixmapHeader_driver);
pExaScr->do_migration = NULL;
pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_driver;
pExaScr->do_move_in_pixmap = NULL;
pExaScr->do_move_out_pixmap = NULL;
pExaScr->prepare_access_reg = NULL;
}
} else {
wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_classic);
wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_classic);
wrap(pExaScr, pScreen, ModifyPixmapHeader, exaModifyPixmapHeader_classic);
pExaScr->do_migration = exaDoMigration_classic;
pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_classic;
pExaScr->do_move_in_pixmap = exaMoveInPixmap_classic;
pExaScr->do_move_out_pixmap = exaMoveOutPixmap_classic;
pExaScr->prepare_access_reg = exaPrepareAccessReg_classic;
}
if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) {
LogMessage(X_INFO, "EXA(%d): Offscreen pixmap area of %lu bytes\n",
pScreen->myNum,
pExaScr->info->memorySize - pExaScr->info->offScreenBase);
} else {
LogMessage(X_INFO, "EXA(%d): Driver allocated offscreen pixmaps\n",
pScreen->myNum);
}
}
else
LogMessage(X_INFO, "EXA(%d): No offscreen pixmaps\n", pScreen->myNum);
if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) {
DBG_PIXMAP(("============== %ld < %ld\n", pExaScr->info->offScreenBase,
pExaScr->info->memorySize));
if (pExaScr->info->offScreenBase < pExaScr->info->memorySize) {
if (!exaOffscreenInit (pScreen)) {
LogMessage(X_WARNING, "EXA(%d): Offscreen pixmap setup failed\n",
pScreen->myNum);
return FALSE;
}
}
}
if (ps->Glyphs == exaGlyphs)
exaGlyphsInit(pScreen);
LogMessage(X_INFO, "EXA(%d): Driver registered support for the following"
" operations:\n", pScreen->myNum);
assert(pScreenInfo->PrepareSolid != NULL);
LogMessage(X_INFO, " Solid\n");
assert(pScreenInfo->PrepareCopy != NULL);
LogMessage(X_INFO, " Copy\n");
if (pScreenInfo->PrepareComposite != NULL) {
LogMessage(X_INFO, " Composite (RENDER acceleration)\n");
}
if (pScreenInfo->UploadToScreen != NULL) {
LogMessage(X_INFO, " UploadToScreen\n");
}
if (pScreenInfo->DownloadFromScreen != NULL) {
LogMessage(X_INFO, " DownloadFromScreen\n");
}
return TRUE;
}
/**
* exaDriverFini tears down EXA on a given screen.
*
* @param pScreen screen being torn down.
*/
void
exaDriverFini (ScreenPtr pScreen)
{
/*right now does nothing*/
}
/**
* 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);
}
}
/**
* 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;
}
}
/**
* Performs migration of the pixmaps according to the operation information
* provided in pixmaps and can_accel and the migration scheme chosen in the
* config file.
*/
void
exaDoMigration (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel)
{
ScreenPtr pScreen = pixmaps[0].pPix->drawable.pScreen;
ExaScreenPriv(pScreen);
if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS))
return;
if (pExaScr->do_migration)
(*pExaScr->do_migration)(pixmaps, npixmaps, can_accel);
}
void
exaMoveInPixmap (PixmapPtr pPixmap)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv(pScreen);
if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS))
return;
if (pExaScr->do_move_in_pixmap)
(*pExaScr->do_move_in_pixmap)(pPixmap);
}
void
exaMoveOutPixmap (PixmapPtr pPixmap)
{
ScreenPtr pScreen = pPixmap->drawable.pScreen;
ExaScreenPriv(pScreen);
if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS))
return;
if (pExaScr->do_move_out_pixmap)
(*pExaScr->do_move_out_pixmap)(pPixmap);
}
Reference in New Issue View Git Blame Copy Permalink