29586101dc
Recording damage from other operations (e.g. creating a client damage record) may confuse the migration code resulting in corruption. Option "EXAOptimizeMigration" appears safe now, so enable it by default. Also remove it from the manpage, as it should only be necessary on request in the course of bug report diagnostics anymore.
1069 lines
30 KiB
C
1069 lines
30 KiB
C
/*
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* Copyright © 2001 Keith Packard
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*
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* Partly based on code that is Copyright © The XFree86 Project Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/** @file
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* This file covers the initialization and teardown of EXA, and has various
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* functions not responsible for performing rendering, pixmap migration, or
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* memory management.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <stdlib.h>
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#include "exa_priv.h"
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#include <X11/fonts/fontstruct.h>
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#include "dixfontstr.h"
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#include "exa.h"
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#include "cw.h"
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DevPrivateKey exaScreenPrivateKey = &exaScreenPrivateKey;
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DevPrivateKey exaPixmapPrivateKey = &exaPixmapPrivateKey;
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static _X_INLINE void*
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ExaGetPixmapAddress(PixmapPtr p)
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{
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ExaPixmapPriv(p);
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if (pExaPixmap->offscreen && pExaPixmap->fb_ptr)
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return pExaPixmap->fb_ptr;
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else
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return pExaPixmap->sys_ptr;
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}
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/**
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* exaGetPixmapOffset() returns the offset (in bytes) within the framebuffer of
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* the beginning of the given pixmap.
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*
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* Note that drivers are free to, and often do, munge this offset as necessary
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* for handing to the hardware -- for example, translating it into a different
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* aperture. This function may need to be extended in the future if we grow
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* support for having multiple card-accessible offscreen, such as an AGP memory
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* pool alongside the framebuffer pool.
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*/
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unsigned long
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exaGetPixmapOffset(PixmapPtr pPix)
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{
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ExaScreenPriv (pPix->drawable.pScreen);
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return ((unsigned long)ExaGetPixmapAddress(pPix) -
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(unsigned long)pExaScr->info->memoryBase);
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}
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void *
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exaGetPixmapDriverPrivate(PixmapPtr pPix)
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{
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ExaPixmapPriv(pPix);
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return pExaPixmap->driverPriv;
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}
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/**
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* exaGetPixmapPitch() returns the pitch (in bytes) of the given pixmap.
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*
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* This is a helper to make driver code more obvious, due to the rather obscure
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* naming of the pitch field in the pixmap.
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*/
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unsigned long
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exaGetPixmapPitch(PixmapPtr pPix)
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{
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return pPix->devKind;
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}
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/**
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* exaGetPixmapSize() returns the size in bytes of the given pixmap in video
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* memory. Only valid when the pixmap is currently in framebuffer.
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*/
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unsigned long
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exaGetPixmapSize(PixmapPtr pPix)
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{
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ExaPixmapPrivPtr pExaPixmap;
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pExaPixmap = ExaGetPixmapPriv(pPix);
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if (pExaPixmap != NULL)
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return pExaPixmap->fb_size;
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return 0;
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}
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/**
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* exaGetDrawablePixmap() returns a backing pixmap for a given drawable.
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*
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* @param pDrawable the drawable being requested.
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*
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* This function returns the backing pixmap for a drawable, whether it is a
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* redirected window, unredirected window, or already a pixmap. Note that
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* coordinate translation is needed when drawing to the backing pixmap of a
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* redirected window, and the translation coordinates are provided by calling
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* exaGetOffscreenPixmap() on the drawable.
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*/
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PixmapPtr
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exaGetDrawablePixmap(DrawablePtr pDrawable)
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{
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if (pDrawable->type == DRAWABLE_WINDOW)
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return pDrawable->pScreen->GetWindowPixmap ((WindowPtr) pDrawable);
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else
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return (PixmapPtr) pDrawable;
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}
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/**
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* Sets the offsets to add to coordinates to make them address the same bits in
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* the backing drawable. These coordinates are nonzero only for redirected
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* windows.
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*/
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void
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exaGetDrawableDeltas (DrawablePtr pDrawable, PixmapPtr pPixmap,
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int *xp, int *yp)
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{
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#ifdef COMPOSITE
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if (pDrawable->type == DRAWABLE_WINDOW) {
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*xp = -pPixmap->screen_x;
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*yp = -pPixmap->screen_y;
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return;
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}
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#endif
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*xp = 0;
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*yp = 0;
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}
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/**
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* exaPixmapDirty() marks a pixmap as dirty, allowing for
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* optimizations in pixmap migration when no changes have occurred.
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*/
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void
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exaPixmapDirty (PixmapPtr pPix, int x1, int y1, int x2, int y2)
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{
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ExaPixmapPriv(pPix);
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BoxRec box;
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RegionPtr pDamageReg;
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RegionRec region;
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if (!pExaPixmap)
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return;
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box.x1 = max(x1, 0);
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box.y1 = max(y1, 0);
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box.x2 = min(x2, pPix->drawable.width);
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box.y2 = min(y2, pPix->drawable.height);
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if (box.x1 >= box.x2 || box.y1 >= box.y2)
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return;
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pDamageReg = DamageRegion(pExaPixmap->pDamage);
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REGION_INIT(pScreen, ®ion, &box, 1);
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REGION_UNION(pScreen, pDamageReg, pDamageReg, ®ion);
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REGION_UNINIT(pScreen, ®ion);
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}
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static Bool
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exaDestroyPixmap (PixmapPtr pPixmap)
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{
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ScreenPtr pScreen = pPixmap->drawable.pScreen;
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ExaScreenPriv(pScreen);
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if (pPixmap->refcnt == 1)
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{
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ExaPixmapPriv (pPixmap);
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if (pExaPixmap->driverPriv) {
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pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);
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pExaPixmap->driverPriv = NULL;
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}
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if (pExaPixmap->area)
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{
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DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n",
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(void*)pPixmap->drawable.id,
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ExaGetPixmapPriv(pPixmap)->area->offset,
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pPixmap->drawable.width,
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pPixmap->drawable.height));
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/* Free the offscreen area */
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exaOffscreenFree (pPixmap->drawable.pScreen, pExaPixmap->area);
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pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
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pPixmap->devKind = pExaPixmap->sys_pitch;
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}
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REGION_UNINIT(pPixmap->drawable.pScreen, &pExaPixmap->validSys);
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REGION_UNINIT(pPixmap->drawable.pScreen, &pExaPixmap->validFB);
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}
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return fbDestroyPixmap (pPixmap);
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}
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static int
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exaLog2(int val)
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{
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int bits;
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if (val <= 0)
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return 0;
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for (bits = 0; val != 0; bits++)
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val >>= 1;
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return bits - 1;
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}
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static void
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exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
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int w, int h, int bpp)
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{
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pExaPixmap->accel_blocked = 0;
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if (pExaScr->info->maxPitchPixels) {
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int max_pitch = pExaScr->info->maxPitchPixels * (bpp + 7) / 8;
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if (pExaPixmap->fb_pitch > max_pitch)
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pExaPixmap->accel_blocked |= EXA_RANGE_PITCH;
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}
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if (pExaScr->info->maxPitchBytes &&
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pExaPixmap->fb_pitch > pExaScr->info->maxPitchBytes)
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pExaPixmap->accel_blocked |= EXA_RANGE_PITCH;
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if (w > pExaScr->info->maxX)
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pExaPixmap->accel_blocked |= EXA_RANGE_WIDTH;
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if (h > pExaScr->info->maxY)
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pExaPixmap->accel_blocked |= EXA_RANGE_HEIGHT;
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}
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static void
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exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
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int w, int h, int bpp)
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{
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if (pExaScr->info->flags & EXA_OFFSCREEN_ALIGN_POT && w != 1)
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pExaPixmap->fb_pitch = (1 << (exaLog2(w - 1) + 1)) * bpp / 8;
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else
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pExaPixmap->fb_pitch = w * bpp / 8;
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pExaPixmap->fb_pitch = EXA_ALIGN(pExaPixmap->fb_pitch,
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pExaScr->info->pixmapPitchAlign);
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}
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static void
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ExaDamageReport(DamagePtr pDamage, RegionPtr pReg, void *pClosure)
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{
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PixmapPtr pPixmap = pClosure;
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ExaPixmapPriv(pPixmap);
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RegionPtr pDamageReg = DamageRegion(pDamage);
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if (pExaPixmap->pendingDamage) {
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REGION_UNION(pScreen, pDamageReg, pDamageReg, pReg);
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pExaPixmap->pendingDamage = FALSE;
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}
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}
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/**
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* exaCreatePixmap() creates a new pixmap.
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*
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* If width and height are 0, this won't be a full-fledged pixmap and it will
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* get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because
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* ModifyPixmapHeader() would break migration. These types of pixmaps are used
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* for scratch pixmaps, or to represent the visible screen.
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*/
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static PixmapPtr
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exaCreatePixmap(ScreenPtr pScreen, int w, int h, int depth,
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unsigned usage_hint)
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{
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PixmapPtr pPixmap;
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ExaPixmapPrivPtr pExaPixmap;
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int driver_alloc = 0;
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int bpp;
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ExaScreenPriv(pScreen);
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if (w > 32767 || h > 32767)
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return NullPixmap;
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if (!pExaScr->info->CreatePixmap) {
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pPixmap = fbCreatePixmap (pScreen, w, h, depth, usage_hint);
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} else {
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driver_alloc = 1;
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pPixmap = fbCreatePixmap(pScreen, 0, 0, depth, usage_hint);
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}
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if (!pPixmap)
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return NULL;
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pExaPixmap = ExaGetPixmapPriv(pPixmap);
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pExaPixmap->driverPriv = NULL;
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bpp = pPixmap->drawable.bitsPerPixel;
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if (driver_alloc) {
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size_t paddedWidth, datasize;
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void *driver_priv;
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paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);
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if (paddedWidth / 4 > 32767 || h > 32767)
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return NullPixmap;
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exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
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if (paddedWidth < pExaPixmap->fb_pitch)
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paddedWidth = pExaPixmap->fb_pitch;
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datasize = h * paddedWidth;
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driver_priv = pExaScr->info->CreatePixmap(pScreen, datasize, 0);
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if (!driver_priv) {
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fbDestroyPixmap(pPixmap);
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return NULL;
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}
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(*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
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paddedWidth, NULL);
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pExaPixmap->driverPriv = driver_priv;
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pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
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pExaPixmap->fb_ptr = NULL;
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} else {
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pExaPixmap->driverPriv = NULL;
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/* Scratch pixmaps may have w/h equal to zero, and may not be
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* migrated.
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*/
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if (!w || !h)
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pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
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else
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pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
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pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
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pExaPixmap->sys_pitch = pPixmap->devKind;
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pPixmap->devPrivate.ptr = NULL;
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pExaPixmap->offscreen = FALSE;
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pExaPixmap->fb_ptr = NULL;
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exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
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pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
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if (pExaPixmap->fb_pitch > 131071) {
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fbDestroyPixmap(pPixmap);
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return NULL;
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}
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}
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pExaPixmap->area = NULL;
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/* Set up damage tracking */
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pExaPixmap->pDamage = DamageCreate (ExaDamageReport, NULL, DamageReportRawRegion, TRUE,
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pScreen, pPixmap);
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if (pExaPixmap->pDamage == NULL) {
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fbDestroyPixmap (pPixmap);
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return NULL;
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}
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DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);
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DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);
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/* None of the pixmap bits are valid initially */
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REGION_NULL(pScreen, &pExaPixmap->validSys);
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REGION_NULL(pScreen, &pExaPixmap->validFB);
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exaSetAccelBlock(pExaScr, pExaPixmap,
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w, h, bpp);
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return pPixmap;
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}
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static Bool
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exaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
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int bitsPerPixel, int devKind, pointer pPixData)
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{
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ExaScreenPrivPtr pExaScr;
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ExaPixmapPrivPtr pExaPixmap;
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Bool ret;
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if (!pPixmap)
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return FALSE;
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pExaScr = ExaGetScreenPriv(pPixmap->drawable.pScreen);
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pExaPixmap = ExaGetPixmapPriv(pPixmap);
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if (pExaPixmap) {
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if (pPixData)
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pExaPixmap->sys_ptr = pPixData;
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if (devKind > 0)
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pExaPixmap->sys_pitch = devKind;
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if (width > 0 && height > 0 && bitsPerPixel > 0) {
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exaSetFbPitch(pExaScr, pExaPixmap,
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width, height, bitsPerPixel);
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exaSetAccelBlock(pExaScr, pExaPixmap,
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width, height, bitsPerPixel);
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}
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}
|
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|
|
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if (pExaScr->info->ModifyPixmapHeader) {
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ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth,
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bitsPerPixel, devKind, pPixData);
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if (ret == TRUE)
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return ret;
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}
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return pExaScr->SavedModifyPixmapHeader(pPixmap, width, height, depth,
|
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bitsPerPixel, devKind, pPixData);
|
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}
|
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|
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/**
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* exaPixmapIsOffscreen() is used to determine if a pixmap is in offscreen
|
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* memory, meaning that acceleration could probably be done to it, and that it
|
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* will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it
|
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* with the CPU.
|
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*
|
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* Note that except for UploadToScreen()/DownloadFromScreen() (which explicitly
|
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* deal with moving pixmaps in and out of system memory), EXA will give drivers
|
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* pixmaps as arguments for which exaPixmapIsOffscreen() is TRUE.
|
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*
|
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* @return TRUE if the given drawable is in framebuffer memory.
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*/
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Bool
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exaPixmapIsOffscreen(PixmapPtr p)
|
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{
|
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ScreenPtr pScreen = p->drawable.pScreen;
|
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ExaScreenPriv(pScreen);
|
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ExaPixmapPriv(p);
|
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void *save_ptr;
|
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Bool ret;
|
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|
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save_ptr = p->devPrivate.ptr;
|
|
|
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if (!save_ptr && pExaPixmap && !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS))
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p->devPrivate.ptr = ExaGetPixmapAddress(p);
|
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|
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if (pExaScr->info->PixmapIsOffscreen)
|
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ret = pExaScr->info->PixmapIsOffscreen(p);
|
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else
|
|
ret = ((unsigned long) ((CARD8 *) p->devPrivate.ptr -
|
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(CARD8 *) pExaScr->info->memoryBase) <
|
|
pExaScr->info->memorySize);
|
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|
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p->devPrivate.ptr = save_ptr;
|
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|
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return ret;
|
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}
|
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|
|
/**
|
|
* exaDrawableIsOffscreen() is a convenience wrapper for exaPixmapIsOffscreen().
|
|
*/
|
|
Bool
|
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exaDrawableIsOffscreen (DrawablePtr pDrawable)
|
|
{
|
|
return exaPixmapIsOffscreen (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
|
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exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp)
|
|
{
|
|
PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
|
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|
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exaGetDrawableDeltas (pDrawable, pPixmap, xp, yp);
|
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|
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if (exaPixmapIsOffscreen (pPixmap))
|
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return pPixmap;
|
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else
|
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return NULL;
|
|
}
|
|
|
|
void
|
|
ExaDoPrepareAccess(DrawablePtr pDrawable, int index)
|
|
{
|
|
ScreenPtr pScreen = pDrawable->pScreen;
|
|
ExaScreenPriv (pScreen);
|
|
PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable);
|
|
Bool offscreen = exaPixmapIsOffscreen(pPixmap);
|
|
|
|
/* Unhide pixmap pointer */
|
|
if (pPixmap->devPrivate.ptr == NULL && !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) {
|
|
pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);
|
|
}
|
|
|
|
if (!offscreen)
|
|
return;
|
|
|
|
exaWaitSync (pDrawable->pScreen);
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
void
|
|
exaPrepareAccessReg(DrawablePtr pDrawable, int index, RegionPtr pReg)
|
|
{
|
|
ExaMigrationRec pixmaps[1];
|
|
|
|
pixmaps[0].as_dst = index == EXA_PREPARE_DEST;
|
|
pixmaps[0].as_src = index != EXA_PREPARE_DEST;
|
|
pixmaps[0].pPix = exaGetDrawablePixmap (pDrawable);
|
|
pixmaps[0].pReg = pReg;
|
|
|
|
exaDoMigration(pixmaps, 1, FALSE);
|
|
|
|
ExaDoPrepareAccess(pDrawable, 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)
|
|
{
|
|
exaPrepareAccessReg(pDrawable, index, NULL);
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/* Rehide pixmap pointer if we're doing that. */
|
|
if (pExaPixmap && !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) {
|
|
pPixmap->devPrivate.ptr = NULL;
|
|
}
|
|
|
|
if (pExaScr->info->FinishAccess == NULL)
|
|
return;
|
|
|
|
if (!exaPixmapIsOffscreen (pPixmap))
|
|
return;
|
|
|
|
(*pExaScr->info->FinishAccess) (pPixmap, index);
|
|
}
|
|
|
|
/**
|
|
* exaValidateGC() sets the ops to EXA's implementations, which may be
|
|
* accelerated or may sync the card and fall back to fb.
|
|
*/
|
|
static void
|
|
exaValidateGC (GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
|
|
{
|
|
/* fbValidateGC will do direct access to pixmaps if the tiling has changed.
|
|
* Preempt fbValidateGC by doing its work and masking the change out, so
|
|
* that we can do the Prepare/FinishAccess.
|
|
*/
|
|
#ifdef FB_24_32BIT
|
|
if ((changes & GCTile) && fbGetRotatedPixmap(pGC)) {
|
|
(*pGC->pScreen->DestroyPixmap) (fbGetRotatedPixmap(pGC));
|
|
fbGetRotatedPixmap(pGC) = 0;
|
|
}
|
|
|
|
if (pGC->fillStyle == FillTiled) {
|
|
PixmapPtr pOldTile, pNewTile;
|
|
|
|
pOldTile = pGC->tile.pixmap;
|
|
if (pOldTile->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
|
|
{
|
|
pNewTile = fbGetRotatedPixmap(pGC);
|
|
if (!pNewTile ||
|
|
pNewTile ->drawable.bitsPerPixel != pDrawable->bitsPerPixel)
|
|
{
|
|
if (pNewTile)
|
|
(*pGC->pScreen->DestroyPixmap) (pNewTile);
|
|
/* fb24_32ReformatTile will do direct access of a newly-
|
|
* allocated pixmap. This isn't a problem yet, since we don't
|
|
* put pixmaps in FB until at least one accelerated EXA op.
|
|
*/
|
|
exaPrepareAccess(&pOldTile->drawable, EXA_PREPARE_SRC);
|
|
pNewTile = fb24_32ReformatTile (pOldTile,
|
|
pDrawable->bitsPerPixel);
|
|
exaPixmapDirty(pNewTile, 0, 0, pNewTile->drawable.width, pNewTile->drawable.height);
|
|
exaFinishAccess(&pOldTile->drawable, EXA_PREPARE_SRC);
|
|
}
|
|
if (pNewTile)
|
|
{
|
|
fbGetRotatedPixmap(pGC) = pOldTile;
|
|
pGC->tile.pixmap = pNewTile;
|
|
changes |= GCTile;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if (changes & GCTile) {
|
|
if (!pGC->tileIsPixel && FbEvenTile (pGC->tile.pixmap->drawable.width *
|
|
pDrawable->bitsPerPixel))
|
|
{
|
|
exaPrepareAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
|
|
fbPadPixmap (pGC->tile.pixmap);
|
|
exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
|
|
exaPixmapDirty(pGC->tile.pixmap, 0, 0,
|
|
pGC->tile.pixmap->drawable.width,
|
|
pGC->tile.pixmap->drawable.height);
|
|
}
|
|
/* Mask out the GCTile change notification, now that we've done FB's
|
|
* job for it.
|
|
*/
|
|
changes &= ~GCTile;
|
|
}
|
|
|
|
exaPrepareAccessGC(pGC);
|
|
fbValidateGC (pGC, changes, pDrawable);
|
|
exaFinishAccessGC(pGC);
|
|
|
|
pGC->ops = (GCOps *) &exaOps;
|
|
}
|
|
|
|
static GCFuncs exaGCFuncs = {
|
|
exaValidateGC,
|
|
miChangeGC,
|
|
miCopyGC,
|
|
miDestroyGC,
|
|
miChangeClip,
|
|
miDestroyClip,
|
|
miCopyClip
|
|
};
|
|
|
|
/**
|
|
* exaCreateGC makes a new GC and hooks up its funcs handler, so that
|
|
* exaValidateGC() will get called.
|
|
*/
|
|
static int
|
|
exaCreateGC (GCPtr pGC)
|
|
{
|
|
if (!fbCreateGC (pGC))
|
|
return FALSE;
|
|
|
|
pGC->funcs = &exaGCFuncs;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
exaPrepareAccessWindow(WindowPtr pWin)
|
|
{
|
|
if (pWin->backgroundState == BackgroundPixmap)
|
|
exaPrepareAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC);
|
|
|
|
if (pWin->borderIsPixel == FALSE)
|
|
exaPrepareAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_SRC);
|
|
}
|
|
|
|
void
|
|
exaFinishAccessWindow(WindowPtr pWin)
|
|
{
|
|
if (pWin->backgroundState == BackgroundPixmap)
|
|
exaFinishAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC);
|
|
|
|
if (pWin->borderIsPixel == FALSE)
|
|
exaFinishAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_SRC);
|
|
}
|
|
|
|
static Bool
|
|
exaChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
|
|
{
|
|
Bool ret;
|
|
|
|
exaPrepareAccessWindow(pWin);
|
|
ret = fbChangeWindowAttributes(pWin, mask);
|
|
exaFinishAccessWindow(pWin);
|
|
return ret;
|
|
}
|
|
|
|
static RegionPtr
|
|
exaBitmapToRegion(PixmapPtr pPix)
|
|
{
|
|
RegionPtr ret;
|
|
exaPrepareAccess(&pPix->drawable, EXA_PREPARE_SRC);
|
|
ret = fbPixmapToRegion(pPix);
|
|
exaFinishAccess(&pPix->drawable, EXA_PREPARE_SRC);
|
|
return ret;
|
|
}
|
|
|
|
static Bool
|
|
exaCreateScreenResources(ScreenPtr pScreen)
|
|
{
|
|
ExaScreenPriv(pScreen);
|
|
PixmapPtr pScreenPixmap;
|
|
Bool b;
|
|
|
|
pScreen->CreateScreenResources = pExaScr->SavedCreateScreenResources;
|
|
b = pScreen->CreateScreenResources(pScreen);
|
|
pScreen->CreateScreenResources = exaCreateScreenResources;
|
|
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
|
|
exaGlyphsFini(pScreen);
|
|
|
|
pScreen->CreateGC = pExaScr->SavedCreateGC;
|
|
pScreen->CloseScreen = pExaScr->SavedCloseScreen;
|
|
pScreen->GetImage = pExaScr->SavedGetImage;
|
|
pScreen->GetSpans = pExaScr->SavedGetSpans;
|
|
pScreen->CreatePixmap = pExaScr->SavedCreatePixmap;
|
|
pScreen->DestroyPixmap = pExaScr->SavedDestroyPixmap;
|
|
pScreen->CopyWindow = pExaScr->SavedCopyWindow;
|
|
pScreen->ChangeWindowAttributes = pExaScr->SavedChangeWindowAttributes;
|
|
pScreen->BitmapToRegion = pExaScr->SavedBitmapToRegion;
|
|
pScreen->CreateScreenResources = pExaScr->SavedCreateScreenResources;
|
|
#ifdef RENDER
|
|
if (ps) {
|
|
ps->Composite = pExaScr->SavedComposite;
|
|
ps->Glyphs = pExaScr->SavedGlyphs;
|
|
ps->Trapezoids = pExaScr->SavedTrapezoids;
|
|
ps->Triangles = pExaScr->SavedTriangles;
|
|
}
|
|
#endif
|
|
|
|
xfree (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 xfree().
|
|
*
|
|
* @return a newly allocated, zero-filled driver structure
|
|
*/
|
|
ExaDriverPtr
|
|
exaDriverAlloc(void)
|
|
{
|
|
return xcalloc(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;
|
|
#ifdef RENDER
|
|
PictureScreenPtr ps;
|
|
#endif
|
|
|
|
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) {
|
|
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;
|
|
}
|
|
|
|
#ifdef RENDER
|
|
ps = GetPictureScreenIfSet(pScreen);
|
|
#endif
|
|
|
|
pExaScr = xcalloc (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);
|
|
|
|
/*
|
|
* 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 = exaGetImage;
|
|
|
|
pExaScr->SavedGetSpans = pScreen->GetSpans;
|
|
pScreen->GetSpans = ExaCheckGetSpans;
|
|
|
|
pExaScr->SavedCopyWindow = pScreen->CopyWindow;
|
|
pScreen->CopyWindow = exaCopyWindow;
|
|
|
|
pExaScr->SavedChangeWindowAttributes = pScreen->ChangeWindowAttributes;
|
|
pScreen->ChangeWindowAttributes = exaChangeWindowAttributes;
|
|
|
|
pExaScr->SavedBitmapToRegion = pScreen->BitmapToRegion;
|
|
pScreen->BitmapToRegion = exaBitmapToRegion;
|
|
|
|
pExaScr->SavedCreateScreenResources = pScreen->CreateScreenResources;
|
|
pScreen->CreateScreenResources = exaCreateScreenResources;
|
|
|
|
#ifdef RENDER
|
|
if (ps) {
|
|
pExaScr->SavedComposite = ps->Composite;
|
|
ps->Composite = exaComposite;
|
|
|
|
pExaScr->SavedGlyphs = ps->Glyphs;
|
|
ps->Glyphs = exaGlyphs;
|
|
|
|
pExaScr->SavedTriangles = ps->Triangles;
|
|
ps->Triangles = exaTriangles;
|
|
|
|
pExaScr->SavedTrapezoids = ps->Trapezoids;
|
|
ps->Trapezoids = exaTrapezoids;
|
|
}
|
|
#endif
|
|
|
|
#ifdef MITSHM
|
|
/* Re-register with the MI funcs, which don't allow shared pixmaps.
|
|
* Shared pixmaps are almost always a performance loss for us, but this
|
|
* still allows for SHM PutImage.
|
|
*/
|
|
ShmRegisterFuncs(pScreen, &exaShmFuncs);
|
|
#endif
|
|
/*
|
|
* Hookup offscreen pixmaps
|
|
*/
|
|
if (pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)
|
|
{
|
|
if (!dixRequestPrivate(exaPixmapPrivateKey, sizeof(ExaPixmapPrivRec))) {
|
|
LogMessage(X_WARNING,
|
|
"EXA(%d): Failed to allocate pixmap private\n",
|
|
pScreen->myNum);
|
|
return FALSE;
|
|
}
|
|
pExaScr->SavedCreatePixmap = pScreen->CreatePixmap;
|
|
pScreen->CreatePixmap = exaCreatePixmap;
|
|
|
|
pExaScr->SavedDestroyPixmap = pScreen->DestroyPixmap;
|
|
pScreen->DestroyPixmap = exaDestroyPixmap;
|
|
|
|
pExaScr->SavedModifyPixmapHeader = pScreen->ModifyPixmapHeader;
|
|
pScreen->ModifyPixmapHeader = exaModifyPixmapHeader;
|
|
if (!pExaScr->info->CreatePixmap) {
|
|
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->CreatePixmap) {
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|