525d4172b2
Rather than perform an intermediate copy and expand the strip and the fan into a triangle list (thereby tripling the number of edges that the driver needs to process), allow the backend to hook directly into the appropriate Composite function. In order to extend the PictureScreen, without needlessly bumping the ABI, we move the existing copy implementations to mipict.c and assign those by default. To notify the ddx that the new entry points are available, we introduce PICTURE_SCREEN_VERSION. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
668 lines
17 KiB
C
668 lines
17 KiB
C
/*
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*
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* Copyright © 1999 Keith Packard
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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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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "scrnintstr.h"
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#include "gcstruct.h"
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#include "pixmapstr.h"
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#include "windowstr.h"
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#include "mi.h"
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#include "picturestr.h"
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#include "mipict.h"
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int
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miCreatePicture (PicturePtr pPicture)
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{
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return Success;
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}
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void
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miDestroyPicture (PicturePtr pPicture)
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{
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if (pPicture->freeCompClip)
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RegionDestroy(pPicture->pCompositeClip);
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}
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void
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miDestroyPictureClip (PicturePtr pPicture)
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{
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switch (pPicture->clientClipType) {
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case CT_NONE:
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return;
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case CT_PIXMAP:
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(*pPicture->pDrawable->pScreen->DestroyPixmap) ((PixmapPtr) (pPicture->clientClip));
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break;
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default:
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/*
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* we know we'll never have a list of rectangles, since ChangeClip
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* immediately turns them into a region
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*/
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RegionDestroy(pPicture->clientClip);
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break;
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}
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pPicture->clientClip = NULL;
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pPicture->clientClipType = CT_NONE;
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}
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int
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miChangePictureClip (PicturePtr pPicture,
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int type,
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pointer value,
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int n)
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{
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ScreenPtr pScreen = pPicture->pDrawable->pScreen;
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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pointer clientClip;
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int clientClipType;
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switch (type) {
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case CT_PIXMAP:
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/* convert the pixmap to a region */
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clientClip = (pointer) BitmapToRegion(pScreen, (PixmapPtr) value);
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if (!clientClip)
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return BadAlloc;
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clientClipType = CT_REGION;
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(*pScreen->DestroyPixmap) ((PixmapPtr) value);
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break;
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case CT_REGION:
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clientClip = value;
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clientClipType = CT_REGION;
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break;
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case CT_NONE:
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clientClip = 0;
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clientClipType = CT_NONE;
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break;
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default:
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clientClip = (pointer) RegionFromRects(n,
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(xRectangle *) value,
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type);
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if (!clientClip)
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return BadAlloc;
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clientClipType = CT_REGION;
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free(value);
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break;
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}
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(*ps->DestroyPictureClip) (pPicture);
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pPicture->clientClip = clientClip;
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pPicture->clientClipType = clientClipType;
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pPicture->stateChanges |= CPClipMask;
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return Success;
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}
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void
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miChangePicture (PicturePtr pPicture,
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Mask mask)
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{
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return;
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}
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void
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miValidatePicture (PicturePtr pPicture,
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Mask mask)
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{
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DrawablePtr pDrawable = pPicture->pDrawable;
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if ((mask & (CPClipXOrigin|CPClipYOrigin|CPClipMask|CPSubwindowMode)) ||
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(pDrawable->serialNumber != (pPicture->serialNumber & DRAWABLE_SERIAL_BITS)))
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{
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if (pDrawable->type == DRAWABLE_WINDOW)
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{
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WindowPtr pWin = (WindowPtr) pDrawable;
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RegionPtr pregWin;
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Bool freeTmpClip, freeCompClip;
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if (pPicture->subWindowMode == IncludeInferiors)
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{
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pregWin = NotClippedByChildren(pWin);
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freeTmpClip = TRUE;
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}
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else
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{
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pregWin = &pWin->clipList;
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freeTmpClip = FALSE;
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}
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freeCompClip = pPicture->freeCompClip;
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/*
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* if there is no client clip, we can get by with just keeping the
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* pointer we got, and remembering whether or not should destroy
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* (or maybe re-use) it later. this way, we avoid unnecessary
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* copying of regions. (this wins especially if many clients clip
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* by children and have no client clip.)
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*/
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if (pPicture->clientClipType == CT_NONE)
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{
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if (freeCompClip)
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RegionDestroy(pPicture->pCompositeClip);
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pPicture->pCompositeClip = pregWin;
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pPicture->freeCompClip = freeTmpClip;
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}
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else
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{
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/*
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* we need one 'real' region to put into the composite clip. if
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* pregWin the current composite clip are real, we can get rid of
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* one. if pregWin is real and the current composite clip isn't,
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* use pregWin for the composite clip. if the current composite
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* clip is real and pregWin isn't, use the current composite
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* clip. if neither is real, create a new region.
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*/
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RegionTranslate(pPicture->clientClip,
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pDrawable->x + pPicture->clipOrigin.x,
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pDrawable->y + pPicture->clipOrigin.y);
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if (freeCompClip)
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{
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RegionIntersect(pPicture->pCompositeClip,
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pregWin, pPicture->clientClip);
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if (freeTmpClip)
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RegionDestroy(pregWin);
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}
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else if (freeTmpClip)
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{
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RegionIntersect(pregWin, pregWin, pPicture->clientClip);
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pPicture->pCompositeClip = pregWin;
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}
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else
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{
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pPicture->pCompositeClip = RegionCreate(NullBox, 0);
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RegionIntersect(pPicture->pCompositeClip,
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pregWin, pPicture->clientClip);
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}
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pPicture->freeCompClip = TRUE;
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RegionTranslate(pPicture->clientClip,
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-(pDrawable->x + pPicture->clipOrigin.x),
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-(pDrawable->y + pPicture->clipOrigin.y));
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}
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} /* end of composite clip for a window */
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else
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{
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BoxRec pixbounds;
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/* XXX should we translate by drawable.x/y here ? */
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/* If you want pixmaps in offscreen memory, yes */
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pixbounds.x1 = pDrawable->x;
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pixbounds.y1 = pDrawable->y;
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pixbounds.x2 = pDrawable->x + pDrawable->width;
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pixbounds.y2 = pDrawable->y + pDrawable->height;
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if (pPicture->freeCompClip)
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{
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RegionReset(pPicture->pCompositeClip, &pixbounds);
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}
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else
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{
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pPicture->freeCompClip = TRUE;
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pPicture->pCompositeClip = RegionCreate(&pixbounds, 1);
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}
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if (pPicture->clientClipType == CT_REGION)
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{
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if(pDrawable->x || pDrawable->y) {
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RegionTranslate(pPicture->clientClip,
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pDrawable->x + pPicture->clipOrigin.x,
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pDrawable->y + pPicture->clipOrigin.y);
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RegionIntersect(pPicture->pCompositeClip,
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pPicture->pCompositeClip, pPicture->clientClip);
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RegionTranslate(pPicture->clientClip,
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-(pDrawable->x + pPicture->clipOrigin.x),
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-(pDrawable->y + pPicture->clipOrigin.y));
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} else {
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RegionTranslate(pPicture->pCompositeClip,
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-pPicture->clipOrigin.x, -pPicture->clipOrigin.y);
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RegionIntersect(pPicture->pCompositeClip,
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pPicture->pCompositeClip, pPicture->clientClip);
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RegionTranslate(pPicture->pCompositeClip,
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pPicture->clipOrigin.x, pPicture->clipOrigin.y);
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}
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}
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} /* end of composite clip for pixmap */
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}
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}
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int
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miChangePictureTransform (PicturePtr pPicture,
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PictTransform *transform)
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{
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return Success;
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}
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int
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miChangePictureFilter (PicturePtr pPicture,
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int filter,
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xFixed *params,
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int nparams)
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{
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return Success;
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}
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#define BOUND(v) (INT16) ((v) < MINSHORT ? MINSHORT : (v) > MAXSHORT ? MAXSHORT : (v))
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static inline pixman_bool_t
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miClipPictureReg (pixman_region16_t * pRegion,
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pixman_region16_t * pClip,
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int dx,
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int dy)
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{
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if (pixman_region_n_rects(pRegion) == 1 &&
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pixman_region_n_rects(pClip) == 1)
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{
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pixman_box16_t * pRbox = pixman_region_rectangles(pRegion, NULL);
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pixman_box16_t * pCbox = pixman_region_rectangles(pClip, NULL);
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int v;
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if (pRbox->x1 < (v = pCbox->x1 + dx))
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pRbox->x1 = BOUND(v);
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if (pRbox->x2 > (v = pCbox->x2 + dx))
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pRbox->x2 = BOUND(v);
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if (pRbox->y1 < (v = pCbox->y1 + dy))
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pRbox->y1 = BOUND(v);
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if (pRbox->y2 > (v = pCbox->y2 + dy))
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pRbox->y2 = BOUND(v);
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if (pRbox->x1 >= pRbox->x2 ||
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pRbox->y1 >= pRbox->y2)
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{
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pixman_region_init (pRegion);
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}
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}
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else if (!pixman_region_not_empty (pClip))
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return FALSE;
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else
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{
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if (dx || dy)
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pixman_region_translate (pRegion, -dx, -dy);
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if (!pixman_region_intersect (pRegion, pRegion, pClip))
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return FALSE;
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if (dx || dy)
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pixman_region_translate(pRegion, dx, dy);
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}
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return pixman_region_not_empty(pRegion);
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}
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static inline Bool
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miClipPictureSrc (RegionPtr pRegion,
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PicturePtr pPicture,
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int dx,
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int dy)
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{
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if (pPicture->clientClipType != CT_NONE)
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{
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Bool result;
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pixman_region_translate ( pPicture->clientClip,
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pPicture->clipOrigin.x + dx,
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pPicture->clipOrigin.y + dy);
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result = RegionIntersect(pRegion, pRegion, pPicture->clientClip);
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pixman_region_translate ( pPicture->clientClip,
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- (pPicture->clipOrigin.x + dx),
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- (pPicture->clipOrigin.y + dy));
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if (!result)
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return FALSE;
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}
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return TRUE;
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}
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static void
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SourceValidateOnePicture (PicturePtr pPicture)
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{
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DrawablePtr pDrawable = pPicture->pDrawable;
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ScreenPtr pScreen;
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if (!pDrawable)
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return;
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pScreen = pDrawable->pScreen;
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if (pScreen->SourceValidate)
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{
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pScreen->SourceValidate (
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pDrawable, 0, 0, pDrawable->width, pDrawable->height, pPicture->subWindowMode);
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}
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}
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void
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miCompositeSourceValidate (PicturePtr pPicture)
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{
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SourceValidateOnePicture (pPicture);
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if (pPicture->alphaMap)
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SourceValidateOnePicture (pPicture->alphaMap);
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}
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/*
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* returns FALSE if the final region is empty. Indistinguishable from
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* an allocation failure, but rendering ignores those anyways.
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*/
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Bool
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miComputeCompositeRegion (RegionPtr pRegion,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst,
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CARD16 width,
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CARD16 height)
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{
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int v;
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pRegion->extents.x1 = xDst;
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v = xDst + width;
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pRegion->extents.x2 = BOUND(v);
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pRegion->extents.y1 = yDst;
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v = yDst + height;
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pRegion->extents.y2 = BOUND(v);
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pRegion->data = 0;
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/* Check for empty operation */
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if (pRegion->extents.x1 >= pRegion->extents.x2 ||
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pRegion->extents.y1 >= pRegion->extents.y2)
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{
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pixman_region_init (pRegion);
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return FALSE;
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}
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/* clip against dst */
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if (!miClipPictureReg (pRegion, pDst->pCompositeClip, 0, 0))
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{
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pixman_region_fini (pRegion);
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return FALSE;
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}
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if (pDst->alphaMap)
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{
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if (!miClipPictureReg (pRegion, pDst->alphaMap->pCompositeClip,
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-pDst->alphaOrigin.x,
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-pDst->alphaOrigin.y))
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{
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pixman_region_fini (pRegion);
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return FALSE;
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}
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}
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/* clip against src */
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if (!miClipPictureSrc (pRegion, pSrc, xDst - xSrc, yDst - ySrc))
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{
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pixman_region_fini (pRegion);
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return FALSE;
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}
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if (pSrc->alphaMap)
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{
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if (!miClipPictureSrc (pRegion, pSrc->alphaMap,
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xDst - (xSrc - pSrc->alphaOrigin.x),
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yDst - (ySrc - pSrc->alphaOrigin.y)))
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{
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pixman_region_fini (pRegion);
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return FALSE;
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}
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}
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/* clip against mask */
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if (pMask)
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{
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if (!miClipPictureSrc (pRegion, pMask, xDst - xMask, yDst - yMask))
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{
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pixman_region_fini (pRegion);
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return FALSE;
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}
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if (pMask->alphaMap)
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{
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if (!miClipPictureSrc (pRegion, pMask->alphaMap,
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xDst - (xMask - pMask->alphaOrigin.x),
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yDst - (yMask - pMask->alphaOrigin.y)))
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{
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pixman_region_fini (pRegion);
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return FALSE;
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}
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}
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}
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miCompositeSourceValidate (pSrc);
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if (pMask)
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miCompositeSourceValidate (pMask);
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return TRUE;
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}
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void
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miRenderColorToPixel (PictFormatPtr format,
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xRenderColor *color,
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CARD32 *pixel)
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{
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CARD32 r, g, b, a;
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miIndexedPtr pIndexed;
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switch (format->type) {
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case PictTypeDirect:
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r = color->red >> (16 - Ones (format->direct.redMask));
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g = color->green >> (16 - Ones (format->direct.greenMask));
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b = color->blue >> (16 - Ones (format->direct.blueMask));
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a = color->alpha >> (16 - Ones (format->direct.alphaMask));
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r = r << format->direct.red;
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g = g << format->direct.green;
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b = b << format->direct.blue;
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a = a << format->direct.alpha;
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*pixel = r|g|b|a;
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break;
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case PictTypeIndexed:
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pIndexed = (miIndexedPtr) (format->index.devPrivate);
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if (pIndexed->color)
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{
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r = color->red >> 11;
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g = color->green >> 11;
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b = color->blue >> 11;
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*pixel = miIndexToEnt15 (pIndexed, (r << 10) | (g << 5) | b);
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}
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else
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{
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r = color->red >> 8;
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g = color->green >> 8;
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b = color->blue >> 8;
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*pixel = miIndexToEntY24 (pIndexed, (r << 16) | (g << 8) | b);
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}
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break;
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}
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}
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static CARD16
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miFillColor (CARD32 pixel, int bits)
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{
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while (bits < 16)
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{
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pixel |= pixel << bits;
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bits <<= 1;
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}
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return (CARD16) pixel;
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}
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Bool
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miIsSolidAlpha (PicturePtr pSrc)
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{
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ScreenPtr pScreen;
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char line[1];
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if (!pSrc->pDrawable)
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return FALSE;
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pScreen = pSrc->pDrawable->pScreen;
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/* Alpha-only */
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if (PICT_FORMAT_TYPE (pSrc->format) != PICT_TYPE_A)
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return FALSE;
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/* repeat */
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if (!pSrc->repeat)
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return FALSE;
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/* 1x1 */
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if (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1)
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return FALSE;
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line[0] = 1;
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(*pScreen->GetImage) (pSrc->pDrawable, 0, 0, 1, 1, ZPixmap, ~0L, line);
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switch (pSrc->pDrawable->bitsPerPixel) {
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case 1:
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return (CARD8) line[0] == 1 || (CARD8) line[0] == 0x80;
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case 4:
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return (CARD8) line[0] == 0xf || (CARD8) line[0] == 0xf0;
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case 8:
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return (CARD8) line[0] == 0xff;
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default:
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return FALSE;
|
|
}
|
|
}
|
|
|
|
void
|
|
miRenderPixelToColor (PictFormatPtr format,
|
|
CARD32 pixel,
|
|
xRenderColor *color)
|
|
{
|
|
CARD32 r, g, b, a;
|
|
miIndexedPtr pIndexed;
|
|
|
|
switch (format->type) {
|
|
case PictTypeDirect:
|
|
r = (pixel >> format->direct.red) & format->direct.redMask;
|
|
g = (pixel >> format->direct.green) & format->direct.greenMask;
|
|
b = (pixel >> format->direct.blue) & format->direct.blueMask;
|
|
a = (pixel >> format->direct.alpha) & format->direct.alphaMask;
|
|
color->red = miFillColor (r, Ones (format->direct.redMask));
|
|
color->green = miFillColor (g, Ones (format->direct.greenMask));
|
|
color->blue = miFillColor (b, Ones (format->direct.blueMask));
|
|
color->alpha = miFillColor (a, Ones (format->direct.alphaMask));
|
|
break;
|
|
case PictTypeIndexed:
|
|
pIndexed = (miIndexedPtr) (format->index.devPrivate);
|
|
pixel = pIndexed->rgba[pixel & (MI_MAX_INDEXED-1)];
|
|
r = (pixel >> 16) & 0xff;
|
|
g = (pixel >> 8) & 0xff;
|
|
b = (pixel ) & 0xff;
|
|
color->red = miFillColor (r, 8);
|
|
color->green = miFillColor (g, 8);
|
|
color->blue = miFillColor (b, 8);
|
|
color->alpha = 0xffff;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
miTriStrip (CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pDst,
|
|
PictFormatPtr maskFormat,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
int npoints,
|
|
xPointFixed *points)
|
|
{
|
|
xTriangle *tris, *tri;
|
|
int ntri;
|
|
|
|
ntri = npoints - 2;
|
|
tris = malloc(ntri * sizeof (xTriangle));
|
|
if (!tris)
|
|
return;
|
|
|
|
for (tri = tris; npoints >= 3; npoints--, points++, tri++)
|
|
{
|
|
tri->p1 = points[0];
|
|
tri->p2 = points[1];
|
|
tri->p3 = points[2];
|
|
}
|
|
CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
|
|
free(tris);
|
|
}
|
|
|
|
void
|
|
miTriFan (CARD8 op,
|
|
PicturePtr pSrc,
|
|
PicturePtr pDst,
|
|
PictFormatPtr maskFormat,
|
|
INT16 xSrc,
|
|
INT16 ySrc,
|
|
int npoints,
|
|
xPointFixed *points)
|
|
{
|
|
xTriangle *tris, *tri;
|
|
xPointFixed *first;
|
|
int ntri;
|
|
|
|
ntri = npoints - 2;
|
|
tris = malloc(ntri * sizeof (xTriangle));
|
|
if (!tris)
|
|
return;
|
|
|
|
first = points++;
|
|
for (tri = tris; npoints >= 3; npoints--, points++, tri++)
|
|
{
|
|
tri->p1 = *first;
|
|
tri->p2 = points[0];
|
|
tri->p3 = points[1];
|
|
}
|
|
CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
|
|
free(tris);
|
|
}
|
|
|
|
Bool
|
|
miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
|
|
{
|
|
PictureScreenPtr ps;
|
|
|
|
if (!PictureInit (pScreen, formats, nformats))
|
|
return FALSE;
|
|
ps = GetPictureScreen(pScreen);
|
|
ps->CreatePicture = miCreatePicture;
|
|
ps->DestroyPicture = miDestroyPicture;
|
|
ps->ChangePictureClip = miChangePictureClip;
|
|
ps->DestroyPictureClip = miDestroyPictureClip;
|
|
ps->ChangePicture = miChangePicture;
|
|
ps->ValidatePicture = miValidatePicture;
|
|
ps->InitIndexed = miInitIndexed;
|
|
ps->CloseIndexed = miCloseIndexed;
|
|
ps->UpdateIndexed = miUpdateIndexed;
|
|
ps->ChangePictureTransform = miChangePictureTransform;
|
|
ps->ChangePictureFilter = miChangePictureFilter;
|
|
ps->RealizeGlyph = miRealizeGlyph;
|
|
ps->UnrealizeGlyph = miUnrealizeGlyph;
|
|
|
|
/* MI rendering routines */
|
|
ps->Composite = 0; /* requires DDX support */
|
|
ps->Glyphs = miGlyphs;
|
|
ps->CompositeRects = miCompositeRects;
|
|
ps->Trapezoids = 0;
|
|
ps->Triangles = 0;
|
|
|
|
ps->RasterizeTrapezoid = 0; /* requires DDX support */
|
|
ps->AddTraps = 0; /* requires DDX support */
|
|
ps->AddTriangles = 0; /* requires DDX support */
|
|
|
|
ps->TriStrip = miTriStrip; /* converts call to CompositeTriangles */
|
|
ps->TriFan = miTriFan;
|
|
|
|
return TRUE;
|
|
}
|