482 lines
12 KiB
C
482 lines
12 KiB
C
/*
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* Copyright © 2005 Novell, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Novell, Inc. not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior permission.
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* Novell, Inc. makes no representations about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*
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* NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
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* NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: David Reveman <davidr@novell.com>
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*/
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#include "xgl.h"
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#include "gcstruct.h"
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#include "damage.h"
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#ifdef RENDER
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#define XGL_TRAP_FALLBACK_PROLOGUE(pPicture, func) \
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xglSyncDamageBoxBits (pPicture->pDrawable); \
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XGL_PICTURE_SCREEN_UNWRAP (func)
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#define XGL_TRAP_FALLBACK_EPILOGUE(pPicture, func, xglfunc) \
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XGL_PICTURE_SCREEN_WRAP (func, xglfunc); \
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xglAddCurrentSurfaceDamage (pPicture->pDrawable)
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/* just a guess */
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#define SMOOTH_TRAPS_ESTIMATE_RECTS(nTrap) (30 * nTrap)
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#define LINE_FIXED_X(l, _y, v) \
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dx = (l)->p2.x - (l)->p1.x; \
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ex = (xFixed_32_32) ((_y) - (l)->p1.y) * dx; \
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dy = (l)->p2.y - (l)->p1.y; \
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(v) = (l)->p1.x + (xFixed) (ex / dy)
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#define LINE_FIXED_X_CEIL(l, _y, v) \
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dx = (l)->p2.x - (l)->p1.x; \
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ex = (xFixed_32_32) ((_y) - (l)->p1.y) * dx; \
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dy = (l)->p2.y - (l)->p1.y; \
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(v) = (l)->p1.x + (xFixed) ((ex + (dy - 1)) / dy)
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static Bool
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xglTrapezoidExtents (PicturePtr pDst,
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int ntrap,
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xTrapezoid *traps,
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BoxPtr extents)
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{
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Bool x_overlap, overlap = FALSE;
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xFixed dx, dy, top, bottom;
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xFixed_32_32 ex;
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if (!ntrap)
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{
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extents->x1 = MAXSHORT;
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extents->x2 = MINSHORT;
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extents->y1 = MAXSHORT;
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extents->y2 = MINSHORT;
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return FALSE;
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}
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extents->y1 = xFixedToInt (traps->top);
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extents->y2 = xFixedToInt (xFixedCeil (traps->bottom));
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LINE_FIXED_X (&traps->left, traps->top, top);
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LINE_FIXED_X (&traps->left, traps->bottom, bottom);
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extents->x1 = xFixedToInt (MIN (top, bottom));
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LINE_FIXED_X_CEIL (&traps->right, traps->top, top);
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LINE_FIXED_X_CEIL (&traps->right, traps->bottom, bottom);
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extents->x2 = xFixedToInt (xFixedCeil (MAX (top, bottom)));
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ntrap--;
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traps++;
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for (; ntrap; ntrap--, traps++)
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{
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INT16 x1, y1, x2, y2;
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if (!xTrapezoidValid (traps))
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continue;
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y1 = xFixedToInt (traps->top);
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y2 = xFixedToInt (xFixedCeil (traps->bottom));
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LINE_FIXED_X (&traps->left, traps->top, top);
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LINE_FIXED_X (&traps->left, traps->bottom, bottom);
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x1 = xFixedToInt (MIN (top, bottom));
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LINE_FIXED_X_CEIL (&traps->right, traps->top, top);
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LINE_FIXED_X_CEIL (&traps->right, traps->bottom, bottom);
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x2 = xFixedToInt (xFixedCeil (MAX (top, bottom)));
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x_overlap = FALSE;
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if (x1 >= extents->x2)
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extents->x2 = x2;
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else if (x2 <= extents->x1)
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extents->x1 = x1;
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else
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{
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x_overlap = TRUE;
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if (x1 < extents->x1)
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extents->x1 = x1;
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if (x2 > extents->x2)
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extents->x2 = x2;
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}
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if (y1 >= extents->y2)
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extents->y2 = y2;
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else if (y2 <= extents->y1)
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extents->y1 = y1;
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else
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{
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if (y1 < extents->y1)
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extents->y1 = y1;
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if (y2 > extents->y2)
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extents->y2 = y2;
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if (x_overlap)
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overlap = TRUE;
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}
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}
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xglPictureClipExtents (pDst, extents);
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return overlap;
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}
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void
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xglTrapezoids (CARD8 op,
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PicturePtr pSrc,
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PicturePtr pDst,
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PictFormatPtr maskFormat,
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INT16 xSrc,
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INT16 ySrc,
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int nTrap,
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xTrapezoid *traps)
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{
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ScreenPtr pScreen = pDst->pDrawable->pScreen;
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PicturePtr pMask = NULL, pSrcPicture, pDstPicture;
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PicturePtr pMaskPicture = NULL;
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xglGeometryPtr pGeometry = NULL;
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unsigned int polyEdge = pDst->polyEdge;
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INT16 xDst, yDst;
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INT16 xOff, yOff;
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BoxRec extents;
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Bool overlap;
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Bool target;
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XGL_SCREEN_PRIV (pScreen);
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xDst = traps[0].left.p1.x >> 16;
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yDst = traps[0].left.p1.y >> 16;
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overlap = xglTrapezoidExtents (pDst, nTrap, traps, &extents);
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if (extents.y1 >= extents.y2 || extents.x1 >= extents.x2)
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return;
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target = xglPrepareTarget (pDst->pDrawable);
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if (nTrap > 1 && op != PictOpAdd && maskFormat &&
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(!target || overlap || op != PictOpOver))
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{
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PixmapPtr pPixmap;
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GCPtr pGC;
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xRectangle rect;
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int error;
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int area;
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if (!pScreenPriv->pSolidAlpha)
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{
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xglCreateSolidAlphaPicture (pScreen);
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if (!pScreenPriv->pSolidAlpha)
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return;
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}
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rect.x = 0;
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rect.y = 0;
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rect.width = extents.x2 - extents.x1;
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rect.height = extents.y2 - extents.y1;
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pPixmap = (*pScreen->CreatePixmap) (pScreen,
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rect.width, rect.height,
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maskFormat->depth,
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CREATE_PIXMAP_USAGE_SCRATCH);
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if (!pPixmap)
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return;
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pMask = CreatePicture (0, &pPixmap->drawable, maskFormat,
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0, 0, serverClient, &error);
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if (!pMask)
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{
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(*pScreen->DestroyPixmap) (pPixmap);
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return;
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}
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if (!target)
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{
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/* make sure we don't do accelerated drawing to mask */
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xglSetPixmapVisual (pPixmap, NULL);
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}
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area = rect.width * rect.height;
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if ((SMOOTH_TRAPS_ESTIMATE_RECTS (nTrap) * 4) > area)
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XGL_GET_PIXMAP_PRIV (pPixmap)->target = xglPixmapTargetNo;
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ValidatePicture (pMask);
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pGC = GetScratchGC (pPixmap->drawable.depth, pScreen);
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ValidateGC (&pPixmap->drawable, pGC);
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(*pGC->ops->PolyFillRect) (&pPixmap->drawable, pGC, 1, &rect);
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FreeScratchGC (pGC);
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(*pScreen->DestroyPixmap) (pPixmap);
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target = xglPrepareTarget (pMask->pDrawable);
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xOff = -extents.x1;
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yOff = -extents.y1;
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pSrcPicture = pScreenPriv->pSolidAlpha;
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pDstPicture = pMask;
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}
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else
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{
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if (maskFormat)
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{
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if (maskFormat->depth == 1)
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polyEdge = PolyEdgeSharp;
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else
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polyEdge = PolyEdgeSmooth;
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}
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xOff = 0;
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yOff = 0;
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pSrcPicture = pSrc;
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pDstPicture = pDst;
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}
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if (target)
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{
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if (maskFormat || polyEdge == PolyEdgeSmooth)
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{
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glitz_vertex_format_t *format;
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glitz_surface_t *mask;
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xTrapezoid *pTrap = traps;
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int nAddedTrap, n = nTrap;
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int offset = 0;
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int size = SMOOTH_TRAPS_ESTIMATE_RECTS (n);
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pMaskPicture = pScreenPriv->trapInfo.pMask;
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format = &pScreenPriv->trapInfo.format.vertex;
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mask = pMaskPicture->pSourcePict->source.devPrivate.ptr;
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size *= format->bytes_per_vertex;
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pGeometry = xglGetScratchGeometryWithSize (pScreen, size);
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while (n)
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{
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if (pGeometry->size < size)
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GEOMETRY_RESIZE (pScreen, pGeometry, size);
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if (!pGeometry->buffer)
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{
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if (pMask)
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FreePicture (pMask, 0);
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return;
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}
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offset +=
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glitz_add_trapezoids (pGeometry->buffer,
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offset, size - offset, format->type,
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mask, (glitz_trapezoid_t *) pTrap, n,
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&nAddedTrap);
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n -= nAddedTrap;
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pTrap += nAddedTrap;
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size *= 2;
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}
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pGeometry->f = pScreenPriv->trapInfo.format;
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pGeometry->count = offset / format->bytes_per_vertex;
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}
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else
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{
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pGeometry =
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xglGetScratchVertexGeometryWithType (pScreen,
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GEOMETRY_DATA_TYPE_FLOAT,
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4 * nTrap);
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if (!pGeometry->buffer)
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{
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if (pMask)
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FreePicture (pMask, 0);
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return;
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}
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GEOMETRY_ADD_TRAPEZOID (pScreen, pGeometry, traps, nTrap);
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}
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GEOMETRY_TRANSLATE (pGeometry,
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pDstPicture->pDrawable->x + xOff,
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pDstPicture->pDrawable->y + yOff);
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}
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if (pGeometry &&
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xglCompositeGeneral (pMask ? PictOpAdd : op,
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pSrcPicture,
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pMaskPicture,
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pDstPicture,
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pGeometry,
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extents.x1 + xOff + xSrc - xDst,
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extents.y1 + yOff + ySrc - yDst,
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0, 0,
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pDstPicture->pDrawable->x + extents.x1 + xOff,
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pDstPicture->pDrawable->y + extents.y1 + yOff,
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extents.x2 - extents.x1,
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extents.y2 - extents.y1))
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{
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/* no intermediate mask? we need to register damage from here as
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CompositePicture will never be called. */
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if (!pMask)
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{
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RegionRec region;
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REGION_INIT (pScreen, ®ion, &extents, 1);
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REGION_TRANSLATE (pScreen, ®ion,
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pDst->pDrawable->x, pDst->pDrawable->y);
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DamageDamageRegion (pDst->pDrawable, ®ion);
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REGION_UNINIT (pScreen, ®ion);
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}
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xglAddCurrentBitDamage (pDstPicture->pDrawable);
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}
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else
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{
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XGL_DRAWABLE_PIXMAP_PRIV (pDstPicture->pDrawable);
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pPixmapPriv->damageBox.x1 = extents.x1 + xOff;
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pPixmapPriv->damageBox.y1 = extents.y1 + yOff;
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pPixmapPriv->damageBox.x2 = extents.x2 + xOff;
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pPixmapPriv->damageBox.y2 = extents.y2 + yOff;
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xglSyncDamageBoxBits (pDstPicture->pDrawable);
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if (pMask || (polyEdge == PolyEdgeSmooth &&
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op == PictOpAdd && miIsSolidAlpha (pSrc)))
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{
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PictureScreenPtr ps = GetPictureScreen (pScreen);
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for (; nTrap; nTrap--, traps++)
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(*ps->RasterizeTrapezoid) (pDstPicture, traps, xOff, yOff);
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xglAddCurrentSurfaceDamage (pDstPicture->pDrawable);
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}
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else
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miTrapezoids (op, pSrc, pDstPicture, maskFormat,
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xSrc, ySrc, nTrap, traps);
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}
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if (pMask)
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{
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CompositePicture (op, pSrc, pMask, pDst,
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extents.x1 + xSrc - xDst,
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extents.y1 + ySrc - yDst,
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0, 0,
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extents.x1, extents.y1,
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extents.x2 - extents.x1,
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extents.y2 - extents.y1);
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FreePicture (pMask, 0);
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}
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}
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void
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xglAddTraps (PicturePtr pDst,
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INT16 xOff,
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INT16 yOff,
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int nTrap,
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xTrap *traps)
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{
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PictureScreenPtr pPictureScreen;
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ScreenPtr pScreen = pDst->pDrawable->pScreen;
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XGL_SCREEN_PRIV (pScreen);
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XGL_DRAWABLE_PIXMAP_PRIV (pDst->pDrawable);
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if (!pScreenPriv->pSolidAlpha)
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{
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xglCreateSolidAlphaPicture (pScreen);
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if (!pScreenPriv->pSolidAlpha)
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return;
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}
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pPixmapPriv->damageBox.x1 = 0;
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pPixmapPriv->damageBox.y1 = 0;
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pPixmapPriv->damageBox.x2 = pDst->pDrawable->width;
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pPixmapPriv->damageBox.y2 = pDst->pDrawable->height;
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if (xglPrepareTarget (pDst->pDrawable))
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{
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PicturePtr pMask;
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glitz_vertex_format_t *format;
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glitz_surface_t *mask;
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xglGeometryPtr pGeometry;
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xTrap *pTrap = traps;
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int nAddedTrap, n = nTrap;
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int offset = 0;
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int size = SMOOTH_TRAPS_ESTIMATE_RECTS (n);
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pMask = pScreenPriv->trapInfo.pMask;
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format = &pScreenPriv->trapInfo.format.vertex;
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mask = pMask->pSourcePict->source.devPrivate.ptr;
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size *= format->bytes_per_vertex;
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pGeometry = xglGetScratchGeometryWithSize (pScreen, size);
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while (n)
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{
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if (pGeometry->size < size)
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GEOMETRY_RESIZE (pScreen, pGeometry, size);
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if (!pGeometry->buffer)
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return;
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offset +=
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glitz_add_traps (pGeometry->buffer,
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offset, size - offset, format->type, mask,
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(glitz_trap_t *) pTrap, n,
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&nAddedTrap);
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n -= nAddedTrap;
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pTrap += nAddedTrap;
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size *= 2;
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}
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pGeometry->f = pScreenPriv->trapInfo.format;
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pGeometry->count = offset / format->bytes_per_vertex;
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GEOMETRY_TRANSLATE (pGeometry,
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pDst->pDrawable->x + xOff,
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pDst->pDrawable->y + yOff);
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if (xglCompositeGeneral (PictOpAdd,
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pScreenPriv->pSolidAlpha,
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pMask,
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pDst,
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pGeometry,
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0, 0,
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0, 0,
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pDst->pDrawable->x, pDst->pDrawable->y,
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pDst->pDrawable->width,
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pDst->pDrawable->height))
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{
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xglAddCurrentBitDamage (pDst->pDrawable);
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return;
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}
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}
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pPictureScreen = GetPictureScreen (pScreen);
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XGL_TRAP_FALLBACK_PROLOGUE (pDst, AddTraps);
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(*pPictureScreen->AddTraps) (pDst, xOff, yOff, nTrap, traps);
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XGL_TRAP_FALLBACK_EPILOGUE (pDst, AddTraps, xglAddTraps);
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}
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#endif
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