49f77fff14
Save in a few special cases, _X_EXPORT should not be used in C source files. Instead, it should be used in headers, and the proper C source include that header. Some special cases are symbols that need to be shared between modules, but not expected to be used by external drivers, and symbols that are accessible via LoaderSymbol/dlopen. This patch also adds conditionally some new sdk header files, depending on extensions enabled. These files were added to match pattern for other extensions/modules, that is, have the headers "deciding" symbol visibility in the sdk. These headers are: o Xext/panoramiXsrv.h, Xext/panoramiX.h o fbpict.h (unconditionally) o vidmodeproc.h o mioverlay.h (unconditionally, used only by xaa) o xfixes.h (unconditionally, symbols required by dri2) LoaderSymbol and similar functions now don't have different prototypes, in loaderProcs.h and xf86Module.h, so that both headers can be included, without the need of defining IN_LOADER. xf86NewInputDevice() device prototype readded to xf86Xinput.h, but not exported (and with a comment about it).
190 lines
5.2 KiB
C
190 lines
5.2 KiB
C
/*
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*
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* Copyright © 2002 Keith Packard, member of 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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#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 "servermd.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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PicturePtr
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miCreateAlphaPicture (ScreenPtr pScreen,
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PicturePtr pDst,
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PictFormatPtr pPictFormat,
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CARD16 width,
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CARD16 height)
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{
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PixmapPtr pPixmap;
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PicturePtr pPicture;
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GCPtr pGC;
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int error;
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xRectangle rect;
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if (width > 32767 || height > 32767)
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return 0;
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if (!pPictFormat)
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{
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if (pDst->polyEdge == PolyEdgeSharp)
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pPictFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
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else
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pPictFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
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if (!pPictFormat)
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return 0;
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}
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pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height,
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pPictFormat->depth, 0);
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if (!pPixmap)
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return 0;
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pGC = GetScratchGC (pPixmap->drawable.depth, pScreen);
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if (!pGC)
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{
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(*pScreen->DestroyPixmap) (pPixmap);
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return 0;
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}
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ValidateGC (&pPixmap->drawable, pGC);
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rect.x = 0;
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rect.y = 0;
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rect.width = width;
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rect.height = height;
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(*pGC->ops->PolyFillRect)(&pPixmap->drawable, pGC, 1, &rect);
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FreeScratchGC (pGC);
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pPicture = CreatePicture (0, &pPixmap->drawable, pPictFormat,
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0, 0, serverClient, &error);
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(*pScreen->DestroyPixmap) (pPixmap);
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return pPicture;
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}
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static xFixed
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miLineFixedX (xLineFixed *l, xFixed y, Bool ceil)
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{
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xFixed dx = l->p2.x - l->p1.x;
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xFixed_32_32 ex = (xFixed_32_32) (y - l->p1.y) * dx;
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xFixed dy = l->p2.y - l->p1.y;
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if (ceil)
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ex += (dy - 1);
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return l->p1.x + (xFixed) (ex / dy);
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}
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void
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miTrapezoidBounds (int ntrap, xTrapezoid *traps, BoxPtr box)
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{
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box->y1 = MAXSHORT;
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box->y2 = MINSHORT;
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box->x1 = MAXSHORT;
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box->x2 = MINSHORT;
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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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if (y1 < box->y1)
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box->y1 = y1;
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y2 = xFixedToInt (xFixedCeil (traps->bottom));
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if (y2 > box->y2)
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box->y2 = y2;
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x1 = xFixedToInt (min (miLineFixedX (&traps->left, traps->top, FALSE),
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miLineFixedX (&traps->left, traps->bottom, FALSE)));
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if (x1 < box->x1)
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box->x1 = x1;
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x2 = xFixedToInt (xFixedCeil (max (miLineFixedX (&traps->right, traps->top, TRUE),
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miLineFixedX (&traps->right, traps->bottom, TRUE))));
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if (x2 > box->x2)
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box->x2 = x2;
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}
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}
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void
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miTrapezoids (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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PictureScreenPtr ps = GetPictureScreen(pScreen);
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/*
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* Check for solid alpha add
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*/
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if (op == PictOpAdd && miIsSolidAlpha (pSrc))
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{
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for (; ntrap; ntrap--, traps++)
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(*ps->RasterizeTrapezoid) (pDst, traps, 0, 0);
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}
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else if (maskFormat)
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{
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PicturePtr pPicture;
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BoxRec bounds;
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INT16 xDst, yDst;
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INT16 xRel, yRel;
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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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miTrapezoidBounds (ntrap, traps, &bounds);
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if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
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return;
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pPicture = miCreateAlphaPicture (pScreen, pDst, maskFormat,
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bounds.x2 - bounds.x1,
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bounds.y2 - bounds.y1);
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if (!pPicture)
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return;
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for (; ntrap; ntrap--, traps++)
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(*ps->RasterizeTrapezoid) (pPicture, traps,
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-bounds.x1, -bounds.y1);
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xRel = bounds.x1 + xSrc - xDst;
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yRel = bounds.y1 + ySrc - yDst;
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CompositePicture (op, pSrc, pPicture, pDst,
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xRel, yRel, 0, 0, bounds.x1, bounds.y1,
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bounds.x2 - bounds.x1,
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bounds.y2 - bounds.y1);
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FreePicture (pPicture, 0);
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}
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else
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{
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if (pDst->polyEdge == PolyEdgeSharp)
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maskFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
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else
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maskFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
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for (; ntrap; ntrap--, traps++)
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miTrapezoids (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, traps);
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}
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}
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