From 3562e78743202e43aec8727005182a2558117eca Mon Sep 17 00:00:00 2001 From: marha Date: Sun, 28 Jun 2009 22:07:26 +0000 Subject: Checked in the following released items: xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz --- xorg-server/render/filter.c | 323 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 323 insertions(+) create mode 100644 xorg-server/render/filter.c (limited to 'xorg-server/render/filter.c') diff --git a/xorg-server/render/filter.c b/xorg-server/render/filter.c new file mode 100644 index 000000000..aa3eb1a9e --- /dev/null +++ b/xorg-server/render/filter.c @@ -0,0 +1,323 @@ +/* + * Copyright © 2002 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include "misc.h" +#include "scrnintstr.h" +#include "os.h" +#include "regionstr.h" +#include "validate.h" +#include "windowstr.h" +#include "input.h" +#include "resource.h" +#include "colormapst.h" +#include "cursorstr.h" +#include "dixstruct.h" +#include "gcstruct.h" +#include "servermd.h" +#include "picturestr.h" + +static char **filterNames; +static int nfilterNames; + +/* + * standard but not required filters don't have constant indices + */ + +int +PictureGetFilterId (char *filter, int len, Bool makeit) +{ + int i; + char *name; + char **names; + + if (len < 0) + len = strlen (filter); + for (i = 0; i < nfilterNames; i++) + if (!CompareISOLatin1Lowered ((unsigned char *) filterNames[i], -1, (unsigned char *) filter, len)) + return i; + if (!makeit) + return -1; + name = xalloc (len + 1); + if (!name) + return -1; + memcpy (name, filter, len); + name[len] = '\0'; + if (filterNames) + names = xrealloc (filterNames, (nfilterNames + 1) * sizeof (char *)); + else + names = xalloc (sizeof (char *)); + if (!names) + { + xfree (name); + return -1; + } + filterNames = names; + i = nfilterNames++; + filterNames[i] = name; + return i; +} + +static Bool +PictureSetDefaultIds (void) +{ + /* careful here -- this list must match the #define values */ + + if (PictureGetFilterId (FilterNearest, -1, TRUE) != PictFilterNearest) + return FALSE; + if (PictureGetFilterId (FilterBilinear, -1, TRUE) != PictFilterBilinear) + return FALSE; + + if (PictureGetFilterId (FilterFast, -1, TRUE) != PictFilterFast) + return FALSE; + if (PictureGetFilterId (FilterGood, -1, TRUE) != PictFilterGood) + return FALSE; + if (PictureGetFilterId (FilterBest, -1, TRUE) != PictFilterBest) + return FALSE; + + if (PictureGetFilterId (FilterConvolution, -1, TRUE) != PictFilterConvolution) + return FALSE; + return TRUE; +} + +char * +PictureGetFilterName (int id) +{ + if (0 <= id && id < nfilterNames) + return filterNames[id]; + else + return 0; +} + +static void +PictureFreeFilterIds (void) +{ + int i; + + for (i = 0; i < nfilterNames; i++) + xfree (filterNames[i]); + xfree (filterNames); + nfilterNames = 0; + filterNames = 0; +} + +_X_EXPORT int +PictureAddFilter (ScreenPtr pScreen, + char *filter, + PictFilterValidateParamsProcPtr ValidateParams) +{ + PictureScreenPtr ps = GetPictureScreen(pScreen); + int id = PictureGetFilterId (filter, -1, TRUE); + int i; + PictFilterPtr filters; + + if (id < 0) + return -1; + /* + * It's an error to attempt to reregister a filter + */ + for (i = 0; i < ps->nfilters; i++) + if (ps->filters[i].id == id) + return -1; + if (ps->filters) + filters = xrealloc (ps->filters, (ps->nfilters + 1) * sizeof (PictFilterRec)); + else + filters = xalloc (sizeof (PictFilterRec)); + if (!filters) + return -1; + ps->filters = filters; + i = ps->nfilters++; + ps->filters[i].name = PictureGetFilterName (id); + ps->filters[i].id = id; + ps->filters[i].ValidateParams = ValidateParams; + return id; +} + +_X_EXPORT Bool +PictureSetFilterAlias (ScreenPtr pScreen, char *filter, char *alias) +{ + PictureScreenPtr ps = GetPictureScreen(pScreen); + int filter_id = PictureGetFilterId (filter, -1, FALSE); + int alias_id = PictureGetFilterId (alias, -1, TRUE); + int i; + + if (filter_id < 0 || alias_id < 0) + return FALSE; + for (i = 0; i < ps->nfilterAliases; i++) + if (ps->filterAliases[i].alias_id == alias_id) + break; + if (i == ps->nfilterAliases) + { + PictFilterAliasPtr aliases; + + if (ps->filterAliases) + aliases = xrealloc (ps->filterAliases, + (ps->nfilterAliases + 1) * + sizeof (PictFilterAliasRec)); + else + aliases = xalloc (sizeof (PictFilterAliasRec)); + if (!aliases) + return FALSE; + ps->filterAliases = aliases; + ps->filterAliases[i].alias = PictureGetFilterName (alias_id); + ps->filterAliases[i].alias_id = alias_id; + ps->nfilterAliases++; + } + ps->filterAliases[i].filter_id = filter_id; + return TRUE; +} + +PictFilterPtr +PictureFindFilter (ScreenPtr pScreen, char *name, int len) +{ + PictureScreenPtr ps = GetPictureScreen(pScreen); + int id = PictureGetFilterId (name, len, FALSE); + int i; + + if (id < 0) + return 0; + /* Check for an alias, allow them to recurse */ + for (i = 0; i < ps->nfilterAliases; i++) + if (ps->filterAliases[i].alias_id == id) + { + id = ps->filterAliases[i].filter_id; + i = 0; + } + /* find the filter */ + for (i = 0; i < ps->nfilters; i++) + if (ps->filters[i].id == id) + return &ps->filters[i]; + return 0; +} + +static Bool +convolutionFilterValidateParams (PicturePtr pPicture, + int filter, + xFixed *params, + int nparams) +{ + if (nparams < 3) + return FALSE; + + if (xFixedFrac (params[0]) || xFixedFrac (params[1])) + return FALSE; + + nparams -= 2; + if ((xFixedToInt (params[0]) * xFixedToInt (params[1])) > nparams) + return FALSE; + + return TRUE; +} + + +Bool +PictureSetDefaultFilters (ScreenPtr pScreen) +{ + if (!filterNames) + if (!PictureSetDefaultIds ()) + return FALSE; + if (PictureAddFilter (pScreen, FilterNearest, 0) < 0) + return FALSE; + if (PictureAddFilter (pScreen, FilterBilinear, 0) < 0) + return FALSE; + + if (!PictureSetFilterAlias (pScreen, FilterNearest, FilterFast)) + return FALSE; + if (!PictureSetFilterAlias (pScreen, FilterBilinear, FilterGood)) + return FALSE; + if (!PictureSetFilterAlias (pScreen, FilterBilinear, FilterBest)) + return FALSE; + + if (PictureAddFilter (pScreen, FilterConvolution, convolutionFilterValidateParams) < 0) + return FALSE; + + return TRUE; +} + +void +PictureResetFilters (ScreenPtr pScreen) +{ + PictureScreenPtr ps = GetPictureScreen(pScreen); + + xfree (ps->filters); + xfree (ps->filterAliases); + PictureFreeFilterIds (); +} + +int +SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int nparams) +{ + PictFilterPtr pFilter; + xFixed *new_params; + int i, s, result; + + pFilter = PictureFindFilter (screenInfo.screens[0], name, len); + + if (pPicture->pDrawable == NULL) { + /* For source pictures, the picture isn't tied to a screen. So, ensure + * that all screens can handle a filter we set for the picture. + */ + for (s = 0; s < screenInfo.numScreens; s++) { + if (PictureFindFilter (screenInfo.screens[s], name, len)->id != + pFilter->id) + { + return BadMatch; + } + } + } + + if (!pFilter) + return BadName; + if (pFilter->ValidateParams) + { + if (!(*pFilter->ValidateParams) (pPicture, pFilter->id, params, nparams)) + return BadMatch; + } + else if (nparams) + return BadMatch; + + if (nparams != pPicture->filter_nparams) + { + new_params = xalloc (nparams * sizeof (xFixed)); + if (!new_params && nparams) + return BadAlloc; + xfree (pPicture->filter_params); + pPicture->filter_params = new_params; + pPicture->filter_nparams = nparams; + } + for (i = 0; i < nparams; i++) + pPicture->filter_params[i] = params[i]; + pPicture->filter = pFilter->id; + + if (pPicture->pDrawable) { + ScreenPtr pScreen = pPicture->pDrawable->pScreen; + PictureScreenPtr ps = GetPictureScreen(pScreen); + + result = (*ps->ChangePictureFilter) (pPicture, pPicture->filter, + params, nparams); + return result; + } + return Success; +} -- cgit v1.2.3