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).
360 lines
9.1 KiB
C
360 lines
9.1 KiB
C
/*
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* Copyright © 2002 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 "misc.h"
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#include "scrnintstr.h"
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#include "os.h"
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#include "regionstr.h"
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#include "validate.h"
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#include "windowstr.h"
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#include "input.h"
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#include "resource.h"
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#include "colormapst.h"
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#include "cursorstr.h"
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#include "dixstruct.h"
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#include "gcstruct.h"
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#include "servermd.h"
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#include "picturestr.h"
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static char **filterNames;
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static int nfilterNames;
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/*
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* standard but not required filters don't have constant indices
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*/
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int
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PictureGetFilterId (char *filter, int len, Bool makeit)
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{
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int i;
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char *name;
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char **names;
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if (len < 0)
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len = strlen (filter);
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for (i = 0; i < nfilterNames; i++)
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if (!CompareISOLatin1Lowered ((unsigned char *) filterNames[i], -1, (unsigned char *) filter, len))
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return i;
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if (!makeit)
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return -1;
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name = xalloc (len + 1);
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if (!name)
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return -1;
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memcpy (name, filter, len);
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name[len] = '\0';
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if (filterNames)
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names = xrealloc (filterNames, (nfilterNames + 1) * sizeof (char *));
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else
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names = xalloc (sizeof (char *));
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if (!names)
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{
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xfree (name);
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return -1;
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}
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filterNames = names;
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i = nfilterNames++;
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filterNames[i] = name;
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return i;
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}
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static Bool
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PictureSetDefaultIds (void)
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{
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/* careful here -- this list must match the #define values */
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if (PictureGetFilterId (FilterNearest, -1, TRUE) != PictFilterNearest)
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return FALSE;
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if (PictureGetFilterId (FilterBilinear, -1, TRUE) != PictFilterBilinear)
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return FALSE;
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if (PictureGetFilterId (FilterFast, -1, TRUE) != PictFilterFast)
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return FALSE;
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if (PictureGetFilterId (FilterGood, -1, TRUE) != PictFilterGood)
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return FALSE;
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if (PictureGetFilterId (FilterBest, -1, TRUE) != PictFilterBest)
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return FALSE;
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if (PictureGetFilterId (FilterConvolution, -1, TRUE) != PictFilterConvolution)
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return FALSE;
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return TRUE;
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}
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char *
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PictureGetFilterName (int id)
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{
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if (0 <= id && id < nfilterNames)
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return filterNames[id];
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else
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return 0;
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}
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static void
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PictureFreeFilterIds (void)
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{
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int i;
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for (i = 0; i < nfilterNames; i++)
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xfree (filterNames[i]);
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xfree (filterNames);
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nfilterNames = 0;
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filterNames = 0;
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}
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int
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PictureAddFilter (ScreenPtr pScreen,
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char *filter,
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PictFilterValidateParamsProcPtr ValidateParams,
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int width,
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int height)
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{
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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int id = PictureGetFilterId (filter, -1, TRUE);
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int i;
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PictFilterPtr filters;
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if (id < 0)
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return -1;
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/*
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* It's an error to attempt to reregister a filter
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*/
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for (i = 0; i < ps->nfilters; i++)
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if (ps->filters[i].id == id)
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return -1;
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if (ps->filters)
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filters = xrealloc (ps->filters, (ps->nfilters + 1) * sizeof (PictFilterRec));
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else
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filters = xalloc (sizeof (PictFilterRec));
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if (!filters)
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return -1;
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ps->filters = filters;
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i = ps->nfilters++;
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ps->filters[i].name = PictureGetFilterName (id);
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ps->filters[i].id = id;
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ps->filters[i].ValidateParams = ValidateParams;
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ps->filters[i].width = width;
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ps->filters[i].height = height;
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return id;
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}
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Bool
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PictureSetFilterAlias (ScreenPtr pScreen, char *filter, char *alias)
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{
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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int filter_id = PictureGetFilterId (filter, -1, FALSE);
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int alias_id = PictureGetFilterId (alias, -1, TRUE);
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int i;
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if (filter_id < 0 || alias_id < 0)
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return FALSE;
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for (i = 0; i < ps->nfilterAliases; i++)
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if (ps->filterAliases[i].alias_id == alias_id)
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break;
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if (i == ps->nfilterAliases)
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{
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PictFilterAliasPtr aliases;
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if (ps->filterAliases)
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aliases = xrealloc (ps->filterAliases,
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(ps->nfilterAliases + 1) *
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sizeof (PictFilterAliasRec));
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else
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aliases = xalloc (sizeof (PictFilterAliasRec));
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if (!aliases)
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return FALSE;
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ps->filterAliases = aliases;
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ps->filterAliases[i].alias = PictureGetFilterName (alias_id);
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ps->filterAliases[i].alias_id = alias_id;
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ps->nfilterAliases++;
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}
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ps->filterAliases[i].filter_id = filter_id;
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return TRUE;
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}
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PictFilterPtr
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PictureFindFilter (ScreenPtr pScreen, char *name, int len)
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{
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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int id = PictureGetFilterId (name, len, FALSE);
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int i;
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if (id < 0)
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return 0;
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/* Check for an alias, allow them to recurse */
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for (i = 0; i < ps->nfilterAliases; i++)
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if (ps->filterAliases[i].alias_id == id)
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{
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id = ps->filterAliases[i].filter_id;
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i = 0;
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}
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/* find the filter */
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for (i = 0; i < ps->nfilters; i++)
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if (ps->filters[i].id == id)
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return &ps->filters[i];
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return 0;
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}
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static Bool
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convolutionFilterValidateParams (ScreenPtr pScreen,
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int filter,
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xFixed *params,
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int nparams,
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int *width,
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int *height)
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{
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int w, h;
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if (nparams < 3)
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return FALSE;
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if (xFixedFrac (params[0]) || xFixedFrac (params[1]))
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return FALSE;
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w = xFixedToInt (params[0]);
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h = xFixedToInt (params[1]);
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nparams -= 2;
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if (w * h > nparams)
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return FALSE;
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*width = w;
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*height = h;
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return TRUE;
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}
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Bool
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PictureSetDefaultFilters (ScreenPtr pScreen)
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{
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if (!filterNames)
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if (!PictureSetDefaultIds ())
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return FALSE;
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if (PictureAddFilter (pScreen, FilterNearest, 0, 1, 1) < 0)
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return FALSE;
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if (PictureAddFilter (pScreen, FilterBilinear, 0, 2, 2) < 0)
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return FALSE;
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if (!PictureSetFilterAlias (pScreen, FilterNearest, FilterFast))
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return FALSE;
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if (!PictureSetFilterAlias (pScreen, FilterBilinear, FilterGood))
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return FALSE;
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if (!PictureSetFilterAlias (pScreen, FilterBilinear, FilterBest))
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return FALSE;
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if (PictureAddFilter (pScreen, FilterConvolution, convolutionFilterValidateParams, 0, 0) < 0)
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return FALSE;
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return TRUE;
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}
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void
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PictureResetFilters (ScreenPtr pScreen)
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{
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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xfree (ps->filters);
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xfree (ps->filterAliases);
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PictureFreeFilterIds ();
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}
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int
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SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int nparams)
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{
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PictFilterPtr pFilter;
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ScreenPtr pScreen;
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if (pPicture->pDrawable != NULL)
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pScreen = pPicture->pDrawable->pScreen;
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else
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pScreen = screenInfo.screens[0];
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pFilter = PictureFindFilter (pScreen, name, len);
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if (!pFilter)
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return BadName;
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if (pPicture->pDrawable == NULL)
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{
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int s;
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/* For source pictures, the picture isn't tied to a screen. So, ensure
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* that all screens can handle a filter we set for the picture.
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*/
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for (s = 1; s < screenInfo.numScreens; s++)
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{
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PictFilterPtr pScreenFilter;
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pScreenFilter = PictureFindFilter (screenInfo.screens[s],
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name, len);
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if (!pScreenFilter || pScreenFilter->id != pFilter->id)
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return BadMatch;
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}
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}
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return SetPicturePictFilter (pPicture, pFilter, params, nparams);
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}
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int
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SetPicturePictFilter (PicturePtr pPicture, PictFilterPtr pFilter,
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xFixed *params, int nparams)
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{
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ScreenPtr pScreen;
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int i;
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if (pPicture->pDrawable)
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pScreen = pPicture->pDrawable->pScreen;
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else
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pScreen = screenInfo.screens[0];
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if (pFilter->ValidateParams)
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{
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int width, height;
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if (!(*pFilter->ValidateParams) (pScreen, pFilter->id, params, nparams, &width, &height))
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return BadMatch;
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}
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else if (nparams)
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return BadMatch;
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if (nparams != pPicture->filter_nparams)
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{
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xFixed *new_params = xalloc (nparams * sizeof (xFixed));
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if (!new_params && nparams)
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return BadAlloc;
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xfree (pPicture->filter_params);
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pPicture->filter_params = new_params;
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pPicture->filter_nparams = nparams;
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}
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for (i = 0; i < nparams; i++)
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pPicture->filter_params[i] = params[i];
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pPicture->filter = pFilter->id;
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if (pPicture->pDrawable)
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{
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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int result;
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result = (*ps->ChangePictureFilter) (pPicture, pPicture->filter,
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params, nparams);
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return result;
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}
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return Success;
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}
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