diff options
Diffstat (limited to 'xorg-server/render/filter.c')
-rw-r--r-- | xorg-server/render/filter.c | 718 |
1 files changed, 359 insertions, 359 deletions
diff --git a/xorg-server/render/filter.c b/xorg-server/render/filter.c index 53fb86f3d..0cbd47bd2 100644 --- a/xorg-server/render/filter.c +++ b/xorg-server/render/filter.c @@ -1,359 +1,359 @@ -/*
- * 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 <dix-config.h>
-#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 = malloc(len + 1);
- if (!name)
- return -1;
- memcpy (name, filter, len);
- name[len] = '\0';
- if (filterNames)
- names = realloc(filterNames, (nfilterNames + 1) * sizeof (char *));
- else
- names = malloc(sizeof (char *));
- if (!names)
- {
- free(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++)
- free(filterNames[i]);
- free(filterNames);
- nfilterNames = 0;
- filterNames = 0;
-}
-
-int
-PictureAddFilter (ScreenPtr pScreen,
- char *filter,
- PictFilterValidateParamsProcPtr ValidateParams,
- int width,
- int height)
-{
- 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 = realloc(ps->filters, (ps->nfilters + 1) * sizeof (PictFilterRec));
- else
- filters = malloc(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;
- ps->filters[i].width = width;
- ps->filters[i].height = height;
- return id;
-}
-
-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 = realloc(ps->filterAliases,
- (ps->nfilterAliases + 1) *
- sizeof (PictFilterAliasRec));
- else
- aliases = malloc(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 (ScreenPtr pScreen,
- int filter,
- xFixed *params,
- int nparams,
- int *width,
- int *height)
-{
- int w, h;
- if (nparams < 3)
- return FALSE;
-
- if (xFixedFrac (params[0]) || xFixedFrac (params[1]))
- return FALSE;
-
- w = xFixedToInt (params[0]);
- h = xFixedToInt (params[1]);
-
- nparams -= 2;
- if (w * h > nparams)
- return FALSE;
-
- *width = w;
- *height = h;
- return TRUE;
-}
-
-
-Bool
-PictureSetDefaultFilters (ScreenPtr pScreen)
-{
- if (!filterNames)
- if (!PictureSetDefaultIds ())
- return FALSE;
- if (PictureAddFilter (pScreen, FilterNearest, 0, 1, 1) < 0)
- return FALSE;
- if (PictureAddFilter (pScreen, FilterBilinear, 0, 2, 2) < 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, 0) < 0)
- return FALSE;
-
- return TRUE;
-}
-
-void
-PictureResetFilters (ScreenPtr pScreen)
-{
- PictureScreenPtr ps = GetPictureScreen(pScreen);
-
- free(ps->filters);
- free(ps->filterAliases);
- PictureFreeFilterIds ();
-}
-
-int
-SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int nparams)
-{
- PictFilterPtr pFilter;
- ScreenPtr pScreen;
-
- if (pPicture->pDrawable != NULL)
- pScreen = pPicture->pDrawable->pScreen;
- else
- pScreen = screenInfo.screens[0];
-
- pFilter = PictureFindFilter (pScreen, name, len);
-
- if (!pFilter)
- return BadName;
-
- if (pPicture->pDrawable == NULL)
- {
- int s;
- /* 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 = 1; s < screenInfo.numScreens; s++)
- {
- PictFilterPtr pScreenFilter;
- pScreenFilter = PictureFindFilter (screenInfo.screens[s],
- name, len);
- if (!pScreenFilter || pScreenFilter->id != pFilter->id)
- return BadMatch;
- }
- }
- return SetPicturePictFilter (pPicture, pFilter, params, nparams);
-}
-
-int
-SetPicturePictFilter (PicturePtr pPicture, PictFilterPtr pFilter,
- xFixed *params, int nparams)
-{
- ScreenPtr pScreen;
- int i;
-
- if (pPicture->pDrawable)
- pScreen = pPicture->pDrawable->pScreen;
- else
- pScreen = screenInfo.screens[0];
-
- if (pFilter->ValidateParams)
- {
- int width, height;
- if (!(*pFilter->ValidateParams) (pScreen, pFilter->id, params, nparams, &width, &height))
- return BadMatch;
- }
- else if (nparams)
- return BadMatch;
-
- if (nparams != pPicture->filter_nparams)
- {
- xFixed *new_params = malloc(nparams * sizeof (xFixed));
- if (!new_params && nparams)
- return BadAlloc;
- free(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)
- {
- PictureScreenPtr ps = GetPictureScreen(pScreen);
- int result;
-
- result = (*ps->ChangePictureFilter) (pPicture, pPicture->filter,
- params, nparams);
- return result;
- }
- return Success;
-}
+/* + * 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 <dix-config.h> +#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 (const 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 = malloc(len + 1); + if (!name) + return -1; + memcpy (name, filter, len); + name[len] = '\0'; + if (filterNames) + names = realloc(filterNames, (nfilterNames + 1) * sizeof (char *)); + else + names = malloc(sizeof (char *)); + if (!names) + { + free(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++) + free(filterNames[i]); + free(filterNames); + nfilterNames = 0; + filterNames = 0; +} + +int +PictureAddFilter (ScreenPtr pScreen, + const char *filter, + PictFilterValidateParamsProcPtr ValidateParams, + int width, + int height) +{ + 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 = realloc(ps->filters, (ps->nfilters + 1) * sizeof (PictFilterRec)); + else + filters = malloc(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; + ps->filters[i].width = width; + ps->filters[i].height = height; + return id; +} + +Bool +PictureSetFilterAlias (ScreenPtr pScreen, const char *filter, const 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 = realloc(ps->filterAliases, + (ps->nfilterAliases + 1) * + sizeof (PictFilterAliasRec)); + else + aliases = malloc(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 (ScreenPtr pScreen, + int filter, + xFixed *params, + int nparams, + int *width, + int *height) +{ + int w, h; + if (nparams < 3) + return FALSE; + + if (xFixedFrac (params[0]) || xFixedFrac (params[1])) + return FALSE; + + w = xFixedToInt (params[0]); + h = xFixedToInt (params[1]); + + nparams -= 2; + if (w * h > nparams) + return FALSE; + + *width = w; + *height = h; + return TRUE; +} + + +Bool +PictureSetDefaultFilters (ScreenPtr pScreen) +{ + if (!filterNames) + if (!PictureSetDefaultIds ()) + return FALSE; + if (PictureAddFilter (pScreen, FilterNearest, 0, 1, 1) < 0) + return FALSE; + if (PictureAddFilter (pScreen, FilterBilinear, 0, 2, 2) < 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, 0) < 0) + return FALSE; + + return TRUE; +} + +void +PictureResetFilters (ScreenPtr pScreen) +{ + PictureScreenPtr ps = GetPictureScreen(pScreen); + + free(ps->filters); + free(ps->filterAliases); + PictureFreeFilterIds (); +} + +int +SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int nparams) +{ + PictFilterPtr pFilter; + ScreenPtr pScreen; + + if (pPicture->pDrawable != NULL) + pScreen = pPicture->pDrawable->pScreen; + else + pScreen = screenInfo.screens[0]; + + pFilter = PictureFindFilter (pScreen, name, len); + + if (!pFilter) + return BadName; + + if (pPicture->pDrawable == NULL) + { + int s; + /* 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 = 1; s < screenInfo.numScreens; s++) + { + PictFilterPtr pScreenFilter; + pScreenFilter = PictureFindFilter (screenInfo.screens[s], + name, len); + if (!pScreenFilter || pScreenFilter->id != pFilter->id) + return BadMatch; + } + } + return SetPicturePictFilter (pPicture, pFilter, params, nparams); +} + +int +SetPicturePictFilter (PicturePtr pPicture, PictFilterPtr pFilter, + xFixed *params, int nparams) +{ + ScreenPtr pScreen; + int i; + + if (pPicture->pDrawable) + pScreen = pPicture->pDrawable->pScreen; + else + pScreen = screenInfo.screens[0]; + + if (pFilter->ValidateParams) + { + int width, height; + if (!(*pFilter->ValidateParams) (pScreen, pFilter->id, params, nparams, &width, &height)) + return BadMatch; + } + else if (nparams) + return BadMatch; + + if (nparams != pPicture->filter_nparams) + { + xFixed *new_params = malloc(nparams * sizeof (xFixed)); + if (!new_params && nparams) + return BadAlloc; + free(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) + { + PictureScreenPtr ps = GetPictureScreen(pScreen); + int result; + + result = (*ps->ChangePictureFilter) (pPicture, pPicture->filter, + params, nparams); + return result; + } + return Success; +} |