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-rw-r--r--nx-X11/programs/Xserver/render/filter.c51
-rw-r--r--nx-X11/programs/Xserver/render/picturestr.h13
2 files changed, 48 insertions, 16 deletions
diff --git a/nx-X11/programs/Xserver/render/filter.c b/nx-X11/programs/Xserver/render/filter.c
index 776bd4237..57a21a8c0 100644
--- a/nx-X11/programs/Xserver/render/filter.c
+++ b/nx-X11/programs/Xserver/render/filter.c
@@ -215,21 +215,30 @@ PictureFindFilter (ScreenPtr pScreen, char *name, int len)
}
static Bool
-convolutionFilterValidateParams (PicturePtr pPicture,
+convolutionFilterValidateParams (ScreenPtr pScreen,
int filter,
xFixed *params,
- int nparams)
+ 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 ((xFixedToInt (params[0]) * xFixedToInt (params[1])) > nparams)
+ if (w * h > nparams)
return FALSE;
+ *width = w;
+ *height = h;
return TRUE;
}
@@ -271,10 +280,8 @@ PictureResetFilters (ScreenPtr pScreen)
int
SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int nparams)
{
- ScreenPtr pScreen;
PictFilterPtr pFilter;
- xFixed *new_params;
- int i;
+ ScreenPtr pScreen;
if (pPicture->pDrawable) {
pScreen = pPicture->pDrawable->pScreen;
@@ -288,7 +295,7 @@ SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int
if (!pFilter)
return BadName;
- if (!pPicture->pDrawable) {
+ if (pPicture->pDrawable == NULL) {
int s;
/* For source pictures, the picture isn't tied to a screen. So, ensure
@@ -303,8 +310,25 @@ SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int
}
}
+ 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) {
- if (!(*pFilter->ValidateParams) (pPicture, pFilter->id, params, nparams))
+ int width, height;
+
+ if (!(*pFilter->ValidateParams) (pScreen, pFilter->id, params, nparams, &width, &height))
return BadMatch;
}
else if (nparams) {
@@ -312,7 +336,7 @@ SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int
}
if (nparams != pPicture->filter_nparams) {
- new_params = xalloc (nparams * sizeof (xFixed));
+ xFixed *new_params = xalloc (nparams * sizeof (xFixed));
if (!new_params && nparams)
return BadAlloc;
@@ -324,9 +348,10 @@ SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int
pPicture->filter_params[i] = params[i];
pPicture->filter = pFilter->id;
- if (pPicture->pDrawable) {
- PictureScreenPtr ps = GetPictureScreen (pScreen);
- int result;
+ if (pPicture->pDrawable)
+ {
+ PictureScreenPtr ps = GetPictureScreen(pScreen);
+ int result;
result = (*ps->ChangePictureFilter) (pPicture, pPicture->filter,
params, nparams);
@@ -335,5 +360,5 @@ SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int
}
pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
- return Success;
+ return ;
}
diff --git a/nx-X11/programs/Xserver/render/picturestr.h b/nx-X11/programs/Xserver/render/picturestr.h
index 96c2b8abc..38d2cc5ec 100644
--- a/nx-X11/programs/Xserver/render/picturestr.h
+++ b/nx-X11/programs/Xserver/render/picturestr.h
@@ -168,12 +168,14 @@ typedef struct _Picture {
SourcePictPtr pSourcePict;
} PictureRec;
-typedef Bool (*PictFilterValidateParamsProcPtr) (PicturePtr pPicture, int id,
- xFixed *params, int nparams);
+typedef Bool (*PictFilterValidateParamsProcPtr) (ScreenPtr pScreen, int id,
+ xFixed *params, int nparams,
+ int *width, int *height);
typedef struct {
char *name;
int id;
PictFilterValidateParamsProcPtr ValidateParams;
+ int width, height;
} PictFilterRec, *PictFilterPtr;
#define PictFilterNearest 0
@@ -457,7 +459,12 @@ PictFilterPtr
PictureFindFilter (ScreenPtr pScreen, char *name, int len);
int
-SetPictureFilter (PicturePtr pPicture, char *name, int len, xFixed *params, int nparams);
+SetPicturePictFilter (PicturePtr pPicture, PictFilterPtr pFilter,
+ xFixed *params, int nparams);
+
+int
+SetPictureFilter (PicturePtr pPicture, char *name, int len,
+ xFixed *params, int nparams);
Bool
PictureFinishInit (void);