diff options
Diffstat (limited to 'xorg-server/render/picture.c')
| -rw-r--r-- | xorg-server/render/picture.c | 45 |
1 files changed, 37 insertions, 8 deletions
diff --git a/xorg-server/render/picture.c b/xorg-server/render/picture.c index d31b77466..ed7a1d8f1 100644 --- a/xorg-server/render/picture.c +++ b/xorg-server/render/picture.c @@ -1773,11 +1773,25 @@ CompositeTriStrip (CARD8 op, int npoints,
xPointFixed *points)
{
- PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
+ ScreenPtr pScreen = pDst->pDrawable->pScreen;
+ PictureScreenPtr ps = GetPictureScreen(pScreen);
+ xTriangle *tris, *tri;
+ int ntri;
- ValidatePicture (pSrc);
- ValidatePicture (pDst);
- (*ps->TriStrip) (op, pSrc, pDst, maskFormat, xSrc, ySrc, npoints, points);
+ if (npoints < 3)
+ return;
+ ntri = npoints - 2;
+ tris = malloc(ntri * sizeof (xTriangle));
+ if (!tris)
+ return;
+ for (tri = tris; npoints >= 3; npoints--, points++, tri++)
+ {
+ tri->p1 = points[0];
+ tri->p2 = points[1];
+ tri->p3 = points[2];
+ }
+ CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
+ free(tris);
}
void
@@ -1790,11 +1804,26 @@ CompositeTriFan (CARD8 op, int npoints,
xPointFixed *points)
{
- PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
+ ScreenPtr pScreen = pDst->pDrawable->pScreen;
+ xTriangle *tris, *tri;
+ xPointFixed *first;
+ int ntri;
- ValidatePicture (pSrc);
- ValidatePicture (pDst);
- (*ps->TriFan) (op, pSrc, pDst, maskFormat, xSrc, ySrc, npoints, points);
+ if (npoints < 3)
+ return;
+ ntri = npoints - 2;
+ tris = malloc(ntri * sizeof (xTriangle));
+ if (!tris)
+ return;
+ first = points++;
+ for (tri = tris; npoints >= 3; npoints--, points++, tri++)
+ {
+ tri->p1 = *first;
+ tri->p2 = points[0];
+ tri->p3 = points[1];
+ }
+ CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
+ free(tris);
}
void
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