static inline pixman_bool_t
miClipPictureReg(pixman_region16_t * pRegion,
pixman_region16_t * pClip, int dx, int dy)
{
if (pixman_region_n_rects(pRegion) == 1 &&
pixman_region_n_rects(pClip) == 1) {
pixman_box16_t *pRbox = pixman_region_rectangles(pRegion, NULL);
pixman_box16_t *pCbox = pixman_region_rectangles(pClip, NULL);
int v;
if (pRbox->x1 < (v = pCbox->x1 + dx))
pRbox->x1 = BOUND(v);
if (pRbox->x2 > (v = pCbox->x2 + dx))
pRbox->x2 = BOUND(v);
if (pRbox->y1 < (v = pCbox->y1 + dy))
pRbox->y1 = BOUND(v);
if (pRbox->y2 > (v = pCbox->y2 + dy))
pRbox->y2 = BOUND(v);
if (pRbox->x1 >= pRbox->x2 || pRbox->y1 >= pRbox->y2) {
pixman_region_init(pRegion);
}
}
else if (!pixman_region_not_empty(pClip))
return FALSE;
else {
if (dx || dy)
pixman_region_translate(pRegion, -dx, -dy);
if (!pixman_region_intersect(pRegion, pRegion, pClip))
return FALSE;
if (dx || dy)
pixman_region_translate(pRegion, dx, dy);
}
return pixman_region_not_empty(pRegion);
}
BitmapPrivate(Bitmap *self)
: self(self),
megaSurface(0),
surface(0)
{
format = SDL_AllocFormat(SDL_PIXELFORMAT_ABGR8888);
font = &shState->defaultFont();
pixman_region_init(&tainted);
}
EAPI Ecore_X_XRegion *
ecore_x_xregion_new()
{
pixman_region16_t *region;
region = (pixman_region16_t *)malloc (sizeof (pixman_region16_t));
if (!region)
return NULL;
pixman_region_init(region);
return (Ecore_X_XRegion *)region;
}
BitmapPrivate()
: megaSurface(0)
{
font = &shState->defaultFont();
pixman_region_init(&tainted);
}
Bool
miComputeCompositeRegion (RegionPtr pRegion,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
int v;
pRegion->extents.x1 = xDst;
v = xDst + width;
pRegion->extents.x2 = BOUND(v);
pRegion->extents.y1 = yDst;
v = yDst + height;
pRegion->extents.y2 = BOUND(v);
pRegion->data = 0;
/* Check for empty operation */
if (pRegion->extents.x1 >= pRegion->extents.x2 ||
pRegion->extents.y1 >= pRegion->extents.y2)
{
pixman_region_init (pRegion);
return FALSE;
}
/* clip against dst */
if (!miClipPictureReg (pRegion, pDst->pCompositeClip, 0, 0))
{
pixman_region_fini (pRegion);
return FALSE;
}
if (pDst->alphaMap)
{
if (!miClipPictureReg (pRegion, pDst->alphaMap->pCompositeClip,
-pDst->alphaOrigin.x,
-pDst->alphaOrigin.y))
{
pixman_region_fini (pRegion);
return FALSE;
}
}
/* clip against src */
if (!miClipPictureSrc (pRegion, pSrc, xDst - xSrc, yDst - ySrc))
{
pixman_region_fini (pRegion);
return FALSE;
}
if (pSrc->alphaMap)
{
if (!miClipPictureSrc (pRegion, pSrc->alphaMap,
xDst - (xSrc - pSrc->alphaOrigin.x),
yDst - (ySrc - pSrc->alphaOrigin.y)))
{
pixman_region_fini (pRegion);
return FALSE;
}
}
/* clip against mask */
if (pMask)
{
if (!miClipPictureSrc (pRegion, pMask, xDst - xMask, yDst - yMask))
{
pixman_region_fini (pRegion);
return FALSE;
}
if (pMask->alphaMap)
{
if (!miClipPictureSrc (pRegion, pMask->alphaMap,
xDst - (xMask - pMask->alphaOrigin.x),
yDst - (yMask - pMask->alphaOrigin.y)))
{
pixman_region_fini (pRegion);
return FALSE;
}
}
}
miCompositeSourceValidate (pSrc);
if (pMask)
miCompositeSourceValidate (pMask);
return TRUE;
}
void clearTaintedArea()
{
pixman_region_fini(&tainted);
pixman_region_init(&tainted);
}
pixman_bool_t
pixman_compute_composite_region (pixman_region16_t * pRegion,
pixman_image_t * pSrc,
pixman_image_t * pMask,
pixman_image_t * pDst,
int16_t xSrc,
int16_t ySrc,
int16_t xMask,
int16_t yMask,
int16_t xDst,
int16_t yDst,
uint16_t width,
uint16_t height)
{
int v;
pRegion->extents.x1 = xDst;
v = xDst + width;
pRegion->extents.x2 = BOUND(v);
pRegion->extents.y1 = yDst;
v = yDst + height;
pRegion->extents.y2 = BOUND(v);
pRegion->data = 0;
/* Check for empty operation */
if (pRegion->extents.x1 >= pRegion->extents.x2 ||
pRegion->extents.y1 >= pRegion->extents.y2)
{
pixman_region_init (pRegion);
return FALSE;
}
/* clip against dst */
if (!miClipPictureReg (pRegion, &pDst->common.clip_region, 0, 0))
{
pixman_region_fini (pRegion);
return FALSE;
}
if (pDst->common.alpha_map)
{
if (!miClipPictureReg (pRegion, &pDst->common.alpha_map->common.clip_region,
-pDst->common.alpha_origin.x,
-pDst->common.alpha_origin.y))
{
pixman_region_fini (pRegion);
return FALSE;
}
}
/* clip against src */
if (!miClipPictureSrc (pRegion, pSrc, xDst - xSrc, yDst - ySrc))
{
pixman_region_fini (pRegion);
return FALSE;
}
if (pSrc->common.alpha_map)
{
if (!miClipPictureSrc (pRegion, (pixman_image_t *)pSrc->common.alpha_map,
xDst - (xSrc + pSrc->common.alpha_origin.x),
yDst - (ySrc + pSrc->common.alpha_origin.y)))
{
pixman_region_fini (pRegion);
return FALSE;
}
}
/* clip against mask */
if (pMask)
{
if (!miClipPictureSrc (pRegion, pMask, xDst - xMask, yDst - yMask))
{
pixman_region_fini (pRegion);
return FALSE;
}
if (pMask->common.alpha_map)
{
if (!miClipPictureSrc (pRegion, (pixman_image_t *)pMask->common.alpha_map,
xDst - (xMask + pMask->common.alpha_origin.x),
yDst - (yMask + pMask->common.alpha_origin.y)))
{
pixman_region_fini (pRegion);
return FALSE;
}
}
}
return TRUE;
}
