static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
int cw= mpi->w >> mpi->chroma_x_shift;
int ch= mpi->h >> mpi->chroma_y_shift;
int W = mpi->w, H = mpi->h;
mp_image_t *dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_IP, MP_IMGFLAG_ACCEPT_STRIDE |
MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
mpi->w,mpi->h);
if(!dmpi) return 0;
if (!vf->priv->pmpi) vf->priv->pmpi=mpi;
deNoise(mpi->planes[0], vf->priv->pmpi->planes[0], dmpi->planes[0],
vf->priv->Line, W, H,
mpi->stride[0], vf->priv->pmpi->stride[0], dmpi->stride[0],
vf->priv->Coefs[0] + 256,
vf->priv->Coefs[0] + 256,
vf->priv->Coefs[1] + 256);
deNoise(mpi->planes[1], vf->priv->pmpi->planes[1], dmpi->planes[1],
vf->priv->Line, cw, ch,
mpi->stride[1], vf->priv->pmpi->stride[1], dmpi->stride[1],
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[3] + 256);
deNoise(mpi->planes[2], vf->priv->pmpi->planes[2], dmpi->planes[2],
vf->priv->Line, cw, ch,
mpi->stride[2], vf->priv->pmpi->stride[2], dmpi->stride[2],
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[2] + 256,
vf->priv->Coefs[3] + 256);
vf->priv->pmpi=dmpi; // save reference image
return ff_vf_next_put_image(vf,dmpi, pts);
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
mp_image_t *dmpi;
if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
// no DR, so get a new image! hope we'll get DR buffer:
dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP,
MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
mpi->width,mpi->height);
ff_vf_clone_mpi_attributes(dmpi, mpi);
}else{
dmpi=vf->dmpi;
}
vf->priv->mpeg2= mpi->qscale_type;
if(vf->priv->log2_count || !(mpi->flags&MP_IMGFLAG_DIRECT)){
if(mpi->qscale || vf->priv->qp){
filter(vf->priv, dmpi->planes, mpi->planes, dmpi->stride, mpi->stride, mpi->w, mpi->h, mpi->qscale, mpi->qstride);
}else{
memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
memcpy_pic(dmpi->planes[1], mpi->planes[1], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[1], mpi->stride[1]);
memcpy_pic(dmpi->planes[2], mpi->planes[2], mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, dmpi->stride[2], mpi->stride[2]);
}
}
#if HAVE_MMX
if(ff_gCpuCaps.hasMMX) __asm__ volatile ("emms\n\t");
#endif
#if HAVE_MMX2
if(ff_gCpuCaps.hasMMX2) __asm__ volatile ("sfence\n\t");
#endif
return ff_vf_next_put_image(vf,dmpi, pts);
}
static void get_image(struct vf_instance *vf, mp_image_t *mpi){
if(mpi->flags&MP_IMGFLAG_PRESERVE) return; // don't change
// ok, we can do pp in-place (or pp disabled):
vf->dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
mpi->type, mpi->flags | MP_IMGFLAG_READABLE, mpi->width, mpi->height);
mpi->planes[0]=vf->dmpi->planes[0];
mpi->stride[0]=vf->dmpi->stride[0];
mpi->width=vf->dmpi->width;
if(mpi->flags&MP_IMGFLAG_PLANAR){
mpi->planes[1]=vf->dmpi->planes[1];
mpi->planes[2]=vf->dmpi->planes[2];
mpi->stride[1]=vf->dmpi->stride[1];
mpi->stride[2]=vf->dmpi->stride[2];
}
mpi->flags|=MP_IMGFLAG_DIRECT;
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
int cw= mpi->w >> mpi->chroma_x_shift;
int ch= mpi->h >> mpi->chroma_y_shift;
mp_image_t *dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w,mpi->h);
assert(mpi->flags&MP_IMGFLAG_PLANAR);
blur(dmpi->planes[0], mpi->planes[0], mpi->w,mpi->h, dmpi->stride[0], mpi->stride[0], &vf->priv->luma);
blur(dmpi->planes[1], mpi->planes[1], cw , ch , dmpi->stride[1], mpi->stride[1], &vf->priv->chroma);
blur(dmpi->planes[2], mpi->planes[2], cw , ch , dmpi->stride[2], mpi->stride[2], &vf->priv->chroma);
return ff_vf_next_put_image(vf,dmpi, pts);
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
{
int ret = 0;
mp_image_t *dmpi;
switch (vf->priv->mode) {
case 0:
dmpi = vf->priv->dmpi;
if (dmpi == NULL) {
dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
MP_IMGFLAG_PRESERVE,
mpi->width, mpi->height*2);
vf->priv->dmpi = dmpi;
memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
dmpi->stride[0]*2, mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(dmpi->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[1]*2, mpi->stride[1]);
memcpy_pic(dmpi->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[2]*2, mpi->stride[2]);
}
} else {
vf->priv->dmpi = NULL;
memcpy_pic(dmpi->planes[0]+dmpi->stride[0], mpi->planes[0], mpi->w, mpi->h,
dmpi->stride[0]*2, mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(dmpi->planes[1]+dmpi->stride[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[1]*2, mpi->stride[1]);
memcpy_pic(dmpi->planes[2]+dmpi->stride[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[2]*2, mpi->stride[2]);
}
ret = ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
}
break;
case 1:
if (vf->priv->frame & 1)
ret = ff_vf_next_put_image(vf, mpi, MP_NOPTS_VALUE);
break;
case 2:
if ((vf->priv->frame & 1) == 0)
ret = ff_vf_next_put_image(vf, mpi, MP_NOPTS_VALUE);
break;
case 3:
dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->width, mpi->height*2);
/* fixme, just clear alternate lines */
ff_vf_mpi_clear(dmpi, 0, 0, dmpi->w, dmpi->h);
if ((vf->priv->frame & 1) == 0) {
memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
dmpi->stride[0]*2, mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(dmpi->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[1]*2, mpi->stride[1]);
memcpy_pic(dmpi->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[2]*2, mpi->stride[2]);
}
} else {
memcpy_pic(dmpi->planes[0]+dmpi->stride[0], mpi->planes[0], mpi->w, mpi->h,
dmpi->stride[0]*2, mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(dmpi->planes[1]+dmpi->stride[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[1]*2, mpi->stride[1]);
memcpy_pic(dmpi->planes[2]+dmpi->stride[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[2]*2, mpi->stride[2]);
}
}
ret = ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
break;
case 4:
// Interleave even lines (only) from Frame 'i' with odd
// lines (only) from Frame 'i+1', halving the Frame
// rate and preserving image height.
dmpi = vf->priv->dmpi;
// @@ Need help: Should I set dmpi->fields to indicate
// that the (new) frame will be interlaced!? E.g. ...
// dmpi->fields |= MP_IMGFIELD_INTERLACED;
// dmpi->fields |= MP_IMGFIELD_TOP_FIRST;
// etc.
if (dmpi == NULL) {
dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
MP_IMGFLAG_PRESERVE,
mpi->width, mpi->height);
vf->priv->dmpi = dmpi;
my_memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
dmpi->stride[0]*2, mpi->stride[0]*2);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
my_memcpy_pic(dmpi->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, mpi->stride[1]*2);
my_memcpy_pic(dmpi->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, mpi->stride[2]*2);
}
} else {
vf->priv->dmpi = NULL;
my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
mpi->planes[0]+mpi->stride[0],
mpi->w, mpi->h/2,
dmpi->stride[0]*2, mpi->stride[0]*2);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
mpi->planes[1]+mpi->stride[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, mpi->stride[1]*2);
my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
mpi->planes[2]+mpi->stride[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, mpi->stride[2]*2);
}
ret = ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
}
break;
}
vf->priv->frame++;
return ret;
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
{
struct pullup_context *c = vf->priv->ctx;
struct pullup_buffer *b;
struct pullup_frame *f;
mp_image_t *dmpi;
int ret;
int p;
int i;
if (!vf->priv->init) init_pullup(vf, mpi);
if (mpi->flags & MP_IMGFLAG_DIRECT) {
b = mpi->priv;
mpi->priv = 0;
} else {
b = ff_pullup_get_buffer(c, 2);
if (!b) {
ff_mp_msg(MSGT_VFILTER,MSGL_ERR,"Could not get buffer from pullup!\n");
f = ff_pullup_get_frame(c);
ff_pullup_release_frame(f);
return 0;
}
memcpy_pic(b->planes[0], mpi->planes[0], mpi->w, mpi->h,
c->stride[0], mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(b->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
c->stride[1], mpi->stride[1]);
memcpy_pic(b->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
c->stride[2], mpi->stride[2]);
}
}
if (mpi->qscale) {
fast_memcpy(b->planes[3], mpi->qscale, c->w[3]);
fast_memcpy(b->planes[3]+c->w[3], mpi->qscale, c->w[3]);
}
p = mpi->fields & MP_IMGFIELD_TOP_FIRST ? 0 :
(mpi->fields & MP_IMGFIELD_ORDERED ? 1 : 0);
ff_pullup_submit_field(c, b, p);
ff_pullup_submit_field(c, b, p^1);
if (mpi->fields & MP_IMGFIELD_REPEAT_FIRST)
ff_pullup_submit_field(c, b, p);
ff_pullup_release_buffer(b, 2);
f = ff_pullup_get_frame(c);
/* Fake yes for first few frames (buffer depth) to keep from
* breaking A/V sync with G1's bad architecture... */
if (!f) return vf->priv->fakecount ? (--vf->priv->fakecount,1) : 0;
if (f->length < 2) {
ff_pullup_release_frame(f);
f = ff_pullup_get_frame(c);
if (!f) return 0;
if (f->length < 2) {
ff_pullup_release_frame(f);
if (!(mpi->fields & MP_IMGFIELD_REPEAT_FIRST))
return 0;
f = ff_pullup_get_frame(c);
if (!f) return 0;
if (f->length < 2) {
ff_pullup_release_frame(f);
return 0;
}
}
}
#if 0
/* Average qscale tables from both frames. */
if (mpi->qscale) {
for (i=0; i<c->w[3]; i++) {
vf->priv->qbuf[i] = (f->ofields[0]->planes[3][i]
+ f->ofields[1]->planes[3][i+c->w[3]])>>1;
}
}
#else
/* Take worst of qscale tables from both frames. */
if (mpi->qscale) {
for (i=0; i<c->w[3]; i++) {
vf->priv->qbuf[i] = MAX(f->ofields[0]->planes[3][i], f->ofields[1]->planes[3][i+c->w[3]]);
}
}
#endif
/* If the frame isn't already exportable... */
while (!f->buffer) {
dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->width, mpi->height);
/* FIXME: Is it ok to discard dmpi if it's not direct? */
if (!(dmpi->flags & MP_IMGFLAG_DIRECT)) {
ff_pullup_pack_frame(c, f);
break;
}
/* Direct render fields into output buffer */
my_memcpy_pic(dmpi->planes[0], f->ofields[0]->planes[0],
mpi->w, mpi->h/2, dmpi->stride[0]*2, c->stride[0]*2);
my_memcpy_pic(dmpi->planes[0] + dmpi->stride[0],
f->ofields[1]->planes[0] + c->stride[0],
mpi->w, mpi->h/2, dmpi->stride[0]*2, c->stride[0]*2);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
my_memcpy_pic(dmpi->planes[1], f->ofields[0]->planes[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, c->stride[1]*2);
my_memcpy_pic(dmpi->planes[1] + dmpi->stride[1],
f->ofields[1]->planes[1] + c->stride[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, c->stride[1]*2);
my_memcpy_pic(dmpi->planes[2], f->ofields[0]->planes[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, c->stride[2]*2);
my_memcpy_pic(dmpi->planes[2] + dmpi->stride[2],
f->ofields[1]->planes[2] + c->stride[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, c->stride[2]*2);
}
ff_pullup_release_frame(f);
if (mpi->qscale) {
dmpi->qscale = vf->priv->qbuf;
dmpi->qstride = mpi->qstride;
dmpi->qscale_type = mpi->qscale_type;
}
return ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
}
dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->width, mpi->height);
dmpi->planes[0] = f->buffer->planes[0];
dmpi->planes[1] = f->buffer->planes[1];
dmpi->planes[2] = f->buffer->planes[2];
dmpi->stride[0] = c->stride[0];
dmpi->stride[1] = c->stride[1];
dmpi->stride[2] = c->stride[2];
if (mpi->qscale) {
dmpi->qscale = vf->priv->qbuf;
dmpi->qstride = mpi->qstride;
dmpi->qscale_type = mpi->qscale_type;
}
ret = ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
ff_pullup_release_frame(f);
return ret;
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
int cw= mpi->w >> mpi->chroma_x_shift;
int ch= mpi->h >> mpi->chroma_y_shift;
int W = mpi->w, H = mpi->h;
const unsigned char *prvp, *prvpp, *prvpn, *prvpnn, *prvppp, *prvp4p, *prvp4n;
const unsigned char *srcp_saved;
const unsigned char *srcp, *srcpp, *srcpn, *srcpnn, *srcppp, *srcp3p, *srcp3n, *srcp4p, *srcp4n;
unsigned char *dstp, *dstp_saved;
int src_pitch;
int psrc_pitch;
int dst_pitch;
int x, y, z;
int n = vf->priv->frame++;
int val, hi, lo, w, h;
double valf;
int plane;
int threshold = vf->priv->thresh;
int order = vf->priv->order;
int map = vf->priv->map;
int sharp = vf->priv->sharp;
int twoway = vf->priv->twoway;
mp_image_t *dmpi, *pmpi;
if(!vf->priv->do_deinterlace)
return ff_vf_next_put_image(vf, mpi, pts);
dmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_IP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w,mpi->h);
pmpi=ff_vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w,mpi->h);
if(!dmpi) return 0;
for (z=0; z<mpi->num_planes; z++) {
if (z == 0) plane = PLANAR_Y;
else if (z == 1) plane = PLANAR_U;
else plane = PLANAR_V;
h = plane == PLANAR_Y ? H : ch;
w = plane == PLANAR_Y ? W : cw;
srcp = srcp_saved = mpi->planes[z];
src_pitch = mpi->stride[z];
psrc_pitch = pmpi->stride[z];
dstp = dstp_saved = dmpi->planes[z];
dst_pitch = dmpi->stride[z];
srcp = srcp_saved + (1-order) * src_pitch;
dstp = dstp_saved + (1-order) * dst_pitch;
for (y=0; y<h; y+=2) {
fast_memcpy(dstp, srcp, w);
srcp += 2*src_pitch;
dstp += 2*dst_pitch;
}
// Copy through the lines that will be missed below.
fast_memcpy(dstp_saved + order*dst_pitch, srcp_saved + (1-order)*src_pitch, w);
fast_memcpy(dstp_saved + (2+order)*dst_pitch, srcp_saved + (3-order)*src_pitch, w);
fast_memcpy(dstp_saved + (h-2+order)*dst_pitch, srcp_saved + (h-1-order)*src_pitch, w);
fast_memcpy(dstp_saved + (h-4+order)*dst_pitch, srcp_saved + (h-3-order)*src_pitch, w);
/* For the other field choose adaptively between using the previous field
or the interpolant from the current field. */
prvp = pmpi->planes[z] + 5*psrc_pitch - (1-order)*psrc_pitch;
prvpp = prvp - psrc_pitch;
prvppp = prvp - 2*psrc_pitch;
prvp4p = prvp - 4*psrc_pitch;
prvpn = prvp + psrc_pitch;
prvpnn = prvp + 2*psrc_pitch;
prvp4n = prvp + 4*psrc_pitch;
srcp = srcp_saved + 5*src_pitch - (1-order)*src_pitch;
srcpp = srcp - src_pitch;
srcppp = srcp - 2*src_pitch;
srcp3p = srcp - 3*src_pitch;
srcp4p = srcp - 4*src_pitch;
srcpn = srcp + src_pitch;
srcpnn = srcp + 2*src_pitch;
srcp3n = srcp + 3*src_pitch;
srcp4n = srcp + 4*src_pitch;
dstp = dstp_saved + 5*dst_pitch - (1-order)*dst_pitch;
for (y = 5 - (1-order); y <= h - 5 - (1-order); y+=2)
{
for (x = 0; x < w; x++)
{
if ((threshold == 0) || (n == 0) ||
(abs((int)prvp[x] - (int)srcp[x]) > threshold) ||
(abs((int)prvpp[x] - (int)srcpp[x]) > threshold) ||
(abs((int)prvpn[x] - (int)srcpn[x]) > threshold))
{
if (map == 1)
{
int g = x & ~3;
if (IsRGB(mpi) == 1)
{
dstp[g++] = 255;
dstp[g++] = 255;
dstp[g++] = 255;
dstp[g] = 255;
x = g;
}
else if (IsYUY2(mpi) == 1)
{
dstp[g++] = 235;
dstp[g++] = 128;
dstp[g++] = 235;
dstp[g] = 128;
x = g;
}
else
{
if (plane == PLANAR_Y) dstp[x] = 235;
else dstp[x] = 128;
}
}
else
{
if (IsRGB(mpi))
{
hi = 255;
lo = 0;
}
else if (IsYUY2(mpi))
{
hi = (x & 1) ? 240 : 235;
lo = 16;
}
else
{
hi = (plane == PLANAR_Y) ? 235 : 240;
lo = 16;
}
if (sharp == 1)
{
if (twoway == 1)
valf = + 0.526*((int)srcpp[x] + (int)srcpn[x])
+ 0.170*((int)srcp[x] + (int)prvp[x])
- 0.116*((int)srcppp[x] + (int)srcpnn[x] + (int)prvppp[x] + (int)prvpnn[x])
- 0.026*((int)srcp3p[x] + (int)srcp3n[x])
+ 0.031*((int)srcp4p[x] + (int)srcp4n[x] + (int)prvp4p[x] + (int)prvp4n[x]);
else
valf = + 0.526*((int)srcpp[x] + (int)srcpn[x])
+ 0.170*((int)prvp[x])
- 0.116*((int)prvppp[x] + (int)prvpnn[x])
- 0.026*((int)srcp3p[x] + (int)srcp3n[x])
+ 0.031*((int)prvp4p[x] + (int)prvp4p[x]);
if (valf > hi) valf = hi;
else if (valf < lo) valf = lo;
dstp[x] = (int) valf;
}
else
{
if (twoway == 1)
val = (8*((int)srcpp[x] + (int)srcpn[x]) + 2*((int)srcp[x] + (int)prvp[x]) -
(int)(srcppp[x]) - (int)(srcpnn[x]) -
(int)(prvppp[x]) - (int)(prvpnn[x])) >> 4;
else
val = (8*((int)srcpp[x] + (int)srcpn[x]) + 2*((int)prvp[x]) -
(int)(prvppp[x]) - (int)(prvpnn[x])) >> 4;
if (val > hi) val = hi;
else if (val < lo) val = lo;
dstp[x] = (int) val;
}
}
}
else
{
dstp[x] = srcp[x];
}
}
prvp += 2*psrc_pitch;
prvpp += 2*psrc_pitch;
prvppp += 2*psrc_pitch;
prvpn += 2*psrc_pitch;
prvpnn += 2*psrc_pitch;
prvp4p += 2*psrc_pitch;
prvp4n += 2*psrc_pitch;
srcp += 2*src_pitch;
srcpp += 2*src_pitch;
srcppp += 2*src_pitch;
srcp3p += 2*src_pitch;
srcp4p += 2*src_pitch;
srcpn += 2*src_pitch;
srcpnn += 2*src_pitch;
srcp3n += 2*src_pitch;
srcp4n += 2*src_pitch;
dstp += 2*dst_pitch;
}