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This commit is contained in:
Ilya Lavrenov 2012-09-17 19:39:49 +04:00
parent f58c5646b0
commit fffd263ce4
1 changed files with 45 additions and 47 deletions
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92
modules/imgproc/src/imgwarp.cpp
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@ -1423,20 +1423,20 @@ public:
dsize.width *= cn;
AutoBuffer<WT> _buffer(dsize.width*2);
WT *buf = _buffer, *sum = buf + dsize.width;
int k, sy, dx, cur_dy = 0, num = sizeof(WT) * dsize.width;
int k, sy, dx, cur_dy = 0;
WT scale_y = (WT)scale_y_;
CV_Assert( cn <= 4 );
memset(buf, 0, num * 2);
for( dx = 0; dx < dsize.width; dx++ )
buf[dx] = sum[dx] = 0;
#ifdef HAVE_TBB
sy = yofs[range.start];
cur_dy = cur_dy_ofs[sy];
for( ; sy < range.start; sy++ )
{
const T* S = (const T*)(src.data + src.step * sy);
memset(buf, 0, num);
for ( ; sy < range.start; sy++ )
{
const T* S = (const T*)(src.data + src.step*sy);
if( cn == 1 )
for( k = 0; k < xofs_count; k++ )
{
@ -1460,11 +1460,9 @@ public:
int sxn = xofs[k].si;
int dxn = xofs[k].di;
WT alpha = xofs[k].alpha;
WT t0 = buf[dxn] + S[sxn]*alpha;
WT t1 = buf[dxn+1] + S[sxn+1]*alpha;
WT t2 = buf[dxn+2] + S[sxn+2]*alpha;
buf[dxn] = t0; buf[dxn+1] = t1; buf[dxn+2] = t2;
}
else
@ -1473,30 +1471,30 @@ public:
int sxn = xofs[k].si;
int dxn = xofs[k].di;
WT alpha = xofs[k].alpha;
WT t0 = buf[dxn] + S[sxn]*alpha;
WT t1 = buf[dxn+1] + S[sxn+1]*alpha;
buf[dxn] = t0; buf[dxn+1] = t1;
t0 = buf[dxn+2] + S[sxn+2]*alpha;
t1 = buf[dxn+3] + S[sxn+3]*alpha;
buf[dxn+2] = t0; buf[dxn+3] = t1;
}
if( (cur_dy + 1)*scale_y <= sy + 1 || sy == ssize.height - 1 )
{
WT beta = std::max(sy + 1 - (cur_dy + 1) * scale_y, (WT)0);
WT beta = std::max(sy + 1 - (cur_dy+1)*scale_y, (WT)0);
if( fabs(beta) < 1e-3 )
{
if(cur_dy >= dsize.height)
break;
memset(sum, 0, num);
for( dx = 0; dx < dsize.width; dx++ )
sum[dx] = buf[dx] = 0;
}
else
for( dx = 0; dx < dsize.width; dx++ )
sum[dx] = buf[dx] * beta;
{
sum[dx] = buf[dx]*beta;
buf[dx] = 0;
}
cur_dy++;
}
else
@ -1506,18 +1504,20 @@ public:
WT t0 = sum[dx] + buf[dx];
WT t1 = sum[dx+1] + buf[dx+1];
sum[dx] = t0; sum[dx+1] = t1;
buf[dx] = buf[dx+1] = 0;
}
for( ; dx < dsize.width; dx++ )
{
sum[dx] += buf[dx];
buf[dx] = 0;
}
}
}
#endif
for( sy = range.start; sy < range.end; sy++ )
{
const T* S = (const T*)(src.data + src.step * sy);
memset(buf, 0, num);
const T* S = (const T*)(src.data + src.step*sy);
if( cn == 1 )
for( k = 0; k < xofs_count; k++ )
{
@ -1541,11 +1541,9 @@ public:
int sxn = xofs[k].si;
int dxn = xofs[k].di;
WT alpha = xofs[k].alpha;
WT t0 = buf[dxn] + S[sxn]*alpha;
WT t1 = buf[dxn+1] + S[sxn+1]*alpha;
WT t2 = buf[dxn+2] + S[sxn+2]*alpha;
buf[dxn] = t0; buf[dxn+1] = t1; buf[dxn+2] = t2;
}
else
@ -1554,51 +1552,51 @@ public:
int sxn = xofs[k].si;
int dxn = xofs[k].di;
WT alpha = xofs[k].alpha;
WT t0 = buf[dxn] + S[sxn]*alpha;
WT t1 = buf[dxn+1] + S[sxn+1]*alpha;
buf[dxn] = t0; buf[dxn+1] = t1;
t0 = buf[dxn+2] + S[sxn+2]*alpha;
t1 = buf[dxn+3] + S[sxn+3]*alpha;
buf[dxn+2] = t0; buf[dxn+3] = t1;
}
if( (cur_dy + 1)*scale_y <= sy + 1 || sy == ssize.height - 1 )
{
WT beta = std::max(sy + 1 - (cur_dy + 1) * scale_y, (WT)0);
T* D = (T*)(dst.data + dst.step*cur_dy);
WT beta = std::max(sy + 1 - (cur_dy+1)*scale_y, (WT)0);
WT beta1 = 1 - beta;
T* D = (T*)(dst.data + dst.step*cur_dy);
if( fabs(beta) < 1e-3 )
{
if(cur_dy >= dsize.height)
return;
for( dx = 0; dx < dsize.width; dx++ )
D[dx] = saturate_cast<T>((sum[dx] + buf[dx]) / min(scale_y, src.rows - cur_dy * scale_y));
memset(sum, 0, num);
}
else
{
WT beta1 = 1 - beta;
if(cur_dy >= dsize.height) return;
for( dx = 0; dx < dsize.width; dx++ )
{
D[dx] = saturate_cast<T>((sum[dx] + buf[dx] * beta1)/ min(scale_y, src.rows - cur_dy * scale_y));
sum[dx] = buf[dx] * beta;
D[dx] = saturate_cast<T>((sum[dx] + buf[dx]) / min(scale_y, src.rows - cur_dy * scale_y));
sum[dx] = buf[dx] = 0;
}
}
else
for( dx = 0; dx < dsize.width; dx++ )
{
D[dx] = saturate_cast<T>((sum[dx] + buf[dx]* beta1)/ min(scale_y, src.rows - cur_dy*scale_y));
sum[dx] = buf[dx]*beta;
buf[dx] = 0;
}
cur_dy++;
}
else
{
for( dx = 0; dx <= dsize.width - 2; dx += 2 )
{
WT t0 = sum[dx] + buf[dx];
WT t1 = sum[dx+1] + buf[dx+1];
sum[dx] = t0; sum[dx+1] = t1;
WT t0 = sum[dx] + buf[dx];
WT t1 = sum[dx+1] + buf[dx+1];
sum[dx] = t0; sum[dx+1] = t1;
buf[dx] = buf[dx+1] = 0;
}
for( ; dx < dsize.width; dx++ )
sum[dx] += buf[dx];
{
sum[dx] += buf[dx];
buf[dx] = 0;
}
}
}
}
@ -1629,12 +1627,12 @@ static void resizeArea_( const Mat& src, Mat& dst, const DecimateAlpha* xofs, in
{
bool reset = false;
cur_dy_ofs[sy] = cur_dy;
if( (cur_dy + 1)*scale_y_ <= sy + 1 || sy == ssize.height - 1 )
if ((cur_dy + 1) * scale_y_ <= sy + 1 || sy == ssize.height - 1 )
{
WT beta = (WT)std::max(sy + 1 - (cur_dy+1)*scale_y_, 0.);
if( fabs(beta) < 1e-3 )
WT beta = (WT)std::max(sy + 1 - (cur_dy + 1) * scale_y_, 0.);
if (fabs(beta) < 1e-3 )
{
if(cur_dy >= dsize.height)
if (cur_dy >= dsize.height)
break;
reset = true;
}