Differential D20246 Diff 55400 libs/image/kis_filter_weights_applicator.h

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libs/image/kis_filter_weights_applicator.h

Show First 20 Lines • Show All 125 Lines • ▼ Show 20 Line(s)123 struct BlendSpan {
126 KisFixedPoint offset; 126​ KisFixedPoint offset;
127 KisFixedPoint offsetInc; 127​ KisFixedPoint offsetInc;
128 }; 128​ };
129 129​
130 inline BlendSpan calculateBlendSpan(int dst_l, int line, KisFilterWeightsBuffer *buffer) const { 130​ inline BlendSpan calculateBlendSpan(int dst_l, int line, KisFilterWeightsBuffer *buffer) const {
131 KisFixedPoint dst_c = l_to_c(dst_l); 131​ KisFixedPoint dst_c = l_to_c(dst_l);
132 KisFixedPoint dst_c_in_src = dstToSrc(dst_c.toFloat(), line); 132​ KisFixedPoint dst_c_in_src = dstToSrc(dst_c.toFloat(), line);
133 133​
134​ // gives the nearest center of the pixel in src ( x e (0, 1> => f(x) = 0.5, x e (1, 2> => f(x) = 1.5 etc. )
134 KisFixedPoint next_c_in_src = (dst_c_in_src - qreal(0.5)).toIntCeil() + qreal(0.5); 135​ KisFixedPoint next_c_in_src = (dst_c_in_src - qreal(0.5)).toIntCeil() + qreal(0.5);
135 136​
136 BlendSpan span; 137​ BlendSpan span;
137 span.offset = (next_c_in_src - dst_c_in_src) * buffer->weightsPositionScale(); 138​ span.offset = (next_c_in_src - dst_c_in_src) * buffer->weightsPositionScale();
138 span.offsetInc = buffer->weightsPositionScale(); 139​ span.offsetInc = buffer->weightsPositionScale();
139 140​
140 Q_ASSERT(span.offset <= span.offsetInc); 141​ Q_ASSERT(span.offset <= span.offsetInc);
141 142​
▲ Show 20 Lines • Show All 72 Lines • ▼ Show 20 Line(s)213 else {
214 dstEnd = findAntialiasedDstEnd(srcLine.start(), filterSupport, line); 215​ dstEnd = findAntialiasedDstEnd(srcLine.start(), filterSupport, line);
215 216​
216 leftSrcBorder = getLeftSrcNeedBorder(dstEnd - 1, line, buffer); 217​ leftSrcBorder = getLeftSrcNeedBorder(dstEnd - 1, line, buffer);
217 rightSrcBorder = getRightSrcNeedBorder(dstStart, line, buffer); 218​ rightSrcBorder = getRightSrcNeedBorder(dstStart, line, buffer);
218 } 219​ }
219 220​
220 if (dstStart >= dstEnd) return LinePos(dstStart, 0); 221​ if (dstStart >= dstEnd) return LinePos(dstStart, 0);
221 if (leftSrcBorder >= rightSrcBorder) return LinePos(dstStart, 0); 222​ if (leftSrcBorder >= rightSrcBorder) return LinePos(dstStart, 0);
222 if (leftSrcBorder > srcLine.start()) return LinePos(dstStart, 0); 223​ if (leftSrcBorder > srcLine.start()) {
223 if (srcLine.end() > rightSrcBorder) return LinePos(dstStart, 9); 224​ leftSrcBorder = srcLine.start();
225​ }
226​ if (srcLine.end() > rightSrcBorder) {
227​ rightSrcBorder = srcLine.end();
228​ }
224 229​
225 int pixelSize = m_src->pixelSize(); 230​ int pixelSize = m_src->pixelSize();
226 KoMixColorsOp *mixOp = m_src->colorSpace()->mixColorsOp(); 231​ KoMixColorsOp *mixOp = m_src->colorSpace()->mixColorsOp();
227 const KoColor defaultPixelObject = m_src->defaultPixel(); 232​ const KoColor defaultPixelObject = m_src->defaultPixel();
228 const quint8 *defaultPixel = defaultPixelObject.data(); 233​ const quint8 *defaultPixel = defaultPixelObject.data();
229 const quint8 *borderPixel = defaultPixel; 234​ const quint8 *borderPixel = defaultPixel;
230 quint8 *srcLineBuf = new quint8[pixelSize * (rightSrcBorder - leftSrcBorder)]; 235​ quint8 *srcLineBuf = new quint8[pixelSize * (rightSrcBorder - leftSrcBorder)];
231 236​
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