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Fixed convolution filter rendering

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This commit is contained in:
Jindra Petřík
2023-10-12 22:28:46 +02:00
parent 15af8074b4
commit 2bb884487f
1 changed files with 43 additions and 22 deletions
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65
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/types/filters/ConvolveOp.java
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@@ -30,8 +30,7 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
private final int srcY;
private final int srcWidth;
private final int srcHeight;
public ConvolveOp(Kernel kernel,
RenderingHints hints,
float divisor,
@@ -118,7 +117,7 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
int kWidth = kernel.getWidth();
int kHeight = kernel.getHeight();
int left = kernel.getXOrigin();
int top = kernel.getYOrigin();
int top = kernel.getYOrigin();
int[] maxValue = src.getSampleModel().getSampleSize();
for (int i = 0; i < maxValue.length; i++) {
@@ -130,16 +129,38 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
for (int x = srcX - left; x < srcX + srcWidth + left + 1; x++) {
for (int y = srcY - top; y < srcY + srcHeight + top + 1; y++) {
float a;
if (preserveAlpha && (x < srcX || y < srcY || x >= srcX + srcWidth + 1 || y >= srcY + srcHeight + 1)) {
dest.setSample(x, y, 3, 255);
a = 255;
} else {
if (preserveAlpha) {
a = src.getSample(x, y, 3);
dest.setSample(x, y, 3, a);
} else {
a = calculateBand(src, dest, maxValue, kvals, kWidth, kHeight, left, top, x, y, 3, 255f, false);
if (preserveAlpha) {
boolean outSide = false;
int fsrcX = x;
int fsrcY = y;
if (fsrcX < srcX) {
fsrcX = srcX;
outSide = true;
}
if (fsrcY < srcY) {
fsrcY = srcY;
outSide = true;
}
if (fsrcX >= srcX + srcWidth + 1) {
fsrcX = srcX + srcWidth;
outSide = true;
}
if (fsrcY >= srcY + srcHeight + 1) {
fsrcY = srcY + srcHeight;
outSide = true;
}
if (outSide) {
if (clamp) {
a = src.getSample(fsrcX, fsrcY, 3);
} else {
a = defaultColor.getAlpha();
}
} else {
a = src.getSample(x, y, 3);
}
dest.setSample(x, y, 3, a);
} else {
a = calculateBand(src, dest, maxValue, kvals, kWidth, kHeight, left, top, x, y, 3, 255f, false);
}
for (int b = 0; b < 3; b++) {
@@ -176,7 +197,7 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
outSide = true;
}
if (nSrcX >= srcX + srcWidth + 1) {
nSrcX = srcX + srcWidth - 1;
nSrcX = srcX + srcWidth;
outSide = true;
}
if (nSrcY < srcY) {
@@ -184,9 +205,9 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
outSide = true;
}
if (nSrcY >= srcY + srcHeight + 1) {
nSrcY = srcY + srcHeight - 1;
nSrcY = srcY + srcHeight;
outSide = true;
}
}
float v = 0;
if (outSide && !clamp) {
@@ -205,10 +226,10 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
break;
}
} else {
int srcRealX = nSrcX;
int srcRealY = nSrcY;
v = src.getSample(srcRealX, srcRealY, b);
if (multiply) {
@@ -220,13 +241,13 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
}
}
}
nv += v * kvals[i * kWidth + j];
}
}
}
nv /= divisor;
nv += bias;
if (nv > maxValue[b]) {
nv = maxValue[b];
} else if (nv < 0) {
@@ -237,8 +258,8 @@ public class ConvolveOp implements BufferedImageOp, RasterOp {
}
nv = Math.round(nv);
int destX = x;
int destY = y;
int destY = y;
dest.setSample(destX, destY, b, nv);
return nv;
}