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Fixed: Using faster variant of blur

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This commit is contained in:
Jindra Petřík
2024-11-20 17:05:37 +01:00
parent dea1341986
commit aaa0d11ba8
2 changed files with 163 additions and 1 deletions
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libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/types/filters/Filtering.java
+162 -1
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@@ -58,6 +58,12 @@ public class Filtering {
private static final Rectangle RECTANGLE_512_1 = new Rectangle(512, 1);
private static void boxBlurSingleIteration(int[] pixels, int[] mask, int[] newColors, int w, int h, int radiusX, int radiusY) {
if (true) {
boxBlurSingleIterationTwoPass(pixels, mask, newColors, w, h, radiusX, radiusY);
return;
}
if (radiusX == 0) {
radiusX = 1;
}
@@ -144,6 +150,161 @@ public class Filtering {
}
}
private static void boxBlurSingleIterationTwoPass(int[] pixels, int[] mask, int[] newColors, int w, int h, int radiusX, int radiusY) {
if (radiusX == 0) {
radiusX = 1;
}
if (radiusY == 0) {
radiusY = 1;
}
long limit = Configuration.boxBlurPixelsLimit.get() * 100000L;
if ((long) w * (long) h > limit) {
return;
}
while (((long) radiusY * (long) radiusX * (long) w * (long) h) > limit) {
// decrease radius
if (radiusY > 1) {
radiusY--;
}
if (radiusX > 1) {
radiusX--;
}
}
int[] secondPass = new int[w * h];
boxBlurHorizontal(pixels, mask, secondPass, w, h, radiusX);
boxBlurVertical(secondPass, mask, newColors, w, h, radiusY);
System.arraycopy(newColors, 0, pixels, 0, newColors.length);
}
private static void boxBlurHorizontal(int[] pixels, int[] mask, int[] result, int w, int h, int radius) {
if (radius == 0) {
radius = 1;
}
int radiusHalf = radius / 2;
double divisor = radius;
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
double sumR = 0;
double sumG = 0;
double sumB = 0;
double sumA = 0;
for (int j = x - radiusHalf; j < x - radiusHalf + radius; j++) {
int index2 = y * w + j;
int v;
if (j < 0 || j >= w || (mask != null && (((mask[index2] >> 24) & 0xff) == 0))) {
v = 0;
} else {
v = pixels[index2];
}
double a = (v >> 24) & 0xff;
double r = ((v >> 16) & 0xff);
double g = ((v >> 8) & 0xff);
double b = ((v) & 0xff);
r = r * a / 255.0;
g = g * a / 255.0;
b = b * a / 255.0;
sumA += a;
sumR += r;
sumG += g;
sumB += b;
}
int da = (int) Math.floor(sumA / divisor);
int da_mod = da == 0 ? 255 : da;
int dr = (int) Math.floor(sumR / divisor * 255.0 / (double) da_mod);
int dg = (int) Math.floor(sumG / divisor * 255.0 / (double) da_mod);
int db = (int) Math.floor(sumB / divisor * 255.0 / (double) da_mod);
if (dr > 255) {
dr = 255;
}
if (dg > 255) {
dg = 255;
}
if (db > 255) {
db = 255;
}
int index = y * w + x;
result[index] = RGBA.toInt(dr, dg, db, da);
}
}
}
private static void boxBlurVertical(int[] pixels, int[] mask, int[] result, int w, int h, int radius) {
if (radius == 0) {
radius = 1;
}
int radiusHalf = radius / 2;
double divisor = radius;
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
double sumR = 0;
double sumG = 0;
double sumB = 0;
double sumA = 0;
for (int j = y - radiusHalf; j < y - radiusHalf + radius; j++) {
int index2 = j * w + x;
int v;
if (j < 0 || j >= h || (mask != null && (((mask[index2] >> 24) & 0xff) == 0))) {
v = 0;
} else {
v = pixels[index2];
}
double a = (v >> 24) & 0xff;
double r = ((v >> 16) & 0xff);
double g = ((v >> 8) & 0xff);
double b = ((v) & 0xff);
r = r * a / 255.0;
g = g * a / 255.0;
b = b * a / 255.0;
sumA += a;
sumR += r;
sumG += g;
sumB += b;
}
int da = (int) Math.floor(sumA / divisor);
int da_mod = da == 0 ? 255 : da;
int dr = (int) Math.floor(sumR / divisor * 255.0 / (double) da_mod);
int dg = (int) Math.floor(sumG / divisor * 255.0 / (double) da_mod);
int db = (int) Math.floor(sumB / divisor * 255.0 / (double) da_mod);
if (dr > 255) {
dr = 255;
}
if (dg > 255) {
dg = 255;
}
if (db > 255) {
db = 255;
}
int index = y * w + x;
result[index] = RGBA.toInt(dr, dg, db, da);
}
}
}
private static void premultiply(int[] p) {
int length = p.length;
int offset = 0;
@@ -388,7 +549,7 @@ public class Filtering {
shadow[i] = (shadow[i] & 0xffffff) | (alpha << 24);
}
}
if (knockout || inner) {
for (int i = 0; i < shadow.length; i++) {
int mask = (srcPixels[i] >> 24) & 0xff;