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Fixed saving Bit values

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AS3: Automatic Calculating Body parameters
This commit is contained in:
Jindra Petk
2011-07-24 20:01:30 +02:00
parent 940a57f5d8
commit 66449bfc6c
153 changed files with 2418 additions and 952 deletions
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87
trunk/src/com/jpexs/asdec/SWFOutputStream.java
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@@ -369,27 +369,40 @@ public class SWFOutputStream extends OutputStream {
write(data);
}
/**
* Get needed bits
* @param number
* @param bits 1 for signed,0 if unsigned
* @return
*/
public static int getNeededBits(int number, int bits)
{
number=Math.abs(number);
int val = 1;
for (int x = 1; val <= number && !(bits > 32); x <<= 1)
{
val = val | x;
bits++;
}
if (bits > 32)
{
assert false : ("minBits " + bits + " must not exceed 32");
}
return bits;
}
/**
* Calculates number of bits needed for representing unsigned value
*
* @param v Unsigned value
* @return Number of bits
*/
public static int getNeededBitsU(long v) {
public static int getNeededBitsU(int v) {
int n = 32;
long m = 0x80000000;
if (v == 0x00000000) n = 0;
else
while (!((v & m) > 0)) {
n--;
m >>= 1;
}
return n;
/*if (value == 0) {
return 1;
}
return Long.toBinaryString(value).length();*/
return getNeededBits(v,0);
}
/**
@@ -398,42 +411,8 @@ public class SWFOutputStream extends OutputStream {
* @param v Signed value
* @return Number of bits
*/
public static int getNeededBitsS(long v) {
int n = 33;
long m = 0x80000000;
if ((v & m) == m) {
if (v == 0xffffffff) n = 1;
else
while ((v & m) == m) {
n--;
m >>= 1;
}
} else {
if (v == 0x00000000) n = 1;
else
while ((v & m) == 0) {
n--;
m >>= 1;
}
}
return n;
/*if (value == 0) {
return 1;
}
if (value == -1) {
return 2;
}
if (value < 0) {
String str = Long.toBinaryString(value);
for (int i = 0; i < str.length(); i++) {
if (str.charAt(i) == '0') {
return str.length() - 1 - i + 2;
}
}
return 1;
} else {
return Long.toBinaryString(value).length() + 1;
} */
public static int getNeededBitsS(int v) {
return getNeededBits(v,1);
}
@@ -455,17 +434,17 @@ public class SWFOutputStream extends OutputStream {
*/
public static int getNeededBitsF(double value) {
if (value == -1) return 18;
long val = (long) (value * (1 << 16));
int val = (int) (value * (1 << 16));
return getNeededBitsS(val);
}
private int enlargeBitCountU(int currentBitCount, long value) {
private int enlargeBitCountU(int currentBitCount, int value) {
int neededNew = getNeededBitsU(value);
if (neededNew > currentBitCount) return neededNew;
return currentBitCount;
}
private int enlargeBitCountS(int currentBitCount, long value) {
private int enlargeBitCountS(int currentBitCount, int value) {
int neededNew = getNeededBitsS(value);
if (neededNew > currentBitCount) return neededNew;
return currentBitCount;
@@ -545,7 +524,7 @@ public class SWFOutputStream extends OutputStream {
writeSB(Nbits, value.greenMultTerm);
writeSB(Nbits, value.blueMultTerm);
writeSB(Nbits, value.alphaMultTerm);
}
}
if (value.hasAddTerms) {
writeSB(Nbits, value.redAddTerm);
writeSB(Nbits, value.greenAddTerm);