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astc: Use 'enum class' instead of 'enum' for EIntegerEncoding
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@ -144,11 +144,11 @@ private:
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const IntType& m_Bits;
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};
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enum EIntegerEncoding { eIntegerEncoding_JustBits, eIntegerEncoding_Quint, eIntegerEncoding_Trit };
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enum class IntegerEncoding { JustBits, Quint, Trit };
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class IntegerEncodedValue {
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private:
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const EIntegerEncoding m_Encoding;
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const IntegerEncoding m_Encoding;
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const uint32_t m_NumBits;
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uint32_t m_BitValue;
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union {
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@ -164,10 +164,10 @@ public:
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return *this;
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}
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IntegerEncodedValue(EIntegerEncoding encoding, uint32_t numBits)
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IntegerEncodedValue(IntegerEncoding encoding, uint32_t numBits)
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: m_Encoding(encoding), m_NumBits(numBits) {}
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EIntegerEncoding GetEncoding() const {
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IntegerEncoding GetEncoding() const {
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return m_Encoding;
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}
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uint32_t BaseBitLength() const {
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@ -202,9 +202,9 @@ public:
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// Returns the number of bits required to encode nVals values.
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uint32_t GetBitLength(uint32_t nVals) const {
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uint32_t totalBits = m_NumBits * nVals;
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if (m_Encoding == eIntegerEncoding_Trit) {
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if (m_Encoding == IntegerEncoding::Trit) {
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totalBits += (nVals * 8 + 4) / 5;
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} else if (m_Encoding == eIntegerEncoding_Quint) {
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} else if (m_Encoding == IntegerEncoding::Quint) {
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totalBits += (nVals * 7 + 2) / 3;
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}
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return totalBits;
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@ -227,24 +227,24 @@ public:
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// Is maxVal a power of two?
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if (!(check & (check - 1))) {
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return IntegerEncodedValue(eIntegerEncoding_JustBits, Popcnt(maxVal));
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return IntegerEncodedValue(IntegerEncoding::JustBits, Popcnt(maxVal));
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}
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// Is maxVal of the type 3*2^n - 1?
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if ((check % 3 == 0) && !((check / 3) & ((check / 3) - 1))) {
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return IntegerEncodedValue(eIntegerEncoding_Trit, Popcnt(check / 3 - 1));
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return IntegerEncodedValue(IntegerEncoding::Trit, Popcnt(check / 3 - 1));
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}
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// Is maxVal of the type 5*2^n - 1?
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if ((check % 5 == 0) && !((check / 5) & ((check / 5) - 1))) {
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return IntegerEncodedValue(eIntegerEncoding_Quint, Popcnt(check / 5 - 1));
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return IntegerEncodedValue(IntegerEncoding::Quint, Popcnt(check / 5 - 1));
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}
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// Apparently it can't be represented with a bounded integer sequence...
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// just iterate.
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maxVal--;
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}
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return IntegerEncodedValue(eIntegerEncoding_JustBits, 0);
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return IntegerEncodedValue(IntegerEncoding::JustBits, 0);
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}
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// Fills result with the values that are encoded in the given
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@ -259,17 +259,17 @@ public:
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uint32_t nValsDecoded = 0;
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while (nValsDecoded < nValues) {
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switch (val.GetEncoding()) {
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case eIntegerEncoding_Quint:
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case IntegerEncoding::Quint:
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DecodeQuintBlock(bits, result, val.BaseBitLength());
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nValsDecoded += 3;
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break;
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case eIntegerEncoding_Trit:
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case IntegerEncoding::Trit:
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DecodeTritBlock(bits, result, val.BaseBitLength());
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nValsDecoded += 5;
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break;
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case eIntegerEncoding_JustBits:
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case IntegerEncoding::JustBits:
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val.SetBitValue(bits.ReadBits(val.BaseBitLength()));
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result.push_back(val);
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nValsDecoded++;
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@ -332,7 +332,7 @@ private:
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}
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for (uint32_t i = 0; i < 5; i++) {
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IntegerEncodedValue val(eIntegerEncoding_Trit, nBitsPerValue);
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IntegerEncodedValue val(IntegerEncoding::Trit, nBitsPerValue);
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val.SetBitValue(m[i]);
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val.SetTritValue(t[i]);
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result.push_back(val);
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@ -380,7 +380,7 @@ private:
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}
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for (uint32_t i = 0; i < 3; i++) {
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IntegerEncodedValue val(eIntegerEncoding_Quint, nBitsPerValue);
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IntegerEncodedValue val(IntegerEncoding::Quint, nBitsPerValue);
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val.m_BitValue = m[i];
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val.m_QuintValue = q[i];
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result.push_back(val);
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@ -859,12 +859,12 @@ static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* mode
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switch (val.GetEncoding()) {
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// Replicate bits
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case eIntegerEncoding_JustBits:
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case IntegerEncoding::JustBits:
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out[outIdx++] = Replicate(bitval, bitlen, 8);
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break;
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// Use algorithm in C.2.13
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case eIntegerEncoding_Trit: {
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case IntegerEncoding::Trit: {
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D = val.GetTritValue();
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@ -912,10 +912,10 @@ static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* mode
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assert(!"Unsupported trit encoding for color values!");
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break;
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} // switch(bitlen)
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} // case eIntegerEncoding_Trit
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} // case IntegerEncoding::Trit
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break;
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case eIntegerEncoding_Quint: {
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case IntegerEncoding::Quint: {
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D = val.GetQuintValue();
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@ -956,11 +956,11 @@ static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* mode
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assert(!"Unsupported quint encoding for color values!");
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break;
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} // switch(bitlen)
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} // case eIntegerEncoding_Quint
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} // case IntegerEncoding::Quint
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break;
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} // switch(val.GetEncoding())
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if (val.GetEncoding() != eIntegerEncoding_JustBits) {
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if (val.GetEncoding() != IntegerEncoding::JustBits) {
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uint32_t T = D * C + B;
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T ^= A;
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T = (A & 0x80) | (T >> 2);
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@ -983,11 +983,11 @@ static uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
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uint32_t result = 0;
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switch (val.GetEncoding()) {
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case eIntegerEncoding_JustBits:
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case IntegerEncoding::JustBits:
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result = Replicate(bitval, bitlen, 6);
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break;
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case eIntegerEncoding_Trit: {
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case IntegerEncoding::Trit: {
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D = val.GetTritValue();
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assert(D < 3);
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@ -1019,7 +1019,7 @@ static uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
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}
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} break;
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case eIntegerEncoding_Quint: {
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case IntegerEncoding::Quint: {
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D = val.GetQuintValue();
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assert(D < 5);
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@ -1046,7 +1046,7 @@ static uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
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} break;
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}
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if (val.GetEncoding() != eIntegerEncoding_JustBits && bitlen > 0) {
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if (val.GetEncoding() != IntegerEncoding::JustBits && bitlen > 0) {
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// Decode the value...
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result = D * C + B;
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result ^= A;
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