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Code Issues Releases Activity

astc: Use 'enum class' instead of 'enum' for EIntegerEncoding

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This commit is contained in:
ReinUsesLisp 2020-03-13 22:20:12 -03:00
parent 666d431ad8
commit d3dc4e399c
1 changed files with 25 additions and 25 deletions
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50
src/video_core/textures/astc.cpp
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@ -144,11 +144,11 @@ private:
const IntType& m_Bits; const IntType& m_Bits;
}; };
enum EIntegerEncoding { eIntegerEncoding_JustBits, eIntegerEncoding_Quint, eIntegerEncoding_Trit }; enum class IntegerEncoding { JustBits, Quint, Trit };
class IntegerEncodedValue { class IntegerEncodedValue {
private: private:
const EIntegerEncoding m_Encoding; const IntegerEncoding m_Encoding;
const uint32_t m_NumBits; const uint32_t m_NumBits;
uint32_t m_BitValue; uint32_t m_BitValue;
union { union {
@ -164,10 +164,10 @@ public:
return *this; return *this;
} }
IntegerEncodedValue(EIntegerEncoding encoding, uint32_t numBits) IntegerEncodedValue(IntegerEncoding encoding, uint32_t numBits)
: m_Encoding(encoding), m_NumBits(numBits) {} : m_Encoding(encoding), m_NumBits(numBits) {}
EIntegerEncoding GetEncoding() const { IntegerEncoding GetEncoding() const {
return m_Encoding; return m_Encoding;
} }
uint32_t BaseBitLength() const { uint32_t BaseBitLength() const {
@ -202,9 +202,9 @@ public:
// Returns the number of bits required to encode nVals values. // Returns the number of bits required to encode nVals values.
uint32_t GetBitLength(uint32_t nVals) const { uint32_t GetBitLength(uint32_t nVals) const {
uint32_t totalBits = m_NumBits * nVals; uint32_t totalBits = m_NumBits * nVals;
if (m_Encoding == eIntegerEncoding_Trit) { if (m_Encoding == IntegerEncoding::Trit) {
totalBits += (nVals * 8 + 4) / 5; totalBits += (nVals * 8 + 4) / 5;
} else if (m_Encoding == eIntegerEncoding_Quint) { } else if (m_Encoding == IntegerEncoding::Quint) {
totalBits += (nVals * 7 + 2) / 3; totalBits += (nVals * 7 + 2) / 3;
} }
return totalBits; return totalBits;
@ -227,24 +227,24 @@ public:
// Is maxVal a power of two? // Is maxVal a power of two?
if (!(check & (check - 1))) { if (!(check & (check - 1))) {
return IntegerEncodedValue(eIntegerEncoding_JustBits, Popcnt(maxVal)); return IntegerEncodedValue(IntegerEncoding::JustBits, Popcnt(maxVal));
} }
// Is maxVal of the type 3*2^n - 1? // Is maxVal of the type 3*2^n - 1?
if ((check % 3 == 0) && !((check / 3) & ((check / 3) - 1))) { if ((check % 3 == 0) && !((check / 3) & ((check / 3) - 1))) {
return IntegerEncodedValue(eIntegerEncoding_Trit, Popcnt(check / 3 - 1)); return IntegerEncodedValue(IntegerEncoding::Trit, Popcnt(check / 3 - 1));
} }
// Is maxVal of the type 5*2^n - 1? // Is maxVal of the type 5*2^n - 1?
if ((check % 5 == 0) && !((check / 5) & ((check / 5) - 1))) { if ((check % 5 == 0) && !((check / 5) & ((check / 5) - 1))) {
return IntegerEncodedValue(eIntegerEncoding_Quint, Popcnt(check / 5 - 1)); return IntegerEncodedValue(IntegerEncoding::Quint, Popcnt(check / 5 - 1));
} }
// Apparently it can't be represented with a bounded integer sequence... // Apparently it can't be represented with a bounded integer sequence...
// just iterate. // just iterate.
maxVal--; maxVal--;
} }
return IntegerEncodedValue(eIntegerEncoding_JustBits, 0); return IntegerEncodedValue(IntegerEncoding::JustBits, 0);
} }
// Fills result with the values that are encoded in the given // Fills result with the values that are encoded in the given
@ -259,17 +259,17 @@ public:
uint32_t nValsDecoded = 0; uint32_t nValsDecoded = 0;
while (nValsDecoded < nValues) { while (nValsDecoded < nValues) {
switch (val.GetEncoding()) { switch (val.GetEncoding()) {
case eIntegerEncoding_Quint: case IntegerEncoding::Quint:
DecodeQuintBlock(bits, result, val.BaseBitLength()); DecodeQuintBlock(bits, result, val.BaseBitLength());
nValsDecoded += 3; nValsDecoded += 3;
break; break;
case eIntegerEncoding_Trit: case IntegerEncoding::Trit:
DecodeTritBlock(bits, result, val.BaseBitLength()); DecodeTritBlock(bits, result, val.BaseBitLength());
nValsDecoded += 5; nValsDecoded += 5;
break; break;
case eIntegerEncoding_JustBits: case IntegerEncoding::JustBits:
val.SetBitValue(bits.ReadBits(val.BaseBitLength())); val.SetBitValue(bits.ReadBits(val.BaseBitLength()));
result.push_back(val); result.push_back(val);
nValsDecoded++; nValsDecoded++;
@ -332,7 +332,7 @@ private:
} }
for (uint32_t i = 0; i < 5; i++) { for (uint32_t i = 0; i < 5; i++) {
IntegerEncodedValue val(eIntegerEncoding_Trit, nBitsPerValue); IntegerEncodedValue val(IntegerEncoding::Trit, nBitsPerValue);
val.SetBitValue(m[i]); val.SetBitValue(m[i]);
val.SetTritValue(t[i]); val.SetTritValue(t[i]);
result.push_back(val); result.push_back(val);
@ -380,7 +380,7 @@ private:
} }
for (uint32_t i = 0; i < 3; i++) { for (uint32_t i = 0; i < 3; i++) {
IntegerEncodedValue val(eIntegerEncoding_Quint, nBitsPerValue); IntegerEncodedValue val(IntegerEncoding::Quint, nBitsPerValue);
val.m_BitValue = m[i]; val.m_BitValue = m[i];
val.m_QuintValue = q[i]; val.m_QuintValue = q[i];
result.push_back(val); result.push_back(val);
@ -859,12 +859,12 @@ static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* mode
switch (val.GetEncoding()) { switch (val.GetEncoding()) {
// Replicate bits // Replicate bits
case eIntegerEncoding_JustBits: case IntegerEncoding::JustBits:
out[outIdx++] = Replicate(bitval, bitlen, 8); out[outIdx++] = Replicate(bitval, bitlen, 8);
break; break;
// Use algorithm in C.2.13 // Use algorithm in C.2.13
case eIntegerEncoding_Trit: { case IntegerEncoding::Trit: {
D = val.GetTritValue(); D = val.GetTritValue();
@ -912,10 +912,10 @@ static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* mode
assert(!"Unsupported trit encoding for color values!"); assert(!"Unsupported trit encoding for color values!");
break; break;
} // switch(bitlen) } // switch(bitlen)
} // case eIntegerEncoding_Trit } // case IntegerEncoding::Trit
break; break;
case eIntegerEncoding_Quint: { case IntegerEncoding::Quint: {
D = val.GetQuintValue(); D = val.GetQuintValue();
@ -956,11 +956,11 @@ static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* mode
assert(!"Unsupported quint encoding for color values!"); assert(!"Unsupported quint encoding for color values!");
break; break;
} // switch(bitlen) } // switch(bitlen)
} // case eIntegerEncoding_Quint } // case IntegerEncoding::Quint
break; break;
} // switch(val.GetEncoding()) } // switch(val.GetEncoding())
if (val.GetEncoding() != eIntegerEncoding_JustBits) { if (val.GetEncoding() != IntegerEncoding::JustBits) {
uint32_t T = D * C + B; uint32_t T = D * C + B;
T ^= A; T ^= A;
T = (A & 0x80) | (T >> 2); T = (A & 0x80) | (T >> 2);
@ -983,11 +983,11 @@ static uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
uint32_t result = 0; uint32_t result = 0;
switch (val.GetEncoding()) { switch (val.GetEncoding()) {
case eIntegerEncoding_JustBits: case IntegerEncoding::JustBits:
result = Replicate(bitval, bitlen, 6); result = Replicate(bitval, bitlen, 6);
break; break;
case eIntegerEncoding_Trit: { case IntegerEncoding::Trit: {
D = val.GetTritValue(); D = val.GetTritValue();
assert(D < 3); assert(D < 3);
@ -1019,7 +1019,7 @@ static uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
} }
} break; } break;
case eIntegerEncoding_Quint: { case IntegerEncoding::Quint: {
D = val.GetQuintValue(); D = val.GetQuintValue();
assert(D < 5); assert(D < 5);
@ -1046,7 +1046,7 @@ static uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
} break; } break;
} }
if (val.GetEncoding() != eIntegerEncoding_JustBits && bitlen > 0) { if (val.GetEncoding() != IntegerEncoding::JustBits && bitlen > 0) {
// Decode the value... // Decode the value...
result = D * C + B; result = D * C + B;
result ^= A; result ^= A;