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https://git.suyu.dev/suyu/suyu.git
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astc: Rename C types to common_types
This commit is contained in:
ReinUsesLisp
parent
835a3d09c6
commit
e7d97605e8
1 changed files with 78 additions and 79 deletions
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@ -17,7 +17,6 @@
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#include <algorithm>
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#include <cassert>
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#include <cstdint>
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#include <cstring>
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#include <vector>
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@ -40,18 +39,18 @@ constexpr u32 Popcnt(u32 n) {
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class InputBitStream {
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public:
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explicit InputBitStream(const unsigned char* ptr, int start_offset = 0)
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explicit InputBitStream(const u8* ptr, s32 start_offset = 0)
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: m_CurByte(ptr), m_NextBit(start_offset % 8) {}
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~InputBitStream() = default;
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int GetBitsRead() const {
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s32 GetBitsRead() const {
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return m_BitsRead;
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}
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int ReadBit() {
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s32 ReadBit() {
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int bit = *m_CurByte >> m_NextBit++;
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s32 bit = *m_CurByte >> m_NextBit++;
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while (m_NextBit >= 8) {
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m_NextBit -= 8;
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m_CurByte++;
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@ -61,57 +60,57 @@ public:
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return bit & 1;
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}
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unsigned int ReadBits(unsigned int nBits) {
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unsigned int ret = 0;
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for (unsigned int i = 0; i < nBits; i++) {
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u32 ReadBits(u32 nBits) {
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u32 ret = 0;
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for (u32 i = 0; i < nBits; i++) {
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ret |= (ReadBit() & 1) << i;
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}
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return ret;
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}
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private:
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const unsigned char* m_CurByte;
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int m_NextBit = 0;
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int m_BitsRead = 0;
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const u8* m_CurByte;
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s32 m_NextBit = 0;
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s32 m_BitsRead = 0;
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};
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class OutputBitStream {
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public:
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explicit OutputBitStream(unsigned char* ptr, int nBits = 0, int start_offset = 0)
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explicit OutputBitStream(u8* ptr, s32 nBits = 0, s32 start_offset = 0)
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: m_NumBits(nBits), m_CurByte(ptr), m_NextBit(start_offset % 8) {}
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~OutputBitStream() = default;
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int GetBitsWritten() const {
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s32 GetBitsWritten() const {
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return m_BitsWritten;
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}
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void WriteBitsR(unsigned int val, unsigned int nBits) {
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for (unsigned int i = 0; i < nBits; i++) {
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void WriteBitsR(u32 val, u32 nBits) {
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for (u32 i = 0; i < nBits; i++) {
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WriteBit((val >> (nBits - i - 1)) & 1);
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}
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}
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void WriteBits(unsigned int val, unsigned int nBits) {
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for (unsigned int i = 0; i < nBits; i++) {
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void WriteBits(u32 val, u32 nBits) {
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for (u32 i = 0; i < nBits; i++) {
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WriteBit((val >> i) & 1);
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}
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}
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private:
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void WriteBit(int b) {
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void WriteBit(s32 b) {
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if (done)
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return;
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const unsigned int mask = 1 << m_NextBit++;
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const u32 mask = 1 << m_NextBit++;
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// clear the bit
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*m_CurByte &= static_cast<unsigned char>(~mask);
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*m_CurByte &= static_cast<u8>(~mask);
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// Write the bit, if necessary
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if (b)
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*m_CurByte |= static_cast<unsigned char>(mask);
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*m_CurByte |= static_cast<u8>(mask);
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// Next byte?
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if (m_NextBit >= 8) {
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@ -122,10 +121,10 @@ private:
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done = done || ++m_BitsWritten >= m_NumBits;
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}
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int m_BitsWritten = 0;
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const int m_NumBits;
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unsigned char* m_CurByte;
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int m_NextBit = 0;
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s32 m_BitsWritten = 0;
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const s32 m_NumBits;
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u8* m_CurByte;
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s32 m_NextBit = 0;
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bool done = false;
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};
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@ -159,7 +158,7 @@ private:
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const IntType& m_Bits;
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};
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enum class IntegerEncoding { JustBits, Quint, Trit };
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enum class IntegerEncoding { JustBits, Qus32, Trit };
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class IntegerEncodedValue {
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private:
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@ -167,7 +166,7 @@ private:
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const u32 m_NumBits;
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u32 m_BitValue;
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union {
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u32 m_QuintValue;
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u32 m_Qus32Value;
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u32 m_TritValue;
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};
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@ -203,11 +202,11 @@ public:
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m_TritValue = val;
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}
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u32 GetQuintValue() const {
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return m_QuintValue;
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u32 GetQus32Value() const {
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return m_Qus32Value;
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}
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void SetQuintValue(u32 val) {
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m_QuintValue = val;
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void SetQus32Value(u32 val) {
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m_Qus32Value = val;
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}
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bool MatchesEncoding(const IntegerEncodedValue& other) const {
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@ -219,7 +218,7 @@ public:
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u32 totalBits = m_NumBits * nVals;
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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 == IntegerEncoding::Quint) {
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} else if (m_Encoding == IntegerEncoding::Qus32) {
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totalBits += (nVals * 7 + 2) / 3;
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}
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return totalBits;
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@ -243,10 +242,10 @@ public:
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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(IntegerEncoding::Quint, Popcnt(check / 5 - 1));
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return IntegerEncodedValue(IntegerEncoding::Qus32, 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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// Apparently it can't be represented with a bounded s32eger sequence...
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// just iterate.
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maxVal--;
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}
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@ -265,8 +264,8 @@ public:
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u32 nValsDecoded = 0;
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while (nValsDecoded < nValues) {
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switch (val.GetEncoding()) {
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case IntegerEncoding::Quint:
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DecodeQuintBlock(bits, result, val.BaseBitLength());
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case IntegerEncoding::Qus32:
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DecodeQus32Block(bits, result, val.BaseBitLength());
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nValsDecoded += 3;
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break;
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@ -345,7 +344,7 @@ private:
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}
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}
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static void DecodeQuintBlock(InputBitStream& bits, std::vector<IntegerEncodedValue>& result,
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static void DecodeQus32Block(InputBitStream& bits, std::vector<IntegerEncodedValue>& result,
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u32 nBitsPerValue) {
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// Implement the algorithm in section C.2.12
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u32 m[3];
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@ -386,9 +385,9 @@ private:
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}
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for (u32 i = 0; i < 3; i++) {
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IntegerEncodedValue val(IntegerEncoding::Quint, nBitsPerValue);
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IntegerEncodedValue val(IntegerEncoding::Qus32, nBitsPerValue);
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val.m_BitValue = m[i];
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val.m_QuintValue = q[i];
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val.m_Qus32Value = q[i];
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result.push_back(val);
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}
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}
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@ -626,7 +625,7 @@ static TexelWeightParams DecodeBlockInfo(InputBitStream& strm) {
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static void FillVoidExtentLDR(InputBitStream& strm, u32* const outBuf, u32 blockWidth,
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u32 blockHeight) {
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// Don't actually care about the void extent, just read the bits...
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for (int i = 0; i < 4; ++i) {
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for (s32 i = 0; i < 4; ++i) {
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strm.ReadBits(13);
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}
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@ -687,7 +686,7 @@ protected:
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public:
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Pixel() = default;
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Pixel(u32 a, u32 r, u32 g, u32 b, unsigned bitDepth = 8)
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Pixel(u32 a, u32 r, u32 g, u32 b, u32 bitDepth = 8)
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: m_BitDepth{u8(bitDepth), u8(bitDepth), u8(bitDepth), u8(bitDepth)},
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color{static_cast<ChannelType>(a), static_cast<ChannelType>(r),
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static_cast<ChannelType>(g), static_cast<ChannelType>(b)} {}
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@ -772,13 +771,13 @@ public:
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}
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void GetBitDepth(u8 (&outDepth)[4]) const {
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for (int i = 0; i < 4; i++) {
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for (s32 i = 0; i < 4; i++) {
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outDepth[i] = m_BitDepth[i];
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}
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}
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// Take all of the components, transform them to their 8-bit variants,
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// and then pack each channel into an R8G8B8A8 32-bit integer. We assume
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// and then pack each channel s32o an R8G8B8A8 32-bit s32eger. We assume
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// that the architecture is little-endian, so the alpha channel will end
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// up in the most-significant byte.
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u32 Pack() const {
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@ -838,7 +837,7 @@ static void DecodeColorValues(u32* out, u8* data, const u32* modes, const u32 nP
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}
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}
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// We now have enough to decode our integer sequence.
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// We now have enough to decode our s32eger sequence.
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std::vector<IntegerEncodedValue> decodedColorValues;
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InputBitStream colorStream(data);
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IntegerEncodedValue::DecodeIntegerSequence(decodedColorValues, colorStream, range, nValues);
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@ -920,9 +919,9 @@ static void DecodeColorValues(u32* out, u8* data, const u32* modes, const u32 nP
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} // case IntegerEncoding::Trit
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break;
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case IntegerEncoding::Quint: {
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case IntegerEncoding::Qus32: {
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D = val.GetQuintValue();
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D = val.GetQus32Value();
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switch (bitlen) {
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case 1: {
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@ -958,10 +957,10 @@ static void DecodeColorValues(u32* out, u8* data, const u32* modes, const u32 nP
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} break;
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default:
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assert(!"Unsupported quint encoding for color values!");
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assert(!"Unsupported qus32 encoding for color values!");
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break;
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} // switch(bitlen)
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} // case IntegerEncoding::Quint
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} // case IntegerEncoding::Qus32
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break;
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} // switch(val.GetEncoding())
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@ -1024,8 +1023,8 @@ static u32 UnquantizeTexelWeight(const IntegerEncodedValue& val) {
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}
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} break;
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case IntegerEncoding::Quint: {
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D = val.GetQuintValue();
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case IntegerEncoding::Qus32: {
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D = val.GetQus32Value();
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assert(D < 5);
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switch (bitlen) {
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@ -1045,7 +1044,7 @@ static u32 UnquantizeTexelWeight(const IntegerEncodedValue& val) {
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} break;
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default:
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assert(!"Invalid quint encoding for texel weight");
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assert(!"Invalid qus32 encoding for texel weight");
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break;
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}
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} break;
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@ -1260,8 +1259,8 @@ static inline u32 Select2DPartition(s32 seed, s32 x, s32 y, s32 partitionCount,
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}
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// Section C.2.14
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static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const u32*& colorValues,
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u32 colorEndpointMode) {
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static void ComputeEndpos32s(Pixel& ep1, Pixel& ep2, const u32*& colorValues,
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u32 colorEndpos32Mode) {
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#define READ_UINT_VALUES(N) \
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u32 v[N]; \
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for (u32 i = 0; i < N; i++) { \
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@ -1274,7 +1273,7 @@ static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const u32*& colorValues,
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v[i] = static_cast<s32>(*(colorValues++)); \
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}
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switch (colorEndpointMode) {
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switch (colorEndpos32Mode) {
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case 0: {
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READ_UINT_VALUES(2)
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ep1 = Pixel(0xFF, v[0], v[0], v[0]);
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@ -1373,7 +1372,7 @@ static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const u32*& colorValues,
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} break;
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default:
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assert(!"Unsupported color endpoint mode (is it HDR?)");
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assert(!"Unsupported color endpos32 mode (is it HDR?)");
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break;
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}
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@ -1426,23 +1425,23 @@ static void DecompressBlock(const u8 inBuf[16], const u32 blockWidth, const u32
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return;
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}
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// Based on the number of partitions, read the color endpoint mode for
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// Based on the number of partitions, read the color endpos32 mode for
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// each partition.
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// Determine partitions, partition index, and color endpoint modes
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// Determine partitions, partition index, and color endpos32 modes
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s32 planeIdx = -1;
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u32 partitionIndex;
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u32 colorEndpointMode[4] = {0, 0, 0, 0};
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u32 colorEndpos32Mode[4] = {0, 0, 0, 0};
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// Define color data.
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u8 colorEndpointData[16];
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memset(colorEndpointData, 0, sizeof(colorEndpointData));
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OutputBitStream colorEndpointStream(colorEndpointData, 16 * 8, 0);
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u8 colorEndpos32Data[16];
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memset(colorEndpos32Data, 0, sizeof(colorEndpos32Data));
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OutputBitStream colorEndpos32Stream(colorEndpos32Data, 16 * 8, 0);
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// Read extra config data...
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u32 baseCEM = 0;
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if (nPartitions == 1) {
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colorEndpointMode[0] = strm.ReadBits(4);
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colorEndpos32Mode[0] = strm.ReadBits(4);
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partitionIndex = 0;
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} else {
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partitionIndex = strm.ReadBits(10);
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@ -1450,7 +1449,7 @@ static void DecompressBlock(const u8 inBuf[16], const u32 blockWidth, const u32
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}
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u32 baseMode = (baseCEM & 3);
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// Remaining bits are color endpoint data...
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// Remaining bits are color endpos32 data...
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u32 nWeightBits = weightParams.GetPackedBitSize();
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s32 remainingBits = 128 - nWeightBits - strm.GetBitsRead();
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@ -1486,7 +1485,7 @@ static void DecompressBlock(const u8 inBuf[16], const u32 blockWidth, const u32
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while (remainingBits > 0) {
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u32 nb = std::min(remainingBits, 8);
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u32 b = strm.ReadBits(nb);
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colorEndpointStream.WriteBits(b, nb);
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colorEndpos32Stream.WriteBits(b, nb);
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remainingBits -= 8;
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}
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@ -1513,34 +1512,34 @@ static void DecompressBlock(const u8 inBuf[16], const u32 blockWidth, const u32
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}
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for (u32 i = 0; i < nPartitions; i++) {
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colorEndpointMode[i] = baseMode;
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colorEndpos32Mode[i] = baseMode;
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if (!(C[i]))
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colorEndpointMode[i] -= 1;
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colorEndpointMode[i] <<= 2;
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colorEndpointMode[i] |= M[i];
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colorEndpos32Mode[i] -= 1;
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colorEndpos32Mode[i] <<= 2;
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colorEndpos32Mode[i] |= M[i];
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}
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} else if (nPartitions > 1) {
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u32 CEM = baseCEM >> 2;
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for (u32 i = 0; i < nPartitions; i++) {
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colorEndpointMode[i] = CEM;
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colorEndpos32Mode[i] = CEM;
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}
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}
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// Make sure everything up till here is sane.
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for (u32 i = 0; i < nPartitions; i++) {
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assert(colorEndpointMode[i] < 16);
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assert(colorEndpos32Mode[i] < 16);
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}
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assert(strm.GetBitsRead() + weightParams.GetPackedBitSize() == 128);
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// Decode both color data and texel weight data
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u32 colorValues[32]; // Four values, two endpoints, four maximum paritions
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DecodeColorValues(colorValues, colorEndpointData, colorEndpointMode, nPartitions,
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u32 colorValues[32]; // Four values, two endpos32s, four maximum paritions
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DecodeColorValues(colorValues, colorEndpos32Data, colorEndpos32Mode, nPartitions,
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colorDataBits);
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Pixel endpoints[4][2];
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Pixel endpos32s[4][2];
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const u32* colorValuesPtr = colorValues;
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for (u32 i = 0; i < nPartitions; i++) {
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ComputeEndpoints(endpoints[i][0], endpoints[i][1], colorValuesPtr, colorEndpointMode[i]);
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ComputeEndpos32s(endpos32s[i][0], endpos32s[i][1], colorValuesPtr, colorEndpos32Mode[i]);
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}
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// Read the texel weight data..
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@ -1551,8 +1550,8 @@ static void DecompressBlock(const u8 inBuf[16], const u32 blockWidth, const u32
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for (u32 i = 0; i < 8; i++) {
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// Taken from http://graphics.stanford.edu/~seander/bithacks.html#ReverseByteWith64Bits
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#define REVERSE_BYTE(b) (((b)*0x80200802ULL) & 0x0884422110ULL) * 0x0101010101ULL >> 32
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unsigned char a = static_cast<unsigned char>(REVERSE_BYTE(texelWeightData[i]));
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unsigned char b = static_cast<unsigned char>(REVERSE_BYTE(texelWeightData[15 - i]));
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u8 a = static_cast<u8>(REVERSE_BYTE(texelWeightData[i]));
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u8 b = static_cast<u8>(REVERSE_BYTE(texelWeightData[15 - i]));
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#undef REVERSE_BYTE
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texelWeightData[i] = b;
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@ -1577,7 +1576,7 @@ static void DecompressBlock(const u8 inBuf[16], const u32 blockWidth, const u32
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u32 weights[2][144];
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UnquantizeTexelWeights(weights, texelWeightValues, weightParams, blockWidth, blockHeight);
|
||||
|
||||
// Now that we have endpoints and weights, we can interpolate and generate
|
||||
// Now that we have endpos32s and weights, we can s32erpolate and generate
|
||||
// the proper decoding...
|
||||
for (u32 j = 0; j < blockHeight; j++)
|
||||
for (u32 i = 0; i < blockWidth; i++) {
|
||||
|
|
@ -1587,9 +1586,9 @@ static void DecompressBlock(const u8 inBuf[16], const u32 blockWidth, const u32
|
|||
|
||||
Pixel p;
|
||||
for (u32 c = 0; c < 4; c++) {
|
||||
u32 C0 = endpoints[partition][0].Component(c);
|
||||
u32 C0 = endpos32s[partition][0].Component(c);
|
||||
C0 = Replicate(C0, 8, 16);
|
||||
u32 C1 = endpoints[partition][1].Component(c);
|
||||
u32 C1 = endpos32s[partition][1].Component(c);
|
||||
C1 = Replicate(C1, 8, 16);
|
||||
|
||||
u32 plane = 0;
|
||||
|
|
|
|||
Loading…
Reference in a new issue