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Merge pull request #678 from lioncash/astc

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astc: Minor changes
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bunnei 2018-07-17 22:06:20 -07:00 committed by GitHub
commit b87a71b3fe
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1 changed files with 59 additions and 77 deletions
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128
src/video_core/textures/astc.cpp
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@ -25,16 +25,15 @@
class BitStream { class BitStream {
public: public:
BitStream(unsigned char* ptr, int nBits = 0, int start_offset = 0) explicit BitStream(unsigned char* ptr, int nBits = 0, int start_offset = 0)
: m_BitsWritten(0), m_BitsRead(0), m_NumBits(nBits), m_CurByte(ptr), : m_NumBits(nBits), m_CurByte(ptr), m_NextBit(start_offset % 8) {}
m_NextBit(start_offset % 8), done(false) {}
~BitStream() = default;
int GetBitsWritten() const { int GetBitsWritten() const {
return m_BitsWritten; return m_BitsWritten;
} }
~BitStream() {}
void WriteBitsR(unsigned int val, unsigned int nBits) { void WriteBitsR(unsigned int val, unsigned int nBits) {
for (unsigned int i = 0; i < nBits; i++) { for (unsigned int i = 0; i < nBits; i++) {
WriteBit((val >> (nBits - i - 1)) & 1); WriteBit((val >> (nBits - i - 1)) & 1);
@ -95,33 +94,28 @@ private:
done = done || ++m_BitsWritten >= m_NumBits; done = done || ++m_BitsWritten >= m_NumBits;
} }
int m_BitsWritten; int m_BitsWritten = 0;
const int m_NumBits; const int m_NumBits;
unsigned char* m_CurByte; unsigned char* m_CurByte;
int m_NextBit; int m_NextBit = 0;
int m_BitsRead; int m_BitsRead = 0;
bool done; bool done = false;
}; };
template <typename IntType> template <typename IntType>
class Bits { class Bits {
private:
const IntType& m_Bits;
// Don't copy
Bits() {}
Bits(const Bits&) {}
Bits& operator=(const Bits&) {}
public: public:
explicit Bits(IntType& v) : m_Bits(v) {} explicit Bits(const IntType& v) : m_Bits(v) {}
uint8_t operator[](uint32_t bitPos) { Bits(const Bits&) = delete;
Bits& operator=(const Bits&) = delete;
uint8_t operator[](uint32_t bitPos) const {
return static_cast<uint8_t>((m_Bits >> bitPos) & 1); return static_cast<uint8_t>((m_Bits >> bitPos) & 1);
} }
IntType operator()(uint32_t start, uint32_t end) { IntType operator()(uint32_t start, uint32_t end) const {
if (start == end) { if (start == end) {
return (*this)[start]; return (*this)[start];
} else if (start > end) { } else if (start > end) {
@ -133,6 +127,9 @@ public:
uint64_t mask = (1 << (end - start + 1)) - 1; uint64_t mask = (1 << (end - start + 1)) - 1;
return (m_Bits >> start) & mask; return (m_Bits >> start) & mask;
} }
private:
const IntType& m_Bits;
}; };
enum EIntegerEncoding { eIntegerEncoding_JustBits, eIntegerEncoding_Quint, eIntegerEncoding_Trit }; enum EIntegerEncoding { eIntegerEncoding_JustBits, eIntegerEncoding_Quint, eIntegerEncoding_Trit };
@ -186,12 +183,12 @@ public:
m_QuintValue = val; m_QuintValue = val;
} }
bool MatchesEncoding(const IntegerEncodedValue& other) { bool MatchesEncoding(const IntegerEncodedValue& other) const {
return m_Encoding == other.m_Encoding && m_NumBits == other.m_NumBits; return m_Encoding == other.m_Encoding && m_NumBits == other.m_NumBits;
} }
// 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) { 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 == eIntegerEncoding_Trit) {
totalBits += (nVals * 8 + 4) / 5; totalBits += (nVals * 8 + 4) / 5;
@ -382,19 +379,15 @@ private:
namespace ASTCC { namespace ASTCC {
struct TexelWeightParams { struct TexelWeightParams {
uint32_t m_Width; uint32_t m_Width = 0;
uint32_t m_Height; uint32_t m_Height = 0;
bool m_bDualPlane; bool m_bDualPlane = false;
uint32_t m_MaxWeight; uint32_t m_MaxWeight = 0;
bool m_bError; bool m_bError = false;
bool m_bVoidExtentLDR; bool m_bVoidExtentLDR = false;
bool m_bVoidExtentHDR; bool m_bVoidExtentHDR = false;
TexelWeightParams() { uint32_t GetPackedBitSize() const {
memset(this, 0, sizeof(*this));
}
uint32_t GetPackedBitSize() {
// How many indices do we have? // How many indices do we have?
uint32_t nIdxs = m_Height * m_Width; uint32_t nIdxs = m_Height * m_Width;
if (m_bDualPlane) { if (m_bDualPlane) {
@ -413,7 +406,7 @@ struct TexelWeightParams {
} }
}; };
TexelWeightParams DecodeBlockInfo(BitStream& strm) { static TexelWeightParams DecodeBlockInfo(BitStream& strm) {
TexelWeightParams params; TexelWeightParams params;
// Read the entire block mode all at once // Read the entire block mode all at once
@ -612,7 +605,7 @@ TexelWeightParams DecodeBlockInfo(BitStream& strm) {
return params; return params;
} }
void FillVoidExtentLDR(BitStream& strm, uint32_t* const outBuf, uint32_t blockWidth, static void FillVoidExtentLDR(BitStream& strm, uint32_t* const outBuf, uint32_t blockWidth,
uint32_t blockHeight) { uint32_t blockHeight) {
// Don't actually care about the void extent, just read the bits... // Don't actually care about the void extent, just read the bits...
for (int i = 0; i < 4; ++i) { for (int i = 0; i < 4; ++i) {
@ -628,23 +621,25 @@ void FillVoidExtentLDR(BitStream& strm, uint32_t* const outBuf, uint32_t blockWi
uint32_t rgba = (r >> 8) | (g & 0xFF00) | (static_cast<uint32_t>(b) & 0xFF00) << 8 | uint32_t rgba = (r >> 8) | (g & 0xFF00) | (static_cast<uint32_t>(b) & 0xFF00) << 8 |
(static_cast<uint32_t>(a) & 0xFF00) << 16; (static_cast<uint32_t>(a) & 0xFF00) << 16;
for (uint32_t j = 0; j < blockHeight; j++) for (uint32_t j = 0; j < blockHeight; j++) {
for (uint32_t i = 0; i < blockWidth; i++) { for (uint32_t i = 0; i < blockWidth; i++) {
outBuf[j * blockWidth + i] = rgba; outBuf[j * blockWidth + i] = rgba;
} }
} }
}
void FillError(uint32_t* outBuf, uint32_t blockWidth, uint32_t blockHeight) { static void FillError(uint32_t* outBuf, uint32_t blockWidth, uint32_t blockHeight) {
for (uint32_t j = 0; j < blockHeight; j++) for (uint32_t j = 0; j < blockHeight; j++) {
for (uint32_t i = 0; i < blockWidth; i++) { for (uint32_t i = 0; i < blockWidth; i++) {
outBuf[j * blockWidth + i] = 0xFFFF00FF; outBuf[j * blockWidth + i] = 0xFFFF00FF;
} }
} }
}
// Replicates low numBits such that [(toBit - 1):(toBit - 1 - fromBit)] // Replicates low numBits such that [(toBit - 1):(toBit - 1 - fromBit)]
// is the same as [(numBits - 1):0] and repeats all the way down. // is the same as [(numBits - 1):0] and repeats all the way down.
template <typename IntType> template <typename IntType>
IntType Replicate(const IntType& val, uint32_t numBits, uint32_t toBit) { static IntType Replicate(const IntType& val, uint32_t numBits, uint32_t toBit) {
if (numBits == 0) if (numBits == 0)
return 0; return 0;
if (toBit == 0) if (toBit == 0)
@ -668,27 +663,15 @@ IntType Replicate(const IntType& val, uint32_t numBits, uint32_t toBit) {
class Pixel { class Pixel {
protected: protected:
typedef int16_t ChannelType; using ChannelType = int16_t;
uint8_t m_BitDepth[4]; uint8_t m_BitDepth[4] = {8, 8, 8, 8};
int16_t color[4]; int16_t color[4] = {};
public: public:
Pixel() { Pixel() = default;
for (int i = 0; i < 4; i++) { Pixel(ChannelType a, ChannelType r, ChannelType g, ChannelType b, unsigned bitDepth = 8)
m_BitDepth[i] = 8; : m_BitDepth{uint8_t(bitDepth), uint8_t(bitDepth), uint8_t(bitDepth), uint8_t(bitDepth)},
color[i] = 0; color{a, r, g, b} {}
}
}
Pixel(ChannelType a, ChannelType r, ChannelType g, ChannelType b, unsigned bitDepth = 8) {
for (int i = 0; i < 4; i++)
m_BitDepth[i] = bitDepth;
color[0] = a;
color[1] = r;
color[2] = g;
color[3] = b;
}
// Changes the depth of each pixel. This scales the values to // Changes the depth of each pixel. This scales the values to
// the appropriate bit depth by either truncating the least // the appropriate bit depth by either truncating the least
@ -807,8 +790,8 @@ public:
} }
}; };
void DecodeColorValues(uint32_t* out, uint8_t* data, uint32_t* modes, const uint32_t nPartitions, static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* modes,
const uint32_t nBitsForColorData) { const uint32_t nPartitions, const uint32_t nBitsForColorData) {
// First figure out how many color values we have // First figure out how many color values we have
uint32_t nValues = 0; uint32_t nValues = 0;
for (uint32_t i = 0; i < nPartitions; i++) { for (uint32_t i = 0; i < nPartitions; i++) {
@ -844,8 +827,7 @@ void DecodeColorValues(uint32_t* out, uint8_t* data, uint32_t* modes, const uint
// Once we have the decoded values, we need to dequantize them to the 0-255 range // Once we have the decoded values, we need to dequantize them to the 0-255 range
// This procedure is outlined in ASTC spec C.2.13 // This procedure is outlined in ASTC spec C.2.13
uint32_t outIdx = 0; uint32_t outIdx = 0;
std::vector<IntegerEncodedValue>::const_iterator itr; for (auto itr = decodedColorValues.begin(); itr != decodedColorValues.end(); ++itr) {
for (itr = decodedColorValues.begin(); itr != decodedColorValues.end(); itr++) {
// Have we already decoded all that we need? // Have we already decoded all that we need?
if (outIdx >= nValues) { if (outIdx >= nValues) {
break; break;
@ -978,7 +960,7 @@ void DecodeColorValues(uint32_t* out, uint8_t* data, uint32_t* modes, const uint
} }
} }
uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) { static uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
uint32_t bitval = val.GetBitValue(); uint32_t bitval = val.GetBitValue();
uint32_t bitlen = val.BaseBitLength(); uint32_t bitlen = val.BaseBitLength();
@ -1067,17 +1049,18 @@ uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
return result; return result;
} }
void UnquantizeTexelWeights(uint32_t out[2][144], std::vector<IntegerEncodedValue>& weights, static void UnquantizeTexelWeights(uint32_t out[2][144],
const std::vector<IntegerEncodedValue>& weights,
const TexelWeightParams& params, const uint32_t blockWidth, const TexelWeightParams& params, const uint32_t blockWidth,
const uint32_t blockHeight) { const uint32_t blockHeight) {
uint32_t weightIdx = 0; uint32_t weightIdx = 0;
uint32_t unquantized[2][144]; uint32_t unquantized[2][144];
std::vector<IntegerEncodedValue>::const_iterator itr;
for (itr = weights.begin(); itr != weights.end(); itr++) { for (auto itr = weights.begin(); itr != weights.end(); ++itr) {
unquantized[0][weightIdx] = UnquantizeTexelWeight(*itr); unquantized[0][weightIdx] = UnquantizeTexelWeight(*itr);
if (params.m_bDualPlane) { if (params.m_bDualPlane) {
itr++; ++itr;
unquantized[1][weightIdx] = UnquantizeTexelWeight(*itr); unquantized[1][weightIdx] = UnquantizeTexelWeight(*itr);
if (itr == weights.end()) { if (itr == weights.end()) {
break; break;
@ -1261,7 +1244,7 @@ static inline uint32_t Select2DPartition(int32_t seed, int32_t x, int32_t y, int
} }
// Section C.2.14 // Section C.2.14
void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const uint32_t*& colorValues, static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const uint32_t*& colorValues,
uint32_t colorEndpointMode) { uint32_t colorEndpointMode) {
#define READ_UINT_VALUES(N) \ #define READ_UINT_VALUES(N) \
uint32_t v[N]; \ uint32_t v[N]; \
@ -1382,8 +1365,8 @@ void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const uint32_t*& colorValues,
#undef READ_INT_VALUES #undef READ_INT_VALUES
} }
void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth, const uint32_t blockHeight, static void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth,
uint32_t* outBuf) { const uint32_t blockHeight, uint32_t* outBuf) {
BitStream strm(inBuf); BitStream strm(inBuf);
TexelWeightParams weightParams = DecodeBlockInfo(strm); TexelWeightParams weightParams = DecodeBlockInfo(strm);
@ -1617,8 +1600,7 @@ namespace Tegra::Texture::ASTC {
std::vector<uint8_t> Decompress(std::vector<uint8_t>& data, uint32_t width, uint32_t height, std::vector<uint8_t> Decompress(std::vector<uint8_t>& data, uint32_t width, uint32_t height,
uint32_t block_width, uint32_t block_height) { uint32_t block_width, uint32_t block_height) {
uint32_t blockIdx = 0; uint32_t blockIdx = 0;
std::vector<uint8_t> outData; std::vector<uint8_t> outData(height * width * 4);
outData.resize(height * width * 4);
for (uint32_t j = 0; j < height; j += block_height) { for (uint32_t j = 0; j < height; j += block_height) {
for (uint32_t i = 0; i < width; i += block_width) { for (uint32_t i = 0; i < width; i += block_width) {