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-rw-r--r--src/video_core/textures/astc.cpp138
1 files changed, 60 insertions, 78 deletions
diff --git a/src/video_core/textures/astc.cpp b/src/video_core/textures/astc.cpp
index 3c4ad1c9d..b1feacae9 100644
--- a/src/video_core/textures/astc.cpp
+++ b/src/video_core/textures/astc.cpp
@@ -25,16 +25,15 @@
class BitStream {
public:
- BitStream(unsigned char* ptr, int nBits = 0, int start_offset = 0)
- : m_BitsWritten(0), m_BitsRead(0), m_NumBits(nBits), m_CurByte(ptr),
- m_NextBit(start_offset % 8), done(false) {}
+ explicit BitStream(unsigned char* ptr, int nBits = 0, int start_offset = 0)
+ : m_NumBits(nBits), m_CurByte(ptr), m_NextBit(start_offset % 8) {}
+
+ ~BitStream() = default;
int GetBitsWritten() const {
return m_BitsWritten;
}
- ~BitStream() {}
-
void WriteBitsR(unsigned int val, unsigned int nBits) {
for (unsigned int i = 0; i < nBits; i++) {
WriteBit((val >> (nBits - i - 1)) & 1);
@@ -95,33 +94,28 @@ private:
done = done || ++m_BitsWritten >= m_NumBits;
}
- int m_BitsWritten;
+ int m_BitsWritten = 0;
const int m_NumBits;
unsigned char* m_CurByte;
- int m_NextBit;
- int m_BitsRead;
+ int m_NextBit = 0;
+ int m_BitsRead = 0;
- bool done;
+ bool done = false;
};
template <typename IntType>
class Bits {
-private:
- const IntType& m_Bits;
-
- // Don't copy
- Bits() {}
- Bits(const Bits&) {}
- Bits& operator=(const Bits&) {}
-
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);
}
- IntType operator()(uint32_t start, uint32_t end) {
+ IntType operator()(uint32_t start, uint32_t end) const {
if (start == end) {
return (*this)[start];
} else if (start > end) {
@@ -133,6 +127,9 @@ public:
uint64_t mask = (1 << (end - start + 1)) - 1;
return (m_Bits >> start) & mask;
}
+
+private:
+ const IntType& m_Bits;
};
enum EIntegerEncoding { eIntegerEncoding_JustBits, eIntegerEncoding_Quint, eIntegerEncoding_Trit };
@@ -186,12 +183,12 @@ public:
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;
}
// 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;
if (m_Encoding == eIntegerEncoding_Trit) {
totalBits += (nVals * 8 + 4) / 5;
@@ -382,19 +379,15 @@ private:
namespace ASTCC {
struct TexelWeightParams {
- uint32_t m_Width;
- uint32_t m_Height;
- bool m_bDualPlane;
- uint32_t m_MaxWeight;
- bool m_bError;
- bool m_bVoidExtentLDR;
- bool m_bVoidExtentHDR;
-
- TexelWeightParams() {
- memset(this, 0, sizeof(*this));
- }
-
- uint32_t GetPackedBitSize() {
+ uint32_t m_Width = 0;
+ uint32_t m_Height = 0;
+ bool m_bDualPlane = false;
+ uint32_t m_MaxWeight = 0;
+ bool m_bError = false;
+ bool m_bVoidExtentLDR = false;
+ bool m_bVoidExtentHDR = false;
+
+ uint32_t GetPackedBitSize() const {
// How many indices do we have?
uint32_t nIdxs = m_Height * m_Width;
if (m_bDualPlane) {
@@ -413,7 +406,7 @@ struct TexelWeightParams {
}
};
-TexelWeightParams DecodeBlockInfo(BitStream& strm) {
+static TexelWeightParams DecodeBlockInfo(BitStream& strm) {
TexelWeightParams params;
// Read the entire block mode all at once
@@ -612,8 +605,8 @@ TexelWeightParams DecodeBlockInfo(BitStream& strm) {
return params;
}
-void FillVoidExtentLDR(BitStream& strm, uint32_t* const outBuf, uint32_t blockWidth,
- uint32_t blockHeight) {
+static void FillVoidExtentLDR(BitStream& strm, uint32_t* const outBuf, uint32_t blockWidth,
+ uint32_t blockHeight) {
// Don't actually care about the void extent, just read the bits...
for (int i = 0; i < 4; ++i) {
strm.ReadBits(13);
@@ -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 |
(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++) {
outBuf[j * blockWidth + i] = rgba;
}
+ }
}
-void FillError(uint32_t* outBuf, uint32_t blockWidth, uint32_t blockHeight) {
- for (uint32_t j = 0; j < blockHeight; j++)
+static void FillError(uint32_t* outBuf, uint32_t blockWidth, uint32_t blockHeight) {
+ for (uint32_t j = 0; j < blockHeight; j++) {
for (uint32_t i = 0; i < blockWidth; i++) {
outBuf[j * blockWidth + i] = 0xFFFF00FF;
}
+ }
}
// Replicates low numBits such that [(toBit - 1):(toBit - 1 - fromBit)]
// is the same as [(numBits - 1):0] and repeats all the way down.
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)
return 0;
if (toBit == 0)
@@ -668,27 +663,15 @@ IntType Replicate(const IntType& val, uint32_t numBits, uint32_t toBit) {
class Pixel {
protected:
- typedef int16_t ChannelType;
- uint8_t m_BitDepth[4];
- int16_t color[4];
+ using ChannelType = int16_t;
+ uint8_t m_BitDepth[4] = {8, 8, 8, 8};
+ int16_t color[4] = {};
public:
- Pixel() {
- for (int i = 0; i < 4; i++) {
- m_BitDepth[i] = 8;
- color[i] = 0;
- }
- }
-
- 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;
- }
+ Pixel() = default;
+ Pixel(ChannelType a, ChannelType r, ChannelType g, ChannelType b, unsigned bitDepth = 8)
+ : m_BitDepth{uint8_t(bitDepth), uint8_t(bitDepth), uint8_t(bitDepth), uint8_t(bitDepth)},
+ color{a, r, g, b} {}
// Changes the depth of each pixel. This scales the values to
// 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,
- const uint32_t nBitsForColorData) {
+static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* modes,
+ const uint32_t nPartitions, const uint32_t nBitsForColorData) {
// First figure out how many color values we have
uint32_t nValues = 0;
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
// This procedure is outlined in ASTC spec C.2.13
uint32_t outIdx = 0;
- std::vector<IntegerEncodedValue>::const_iterator itr;
- for (itr = decodedColorValues.begin(); itr != decodedColorValues.end(); itr++) {
+ for (auto itr = decodedColorValues.begin(); itr != decodedColorValues.end(); ++itr) {
// Have we already decoded all that we need?
if (outIdx >= nValues) {
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 bitlen = val.BaseBitLength();
@@ -1067,17 +1049,18 @@ uint32_t UnquantizeTexelWeight(const IntegerEncodedValue& val) {
return result;
}
-void UnquantizeTexelWeights(uint32_t out[2][144], std::vector<IntegerEncodedValue>& weights,
- const TexelWeightParams& params, const uint32_t blockWidth,
- const uint32_t blockHeight) {
+static void UnquantizeTexelWeights(uint32_t out[2][144],
+ const std::vector<IntegerEncodedValue>& weights,
+ const TexelWeightParams& params, const uint32_t blockWidth,
+ const uint32_t blockHeight) {
uint32_t weightIdx = 0;
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);
if (params.m_bDualPlane) {
- itr++;
+ ++itr;
unquantized[1][weightIdx] = UnquantizeTexelWeight(*itr);
if (itr == weights.end()) {
break;
@@ -1261,8 +1244,8 @@ static inline uint32_t Select2DPartition(int32_t seed, int32_t x, int32_t y, int
}
// Section C.2.14
-void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const uint32_t*& colorValues,
- uint32_t colorEndpointMode) {
+static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const uint32_t*& colorValues,
+ uint32_t colorEndpointMode) {
#define READ_UINT_VALUES(N) \
uint32_t v[N]; \
for (uint32_t i = 0; i < N; i++) { \
@@ -1382,8 +1365,8 @@ void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const uint32_t*& colorValues,
#undef READ_INT_VALUES
}
-void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth, const uint32_t blockHeight,
- uint32_t* outBuf) {
+static void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth,
+ const uint32_t blockHeight, uint32_t* outBuf) {
BitStream strm(inBuf);
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,
uint32_t block_width, uint32_t block_height) {
uint32_t blockIdx = 0;
- std::vector<uint8_t> outData;
- outData.resize(height * width * 4);
+ std::vector<uint8_t> outData(height * width * 4);
for (uint32_t j = 0; j < height; j += block_height) {
for (uint32_t i = 0; i < width; i += block_width) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 20:26:56 +0100