From 0ad3c031f4f0e1db16e271ed1329e2c4bad33e10 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Sat, 23 Feb 2019 22:45:47 -0300 Subject: gl_rasterizer_cache: Move format conversion to its own file --- src/video_core/textures/astc.cpp | 80 ++++++++++++++++++++++++---------------- 1 file changed, 48 insertions(+), 32 deletions(-) (limited to 'src/video_core/textures/astc.cpp') diff --git a/src/video_core/textures/astc.cpp b/src/video_core/textures/astc.cpp index bc50a4876..b508d64e9 100644 --- a/src/video_core/textures/astc.cpp +++ b/src/video_core/textures/astc.cpp @@ -23,28 +23,12 @@ #include "video_core/textures/astc.h" -class BitStream { +class InputBitStream { public: - explicit BitStream(unsigned char* ptr, int nBits = 0, int start_offset = 0) + explicit InputBitStream(const 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; - } - - void WriteBitsR(unsigned int val, unsigned int nBits) { - for (unsigned int i = 0; i < nBits; i++) { - WriteBit((val >> (nBits - i - 1)) & 1); - } - } - - void WriteBits(unsigned int val, unsigned int nBits) { - for (unsigned int i = 0; i < nBits; i++) { - WriteBit((val >> i) & 1); - } - } + ~InputBitStream() = default; int GetBitsRead() const { return m_BitsRead; @@ -70,6 +54,38 @@ public: return ret; } +private: + const int m_NumBits; + const unsigned char* m_CurByte; + int m_NextBit = 0; + int m_BitsRead = 0; + + bool done = false; +}; + +class OutputBitStream { +public: + explicit OutputBitStream(unsigned char* ptr, int nBits = 0, int start_offset = 0) + : m_NumBits(nBits), m_CurByte(ptr), m_NextBit(start_offset % 8) {} + + ~OutputBitStream() = default; + + int GetBitsWritten() const { + return m_BitsWritten; + } + + void WriteBitsR(unsigned int val, unsigned int nBits) { + for (unsigned int i = 0; i < nBits; i++) { + WriteBit((val >> (nBits - i - 1)) & 1); + } + } + + void WriteBits(unsigned int val, unsigned int nBits) { + for (unsigned int i = 0; i < nBits; i++) { + WriteBit((val >> i) & 1); + } + } + private: void WriteBit(int b) { @@ -238,8 +254,8 @@ public: // Fills result with the values that are encoded in the given // bitstream. We must know beforehand what the maximum possible // value is, and how many values we're decoding. - static void DecodeIntegerSequence(std::vector& result, BitStream& bits, - uint32_t maxRange, uint32_t nValues) { + static void DecodeIntegerSequence(std::vector& result, + InputBitStream& bits, uint32_t maxRange, uint32_t nValues) { // Determine encoding parameters IntegerEncodedValue val = IntegerEncodedValue::CreateEncoding(maxRange); @@ -267,7 +283,7 @@ public: } private: - static void DecodeTritBlock(BitStream& bits, std::vector& result, + static void DecodeTritBlock(InputBitStream& bits, std::vector& result, uint32_t nBitsPerValue) { // Implement the algorithm in section C.2.12 uint32_t m[5]; @@ -327,7 +343,7 @@ private: } } - static void DecodeQuintBlock(BitStream& bits, std::vector& result, + static void DecodeQuintBlock(InputBitStream& bits, std::vector& result, uint32_t nBitsPerValue) { // Implement the algorithm in section C.2.12 uint32_t m[3]; @@ -406,7 +422,7 @@ struct TexelWeightParams { } }; -static TexelWeightParams DecodeBlockInfo(BitStream& strm) { +static TexelWeightParams DecodeBlockInfo(InputBitStream& strm) { TexelWeightParams params; // Read the entire block mode all at once @@ -605,7 +621,7 @@ static TexelWeightParams DecodeBlockInfo(BitStream& strm) { return params; } -static void FillVoidExtentLDR(BitStream& strm, uint32_t* const outBuf, uint32_t blockWidth, +static void FillVoidExtentLDR(InputBitStream& 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) { @@ -821,7 +837,7 @@ static void DecodeColorValues(uint32_t* out, uint8_t* data, const uint32_t* mode // We now have enough to decode our integer sequence. std::vector decodedColorValues; - BitStream colorStream(data); + InputBitStream colorStream(data); IntegerEncodedValue::DecodeIntegerSequence(decodedColorValues, colorStream, range, nValues); // Once we have the decoded values, we need to dequantize them to the 0-255 range @@ -1365,9 +1381,9 @@ static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const uint32_t*& colorValue #undef READ_INT_VALUES } -static void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth, +static void DecompressBlock(const uint8_t inBuf[16], const uint32_t blockWidth, const uint32_t blockHeight, uint32_t* outBuf) { - BitStream strm(inBuf); + InputBitStream strm(inBuf); TexelWeightParams weightParams = DecodeBlockInfo(strm); // Was there an error? @@ -1421,7 +1437,7 @@ static void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth, // Define color data. uint8_t colorEndpointData[16]; memset(colorEndpointData, 0, sizeof(colorEndpointData)); - BitStream colorEndpointStream(colorEndpointData, 16 * 8, 0); + OutputBitStream colorEndpointStream(colorEndpointData, 16 * 8, 0); // Read extra config data... uint32_t baseCEM = 0; @@ -1549,7 +1565,7 @@ static void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth, memset(texelWeightData + clearByteStart, 0, 16 - clearByteStart); std::vector texelWeightValues; - BitStream weightStream(texelWeightData); + InputBitStream weightStream(texelWeightData); IntegerEncodedValue::DecodeIntegerSequence(texelWeightValues, weightStream, weightParams.m_MaxWeight, @@ -1597,7 +1613,7 @@ static void DecompressBlock(uint8_t inBuf[16], const uint32_t blockWidth, namespace Tegra::Texture::ASTC { -std::vector Decompress(std::vector& data, uint32_t width, uint32_t height, +std::vector Decompress(const uint8_t* data, uint32_t width, uint32_t height, uint32_t depth, uint32_t block_width, uint32_t block_height) { uint32_t blockIdx = 0; std::vector outData(height * width * depth * 4); @@ -1605,7 +1621,7 @@ std::vector Decompress(std::vector& data, uint32_t width, uint for (uint32_t j = 0; j < height; j += block_height) { for (uint32_t i = 0; i < width; i += block_width) { - uint8_t* blockPtr = data.data() + blockIdx * 16; + const uint8_t* blockPtr = data + blockIdx * 16; // Blocks can be at most 12x12 uint32_t uncompData[144]; -- cgit v1.2.3