From 15c0c213b1efb63f1d6f4900409fca8c8984e973 Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Sun, 4 Jul 2021 22:07:53 -0400 Subject: astc.h: Move data to cpp implementation Moves leftover values that are no longer used by the gpu decoder back to the cpp implementation. --- src/video_core/textures/astc.cpp | 86 +++++++++++++++++++++++++++++----------- src/video_core/textures/astc.h | 41 ------------------- 2 files changed, 63 insertions(+), 64 deletions(-) (limited to 'src/video_core/textures') diff --git a/src/video_core/textures/astc.cpp b/src/video_core/textures/astc.cpp index 3ab500760..26c19d75b 100644 --- a/src/video_core/textures/astc.cpp +++ b/src/video_core/textures/astc.cpp @@ -521,35 +521,41 @@ static TexelWeightParams DecodeBlockInfo(InputBitStream& strm) { return params; } -static void FillVoidExtentLDR(InputBitStream& strm, std::span outBuf, u32 blockWidth, - u32 blockHeight) { - // Don't actually care about the void extent, just read the bits... - for (s32 i = 0; i < 4; ++i) { - strm.ReadBits<13>(); +// Replicates low num_bits such that [(to_bit - 1):(to_bit - 1 - from_bit)] +// is the same as [(num_bits - 1):0] and repeats all the way down. +template +static constexpr IntType Replicate(IntType val, u32 num_bits, u32 to_bit) { + if (num_bits == 0 || to_bit == 0) { + return 0; } - - // Decode the RGBA components and renormalize them to the range [0, 255] - u16 r = static_cast(strm.ReadBits<16>()); - u16 g = static_cast(strm.ReadBits<16>()); - u16 b = static_cast(strm.ReadBits<16>()); - u16 a = static_cast(strm.ReadBits<16>()); - - u32 rgba = (r >> 8) | (g & 0xFF00) | (static_cast(b) & 0xFF00) << 8 | - (static_cast(a) & 0xFF00) << 16; - - for (u32 j = 0; j < blockHeight; j++) { - for (u32 i = 0; i < blockWidth; i++) { - outBuf[j * blockWidth + i] = rgba; + const IntType v = val & static_cast((1 << num_bits) - 1); + IntType res = v; + u32 reslen = num_bits; + while (reslen < to_bit) { + u32 comp = 0; + if (num_bits > to_bit - reslen) { + u32 newshift = to_bit - reslen; + comp = num_bits - newshift; + num_bits = newshift; } + res = static_cast(res << num_bits); + res = static_cast(res | (v >> comp)); + reslen += num_bits; } + return res; } -static void FillError(std::span outBuf, u32 blockWidth, u32 blockHeight) { - for (u32 j = 0; j < blockHeight; j++) { - for (u32 i = 0; i < blockWidth; i++) { - outBuf[j * blockWidth + i] = 0xFFFF00FF; - } +static constexpr std::size_t NumReplicateEntries(u32 num_bits) { + return std::size_t(1) << num_bits; +} + +template +static constexpr auto MakeReplicateTable() { + std::array table{}; + for (IntType value = 0; value < static_cast(std::size(table)); ++value) { + table[value] = Replicate(value, num_bits, to_bit); } + return table; } static constexpr auto REPLICATE_BYTE_TO_16_TABLE = MakeReplicateTable(); @@ -572,6 +578,9 @@ static constexpr auto REPLICATE_2_BIT_TO_8_TABLE = MakeReplicateTable static constexpr auto REPLICATE_3_BIT_TO_8_TABLE = MakeReplicateTable(); static constexpr auto REPLICATE_4_BIT_TO_8_TABLE = MakeReplicateTable(); static constexpr auto REPLICATE_5_BIT_TO_8_TABLE = MakeReplicateTable(); +static constexpr auto REPLICATE_6_BIT_TO_8_TABLE = MakeReplicateTable(); +static constexpr auto REPLICATE_7_BIT_TO_8_TABLE = MakeReplicateTable(); +static constexpr auto REPLICATE_8_BIT_TO_8_TABLE = MakeReplicateTable(); /// Use a precompiled table with the most common usages, if it's not in the expected range, fallback /// to the runtime implementation static constexpr u32 FastReplicateTo8(u32 value, u32 num_bits) { @@ -1316,6 +1325,37 @@ static void ComputeEndpoints(Pixel& ep1, Pixel& ep2, const u32*& colorValues, #undef READ_INT_VALUES } +static void FillVoidExtentLDR(InputBitStream& strm, std::span outBuf, u32 blockWidth, + u32 blockHeight) { + // Don't actually care about the void extent, just read the bits... + for (s32 i = 0; i < 4; ++i) { + strm.ReadBits<13>(); + } + + // Decode the RGBA components and renormalize them to the range [0, 255] + u16 r = static_cast(strm.ReadBits<16>()); + u16 g = static_cast(strm.ReadBits<16>()); + u16 b = static_cast(strm.ReadBits<16>()); + u16 a = static_cast(strm.ReadBits<16>()); + + u32 rgba = (r >> 8) | (g & 0xFF00) | (static_cast(b) & 0xFF00) << 8 | + (static_cast(a) & 0xFF00) << 16; + + for (u32 j = 0; j < blockHeight; j++) { + for (u32 i = 0; i < blockWidth; i++) { + outBuf[j * blockWidth + i] = rgba; + } + } +} + +static void FillError(std::span outBuf, u32 blockWidth, u32 blockHeight) { + for (u32 j = 0; j < blockHeight; j++) { + for (u32 i = 0; i < blockWidth; i++) { + outBuf[j * blockWidth + i] = 0xFFFF00FF; + } + } +} + static void DecompressBlock(std::span inBuf, const u32 blockWidth, const u32 blockHeight, std::span outBuf) { InputBitStream strm(inBuf); diff --git a/src/video_core/textures/astc.h b/src/video_core/textures/astc.h index 0229ae122..9e148afc4 100644 --- a/src/video_core/textures/astc.h +++ b/src/video_core/textures/astc.h @@ -79,47 +79,6 @@ constexpr std::array MakeEncodedValues() { constexpr std::array ASTC_ENCODINGS_VALUES = MakeEncodedValues(); -// Replicates low num_bits such that [(to_bit - 1):(to_bit - 1 - from_bit)] -// is the same as [(num_bits - 1):0] and repeats all the way down. -template -constexpr IntType Replicate(IntType val, u32 num_bits, u32 to_bit) { - if (num_bits == 0 || to_bit == 0) { - return 0; - } - const IntType v = val & static_cast((1 << num_bits) - 1); - IntType res = v; - u32 reslen = num_bits; - while (reslen < to_bit) { - u32 comp = 0; - if (num_bits > to_bit - reslen) { - u32 newshift = to_bit - reslen; - comp = num_bits - newshift; - num_bits = newshift; - } - res = static_cast(res << num_bits); - res = static_cast(res | (v >> comp)); - reslen += num_bits; - } - return res; -} - -constexpr std::size_t NumReplicateEntries(u32 num_bits) { - return std::size_t(1) << num_bits; -} - -template -constexpr auto MakeReplicateTable() { - std::array table{}; - for (IntType value = 0; value < static_cast(std::size(table)); ++value) { - table[value] = Replicate(value, num_bits, to_bit); - } - return table; -} - -constexpr auto REPLICATE_6_BIT_TO_8_TABLE = MakeReplicateTable(); -constexpr auto REPLICATE_7_BIT_TO_8_TABLE = MakeReplicateTable(); -constexpr auto REPLICATE_8_BIT_TO_8_TABLE = MakeReplicateTable(); - void Decompress(std::span data, uint32_t width, uint32_t height, uint32_t depth, uint32_t block_width, uint32_t block_height, std::span output); 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