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-rw-r--r--src/video_core/textures/astc.cpp86
-rw-r--r--src/video_core/textures/astc.h41
2 files changed, 63 insertions, 64 deletions
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<u32> 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 <typename IntType>
+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<u16>(strm.ReadBits<16>());
- u16 g = static_cast<u16>(strm.ReadBits<16>());
- u16 b = static_cast<u16>(strm.ReadBits<16>());
- u16 a = static_cast<u16>(strm.ReadBits<16>());
-
- u32 rgba = (r >> 8) | (g & 0xFF00) | (static_cast<u32>(b) & 0xFF00) << 8 |
- (static_cast<u32>(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<IntType>((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<IntType>(res << num_bits);
+ res = static_cast<IntType>(res | (v >> comp));
+ reslen += num_bits;
}
+ return res;
}
-static void FillError(std::span<u32> 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 <typename IntType, u32 num_bits, u32 to_bit>
+static constexpr auto MakeReplicateTable() {
+ std::array<IntType, NumReplicateEntries(num_bits)> table{};
+ for (IntType value = 0; value < static_cast<IntType>(std::size(table)); ++value) {
+ table[value] = Replicate(value, num_bits, to_bit);
}
+ return table;
}
static constexpr auto REPLICATE_BYTE_TO_16_TABLE = MakeReplicateTable<u32, 8, 16>();
@@ -572,6 +578,9 @@ static constexpr auto REPLICATE_2_BIT_TO_8_TABLE = MakeReplicateTable<u32, 2, 8>
static constexpr auto REPLICATE_3_BIT_TO_8_TABLE = MakeReplicateTable<u32, 3, 8>();
static constexpr auto REPLICATE_4_BIT_TO_8_TABLE = MakeReplicateTable<u32, 4, 8>();
static constexpr auto REPLICATE_5_BIT_TO_8_TABLE = MakeReplicateTable<u32, 5, 8>();
+static constexpr auto REPLICATE_6_BIT_TO_8_TABLE = MakeReplicateTable<u32, 6, 8>();
+static constexpr auto REPLICATE_7_BIT_TO_8_TABLE = MakeReplicateTable<u32, 7, 8>();
+static constexpr auto REPLICATE_8_BIT_TO_8_TABLE = MakeReplicateTable<u32, 8, 8>();
/// 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<u32> 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<u16>(strm.ReadBits<16>());
+ u16 g = static_cast<u16>(strm.ReadBits<16>());
+ u16 b = static_cast<u16>(strm.ReadBits<16>());
+ u16 a = static_cast<u16>(strm.ReadBits<16>());
+
+ u32 rgba = (r >> 8) | (g & 0xFF00) | (static_cast<u32>(b) & 0xFF00) << 8 |
+ (static_cast<u32>(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<u32> 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<const u8, 16> inBuf, const u32 blockWidth,
const u32 blockHeight, std::span<u32, 12 * 12> 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<IntegerEncodedValue, 256> MakeEncodedValues() {
constexpr std::array<IntegerEncodedValue, 256> 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 <typename IntType>
-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<IntType>((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<IntType>(res << num_bits);
- res = static_cast<IntType>(res | (v >> comp));
- reslen += num_bits;
- }
- return res;
-}
-
-constexpr std::size_t NumReplicateEntries(u32 num_bits) {
- return std::size_t(1) << num_bits;
-}
-
-template <typename IntType, u32 num_bits, u32 to_bit>
-constexpr auto MakeReplicateTable() {
- std::array<IntType, NumReplicateEntries(num_bits)> table{};
- for (IntType value = 0; value < static_cast<IntType>(std::size(table)); ++value) {
- table[value] = Replicate(value, num_bits, to_bit);
- }
- return table;
-}
-
-constexpr auto REPLICATE_6_BIT_TO_8_TABLE = MakeReplicateTable<u32, 6, 8>();
-constexpr auto REPLICATE_7_BIT_TO_8_TABLE = MakeReplicateTable<u32, 7, 8>();
-constexpr auto REPLICATE_8_BIT_TO_8_TABLE = MakeReplicateTable<u32, 8, 8>();
-
void Decompress(std::span<const uint8_t> data, uint32_t width, uint32_t height, uint32_t depth,
uint32_t block_width, uint32_t block_height, std::span<uint8_t> output);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 04:54:32 +0100