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-rw-r--r--src/video_core/textures/astc.h70
1 files changed, 0 insertions, 70 deletions
diff --git a/src/video_core/textures/astc.h b/src/video_core/textures/astc.h
index 9e148afc4..14d2beec0 100644
--- a/src/video_core/textures/astc.h
+++ b/src/video_core/textures/astc.h
@@ -9,76 +9,6 @@
namespace Tegra::Texture::ASTC {
-enum class IntegerEncoding { JustBits, Quint, Trit };
-
-struct IntegerEncodedValue {
- constexpr IntegerEncodedValue() = default;
-
- constexpr IntegerEncodedValue(IntegerEncoding encoding_, u32 num_bits_)
- : encoding{encoding_}, num_bits{num_bits_} {}
-
- constexpr bool MatchesEncoding(const IntegerEncodedValue& other) const {
- return encoding == other.encoding && num_bits == other.num_bits;
- }
-
- // Returns the number of bits required to encode num_vals values.
- u32 GetBitLength(u32 num_vals) const {
- u32 total_bits = num_bits * num_vals;
- if (encoding == IntegerEncoding::Trit) {
- total_bits += (num_vals * 8 + 4) / 5;
- } else if (encoding == IntegerEncoding::Quint) {
- total_bits += (num_vals * 7 + 2) / 3;
- }
- return total_bits;
- }
-
- IntegerEncoding encoding{};
- u32 num_bits = 0;
- u32 bit_value = 0;
- union {
- u32 quint_value = 0;
- u32 trit_value;
- };
-};
-
-// Returns a new instance of this struct that corresponds to the
-// can take no more than mav_value values
-constexpr IntegerEncodedValue CreateEncoding(u32 mav_value) {
- while (mav_value > 0) {
- u32 check = mav_value + 1;
-
- // Is mav_value a power of two?
- if (!(check & (check - 1))) {
- return IntegerEncodedValue(IntegerEncoding::JustBits, std::popcount(mav_value));
- }
-
- // Is mav_value of the type 3*2^n - 1?
- if ((check % 3 == 0) && !((check / 3) & ((check / 3) - 1))) {
- return IntegerEncodedValue(IntegerEncoding::Trit, std::popcount(check / 3 - 1));
- }
-
- // Is mav_value of the type 5*2^n - 1?
- if ((check % 5 == 0) && !((check / 5) & ((check / 5) - 1))) {
- return IntegerEncodedValue(IntegerEncoding::Quint, std::popcount(check / 5 - 1));
- }
-
- // Apparently it can't be represented with a bounded integer sequence...
- // just iterate.
- mav_value--;
- }
- return IntegerEncodedValue(IntegerEncoding::JustBits, 0);
-}
-
-constexpr std::array<IntegerEncodedValue, 256> MakeEncodedValues() {
- std::array<IntegerEncodedValue, 256> encodings{};
- for (std::size_t i = 0; i < encodings.size(); ++i) {
- encodings[i] = CreateEncoding(static_cast<u32>(i));
- }
- return encodings;
-}
-
-constexpr std::array<IntegerEncodedValue, 256> ASTC_ENCODINGS_VALUES = MakeEncodedValues();
-
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);