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Code Issues Releases Activity

flatten encoding_values

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This commit is contained in:
Ameer J 2023-08-09 18:38:37 -04:00
parent 71857e889e
commit 0f7220c9c8
1 changed files with 10 additions and 11 deletions
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21
src/video_core/host_shaders/astc_decoder.comp
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@ -54,13 +54,13 @@ const uint TRIT = 2u;
// ASTC Encodings data, sorted in ascending order based on their BitLength value
// (see GetBitLength() function)
const uvec4 encoding_values[6] = uvec4[](
uvec4((JUST_BITS), (JUST_BITS | (1u << 8u)), (TRIT), (JUST_BITS | (2u << 8u))),
uvec4((QUINT), (TRIT | (1u << 8u)), (JUST_BITS | (3u << 8u)), (QUINT | (1u << 8u))),
uvec4((TRIT | (2u << 8u)), (JUST_BITS | (4u << 8u)), (QUINT | (2u << 8u)), (TRIT | (3u << 8u))),
uvec4((JUST_BITS | (5u << 8u)), (QUINT | (3u << 8u)), (TRIT | (4u << 8u)), (JUST_BITS | (6u << 8u))),
uvec4((QUINT | (4u << 8u)), (TRIT | (5u << 8u)), (JUST_BITS | (7u << 8u)), (QUINT | (5u << 8u))),
uvec4((TRIT | (6u << 8u)), (JUST_BITS | (8u << 8u)), 0u, 0u));
const uint encoding_values[22] = uint[](
(JUST_BITS), (JUST_BITS | (1u << 8u)), (TRIT), (JUST_BITS | (2u << 8u)),
(QUINT), (TRIT | (1u << 8u)), (JUST_BITS | (3u << 8u)), (QUINT | (1u << 8u)),
(TRIT | (2u << 8u)), (JUST_BITS | (4u << 8u)), (QUINT | (2u << 8u)), (TRIT | (3u << 8u)),
(JUST_BITS | (5u << 8u)), (QUINT | (3u << 8u)), (TRIT | (4u << 8u)), (JUST_BITS | (6u << 8u)),
(QUINT | (4u << 8u)), (TRIT | (5u << 8u)), (JUST_BITS | (7u << 8u)), (QUINT | (5u << 8u)),
(TRIT | (6u << 8u)), (JUST_BITS | (8u << 8u)));
// Input ASTC texture globals
int total_bitsread = 0;
@ -313,8 +313,7 @@ EncodingData GetEncodingFromVector(uint index) {
// Returns the number of bits required to encode n_vals values.
uint GetBitLength(uint n_vals, uint encoding_index) {
const EncodingData encoding_value =
EncodingData(encoding_values[encoding_index / 4][encoding_index % 4]);
const EncodingData encoding_value = EncodingData(encoding_values[encoding_index]);
const uint encoding = Encoding(encoding_value);
uint total_bits = NumBits(encoding_value) * n_vals;
if (encoding == TRIT) {
@ -435,7 +434,7 @@ void DecodeTritBlock(uint num_bits) {
}
void DecodeIntegerSequence(uint max_range, uint num_values) {
EncodingData val = EncodingData(encoding_values[max_range / 4][max_range % 4]);
EncodingData val = EncodingData(encoding_values[max_range]);
const uint encoding = Encoding(val);
const uint num_bits = NumBits(val);
uint vals_decoded = 0;
@ -467,7 +466,7 @@ void DecodeColorValues(uvec4 modes, uint num_partitions, uint color_data_bits) {
// Find the largest encoding that's within color_data_bits
// TODO(ameerj): profile with binary search
int range = 0;
while (++range < ((encoding_values.length() * 4) - 2)) {
while (++range < encoding_values.length()) {
const uint bit_length = GetBitLength(num_values, range);
if (bit_length > color_data_bits) {
break;