flatten encoding_values
This commit is contained in:
parent
71857e889e
commit
0f7220c9c8
|
@ -54,13 +54,13 @@ const uint TRIT = 2u;
|
||||||
|
|
||||||
// ASTC Encodings data, sorted in ascending order based on their BitLength value
|
// ASTC Encodings data, sorted in ascending order based on their BitLength value
|
||||||
// (see GetBitLength() function)
|
// (see GetBitLength() function)
|
||||||
const uvec4 encoding_values[6] = uvec4[](
|
const uint encoding_values[22] = uint[](
|
||||||
uvec4((JUST_BITS), (JUST_BITS | (1u << 8u)), (TRIT), (JUST_BITS | (2u << 8u))),
|
(JUST_BITS), (JUST_BITS | (1u << 8u)), (TRIT), (JUST_BITS | (2u << 8u)),
|
||||||
uvec4((QUINT), (TRIT | (1u << 8u)), (JUST_BITS | (3u << 8u)), (QUINT | (1u << 8u))),
|
(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))),
|
(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))),
|
(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))),
|
(QUINT | (4u << 8u)), (TRIT | (5u << 8u)), (JUST_BITS | (7u << 8u)), (QUINT | (5u << 8u)),
|
||||||
uvec4((TRIT | (6u << 8u)), (JUST_BITS | (8u << 8u)), 0u, 0u));
|
(TRIT | (6u << 8u)), (JUST_BITS | (8u << 8u)));
|
||||||
|
|
||||||
// Input ASTC texture globals
|
// Input ASTC texture globals
|
||||||
int total_bitsread = 0;
|
int total_bitsread = 0;
|
||||||
|
@ -313,8 +313,7 @@ EncodingData GetEncodingFromVector(uint index) {
|
||||||
|
|
||||||
// Returns the number of bits required to encode n_vals values.
|
// Returns the number of bits required to encode n_vals values.
|
||||||
uint GetBitLength(uint n_vals, uint encoding_index) {
|
uint GetBitLength(uint n_vals, uint encoding_index) {
|
||||||
const EncodingData encoding_value =
|
const EncodingData encoding_value = EncodingData(encoding_values[encoding_index]);
|
||||||
EncodingData(encoding_values[encoding_index / 4][encoding_index % 4]);
|
|
||||||
const uint encoding = Encoding(encoding_value);
|
const uint encoding = Encoding(encoding_value);
|
||||||
uint total_bits = NumBits(encoding_value) * n_vals;
|
uint total_bits = NumBits(encoding_value) * n_vals;
|
||||||
if (encoding == TRIT) {
|
if (encoding == TRIT) {
|
||||||
|
@ -435,7 +434,7 @@ void DecodeTritBlock(uint num_bits) {
|
||||||
}
|
}
|
||||||
|
|
||||||
void DecodeIntegerSequence(uint max_range, uint num_values) {
|
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 encoding = Encoding(val);
|
||||||
const uint num_bits = NumBits(val);
|
const uint num_bits = NumBits(val);
|
||||||
uint vals_decoded = 0;
|
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
|
// Find the largest encoding that's within color_data_bits
|
||||||
// TODO(ameerj): profile with binary search
|
// TODO(ameerj): profile with binary search
|
||||||
int range = 0;
|
int range = 0;
|
||||||
while (++range < ((encoding_values.length() * 4) - 2)) {
|
while (++range < encoding_values.length()) {
|
||||||
const uint bit_length = GetBitLength(num_values, range);
|
const uint bit_length = GetBitLength(num_values, range);
|
||||||
if (bit_length > color_data_bits) {
|
if (bit_length > color_data_bits) {
|
||||||
break;
|
break;
|
||||||
|
|
Loading…
Reference in a new issue