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lizzie 2026-01-29 23:16:20 +00:00 • committed by crueter
parent 71d0b4f79b
commit 7ec09305d0
1 changed files with 91 additions and 90 deletions
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41
src/video_core/host_shaders/astc_decoder.comp
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@ -402,23 +402,7 @@ void DecodeIntegerSequence(uint max_range, uint num_values) {
} }
} }
void DecodeColorValues(uvec4 modes, uint num_partitions, uint color_data_bits, out uint color_values[32]) { uint DecodeSingleColorValue(EncodingData val) {
// TODO: modes[] zero on invalid, so less ops
const uvec4 num_values_tmp = (((modes >> 2) + 1) << 1) & ((uvec4(0, 1, 2, 3) - num_partitions) >> 8);
uint num_values = num_values_tmp.x + num_values_tmp.y + num_values_tmp.z + num_values_tmp.w;
// Find the largest encoding that's within color_data_bits
// TODO(ameerj): profile with binary search
int range = 0;
while (++range < encoding_values.length()) {
const uint bit_length = GetBitLength(num_values, range);
if (bit_length > color_data_bits) {
break;
}
}
const uint upper_bound = num_values;
DecodeIntegerSequence(range - 1, num_values);
for (int i = 0; i < upper_bound; ++i) {
const EncodingData val = GetEncodingFromVector(i);
const uint encoding = Encoding(val); const uint encoding = Encoding(val);
const uint bitlen = NumBits(val); const uint bitlen = NumBits(val);
const uint bitval = BitValue(val); const uint bitval = BitValue(val);
@ -503,9 +487,26 @@ void DecodeColorValues(uvec4 modes, uint num_partitions, uint color_data_bits, o
uint unq = D * C + B; uint unq = D * C + B;
unq = unq ^ A; unq = unq ^ A;
unq = (A & 0x80) | (unq >> 2); unq = (A & 0x80) | (unq >> 2);
color_values[i + 1] = encoding == JUST_BITS return encoding == JUST_BITS ? FastReplicateTo8(bitval, bitlen) : unq;
? FastReplicateTo8(bitval, bitlen) }
: unq;
void DecodeColorValues(uvec4 modes, uint num_partitions, uint color_data_bits, out uint color_values[32]) {
// TODO: modes[] zero on invalid, so less ops
const uvec4 num_values_tmp = (((modes >> 2) + 1) << 1) & ((uvec4(0, 1, 2, 3) - num_partitions) >> 8);
uint num_values = num_values_tmp.x + num_values_tmp.y + num_values_tmp.z + num_values_tmp.w;
// Find the largest encoding that's within color_data_bits
// TODO(ameerj): profile with binary search
uint range = 0;
while (++range < encoding_values.length()) {
const uint bit_length = GetBitLength(num_values, int(range));
if (bit_length > color_data_bits) {
break;
}
}
const uint upper_bound = num_values;
DecodeIntegerSequence(range - 1, num_values);
for (int i = 0; i < upper_bound; ++i) {
color_values[i + 1] = DecodeSingleColorValue(GetEncodingFromVector(i));
} }
} }