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Betsy: Generate BC1 tables once during compression

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This commit is contained in:
BlueCube3310
2025-08-18 11:47:57 +02:00
parent 9a5d6d1049
commit 04860bb41a
2 changed files with 527 additions and 1026 deletions
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1541
modules/betsy/betsy_bc1.h
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12
modules/betsy/image_compress_betsy.cpp
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@ -471,7 +471,17 @@ Error BetsyCompressor::_compress(BetsyFormat p_format, Image *r_img) {
// Encoding table setup.
if ((dest_format == Image::FORMAT_DXT1 || dest_format == Image::FORMAT_DXT5) && dxt1_encoding_table_buffer.is_null()) {
dxt1_encoding_table_buffer = compress_rd->storage_buffer_create(1024 * 4, Span(dxt1_encoding_table).reinterpret<uint8_t>());
LocalVector<float> dxt1_encoding_table;
dxt1_encoding_table.resize(256 * 4);
for (int i = 0; i < 256; i++) {
dxt1_encoding_table[i * 2 + 0] = static_cast<float>(stb__OMatch5[i][0]);
dxt1_encoding_table[i * 2 + 1] = static_cast<float>(stb__OMatch5[i][1]);
dxt1_encoding_table[512 + (i * 2 + 0)] = static_cast<float>(stb__OMatch6[i][0]);
dxt1_encoding_table[512 + (i * 2 + 1)] = static_cast<float>(stb__OMatch6[i][1]);
}
dxt1_encoding_table_buffer = compress_rd->storage_buffer_create(dxt1_encoding_table.size() * sizeof(float), Span<float>(dxt1_encoding_table).reinterpret<uint8_t>());
}
const int mip_count = r_img->get_mipmap_count() + 1;