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etcpak: Fix ETCPAK_TYPE_ETC2_RA_AS_RG

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This commit fixes texture compression via ETCPAK_TYPE_ETC2_RA_AS_RG,
switching to the right color channels and using the right compression
method. Textures imported with previous versions need to be re-imported
in order to render correctly.
This commit is contained in:
rsjtdrjgfuzkfg 2023-01-11 23:03:07 +01:00
parent f73cb4c13d
commit a1a2c2c2ce
1 changed files with 3 additions and 2 deletions
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5
modules/etcpak/image_compress_etcpak.cpp
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@ -118,6 +118,7 @@ void _compress_etcpak(EtcpakType p_compresstype, Image *r_img, float p_lossy_qua
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_RA_AS_RG) {
target_format = Image::FORMAT_ETC2_RA_AS_RG;
r_img->convert_rg_to_ra_rgba8();
r_img->convert_rgba8_to_bgra8(); // It's badly documented but ETCPAK seems to be expected BGRA8 for ETC.
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_ALPHA) {
target_format = Image::FORMAT_ETC2_RGBA8;
r_img->convert_rgba8_to_bgra8(); // It's badly documented but ETCPAK seems to be expected BGRA8 for ETC.
@ -222,9 +223,9 @@ void _compress_etcpak(EtcpakType p_compresstype, Image *r_img, float p_lossy_qua
}
if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC1) {
CompressEtc1RgbDither(src_mip_read, dest_mip_write, blocks, mip_w);
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2 || p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_RA_AS_RG) {
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2) {
CompressEtc2Rgb(src_mip_read, dest_mip_write, blocks, mip_w, true);
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_ALPHA) {
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_ALPHA || p_compresstype == EtcpakType::ETCPAK_TYPE_ETC2_RA_AS_RG) {
CompressEtc2Rgba(src_mip_read, dest_mip_write, blocks, mip_w, true);
} else if (p_compresstype == EtcpakType::ETCPAK_TYPE_DXT1) {
CompressDxt1Dither(src_mip_read, dest_mip_write, blocks, mip_w);