diff options
Diffstat (limited to 'modules/basis_universal/image_compress_basisu.cpp')
| -rw-r--r-- | modules/basis_universal/image_compress_basisu.cpp | 89 |
1 files changed, 68 insertions, 21 deletions
diff --git a/modules/basis_universal/image_compress_basisu.cpp b/modules/basis_universal/image_compress_basisu.cpp index 8167fe8c73..ab20d00b5b 100644 --- a/modules/basis_universal/image_compress_basisu.cpp +++ b/modules/basis_universal/image_compress_basisu.cpp @@ -84,14 +84,12 @@ Vector<uint8_t> basis_universal_packer(const Ref<Image> &p_image, Image::UsedCha decompress_format = BASIS_DECOMPRESS_RGBA; } break; case Image::USED_CHANNELS_R: { - decompress_format = BASIS_DECOMPRESS_RGB; + decompress_format = BASIS_DECOMPRESS_R; } break; case Image::USED_CHANNELS_RG: { - // Currently RG textures are compressed as DXT5/ETC2_RGBA8 with a RA -> RG swizzle, - // as BasisUniversal didn't use to support ETC2_RG11 transcoding. params.m_force_alpha = true; image->convert_rg_to_ra_rgba8(); - decompress_format = BASIS_DECOMPRESS_RG_AS_RA; + decompress_format = BASIS_DECOMPRESS_RG; } break; case Image::USED_CHANNELS_RGB: { decompress_format = BASIS_DECOMPRESS_RGB; @@ -219,15 +217,68 @@ Ref<Image> basis_universal_unpacker_ptr(const uint8_t *p_data, int p_size) { // Get supported compression formats. bool bptc_supported = RS::get_singleton()->has_os_feature("bptc"); bool astc_supported = RS::get_singleton()->has_os_feature("astc"); + bool rgtc_supported = RS::get_singleton()->has_os_feature("rgtc"); bool s3tc_supported = RS::get_singleton()->has_os_feature("s3tc"); bool etc2_supported = RS::get_singleton()->has_os_feature("etc2"); bool needs_ra_rg_swap = false; + bool needs_rg_trim = false; + + BasisDecompressFormat decompress_format = (BasisDecompressFormat)(*(uint32_t *)(src_ptr)); - switch (*(uint32_t *)(src_ptr)) { + switch (decompress_format) { + case BASIS_DECOMPRESS_R: { + if (rgtc_supported) { + basisu_format = basist::transcoder_texture_format::cTFBC4_R; + image_format = Image::FORMAT_RGTC_R; + } else if (s3tc_supported) { + basisu_format = basist::transcoder_texture_format::cTFBC1; + image_format = Image::FORMAT_DXT1; + } else if (etc2_supported) { + basisu_format = basist::transcoder_texture_format::cTFETC2_EAC_R11; + image_format = Image::FORMAT_ETC2_R11; + } else { + // No supported VRAM compression formats, decompress. + basisu_format = basist::transcoder_texture_format::cTFRGBA32; + image_format = Image::FORMAT_RGBA8; + needs_rg_trim = true; + } + + } break; case BASIS_DECOMPRESS_RG: { - // RGTC transcoding is currently performed with RG_AS_RA, fail. - ERR_FAIL_V(image); + if (rgtc_supported) { + basisu_format = basist::transcoder_texture_format::cTFBC5_RG; + image_format = Image::FORMAT_RGTC_RG; + } else if (s3tc_supported) { + basisu_format = basist::transcoder_texture_format::cTFBC3; + image_format = Image::FORMAT_DXT5_RA_AS_RG; + } else if (etc2_supported) { + basisu_format = basist::transcoder_texture_format::cTFETC2_EAC_RG11; + image_format = Image::FORMAT_ETC2_RG11; + } else { + // No supported VRAM compression formats, decompress. + basisu_format = basist::transcoder_texture_format::cTFRGBA32; + image_format = Image::FORMAT_RGBA8; + needs_ra_rg_swap = true; + needs_rg_trim = true; + } + + } break; + case BASIS_DECOMPRESS_RG_AS_RA: { + if (s3tc_supported) { + basisu_format = basist::transcoder_texture_format::cTFBC3; + image_format = Image::FORMAT_DXT5_RA_AS_RG; + } else if (etc2_supported) { + basisu_format = basist::transcoder_texture_format::cTFETC2; + image_format = Image::FORMAT_ETC2_RA_AS_RG; + } else { + // No supported VRAM compression formats, decompress. + basisu_format = basist::transcoder_texture_format::cTFRGBA32; + image_format = Image::FORMAT_RGBA8; + needs_ra_rg_swap = true; + needs_rg_trim = true; + } + } break; case BASIS_DECOMPRESS_RGB: { if (bptc_supported) { @@ -267,20 +318,7 @@ Ref<Image> basis_universal_unpacker_ptr(const uint8_t *p_data, int p_size) { basisu_format = basist::transcoder_texture_format::cTFRGBA32; image_format = Image::FORMAT_RGBA8; } - } break; - case BASIS_DECOMPRESS_RG_AS_RA: { - if (s3tc_supported) { - basisu_format = basist::transcoder_texture_format::cTFBC3; - image_format = Image::FORMAT_DXT5_RA_AS_RG; - } else if (etc2_supported) { - basisu_format = basist::transcoder_texture_format::cTFETC2; - image_format = Image::FORMAT_ETC2_RA_AS_RG; - } else { - // No supported VRAM compression formats, decompress. - basisu_format = basist::transcoder_texture_format::cTFRGBA32; - image_format = Image::FORMAT_RGBA8; - needs_ra_rg_swap = true; - } + } break; } @@ -324,6 +362,15 @@ Ref<Image> basis_universal_unpacker_ptr(const uint8_t *p_data, int p_size) { image->convert_ra_rgba8_to_rg(); } + if (needs_rg_trim) { + // Remove unnecessary color channels from uncompressed textures. + if (decompress_format == BASIS_DECOMPRESS_R) { + image->convert(Image::FORMAT_R8); + } else if (decompress_format == BASIS_DECOMPRESS_RG || decompress_format == BASIS_DECOMPRESS_RG_AS_RA) { + image->convert(Image::FORMAT_RG8); + } + } + return image; } |