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Added support for BC4 (aka 3Dc+) compressed textures

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This commit is contained in:
Alex Szpakowski
2013-07-28 17:20:24 -03:00
parent fa6eaaa3a6
commit e19ade38ab
5 changed files with 16 additions and 2 deletions
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src/modules/graphics/opengl/Image.cpp
+6
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@@ -615,6 +615,10 @@ GLenum Image::getCompressedFormat(image::CompressedData::TextureType type) const
return GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
case image::CompressedData::TYPE_DXT5:
return GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
case image::CompressedData::TYPE_BC4:
return GL_COMPRESSED_RED_RGTC1;
case image::CompressedData::TYPE_BC4s:
return GL_COMPRESSED_SIGNED_RED_RGTC1;
case image::CompressedData::TYPE_BC5:
return GL_COMPRESSED_RG_RGTC2;
case image::CompressedData::TYPE_BC5s:
@@ -660,6 +664,8 @@ bool Image::hasCompressedTextureSupport(image::CompressedData::TextureType type)
case image::CompressedData::TYPE_DXT3:
case image::CompressedData::TYPE_DXT5:
return GLEE_EXT_texture_compression_s3tc;
case image::CompressedData::TYPE_BC4:
case image::CompressedData::TYPE_BC4s:
case image::CompressedData::TYPE_BC5:
case image::CompressedData::TYPE_BC5s:
return (GLEE_VERSION_3_0 || GLEE_ARB_texture_compression_rgtc || GLEE_EXT_texture_compression_rgtc);