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Nicol Bolas
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knowledgeinchaos
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I have some images that I know will be stored with either PVR or ETC compression. I would like to be able to convert these images into uncompressed RGB. However, because of binary size constraints, I would like to do so without adding a dedicated library for the conversion.

Does there exist any ways to do this? I know functions like glCompressedTexImage2D will let me load the compressed image to GPU. However, I'm having issues reading the decoded version out. For extra context, I am trying to do this with OpenGL ES 2.0.

Thanks!

I have some images that I know will be stored with either PVR or ETC compression. I would like to be able to convert these images into uncompressed RGB. However, because of binary size constraints, I would like to do so without adding a dedicated library for the conversion.

Does there exist any ways to do this? I know functions like glCompressedTexImage2D will let me load the compressed image to GPU. However, I'm having issues reading the decoded version out.

Thanks!

I have some images that I know will be stored with either PVR or ETC compression. I would like to be able to convert these images into uncompressed RGB. However, because of binary size constraints, I would like to do so without adding a dedicated library for the conversion.

Does there exist any ways to do this? I know functions like glCompressedTexImage2D will let me load the compressed image to GPU. However, I'm having issues reading the decoded version out. For extra context, I am trying to do this with OpenGL ES 2.0.

Thanks!

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knowledgeinchaos
knowledgeinchaos
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Loading compressed image to GPU and reading back decompressed on CPU

I have some images that I know will be stored with either PVR or ETC compression. I would like to be able to convert these images into uncompressed RGB. However, because of binary size constraints, I would like to do so without adding a dedicated library for the conversion.

Does there exist any ways to do this? I know functions like glCompressedTexImage2D will let me load the compressed image to GPU. However, I'm having issues reading the decoded version out.

Thanks!