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load_ubo is using 32-bit loads as uniforms surfaces have a 32-bit surface format defined. So when reading 16-bit components with the sampler we need to unshuffle two 16-bit components from each 32-bit component. Using the sampler avoids the use of the byte_scattered_read message that needs one message for each component and is supposed to be slower. v2: (Jason Ekstrand) - Simplify component selection and unshuffling for different bitsizes - Remove SKL optimization of reading only two 32-bit components when reading 16-bits types. Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
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