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With the meaning that all values are assumed to be positive.
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So that we have a comparable number for different formats.
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Otherwise we get -O2 optimization flag, preventing proper debugging.
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ubytes.
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As it will be shared with more modules.
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LLVM during optimization reorders the rdtsc instructions next to each
other, which makes it pretty useless.
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Straightforward representation of floating-point/fixed-point/integer,
normalized/scaled, signed/unsigned SIMD vector types.
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The code
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Because this is interpolated (ie. early) depth, we can build in an
assumption about the quads emitted by triangle setup, ie that they
are actually linear spans. Interpolate z over those spans in z16
format to save on math & conversion.
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Disable blend code when no color buffer
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Actually, the makefile/sconscript changes were already commit by mistake.
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Namelly, explicitly distinguish formats coded by arithmetic manipulation,
from formats layed out in array.
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At least not until stabilizes, to reduce noise.
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Actually some of this test cases need more testing...
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Consolidate the read-modify-write color combining code from
the blend, colormask and output stages.
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