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HLSL: add optional position.Y inversion

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Adds command line options:

   --invert-y
   --iy

(synonyms) which invert position.Y on vertex shader output.  Handles these cases:

* Direct single variable return
* Member of direct returned struct
* Single variable output parameter
* Member of struct output parameter

API:

    // Enables position.Y output negation in vertex shader
    void TShader::setInvertY(bool invert);

Fixes #1173
This commit is contained in:
LoopDawg
2017-12-06 16:52:03 -07:00
parent 471bfed062
commit b22c069f7a
13 changed files with 549 additions and 1 deletions
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11
Test/runtests
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@@ -186,6 +186,17 @@ diff -b $BASEDIR/remap.invalid-spirv-1.out $TARGETDIR/remap.invalid-spirv-1.out
$REMAPEXE --do-everything -i remap.invalid-spirv-2.spv -o $TARGETDIR > $TARGETDIR/remap.invalid-spirv-2.out && HASERROR=1
diff -b $BASEDIR/remap.invalid-spirv-2.out $TARGETDIR/remap.invalid-spirv-2.out || HASERROR=1
#
# Testing position Y inversion
#
echo "Testing position Y inversion"
$EXE -H -e main -V -D -H -i --iy hlsl.y-negate-1.vert > $TARGETDIR/hlsl.y-negate-1.vert.out
diff -b $BASEDIR/hlsl.y-negate-1.vert.out $TARGETDIR/hlsl.y-negate-1.vert.out || HASERROR=1
$EXE -H -e main -V -D -H -i --invert-y hlsl.y-negate-2.vert > $TARGETDIR/hlsl.y-negate-2.vert.out
diff -b $BASEDIR/hlsl.y-negate-2.vert.out $TARGETDIR/hlsl.y-negate-2.vert.out || HASERROR=1
$EXE -H -e main -V -D -H -i --invert-y hlsl.y-negate-3.vert > $TARGETDIR/hlsl.y-negate-3.vert.out
diff -b $BASEDIR/hlsl.y-negate-3.vert.out $TARGETDIR/hlsl.y-negate-3.vert.out || HASERROR=1
#
# Final checking
#