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SPV: Use heuristic to avoid geometry multi-streams when possible.

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This commit is contained in:
John Kessenich 2016-03-03 22:29:11 -07:00
parent 2ac71dfb78
commit f2d8a5c53f
4 changed files with 14 additions and 6 deletions
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6
glslang/MachineIndependent/localintermediate.h
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@ -128,7 +128,8 @@ public:
numMains(0), numErrors(0), numPushConstants(0), recursive(false),
invocations(TQualifier::layoutNotSet), vertices(TQualifier::layoutNotSet), inputPrimitive(ElgNone), outputPrimitive(ElgNone),
pixelCenterInteger(false), originUpperLeft(false),
vertexSpacing(EvsNone), vertexOrder(EvoNone), pointMode(false), earlyFragmentTests(false), depthLayout(EldNone), depthReplacing(false), blendEquations(0), xfbMode(false)
vertexSpacing(EvsNone), vertexOrder(EvoNone), pointMode(false), earlyFragmentTests(false), depthLayout(EldNone), depthReplacing(false), blendEquations(0),
multiStream(false), xfbMode(false)
{
localSize[0] = 1;
localSize[1] = 1;
@ -271,6 +272,8 @@ public:
void setXfbMode() { xfbMode = true; }
bool getXfbMode() const { return xfbMode; }
void setMultiStream() { multiStream = true; }
bool isMultiStream() const { return multiStream; }
bool setOutputPrimitive(TLayoutGeometry p)
{
if (outputPrimitive != ElgNone)
@ -361,6 +364,7 @@ protected:
bool depthReplacing;
int blendEquations; // an 'or'ing of masks of shifts of TBlendEquationShift
bool xfbMode;
bool multiStream;
typedef std::list<TCall> TGraph;
TGraph callGraph;