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Semantics: Geometry stage can support max_vertices = 0.

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To do this, more generally use a named -1 as a not set value.
This commit is contained in:
John Kessenich 2015-12-11 15:44:12 -07:00
parent 3c24a06c8c
commit 494a02a2b0
18 changed files with 93 additions and 36 deletions
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14
glslang/Include/Types.h
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@ -327,6 +327,8 @@ enum TBlendEquationShift {
class TQualifier {
public:
static const int layoutNotSet = -1;
void clear()
{
precision = EpqNone;
@ -489,8 +491,8 @@ public:
{
layoutMatrix = ElmNone;
layoutPacking = ElpNone;
layoutOffset = -1;
layoutAlign = -1;
layoutOffset = layoutNotSet;
layoutAlign = layoutNotSet;
layoutLocation = layoutLocationEnd;
layoutComponent = layoutComponentEnd;
@ -567,11 +569,11 @@ public:
}
bool hasOffset() const
{
return layoutOffset != -1;
return layoutOffset != layoutNotSet;
}
bool hasAlign() const
{
return layoutAlign != -1;
return layoutAlign != layoutNotSet;
}
bool hasAnyLocation() const
{
@ -789,7 +791,7 @@ struct TShaderQualifiers {
originUpperLeft = false;
pixelCenterInteger = false;
invocations = 0; // 0 means no declaration
vertices = 0;
vertices = TQualifier::layoutNotSet;
spacing = EvsNone;
order = EvoNone;
pointMode = false;
@ -813,7 +815,7 @@ struct TShaderQualifiers {
originUpperLeft = src.originUpperLeft;
if (src.invocations != 0)
invocations = src.invocations;
if (src.vertices != 0)
if (src.vertices != TQualifier::layoutNotSet)
vertices = src.vertices;
if (src.spacing != EvsNone)
spacing = src.spacing;