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Implement atomic counter offset semantics.

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@27760 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2014-08-19 06:08:38 +00:00
parent aa657c117e
commit d78ca6297d
10 changed files with 207 additions and 66 deletions
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21
glslang/MachineIndependent/localintermediate.h
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@ -93,6 +93,19 @@ struct TIoRange {
int index;
};
// An IO range is a 2-D rectangle; the set of (binding, offset) pairs all lying
// within the same binding and offset range.
struct TOffsetRange {
TOffsetRange(TRange binding, TRange offset)
: binding(binding), offset(offset) { }
bool overlap(const TOffsetRange& rhs) const
{
return binding.overlap(rhs.binding) && offset.overlap(rhs.offset);
}
TRange binding;
TRange offset;
};
// Things that need to be tracked per xfb buffer.
struct TXfbBuffer {
TXfbBuffer() : stride(TQualifier::layoutXfbStrideEnd), implicitStride(0), containsDouble(false) { }
@ -269,6 +282,7 @@ public:
bool inIoAccessed(const TString& name) const { return ioAccessed.find(name) != ioAccessed.end(); }
int addUsedLocation(const TQualifier&, const TType&, bool& typeCollision);
int addUsedOffsets(int binding, int offset, int numOffsets);
int computeTypeLocationSize(const TType&) const;
bool setXfbBufferStride(int buffer, int stride)
@ -320,9 +334,10 @@ protected:
typedef std::list<TCall> TGraph;
TGraph callGraph;
std::set<TString> ioAccessed; // set of names of statically read/written I/O that might need extra checking
std::vector<TIoRange> usedIo[4]; // sets of used locations, one for each of in, out, uniform and buffers
std::vector<TXfbBuffer> xfbBuffers; // all the data we need to track per xfb buffer
std::set<TString> ioAccessed; // set of names of statically read/written I/O that might need extra checking
std::vector<TIoRange> usedIo[4]; // sets of used locations, one for each of in, out, uniform, and buffers
std::vector<TOffsetRange> usedAtomics; // sets of bindings used by atomic counters
std::vector<TXfbBuffer> xfbBuffers; // all the data we need to track per xfb buffer
private:
void operator=(TIntermediate&); // prevent assignments