OpenSubdiv/opensubdiv/osd/patch.h
Takahito Tejima 8efecb0fca Batching stuffs: generalized kernel batches, table/dispatcher refactoring, multiMeshFactory, drawContext, etc.
2 client APIs are changed.
- VertexBuffer::UpdateData() takes start vertex offset
- ComputeController::Refine() takes FarKernelBatchVector

Also, ComputeContext no longer holds farmesh.
Client can free farmesh after OsdComputeContext is created.
(but still need FarKernelBatchVector to apply subdivision kernels)
2013-03-07 17:50:15 -08:00

123 lines
4.4 KiB
C++

//
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#ifndef OSD_PATCH_H
#define OSD_PATCH_H
#include <vector>
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
enum OsdPatchType {
kNonPatch = 0,
kRegular = 1,
kBoundary = 2,
kCorner = 3,
kGregory = 4,
kBoundaryGregory = 5,
kTransitionRegular = 6,
kTransitionBoundary = 7,
kTransitionCorner = 8,
};
struct OsdPatchDescriptor {
OsdPatchDescriptor() :
type(kNonPatch), pattern(0), rotation(0), subpatch(0),
maxValence(0), numElements(0) {}
OsdPatchDescriptor(
OsdPatchType type,
unsigned char pattern,
unsigned char rotation,
unsigned char maxValence,
unsigned char numElements) :
type(type), pattern(pattern), rotation(rotation), subpatch(0),
maxValence(maxValence), numElements(numElements) {}
OsdPatchType type:4; // 0-8
unsigned char pattern:3; // 0-4
unsigned char rotation:2; // 0-3
unsigned char subpatch:2; // 0-3
unsigned char maxValence:5; // 0-29
unsigned char numElements:5; // 0-31
};
bool operator< (OsdPatchDescriptor const & a,
OsdPatchDescriptor const & b);
struct OsdPatchArray {
OsdPatchDescriptor desc;
int patchSize;
int firstIndex;
int numIndices;
int levelBase;
int gregoryQuadOffsetBase;
};
typedef std::vector<OsdPatchArray> OsdPatchArrayVector;
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
#endif /* OSD_PATCH_H_ */