void
OsdD3D11DrawContext::_AppendPatchArray(
unsigned int *indexBuffer, int *indexBase,
unsigned int *levelBuffer, int *levelBase,
FarPatchTables::PTable const & ptable, int patchSize,
FarPatchTables::PtexCoordinateTable const & ptexTable,
FarPatchTables::FVarDataTable const & fvarTable, int fvarDataWidth,
OsdPatchDescriptor const & desc,
int gregoryQuadOffsetBase)
{
if (ptable.IsEmpty()) {
return;
}
OsdPatchArray array;
array.desc = desc;
array.patchSize = patchSize;
array.firstIndex = *indexBase;
array.numIndices = ptable.GetSize();
array.levelBase = *levelBase;
array.gregoryQuadOffsetBase = gregoryQuadOffsetBase;
int numSubPatches = 1;
if (desc.type == OpenSubdiv::kTransitionRegular or
desc.type == OpenSubdiv::kTransitionBoundary or
desc.type == OpenSubdiv::kTransitionCorner) {
int subPatchCounts[] = { 3, 4, 4, 4, 2 };
numSubPatches = subPatchCounts[desc.pattern];
}
for (int subpatch = 0; subpatch < numSubPatches; ++subpatch) {
array.desc.subpatch = subpatch;
patchArrays.push_back(array);
}
memcpy(indexBuffer + array.firstIndex,
ptable[0], array.numIndices * sizeof(unsigned int));
*indexBase += array.numIndices;
std::vector<unsigned int> levels;
levels.reserve(ptable.GetSize());
for (int i = 0; i < (int) ptable.GetMarkers().size()-1; ++i) {
int numPrims = ptable.GetNumElements(i)/array.patchSize;
for (int j = 0; j < numPrims; ++j) {
levels.push_back(i);
}
}
memcpy(levelBuffer + array.levelBase,
&levels[0], levels.size() * sizeof(unsigned int));
*levelBase += (int)levels.size();
}
void
OsdGLDrawContext::_AppendPatchArray(
int *indexBase, int *levelBase,
FarPatchTables::PTable const & ptable, int patchSize,
FarPatchTables::PtexCoordinateTable const & ptexTable,
FarPatchTables::FVarDataTable const & fvarTable, int fvarDataWidth,
OsdPatchDescriptor const & desc, int gregoryQuadOffsetBase)
{
if (ptable.IsEmpty()) {
return;
}
OsdPatchArray array;
array.desc = desc;
array.patchSize = patchSize;
array.firstIndex = *indexBase;
array.numIndices = ptable.GetSize();
array.levelBase = *levelBase;
array.gregoryQuadOffsetBase = gregoryQuadOffsetBase;
int numSubPatches = 1;
if (desc.type == OpenSubdiv::kTransitionRegular or
desc.type == OpenSubdiv::kTransitionBoundary or
desc.type == OpenSubdiv::kTransitionCorner) {
int subPatchCounts[] = { 3, 4, 4, 4, 2 };
numSubPatches = subPatchCounts[desc.pattern];
}
for (int subpatch = 0; subpatch < numSubPatches; ++subpatch) {
array.desc.subpatch = subpatch;
patchArrays.push_back(array);
}
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER,
array.firstIndex * sizeof(unsigned int),
array.numIndices * sizeof(unsigned int),
ptable[0]);
*indexBase += array.numIndices;
std::vector<unsigned char> levels;
levels.reserve(ptable.GetSize());
for (int i = 0; i < (int) ptable.GetMarkers().size()-1; ++i) {
int numPrims = ptable.GetNumElements(i)/array.patchSize;
for (int j = 0; j < numPrims; ++j) {
levels.push_back(i);
}
}
#if defined(GL_ARB_texture_buffer_object) || defined(GL_VERSION_3_1)
glBufferSubData(GL_TEXTURE_BUFFER,
array.levelBase * sizeof(unsigned char),
levels.size() * sizeof(unsigned char),
&levels[0]);
*levelBase += (int)levels.size();
#endif
if (ptexCoordinateTextureBuffer) {
#if defined(GL_ARB_texture_buffer_object) || defined(GL_VERSION_3_1)
assert(ptexTable.size()/2 == levels.size());
// populate ptex coordinates
glBufferSubData(GL_ARRAY_BUFFER,
array.levelBase * sizeof(int) * 2,
(int)ptexTable.size() * sizeof(int),
&ptexTable[0]);
#endif
}
if (fvarDataTextureBuffer) {
#if defined(GL_ARB_texture_buffer_object) || defined(GL_VERSION_3_1)
assert(fvarTable.size()/(fvarDataWidth*4) == levels.size());
// populate fvar data
glBufferSubData(GL_UNIFORM_BUFFER,
array.levelBase * sizeof(float) * fvarDataWidth*4,
(int)fvarTable.size() * sizeof(float),
&fvarTable[0]);
#endif
}
}