f305972377
The idea is to give multiple coordinates to evaluator and evaluate them all at once, avoiding any possible overhead.
153 lines
6.1 KiB
C++
153 lines
6.1 KiB
C++
// Copyright 2018 Blender Foundation. All rights reserved.
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License
|
|
// as published by the Free Software Foundation; either version 2
|
|
// of the License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software Foundation,
|
|
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
//
|
|
// Author: Sergey Sharybin
|
|
|
|
#ifndef OPENSUBDIV_EVALUATOR_INTERNAL_H_
|
|
#define OPENSUBDIV_EVALUATOR_INTERNAL_H_
|
|
|
|
#ifdef _MSC_VER
|
|
# include <iso646.h>
|
|
#endif
|
|
|
|
#include <opensubdiv/far/patchMap.h>
|
|
#include <opensubdiv/far/patchTable.h>
|
|
|
|
struct OpenSubdiv_PatchCoord;
|
|
struct OpenSubdiv_TopologyRefiner;
|
|
|
|
namespace opensubdiv_capi {
|
|
|
|
// Anonymous forward declaration of actual evaluator implementation.
|
|
class CpuEvalOutput;
|
|
|
|
// Wrapper around implementaiton, which defines API which we are capable to
|
|
// provide over the implementation.
|
|
//
|
|
// TODO(sergey): It is almost the same as C-API object, so ideally need to
|
|
// merge them somehow, but how to do this and keep files with all the templates
|
|
// and such separate?
|
|
class CpuEvalOutputAPI {
|
|
public:
|
|
// NOTE: API object becomes an owner of evaluator. Patch we are referencing.
|
|
CpuEvalOutputAPI(CpuEvalOutput *implementation, OpenSubdiv::Far::PatchMap *patch_map);
|
|
~CpuEvalOutputAPI();
|
|
|
|
// Set coarse positions from a continuous array of coordinates.
|
|
void setCoarsePositions(const float *positions,
|
|
const int start_vertex_index,
|
|
const int num_vertices);
|
|
// Set varying data from a continuous array of data.
|
|
void setVaryingData(const float *varying_data,
|
|
const int start_vertex_index,
|
|
const int num_vertices);
|
|
// Set face varying data from a continuous array of data.
|
|
//
|
|
// TODO(sergey): Find a better name for vertex here. It is not the vertex of
|
|
// geometry, but a vertex of UV map.
|
|
void setFaceVaryingData(const int face_varying_channel,
|
|
const float *varying_data,
|
|
const int start_vertex_index,
|
|
const int num_vertices);
|
|
|
|
// Set coarse vertex position from a continuous memory buffer where
|
|
// first coordinate starts at offset of `start_offset` and there is `stride`
|
|
// bytes between adjacent vertex coordinates.
|
|
void setCoarsePositionsFromBuffer(const void *buffer,
|
|
const int start_offset,
|
|
const int stride,
|
|
const int start_vertex_index,
|
|
const int num_vertices);
|
|
// Set varying data from a continuous memory buffer where
|
|
// first coordinate starts at offset of `start_offset` and there is `stride`
|
|
// bytes between adjacent vertex coordinates.
|
|
void setVaryingDataFromBuffer(const void *buffer,
|
|
const int start_offset,
|
|
const int stride,
|
|
const int start_vertex_index,
|
|
const int num_vertices);
|
|
// Set face varying data from a continuous memory buffer where
|
|
// first coordinate starts at offset of `start_offset` and there is `stride`
|
|
// bytes between adjacent vertex coordinates.
|
|
//
|
|
// TODO(sergey): Find a better name for vertex here. It is not the vertex of
|
|
// geometry, but a vertex of UV map.
|
|
void setFaceVaryingDataFromBuffer(const int face_varying_channel,
|
|
const void *buffer,
|
|
const int start_offset,
|
|
const int stride,
|
|
const int start_vertex_index,
|
|
const int num_vertices);
|
|
|
|
// Refine after coarse positions update.
|
|
void refine();
|
|
|
|
// Evaluate given ptex face at given bilinear coordinate.
|
|
// If derivatives are NULL, they will not be evaluated.
|
|
void evaluateLimit(const int ptex_face_index,
|
|
float face_u,
|
|
float face_v,
|
|
float P[3],
|
|
float dPdu[3],
|
|
float dPdv[3]);
|
|
|
|
// Evaluate varying data at a given bilinear coordinate of given ptex face.
|
|
void evaluateVarying(const int ptes_face_index, float face_u, float face_v, float varying[3]);
|
|
|
|
// Evaluate facee-varying data at a given bilinear coordinate of given
|
|
// ptex face.
|
|
void evaluateFaceVarying(const int face_varying_channel,
|
|
const int ptes_face_index,
|
|
float face_u,
|
|
float face_v,
|
|
float face_varying[2]);
|
|
|
|
// Batched evaluation of multiple input coordinates.
|
|
|
|
// Evaluate given ptex face at given bilinear coordinate.
|
|
// If derivatives are NULL, they will not be evaluated.
|
|
//
|
|
// NOTE: Output arrays must point to a memory of size float[3]*num_patch_coords.
|
|
void evaluatePatchesLimit(const OpenSubdiv_PatchCoord *patch_coords,
|
|
const int num_patch_coords,
|
|
float *P,
|
|
float *dPdu,
|
|
float *dPdv);
|
|
|
|
protected:
|
|
CpuEvalOutput *implementation_;
|
|
OpenSubdiv::Far::PatchMap *patch_map_;
|
|
};
|
|
|
|
} // namespace opensubdiv_capi
|
|
|
|
struct OpenSubdiv_EvaluatorInternal {
|
|
public:
|
|
OpenSubdiv_EvaluatorInternal();
|
|
~OpenSubdiv_EvaluatorInternal();
|
|
|
|
opensubdiv_capi::CpuEvalOutputAPI *eval_output;
|
|
const OpenSubdiv::Far::PatchMap *patch_map;
|
|
const OpenSubdiv::Far::PatchTable *patch_table;
|
|
};
|
|
|
|
OpenSubdiv_EvaluatorInternal *openSubdiv_createEvaluatorInternal(
|
|
struct OpenSubdiv_TopologyRefiner *topology_refiner);
|
|
|
|
void openSubdiv_deleteEvaluatorInternal(OpenSubdiv_EvaluatorInternal *evaluator);
|
|
|
|
#endif // OPENSUBDIV_EVALUATOR_INTERNAL_H_
|