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5a51f31104
OpenSubdiv/regression/osd_regression/main.cpp
George ElKoura 5a51f31104 Remove mention of vtr from tests and examples. 
- Renamed common/vtr_utils to common/far_utils.
- Renamed all mentions of Vtr in the sources of tests and examples.
2015-05-30 22:10:07 -07:00

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//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#if defined(__APPLE__)
#if defined(OSD_USES_GLEW)
#include <GL/glew.h>
#else
#include <OpenGL/gl3.h>
#endif
#define GLFW_INCLUDE_GL3
#define GLFW_NO_GLU
#else
#include <stdlib.h>
#include <GL/glew.h>
#if defined(_WIN32)
// XXX Must include windows.h here or GLFW pollutes the global namespace
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
#endif
#include <GLFW/glfw3.h>
GLFWwindow* g_window=0;
#include <stdio.h>
#include <cassert>
#include <osd/cpuEvaluator.h>
#include <osd/cpuVertexBuffer.h>
#include <osd/cpuGLVertexBuffer.h>
#include <far/stencilTableFactory.h>
#include "../common/cmp_utils.h"
#include "../common/hbr_utils.h"
#include "../common/far_utils.h"
//
// Regression testing matching Osd to Hbr
//
// Notes:
// - precision is currently held at 1e-6
//
// - results cannot be bitwise identical as some vertex interpolations
// are not happening in the same order.
//
// - only vertex interpolation is being tested at the moment.
//
#define PRECISION 1e-6
using namespace OpenSubdiv;
//------------------------------------------------------------------------------
enum BackendType {
kBackendCPU = 0, // raw CPU
kBackendCPUGL = 1, // CPU with GL-backed buffer
kBackendCount
};
static const char* g_BackendNames[kBackendCount] = {
"CPU",
"CPUGL",
};
static int g_Backend = -1;
//------------------------------------------------------------------------------
// Vertex class implementation
struct xyzVV {
xyzVV() { }
xyzVV( int /*i*/ ) { }
xyzVV( float x, float y, float z ) { _pos[0]=x; _pos[1]=y; _pos[2]=z; }
xyzVV( const xyzVV & src ) { _pos[0]=src._pos[0]; _pos[1]=src._pos[1]; _pos[2]=src._pos[2]; }
~xyzVV( ) { }
void AddWithWeight(const xyzVV& src, float weight, void * =0 ) {
_pos[0]+=weight*src._pos[0];
_pos[1]+=weight*src._pos[1];
_pos[2]+=weight*src._pos[2];
}
void AddVaryingWithWeight(const xyzVV& , float, void * =0 ) { }
void Clear( void * =0 ) { _pos[0]=_pos[1]=_pos[2]=0.0f; }
void SetPosition(float x, float y, float z) { _pos[0]=x; _pos[1]=y; _pos[2]=z; }
void ApplyVertexEdit(const OpenSubdiv::HbrVertexEdit<xyzVV> & edit) {
const float *src = edit.GetEdit();
switch(edit.GetOperation()) {
case OpenSubdiv::HbrHierarchicalEdit<xyzVV>::Set:
_pos[0] = src[0];
_pos[1] = src[1];
_pos[2] = src[2];
break;
case OpenSubdiv::HbrHierarchicalEdit<xyzVV>::Add:
_pos[0] += src[0];
_pos[1] += src[1];
_pos[2] += src[2];
break;
case OpenSubdiv::HbrHierarchicalEdit<xyzVV>::Subtract:
_pos[0] -= src[0];
_pos[1] -= src[1];
_pos[2] -= src[2];
break;
}
}
void ApplyMovingVertexEdit(const OpenSubdiv::HbrMovingVertexEdit<xyzVV> &) { }
const float * GetPos() const { return _pos; }
private:
float _pos[3];
};
//------------------------------------------------------------------------------
class xyzFV;
typedef OpenSubdiv::HbrMesh<xyzVV> xyzmesh;
typedef OpenSubdiv::HbrFace<xyzVV> xyzface;
typedef OpenSubdiv::HbrVertex<xyzVV> xyzvertex;
typedef OpenSubdiv::HbrHalfedge<xyzVV> xyzhalfedge;
typedef OpenSubdiv::HbrFaceOperator<xyzVV> xyzFaceOperator;
typedef OpenSubdiv::HbrVertexOperator<xyzVV> xyzVertexOperator;
typedef OpenSubdiv::Far::TopologyRefiner FarTopologyRefiner;
//------------------------------------------------------------------------------
int
checkVertexBuffer(
const FarTopologyRefiner &refiner, xyzmesh * hmesh,
const float * vbData, int numElements) {
int count=0;
float deltaAvg[3] = {0.0f, 0.0f, 0.0f},
deltaCnt[3] = {0.0f, 0.0f, 0.0f};
std::vector<xyzVV> hbrVertexData;
std::vector<bool> hbrVertexOnBoundaryData;
// Only care about vertex on boundary conditions if the interpolate boundary
// is 'none'
std::vector<bool> *hbrVertexOnBoundaryPtr =
(hmesh->GetInterpolateBoundaryMethod() ==
xyzmesh::k_InterpolateBoundaryNone)
? &hbrVertexOnBoundaryData
: NULL;
GetReorderedHbrVertexData(refiner, *hmesh, &hbrVertexData,
hbrVertexOnBoundaryPtr);
//int nverts = hmesh->GetNumVertices();
int nverts = (int)hbrVertexData.size();
for (int i=0; i<nverts; ++i) {
const float * ov = & vbData[ i * numElements ];
// boundary interpolation rules set to "none" produce "undefined"
// vertices on boundary vertices : far does not match hbr for those,
// so skip comparison.
if (hbrVertexOnBoundaryPtr and (*hbrVertexOnBoundaryPtr)[i])
continue;
const float *hbrPos = hbrVertexData[i].GetPos();
if ( hbrPos[0] != ov[0] )
deltaCnt[0]++;
if ( hbrPos[1] != ov[1] )
deltaCnt[1]++;
if ( hbrPos[2] != ov[2] )
deltaCnt[2]++;
float delta[3] = { hbrPos[0] - ov[0],
hbrPos[1] - ov[1],
hbrPos[2] - ov[2] };
deltaAvg[0]+=delta[0];
deltaAvg[1]+=delta[1];
deltaAvg[2]+=delta[2];
float dist = sqrtf( delta[0]*delta[0]+delta[1]*delta[1]+delta[2]*delta[2]);
if ( dist > PRECISION ) {
printf("// HbrVertex<T> %d fails : dist=%.10f (%.10f %.10f %.10f)"
" (%.10f %.10f %.10f)\n", i, dist, hbrPos[0],
hbrPos[1],
hbrPos[2],
ov[0],
ov[1],
ov[2] );
count++;
}
}
if (deltaCnt[0])
deltaAvg[0]/=deltaCnt[0];
if (deltaCnt[1])
deltaAvg[1]/=deltaCnt[1];
if (deltaCnt[2])
deltaAvg[2]/=deltaCnt[2];
printf(" delta ratio : (%d/%d %d/%d %d/%d)\n", (int)deltaCnt[0], nverts,
(int)deltaCnt[1], nverts,
(int)deltaCnt[2], nverts );
printf(" average delta : (%.10f %.10f %.10f)\n", deltaAvg[0],
deltaAvg[1],
deltaAvg[2] );
if (count==0)
printf(" success !\n");
return count;
}
//------------------------------------------------------------------------------
static void
buildStencilTable(
const FarTopologyRefiner &refiner,
Far::StencilTable const **vertexStencils,
Far::StencilTable const **varyingStencils)
{
Far::StencilTableFactory::Options soptions;
soptions.generateOffsets = true;
soptions.generateIntermediateLevels = true;
*vertexStencils = Far::StencilTableFactory::Create(refiner, soptions);
soptions.interpolationMode = Far::StencilTableFactory::INTERPOLATE_VARYING;
*varyingStencils = Far::StencilTableFactory::Create(refiner, soptions);
}
//------------------------------------------------------------------------------
static int
checkMeshCPU( FarTopologyRefiner *refiner,
const std::vector<xyzVV>& coarseverts,
xyzmesh * refmesh) {
Far::StencilTable const *vertexStencils;
Far::StencilTable const *varyingStencils;
buildStencilTable(*refiner, &vertexStencils, &varyingStencils);
assert(coarseverts.size() == (size_t)refiner->GetNumVerticesTotal());
Osd::CpuVertexBuffer * vb =
Osd::CpuVertexBuffer::Create(3, refiner->GetNumVerticesTotal());
vb->UpdateData( coarseverts[0].GetPos(), 0, (int)coarseverts.size() );
Osd::CpuEvaluator::EvalStencils(
vb, Osd::BufferDescriptor(0, 3, 3),
vb, Osd::BufferDescriptor(refiner->GetLevel(0).GetNumVertices()*3, 3, 3),
vertexStencils);
int result = checkVertexBuffer(*refiner, refmesh, vb->BindCpuBuffer(),
vb->GetNumElements());
delete vertexStencils;
delete varyingStencils;
delete vb;
return result;
}
//------------------------------------------------------------------------------
static int
checkMeshCPUGL(FarTopologyRefiner *refiner,
const std::vector<xyzVV>& coarseverts,
xyzmesh * refmesh) {
Far::StencilTable const *vertexStencils;
Far::StencilTable const *varyingStencils;
buildStencilTable(*refiner, &vertexStencils, &varyingStencils);
Osd::CpuGLVertexBuffer *vb = Osd::CpuGLVertexBuffer::Create(3,
refiner->GetNumVerticesTotal());
vb->UpdateData( coarseverts[0].GetPos(), 0, (int)coarseverts.size() );
Osd::CpuEvaluator::EvalStencils(
vb, Osd::BufferDescriptor(0, 3, 3),
vb, Osd::BufferDescriptor(refiner->GetLevel(0).GetNumVertices()*3, 3, 3),
vertexStencils);
int result = checkVertexBuffer(*refiner, refmesh,
vb->BindCpuBuffer(), vb->GetNumElements());
delete vertexStencils;
delete varyingStencils;
delete vb;
return result;
}
//------------------------------------------------------------------------------
static int
checkMesh( char const * msg, std::string const & shape, int levels, Scheme scheme, int backend ) {
int result =0;
printf("- %s (scheme=%d)\n", msg, scheme);
xyzmesh * refmesh =
interpolateHbrVertexData<xyzVV>(shape.c_str(), scheme, levels);
std::vector<xyzVV> farVertexData;
FarTopologyRefiner *refiner =
InterpolateFarVertexData(shape.c_str(), scheme, levels,
farVertexData);
switch (backend) {
case kBackendCPU:
result = checkMeshCPU(refiner, farVertexData, refmesh);
break;
case kBackendCPUGL:
result = checkMeshCPUGL(refiner, farVertexData, refmesh);
break;
}
delete refmesh;
delete refiner;
return result;
}
//------------------------------------------------------------------------------
int checkBackend(int backend, int levels) {
printf("*** checking backend : %s\n", g_BackendNames[backend]);
int total = 0;
#define test_catmark_edgeonly
#define test_catmark_edgecorner
#define test_catmark_flap
#define test_catmark_pyramid
#define test_catmark_pyramid_creases0
#define test_catmark_pyramid_creases1
#define test_catmark_cube
#define test_catmark_cube_creases0
#define test_catmark_cube_creases1
#define test_catmark_cube_corner0
#define test_catmark_cube_corner1
#define test_catmark_cube_corner2
#define test_catmark_cube_corner3
#define test_catmark_cube_corner4
#define test_catmark_dart_edgeonly
#define test_catmark_dart_edgecorner
#define test_catmark_tent
#define test_catmark_tent_creases0
#define test_catmark_tent_creases1
// hedits don't work.
//#define test_catmark_square_hedit0
//#define test_catmark_square_hedit1
//#define test_catmark_square_hedit2
//#define test_catmark_square_hedit3
#define test_loop_triangle_edgeonly
#define test_loop_triangle_edgecorner
#define test_loop_icosahedron
#define test_loop_cube
#define test_loop_cube_creases0
#define test_loop_cube_creases1
#define test_bilinear_cube
#ifdef test_catmark_edgeonly
#include "../shapes/catmark_edgeonly.h"
total += checkMesh( "test_catmark_edgeonly", catmark_edgeonly, levels, kCatmark, backend );
#endif
#ifdef test_catmark_edgecorner
#include "../shapes/catmark_edgecorner.h"
total += checkMesh( "test_catmark_edgeonly", catmark_edgecorner, levels, kCatmark, backend );
#endif
#ifdef test_catmark_flap
#include "../shapes/catmark_flap.h"
total += checkMesh( "test_catmark_flap", catmark_flap, levels, kCatmark, backend );
#endif
#ifdef test_catmark_pyramid
#include "../shapes/catmark_pyramid.h"
total += checkMesh( "test_catmark_pyramid", catmark_pyramid, levels, kCatmark, backend );
#endif
#ifdef test_catmark_pyramid_creases0
#include "../shapes/catmark_pyramid_creases0.h"
total += checkMesh( "test_catmark_pyramid_creases0", catmark_pyramid_creases0, levels, kCatmark, backend );
#endif
#ifdef test_catmark_pyramid_creases1
#include "../shapes/catmark_pyramid_creases1.h"
total += checkMesh( "test_catmark_pyramid_creases1", catmark_pyramid_creases1, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube
#include "../shapes/catmark_cube.h"
total += checkMesh( "test_catmark_cube", catmark_cube, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube_creases0
#include "../shapes/catmark_cube_creases0.h"
total += checkMesh( "test_catmark_cube_creases0", catmark_cube_creases0, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube_creases1
#include "../shapes/catmark_cube_creases1.h"
total += checkMesh( "test_catmark_cube_creases1", catmark_cube_creases1, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube_corner0
#include "../shapes/catmark_cube_corner0.h"
total += checkMesh( "test_catmark_cube_corner0", catmark_cube_corner0, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube_corner1
#include "../shapes/catmark_cube_corner1.h"
total += checkMesh( "test_catmark_cube_corner1", catmark_cube_corner1, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube_corner2
#include "../shapes/catmark_cube_corner2.h"
total += checkMesh( "test_catmark_cube_corner2", catmark_cube_corner2, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube_corner3
#include "../shapes/catmark_cube_corner3.h"
total += checkMesh( "test_catmark_cube_corner3", catmark_cube_corner3, levels, kCatmark, backend );
#endif
#ifdef test_catmark_cube_corner4
#include "../shapes/catmark_cube_corner4.h"
total += checkMesh( "test_catmark_cube_corner4", catmark_cube_corner4, levels, kCatmark, backend );
#endif
#ifdef test_catmark_dart_edgecorner
#include "../shapes/catmark_dart_edgecorner.h"
total += checkMesh( "test_catmark_dart_edgecorner", catmark_dart_edgecorner, levels, kCatmark, backend );
#endif
#ifdef test_catmark_dart_edgeonly
#include "../shapes/catmark_dart_edgeonly.h"
total += checkMesh( "test_catmark_dart_edgeonly", catmark_dart_edgeonly, levels, kCatmark, backend );
#endif
#ifdef test_catmark_tent
#include "../shapes/catmark_tent.h"
total += checkMesh( "test_catmark_tent", catmark_tent, levels, kCatmark, backend );
#endif
#ifdef test_catmark_tent_creases0
#include "../shapes/catmark_tent_creases0.h"
total += checkMesh( "test_catmark_tent_creases0", catmark_tent_creases0, levels, kCatmark, backend );
#endif
#ifdef test_catmark_tent_creases1
#include "../shapes/catmark_tent_creases1.h"
total += checkMesh( "test_catmark_tent_creases1", catmark_tent_creases1, levels, kCatmark, backend );
#endif
#ifdef test_catmark_square_hedit0
#include "../shapes/catmark_square_hedit0.h"
total += checkMesh( "test_catmark_square_hedit0", catmark_square_hedit0, levels, kCatmark, backend );
#endif
#ifdef test_catmark_square_hedit1
#include "../shapes/catmark_square_hedit1.h"
total += checkMesh( "test_catmark_square_hedit1", catmark_square_hedit1, levels, kCatmark, backend );
#endif
#ifdef test_catmark_square_hedit2
#include "../shapes/catmark_square_hedit2.h"
total += checkMesh( "test_catmark_square_hedit2", catmark_square_hedit2, levels, kCatmark, backend );
#endif
#ifdef test_catmark_square_hedit3
#include "../shapes/catmark_square_hedit3.h"
total += checkMesh( "test_catmark_square_hedit3", catmark_square_hedit3, levels, kCatmark, backend );
#endif
#ifdef test_loop_triangle_edgeonly
#include "../shapes/loop_triangle_edgeonly.h"
total += checkMesh( "test_loop_triangle_edgeonly", loop_triangle_edgeonly, levels, kLoop, backend );
#endif
#ifdef test_loop_triangle_edgecorner
#include "../shapes/loop_triangle_edgecorner.h"
total += checkMesh( "test_loop_triangle_edgecorner", loop_triangle_edgecorner, levels, kLoop, backend );
#endif
#ifdef test_loop_saddle_edgeonly
#include "../shapes/loop_saddle_edgeonly.h"
total += checkMesh( "test_loop_saddle_edgeonly", loop_saddle_edgeonly, levels, kLoop, backend );
#endif
#ifdef test_loop_saddle_edgecorner
#include "../shapes/loop_saddle_edgecorner.h"
total += checkMesh( "test_loop_saddle_edgecorner", loop_saddle_edgecorner, levels, kLoop, backend );
#endif
#ifdef test_loop_icosahedron
#include "../shapes/loop_icosahedron.h"
total += checkMesh( "test_loop_icosahedron", loop_icosahedron, levels, kLoop, backend );
#endif
#ifdef test_loop_cube
#include "../shapes/loop_cube.h"
total += checkMesh( "test_loop_cube", loop_cube, levels, kLoop, backend );
#endif
#ifdef test_loop_cube_creases0
#include "../shapes/loop_cube_creases0.h"
total += checkMesh( "test_loop_cube_creases0", loop_cube_creases0,levels, kLoop, backend );
#endif
#ifdef test_loop_cube_creases1
#include "../shapes/loop_cube_creases1.h"
total += checkMesh( "test_loop_cube_creases1", loop_cube_creases1, levels, kLoop, backend );
#endif
#ifdef test_bilinear_cube
#include "../shapes/bilinear_cube.h"
total += checkMesh( "test_bilinear_cube", bilinear_cube, levels, kBilinear, backend );
#endif
return total;
}
//------------------------------------------------------------------------------
static void
usage(char ** argv) {
printf("%s [<options>]\n\n", argv[0]);
printf(" Options :\n");
printf(" -compute <backend>\n");
printf(" Compute backend applied (");
for (int i=0; i < kBackendCount; ++i)
printf("%s ", g_BackendNames[i]);
printf(").\n");
printf(" -help / -h\n");
printf(" Displays usage information.");
}
//------------------------------------------------------------------------------
static void
parseArgs(int argc, char ** argv) {
for (int i=1; i<argc; ++i) {
if (not strcmp(argv[i],"-compute")) {
const char * backend = NULL;
if (i<(argc-1))
backend = argv[++i];
if (not strcmp(backend, "all")) {
g_Backend = -1;
} else {
bool found = false;
for (int i = 0; i < kBackendCount; ++i) {
if (not strcmp(backend, g_BackendNames[i])) {
g_Backend = i;
found = true;
break;
}
}
if (not found) {
printf("-compute : must be 'all' or one of: ");
for (int i = 0; i < kBackendCount; ++i)
printf("%s ", g_BackendNames[i]);
printf("\n");
exit(0);
}
}
} else if ( (not strcmp(argv[i],"-help")) or
(not strcmp(argv[i],"-h")) ) {
usage(argv);
exit(1);
} else {
usage(argv);
exit(0);
}
}
}
//------------------------------------------------------------------------------
int
main(int argc, char ** argv) {
// Run with no args tests default (CPU) backend.
// "-backend all" tests all available backends.
// "-backend <name>" tests one backend.
parseArgs(argc, argv);
// Make sure we have an OpenGL context : create dummy GLFW window
if (not glfwInit()) {
printf("Failed to initialize GLFW\n");
return 1;
}
int width=10, height=10;
static const char windowTitle[] = "OpenSubdiv OSD regression";
if (not (g_window=glfwCreateWindow(width, height, windowTitle, NULL, NULL))) {
printf("Failed to open window.\n");
glfwTerminate();
return 1;
}
glfwMakeContextCurrent(g_window);
#if defined(OSD_USES_GLEW)
if (GLenum r = glewInit() != GLEW_OK) {
printf("Failed to initialize glew. error = %d\n", r);
exit(1);
}
#endif
printf("precision : %f\n",PRECISION);
int levels=5, total=0;
if (g_Backend == -1) {
for (int i = 0; i < kBackendCount; ++i)
total += checkBackend (i, levels);
} else {
total += checkBackend (g_Backend, levels);
}
glfwTerminate();
if (total==0)
printf("All tests passed.\n");
else
printf("Total failures : %d\n", total);
}
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