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OpenSubdiv/regression/osd_regression/main.cpp
manuelk 3ae50d1c50 Amending Apache license language & file headers. 
New text:

     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.
2013-09-26 12:04:57 -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
#if defined(GLFW_VERSION_3)
#include <GLFW/glfw3.h>
GLFWwindow* g_window=0;
#else
#include <GL/glfw.h>
#endif
#include <stdio.h>
#include <cassert>
#include <far/meshFactory.h>
#include <osd/vertex.h>
#include <osd/cpuVertexBuffer.h>
#include <osd/cpuComputeController.h>
#include <osd/cpuComputeContext.h>
#include <osd/cpuGLVertexBuffer.h>
#ifdef OPENSUBDIV_HAS_CUDA
#endif
#ifdef OPENSUBDIV_HAS_OPENCL
#include <osd/clComputeContext.h>
#include <osd/clComputeController.h>
#include <osd/clGLVertexBuffer.h>
static cl_context g_clContext;
static cl_command_queue g_clQueue;
#include "../../examples/common/clInit.h" // XXXX TODO move file out of examples
#endif
#include "../common/shape_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
//------------------------------------------------------------------------------
enum BackendType {
kBackendCPU = 0, // raw CPU
kBackendCPUGL = 1, // CPU with GL-backed buffer
kBackendCL = 2, // OpenCL
kBackendCount
};
static const char* g_BackendNames[kBackendCount] = {
"CPU",
"CPUGL",
"CL",
};
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 ApplyVertexEdit(OpenSubdiv::FarVertexEdit const & edit) {
const float *src = edit.GetEdit();
switch(edit.GetOperation()) {
case OpenSubdiv::FarVertexEdit::Set:
_pos[0] = src[0];
_pos[1] = src[1];
_pos[2] = src[2];
break;
case OpenSubdiv::FarVertexEdit::Add:
_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::HbrMesh<OpenSubdiv::OsdVertex> OsdHbrMesh;
typedef OpenSubdiv::HbrVertex<OpenSubdiv::OsdVertex> OsdHbrVertex;
typedef OpenSubdiv::HbrFace<OpenSubdiv::OsdVertex> OsdHbrFace;
typedef OpenSubdiv::HbrHalfedge<OpenSubdiv::OsdVertex> OsdHbrHalfedge;
//------------------------------------------------------------------------------
// Returns true if a vertex or any of its parents is on a boundary
bool
VertexOnBoundary( xyzvertex const * v ) {
if (not v)
return false;
if (v->OnBoundary())
return true;
xyzvertex const * pv = v->GetParentVertex();
if (pv)
return VertexOnBoundary(pv);
else {
xyzhalfedge const * pe = v->GetParentEdge();
if (pe) {
return VertexOnBoundary(pe->GetOrgVertex()) or
VertexOnBoundary(pe->GetDestVertex());
} else {
xyzface const * pf = v->GetParentFace(), * rootf = pf;
while (pf) {
pf = pf->GetParent();
if (pf)
rootf=pf;
}
if (rootf)
for (int i=0; i<rootf->GetNumVertices(); ++i)
if (rootf->GetVertex(i)->OnBoundary())
return true;
}
}
return false;
}
//------------------------------------------------------------------------------
int
checkVertexBuffer( xyzmesh * hmesh, const float * vbData, int numElements, std::vector<int> const & remap) {
int count=0;
float deltaAvg[3] = {0.0f, 0.0f, 0.0f},
deltaCnt[3] = {0.0f, 0.0f, 0.0f};
int nverts = hmesh->GetNumVertices();
for (int i=0; i<nverts; ++i) {
xyzvertex * hv = hmesh->GetVertex(i);
const float * ov = & vbData[ remap[ hv->GetID() ] * numElements ];
// boundary interpolation rules set to "none" produce "undefined" vertices on
// boundary vertices : far does not match hbr for those, so skip comparison.
if ( hmesh->GetInterpolateBoundaryMethod()==xyzmesh::k_InterpolateBoundaryNone and
VertexOnBoundary(hv) )
continue;
if ( hv->GetData().GetPos()[0] != ov[0] )
deltaCnt[0]++;
if ( hv->GetData().GetPos()[1] != ov[1] )
deltaCnt[1]++;
if ( hv->GetData().GetPos()[2] != ov[2] )
deltaCnt[2]++;
float delta[3] = { hv->GetData().GetPos()[0] - ov[0],
hv->GetData().GetPos()[1] - ov[1],
hv->GetData().GetPos()[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, hv->GetData().GetPos()[0],
hv->GetData().GetPos()[1],
hv->GetData().GetPos()[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
refine( xyzmesh * mesh, int maxlevel ) {
for (int l=0; l<maxlevel; ++l ) {
int nfaces = mesh->GetNumFaces();
for (int i=0; i<nfaces; ++i) {
xyzface * f = mesh->GetFace(i);
if (f->GetDepth()==l)
f->Refine();
}
}
}
//------------------------------------------------------------------------------
static int
checkMeshCPU( OpenSubdiv::FarMesh<OpenSubdiv::OsdVertex>* farmesh,
const std::vector<float>& coarseverts,
xyzmesh * refmesh,
const std::vector<int>& remap) {
static OpenSubdiv::OsdCpuComputeController *controller = new OpenSubdiv::OsdCpuComputeController();
OpenSubdiv::OsdCpuComputeContext *context = OpenSubdiv::OsdCpuComputeContext::Create(farmesh);
OpenSubdiv::OsdCpuVertexBuffer * vb = OpenSubdiv::OsdCpuVertexBuffer::Create(3, farmesh->GetNumVertices());
vb->UpdateData( & coarseverts[0], 0, (int)coarseverts.size()/3 );
controller->Refine( context, farmesh->GetKernelBatches(), vb );
return checkVertexBuffer(refmesh, vb->BindCpuBuffer(), vb->GetNumElements(), remap);
}
//------------------------------------------------------------------------------
static int
checkMeshCPUGL( OpenSubdiv::FarMesh<OpenSubdiv::OsdVertex>* farmesh,
const std::vector<float>& coarseverts,
xyzmesh * refmesh,
const std::vector<int>& remap) {
static OpenSubdiv::OsdCpuComputeController *controller = new OpenSubdiv::OsdCpuComputeController();
OpenSubdiv::OsdCpuComputeContext *context = OpenSubdiv::OsdCpuComputeContext::Create(farmesh);
OpenSubdiv::OsdCpuGLVertexBuffer * vb = OpenSubdiv::OsdCpuGLVertexBuffer::Create(3, farmesh->GetNumVertices());
vb->UpdateData( & coarseverts[0], 0, (int)coarseverts.size()/3 );
controller->Refine( context, farmesh->GetKernelBatches(), vb );
return checkVertexBuffer(refmesh, vb->BindCpuBuffer(), vb->GetNumElements(), remap);
}
//------------------------------------------------------------------------------
static int
checkMeshCL( OpenSubdiv::FarMesh<OpenSubdiv::OsdVertex>* farmesh,
const std::vector<float>& coarseverts,
xyzmesh * refmesh,
const std::vector<int>& remap ) {
#ifdef OPENSUBDIV_HAS_OPENCL
static OpenSubdiv::OsdCLComputeController *controller = new OpenSubdiv::OsdCLComputeController(g_clContext, g_clQueue);
OpenSubdiv::OsdCLComputeContext *context = OpenSubdiv::OsdCLComputeContext::Create(farmesh, g_clContext);
OpenSubdiv::OsdCLGLVertexBuffer * vb = OpenSubdiv::OsdCLGLVertexBuffer::Create(3, farmesh->GetNumVertices(), g_clContext);
vb->UpdateData( & coarseverts[0], 0, (int)coarseverts.size()/3, g_clQueue );
controller->Refine( context, farmesh->GetKernelBatches(), vb );
// read data back from CL buffer
size_t dataSize = vb->GetNumVertices() * vb->GetNumElements();
float* data = new float[dataSize];
clEnqueueReadBuffer (g_clQueue, vb->BindCLBuffer(g_clQueue), CL_TRUE, 0, dataSize * sizeof(float), data, 0, NULL, NULL);
int result = checkVertexBuffer(refmesh, data, vb->GetNumElements(), remap);
delete[] data;
return result;
#else
return 0;
#endif
}
//------------------------------------------------------------------------------
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 = simpleHbr<xyzVV>(shape.c_str(), scheme, 0);
refine( refmesh, levels );
std::vector<float> coarseverts;
OsdHbrMesh * hmesh = simpleHbr<OpenSubdiv::OsdVertex>(shape.c_str(), scheme, coarseverts);
OpenSubdiv::FarMeshFactory<OpenSubdiv::OsdVertex> meshFactory(hmesh, levels);
OpenSubdiv::FarMesh<OpenSubdiv::OsdVertex> * farmesh = meshFactory.Create();
std::vector<int> remap = meshFactory.GetRemappingTable();
switch (backend) {
case kBackendCPU : result = checkMeshCPU(farmesh, coarseverts, refmesh, remap); break;
case kBackendCPUGL : result = checkMeshCPUGL(farmesh, coarseverts, refmesh, remap); break;
case kBackendCL : result = checkMeshCL(farmesh, coarseverts, refmesh, remap); break;
}
delete hmesh;
return result;
}
//------------------------------------------------------------------------------
int checkBackend(int backend, int levels) {
printf("*** checking backend : %s\n", g_BackendNames[backend]);
if (backend == kBackendCL) {
#ifdef OPENSUBDIV_HAS_OPENCL
if (initCL(&g_clContext, &g_clQueue) == false) {
printf(" Cannot initialize OpenCL, skipping...\n");
return 0;
}
#else
printf(" No OpenCL available, skipping...\n");
return 0;
#endif
}
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
#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
if (backend == kBackendCL) {
#ifdef OPENSUBDIV_HAS_OPENCL
uninitCL(g_clContext, g_clQueue);
#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;
#if GLFW_VERSION_MAJOR>=3
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);
#else
if (glfwOpenWindow(width, height, 8, 8, 8, 8, 24, 8,GLFW_WINDOW) == GL_FALSE) {
printf("Failed to open window.\n");
glfwTerminate();
return 1;
}
#endif
#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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