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2a12b21ab2
OpenSubdiv/regression/osd_regression/main.cpp
David G Yu 2a12b21ab2 Removed mutex implementation. 
We added this to support earlier versions
of hbr, but it is no longer needed.
2013-05-07 11:27:14 -07:00

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//
// Copyright (C) Pixar. All rights reserved.
//
// This license governs use of the accompanying software. If you
// use the software, you accept this license. If you do not accept
// the license, do not use the software.
//
// 1. Definitions
// The terms "reproduce," "reproduction," "derivative works," and
// "distribution" have the same meaning here as under U.S.
// copyright law. A "contribution" is the original software, or
// any additions or changes to the software.
// A "contributor" is any person or entity that distributes its
// contribution under this license.
// "Licensed patents" are a contributor's patent claims that read
// directly on its contribution.
//
// 2. Grant of Rights
// (A) Copyright Grant- Subject to the terms of this license,
// including the license conditions and limitations in section 3,
// each contributor grants you a non-exclusive, worldwide,
// royalty-free copyright license to reproduce its contribution,
// prepare derivative works of its contribution, and distribute
// its contribution or any derivative works that you create.
// (B) Patent Grant- Subject to the terms of this license,
// including the license conditions and limitations in section 3,
// each contributor grants you a non-exclusive, worldwide,
// royalty-free license under its licensed patents to make, have
// made, use, sell, offer for sale, import, and/or otherwise
// dispose of its contribution in the software or derivative works
// of the contribution in the software.
//
// 3. Conditions and Limitations
// (A) No Trademark License- This license does not grant you
// rights to use any contributor's name, logo, or trademarks.
// (B) If you bring a patent claim against any contributor over
// patents that you claim are infringed by the software, your
// patent license from such contributor to the software ends
// automatically.
// (C) If you distribute any portion of the software, you must
// retain all copyright, patent, trademark, and attribution
// notices that are present in the software.
// (D) If you distribute any portion of the software in source
// code form, you may do so only under this license by including a
// complete copy of this license with your distribution. If you
// distribute any portion of the software in compiled or object
// code form, you may only do so under a license that complies
// with this license.
// (E) The software is licensed "as-is." You bear the risk of
// using it. The contributors give no express warranties,
// guarantees or conditions. You may have additional consumer
// rights under your local laws which this license cannot change.
// To the extent permitted under your local laws, the contributors
// exclude the implied warranties of merchantability, fitness for
// a particular purpose and non-infringement.
//
#if defined(__APPLE__)
#include <OpenGL/gl3.h>
#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 <GL/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
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 not defined(__APPLE__)
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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