diff options
Diffstat (limited to 'tests/opencsgtest.cc')
| -rw-r--r-- | tests/opencsgtest.cc | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/tests/opencsgtest.cc b/tests/opencsgtest.cc new file mode 100644 index 0000000..026978d --- /dev/null +++ b/tests/opencsgtest.cc @@ -0,0 +1,255 @@ +#include <GL/glew.h> +#include "openscad.h" +#include "builtin.h" +#include "context.h" +#include "node.h" +#include "module.h" +#include "polyset.h" +#include "Tree.h" +#include "CSGTermEvaluator.h" +#include "CGALEvaluator.h" +#include "PolySetCGALEvaluator.h" + +#include "OpenCSGRenderer.h" +#include "ThrownTogetherRenderer.h" + +#include "csgterm.h" +#include "OffscreenView.h" + +#include <QApplication> +#include <QFile> +#include <QDir> +#include <QSet> +#include <QTimer> + +using std::cerr; +using std::cout; + +QString commandline_commands; +QString librarydir; +QSet<QString> dependencies; +const char *make_command = NULL; + +//#define DEBUG + +void handle_dep(QString filename) +{ + if (filename.startsWith("/")) + dependencies.insert(filename); + else + dependencies.insert(QDir::currentPath() + QString("/") + filename); + if (!QFile(filename).exists() && make_command) { + char buffer[4096]; + snprintf(buffer, 4096, "%s '%s'", make_command, filename.replace("'", "'\\''").toUtf8().data()); + system(buffer); // FIXME: Handle error + } +} + +// static void renderfunc(void *vp) +// { +// glClearColor(1.0, 0.0, 0.0, 0.0); +// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); +// } + +struct CsgInfo +{ + CSGTerm *root_norm_term; // Normalized CSG products + class CSGChain *root_chain; + std::vector<CSGTerm*> highlight_terms; + CSGChain *highlights_chain; + std::vector<CSGTerm*> background_terms; + CSGChain *background_chain; + OffscreenView *glview; +}; + +int main(int argc, char *argv[]) +{ + if (argc != 2) { + fprintf(stderr, "Usage: %s <file.scad>\n", argv[0]); + exit(1); + } + + const char *filename = argv[1]; + + initialize_builtin_functions(); + initialize_builtin_modules(); + + QApplication app(argc, argv); + + QDir original_path = QDir::current(); + + QString currentdir = QDir::currentPath(); + + QDir libdir(QApplication::instance()->applicationDirPath()); +#ifdef Q_WS_MAC + libdir.cd("../Resources"); // Libraries can be bundled + if (!libdir.exists("libraries")) libdir.cd("../../.."); +#elif defined(Q_OS_UNIX) + if (libdir.cd("../share/openscad/libraries")) { + librarydir = libdir.path(); + } else + if (libdir.cd("../../share/openscad/libraries")) { + librarydir = libdir.path(); + } else + if (libdir.cd("../../libraries")) { + librarydir = libdir.path(); + } else +#endif + if (libdir.cd("libraries")) { + librarydir = libdir.path(); + } + + Context root_ctx; + root_ctx.functions_p = &builtin_functions; + root_ctx.modules_p = &builtin_modules; + root_ctx.set_variable("$fn", Value(0.0)); + root_ctx.set_variable("$fs", Value(1.0)); + root_ctx.set_variable("$fa", Value(12.0)); + root_ctx.set_variable("$t", Value(0.0)); + + Value zero3; + zero3.type = Value::VECTOR; + zero3.append(new Value(0.0)); + zero3.append(new Value(0.0)); + zero3.append(new Value(0.0)); + root_ctx.set_variable("$vpt", zero3); + root_ctx.set_variable("$vpr", zero3); + + + AbstractModule *root_module; + ModuleInstantiation root_inst; + AbstractNode *root_node; + + QFileInfo fileInfo(filename); + handle_dep(filename); + FILE *fp = fopen(filename, "rt"); + if (!fp) { + fprintf(stderr, "Can't open input file `%s'!\n", filename); + exit(1); + } else { + QString text; + char buffer[513]; + int ret; + while ((ret = fread(buffer, 1, 512, fp)) > 0) { + buffer[ret] = 0; + text += buffer; + } + fclose(fp); + root_module = parse((text+commandline_commands).toAscii().data(), fileInfo.absolutePath().toLocal8Bit(), false); + if (!root_module) { + exit(1); + } + } + + QDir::setCurrent(fileInfo.absolutePath()); + + AbstractNode::resetIndexCounter(); + root_node = root_module->evaluate(&root_ctx, &root_inst); + + Tree tree(root_node); + + CsgInfo csgInfo; + QHash<std::string, CGAL_Nef_polyhedron> cache; + CGALEvaluator cgalevaluator(cache, tree); + PolySetCGALEvaluator psevaluator(cgalevaluator); + CSGTermEvaluator evaluator(tree); + CSGTerm *root_raw_term = evaluator.evaluateCSGTerm(*root_node, + csgInfo.highlight_terms, + csgInfo.background_terms); + + if (!root_raw_term) { + cerr << "Error: CSG generation failed! (no top level object found)\n"; + return 1; + } + + csgInfo.root_norm_term = root_raw_term->link(); + + // CSG normalization + while (1) { + CSGTerm *n = csgInfo.root_norm_term->normalize(); + csgInfo.root_norm_term->unlink(); + if (csgInfo.root_norm_term == n) + break; + csgInfo.root_norm_term = n; + } + + assert(csgInfo.root_norm_term); + + csgInfo.root_chain = new CSGChain(); + csgInfo.root_chain->import(csgInfo.root_norm_term); + + if (csgInfo.highlight_terms.size() > 0) { + cerr << "Compiling highlights (" << csgInfo.highlight_terms.size() << " CSG Trees)...\n"; + + csgInfo.highlights_chain = new CSGChain(); + for (unsigned int i = 0; i < csgInfo.highlight_terms.size(); i++) { + while (1) { + CSGTerm *n = csgInfo.highlight_terms[i]->normalize(); + csgInfo.highlight_terms[i]->unlink(); + if (csgInfo.highlight_terms[i] == n) + break; + csgInfo.highlight_terms[i] = n; + } + csgInfo.highlights_chain->import(csgInfo.highlight_terms[i]); + } + } + + if (csgInfo.background_terms.size() > 0) { + cerr << "Compiling background (" << csgInfo.background_terms.size() << " CSG Trees)...\n"; + + csgInfo.background_chain = new CSGChain(); + for (unsigned int i = 0; i < csgInfo.background_terms.size(); i++) { + while (1) { + CSGTerm *n = csgInfo.background_terms[i]->normalize(); + csgInfo.background_terms[i]->unlink(); + if (csgInfo.background_terms[i] == n) + break; + csgInfo.background_terms[i] = n; + } + csgInfo.background_chain->import(csgInfo.background_terms[i]); + } + } + + QDir::setCurrent(original_path.absolutePath()); + + csgInfo.glview = new OffscreenView(512,512); + BoundingBox bbox = csgInfo.root_chain->getBoundingBox(); + + Vector3d center = (bbox.min() + bbox.max()) / 2; + double radius = (bbox.max() - bbox.min()).norm() / 2; + csgInfo.glview->setCamera(center[0], center[1] - 2 * radius, center[2], + center[0], center[1], center[2]); + + glewInit(); +#ifdef DEBUG + cout << "GLEW version " << glewGetString(GLEW_VERSION) << "\n"; + cout << (const char *)glGetString(GL_RENDERER) << "(" << (const char *)glGetString(GL_VENDOR) << ")\n" + << "OpenGL version " << (const char *)glGetString(GL_VERSION) << "\n"; + cout << "Extensions: " << (const char *)glGetString(GL_EXTENSIONS) << "\n"; + + + if (GLEW_ARB_framebuffer_object) { + cout << "ARB_FBO supported\n"; + } + if (GLEW_EXT_framebuffer_object) { + cout << "EXT_FBO supported\n"; + } + if (GLEW_EXT_packed_depth_stencil) { + cout << "EXT_packed_depth_stencil\n"; + } +#endif + + OpenCSGRenderer opencsgRenderer(csgInfo.root_chain, csgInfo.highlights_chain, csgInfo.background_chain, csgInfo.glview->shaderinfo); + ThrownTogetherRenderer thrownTogetherRenderer(csgInfo.root_chain, csgInfo.highlights_chain, csgInfo.background_chain); +// csgInfo.glview->setRenderer(&thrownTogetherRenderer); + csgInfo.glview->setRenderer(&opencsgRenderer); + + csgInfo.glview->paintGL(); + + csgInfo.glview->save("/dev/stdout"); + + destroy_builtin_functions(); + destroy_builtin_modules(); + + return 0; +} |