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Diffstat (limited to 'tests/cgalpngtest.cc')
| -rw-r--r-- | tests/cgalpngtest.cc | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/tests/cgalpngtest.cc b/tests/cgalpngtest.cc new file mode 100644 index 0000000..8e3859b --- /dev/null +++ b/tests/cgalpngtest.cc @@ -0,0 +1,234 @@ +/* + * OpenSCAD (www.openscad.at) + * Copyright (C) 2009 Clifford Wolf <clifford@clifford.at> + * + * 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. + * + * As a special exception, you have permission to link this program + * with the CGAL library and distribute executables, as long as you + * follow the requirements of the GNU GPL in regard to all of the + * software in the executable aside from CGAL. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "myqhash.h" +#include "openscad.h" +#include "node.h" +#include "module.h" +#include "polyset.h" +#include "context.h" +#include "value.h" +#include "export.h" +#include "builtin.h" +#include "Tree.h" +#include "CGAL_Nef_polyhedron.h" +#include "CGALEvaluator.h" +#include "PolySetCGALEvaluator.h" +#include "CGALRenderer.h" +#include "CGAL_renderer.h" +#include "cgal.h" +#include "OffscreenView.h" +#include "handle_dep.h" + +#include <QApplication> +#include <QFile> +#include <QDir> +#include <QSet> +#include <QTextStream> +#include <getopt.h> +#include <iostream> +#include <assert.h> +#include <sstream> + +std::string commandline_commands; +QString currentdir; +QString examplesdir; +QString librarydir; + +using std::string; + +// FIXME: enforce some maximum cache size (old version had 100K vertices as limit) +QHash<std::string, CGAL_Nef_polyhedron> cache; + +void cgalTree(Tree &tree) +{ + assert(tree.root()); + + CGALEvaluator evaluator(cache, tree); + Traverser evaluate(evaluator, *tree.root(), Traverser::PRE_AND_POSTFIX); + evaluate.execute(); +} + +AbstractNode *find_root_tag(AbstractNode *n) +{ + foreach(AbstractNode *v, n->children) { + if (v->modinst->tag_root) return v; + if (AbstractNode *vroot = find_root_tag(v)) return vroot; + } + return NULL; +} + +struct CsgInfo +{ + 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, false); + QDir original_path = QDir::current(); + + 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; + + 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 { + std::stringstream text; + char buffer[513]; + int ret; + while ((ret = fread(buffer, 1, 512, fp)) > 0) { + buffer[ret] = 0; + text << buffer; + } + fclose(fp); + text << commandline_commands; + root_module = parse(text.str().c_str(), fileInfo.absolutePath().toLocal8Bit(), false); + if (!root_module) { + exit(1); + } + } + + QDir::setCurrent(fileInfo.absolutePath()); + + AbstractNode::resetIndexCounter(); + AbstractNode *absolute_root_node = root_module->evaluate(&root_ctx, &root_inst); + AbstractNode *root_node; + // Do we have an explicit root node (! modifier)? + if (!(root_node = find_root_tag(absolute_root_node))) root_node = absolute_root_node; + + Tree tree(root_node); + + CsgInfo csgInfo; + QHash<std::string, CGAL_Nef_polyhedron> cache; + CGALEvaluator cgalevaluator(cache, tree); + PolySetCGALEvaluator psevaluator(cgalevaluator); + + CGAL_Nef_polyhedron N = cgalevaluator.evaluateCGALMesh(*root_node); + + QDir::setCurrent(original_path.absolutePath()); + + csgInfo.glview = new OffscreenView(512,512); + + 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 + + CGALRenderer cgalRenderer(N); + + BoundingBox bbox; + if (cgalRenderer.polyhedron) { + CGAL::Bbox_3 cgalbbox = cgalRenderer.polyhedron->bbox(); + bbox = BoundingBox(Vector3d(cgalbbox.xmin(), cgalbbox.ymin(), cgalbbox.zmin()), + Vector3d(cgalbbox.xmax(), cgalbbox.ymax(), cgalbbox.zmax())); + } + else if (cgalRenderer.polyset) { + bbox = cgalRenderer.polyset->getBoundingBox(); + } + Vector3d center = (bbox.min() + bbox.max()) / 2; + double radius = (bbox.max() - bbox.min()).norm() / 2; + + + Vector3d cameradir(1, 1, -0.5); + Vector3d camerapos = center - radius*2*cameradir; + csgInfo.glview->setCamera(camerapos, center); + + + csgInfo.glview->setRenderer(&cgalRenderer); + csgInfo.glview->paintGL(); + csgInfo.glview->save("/dev/stdout"); + + destroy_builtin_functions(); + destroy_builtin_modules(); + + return 0; +} |