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/*
* 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;
void cgalTree(Tree &tree)
{
assert(tree.root());
CGALEvaluator evaluator(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;
CGALEvaluator cgalevaluator(tree);
PolySetCGALEvaluator psevaluator(cgalevaluator);
CGAL_Nef_polyhedron N = cgalevaluator.evaluateCGALMesh(*root_node);
QDir::setCurrent(original_path.absolutePath());
// match with csgtest ends
try {
csgInfo.glview = new OffscreenView(512,512);
} catch (int error) {
fprintf(stderr,"Can't create OpenGL OffscreenView. exiting.\n");
exit(1);
}
GLenum err = glewInit();
if (GLEW_OK != err) {
fprintf(stderr, "Unable to init GLEW: %s\n", glewGetErrorString(err));
exit(1);
}
#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;
}
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