mirror of https://github.com/vitalif/openscad
259 lines
6.8 KiB
C++
259 lines
6.8 KiB
C++
#include <GL/glew.h>
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#include "openscad.h"
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#include "builtin.h"
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#include "context.h"
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#include "node.h"
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#include "module.h"
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#include "polyset.h"
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#include "Tree.h"
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#include "CSGTermEvaluator.h"
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#include "CGALEvaluator.h"
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#include "PolySetCGALEvaluator.h"
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#include "OpenCSGRenderer.h"
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#include "ThrownTogetherRenderer.h"
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#include "csgterm.h"
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#include "OffscreenView.h"
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#include <QApplication>
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#include <QFile>
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#include <QDir>
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#include <QSet>
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#include <QTimer>
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using std::cerr;
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using std::cout;
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QString commandline_commands;
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QString librarydir;
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QSet<QString> dependencies;
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const char *make_command = NULL;
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//#define DEBUG
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void handle_dep(QString filename)
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{
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if (filename.startsWith("/"))
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dependencies.insert(filename);
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else
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dependencies.insert(QDir::currentPath() + QString("/") + filename);
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if (!QFile(filename).exists() && make_command) {
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char buffer[4096];
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snprintf(buffer, 4096, "%s '%s'", make_command, filename.replace("'", "'\\''").toUtf8().data());
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system(buffer); // FIXME: Handle error
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}
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}
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// static void renderfunc(void *vp)
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// {
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// glClearColor(1.0, 0.0, 0.0, 0.0);
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// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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// }
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struct CsgInfo
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{
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CSGTerm *root_norm_term; // Normalized CSG products
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class CSGChain *root_chain;
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std::vector<CSGTerm*> highlight_terms;
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CSGChain *highlights_chain;
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std::vector<CSGTerm*> background_terms;
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CSGChain *background_chain;
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OffscreenView *glview;
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};
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int main(int argc, char *argv[])
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{
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <file.scad>\n", argv[0]);
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exit(1);
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}
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const char *filename = argv[1];
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initialize_builtin_functions();
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initialize_builtin_modules();
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QApplication app(argc, argv);
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QDir original_path = QDir::current();
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QString currentdir = QDir::currentPath();
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QDir libdir(QApplication::instance()->applicationDirPath());
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#ifdef Q_WS_MAC
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libdir.cd("../Resources"); // Libraries can be bundled
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if (!libdir.exists("libraries")) libdir.cd("../../..");
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#elif defined(Q_OS_UNIX)
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if (libdir.cd("../share/openscad/libraries")) {
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librarydir = libdir.path();
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} else
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if (libdir.cd("../../share/openscad/libraries")) {
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librarydir = libdir.path();
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} else
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if (libdir.cd("../../libraries")) {
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librarydir = libdir.path();
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} else
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#endif
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if (libdir.cd("libraries")) {
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librarydir = libdir.path();
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}
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Context root_ctx;
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root_ctx.functions_p = &builtin_functions;
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root_ctx.modules_p = &builtin_modules;
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root_ctx.set_variable("$fn", Value(0.0));
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root_ctx.set_variable("$fs", Value(1.0));
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root_ctx.set_variable("$fa", Value(12.0));
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root_ctx.set_variable("$t", Value(0.0));
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Value zero3;
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zero3.type = Value::VECTOR;
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zero3.append(new Value(0.0));
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zero3.append(new Value(0.0));
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zero3.append(new Value(0.0));
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root_ctx.set_variable("$vpt", zero3);
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root_ctx.set_variable("$vpr", zero3);
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AbstractModule *root_module;
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ModuleInstantiation root_inst;
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AbstractNode *root_node;
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QFileInfo fileInfo(filename);
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handle_dep(filename);
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FILE *fp = fopen(filename, "rt");
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if (!fp) {
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fprintf(stderr, "Can't open input file `%s'!\n", filename);
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exit(1);
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} else {
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QString text;
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char buffer[513];
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int ret;
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while ((ret = fread(buffer, 1, 512, fp)) > 0) {
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buffer[ret] = 0;
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text += buffer;
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}
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fclose(fp);
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root_module = parse((text+commandline_commands).toAscii().data(), fileInfo.absolutePath().toLocal8Bit(), false);
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if (!root_module) {
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exit(1);
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}
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}
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QDir::setCurrent(fileInfo.absolutePath());
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AbstractNode::resetIndexCounter();
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root_node = root_module->evaluate(&root_ctx, &root_inst);
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Tree tree(root_node);
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CsgInfo csgInfo;
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QHash<std::string, CGAL_Nef_polyhedron> cache;
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CGALEvaluator cgalevaluator(cache, tree);
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PolySetCGALEvaluator psevaluator(cgalevaluator);
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CSGTermEvaluator evaluator(tree);
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CSGTerm *root_raw_term = evaluator.evaluateCSGTerm(*root_node,
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csgInfo.highlight_terms,
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csgInfo.background_terms);
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if (!root_raw_term) {
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cerr << "Error: CSG generation failed! (no top level object found)\n";
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return 1;
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}
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csgInfo.root_norm_term = root_raw_term->link();
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// CSG normalization
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while (1) {
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CSGTerm *n = csgInfo.root_norm_term->normalize();
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csgInfo.root_norm_term->unlink();
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if (csgInfo.root_norm_term == n)
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break;
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csgInfo.root_norm_term = n;
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}
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assert(csgInfo.root_norm_term);
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csgInfo.root_chain = new CSGChain();
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csgInfo.root_chain->import(csgInfo.root_norm_term);
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if (csgInfo.highlight_terms.size() > 0) {
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cerr << "Compiling highlights (" << csgInfo.highlight_terms.size() << " CSG Trees)...\n";
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csgInfo.highlights_chain = new CSGChain();
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for (unsigned int i = 0; i < csgInfo.highlight_terms.size(); i++) {
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while (1) {
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CSGTerm *n = csgInfo.highlight_terms[i]->normalize();
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csgInfo.highlight_terms[i]->unlink();
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if (csgInfo.highlight_terms[i] == n)
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break;
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csgInfo.highlight_terms[i] = n;
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}
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csgInfo.highlights_chain->import(csgInfo.highlight_terms[i]);
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}
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}
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if (csgInfo.background_terms.size() > 0) {
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cerr << "Compiling background (" << csgInfo.background_terms.size() << " CSG Trees)...\n";
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csgInfo.background_chain = new CSGChain();
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for (unsigned int i = 0; i < csgInfo.background_terms.size(); i++) {
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while (1) {
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CSGTerm *n = csgInfo.background_terms[i]->normalize();
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csgInfo.background_terms[i]->unlink();
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if (csgInfo.background_terms[i] == n)
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break;
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csgInfo.background_terms[i] = n;
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}
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csgInfo.background_chain->import(csgInfo.background_terms[i]);
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}
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}
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QDir::setCurrent(original_path.absolutePath());
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csgInfo.glview = new OffscreenView(512,512);
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BoundingBox bbox = csgInfo.root_chain->getBoundingBox();
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Vector3d center = (bbox.min() + bbox.max()) / 2;
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double radius = (bbox.max() - bbox.min()).norm() / 2;
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Vector3d cameradir(1, 1, -0.5);
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Vector3d camerapos = center - radius*1.5*cameradir;
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csgInfo.glview->setCamera(camerapos, center);
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glewInit();
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#ifdef DEBUG
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cout << "GLEW version " << glewGetString(GLEW_VERSION) << "\n";
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cout << (const char *)glGetString(GL_RENDERER) << "(" << (const char *)glGetString(GL_VENDOR) << ")\n"
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<< "OpenGL version " << (const char *)glGetString(GL_VERSION) << "\n";
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cout << "Extensions: " << (const char *)glGetString(GL_EXTENSIONS) << "\n";
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if (GLEW_ARB_framebuffer_object) {
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cout << "ARB_FBO supported\n";
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}
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if (GLEW_EXT_framebuffer_object) {
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cout << "EXT_FBO supported\n";
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}
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if (GLEW_EXT_packed_depth_stencil) {
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cout << "EXT_packed_depth_stencil\n";
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}
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#endif
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OpenCSGRenderer opencsgRenderer(csgInfo.root_chain, csgInfo.highlights_chain, csgInfo.background_chain, csgInfo.glview->shaderinfo);
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ThrownTogetherRenderer thrownTogetherRenderer(csgInfo.root_chain, csgInfo.highlights_chain, csgInfo.background_chain);
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// csgInfo.glview->setRenderer(&thrownTogetherRenderer);
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csgInfo.glview->setRenderer(&opencsgRenderer);
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csgInfo.glview->paintGL();
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csgInfo.glview->save("/dev/stdout");
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destroy_builtin_functions();
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destroy_builtin_modules();
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return 0;
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}
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