mirror of https://github.com/vitalif/openscad
325 lines
9.4 KiB
C++
325 lines
9.4 KiB
C++
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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 "CSGTermRenderer.h"
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#include "CGALRenderer.h"
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#include "PolySetCGALRenderer.h"
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#include "csgterm.h"
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#include "render-opencsg.h"
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#include <GL/glew.h>
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#include "GLView.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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using std::cerr;
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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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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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GLView *glview;
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};
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static void renderGLThrownTogetherChain(CSGChain *chain, bool highlight, bool background, bool fberror)
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{
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glDepthFunc(GL_LEQUAL);
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QHash<QPair<PolySet*,double*>,int> polySetVisitMark;
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bool showEdges = false;
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for (int i = 0; i < chain->polysets.size(); i++) {
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if (polySetVisitMark[QPair<PolySet*,double*>(chain->polysets[i], chain->matrices[i])]++ > 0)
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continue;
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double *m = chain->matrices[i];
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glPushMatrix();
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glMultMatrixd(m);
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int csgmode = chain->types[i] == CSGTerm::TYPE_DIFFERENCE ? PolySet::CSGMODE_DIFFERENCE : PolySet::CSGMODE_NORMAL;
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if (highlight) {
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chain->polysets[i]->render_surface(PolySet::COLORMODE_HIGHLIGHT, PolySet::csgmode_e(csgmode + 20), m);
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if (showEdges) {
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glDisable(GL_LIGHTING);
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chain->polysets[i]->render_edges(PolySet::COLORMODE_HIGHLIGHT, PolySet::csgmode_e(csgmode + 20));
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glEnable(GL_LIGHTING);
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}
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} else if (background) {
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chain->polysets[i]->render_surface(PolySet::COLORMODE_BACKGROUND, PolySet::csgmode_e(csgmode + 10), m);
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if (showEdges) {
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glDisable(GL_LIGHTING);
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chain->polysets[i]->render_edges(PolySet::COLORMODE_BACKGROUND, PolySet::csgmode_e(csgmode + 10));
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glEnable(GL_LIGHTING);
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}
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} else if (fberror) {
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if (highlight) {
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chain->polysets[i]->render_surface(PolySet::COLORMODE_NONE, PolySet::csgmode_e(csgmode + 20), m);
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} else if (background) {
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chain->polysets[i]->render_surface(PolySet::COLORMODE_NONE, PolySet::csgmode_e(csgmode + 10), m);
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} else {
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chain->polysets[i]->render_surface(PolySet::COLORMODE_NONE, PolySet::csgmode_e(csgmode), m);
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}
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} else if (m[16] >= 0 || m[17] >= 0 || m[18] >= 0 || m[19] >= 0) {
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glColor4d(m[16], m[17], m[18], m[19]);
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chain->polysets[i]->render_surface(PolySet::COLORMODE_NONE, PolySet::csgmode_e(csgmode), m);
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if (showEdges) {
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glDisable(GL_LIGHTING);
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glColor4d((m[16]+1)/2, (m[17]+1)/2, (m[18]+1)/2, 1.0);
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chain->polysets[i]->render_edges(PolySet::COLORMODE_NONE, PolySet::csgmode_e(csgmode));
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glEnable(GL_LIGHTING);
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}
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} else if (chain->types[i] == CSGTerm::TYPE_DIFFERENCE) {
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chain->polysets[i]->render_surface(PolySet::COLORMODE_CUTOUT, PolySet::csgmode_e(csgmode), m);
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if (showEdges) {
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glDisable(GL_LIGHTING);
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chain->polysets[i]->render_edges(PolySet::COLORMODE_CUTOUT, PolySet::csgmode_e(csgmode));
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glEnable(GL_LIGHTING);
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}
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} else {
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chain->polysets[i]->render_surface(PolySet::COLORMODE_MATERIAL, PolySet::csgmode_e(csgmode), m);
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if (showEdges) {
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glDisable(GL_LIGHTING);
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chain->polysets[i]->render_edges(PolySet::COLORMODE_MATERIAL, PolySet::csgmode_e(csgmode));
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glEnable(GL_LIGHTING);
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}
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}
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glPopMatrix();
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}
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}
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static void renderGLThrownTogether(void *vp)
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{
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CsgInfo *csgInfo = (CsgInfo *)vp;
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if (csgInfo->root_chain) {
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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renderGLThrownTogetherChain(csgInfo->root_chain, false, false, false);
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glCullFace(GL_FRONT);
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glColor3ub(255, 0, 255);
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renderGLThrownTogetherChain(csgInfo->root_chain, false, false, true);
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glDisable(GL_CULL_FACE);
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}
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if (csgInfo->background_chain)
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renderGLThrownTogetherChain(csgInfo->background_chain, false, true, false);
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if (csgInfo->highlights_chain)
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renderGLThrownTogetherChain(csgInfo->highlights_chain, true, false, false);
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}
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static void renderGLviaOpenCSG(void *vp)
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{
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CsgInfo *csgInfo = (CsgInfo *)vp;
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static bool glew_initialized = false;
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if (!glew_initialized) {
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glew_initialized = true;
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glewInit();
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}
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#ifdef ENABLE_MDI
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OpenCSG::setContext(csgInfo->glview->opencsg_id);
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#endif
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if (csgInfo->root_chain) {
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GLint *shaderinfo = csgInfo->glview->shaderinfo;
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if (!shaderinfo[0]) shaderinfo = NULL;
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renderCSGChainviaOpenCSG(csgInfo->root_chain, NULL, false, false);
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if (csgInfo->background_chain) {
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renderCSGChainviaOpenCSG(csgInfo->background_chain, NULL, false, true);
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}
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if (csgInfo->highlights_chain) {
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renderCSGChainviaOpenCSG(csgInfo->highlights_chain, NULL, true, false);
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}
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}
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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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QHash<std::string, CGAL_Nef_polyhedron> cache;
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CGALRenderer cgalrenderer(cache, tree);
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PolySetCGALRenderer psrenderer(cgalrenderer);
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CSGTermRenderer renderer(tree);
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CSGTerm *root_raw_term = renderer.renderCSGTerm(*root_node, NULL, NULL);
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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 csgInfo;
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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 (" << " 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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// QGLFormat fmt;
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// fmt.setDirectRendering(false);
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csgInfo.glview = new GLView(NULL);
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// FIXME: Thrown together works, OpenCSG not..
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// csgInfo.glview->setRenderFunc(renderGLviaOpenCSG, &csgInfo);
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csgInfo.glview->setRenderFunc(renderGLThrownTogether, &csgInfo);
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QDir::setCurrent(original_path.absolutePath());
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csgInfo.glview->renderPixmap(512, 512).save("out.png");
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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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