+++ /dev/null
-/////////////////////////////////////////////////////////////////////////////
-// Name: isosurf.cpp
-// Purpose: wxGLCanvas demo program
-// Author: Brian Paul (original gltk version), Wolfram Gloger
-// Modified by: Julian Smart
-// Created: 04/01/98
-// RCS-ID: $Id$
-// Copyright: (c) Julian Smart
-// Licence: wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation
-#pragma interface
-#endif
-
-// For compilers that support precompilation, includes "wx.h".
-#include "wx/wxprec.h"
-
-#ifdef __BORLANDC__
-#pragma hdrstop
-#endif
-
-#ifndef WX_PRECOMP
-#include "wx/wx.h"
-#endif
-
-#include "wx/timer.h"
-#include "glcanvas.h"
-
-#include <GL/gl.h>
-#include <GL/glu.h>
-
-#include "isosurf.h"
-
-// The following part is taken largely unchanged from the original C Version
-
-#include <math.h>
-
-GLboolean speed_test = GL_FALSE;
-GLboolean use_vertex_arrays = GL_FALSE;
-
-GLboolean doubleBuffer = GL_TRUE;
-
-GLboolean smooth = GL_TRUE;
-GLboolean lighting = GL_TRUE;
-
-
-#define MAXVERTS 10000
-
-static GLfloat verts[MAXVERTS][3];
-static GLfloat norms[MAXVERTS][3];
-static GLint numverts;
-
-static GLfloat xrot;
-static GLfloat yrot;
-
-
-static void read_surface( char *filename )
-{
- FILE *f;
-
- f = fopen(filename,"r");
- if (!f) {
- wxString msg("Couldn't read ");
- msg += filename;
- wxMessageBox(msg);
- return;
- }
-
- numverts = 0;
- while (!feof(f) && numverts<MAXVERTS) {
- fscanf( f, "%f %f %f %f %f %f",
- &verts[numverts][0], &verts[numverts][1], &verts[numverts][2],
- &norms[numverts][0], &norms[numverts][1], &norms[numverts][2] );
- numverts++;
- }
- numverts--;
-
- printf("%d vertices, %d triangles\n", numverts, numverts-2);
- fclose(f);
-}
-
-
-static void draw_surface( void )
-{
- GLint i;
-
-#ifdef GL_EXT_vertex_array
- if (use_vertex_arrays) {
- glDrawArraysEXT( GL_TRIANGLE_STRIP, 0, numverts );
- }
- else {
-#endif
- glBegin( GL_TRIANGLE_STRIP );
- for (i=0;i<numverts;i++) {
- glNormal3fv( norms[i] );
- glVertex3fv( verts[i] );
- }
- glEnd();
-#ifdef GL_EXT_vertex_array
- }
-#endif
-}
-
-
-static void draw1(void)
-{
- glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
- glPushMatrix();
- glRotatef( yrot, 0.0, 1.0, 0.0 );
- glRotatef( xrot, 1.0, 0.0, 0.0 );
-
- draw_surface();
-
- glPopMatrix();
-
- glFlush();
-}
-
-
-static void InitMaterials(void)
-{
- static float ambient[] = {0.1, 0.1, 0.1, 1.0};
- static float diffuse[] = {0.5, 1.0, 1.0, 1.0};
- static float position0[] = {0.0, 0.0, 20.0, 0.0};
- static float position1[] = {0.0, 0.0, -20.0, 0.0};
- static float front_mat_shininess[] = {60.0};
- static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0};
- static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0};
- /*
- static float back_mat_shininess[] = {60.0};
- static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0};
- static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0};
- */
- static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0};
- static float lmodel_twoside[] = {GL_FALSE};
-
- glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
- glLightfv(GL_LIGHT0, GL_POSITION, position0);
- glEnable(GL_LIGHT0);
-
- glLightfv(GL_LIGHT1, GL_AMBIENT, ambient);
- glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse);
- glLightfv(GL_LIGHT1, GL_POSITION, position1);
- glEnable(GL_LIGHT1);
-
- glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
- glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
- glEnable(GL_LIGHTING);
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, front_mat_shininess);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_mat_specular);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, front_mat_diffuse);
-}
-
-
-static void Init(void)
-{
- glClearColor(0.0, 0.0, 0.0, 0.0);
-
- glShadeModel(GL_SMOOTH);
- glEnable(GL_DEPTH_TEST);
-
- InitMaterials();
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum( -1.0, 1.0, -1.0, 1.0, 5, 25 );
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef( 0.0, 0.0, -6.0 );
-
-#ifdef GL_EXT_vertex_array
- if (use_vertex_arrays) {
- glVertexPointerEXT( 3, GL_FLOAT, 0, numverts, verts );
- glNormalPointerEXT( GL_FLOAT, 0, numverts, norms );
- glEnable( GL_VERTEX_ARRAY_EXT );
- glEnable( GL_NORMAL_ARRAY_EXT );
- }
-#endif
-}
-
-
-static void Reshape(int width, int height)
-{
- glViewport(0, 0, (GLint)width, (GLint)height);
-}
-
-
-static GLenum Args(int argc, char **argv)
-{
- GLint i;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-sb") == 0) {
- doubleBuffer = GL_FALSE;
- }
- else if (strcmp(argv[i], "-db") == 0) {
- doubleBuffer = GL_TRUE;
- }
- else if (strcmp(argv[i], "-speed") == 0) {
- speed_test = GL_TRUE;
- doubleBuffer = GL_TRUE;
- }
- else if (strcmp(argv[i], "-va") == 0) {
- use_vertex_arrays = GL_TRUE;
- }
- else {
- wxString msg("Bad option: ");
- msg += argv[i];
- wxMessageBox(msg);
- return GL_FALSE;
- }
- }
-
- return GL_TRUE;
-}
-
-// The following part was written for wxWindows 1.66
-MyFrame *frame = NULL;
-
-IMPLEMENT_APP(MyApp)
-
-// `Main program' equivalent, creating windows and returning main app frame
-bool MyApp::OnInit(void)
-{
- Args(argc, argv);
-
- // Create the main frame window
- frame = new MyFrame(NULL, "Isosurf GL Sample", wxPoint(50, 50), wxSize(200, 200));
-
- // Give it an icon
- frame->SetIcon(wxIcon("mondrian"));
-
- // Make a menubar
- wxMenu *fileMenu = new wxMenu;
-
- fileMenu->Append(wxID_EXIT, "E&xit");
- wxMenuBar *menuBar = new wxMenuBar;
- menuBar->Append(fileMenu, "&File");
- frame->SetMenuBar(menuBar);
-
- // Make a TestGLCanvas
-
- // JACS
-#ifdef __WXMSW__
- int *gl_attrib = NULL;
-#else
- int gl_attrib[20] = { GLX_RGBA, GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1,
- GLX_BLUE_SIZE, 1, GLX_DEPTH_SIZE, 1,
- GLX_DOUBLEBUFFER, None };
-#endif
-
- if(!doubleBuffer)
- {
- printf("don't have double buffer, disabling\n");
-#ifdef __WXGTK__
- gl_attrib[9] = None;
-#endif
- doubleBuffer = GL_FALSE;
- }
- frame->m_canvas = new TestGLCanvas(frame, -1, wxPoint(0, 0), wxSize(200, 200), 0, "TestGLCanvas",
- gl_attrib);
-
- // Show the frame
- frame->Show(TRUE);
-
- frame->m_canvas->SetCurrent();
- read_surface( "isosurf.dat" );
-
- Init();
-
- return TRUE;
-}
-
-BEGIN_EVENT_TABLE(MyFrame, wxFrame)
- EVT_MENU(wxID_EXIT, MyFrame::OnExit)
-END_EVENT_TABLE()
-
-// My frame constructor
-MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos,
- const wxSize& size, long style):
- wxFrame(frame, -1, title, pos, size, style)
-{
- m_canvas = NULL;
-}
-
-// Intercept menu commands
-void MyFrame::OnExit(wxCommandEvent& event)
-{
- Destroy();
-}
-
-/*
- * TestGLCanvas implementation
- */
-
-BEGIN_EVENT_TABLE(TestGLCanvas, wxGLCanvas)
- EVT_SIZE(TestGLCanvas::OnSize)
- EVT_PAINT(TestGLCanvas::OnPaint)
- EVT_CHAR(TestGLCanvas::OnChar)
- EVT_MOUSE_EVENTS(TestGLCanvas::OnMouseEvent)
- EVT_ERASE_BACKGROUND(TestGLCanvas::OnEraseBackground)
-END_EVENT_TABLE()
-
-TestGLCanvas::TestGLCanvas(wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size, long style, const wxString& name, int* gl_attrib):
- wxGLCanvas(parent, id, pos, size, style, name, gl_attrib)
-{
- parent->Show(TRUE);
- SetCurrent();
- /* Make sure server supports the vertex array extension */
- char* extensions = (char *) glGetString( GL_EXTENSIONS );
- if (!extensions || !strstr( extensions, "GL_EXT_vertex_array" )) {
- use_vertex_arrays = GL_FALSE;
- }
-}
-
-
-TestGLCanvas::~TestGLCanvas(void)
-{
-}
-
-void TestGLCanvas::OnPaint( wxPaintEvent& event )
-{
- // This is a dummy, to avoid an endless succession of paint messages.
- // OnPaint handlers must always create a wxPaintDC.
- wxPaintDC dc(this);
-
- draw1();
- SwapBuffers();
-}
-
-void TestGLCanvas::OnSize(wxSizeEvent& event)
-{
- SetCurrent();
- int width, height;
- GetClientSize(& width, & height);
- Reshape(width, height);
-}
-
-void TestGLCanvas::OnChar(wxKeyEvent& event)
-{
- switch(event.KeyCode()) {
- case WXK_ESCAPE:
- exit(0);
- case WXK_LEFT:
- yrot -= 15.0;
- break;
- case WXK_RIGHT:
- yrot += 15.0;
- break;
- case WXK_UP:
- xrot += 15.0;
- break;
- case WXK_DOWN:
- xrot -= 15.0;
- break;
- case 's': case 'S':
- smooth = !smooth;
- if (smooth) {
- glShadeModel(GL_SMOOTH);
- } else {
- glShadeModel(GL_FLAT);
- }
- break;
- case 'l': case 'L':
- lighting = !lighting;
- if (lighting) {
- glEnable(GL_LIGHTING);
- } else {
- glDisable(GL_LIGHTING);
- }
- break;
- default:
- {
- event.Skip();
- return;
- }
- }
-
- Refresh(FALSE);
-}
-
-void TestGLCanvas::OnMouseEvent(wxMouseEvent& event)
-{
- static int dragging = 0;
- static float last_x, last_y;
-
- //printf("%f %f %d\n", event.GetX(), event.GetY(), (int)event.LeftIsDown());
- if(event.LeftIsDown()) {
- if(!dragging) {
- dragging = 1;
- } else {
- yrot += (event.GetX() - last_x)*1.0;
- xrot += (event.GetY() - last_y)*1.0;
- Refresh(FALSE);
- }
- last_x = event.GetX();
- last_y = event.GetY();
- } else
- dragging = 0;
-}
-
-void TestGLCanvas::OnEraseBackground(wxEraseEvent& event)
-{
- // Do nothing, to avoid flashing.
-}
-
projects / wxWidgets.git / blobdiff