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Diffstat (limited to 'dist/Mesa/progs/demos/rain.cxx')
-rw-r--r--dist/Mesa/progs/demos/rain.cxx393
1 files changed, 0 insertions, 393 deletions
diff --git a/dist/Mesa/progs/demos/rain.cxx b/dist/Mesa/progs/demos/rain.cxx
deleted file mode 100644
index 60fc4146c..000000000
--- a/dist/Mesa/progs/demos/rain.cxx
+++ /dev/null
@@ -1,393 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (humanware@plus.it)
- * Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <time.h>
-#include <GL/glut.h>
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
-#include "particles.h"
-extern "C" {
-#include "readtex.h"
-}
-
-#ifdef _WIN32
-#include <windows.h>
-#include <mmsystem.h>
-#endif
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen=1;
-#endif
-
-static int WIDTH=640;
-static int HEIGHT=480;
-static int NUMPART=7500;
-
-#define FRAME 50
-
-static float fogcolor[4]={1.0,1.0,1.0,1.0};
-
-#define DIMP 40.0
-#define DIMTP 32.0
-
-static float q[4][3]={
- {-DIMP,0.0,-DIMP},
- {DIMP,0.0,-DIMP},
- {DIMP,0.0,DIMP},
- {-DIMP,0.0,DIMP}
-};
-
-static float qt[4][2]={
- {-DIMTP,-DIMTP},
- {DIMTP,-DIMTP},
- {DIMTP,DIMTP},
- {-DIMTP,DIMTP}
-};
-
-static int win=0;
-
-static int fog=1;
-static int help=1;
-
-static GLuint groundid;
-
-static float obs[3]={2.0,1.0,0.0};
-static float dir[3];
-static float v=0.0;
-static float alpha=-90.0;
-static float beta=90.0;
-
-static particleSystem *ps;
-
-static float gettime()
-{
- static clock_t told=0;
- clock_t tnew,ris;
-
- tnew=clock();
-
- ris=tnew-told;
-
- told=tnew;
-
- return(ris/(float)CLOCKS_PER_SEC);
-}
-
-static float gettimerain()
-{
- static clock_t told=0;
- clock_t tnew,ris;
-
- tnew=clock();
-
- ris=tnew-told;
-
- told=tnew;
-
- return(ris/(float)CLOCKS_PER_SEC);
-}
-
-static void calcposobs(void)
-{
- dir[0]=sin(alpha*M_PI/180.0);
- dir[2]=cos(alpha*M_PI/180.0)*sin(beta*M_PI/180.0);
- dir[1]=cos(beta*M_PI/180.0);
-
- obs[0]+=v*dir[0];
- obs[1]+=v*dir[1];
- obs[2]+=v*dir[2];
-
- rainParticle::setRainingArea(obs[0]-7.0f,-0.2f,obs[2]-7.0f,obs[0]+7.0f,8.0f,obs[2]+7.0f);
-}
-
-static void printstring(void *font, const char *string)
-{
- int len,i;
-
- len=(int)strlen(string);
- for(i=0;i<len;i++)
- glutBitmapCharacter(font,string[i]);
-}
-
-static void reshape(int width, int height)
-{
- WIDTH=width;
- HEIGHT=height;
- glViewport(0,0,(GLint)width,(GLint)height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(70.0,width/(float)height,0.1,30.0);
-
- glMatrixMode(GL_MODELVIEW);
-}
-
-static void printhelp(void)
-{
- glEnable(GL_BLEND);
- glColor4f(0.0,0.0,0.0,0.5);
- glRecti(40,40,600,440);
- glDisable(GL_BLEND);
-
- glColor3f(1.0,0.0,0.0);
- glRasterPos2i(300,420);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"Help");
-
- glRasterPos2i(60,390);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"h - Toggle Help");
-
- glRasterPos2i(60,360);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"f - Toggle Fog");
- glRasterPos2i(60,330);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"Arrow Keys - Rotate");
- glRasterPos2i(60,300);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"a - Increase velocity");
- glRasterPos2i(60,270);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"z - Decrease velocity");
- glRasterPos2i(60,240);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"l - Increase rain length");
- glRasterPos2i(60,210);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,"k - Decrease rain length");
-}
-
-static void drawrain(void)
-{
- static int count=0;
- static char frbuf[80];
- float fr;
-
- glEnable(GL_DEPTH_TEST);
-
- if(fog)
- glEnable(GL_FOG);
- else
- glDisable(GL_FOG);
-
- glDepthMask(GL_TRUE);
- glClearColor(1.0,1.0,1.0,1.0);
- glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- calcposobs();
- gluLookAt(obs[0],obs[1],obs[2],
- obs[0]+dir[0],obs[1]+dir[1],obs[2]+dir[2],
- 0.0,1.0,0.0);
-
- glColor4f(1.0,1.0,1.0,1.0);
-
- glEnable(GL_TEXTURE_2D);
-
- glBindTexture(GL_TEXTURE_2D,groundid);
- glBegin(GL_QUADS);
- glTexCoord2fv(qt[0]);
- glVertex3fv(q[0]);
- glTexCoord2fv(qt[1]);
- glVertex3fv(q[1]);
- glTexCoord2fv(qt[2]);
- glVertex3fv(q[2]);
- glTexCoord2fv(qt[3]);
- glVertex3fv(q[3]);
- glEnd();
-
- // Particle System
-
- glDisable(GL_TEXTURE_2D);
- glShadeModel(GL_SMOOTH);
- glEnable(GL_BLEND);
-
- ps->draw();
- ps->addTime(gettimerain());
-
- glShadeModel(GL_FLAT);
-
-
- if((count % FRAME)==0) {
- fr=gettime();
- sprintf(frbuf,"Frame rate: %f",FRAME/fr);
- }
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_DEPTH_TEST);
- glDisable(GL_FOG);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-0.5,639.5,-0.5,479.5,-1.0,1.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glColor3f(1.0,0.0,0.0);
- glRasterPos2i(10,10);
- printstring(GLUT_BITMAP_HELVETICA_18,frbuf);
- glRasterPos2i(350,470);
- printstring(GLUT_BITMAP_HELVETICA_10,"Rain V1.0 Written by David Bucciarelli (humanware@plus.it)");
-
- if(help)
- printhelp();
-
- reshape(WIDTH,HEIGHT);
- glPopMatrix();
-
- glutSwapBuffers();
-
- count++;
-}
-
-
-static void special(int key, int x, int y)
-{
- switch (key) {
- case GLUT_KEY_LEFT:
- alpha+=2.0;
- break;
- case GLUT_KEY_RIGHT:
- alpha-=2.0;
- break;
- case GLUT_KEY_DOWN:
- beta-=2.0;
- break;
- case GLUT_KEY_UP:
- beta+=2.0;
- break;
- }
-}
-
-static void key(unsigned char key, int x, int y)
-{
- switch (key) {
- case 27:
- exit(0);
- break;
-
- case 'a':
- v+=0.01;
- break;
- case 'z':
- v-=0.01;
- break;
-
- case 'l':
- rainParticle::setLength(rainParticle::getLength()+0.025f);
- break;
- case 'k':
- rainParticle::setLength(rainParticle::getLength()-0.025f);
- break;
-
- case 'h':
- help=(!help);
- break;
- case 'f':
- fog=(!fog);
- break;
-#ifdef XMESA
- case ' ':
- XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
- fullscreen=(!fullscreen);
- break;
-#endif
- }
-}
-
-static void inittextures(void)
-{
- GLubyte *img;
- GLint width,height;
- GLenum format;
- GLenum gluerr;
-
- glGenTextures(1,&groundid);
- glBindTexture(GL_TEXTURE_2D,groundid);
-
- if(!(img=LoadRGBImage("../images/s128.rgb",&width,&height,&format))){
- fprintf(stderr,"Error reading a texture.\n");
- exit(-1);
- }
- glPixelStorei(GL_UNPACK_ALIGNMENT,4);
- if((gluerr=(GLenum)gluBuild2DMipmaps(GL_TEXTURE_2D, 3, width, height,GL_RGB,
- GL_UNSIGNED_BYTE, (GLvoid *)(img)))) {
- fprintf(stderr,"GLULib%s\n",gluErrorString(gluerr));
- exit(-1);
- }
-
- glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
- glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
-
- glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_LINEAR);
- glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
-
- glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_DECAL);
-}
-
-static void initparticle(void)
-{
- ps=new particleSystem;
-
- rainParticle::setRainingArea(-7.0f,-0.2f,-7.0f,7.0f,8.0f,7.0f);
-
- for(int i=0;i<NUMPART;i++) {
- rainParticle *p=new rainParticle;
- p->randomHeight();
-
- ps->addParticle((particle *)p);
- }
-}
-
-int main(int ac,char **av)
-{
- fprintf(stderr,"Rain V1.0\nWritten by David Bucciarelli (humanware@plus.it)\n");
-
- /* Default settings */
-
- WIDTH=640;
- HEIGHT=480;
-
- glutInitWindowPosition(0,0);
- glutInitWindowSize(WIDTH,HEIGHT);
- glutInit(&ac,av);
-
- glutInitDisplayMode(GLUT_RGB|GLUT_DEPTH|GLUT_DOUBLE);
-
- if(!(win=glutCreateWindow("Rain"))) {
- fprintf(stderr,"Error opening a window.\n");
- exit(-1);
- }
-
- reshape(WIDTH,HEIGHT);
-
- inittextures();
-
- glShadeModel(GL_FLAT);
- glEnable(GL_DEPTH_TEST);
-
- glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
-
- glEnable(GL_FOG);
- glFogi(GL_FOG_MODE,GL_EXP);
- glFogfv(GL_FOG_COLOR,fogcolor);
- glFogf(GL_FOG_DENSITY,0.1);
-#ifdef FX
- glHint(GL_FOG_HINT,GL_NICEST);
-#endif
-
- initparticle();
-
- glutKeyboardFunc(key);
- glutSpecialFunc(special);
- glutDisplayFunc(drawrain);
- glutIdleFunc(drawrain);
- glutReshapeFunc(reshape);
- glutMainLoop();
-
- return(0);
-}
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