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Helios.cpp
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Helios.cpp
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/*
* Copyright (C) 2001-2010 Terence M. Welsh
*
* This file is part of Helios.
*
* Helios 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.
*
* Helios 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
*/
// Helios screensaver
#ifdef WIN32
#include <windows.h>
#include <rsWin32Saver/rsWin32Saver.h>
#include <gl/gl.h>
#include <gl/glu.h>
#include <regstr.h>
#include <commctrl.h>
#include <resource.h>
#endif
#include <stdio.h>
#include "rsText.h"
#include <math.h>
#include <time.h>
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include "rsMath.h"
#include "Rgbhsl.h"
#include "impCubeVolume.h"
#include "impCrawlPoint.h"
#include "impSphere.h"
#include <list>
#include "spheremap.h"
#include "Helios.h"
//#define LIGHTSIZE 64
#define PI 3.14159265359f
#define PIx2 6.28318530718f
class particle;
class emitter;
class attracter;
class ion;
// Global variables
/*LPCTSTR registryPath = ("Software\\Really Slick\\Helios");
HGLRC hglrc;
HDC hdc;
int readyToDraw = 0;
unsigned char lightTexture[LIGHTSIZE][LIGHTSIZE];
float frameTime = 0.0f;
emitter *elist;
attracter *alist;
ion *ilist;
rsVec newRgb;
float billboardMat[16];
float aspectRatio;
// text output
rsText* textwriter;
// Parameters edited in the dialog box
int dIons;
int dSize;
int dEmitters;
int dAttracters;
int dSpeed;
int dCameraspeed;
int dSurface;
int dBlur;
impCubeVolume* volume;
impSurface* surface;
impSphere* spheres;*/
class particle{
public:
rsVec pos;
rsVec rgb;
float size;
};
class emitter:public particle{
public:
rsVec oldpos;
rsVec targetpos;
emitter();
~emitter(){};
void settargetpos(rsVec target){oldpos = pos; targetpos = target;};
void interppos(float n){pos = oldpos * (1.0f - n) + targetpos * n;};
void update(){};
};
emitter::emitter(){
pos = rsVec(rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f);
}
class attracter:public particle{
public:
rsVec oldpos;
rsVec targetpos;
attracter();
~attracter(){};
void settargetpos(rsVec target){oldpos = pos; targetpos = target;};
void interppos(float n){pos = oldpos * (1.0f - n) + targetpos * n;};
void update(){};
};
attracter::attracter(){
pos = rsVec(rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f);
}
class ion:public particle{
public:
float speed;
ion() {}
ion(HeliosSaverSettings *inSettings);
~ion(){};
void start(HeliosSaverSettings *inSettings);
void update(HeliosSaverSettings *inSettings);
void draw(HeliosSaverSettings *inSettings);
};
ion::ion(HeliosSaverSettings *inSettings){
float temp;
pos = rsVec(0.0f, 0.0f, 0.0f);
rgb = rsVec(0.0f, 0.0f, 0.0f);
temp = rsRandf(2.0f) + 0.4f;
size = float(inSettings->dSize) * temp;
speed = float(inSettings->dSpeed) * 12.0f / temp;
}
void ion::start(HeliosSaverSettings *inSettings){
int i = rsRandi(inSettings->dEmitters);
pos = inSettings->elist[i].pos;
float offset = inSettings->frameTime * speed;
switch(rsRandi(14)){
case 0:
pos[0] += offset;
break;
case 1:
pos[0] -= offset;
break;
case 2:
pos[1] += offset;
break;
case 3:
pos[1] -= offset;
break;
case 4:
pos[2] += offset;
break;
case 5:
pos[2] -= offset;
break;
case 6:
pos[0] += offset;
pos[1] += offset;
pos[2] += offset;
break;
case 7:
pos[0] -= offset;
pos[1] += offset;
pos[2] += offset;
break;
case 8:
pos[0] += offset;
pos[1] -= offset;
pos[2] += offset;
break;
case 9:
pos[0] -= offset;
pos[1] -= offset;
pos[2] += offset;
break;
case 10:
pos[0] += offset;
pos[1] += offset;
pos[2] -= offset;
break;
case 11:
pos[0] -= offset;
pos[1] += offset;
pos[2] -= offset;
break;
case 12:
pos[0] += offset;
pos[1] -= offset;
pos[2] -= offset;
break;
case 13:
pos[0] -= offset;
pos[1] -= offset;
pos[2] -= offset;
}
rgb = inSettings->newRgb;
}
void ion::update(HeliosSaverSettings *inSettings){
int i;
int startOver = 0;
static float startOverDistance;
static rsVec force, tempvec;
static float length, temp;
force = rsVec(0.0f, 0.0f, 0.0f);
for(i=0; i<inSettings->dEmitters; i++){
tempvec = pos - inSettings->elist[i].pos;
length = tempvec.normalize();
if(length > 11000.0f)
startOver = 1;
if(length <= 1.0f)
temp = 1.0f;
else
temp = 1.0f / length;
tempvec *= temp;
force += tempvec;
}
startOverDistance = speed * inSettings->frameTime;
for(i=0; i<inSettings->dAttracters; i++){
tempvec = inSettings->alist[i].pos - pos;
length = tempvec.normalize();
if(length < startOverDistance)
startOver = 1;
if(length <= 1.0f)
temp = 1.0f;
else
temp = 1.0f / length;
tempvec *= temp;
force += tempvec;
}
// Start this ion at an emitter if it gets too close to an attracter
// or too far from an emitter
if(startOver)
start(inSettings);
else{
force.normalize();
pos += (force * inSettings->frameTime * speed);
}
}
void ion::draw(HeliosSaverSettings *inSettings){
glColor3f(rgb[0], rgb[1], rgb[2]);
glPushMatrix();
glTranslatef(pos[0] * inSettings->billboardMat[0] + pos[1] * inSettings->billboardMat[4] + pos[2] * inSettings->billboardMat[8],
pos[0] * inSettings->billboardMat[1] + pos[1] * inSettings->billboardMat[5] + pos[2] * inSettings->billboardMat[9],
pos[0] * inSettings->billboardMat[2] + pos[1] * inSettings->billboardMat[6] + pos[2] * inSettings->billboardMat[10]);
glScalef(size, size, size);
glCallList(1);
glPopMatrix();
}
void setTargets(int whichTarget, HeliosSaverSettings *inSettings){
int i;
switch(whichTarget){
case 0: // random
for(i=0; i<inSettings->dEmitters; i++)
inSettings->elist[i].settargetpos(rsVec(rsVec(rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f)));
for(i=0; i<inSettings->dAttracters; i++)
inSettings->alist[i].settargetpos(rsVec(rsVec(rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f, rsRandf(1000.0f) - 500.0f)));
break;
case 1:{ // line (all emitters on one side, all attracters on the other)
float position = -500.0f, change = 1000.0f / float(inSettings->dEmitters + inSettings->dAttracters - 1);
for(i=0; i<inSettings->dEmitters; i++){
inSettings->elist[i].settargetpos(rsVec(rsVec(position, position * 0.5f, 0.0f)));
position += change;
}
for(i=0; i<inSettings->dAttracters; i++){
inSettings->alist[i].settargetpos(rsVec(rsVec(position, position * 0.5f, 0.0f)));
position += change;
}
break;
}
case 2:{ // line (emitters and attracters staggered)
float change;
if(inSettings->dEmitters > inSettings->dAttracters)
change = 1000.0f / float(inSettings->dEmitters * 2 - 1);
else
change = 1000.0f / float(inSettings->dAttracters * 2 - 1);
float position = -500.0f;
for(i=0; i<inSettings->dEmitters; i++){
inSettings->elist[i].settargetpos(rsVec(rsVec(position, position * 0.5f, 0.0f)));
position += change * 2.0f;
}
position = -500.0f + change;
for(i=0; i<inSettings->dAttracters; i++){
inSettings->alist[i].settargetpos(rsVec(rsVec(position, position * 0.5f, 0.0f)));
position += change * 2.0f;
}
break;
}
case 3:{ // 2 lines (parallel)
float change = 1000.0f / float(inSettings->dEmitters * 2 - 1);
float position = -500.0f;
float height = -525.0f + float(inSettings->dEmitters * 25);
for(i=0; i<inSettings->dEmitters; i++){
inSettings->elist[i].settargetpos(rsVec(rsVec(position, height, -50.0f)));
position += change * 2.0f;
}
change = 1000.0f / float(inSettings->dAttracters * 2 - 1);
position = -500.0f;
height = 525.0f - float(inSettings->dAttracters * 25);
for(i=0; i<inSettings->dAttracters; i++){
inSettings->alist[i].settargetpos(rsVec(rsVec(position, height, 50.0f)));
position += change * 2.0f;
}
break;
}
case 4:{ // 2 lines (skewed)
float change = 1000.0f / float(inSettings->dEmitters * 2 - 1);
float position = -500.0f;
float height = -525.0f + float(inSettings->dEmitters * 25);
for(i=0; i<inSettings->dEmitters; i++){
inSettings->elist[i].settargetpos(rsVec(rsVec(position, height, 0.0f)));
position += change * 2.0f;
}
change = 1000.0f / float(inSettings->dAttracters * 2 - 1);
position = -500.0f;
height = 525.0f - float(inSettings->dAttracters * 25);
for(i=0; i<inSettings->dAttracters; i++){
inSettings->alist[i].settargetpos(rsVec(rsVec(10.0f, height, position)));
position += change * 2.0f;
}
break;
}
case 5: // random distribution across a plane
for(i=0; i<inSettings->dEmitters; i++)
inSettings->elist[i].settargetpos(rsVec(rsVec(rsRandf(1000.0f) - 500.0f, 0.0f, rsRandf(1000.0f) - 500.0f)));
for(i=0; i<inSettings->dAttracters; i++)
inSettings->alist[i].settargetpos(rsVec(rsVec(rsRandf(1000.0f) - 500.0f, 0.0f, rsRandf(1000.0f) - 500.0f)));
break;
case 6:{ // random distribution across 2 planes
float height = -525.0f + float(inSettings->dEmitters * 25);
for(i=0; i<inSettings->dEmitters; i++)
inSettings->elist[i].settargetpos(rsVec(rsVec(rsRandf(1000.0f) - 500.0f, height, rsRandf(1000.0f) - 500.0f)));
height = 525.0f - float(inSettings->dAttracters * 25);
for(i=0; i<inSettings->dAttracters; i++)
inSettings->alist[i].settargetpos(rsVec(rsVec(rsRandf(1000.0f) - 500.0f, height, rsRandf(1000.0f) - 500.0f)));
break;
}
case 7:{ // 2 rings (1 inside and 1 outside)
float angle = 0.5f, cosangle, sinangle;
float change = PIx2 / float(inSettings->dEmitters);
for(i=0; i<inSettings->dEmitters; i++){
angle += change;
cosangle = cosf(angle) * 200.0f;
sinangle = sinf(angle) * 200.0f;
inSettings->elist[i].settargetpos(rsVec(rsVec(cosangle, sinangle, 0.0f)));
}
angle = 1.5f;
change = PIx2 / float(inSettings->dAttracters);
for(i=0; i<inSettings->dAttracters; i++){
angle += change;
cosangle = cosf(angle) * 500.0f;
sinangle = sinf(angle) * 500.0f;
inSettings->alist[i].settargetpos(rsVec(rsVec(cosangle, sinangle, 0.0f)));
}
break;
}
case 8:{ // ring (all emitters on one side, all attracters on the other)
float angle = 0.5f, cosangle, sinangle;
float change = PIx2 / float(inSettings->dEmitters + inSettings->dAttracters);
for(i=0; i<inSettings->dEmitters; i++){
angle += change;
cosangle = cosf(angle) * 500.0f;
sinangle = sinf(angle) * 500.0f;
inSettings->elist[i].settargetpos(rsVec(rsVec(cosangle, sinangle, 0.0f)));
}
for(i=0; i<inSettings->dAttracters; i++){
angle += change;
cosangle = cosf(angle) * 500.0f;
sinangle = sinf(angle) * 500.0f;
inSettings->alist[i].settargetpos(rsVec(rsVec(cosangle, sinangle, 0.0f)));
}
break;
}
case 9:{ // ring (emitters and attracters staggered)
float change;
if(inSettings->dEmitters > inSettings->dAttracters)
change = PIx2 / float(inSettings->dEmitters * 2);
else
change = PIx2 / float(inSettings->dAttracters * 2);
float angle = 0.5f, cosangle, sinangle;
for(i=0; i<inSettings->dEmitters; i++){
cosangle = cosf(angle) * 500.0f;
sinangle = sinf(angle) * 500.0f;
inSettings->elist[i].settargetpos(rsVec(rsVec(cosangle, sinangle, 0.0f)));
angle += change * 2.0f;
}
angle = 0.5f + change;
for(i=0; i<inSettings->dAttracters; i++){
cosangle = cosf(angle) * 500.0f;
sinangle = sinf(angle) * 500.0f;
inSettings->alist[i].settargetpos(rsVec(rsVec(cosangle, sinangle, 0.0f)));
angle += change * 2.0f;
}
break;
}
case 10: // 2 points
for(i=0; i<inSettings->dEmitters; i++)
inSettings->elist[i].settargetpos(rsVec(rsVec(500.0f, 100.0f, 50.0f)));
for(i=0; i<inSettings->dAttracters; i++)
inSettings->alist[i].settargetpos(rsVec(rsVec(-500.0f, -100.0f, -50.0f)));
break;
}
}
float surfaceFunction(float* position, void *contextInfo){
HeliosSaverSettings *inSettings = (HeliosSaverSettings *)contextInfo;
static int i;
static float value;
const int points = inSettings->dEmitters + inSettings->dAttracters; // change by NZ; this was originally static but mustn't ever be static
value = 0.0f;
for(i=0; i<points; i++)
value += inSettings->spheres[i].value(position);
return(value);
}
void draw(HeliosSaverSettings *inSettings){
int i;
static int ionsReleased = 0;
static float releaseTime = 0.0f;
// Camera movements
// first do translation (distance from center)
static float oldCameraDistance;
static float cameraDistance;
static float targetCameraDistance = -1000.0f;
static float preCameraInterp = PI;
float cameraInterp;
preCameraInterp += float(inSettings->dCameraspeed) * inSettings->frameTime * 0.01f;
cameraInterp = 0.5f - (0.5f * cosf(preCameraInterp));
cameraDistance = (1.0f - cameraInterp) * oldCameraDistance
+ cameraInterp * targetCameraDistance;
if(preCameraInterp >= PI){
oldCameraDistance = targetCameraDistance;
targetCameraDistance = -rsRandf(1300.0f) - 200.0f;
preCameraInterp = 0.0f;
}
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0.0, 0.0, cameraDistance);
// then do rotation
static rsVec radialVel = rsVec(0.0f, 0.0f, 0.0f);
static rsVec targetRadialVel = radialVel;
static rsQuat rotQuat = rsQuat(0.0f, 0.0f, 0.0f, 1.0f);
rsVec radialVelDiff = targetRadialVel - radialVel;
float changeRemaining = radialVelDiff.normalize();
float change = float(inSettings->dCameraspeed) * 0.0002f * inSettings->frameTime;
if(changeRemaining > change){
radialVelDiff *= change;
radialVel += radialVelDiff;
}
else{
radialVel = targetRadialVel;
if(rsRandi(2)){
targetRadialVel = rsVec(rsRandf(1.0f), rsRandf(1.0f), rsRandf(1.0f));
targetRadialVel.normalize();
targetRadialVel *= float(inSettings->dCameraspeed) * rsRandf(0.002f);
}
else
targetRadialVel = rsVec(0.0f, 0.0f, 0.0f);
}
rsVec tempRadialVel = radialVel;
float angle = tempRadialVel.normalize();
rsQuat radialQuat;
radialQuat.make(angle, tempRadialVel[0], tempRadialVel[1], tempRadialVel[2]);
rotQuat.preMult(radialQuat);
rsMatrix rotMat;
rotMat.fromQuat(rotQuat);
// make billboard matrix for rotating particles when they are drawn
rotMat.get(inSettings->billboardMat);
// Calculate new color
/*static rsVec oldHsl, newHsl = rsVec(rsRandf(1.0f), 1.0f, 1.0f), targetHsl;
static float colorInterp = 1.0f, colorChange;*/
inSettings->colorInterp += inSettings->frameTime * inSettings->colorChange;
if(inSettings->colorInterp >= 1.0f){
if(!rsRandi(3) && inSettings->dIons >= 100) // change color suddenly
inSettings->newHsl = rsVec(rsRandf(1.0f), 1.0f - (rsRandf(1.0f) * rsRandf(1.0f)), 1.0f);
inSettings->oldHsl = inSettings->newHsl;
inSettings->targetHsl = rsVec(rsRandf(1.0f), 1.0f - (rsRandf(1.0f) * rsRandf(1.0f)), 1.0f);
inSettings->colorInterp = 0.0f;
// amount by which to change colorInterp each second
inSettings->colorChange = rsRandf(0.005f * float(inSettings->dSpeed)) + (0.002f * float(inSettings->dSpeed));
}
else{
float diff = inSettings->targetHsl[0] - inSettings->oldHsl[0];
if(diff < -0.5f || (diff > 0.0f && diff < 0.5f))
inSettings->newHsl[0] = inSettings->oldHsl[0] + inSettings->colorInterp * diff;
else
inSettings->newHsl[0] = inSettings->oldHsl[0] - inSettings->colorInterp * diff;
diff = inSettings->targetHsl[1] - inSettings->oldHsl[1];
inSettings->newHsl[1] = inSettings->oldHsl[1] + inSettings->colorInterp * diff;
if(inSettings->newHsl[0] < 0.0f)
inSettings->newHsl[0] += 1.0f;
if(inSettings->newHsl[0] > 1.0f)
inSettings->newHsl[0] -= 1.0f;
hsl2rgb(inSettings->newHsl[0], inSettings->newHsl[1], 1.0f, inSettings->newRgb[0], inSettings->newRgb[1], inSettings->newRgb[2]);
}
// Release ions
if(ionsReleased < inSettings->dIons){
releaseTime -= inSettings->frameTime;
while(ionsReleased < inSettings->dIons && releaseTime <= 0.0f){
inSettings->ilist[ionsReleased].start(inSettings);
ionsReleased ++;
// all ions released after 2 minutes
releaseTime += 120.0f / float(inSettings->dIons);
}
}
// Set interpolation value for emitters and attracters
/*static float wait = 0.0f;
static float preinterp = PI, interp;
static float interpconst = 0.001f;*/
inSettings->wait -= inSettings->frameTime;
if(inSettings->wait <= 0.0f){
inSettings->preinterp += inSettings->frameTime * float(inSettings->dSpeed) * inSettings->interpconst;
inSettings->interp = 0.5f - (0.5f * cosf(inSettings->preinterp));
}
if(inSettings->preinterp >= PI){
// select new taget points (not the same pattern twice in a row)
static int newTarget = 0, lastTarget;
lastTarget = newTarget;
newTarget = rsRandi(10);
if(newTarget == lastTarget)
newTarget ++;
setTargets(newTarget, inSettings);
inSettings->preinterp = 0.0f;
inSettings->interp = 0.0f;
inSettings->wait = 10.0f; // pause after forming each new pattern
inSettings->interpconst = 0.001f;
if(!rsRandi(4)) // interpolate really fast sometimes
inSettings->interpconst = 0.1f;
}
// Update particles
for(i=0; i<inSettings->dEmitters; i++){
inSettings->elist[i].interppos(inSettings->interp);
inSettings->elist[i].update();
}
for(i=0; i<inSettings->dAttracters; i++){
inSettings->alist[i].interppos(inSettings->interp);
inSettings->alist[i].update();
}
for(i=0; i<ionsReleased; i++)
inSettings->ilist[i].update(inSettings);
// Calculate surface
if(inSettings->dSurface){
for(i=0; i<inSettings->dEmitters; i++)
inSettings->spheres[i].setPosition(inSettings->elist[i].pos[0], inSettings->elist[i].pos[1], inSettings->elist[i].pos[2]);
for(i=0; i<inSettings->dAttracters; i++)
inSettings->spheres[inSettings->dEmitters+i].setPosition(inSettings->alist[i].pos[0], inSettings->alist[i].pos[1], inSettings->alist[i].pos[2]);
impCrawlPointVector cpv;
for(i=0; i<inSettings->dEmitters+inSettings->dAttracters; i++)
inSettings->spheres[i].addCrawlPoint(cpv);
inSettings->surface->reset();
static float valuetrig = 0.0f;
valuetrig += inSettings->frameTime;
inSettings->volume->setSurfaceValue(0.45f + 0.05f * cosf(valuetrig));
inSettings->volume->makeSurface(cpv);
}
// Draw
// clear the screen
if(inSettings->dBlur){ // partially
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0.0, 1.0, 0.0, 1.0, 1.0, -1.0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4f(0.0f, 0.0f, 0.0f, 0.5f - (float(sqrtf(sqrtf(float(inSettings->dBlur)))) * 0.15495f));
glBegin(GL_TRIANGLE_STRIP);
glVertex3f(0.0f, 0.0f, 0.0f);
glVertex3f(1.0f, 0.0f, 0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glVertex3f(1.0f, 1.0f, 0.0f);
glEnd();
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
}
else // completely
glClear(GL_COLOR_BUFFER_BIT);
// Draw ions
glMatrixMode(GL_MODELVIEW);
glBlendFunc(GL_ONE, GL_ONE);
glBindTexture(GL_TEXTURE_2D, 1);
for(i=0; i<ionsReleased; i++)
inSettings->ilist[i].draw(inSettings);
// Draw surfaces
float brightFactor;
float surfaceColor[3] = {0.0f, 0.0f, 0.0f};
if(inSettings->dSurface){
glBindTexture(GL_TEXTURE_2D, 2);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
// find color for surfaces
if(inSettings->dIons >= 100){
brightFactor = 4.0f / (float(inSettings->dBlur + 30) * float(inSettings->dBlur + 30));
for(i=0; i<100; i++){
surfaceColor[0] += inSettings->ilist[i].rgb[0] * brightFactor;
surfaceColor[1] += inSettings->ilist[i].rgb[1] * brightFactor;
surfaceColor[2] += inSettings->ilist[i].rgb[2] * brightFactor;
}
glColor3fv(surfaceColor);
}
else{
brightFactor = 400.0f / (float(inSettings->dBlur + 30) * float(inSettings->dBlur + 30));
glColor3f(inSettings->newRgb[0] * brightFactor, inSettings->newRgb[1] * brightFactor, inSettings->newRgb[2] * brightFactor);
}
// draw the surface
glPushMatrix();
glMultMatrixf(inSettings->billboardMat);
inSettings->surface->draw();
glPopMatrix();
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
}
// If graphics card does a true buffer swap instead of a copy swap
// then everything must get drawn on both buffers
/*if(dBlur && pfd_swap_exchange){
wglSwapLayerBuffers(hdc, WGL_SWAP_MAIN_PLANE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4f(0.0f, 0.0f, 0.0f, 0.5f - (float(sqrtf(sqrtf(dBlur))) * 0.15495f));
glPushMatrix();
glLoadIdentity();
glBegin(GL_TRIANGLE_STRIP);
glVertex3f(-5.0f, -4.0f, -3.0f);
glVertex3f(5.0f, -4.0f, -3.0f);
glVertex3f(-5.0f, 4.0f, -3.0f);
glVertex3f(5.0f, 4.0f, -3.0f);
glEnd();
glPopMatrix();
// Draw ions
glBlendFunc(GL_ONE, GL_ONE);
glBindTexture(GL_TEXTURE_2D, 1);
for(i=0; i<ionsReleased; i++)
ilist[i].draw();
// Draw surfaces
if(dSurface){
glBindTexture(GL_TEXTURE_2D, 2);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
if(dIons >= 100)
glColor3fv(surfaceColor);
else
glColor3f(newRgb[0] * brightFactor, newRgb[1] * brightFactor, newRgb[2] * brightFactor);
glPushMatrix();
glMultMatrixf(billboardMat);
surface->draw();
glPopMatrix();
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
}
}*/
// print text
//static float totalTime = 0.0f;
inSettings->totalTime += inSettings->frameTime;
static std::string str;
static int frames = 0;
++frames;
if(frames == 20){
str = "FPS = " + to_string(20.0f / inSettings->totalTime);
inSettings->totalTime = 0.0f;
frames = 0;
}
if(inSettings->kStatistics){
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0.0f, 50.0f * inSettings->aspectRatio, 0.0f, 50.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(1.0f, 48.0f, 0.0f);
glColor3f(1.0f, 0.6f, 0.0f);
inSettings->textwriter->draw(str);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
}
//wglSwapLayerBuffers(hdc, WGL_SWAP_MAIN_PLANE);
}
/*void idleProc(){
// update time
static rsTimer timer;
frameTime = timer.tick();
if(readyToDraw && !isSuspended && !checkingPassword)
draw();
}*/
#ifdef WIN32
void doSaver(HWND hwnd){
RECT rect;
int i, j;
float x, y, temp;
// Seed random number generator
srand((unsigned)time(NULL));
// Window initialization
hdc = GetDC(hwnd);
setBestPixelFormat(hdc);
hglrc = wglCreateContext(hdc);
GetClientRect(hwnd, &rect);
wglMakeCurrent(hdc, hglrc);
glViewport(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
aspectRatio = float(rect.right) / float(rect.bottom);
#else
void doSaver(HeliosSaverSettings *inSettings)
{
int i, j;
float x, y, temp;
srand((unsigned)time(NULL));
inSettings->aspectRatio = float(inSettings->viewWidth)/float(inSettings->viewHeight);
glViewport(0, 0, inSettings->viewWidth, inSettings->viewHeight);
#endif
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0, inSettings->aspectRatio, 0.1, 10000.0);
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
glEnable(GL_NORMALIZE);
// Clear the buffers and test for type of buffer swapping
/*glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
wglSwapLayerBuffers(hdc, WGL_SWAP_MAIN_PLANE);
glClear(GL_COLOR_BUFFER_BIT);
unsigned char pixel[1] = {255};
glRasterPos2i(0, 0);
glDrawPixels(1, 1, GL_RED, GL_UNSIGNED_BYTE, pixel);
wglSwapLayerBuffers(hdc, WGL_SWAP_MAIN_PLANE);
glReadPixels(0, 0, 1, 1, GL_RED, GL_UNSIGNED_BYTE, pixel);
if(pixel[0] == 0){ // Color was truly swapped out of the back buffer
pfd_swap_exchange = 1;
pfd_swap_copy = 0;
}
else{ // Color remains in back buffer
pfd_swap_exchange = 0;
pfd_swap_copy = 1;
}*/
// Init light texture
for(i=0; i<LIGHTSIZE; i++){
for(j=0; j<LIGHTSIZE; j++){
x = float(i - LIGHTSIZE / 2) / float(LIGHTSIZE / 2);
y = float(j - LIGHTSIZE / 2) / float(LIGHTSIZE / 2);
temp = 1.0f - float(sqrt((x * x) + (y * y)));
if(temp > 1.0f)
temp = 1.0f;
if(temp < 0.0f)
temp = 0.0f;
inSettings->lightTexture[i][j] = u_int8_t(255.0f * temp * temp);
}
}
glBindTexture(GL_TEXTURE_2D, 1);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
gluBuild2DMipmaps(GL_TEXTURE_2D, 1, LIGHTSIZE, LIGHTSIZE, GL_LUMINANCE,
GL_UNSIGNED_BYTE, inSettings->lightTexture);
glBindTexture(GL_TEXTURE_2D, 2);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, TEXSIZE, TEXSIZE, GL_RGB,
GL_UNSIGNED_BYTE, inSettings->customSpheremap ? inSettings->customSpheremap : spheremap);
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glEnable(GL_TEXTURE_2D);
// Initialize light display list
glNewList(1, GL_COMPILE);
glBindTexture(GL_TEXTURE_2D, 1);
glBegin(GL_TRIANGLES);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-0.5f, -0.5f, 0.0f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(0.5f, -0.5f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(0.5f, 0.5f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-0.5f, -0.5f, 0.0f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(0.5f, 0.5f, 0.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-0.5f, 0.5f, 0.0f);
glEnd();
glEndList();
// Initialize particles
inSettings->elist = new emitter[inSettings->dEmitters];
inSettings->alist = new attracter[inSettings->dAttracters];
inSettings->ilist = new ion[inSettings->dIons];
for (size_t i = 0 ; i < inSettings->dIons ; i++)
{
new (&(inSettings->ilist[i])) ion(inSettings);
}
// Initialize surface
if(inSettings->dSurface){
inSettings->volume = new impCubeVolume;
// Preview takes to long to initialize because Windows sucks,
// so initialize smaller surface data structures.
if(inSettings->doingPreview)
inSettings->volume->init(14, 14, 14, 125.0f);
else
inSettings->volume->init(70, 70, 70, 25.0f);
inSettings->volume->function = surfaceFunction;
inSettings->volume->contextInfoForFunction = inSettings; // add by NZ so surfaceFunction can read inSettings
inSettings->surface = inSettings->volume->getSurface();
inSettings->spheres = new impSphere[inSettings->dEmitters + inSettings->dAttracters];
float sphereScaleFactor = 1.0f / sqrtf(float(2 * inSettings->dEmitters + inSettings->dAttracters));
for(i=0; i<inSettings->dEmitters; i++)
inSettings->spheres[i].setThickness(400.0f * sphereScaleFactor);
for(i=0; i<inSettings->dAttracters; i++)
inSettings->spheres[i + inSettings->dEmitters].setThickness(200.0f * sphereScaleFactor);
}
// Change by NZ - color changes must be per-instance and not global
inSettings->newHsl = rsVec(rsRandf(1.0f), 1.0f, 1.0f);
inSettings->colorInterp = 1.0f;
inSettings->colorChange = 0.0f;
// Change by NZ - put emitters and attractors in random places once we draw
inSettings->wait = 0.0f;
inSettings->preinterp = PI;
inSettings->interpconst = 0.001f;
// Initialize text
inSettings->textwriter = new rsText;
inSettings->readyToDraw = true;
}
#ifdef WIN32
void cleanUp(HWND hwnd){
// Free memory
delete[] elist;
delete[] alist;
delete[] ilist;
if(dSurface){
delete[] spheres;
delete surface;
delete volume;
}
// Kill device context
ReleaseDC(hwnd, hdc);
wglMakeCurrent(NULL, NULL);
wglDeleteContext(hglrc);
}
#else
void cleanUp(HeliosSaverSettings *inSettings)
{
delete[] inSettings->elist;
inSettings->elist = NULL;
delete[] inSettings->alist;
inSettings->alist = NULL;
delete[] inSettings->ilist;
inSettings->ilist = NULL;
if (inSettings->dSurface)
{
delete[] inSettings->spheres;
inSettings->spheres = NULL;
delete inSettings->surface;
inSettings->surface = NULL;
delete inSettings->volume;
inSettings->volume = NULL;
}
delete inSettings->textwriter;
inSettings->textwriter = NULL;
inSettings->readyToDraw = false;
}
#endif
void setDefaults(HeliosSaverSettings *inSettings){
inSettings->dIons = 1500;
inSettings->dSize = 10;
inSettings->dEmitters = 3;
inSettings->dAttracters = 3;
inSettings->dSpeed = 10;
inSettings->dCameraspeed = 10;
inSettings->dSurface = 1;
inSettings->dBlur = 10;
}
// Initialize all user-defined stuff
/*void readRegistry(){
LONG result;
HKEY skey;
DWORD valtype, valsize, val;
setDefaults();
result = RegOpenKeyEx(HKEY_CURRENT_USER, registryPath, 0, KEY_READ, &skey);
if(result != ERROR_SUCCESS)
return;
valsize=sizeof(val);
result = RegQueryValueEx(skey, "Ions", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dIons = val;
result = RegQueryValueEx(skey, "Size", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dSize = val;
result = RegQueryValueEx(skey, "Emitters", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dEmitters = val;
result = RegQueryValueEx(skey, "Attracters", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dAttracters = val;
result = RegQueryValueEx(skey, "Speed", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dSpeed = val;
result = RegQueryValueEx(skey, "Cameraspeed", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dCameraspeed = val;
result = RegQueryValueEx(skey, "Surface", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dSurface = val;
result = RegQueryValueEx(skey, "Blur", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dBlur = val;
result = RegQueryValueEx(skey, "FrameRateLimit", 0, &valtype, (LPBYTE)&val, &valsize);
if(result == ERROR_SUCCESS)
dFrameRateLimit = val;
RegCloseKey(skey);
}
// Save all user-defined stuff
void writeRegistry(){
LONG result;