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- Committer: Sam Spilsbury
- Date: 2009-08-22 06:57:28 UTC
- Revision ID: git-v1:663e5cad9816680467bdb4246dc9352257f4ef15
Initial C++ port. Drawing is broken to some extent, although this may because of differences to the particlesystem ABI in firepaint and showmouse
- files added:
- images
- src
- files removed:
- Makefile
- files modified:
- CMakeLists.txt
added
removed
src/showmouse.cpp
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/*
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*
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* Compiz show mouse pointer plugin
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*
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* showmouse.cpp
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*
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* Copyright : (C) 2008 by Dennis Kasprzyk
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* E-mail : onestone@opencompositing.org
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*
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* Ported to Compiz 0.9 by:
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* Copyright : (C) 2009 by Sam Spilsbury
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* E-mail : smpillaz@gmail.com
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include "showmouse.h"
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COMPIZ_PLUGIN_20090315 (showmouse, ShowmousePluginVTable);
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void
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ShowmouseScreen::genNewParticles (int f_time)
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{
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if (!ps)
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return;
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Bool rColor = optionGetRandom ();
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float life = optionGetLife ();
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float lifeNeg = 1 - life;
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float fadeExtra = 0.2f * (1.01 - life);
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float max_new = ps->particles.size () * ((float)f_time / 50) * (1.05 - life);
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unsigned short *c = optionGetColor ();
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float colr1 = (float)c[0] / 0xffff;
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float colg1 = (float)c[1] / 0xffff;
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float colb1 = (float)c[2] / 0xffff;
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float colr2 = 1.0 / 4.0 * (float)c[0] / 0xffff;
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float colg2 = 1.0 / 4.0 * (float)c[1] / 0xffff;
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float colb2 = 1.0 / 4.0 * (float)c[2] / 0xffff;
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float cola = (float)c[3] / 0xffff;
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float rVal;
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float partw = optionGetSize () * 5;
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float parth = partw;
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int i, j;
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float pos[10][2];
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int nE = MIN (10, optionGetEmiters ());
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float rA = (2 * M_PI) / nE;
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int radius = optionGetRadius ();
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for (i = 0; i < nE; i++)
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{
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pos[i][0] = sin (rot + (i * rA)) * radius;
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pos[i][0] += mousePos.x ();
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pos[i][1] = cos (rot + (i * rA)) * radius;
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pos[i][1] += mousePos.y ();
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}
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for (i = 0; i < ps->particles.size () && max_new > 0; i++)
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{
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Particle *part = ps->particles.at (i);
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if (part->life <= 0.0f)
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{
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// give gt new life
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rVal = (float)(random() & 0xff) / 255.0;
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part->life = 1.0f;
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part->fade = rVal * lifeNeg + fadeExtra; // Random Fade Value
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// set size
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part->width = partw;
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part->height = parth;
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rVal = (float)(random() & 0xff) / 255.0;
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part->w_mod = part->h_mod = -1;
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// choose random position
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j = random() % nE;
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part->x = pos[j][0];
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part->y = pos[j][1];
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part->z = 0.0;
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part->xo = part->x;
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part->yo = part->y;
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part->zo = part->z;
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// set speed and direction
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rVal = (float)(random() & 0xff) / 255.0;
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part->xi = ((rVal * 20.0) - 10.0f);
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rVal = (float)(random() & 0xff) / 255.0;
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part->yi = ((rVal * 20.0) - 10.0f);
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part->zi = 0.0f;
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if (rColor)
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{
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// Random colors! (aka Mystical Fire)
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rVal = (float)(random() & 0xff) / 255.0;
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part->r = rVal;
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rVal = (float)(random() & 0xff) / 255.0;
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part->g = rVal;
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rVal = (float)(random() & 0xff) / 255.0;
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part->b = rVal;
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}
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else
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{
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rVal = (float)(random() & 0xff) / 255.0;
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part->r = colr1 - rVal * colr2;
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part->g = colg1 - rVal * colg2;
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part->b = colb1 - rVal * colb2;
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}
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// set transparancy
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part->a = cola;
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// set gravity
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part->xg = 0.0f;
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part->yg = 0.0f;
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part->zg = 0.0f;
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ps->active = TRUE;
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max_new -= 1;
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}
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}
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fprintf (stderr, "generated new particles at mean position %i %i\n", mousePos.x (), mousePos.y ());
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}
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void
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ShowmouseScreen::damageRegion ()
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{
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int i;
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float w, h, x1, x2, y1, y2;
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if (!ps)
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return;
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x1 = screen->width ();
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x2 = 0;
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y1 = screen->height ();
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y2 = 0;
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for (i = 0; i < ps->particles.size (); i++)
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{
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Particle *p = ps->particles.at (i);
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if (!p)
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break;
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w = p->width / 2;
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h = p->height / 2;
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w += (w * p->w_mod) * p->life;
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h += (h * p->h_mod) * p->life;
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x1 = MIN (x1, p->x - w);
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x2 = MAX (x2, p->x + w);
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y1 = MIN (y1, p->y - h);
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y2 = MAX (y2, p->y + h);
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}
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CompRegion r (floor (x1), floor (y1), (ceil (x2) - floor (x1)),
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(ceil (y2) - floor (y1)));
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cScreen->damageRegion (r);
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}
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void
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ShowmouseScreen::positionUpdate (const CompPoint &p)
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{
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mousePos = p;
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}
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void
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ShowmouseScreen::preparePaint (int f_time)
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{
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if (active && !pollHandle.active ())
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{
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mousePos = MousePoller::getCurrentPosition ();
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pollHandle.start ();
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}
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if (active && !ps)
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{
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ps = new ParticleSystem (optionGetNumParticles ());
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if (!ps)
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{
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cScreen->preparePaint (f_time);
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return;
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}
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ps->slowdown = optionGetSlowdown ();
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ps->darken = optionGetDarken ();
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ps->blendMode = (optionGetBlend()) ? GL_ONE :
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GL_ONE_MINUS_SRC_ALPHA;
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glGenTextures(1, &ps->tex);
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glBindTexture(GL_TEXTURE_2D, ps->tex);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0,
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GL_RGBA, GL_UNSIGNED_BYTE, starTex);
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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rot = fmod (rot + (((float)f_time / 1000.0) * 2 * M_PI *
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optionGetRotationSpeed ()), 2 * M_PI);
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if (ps && ps->active)
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{
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ps->updateParticles (f_time);
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damageRegion ();
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}
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if (ps && active)
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genNewParticles (f_time);
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cScreen->preparePaint (f_time);
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}
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void
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ShowmouseScreen::donePaint ()
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{
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if (active || (ps && ps->active))
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damageRegion ();
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if (!active && pollHandle.active ())
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{
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pollHandle.stop ();
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}
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if (!active && ps && !ps->active)
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{
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ps->finiParticles ();
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delete ps;
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ps = NULL;
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}
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cScreen->donePaint ();
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}
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bool
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ShowmouseScreen::glPaintOutput (const GLScreenPaintAttrib &attrib,
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const GLMatrix &transform,
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const CompRegion ®ion,
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CompOutput *output,
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unsigned int mask)
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{
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bool status;
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GLMatrix sTransform;
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status = gScreen->glPaintOutput (attrib, transform, region, output, mask);
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if (!ps || !ps->active)
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return status;
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//sTransform.reset ();
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sTransform.toScreenSpace (output, -DEFAULT_Z_CAMERA);
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glPushMatrix ();
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glLoadMatrixf (sTransform.getMatrix ());
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ps->drawParticles ();
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fprintf (stderr, "drawing particles\n");
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glPopMatrix();
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glColor4usv (defaultColor);
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return status;
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}
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bool
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ShowmouseScreen::terminate (CompAction *action,
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CompAction::State state,
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CompOption::Vector options)
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{
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active = false;
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damageRegion ();
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return true;
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}
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bool
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ShowmouseScreen::initiate (CompAction *action,
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CompAction::State state,
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CompOption::Vector options)
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{
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if (active)
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return terminate (action, state, options);
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active = true;
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return true;
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}
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ShowmouseScreen::ShowmouseScreen (CompScreen *screen) :
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PluginClassHandler <ShowmouseScreen, CompScreen> (screen),
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cScreen (CompositeScreen::get (screen)),
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gScreen (GLScreen::get (screen)),
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active (false),
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ps (NULL),
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rot (0.0f)
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{
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CompositeScreenInterface::setHandler (cScreen);
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GLScreenInterface::setHandler (gScreen);
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pollHandle.setCallback (boost::bind (&ShowmouseScreen::positionUpdate, this,
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_1));
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optionSetInitiateInitiate (boost::bind (&ShowmouseScreen::initiate, this,
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_1, _2, _3));
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optionSetInitiateTerminate (boost::bind (&ShowmouseScreen::terminate, this,
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_1, _2, _3));
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optionSetInitiateButtonInitiate (boost::bind (&ShowmouseScreen::initiate,
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this, _1, _2, _3));
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optionSetInitiateButtonTerminate (boost::bind (&ShowmouseScreen::terminate,
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this, _1, _2, _3));
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optionSetInitiateEdgeInitiate (boost::bind (&ShowmouseScreen::initiate,
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this, _1, _2, _3));
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optionSetInitiateEdgeTerminate (boost::bind (&ShowmouseScreen::terminate,
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this, _1, _2, _3));
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}
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ShowmouseScreen::~ShowmouseScreen ()
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{
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if (ps)
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{
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ps->finiParticles ();
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delete ps;
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}
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if (pollHandle.active ())
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pollHandle.stop ();
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}
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bool
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ShowmousePluginVTable::init ()
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{
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if (!CompPlugin::checkPluginABI ("core", CORE_ABIVERSION) ||
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!CompPlugin::checkPluginABI ("composite", COMPIZ_COMPOSITE_ABI) ||
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!CompPlugin::checkPluginABI ("opengl", COMPIZ_OPENGL_ABI) ||
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!CompPlugin::checkPluginABI ("particlesystem", COMPIZ_PARTICLESYSTEM_ABI) ||
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!CompPlugin::checkPluginABI ("mousepoll", COMPIZ_MOUSEPOLL_ABI))
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return false;
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return true;
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}
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