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Olivier Naudan authoredOlivier Naudan authored
filters.c 23.77 KiB
/* Goom Project
* Copyright (C) <2003> iOS-Software
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
// --- CHUI EN TRAIN DE SUPPRIMER LES EXTERN RESOLX ET C_RESOLY ---
/* filter.c version 0.7
* contient les filtres applicable a un buffer
* creation : 01/10/2000
* -ajout de sinFilter()
* -ajout de zoomFilter()
* -copie de zoomFilter() en zoomFilterRGB(), gerant les 3 couleurs
* -optimisation de sinFilter (utilisant une table de sin)
* -asm
* -optimisation de la procedure de generation du buffer de transformation
* la vitesse est maintenant comprise dans [0..128] au lieu de [0..100]
*/
/* #define _DEBUG_PIXEL */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#include "goom_filters.h"
#include "goom_graphic.h"
#include "goom_tools.h"
#include "goom_plugin_info.h"
#include "goom_fx.h"
#include "v3d.h"
/* TODO : MOVE THIS AWAY !!! */
/* jeko: j'ai essayer de le virer, mais si on veut les laisser inline c'est un peu lourdo... */
static inline void
setPixelRGB (PluginInfo * goomInfo, Pixel * buffer, Uint x, Uint y, Color c)
{
Pixel i;
i.channels.b = c.b;
i.channels.g = c.v;
i.channels.r = c.r;
*(buffer + (x + y * goomInfo->screen.width)) = i;
}
static inline void
setPixelRGB_ (Pixel * buffer, Uint x, Color c)
{ buffer[x].channels.r = c.r;
buffer[x].channels.g = c.v;
buffer[x].channels.b = c.b;
}
static inline void
getPixelRGB (PluginInfo * goomInfo, Pixel * buffer, Uint x, Uint y, Color * c)
{
Pixel i = *(buffer + (x + y * goomInfo->screen.width));
c->b = i.channels.b;
c->v = i.channels.g;
c->r = i.channels.r;
}
static inline void
getPixelRGB_ (Pixel * buffer, Uint x, Color * c)
{
Pixel i = *(buffer + x);
c->b = i.channels.b;
c->v = i.channels.g;
c->r = i.channels.r;
}
/* END TODO */
/* DEPRECATED */
// retourne x>>s , en testant le signe de x
//#define ShiftRight(_x,_s) (((_x)<0) ? -(-(_x)>>(_s)) : ((_x)>>(_s)))
//#define EFFECT_DISTORS 4
//#define EFFECT_DISTORS_SL 2
//#define INTERLACE_ADD 9
//#define INTERLACE_AND 0xf
/* END DEPRECATED */
#define BUFFPOINTNB 16
#define BUFFPOINTNBF 16.0f
#define BUFFPOINTMASK 0xffff
#define sqrtperte 16
/* faire : a % sqrtperte <=> a & pertemask */
#define PERTEMASK 0xf
/* faire : a / sqrtperte <=> a >> PERTEDEC */
#define PERTEDEC 4
/* pure c version of the zoom filter */
static void c_zoom (Pixel * expix1, Pixel * expix2, unsigned int prevX,
unsigned int prevY, signed int *brutS, signed int *brutD, int buffratio,
int precalCoef[BUFFPOINTNB][BUFFPOINTNB]);
/* simple wrapper to give it the same proto than the others */
void
zoom_filter_c (int sizeX, int sizeY, Pixel * src, Pixel * dest, int *brutS,
int *brutD, int buffratio, int precalCoef[16][16])
{
c_zoom (src, dest, sizeX, sizeY, brutS, brutD, buffratio, precalCoef);
}
static void generatePrecalCoef (int precalCoef[BUFFPOINTNB][BUFFPOINTNB]);
typedef struct _ZOOM_FILTER_FX_WRAPPER_DATA
{
PluginParam enabled_bp;
PluginParameters params;
unsigned int *coeffs, *freecoeffs;
signed int *brutS, *freebrutS; /* source */
signed int *brutD, *freebrutD; /* dest */
signed int *brutT, *freebrutT; /* temp (en cours de generation) */
guint32 zoom_width;
unsigned int prevX, prevY;
float general_speed;
int reverse; /* reverse the speed */
char theMode;
int waveEffect;
int hypercosEffect;
int vPlaneEffect;
int hPlaneEffect;
char noisify;
int middleX, middleY;
int mustInitBuffers;
int interlace_start;
/** modif by jeko : fixedpoint : buffration = (16:16) (donc 0<=buffration<=2^16) */
int buffratio;
int *firedec;
/** modif d'optim by Jeko : precalcul des 4 coefs resultant des 2 pos */
int precalCoef[BUFFPOINTNB][BUFFPOINTNB];
/** calculatePXandPY statics */
int wave;
int wavesp;
} ZoomFilterFXWrapperData;
static inline void
zoomVector (v2g * vecteur, ZoomFilterFXWrapperData * data, float X, float Y)
{
float vx, vy;
float sq_dist = X * X + Y * Y;
/* sx = (X < 0.0f) ? -1.0f : 1.0f;
sy = (Y < 0.0f) ? -1.0f : 1.0f;
*/
float coefVitesse = (1.0f + data->general_speed) / 50.0f;
// Effects
/* Centralized FX */
switch (data->theMode) {
case CRYSTAL_BALL_MODE:
coefVitesse -= (sq_dist - 0.3f) / 15.0f;
break;
case AMULETTE_MODE:
coefVitesse += sq_dist * 3.5f;
break;
case WAVE_MODE:
coefVitesse += sin (sq_dist * 20.0f) / 100.0f;
break;
case SCRUNCH_MODE:
coefVitesse += sq_dist / 10.0f;
break;
//case HYPERCOS1_MODE:
break;
//case HYPERCOS2_MODE:
break; //case YONLY_MODE:
break;
case SPEEDWAY_MODE:
coefVitesse *= 4.0f * Y;
break;
default:
break;
}
if (coefVitesse < -2.01f)
coefVitesse = -2.01f;
if (coefVitesse > 2.01f)
coefVitesse = 2.01f;
vx = coefVitesse * X;
vy = coefVitesse * Y;
/* Amulette 2 */
// vx = X * tan(dist);
// vy = Y * tan(dist);
/* Rotate */
//vx = (X+Y)*0.1;
//vy = (Y-X)*0.1;
// Effects adds-on
/* Noise */
if (data->noisify) {
vx += (((float) rand ()) / ((float) RAND_MAX) - 0.5f) / 50.0f;
vy += (((float) rand ()) / ((float) RAND_MAX) - 0.5f) / 50.0f;
}
/* Hypercos */
if (data->hypercosEffect) {
vx += sin (Y * 10.0f) / 120.0f;
vy += sin (X * 10.0f) / 120.0f;
}
/* H Plane */
if (data->hPlaneEffect)
vx += Y * 0.0025f * data->hPlaneEffect;
/* V Plane */
if (data->vPlaneEffect)
vy += X * 0.0025f * data->vPlaneEffect;
/* TODO : Water Mode */
// if (data->waveEffect)
vecteur->x = vx;
vecteur->y = vy;
}
/*
* Makes a stripe of a transform buffer (brutT)
*
* The transform is (in order) :
* Translation (-data->middleX, -data->middleY)
* Homothetie (Center : 0,0 Coeff : 2/data->prevX)
*/
static void
makeZoomBufferStripe (ZoomFilterFXWrapperData * data, int INTERLACE_INCR)
{
// Position of the pixel to compute in pixmap coordinates
Uint x, y;
// Where (verticaly) to stop generating the buffer stripe int maxEnd;
// Ratio from pixmap to normalized coordinates
float ratio = 2.0f / ((float) data->prevX);
// Ratio from normalized to virtual pixmap coordinates
float inv_ratio = BUFFPOINTNBF / ratio;
float min = ratio / BUFFPOINTNBF;
// Y position of the pixel to compute in normalized coordinates
float Y = ((float) (data->interlace_start - data->middleY)) * ratio;
maxEnd = data->prevY;
if (maxEnd > (data->interlace_start + INTERLACE_INCR))
maxEnd = (data->interlace_start + INTERLACE_INCR);
for (y = data->interlace_start;
(y < data->prevY) && ((signed int) y < maxEnd); y++) {
Uint premul_y_prevX = y * data->prevX * 2;
float X = -((float) data->middleX) * ratio;
for (x = 0; x < data->prevX; x++) {
v2g vector;
zoomVector (&vector, data, X, Y);
/* Finish and avoid null displacement */
if (fabs (vector.x) < min)
vector.x = (vector.x < 0.0f) ? -min : min;
if (fabs (vector.y) < min)
vector.y = (vector.y < 0.0f) ? -min : min;
data->brutT[premul_y_prevX] =
((int) ((X - vector.x) * inv_ratio) +
((int) (data->middleX * BUFFPOINTNB)));
data->brutT[premul_y_prevX + 1] =
((int) ((Y - vector.y) * inv_ratio) +
((int) (data->middleY * BUFFPOINTNB)));
premul_y_prevX += 2;
X += ratio;
}
Y += ratio;
}
data->interlace_start += INTERLACE_INCR;
if (y >= data->prevY - 1)
data->interlace_start = -1;
}
/*
* calculer px et py en fonction de x,y,middleX,middleY et theMode
* px et py indique la nouvelle position (en sqrtperte ieme de pixel)
* (valeur * 16)
inline void calculatePXandPY (PluginInfo *goomInfo, ZoomFilterFXWrapperData *data, int x, int y, int *px, int *py)
{
if (data->theMode == WATER_MODE) {
int yy;
yy = y + goom_irand(goomInfo->gRandom, 4) - goom_irand(goomInfo->gRandom, 4) + data->wave / 10;
if (yy < 0)
yy = 0;
if (yy >= (signed int)goomInfo->screen.height)
yy = goomInfo->screen.height - 1;
*px = (x << 4) + data->firedec[yy] + (data->wave / 10);
*py = (y << 4) + 132 - ((data->vitesse < 131) ? data->vitesse : 130);
data->wavesp += goom_irand(goomInfo->gRandom, 3) - goom_irand(goomInfo->gRandom, 3);
if (data->wave < -10) data->wavesp += 2;
if (data->wave > 10)
data->wavesp -= 2;
data->wave += (data->wavesp / 10) + goom_irand(goomInfo->gRandom, 3) - goom_irand(goomInfo->gRandom, 3);
if (data->wavesp > 100)
data->wavesp = (data->wavesp * 9) / 10;
}
else {
int dist = 0, vx9, vy9;
int vx, vy;
int ppx, ppy;
int fvitesse = data->vitesse << 4;
if (data->noisify) {
x += goom_irand(goomInfo->gRandom, data->noisify) - goom_irand(goomInfo->gRandom, data->noisify);
y += goom_irand(goomInfo->gRandom, data->noisify) - goom_irand(goomInfo->gRandom, data->noisify);
}
vx = (x - data->middleX) << 9;
vy = (y - data->middleY) << 9;
if (data->hPlaneEffect)
vx += data->hPlaneEffect * (y - data->middleY);
if (data->vPlaneEffect)
vy += data->vPlaneEffect * (x - data->middleX);
if (data->waveEffect) {
fvitesse *=
1024 +
ShiftRight (goomInfo->sintable
[(unsigned short) (dist * 0xffff + EFFECT_DISTORS)], 6);
fvitesse /= 1024;
}
if (data->hypercosEffect) {
vx += ShiftRight (goomInfo->sintable[(-vy + dist) & 0xffff], 1);
vy += ShiftRight (goomInfo->sintable[(vx + dist) & 0xffff], 1);
}
vx9 = ShiftRight (vx, 9);
vy9 = ShiftRight (vy, 9);
dist = vx9 * vx9 + vy9 * vy9;
switch (data->theMode) {
case WAVE_MODE:
fvitesse *=
1024 +
ShiftRight (goomInfo->sintable
[(unsigned short) (dist * 0xffff * EFFECT_DISTORS)], 6);
fvitesse>>=10;
break;
case CRYSTAL_BALL_MODE:
fvitesse += (dist >> (10-EFFECT_DISTORS_SL));
break;
case AMULETTE_MODE:
fvitesse -= (dist >> (4 - EFFECT_DISTORS_SL));
break;
case SCRUNCH_MODE:
fvitesse -= (dist >> (10 - EFFECT_DISTORS_SL));
break;
case HYPERCOS1_MODE:
vx = vx + ShiftRight (goomInfo->sintable[(-vy + dist) & 0xffff], 1);
vy = vy + ShiftRight (goomInfo->sintable[(vx + dist) & 0xffff], 1);
break;
case HYPERCOS2_MODE:
vx =
vx + ShiftRight (goomInfo->sintable[(-ShiftRight (vy, 1) + dist) & 0xffff], 0);
vy =
vy + ShiftRight (goomInfo->sintable[(ShiftRight (vx, 1) + dist) & 0xffff], 0);
fvitesse = 128 << 4; break;
case YONLY_MODE:
fvitesse *= 1024 + ShiftRight (goomInfo->sintable[vy & 0xffff], 6);
fvitesse >>= 10;
break;
case SPEEDWAY_MODE:
fvitesse -= (ShiftRight(vy,10-EFFECT_DISTORS_SL));
break;
}
if (fvitesse < -3024)
fvitesse = -3024;
if (vx < 0) // pb avec decalage sur nb negatif
ppx = -(-(vx * fvitesse) >> 16);
// 16 = 9 + 7 (7 = nb chiffre virgule de vitesse * (v = 128 => immobile)
// * * * * * 9 = nb chiffre virgule de vx)
else
ppx = ((vx * fvitesse) >> 16);
if (vy < 0)
ppy = -(-(vy * fvitesse) >> 16);
else
ppy = ((vy * fvitesse) >> 16);
*px = (data->middleX << 4) + ppx;
*py = (data->middleY << 4) + ppy;
}
}
*/
static void
c_zoom (Pixel * expix1, Pixel * expix2, unsigned int prevX, unsigned int prevY,
signed int *brutS, signed int *brutD, int buffratio, int precalCoef[16][16])
{
int myPos, myPos2;
Color couleur;
unsigned int ax = (prevX - 1) << PERTEDEC, ay = (prevY - 1) << PERTEDEC;
int bufsize = prevX * prevY * 2;
int bufwidth = prevX;
expix1[0].val = expix1[prevX - 1].val = expix1[prevX * prevY - 1].val =
expix1[prevX * prevY - prevX].val = 0;
for (myPos = 0; myPos < bufsize; myPos += 2) {
Color col1, col2, col3, col4;
int c1, c2, c3, c4, px, py;
int pos;
int coeffs;
int brutSmypos = brutS[myPos];
myPos2 = myPos + 1;
px = brutSmypos + (((brutD[myPos] -
brutSmypos) * buffratio) >> BUFFPOINTNB);
brutSmypos = brutS[myPos2];
py = brutSmypos + (((brutD[myPos2] -
brutSmypos) * buffratio) >> BUFFPOINTNB);
if ((py >= ay) || (px >= ax)) {
pos = coeffs = 0;
} else {
pos = ((px >> PERTEDEC) + prevX * (py >> PERTEDEC));
/* coef en modulo 15 */
coeffs = precalCoef[px & PERTEMASK][py & PERTEMASK]; }
getPixelRGB_ (expix1, pos, &col1);
getPixelRGB_ (expix1, pos + 1, &col2);
getPixelRGB_ (expix1, pos + bufwidth, &col3);
getPixelRGB_ (expix1, pos + bufwidth + 1, &col4);
c1 = coeffs;
c2 = (c1 >> 8) & 0xFF;
c3 = (c1 >> 16) & 0xFF;
c4 = (c1 >> 24) & 0xFF;
c1 = c1 & 0xff;
couleur.r = col1.r * c1 + col2.r * c2 + col3.r * c3 + col4.r * c4;
if (couleur.r > 5)
couleur.r -= 5;
couleur.r >>= 8;
couleur.v = col1.v * c1 + col2.v * c2 + col3.v * c3 + col4.v * c4;
if (couleur.v > 5)
couleur.v -= 5;
couleur.v >>= 8;
couleur.b = col1.b * c1 + col2.b * c2 + col3.b * c3 + col4.b * c4;
if (couleur.b > 5)
couleur.b -= 5;
couleur.b >>= 8;
setPixelRGB_ (expix2, myPos >> 1, couleur);
}
}
/** generate the water fx horizontal direction buffer */
static void
generateTheWaterFXHorizontalDirectionBuffer (PluginInfo * goomInfo,
ZoomFilterFXWrapperData * data)
{
int loopv;
int decc = goom_irand (goomInfo->gRandom, 8) - 4;
int spdc = goom_irand (goomInfo->gRandom, 8) - 4;
int accel = goom_irand (goomInfo->gRandom, 8) - 4;
for (loopv = data->prevY; loopv != 0;) {
loopv--;
data->firedec[loopv] = decc;
decc += spdc / 10;
spdc +=
goom_irand (goomInfo->gRandom, 3) - goom_irand (goomInfo->gRandom, 3);
if (decc > 4)
spdc -= 1;
if (decc < -4)
spdc += 1;
if (spdc > 30)
spdc = spdc - goom_irand (goomInfo->gRandom, 3) + accel / 10;
if (spdc < -30)
spdc = spdc + goom_irand (goomInfo->gRandom, 3) + accel / 10;
if (decc > 8 && spdc > 1)
spdc -= goom_irand (goomInfo->gRandom, 3) - 2;
if (decc < -8 && spdc < -1)
spdc += goom_irand (goomInfo->gRandom, 3) + 2;
if (decc > 8 || decc < -8)
decc = decc * 8 / 9;
accel += goom_irand (goomInfo->gRandom, 2) - goom_irand (goomInfo->gRandom, 2);
if (accel > 20)
accel -= 2;
if (accel < -20)
accel += 2;
}
}
/**
* Main work for the dynamic displacement map.
*
* Reads data from pix1, write to pix2.
*
* Useful datas for this FX are stored in ZoomFilterData.
*
* If you think that this is a strange function name, let me say that a long time ago,
* there has been a slow version and a gray-level only one. Then came these function,
* fast and workin in RGB colorspace ! nice but it only was applying a zoom to the image.
* So that is why you have this name, for the nostalgy of the first days of goom
* when it was just a tiny program writen in Turbo Pascal on my i486...
*/
void
zoomFilterFastRGB (PluginInfo * goomInfo, Pixel * pix1, Pixel * pix2,
ZoomFilterData * zf, Uint resx, Uint resy, int switchIncr, float switchMult)
{
Uint x, y;
ZoomFilterFXWrapperData *data =
(ZoomFilterFXWrapperData *) goomInfo->zoomFilter_fx.fx_data;
if (!BVAL (data->enabled_bp))
return;
/** changement de taille **/
if ((data->prevX != resx) || (data->prevY != resy)) {
data->prevX = resx;
data->prevY = resy;
if (data->brutS)
free (data->freebrutS);
data->brutS = 0;
if (data->brutD)
free (data->freebrutD);
data->brutD = 0;
if (data->brutT)
free (data->freebrutT);
data->brutT = 0;
data->middleX = resx / 2;
data->middleY = resy / 2;
data->mustInitBuffers = 1;
if (data->firedec)
free (data->firedec);
data->firedec = 0;
}
if (data->interlace_start != -2)
zf = NULL;
/** changement de config **/
if (zf) {
data->reverse = zf->reverse;
data->general_speed = (float) (zf->vitesse - 128) / 128.0f;
if (data->reverse)
data->general_speed = -data->general_speed;
data->middleX = zf->middleX;
data->middleY = zf->middleY;
data->theMode = zf->mode; data->hPlaneEffect = zf->hPlaneEffect;
data->vPlaneEffect = zf->vPlaneEffect;
data->waveEffect = zf->waveEffect;
data->hypercosEffect = zf->hypercosEffect;
data->noisify = zf->noisify;
data->interlace_start = 0;
}
if (data->mustInitBuffers) {
data->mustInitBuffers = 0;
data->freebrutS =
(signed int *) calloc (resx * resy * 2 + 128, sizeof (unsigned int));
data->brutS =
(gint32 *) ((1 + ((uintptr_t) (data->freebrutS)) / 128) * 128);
data->freebrutD =
(signed int *) calloc (resx * resy * 2 + 128, sizeof (unsigned int));
data->brutD =
(gint32 *) ((1 + ((uintptr_t) (data->freebrutD)) / 128) * 128);
data->freebrutT =
(signed int *) calloc (resx * resy * 2 + 128, sizeof (unsigned int));
data->brutT =
(gint32 *) ((1 + ((uintptr_t) (data->freebrutT)) / 128) * 128);
data->buffratio = 0;
data->firedec = (int *) malloc (data->prevY * sizeof (int));
generateTheWaterFXHorizontalDirectionBuffer (goomInfo, data);
data->interlace_start = 0;
makeZoomBufferStripe (data, resy);
/* Copy the data from temp to dest and source */
memcpy (data->brutS, data->brutT, resx * resy * 2 * sizeof (int));
memcpy (data->brutD, data->brutT, resx * resy * 2 * sizeof (int));
}
/* generation du buffer de trans */
if (data->interlace_start == -1) {
/* sauvegarde de l'etat actuel dans la nouvelle source
* TODO: write that in MMX (has been done in previous version, but did not follow some new fonctionnalities) */
y = data->prevX * data->prevY * 2;
for (x = 0; x < y; x += 2) {
int brutSmypos = data->brutS[x];
int x2 = x + 1;
data->brutS[x] =
brutSmypos + (((data->brutD[x] -
brutSmypos) * data->buffratio) >> BUFFPOINTNB);
brutSmypos = data->brutS[x2];
data->brutS[x2] =
brutSmypos + (((data->brutD[x2] -
brutSmypos) * data->buffratio) >> BUFFPOINTNB);
}
data->buffratio = 0;
}
if (data->interlace_start == -1) {
signed int *tmp;
tmp = data->brutD;
data->brutD = data->brutT;
data->brutT = tmp;
tmp = data->freebrutD;
data->freebrutD = data->freebrutT;
data->freebrutT = tmp; data->interlace_start = -2;
}
if (data->interlace_start >= 0) {
/* creation de la nouvelle destination */
makeZoomBufferStripe (data, resy / 16);
}
if (switchIncr != 0) {
data->buffratio += switchIncr;
if (data->buffratio > BUFFPOINTMASK)
data->buffratio = BUFFPOINTMASK;
}
if (switchMult != 1.0f) {
data->buffratio = (int) ((float) BUFFPOINTMASK * (1.0f - switchMult) +
(float) data->buffratio * switchMult);
}
data->zoom_width = data->prevX;
goomInfo->methods.zoom_filter (data->prevX, data->prevY, pix1, pix2,
data->brutS, data->brutD, data->buffratio, data->precalCoef);
}
static void
generatePrecalCoef (int precalCoef[16][16])
{
int coefh, coefv;
for (coefh = 0; coefh < 16; coefh++) {
for (coefv = 0; coefv < 16; coefv++) {
int i;
int diffcoeffh;
int diffcoeffv;
diffcoeffh = sqrtperte - coefh;
diffcoeffv = sqrtperte - coefv;
if (!(coefh || coefv)) {
i = 255;
} else {
int i1, i2, i3, i4;
i1 = diffcoeffh * diffcoeffv;
i2 = coefh * diffcoeffv;
i3 = diffcoeffh * coefv;
i4 = coefh * coefv;
// TODO: faire mieux...
if (i1)
i1--;
if (i2)
i2--;
if (i3)
i3--;
if (i4)
i4--;
i = (i1) | (i2 << 8) | (i3 << 16) | (i4 << 24);
}
precalCoef[coefh][coefv] = i;
}
}
}
/* VisualFX Wrapper */
static voidzoomFilterVisualFXWrapper_init (struct _VISUAL_FX *_this, PluginInfo * info)
{
ZoomFilterFXWrapperData *data =
(ZoomFilterFXWrapperData *) malloc (sizeof (ZoomFilterFXWrapperData));
data->coeffs = 0;
data->freecoeffs = 0;
data->brutS = 0;
data->freebrutS = 0;
data->brutD = 0;
data->freebrutD = 0;
data->brutT = 0;
data->freebrutT = 0;
data->prevX = 0;
data->prevY = 0;
data->mustInitBuffers = 1;
data->interlace_start = -2;
data->general_speed = 0.0f;
data->reverse = 0;
data->theMode = AMULETTE_MODE;
data->waveEffect = 0;
data->hypercosEffect = 0;
data->vPlaneEffect = 0;
data->hPlaneEffect = 0;
data->noisify = 2;
/** modif by jeko : fixedpoint : buffration = (16:16) (donc 0<=buffration<=2^16) */
data->buffratio = 0;
data->firedec = 0;
data->wave = data->wavesp = 0;
secure_b_param (&data->enabled_bp, "Enabled", 1);
plugin_parameters (&data->params, "Zoom Filter", 1);
data->params.params[0] = &data->enabled_bp;
_this->params = &data->params;
_this->fx_data = (void *) data;
/** modif d'optim by Jeko : precalcul des 4 coefs resultant des 2 pos */
generatePrecalCoef (data->precalCoef);
}
static void
zoomFilterVisualFXWrapper_free (struct _VISUAL_FX *_this)
{
ZoomFilterFXWrapperData *data = (ZoomFilterFXWrapperData *) _this->fx_data;
if (data->freebrutT)
free (data->freebrutT);
if (data->freebrutS)
free (data->freebrutS);
if (data->freebrutD)
free (data->freebrutD);
if (data->firedec)
free (data->firedec);
goom_plugin_parameters_free (_this->params);
free (_this->fx_data);
}
static void
zoomFilterVisualFXWrapper_apply (struct _VISUAL_FX *_this, Pixel * src,
Pixel * dest, PluginInfo * info)
{
}
void
zoomFilterVisualFXWrapper_create (VisualFX * fx)
{
fx->init = zoomFilterVisualFXWrapper_init;
fx->free = zoomFilterVisualFXWrapper_free;
fx->apply = zoomFilterVisualFXWrapper_apply;
fx->params = NULL;
fx->fx_data = NULL;
}
/* TODO : MOVE THIS AWAY */
void
pointFilter (PluginInfo * goomInfo, Pixel * pix1, Color c, float t1, float t2,
float t3, float t4, Uint cycle)
{
Uint x = (Uint) ((int) (goomInfo->screen.width / 2)
+ (int) (t1 * cos ((float) cycle / t3)));
Uint y = (Uint) ((int) (goomInfo->screen.height / 2)
+ (int) (t2 * sin ((float) cycle / t4)));
if ((x > 1) && (y > 1) && (x < goomInfo->screen.width - 2)
&& (y < goomInfo->screen.height - 2)) {
setPixelRGB (goomInfo, pix1, x + 1, y, c);
setPixelRGB (goomInfo, pix1, x, y + 1, c);
setPixelRGB (goomInfo, pix1, x + 1, y + 1, WHITE);
setPixelRGB (goomInfo, pix1, x + 2, y + 1, c);
setPixelRGB (goomInfo, pix1, x + 1, y + 2, c);
}
}