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-rw-r--r--gst/goom/ifs.c776
1 files changed, 776 insertions, 0 deletions
diff --git a/gst/goom/ifs.c b/gst/goom/ifs.c
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+/*
+ * ifs.c --- modified iterated functions system for goom.
+ */
+
+/*-
+ * Copyright (c) 1997 by Massimino Pascal <Pascal.Massimon@ens.fr>
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted,
+ * provided that the above copyright notice appear in all copies and that
+ * both that copyright notice and this permission notice appear in
+ * supporting documentation.
+ *
+ * This file is provided AS IS with no warranties of any kind. The author
+ * shall have no liability with respect to the infringement of copyrights,
+ * trade secrets or any patents by this file or any part thereof. In no
+ * event will the author be liable for any lost revenue or profits or
+ * other special, indirect and consequential damages.
+ *
+ * If this mode is weird and you have an old MetroX server, it is buggy.
+ * There is a free SuSE-enhanced MetroX X server that is fine.
+ *
+ * When shown ifs, Diana Rose (4 years old) said, "It looks like dancing."
+ *
+ * Revision History:
+ * 13-Dec-2003: Added some goom specific stuffs (to make ifs a VisualFX).
+ * 11-Apr-2002: jeko@ios-software.com: Make ifs.c system-indendant. (ifs.h added)
+ * 01-Nov-2000: Allocation checks
+ * 10-May-1997: jwz@jwz.org: turned into a standalone program.
+ * Made it render into an offscreen bitmap and then copy
+ * that onto the screen, to reduce flicker.
+ */
+
+/* #ifdef STANDALONE */
+
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "goom_config.h"
+
+#ifdef HAVE_MMX
+#include "mmx.h"
+#endif
+
+#include "goom_graphic.h"
+#include "ifs.h"
+#include "goom_tools.h"
+
+typedef struct _ifsPoint
+{
+ gint32 x, y;
+}
+IFSPoint;
+
+
+#define MODE_ifs
+
+#define PROGCLASS "IFS"
+
+#define HACK_INIT init_ifs
+#define HACK_DRAW draw_ifs
+
+#define ifs_opts xlockmore_opts
+
+#define DEFAULTS "*delay: 20000 \n" \
+"*ncolors: 100 \n"
+
+#define SMOOTH_COLORS
+
+#define LRAND() ((long) (goom_random(goomInfo->gRandom) & 0x7fffffff))
+#define NRAND(n) ((int) (LRAND() % (n)))
+
+#if RAND_MAX < 0x10000
+#define MAXRAND (((float)(RAND_MAX<16)+((float)RAND_MAX)+1.0f)/127.0f)
+#else
+#define MAXRAND (2147483648.0/127.0) /* unsigned 1<<31 / 127.0 (cf goom_tools) as a float */
+#endif
+
+/*****************************************************/
+
+typedef float DBL;
+typedef int F_PT;
+
+/* typedef float F_PT; */
+
+/*****************************************************/
+
+#define FIX 12
+#define UNIT ( 1<<FIX )
+#define MAX_SIMI 6
+
+#define MAX_DEPTH_2 10
+#define MAX_DEPTH_3 6
+#define MAX_DEPTH_4 4
+#define MAX_DEPTH_5 2
+
+/* PREVIOUS VALUE
+#define MAX_SIMI 6
+
+ * settings for a PC 120Mhz... *
+#define MAX_DEPTH_2 10
+#define MAX_DEPTH_3 6
+#define MAX_DEPTH_4 4
+#define MAX_DEPTH_5 3
+*/
+
+#define DBL_To_F_PT(x) (F_PT)( (DBL)(UNIT)*(x) )
+
+typedef struct Similitude_Struct SIMI;
+typedef struct Fractal_Struct FRACTAL;
+
+struct Similitude_Struct
+{
+
+ DBL c_x, c_y;
+ DBL r, r2, A, A2;
+ F_PT Ct, St, Ct2, St2;
+ F_PT Cx, Cy;
+ F_PT R, R2;
+};
+
+
+struct Fractal_Struct
+{
+
+ int Nb_Simi;
+ SIMI Components[5 * MAX_SIMI];
+ int Depth, Col;
+ int Count, Speed;
+ int Width, Height, Lx, Ly;
+ DBL r_mean, dr_mean, dr2_mean;
+ int Cur_Pt, Max_Pt;
+
+ IFSPoint *Buffer1, *Buffer2;
+};
+
+typedef struct _IFS_DATA
+{
+ FRACTAL *Root;
+ FRACTAL *Cur_F;
+
+ /* Used by the Trace recursive method */
+ IFSPoint *Buf;
+ int Cur_Pt;
+ int initalized;
+} IfsData;
+
+
+/*****************************************************/
+
+static DBL
+Gauss_Rand (PluginInfo * goomInfo, DBL c, DBL A, DBL S)
+{
+ DBL y;
+
+ y = (DBL) LRAND () / MAXRAND;
+ y = A * (1.0 - exp (-y * y * S)) / (1.0 - exp (-S));
+ if (NRAND (2))
+ return (c + y);
+ return (c - y);
+}
+
+static DBL
+Half_Gauss_Rand (PluginInfo * goomInfo, DBL c, DBL A, DBL S)
+{
+ DBL y;
+
+ y = (DBL) LRAND () / MAXRAND;
+ y = A * (1.0 - exp (-y * y * S)) / (1.0 - exp (-S));
+ return (c + y);
+}
+
+static void
+Random_Simis (PluginInfo * goomInfo, FRACTAL * F, SIMI * Cur, int i)
+{
+ while (i--) {
+ Cur->c_x = Gauss_Rand (goomInfo, 0.0, .8, 4.0);
+ Cur->c_y = Gauss_Rand (goomInfo, 0.0, .8, 4.0);
+ Cur->r = Gauss_Rand (goomInfo, F->r_mean, F->dr_mean, 3.0);
+ Cur->r2 = Half_Gauss_Rand (goomInfo, 0.0, F->dr2_mean, 2.0);
+ Cur->A = Gauss_Rand (goomInfo, 0.0, 360.0, 4.0) * (M_PI / 180.0);
+ Cur->A2 = Gauss_Rand (goomInfo, 0.0, 360.0, 4.0) * (M_PI / 180.0);
+ Cur++;
+ }
+}
+
+static void
+free_ifs_buffers (FRACTAL * Fractal)
+{
+ if (Fractal->Buffer1 != NULL) {
+ (void) free ((void *) Fractal->Buffer1);
+ Fractal->Buffer1 = (IFSPoint *) NULL;
+ }
+ if (Fractal->Buffer2 != NULL) {
+ (void) free ((void *) Fractal->Buffer2);
+ Fractal->Buffer2 = (IFSPoint *) NULL;
+ }
+}
+
+
+static void
+free_ifs (FRACTAL * Fractal)
+{
+ free_ifs_buffers (Fractal);
+}
+
+/***************************************************************/
+
+static void
+init_ifs (PluginInfo * goomInfo, IfsData * data)
+{
+ int i;
+ FRACTAL *Fractal;
+ int width = goomInfo->screen.width;
+ int height = goomInfo->screen.height;
+
+ if (data->Root == NULL) {
+ data->Root = (FRACTAL *) malloc (sizeof (FRACTAL));
+ if (data->Root == NULL)
+ return;
+ data->Root->Buffer1 = (IFSPoint *) NULL;
+ data->Root->Buffer2 = (IFSPoint *) NULL;
+ }
+ Fractal = data->Root;
+
+ free_ifs_buffers (Fractal);
+
+ i = (NRAND (4)) + 2; /* Number of centers */
+ switch (i) {
+ case 3:
+ Fractal->Depth = MAX_DEPTH_3;
+ Fractal->r_mean = .6;
+ Fractal->dr_mean = .4;
+ Fractal->dr2_mean = .3;
+ break;
+
+ case 4:
+ Fractal->Depth = MAX_DEPTH_4;
+ Fractal->r_mean = .5;
+ Fractal->dr_mean = .4;
+ Fractal->dr2_mean = .3;
+ break;
+
+ case 5:
+ Fractal->Depth = MAX_DEPTH_5;
+ Fractal->r_mean = .5;
+ Fractal->dr_mean = .4;
+ Fractal->dr2_mean = .3;
+ break;
+
+ default:
+ case 2:
+ Fractal->Depth = MAX_DEPTH_2;
+ Fractal->r_mean = .7;
+ Fractal->dr_mean = .3;
+ Fractal->dr2_mean = .4;
+ break;
+ }
+ Fractal->Nb_Simi = i;
+ Fractal->Max_Pt = Fractal->Nb_Simi - 1;
+ for (i = 0; i <= Fractal->Depth + 2; ++i)
+ Fractal->Max_Pt *= Fractal->Nb_Simi;
+
+ if ((Fractal->Buffer1 = (IFSPoint *) calloc (Fractal->Max_Pt,
+ sizeof (IFSPoint))) == NULL) {
+ free_ifs (Fractal);
+ return;
+ }
+ if ((Fractal->Buffer2 = (IFSPoint *) calloc (Fractal->Max_Pt,
+ sizeof (IFSPoint))) == NULL) {
+ free_ifs (Fractal);
+ return;
+ }
+
+ Fractal->Speed = 6;
+ Fractal->Width = width; /* modif by JeKo */
+ Fractal->Height = height; /* modif by JeKo */
+ Fractal->Cur_Pt = 0;
+ Fractal->Count = 0;
+ Fractal->Lx = (Fractal->Width - 1) / 2;
+ Fractal->Ly = (Fractal->Height - 1) / 2;
+ Fractal->Col = rand () % (width * height); /* modif by JeKo */
+
+ Random_Simis (goomInfo, Fractal, Fractal->Components, 5 * MAX_SIMI);
+}
+
+
+/***************************************************************/
+
+static inline void
+Transform (SIMI * Simi, F_PT xo, F_PT yo, F_PT * x, F_PT * y)
+{
+ F_PT xx, yy;
+
+ xo = xo - Simi->Cx;
+ xo = (xo * Simi->R) >> FIX; /* / UNIT; */
+ yo = yo - Simi->Cy;
+ yo = (yo * Simi->R) >> FIX; /* / UNIT; */
+
+ xx = xo - Simi->Cx;
+ xx = (xx * Simi->R2) >> FIX; /* / UNIT; */
+ yy = -yo - Simi->Cy;
+ yy = (yy * Simi->R2) >> FIX; /* / UNIT; */
+
+ *x = ((xo * Simi->Ct - yo * Simi->St + xx * Simi->Ct2 - yy * Simi->St2)
+ >> FIX /* / UNIT */ ) + Simi->Cx;
+ *y = ((xo * Simi->St + yo * Simi->Ct + xx * Simi->St2 + yy * Simi->Ct2)
+ >> FIX /* / UNIT */ ) + Simi->Cy;
+}
+
+/***************************************************************/
+
+static void
+Trace (FRACTAL * F, F_PT xo, F_PT yo, IfsData * data)
+{
+ F_PT x, y, i;
+ SIMI *Cur;
+
+ Cur = data->Cur_F->Components;
+ for (i = data->Cur_F->Nb_Simi; i; --i, Cur++) {
+ Transform (Cur, xo, yo, &x, &y);
+
+ data->Buf->x = F->Lx + ((x * F->Lx) >> (FIX + 1) /* /(UNIT*2) */ );
+ data->Buf->y = F->Ly - ((y * F->Ly) >> (FIX + 1) /* /(UNIT*2) */ );
+ data->Buf++;
+
+ data->Cur_Pt++;
+
+ if (F->Depth && ((x - xo) >> 4) && ((y - yo) >> 4)) {
+ F->Depth--;
+ Trace (F, x, y, data);
+ F->Depth++;
+ }
+ }
+}
+
+static void
+Draw_Fractal (IfsData * data)
+{
+ FRACTAL *F = data->Root;
+ int i, j;
+ F_PT x, y, xo, yo;
+ SIMI *Cur, *Simi;
+
+ for (Cur = F->Components, i = F->Nb_Simi; i; --i, Cur++) {
+ Cur->Cx = DBL_To_F_PT (Cur->c_x);
+ Cur->Cy = DBL_To_F_PT (Cur->c_y);
+
+ Cur->Ct = DBL_To_F_PT (cos (Cur->A));
+ Cur->St = DBL_To_F_PT (sin (Cur->A));
+ Cur->Ct2 = DBL_To_F_PT (cos (Cur->A2));
+ Cur->St2 = DBL_To_F_PT (sin (Cur->A2));
+
+ Cur->R = DBL_To_F_PT (Cur->r);
+ Cur->R2 = DBL_To_F_PT (Cur->r2);
+ }
+
+
+ data->Cur_Pt = 0;
+ data->Cur_F = F;
+ data->Buf = F->Buffer2;
+ for (Cur = F->Components, i = F->Nb_Simi; i; --i, Cur++) {
+ xo = Cur->Cx;
+ yo = Cur->Cy;
+ for (Simi = F->Components, j = F->Nb_Simi; j; --j, Simi++) {
+ if (Simi == Cur)
+ continue;
+ Transform (Simi, xo, yo, &x, &y);
+ Trace (F, x, y, data);
+ }
+ }
+
+ /* Erase previous */
+
+ F->Cur_Pt = data->Cur_Pt;
+ data->Buf = F->Buffer1;
+ F->Buffer1 = F->Buffer2;
+ F->Buffer2 = data->Buf;
+}
+
+
+static IFSPoint *
+draw_ifs (PluginInfo * goomInfo, int *nbpt, IfsData * data)
+{
+ int i;
+ DBL u, uu, v, vv, u0, u1, u2, u3;
+ SIMI *S, *S1, *S2, *S3, *S4;
+ FRACTAL *F;
+
+ if (data->Root == NULL)
+ return NULL;
+ F = data->Root;
+ if (F->Buffer1 == NULL)
+ return NULL;
+
+ u = (DBL) (F->Count) * (DBL) (F->Speed) / 1000.0;
+ uu = u * u;
+ v = 1.0 - u;
+ vv = v * v;
+ u0 = vv * v;
+ u1 = 3.0 * vv * u;
+ u2 = 3.0 * v * uu;
+ u3 = u * uu;
+
+ S = F->Components;
+ S1 = S + F->Nb_Simi;
+ S2 = S1 + F->Nb_Simi;
+ S3 = S2 + F->Nb_Simi;
+ S4 = S3 + F->Nb_Simi;
+
+ for (i = F->Nb_Simi; i; --i, S++, S1++, S2++, S3++, S4++) {
+ S->c_x = u0 * S1->c_x + u1 * S2->c_x + u2 * S3->c_x + u3 * S4->c_x;
+ S->c_y = u0 * S1->c_y + u1 * S2->c_y + u2 * S3->c_y + u3 * S4->c_y;
+ S->r = u0 * S1->r + u1 * S2->r + u2 * S3->r + u3 * S4->r;
+ S->r2 = u0 * S1->r2 + u1 * S2->r2 + u2 * S3->r2 + u3 * S4->r2;
+ S->A = u0 * S1->A + u1 * S2->A + u2 * S3->A + u3 * S4->A;
+ S->A2 = u0 * S1->A2 + u1 * S2->A2 + u2 * S3->A2 + u3 * S4->A2;
+ }
+
+ Draw_Fractal (data);
+
+ if (F->Count >= 1000 / F->Speed) {
+ S = F->Components;
+ S1 = S + F->Nb_Simi;
+ S2 = S1 + F->Nb_Simi;
+ S3 = S2 + F->Nb_Simi;
+ S4 = S3 + F->Nb_Simi;
+
+ for (i = F->Nb_Simi; i; --i, S++, S1++, S2++, S3++, S4++) {
+ S2->c_x = 2.0 * S4->c_x - S3->c_x;
+ S2->c_y = 2.0 * S4->c_y - S3->c_y;
+ S2->r = 2.0 * S4->r - S3->r;
+ S2->r2 = 2.0 * S4->r2 - S3->r2;
+ S2->A = 2.0 * S4->A - S3->A;
+ S2->A2 = 2.0 * S4->A2 - S3->A2;
+
+ *S1 = *S4;
+ }
+ Random_Simis (goomInfo, F, F->Components + 3 * F->Nb_Simi, F->Nb_Simi);
+
+ Random_Simis (goomInfo, F, F->Components + 4 * F->Nb_Simi, F->Nb_Simi);
+
+ F->Count = 0;
+ } else
+ F->Count++;
+
+ F->Col++;
+
+ (*nbpt) = data->Cur_Pt;
+ return F->Buffer2;
+}
+
+
+/***************************************************************/
+
+static void
+release_ifs (IfsData * data)
+{
+ if (data->Root != NULL) {
+ free_ifs (data->Root);
+ (void) free ((void *) data->Root);
+ data->Root = (FRACTAL *) NULL;
+ }
+}
+
+#define RAND() goom_random(goomInfo->gRandom)
+
+static void
+ifs_update (PluginInfo * goomInfo, Pixel * data, Pixel * back, int increment,
+ IfsData * fx_data)
+{
+ static int couleur = 0xc0c0c0c0;
+ static int v[4] = { 2, 4, 3, 2 };
+ static int col[4] = { 2, 4, 3, 2 };
+
+#define MOD_MER 0
+#define MOD_FEU 1
+#define MOD_MERVER 2
+ static int mode = MOD_MERVER;
+ static int justChanged = 0;
+ static int cycle = 0;
+ int cycle10;
+
+ int nbpt;
+ IFSPoint *points;
+ int i;
+
+ int couleursl = couleur;
+ int width = goomInfo->screen.width;
+ int height = goomInfo->screen.height;
+
+ cycle++;
+ if (cycle >= 80)
+ cycle = 0;
+
+ if (cycle < 40)
+ cycle10 = cycle / 10;
+ else
+ cycle10 = 7 - cycle / 10;
+
+ {
+ unsigned char *tmp = (unsigned char *) &couleursl;
+
+ for (i = 0; i < 4; i++) {
+ *tmp = (*tmp) >> cycle10;
+ tmp++;
+ }
+ }
+
+ points = draw_ifs (goomInfo, &nbpt, fx_data);
+ nbpt--;
+
+#ifdef HAVE_MMX
+ movd_m2r (couleursl, mm1);
+ punpckldq_r2r (mm1, mm1);
+ for (i = 0; i < nbpt; i += increment) {
+ int x = points[i].x;
+ int y = points[i].y;
+
+ if ((x < width) && (y < height) && (x > 0) && (y > 0)) {
+ int pos = x + (y * width);
+
+ movd_m2r (back[pos], mm0);
+ paddusb_r2r (mm1, mm0);
+ movd_r2m (mm0, data[pos]);
+ }
+ }
+ emms (); /*__asm__ __volatile__ ("emms");*/
+#else
+ for (i = 0; i < nbpt; i += increment) {
+ int x = (int) points[i].x & 0x7fffffff;
+ int y = (int) points[i].y & 0x7fffffff;
+
+ if ((x < width) && (y < height)) {
+ int pos = x + (int) (y * width);
+ int tra = 0, i = 0;
+ unsigned char *bra = (unsigned char *) &back[pos];
+ unsigned char *dra = (unsigned char *) &data[pos];
+ unsigned char *cra = (unsigned char *) &couleursl;
+
+ for (; i < 4; i++) {
+ tra = *cra;
+ tra += *bra;
+ if (tra > 255)
+ tra = 255;
+ *dra = tra;
+ ++dra;
+ ++cra;
+ ++bra;
+ }
+ }
+ }
+#endif /*MMX*/
+ justChanged--;
+
+ col[ALPHA] = couleur >> (ALPHA * 8) & 0xff;
+ col[BLEU] = couleur >> (BLEU * 8) & 0xff;
+ col[VERT] = couleur >> (VERT * 8) & 0xff;
+ col[ROUGE] = couleur >> (ROUGE * 8) & 0xff;
+
+ if (mode == MOD_MER) {
+ col[BLEU] += v[BLEU];
+ if (col[BLEU] > 255) {
+ col[BLEU] = 255;
+ v[BLEU] = -(RAND () % 4) - 1;
+ }
+ if (col[BLEU] < 32) {
+ col[BLEU] = 32;
+ v[BLEU] = (RAND () % 4) + 1;
+ }
+
+ col[VERT] += v[VERT];
+ if (col[VERT] > 200) {
+ col[VERT] = 200;
+ v[VERT] = -(RAND () % 3) - 2;
+ }
+ if (col[VERT] > col[BLEU]) {
+ col[VERT] = col[BLEU];
+ v[VERT] = v[BLEU];
+ }
+ if (col[VERT] < 32) {
+ col[VERT] = 32;
+ v[VERT] = (RAND () % 3) + 2;
+ }
+
+ col[ROUGE] += v[ROUGE];
+ if (col[ROUGE] > 64) {
+ col[ROUGE] = 64;
+ v[ROUGE] = -(RAND () % 4) - 1;
+ }
+ if (col[ROUGE] < 0) {
+ col[ROUGE] = 0;
+ v[ROUGE] = (RAND () % 4) + 1;
+ }
+
+ col[ALPHA] += v[ALPHA];
+ if (col[ALPHA] > 0) {
+ col[ALPHA] = 0;
+ v[ALPHA] = -(RAND () % 4) - 1;
+ }
+ if (col[ALPHA] < 0) {
+ col[ALPHA] = 0;
+ v[ALPHA] = (RAND () % 4) + 1;
+ }
+
+ if (((col[VERT] > 32) && (col[ROUGE] < col[VERT] + 40)
+ && (col[VERT] < col[ROUGE] + 20) && (col[BLEU] < 64)
+ && (RAND () % 20 == 0)) && (justChanged < 0)) {
+ mode = RAND () % 3 ? MOD_FEU : MOD_MERVER;
+ justChanged = 250;
+ }
+ } else if (mode == MOD_MERVER) {
+ col[BLEU] += v[BLEU];
+ if (col[BLEU] > 128) {
+ col[BLEU] = 128;
+ v[BLEU] = -(RAND () % 4) - 1;
+ }
+ if (col[BLEU] < 16) {
+ col[BLEU] = 16;
+ v[BLEU] = (RAND () % 4) + 1;
+ }
+
+ col[VERT] += v[VERT];
+ if (col[VERT] > 200) {
+ col[VERT] = 200;
+ v[VERT] = -(RAND () % 3) - 2;
+ }
+ if (col[VERT] > col[ALPHA]) {
+ col[VERT] = col[ALPHA];
+ v[VERT] = v[ALPHA];
+ }
+ if (col[VERT] < 32) {
+ col[VERT] = 32;
+ v[VERT] = (RAND () % 3) + 2;
+ }
+
+ col[ROUGE] += v[ROUGE];
+ if (col[ROUGE] > 128) {
+ col[ROUGE] = 128;
+ v[ROUGE] = -(RAND () % 4) - 1;
+ }
+ if (col[ROUGE] < 0) {
+ col[ROUGE] = 0;
+ v[ROUGE] = (RAND () % 4) + 1;
+ }
+
+ col[ALPHA] += v[ALPHA];
+ if (col[ALPHA] > 255) {
+ col[ALPHA] = 255;
+ v[ALPHA] = -(RAND () % 4) - 1;
+ }
+ if (col[ALPHA] < 0) {
+ col[ALPHA] = 0;
+ v[ALPHA] = (RAND () % 4) + 1;
+ }
+
+ if (((col[VERT] > 32) && (col[ROUGE] < col[VERT] + 40)
+ && (col[VERT] < col[ROUGE] + 20) && (col[BLEU] < 64)
+ && (RAND () % 20 == 0)) && (justChanged < 0)) {
+ mode = RAND () % 3 ? MOD_FEU : MOD_MER;
+ justChanged = 250;
+ }
+ } else if (mode == MOD_FEU) {
+
+ col[BLEU] += v[BLEU];
+ if (col[BLEU] > 64) {
+ col[BLEU] = 64;
+ v[BLEU] = -(RAND () % 4) - 1;
+ }
+ if (col[BLEU] < 0) {
+ col[BLEU] = 0;
+ v[BLEU] = (RAND () % 4) + 1;
+ }
+
+ col[VERT] += v[VERT];
+ if (col[VERT] > 200) {
+ col[VERT] = 200;
+ v[VERT] = -(RAND () % 3) - 2;
+ }
+ if (col[VERT] > col[ROUGE] + 20) {
+ col[VERT] = col[ROUGE] + 20;
+ v[VERT] = -(RAND () % 3) - 2;
+ v[ROUGE] = (RAND () % 4) + 1;
+ v[BLEU] = (RAND () % 4) + 1;
+ }
+ if (col[VERT] < 0) {
+ col[VERT] = 0;
+ v[VERT] = (RAND () % 3) + 2;
+ }
+
+ col[ROUGE] += v[ROUGE];
+ if (col[ROUGE] > 255) {
+ col[ROUGE] = 255;
+ v[ROUGE] = -(RAND () % 4) - 1;
+ }
+ if (col[ROUGE] > col[VERT] + 40) {
+ col[ROUGE] = col[VERT] + 40;
+ v[ROUGE] = -(RAND () % 4) - 1;
+ }
+ if (col[ROUGE] < 0) {
+ col[ROUGE] = 0;
+ v[ROUGE] = (RAND () % 4) + 1;
+ }
+
+ col[ALPHA] += v[ALPHA];
+ if (col[ALPHA] > 0) {
+ col[ALPHA] = 0;
+ v[ALPHA] = -(RAND () % 4) - 1;
+ }
+ if (col[ALPHA] < 0) {
+ col[ALPHA] = 0;
+ v[ALPHA] = (RAND () % 4) + 1;
+ }
+
+ if (((col[ROUGE] < 64) && (col[VERT] > 32) && (col[VERT] < col[BLEU])
+ && (col[BLEU] > 32)
+ && (RAND () % 20 == 0)) && (justChanged < 0)) {
+ mode = RAND () % 2 ? MOD_MER : MOD_MERVER;
+ justChanged = 250;
+ }
+ }
+
+ couleur = (col[ALPHA] << (ALPHA * 8))
+ | (col[BLEU] << (BLEU * 8))
+ | (col[VERT] << (VERT * 8))
+ | (col[ROUGE] << (ROUGE * 8));
+}
+
+/** VISUAL_FX WRAPPER FOR IFS */
+
+static void
+ifs_vfx_apply (VisualFX * _this, Pixel * src, Pixel * dest,
+ PluginInfo * goomInfo)
+{
+
+ IfsData *data = (IfsData *) _this->fx_data;
+
+ if (!data->initalized) {
+ data->initalized = 1;
+ init_ifs (goomInfo, data);
+ }
+ ifs_update (goomInfo, dest, src, goomInfo->update.ifs_incr, data);
+ /*TODO: trouver meilleur soluce pour increment (mettre le code de gestion de l'ifs dans ce fichier: ifs_vfx_apply) */
+}
+
+static void
+ifs_vfx_init (VisualFX * _this, PluginInfo * info)
+{
+
+ IfsData *data = (IfsData *) malloc (sizeof (IfsData));
+
+ data->Root = (FRACTAL *) NULL;
+ data->initalized = 0;
+ _this->fx_data = data;
+}
+
+static void
+ifs_vfx_free (VisualFX * _this)
+{
+ IfsData *data = (IfsData *) _this->fx_data;
+
+ release_ifs (data);
+ free (data);
+}
+
+VisualFX
+ifs_visualfx_create (void)
+{
+ VisualFX vfx;
+
+ vfx.init = ifs_vfx_init;
+ vfx.free = ifs_vfx_free;
+ vfx.apply = ifs_vfx_apply;
+ return vfx;
+}
generated by cgit (git 2.34.1) at 2024-06-22 02:43:10 +0000