mirror of
https://github.com/game-stop/veejay.git
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291 lines
7.5 KiB
C
291 lines
7.5 KiB
C
#include <stdlib.h>
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#include "v3d.h"
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#include "surf3d.h"
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#include "goom_tools.h"
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#include "goom_config.h"
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#include "goom_plugin_info.h"
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#include "tentacle3d.h"
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#define D 256.0f
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#define nbgrid 6
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#define definitionx 15
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#define definitionz 45
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typedef struct _TENTACLE_FX_DATA {
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PluginParam enabled_bp;
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PluginParameters params;
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float cycle;
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grid3d *grille[nbgrid];
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float *vals;
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#define NB_TENTACLE_COLORS 4
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int colors[NB_TENTACLE_COLORS];
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int col;
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int dstcol;
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float lig;
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float ligs;
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/* statics from pretty_move */
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float distt;
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float distt2;
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float rot; /* entre 0 et 2 * M_PI */
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int happens;
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int rotation;
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int lock;
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} TentacleFXData;
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static void tentacle_new (TentacleFXData *data);
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static void tentacle_update(PluginInfo *goomInfo, Pixel *buf, Pixel *back, int W, int H,
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short[2][512], float, int drawit, TentacleFXData *data);
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static void tentacle_free (TentacleFXData *data);
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/*
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* VisualFX wrapper for the tentacles
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*/
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static void tentacle_fx_init(VisualFX *_this, PluginInfo *info) {
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TentacleFXData *data = (TentacleFXData*)malloc(sizeof(TentacleFXData));
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data->enabled_bp = secure_b_param("Enabled", 1);
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data->params = plugin_parameters ("3D Tentacles", 1);
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data->params.params[0] = &data->enabled_bp;
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data->cycle = 0.0f;
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data->col = (0x28<<(ROUGE*8))|(0x2c<<(VERT*8))|(0x5f<<(BLEU*8));
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data->dstcol = 0;
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data->lig = 1.15f;
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data->ligs = 0.1f;
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data->distt = 10.0f;
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data->distt2 = 0.0f;
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data->rot = 0.0f; /* entre 0 et 2 * M_PI */
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data->happens = 0;
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data->rotation = 0;
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data->lock = 0;
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data->colors[0] = (0x18<<(ROUGE*8))|(0x4c<<(VERT*8))|(0x2f<<(BLEU*8));
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data->colors[1] = (0x48<<(ROUGE*8))|(0x2c<<(VERT*8))|(0x6f<<(BLEU*8));
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data->colors[2] = (0x58<<(ROUGE*8))|(0x3c<<(VERT*8))|(0x0f<<(BLEU*8));
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data->colors[3] = (0x87<<(ROUGE*8))|(0x55<<(VERT*8))|(0x74<<(BLEU*8));
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tentacle_new(data);
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_this->params = &data->params;
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_this->fx_data = (void*)data;
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}
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static void tentacle_fx_apply(VisualFX *_this, Pixel *src, Pixel *dest, PluginInfo *goomInfo)
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{
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TentacleFXData *data = (TentacleFXData*)_this->fx_data;
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if (BVAL(data->enabled_bp)) {
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tentacle_update(goomInfo, dest, src, goomInfo->screen.width,
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goomInfo->screen.height, goomInfo->sound.samples,
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(float)goomInfo->sound.accelvar,
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goomInfo->curGState->drawTentacle, data);
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}
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}
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static void tentacle_fx_free(VisualFX *_this) {
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tentacle_free((TentacleFXData*)_this->fx_data);
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free(_this->fx_data);
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}
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VisualFX tentacle_fx_create(void) {
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VisualFX fx;
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fx.init = tentacle_fx_init;
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fx.apply = tentacle_fx_apply;
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fx.free = tentacle_fx_free;
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return fx;
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}
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/* ----- */
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static void tentacle_free (TentacleFXData *data) {
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/* TODO : un vrai FREE GRID!! */
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free (data->vals);
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}
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static void tentacle_new (TentacleFXData *data) {
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int tmp;
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v3d center = {0,-17.0,0};
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data->vals = (float*)malloc ((definitionx+20)*sizeof(float));
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for (tmp=0;tmp<nbgrid;tmp++) {
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int x,z;
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z = 45 + rand() % 30;
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x = 85 + rand() % 5;
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center.z = z;
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data->grille[tmp] = grid3d_new (x, definitionx, z, definitionz + rand() % 10, center);
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center.y += 8;
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}
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}
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static inline unsigned char lighten (unsigned char value, float power)
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{
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int val = value;
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float t = (float) val * log10(power) / 2.0;
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if (t > 0) {
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val = (int) t; /* (32.0f * log (t)); */
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if (val > 255)
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val = 255;
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if (val < 0)
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val = 0;
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return val;
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}
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else {
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return 0;
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}
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}
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static void lightencolor (int *col, float power)
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{
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unsigned char *color;
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color = (unsigned char *) col;
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*color = lighten (*color, power);
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color++;
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*color = lighten (*color, power);
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color++;
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*color = lighten (*color, power);
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color++;
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*color = lighten (*color, power);
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}
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/* retourne x>>s , en testant le signe de x */
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#define ShiftRight(_x,_s) ((_x<0) ? -(-_x>>_s) : (_x>>_s))
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static int evolutecolor (unsigned int src,unsigned int dest,
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unsigned int mask, unsigned int incr) {
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int color = src & (~mask);
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src &= mask;
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dest &= mask;
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if ((src!=mask)
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&&(src<dest))
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src += incr;
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if (src>dest)
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src -= incr;
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return (src&mask)|color;
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}
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static void pretty_move (PluginInfo *goomInfo, float cycle, float *dist, float *dist2, float *rotangle, TentacleFXData *fx_data) {
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float tmp;
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/* many magic numbers here... I don't really like that. */
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if (fx_data->happens)
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fx_data->happens -= 1;
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else if (fx_data->lock == 0) {
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fx_data->happens = goom_irand(goomInfo->gRandom,200)?0:100+goom_irand(goomInfo->gRandom,60);
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fx_data->lock = fx_data->happens * 3 / 2;
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}
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else fx_data->lock --;
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tmp = fx_data->happens?8.0f:0;
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*dist2 = fx_data->distt2 = (tmp + 15.0f*fx_data->distt2)/16.0f;
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tmp = 30+D-90.0f*(1.0f+sin(cycle*19/20));
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if (fx_data->happens)
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tmp *= 0.6f;
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*dist = fx_data->distt = (tmp + 3.0f*fx_data->distt)/4.0f;
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if (!fx_data->happens){
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tmp = M_PI*sin(cycle)/32+3*M_PI/2;
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}
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else {
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fx_data->rotation = goom_irand(goomInfo->gRandom,500)?fx_data->rotation:goom_irand(goomInfo->gRandom,2);
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if (fx_data->rotation)
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cycle *= 2.0f*M_PI;
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else
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cycle *= -1.0f*M_PI;
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tmp = cycle - (M_PI*2.0) * floor(cycle/(M_PI*2.0));
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}
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if (abs(tmp-fx_data->rot) > abs(tmp-(fx_data->rot+2.0*M_PI))) {
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fx_data->rot = (tmp + 15.0f*(fx_data->rot+2*M_PI)) / 16.0f;
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if (fx_data->rot>2.0*M_PI)
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fx_data->rot -= 2.0*M_PI;
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*rotangle = fx_data->rot;
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}
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else if (abs(tmp-fx_data->rot) > abs(tmp-(fx_data->rot-2.0*M_PI))) {
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fx_data->rot = (tmp + 15.0f*(fx_data->rot-2.0*M_PI)) / 16.0f;
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if (fx_data->rot<0.0f)
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fx_data->rot += 2.0*M_PI;
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*rotangle = fx_data->rot;
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}
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else
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*rotangle = fx_data->rot = (tmp + 15.0f*fx_data->rot) / 16.0f;
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}
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static void tentacle_update(PluginInfo *goomInfo, Pixel *buf, Pixel *back, int W, int H,
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short data[2][512], float rapport, int drawit, TentacleFXData *fx_data) {
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int tmp;
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int tmp2;
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int color;
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int colorlow;
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float dist,dist2,rotangle;
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if ((!drawit) && (fx_data->ligs>0.0f))
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fx_data->ligs = -fx_data->ligs;
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fx_data->lig += fx_data->ligs;
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if (fx_data->lig > 1.01f) {
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if ((fx_data->lig>10.0f) | (fx_data->lig<1.1f)) fx_data->ligs = -fx_data->ligs;
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if ((fx_data->lig<6.3f)&&(goom_irand(goomInfo->gRandom,30)==0))
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fx_data->dstcol=goom_irand(goomInfo->gRandom,NB_TENTACLE_COLORS);
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fx_data->col = evolutecolor(fx_data->col,fx_data->colors[fx_data->dstcol],0xff,0x01);
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fx_data->col = evolutecolor(fx_data->col,fx_data->colors[fx_data->dstcol],0xff00,0x0100);
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fx_data->col = evolutecolor(fx_data->col,fx_data->colors[fx_data->dstcol],0xff0000,0x010000);
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fx_data->col = evolutecolor(fx_data->col,fx_data->colors[fx_data->dstcol],0xff000000,0x01000000);
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color = fx_data->col;
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colorlow = fx_data->col;
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lightencolor(&color,fx_data->lig * 2.0f + 2.0f);
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lightencolor(&colorlow,(fx_data->lig/3.0f)+0.67f);
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rapport = 1.0f + 2.0f * (rapport - 1.0f);
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rapport *= 1.2f;
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if (rapport > 1.12f)
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rapport = 1.12f;
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pretty_move (goomInfo, fx_data->cycle, &dist, &dist2, &rotangle, fx_data);
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for (tmp=0;tmp<nbgrid;tmp++) {
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for (tmp2=0;tmp2<definitionx;tmp2++) {
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float val = (float)(ShiftRight(data[0][goom_irand(goomInfo->gRandom,511)],10)) * rapport;
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fx_data->vals[tmp2] = val;
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}
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grid3d_update (fx_data->grille[tmp], rotangle, fx_data->vals, dist2);
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}
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fx_data->cycle+=0.01f;
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for (tmp=0;tmp<nbgrid;tmp++)
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grid3d_draw (goomInfo, fx_data->grille[tmp],color,colorlow,dist,buf,back,W,H);
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}
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else {
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fx_data->lig = 1.05f;
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if (fx_data->ligs < 0.0f)
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fx_data->ligs = -fx_data->ligs;
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pretty_move (goomInfo, fx_data->cycle, &dist, &dist2, &rotangle, fx_data);
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fx_data->cycle+=0.1f;
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if (fx_data->cycle > 1000)
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fx_data->cycle = 0;
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}
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}
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