goom_core.c

来自「linux下的MPEG1」· C语言 代码 · 共 894 行 · 第 1/3 页

        zoomFilterFastRGB (goomInfo, goomInfo->p1, goomInfo->p2, pzfd, goomInfo->screen.width, goomInfo->screen.height,
                           goomInfo->update.switchIncr, goomInfo->update.switchMult);
        
        /*
         * Affichage tentacule
         */

        goomInfo->tentacles_fx.apply(&goomInfo->tentacles_fx, goomInfo->p1, goomInfo->p2, goomInfo);
        goomInfo->star_fx.apply (&goomInfo->star_fx,goomInfo->p2,goomInfo->p1,goomInfo);
 
        /*
         * Affichage de texte
         */
        {
            /*char title[1024];*/
            char text[64];
            
            /*
             * Le message
             */
            update_message (goomInfo, message);
            
            if (fps > 0) {
                sprintf (text, "%2.0f fps", fps);
                goom_draw_text (goomInfo->p1,goomInfo->screen.width,goomInfo->screen.height,
                                10, 24, text, 1, 0);
            }
            
            /*
             * Le titre
             */
            if (songTitle != NULL) {
                strncpy (goomInfo->update.titleText, songTitle, 1023);
                goomInfo->update.titleText[1023]=0;
                goomInfo->update.timeOfTitleDisplay = 200;
            }
            
            if (goomInfo->update.timeOfTitleDisplay) {
                goom_draw_text (goomInfo->p1,goomInfo->screen.width,goomInfo->screen.height,
                                goomInfo->screen.width / 2, goomInfo->screen.height / 2 + 7, goomInfo->update.titleText,
                                ((float) (190 - goomInfo->update.timeOfTitleDisplay) / 10.0f), 1);
                goomInfo->update.timeOfTitleDisplay--;
                if (goomInfo->update.timeOfTitleDisplay < 4)
                    goom_draw_text (goomInfo->p2,goomInfo->screen.width,goomInfo->screen.height,
                                    goomInfo->screen.width / 2, goomInfo->screen.height / 2 + 7, goomInfo->update.titleText,
                                    ((float) (190 - goomInfo->update.timeOfTitleDisplay) / 10.0f), 1);
            }
        }
        
        /*
         * Gestion du Scope
         */
        
        /*
         * arret demande
         */
        if ((goomInfo->update.stop_lines & 0xf000)||(!goomInfo->curGState->drawScope)) {
            float   param1, param2, amplitude;
            int     couleur;
            int     mode;
            
            choose_a_goom_line (goomInfo, &param1, &param2, &couleur, &mode, &amplitude,1);
            couleur = GML_BLACK;
            
            goom_lines_switch_to (goomInfo->gmline1, mode, param1, amplitude, couleur);
            goom_lines_switch_to (goomInfo->gmline2, mode, param2, amplitude, couleur);
            goomInfo->update.stop_lines &= 0x0fff;
        }
        
        /*
         * arret aleatore.. changement de mode de ligne..
         */
        if (goomInfo->update.lineMode != goomInfo->update.drawLinesDuration) {
            goomInfo->update.lineMode--;
            if (goomInfo->update.lineMode == -1)
                goomInfo->update.lineMode = 0;
        }
        else
            if ((goomInfo->cycle%80==0)&&(goom_irand(goomInfo->gRandom,5)==0)&&goomInfo->update.lineMode)
                goomInfo->update.lineMode--;
        
        if ((goomInfo->cycle % 120 == 0)
            && (goom_irand(goomInfo->gRandom,4) == 0)
            && (goomInfo->curGState->drawScope)) {
            if (goomInfo->update.lineMode == 0)
                goomInfo->update.lineMode = goomInfo->update.drawLinesDuration;
            else if (goomInfo->update.lineMode == goomInfo->update.drawLinesDuration) {
                float   param1, param2, amplitude;
                int     couleur1,couleur2;
                int     mode;
                
                goomInfo->update.lineMode--;
                choose_a_goom_line (goomInfo, &param1, &param2, &couleur1,
                                    &mode, &amplitude,goomInfo->update.stop_lines);
                
                couleur2 = 5-couleur1;
                if (goomInfo->update.stop_lines) {
                    goomInfo->update.stop_lines--;
                    if (goom_irand(goomInfo->gRandom,2))
                        couleur2=couleur1 = GML_BLACK;
                }
                
                goom_lines_switch_to (goomInfo->gmline1, mode, param1, amplitude, couleur1);
                goom_lines_switch_to (goomInfo->gmline2, mode, param2, amplitude, couleur2);
            }
        }
        
        /*
         * si on est dans un goom : afficher les lignes...
         */
        if ((goomInfo->update.lineMode != 0) || (goomInfo->sound.timeSinceLastGoom < 5)) {
            goomInfo->gmline2->power = goomInfo->gmline1->power;
            
            goom_lines_draw (goomInfo, goomInfo->gmline1, data[0], goomInfo->p2);
            goom_lines_draw (goomInfo, goomInfo->gmline2, data[1], goomInfo->p2);
            
            if (((goomInfo->cycle % 121) == 9) && (goom_irand(goomInfo->gRandom,3) == 1)
                && ((goomInfo->update.lineMode == 0) || (goomInfo->update.lineMode == goomInfo->update.drawLinesDuration))) {
                float   param1, param2, amplitude;
                int     couleur1,couleur2;
                int     mode;
                
                choose_a_goom_line (goomInfo, &param1, &param2, &couleur1,
                                    &mode, &amplitude, goomInfo->update.stop_lines);
                couleur2 = 5-couleur1;
                
                if (goomInfo->update.stop_lines) {
                    goomInfo->update.stop_lines--;
                    if (goom_irand(goomInfo->gRandom,2))
                        couleur2=couleur1 = GML_BLACK;
                }
                goom_lines_switch_to (goomInfo->gmline1, mode, param1, amplitude, couleur1);
                goom_lines_switch_to (goomInfo->gmline2, mode, param2, amplitude, couleur2);
            }
        }
        
        return_val = goomInfo->p1;
        tmp = goomInfo->p1;
        goomInfo->p1 = goomInfo->p2;
        goomInfo->p2 = tmp;
        
        /* affichage et swappage des buffers.. */
        goomInfo->cycle++;
        
        /* xine: no convolve_fx */
        /*
        goomInfo->convolve_fx.apply(&goomInfo->convolve_fx,return_val,goomInfo->outputBuf,goomInfo);
        */
        xine_fast_memcpy(goomInfo->outputBuf, return_val, goomInfo->screen.size * sizeof(Pixel));

        
        return (guint32*)goomInfo->outputBuf;
}

/****************************************
*                CLOSE                 *
****************************************/
void goom_close (PluginInfo *goomInfo)
{
    if (goomInfo->pixel != NULL)
        free (goomInfo->pixel);
    if (goomInfo->back != NULL)
        free (goomInfo->back);
    if (goomInfo->conv != NULL)
        free (goomInfo->conv);
    
    goomInfo->pixel = goomInfo->back = NULL;
    goomInfo->conv = NULL;
    goom_random_free(goomInfo->gRandom);
    goom_lines_free (&goomInfo->gmline1);
    goom_lines_free (&goomInfo->gmline2);
    
    /* release_ifs (); */
    goomInfo->ifs_fx.free(&goomInfo->ifs_fx);
    goomInfo->convolve_fx.free(&goomInfo->convolve_fx);
    goomInfo->star_fx.free(&goomInfo->star_fx);
    goomInfo->tentacles_fx.free(&goomInfo->tentacles_fx);
    goomInfo->zoomFilter_fx.free(&goomInfo->zoomFilter_fx);
    
    free(goomInfo);
}


/* *** */
void
choose_a_goom_line (PluginInfo *goomInfo, float *param1, float *param2, int *couleur, int *mode,
                    float *amplitude, int isfar)
{
    *mode = goom_irand(goomInfo->gRandom,3);
    *amplitude = 1.0f;
    switch (*mode) {
        case GML_CIRCLE:
            if (isfar) {
                *param1 = *param2 = 0.47f;
                *amplitude = 0.8f;
                break;
            }
            if (goom_irand(goomInfo->gRandom,3) == 0) {
                *param1 = *param2 = 0;
                *amplitude = 3.0f;
            }
            else if (goom_irand(goomInfo->gRandom,2)) {
                *param1 = 0.40f * goomInfo->screen.height;
                *param2 = 0.22f * goomInfo->screen.height;
            }
            else {
                *param1 = *param2 = goomInfo->screen.height * 0.35;
            }
            break;
        case GML_HLINE:
            if (goom_irand(goomInfo->gRandom,4) || isfar) {
                *param1 = goomInfo->screen.height / 7;
                *param2 = 6.0f * goomInfo->screen.height / 7.0f;
            }
            else {
                *param1 = *param2 = goomInfo->screen.height / 2.0f;
                *amplitude = 2.0f;
            }
            break;
        case GML_VLINE:
            if (goom_irand(goomInfo->gRandom,3) || isfar) {
                *param1 = goomInfo->screen.width / 7.0f;
                *param2 = 6.0f * goomInfo->screen.width / 7.0f;
            }
            else {
                *param1 = *param2 = goomInfo->screen.width / 2.0f;
                *amplitude = 1.5f;
            }
            break;
    }
    
    *couleur = goom_irand(goomInfo->gRandom,6);
}

#define ECART_VARIATION 1.5
#define POS_VARIATION 3.0
#define SCROLLING_SPEED 80

/*
 * Met a jour l'affichage du message defilant
 */
void update_message (PluginInfo *goomInfo, char *message) {
    
    int fin = 0;
    
    if (message) {
        int i=1,j=0;
        sprintf (goomInfo->update_message.message, "%s", message);
        for (j=0;goomInfo->update_message.message[j];j++)
            if (goomInfo->update_message.message[j]=='\n')
                i++;
        goomInfo->update_message.numberOfLinesInMessage = i;
        goomInfo->update_message.affiche = goomInfo->screen.height + goomInfo->update_message.numberOfLinesInMessage * 25 + 105;
        goomInfo->update_message.longueur = strlen(goomInfo->update_message.message);
    }
    if (goomInfo->update_message.affiche) {
        int i = 0;
        char *msg = malloc(goomInfo->update_message.longueur + 1);
        char *ptr = msg;
        int pos;
        float ecart;
        message = msg;
        sprintf (msg, "%s", goomInfo->update_message.message);
        
        while (!fin) {
            while (1) {
                if (*ptr == 0) {
                    fin = 1;
                    break;
                }
                if (*ptr == '\n') {
                    *ptr = 0;
                    break;
                }
                ++ptr;
            }
            pos = goomInfo->update_message.affiche - (goomInfo->update_message.numberOfLinesInMessage - i)*25;
            pos += POS_VARIATION * (cos((double)pos / 20.0));
            pos -= SCROLLING_SPEED;
            ecart = (ECART_VARIATION * sin((double)pos / 20.0));
            if ((fin) && (2 * pos < (int)goomInfo->screen.height))
                pos = (int)goomInfo->screen.height / 2;
            pos += 7;
            
            goom_draw_text(goomInfo->p1,goomInfo->screen.width,goomInfo->screen.height,
                           goomInfo->screen.width/2, pos,
                           message,
                           ecart,
                           1);
            message = ++ptr;
            i++;
        }
        goomInfo->update_message.affiche --;
        free (msg);
    }
}