apps/codecs/lib/tlsf/src/target.h


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#ifndef _TARGET_H_
#define _TARGET_H_

#include <pthread.h>

#define TLSF_MLOCK_T            pthread_mutex_t
#define TLSF_CREATE_LOCK(l)     pthread_mutex_init (l, NULL)
#define TLSF_DESTROY_LOCK(l)    pthread_mutex_destroy(l)
#define TLSF_ACQUIRE_LOCK(l)    pthread_mutex_lock(l)
#define TLSF_RELEASE_LOCK(l)    pthread_mutex_unlock(l)

#endif
/***************************************************************************
*             __________               __   ___.
*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
*                     \/            \/     \/    \/            \/
* $Id$
*
* Copyright (C) 2005 Kevin Ferrare
*
* Fire demo plugin
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/

#include "plugin.h"
#include "lib/helper.h"

#include "lib/pluginlib_actions.h"
#include "lib/fixedpoint.h"

#ifndef HAVE_LCD_COLOR
#include "lib/grey.h"
#endif

#if (LCD_WIDTH == 112) && (LCD_HEIGHT == 64)
/* Archos has not enough plugin RAM for full-width fire :( */
#define FIRE_WIDTH 106
#define FIRE_XPOS 3
#else
#define FIRE_WIDTH LCD_WIDTH
#define FIRE_XPOS 0
#endif

#ifndef HAVE_LCD_COLOR
GREY_INFO_STRUCT
        static unsigned char draw_buffer[FIRE_WIDTH];

#endif

/* Key assignement */
const struct button_mapping* plugin_contexts[]= {
    pla_main_ctx,
#if defined(HAVE_REMOTE_LCD)
    pla_remote_ctx,
#endif
};

#define FIRE_QUIT                   PLA_CANCEL
#define FIRE_SWITCH_FLAMES_TYPE     PLA_LEFT
#define FIRE_SWITCH_FLAMES_MOVING   PLA_RIGHT

#ifdef HAVE_SCROLLWHEEL
#define FIRE_INCREASE_MULT          PLA_SCROLL_FWD
#define FIRE_INCREASE_MULT_REP      PLA_SCROLL_FWD_REPEAT
#define FIRE_DECREASE_MULT          PLA_SCROLL_BACK
#define FIRE_DECREASE_MULT_REP      PLA_SCROLL_BACK_REPEAT
#else
#define FIRE_INCREASE_MULT          PLA_UP
#define FIRE_INCREASE_MULT_REP      PLA_UP_REPEAT
#define FIRE_DECREASE_MULT          PLA_DOWN
#define FIRE_DECREASE_MULT_REP      PLA_DOWN_REPEAT
#endif

#define MIN_FLAME_VALUE 0
#define COOL_MAX (440/LCD_HEIGHT+2)

#ifndef HAVE_LCD_COLOR
static unsigned char palette[256];

static void color_palette_init(unsigned char* palette)
{
    int i;
    for(i=0;i<=160;i++)//palette[i]=(3/2)*i
        palette[i]=(i*3)/2;

    /* 'regular' fire doesn't exceed this value */
    for(;i<=255;i++)//palette[i]=(3/20)*i+216
        palette[i]=(i*3+20*217)/20;
}
#else

static fb_data palette[256];

/*
 * Color palette generation algorithm taken from
 * the "The Demo Effects Collection" GPL project
 * Copyright (C) 2002 W.P. van Paassen
 */
static void color_palette_init(fb_data* palette)
{
    int i;
    for (i = 0; i < 32; i++){
        /* black to blue, 32 values*/
        palette[i]=LCD_RGBPACK(0, 0, 2*i);

        /* blue to red, 32 values*/
        palette[i +  32]=LCD_RGBPACK(8*i, 0, 64 - 2*i);

        /* red to yellow, 32 values*/
        palette[i +  64]=LCD_RGBPACK(255, 8*i, 0);

        /* yellow to white, 162 values */
        palette[i +  96]=LCD_RGBPACK(255, 255,   0 + 4*i);
        palette[i + 128]=LCD_RGBPACK(255, 255,  64 + 4*i);
        palette[i + 160]=LCD_RGBPACK(255, 255, 128 + 4*i);
        palette[i + 192]=LCD_RGBPACK(255, 255, 192 + i);
        palette[i + 224]=LCD_RGBPACK(255, 255, 224 + i);
    }
#if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
    rb->lcd_pal256_update_pal(palette);
#endif
}

#endif

static void tab_init_rand(unsigned char *tab, unsigned int tab_size,
                          int rand_max)
{
    unsigned char *end = tab + tab_size;

    while(tab < end)
        *tab++ = (unsigned char)rb->rand() % rand_max;
}

struct fire {
    unsigned char fire[LCD_HEIGHT+3][FIRE_WIDTH];
    unsigned char cooling_map[LCD_HEIGHT][FIRE_WIDTH];
    int flames_type;
    bool moving;
    unsigned int mult;
};
/* makes the instance a global variable since it's too big to fit on the target's stack */
static struct fire fire;

static inline void fire_convolve(struct fire* fire)
{
    unsigned int pixel_value;
    unsigned int cooling_value;
    unsigned char *ptr, *end, *cool;
    unsigned int mult=fire->mult;

    rb->yield();
    /* Convolve the pixels and handle cooling (to add nice shapes effects later) */
    cool = &fire->cooling_map[0][0];
    ptr = &fire->fire[0][0];
    end = ptr + LCD_HEIGHT*FIRE_WIDTH;

    switch (fire->flames_type){
        case 0:
            do{
                pixel_value = ptr[FIRE_WIDTH-1]  /* fire[y+1][x-1] */
                        + ptr[2*FIRE_WIDTH]  /* fire[y+2][x] */
                        + ptr[FIRE_WIDTH+1]  /* fire[y+1][x+1] */
                        + ptr[3*FIRE_WIDTH]; /* fire[y+3][x] */
                pixel_value = FMULU(pixel_value, mult) >> 10;

                cooling_value = *cool++;