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/***************************************************************************
*             __________               __   ___.
*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
*                     \/            \/     \/    \/            \/
* $Id$
*
* Copyright (C) 2002 Damien Teney
* modified to use int instead of float math by Andreas Zwirtes
* heavily extended by Jens Arnold
*
* 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 "fixedpoint.h"
#include "lib/pluginlib_exit.h"
#if LCD_DEPTH > 1
#include "lib/mylcd.h" /* MYLCD_CFG_RB_XLCD or MYLCD_CFG_PGFX */
#include "lib/grey.h"
#else
#include "lib/grey.h"
#include "lib/mylcd.h" /* MYLCD_CFG_GREYLIB or MYLCD_CFG_PGFX */
#endif
#include "lib/xlcd.h"

/* Loops that the values are displayed */
#define DISP_TIME 30

/* variable button definitions */
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
      (CONFIG_KEYPAD == IRIVER_H300_PAD)
#define CUBE_QUIT          BUTTON_OFF
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MODE
#define CUBE_PAUSE         BUTTON_ON
#define CUBE_HIGHSPEED     BUTTON_SELECT

#define CUBE_RC_QUIT       BUTTON_RC_STOP

#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
      (CONFIG_KEYPAD == IPOD_3G_PAD) || \
      (CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define CUBE_QUIT          (BUTTON_SELECT | BUTTON_MENU)
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_SCROLL_FWD
#define CUBE_DEC           BUTTON_SCROLL_BACK
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED_PRE BUTTON_SELECT
#define CUBE_HIGHSPEED     (BUTTON_SELECT | BUTTON_REL)

#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
#define CUBE_QUIT          BUTTON_PLAY
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MODE
#define CUBE_PAUSE         BUTTON_SELECT
#define CUBE_HIGHSPEED     BUTTON_EQ

#elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_REC
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_SELECT

#elif (CONFIG_KEYPAD == GIGABEAT_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_SELECT
#define CUBE_HIGHSPEED     BUTTON_A

#elif (CONFIG_KEYPAD == SANSA_E200_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_SCROLL_FWD
#define CUBE_DEC           BUTTON_SCROLL_BACK
#define CUBE_MODE          BUTTON_DOWN
#define CUBE_PAUSE         BUTTON_UP
#define CUBE_HIGHSPEED     BUTTON_SELECT

#elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
#define CUBE_QUIT          (BUTTON_HOME|BUTTON_REPEAT)
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_SCROLL_FWD
#define CUBE_DEC           BUTTON_SCROLL_BACK
#define CUBE_MODE          BUTTON_DOWN
#define CUBE_PAUSE         BUTTON_UP
#define CUBE_HIGHSPEED     BUTTON_SELECT

#elif (CONFIG_KEYPAD == SANSA_C200_PAD) || \
(CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
(CONFIG_KEYPAD == SANSA_M200_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_DOWN
#define CUBE_PAUSE         BUTTON_UP
#define CUBE_HIGHSPEED     BUTTON_SELECT


#elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_SCROLL_UP
#define CUBE_DEC           BUTTON_SCROLL_DOWN
#define CUBE_MODE          BUTTON_REW
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_FF

#elif CONFIG_KEYPAD == MROBE500_PAD
#define CUBE_QUIT          BUTTON_POWER

#elif CONFIG_KEYPAD == GIGABEAT_S_PAD
#define CUBE_QUIT          BUTTON_BACK
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_SELECT

#elif (CONFIG_KEYPAD == MROBE100_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_SELECT

#elif (CONFIG_KEYPAD == IAUDIO_M3_PAD)
#define CUBE_QUIT          BUTTON_RC_REC
#define CUBE_NEXT          BUTTON_RC_FF
#define CUBE_PREV          BUTTON_RC_REW
#define CUBE_INC           BUTTON_RC_VOL_UP
#define CUBE_DEC           BUTTON_RC_VOL_DOWN
#define CUBE_MODE          BUTTON_RC_MODE
#define CUBE_PAUSE         BUTTON_RC_PLAY
#define CUBE_HIGHSPEED     BUTTON_RC_MENU

#elif CONFIG_KEYPAD == COWON_D2_PAD
#define CUBE_QUIT          BUTTON_POWER

#elif (CONFIG_KEYPAD == IAUDIO67_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_VOLUP
#define CUBE_DEC           BUTTON_VOLDOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_STOP

#elif CONFIG_KEYPAD == CREATIVEZVM_PAD
#define CUBE_QUIT          BUTTON_BACK
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_SELECT

#elif CONFIG_KEYPAD == CREATIVE_ZENXFI3_PAD
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_UP
#define CUBE_PREV          BUTTON_DOWN
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         (BUTTON_PLAY|BUTTON_REL)
#define CUBE_HIGHSPEED     BUTTON_BACK

#elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_SELECT
#define CUBE_HIGHSPEED     BUTTON_VIEW

#elif CONFIG_KEYPAD == PHILIPS_HDD6330_PAD
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_RIGHT

#elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_RIGHT

#elif CONFIG_KEYPAD == ONDAVX747_PAD
#define CUBE_QUIT          BUTTON_POWER
#elif CONFIG_KEYPAD == ONDAVX777_PAD
#define CUBE_QUIT          BUTTON_POWER

#elif (CONFIG_KEYPAD == SAMSUNG_YH820_PAD) || \
      (CONFIG_KEYPAD == SAMSUNG_YH92X_PAD)
#define CUBE_QUIT          BUTTON_REW
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          (BUTTON_FFWD|BUTTON_REL)
#define CUBE_MODE_PRE      BUTTON_FFWD
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     (BUTTON_FFWD|BUTTON_REPEAT)
#define CUBE_HIGHSPEED_PRE BUTTON_FFWD

#elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
#define CUBE_QUIT          BUTTON_REC
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_OK

#elif CONFIG_KEYPAD == MPIO_HD200_PAD
#define CUBE_QUIT          (BUTTON_REC | BUTTON_PLAY)
#define CUBE_NEXT          BUTTON_FF
#define CUBE_PREV          BUTTON_REW
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_REC
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_FUNC

#elif CONFIG_KEYPAD == MPIO_HD300_PAD
#define CUBE_QUIT          (BUTTON_MENU | BUTTON_REPEAT)
#define CUBE_NEXT          BUTTON_FF
#define CUBE_PREV          BUTTON_REW
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_PLAY
#define CUBE_HIGHSPEED     BUTTON_ENTER

#elif CONFIG_KEYPAD == SANSA_FUZEPLUS_PAD
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_SELECT
#define CUBE_PAUSE         BUTTON_PLAYPAUSE
#define CUBE_HIGHSPEED     BUTTON_BACK

#elif CONFIG_KEYPAD == SANSA_CONNECT_PAD
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_SELECT
#define CUBE_PAUSE         BUTTON_DOWN
#define CUBE_HIGHSPEED     BUTTON_LEFT

#elif (CONFIG_KEYPAD == SAMSUNG_YPR0_PAD)
#define CUBE_QUIT          BUTTON_BACK
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_MENU
#define CUBE_PAUSE         BUTTON_USER
#define CUBE_HIGHSPEED     BUTTON_SELECT

#elif (CONFIG_KEYPAD == HM60X_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          (BUTTON_SELECT|BUTTON_POWER)
#define CUBE_PAUSE         BUTTON_SELECT
#define CUBE_HIGHSPEED     (BUTTON_UP|BUTTON_POWER)

#elif (CONFIG_KEYPAD == HM801_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_UP
#define CUBE_DEC           BUTTON_DOWN
#define CUBE_MODE          BUTTON_PREV
#define CUBE_PAUSE         BUTTON_SELECT
#define CUBE_HIGHSPEED     BUTTON_NEXT

#elif (CONFIG_KEYPAD == SONY_NWZ_PAD)
#define CUBE_QUIT        BUTTON_BACK
#define CUBE_NEXT        BUTTON_RIGHT
#define CUBE_PREV        BUTTON_LEFT
#define CUBE_INC         BUTTON_UP
#define CUBE_DEC         BUTTON_DOWN
#define CUBE_MODE        (BUTTON_POWER|BUTTON_UP)
#define CUBE_PAUSE       BUTTON_PLAY
#define CUBE_HIGHSPEED   (BUTTON_POWER|BUTTON_DOWN)

#elif (CONFIG_KEYPAD == CREATIVE_ZEN_PAD)
#define CUBE_QUIT        BUTTON_BACK
#define CUBE_NEXT        BUTTON_RIGHT
#define CUBE_PREV        BUTTON_LEFT
#define CUBE_INC         BUTTON_UP
#define CUBE_DEC         BUTTON_DOWN
#define CUBE_MODE        BUTTON_MENU
#define CUBE_PAUSE       BUTTON_PLAYPAUSE
#define CUBE_HIGHSPEED   BUTTON_SHORTCUT

#elif (CONFIG_KEYPAD == DX50_PAD)
#define CUBE_QUIT          (BUTTON_POWER|BUTTON_REL)
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_PLAY

#elif CONFIG_KEYPAD == CREATIVE_ZENXFI2_PAD
#define CUBE_QUIT       BUTTON_POWER

#elif (CONFIG_KEYPAD == AGPTEK_ROCKER_PAD)
#define CUBE_QUIT          (BUTTON_POWER|BUTTON_REL)
#define CUBE_NEXT          BUTTON_RIGHT
#define CUBE_PREV          BUTTON_LEFT
#define CUBE_INC           BUTTON_VOLUP
#define CUBE_DEC           BUTTON_VOLDOWN
#define CUBE_MODE          BUTTON_SELECT
#define CUBE_HIGHSPEED     (BUTTON_SELECT | BUTTON_REPEAT)
#define CUBE_PAUSE         (BUTTON_LEFT | BUTTON_REPEAT)

#elif (CONFIG_KEYPAD == XDUOO_X3_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_OPTION
#define CUBE_PAUSE         BUTTON_HOME
#define CUBE_HIGHSPEED     BUTTON_PLAY

#elif (CONFIG_KEYPAD == XDUOO_X3II_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_OPTION
#define CUBE_PAUSE         BUTTON_HOME
#define CUBE_HIGHSPEED     BUTTON_PLAY

#elif (CONFIG_KEYPAD == XDUOO_X20_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          BUTTON_OPTION
#define CUBE_PAUSE         BUTTON_HOME
#define CUBE_HIGHSPEED     BUTTON_PLAY

#elif (CONFIG_KEYPAD == IHIFI_770_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          (BUTTON_HOME | BUTTON_POWER)
#define CUBE_PAUSE         BUTTON_HOME
#define CUBE_HIGHSPEED     BUTTON_PLAY

#elif (CONFIG_KEYPAD == IHIFI_800_PAD)
#define CUBE_QUIT          BUTTON_POWER
#define CUBE_NEXT          BUTTON_NEXT
#define CUBE_PREV          BUTTON_PREV
#define CUBE_INC           BUTTON_VOL_UP
#define CUBE_DEC           BUTTON_VOL_DOWN
#define CUBE_MODE          (BUTTON_HOME | BUTTON_POWER)
#define CUBE_PAUSE         BUTTON_HOME
#define CUBE_HIGHSPEED     BUTTON_PLAY

#else
#error No keymap defined!
#endif

#ifdef HAVE_TOUCHSCREEN
#ifndef CUBE_QUIT
#define CUBE_QUIT          BUTTON_TOPLEFT
#endif
#ifndef CUBE_NEXT
#define CUBE_NEXT          BUTTON_MIDRIGHT
#endif
#ifndef CUBE_PREV
#define CUBE_PREV          BUTTON_MIDLEFT
#endif
#ifndef CUBE_INC
#define CUBE_INC           BUTTON_TOPMIDDLE
#endif
#ifndef CUBE_DEC
#define CUBE_DEC           BUTTON_BOTTOMMIDDLE
#endif
#ifndef CUBE_MODE
#define CUBE_MODE          BUTTON_TOPRIGHT
#endif
#ifndef CUBE_PAUSE
#define CUBE_PAUSE         BUTTON_CENTER
#endif
#ifndef CUBE_HIGHSPEED
#define CUBE_HIGHSPEED     BUTTON_BOTTOMRIGHT
#endif
#endif


#ifdef HAVE_LCD_BITMAP

#define DIST (10 * MIN(LCD_HEIGHT, LCD_WIDTH) / 16)
static int x_off = LCD_WIDTH/2;
static int y_off = LCD_HEIGHT/2;

#if LCD_DEPTH == 1
#define USEGSLIB
GREY_INFO_STRUCT
struct my_lcd {
    void (*update)(void);
    void (*clear_display)(void);
    void (*drawline)(int x1, int y1, int x2, int y2);
    void (*putsxy)(int x, int y, const unsigned char *string);
};

static struct my_lcd greyfuncs = {
    grey_update, grey_clear_display, grey_drawline, grey_putsxy
};
static struct my_lcd lcdfuncs; /* initialised at runtime */
static struct my_lcd *mylcd = &greyfuncs;

#define MYLCD(fn) mylcd->fn

#else
#define MYLCD(fn) rb->lcd_ ## fn
#endif

#if CONFIG_LCD == LCD_SSD1815
#define ASPECT 320 /* = 1.25 (fixed point 24.8) */
#else
#define ASPECT 256 /* = 1.00 */
#endif

#else /* !LCD_BITMAP */

#define MYLCD(fn) pgfx_ ## fn
#define DIST 9
static int x_off = 10;
static int y_off = 7;
#define ASPECT 300 /* = 1.175 */

#endif /* !LCD_BITMAP */

struct point_3D {
    long x, y, z;
};

struct point_2D {
    long x, y;
};

struct line {
    int start, end;
};

struct face {
    int corner[4];
    int line[4];
};

/* initial, unrotated cube corners */
static const struct point_3D sommet[8] =
{
    {-DIST, -DIST, -DIST},
    { DIST, -DIST, -DIST},
    { DIST,  DIST, -DIST},
    {-DIST,  DIST, -DIST},
    {-DIST, -DIST,  DIST},
    { DIST, -DIST,  DIST},
    { DIST,  DIST,  DIST},
    {-DIST,  DIST,  DIST}
};

/* The 12 lines forming the edges */
static const struct line lines[12] =
{
    {0, 1}, {1, 2}, {2, 3}, {3, 0},
    {4, 7}, {7, 6}, {6, 5}, {5, 4},
    {0, 4}, {1, 5}, {2, 6}, {3, 7}
};

static bool lines_drawn[12];

/* The 6 faces of the cube; points are in clockwise order when viewed
   from the outside */
static const struct face faces[6] =
{
    {{0, 1, 2, 3}, {0, 1, 2, 3}},
    {{4, 7, 6, 5}, {4, 5, 6, 7}},
    {{0, 4, 5, 1}, {8, 7, 9, 0}},
    {{2, 6, 7, 3}, {10, 5, 11, 2}},
    {{0, 3, 7, 4}, {3, 11, 4, 8}},
    {{1, 5, 6, 2}, {9, 6, 10, 1}}
};

#if LCD_DEPTH > 1 || defined(USEGSLIB)
static const unsigned face_colors[6] =
{
#ifdef HAVE_LCD_COLOR
    LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(0, 255, 0),
    LCD_RGBPACK(0, 255, 0), LCD_RGBPACK(0, 0, 255), LCD_RGBPACK(0, 0, 255)
#elif defined(USEGSLIB)
#ifdef MROBE_100
    GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
    GREY_DARKGRAY,  GREY_WHITE,     GREY_WHITE
#else
    GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
    GREY_DARKGRAY,  GREY_BLACK,     GREY_BLACK
#endif
#else
    LCD_LIGHTGRAY, LCD_LIGHTGRAY, LCD_DARKGRAY,
    LCD_DARKGRAY,  LCD_BLACK,     LCD_BLACK
#endif
};
#endif

enum {
#if LCD_DEPTH > 1 || defined(USEGSLIB)
    SOLID,
#endif
    HIDDEN_LINES,
    WIREFRAME,
    NUM_MODES
};

static int mode = 0;

struct counter {
    const char *label;
    short speed;
    short angle;
};

static struct counter axes[] = {
    {"x-axis", 1, 0},
    {"y-axis", 3, 0},
    {"z-axis", 2, 0}
};

static struct point_3D point3D[8];
static struct point_2D point2D[8];
static long matrice[3][3];

static const int nb_points = 8;
static long z_off = 600;

static void cube_rotate(int xa, int ya, int za)
{
    int i;
    /* Just to prevent unnecessary lookups */
    long sxa, cxa, sya, cya, sza, cza;

    sxa = fp14_sin(xa);
    cxa = fp14_cos(xa);
    sya = fp14_sin(ya);
    cya = fp14_cos(ya);
    sza = fp14_sin(za);
    cza = fp14_cos(za);

    /* calculate overall translation matrix */
    matrice[0][0] = (cza * cya) >> 14;
    matrice[1][0] = (sza * cya) >> 14;
    matrice[2][0] = -sya;

    matrice[0][1] = (((cza * sya) >> 14) * sxa - sza * cxa) >> 14;
    matrice[1][1] = (((sza * sya) >> 14) * sxa + cxa * cza) >> 14;
    matrice[2][1] = (sxa * cya) >> 14;

    matrice[0][2] = (((cza * sya) >> 14) * cxa + sza * sxa) >> 14;
    matrice[1][2] = (((sza * sya) >> 14) * cxa - cza * sxa) >> 14;
    matrice[2][2] = (cxa * cya) >> 14;

    /* apply translation matrix to all points */
    for (i = 0; i < nb_points; i++)
    {
        point3D[i].x = matrice[0][0] * sommet[i].x + matrice[1][0] * sommet[i].y
                     + matrice[2][0] * sommet[i].z;

        point3D[i].y = matrice[0][1] * sommet[i].x + matrice[1][1] * sommet[i].y
                     + matrice[2][1] * sommet[i].z;

        point3D[i].z = matrice[0][2] * sommet[i].x + matrice[1][2] * sommet[i].y
                     + matrice[2][2] * sommet[i].z;
    }
}

static void cube_viewport(void)
{
    int i;

    /* Do viewport transformation for all points */
    for (i = 0; i < nb_points; i++)
    {
#if ASPECT != 256
        point2D[i].x = (point3D[i].x * ASPECT) / (point3D[i].z + (z_off << 14))
                     + x_off;
#else
        point2D[i].x = (point3D[i].x << 8) / (point3D[i].z + (z_off << 14))
                     + x_off;
#endif
        point2D[i].y = (point3D[i].y << 8) / (point3D[i].z + (z_off << 14))
                     + y_off;
    }
}

static void cube_draw(void)
{
    int i, j, line;
#if LCD_DEPTH > 1 || defined(USEGSLIB)
    unsigned old_foreground;
#endif

    switch (mode)
    {
#if LCD_DEPTH > 1 || defined(USEGSLIB)
      case SOLID:
      
        old_foreground = mylcd_get_foreground();
        for (i = 0; i < 6; i++)
        {
            /* backface culling; if the shape winds counter-clockwise, we are
             * looking at the backface, and the (simplified) cross product
             * is < 0. Do not draw it. */
            if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
                   * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
                   - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
                   * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
                continue;

            mylcd_set_foreground(face_colors[i]);
            mylcd_filltriangle(point2D[faces[i].corner[0]].x,
                               point2D[faces[i].corner[0]].y,
                               point2D[faces[i].corner[1]].x,
                               point2D[faces[i].corner[1]].y,
                               point2D[faces[i].corner[2]].x,
                               point2D[faces[i].corner[2]].y);
            mylcd_filltriangle(point2D[faces[i].corner[0]].x,
                               point2D[faces[i].corner[0]].y,
                               point2D[faces[i].corner[2]].x,
                               point2D[faces[i].corner[2]].y,
                               point2D[faces[i].corner[3]].x,
                               point2D[faces[i].corner[3]].y);

        }
        mylcd_set_foreground(old_foreground);
        break;
#endif /* (LCD_DEPTH > 1) || GSLIB */

      case HIDDEN_LINES:

        rb->memset(lines_drawn, 0, sizeof(lines_drawn));
        for (i = 0; i < 6; i++)
        {
            /* backface culling; if the shape winds counter-clockwise, we are
             * looking at the backface, and the (simplified) cross product
             * is < 0. Do not draw it. */
            if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
                   * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
                   - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
                   * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
                continue;

            for (j = 0; j < 4; j++)
            {
                line = faces[i].line[j];
                if (!lines_drawn[line])
                {
                    lines_drawn[line] = true;
                    MYLCD(drawline)(point2D[lines[line].start].x,
                                    point2D[lines[line].start].y,
                                    point2D[lines[line].end].x,
                                    point2D[lines[line].end].y);
                }
            }
        }
        break;

      case WIREFRAME:

        for (i = 0; i < 12; i++)
            MYLCD(drawline)(point2D[lines[i].start].x,
                            point2D[lines[i].start].y,
                            point2D[lines[i].end].x,
                            point2D[lines[i].end].y);
        break;
    }
}

static void cleanup(void)
{
#ifdef USEGSLIB
    grey_release();
#endif
}

enum plugin_status plugin_start(const void* parameter)
{
    int t_disp = 0;
#ifdef USEGSLIB
    unsigned char *gbuf;
    size_t gbuf_size = 0;
    bool mode_switch = true;
#endif

    int button;
#if defined(CUBE_MODE_PRE) || \
    defined(CUBE_PAUSE_PRE) || \
    defined(CUBE_HIGHSPEED_PRE)
    int lastbutton = BUTTON_NONE;
#endif
    int curr = 0;
    bool highspeed = false;
    bool paused = false;
    bool redraw = true;
    bool quit = false;

    (void)(parameter);

#ifdef HAVE_LCD_BITMAP
#if defined(USEGSLIB)
    gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
    if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED,
                   LCD_WIDTH, LCD_HEIGHT, NULL))
    {
        rb->splash(HZ, "Couldn't init greyscale display");
        return PLUGIN_ERROR;
    }

    /* init lcd_ function pointers */
    lcdfuncs.update =        rb->lcd_update;
    lcdfuncs.clear_display = rb->lcd_clear_display;
    lcdfuncs.drawline =      rb->lcd_drawline;
    lcdfuncs.putsxy =        rb->lcd_putsxy;

#ifdef MROBE_100
    grey_set_background(GREY_BLACK);
#endif

    grey_setfont(FONT_SYSFIXED);
#endif
    rb->lcd_setfont(FONT_SYSFIXED);
#endif

    atexit(cleanup);
    while(!quit)
    {
        if (redraw)
        {
            MYLCD(clear_display)();
            cube_rotate(axes[0].angle, axes[1].angle, axes[2].angle);
            cube_viewport();
            cube_draw();
            redraw = false;
        }

#ifdef HAVE_LCD_BITMAP
        if (t_disp > 0)
        {
            char buffer[30];
            t_disp--;
            rb->snprintf(buffer, sizeof(buffer), "%s: %d %s",
                         axes[curr].label,
                         paused ? axes[curr].angle : axes[curr].speed,
                         highspeed ? "(hs)" : "");
            MYLCD(putsxy)(0, LCD_HEIGHT-8, buffer);
            if (t_disp == 0)
                redraw = true;
        }
#else
        if (t_disp > 0)
        {
            if (t_disp == DISP_TIME)
            {
                rb->lcd_puts(5, 0, axes[curr].label);
                rb->lcd_putsf(5, 1, "%d %c",
                             paused ? axes[curr].angle : axes[curr].speed,
                             highspeed ? 'H' : ' ');
            }
            t_disp--;
            if (t_disp == 0)
            {
                rb->lcd_clear_display();
                pgfx_display(0, 0);
            }
        }
#endif
#ifdef USEGSLIB
        if (mode_switch)
        {
            grey_show(mode == SOLID);
            mode_switch = false;
        }
#endif
        MYLCD(update)();

        if (!paused)
        {
            int i;

            for (i = 0; i < 3; i++)
            {
                axes[i].angle += axes[i].speed;
                if (axes[i].angle > 359)
                    axes[i].angle -= 360;
                else if (axes[i].angle < 0)
                    axes[i].angle += 360;
            }
            redraw = true;

            if (highspeed)
                rb->yield();
            else
                rb->sleep(HZ/25);
            button = rb->button_get(false);
        }
        else
        {
            button = rb->button_get_w_tmo(HZ/25);
        }

        switch (button)
        {
            case CUBE_INC:
            case CUBE_INC|BUTTON_REPEAT:
                if (!paused)
                {
                    if (axes[curr].speed < 10)
                        axes[curr].speed++;
                }
                else
                {
                    if (++axes[curr].angle > 359)
                        axes[curr].angle -= 360;
                }
                t_disp = DISP_TIME;
                redraw = true;
                break;

            case CUBE_DEC:
            case CUBE_DEC|BUTTON_REPEAT:
                if (!paused)
                {
                    if (axes[curr].speed > -10)
                        axes[curr].speed--;
                }
                else
                {
                    if (--axes[curr].angle < 0)
                        axes[curr].angle += 360;
                }
                t_disp = DISP_TIME;
                redraw = true;
                break;
                
            case CUBE_NEXT:
                if (++curr > 2)
                    curr = 0;
                t_disp = DISP_TIME;
                break;

            case CUBE_PREV:
                if (--curr < 0)
                    curr = 2;
                t_disp = DISP_TIME;
                break;

            case CUBE_MODE:
#ifdef CUBE_MODE_PRE
                if (lastbutton != CUBE_MODE_PRE)
                    break;
#endif
                if (++mode >= NUM_MODES)
                    mode = 0;
#ifdef USEGSLIB
                mylcd = (mode == SOLID) ? &greyfuncs : &lcdfuncs;
                mode_switch = true;
#endif
                redraw = true;
                break;

            case CUBE_PAUSE:
#ifdef CUBE_PAUSE_PRE
                if (lastbutton != CUBE_PAUSE_PRE)
                    break;
#endif
                paused = !paused;
                break;

            case CUBE_HIGHSPEED:
#ifdef CUBE_HIGHSPEED_PRE
                if (lastbutton != CUBE_HIGHSPEED_PRE)
                    break;
#endif
                highspeed = !highspeed;
                t_disp = DISP_TIME;
                break;

#ifdef CUBE_RC_QUIT
            case CUBE_RC_QUIT:
#endif
            case CUBE_QUIT:
                quit = true;
                break;

            default:
                exit_on_usb(button);
                break;
        }
#if defined(CUBE_MODE_PRE) || \
    defined(CUBE_PAUSE_PRE) || \
    defined(CUBE_HIGHSPEED_PRE)
        if (button != BUTTON_NONE)
            lastbutton = button;
#endif
    }

    return PLUGIN_OK;
}