lcd-playersim.c

编译后直接运行的ＭＰ３播放器全部Ｃ语言源代码 一个包含FAT文件系统、系统引导 Boot、FLASH Driver等内容的

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id: lcd-playersim.c,v 1.11 2003/06/05 08:29:21 kjer Exp $
 *
 * Copyright (C) 2002 by Alan Korr
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#include "config.h"
#include "hwcompat.h"

#include "lcd.h"
#include "kernel.h"
#include "thread.h"
#include <string.h>
#include <stdlib.h>
#include "file.h"
#include "debug.h"
#include "system.h"

#include "font-player.h"
#include "lcd-playersim.h"

/*** definitions ***/

#define CHAR_WIDTH 6
#define CHAR_HEIGHT 8
#define ICON_HEIGHT 24
#define CHAR_PIXEL 4
#define BORDER_MARGIN 5

static int double_height=1;
extern bool lcd_display_redraw;
extern const unsigned short *lcd_ascii;
extern unsigned char hardware_buffer_lcd[11][2];


void lcd_print_icon(int x, int icon_line, bool enable, char **icon)
{
  int xpos = x;
  int ypos = icon_line*(ICON_HEIGHT+CHAR_HEIGHT*2*4);
  int row=0, col;

  int p=0, cp=0;
  struct coordinate points[LCD_WIDTH * LCD_HEIGHT];
  struct coordinate clearpoints[LCD_WIDTH * LCD_HEIGHT];
  
  while (icon[row]) {
    col=0;
    while (icon[row][col]) {
      switch(icon[row][col]) {
      case '*':
        if (enable) {
          /* set a dot */
          points[p].x = xpos + col +BORDER_MARGIN;
          points[p].y = ypos+row +BORDER_MARGIN;
          p++; /* increase the point counter */
        } else {
          /* clear a dot */
          clearpoints[cp].x = xpos + col +BORDER_MARGIN;
          clearpoints[cp].y = ypos+row +BORDER_MARGIN;
          cp++; /* increase the point counter */
        }
        break;
      case ' ': /* Clear bit */
        /* clear a dot */
        clearpoints[cp].x = xpos + col+BORDER_MARGIN;
        clearpoints[cp].y = ypos+row+BORDER_MARGIN;
        cp++; /* increase the point counter */
        break;
      }
      col++;
    }
    row++;
  }
/*  DEBUGF("icon draw %d/%d\n", p, cp);*/
  if (cp)
      drawdots(0, &clearpoints[0], cp);
  if (p)
      drawdots(1, &points[0], p);
}

void lcd_print_char(int x, int y)
{
  int xpos = x * CHAR_WIDTH * CHAR_PIXEL;
  int ypos = y * CHAR_HEIGHT * CHAR_PIXEL + ICON_HEIGHT;
  int col, row;
  int p=0, cp=0;
  struct rectangle points[CHAR_HEIGHT*CHAR_WIDTH];
  struct rectangle clearpoints[CHAR_HEIGHT*CHAR_WIDTH];
  unsigned char ch=hardware_buffer_lcd[x][y];
  static char bitmap_content[11*8][2*8];

  if (double_height == 2 && y == 1)
    return; /* Second row can't be printed in double height. ??*/

  for (col=0; col<5; col++) {
    unsigned char fontbitmap=(*font_player)[ch][col];
    for (row=0; row<7; row++) {
      char fontbit=fontbitmap&(1<<row);
      int height=CHAR_PIXEL*double_height;
      int ypixel;
      if (bitmap_content[x*8+col][y*8+row*double_height]!=fontbit ||
          bitmap_content[x*8+col][y*8+row*double_height+double_height-1]!=
          fontbit) {
        bitmap_content[x*8+col][y*8+row*double_height]=fontbit;
        bitmap_content[x*8+col][y*8+row*double_height+double_height-1]=fontbit;

        ypixel=CHAR_PIXEL*(double_height*row)+ypos;
        if (double_height==2) {
            if (row == 3) /* Adjust for blank row in the middle */
                height=CHAR_PIXEL;
        }

        if (fontbit) {
            /* set a dot */
            points[p].x = xpos + col*CHAR_PIXEL +BORDER_MARGIN;
            points[p].y = ypixel +BORDER_MARGIN;
            points[p].width=CHAR_PIXEL;
            points[p].height=height;
            p++; /* increase the point counter */
        } else {
            clearpoints[cp].x = xpos + col*CHAR_PIXEL +BORDER_MARGIN;
            clearpoints[cp].y = ypixel +BORDER_MARGIN;
            clearpoints[cp].width=CHAR_PIXEL;
            clearpoints[cp].height=height;
            cp++;
        }
      }
    }
  }
/*  DEBUGF("print_char %d/%d\n", p, cp);*/
  if (cp)
      drawrectangles(0, &clearpoints[0], cp);
  if (p)
      drawrectangles(1, &points[0], p);
}


/*
 * Draw a rectangle with upper left corner at (x, y)
 * and size (nx, ny)
 */
void lcd_drawrect (int x, int y, int nx, int ny)
{
    (void)x;
    (void)y;
    (void)nx;
    (void)ny;
}

/* Invert a rectangular area at (x, y), size (nx, ny) */
void lcd_invertrect (int x, int y, int nx, int ny)
{
    (void)x;
    (void)y;
    (void)nx;
    (void)ny;
}

void lcd_drawline( int x1, int y1, int x2, int y2 )
{
    (void)x1;
    (void)x2;
    (void)y1;
    (void)y2;
}

void lcd_clearline( int x1, int y1, int x2, int y2 )
{
    (void)x1;
    (void)x2;
    (void)y1;
    (void)y2;
}

/*
 * Set a single pixel
 */
void lcd_drawpixel(int x, int y)
{
    (void)x;
    (void)y;
}

/*
 * Clear a single pixel
 */
void lcd_clearpixel(int x, int y)
{
    (void)x;
    (void)y;
}

/*
 * Invert a single pixel
 */
void lcd_invertpixel(int x, int y)
{
    (void)x;
    (void)y;
}



void lcd_double_height(bool on)
{
    double_height = 1;
    if (on)
        double_height = 2;
    lcd_display_redraw=true;
    lcd_update();
}

void lcd_define_hw_pattern(int which, char *pattern, int length)
{
    int i, j;
    int pat = which / 8;
    unsigned char icon[8];
    memset(icon, 0, sizeof icon);

    DEBUGF("Defining pattern %d:", pat);
    for (j = 0; j <= 5; j++) {
        for (i = 0; i < length; i++) {
            if ((pattern[i])&(1<<(j)))
                icon[5-j] |= (1<<(i));
        }
    }
    for (i = 1; i <= 5; i++)
    {
        DEBUGF(" 0x%02x", icon[i]);
        (*font_player)[pat][i-1] = icon[i];
    }
    DEBUGF("\n");
    lcd_display_redraw=true;
    lcd_update();
}