Revision 0:7e8dccadb070, committed 2014-06-29

Comitter:

Naoto_111

Date:

Sun Jun 29 12:19:38 2014 +0000

Commit message:

first commit

Changed in this revision

diff -r 000000000000 -r 7e8dccadb070 Bitmap_KS0107.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Bitmap_KS0107.cpp	Sun Jun 29 12:19:38 2014 +0000
@@ -0,0 +1,69 @@
+#include "Bitmap_KS0107.h"
+
+Bitmap_KS0107::Bitmap_KS0107(Display *d,int sx,int sy,int w,int h){
+    start_x=sx;
+    start_y=sy;
+    width=w;
+    height=h;
+    bmp_x=0;
+    bmp_y=0;
+    bmp_data=NULL;
+    disp=d;
+}
+
+void Bitmap_KS0107::setpos(int sx,int sy,int w,int h){
+    start_x=sx;
+    start_y=sy;
+    width=w;
+    height=h;
+}
+
+void Bitmap_KS0107::read(const char *filename){
+    FILE *fp;
+    char buf[8];
+    int offbits;
+    
+    if(bmp_data!=NULL){
+        for (int i= 0; i<bmp_y/8; ++i)delete[] bmp_data[i];
+        delete[] bmp_data;
+    }
+    
+    if((fp = fopen(filename, "rb")) == NULL);
+    fseek(fp, 10, SEEK_SET);
+    fread(&offbits,4,1,fp);
+    
+    fseek(fp,18, SEEK_SET);
+    fread(&bmp_x,4,1,fp);
+    
+    fseek(fp, 22, SEEK_SET);
+    fread(&bmp_y,4,1,fp);
+    
+    if((bmp_x%4)!=0)bmp_x=((bmp_x/32)+1)*32;
+    if((bmp_y%8)!=0)bmp_y=(bmp_y/8)*8;
+    bmp_data= new char*[bmp_y/8];
+    
+    for (int i= 0; i<bmp_y/8; ++i)bmp_data[i]= new char[bmp_x];
+    
+    for(int i=0;i<bmp_y/8;i++)for(int j=0;j<bmp_x;j++)bmp_data[i][j]=0;
+    
+    for(int y=0; y<bmp_y/8; y++)for(int x=0; x<bmp_x/8; x++) {
+            for(int y_buf=0; y_buf<8; y_buf++) {
+                fseek(fp,offbits+(bmp_x/8)*(bmp_y-1)-(bmp_x/8)*y*8-(bmp_x/8)*y_buf+x,SEEK_SET);
+                fread(&buf[y_buf],1,1,fp);
+            }
+            int i,j,bit,add;
+            for(bit=1,i=0; i<8; i++,bit=bit<<1)for(add=1, j=0; j<8; j++,add=add<<1)if(buf[j]&bit)bmp_data[y][x*8+7-i]+=add;
+    };
+    
+    fclose(fp);
+    
+}
+void Bitmap_KS0107::print(){
+    for(int row=start_x; row<width+start_x; row++)for(int line=start_y/8; line<height/8+start_y/8; line++)disp->write(line,row,bmp_data[line][row]);
+}
+
+/*
+void Bitmap_KS0107::print_zoom(int rate){
+    //unimplemented
+}
+*/
\ No newline at end of file

diff -r 000000000000 -r 7e8dccadb070 Bitmap_KS0107.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Bitmap_KS0107.h	Sun Jun 29 12:19:38 2014 +0000
@@ -0,0 +1,30 @@
+//ATTENTION
+//1.This library needs "Display" library(https://mbed.org/users/hornfeldt/code/Display/).
+//2.This library only supports 1-bit depth BMP file(monochrome BMP file).
+
+#ifndef BITMAP_KS0107
+#define BITMAP_KS0107
+
+#include "mbed.h"
+#include "Display.h"
+
+class Bitmap_KS0107 {
+    public:
+        Bitmap_KS0107(Display *d,int sx,int sy,int w,int h);//argument:pointer to Display(class) object,the x-coordinate of top left of drawing area,the y-coordinate of top left of drawing area,the width of drawing area, the height of drawing area
+        void setpos(int sx,int sy,int w,int h);//change drawing areas(argument:the x-coordinate of top left of drawing area,the y-coordinate of top left of drawing area,the width of drawing area, the height of drawing area)
+        void read(const char *filename);//argument:filepath of a bitmap file
+        void print();//print the picture to the drawing area
+        //void print_zoom(int rate);//unimplemented
+        
+        
+    private:
+        int start_x;
+        int start_y;
+        int width;
+        int height;
+        int bmp_x;
+        int bmp_y;
+        char **bmp_data;
+        Display *disp;
+};
+#endif
\ No newline at end of file