【点阵字库】读取某个字符

#include <stdio.h>
#include <stdlib.h>

static unsigned int gb2312_0_char_offset (const unsigned char* mchar)
{
    int area = mchar [0] - 0xA1;
	printf("[%s]\n", __FUNCTION__);
    if (area < 9) {
        return (area * 94 + mchar [1] - 0xA1);
    }
    else if (area >= 15)
        return ((area - 6)* 94 + mchar [1] - 0xA1);

    return 0;
}


static void to_show_hzk_ch(unsigned char * buffer){
	unsigned char key[8] = {0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01 };
	int i = 0;
	int j = 0;
	int k = 0;
	int flag;
	for(k=0; k<32; k++){
		if(k%8 == 0){
			printf("\n");
		}
        printf("0x%02X,", buffer[k]);
    }
    printf("\n\n");

	printf("  ");
	for(k=0; k<16; k++){
		printf("%d", (k)%8+1);
	}
	printf("\n");
	
    for(k=0; k<16; k++){
		printf("%2d ", k+1);
        for(j=0; j<2; j++){
            for(i=0; i<8; i++){
                flag = buffer[k*2+j]&key[i];
				printf("%s", flag?"O":" ");
            }
        }
        printf("\n");
    }

	printf("\n");
    printf("\n");
}


int main(void)
{
    FILE* fphzk = NULL;
    int offset;
    int flag;
    unsigned char buffer[32];
    fphzk = fopen("song-16-gb2312.bin", "rb");
    if(fphzk == NULL){
        fprintf(stderr, "error hzk16\n");
        return 1;
    }

	offset = 32 * gb2312_0_char_offset("国");
	fseek(fphzk, offset, SEEK_SET);
    fread(buffer, 1, 32, fphzk);
	to_show_hzk_ch(buffer); 

    fclose(fphzk);
    fphzk = NULL;
	
    return 0;
}

执行结果

[gb2312_0_char_offset]

0x00,0x04,0x7F,0xFE,0x40,0x04,0x40,0x24,
0x5F,0xF4,0x41,0x04,0x41,0x04,0x4F,0xE4,
0x41,0x04,0x41,0x44,0x41,0x24,0x5F,0xF4,
0x40,0x04,0x40,0x04,0x7F,0xFC,0x40,0x04,

  1234567812345678
 1              O  
 2  OOOOOOOOOOOOOO 
 3  O           O  
 4  O        O  O  
 5  O OOOOOOOOO O  
 6  O     O     O  
 7  O     O     O  
 8  O  OOOOOOO  O  
 9  O     O     O  
10  O     O O   O  
11  O     O  O  O  
12  O OOOOOOOOO O  
13  O           O  
14  O           O  
15  OOOOOOOOOOOOO  
16  O           O