1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
1111111 1111 11111111111 1 1 1 11111 1
1 1 1 1 1111111 1 1 1 1 1 1
1 1 1 1 1 11 1 1 111 1 1 111
1 1 1 1 1 1 1 1 1 1 1 11111 1
11111111 111111 1111111111 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1111 1 1 1111
1 1 1 1 1 1 1 1111111111 1 11111 1
1111111 1 1 1 1 1 1 1
1 1 1 111111111111111 1 1 1 111111111111111
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 11 1 11
1 1 1 1 1 1 1 1 11 1 11
1 1 1 1 1 1 11 1
bool loadbdf(const char *path, Bitmap *chars)
{
FILE *file = fopen(path, "r");
if(!file) {
return false;
}
char text[128];
while(fscanf(file, "%s", text) != EOF) {
char *pch = strstr(text, "ENCODING");
if(pch == text) {
unsigned int code = 0;
fscanf(file, "%d", &code);
createbitmap(file, chars+code);
}
}
fclose(file);
return true;
}
bool createbitmap(FILE *file, Bitmap *bitmap)
{
char text[128];
unsigned int i=0;
unsigned int j=0;
int m=0;
int n=0;
while(fscanf(file, "%s", text) != EOF) {
char *pch = strstr(text, "DWIDTH");
if(pch == text) {
unsigned int i=0;
fscanf(file, "%u", &i);
bitmap->width += i;
continue;
}
pch = strstr(text, "BBX");
if(pch == text) {
unsigned int i=0;
unsigned int j=0;
int m=0;
int n=0;
fscanf(file, "%u %u %d %d", &i, &j, &m, &n);
bitmap->width = bitmap->width - m;
bitmap->height = j;
bitmap->x = m;
bitmap->y = n;
bitmap->pitch = i/8;
if(i % 8 != 0) {
bitmap->pitch += 1;
}
continue;
}
pch = strstr(text, "BITMAP");
if(pch == text) {
int size = bitmap->pitch * bitmap->height;
unsigned char *data = calloc(size, sizeof(unsigned char));
int k = 0;
for(int p=0; p<bitmap->height; p++) {
unsigned int value;
fscanf(file, "%x", &value);
for(int q=bitmap->pitch -1; q>=0; q--) {
data[k] = (value>>(q*8)) & 0x00FF;
k++;
}
}
bitmap->data = data;
return true;
}
}
return false;
}
完整程式
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
typedef struct Bitmap_ {
int x;
int y;
unsigned int width;
unsigned int height;
unsigned int pitch;
unsigned char* data;
} Bitmap;
void printtext(Bitmap *bitmap)
{
for(int j=0; j<bitmap->height; j++) {
for(int i=0; i<bitmap->pitch; i++) {
for(int k=7; k>=0; k--) {
if(7-k+i*8 == bitmap->width)
break;
printf("%c", (bitmap->data[i+j*bitmap->pitch] & 0x1<<k)?'1':' ');
}
}
printf("\n");
}
}
void combinetext(Bitmap *bitmap, Bitmap *font)
{
int x1 = bitmap->x;
int y1 = bitmap->y;
unsigned int width1 = bitmap->width;
unsigned int height1 = bitmap->height;
unsigned int pitch1 = bitmap->pitch;
unsigned char* data1 = bitmap->data;
int x2 = x1 + width1 + font->x;
int y2 = font->y;
unsigned int width2 = font->width;
unsigned int height2 = font->height;
unsigned int pitch2 = font->pitch;
unsigned char* data2 = font->data;
int x3 = x1;
if(x1 > x2) {
x3 = x2;
}
unsigned int width3 = width1 + font->x + width2;
int y3 = y1;
unsigned int height3 = height1;
if(y1 > y2) {
y3 = y2;
height3 += (y1 - y2);
}
if(y1+height1 < y2+height2) {
height3 += (y2+height2) - (y1+height1);
}
unsigned int pitch3 = width3/8;
if(width3 % 8 != 0) {
pitch3 += 1;
}
int size3 = pitch3 * height3;
unsigned char *data3 = calloc(size3, sizeof(unsigned char));
int shiftX1 = 0;
int shiftY1 = (height3+y3) - (height1+y1);
for(int j=0; j<height1; j++) {
int nj = j+shiftY1;
for(int i=0; i<pitch1; i++) {
int n = shiftX1/8+i+nj*pitch3;
unsigned char data = data1[i+j*pitch1];
int shift = shiftX1%8;
if(shift == 0) {
data3[n] |= data;
} else {
data3[n] |= (0x7f & data>>shift);
data3[n+1] |= data<<(8-shift);
}
}
}
int shiftX2 = x2-x3;
int shiftY2 = (height3+y3) - (height2+y2);
for(int j=0; j<height2; j++) {
int nj = j+shiftY2;
for(int i=0; i<pitch2; i++) {
int n = shiftX2/8+i+nj*pitch3;
unsigned char data = data2[i+j*pitch2];
int shift = shiftX2%8;
if(shift == 0) {
data3[n] |= data;
} else {
data3[n] |= (0x7f & data>>shift);
data3[n+1] |= data<<(8-shift);
}
}
}
free(bitmap->data);
bitmap->x = x3;
bitmap->y = y3;
bitmap->width = width3;
bitmap->height = height3;
bitmap->pitch = pitch3;
bitmap->data = data3;
}
bool createbitmap(FILE *file, Bitmap *bitmap)
{
char text[128];
unsigned int i=0;
unsigned int j=0;
int m=0;
int n=0;
while(fscanf(file, "%s", text) != EOF) {
char *pch = strstr(text, "DWIDTH");
if(pch == text) {
unsigned int i=0;
fscanf(file, "%u", &i);
bitmap->width += i;
continue;
}
pch = strstr(text, "BBX");
if(pch == text) {
unsigned int i=0;
unsigned int j=0;
int m=0;
int n=0;
fscanf(file, "%u %u %d %d", &i, &j, &m, &n);
bitmap->width = bitmap->width - m;
bitmap->height = j;
bitmap->x = m;
bitmap->y = n;
bitmap->pitch = i/8;
if(i % 8 != 0) {
bitmap->pitch += 1;
}
continue;
}
pch = strstr(text, "BITMAP");
if(pch == text) {
int size = bitmap->pitch * bitmap->height;
unsigned char *data = calloc(size, sizeof(unsigned char));
int k = 0;
for(int p=0; p<bitmap->height; p++) {
unsigned int value;
fscanf(file, "%x", &value);
for(int q=bitmap->pitch -1; q>=0; q--) {
data[k] = (value>>(q*8)) & 0x00FF;
k++;
}
}
bitmap->data = data;
return true;
}
}
return false;
}
bool loadbdf(const char *path, Bitmap *chars)
{
FILE *file = fopen(path, "r");
if(!file) {
return false;
}
char text[128];
while(fscanf(file, "%s", text) != EOF) {
char *pch = strstr(text, "ENCODING");
if(pch == text) {
unsigned int code = 0;
fscanf(file, "%d", &code);
createbitmap(file, chars+code);
}
}
fclose(file);
return true;
}
bool rasters(const wchar_t texts[], Bitmap *bitmap, Bitmap *chars)
{
if(texts[0] == '\0') {
return true;
}
for(int i=0; i<wcslen(texts); i++) {
unsigned int ucode = texts[i];
combinetext(bitmap, chars+ucode);
}
return true;
}
int main(int argc, char *argv[])
{
Bitmap *chars = calloc(65535, sizeof(Bitmap));
if(loadbdf("font.bdf", chars)) {
Bitmap *bitmap = calloc(1, sizeof(Bitmap));
if(rasters(L"新年快樂", bitmap, chars)) {
printtext(bitmap);
}
} else {
printf("load error");
}
return EXIT_SUCCESS;
}
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