extracted font routines from example

1 files changed, 62 insertions, 0 deletions

diff --git a/font.c b/font.c
new file mode 100644
index 0000000..3fa6b3c
--- /dev/null
+++ b/font.c
@@ -0,0 +1,62 @@
+#include "rfb.h"
+
+int rfbDrawChar(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		 int x,int y,char c,CARD32 colour)
+{
+  int i,j,k,width,height;
+  unsigned char d;
+  unsigned char* data=font->data+font->metaData[c*5];
+  int rowstride=rfbScreen->paddedWidthInBytes;
+  int bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8;
+
+  width=font->metaData[c*5+1];
+  height=font->metaData[c*5+2];
+  x+=font->metaData[c*5+3];
+  y+=font->metaData[c*5+4]-height+1;
+
+  for(j=0;j<height;j++) {
+    for(i=0;i<width;i++) {
+      if((i&7)==0) {
+	d=*data;
+	data++;
+      }
+      if(d&0x80) {
+	for(k=0;k<bpp;k++)
+	  rfbScreen->frameBuffer[(y+j)*rowstride+(x+i)*bpp+k]=
+	    ((colour>>(8*bpp))&0xff);
+      }
+      d<<=1;
+    }
+    if((i&7)==0)
+      data++;
+  }
+  return(width);
+}
+
+void rfbDrawString(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		   int x,int y,char* string,CARD32 colour)
+{
+  while(*string) {
+    x+=rfbDrawChar(rfbScreen,font,x,y,*string,colour);
+    string++;
+  }
+}
+
+int rfbWidth(rfbFontDataPtr font,char* string)
+{
+  int i=0;
+  while(*string) {
+    i+=font->metaData[*string*5+1];
+    string++;
+  }
+  return(i);
+}
+
+void rfbFontBBox(rfbFontDataPtr font,char c,int* x1,int* y1,int* x2,int* y2)
+{
+  *x1+=font->metaData[c*5+3];
+  *y1+=font->metaData[c*5+4]-font->metaData[c*5+2]+1;
+  *x2=*x1+font->metaData[c*5+1];
+  *y2=*y1+font->metaData[c*5+2];
+}
+