Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdenetwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 192 insertions, 0 deletions

diff --git a/krfb/libvncserver/font.c b/krfb/libvncserver/font.c
new file mode 100644
index 00000000..b9d68d0f
--- /dev/null
+++ b/krfb/libvncserver/font.c
@@ -0,0 +1,192 @@
+#include "rfb.h"
+
+int rfbDrawChar(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		 int x,int y,unsigned char c,Pixel col)
+{
+  int i,j,width,height;
+  unsigned char* data=font->data+font->metaData[c*5];
+  unsigned char d=*data;
+  int rowstride=rfbScreen->paddedWidthInBytes;
+  int bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8;
+  char *colour=(char*)&col;
+
+  if(!rfbEndianTest)
+    colour += 4-bpp;
+
+  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)
+	memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp,colour,bpp);
+      d<<=1;
+    }
+    /* if((i&7)!=0) data++; */
+  }
+  return(width);
+}
+
+void rfbDrawString(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+		   int x,int y,const char* string,Pixel colour)
+{
+  while(*string) {
+    x+=rfbDrawChar(rfbScreen,font,x,y,*string,colour);
+    string++;
+  }
+}
+
+/* TODO: these two functions need to be more efficient */
+int rfbDrawCharWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+			int x,int y,unsigned char c,
+			int x1,int y1,int x2,int y2,
+			Pixel col,Pixel bcol)
+{
+  int i,j,width,height;
+  unsigned char* data=font->data+font->metaData[c*5];
+  unsigned char d;
+  int rowstride=rfbScreen->paddedWidthInBytes;
+  int bpp=rfbScreen->rfbServerFormat.bitsPerPixel/8,extra_bytes=0;
+  char* colour=(char*)&col;
+  char* bcolour=(char*)&bcol;
+
+  if(!rfbEndianTest) {
+    colour+=4-bpp;
+    bcolour+=4-bpp;
+  }
+
+  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;
+
+  /* after clipping, x2 will be count of bytes between rows,
+   * x1 start of i, y1 start of j, width and height will be adjusted. */
+  if(y1>y) { y1-=y; data+=(width+7)/8; height-=y1; y+=y1; } else y1=0;
+  if(x1>x) { x1-=x; data+=x1; width-=x1; x+=x1; extra_bytes+=x1/8; } else x1=0;
+  if(y2<y+height) height-=y+height-y2;
+  if(x2<x+width) { extra_bytes+=(x1+width)/8-(x+width-x2+7)/8; width-=x+width-x2; }
+
+  d=*data;
+  for(j=y1;j<height;j++) {
+    if((x1&7)!=0)
+      d=data[-1]; /* TODO: check if in this case extra_bytes is correct! */
+    for(i=x1;i<width;i++) {
+      if((i&7)==0) {
+	d=*data;
+	data++;
+      }
+      /* if(x+i>=x1 && x+i<x2 && y+j>=y1 && y+j<y2) */ {
+	 if(d&0x80) {
+	   memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp,
+		  colour,bpp);
+	 } else if(bcol!=col) {
+	   memcpy(rfbScreen->frameBuffer+(y+j)*rowstride+(x+i)*bpp,
+		  bcolour,bpp);
+	 }
+      }
+      d<<=1;
+    }
+    /* if((i&7)==0) data++; */
+    data += extra_bytes;
+  }
+  return(width);
+}
+
+void rfbDrawStringWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,
+			   int x,int y,const char* string,
+			   int x1,int y1,int x2,int y2,
+			   Pixel colour,Pixel backColour)
+{
+  while(*string) {
+    x+=rfbDrawCharWithClip(rfbScreen,font,x,y,*string,x1,y1,x2,y2,
+			   colour,backColour);
+    string++;
+  }
+}
+
+int rfbWidthOfString(rfbFontDataPtr font,const char* string)
+{
+  int i=0;
+  while(*string) {
+    i+=font->metaData[*string*5+1];
+    string++;
+  }
+  return(i);
+}
+
+int rfbWidthOfChar(rfbFontDataPtr font,unsigned char c)
+{
+  return(font->metaData[c*5+1]+font->metaData[c*5+3]);
+}
+
+void rfbFontBBox(rfbFontDataPtr font,unsigned 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];
+}
+
+#ifndef INT_MAX
+#define INT_MAX 0x7fffffff
+#endif
+
+void rfbWholeFontBBox(rfbFontDataPtr font,
+		      int *x1, int *y1, int *x2, int *y2)
+{
+   int i;
+   int* m=font->metaData;
+   
+   (*x1)=(*y1)=INT_MAX; (*x2)=(*y2)=-INT_MAX+1;
+   for(i=0;i<256;i++) {
+      if(m[i*5+1]-m[i*5+3]>(*x2))
+	(*x2)=m[i*5+1]-m[i*5+3];
+      if(-m[i*5+2]+m[i*5+4]<(*y1))
+	(*y1)=-m[i*5+2]+m[i*5+4];
+      if(m[i*5+3]<(*x1))
+	(*x1)=m[i*5+3];
+      if(-m[i*5+4]>(*y2))
+	(*y2)=-m[i*5+4];
+   }
+}
+
+rfbFontDataPtr rfbLoadConsoleFont(char *filename)
+{
+  FILE *f=fopen(filename,"rb");
+  rfbFontDataPtr p;
+  int i;
+
+  if(!f) return(0);
+
+  p=(rfbFontDataPtr)malloc(sizeof(rfbFontData));
+  p->data=(unsigned char*)malloc(4096);
+  if(1!=fread(p->data,4096,1,f)) {
+    free(p->data);
+    free(p);
+    return(0);
+  }
+  fclose(f);
+  p->metaData=(int*)malloc(256*5*sizeof(int));
+  for(i=0;i<256;i++) {
+    p->metaData[i*5+0]=i*16; /* offset */
+    p->metaData[i*5+1]=8; /* width */
+    p->metaData[i*5+2]=16; /* height */
+    p->metaData[i*5+3]=0; /* xhot */
+    p->metaData[i*5+4]=0; /* yhot */
+  }
+  return(p);
+}
+
+void rfbFreeFont(rfbFontDataPtr f)
+{
+  free(f->data);
+  free(f->metaData);
+  free(f);
+}