merge
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Russ Cox
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9b4a2324d3
13 changed files with 1140 additions and 7 deletions
292
src/cmd/fontsrv/osx.c
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292
src/cmd/fontsrv/osx.c
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#include <u.h>
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#define Point OSXPoint
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#define Rect OSXRect
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#define Cursor OSXCursor
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#include <Carbon/Carbon.h>
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#undef Rect
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#undef Point
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#undef Cursor
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#undef offsetof
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#undef nil
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#include <libc.h>
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#include <draw.h>
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#include <memdraw.h>
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#include "a.h"
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extern void CGFontGetGlyphsForUnichars(CGFontRef, const UniChar[], const CGGlyph[], size_t);
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char*
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mac2c(CFStringRef s)
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{
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char *p;
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int n;
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n = CFStringGetLength(s)*8;
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p = malloc(n);
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CFStringGetCString(s, p, n, kCFStringEncodingUTF8);
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return p;
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}
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CFStringRef
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c2mac(char *p)
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{
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return CFStringCreateWithBytes(nil, (uchar*)p, strlen(p), kCFStringEncodingUTF8, false);
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}
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Rectangle
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mac2r(CGRect r, int size, int unit)
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{
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Rectangle rr;
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rr.min.x = r.origin.x*size/unit;
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rr.min.y = r.origin.y*size/unit;
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rr.max.x = (r.origin.x+r.size.width)*size/unit + 0.99999999;
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rr.max.y = (r.origin.x+r.size.width)*size/unit + 0.99999999;
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return rr;
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}
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void
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loadfonts(void)
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{
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int i, n;
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CTFontCollectionRef allc;
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CFArrayRef array;
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CFStringRef s;
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CTFontDescriptorRef f;
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allc = CTFontCollectionCreateFromAvailableFonts(0);
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array = CTFontCollectionCreateMatchingFontDescriptors(allc);
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n = CFArrayGetCount(array);
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xfont = emalloc9p(n*sizeof xfont[0]);
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for(i=0; i<n; i++) {
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f = (void*)CFArrayGetValueAtIndex(array, i);
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if(f == nil)
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continue;
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s = CTFontDescriptorCopyAttribute(f, kCTFontNameAttribute);
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xfont[nxfont].name = mac2c(s);
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CFRelease(s);
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nxfont++;
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}
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}
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CGRect
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subfontbbox(CGFontRef font, int lo, int hi)
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{
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int i, first;
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CGRect bbox;
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bbox.origin.x = 0;
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bbox.origin.y = 0;
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bbox.size.height = 0;
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bbox.size.width = 0;
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first = 1;
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for(i=lo; i<=hi; i++) {
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UniChar u;
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CGGlyph g;
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CGRect r;
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u = i;
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CGFontGetGlyphsForUnichars(font, &u, &g, 1);
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if(g == 0 || !CGFontGetGlyphBBoxes(font, &g, 1, &r))
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continue;
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r.size.width += r.origin.x;
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r.size.height += r.origin.y;
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if(first) {
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bbox = r;
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first = 0;
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continue;
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}
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if(bbox.origin.x > r.origin.x)
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bbox.origin.x = r.origin.x;
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if(bbox.origin.y > r.origin.y)
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bbox.origin.y = r.origin.y;
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if(bbox.size.width < r.size.width)
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bbox.size.width = r.size.width;
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if(bbox.size.height < r.size.height)
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bbox.size.height = r.size.height;
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}
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bbox.size.width -= bbox.origin.x;
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bbox.size.height -= bbox.origin.y;
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return bbox;
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}
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void
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load(XFont *f)
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{
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int i, j;
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CGFontRef font;
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CFStringRef s;
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UniChar u[256];
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CGGlyph g[256];
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CGRect bbox;
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if(f->loaded)
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return;
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f->loaded = 1;
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s = c2mac(f->name);
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font = CGFontCreateWithFontName(s);
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CFRelease(s);
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if(font == nil)
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return;
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// assume bbox gives latin1 is height/ascent for all
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bbox = subfontbbox(font, 0x00, 0xff);
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f->unit = CGFontGetUnitsPerEm(font);
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f->height = bbox.size.height;
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f->originy = bbox.origin.y;
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// figure out where the letters are
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for(i=0; i<0xffff; i+=0x100) {
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for(j=0; j<0x100; j++) {
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u[j] = i+j;
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g[j] = 0;
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}
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CGFontGetGlyphsForUnichars(font, u, g, 256);
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for(j=0; j<0x100; j++) {
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if(g[j] != 0) {
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f->range[i>>8] = 1;
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f->nrange++;
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break;
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}
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}
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}
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CFRelease(font);
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}
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Memsubfont*
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mksubfont(char *name, int lo, int hi, int size, int antialias)
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{
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CFStringRef s;
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CGColorSpaceRef color;
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CGContextRef ctxt;
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CGFontRef font;
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CGRect bbox;
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Memimage *m, *mc, *m1;
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int x, y, y0;
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int i, unit;
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Fontchar *fc, *fc0;
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Memsubfont *sf;
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s = c2mac(name);
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font = CGFontCreateWithFontName(s);
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CFRelease(s);
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if(font == nil)
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return nil;
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bbox = subfontbbox(font, lo, hi);
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unit = CGFontGetUnitsPerEm(font);
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x = (int)(bbox.size.width * size / unit + 0.99999999);
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y = bbox.size.height * size/unit + 0.99999999;
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y0 = (int)(-bbox.origin.y * size/unit + 0.99999999);
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m = allocmemimage(Rect(0, 0, x*(hi+1-lo), y), GREY8);
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if(m == nil)
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return nil;
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mc = allocmemimage(Rect(0, 0, x, y), GREY8);
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if(mc == nil)
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return nil;
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memfillcolor(m, DBlack);
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memfillcolor(mc, DBlack);
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fc = malloc((hi+2 - lo) * sizeof fc[0]);
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sf = malloc(sizeof *sf);
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if(fc == nil || sf == nil) {
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freememimage(m);
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freememimage(mc);
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free(fc);
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free(sf);
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return nil;
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}
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fc0 = fc;
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color = CGColorSpaceCreateWithName(kCGColorSpaceGenericGray);
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ctxt = CGBitmapContextCreate(byteaddr(mc, mc->r.min), Dx(mc->r), Dy(mc->r), 8,
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mc->width*sizeof(u32int), color, kCGImageAlphaNone);
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CGColorSpaceRelease(color);
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if(ctxt == nil) {
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freememimage(m);
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freememimage(mc);
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free(fc);
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free(sf);
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return nil;
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}
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CGContextSetFont(ctxt, font);
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CGContextSetFontSize(ctxt, size);
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CGContextSetAllowsAntialiasing(ctxt, antialias);
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CGContextSetRGBFillColor(ctxt, 1, 1, 1, 1);
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CGContextSetTextPosition(ctxt, 0, 0); // XXX
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x = 0;
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for(i=lo; i<=hi; i++, fc++) {
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UniChar u[2];
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CGGlyph g[2];
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CGRect r[2];
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CGPoint p1;
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int n;
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fc->x = x;
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fc->top = 0;
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fc->bottom = Dy(m->r);
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n = 0;
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u[n++] = i;
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if(0) // debugging
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u[n++] = '|';
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g[0] = 0;
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CGFontGetGlyphsForUnichars(font, u, g, n);
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if(g[0] == 0 || !CGFontGetGlyphBBoxes(font, g, n, r)) {
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None:
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fc->width = 0;
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if(i == 0) {
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Point p;
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Fontchar *i;
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p = Pt(x, y0);
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// memimagestring(m, p, memwhite, ZP, defont, peterface);
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i = defont->info + 0;
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memdraw(m, Rect(p.x+i->left, p.y+i->top, p.x+i->left+(i[1].x-i[0].x), p.y+i->bottom),
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memwhite, ZP, defont->bits, Pt(i->x, i->top), S);
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p.x += i->width;
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fc->left = i->left;
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fc->width = i->width;
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x = p.x;
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}
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continue;
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}
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memfillcolor(mc, DBlack);
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CGContextSetTextPosition(ctxt, 0, y0);
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CGContextShowGlyphs(ctxt, g, n);
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p1 = CGContextGetTextPosition(ctxt);
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if(p1.x <= 0)
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goto None;
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memimagedraw(m, Rect(x, 0, x + p1.x, y), mc, ZP, memopaque, ZP, S);
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fc->width = p1.x;
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fc->left = 0;
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x += p1.x;
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}
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fc->x = x;
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// round up to 32-bit boundary
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// so that in-memory data is same
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// layout as in-file data.
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if(antialias)
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x += -x & 3;
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else
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x += -x & 31;
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m1 = allocmemimage(Rect(0, 0, x, y), antialias ? GREY8 : GREY1);
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memimagedraw(m1, m1->r, m, m->r.min, memopaque, ZP, S);
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freememimage(m);
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sf->name = nil;
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sf->n = hi+1 - lo;
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sf->height = Dy(m1->r);
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sf->ascent = Dy(m1->r) - y0;
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sf->info = fc0;
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sf->bits = m1;
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return sf;
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}
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