--- /dev/null
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <X11/Xutil.h>
+#include <X11/Xlib.h>
+#include "libzmpeg3.h"
+
+/* use builtin data, or dynamically load font data from X instead */
+//#define BUILTIN_FONT_DATA
+/* generate static font data code */
+//#define WRITE_FONT_DATA
+#define MAX_SIZE 4
+
+#ifdef WRITE_FONT_DATA
+#undef BUILTIN_FONT_DATA
+#endif
+
+int zbitfont_t::font_refs = 0;
+
+
+static inline int
+font_index(int style, int pen_size, int italics, int size)
+{
+ if( pen_size > 0 ) --pen_size;
+ return ((size*2 + italics)*2 + pen_size)*7 + style;
+}
+
+#if defined(BUILTIN_FONT_DATA)
+/* using static builtin font data */
+
+zbitfont_t *zmpeg3_t::
+bitfont(int style,int pen_size,int italics,int size)
+{
+ int k = font_index(style,pen_size,italics,size);
+ return zbitfont_t::fonts[k];
+}
+
+zbitfont_t *zwin_t::
+chr_font(zchr_t *bp, int scale)
+{
+ int size = bp->font_size + scale-1;
+ return bitfont(bp->font_style,bp->pen_size,bp->italics,size);
+}
+
+/* stubs */
+void zbitfont_t::init_fonts() {}
+void zbitfont_t::destroy_fonts() {}
+
+#else
+/* loading font data on the fly */
+
+static int
+init_xfont(zbitfont_t *font,char *font_name)
+{
+ const char *display_name = ":0";
+ Display *display = XOpenDisplay(display_name);
+ if( !display ) return 1;
+ Font font_id = XLoadFont(display,font_name);
+ int ret = 0;
+ XFontStruct *font_struct = XQueryFont(display,font_id);
+ if( !font_struct ) ret = 1;
+ if( !ret ) {
+ int row_first = font_struct->min_char_or_byte2;
+ int row_last = font_struct->max_char_or_byte2;
+ int row_count = row_last-row_first + 1;
+ int col_first = font_struct->min_byte1;
+ int col_last = font_struct->max_byte1;
+ XCharStruct *per_char = font_struct->per_char;
+ XCharStruct *bounds = per_char == NULL ? NULL : &font_struct->max_bounds;
+ int row_sz, sizeof_data;
+ Screen *screen = DefaultScreenOfDisplay(display);
+ int depth = DefaultDepthOfScreen(screen);
+ Visual *visual = DefaultVisualOfScreen(screen);
+ Window w = DefaultRootWindow(display);
+ font->nch = (col_last-col_first+1) * (row_last-row_first+1);
+ font->chrs = new zbitchar_t[font->nch];
+ font->idx = font->idy = font->imy = 0;
+ int inx = 0, iny = 0;
+
+ XImage *image;
+ Pixmap pixmap;
+ int b1, b2, x, y, n;
+ unsigned int width, height;
+ GC gcb, gcw;
+ XGCValues gcv;
+
+ gcv.function = GXcopy;
+ gcv.line_width = 1;
+ gcv.line_style = LineSolid;
+ gcv.font = font_id;
+ n = GCFunction|GCForeground|GCLineWidth|GCLineStyle|GCFont;
+ gcv.foreground = BlackPixelOfScreen(DefaultScreenOfDisplay(display));
+ gcb = XCreateGC(display,w,n,&gcv);
+ gcv.foreground = WhitePixelOfScreen(DefaultScreenOfDisplay(display));
+ gcw = XCreateGC(display,w,n,&gcv);
+
+ for( b1=col_first; b1<=col_last; ++b1 ) {
+ for( b2=row_first; b2<=row_last; ++b2 ) {
+ int i = (b1-col_first)*row_count + b2-row_first;
+ zbitchar_t *cp = &font->chrs[i];
+ XChar2b ch;
+ ch.byte1 = b1;
+ ch.byte2 = b2;
+ cp->ch = (b1<<8) + b2;
+ if( per_char != NULL )
+ bounds = &per_char[i];
+ cp->left = bounds->lbearing;
+ cp->right = bounds->rbearing;
+ cp->ascent = bounds->ascent;
+ cp->decent = bounds->descent;
+ width = cp->right - cp->left;
+ height = cp->ascent + cp->decent;
+ if( cp->ascent > font->imy ) font->imy = cp->ascent;
+ if( cp->decent > iny ) iny = cp->decent;
+ row_sz = (width+7) / 8;
+ sizeof_data = row_sz * height;
+ if( sizeof_data > 0 ) {
+ char *data = (char*)malloc(sizeof_data);
+ if( width > 0 ) { font->idx += width; ++inx; }
+ memset(&data[0],0,sizeof_data);
+ x = -cp->left; y = cp->ascent;
+ pixmap = XCreatePixmap(display,w,width,height,depth);
+ XFillRectangle(display,pixmap,gcb,0,0,width,height);
+ XDrawString16(display,pixmap,gcw,x,y,&ch,1);
+ image = XCreateImage(display,visual,1,XYBitmap,0,
+ data,width,height,8,row_sz);
+ XGetSubImage(display,pixmap,0,0,width,height,1,
+ XYPixmap,image,0,0);
+ cp->bitmap = new uint8_t [sizeof_data];
+ memcpy(&cp->bitmap[0],&data[0],sizeof_data);
+ XFreePixmap(display,pixmap);
+ XDestroyImage(image);
+ }
+ else
+ cp->bitmap = 0;
+ }
+ }
+ XFreeGC(display,gcb);
+ XFreeGC(display,gcw);
+ XFreeFont(display,font_struct);
+ if( inx == 0 ) inx = 1;
+ font->idx = (font->idx + inx-1) / inx;
+ font->idy = font->imy + iny;
+ }
+ XCloseDisplay(display);
+ return ret;
+}
+
+static zbitfont_t *
+get_xfont(int style, int pen_size, int italics, int size)
+{
+ int serif = 0, prop = 0, casual = 0; // fst_default
+ switch( style ) {
+ case 1: serif = 1; prop = 0; casual = 0; break; // fst_mono_serif
+ case 2: serif = 1; prop = 1; casual = 0; break; // fst_prop_serif
+ case 3: serif = 0; prop = 0; casual = 0; break; // fst_mono_sans
+ case 4: serif = 0; prop = 1; casual = 0; break; // fst_prop_sans
+ case 5: serif = 1; prop = 1; casual = 1; break; // fst_casual
+ }
+
+ const char *family, *slant;
+#if 1
+ if( casual ) {
+ family = "adobe-utopia";
+ slant = italics ? "i" : "r";
+ }
+ if( serif == 0 ) {
+ family = prop == 0 ?
+ (slant = italics ? "o" : "r", "urw-nimbus mono l") :
+ (slant = italics ? "i" : "r", "urw-nimbus sans l");
+ }
+ else {
+ family = prop == 0 ?
+ (slant = italics ? "i" : "r", "bitstream-courier 10 pitch"):
+ (slant = italics ? "i" : "r", "bitstream-bitstream charter");
+ }
+#else
+ if( casual ) {
+ family = "bitstream-bitstream vera serif";
+ slant = "r";
+ }
+ if( serif == 0 ) {
+ family = prop == 0 ?
+ (slant = italics ? "o" : "r", "bitstream-bitstream vera sans mono") :
+ (slant = italics ? "o" : "r", "bitstream-bitstream vera sans");
+ }
+ else {
+ family = prop == 0 ?
+ (slant = italics ? "i" : "r", "bitstream-courier 10 pitch"):
+ (slant = italics ? "i" : "r", "bitstream-bitstream charter");
+ }
+#endif
+ const char *wght = pen_size > 1 ? "bold" : "medium";
+
+ // range expanded to account for scale
+ if( size < 0 ) size = 0;
+ if( size > MAX_SIZE ) size = MAX_SIZE;
+ int ptsz = 180;
+ switch( size ) {
+ case 0: ptsz = 48; break; // very fsz_small
+ case 1: ptsz = 100; break; // fsz_small
+ default: case 2: break; // fsz_normal
+ case 3: ptsz = 320; break; // fsz_large
+ case 4: ptsz = 420; break; // very fsz_large
+ };
+
+ char name[512];
+ sprintf(&name[0],"-%s-%s-%s-*-*-*-0-%d-%d-*-*-iso8859-1",
+ family, wght, slant, ptsz, ptsz);
+ zbitfont_t *font = new zbitfont_t();
+ if( init_xfont(font,&name[0]) ) {
+ delete font; font = 0;
+ }
+ return font;
+}
+
+/* italics=2, pen_size=2, font_size=5, font_style=7 */
+int zbitfont_t::total_fonts = 140;
+zbitfont_t *zbitfont_t::fonts[140];
+
+zbitfont_t *zmpeg3_t::
+bitfont(int style,int pen_size,int italics,int size)
+{
+ int k = font_index(style,pen_size,italics,size);
+ bitfont_t *font = bitfont_t::fonts[k];
+ if( !font ) {
+ font = get_xfont(style,pen_size,italics,size);
+ bitfont_t::fonts[k] = font;
+ }
+ return font;
+}
+
+zbitfont_t *zwin_t::
+chr_font(zchr_t *bp, int scale)
+{
+ int size = bp->font_size + scale-1;
+ return bitfont(bp->font_style,bp->pen_size,bp->italics,size);
+}
+
+#if 0
+void zbitfont_t::
+init_fonts()
+{
+ if( !font_refs )
+ for( int i=0; i<total_fonts; ++i ) fonts[i] = 0;
+ ++font_refs;
+}
+
+void zbitfont_t::
+destroy_fonts()
+{
+ if( font_refs > 0 ) --font_refs;
+ if( font_refs > 0 ) return;
+ for( int i=0; i<total_fonts; ++i )
+ if( fonts[i] ) { delete fonts[i]; fonts[i] = 0; }
+}
+#else
+void zbitfont_t::init_fonts() {}
+void zbitfont_t::destroy_fonts() {}
+
+zstatic_init_t::
+static_init_t()
+{
+ for( int i=0; i<total_fonts; ++i ) fonts[i] = 0;
+}
+zstatic_init_t::
+~static_init_t()
+{
+ for( int i=0; i<total_fonts; ++i )
+ if( fonts[i] ) { delete fonts[i]; fonts[i] = 0; }
+}
+
+zstatic_init_t static_init;
+
+#endif
+#endif
+
+#if defined(WRITE_FONT_DATA)
+/* generate code for builtin font initialization */
+
+static int
+write_font(int fno, zbitfont_t *font)
+{
+ char font_var[512];
+
+ sprintf(&font_var[0],"font%02d",fno);
+ printf("#include \"libzmpeg3.h\"\n\n");
+ zbitchar_t *cp = font->chrs;
+ for( int i=0; i<font->nch; ++i,++cp ) {
+ int sizeof_data = (cp->right-cp->left+7)/8 * (cp->ascent+cp->decent);
+ if( sizeof_data > 0 ) {
+ printf("static uint8_t %s_pix%04x[] = {\n",font_var,i);
+ uint8_t *bp = cp->bitmap;
+ int j = 0;
+ while( j < sizeof_data ) {
+ if( (j&7) == 0 ) printf(" ");
+ printf("0x%02x,",*bp++);
+ if( (++j&7) == 0 ) printf("\n");
+ }
+ if( (j&7) != 0 ) printf("\n");
+ printf("};\n");
+ }
+ }
+ printf("\n");
+
+ printf("static zbitchar_t %s_chrs[] = {\n",font_var);
+ cp = font->chrs;
+ for( int i=0; i<font->nch; ++i,++cp ) {
+ printf(" { 0x%04x, %2d, %2d, %2d, %2d, ",
+ cp->ch,cp->left,cp->right,cp->ascent,cp->decent);
+ int sizeof_data = (cp->right-cp->left+7)/8 * (cp->ascent+cp->decent);
+ if( sizeof_data > 0 )
+ printf("&%s_pix%04x[0] },\n",font_var,i);
+ else
+ printf("0 },\n");
+ }
+ printf("};\n");
+ printf("\n");
+
+ printf("static zbitfont_t %s = { &%s_chrs[0], %d, %d, %d, %d, };\n",
+ font_var,font_var,font->nch,font->idx,font->idy,font->imy);
+ printf("\n");
+ return 0;
+}
+
+int main(int ac, char **av)
+{
+ int fno = 0;
+ for( int size=0; size<=MAX_SIZE; ++size ) {
+ for( int italics=0; italics<=1; ++italics ) {
+ for( int pen_size=1; pen_size<=2; ++pen_size ) {
+ for( int font_style=0; font_style<=6; ++font_style ) {
+ zbitfont_t *font = get_xfont(font_style, pen_size, italics, size);
+ write_font(++fno, font);
+ delete font;
+ }
+ }
+ }
+ }
+ fno = 0;
+ printf("zbitfont_t *zbitfont_t::fonts[] = {\n");
+ for( int size=0; size<=MAX_SIZE; ++size ) {
+ for( int italics=0; italics<=1; ++italics ) {
+ for( int pen_size=1; pen_size<=2; ++pen_size ) {
+ for( int font_style=0; font_style<=6; ++font_style ) {
+ if( (fno&7) == 0 ) printf(" ");
+ printf("&font%02d,",++fno);
+ if( (fno&7) == 0 ) printf("\n");
+ }
+ }
+ }
+ }
+ if( (fno&7) != 0 ) printf("\n");
+ printf("};\n");
+ printf("\n");
+ printf("int zbitfont_t::total_fonts = %d;\n",fno);
+ printf("\n");
+ return 0;
+}
+
+#endif
+
+#if 0
+/* attach to end of output for testing */
+int main(int ac, char **av)
+{
+ int sz = 0;
+ for( int i=0; i<zbitfont_t::total_fonts; ++i ) {
+ zbitfont_t *font = zbitfont_t::fonts[i];
+ for( int ch=0; ch<font->nch; ++ch ) {
+ zbitchar_t *cp = &font->chrs[ch];
+ sz += 16 + (cp->ascent+cp->decent)*((cp->right-cp->left+7)/8);
+ }
+ sz += 20;
+ }
+ printf(" %d bytes\n",sz);
+ zbitchar_t *cp = &font84.chrs['y'];
+ uint8_t *bmap = cp->bitmap;
+ int wd = cp->right - cp->left;
+ int ht = cp->ascent + cp->decent;
+ int wsz = (wd+7) / 8;
+ for( int iy=0; iy<ht; ++iy ) {
+ uint8_t *row = &bmap[iy*wsz];
+ for( int ix=0; ix<wd; ++ix ) {
+ int ch = ((row[ix>>3] >> (ix&7)) & 1) ? 'x' : ' ';
+ printf("%c",ch);
+ }
+ printf("\n");
+ }
+ return 0;
+}
+#endif
projects / goodguy / history.git / blobdiff