KolibriOS/kolibrios
12
4
Fork 12
Code Issues 78 Pull Requests 5 Projects Releases Activity

Separate original stb_truetype.h from kolibri library code, updated stb_truetype to version 1.02, added utf8 support for library functions, added compile.bat for windows users.

Browse Source 
git-svn-id: svn://kolibrios.org@5517 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2015-03-13 20:23:29 +00:00
parent e2f24f546c
commit c0c80a0aca
5 changed files with 3213 additions and 2698 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
programs/develop/libraries/truetype/trunk/compile.bat Normal file
View File

@ -0,0 +1,3 @@
@echo off
gcc -c truetype.c -o truetype.obj -O2 -nostdlib
pause

315
programs/develop/libraries/truetype/trunk/glue.h Normal file
View File

@ -0,0 +1,315 @@
#define NULL 0
typedef unsigned int size_t;
// sort
#define THRESH 4 /* threshold for insertion */
#define MTHRESH 6 /* threshold for median */
static int (*qcmp)(const void *, const void *); /* the comparison routine */
static int qsz; /* size of each record */
static int thresh; /* THRESHold in chars */
static int mthresh; /* MTHRESHold in chars */
/*
* qst:
* Do a quicksort
* First, find the median element, and put that one in the first place as the
* discriminator. (This "median" is just the median of the first, last and
* middle elements). (Using this median instead of the first element is a big
* win). Then, the usual partitioning/swapping, followed by moving the
* discriminator into the right place. Then, figure out the sizes of the two
* partions, do the smaller one recursively and the larger one via a repeat of
* this code. Stopping when there are less than THRESH elements in a partition
* and cleaning up with an insertion sort (in our caller) is a huge win.
* All data swaps are done in-line, which is space-losing but time-saving.
* (And there are only three places where this is done).
*/
static void qst(char *base, char *max)
{
char c, *i, *j, *jj;
int ii;
char *mid, *tmp;
int lo, hi;
/*
* At the top here, lo is the number of characters of elements in the
* current partition. (Which should be max - base).
* Find the median of the first, last, and middle element and make
* that the middle element. Set j to largest of first and middle.
* If max is larger than that guy, then it's that guy, else compare
* max with loser of first and take larger. Things are set up to
* prefer the middle, then the first in case of ties.
*/
lo = max - base; /* number of elements as chars */
do {
mid = i = base + qsz * ((lo / qsz) >> 1);
if (lo >= mthresh)
{
j = (qcmp((jj = base), i) > 0 ? jj : i);
if (qcmp(j, (tmp = max - qsz)) > 0)
{
/* switch to first loser */
j = (j == jj ? i : jj);
if (qcmp(j, tmp) < 0)
j = tmp;
}
if (j != i)
{
ii = qsz;
do {
c = *i;
*i++ = *j;
*j++ = c;
} while (--ii);
}
}
/*
* Semi-standard quicksort partitioning/swapping
*/
for (i = base, j = max - qsz; ; )
{
while (i < mid && qcmp(i, mid) <= 0)
i += qsz;
while (j > mid)
{
if (qcmp(mid, j) <= 0)
{
j -= qsz;
continue;
}
tmp = i + qsz; /* value of i after swap */
if (i == mid)
{
/* j <-> mid, new mid is j */
mid = jj = j;
}
else
{
/* i <-> j */
jj = j;
j -= qsz;
}
goto swap;
}
if (i == mid)
{
break;
}
else
{
/* i <-> mid, new mid is i */
jj = mid;
tmp = mid = i; /* value of i after swap */
j -= qsz;
}
swap:
ii = qsz;
do {
c = *i;
*i++ = *jj;
*jj++ = c;
} while (--ii);
i = tmp;
}
/*
* Look at sizes of the two partitions, do the smaller
* one first by recursion, then do the larger one by
* making sure lo is its size, base and max are update
* correctly, and branching back. But only repeat
* (recursively or by branching) if the partition is
* of at least size THRESH.
*/
i = (j = mid) + qsz;
if ((lo = j - base) <= (hi = max - i))
{
if (lo >= thresh)
qst(base, j);
base = i;
lo = hi;
}
else
{
if (hi >= thresh)
qst(i, max);
max = j;
}
} while (lo >= thresh);
}
/*
* qsort:
* First, set up some global parameters for qst to share. Then, quicksort
* with qst(), and then a cleanup insertion sort ourselves. Sound simple?
* It's not...
*/
void qsort_g(void *base0, size_t n, size_t size, int (*compar)(const void *, const void *))
{
char *base = (char *)base0;
char c, *i, *j, *lo, *hi;
char *min, *max;
if (n <= 1)
return;
qsz = size;
qcmp = compar;
thresh = qsz * THRESH;
mthresh = qsz * MTHRESH;
max = base + n * qsz;
if (n >= THRESH)
{
qst(base, max);
hi = base + thresh;
}
else
{
hi = max;
}
/*
* First put smallest element, which must be in the first THRESH, in
* the first position as a sentinel. This is done just by searching
* the first THRESH elements (or the first n if n < THRESH), finding
* the min, and swapping it into the first position.
*/
for (j = lo = base; (lo += qsz) < hi; )
if (qcmp(j, lo) > 0)
j = lo;
if (j != base)
{
/* swap j into place */
for (i = base, hi = base + qsz; i < hi; )
{
c = *j;
*j++ = *i;
*i++ = c;
}
}
/*
* With our sentinel in place, we now run the following hyper-fast
* insertion sort. For each remaining element, min, from [1] to [n-1],
* set hi to the index of the element AFTER which this one goes.
* Then, do the standard insertion sort shift on a character at a time
* basis for each element in the frob.
*/
for (min = base; (hi = min += qsz) < max; )
{
while (qcmp(hi -= qsz, min) > 0)
/* void */;
if ((hi += qsz) != min) {
for (lo = min + qsz; --lo >= min; )
{
c = *lo;
for (i = j = lo; (j -= qsz) >= hi; i = j)
*i = *j;
*i = c;
}
}
}
}
#define STBTT_sort(data,num_items,item_size,compare_func) qsort_g(data,num_items,item_size,compare_func)
asm ("_floor: \n\t"
"pushl %ebp\n\t"
"movl %esp,%ebp\n\t"
"subl $8,%esp\n\t"
"fstcw -4(%ebp)\n\t"
"fwait\n\t"
"movw -4(%ebp),%ax\n\t"
"andw $0xf3ff,%ax\n\t"
"orw $0x0400,%ax\n\t"
"movw %ax,-2(%ebp)\n\t"
"fldcw -2(%ebp)\n\t"
"fldl 8(%ebp)\n\t"
"frndint\n\t"
"fldcw -4(%ebp)\n\t"
"movl %ebp,%esp\n\t"
"popl %ebp\n\t"
"ret");
int i_floor (float x) {
int z;
z=x;
if (z+1>x) {return z;} else {return (z+1);}
}
int i_ceil (float x) {
int z;
z=x;
if (z>x) {return z;} else {return (z+1);}
}
double sqrt (double x)
{
if (x < 0.0F )
{
return -1;
}
else
{
double res;
asm ("fsqrt" : "=t" (res) : "0" (x));
return res;
}
}
#define STBTT_ifloor(x) ((int) i_floor(x))
#define STBTT_iceil(x) ((int) i_ceil(x))
static inline void *zmalloc(size_t size) {
void *val;
__asm__ __volatile__( "int $0x40":"=a"(val):"a"(68),"b"(12),"c"(size));
return val;
}
static inline void zfree(void *p)
{
size_t foo;
asm volatile ("int $0x40":"=a"(foo):"a"(68), "b"(13), "c"(p));
return;
}
#define STBTT_malloc(x,u) zmalloc(x)
#define STBTT_free(x,u) zfree(x)
#define assert_g(ignore)((void) 0)
#define STBTT_assert(x) assert_g(x)
int strlen_g(const char* string)
{
int i;
i=0;
while (*string++) i++;
return i;
}
#define STBTT_strlen(x) strlen_g(x)
void* zmemset(void *mem, int c, unsigned size)
{
unsigned i;
for ( i = 0; i < size; i++ )
*((char *)mem+i) = (char) c;
return 0;
}
void* zmemcpy(void *dst, const void *src, unsigned size)
{
unsigned i;
for ( i = 0; i < size; i++)
*(char *)(dst+i) = *(char *)(src+i);
return 0;
}
#define STBTT_memcpy zmemcpy
#define STBTT_memset zmemset

320
programs/develop/libraries/truetype/trunk/lib.c
View File

@ -1,320 +0,0 @@
#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate implementation
#include "stb.h"
#include "font_droid.h"
#define __stdcall __attribute__((stdcall))
inline void getzone(unsigned int x, unsigned int y, unsigned int w, unsigned int h, char * image)
{
unsigned size, psize;
size=x*65536+y;
psize=w*65536+h;
__asm__ __volatile__("int $0x40"::"a"(36),"b"(image),"c"(psize),"d"(size));
}
// inline void f65(unsigned x, unsigned y, unsigned w, unsigned h, char *d)
//{
//asm("pusha");
//asm ("nop"::"D"(0), "c"(w*65536+h), "d"(x*65536+y), "b"(d));
//asm ("xor %eax, %eax");
//asm ("movl %eax, %ebp");
//asm ("pushl $24");
//asm ("popl %esi");
//asm ("int $0x40"::"a"(65));
//asm("popa");
//}
inline void PutImage(unsigned x, unsigned y, unsigned w, unsigned h, char * image)
{
unsigned size, psize;
size=x*65536+y;
psize=w*65536+h;
__asm__ __volatile__("int $0x40"::"a"(7),"b"(image),"c"(psize),"d"(size));
}
void kputc(char *c)
{
asm ("int $0x40"::"a"(63), "b"(1), "c"(c));
}
void kol_board_puti(int n)
{
char c;
int i = 0;
do
{
if (n<0) {n=-n;kputc("-");}
c = n % 10 + '0';
asm ("int $0x40"::"a"(63), "b"(1), "c"(c));
i++;
}
while ((n /= 10) > 0);
}
void font_blit(unsigned char *dst,unsigned char *src, int x, int size) {
int lp;
float mixed, tp;
unsigned char color1;
int color2, color3, color4;
color2=((x)&0x000000FF);
color3=((((x)&0x00FF00)>>8)&0xFF);
color4=((((x)&0xFF0000)>>16)&0xFF);
//kol_board_puti(size);
for (lp=0;lp <= size;lp++) {
//kol_board_puti(lp);
//kputc("\n");
if (src[lp]>0) {
tp=((float)src[lp])/255;
color1=dst[lp*3];
mixed=(color1 * (1-tp)+color2 * tp);
dst[lp*3]=(unsigned char) mixed;
color1=dst[lp*3+1];
mixed=(color1 * (1-tp)+color3 * tp);
dst[lp*3+1]=(unsigned char) mixed;
color1=dst[lp*3+2];
mixed=(color1 * (1-tp)+color4 * tp);
dst[lp*3+2]=(unsigned char) mixed;
}
}
}
inline unsigned kol_process_info(unsigned slot, char buf1k[])
{
asm ("int $0x40"::"a"(9), "b"(buf1k), "c"(slot));
}
void kol_board_puts(char *s)
{
unsigned i;
i = 0;
while (*(s+i))
{
asm ("int $0x40"::"a"(63),"b"(1),"c"(*(s+i)));
i++;
}
}
int dos2utf (unsigned char some){
int same;
if (some>=0x80 && some <=0xAF) {same=(4<<8)+some-0x70;}
else if (some>=0xE0 && some <=0xEF) {same=(4<<8)+some-0xA0;}
else {same=some;}
return same;
}
//unsigned char screen[40*160];
int __stdcall get_width(char *text, char *buffer, int height)
{
stbtt_fontinfo font;
int i,j,ascent,baseline,ch,xpos=0;
float scale=0;
baseline=10;
if (buffer==-1) {stbtt_InitFont(&font, pdf_font_DroidSans,stbtt_GetFontOffsetForIndex(pdf_font_DroidSans,0) );} else {stbtt_InitFont(&font, buffer,stbtt_GetFontOffsetForIndex(buffer,0) );kol_board_puts("Font loaded..\n");}
kol_board_puts("Engine init..\n");
//kol_board_puti(&screen);
scale = stbtt_ScaleForPixelHeight(&font, height*3/4);
int advance,lsb;
while (dos2utf(text[ch])) {
// kol_board_puts("new symbol...\n");
stbtt_GetCodepointHMetrics(&font, dos2utf(text[ch]), &advance, &lsb);
xpos += (advance * scale);
if (text[ch+1])
xpos += scale*stbtt_GetCodepointKernAdvance(&font, dos2utf(text[ch]),dos2utf(text[ch+1]));
++ch;
}
stbtt_GetCodepointHMetrics(&font, dos2utf(text[ch]), &advance, &lsb);
xpos += (advance * scale);
return xpos;
}
int __stdcall get_length(char *text, char *buffer, int height, int max_len)
{
stbtt_fontinfo font;
int i,j,ascent,baseline,ch,xpos=0;
float scale=0;
baseline=10;
if (buffer==-1) {stbtt_InitFont(&font, pdf_font_DroidSans,stbtt_GetFontOffsetForIndex(pdf_font_DroidSans,0) );} else {stbtt_InitFont(&font, buffer,stbtt_GetFontOffsetForIndex(buffer,0) );kol_board_puts("Font loaded..\n");}
//kol_board_puts("Engine init..\n");
//kol_board_puti(&screen);
scale = stbtt_ScaleForPixelHeight(&font, height*3/4);
while (dos2utf(text[ch])) {
// kol_board_puts("new symbol...\n");
int advance,lsb;
stbtt_GetCodepointHMetrics(&font, dos2utf(text[ch]), &advance, &lsb);
xpos += (advance * scale);
if ((int)xpos>max_len) return ch;
if (text[ch+1])
xpos += scale*stbtt_GetCodepointKernAdvance(&font, dos2utf(text[ch]),dos2utf(text[ch+1]));
++ch;
}
return ch;
}
int __stdcall picture(char *text, char *buffer, char *screen1, int width, int height)
{
//unsigned char *screen;
//screen=zmalloc(20*78);
//kol_board_puts(screen);
//kol_board_puts("It was text\n");
stbtt_fontinfo font;
int i,j,ascent,baseline,descent,ch=0;
float scale, xpos=0;
//baseline=10;
kol_board_puts("Font address:\n");
//kol_board_puti(buffer);
if (buffer==-1) {stbtt_InitFont(&font, pdf_font_DroidSans,stbtt_GetFontOffsetForIndex(pdf_font_DroidSans,0) );kol_board_puts("default font\n");} else {stbtt_InitFont(&font, buffer,stbtt_GetFontOffsetForIndex(buffer,0) );kol_board_puts("Font loaded..\n");}
//kol_board_puti(&screen);
scale = stbtt_ScaleForPixelHeight(&font, height*3/4);
//stbtt_GetFontVMetrics(&font, &ascent,0,0);
stbtt_GetFontVMetrics(&font, &ascent,&descent,0); //lev
//baseline = (int) (ascent*scale);
baseline = (int) ((ascent-descent)*scale); //lev
//kol_board_puts("Text render:\n");
while (dos2utf(text[ch])) {
//kol_board_puts("new symbol...\n");
int advance,lsb,x0,y0,x1,y1;
//float x_shift = xpos - (float) i_floor(xpos);
// kol_board_puts("floor called!\n");
stbtt_GetCodepointHMetrics(&font, dos2utf(text[ch]), &advance, &lsb);
stbtt_GetCodepointBitmapBoxSubpixel(&font, dos2utf(text[ch]), scale,scale,0,0, &x0,&y0,&x1,&y1);
//10= y0, 20=y1-y0 or so
stbtt_MakeCodepointBitmapSubpixel(&font, &screen1[(baseline + y0)*width+ (int)xpos + x0], x1-x0,y1-y0, width, scale,scale,0,0, dos2utf(text[ch]));
// note that this stomps the old data, so where character boxes overlap (e.g. 'lj') it's wrong
// because this API is really for baking character bitmaps into textures. if you want to do this,
// you need to render the bitmap to a temp buffer, then\n\t"alpha blend" that into the working buffer
xpos += (advance * scale);
if (text[ch+1])
xpos += scale*stbtt_GetCodepointKernAdvance(&font, dos2utf(text[ch]),dos2utf(text[ch+1]));
++ch;
}
//zmemcpy(screen1,bitmap,20*20);
//kol_board_puts("finished...\n");
return 0;
}
int __stdcall text_out(char *string, char *buffer, int height, int color, int x, int y) {
unsigned char *from_zone;
unsigned char *to_zone;
int px, py;
unsigned char app_data[1024];
int width=0;
//kol_board_puts("width...\n");
//kol_board_puts("\n and now height is ...");
//kol_board_puti(height);
width=get_width(string,buffer,height);
//kol_board_puts("\n Width is ...");
//kol_board_puti(width);
//kol_board_puts(" and height is ...");
//kol_board_puti(height);
//kol_board_puts("\n malloc...\n");
from_zone=(char*)zmalloc(3*height*width);
to_zone=(char*)zmalloc(height*width);
//kol_board_puts("malloc done...\n");
kol_process_info(-1, app_data);
//px=app_data[35]*256+app_data[34];
px=app_data[35]*256+app_data[34]+app_data[55]*256+app_data[54];//lev
//py=app_data[39]*256+app_data[38];
py=app_data[39]*256+app_data[38]+app_data[59]*256+app_data[58];//lev
//kol_board_puts("\nzone...\n");
getzone(px+x, py+y, width, height, from_zone);
//kol_board_puts("render...\n");
picture(string, buffer, to_zone, width, height);
//kol_board_puts("blit...\n");
font_blit(from_zone,to_zone, color, width*height);
//kol_board_puts("out...\n");
//f65(x,y,width,height,from_zone);
PutImage(x,y,width,height,from_zone);//lev
zfree(from_zone);
zfree(to_zone);
return 0;
}
int __stdcall start()
{
return 1;
};
int __stdcall version_major()
{
return 1;
}
int __stdcall version_minor()
{
return 0;
}
typedef struct
{
char *name;
void *f;
}export_t;
char szStart[] ="START";
char szVersion[] ="version";
char szVersionM[] ="version_min";
char szTrueType[] ="truetype";
char szGetLength[]="get_length";
char szGetWidth[] ="get_width";
char szTextOut[] ="text_out";
export_t EXPORTS[] __asm__("EXPORTS") =
{
{ szStart, start },
{ szVersion, version_major },
{ szVersionM, version_minor },
{ szTrueType, picture },
{ szGetLength, get_length},
{ szGetWidth, get_width},
{ szTextOut, text_out },
{ NULL, NULL },
};

962
programs/develop/libraries/truetype/trunk/stb.h → programs/develop/libraries/truetype/trunk/stb_truetype.h
View File

File diff suppressed because it is too large Load Diff

281
programs/develop/libraries/truetype/trunk/truetype.c Normal file
View File

@ -0,0 +1,281 @@
#include "glue.h"
#define STB_TRUETYPE_IMPLEMENTATION // force following include to generate implementation
#include "stb_truetype.h"
#define __stdcall __attribute__((stdcall))
// "Fast and economical" UTF-8 to codepoint decoder by Bjoern Hoehrmann.
// Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de>
// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
#define UTF8_ACCEPT 0
#define UTF8_REJECT 12
static const unsigned char utf8d[] = {
// The first part of the table maps bytes to character classes that
// to reduce the size of the transition table and create bitmasks.
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
// The second part is a transition table that maps a combination
// of a state of the automaton and a character class to a state.
0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
12,36,12,12,12,12,12,12,12,12,12,12,
};
unsigned int inline decode(unsigned int* state, unsigned int* codep, unsigned int byte) {
unsigned int type = utf8d[byte];
*codep = (*state != UTF8_ACCEPT) ?
(byte & 0x3fu) | (*codep << 6) :
(0xff >> type) & (byte);
*state = utf8d[256 + *state + type];
return *state;
}
inline void PutImage(unsigned x, unsigned y, unsigned w, unsigned h, char * image){
unsigned size, psize;
size=x*65536+y;
psize=w*65536+h;
__asm__ __volatile__("int $0x40"::"a"(7),"b"(image),"c"(psize),"d"(size));
}
void font_blit(unsigned char *dst,unsigned char *src, int textcolor, int size) {
int lp;
float mixed, tp;
unsigned char color1;
int red, green, blue;
red=((textcolor)&0x000000FF);
green=(((textcolor)&0x00FF00)>>8);
blue=(((textcolor)&0xFF0000)>>16);
for (lp=0;lp <= size;lp++) {
if (src[lp]>0) {
tp=((float)src[lp])/255;
color1=dst[lp*3];
mixed=(color1 * (1-tp)+red * tp);
dst[lp*3]=(unsigned char) mixed;
color1=dst[lp*3+1];
mixed=(color1 * (1-tp)+green * tp);
dst[lp*3+1]=(unsigned char) mixed;
color1=dst[lp*3+2];
mixed=(color1 * (1-tp)+blue * tp);
dst[lp*3+2]=(unsigned char) mixed;
}
}
}
inline unsigned kol_process_info(unsigned slot, char buf1k[]){
asm ("int $0x40"::"a"(9), "b"(buf1k), "c"(slot));
}
int __stdcall init_font(stbtt_fontinfo *font,unsigned char *FontData)
{
stbtt_InitFont(font, FontData,stbtt_GetFontOffsetForIndex(FontData,0) );
}
int __stdcall get_width_utf8(unsigned char *s, stbtt_fontinfo *buffer, int height)
{
stbtt_fontinfo *font;
font=buffer;
float scale, xpos=0;
unsigned int codepoint;
unsigned int state = 0;
scale = stbtt_ScaleForPixelHeight(font, height*3/4);
int advance,lsb;
for (; *s; s++) {
if (!decode(&state, &codepoint, *s)) {
stbtt_GetCodepointHMetrics(font, codepoint, &advance, &lsb);
xpos += (advance * scale);
}
}
return xpos;
}
int __stdcall get_length_utf8(unsigned char *s, char *buffer, int height, int max_len)
{
stbtt_fontinfo *font;
font=buffer;
int ch=0, xpos=0;
float scale=0;
scale = stbtt_ScaleForPixelHeight(&font, height*3/4);
int advance, lsb;
unsigned int codepoint;
unsigned int state = 0;
for (; s[ch]; ch++) {
if (!decode(&state, &codepoint, s[ch])) {
stbtt_GetCodepointHMetrics(&font, codepoint, &advance, &lsb);
xpos += (advance * scale);
if ((int)xpos>max_len)
return ch;
}
}
return ch;
}
int __stdcall picture_utf8(unsigned char *s, stbtt_fontinfo *buffer, char *screen1, int width, int height)
{
stbtt_fontinfo *font;
font=buffer;
int ascent, baseline, descent;
int advance, lsb, x0, y0, x1, y1;
float scale, xpos=0;
scale = stbtt_ScaleForPixelHeight(font, height*3/4);
stbtt_GetFontVMetrics(font, &ascent, &descent,0);
baseline = (int) ((ascent-descent)*scale);
unsigned int codepoint;
unsigned int state = 0;
for (; *s; s++) {
if (!decode(&state, &codepoint, *s)) {
stbtt_GetCodepointHMetrics(font, codepoint, &advance, &lsb); ///////////////////////////////////
stbtt_GetCodepointBitmapBoxSubpixel(font, codepoint, scale, scale, 0, 0, &x0, &y0, &x1, &y1); ///////////////////////////////////
stbtt_MakeCodepointBitmapSubpixel(font, &screen1[(baseline+y0)*width+(int)xpos+x0], x1-x0, y1-y0, width, scale, scale, 0, 0, codepoint);
xpos += (advance*scale);
}
//if (state != UTF8_ACCEPT)
//kol_board_puts("The string is not well-formed\n");
}
return 0;
}
void __stdcall SetBackColor(int back_color, int width, int height, char *from_zone)
{
int i,j;
unsigned char bcr,bcg,bcb;
bcr=back_color<<16;
bcg=back_color<<8;
bcb=back_color;
for (j=0;j<height ;j++)
{
for (i=0;i<width ;i++)
{
from_zone[(j*width+i)*3]=back_color;
from_zone[(j*width+i)*3+1]=back_color>>8;
from_zone[(j*width+i)*3+2]=back_color>>16;
}
}
}
int __stdcall text_out(char *string, char *buffer, int height, int color,int back_color, int x, int y) {
unsigned char *from_zone;
unsigned char *to_zone;
int px, py;
unsigned char app_data[1024];
int width;
width = get_width_utf8(string,buffer,height);
from_zone=(char*)zmalloc(3*height*width);
to_zone=(char*)zmalloc(height*width);
kol_process_info(-1, app_data);
//px=app_data[35]*256+app_data[34];
px=app_data[35]*256+app_data[34]+app_data[55]*256+app_data[54];//lev
//py=app_data[39]*256+app_data[38];
py=app_data[39]*256+app_data[38]+app_data[59]*256+app_data[58];//lev
//getzone(px+x, py+y, width, height, from_zone);
SetBackColor(back_color, width, height,from_zone);
picture_utf8(string, buffer, to_zone, width, height);
font_blit(from_zone,to_zone, color, width*height);
//f65(x,y,width,height,from_zone);
PutImage(x,y,width,height,from_zone);//lev
zfree(from_zone);
zfree(to_zone);
return 0;
}
unsigned char* __stdcall text_out_mem(short *string, stbtt_fontinfo *buffer, int height, int color,int back_color) {
unsigned char *from_zone;
unsigned char *to_zone;
int width;
width = get_width_utf8(string,buffer,height);
from_zone=(char*)zmalloc(3*height*width+8);
to_zone=(char*)zmalloc(height*width);
*(int*)from_zone = width;
*(int*)(from_zone+4) = height;
SetBackColor(back_color, width, height,from_zone+8);
picture_utf8(string, buffer, to_zone, width, height);
font_blit(from_zone+8, to_zone, color, width*height);
zfree(to_zone);
return from_zone;
}
int __stdcall start(){
return 1;
}
int __stdcall version_major(){
return 1;
}
int __stdcall version_minor(){
return 0;
}
typedef struct{
char *name;
void *f;
}export_t;
char szStart[] ="START";
char szVersion[] ="version";
char szVersionM[] ="version_min";
char szTrueType[] ="truetype";
char szGetLength[] ="get_length";
char szGetWidth[] ="get_width";
char szTextOut[] ="text_out";
char szTextOutMem[] ="text_out_mem";
char szInitFont[] ="init_font";
export_t EXPORTS[] __asm__("EXPORTS") =
{
{ szStart, start },
{ szVersion, version_major },
{ szVersionM, version_minor },
{ szTrueType, picture_utf8 },
{ szGetLength, get_length_utf8},
{ szGetWidth, get_width_utf8},
{ szTextOut, text_out },
{ szTextOutMem, text_out_mem},
{ szInitFont, init_font},
{ NULL, NULL },
};