mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-11-27 06:02:16 +00:00
a80214290d
Rewrote much of the console code. Should be no obvious differences. Nearly all conchar parsing goes via a single function. Still some left in the dedicated server code. Added the ability to parse utf-8 text, disabled by default. Added the ability to input unicode chars using whatever keymap the user has set up in windows (not enabled by default). Reworked vbo stuff to be a little more versatile. Added toggle console command. Added freetype2 support (not compiled by default). git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@3234 fc73d0e0-1445-4013-8a0c-d673dee63da5
516 lines
12 KiB
C
516 lines
12 KiB
C
#include "quakedef.h"
|
|
|
|
#ifdef AVAIL_FREETYPE
|
|
#include "glquake.h"
|
|
|
|
#pragma comment(lib, "../libs/freetype2/objs/freetype239.lib")
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
|
|
static FT_Library fontlib;
|
|
|
|
#define FONTCHARS (1<<16)
|
|
#define FONTPLANES (1<<2) //no more than 16 textures per font
|
|
#define PLANEIDXTYPE unsigned char
|
|
#define CHARIDXTYPE unsigned short
|
|
|
|
#define INVALIDPLANE ((1<<(8*sizeof(PLANEIDXTYPE)))-1)
|
|
#define PLANEWIDTH (1<<8)
|
|
#define PLANEHEIGHT PLANEWIDTH
|
|
|
|
|
|
|
|
#define GEN_CONCHAR_GLYPHS 0 //set to 0 or 1 to define whether to generate glyphs from conchars too, or if it should just draw them as glquake always used to
|
|
extern cvar_t cl_noblink;
|
|
|
|
|
|
|
|
typedef struct font_s
|
|
{
|
|
struct charcache_s
|
|
{
|
|
struct charcache_s *nextchar;
|
|
PLANEIDXTYPE texplane;
|
|
unsigned char bmx;
|
|
unsigned char bmy;
|
|
unsigned char bmw;
|
|
unsigned char bmh;
|
|
short top;
|
|
short left;
|
|
unsigned char advance; //how wide this char is, when drawn
|
|
char pad;
|
|
} chars[FONTCHARS];
|
|
|
|
short charheight;
|
|
|
|
FT_Face face;
|
|
} font_t;
|
|
|
|
typedef struct {
|
|
int texnum[FONTPLANES];
|
|
unsigned char plane[PLANEWIDTH*PLANEHEIGHT][4]; //tracks the current plane
|
|
PLANEIDXTYPE activeplane;
|
|
unsigned char planerowx;
|
|
unsigned char planerowy;
|
|
unsigned char planerowh;
|
|
qboolean planechanged;
|
|
|
|
struct charcache_s *oldestchar;
|
|
struct charcache_s *newestchar;
|
|
} fontplanes_t;
|
|
|
|
static fontplanes_t fontplanes;
|
|
|
|
void Font_Shutdown(void)
|
|
{
|
|
int i;
|
|
for (i = 0; i < FONTPLANES; i++)
|
|
fontplanes.texnum[i] = 0;
|
|
fontplanes.activeplane = 0;
|
|
fontplanes.oldestchar = NULL;
|
|
fontplanes.newestchar = NULL;
|
|
fontplanes.planechanged = 0;
|
|
fontplanes.planerowx = 0;
|
|
fontplanes.planerowy = 0;
|
|
fontplanes.planerowh = 0;
|
|
}
|
|
|
|
void Font_FlushPlane(font_t *f)
|
|
{
|
|
/*
|
|
assumption:
|
|
oldest chars must be of the oldest plane
|
|
*/
|
|
if (fontplanes.planechanged)
|
|
{
|
|
GL_Bind(fontplanes.texnum[fontplanes.activeplane]);
|
|
GL_Upload32(NULL, (void*)fontplanes.plane, PLANEWIDTH, PLANEHEIGHT, false, true);
|
|
fontplanes.planechanged = false;
|
|
}
|
|
|
|
fontplanes.activeplane++;
|
|
fontplanes.activeplane = fontplanes.activeplane % FONTPLANES;
|
|
fontplanes.planerowh = 0;
|
|
fontplanes.planerowx = 0;
|
|
fontplanes.planerowy = 0;
|
|
for (; fontplanes.oldestchar; fontplanes.oldestchar = fontplanes.oldestchar->nextchar)
|
|
{
|
|
if (fontplanes.oldestchar->texplane != fontplanes.activeplane)
|
|
break;
|
|
|
|
//invalidate it
|
|
fontplanes.oldestchar->texplane = INVALIDPLANE;
|
|
}
|
|
if (!fontplanes.oldestchar)
|
|
fontplanes.newestchar = NULL;
|
|
}
|
|
|
|
struct charcache_s *Font_GetChar(font_t *f, CHARIDXTYPE charidx)
|
|
{
|
|
struct charcache_s *c = &f->chars[charidx];
|
|
if (c->texplane == INVALIDPLANE)
|
|
{
|
|
//not cached, can't get.
|
|
return NULL;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
struct charcache_s *Font_LoadGlyphData(font_t *f, CHARIDXTYPE charidx, int alphaonly, void *data, unsigned char bmw, unsigned char bmh, unsigned int pitch)
|
|
{
|
|
int x, y;
|
|
unsigned char *out;
|
|
struct charcache_s *c = &f->chars[charidx];
|
|
|
|
if (fontplanes.planerowx + (int)bmw >= PLANEWIDTH)
|
|
{
|
|
fontplanes.planerowx = 0;
|
|
fontplanes.planerowy += fontplanes.planerowh;
|
|
fontplanes.planerowh = 0;
|
|
}
|
|
|
|
if (fontplanes.planerowy+(int)bmh >= PLANEHEIGHT)
|
|
Font_FlushPlane(f);
|
|
|
|
if (fontplanes.newestchar)
|
|
fontplanes.newestchar->nextchar = c;
|
|
else
|
|
fontplanes.oldestchar = c;
|
|
fontplanes.newestchar = c;
|
|
c->nextchar = NULL;
|
|
|
|
c->texplane = fontplanes.activeplane;
|
|
c->bmx = fontplanes.planerowx;
|
|
c->bmy = fontplanes.planerowy;
|
|
c->bmw = bmw;
|
|
c->bmh = bmh;
|
|
|
|
if (fontplanes.planerowh < (int)bmh)
|
|
fontplanes.planerowh = bmh;
|
|
fontplanes.planerowx += bmw;
|
|
|
|
out = (unsigned char *)&fontplanes.plane[c->bmx+(int)c->bmy*PLANEHEIGHT];
|
|
if (alphaonly)
|
|
{
|
|
for (y = 0; y < bmh; y++)
|
|
{
|
|
for (x = 0; x < bmw; x++)
|
|
{
|
|
*(unsigned int *)&out[x*4] = 0xffffffff;
|
|
out[x*4+3] = ((unsigned char*)data)[x];
|
|
}
|
|
data = (char*)data + pitch;
|
|
out += PLANEWIDTH*4;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
pitch*=4;
|
|
for (y = 0; y < bmh; y++)
|
|
{
|
|
for (x = 0; x < bmw; x++)
|
|
{
|
|
((unsigned int*)out)[x] = ((unsigned int*)data)[x];
|
|
}
|
|
data = (char*)data + pitch;
|
|
out += PLANEWIDTH*4;
|
|
}
|
|
}
|
|
fontplanes.planechanged = true;
|
|
return c;
|
|
}
|
|
|
|
struct charcache_s *Font_TryLoadGlyph(font_t *f, CHARIDXTYPE charidx)
|
|
{
|
|
struct charcache_s *c;
|
|
FT_GlyphSlot slot;
|
|
FT_Bitmap *bm;
|
|
|
|
#if GEN_CONCHAR_GLYPHS != 0
|
|
if (charidx >= 0xe000 && charidx <= 0xe0ff && draw_chars)
|
|
{
|
|
int cpos = charidx & 0xff;
|
|
unsigned int img[64*64], *d;
|
|
unsigned char *s;
|
|
int scale;
|
|
int x,y, ys;
|
|
if (draw_chars)
|
|
{
|
|
d = img;
|
|
s = draw_chars + 8*(cpos&15)+128*8*(cpos/16);
|
|
|
|
scale = f->charheight/8;
|
|
if (scale < 1)
|
|
scale = 1;
|
|
if (scale > 64/8)
|
|
scale = 64/8;
|
|
|
|
for (y = 0; y < 8; y++)
|
|
{
|
|
for (ys = 0; ys < scale; ys++)
|
|
{
|
|
for (x = 0; x < 8*scale; x++)
|
|
d[x] = d_8to24rgbtable[s[x/scale]];
|
|
d+=8*scale;
|
|
}
|
|
s+=128;
|
|
}
|
|
c = Font_LoadGlyphData(f, charidx, false, img, 8*scale, 8*scale, 8*scale);
|
|
if (c)
|
|
{
|
|
c->advance = 8*scale;
|
|
c->left = 0;
|
|
c->top = 7*scale;
|
|
}
|
|
return c;
|
|
}
|
|
charidx &= 0x7f;
|
|
}
|
|
#endif
|
|
|
|
if (FT_Load_Char(f->face, charidx, FT_LOAD_RENDER))
|
|
return NULL;
|
|
|
|
slot = f->face->glyph;
|
|
bm = &slot->bitmap;
|
|
c = Font_LoadGlyphData(f, charidx, true, bm->buffer, bm->width, bm->rows, bm->pitch);
|
|
|
|
if (c)
|
|
{
|
|
c->advance = slot->advance.x >> 6;
|
|
c->left = slot->bitmap_left;
|
|
c->top = slot->bitmap_top;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
struct font_s *Font_LoadFont(int height, char *fontfilename)
|
|
{
|
|
int i;
|
|
struct font_s *f;
|
|
FT_Face face;
|
|
int error;
|
|
if (!fontlib)
|
|
{
|
|
error = FT_Init_FreeType(&fontlib);
|
|
if (error)
|
|
return NULL;
|
|
}
|
|
|
|
//fixme: use FT_Open_Face eventually
|
|
if (FT_New_Face(fontlib, fontfilename, 0, &face))
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
error = FT_Set_Pixel_Sizes(face, 0, height);
|
|
if (error)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
f = malloc(sizeof(*f));
|
|
memset(f, 0, sizeof(*f));
|
|
f->face = face;
|
|
f->charheight = height;
|
|
fontplanes.texnum[0] = GL_AllocNewTexture();
|
|
fontplanes.texnum[1] = GL_AllocNewTexture();
|
|
fontplanes.texnum[2] = GL_AllocNewTexture();
|
|
fontplanes.texnum[3] = GL_AllocNewTexture();
|
|
|
|
for (i = 0; i < FONTCHARS; i++)
|
|
{
|
|
f->chars[i].texplane = INVALIDPLANE;
|
|
}
|
|
return f;
|
|
}
|
|
|
|
void Font_Free(struct font_s *f)
|
|
{
|
|
FT_Done_Face(f->face);
|
|
free(f);
|
|
}
|
|
|
|
void GLFont_BeginString(struct font_s *font, int vx, int vy, int *px, int *py)
|
|
{
|
|
*px = (vx*glwidth) / (float)vid.width;
|
|
*py = (vy*glheight) / (float)vid.height;
|
|
}
|
|
|
|
int GLFont_CharHeight(struct font_s *font, unsigned int charcode)
|
|
{
|
|
if (!font)
|
|
return 8;
|
|
|
|
return font->charheight;
|
|
}
|
|
|
|
int GLFont_CharWidth(struct font_s *font, unsigned int charcode)
|
|
{
|
|
struct charcache_s *c;
|
|
|
|
if (!font)
|
|
return 8;
|
|
|
|
#if GEN_CONCHAR_GLYPHS == 0
|
|
if ((charcode&CON_CHARMASK) >= 0xe000 && (charcode&CON_CHARMASK) <= 0xe0ff)
|
|
return font->charheight;
|
|
#endif
|
|
|
|
c = Font_GetChar(font, charcode&CON_CHARMASK);
|
|
if (!c)
|
|
{
|
|
c = Font_TryLoadGlyph(font, charcode&CON_CHARMASK);
|
|
if (!c)
|
|
return 0;
|
|
}
|
|
|
|
return c->advance;
|
|
}
|
|
|
|
int GLFont_LineBreaks(struct font_s *font, conchar_t *start, conchar_t *end, int scrwidth, int maxlines, conchar_t **starts, conchar_t **ends)
|
|
{
|
|
int l, bt;
|
|
int px;
|
|
int foundlines = 0;
|
|
|
|
while (start < end)
|
|
{
|
|
// scan the width of the line
|
|
for (px=0, l=0 ; px <= scrwidth;)
|
|
{
|
|
if ((start[l]&CON_CHARMASK) == '\n' || (start+l >= end))
|
|
break;
|
|
l++;
|
|
px += GLFont_CharWidth(font, start[l]);
|
|
}
|
|
//if we did get to the end
|
|
if (px > scrwidth)
|
|
{
|
|
bt = l;
|
|
//backtrack until we find a space
|
|
while(l > 0 && (start[l-1]&CON_CHARMASK)>' ')
|
|
{
|
|
l--;
|
|
}
|
|
if (l == 0 && bt>0)
|
|
l = bt-1;
|
|
px -= GLFont_CharWidth(font, start[l]);
|
|
}
|
|
|
|
starts[foundlines] = start;
|
|
ends[foundlines] = start+l;
|
|
foundlines++;
|
|
if (foundlines == maxlines)
|
|
break;
|
|
|
|
start+=l;
|
|
// for (l=0 ; l<40 && *start && *start != '\n'; l++)
|
|
// start++;
|
|
|
|
if ((*start&CON_CHARMASK) == '\n'||!l)
|
|
start++; // skip the \n
|
|
}
|
|
|
|
return foundlines;
|
|
}
|
|
|
|
void GLDraw_FillRGB (int x, int y, int w, int h, float r, float g, float b);
|
|
int GLFont_DrawChar(struct font_s *font, int px, int py, unsigned int charcode)
|
|
{
|
|
struct charcache_s *c;
|
|
float s0, s1;
|
|
float t0, t1;
|
|
float nextx;
|
|
float sx, sy, sw, sh;
|
|
int col;
|
|
|
|
if (!font)
|
|
return px;
|
|
|
|
#if GEN_CONCHAR_GLYPHS == 0
|
|
if ((charcode&CON_CHARMASK) >= 0xe000 && (charcode&CON_CHARMASK) <= 0xe0ff)
|
|
{
|
|
extern char_texture;
|
|
|
|
if (charcode == 32)
|
|
return px+font->charheight; // space
|
|
|
|
if (charcode & CON_BLINKTEXT)
|
|
{
|
|
if (!cl_noblink.value)
|
|
if ((int)(realtime*3) & 1)
|
|
return px+font->charheight;
|
|
}
|
|
|
|
qglEnable(GL_BLEND);
|
|
qglDisable(GL_ALPHA_TEST);
|
|
|
|
col = (charcode & CON_FGMASK) >> CON_FGSHIFT;
|
|
qglColor4f(consolecolours[col].fr, consolecolours[col].fg, consolecolours[col].fb, (charcode & CON_HALFALPHA)?0.5:1);
|
|
|
|
charcode &= 0xff;
|
|
|
|
sx = ((px)*vid.width) / (float)glwidth;
|
|
sy = ((py+font->charheight/8)*vid.height) / (float)glheight;
|
|
sw = ((font->charheight)*vid.width) / (float)glwidth;
|
|
sh = ((font->charheight)*vid.height) / (float)glheight;
|
|
|
|
col = charcode&15;
|
|
s0 = (float)col/16;
|
|
s1 = (float)(col+1)/16;
|
|
|
|
col = charcode>>4;
|
|
t0 = (float)col/16;
|
|
t1 = (float)(col+1)/16;
|
|
|
|
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
GL_Bind(char_texture);
|
|
|
|
qglBegin(GL_QUADS);
|
|
qglTexCoord2f(s0, t0);
|
|
qglVertex2f(sx, sy);
|
|
qglTexCoord2f(s1, t0);
|
|
qglVertex2f(sx+sw, sy);
|
|
qglTexCoord2f(s1, t1);
|
|
qglVertex2f(sx+sw, sy+sh);
|
|
qglTexCoord2f(s0, t1);
|
|
qglVertex2f(sx, sy+sh);
|
|
qglEnd();
|
|
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
return px+font->charheight;
|
|
}
|
|
#endif
|
|
|
|
c = Font_GetChar(font, charcode&CON_CHARMASK);
|
|
if (!c)
|
|
{
|
|
c = Font_TryLoadGlyph(font, charcode&CON_CHARMASK);
|
|
if (!c)
|
|
return px;
|
|
}
|
|
|
|
nextx = px + c->advance;
|
|
|
|
if (charcode & CON_BLINKTEXT)
|
|
{
|
|
if (!cl_noblink.value)
|
|
if ((int)(realtime*3) & 1)
|
|
return nextx;
|
|
}
|
|
|
|
// draw background
|
|
if (charcode & CON_NONCLEARBG)
|
|
{
|
|
sx = ((px)*vid.width) / (float)glwidth;
|
|
sy = ((py+font->charheight/3)*vid.height) / (float)glheight;
|
|
sw = ((c->advance)*vid.width) / (float)glwidth;
|
|
sh = ((font->charheight)*vid.height) / (float)glheight;
|
|
|
|
col = (charcode & CON_BGMASK) >> CON_BGSHIFT;
|
|
GLDraw_FillRGB(sx, sy, sw, sh, consolecolours[col].fr, consolecolours[col].fg, consolecolours[col].fb);
|
|
}
|
|
|
|
|
|
sx = ((px+c->left)*vid.width) / (float)glwidth;
|
|
sy = ((py+font->charheight-c->top)*vid.height) / (float)glheight;
|
|
sw = ((c->bmw)*vid.width) / (float)glwidth;
|
|
sh = ((c->bmh)*vid.height) / (float)glheight;
|
|
|
|
s0 = (float)c->bmx/PLANEWIDTH;
|
|
t0 = (float)c->bmy/PLANEWIDTH;
|
|
s1 = (float)(c->bmx+c->bmw)/PLANEWIDTH;
|
|
t1 = (float)(c->bmy+c->bmh)/PLANEWIDTH;
|
|
|
|
qglEnable(GL_BLEND);
|
|
qglDisable(GL_ALPHA_TEST);
|
|
|
|
col = (charcode & CON_FGMASK) >> CON_FGSHIFT;
|
|
qglColor4f(consolecolours[col].fr, consolecolours[col].fg, consolecolours[col].fb, (charcode & CON_HALFALPHA)?0.5:1);
|
|
|
|
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
if (fontplanes.planechanged)
|
|
{
|
|
GL_Bind(fontplanes.texnum[fontplanes.activeplane]);
|
|
GL_Upload32(NULL, (void*)fontplanes.plane, PLANEWIDTH, PLANEHEIGHT, false, true);
|
|
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
fontplanes.planechanged = false;
|
|
}
|
|
GL_Bind(fontplanes.texnum[c->texplane]);
|
|
|
|
qglBegin(GL_QUADS);
|
|
qglTexCoord2f(s0, t0);
|
|
qglVertex2f(sx, sy);
|
|
qglTexCoord2f(s1, t0);
|
|
qglVertex2f(sx+sw, sy);
|
|
qglTexCoord2f(s1, t1);
|
|
qglVertex2f(sx+sw, sy+sh);
|
|
qglTexCoord2f(s0, t1);
|
|
qglVertex2f(sx, sy+sh);
|
|
qglEnd();
|
|
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
return nextx;
|
|
}
|
|
#endif
|