cvar_t r_font_disable_freetype = {CVAR_SAVE, "r_font_disable_freetype", "1", "disable freetype support for fonts entirely"};
cvar_t r_font_use_alpha_textures = {CVAR_SAVE, "r_font_use_alpha_textures", "0", "use alpha-textures for font rendering, this should safe memory"};
cvar_t r_font_size_snapping = {CVAR_SAVE, "r_font_size_snapping", "1", "stick to good looking font sizes whenever possible - bad when the mod doesn't support it!"};
-cvar_t r_font_hinting = {CVAR_SAVE, "r_font_hinting", "3", "0 = no hinting, 1 = light autohinting, 2 = full autohinting, 3 = full hinting"};
-cvar_t r_font_antialias = {CVAR_SAVE, "r_font_antialias", "1", "0 = monochrome, 1 = grey" /* , 2 = rgb, 3 = bgr" */};
cvar_t r_font_kerning = {CVAR_SAVE, "r_font_kerning", "1", "Use kerning if available"};
cvar_t developer_font = {CVAR_SAVE, "developer_font", "0", "prints debug messages about fonts"};
/// FreeType library handle
static FT_Library font_ft2lib = NULL;
+#define POSTPROCESS_MAXRADIUS 8
+typedef struct
+{
+ unsigned char *buf, *buf2;
+ int bufsize, bufwidth, bufheight, bufpitch;
+ float blur, outline, shadowx, shadowy, shadowz;
+ int padding_t, padding_b, padding_l, padding_r, blurpadding_lt, blurpadding_rb, outlinepadding_t, outlinepadding_b, outlinepadding_l, outlinepadding_r;
+ unsigned char circlematrix[2*POSTPROCESS_MAXRADIUS+1][2*POSTPROCESS_MAXRADIUS+1];
+ unsigned char gausstable[2*POSTPROCESS_MAXRADIUS+1];
+}
+font_postprocess_t;
+static font_postprocess_t pp;
+
/*
====================
Font_CloseLibrary
font_ft2lib = NULL;
}
Sys_UnloadLibrary (&ft2_dll);
+ pp.buf = NULL;
}
/*
Cvar_RegisterVariable(&r_font_disable_freetype);
Cvar_RegisterVariable(&r_font_use_alpha_textures);
Cvar_RegisterVariable(&r_font_size_snapping);
- Cvar_RegisterVariable(&r_font_hinting);
- Cvar_RegisterVariable(&r_font_antialias);
Cvar_RegisterVariable(&r_font_kerning);
Cvar_RegisterVariable(&developer_font);
// let's open it at startup already
float Font_VirtualToRealSize(float sz)
{
- int vh, vw, si;
+ int vh;
+ //int vw;
+ int si;
float sn;
if(sz < 0)
return sz;
- vw = ((vid.width > 0) ? vid.width : vid_width.value);
+ //vw = ((vid.width > 0) ? vid.width : vid_width.value);
vh = ((vid.height > 0) ? vid.height : vid_height.value);
// now try to scale to our actual size:
sn = sz * vh / vid_conheight.value;
return floor(val / snapwidth + 0.5f) * snapwidth;
}
-static qboolean Font_LoadFile(const char *name, int _face, ft2_font_t *font);
+static qboolean Font_LoadFile(const char *name, int _face, ft2_settings_t *settings, ft2_font_t *font);
static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean check_only);
qboolean Font_LoadFont(const char *name, dp_font_t *dpfnt)
{
break;
}
- if (!Font_LoadFile(name, dpfnt->req_face, ft2))
+ if (!Font_LoadFile(name, dpfnt->req_face, &dpfnt->settings, ft2))
{
if (i >= MAX_FONT_FALLBACKS)
{
Con_Printf("Failed to allocate font for fallback %i of font %s\n", i, name);
break;
}
- if (!Font_LoadFile(dpfnt->fallbacks[i], dpfnt->fallback_faces[i], fb))
+
+ if (!Font_LoadFile(dpfnt->fallbacks[i], dpfnt->fallback_faces[i], &dpfnt->settings, fb))
{
Con_Printf("Failed to allocate font for fallback %i of font %s\n", i, name);
Mem_Free(fb);
return true;
}
-static qboolean Font_LoadFile(const char *name, int _face, ft2_font_t *font)
+static qboolean Font_LoadFile(const char *name, int _face, ft2_settings_t *settings, ft2_font_t *font)
{
size_t namelen;
char filename[MAX_QPATH];
return false;
}
+ font->settings = settings;
+
namelen = strlen(name);
memcpy(filename, name, namelen);
return true;
}
-void Font_Postprocess(unsigned char *imagedata, int pitch, int bpp, int w, int h, int *pad_l, int *pad_r, int *pad_t, int *pad_b)
+void Font_Postprocess_Update(ft2_font_t *fnt, int bpp, int w, int h)
{
+ int needed, x, y;
+ float gausstable[2*POSTPROCESS_MAXRADIUS+1];
+ qboolean need_gauss = (!pp.buf || pp.blur != fnt->settings->blur || pp.shadowz != fnt->settings->shadowz);
+ qboolean need_circle = (!pp.buf || pp.outline != fnt->settings->outline || pp.shadowx != fnt->settings->shadowx || pp.shadowy != fnt->settings->shadowy);
+ pp.blur = fnt->settings->blur;
+ pp.outline = fnt->settings->outline;
+ pp.shadowx = fnt->settings->shadowx;
+ pp.shadowy = fnt->settings->shadowy;
+ pp.shadowz = fnt->settings->shadowz;
+ pp.outlinepadding_l = bound(0, ceil(pp.outline - pp.shadowx), POSTPROCESS_MAXRADIUS);
+ pp.outlinepadding_r = bound(0, ceil(pp.outline + pp.shadowx), POSTPROCESS_MAXRADIUS);
+ pp.outlinepadding_t = bound(0, ceil(pp.outline - pp.shadowy), POSTPROCESS_MAXRADIUS);
+ pp.outlinepadding_b = bound(0, ceil(pp.outline + pp.shadowy), POSTPROCESS_MAXRADIUS);
+ pp.blurpadding_lt = bound(0, ceil(pp.blur - pp.shadowz), POSTPROCESS_MAXRADIUS);
+ pp.blurpadding_rb = bound(0, ceil(pp.blur + pp.shadowz), POSTPROCESS_MAXRADIUS);
+ pp.padding_l = pp.blurpadding_lt + pp.outlinepadding_l;
+ pp.padding_r = pp.blurpadding_rb + pp.outlinepadding_r;
+ pp.padding_t = pp.blurpadding_lt + pp.outlinepadding_t;
+ pp.padding_b = pp.blurpadding_rb + pp.outlinepadding_b;
+ if(need_gauss)
+ {
+ float sum = 0;
+ for(x = -POSTPROCESS_MAXRADIUS; x <= POSTPROCESS_MAXRADIUS; ++x)
+ gausstable[POSTPROCESS_MAXRADIUS+x] = (pp.blur > 0 ? exp(-(pow(x + pp.shadowz, 2))/(pp.blur*pp.blur * 2)) : (floor(x + pp.shadowz + 0.5) == 0));
+ for(x = -pp.blurpadding_rb; x <= pp.blurpadding_lt; ++x)
+ sum += gausstable[POSTPROCESS_MAXRADIUS+x];
+ for(x = -POSTPROCESS_MAXRADIUS; x <= POSTPROCESS_MAXRADIUS; ++x)
+ pp.gausstable[POSTPROCESS_MAXRADIUS+x] = floor(gausstable[POSTPROCESS_MAXRADIUS+x] / sum * 255 + 0.5);
+ }
+ if(need_circle)
+ {
+ for(y = -POSTPROCESS_MAXRADIUS; y <= POSTPROCESS_MAXRADIUS; ++y)
+ for(x = -POSTPROCESS_MAXRADIUS; x <= POSTPROCESS_MAXRADIUS; ++x)
+ {
+ float d = pp.outline + 1 - sqrt(pow(x + pp.shadowx, 2) + pow(y + pp.shadowy, 2));
+ pp.circlematrix[POSTPROCESS_MAXRADIUS+y][POSTPROCESS_MAXRADIUS+x] = (d >= 1) ? 255 : (d <= 0) ? 0 : floor(d * 255 + 0.5);
+ }
+ }
+ pp.bufwidth = w + pp.padding_l + pp.padding_r;
+ pp.bufheight = h + pp.padding_t + pp.padding_b;
+ pp.bufpitch = pp.bufwidth;
+ needed = pp.bufwidth * pp.bufheight;
+ if(!pp.buf || pp.bufsize < needed * 2)
+ {
+ if(pp.buf)
+ Mem_Free(pp.buf);
+ pp.bufsize = needed * 4;
+ pp.buf = Mem_Alloc(font_mempool, pp.bufsize);
+ pp.buf2 = pp.buf + needed;
+ }
+}
+
+void Font_Postprocess(ft2_font_t *fnt, unsigned char *imagedata, int pitch, int bpp, int w, int h, int *pad_l, int *pad_r, int *pad_t, int *pad_b)
+{
+ int x, y;
+ Font_Postprocess_Update(fnt, bpp, w, h);
if(imagedata)
{
+ // enlarge buffer
+
// perform operation, not exceeding the passed padding values,
// but possibly reducing them
+ *pad_l = min(*pad_l, pp.padding_l);
+ *pad_r = min(*pad_r, pp.padding_r);
+ *pad_t = min(*pad_t, pp.padding_t);
+ *pad_b = min(*pad_b, pp.padding_b);
+
+ // calculate gauss table
+
+ // outline the font (RGBA only)
+ if(bpp == 4 && (pp.outline > 0 || pp.blur > 0 || pp.shadowx != 0 || pp.shadowy != 0 || pp.shadowz != 0)) // we can only do this in BGRA
+ {
+ // this is like mplayer subtitle rendering
+ // bbuffer, bitmap buffer: this is our font
+ // abuffer, alpha buffer: this is pp.buf
+ // tmp: this is pp.buf2
+
+ // create outline buffer
+ memset(pp.buf, 0, pp.bufwidth * pp.bufheight);
+ for(y = -*pad_t; y < h + *pad_b; ++y)
+ for(x = -*pad_l; x < w + *pad_r; ++x)
+ {
+ int x1 = max(-x, -pp.outlinepadding_r);
+ int y1 = max(-y, -pp.outlinepadding_b);
+ int x2 = min(pp.outlinepadding_l, w-1-x);
+ int y2 = min(pp.outlinepadding_t, h-1-y);
+ int mx, my;
+ int cur = 0;
+ int highest = 0;
+ for(my = y1; my <= y2; ++my)
+ for(mx = x1; mx <= x2; ++mx)
+ {
+ cur = pp.circlematrix[POSTPROCESS_MAXRADIUS+my][POSTPROCESS_MAXRADIUS+mx] * (int)imagedata[(x+mx) * bpp + pitch * (y+my) + (bpp - 1)];
+ if(cur > highest)
+ highest = cur;
+ }
+ pp.buf[((x + pp.padding_l) + pp.bufpitch * (y + pp.padding_t))] = (highest + 128) / 255;
+ }
+
+ // blur the outline buffer
+ if(pp.blur > 0 || pp.shadowz != 0)
+ {
+ // horizontal blur
+ for(y = 0; y < pp.bufheight; ++y)
+ for(x = 0; x < pp.bufwidth; ++x)
+ {
+ int x1 = max(-x, -pp.blurpadding_rb);
+ int x2 = min(pp.blurpadding_lt, pp.bufwidth-1-x);
+ int mx;
+ int blurred = 0;
+ for(mx = x1; mx <= x2; ++mx)
+ blurred += pp.gausstable[POSTPROCESS_MAXRADIUS+mx] * (int)pp.buf[(x+mx) + pp.bufpitch * y];
+ pp.buf2[x + pp.bufpitch * y] = bound(0, blurred, 65025) / 255;
+ }
+
+ // vertical blur
+ for(y = 0; y < pp.bufheight; ++y)
+ for(x = 0; x < pp.bufwidth; ++x)
+ {
+ int y1 = max(-y, -pp.blurpadding_rb);
+ int y2 = min(pp.blurpadding_lt, pp.bufheight-1-y);
+ int my;
+ int blurred = 0;
+ for(my = y1; my <= y2; ++my)
+ blurred += pp.gausstable[POSTPROCESS_MAXRADIUS+my] * (int)pp.buf2[x + pp.bufpitch * (y+my)];
+ pp.buf[x + pp.bufpitch * y] = bound(0, blurred, 65025) / 255;
+ }
+ }
+
+ // paste the outline below the font
+ for(y = -*pad_t; y < h + *pad_b; ++y)
+ for(x = -*pad_l; x < w + *pad_r; ++x)
+ {
+ unsigned char outlinealpha = pp.buf[(x + pp.padding_l) + pp.bufpitch * (y + pp.padding_t)];
+ if(outlinealpha > 0)
+ {
+ unsigned char oldalpha = imagedata[x * bpp + pitch * y + (bpp - 1)];
+ // a' = 1 - (1 - a1) (1 - a2)
+ unsigned char newalpha = 255 - ((255 - (int)outlinealpha) * (255 - (int)oldalpha)) / 255; // this is >= oldalpha
+ // c' = (a2 c2 - a1 a2 c1 + a1 c1) / a' = (a2 c2 + a1 (1 - a2) c1) / a'
+ unsigned char oldfactor = (255 * (int)oldalpha) / newalpha;
+ //unsigned char outlinefactor = ((255 - oldalpha) * (int)outlinealpha) / newalpha;
+ int i;
+ for(i = 0; i < bpp-1; ++i)
+ {
+ unsigned char c = imagedata[x * bpp + pitch * y + i];
+ c = (c * (int)oldfactor) / 255 /* + outlinecolor[i] * (int)outlinefactor */;
+ imagedata[x * bpp + pitch * y + i] = c;
+ }
+ imagedata[x * bpp + pitch * y + (bpp - 1)] = newalpha;
+ }
+ //imagedata[x * bpp + pitch * y + (bpp - 1)] |= 0x80;
+ }
+ }
}
else
{
- // calculate parameters
- *pad_l = *pad_r = *pad_t = *pad_b = 0;
+ // just calculate parameters
+ *pad_l = pp.padding_l;
+ *pad_r = pp.padding_r;
+ *pad_t = pp.padding_t;
+ *pad_b = pp.padding_b;
}
}
return (Font_SearchSize(font, fontface, size) > 0);
}
- Font_Postprocess(NULL, 0, 0, 0, 0, &gpad_l, &gpad_r, &gpad_t, &gpad_b);
+ Font_Postprocess(font, NULL, 0, 4, size*2, size*2, &gpad_l, &gpad_r, &gpad_t, &gpad_b);
memset(&temp, 0, sizeof(temp));
temp.size = size;
else
fontface = (FT_Face)font->face;
- switch(r_font_antialias.integer)
+ switch(font->settings->antialias)
{
case 0:
- switch(r_font_hinting.integer)
+ switch(font->settings->hinting)
{
case 0:
load_flags = FT_LOAD_NO_HINTING | FT_LOAD_NO_AUTOHINT | FT_LOAD_TARGET_MONO | FT_LOAD_MONOCHROME;
break;
default:
case 1:
- switch(r_font_hinting.integer)
+ switch(font->settings->hinting)
{
case 0:
load_flags = FT_LOAD_NO_HINTING | FT_LOAD_NO_AUTOHINT | FT_LOAD_TARGET_NORMAL;
return false;
}
- Font_Postprocess(NULL, 0, 0, 0, 0, &gpad_l, &gpad_r, &gpad_t, &gpad_b);
+ Font_Postprocess(font, NULL, 0, bytesPerPixel, mapstart->size*2, mapstart->size*2, &gpad_l, &gpad_r, &gpad_t, &gpad_b);
// copy over the information
map->size = mapstart->size;
}
imagedata = data + gR * pitch * map->glyphSize + gC * map->glyphSize * bytesPerPixel;
- imagedata += gpad_t * pitch + gpad_l;
+ imagedata += gpad_t * pitch + gpad_l * bytesPerPixel;
//status = qFT_Load_Char(face, ch, FT_LOAD_RENDER);
// we need the glyphIndex
face = font->face;
pad_r = gpad_r;
pad_t = gpad_t;
pad_b = gpad_b;
- Font_Postprocess(imagedata, pitch, w, h, bytesPerPixel, &pad_l, &pad_r, &pad_t, &pad_b);
+ Font_Postprocess(font, imagedata, pitch, bytesPerPixel, w, h, &pad_l, &pad_r, &pad_t, &pad_b);
// now fill map->glyphs[ch - map->start]
mapglyph = &map->glyphs[mapch];
//double mWidth = (glyph->metrics.width >> 6) / map->size;
//double mHeight = (glyph->metrics.height >> 6) / map->size;
- mapglyph->txmin = ( (double)(gC * map->glyphSize) ) / ( (double)(map->glyphSize * FONT_CHARS_PER_LINE) );
+ mapglyph->txmin = ( (double)(gC * map->glyphSize) + (double)(gpad_l - pad_l) ) / ( (double)(map->glyphSize * FONT_CHARS_PER_LINE) );
mapglyph->txmax = mapglyph->txmin + (double)(bmp->width + pad_l + pad_r) / ( (double)(map->glyphSize * FONT_CHARS_PER_LINE) );
- mapglyph->tymin = ( (double)(gR * map->glyphSize) ) / ( (double)(map->glyphSize * FONT_CHAR_LINES) );
+ mapglyph->tymin = ( (double)(gR * map->glyphSize) + (double)(gpad_r - pad_r) ) / ( (double)(map->glyphSize * FONT_CHAR_LINES) );
mapglyph->tymax = mapglyph->tymin + (double)(bmp->rows + pad_t + pad_b) / ( (double)(map->glyphSize * FONT_CHAR_LINES) );
//mapglyph->vxmin = bearingX;
//mapglyph->vxmax = bearingX + mWidth;
- mapglyph->vxmin = glyph->bitmap_left / map->size;
+ mapglyph->vxmin = (glyph->bitmap_left - pad_l) / map->size;
mapglyph->vxmax = mapglyph->vxmin + (bmp->width + pad_l + pad_r) / map->size; // don't ask
//mapglyph->vymin = -bearingY;
//mapglyph->vymax = mHeight - bearingY;
- mapglyph->vymin = -glyph->bitmap_top / map->size;
+ mapglyph->vymin = (-glyph->bitmap_top - pad_t) / map->size;
mapglyph->vymax = mapglyph->vymin + (bmp->rows + pad_t + pad_b) / map->size;
//Con_Printf("dpi = %f %f (%f %d) %d %d\n", bmp->width / (mapglyph->vxmax - mapglyph->vxmin), bmp->rows / (mapglyph->vymax - mapglyph->vymin), map->size, map->glyphSize, (int)fontface->size->metrics.x_ppem, (int)fontface->size->metrics.y_ppem);
//mapglyph->advance_x = advance * usefont->size;
projects / xonotic / darkplaces.git / blobdiff