struct TEXT_FONT_GLYPH *textRenderGlyph(struct TEXT_FONT_CACHE *index, unsigned int glyph, int glyph_index, TEXT_FONT *font) {
int pos_x, pos_y, w, h, x1, x2, y1, y2, ad, sb;
unsigned char *data;
struct TEXT_FONT_GLYPH *next, *alloc;
float skipf;
if ((alloc = malloc(sizeof(struct TEXT_FONT_GLYPH))) == NULL)
return NULL;
next = index->glyph;
alloc->next = NULL;
if (next == NULL)
index->glyph = alloc;
else {
while (next->next != NULL)
next = next->next;
next->next = alloc;
}
x1 = y1 = x2 = y2 = 0;
data = stbtt_GetGlyphBitmap(&font->face, 0, font->scale, glyph_index, &w, &h, 0, 0);
textCacheGetCoordinates(index, w, h, &pos_x, &pos_y);
stbtt_GetGlyphBox(&font->face, glyph_index, &x1, &y1, &x2, &y2);
stbtt_GetGlyphHMetrics(&font->face, glyph_index, &ad, &sb);
alloc->u1 = index->sheet_pwf * pos_x;
alloc->v1 = index->sheet_phf * pos_y;
alloc->u2 = index->sheet_pwf * pos_x + index->sheet_pwf * (w);
alloc->v2 = index->sheet_phf * pos_y + index->sheet_phf * (h);
alloc->wf = index->sheet_pwf * w;
alloc->hf = index->sheet_phf * h;
alloc->risei = y2 * font->scale;
alloc->rise = index->ts->shgran * alloc->risei;
alloc->cw = w;
alloc->ch = h;
alloc->adv = lrintf(font->scale * ad);
alloc->advf = index->ts->swgran * alloc->adv;
skipf = font->scale * sb;
alloc->skip = skipf;
alloc->skipf = index->ts->swgran * skipf;
alloc->glyph = glyph;
alloc->tex_cache = index;
renderUpdateTilesheet(index->ts, pos_x, pos_y, data, w, h);
stbtt_FreeBitmap(data, NULL);
return alloc;
}
static inline jint wrapped_Java_com_badlogic_gdx_graphics_g2d_stbtt_StbTrueType_getGlyphBox
(JNIEnv* env, jclass clazz, jlong info, jint glyphIndex, jintArray obj_box, int* box) {
//@line:103
int x0, y0, x1, y1;
x0 = y0 = x1 = y1 = 0;
int result = stbtt_GetGlyphBox((stbtt_fontinfo*)info, glyphIndex, &x0, &y0, &x1, &y1);
box[0] = x0;
box[1] = y0;
box[2] = x1;
box[3] = y1;
return result;
}
static uint32_t font_renderer_stb_unicode_update_atlas(
stb_unicode_font_renderer_t *self, uint32_t charcode)
{
int advance_width, left_side_bearing;
int id, glyph_index, offset_x, offset_y;
struct font_glyph *glyph = NULL;
uint8_t *dst = NULL;
int x0 = 0;
int y1 = 0;
if(charcode > 0xFFFF)
return 0;
if(self->uc_to_id[charcode])
return self->uc_to_id[charcode];
id = font_renderer_stb_unicode_get_slot(self);
self->id_to_uc[id] = charcode;
self->uc_to_id[charcode] = id;
self->atlas.dirty = true;
glyph = &self->glyphs[id];
glyph_index = stbtt_FindGlyphIndex(&self->info, charcode);
offset_x = (id % 16) * self->max_glyph_width;
offset_y = (id / 16) * self->max_glyph_height;
dst = self->atlas.buffer + offset_x + offset_y
* self->atlas.width;
stbtt_MakeGlyphBitmap(&self->info, dst, self->max_glyph_width, self->max_glyph_height,
self->atlas.width, self->scale_factor, self->scale_factor, glyph_index);
stbtt_GetGlyphHMetrics(&self->info, glyph_index, &advance_width, &left_side_bearing);
stbtt_GetGlyphBox(&self->info, glyph_index, &x0, NULL, NULL, &y1);
glyph->advance_x = advance_width * self->scale_factor;
glyph->atlas_offset_x = offset_x;
glyph->atlas_offset_y = offset_y;
glyph->draw_offset_x = x0 * self->scale_factor;
glyph->draw_offset_y = - y1 * self->scale_factor;
glyph->width = self->max_glyph_width;
glyph->height = self->max_glyph_height;
return id;
}
