void vita2d_pgf_text_dimensions(vita2d_pgf *font, float scale, const char *text, int *width, int *height)
{
int pen_x = 0;
int max_h = 0;
while (*text) {
unsigned int character = *text++;
if (!texture_atlas_exists(font->tex_atlas, character)) {
if (!atlas_add_glyph_pgf(font, character)) {
continue;
}
}
bp2d_rectangle rect;
int bitmap_left, bitmap_top;
int advance_x, advance_y;
if (!texture_atlas_get(font->tex_atlas, character,
&rect, &bitmap_left, &bitmap_top,
&advance_x, &advance_y, NULL))
continue;
if (rect.h > max_h)
max_h = rect.h;
pen_x += (advance_x >> 6) * scale;
}
if (width)
*width = pen_x;
if (height)
*height = max_h;
}
int vita2d_pgf_draw_text(vita2d_pgf *font, int x, int y, unsigned int color, float scale, const char *text)
{
int pen_x = x;
while (*text) {
unsigned int character = *text++;
if (!texture_atlas_exists(font->tex_atlas, character)) {
if (!atlas_add_glyph_pgf(font, character)) {
continue;
}
}
bp2d_rectangle rect;
int bitmap_left, bitmap_top;
int advance_x, advance_y;
if (!texture_atlas_get(font->tex_atlas, character,
&rect, &bitmap_left, &bitmap_top,
&advance_x, &advance_y, NULL))
continue;
vita2d_draw_texture_tint_part_scale(font->tex_atlas->tex,
pen_x + bitmap_left * scale,
y - bitmap_top * scale,
rect.x, rect.y, rect.w, rect.h,
scale,
scale,
color);
pen_x += (advance_x >> 6) * scale;
}
return pen_x - x;
}
void vita2d_font_draw_text(vita2d_font *font, int x, int y, unsigned int color, unsigned int size, const char *text)
{
FTC_FaceID face_id = (FTC_FaceID)font;
FT_Face face;
FTC_Manager_LookupFace(font->ftcmanager, face_id, &face);
FT_Int charmap_index;
charmap_index = FT_Get_Charmap_Index(face->charmap);
FT_Glyph glyph;
FT_Bool use_kerning = FT_HAS_KERNING(face);
FT_UInt glyph_index, previous = 0;
int pen_x = x;
int pen_y = y + size;
FTC_ScalerRec scaler;
scaler.face_id = face_id;
scaler.width = size;
scaler.height = size;
scaler.pixel = 1;
FT_ULong flags = FT_LOAD_RENDER | FT_LOAD_TARGET_NORMAL;
while (*text) {
glyph_index = FTC_CMapCache_Lookup(font->cmapcache, (FTC_FaceID)font, charmap_index, *text);
if (use_kerning && previous && glyph_index) {
FT_Vector delta;
FT_Get_Kerning(face, previous, glyph_index, FT_KERNING_DEFAULT, &delta);
pen_x += delta.x >> 6;
}
if (!texture_atlas_exists(font->tex_atlas, glyph_index)) {
FTC_ImageCache_LookupScaler(font->imagecache, &scaler, flags, glyph_index, &glyph, NULL);
if (!atlas_add_glyph(font->tex_atlas, glyph_index, (FT_BitmapGlyph)glyph, size)) {
continue;
}
}
bp2d_rectangle rect;
int bitmap_left, bitmap_top;
int advance_x, advance_y;
int glyph_size;
texture_atlas_get(font->tex_atlas, glyph_index,
&rect, &bitmap_left, &bitmap_top,
&advance_x, &advance_y, &glyph_size);
const float draw_scale = size/(float)glyph_size;
vita2d_draw_texture_tint_part_scale(font->tex_atlas->tex,
pen_x + bitmap_left * draw_scale,
pen_y - bitmap_top * draw_scale,
rect.x, rect.y, rect.w, rect.h,
draw_scale,
draw_scale,
color);
pen_x += (advance_x >> 16) * draw_scale;
pen_y += (advance_y >> 16) * draw_scale;
previous = glyph_index;
text++;
}
