static int GetCharacterOffsets(void *_font, const char *text, int *byteOffsets, int *pixelOffsets, int maxOffsets)
{
TTF_Font *font = (TTF_Font *)_font;
int i = 0;
int bytes = 0;
int pixels = 0;
int advance;
Uint16 ch;
while ( *text && i < maxOffsets ) {
byteOffsets[i] = bytes;
pixelOffsets[i] = pixels;
++i;
ch = UTF8_to_UNICODE(text, &advance);
text += advance;
bytes += advance;
TTF_GlyphMetrics(font, ch, NULL, NULL, NULL, NULL, &advance);
pixels += advance;
}
if ( i < maxOffsets ) {
byteOffsets[i] = bytes;
pixelOffsets[i] = pixels;
}
return i;
}
IntRect Bitmap::textSize(const char *str)
{
guardDisposed();
GUARD_MEGA;
TTF_Font *font = p->font->getSdlFont();
std::string fixed = fixupString(str);
str = fixed.c_str();
int w, h;
TTF_SizeUTF8(font, str, &w, &h);
/* If str is one character long, *endPtr == 0 */
const char *endPtr;
uint16_t ucs2 = utf8_to_ucs2(str, &endPtr);
/* For cursive characters, returning the advance
* as width yields better results */
if (p->font->getItalic() && *endPtr == '\0')
TTF_GlyphMetrics(font, ucs2, 0, 0, 0, 0, &w);
return IntRect(0, 0, w, h);
}
static mrb_value
mrb_sdl2_ttf_font_get_glyph_metric(mrb_state *mrb, mrb_value self)
{
int minx, maxx, miny, maxy, advance;
mrb_value character;
Uint16 ch;
mrb_value result;
mrb_get_args(mrb, "b", &character);
if (mrb_obj_is_kind_of(mrb, character, mrb_class_get_under(mrb, mrb->object_class, "String"))) {
ch = *RSTRING_PTR(character);
} else if (mrb_obj_is_kind_of(mrb, character, mrb_class_get_under(mrb, mrb->object_class, "Integer"))) {
ch = (Uint16) character.value.i;
}
result = mrb_hash_new_capa(mrb, 5);
if (TTF_GlyphMetrics(mrb_sdl2_font_get_ptr(mrb, self), ch, &minx, &maxx, &miny, &maxy, &advance) == -1) {
mruby_sdl2_raise_error(mrb);
return mrb_false_value();
}
mrb_hash_set(mrb, result, mrb_str_new_cstr(mrb, "minx"), mrb_fixnum_value(minx));
mrb_hash_set(mrb, result, mrb_str_new_cstr(mrb, "maxx"), mrb_fixnum_value(maxx));
mrb_hash_set(mrb, result, mrb_str_new_cstr(mrb, "miny"), mrb_fixnum_value(miny));
mrb_hash_set(mrb, result, mrb_str_new_cstr(mrb, "maxy"), mrb_fixnum_value(maxy));
mrb_hash_set(mrb, result, mrb_str_new_cstr(mrb, "advance"), mrb_fixnum_value(advance));
return result;
}
unsigned int Font::getWidthFromCharacter( char c ) const
{
int minx, maxx, miny, maxy, advance;
TTF_GlyphMetrics( _d->ttfFont, c, &minx, &maxx, &miny, &maxy, &advance );
return advance;
}
static void cache_glyphs()
{
int top = 999;
int bottom = -999;
start_color();
for(int ch = 0; ch < 128; ch++) {
for(int color = 0; color < 16; color++) {
//I hate this kind of ternary use
SDL_Surface * sglyph = (fontblending ? TTF_RenderGlyph_Blended : TTF_RenderGlyph_Solid)(font, ch, windowsPalette[color]);
if(sglyph != NULL) {
int minx, maxx, miny, maxy, advance;
if(color==0 && 0 == TTF_GlyphMetrics(font, ch, &minx, &maxx, &miny, &maxy, &advance) ) {
int t = TTF_FontAscent(font)-maxy;
int b = t + sglyph->h;
if(t < top) top = t;
if(b > bottom) bottom = b;
}
glyph_height[ch] = sglyph->h;
glyph_cache[ch][color] = SDL_CreateTextureFromSurface(renderer,sglyph);
}
SDL_FreeSurface(sglyph);
}
}
int height = bottom - top;
int delta = (fontheight - height) / 2;
ttf_height_hack = delta - top;
}
Font_FT::Glyph::Glyph(TTF_Font *font_, const unsigned char &c,
SDL_Surface *source,
SDL_Surface *render_target, const SDL_Rect &dstrect,
const int &total_width, const int &total_height,
const float &vratio)
: m_glyph_width(0)
{
int minx, maxy, glyph_width;
TTF_GlyphMetrics(font_, c, &minx, 0, 0, &maxy, &glyph_width);
m_glyph_width = glyph_width / vratio;
m_upper_left_point.x = float(minx) / vratio;
m_upper_left_point.y = float(TTF_FontAscent(font_) - maxy) / vratio;
m_lower_right_point.x = m_upper_left_point.x + source->w / vratio;
m_lower_right_point.y = m_upper_left_point.y + source->h / vratio;
SDL_Rect dstrect2 = {dstrect.x, dstrect.y, Uint16(source->w), Uint16(source->h)};
m_upper_left_texel.x = float(dstrect2.x) / float(total_width);
m_upper_left_texel.y = float(dstrect2.y) / float(total_height);
m_lower_right_texel.x = float(dstrect2.x + source->w) / float(total_width);
m_lower_right_texel.y = float(dstrect2.y + source->h) / float(total_height);
SDL_BlitSurface(source, 0, render_target, &dstrect2);
SDL_FreeSurface(source);
}
Glyph *font_getGlyphInfo(int start, int count) {
int i;
Glyph *first;
Glyph *current;
int minx, maxx, miny, maxy;
first = malloc(sizeof(Glyph));
if (!first) {
error_print("Unable to allocate memory for glyph info.");
return NULL;
}
current = first;
for (i = 0; i < (start + count); i++) {
TTF_GlyphMetrics(font, start + count, &minx, &maxx, &miny, &maxy, NULL);
current->w = maxx - minx;
current->h = maxy - miny;
current->x = 0;
current->y = 0;
current->next = NULL;
if (i + 1 < (start + count)) {
current->next = malloc(sizeof(Glyph));
if (!current->next) {
error_print("Unable to allocate memory for glyph info.");
// todo: add destruction code here
return NULL;
}
current = current->next;
}
}
return first;
}
bool Init()
{
TTF_Init();
PokemonNormal.sdlColor = { 0, 0, 0, 0 };
PokemonNormal.ttfFont = TTF_OpenFont("Fonts/PokemonRed.ttf", 16);
if (PokemonNormal.ttfFont == NULL)
{
printf("Failure to load \"Fonts/PokemonRed.ttf\"\n");
return 1;
}
int i;
for (i = 0; i < 256; i++)
{
if (TTF_GlyphMetrics(PokemonNormal.ttfFont, i,
&PokemonNormal.aoChar[i].iMinX, &PokemonNormal.aoChar[i].iMaxX, &PokemonNormal.aoChar[i].iMinY, &PokemonNormal.aoChar[i].iMaxY,
&PokemonNormal.aoChar[i].iAdvance) == -1)
{
printf("%s\n", TTF_GetError());
return 1;
}
}
return 0;
}
SDL_Surface *addOverlayLetter(SDL_Surface *image, const char *text)
{
const char *font_path = "../Resources/Helvetica.ttf";
const unsigned int font_size = 128;
TTF_Font *overlay_font = loadFont(font_path, font_size); // TODO: check this succeeded!
//TTF_SetFontOutline(overlay_font, 1);
SDL_Rect text_loc;
SDL_Color text_color = { 0xFF, 0xFF, 0xFF };
int text_minx, text_maxx, text_miny, text_maxy, text_advance;
TTF_GlyphMetrics(overlay_font, text[0], &text_minx, &text_maxx, &text_miny, &text_maxy, &text_advance);
// Center the letter in the image
text_loc.w = image->w;
text_loc.h = image->h;
text_loc.x = text_minx - 8;
text_loc.y = text_miny;
// Blitting
SDL_Surface *overlay = TTF_RenderText_Blended(overlay_font, text, text_color);
overlay = SDL_DisplayFormatAlpha(overlay);
SDL_SetAlpha(overlay, SDL_SRCALPHA | SDL_RLEACCEL, 10);
SDL_BlitSurface(overlay, &text_loc, image, NULL);
SDL_FreeSurface(overlay);
TTF_CloseFont(overlay_font);
return image;
}
void Font::loadChar(int c) {
GLfloat texcoord[4];
char letter[2] = { 0, 0 };
if ((minGlyph <= c) && (c <= maxGlyph) && (NULL == glyphs[c].pic)) {
SDL_Surface *g0 = NULL;
SDL_Surface *g1 = NULL;
letter[0] = c;
TTF_GlyphMetrics(ttfFont, (Uint16) c, &glyphs[c].minx, &glyphs[c].maxx,
&glyphs[c].miny, &glyphs[c].maxy, &glyphs[c].advance);
g0 = TTF_RenderText_Shaded(ttfFont, letter, foreground, background);
if (g0) {
g1 = SDL_ConvertSurface(g0,g0->format,0);
SDL_FreeSurface(g0);
}
if (g1) {
glyphs[c].pic = g1;
glyphs[c].tex = 0; // loadTextureColorKey(g1, texcoord, 0, 0, 0);
glyphs[c].texMinX = texcoord[0];
glyphs[c].texMinY = texcoord[1];
glyphs[c].texMaxX = texcoord[2];
glyphs[c].texMaxY = texcoord[3];
}
}
}
static void cache_glyphs()
{
int top=999, bottom=-999;
start_color();
for(int ch=0; ch<128; ch++)
{
for(int color=0; color<16; color++)
{
SDL_Surface * glyph = glyph_cache[ch][color] = (fontblending?TTF_RenderGlyph_Blended:TTF_RenderGlyph_Solid)(font, ch, windowsPalette[color]);
int minx, maxx, miny, maxy, advance;
if(glyph!=NULL && color==0 && 0==TTF_GlyphMetrics(font, ch, &minx, &maxx, &miny, &maxy, &advance) )
{
int t = TTF_FontAscent(font)-maxy;
int b = t + glyph->h;
if(t<top) top = t;
if(b>bottom) bottom = b;
}
}
}
int height = bottom - top;
int delta = (fontheight-height)/2;
ttf_height_hack = delta - top;
}
void ONScripterLabel::drawGlyph( SDL_Surface *dst_surface, FontInfo *info, SDL_Color &color, char* text, int xy[2], bool shadow_flag, AnimationInfo *cache_info, SDL_Rect *clip, SDL_Rect &dst_rect )
{
unsigned short unicode;
if (IS_TWO_BYTE(text[0])){
unsigned index = ((unsigned char*)text)[0];
index = index << 8 | ((unsigned char*)text)[1];
unicode = onsLocaleConv( index );
}
else{
if ((text[0] & 0xe0) == 0xa0 || (text[0] & 0xe0) == 0xc0) unicode = ((unsigned char*)text)[0] - 0xa0 + 0xff60;
else unicode = text[0];
}
int minx, maxx, miny, maxy, advanced;
#if 0
if (TTF_GetFontStyle( (TTF_Font*)info->ttf_font ) !=
(info->is_bold?TTF_STYLE_BOLD:TTF_STYLE_NORMAL) )
TTF_SetFontStyle( (TTF_Font*)info->ttf_font, (info->is_bold?TTF_STYLE_BOLD:TTF_STYLE_NORMAL));
#endif
TTF_GlyphMetrics( (TTF_Font*)info->ttf_font, unicode,
&minx, &maxx, &miny, &maxy, &advanced );
//printf("min %d %d %d %d %d %d\n", minx, maxx, miny, maxy, advanced,TTF_FontAscent((TTF_Font*)info->ttf_font) );
SDL_Surface *tmp_surface = renderGlyph( (TTF_Font*)info->ttf_font, unicode );
bool rotate_flag = false;
if ( info->getTateyokoMode() == FontInfo::TATE_MODE && IS_ROTATION_REQUIRED(text) ) rotate_flag = true;
dst_rect.x = xy[0] + minx;
dst_rect.y = xy[1] + TTF_FontAscent((TTF_Font*)info->ttf_font) - maxy;
if ( rotate_flag ) dst_rect.x += miny - minx;
if ( info->getTateyokoMode() == FontInfo::TATE_MODE && IS_TRANSLATION_REQUIRED(text) ){
dst_rect.x += info->font_size_xy[0]/2;
dst_rect.y -= info->font_size_xy[0]/2;
}
if ( shadow_flag ){
dst_rect.x += shade_distance[0];
dst_rect.y += shade_distance[1];
}
if ( tmp_surface ){
if (rotate_flag){
dst_rect.w = tmp_surface->h;
dst_rect.h = tmp_surface->w;
}
else{
dst_rect.w = tmp_surface->w;
dst_rect.h = tmp_surface->h;
}
if (cache_info)
cache_info->blendBySurface( tmp_surface, dst_rect.x, dst_rect.y, color, clip, rotate_flag );
if (dst_surface)
alphaBlend32( dst_surface, dst_rect, tmp_surface, color, clip, rotate_flag );
}
}
Bool fillXCharStruct(TTF_Font* font, unsigned int character, XCharStruct* charStruct) {
int minX, maxX, minY, maxY, advance;
if (TTF_GlyphMetrics(font, (Uint16) character, &minX, &maxX, &minY, &maxY, &advance) == -1) {
LOG("Failed to determine metrics for character '%u': %s\n", character, TTF_GetError());
return False;
}
charStruct->width = (short) advance;
charStruct->rbearing = (short) maxX;
return True;
}
void load_font(char *fname, int size)
{
char *p;
free_font();
font=TTF_OpenFont(fname, size);
if(!font)
{
printf("TTF_OpenFont: %s\n", TTF_GetError());
exit(3);
}
/* print some metrics and attributes */
printf("size : %d\n",size);
printf("TTF_FontHeight : %d\n",TTF_FontHeight(font));
printf("TTF_FontAscent : %d\n",TTF_FontAscent(font));
printf("TTF_FontDescent : %d\n",TTF_FontDescent(font));
printf("TTF_FontLineSkip : %d\n",TTF_FontLineSkip(font));
printf("TTF_FontFaceIsFixedWidth: %d\n",TTF_FontFaceIsFixedWidth(font));
{
char *str=TTF_FontFaceFamilyName(font);
if(!str)
str="(null)";
printf("TTF_FontFaceFamilyName : \"%s\"\n",str);
}
{
char *str=TTF_FontFaceStyleName(font);
if(!str)
str="(null)";
printf("TTF_FontFaceStyleName : \"%s\"\n",str);
}
if(TTF_GlyphIsProvided(font,'g'))
{
int minx, maxx, miny, maxy, advance;
TTF_GlyphMetrics(font,'g', &minx, &maxx, &miny, &maxy, &advance);
printf("TTF_GlyphMetrics('g'):\n\tminx=%d\n\tmaxx=%d\n\tminy=%d\n\tmaxy=%d\n\tadvance=%d\n",
minx, maxx, miny, maxy, advance);
}
else
printf("TTF_GlyphMetrics('g'): unavailable in font!\n");
/* set window title and icon name, using filename and stuff */
p=strrchr(fname,'/');
if(!p)
p=strrchr(fname,'\\');
if(!p)
p=strrchr(fname,':');
if(!p)
p=fname;
else
p++;
/* cache new glyphs */
cache_glyphs();
}
void
Font::CalculateHeights()
{
height = TTF_FontHeight(font);
ascent_height = TTF_FontAscent(font);
int miny, maxy;
TTF_GlyphMetrics(font, 'M', NULL, NULL, &miny, &maxy, NULL);
capital_height = maxy - miny + 1;
}
void SimKit::TTFVFont::get_glyph_data(const Uint32 ch, SDL_Rect *out_glyph_box, int *out_advance) {
int minx, maxx, miny, maxy, advance;
TTF_GlyphMetrics(this->rfont, ch, &minx, &maxx, &miny, &maxy, &advance);
if (out_advance) *out_advance = advance;
if (out_glyph_box) {
out_glyph_box->x = minx;
out_glyph_box->y = -maxy; //SDL uses top-left coords, OpenGL and FreeType use bottom-left coords
out_glyph_box->w = maxx - minx;
out_glyph_box->h = maxy - miny;
}
};
/**
* Initializes the required font metrics.
*/
static Code initialize_font_metrics(void) {
int width;
int height;
Font *font = global_monospaced_font;
if (TTF_GlyphMetrics(font, 'A', NULL, NULL, NULL, NULL, &width)) {
log_message("Could not assess the width of a font.");
return CODE_ERROR;
}
height = TTF_FontHeight(font);
global_monospaced_font_width = width;
global_monospaced_font_height = height;
return CODE_OK;
}
// determines the dimensions to create the most economical texture size,
// based on the font starting char and count. glyphs are organised into a 2d
// array
// returns dimensions in *width and *height
// todo: change to use font_getGlyphInfo()
int font_determineDimensions(int start_char, int count, int *width, int *height, int *per_row) {
int minx, maxx, miny, maxy, advance;
int cur_row_width, max_row_width;
int cur_max_height;
int glyphs[*per_row][*per_row];
int x, y;
// set to 0
*width = 0;
*height = 0;
max_row_width = 0;
// cycle through all characters starting with start_char
for (y = 0; y < *per_row; y++) {
// reset for the next row
cur_row_width = 0;
cur_max_height = 0;
for (x = 0; x < *per_row; x++ ) {
if ((x+(*per_row * y)) < count) { // make sure we don't do too many chars (due to the rounding above)
glyphs[x][y] = start_char + (x + (x * y));
// get the metrics
if (TTF_GlyphMetrics(font, glyphs[x][y], &minx, &maxx, &miny,
&maxy, &advance)){
error_print("Failed to get Glyph metrics.");
return 0;
}
// increment the row width by the glyph width
cur_row_width += advance + (GLYPH_PADDING * 2);
// is this the highest character in the row
if (maxy + (GLYPH_PADDING * 2) > cur_max_height) {
cur_max_height = maxy + (GLYPH_PADDING * 2) + 20; // todo: 20 is a temp fix...
}
}
}
*height += cur_max_height; // use highest char as row height and add to total
// is this the widest row so far?
if (cur_row_width > max_row_width)
max_row_width = cur_row_width + 20; // todo: 20 is a temp fix...
}
*width = max_row_width; // set the widest row as the width
return 1;
}
GlyphMetrics SDLFont::getGlyph(Uint16 ch) {
GlyphMetrics metrics;
int minx, miny, maxx, maxy, advance;
int error = TTF_GlyphMetrics(this->fontContext, ch,
&minx, &maxx,
&miny, &maxy,
&advance);
metrics.minx = minx;
metrics.miny = miny;
metrics.maxx = maxx;
metrics.maxy = maxy;
metrics.advance = advance;
return metrics;
}
texture *font_impl::get_glyph(const wchar_t ch) const
{
shared_pointer<texture> tex = glyph_textures[ch];
if (!tex.ptr())
{
int minx, maxx, miny, maxy, advance;
if (TTF_GlyphMetrics(static_cast<TTF_Font *>(ttf_font_ptr), ch, &minx, &maxx, &miny, &maxy, &advance) == -1)
throw runtime_exception(L"Error getting glyph metrics: %hs", TTF_GetError());
SDL_Color c;
c.r = static_cast<Uint8>(fg[color::COMPONENT_RED] * 255.0f);
c.g = static_cast<Uint8>(fg[color::COMPONENT_GREEN] * 255.0f);
c.b = static_cast<Uint8>(fg[color::COMPONENT_BLUE] * 255.0f);
SDL_Surface *surf1 = TTF_RenderGlyph_Blended(static_cast<TTF_Font *>(ttf_font_ptr), ch, c);
SDL_Surface *surf2 = SDL_CreateRGBSurface(SDL_SWSURFACE, nearest_power_2(minx + surf1->w), texture_height, 32, surf1->format->Rmask, surf1->format->Gmask, surf1->format->Bmask, surf1->format->Amask);
if (!surf2)
throw runtime_exception(L"Unable to create SDL surface: %hs", SDL_GetError());
SDL_Rect dest;
dest.x = minx > 0 ? minx : 0;
dest.y = (surf2->h - font_height) + (font_ascent - maxy);
dest.w = surf1->w;
dest.h = surf1->h;
clear_pixel_alpha(surf2);
src_alpha_blit(surf1, surf2, dest.x, dest.y);
string glyph_id = string::format(L"%ls %d: %lc", face.w_string(), size, ch);
tex = new texture(FONT_TEXTURE_CATEGORY, surf2, texture::TEXTURE_ENV_REPLACE | texture::TEXTURE_WRAP_CLAMP | texture::TEXTURE_FILTER_LINEAR, texture::TEXTURE_COLORMAP, glyph_id.w_string());
glyph_textures[ch] = tex;
glyph_pct_x[ch] = static_cast<float>(advance) / static_cast<float>(surf2->w);
glyph_pct_y[ch] = static_cast<float>(font_height) / static_cast<float>(surf2->h);
glyph_widths[ch] = static_cast<float>(advance);
SDL_FreeSurface(surf2);
SDL_FreeSurface(surf1);
}
return tex.ptr();
} // font_impl::get_glyph()
// Get real text dimensions -- the textshape will completely contain the
// rendered text but won't match its size. This function can be used to
// get the true position and dimensions of the rendered text.
//
// The fifth argument, b, is the baseline of the text
void TextShape::getTextDimensions(int *x, int *y, int *w, int *h, int *b,
int *yOff)
{
if (textShapeFont[fontSize] == NULL)
{
textShapeFont[fontSize] = FONT_LoadTTF("FreeSans.ttf", fontSize);
}
assert(textShapeFont[fontSize] != NULL);
int realH = 0;
Uint16 *ch = unicodeStr;
int overallMaxY = 0;
while (*ch != '\0')
{
int minx, maxx, miny, maxy, advance;
int err = TTF_GlyphMetrics(textShapeFont[fontSize], *ch, &minx,
&maxx, &miny, &maxy, &advance);
if (!err)
{
realH = std::max(realH, maxy - miny + 1);
overallMaxY = std::max(overallMaxY, maxy);
}
else
{
printf("warning: TTF_GlyphMetrics returned an error\n");
}
ch++;
}
int ascent = TTF_FontAscent(textShapeFont[fontSize]);
int realYOffset = ascent - overallMaxY;
// Can't get width from the individual glyphs due to kerning issues,
// just call TTF_SizeUNICODE
int textw, dummy;
// Get text size:
TTF_SizeUNICODE(textShapeFont[fontSize], unicodeStr, &textw, &dummy);
if (x) *x = xpos + cxoff;
if (y) *y = ypos + cyoff;
if (w) *w = textw;
if (h) *h = realH;
if (b) *b = ypos + overallMaxY + cxoff;
if (yOff) *yOff = realYOffset;
}
void cache_glyphs()
{
int i;
char title[800];
SDL_Color fg={0,0,0,255};
#if RENDER_MODE==1
SDL_Color bg={255,255,255,255};
#endif
free_glyphs();
if(!font)
return;
if(style!=TTF_GetFontStyle(font))
TTF_SetFontStyle(font,style);
if(kerning != !!TTF_GetFontKerning(font))
TTF_SetFontKerning(font,kerning);
if(hinting != TTF_GetFontHinting(font))
TTF_SetFontHinting(font,hinting);
if(outline != TTF_GetFontOutline(font))
TTF_SetFontOutline(font,outline);
for(i=0; i<128; i++)
{
/* cache rendered surface */
#if RENDER_MODE==0
text[i]=TTF_RenderGlyph_Solid(font,i+start_glyph,fg);
#elif RENDER_MODE==1
text[i]=TTF_RenderGlyph_Shaded(font,i+start_glyph,fg,bg);
#elif RENDER_MODE==2
text[i]=TTF_RenderGlyph_Blended(font,i+start_glyph,fg);
#endif
if(!text[i])
{
printf("TTF_RenderGlyph_Shaded: %s\n", TTF_GetError());
exit(4);
}
/* cache metrics */
TTF_GlyphMetrics(font, i+start_glyph,
&gm[i].minx, &gm[i].maxx,
&gm[i].miny, &gm[i].maxy,
&gm[i].advance);
}
sprintf(title,"%s-%s:%d+0x%04x",TTF_FontFaceFamilyName(font),
TTF_FontFaceStyleName(font),font_size,start_glyph);
SDL_WM_SetCaption(title,"latin1");
}
//
// Given a single character, make it into an opengl texture
//
static void ttf_create_tex_from_char (font *f, uint8 c)
{
static char text[2];
int e;
//
// Load the glyph info
//
e = TTF_GlyphMetrics(f->ttf, c,
&f->glyphs[c].minx,
&f->glyphs[c].maxx,
&f->glyphs[c].miny,
&f->glyphs[c].maxy,
&f->glyphs[c].advance);
if (e != 0) {
ERR("error loading font glyph %u %s", c, f->name);
return;
}
text[0] = c;
text[1] = '\0';
SDL_Surface *g0 =
TTF_RenderText_Shaded(f->ttf, text, f->foreground, f->background);
if (!g0) {
ERR("error rendering font glyph %u %s", c, f->name);
return;
}
SDL_Surface *g1 = SDL_DisplayFormat(g0);
SDL_FreeSurface(g0);
if (!g1) {
ERR("error getting display format for font glyph %u %s", c, f->name);
return;
}
GLfloat texcoord [4];
f->glyphs[c].image = g1;
f->glyphs[c].tex = ttf_set_color_key(g1, texcoord, 0, 0, 0);
f->glyphs[c].texMinX = texcoord[0];
f->glyphs[c].texMinY = texcoord[1];
f->glyphs[c].texMaxX = texcoord[2];
f->glyphs[c].texMaxY = texcoord[3];
}
int
Font::UnicodeTextMaxAdvance(const char16_t *text, int w)
{
int count = 0;
int adv;
while (w > 0)
{
if (text[count] == u'\0') break;
TTF_GlyphMetrics(mFont, text[count], NULL, NULL, NULL, NULL, &adv);
if (w < adv) break;
w -= adv;
++ count;
}
return count;
}
static void OutputChar(Uint16 t, int x, int y, unsigned char color)
{
color &= 0xf;
SDL_Surface * glyph = t<0x80?glyph_cache[t][color]:(fontblending?TTF_RenderGlyph_Blended:TTF_RenderGlyph_Solid)(font, t, windowsPalette[color]);
if(glyph)
{
int minx=0, maxy=0, dx=0, dy = 0;
if( 0==TTF_GlyphMetrics(font, t, &minx, NULL, NULL, &maxy, NULL))
{
dx = minx;
dy = TTF_FontAscent(font)-maxy+ttf_height_hack;
SDL_Rect rect;
rect.x = x+dx; rect.y = y+dy; rect.w = fontwidth; rect.h = fontheight;
SDL_BlitSurface(glyph, NULL, screen, &rect);
}
if(t>=0x80) SDL_FreeSurface(glyph);
}
}
static void OutputChar(char t, int x, int y, int n, unsigned char color)
{
unsigned char ch = t & 0x7f;
color &= 0xf;
SDL_Surface * glyph = glyph_cache[ch][color];
if(glyph)
{
int minx=0, maxy=0, dx=0, dy = 0;
if( 0==TTF_GlyphMetrics(font, ch, &minx, NULL, NULL, &maxy, NULL))
{
dx = minx;
dy = TTF_FontAscent(font)-maxy+ttf_height_hack;
SDL_Rect rect;
rect.x = x+dx; rect.y = y+dy; rect.w = fontwidth; rect.h = fontheight;
SDL_BlitSurface(glyph, NULL, screen, &rect);
}
}
}
static void OutputFontChar(Uint16 t, int x, int y, unsigned char color)
{
color &= 0xf;
bool created = false;
SDL_Texture * glyph;
int height = 0;
if(t < 0x80) {
glyph = glyph_cache[t][color];
height = glyph_height[t];
} else {
//create the texture instead
SDL_Surface *sglyph = (fontblending ? TTF_RenderGlyph_Blended
: TTF_RenderGlyph_Solid) (font, t, windowsPalette[color]);
glyph = SDL_CreateTextureFromSurface(renderer,sglyph);
height = sglyph->h;
SDL_FreeSurface(sglyph);
created = true;
}
if(glyph) {
int minx = 0, miny = 0, maxy = 0, dx = 0, dy = 0;
if( 0 == TTF_GlyphMetrics(font, t, &minx, NULL, &miny, &maxy, NULL))
{
dx = minx;
dy = TTF_FontAscent(font) - maxy + ttf_height_hack;
SDL_Rect rect;
rect.x = x + dx;
rect.y = y + dy;
//these are not fontwidth/fontheight...
rect.w = fontwidth;
rect.h = height;
SDL_RenderCopy(renderer,glyph,NULL,&rect);
}
if(created) {
SDL_DestroyTexture(glyph);
}
}
}
int Font::Load( const char *file, int size ) {
// SDL_ttf segfaults if the font is not present...
if ( File::Exists( file ) ) {
f = TTF_OpenFont( file, size );
if ( f ) {
col = Color(CF_COLOR_WHITE);
TTF_SetFontStyle( f, TTF_STYLE_BOLD );
// this is an ugly hack and rather error prone...
int minx, maxx;
TTF_GlyphMetrics( f, 'w', &minx, &maxx, 0, 0, 0 );
width = maxx - minx;
height = TTF_FontHeight( f );
return 0;
}
}
return -1;
}
int LOBJECT_METHOD(getGlyphMetrics, TTF_Font * font){
if (state.is_number(1)){
Uint16 glyph = static_cast<Uint16>(state.to_integer(1));
int minx = 0;
int maxx = 0;
int miny = 0;
int maxy = 0;
int advance = 0;
int result = TTF_GlyphMetrics(font, glyph, &minx, &maxx, &miny, &maxy, &advance);
if (result == 0){
state.push_integer(minx);
state.push_integer(maxx);
state.push_integer(miny);
state.push_integer(maxy);
state.push_integer(advance);
return 5;
}else{
state.push_boolean(false);
return 1;
}
}
return 0;
}
void Font::LoadChar( char c )
{
GLfloat texcoord[ 4 ] = { 0.0f, 0.0f, 0.0f, 0.0f };
char letter[ 2 ] = { 0, 0 };
if( ! Glyphs[ (unsigned char) c ].Pic )
{
SDL_Surface *g0 = NULL;
SDL_Surface *g1 = NULL;
letter[ 0 ] = c;
TTF_GlyphMetrics( TTFont, (Uint16) c,
&Glyphs[ (unsigned char) c ].MinX, &Glyphs[ (unsigned char) c ].MaxX,
&Glyphs[ (unsigned char) c ].MinY, &Glyphs[ (unsigned char) c ].MaxY,
&Glyphs[ (unsigned char) c ].Advance );
SDL_Color foreground = { 255, 255, 255, 255 };
g0 = TTF_RenderText_Blended( TTFont, letter, foreground );
if( g0 )
{
g1 = SDL_DisplayFormatAlpha( g0 );
SDL_FreeSurface( g0 );
}
if( g1 )
{
Glyphs[ (unsigned char) c ].Pic = g1;
Glyphs[ (unsigned char) c ].Tex = Raptor::Game->Gfx.LoadTexture( g1, texcoord ); // FIXME?
Glyphs[ (unsigned char) c ].TexMinX = texcoord[ 0 ];
Glyphs[ (unsigned char) c ].TexMinY = texcoord[ 1 ];
Glyphs[ (unsigned char) c ].TexMaxX = texcoord[ 2 ];
Glyphs[ (unsigned char) c ].TexMaxY = texcoord[ 3 ];
}
}
}
