Files
@ r26940:92b381a46f34
Branch filter:
Location: cpp/openttd-patchpack/source/src/fontcache/freetypefontcache.cpp - annotation
r26940:92b381a46f34
10.5 KiB
text/x-c
Add: maximum number of companies allowed to the client list
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 | r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26657:8c37c30c8ee3 r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26657:8c37c30c8ee3 r26581:78b3ad91bfd1 r26581:78b3ad91bfd1 r26400:bc4531010a6d r26400:bc4531010a6d r26581:78b3ad91bfd1 r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26673:f6a0bb2e0bfa r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26673:f6a0bb2e0bfa r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26578:600ca52b97e6 r26578:600ca52b97e6 r26578:600ca52b97e6 r26578:600ca52b97e6 r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26711:a4f8e9c41dea r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26578:600ca52b97e6 r26578:600ca52b97e6 r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d r26400:bc4531010a6d | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file freetypefontcache.cpp FreeType font cache implementation. */
#include "../stdafx.h"
#include "../debug.h"
#include "../fontcache.h"
#include "../fontdetection.h"
#include "../blitter/factory.hpp"
#include "../core/math_func.hpp"
#include "../zoom_func.h"
#include "../fileio_func.h"
#include "truetypefontcache.h"
#include "../table/control_codes.h"
#include "../safeguards.h"
#ifdef WITH_FREETYPE
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include FT_TRUETYPE_TABLES_H
/** Font cache for fonts that are based on a freetype font. */
class FreeTypeFontCache : public TrueTypeFontCache {
private:
FT_Face face; ///< The font face associated with this font.
void SetFontSize(FontSize fs, FT_Face face, int pixels);
virtual const void *InternalGetFontTable(uint32 tag, size_t &length);
virtual const Sprite *InternalGetGlyph(GlyphID key, bool aa);
public:
FreeTypeFontCache(FontSize fs, FT_Face face, int pixels);
~FreeTypeFontCache();
virtual void ClearFontCache();
virtual GlyphID MapCharToGlyph(WChar key);
virtual const char *GetFontName() { return face->family_name; }
virtual bool IsBuiltInFont() { return false; }
};
FT_Library _library = nullptr;
/**
* Create a new FreeTypeFontCache.
* @param fs The font size that is going to be cached.
* @param face The font that has to be loaded.
* @param pixels The number of pixels this font should be high.
*/
FreeTypeFontCache::FreeTypeFontCache(FontSize fs, FT_Face face, int pixels) : TrueTypeFontCache(fs, pixels), face(face)
{
assert(face != nullptr);
this->SetFontSize(fs, face, pixels);
}
void FreeTypeFontCache::SetFontSize(FontSize fs, FT_Face face, int pixels)
{
if (pixels == 0) {
/* Try to determine a good height based on the minimal height recommended by the font. */
int scaled_height = ScaleGUITrad(FontCache::GetDefaultFontHeight(this->fs));
pixels = scaled_height;
TT_Header *head = (TT_Header *)FT_Get_Sfnt_Table(this->face, ft_sfnt_head);
if (head != nullptr) {
/* Font height is minimum height plus the difference between the default
* height for this font size and the small size. */
int diff = scaled_height - ScaleGUITrad(FontCache::GetDefaultFontHeight(FS_SMALL));
/* Clamp() is not used as scaled_height could be greater than MAX_FONT_SIZE, which is not permitted in Clamp(). */
pixels = std::min(std::max(std::min<int>(head->Lowest_Rec_PPEM, MAX_FONT_MIN_REC_SIZE) + diff, scaled_height), MAX_FONT_SIZE);
}
} else {
pixels = ScaleGUITrad(pixels);
}
this->used_size = pixels;
FT_Error err = FT_Set_Pixel_Sizes(this->face, 0, pixels);
if (err != FT_Err_Ok) {
/* Find nearest size to that requested */
FT_Bitmap_Size *bs = this->face->available_sizes;
int i = this->face->num_fixed_sizes;
if (i > 0) { // In pathetic cases one might get no fixed sizes at all.
int n = bs->height;
FT_Int chosen = 0;
for (; --i; bs++) {
if (abs(pixels - bs->height) >= abs(pixels - n)) continue;
n = bs->height;
chosen = this->face->num_fixed_sizes - i;
}
/* Don't use FT_Set_Pixel_Sizes here - it might give us another
* error, even though the size is available (FS#5885). */
err = FT_Select_Size(this->face, chosen);
}
}
if (err == FT_Err_Ok) {
this->units_per_em = this->face->units_per_EM;
this->ascender = this->face->size->metrics.ascender >> 6;
this->descender = this->face->size->metrics.descender >> 6;
this->height = this->ascender - this->descender;
} else {
/* Both FT_Set_Pixel_Sizes and FT_Select_Size failed. */
Debug(fontcache, 0, "Font size selection failed. Using FontCache defaults.");
}
}
/**
* Loads the freetype font.
* First type to load the fontname as if it were a path. If that fails,
* try to resolve the filename of the font using fontconfig, where the
* format is 'font family name' or 'font family name, font style'.
* @param fs The font size to load.
*/
void LoadFreeTypeFont(FontSize fs)
{
FontCacheSubSetting *settings = GetFontCacheSubSetting(fs);
if (settings->font.empty()) return;
if (_library == nullptr) {
if (FT_Init_FreeType(&_library) != FT_Err_Ok) {
ShowInfoF("Unable to initialize FreeType, using sprite fonts instead");
return;
}
Debug(fontcache, 2, "Initialized");
}
const char *font_name = settings->font.c_str();
FT_Face face = nullptr;
/* If font is an absolute path to a ttf, try loading that first. */
FT_Error error = FT_New_Face(_library, font_name, 0, &face);
#if defined(WITH_COCOA)
extern void MacOSRegisterExternalFont(const char *file_path);
if (error == FT_Err_Ok) MacOSRegisterExternalFont(font_name);
#endif
if (error != FT_Err_Ok) {
/* Check if font is a relative filename in one of our search-paths. */
std::string full_font = FioFindFullPath(BASE_DIR, font_name);
if (!full_font.empty()) {
error = FT_New_Face(_library, full_font.c_str(), 0, &face);
#if defined(WITH_COCOA)
if (error == FT_Err_Ok) MacOSRegisterExternalFont(full_font.c_str());
#endif
}
}
/* Try loading based on font face name (OS-wide fonts). */
if (error != FT_Err_Ok) error = GetFontByFaceName(font_name, &face);
if (error == FT_Err_Ok) {
Debug(fontcache, 2, "Requested '{}', using '{} {}'", font_name, face->family_name, face->style_name);
/* Attempt to select the unicode character map */
error = FT_Select_Charmap(face, ft_encoding_unicode);
if (error == FT_Err_Ok) goto found_face; // Success
if (error == FT_Err_Invalid_CharMap_Handle) {
/* Try to pick a different character map instead. We default to
* the first map, but platform_id 0 encoding_id 0 should also
* be unicode (strange system...) */
FT_CharMap found = face->charmaps[0];
int i;
for (i = 0; i < face->num_charmaps; i++) {
FT_CharMap charmap = face->charmaps[i];
if (charmap->platform_id == 0 && charmap->encoding_id == 0) {
found = charmap;
}
}
if (found != nullptr) {
error = FT_Set_Charmap(face, found);
if (error == FT_Err_Ok) goto found_face;
}
}
}
FT_Done_Face(face);
ShowInfoF("Unable to use '%s' for %s font, FreeType reported error 0x%X, using sprite font instead", font_name, FontSizeToName(fs), error);
return;
found_face:
new FreeTypeFontCache(fs, face, settings->size);
}
/**
* Free everything that was allocated for this font cache.
*/
FreeTypeFontCache::~FreeTypeFontCache()
{
FT_Done_Face(this->face);
this->face = nullptr;
this->ClearFontCache();
}
/**
* Reset cached glyphs.
*/
void FreeTypeFontCache::ClearFontCache()
{
/* Font scaling might have changed, determine font size anew if it was automatically selected. */
if (this->face != nullptr) this->SetFontSize(this->fs, this->face, this->req_size);
this->TrueTypeFontCache::ClearFontCache();
}
const Sprite *FreeTypeFontCache::InternalGetGlyph(GlyphID key, bool aa)
{
FT_GlyphSlot slot = this->face->glyph;
FT_Load_Glyph(this->face, key, aa ? FT_LOAD_TARGET_NORMAL : FT_LOAD_TARGET_MONO);
FT_Render_Glyph(this->face->glyph, aa ? FT_RENDER_MODE_NORMAL : FT_RENDER_MODE_MONO);
/* Despite requesting a normal glyph, FreeType may have returned a bitmap */
aa = (slot->bitmap.pixel_mode == FT_PIXEL_MODE_GRAY);
/* Add 1 scaled pixel for the shadow on the medium font. Our sprite must be at least 1x1 pixel */
uint shadow = (this->fs == FS_NORMAL) ? ScaleGUITrad(1) : 0;
uint width = std::max(1U, (uint)slot->bitmap.width + shadow);
uint height = std::max(1U, (uint)slot->bitmap.rows + shadow);
/* Limit glyph size to prevent overflows later on. */
if (width > MAX_GLYPH_DIM || height > MAX_GLYPH_DIM) usererror("Font glyph is too large");
/* FreeType has rendered the glyph, now we allocate a sprite and copy the image into it */
SpriteLoader::Sprite sprite;
sprite.AllocateData(ZOOM_LVL_NORMAL, static_cast<size_t>(width) * height);
sprite.type = ST_FONT;
sprite.colours = (aa ? SCC_PAL | SCC_ALPHA : SCC_PAL);
sprite.width = width;
sprite.height = height;
sprite.x_offs = slot->bitmap_left;
sprite.y_offs = this->ascender - slot->bitmap_top;
/* Draw shadow for medium size */
if (this->fs == FS_NORMAL && !aa) {
for (uint y = 0; y < (uint)slot->bitmap.rows; y++) {
for (uint x = 0; x < (uint)slot->bitmap.width; x++) {
if (HasBit(slot->bitmap.buffer[(x / 8) + y * slot->bitmap.pitch], 7 - (x % 8))) {
sprite.data[shadow + x + (shadow + y) * sprite.width].m = SHADOW_COLOUR;
sprite.data[shadow + x + (shadow + y) * sprite.width].a = 0xFF;
}
}
}
}
for (uint y = 0; y < (uint)slot->bitmap.rows; y++) {
for (uint x = 0; x < (uint)slot->bitmap.width; x++) {
if (aa ? (slot->bitmap.buffer[x + y * slot->bitmap.pitch] > 0) : HasBit(slot->bitmap.buffer[(x / 8) + y * slot->bitmap.pitch], 7 - (x % 8))) {
sprite.data[x + y * sprite.width].m = FACE_COLOUR;
sprite.data[x + y * sprite.width].a = aa ? slot->bitmap.buffer[x + y * slot->bitmap.pitch] : 0xFF;
}
}
}
GlyphEntry new_glyph;
new_glyph.sprite = BlitterFactory::GetCurrentBlitter()->Encode(&sprite, SimpleSpriteAlloc);
new_glyph.width = slot->advance.x >> 6;
this->SetGlyphPtr(key, &new_glyph);
return new_glyph.sprite;
}
GlyphID FreeTypeFontCache::MapCharToGlyph(WChar key)
{
assert(IsPrintable(key));
if (key >= SCC_SPRITE_START && key <= SCC_SPRITE_END) {
return this->parent->MapCharToGlyph(key);
}
return FT_Get_Char_Index(this->face, key);
}
const void *FreeTypeFontCache::InternalGetFontTable(uint32 tag, size_t &length)
{
FT_ULong len = 0;
FT_Byte *result = nullptr;
FT_Load_Sfnt_Table(this->face, tag, 0, nullptr, &len);
if (len > 0) {
result = MallocT<FT_Byte>(len);
FT_Load_Sfnt_Table(this->face, tag, 0, result, &len);
}
length = len;
return result;
}
/**
* Free everything allocated w.r.t. freetype.
*/
void UninitFreeType()
{
FT_Done_FreeType(_library);
_library = nullptr;
}
#if !defined(_WIN32) && !defined(__APPLE__) && !defined(WITH_FONTCONFIG) && !defined(WITH_COCOA)
FT_Error GetFontByFaceName(const char *font_name, FT_Face *face) { return FT_Err_Cannot_Open_Resource; }
#endif /* !defined(_WIN32) && !defined(__APPLE__) && !defined(WITH_FONTCONFIG) && !defined(WITH_COCOA) */
#endif /* WITH_FREETYPE */
|