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Location: cpp/openttd-patchpack/source/src/fontcache.cpp - annotation
r22389:1757ebccc162
21.0 KiB
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(svn r27584) -Codechange: Add some assertions about Vehicle::cargo_payment.
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r20454:35a010f0c655 r20454:35a010f0c655 r20454:35a010f0c655 r20454:35a010f0c655 r20454:35a010f0c655 r20454:35a010f0c655 r20478:8c1e52fed405 r20454:35a010f0c655 r20478:8c1e52fed405 r20454:35a010f0c655 r20454:35a010f0c655 r20454:35a010f0c655 r5584:545d748cc681 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 r20430:6112801da287 | /* $Id$ */
/*
* 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 fontcache.cpp Cache for characters from fonts. */
#include "stdafx.h"
#include "fontcache.h"
#include "fontdetection.h"
#include "blitter/factory.hpp"
#include "core/math_func.hpp"
#include "core/smallmap_type.hpp"
#include "strings_func.h"
#include "zoom_type.h"
#include "gfx_layout.h"
#include "zoom_func.h"
#include "table/sprites.h"
#include "table/control_codes.h"
#include "table/unicode.h"
#include "safeguards.h"
static const int ASCII_LETTERSTART = 32; ///< First printable ASCII letter.
static const int MAX_FONT_SIZE = 72; ///< Maximum font size.
/** Default heights for the different sizes of fonts. */
static const int _default_font_height[FS_END] = {10, 6, 18, 10};
static const int _default_font_ascender[FS_END] = { 8, 5, 15, 8};
/**
* Create a new font cache.
* @param fs The size of the font.
*/
FontCache::FontCache(FontSize fs) : parent(FontCache::Get(fs)), fs(fs), height(_default_font_height[fs]),
ascender(_default_font_ascender[fs]), descender(_default_font_ascender[fs] - _default_font_height[fs]),
units_per_em(1)
{
assert(parent == NULL || this->fs == parent->fs);
FontCache::caches[this->fs] = this;
Layouter::ResetFontCache(this->fs);
}
/** Clean everything up. */
FontCache::~FontCache()
{
assert(this->fs == parent->fs);
FontCache::caches[this->fs] = this->parent;
Layouter::ResetFontCache(this->fs);
}
/**
* Get height of a character for a given font size.
* @param size Font size to get height of
* @return Height of characters in the given font (pixels)
*/
int GetCharacterHeight(FontSize size)
{
return FontCache::Get(size)->GetHeight();
}
/** Font cache for fonts that are based on a freetype font. */
class SpriteFontCache : public FontCache {
private:
SpriteID **glyph_to_spriteid_map; ///< Mapping of glyphs to sprite IDs.
void ClearGlyphToSpriteMap();
public:
SpriteFontCache(FontSize fs);
~SpriteFontCache();
virtual SpriteID GetUnicodeGlyph(WChar key);
virtual void SetUnicodeGlyph(WChar key, SpriteID sprite);
virtual void InitializeUnicodeGlyphMap();
virtual void ClearFontCache();
virtual const Sprite *GetGlyph(GlyphID key);
virtual uint GetGlyphWidth(GlyphID key);
virtual int GetHeight() const;
virtual bool GetDrawGlyphShadow();
virtual GlyphID MapCharToGlyph(WChar key) { assert(IsPrintable(key)); return SPRITE_GLYPH | key; }
virtual const void *GetFontTable(uint32 tag, size_t &length) { length = 0; return NULL; }
virtual const char *GetFontName() { return "sprite"; }
};
/**
* Create a new sprite font cache.
* @param fs The font size to create the cache for.
*/
SpriteFontCache::SpriteFontCache(FontSize fs) : FontCache(fs), glyph_to_spriteid_map(NULL)
{
this->InitializeUnicodeGlyphMap();
}
/**
* Free everything we allocated.
*/
SpriteFontCache::~SpriteFontCache()
{
this->ClearGlyphToSpriteMap();
}
SpriteID SpriteFontCache::GetUnicodeGlyph(GlyphID key)
{
if (this->glyph_to_spriteid_map[GB(key, 8, 8)] == NULL) return 0;
return this->glyph_to_spriteid_map[GB(key, 8, 8)][GB(key, 0, 8)];
}
void SpriteFontCache::SetUnicodeGlyph(GlyphID key, SpriteID sprite)
{
if (this->glyph_to_spriteid_map == NULL) this->glyph_to_spriteid_map = CallocT<SpriteID*>(256);
if (this->glyph_to_spriteid_map[GB(key, 8, 8)] == NULL) this->glyph_to_spriteid_map[GB(key, 8, 8)] = CallocT<SpriteID>(256);
this->glyph_to_spriteid_map[GB(key, 8, 8)][GB(key, 0, 8)] = sprite;
}
void SpriteFontCache::InitializeUnicodeGlyphMap()
{
/* Clear out existing glyph map if it exists */
this->ClearGlyphToSpriteMap();
SpriteID base;
switch (this->fs) {
default: NOT_REACHED();
case FS_MONO: // Use normal as default for mono spaced font, i.e. FALL THROUGH
case FS_NORMAL: base = SPR_ASCII_SPACE; break;
case FS_SMALL: base = SPR_ASCII_SPACE_SMALL; break;
case FS_LARGE: base = SPR_ASCII_SPACE_BIG; break;
}
for (uint i = ASCII_LETTERSTART; i < 256; i++) {
SpriteID sprite = base + i - ASCII_LETTERSTART;
if (!SpriteExists(sprite)) continue;
this->SetUnicodeGlyph(i, sprite);
this->SetUnicodeGlyph(i + SCC_SPRITE_START, sprite);
}
for (uint i = 0; i < lengthof(_default_unicode_map); i++) {
byte key = _default_unicode_map[i].key;
if (key == CLRA) {
/* Clear the glyph. This happens if the glyph at this code point
* is non-standard and should be accessed by an SCC_xxx enum
* entry only. */
this->SetUnicodeGlyph(_default_unicode_map[i].code, 0);
} else {
SpriteID sprite = base + key - ASCII_LETTERSTART;
this->SetUnicodeGlyph(_default_unicode_map[i].code, sprite);
}
}
}
/**
* Clear the glyph to sprite mapping.
*/
void SpriteFontCache::ClearGlyphToSpriteMap()
{
if (this->glyph_to_spriteid_map == NULL) return;
for (uint i = 0; i < 256; i++) {
free(this->glyph_to_spriteid_map[i]);
}
free(this->glyph_to_spriteid_map);
this->glyph_to_spriteid_map = NULL;
}
void SpriteFontCache::ClearFontCache()
{
Layouter::ResetFontCache(this->fs);
}
const Sprite *SpriteFontCache::GetGlyph(GlyphID key)
{
SpriteID sprite = this->GetUnicodeGlyph(key);
if (sprite == 0) sprite = this->GetUnicodeGlyph('?');
return GetSprite(sprite, ST_FONT);
}
uint SpriteFontCache::GetGlyphWidth(GlyphID key)
{
SpriteID sprite = this->GetUnicodeGlyph(key);
if (sprite == 0) sprite = this->GetUnicodeGlyph('?');
return SpriteExists(sprite) ? GetSprite(sprite, ST_FONT)->width + ScaleGUITrad(this->fs != FS_NORMAL ? 1 : 0) : 0;
}
int SpriteFontCache::GetHeight() const
{
return ScaleGUITrad(this->height);
}
bool SpriteFontCache::GetDrawGlyphShadow()
{
return false;
}
/* static */ FontCache *FontCache::caches[FS_END] = { new SpriteFontCache(FS_NORMAL), new SpriteFontCache(FS_SMALL), new SpriteFontCache(FS_LARGE), new SpriteFontCache(FS_MONO) };
#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 FontCache {
private:
FT_Face face; ///< The font face associated with this font.
typedef SmallMap<uint32, SmallPair<size_t, const void*> > FontTable; ///< Table with font table cache
FontTable font_tables; ///< Cached font tables.
/** Container for information about a glyph. */
struct GlyphEntry {
Sprite *sprite; ///< The loaded sprite.
byte width; ///< The width of the glyph.
bool duplicate; ///< Whether this glyph entry is a duplicate, i.e. may this be freed?
};
/**
* The glyph cache. This is structured to reduce memory consumption.
* 1) There is a 'segment' table for each font size.
* 2) Each segment table is a discrete block of characters.
* 3) Each block contains 256 (aligned) characters sequential characters.
*
* The cache is accessed in the following way:
* For character 0x0041 ('A'): glyph_to_sprite[0x00][0x41]
* For character 0x20AC (Euro): glyph_to_sprite[0x20][0xAC]
*
* Currently only 256 segments are allocated, "limiting" us to 65536 characters.
* This can be simply changed in the two functions Get & SetGlyphPtr.
*/
GlyphEntry **glyph_to_sprite;
GlyphEntry *GetGlyphPtr(GlyphID key);
void SetGlyphPtr(GlyphID key, const GlyphEntry *glyph, bool duplicate = false);
public:
FreeTypeFontCache(FontSize fs, FT_Face face, int pixels);
~FreeTypeFontCache();
virtual SpriteID GetUnicodeGlyph(WChar key) { return this->parent->GetUnicodeGlyph(key); }
virtual void SetUnicodeGlyph(WChar key, SpriteID sprite) { this->parent->SetUnicodeGlyph(key, sprite); }
virtual void InitializeUnicodeGlyphMap() { this->parent->InitializeUnicodeGlyphMap(); }
virtual void ClearFontCache();
virtual const Sprite *GetGlyph(GlyphID key);
virtual uint GetGlyphWidth(GlyphID key);
virtual bool GetDrawGlyphShadow();
virtual GlyphID MapCharToGlyph(WChar key);
virtual const void *GetFontTable(uint32 tag, size_t &length);
virtual const char *GetFontName() { return face->family_name; }
};
FT_Library _library = NULL;
FreeTypeSettings _freetype;
static const byte FACE_COLOUR = 1;
static const byte SHADOW_COLOUR = 2;
/**
* 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) : FontCache(fs), face(face), glyph_to_sprite(NULL)
{
assert(face != NULL);
if (pixels == 0) {
/* Try to determine a good height based on the minimal height recommended by the font. */
pixels = _default_font_height[this->fs];
TT_Header *head = (TT_Header *)FT_Get_Sfnt_Table(this->face, ft_sfnt_head);
if (head != NULL) {
/* Font height is minimum height plus the difference between the default
* height for this font size and the small size. */
int diff = _default_font_height[this->fs] - _default_font_height[FS_SMALL];
pixels = Clamp(min(head->Lowest_Rec_PPEM, 20) + diff, _default_font_height[this->fs], MAX_FONT_SIZE);
}
}
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(freetype, 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.
*/
static void LoadFreeTypeFont(FontSize fs)
{
FreeTypeSubSetting *settings = NULL;
switch (fs) {
default: NOT_REACHED();
case FS_SMALL: settings = &_freetype.small; break;
case FS_NORMAL: settings = &_freetype.medium; break;
case FS_LARGE: settings = &_freetype.large; break;
case FS_MONO: settings = &_freetype.mono; break;
}
if (StrEmpty(settings->font)) return;
if (_library == NULL) {
if (FT_Init_FreeType(&_library) != FT_Err_Ok) {
ShowInfoF("Unable to initialize FreeType, using sprite fonts instead");
return;
}
DEBUG(freetype, 2, "Initialized");
}
FT_Face face = NULL;
FT_Error error = FT_New_Face(_library, settings->font, 0, &face);
if (error != FT_Err_Ok) error = GetFontByFaceName(settings->font, &face);
if (error == FT_Err_Ok) {
DEBUG(freetype, 2, "Requested '%s', using '%s %s'", settings->font, 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 != NULL) {
error = FT_Set_Charmap(face, found);
if (error == FT_Err_Ok) goto found_face;
}
}
}
FT_Done_Face(face);
static const char *SIZE_TO_NAME[] = { "medium", "small", "large", "mono" };
ShowInfoF("Unable to use '%s' for %s font, FreeType reported error 0x%X, using sprite font instead", settings->font, SIZE_TO_NAME[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->ClearFontCache();
for (FontTable::iterator iter = this->font_tables.Begin(); iter != this->font_tables.End(); iter++) {
free(iter->second.second);
}
}
/**
* Reset cached glyphs.
*/
void FreeTypeFontCache::ClearFontCache()
{
if (this->glyph_to_sprite == NULL) return;
for (int i = 0; i < 256; i++) {
if (this->glyph_to_sprite[i] == NULL) continue;
for (int j = 0; j < 256; j++) {
if (this->glyph_to_sprite[i][j].duplicate) continue;
free(this->glyph_to_sprite[i][j].sprite);
}
free(this->glyph_to_sprite[i]);
}
free(this->glyph_to_sprite);
this->glyph_to_sprite = NULL;
Layouter::ResetFontCache(this->fs);
}
FreeTypeFontCache::GlyphEntry *FreeTypeFontCache::GetGlyphPtr(GlyphID key)
{
if (this->glyph_to_sprite == NULL) return NULL;
if (this->glyph_to_sprite[GB(key, 8, 8)] == NULL) return NULL;
return &this->glyph_to_sprite[GB(key, 8, 8)][GB(key, 0, 8)];
}
void FreeTypeFontCache::SetGlyphPtr(GlyphID key, const GlyphEntry *glyph, bool duplicate)
{
if (this->glyph_to_sprite == NULL) {
DEBUG(freetype, 3, "Allocating root glyph cache for size %u", this->fs);
this->glyph_to_sprite = CallocT<GlyphEntry*>(256);
}
if (this->glyph_to_sprite[GB(key, 8, 8)] == NULL) {
DEBUG(freetype, 3, "Allocating glyph cache for range 0x%02X00, size %u", GB(key, 8, 8), this->fs);
this->glyph_to_sprite[GB(key, 8, 8)] = CallocT<GlyphEntry>(256);
}
DEBUG(freetype, 4, "Set glyph for unicode character 0x%04X, size %u", key, this->fs);
this->glyph_to_sprite[GB(key, 8, 8)][GB(key, 0, 8)].sprite = glyph->sprite;
this->glyph_to_sprite[GB(key, 8, 8)][GB(key, 0, 8)].width = glyph->width;
this->glyph_to_sprite[GB(key, 8, 8)][GB(key, 0, 8)].duplicate = duplicate;
}
static void *AllocateFont(size_t size)
{
return MallocT<byte>(size);
}
/* Check if a glyph should be rendered with antialiasing */
static bool GetFontAAState(FontSize size)
{
/* AA is only supported for 32 bpp */
if (BlitterFactory::GetCurrentBlitter()->GetScreenDepth() != 32) return false;
switch (size) {
default: NOT_REACHED();
case FS_NORMAL: return _freetype.medium.aa;
case FS_SMALL: return _freetype.small.aa;
case FS_LARGE: return _freetype.large.aa;
case FS_MONO: return _freetype.mono.aa;
}
}
const Sprite *FreeTypeFontCache::GetGlyph(GlyphID key)
{
if ((key & SPRITE_GLYPH) != 0) return parent->GetGlyph(key);
/* Check for the glyph in our cache */
GlyphEntry *glyph = this->GetGlyphPtr(key);
if (glyph != NULL && glyph->sprite != NULL) return glyph->sprite;
FT_GlyphSlot slot = this->face->glyph;
bool aa = GetFontAAState(this->fs);
GlyphEntry new_glyph;
if (key == 0) {
GlyphID question_glyph = this->MapCharToGlyph('?');
if (question_glyph == 0) {
/* The font misses the '?' character. Use built-in sprite.
* Note: We cannot use the baseset as this also has to work in the bootstrap GUI. */
#define CPSET { 0, 0, 0, 0, 1 }
#define CP___ { 0, 0, 0, 0, 0 }
static SpriteLoader::CommonPixel builtin_questionmark_data[10 * 8] = {
CP___, CP___, CPSET, CPSET, CPSET, CPSET, CP___, CP___,
CP___, CPSET, CPSET, CP___, CP___, CPSET, CPSET, CP___,
CP___, CP___, CP___, CP___, CP___, CPSET, CPSET, CP___,
CP___, CP___, CP___, CP___, CPSET, CPSET, CP___, CP___,
CP___, CP___, CP___, CPSET, CPSET, CP___, CP___, CP___,
CP___, CP___, CP___, CPSET, CPSET, CP___, CP___, CP___,
CP___, CP___, CP___, CPSET, CPSET, CP___, CP___, CP___,
CP___, CP___, CP___, CP___, CP___, CP___, CP___, CP___,
CP___, CP___, CP___, CPSET, CPSET, CP___, CP___, CP___,
CP___, CP___, CP___, CPSET, CPSET, CP___, CP___, CP___,
};
#undef CPSET
#undef CP___
static const SpriteLoader::Sprite builtin_questionmark = {
10, // height
8, // width
0, // x_offs
0, // y_offs
ST_FONT,
builtin_questionmark_data
};
Sprite *spr = BlitterFactory::GetCurrentBlitter()->Encode(&builtin_questionmark, AllocateFont);
assert(spr != NULL);
new_glyph.sprite = spr;
new_glyph.width = spr->width + (this->fs != FS_NORMAL);
this->SetGlyphPtr(key, &new_glyph, false);
return new_glyph.sprite;
} else {
/* Use '?' for missing characters. */
this->GetGlyph(question_glyph);
glyph = this->GetGlyphPtr(question_glyph);
this->SetGlyphPtr(key, glyph, true);
return glyph->sprite;
}
}
FT_Load_Glyph(this->face, key, FT_LOAD_DEFAULT);
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 pixel for the shadow on the medium font. Our sprite must be at least 1x1 pixel */
uint width = max(1U, (uint)slot->bitmap.width + (this->fs == FS_NORMAL));
uint height = max(1U, (uint)slot->bitmap.rows + (this->fs == FS_NORMAL));
/* Limit glyph size to prevent overflows later on. */
if (width > 256 || height > 256) 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, width * height);
sprite.type = ST_FONT;
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 (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[1 + x + (1 + y) * sprite.width].m = SHADOW_COLOUR;
sprite.data[1 + x + (1 + y) * sprite.width].a = aa ? slot->bitmap.buffer[x + y * slot->bitmap.pitch] : 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;
}
}
}
new_glyph.sprite = BlitterFactory::GetCurrentBlitter()->Encode(&sprite, AllocateFont);
new_glyph.width = slot->advance.x >> 6;
this->SetGlyphPtr(key, &new_glyph);
return new_glyph.sprite;
}
bool FreeTypeFontCache::GetDrawGlyphShadow()
{
return this->fs == FS_NORMAL && GetFontAAState(FS_NORMAL);
}
uint FreeTypeFontCache::GetGlyphWidth(GlyphID key)
{
if ((key & SPRITE_GLYPH) != 0) return this->parent->GetGlyphWidth(key);
GlyphEntry *glyph = this->GetGlyphPtr(key);
if (glyph == NULL || glyph->sprite == NULL) {
this->GetGlyph(key);
glyph = this->GetGlyphPtr(key);
}
return glyph->width;
}
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::GetFontTable(uint32 tag, size_t &length)
{
const FontTable::iterator iter = this->font_tables.Find(tag);
if (iter != this->font_tables.End()) {
length = iter->second.first;
return iter->second.second;
}
FT_ULong len = 0;
FT_Byte *result = NULL;
FT_Load_Sfnt_Table(this->face, tag, 0, NULL, &len);
if (len > 0) {
result = MallocT<FT_Byte>(len);
FT_Load_Sfnt_Table(this->face, tag, 0, result, &len);
}
length = len;
this->font_tables.Insert(tag, SmallPair<size_t, const void *>(length, result));
return result;
}
#endif /* WITH_FREETYPE */
/**
* (Re)initialize the freetype related things, i.e. load the non-sprite fonts.
* @param monospace Whether to initialise the monospace or regular fonts.
*/
void InitFreeType(bool monospace)
{
for (FontSize fs = FS_BEGIN; fs < FS_END; fs++) {
if (monospace != (fs == FS_MONO)) continue;
FontCache *fc = FontCache::Get(fs);
if (fc->HasParent()) delete fc;
#ifdef WITH_FREETYPE
LoadFreeTypeFont(fs);
#endif
}
}
/**
* Free everything allocated w.r.t. fonts.
*/
void UninitFreeType()
{
for (FontSize fs = FS_BEGIN; fs < FS_END; fs++) {
FontCache *fc = FontCache::Get(fs);
if (fc->HasParent()) delete fc;
}
#ifdef WITH_FREETYPE
FT_Done_FreeType(_library);
_library = NULL;
#endif /* WITH_FREETYPE */
}
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