const Sprite *GetGlyph(FontSize size, WChar key)
{
FT_Face face = GetFontFace(size);
FT_GlyphSlot slot;
GlyphEntry new_glyph;
GlyphEntry *glyph;
SpriteLoader::Sprite sprite;
int width;
int height;
int x;
int y;
assert(IsPrintable(key));
/* Bail out if no face loaded, or for our special characters */
if (face == NULL || (key >= SCC_SPRITE_START && key <= SCC_SPRITE_END)) {
SpriteID sprite = GetUnicodeGlyph(size, key);
if (sprite == 0) sprite = GetUnicodeGlyph(size, '?');
/* Load the sprite if it's known. */
if (sprite != 0) return GetSprite(sprite, ST_FONT);
/* For the 'rare' case there is no font available at all. */
if (face == NULL) error("No sprite font and no real font either... bailing!");
/* Use the '?' from the freetype font. */
key = '?';
}
/* Check for the glyph in our cache */
glyph = GetGlyphPtr(size, key);
if (glyph != NULL && glyph->sprite != NULL) return glyph->sprite;
slot = face->glyph;
bool aa = GetFontAAState(size);
FT_UInt glyph_index = FT_Get_Char_Index(face, key);
if (glyph_index == 0) {
if (key == '?') {
/* The font misses the '?' character. Use sprite font. */
SpriteID sprite = GetUnicodeGlyph(size, key);
Sprite *spr = (Sprite*)GetRawSprite(sprite, ST_FONT, AllocateFont);
assert(spr != NULL);
new_glyph.sprite = spr;
new_glyph.width = spr->width + (size != FS_NORMAL);
SetGlyphPtr(size, key, &new_glyph, false);
return new_glyph.sprite;
} else {
/* Use '?' for missing characters. */
GetGlyph(size, '?');
glyph = GetGlyphPtr(size, '?');
SetGlyphPtr(size, key, glyph, true);
return glyph->sprite;
}
}
FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
FT_Render_Glyph(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 */
width = max(1, slot->bitmap.width + (size == FS_NORMAL));
height = max(1, slot->bitmap.rows + (size == 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 */
sprite.AllocateData(width * height);
sprite.type = ST_FONT;
sprite.width = width;
sprite.height = height;
sprite.x_offs = slot->bitmap_left;
sprite.y_offs = _ascender[size] - slot->bitmap_top;
/* Draw shadow for medium size */
if (size == FS_NORMAL && !aa) {
for (y = 0; y < slot->bitmap.rows; y++) {
for (x = 0; x < 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 (y = 0; y < slot->bitmap.rows; y++) {
for (x = 0; x < 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 = BlitterFactoryBase::GetCurrentBlitter()->Encode(&sprite, AllocateFont);
new_glyph.width = slot->advance.x >> 6;
SetGlyphPtr(size, key, &new_glyph);
return new_glyph.sprite;
}
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 */
int width = max(1, slot->bitmap.width + (this->fs == FS_NORMAL));
int height = max(1, 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 (int y = 0; y < slot->bitmap.rows; y++) {
for (int x = 0; x < 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 (int y = 0; y < slot->bitmap.rows; y++) {
for (int x = 0; x < 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;
}
const Sprite *GetGlyph(FontSize size, WChar key)
{
FT_Face face = GetFontFace(size);
FT_GlyphSlot slot;
GlyphEntry new_glyph;
GlyphEntry *glyph;
SpriteLoader::Sprite sprite;
int width;
int height;
int x;
int y;
assert(IsPrintable(key));
/* Bail out if no face loaded, or for our special characters */
if (face == NULL || (key >= SCC_SPRITE_START && key <= SCC_SPRITE_END)) {
SpriteID sprite = GetUnicodeGlyph(size, key);
if (sprite == 0) sprite = GetUnicodeGlyph(size, '?');
return GetSprite(sprite, ST_FONT);
}
/* Check for the glyph in our cache */
glyph = GetGlyphPtr(size, key);
if (glyph != NULL && glyph->sprite != NULL) return glyph->sprite;
slot = face->glyph;
bool aa = GetFontAAState(size);
FT_Load_Char(face, key, FT_LOAD_DEFAULT);
FT_Render_Glyph(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 */
width = max(1, slot->bitmap.width + (size == FS_NORMAL));
height = max(1, slot->bitmap.rows + (size == FS_NORMAL));
/* FreeType has rendered the glyph, now we allocate a sprite and copy the image into it */
sprite.AllocateData(width * height);
sprite.width = width;
sprite.height = height;
sprite.x_offs = slot->bitmap_left;
sprite.y_offs = _ascender[size] - slot->bitmap_top;
/* Draw shadow for medium size */
if (size == FS_NORMAL) {
for (y = 0; y < slot->bitmap.rows; y++) {
for (x = 0; x < 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 (y = 0; y < slot->bitmap.rows; y++) {
for (x = 0; x < 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 = BlitterFactoryBase::GetCurrentBlitter()->Encode(&sprite, AllocateFont);
new_glyph.width = slot->advance.x >> 6;
SetGlyphPtr(size, key, &new_glyph);
return new_glyph.sprite;
}
