cairo_status_t
_cairo_scaled_font_subsets_map_glyph (cairo_scaled_font_subsets_t *subsets,
cairo_scaled_font_t *scaled_font,
unsigned long scaled_font_glyph_index,
const char * utf8,
int utf8_len,
cairo_scaled_font_subsets_glyph_t *subset_glyph)
{
cairo_sub_font_t key, *sub_font;
cairo_scaled_glyph_t *scaled_glyph;
cairo_font_face_t *font_face;
cairo_matrix_t identity;
cairo_font_options_t font_options;
cairo_scaled_font_t *unscaled_font;
cairo_int_status_t status;
int max_glyphs;
cairo_bool_t type1_font;
/* Lookup glyph in unscaled subsets */
if (subsets->type != CAIRO_SUBSETS_SCALED) {
key.is_scaled = FALSE;
_cairo_sub_font_init_key (&key, scaled_font);
sub_font = _cairo_hash_table_lookup (subsets->unscaled_sub_fonts,
&key.base);
if (sub_font != NULL) {
status = _cairo_sub_font_lookup_glyph (sub_font,
scaled_font_glyph_index,
utf8, utf8_len,
subset_glyph);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
return status;
}
}
/* Lookup glyph in scaled subsets */
key.is_scaled = TRUE;
_cairo_sub_font_init_key (&key, scaled_font);
sub_font = _cairo_hash_table_lookup (subsets->scaled_sub_fonts,
&key.base);
if (sub_font != NULL) {
status = _cairo_sub_font_lookup_glyph (sub_font,
scaled_font_glyph_index,
utf8, utf8_len,
subset_glyph);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
return status;
}
/* Glyph not found. Determine whether the glyph is outline or
* bitmap and add to the appropriate subset.
*
* glyph_index 0 (the .notdef glyph) is a special case. Some fonts
* will return CAIRO_INT_STATUS_UNSUPPORTED when doing a
* _scaled_glyph_lookup(_GLYPH_INFO_PATH). Type1-fallback creates
* empty glyphs in this case so we can put the glyph in a unscaled
* subset. */
if (scaled_font_glyph_index == 0 ||
_cairo_font_face_is_user (scaled_font->font_face)) {
status = CAIRO_STATUS_SUCCESS;
} else {
_cairo_scaled_font_freeze_cache (scaled_font);
status = _cairo_scaled_glyph_lookup (scaled_font,
scaled_font_glyph_index,
CAIRO_SCALED_GLYPH_INFO_PATH,
&scaled_glyph);
_cairo_scaled_font_thaw_cache (scaled_font);
}
if (_cairo_int_status_is_error (status))
return status;
if (status == CAIRO_INT_STATUS_SUCCESS &&
subsets->type != CAIRO_SUBSETS_SCALED &&
! _cairo_font_face_is_user (scaled_font->font_face))
{
/* Path available. Add to unscaled subset. */
key.is_scaled = FALSE;
_cairo_sub_font_init_key (&key, scaled_font);
sub_font = _cairo_hash_table_lookup (subsets->unscaled_sub_fonts,
&key.base);
if (sub_font == NULL) {
font_face = cairo_scaled_font_get_font_face (scaled_font);
cairo_matrix_init_identity (&identity);
_cairo_font_options_init_default (&font_options);
cairo_font_options_set_hint_style (&font_options, CAIRO_HINT_STYLE_NONE);
cairo_font_options_set_hint_metrics (&font_options, CAIRO_HINT_METRICS_OFF);
unscaled_font = cairo_scaled_font_create (font_face,
&identity,
&identity,
&font_options);
if (unlikely (unscaled_font->status))
return unscaled_font->status;
subset_glyph->is_scaled = FALSE;
type1_font = _cairo_type1_scaled_font_is_type1 (unscaled_font);
if (subsets->type == CAIRO_SUBSETS_COMPOSITE && !type1_font) {
max_glyphs = MAX_GLYPHS_PER_COMPOSITE_FONT;
subset_glyph->is_composite = TRUE;
} else {
max_glyphs = MAX_GLYPHS_PER_SIMPLE_FONT;
subset_glyph->is_composite = FALSE;
}
status = _cairo_sub_font_create (subsets,
unscaled_font,
subsets->num_sub_fonts,
max_glyphs,
subset_glyph->is_scaled,
subset_glyph->is_composite,
&sub_font);
if (unlikely (status)) {
cairo_scaled_font_destroy (unscaled_font);
return status;
}
status = _cairo_hash_table_insert (subsets->unscaled_sub_fonts,
&sub_font->base);
if (unlikely (status)) {
_cairo_sub_font_destroy (sub_font);
return status;
}
if (!subsets->unscaled_sub_fonts_list)
subsets->unscaled_sub_fonts_list = sub_font;
else
subsets->unscaled_sub_fonts_list_end->next = sub_font;
subsets->unscaled_sub_fonts_list_end = sub_font;
subsets->num_sub_fonts++;
}
} else {
/* No path available. Add to scaled subset. */
key.is_scaled = TRUE;
_cairo_sub_font_init_key (&key, scaled_font);
sub_font = _cairo_hash_table_lookup (subsets->scaled_sub_fonts,
&key.base);
if (sub_font == NULL) {
subset_glyph->is_scaled = TRUE;
subset_glyph->is_composite = FALSE;
if (subsets->type == CAIRO_SUBSETS_SCALED)
max_glyphs = INT_MAX;
else
max_glyphs = MAX_GLYPHS_PER_SIMPLE_FONT;
status = _cairo_sub_font_create (subsets,
cairo_scaled_font_reference (scaled_font),
subsets->num_sub_fonts,
max_glyphs,
subset_glyph->is_scaled,
subset_glyph->is_composite,
&sub_font);
if (unlikely (status)) {
cairo_scaled_font_destroy (scaled_font);
return status;
}
status = _cairo_hash_table_insert (subsets->scaled_sub_fonts,
&sub_font->base);
if (unlikely (status)) {
_cairo_sub_font_destroy (sub_font);
return status;
}
if (!subsets->scaled_sub_fonts_list)
subsets->scaled_sub_fonts_list = sub_font;
else
subsets->scaled_sub_fonts_list_end->next = sub_font;
subsets->scaled_sub_fonts_list_end = sub_font;
subsets->num_sub_fonts++;
}
}
return _cairo_sub_font_map_glyph (sub_font,
scaled_font_glyph_index,
utf8, utf8_len,
subset_glyph);
}
/**
* cairo_font_options_create:
*
* Allocates a new font options object with all options initialized
* to default values.
*
* Return value: a newly allocated #cairo_font_options_t. Free with
* cairo_font_options_destroy(). This function always returns a
* valid pointer; if memory cannot be allocated, then a special
* error object is returned where all operations on the object do nothing.
* You can check for this with cairo_font_options_status().
*
* Since: 1.0
**/
cairo_font_options_t *
cairo_font_options_create (void)
{
cairo_font_options_t *options;
options = cr_malloc (sizeof (cairo_font_options_t));
if (!options) {
_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
return (cairo_font_options_t *) &_cairo_font_options_nil;
}
_cairo_font_options_init_default (options);
return options;
}
/**
* cairo_font_options_create:
*
* Allocates a new font options object with all options initialized
* to default values.
*
* Return value: a newly allocated #cairo_font_options_t. Free with
* cairo_font_options_destroy(). This function always returns a
* valid pointer; if memory cannot be allocated, then a special
* error object is returned where all operations on the object do nothing.
* You can check for this with cairo_font_options_status().
**/
cairo_font_options_t *
cairo_font_options_create (void)
{
cairo_font_options_t *options;
//+EAWebKitChange
//11/10/2011
options = cairo_malloc (sizeof (cairo_font_options_t));
//-EAWebKitChange
if (!options) {
_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
return (cairo_font_options_t *) &_cairo_font_options_nil;
}
_cairo_font_options_init_default (options);
return options;
}
cairo_xlib_screen_info_t *
_cairo_xlib_screen_info_get (cairo_xlib_display_t *display, Screen *screen)
{
cairo_xlib_screen_info_t *info = NULL, **prev;
CAIRO_MUTEX_LOCK (display->mutex);
if (display->closed) {
CAIRO_MUTEX_UNLOCK (display->mutex);
return NULL;
}
for (prev = &display->screens; (info = *prev); prev = &(*prev)->next) {
if (info->screen == screen) {
/*
* MRU the list
*/
if (prev != &display->screens) {
*prev = info->next;
info->next = display->screens;
display->screens = info;
}
break;
}
}
CAIRO_MUTEX_UNLOCK (display->mutex);
if (info != NULL) {
info = _cairo_xlib_screen_info_reference (info);
} else {
info = malloc (sizeof (cairo_xlib_screen_info_t));
if (info != NULL) {
CAIRO_REFERENCE_COUNT_INIT (&info->ref_count, 2); /* Add one for display cache */
CAIRO_MUTEX_INIT (info->mutex);
info->display = _cairo_xlib_display_reference (display);
info->screen = screen;
info->has_render = FALSE;
_cairo_font_options_init_default (&info->font_options);
memset (info->gc, 0, sizeof (info->gc));
info->gc_needs_clip_reset = 0;
_cairo_array_init (&info->visuals,
sizeof (cairo_xlib_visual_info_t*));
if (screen) {
Display *dpy = display->display;
int event_base, error_base;
info->has_render = (XRenderQueryExtension (dpy, &event_base, &error_base) &&
(XRenderFindVisualFormat (dpy, DefaultVisual (dpy, DefaultScreen (dpy))) != 0));
_cairo_xlib_init_screen_font_options (dpy, info);
}
CAIRO_MUTEX_LOCK (display->mutex);
info->next = display->screens;
display->screens = info;
CAIRO_MUTEX_UNLOCK (display->mutex);
}
}
return info;
}
cairo_private cairo_status_t
_cairo_scaled_font_subsets_map_glyph (cairo_scaled_font_subsets_t *subsets,
cairo_scaled_font_t *scaled_font,
unsigned long scaled_font_glyph_index,
cairo_scaled_font_subsets_glyph_t *subset_glyph)
{
cairo_sub_font_t key, *sub_font;
cairo_scaled_glyph_t *scaled_glyph;
cairo_font_face_t *font_face;
cairo_matrix_t identity;
cairo_font_options_t font_options;
cairo_scaled_font_t *unscaled_font;
cairo_status_t status;
int max_glyphs;
cairo_bool_t type1_font;
/* Lookup glyph in unscaled subsets */
if (subsets->type != CAIRO_SUBSETS_SCALED) {
key.is_scaled = FALSE;
_cairo_sub_font_init_key (&key, scaled_font);
if (_cairo_hash_table_lookup (subsets->unscaled_sub_fonts, &key.base,
(cairo_hash_entry_t **) &sub_font))
{
status = _cairo_sub_font_lookup_glyph (sub_font,
scaled_font_glyph_index,
subset_glyph);
if (status == CAIRO_STATUS_SUCCESS)
return CAIRO_STATUS_SUCCESS;
}
}
/* Lookup glyph in scaled subsets */
key.is_scaled = TRUE;
_cairo_sub_font_init_key (&key, scaled_font);
if (_cairo_hash_table_lookup (subsets->scaled_sub_fonts, &key.base,
(cairo_hash_entry_t **) &sub_font))
{
status = _cairo_sub_font_lookup_glyph (sub_font,
scaled_font_glyph_index,
subset_glyph);
if (status == CAIRO_STATUS_SUCCESS)
return CAIRO_STATUS_SUCCESS;
}
/* Glyph not found. Determine whether the glyph is outline or
* bitmap and add to the appropriate subset */
status = _cairo_scaled_glyph_lookup (scaled_font,
scaled_font_glyph_index,
CAIRO_SCALED_GLYPH_INFO_PATH,
&scaled_glyph);
if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
return status;
if (status == 0 && subsets->type != CAIRO_SUBSETS_SCALED) {
/* Path available. Add to unscaled subset. */
key.is_scaled = FALSE;
_cairo_sub_font_init_key (&key, scaled_font);
if (! _cairo_hash_table_lookup (subsets->unscaled_sub_fonts, &key.base,
(cairo_hash_entry_t **) &sub_font))
{
font_face = cairo_scaled_font_get_font_face (scaled_font);
cairo_matrix_init_identity (&identity);
_cairo_font_options_init_default (&font_options);
cairo_font_options_set_hint_style (&font_options, CAIRO_HINT_STYLE_NONE);
cairo_font_options_set_hint_metrics (&font_options, CAIRO_HINT_METRICS_OFF);
unscaled_font = cairo_scaled_font_create (font_face,
&identity,
&identity,
&font_options);
if (unscaled_font->status)
return unscaled_font->status;
subset_glyph->is_scaled = FALSE;
type1_font = FALSE;
#if CAIRO_HAS_FT_FONT
type1_font = _cairo_type1_scaled_font_is_type1 (unscaled_font);
#endif
if (subsets->type == CAIRO_SUBSETS_COMPOSITE && !type1_font) {
max_glyphs = MAX_GLYPHS_PER_COMPOSITE_FONT;
subset_glyph->is_composite = TRUE;
} else {
max_glyphs = MAX_GLYPHS_PER_SIMPLE_FONT;
subset_glyph->is_composite = FALSE;
}
sub_font = _cairo_sub_font_create (subsets,
unscaled_font,
subsets->num_sub_fonts++,
max_glyphs,
subset_glyph->is_scaled,
subset_glyph->is_composite);
if (sub_font == NULL) {
cairo_scaled_font_destroy (unscaled_font);
return CAIRO_STATUS_NO_MEMORY;
}
status = _cairo_hash_table_insert (subsets->unscaled_sub_fonts,
&sub_font->base);
if (status) {
_cairo_sub_font_destroy (sub_font);
return status;
}
}
} else {
/* No path available. Add to scaled subset. */
key.is_scaled = TRUE;
_cairo_sub_font_init_key (&key, scaled_font);
if (! _cairo_hash_table_lookup (subsets->scaled_sub_fonts, &key.base,
(cairo_hash_entry_t **) &sub_font))
{
subset_glyph->is_scaled = TRUE;
subset_glyph->is_composite = FALSE;
if (subsets->type == CAIRO_SUBSETS_SCALED)
max_glyphs = INT_MAX;
else
max_glyphs = MAX_GLYPHS_PER_SIMPLE_FONT;
sub_font = _cairo_sub_font_create (subsets,
cairo_scaled_font_reference (scaled_font),
subsets->num_sub_fonts++,
max_glyphs,
subset_glyph->is_scaled,
subset_glyph->is_composite);
if (sub_font == NULL) {
cairo_scaled_font_destroy (scaled_font);
return CAIRO_STATUS_NO_MEMORY;
}
status = _cairo_hash_table_insert (subsets->scaled_sub_fonts,
&sub_font->base);
if (status) {
_cairo_sub_font_destroy (sub_font);
return status;
}
}
}
return _cairo_sub_font_map_glyph (sub_font,
scaled_font_glyph_index,
subset_glyph);
}
