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diff --git a/frontends/kolibrios/fb/font_freetype.c b/frontends/kolibrios/fb/font_freetype.c
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+/*
+ * Copyright 2005 James Bursa <bursa@users.sourceforge.net>
+ * 2008 Vincent Sanders <vince@simtec.co.uk>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf 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 of the License.
+ *
+ * NetSurf 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <assert.h>
+
+#include <ft2build.h>
+#include FT_CACHE_H
+
+#include "netsurf/inttypes.h"
+#include "utils/filepath.h"
+#include "utils/utf8.h"
+#include "utils/log.h"
+#include "utils/nsoption.h"
+#include "netsurf/utf8.h"
+#include "netsurf/layout.h"
+#include "netsurf/browser_window.h"
+#include "netsurf/plot_style.h"
+
+#include "framebuffer/gui.h"
+#include "framebuffer/font.h"
+#include "framebuffer/findfile.h"
+
+/* glyph cache minimum size */
+#define CACHE_MIN_SIZE (100 * 1024)
+
+#define BOLD_WEIGHT 700
+
+static FT_Library library;
+static FTC_Manager ft_cmanager;
+static FTC_CMapCache ft_cmap_cache ;
+static FTC_ImageCache ft_image_cache;
+
+int ft_load_type;
+
+/* cache manager faceID data to create freetype faceid on demand */
+typedef struct fb_faceid_s {
+ char *fontfile; /* path to font */
+ int index; /* index of font */
+ int cidx; /* character map index for unicode */
+} fb_faceid_t;
+
+
+enum fb_face_e {
+ FB_FACE_SANS_SERIF = 0,
+ FB_FACE_SANS_SERIF_BOLD,
+ FB_FACE_SANS_SERIF_ITALIC,
+ FB_FACE_SANS_SERIF_ITALIC_BOLD,
+ FB_FACE_SERIF,
+ FB_FACE_SERIF_BOLD,
+ FB_FACE_MONOSPACE,
+ FB_FACE_MONOSPACE_BOLD,
+ FB_FACE_CURSIVE,
+ FB_FACE_FANTASY,
+ FB_FACE_COUNT
+};
+
+/* defines for accesing the faces */
+#define FB_FACE_DEFAULT 0
+
+static fb_faceid_t *fb_faces[FB_FACE_COUNT];
+
+/**
+ * map cache manager handle to face id
+ */
+static FT_Error
+ft_face_requester(FTC_FaceID face_id,
+ FT_Library library,
+ FT_Pointer request_data,
+ FT_Face *face )
+{
+ FT_Error error;
+ fb_faceid_t *fb_face = (fb_faceid_t *)face_id;
+ int cidx;
+
+ error = FT_New_Face(library, fb_face->fontfile, fb_face->index, face);
+ if (error) {
+ LOG("Could not find font (code %d)", error);
+ } else {
+
+ error = FT_Select_Charmap(*face, FT_ENCODING_UNICODE);
+ if (error) {
+ LOG("Could not select charmap (code %d)", error);
+ } else {
+ for (cidx = 0; cidx < (*face)->num_charmaps; cidx++) {
+ if ((*face)->charmap == (*face)->charmaps[cidx]) {
+ fb_face->cidx = cidx;
+ break;
+ }
+ }
+ }
+ }
+ LOG("Loaded face from %s", fb_face->fontfile);
+
+ return error;
+}
+
+/**
+ * create new framebuffer face and cause it to be loaded to check its ok
+ */
+static fb_faceid_t *
+fb_new_face(const char *option, const char *resname, const char *fontname)
+{
+ fb_faceid_t *newf;
+ FT_Error error;
+ FT_Face aface;
+ char buf[PATH_MAX];
+
+ newf = calloc(1, sizeof(fb_faceid_t));
+
+ if (option != NULL) {
+ newf->fontfile = strdup(option);
+ } else {
+ filepath_sfind(respaths, buf, fontname);
+ newf->fontfile = strdup(buf);
+ }
+
+ error = FTC_Manager_LookupFace(ft_cmanager, (FTC_FaceID)newf, &aface);
+ if (error) {
+ LOG("Could not find font face %s (code %d)", fontname, error);
+ free(newf->fontfile);
+ free(newf);
+ newf = NULL;
+ }
+
+ return newf;
+}
+
+/* exported interface documented in framebuffer/font.h */
+bool fb_font_init(void)
+{
+ FT_Error error;
+ FT_ULong max_cache_size;
+ FT_UInt max_faces = 6;
+ fb_faceid_t *fb_face;
+
+ /* freetype library initialise */
+ error = FT_Init_FreeType( &library );
+ if (error) {
+ LOG("Freetype could not initialised (code %d)", error);
+ return false;
+ }
+
+ /* set the Glyph cache size up */
+ max_cache_size = nsoption_int(fb_font_cachesize) * 1024;
+
+ if (max_cache_size < CACHE_MIN_SIZE) {
+ max_cache_size = CACHE_MIN_SIZE;
+ }
+
+ /* cache manager initialise */
+ error = FTC_Manager_New(library,
+ max_faces,
+ 0,
+ max_cache_size,
+ ft_face_requester,
+ NULL,
+ &ft_cmanager);
+ if (error) {
+ LOG("Freetype could not initialise cache manager (code %d)", error);
+ FT_Done_FreeType(library);
+ return false;
+ }
+
+ error = FTC_CMapCache_New(ft_cmanager, &ft_cmap_cache);
+
+ error = FTC_ImageCache_New(ft_cmanager, &ft_image_cache);
+
+ /* need to obtain the generic font faces */
+
+ /* Start with the sans serif font */
+ fb_face = fb_new_face(nsoption_charp(fb_face_sans_serif),
+ "sans_serif.ttf",
+ NETSURF_FB_FONT_SANS_SERIF);
+ if (fb_face == NULL) {
+ /* The sans serif font is the default and must be found. */
+ LOG("Could not find the default font");
+ FTC_Manager_Done(ft_cmanager);
+ FT_Done_FreeType(library);
+ return false;
+ } else {
+ fb_faces[FB_FACE_SANS_SERIF] = fb_face;
+ }
+
+ /* Bold sans serif face */
+ fb_face = fb_new_face(nsoption_charp(fb_face_sans_serif_bold),
+ "sans_serif_bold.ttf",
+ NETSURF_FB_FONT_SANS_SERIF_BOLD);
+ if (fb_face == NULL) {
+ /* seperate bold face unavailabe use the normal weight version */
+ fb_faces[FB_FACE_SANS_SERIF_BOLD] = fb_faces[FB_FACE_SANS_SERIF];
+ } else {
+ fb_faces[FB_FACE_SANS_SERIF_BOLD] = fb_face;
+ }
+
+ /* Italic sans serif face */
+ fb_face = fb_new_face(nsoption_charp(fb_face_sans_serif_italic),
+ "sans_serif_italic.ttf",
+ NETSURF_FB_FONT_SANS_SERIF_ITALIC);
+ if (fb_face == NULL) {
+ /* seperate italic face unavailabe use the normal weight version */
+ fb_faces[FB_FACE_SANS_SERIF_ITALIC] = fb_faces[FB_FACE_SANS_SERIF];
+ } else {
+ fb_faces[FB_FACE_SANS_SERIF_ITALIC] = fb_face;
+ }
+
+ /* Bold italic sans serif face */
+ fb_face = fb_new_face(nsoption_charp(fb_face_sans_serif_italic_bold),
+ "sans_serif_italic_bold.ttf",
+ NETSURF_FB_FONT_SANS_SERIF_ITALIC_BOLD);
+ if (fb_face == NULL) {
+ /* seperate italic face unavailabe use the normal weight version */
+ fb_faces[FB_FACE_SANS_SERIF_ITALIC_BOLD] = fb_faces[FB_FACE_SANS_SERIF];
+ } else {
+ fb_faces[FB_FACE_SANS_SERIF_ITALIC_BOLD] = fb_face;
+ }
+
+ /* serif face */
+ fb_face = fb_new_face(nsoption_charp(fb_face_serif),
+ "serif.ttf",
+ NETSURF_FB_FONT_SERIF);
+ if (fb_face == NULL) {
+ /* serif face unavailabe use the default */
+ fb_faces[FB_FACE_SERIF] = fb_faces[FB_FACE_SANS_SERIF];
+ } else {
+ fb_faces[FB_FACE_SERIF] = fb_face;
+ }
+
+ /* bold serif face*/
+ fb_face = fb_new_face(nsoption_charp(fb_face_serif_bold),
+ "serif_bold.ttf",
+ NETSURF_FB_FONT_SERIF_BOLD);
+ if (fb_face == NULL) {
+ /* bold serif face unavailabe use the normal weight */
+ fb_faces[FB_FACE_SERIF_BOLD] = fb_faces[FB_FACE_SERIF];
+ } else {
+ fb_faces[FB_FACE_SERIF_BOLD] = fb_face;
+ }
+
+
+ /* monospace face */
+ fb_face = fb_new_face(nsoption_charp(fb_face_monospace),
+ "monospace.ttf",
+ NETSURF_FB_FONT_MONOSPACE);
+ if (fb_face == NULL) {
+ /* serif face unavailabe use the default */
+ fb_faces[FB_FACE_MONOSPACE] = fb_faces[FB_FACE_SANS_SERIF];
+ } else {
+ fb_faces[FB_FACE_MONOSPACE] = fb_face;
+ }
+
+ /* bold monospace face*/
+ fb_face = fb_new_face(nsoption_charp(fb_face_monospace_bold),
+ "monospace_bold.ttf",
+ NETSURF_FB_FONT_MONOSPACE_BOLD);
+ if (fb_face == NULL) {
+ /* bold serif face unavailabe use the normal weight */
+ fb_faces[FB_FACE_MONOSPACE_BOLD] = fb_faces[FB_FACE_MONOSPACE];
+ } else {
+ fb_faces[FB_FACE_MONOSPACE_BOLD] = fb_face;
+ }
+
+ /* cursive face */
+ fb_face = fb_new_face(nsoption_charp(fb_face_cursive),
+ "cursive.ttf",
+ NETSURF_FB_FONT_CURSIVE);
+ if (fb_face == NULL) {
+ /* cursive face unavailabe use the default */
+ fb_faces[FB_FACE_CURSIVE] = fb_faces[FB_FACE_SANS_SERIF];
+ } else {
+ fb_faces[FB_FACE_CURSIVE] = fb_face;
+ }
+
+ /* fantasy face */
+ fb_face = fb_new_face(nsoption_charp(fb_face_fantasy),
+ "fantasy.ttf",
+ NETSURF_FB_FONT_FANTASY);
+ if (fb_face == NULL) {
+ /* fantasy face unavailabe use the default */
+ fb_faces[FB_FACE_FANTASY] = fb_faces[FB_FACE_SANS_SERIF];
+ } else {
+ fb_faces[FB_FACE_FANTASY] = fb_face;
+ }
+
+
+ /* set the default render mode */
+ if (nsoption_bool(fb_font_monochrome) == true)
+ ft_load_type = FT_LOAD_MONOCHROME; /* faster but less pretty */
+ else
+ ft_load_type = 0;
+
+ return true;
+}
+
+/* exported interface documented in framebuffer/font.h */
+bool fb_font_finalise(void)
+{
+ int i, j;
+
+ FTC_Manager_Done(ft_cmanager);
+ FT_Done_FreeType(library);
+
+ for (i = 0; i < FB_FACE_COUNT; i++) {
+ if (fb_faces[i] == NULL)
+ continue;
+
+ /* Unset any faces that duplicate this one */
+ for (j = i + 1; j < FB_FACE_COUNT; j++) {
+ if (fb_faces[i] == fb_faces[j])
+ fb_faces[j] = NULL;
+ }
+
+ free(fb_faces[i]->fontfile);
+ free(fb_faces[i]);
+
+ fb_faces[i] = NULL;
+ }
+
+ return true;
+}
+
+/**
+ * fill freetype scalar
+ */
+static void fb_fill_scalar(const plot_font_style_t *fstyle, FTC_Scaler srec)
+{
+ int selected_face = FB_FACE_DEFAULT;
+
+ switch (fstyle->family) {
+
+ case PLOT_FONT_FAMILY_SERIF:
+ if (fstyle->weight >= BOLD_WEIGHT) {
+ selected_face = FB_FACE_SERIF_BOLD;
+ } else {
+ selected_face = FB_FACE_SERIF;
+ }
+ break;
+
+ case PLOT_FONT_FAMILY_MONOSPACE:
+ if (fstyle->weight >= BOLD_WEIGHT) {
+ selected_face = FB_FACE_MONOSPACE_BOLD;
+ } else {
+ selected_face = FB_FACE_MONOSPACE;
+ }
+ break;
+
+ case PLOT_FONT_FAMILY_CURSIVE:
+ selected_face = FB_FACE_CURSIVE;
+ break;
+
+ case PLOT_FONT_FAMILY_FANTASY:
+ selected_face = FB_FACE_FANTASY;
+ break;
+
+ case PLOT_FONT_FAMILY_SANS_SERIF:
+ default:
+ if ((fstyle->flags & FONTF_ITALIC) ||
+ (fstyle->flags & FONTF_OBLIQUE)) {
+ if (fstyle->weight >= BOLD_WEIGHT) {
+ selected_face = FB_FACE_SANS_SERIF_ITALIC_BOLD;
+ } else {
+ selected_face = FB_FACE_SANS_SERIF_ITALIC;
+ }
+ } else {
+ if (fstyle->weight >= BOLD_WEIGHT) {
+ selected_face = FB_FACE_SANS_SERIF_BOLD;
+ } else {
+ selected_face = FB_FACE_SANS_SERIF;
+ }
+ }
+ }
+
+ srec->face_id = (FTC_FaceID)fb_faces[selected_face];
+
+ srec->width = srec->height = (fstyle->size * 64) / FONT_SIZE_SCALE;
+ srec->pixel = 0;
+
+ srec->x_res = srec->y_res = browser_get_dpi();
+}
+
+/* exported interface documented in framebuffer/freetype_font.h */
+FT_Glyph fb_getglyph(const plot_font_style_t *fstyle, uint32_t ucs4)
+{
+ FT_UInt glyph_index;
+ FTC_ScalerRec srec;
+ FT_Glyph glyph;
+ FT_Error error;
+ fb_faceid_t *fb_face;
+
+ fb_fill_scalar(fstyle, &srec);
+
+ fb_face = (fb_faceid_t *)srec.face_id;
+
+ glyph_index = FTC_CMapCache_Lookup(ft_cmap_cache, srec.face_id,
+ fb_face->cidx, ucs4);
+
+ error = FTC_ImageCache_LookupScaler(ft_image_cache,
+ &srec,
+ FT_LOAD_RENDER |
+ FT_LOAD_FORCE_AUTOHINT |
+ ft_load_type,
+ glyph_index,
+ &glyph,
+ NULL);
+ if (error != 0)
+ return NULL;
+
+ return glyph;
+}
+
+
+/* exported interface documented in framebuffer/freetype_font.h */
+nserror
+fb_font_width(const plot_font_style_t *fstyle,
+ const char *string, size_t length,
+ int *width)
+{
+ uint32_t ucs4;
+ size_t nxtchr = 0;
+ FT_Glyph glyph;
+
+ *width = 0;
+ while (nxtchr < length) {
+ ucs4 = utf8_to_ucs4(string + nxtchr, length - nxtchr);
+ nxtchr = utf8_next(string, length, nxtchr);
+
+ glyph = fb_getglyph(fstyle, ucs4);
+ if (glyph == NULL)
+ continue;
+
+ *width += glyph->advance.x >> 16;
+ }
+ return NSERROR_OK;
+}
+
+
+/* exported interface documented in framebuffer/freetype_font.h */
+nserror
+fb_font_position(const plot_font_style_t *fstyle,
+ const char *string, size_t length,
+ int x, size_t *char_offset, int *actual_x)
+{
+ uint32_t ucs4;
+ size_t nxtchr = 0;
+ FT_Glyph glyph;
+ int prev_x = 0;
+
+ *actual_x = 0;
+ while (nxtchr < length) {
+ ucs4 = utf8_to_ucs4(string + nxtchr, length - nxtchr);
+
+ glyph = fb_getglyph(fstyle, ucs4);
+ if (glyph == NULL)
+ continue;
+
+ *actual_x += glyph->advance.x >> 16;
+ if (*actual_x > x)
+ break;
+
+ prev_x = *actual_x;
+ nxtchr = utf8_next(string, length, nxtchr);
+ }
+
+ /* choose nearest of previous and last x */
+ if (abs(*actual_x - x) > abs(prev_x - x))
+ *actual_x = prev_x;
+
+ *char_offset = nxtchr;
+ return NSERROR_OK;
+}
+
+
+/**
+ * Find where to split a string to make it fit a width.
+ *
+ * \param fstyle style for this text
+ * \param string UTF-8 string to measure
+ * \param length length of string, in bytes
+ * \param x width available
+ * \param char_offset updated to offset in string of actual_x, [1..length]
+ * \param actual_x updated to x coordinate of character closest to x
+ * \return true on success, false on error and error reported
+ *
+ * On exit, char_offset indicates first character after split point.
+ *
+ * Note: char_offset of 0 should never be returned.
+ *
+ * Returns:
+ * char_offset giving split point closest to x, where actual_x <= x
+ * else
+ * char_offset giving split point closest to x, where actual_x > x
+ *
+ * Returning char_offset == length means no split possible
+ */
+static nserror
+fb_font_split(const plot_font_style_t *fstyle,
+ const char *string, size_t length,
+ int x, size_t *char_offset, int *actual_x)
+{
+ uint32_t ucs4;
+ size_t nxtchr = 0;
+ int last_space_x = 0;
+ int last_space_idx = 0;
+ FT_Glyph glyph;
+
+ *actual_x = 0;
+ while (nxtchr < length) {
+ ucs4 = utf8_to_ucs4(string + nxtchr, length - nxtchr);
+
+ glyph = fb_getglyph(fstyle, ucs4);
+ if (glyph == NULL)
+ continue;
+
+ if (ucs4 == 0x20) {
+ last_space_x = *actual_x;
+ last_space_idx = nxtchr;
+ }
+
+ *actual_x += glyph->advance.x >> 16;
+ if (*actual_x > x && last_space_idx != 0) {
+ /* string has exceeded available width and we've
+ * found a space; return previous space */
+ *actual_x = last_space_x;
+ *char_offset = last_space_idx;
+ return NSERROR_OK;
+ }
+
+ nxtchr = utf8_next(string, length, nxtchr);
+ }
+
+ *char_offset = nxtchr;
+
+ return NSERROR_OK;
+}
+
+static struct gui_layout_table layout_table = {
+ .width = fb_font_width,
+ .position = fb_font_position,
+ .split = fb_font_split,
+};
+
+struct gui_layout_table *framebuffer_layout_table = &layout_table;
+
+
+struct gui_utf8_table *framebuffer_utf8_table = NULL;
+
+/*
+ * Local Variables:
+ * c-basic-offset:8
+ * End:
+ */