--- /dev/null
+/*
+ * Copyright (C) 2009 Red Hat, Inc.
+ * Copyright (C) 2009 Keith Stribley <devel@thanlwinsoft.org>
+ *
+ * This is part of HarfBuzz, an OpenType Layout engine library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ */
+
+#include "hb-private.h"
+
+#include "hb-ft.h"
+
+#include "hb-font-private.h"
+
+#include FT_TRUETYPE_TABLES_H
+
+#if 0
+extern hb_codepoint_t hb_GetGlyph(hb_font_t *font, hb_face_t *face, const void *user_data,
+ hb_codepoint_t unicode, hb_codepoint_t variant_selector)
+{
+ FT_Face fcFace = (FT_Face)user_data;
+ return FT_Get_Char_Index(fcFace, unicode);
+}
+
+extern hb_bool_t hb_GetContourPoint(hb_font_t *font, hb_face_t *face, const void *user_data,
+ hb_codepoint_t glyph, hb_position_t *x, hb_position_t *y)
+{
+ unsigned int point = 0; /* TODO this should be in API */
+ int load_flags = FT_LOAD_DEFAULT;
+
+ FT_Face fcFace = (FT_Face)user_data;
+ if (FT_Load_Glyph(fcFace, glyph, load_flags))
+ return 0;
+
+ if (fcFace->glyph->format != ft_glyph_format_outline)
+ return 0;
+
+ unsigned int nPoints = fcFace->glyph->outline.n_points;
+ if (!(nPoints))
+ return 0;
+
+ if (point > nPoints)
+ return 0;
+
+ *x = fcFace->glyph->outline.points[point].x;
+ *y = fcFace->glyph->outline.points[point].y;
+
+ return 1;
+}
+
+extern void hb_GetGlyphMetrics(hb_font_t *font, hb_face_t *face, const void *user_data,
+ hb_codepoint_t glyph, hb_glyph_metrics_t *metrics)
+{
+ int load_flags = FT_LOAD_DEFAULT;
+ FT_Face fcFace = (FT_Face)user_data;
+
+ metrics->x = metrics->y = 0;
+ metrics->x_offset = metrics->y_offset = 0;
+ if (FT_Load_Glyph(fcFace, glyph, load_flags))
+ {
+ metrics->width = metrics->height = 0;
+ }
+ else
+ {
+ metrics->width = fcFace->glyph->metrics.width;
+ metrics->height = fcFace->glyph->metrics.height;
+ metrics->x_offset = fcFace->glyph->advance.x;
+ metrics->y_offset = fcFace->glyph->advance.y;
+ }
+}
+
+extern hb_position_t hb_GetKerning(hb_font_t *font, hb_face_t *face, const void *user_data,
+ hb_codepoint_t first_glyph, hb_codepoint_t second_glyph)
+{
+ FT_Face fcFace = (FT_Face)user_data;
+ FT_Vector aKerning;
+ if (FT_Get_Kerning(fcFace, first_glyph, second_glyph, FT_KERNING_DEFAULT,
+ &aKerning))
+ {
+ return 0;
+ }
+ return aKerning.x;
+}
+#endif
+
+static hb_font_funcs_t ft_ffuncs = {
+ HB_REFERENCE_COUNT_INVALID, /* ref_count */
+
+ TRUE, /* immutable */
+
+#if 0
+ hb_ft_get_glyph,
+ hb_ft_get_contour_point,
+ hb_ft_get_glyph_metrics,
+ hb_ft_get_kerning
+#endif
+};
+
+hb_font_funcs_t *
+hb_ft_get_font_funcs (void)
+{
+ return &ft_ffuncs;
+}
+
+
+static hb_blob_t *
+_get_table (hb_tag_t tag, void *user_data)
+{
+ FT_Face ft_face = (FT_Face) user_data;
+ FT_Byte *buffer;
+ FT_ULong length = 0;
+ FT_Error error;
+
+ error = FT_Load_Sfnt_Table (ft_face, tag, 0, NULL, &length);
+ if (error)
+ return hb_blob_create_empty ();
+
+ buffer = malloc (length);
+ if (buffer == NULL)
+ return hb_blob_create_empty ();
+
+ error = FT_Load_Sfnt_Table (ft_face, tag, 0, buffer, &length);
+ if (error)
+ return hb_blob_create_empty ();
+
+ return hb_blob_create ((const char *) buffer, length,
+ HB_MEMORY_MODE_WRITABLE,
+ free, buffer);
+}
+
+
+hb_face_t *
+hb_ft_face_create (FT_Face ft_face,
+ hb_destroy_func_t destroy)
+{
+ hb_face_t *face;
+
+ if (ft_face->stream->base != NULL) {
+ hb_blob_t *blob;
+
+ blob = hb_blob_create ((const char *) ft_face->stream->base,
+ (unsigned int) ft_face->stream->size,
+ HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE,
+ destroy, ft_face);
+ face = hb_face_create_for_data (blob, ft_face->face_index);
+ hb_blob_destroy (blob);
+ } else {
+ face = hb_face_create_for_tables (_get_table, destroy, ft_face);
+ }
+
+ return face;
+}
+
+
+hb_font_t *
+hb_ft_font_create (FT_Face ft_face,
+ hb_destroy_func_t destroy)
+{
+ hb_font_t *font;
+
+ font = hb_font_create ();
+ hb_font_set_funcs (font,
+ hb_ft_get_font_funcs (),
+ destroy, ft_face);
+ hb_font_set_scale (font,
+ ft_face->size->metrics.x_scale,
+ ft_face->size->metrics.y_scale);
+ hb_font_set_ppem (font,
+ ft_face->size->metrics.x_ppem,
+ ft_face->size->metrics.y_ppem);
+
+ return font;
+}
--- /dev/null
+/*
+ * Copyright (C) 2009 Red Hat, Inc.
+ *
+ * This is part of HarfBuzz, an OpenType Layout engine library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_FT_H
+#define HB_FT_H
+
+#include "hb.h"
+
+#include "hb-font.h"
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+HB_BEGIN_DECLS
+
+hb_font_funcs_t *
+hb_ft_get_font_funcs (void);
+
+hb_face_t *
+hb_ft_face_create (FT_Face ft_face,
+ hb_destroy_func_t destroy);
+
+hb_font_t *
+hb_ft_font_create (FT_Face ft_face,
+ hb_destroy_func_t destroy);
+
+HB_END_DECLS
+
+#endif /* HB_FT_H */
projects / platform / upstream / libHarfBuzzSharp.git / commitdiff