summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/harfbuzz/src/harfbuzz-gpos.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/3rdparty/harfbuzz/src/harfbuzz-gpos.h')
-rw-r--r--src/3rdparty/harfbuzz/src/harfbuzz-gpos.h155
1 files changed, 155 insertions, 0 deletions
diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-gpos.h b/src/3rdparty/harfbuzz/src/harfbuzz-gpos.h
new file mode 100644
index 0000000000..92bff84a94
--- /dev/null
+++ b/src/3rdparty/harfbuzz/src/harfbuzz-gpos.h
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 1998-2004 David Turner and Werner Lemberg
+ * Copyright (C) 2006 Behdad Esfahbod
+ *
+ * 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.
+ */
+
+#ifndef HARFBUZZ_GPOS_H
+#define HARFBUZZ_GPOS_H
+
+#include "harfbuzz-gdef.h"
+#include "harfbuzz-buffer.h"
+
+HB_BEGIN_HEADER
+
+
+/* Lookup types for glyph positioning */
+
+#define HB_GPOS_LOOKUP_SINGLE 1
+#define HB_GPOS_LOOKUP_PAIR 2
+#define HB_GPOS_LOOKUP_CURSIVE 3
+#define HB_GPOS_LOOKUP_MARKBASE 4
+#define HB_GPOS_LOOKUP_MARKLIG 5
+#define HB_GPOS_LOOKUP_MARKMARK 6
+#define HB_GPOS_LOOKUP_CONTEXT 7
+#define HB_GPOS_LOOKUP_CHAIN 8
+#define HB_GPOS_LOOKUP_EXTENSION 9
+
+#ifdef HB_SUPPORT_MULTIPLE_MASTER
+/* A pointer to a function which accesses the PostScript interpreter.
+ Multiple Master fonts need this interface to convert a metric ID
+ (as stored in an OpenType font version 1.2 or higher) `metric_id'
+ into a metric value (returned in `metric_value').
+
+ `data' points to the user-defined structure specified during a
+ call to HB_GPOS_Register_MM_Function().
+
+ `metric_value' must be returned as a scaled value (but shouldn't
+ be rounded). */
+
+typedef HB_Error (*HB_MMFunction)(HB_Font font,
+ HB_UShort metric_id,
+ HB_Fixed* metric_value,
+ void* data );
+#endif
+
+
+struct HB_GPOSHeader_
+{
+ HB_16Dot16 Version;
+
+ HB_ScriptList ScriptList;
+ HB_FeatureList FeatureList;
+ HB_LookupList LookupList;
+
+ HB_GDEFHeader* gdef;
+
+#ifdef HB_SUPPORT_MULTIPLE_MASTER
+ /* this is OpenType 1.2 -- Multiple Master fonts need this
+ callback function to get various metric values from the
+ PostScript interpreter. */
+
+ HB_MMFunction mmfunc;
+ void* data;
+#endif
+};
+
+typedef struct HB_GPOSHeader_ HB_GPOSHeader;
+typedef HB_GPOSHeader* HB_GPOS;
+
+
+HB_Error HB_Load_GPOS_Table( HB_Stream stream,
+ HB_GPOSHeader** gpos,
+ HB_GDEFHeader* gdef,
+ HB_Stream gdefStream );
+
+
+HB_Error HB_Done_GPOS_Table( HB_GPOSHeader* gpos );
+
+
+HB_Error HB_GPOS_Select_Script( HB_GPOSHeader* gpos,
+ HB_UInt script_tag,
+ HB_UShort* script_index );
+
+HB_Error HB_GPOS_Select_Language( HB_GPOSHeader* gpos,
+ HB_UInt language_tag,
+ HB_UShort script_index,
+ HB_UShort* language_index,
+ HB_UShort* req_feature_index );
+
+HB_Error HB_GPOS_Select_Feature( HB_GPOSHeader* gpos,
+ HB_UInt feature_tag,
+ HB_UShort script_index,
+ HB_UShort language_index,
+ HB_UShort* feature_index );
+
+
+HB_Error HB_GPOS_Query_Scripts( HB_GPOSHeader* gpos,
+ HB_UInt** script_tag_list );
+
+HB_Error HB_GPOS_Query_Languages( HB_GPOSHeader* gpos,
+ HB_UShort script_index,
+ HB_UInt** language_tag_list );
+
+HB_Error HB_GPOS_Query_Features( HB_GPOSHeader* gpos,
+ HB_UShort script_index,
+ HB_UShort language_index,
+ HB_UInt** feature_tag_list );
+
+
+HB_Error HB_GPOS_Add_Feature( HB_GPOSHeader* gpos,
+ HB_UShort feature_index,
+ HB_UInt property );
+
+HB_Error HB_GPOS_Clear_Features( HB_GPOSHeader* gpos );
+
+
+#ifdef HB_SUPPORT_MULTIPLE_MASTER
+HB_Error HB_GPOS_Register_MM_Function( HB_GPOSHeader* gpos,
+ HB_MMFunction mmfunc,
+ void* data );
+#endif
+
+/* If `dvi' is TRUE, glyph contour points for anchor points and device
+ tables are ignored -- you will get device independent values. */
+
+
+HB_Error HB_GPOS_Apply_String( HB_Font font,
+ HB_GPOSHeader* gpos,
+ HB_UShort load_flags,
+ HB_Buffer buffer,
+ HB_Bool dvi,
+ HB_Bool r2l );
+
+HB_END_HEADER
+
+#endif /* HARFBUZZ_GPOS_H */