1 files changed, 72 insertions, 0 deletions
diff --git a/hacks/glx/texfont.h b/hacks/glx/texfont.h
new file mode 100644
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+++ b/hacks/glx/texfont.h
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+/* texfonts, Copyright (c) 2005-2016 Jamie Zawinski <jwz@jwz.org>
+ * Loads X11 fonts into textures for use with OpenGL.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation.  No representations are made about the suitability of this
+ * software for any purpose.  It is provided "as is" without express or 
+ * implied warranty.
+ */
+
+#ifndef __TEXTURE_FONT_H__
+#define __TEXTURE_FONT_H__
+
+typedef struct texture_font_data texture_font_data;
+
+/* Loads the font named by the X resource "res" and returns
+   a texture-font object.
+*/
+extern texture_font_data *load_texture_font (Display *, char *res);
+
+/* Bounding box of the multi-line string, in pixels,
+   and overall ascent/descent of the font.
+ */
+extern void texture_string_metrics (texture_font_data *, const char *,
+                                    XCharStruct *metrics_ret,
+                                    int *ascent_ret, int *descent_ret);
+
+/* Draws the string in the scene at the origin.
+   Newlines and tab stops are honored.
+   Any numbers inside [] will be rendered as a subscript.
+   Assumes the font has been loaded as with load_texture_font().
+ */
+extern void print_texture_string (texture_font_data *, const char *);
+
+/* Draws the string on the window at the given pixel position.
+   Newlines and tab stops are honored.
+   Any numbers inside [] will be rendered as a subscript.
+   Assumes the font has been loaded as with load_texture_font().
+
+   Position is 0 for center, 1 for top left, 2 for bottom left.
+ */
+void print_texture_label (Display *, texture_font_data *,
+                          int window_width, int window_height,
+                          int position, const char *string);
+
+/* Renders the given string into the prevailing texture.
+   Returns the metrics of the text, and size of the texture.
+ */
+void string_to_texture (texture_font_data *, const char *,
+                        XCharStruct *extents_ret,
+                        int *tex_width_ret, int *tex_height_ret);
+
+/* Set the various OpenGL parameters for properly rendering things
+   with a texture generated by string_to_texture().
+ */
+void enable_texture_string_parameters (void);
+
+
+/* Releases the texture font.
+ */
+extern void free_texture_font (texture_font_data *);
+
+
+#ifdef HAVE_JWXYZ
+extern char *texfont_unicode_character_name (texture_font_data *,
+                                             unsigned long uc);
+#endif
+
+
+#endif /* __TEXTURE_FONT_H__ */