add specific checks for PangoX and glX. add drawing method using freetype

* configure.in: add specific checks for PangoX and glX.
* src/vteft2.c, src/vteft2.h: add drawing method using freetype and GdkRGB.
* src/vteglyph.c, src/vteglyph.h: add.
* src/vtepangox.c, src/vtepangox.h: add drawing method using PangoX.
* src/vtergb.c, src/vtergb.h: add.
* src/vtegl.c, src/vtegl.h: add placeholder drawing method using freetype and
	glX.
* src/Makefile.am: add newly-added source files to libvte.la target.
* src/vtedraw.c, src/vtedraw.h: add get_visual and get_colormap methods so that
	drawing methods can override the default visual and colormap.  Rename
	get_text_base() to get_text_ascent(), which is more correct.  Remove
	scroll(), which would just wrap gdk_window_scroll().
* src/vte.c: fix logic for choosing alternate render methods when VTE_USE_XFT
	is "0".
* src/vteapp.c: add -- option to stop parsing options with getopt.
* src/vtefc.c: fix incorrect DPI read due to type mismatch (#109513).

1 files changed, 86 insertions, 0 deletions

diff --git a/src/vteglyph.h b/src/vteglyph.h
new file mode 100644
index 0000000..6629a9c
--- /dev/null
+++ b/src/vteglyph.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2002,2003 Red Hat, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Library General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef vte_vteglyph_h_included
+#define vte_vteglyph_h_included
+
+#ident "$Id$"
+
+#include <glib.h>
+#include "vtergb.h"
+
+#include <fontconfig/fontconfig.h>
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+enum vte_glyph_flags {
+	vte_glyph_bold		= 1 << 0,
+	vte_glyph_dim		= 1 << 1,
+	vte_glyph_underline	= 1 << 2,
+	vte_glyph_underline2	= 1 << 3,
+	vte_glyph_strikethrough	= 1 << 4,
+	vte_glyph_boxed		= 1 << 5,
+};
+
+#define vte_glyph_double_underline \
+	(vte_glyph_underline | vte_glyph_underline2)
+#define vte_glyph_all \
+	(vte_glyph_bold | vte_glyph_dim | \
+	 vte_glyph_underline | vte_glyph_underline2 | \
+	 vte_glyph_strikethrough | vte_glyph_boxed)
+
+struct _vte_glyph {
+	glong width;
+	glong height;
+	glong skip;
+	guchar bytes_per_pixel;
+	guchar bytes[1];
+};
+
+struct _vte_glyph_cache {
+	GArray *patterns;
+	GList *faces;
+	GTree *cache;
+	gint ft_load_flags;
+	gint ft_render_flags;
+	glong width, height, ascent;
+	FT_Library ft_library;
+};
+
+struct _vte_glyph_cache *_vte_glyph_cache_new(void);
+void _vte_glyph_cache_free(struct _vte_glyph_cache *cache);
+const FcPattern *_vte_glyph_cache_get_pattern(struct _vte_glyph_cache *cache);
+void _vte_glyph_cache_set_description(FcConfig *config,
+				      struct _vte_glyph_cache *cache,
+				      const PangoFontDescription *fontdesc);
+gboolean _vte_glyph_cache_has_char(struct _vte_glyph_cache *cache, gunichar c);
+const struct _vte_glyph *_vte_glyph_get(struct _vte_glyph_cache *cache,
+					gunichar c);
+void _vte_glyph_draw(struct _vte_glyph_cache *cache,
+		     gunichar c, GdkColor *color,
+		     gint x, gint y, gint columns,
+		     enum vte_glyph_flags flags,
+		     struct _vte_rgb_buffer *buffer);
+void _vte_glyph_draw_string(struct _vte_glyph_cache *cache,
+			    const char *s, GdkColor *color,
+			    gint x, gint y,
+			    enum vte_glyph_flags flags,
+			    struct _vte_rgb_buffer *buffer);
+
+#endif