FT SVG color font test

configure.ac

@@ -468,7 +468,8 @@ if test "x$use_ft" = "xyes"; then
 
   AC_CHECK_FUNCS(FT_Get_X11_Font_Format FT_GlyphSlot_Embolden FT_GlyphSlot_Oblique FT_Load_Sfnt_Table FT_Library_SetLcdFilter FT_Get_Var_Design_Coordinates FT_Done_MM_Var FT_Palette_Select)
 
-  AC_CHECK_TYPES([FT_SVG_Document], [], [], [[#include <freetype/otsvg.h>]])
+  AC_CHECK_TYPES([FT_SVG_Document], [have_ft_svg=yes], [have_ft_svg=no], [[#include <freetype/otsvg.h>]])
+  AM_CONDITIONAL(HAVE_FT_SVG_DOCUMENT, test "x$have_ft_svg=" = "xyes")
 
   AC_MSG_CHECKING(for FT_HAS_COLOR)
   AC_LINK_IFELSE([AC_LANG_PROGRAM([

test/Makefile.am

@@ -14,6 +14,9 @@ if CAIRO_HAS_FT_FONT
 test_sources += $(ft_font_test_sources)
 if CAIRO_HAS_FC_FONT
 test_sources += $(fc_font_test_sources)
+if HAVE_FT_SVG_DOCUMENT
+test_sources += $(fc_svg_font_test_sources)
+endif
 endif
 endif
 

test/Makefile.sources

@@ -423,6 +423,9 @@ fc_font_test_sources = \
 	ft-text-vertical-layout-type3.c \
 	ft-text-antialias-none.c
 
+fc_svg_font_test_sources = \
+	ft-svg-color-font.c
+
 gl_surface_test_sources = \
 	gl-device-release.c \
 	gl-oversized-surface.c \

test/ft-svg-color-font.c

@@ -0,0 +1,146 @@
+/*
+ * Copyright © 2022 Adrian Johnson
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#include "cairo-test.h"
+#include <cairo-ft.h>
+
+#define FONT_SIZE 50
+#define MARGIN 5
+#define WIDTH  (FONT_SIZE*4 + MARGIN*2)
+#define HEIGHT (FONT_SIZE*3 + MARGIN*5)
+
+/* Check the full name to ensure we got an SVG font. */
+#define FONT_FAMILY "Twitter Color Emoji"
+#define FONT_FULLNAME "Twitter Color Emoji SVGinOT"
+
+static const char spade_utf8[] =   { 0xe2, 0x99, 0xa0, 0x00 }; /* U+2660 glyph 87 */
+static const char club_utf8[] =    { 0xe2, 0x99, 0xa3, 0x00 }; /* U+2663 glyph 88 */
+static const char heart_utf8[] =   { 0xe2, 0x99, 0xa5, 0x00 }; /* U+2665 glyph 89 */
+static const char diamond_utf8[] = { 0xe2, 0x99, 0xa6, 0x00 }; /* U+2666 glyph 90 */
+
+static cairo_test_status_t
+set_color_emoji_font (cairo_t *cr)
+{
+    cairo_font_options_t *font_options;
+    cairo_font_face_t *font_face;
+    FcPattern *pattern;
+    FcPattern *resolved;
+    FcChar8 *font_name;
+    FcResult result;
+
+    pattern = FcPatternCreate ();
+    if (pattern == NULL)
+	return CAIRO_TEST_NO_MEMORY;
+
+    FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *) FONT_FAMILY);
+    FcConfigSubstitute (NULL, pattern, FcMatchPattern);
+
+    font_options = cairo_font_options_create ();
+    cairo_get_font_options (cr, font_options);
+    cairo_ft_font_options_substitute (font_options, pattern);
+
+    FcDefaultSubstitute (pattern);
+    resolved = FcFontMatch (NULL, pattern, &result);
+    if (resolved == NULL) {
+	FcPatternDestroy (pattern);
+	return CAIRO_TEST_NO_MEMORY;
+    }
+
+    if (FcPatternGetString (resolved, FC_FULLNAME, 0, &font_name) == FcResultMatch) {
+        if (strcmp((char*)font_name, FONT_FULLNAME) != 0) {
+            const cairo_test_context_t *ctx = cairo_test_get_context (cr);
+            cairo_test_log (ctx, "Could not find %s font\n", FONT_FULLNAME);
+            return CAIRO_TEST_UNTESTED;
+        }
+    } else {
+        return CAIRO_TEST_FAILURE;
+    }
+
+    font_face = cairo_ft_font_face_create_for_pattern (resolved);
+    cairo_set_font_face (cr, font_face);
+
+    cairo_font_options_destroy (font_options);
+    cairo_font_face_destroy (font_face);
+    FcPatternDestroy (pattern);
+    FcPatternDestroy (resolved);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_font_options_t *font_options;
+    cairo_test_status_t result;
+
+    cairo_set_source_rgb (cr, 1, 1, 1);
+    cairo_paint (cr);
+    cairo_set_source_rgb (cr, 0, 0, 0);
+
+    result = set_color_emoji_font (cr);
+    if (result != CAIRO_TEST_SUCCESS)
+        return result;
+
+    cairo_set_font_size (cr, FONT_SIZE);
+
+    /* Color glyphs */
+    cairo_move_to (cr, MARGIN, FONT_SIZE + MARGIN);
+    cairo_show_text (cr, diamond_utf8);
+    cairo_show_text (cr, club_utf8);
+    cairo_show_text (cr, heart_utf8);
+    cairo_show_text (cr, spade_utf8);
+
+    /* Non-color glyphs */
+    font_options = cairo_font_options_create ();
+    cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_NO_COLOR);
+    cairo_set_font_options (cr, font_options);
+    cairo_move_to (cr, MARGIN, FONT_SIZE*2 + MARGIN*2);
+    cairo_show_text (cr, diamond_utf8);
+    cairo_show_text (cr, club_utf8);
+    cairo_show_text (cr, heart_utf8);
+    cairo_show_text (cr, spade_utf8);
+
+    /* Color glyph text path */
+    cairo_font_options_set_color_mode (font_options, CAIRO_COLOR_MODE_COLOR);
+    cairo_set_font_options (cr, font_options);
+    cairo_font_options_destroy (font_options);
+    cairo_move_to (cr, MARGIN, FONT_SIZE*3 + MARGIN*3);
+    cairo_text_path (cr, diamond_utf8);
+    cairo_text_path (cr, club_utf8);
+    cairo_text_path (cr, heart_utf8);
+    cairo_text_path (cr, spade_utf8);
+    cairo_set_line_width (cr, 1);
+    cairo_stroke (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (ft_svg_color_font,
+	    "Test color font",
+	    "svgrender", /* keywords */
+	    NULL, /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw)

test/meson.build

@@ -425,6 +425,10 @@ test_ft_font_sources = [
   'ft-text-antialias-none.c',
 ]
 
+test_ft_svg_font_sources = [
+  'ft-svg-color-font.c',
+]
+
 test_gl_sources = [
   'gl-device-release.c',
   'gl-oversized-surface.c',
@@ -525,6 +529,9 @@ endif
 
 if feature_conf.get('CAIRO_HAS_FT_FONT', 0) == 1 and feature_conf.get('CAIRO_HAS_FC_FONT', 0) == 1
   test_sources += test_ft_font_sources
+  if conf.get('HAVE_FT_SVG_DOCUMENT', 0) == 1
+    test_sources += test_ft_svg_font_sources
+  endif
 endif
 
 if feature_conf.get('CAIRO_HAS_QUARTZ_SURFACE', 0) == 1