From 1bd4d59705f29ad871e3194385ff1790434fce35 Mon Sep 17 00:00:00 2001
From: Marek Kasik <mkasik@redhat.com>
Date: Thu, 21 Mar 2024 20:55:15 +0000
Subject: Prefer COLRv1 table

---
 meson.build         |  3 +++
 src/cairo-ft-font.c | 52 +++++++++++++++++++++++++++++++++++-----------------
 2 files changed, 38 insertions(+), 17 deletions(-)

diff --git a/meson.build b/meson.build
index 9efe91978..fc334f64b 100644
--- a/meson.build
+++ b/meson.build
@@ -340,6 +340,9 @@ if freetype_dep.found()
         conf.set('CAIRO_CAN_TEST_TTX_FONT', 1)
       endif
     endif
+    if cc.get_define('FT_LOAD_NO_SVG', dependencies: freetype_dep, prefix: '#include <freetype/freetype.h>') != ''
+      conf.set('HAVE_FT_LOAD_NO_SVG', 1)
+    endif
     if freetype_dep.version().version_compare(freetype_colrv1_required_version) and \
        cc.has_function('FT_Get_Color_Glyph_Paint', dependencies: freetype_dep)
       conf.set('HAVE_FT_COLR_V1', 1)
diff --git a/src/cairo-ft-font.c b/src/cairo-ft-font.c
index bf0872e93..56a307d5a 100644
--- a/src/cairo-ft-font.c
+++ b/src/cairo-ft-font.c
@@ -2435,6 +2435,22 @@ done:
     }
 }
 
+typedef enum {
+    CAIRO_FT_GLYPH_TYPE_BITMAP,
+    CAIRO_FT_GLYPH_TYPE_OUTLINE,
+    CAIRO_FT_GLYPH_TYPE_SVG,
+    CAIRO_FT_GLYPH_TYPE_COLR_V0,
+    CAIRO_FT_GLYPH_TYPE_COLR_V1,
+} cairo_ft_glyph_format_t;
+
+typedef struct {
+    cairo_scaled_glyph_private_t base;
+
+    cairo_ft_glyph_format_t format;
+} cairo_ft_glyph_private_t;
+
+static const int ft_glyph_private_key;
+
 static cairo_int_status_t
 _cairo_ft_scaled_glyph_load_glyph (cairo_ft_scaled_font_t *scaled_font,
 				   cairo_scaled_glyph_t   *scaled_glyph,
@@ -2445,6 +2461,11 @@ _cairo_ft_scaled_glyph_load_glyph (cairo_ft_scaled_font_t *scaled_font,
 {
     FT_Error error;
     cairo_status_t status;
+    cairo_ft_glyph_private_t *glyph_priv;
+
+    glyph_priv = (cairo_ft_glyph_private_t *) _cairo_scaled_glyph_find_private (scaled_glyph,
+                                                                                &ft_glyph_private_key);
+    assert (glyph_priv != NULL);
 
     if (use_em_size) {
 	cairo_matrix_t em_size;
@@ -2459,6 +2480,11 @@ _cairo_ft_scaled_glyph_load_glyph (cairo_ft_scaled_font_t *scaled_font,
 
     cairo_ft_apply_variations (face, scaled_font);
 
+#if defined(FT_LOAD_COLOR) && defined(HAVE_FT_LOAD_NO_SVG)
+    if (load_flags & FT_LOAD_COLOR && glyph_priv->format == CAIRO_FT_GLYPH_TYPE_COLR_V1)
+        load_flags |= FT_LOAD_NO_SVG;
+#endif
+
     error = FT_Load_Glyph (face,
 			   _cairo_scaled_glyph_index(scaled_glyph),
 			   load_flags);
@@ -2495,20 +2521,6 @@ _cairo_ft_scaled_glyph_load_glyph (cairo_ft_scaled_font_t *scaled_font,
     return CAIRO_STATUS_SUCCESS;
 }
 
-typedef enum {
-    CAIRO_FT_GLYPH_TYPE_BITMAP,
-    CAIRO_FT_GLYPH_TYPE_OUTLINE,
-    CAIRO_FT_GLYPH_TYPE_SVG,
-    CAIRO_FT_GLYPH_TYPE_COLR_V0,
-    CAIRO_FT_GLYPH_TYPE_COLR_V1,
-} cairo_ft_glyph_format_t;
-
-typedef struct {
-    cairo_scaled_glyph_private_t base;
-
-    cairo_ft_glyph_format_t format;
-} cairo_ft_glyph_private_t;
-
 static void
 _cairo_ft_glyph_fini (cairo_scaled_glyph_private_t *glyph_private,
 		      cairo_scaled_glyph_t *glyph,
@@ -3274,8 +3286,6 @@ _cairo_ft_scaled_glyph_is_colr_v1 (cairo_ft_scaled_font_t *scaled_font,
     return FALSE;
 }
 
-static const int ft_glyph_private_key;
-
 static cairo_int_status_t
 _cairo_ft_scaled_glyph_init_metrics (cairo_ft_scaled_font_t  *scaled_font,
 				     cairo_scaled_glyph_t    *scaled_glyph,
@@ -3328,7 +3338,15 @@ _cairo_ft_scaled_glyph_init_metrics (cairo_ft_scaled_font_t  *scaled_font,
 #endif
 
     if (is_svg_format) {
-         glyph_priv->format = CAIRO_FT_GLYPH_TYPE_SVG;
+        glyph_priv->format = CAIRO_FT_GLYPH_TYPE_SVG;
+
+#if defined(HAVE_FT_COLR_V1) && defined(HAVE_FT_LOAD_NO_SVG)
+        /* Prefer COLRv1 table over SVG table due to performance reasons for now */
+        if (_cairo_ft_scaled_glyph_is_colr_v1 (scaled_font, scaled_glyph, face)) {
+            glyph_priv->format = CAIRO_FT_GLYPH_TYPE_COLR_V1;
+        }
+#endif
+
     } else if (face->glyph->format == FT_GLYPH_FORMAT_OUTLINE) {
 	glyph_priv->format = CAIRO_FT_GLYPH_TYPE_OUTLINE;
 	if (color_flag) {
-- 
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