[PATCH 4/6] dwrite: Check for vertical variants only when asked.

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov 
---
 dlls/dwrite/dwrite_private.h | 13 +++++++------
 dlls/dwrite/font.c           |  4 +---
 dlls/dwrite/opentype.c       | 12 ++++++++++--
 3 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/dlls/dwrite/dwrite_private.h b/dlls/dwrite/dwrite_private.h
index 4628a2a3704..27f4906a00d 100644
--- a/dlls/dwrite/dwrite_private.h
+++ b/dlls/dwrite/dwrite_private.h
@@ -182,11 +182,12 @@ struct fontfacecached

enum font_flags
 {
-    FONT_IS_SYMBOL                 = 1 << 0,
-    FONT_IS_MONOSPACED             = 1 << 1,
-    FONT_IS_COLORED                = 1 << 2, /* CPAL/COLR support */
-    FONTFACE_HAS_KERNING_PAIRS     = 1 << 3,
-    FONTFACE_HAS_VERTICAL_VARIANTS = 1 << 4
+    FONT_IS_SYMBOL                 = 0x00000001,
+    FONT_IS_MONOSPACED             = 0x00000002,
+    FONT_IS_COLORED                = 0x00000004, /* CPAL/COLR support */
+    FONTFACE_HAS_KERNING_PAIRS     = 0x00000008,
+    FONTFACE_VERTICAL_VARIANTS     = 0x00000010,
+    FONTFACE_NO_VERTICAL_VARIANTS  = 0x00000020,
 };

struct dwrite_cmap;
@@ -257,7 +258,7 @@ struct dwrite_fontface
         unsigned int ascent;
         unsigned int descent;
     } typo_metrics;
-    UINT32 flags;
+    unsigned int flags;

struct dwrite_cmap cmap;

diff --git a/dlls/dwrite/font.c b/dlls/dwrite/font.c
index 9386e9bec3f..5a96ccc71a0 100644
--- a/dlls/dwrite/font.c
+++ b/dlls/dwrite/font.c
@@ -1217,7 +1217,7 @@ static BOOL WINAPI dwritefontface1_HasVerticalGlyphVariants(IDWriteFontFace5 *if

TRACE("%p.\n", iface);

-    return !!(fontface->flags & FONTFACE_HAS_VERTICAL_VARIANTS);
+    return opentype_has_vertical_variants(fontface);
 }

static BOOL WINAPI dwritefontface2_IsColorFont(IDWriteFontFace5 *iface)
@@ -5004,8 +5004,6 @@ HRESULT create_fontface(const struct fontface_desc *desc, struct list *cached_li

if (freetype_has_kerning_pairs(&fontface->IDWriteFontFace5_iface))
         fontface->flags |= FONTFACE_HAS_KERNING_PAIRS;
-    if (opentype_has_vertical_variants(fontface))
-        fontface->flags |= FONTFACE_HAS_VERTICAL_VARIANTS;
     fontface->glyph_image_formats = opentype_get_glyph_image_formats(&fontface->IDWriteFontFace5_iface);

/* Font properties are reused from font object when 'normal' face creation path is used:
diff --git a/dlls/dwrite/opentype.c b/dlls/dwrite/opentype.c
index 39943c52c9a..45967a12f0a 100644
--- a/dlls/dwrite/opentype.c
+++ b/dlls/dwrite/opentype.c
@@ -6342,6 +6342,9 @@ BOOL opentype_has_vertical_variants(struct dwrite_fontface *fontface)
     struct lookups lookups = { 0 };
     UINT16 format;

+    if (fontface->flags & (FONTFACE_VERTICAL_VARIANTS | FONTFACE_NO_VERTICAL_VARIANTS))
+        return !!(fontface->flags & FONTFACE_VERTICAL_VARIANTS);
+
     context.cache = fontface_get_shaping_cache(fontface);
     context.table = &context.cache->gsub;

@@ -6384,7 +6387,12 @@ BOOL opentype_has_vertical_variants(struct dwrite_fontface *fontface)

heap_free(lookups.lookups);

-    return !!count;
+    if (count)
+        fontface->flags |= FONTFACE_VERTICAL_VARIANTS;
+    else
+        fontface->flags |= FONTFACE_NO_VERTICAL_VARIANTS;
+
+    return !!(fontface->flags & FONTFACE_VERTICAL_VARIANTS);
 }

HRESULT opentype_get_vertical_glyph_variants(struct dwrite_fontface *fontface, unsigned int glyph_count,
@@ -6398,7 +6406,7 @@ HRESULT opentype_get_vertical_glyph_variants(struct dwrite_fontface *fontface, u

memcpy(glyphs, nominal_glyphs, glyph_count * sizeof(*glyphs));

-    if (!(fontface->flags & FONTFACE_HAS_VERTICAL_VARIANTS))
+    if (!opentype_has_vertical_variants(fontface))
         return S_OK;

context.cache = fontface_get_shaping_cache(fontface);