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wine-staging/patches/dwrite-FontFallback/0004-dwrite-Use-font-fallback-when-mapping-characters.patch
Alistair Leslie-Hughes aca614eb8b Rebase against 85bd94f8705115ac0c35eac6ff7e2f3e59be924e
2020-02-17 09:47:53 +11:00

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From 593683720fbef744c46cdc9051eb9703d4279819 Mon Sep 17 00:00:00 2001
From: Lucian Poston <lucianposton@pm.me>
Date: Mon, 21 May 2018 18:13:00 -0700
Subject: [PATCH] dwrite: Use font fallback when mapping characters
Signed-off-by: Lucian Poston <lucianposton@pm.me>
---
dlls/dwrite/analyzer.c | 77 +++++++++++++++++++++++++++++---------
dlls/dwrite/layout.c | 6 +++
dlls/dwrite/tests/layout.c | 70 +++++++++-------------------------
3 files changed, 83 insertions(+), 70 deletions(-)
diff --git a/dlls/dwrite/analyzer.c b/dlls/dwrite/analyzer.c
index a418081d491..06a3934d229 100644
--- a/dlls/dwrite/analyzer.c
+++ b/dlls/dwrite/analyzer.c
@@ -2053,6 +2053,7 @@ static HRESULT fallback_get_fallback_font(struct dwrite_fontfallback *fallback,
IDWriteFont **mapped_font)
{
const struct fallback_mapping *mapping;
+ IDWriteFontCollection *collection;
HRESULT hr;
UINT32 i;
@@ -2064,9 +2065,15 @@ static HRESULT fallback_get_fallback_font(struct dwrite_fontfallback *fallback,
return E_FAIL;
}
+ if (mapping->collection) {
+ collection = mapping->collection;
+ } else {
+ collection = (IDWriteFontCollection *)fallback->systemcollection;
+ }
+
/* Now let's see what fallback can handle. Pick first font that could be created. */
for (i = 0; i < mapping->families_count; i++) {
- hr = create_matching_font((IDWriteFontCollection *)fallback->systemcollection, mapping->families[i],
+ hr = create_matching_font(collection, mapping->families[i],
weight, style, stretch, mapped_font);
if (hr == S_OK) {
TRACE("Created fallback font using family %s.\n", debugstr_w(mapping->families[i]));
@@ -2123,32 +2130,66 @@ static HRESULT WINAPI fontfallback_MapCharacters(IDWriteFontFallback1 *iface, ID
if (basefamily && *basefamily) {
hr = create_matching_font(basecollection, basefamily, weight, style, stretch, ret_font);
- if (FAILED(hr))
- goto done;
-
- hr = fallback_map_characters(*ret_font, text, length, mapped_length);
- if (FAILED(hr))
- goto done;
+ if (SUCCEEDED(hr)) {
+ hr = fallback_map_characters(*ret_font, text, length, mapped_length);
+ if (FAILED(hr)) {
+ IDWriteFont_Release(*ret_font);
+ *ret_font = NULL;
+ WARN("Mapping with requested family %s failed, hr %#x.\n", debugstr_w(basefamily), hr);
+ }
+ }
}
if (!*mapped_length) {
- IDWriteFont *mapped_font;
+ if (*ret_font) {
+ IDWriteFont_Release(*ret_font);
+ *ret_font = NULL;
+ }
- hr = fallback_get_fallback_font(fallback, text, length, weight, style, stretch, mapped_length, &mapped_font);
+ hr = fallback_get_fallback_font(fallback, text, length, weight, style, stretch, mapped_length, ret_font);
if (FAILED(hr)) {
- /* fallback wasn't found, keep base font if any, so we can get at least some visual output */
- if (*ret_font) {
- *mapped_length = length;
- hr = S_OK;
- }
+ WARN("Mapping with fallback families failed, hr %#x.\n", hr);
}
- else {
- if (*ret_font)
- IDWriteFont_Release(*ret_font);
- *ret_font = mapped_font;
+ }
+
+ /**
+ * This is a rough hack. We search the system font collection because
+ * the system fontfallback, which would have been searched above, is not
+ * fully implemented as it isn't populated with any system fonts. Once
+ * implemented, the block below can be removed.
+ * */
+ if (!*mapped_length) {
+ IDWriteFontFamily *family;
+ IDWriteFont *font;
+ UINT32 i, count = IDWriteFontCollection_GetFontFamilyCount((IDWriteFontCollection *)fallback->systemcollection);
+ for (i = 0; i < count; i++) {
+ hr = IDWriteFontCollection_GetFontFamily((IDWriteFontCollection *)fallback->systemcollection, i, &family);
+ if (FAILED(hr)) {
+ ERR("Failed to get font family.\n");
+ continue;
+ }
+
+ hr = IDWriteFontFamily_GetFirstMatchingFont(family, weight, stretch, style, &font);
+ IDWriteFontFamily_Release(family);
+ if (FAILED(hr)) {
+ continue;
+ }
+
+ hr = fallback_map_characters(font, text, length, mapped_length);
+ if (SUCCEEDED(hr) && mapped_length > 0) {
+ *ret_font = font;
+ break;
+ }
+
+ IDWriteFont_Release(font);
}
}
+ if (!*mapped_length) {
+ *mapped_length = length == 0 ? 0 : 1;
+ hr = S_OK;
+ }
+
done:
heap_free(buff);
return hr;
diff --git a/dlls/dwrite/layout.c b/dlls/dwrite/layout.c
index 76ea23ba66b..da1261f3dc8 100644
--- a/dlls/dwrite/layout.c
+++ b/dlls/dwrite/layout.c
@@ -882,6 +882,12 @@ static HRESULT layout_resolve_fonts(struct dwrite_textlayout *layout)
goto fatal;
}
+ if (!font) {
+ hr = E_FAIL;
+ WARN("Failed to create font face, hr %#x.\n", hr);
+ goto fatal;
+ }
+
hr = IDWriteFont_CreateFontFace(font, &run->run.fontFace);
IDWriteFont_Release(font);
if (FAILED(hr)) {
diff --git a/dlls/dwrite/tests/layout.c b/dlls/dwrite/tests/layout.c
index 68a6413b2e8..65bbaa71d93 100644
--- a/dlls/dwrite/tests/layout.c
+++ b/dlls/dwrite/tests/layout.c
@@ -3302,35 +3302,23 @@ todo_wine
count = 0;
hr = IDWriteTextLayout_GetClusterMetrics(layout, clusters, 4, &count);
-todo_wine
ok(hr == S_OK, "got 0x%08x\n", hr);
-todo_wine
ok(count == 4, "got %u\n", count);
for (i = 0, width = 0.0; i < count; i++)
width += clusters[i].width;
memset(&metrics, 0xcc, sizeof(metrics));
hr = IDWriteTextLayout_GetMetrics(layout, &metrics);
-todo_wine
ok(hr == S_OK, "got 0x%08x\n", hr);
-todo_wine
ok(metrics.left == 0.0, "got %.2f\n", metrics.left);
-todo_wine
ok(metrics.top == 0.0, "got %.2f\n", metrics.top);
-todo_wine
ok(metrics.width == width, "got %.2f, expected %.2f\n", metrics.width, width);
-todo_wine
ok(metrics.widthIncludingTrailingWhitespace == width, "got %.2f, expected %.2f\n",
metrics.widthIncludingTrailingWhitespace, width);
-todo_wine
ok(metrics.height > 0.0, "got %.2f\n", metrics.height);
-todo_wine
ok(metrics.layoutWidth == 500.0, "got %.2f\n", metrics.layoutWidth);
-todo_wine
ok(metrics.layoutHeight == 1000.0, "got %.2f\n", metrics.layoutHeight);
-todo_wine
ok(metrics.maxBidiReorderingDepth == 1, "got %u\n", metrics.maxBidiReorderingDepth);
-todo_wine
ok(metrics.lineCount == 1, "got %u\n", metrics.lineCount);
IDWriteTextLayout_Release(layout);
@@ -4624,12 +4612,9 @@ static void test_MapCharacters(void)
font = NULL;
hr = IDWriteFontFallback_MapCharacters(fallback, &analysissource, 0, 1, NULL, NULL, DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, &mappedlength, &font, &scale);
-todo_wine {
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(mappedlength == 1, "got %u\n", mappedlength);
-}
ok(scale == 1.0f, "got %f\n", scale);
-todo_wine
ok(font != NULL, "got %p\n", font);
if (font) {
IDWriteFont_Release(font);
@@ -4641,16 +4626,13 @@ if (font) {
font = NULL;
hr = IDWriteFontFallback_MapCharacters(fallback, &analysissource, 0, 3, NULL, NULL, DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, &mappedlength, &font, &scale);
-todo_wine {
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(mappedlength == 3, "got %u\n", mappedlength);
-}
ok(scale == 1.0f, "got %f\n", scale);
-todo_wine
ok(font != NULL, "got %p\n", font);
-if (font) {
- IDWriteFont_Release(font);
-}
+ if (font) {
+ IDWriteFont_Release(font);
+ }
/* string 'a\x3058b' */
g_source = str2W;
mappedlength = 0;
@@ -4658,38 +4640,32 @@ if (font) {
font = NULL;
hr = IDWriteFontFallback_MapCharacters(fallback, &analysissource, 0, 3, NULL, NULL, DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, &mappedlength, &font, &scale);
-todo_wine {
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(mappedlength == 1, "got %u\n", mappedlength);
-}
ok(scale == 1.0f, "got %f\n", scale);
-todo_wine
ok(font != NULL, "got %p\n", font);
-if (font) {
- IDWriteFont_Release(font);
-}
+ if (font) {
+ IDWriteFont_Release(font);
+ }
g_source = str2W;
mappedlength = 0;
scale = 0.0f;
font = NULL;
hr = IDWriteFontFallback_MapCharacters(fallback, &analysissource, 1, 2, NULL, NULL, DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, &mappedlength, &font, &scale);
-todo_wine {
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(mappedlength == 1, "got %u\n", mappedlength);
-}
ok(scale == 1.0f, "got %f\n", scale);
-todo_wine
ok(font != NULL, "got %p\n", font);
-if (font) {
- /* font returned for Hiragana character, check if it supports Latin too */
- exists = FALSE;
- hr = IDWriteFont_HasCharacter(font, 'b', &exists);
- ok(hr == S_OK, "got 0x%08x\n", hr);
- ok(exists, "got %d\n", exists);
+ if (font) {
+ /* font returned for Hiragana character, check if it supports Latin too */
+ exists = FALSE;
+ hr = IDWriteFont_HasCharacter(font, 'b', &exists);
+ ok(hr == S_OK, "got 0x%08x\n", hr);
+ ok(exists, "got %d\n", exists);
- IDWriteFont_Release(font);
-}
+ IDWriteFont_Release(font);
+ }
/* Try with explicit collection, Tahoma will be forced. */
/* 1. Latin part */
g_source = str2W;
@@ -4712,7 +4688,10 @@ if (font) {
IDWriteLocalizedStrings_Release(strings);
IDWriteFont_Release(font);
- /* 2. Hiragana character, force Tahoma font does not support Japanese */
+ /**
+ * 2. Hiragana character. Tahoma is requested, but it doesn't support
+ * Japanese. A NULL font is returned if there is no fallback for Japanese.
+ */
g_source = str2W;
mappedlength = 0;
scale = 0.0f;
@@ -4722,7 +4701,6 @@ if (font) {
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(mappedlength == 1, "got %u\n", mappedlength);
ok(scale == 1.0f, "got %f\n", scale);
- ok(font != NULL, "got %p\n", font);
exists = FALSE;
hr = IDWriteFont_GetInformationalStrings(font, DWRITE_INFORMATIONAL_STRING_WIN32_FAMILY_NAMES, &strings, &exists);
@@ -5916,34 +5894,22 @@ static void test_GetMetrics_with_custom_fontcollection(void)
ok(hr == S_OK, "got 0x%08x\n", hr);
count = 9999;
hr = IDWriteTextLayout_GetClusterMetrics(layout, clusters, 4, &count);
- todo_wine
ok(hr == S_OK, "got 0x%08x\n", hr);
- todo_wine
ok(count == 4, "got %u\n", count);
for (i = 0, width = 0.0; i < count; i++)
width += clusters[i].width;
memset(&metrics, 0xcc, sizeof(metrics));
hr = IDWriteTextLayout_GetMetrics(layout, &metrics);
- todo_wine
ok(hr == S_OK, "got 0x%08x\n", hr);
- todo_wine
ok(metrics.left == 0.0, "got %.2f\n", metrics.left);
- todo_wine
ok(metrics.top == 0.0, "got %.2f\n", metrics.top);
- todo_wine
ok(metrics.width == width, "got %.2f, expected %.2f\n", metrics.width, width);
- todo_wine
ok(metrics.widthIncludingTrailingWhitespace == width, "got %.2f, expected %.2f\n",
metrics.widthIncludingTrailingWhitespace, width);
- todo_wine
ok(metrics.height > 0.0, "got %.2f\n", metrics.height);
- todo_wine
ok(metrics.layoutWidth == 1000.0, "got %.2f\n", metrics.layoutWidth);
- todo_wine
ok(metrics.layoutHeight == 1000.0, "got %.2f\n", metrics.layoutHeight);
- todo_wine
ok(metrics.maxBidiReorderingDepth == 1, "got %u\n", metrics.maxBidiReorderingDepth);
- todo_wine
ok(metrics.lineCount == 1, "got %u\n", metrics.lineCount);
IDWriteTextLayout_Release(layout);
--
2.17.1
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