dwrite: Validate per-range attribute values.

dlls/dwrite/layout.c

@@ -1937,6 +1937,9 @@ static HRESULT WINAPI dwritetextlayout_SetFontStyle(IDWriteTextLayout2 *iface, D
 
     TRACE("(%p)->(%d %s)\n", This, style, debugstr_range(&range));
 
+    if ((UINT32)style > DWRITE_FONT_STYLE_ITALIC)
+        return E_INVALIDARG;
+
     value.range = range;
     value.u.style = style;
     return set_layout_range_attr(This, LAYOUT_RANGE_ATTR_STYLE, &value);
@@ -1949,6 +1952,9 @@ static HRESULT WINAPI dwritetextlayout_SetFontStretch(IDWriteTextLayout2 *iface,
 
     TRACE("(%p)->(%d %s)\n", This, stretch, debugstr_range(&range));
 
+    if (stretch == DWRITE_FONT_STRETCH_UNDEFINED || (UINT32)stretch > DWRITE_FONT_STRETCH_ULTRA_EXPANDED)
+        return E_INVALIDARG;
+
     value.range = range;
     value.u.stretch = stretch;
     return set_layout_range_attr(This, LAYOUT_RANGE_ATTR_STRETCH, &value);
@@ -1961,6 +1967,9 @@ static HRESULT WINAPI dwritetextlayout_SetFontSize(IDWriteTextLayout2 *iface, FL
 
     TRACE("(%p)->(%.2f %s)\n", This, size, debugstr_range(&range));
 
+    if (size <= 0.0)
+        return E_INVALIDARG;
+
     value.range = range;
     value.u.fontsize = size;
     return set_layout_range_attr(This, LAYOUT_RANGE_ATTR_FONTSIZE, &value);

dlls/dwrite/tests/layout.c

@@ -1832,6 +1832,15 @@ static void test_SetFontSize(void)
     hr = IDWriteFactory_CreateTextLayout(factory, strW, 4, format, 1000.0, 1000.0, &layout);
     ok(hr == S_OK, "got 0x%08x\n", hr);
 
+    /* negative/zero size */
+    r.startPosition = 1;
+    r.length = 1;
+    hr = IDWriteTextLayout_SetFontSize(layout, -15.0, r);
+    ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
+
+    hr = IDWriteTextLayout_SetFontSize(layout, 0.0, r);
+    ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
+
     r.startPosition = 1;
     r.length = 0;
     size = 0.0;
@@ -1909,6 +1918,12 @@ static void test_SetFontFamilyName(void)
     hr = IDWriteFactory_CreateTextLayout(factory, strW, 4, format, 1000.0, 1000.0, &layout);
     ok(hr == S_OK, "got 0x%08x\n", hr);
 
+    /* NULL name */
+    r.startPosition = 1;
+    r.length = 1;
+    hr = IDWriteTextLayout_SetFontFamilyName(layout, NULL, r);
+    ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
+
     r.startPosition = 1;
     r.length = 0;
     nameW[0] = 0;
@@ -1961,6 +1976,12 @@ static void test_SetFontStyle(void)
     hr = IDWriteFactory_CreateTextLayout(factory, strW, 4, format, 1000.0, 1000.0, &layout);
     ok(hr == S_OK, "got 0x%08x\n", hr);
 
+    /* invalid style value */
+    r.startPosition = 1;
+    r.length = 1;
+    hr = IDWriteTextLayout_SetFontStyle(layout, DWRITE_FONT_STYLE_ITALIC+1, r);
+    ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
+
     r.startPosition = 1;
     r.length = 0;
     hr = IDWriteTextLayout_GetFontStyle(layout, 0, &style, &r);
@@ -2036,6 +2057,12 @@ static void test_SetFontStretch(void)
     hr = IDWriteFactory_CreateTextLayout(factory, strW, 4, format, 1000.0, 1000.0, &layout);
     ok(hr == S_OK, "got 0x%08x\n", hr);
 
+    /* invalid stretch value */
+    r.startPosition = 1;
+    r.length = 1;
+    hr = IDWriteTextLayout_SetFontStretch(layout, DWRITE_FONT_STRETCH_ULTRA_EXPANDED+1, r);
+    ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
+
     r.startPosition = 1;
     r.length = 0;
     stretch = DWRITE_FONT_STRETCH_UNDEFINED;
@@ -2093,7 +2120,6 @@ static void test_SetFontStretch(void)
     r.startPosition = 0;
     r.length = 2;
     hr = IDWriteTextLayout_SetFontStretch(layout, DWRITE_FONT_STRETCH_UNDEFINED, r);
-todo_wine
     ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
 
     IDWriteTextLayout_Release(layout);