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dwrite: Use safer method to set per-factory system collection reference. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2017-08-22 12:42:12 +03:00 committed by Alexandre Julliard
parent 072a9b00cf
commit db9990653c
1 changed files with 34 additions and 18 deletions
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52
dlls/dwrite/main.c
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@ -645,6 +645,27 @@ static struct collectionloader *factory_get_collection_loader(struct dwritefacto
return found;
}
static IDWriteFontCollection1 *factory_get_system_collection(struct dwritefactory *factory)
{
IDWriteFontCollection1 *collection;
HRESULT hr;
if (factory->system_collection) {
IDWriteFontCollection1_AddRef(factory->system_collection);
return factory->system_collection;
}
if (FAILED(hr = get_system_fontcollection(&factory->IDWriteFactory5_iface, &collection))) {
WARN("Failed to create system font collection, hr %#x.\n", hr);
return NULL;
}
if (InterlockedCompareExchangePointer((void **)&factory->system_collection, collection, NULL))
IDWriteFontCollection1_Release(collection);
return factory->system_collection;
}
static HRESULT WINAPI dwritefactory_QueryInterface(IDWriteFactory5 *iface, REFIID riid, void **obj)
{
struct dwritefactory *This = impl_from_IDWriteFactory5(iface);
@ -1095,21 +1116,23 @@ static HRESULT WINAPI dwritefactory_CreateTextFormat(IDWriteFactory5 *iface, WCH
DWRITE_FONT_STRETCH stretch, FLOAT size, WCHAR const *locale, IDWriteTextFormat **format)
{
struct dwritefactory *This = impl_from_IDWriteFactory5(iface);
IDWriteFontCollection *syscollection = NULL;
HRESULT hr;
TRACE("(%p)->(%s %p %d %d %d %f %s %p)\n", This, debugstr_w(family_name), collection, weight, style, stretch,
size, debugstr_w(locale), format);
if (!collection) {
hr = IDWriteFactory5_GetSystemFontCollection(iface, FALSE, (IDWriteFontCollection1**)&syscollection, FALSE);
if (FAILED(hr))
return hr;
if (collection)
IDWriteFontCollection_AddRef(collection);
else {
collection = (IDWriteFontCollection *)factory_get_system_collection(This);
if (!collection) {
*format = NULL;
return E_FAIL;
}
}
hr = create_textformat(family_name, collection ? collection : syscollection, weight, style, stretch, size, locale, format);
if (syscollection)
IDWriteFontCollection_Release(syscollection);
hr = create_textformat(family_name, collection, weight, style, stretch, size, locale, format);
IDWriteFontCollection_Release(collection);
return hr;
}
@ -1460,7 +1483,6 @@ static HRESULT WINAPI dwritefactory3_GetSystemFontCollection(IDWriteFactory5 *if
IDWriteFontCollection1 **collection, BOOL check_for_updates)
{
struct dwritefactory *This = impl_from_IDWriteFactory5(iface);
HRESULT hr = S_OK;
TRACE("(%p)->(%d %p %d)\n", This, include_downloadable, collection, check_for_updates);
@ -1470,14 +1492,9 @@ static HRESULT WINAPI dwritefactory3_GetSystemFontCollection(IDWriteFactory5 *if
if (check_for_updates)
FIXME("checking for system font updates not implemented\n");
if (This->system_collection)
IDWriteFontCollection1_AddRef(This->system_collection);
else
hr = get_system_fontcollection(iface, &This->system_collection);
*collection = factory_get_system_collection(This);
*collection = This->system_collection;
return hr;
return *collection ? S_OK : E_FAIL;
}
static HRESULT WINAPI dwritefactory3_GetFontDownloadQueue(IDWriteFactory5 *iface, IDWriteFontDownloadQueue **queue)
@ -1783,8 +1800,7 @@ static void init_dwritefactory(struct dwritefactory *factory, DWRITE_FACTORY_TYP
void factory_detach_fontcollection(IDWriteFactory5 *iface, IDWriteFontCollection1 *collection)
{
struct dwritefactory *factory = impl_from_IDWriteFactory5(iface);
if (factory->system_collection == collection)
factory->system_collection = NULL;
InterlockedCompareExchangePointer((void **)&factory->system_collection, NULL, collection);
if (factory->eudc_collection == collection)
factory->eudc_collection = NULL;
IDWriteFactory5_Release(iface);