[PATCH 3/7] dwrite: Use array allocation helper for in-memory loader.

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov 
---
 dlls/dwrite/font.c | 36 +++++++++++-------------------------
 1 file changed, 11 insertions(+), 25 deletions(-)

diff --git a/dlls/dwrite/font.c b/dlls/dwrite/font.c
index 9f642f9c91..a5caf7ea2a 100644
--- a/dlls/dwrite/font.c
+++ b/dlls/dwrite/font.c
@@ -4588,8 +4588,8 @@ struct dwrite_inmemory_fileloader
     LONG ref;

struct dwrite_inmemory_stream_data **streams;
-    UINT32 filecount;
-    UINT32 capacity;
+    size_t size;
+    size_t count;
 };

static inline struct dwrite_localfontfileloader *impl_from_IDWriteLocalFontFileLoader(IDWriteLocalFontFileLoader *iface)
@@ -6208,13 +6208,12 @@ static ULONG WINAPI inmemoryfontfileloader_Release(IDWriteInMemoryFontFileLoader
 {
     struct dwrite_inmemory_fileloader *loader = impl_from_IDWriteInMemoryFontFileLoader(iface);
     ULONG ref = InterlockedDecrement(&loader->ref);
+    size_t i;

TRACE("(%p)->(%u)\n", loader, ref);

if (!ref) {
-        UINT32 i;
-
-        for (i = 0; i < loader->filecount; i++)
+        for (i = 0; i < loader->count; ++i)
             release_inmemory_stream(loader->streams[i]);
         heap_free(loader->streams);
         heap_free(loader);
@@ -6239,7 +6238,7 @@ static HRESULT WINAPI inmemoryfontfileloader_CreateStreamFromKey(IDWriteInMemory

index = *(DWORD *)key;

-    if (index >= loader->filecount)
+    if (index >= loader->count)
         return E_INVALIDARG;

if (!(stream = heap_alloc(sizeof(*stream))))
@@ -6266,21 +6265,8 @@ static HRESULT WINAPI inmemoryfontfileloader_CreateInMemoryFontFileReference(IDW

*fontfile = NULL;

-    if (loader->filecount == loader->capacity) {
-        if (loader->streams) {
-            struct dwrite_inmemory_stream_data **ptr;
-
-            if (!(ptr = heap_realloc(loader->streams, 2 * loader->capacity * sizeof(*loader->streams))))
-                return E_OUTOFMEMORY;
-
-            loader->streams = ptr;
-            loader->capacity *= 2;
-        }
-        else {
-            loader->capacity = 16;
-            loader->streams = heap_calloc(loader->capacity, sizeof(*loader->streams));
-        }
-    }
+    if (!dwrite_array_reserve((void **)&loader->streams, &loader->size, loader->count + 1, sizeof(*loader->streams)))
+        return E_OUTOFMEMORY;

if (!(stream = heap_alloc(sizeof(*stream))))
         return E_OUTOFMEMORY;
@@ -6300,8 +6286,8 @@ static HRESULT WINAPI inmemoryfontfileloader_CreateInMemoryFontFileReference(IDW
         memcpy(stream->data, data, data_size);
     }

-    key = loader->filecount;
-    loader->streams[loader->filecount++] = stream;
+    key = loader->count;
+    loader->streams[loader->count++] = stream;

return IDWriteFactory_CreateCustomFontFileReference(factory, &key, sizeof(key),
             (IDWriteFontFileLoader *)&loader->IDWriteInMemoryFontFileLoader_iface, fontfile);
@@ -6311,9 +6297,9 @@ static UINT32 WINAPI inmemoryfontfileloader_GetFileCount(IDWriteInMemoryFontFile
 {
     struct dwrite_inmemory_fileloader *loader = impl_from_IDWriteInMemoryFontFileLoader(iface);

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

-    return loader->filecount;
+    return loader->count;
 }

static const IDWriteInMemoryFontFileLoaderVtbl inmemoryfontfileloadervtbl =