From 159ba95782e0610b217c42a60bbfbd99737e0771 Mon Sep 17 00:00:00 2001
From: tsepez <tsepez@chromium.org>
Date: Fri, 28 Oct 2016 11:16:44 -0700
Subject: Stop casting function pointers to data pointers in
 fx_win32_gdipext.cpp.

Only bad people do that, since it's prohibited by the C standards.

Review-Url: https://codereview.chromium.org/2459603004
---
 core/fxge/win32/fx_win32_gdipext.cpp | 31 ++++++++++++++-----------------
 core/fxge/win32/win32_int.h          | 16 +++++++++++++---
 2 files changed, 27 insertions(+), 20 deletions(-)

diff --git a/core/fxge/win32/fx_win32_gdipext.cpp b/core/fxge/win32/fx_win32_gdipext.cpp
index 927f0a32e2..3dce58ffe3 100644
--- a/core/fxge/win32/fx_win32_gdipext.cpp
+++ b/core/fxge/win32/fx_win32_gdipext.cpp
@@ -434,28 +434,23 @@ typedef GpStatus(WINGDIPAPI* FuncType_GdipSetPenTransform)(GpPen* pen,
                                                            GpMatrix* matrix);
 #define CallFunc(funcname) \
   ((FuncType_##funcname)GdiplusExt.m_Functions[FuncId_##funcname])
-typedef HANDLE(__stdcall* FuncType_GdiAddFontMemResourceEx)(PVOID pbFont,
-                                                            DWORD cbFont,
-                                                            PVOID pdv,
-                                                            DWORD* pcFonts);
-typedef BOOL(__stdcall* FuncType_GdiRemoveFontMemResourceEx)(HANDLE handle);
+
 void* CGdiplusExt::GdiAddFontMemResourceEx(void* pFontdata,
                                            uint32_t size,
                                            void* pdv,
                                            uint32_t* num_face) {
-  if (m_pGdiAddFontMemResourceEx) {
-    return ((FuncType_GdiAddFontMemResourceEx)m_pGdiAddFontMemResourceEx)(
-        (PVOID)pFontdata, (DWORD)size, (PVOID)pdv, (DWORD*)num_face);
-  }
-  return nullptr;
+  if (!m_pGdiAddFontMemResourceEx)
+    return nullptr;
+
+  return m_pGdiAddFontMemResourceEx((PVOID)pFontdata, (DWORD)size, (PVOID)pdv,
+                                    (DWORD*)num_face);
 }
+
 FX_BOOL CGdiplusExt::GdiRemoveFontMemResourceEx(void* handle) {
-  if (m_pGdiRemoveFontMemResourseEx) {
-    return ((FuncType_GdiRemoveFontMemResourceEx)m_pGdiRemoveFontMemResourseEx)(
-        (HANDLE)handle);
-  }
-  return FALSE;
+  return m_pGdiRemoveFontMemResourseEx &&
+         m_pGdiRemoveFontMemResourseEx((HANDLE)handle);
 }
+
 static GpBrush* _GdipCreateBrush(DWORD argb) {
   CGdiplusExt& GdiplusExt =
       ((CWin32Platform*)CFX_GEModule::Get()->GetPlatformData())->m_GdiplusExt;
@@ -709,9 +704,11 @@ void CGdiplusExt::Load() {
     return;
   }
   m_pGdiAddFontMemResourceEx =
-      GetProcAddress(m_GdiModule, "AddFontMemResourceEx");
+      reinterpret_cast<FuncType_GdiAddFontMemResourceEx>(
+          GetProcAddress(m_GdiModule, "AddFontMemResourceEx"));
   m_pGdiRemoveFontMemResourseEx =
-      GetProcAddress(m_GdiModule, "RemoveFontMemResourceEx");
+      reinterpret_cast<FuncType_GdiRemoveFontMemResourceEx>(
+          GetProcAddress(m_GdiModule, "RemoveFontMemResourceEx"));
 }
 CGdiplusExt::~CGdiplusExt() {}
 LPVOID CGdiplusExt::LoadMemFont(LPBYTE pData, uint32_t size) {
diff --git a/core/fxge/win32/win32_int.h b/core/fxge/win32/win32_int.h
index 0cea52b908..1f2bc50f42 100644
--- a/core/fxge/win32/win32_int.h
+++ b/core/fxge/win32/win32_int.h
@@ -7,6 +7,8 @@
 #ifndef CORE_FXGE_WIN32_WIN32_INT_H_
 #define CORE_FXGE_WIN32_WIN32_INT_H_
 
+#include <windows.h>
+
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/ifx_renderdevicedriver.h"
 #include "core/fxge/win32/dwrite_int.h"
@@ -14,6 +16,12 @@
 struct FXTEXT_CHARPOS;
 struct WINDIB_Open_Args_;
 
+typedef HANDLE(__stdcall* FuncType_GdiAddFontMemResourceEx)(PVOID pbFont,
+                                                            DWORD cbFont,
+                                                            PVOID pdv,
+                                                            DWORD* pcFonts);
+typedef BOOL(__stdcall* FuncType_GdiRemoveFontMemResourceEx)(HANDLE handle);
+
 class CGdiplusExt {
  public:
   CGdiplusExt();
@@ -92,15 +100,17 @@ class CGdiplusExt {
                                 void* pdv,
                                 uint32_t* num_face);
   FX_BOOL GdiRemoveFontMemResourceEx(void* handle);
-  void* m_Functions[100];
-  void* m_pGdiAddFontMemResourceEx;
-  void* m_pGdiRemoveFontMemResourseEx;
   CFX_DIBitmap* LoadDIBitmap(WINDIB_Open_Args_ args);
 
+  FARPROC m_Functions[100];
+  FuncType_GdiAddFontMemResourceEx m_pGdiAddFontMemResourceEx;
+  FuncType_GdiRemoveFontMemResourceEx m_pGdiRemoveFontMemResourseEx;
+
  protected:
   HMODULE m_hModule;
   HMODULE m_GdiModule;
 };
+
 class CWin32Platform {
  public:
   FX_BOOL m_bHalfTone;
-- 
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