Remove CDWriteExt.

It is never used.

Change-Id: I09220eb16a4679c8499079c3c1375574f6fc0450
Reviewed-on: https://pdfium-review.googlesource.com/31300
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

5 files changed, 0 insertions, 522 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 8107454ec9..55632350ac 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1107,10 +1107,8 @@ jumbo_static_library("fxge") {
       "core/fxge/win32/cfx_psrenderer.h",
       "core/fxge/win32/cpsoutput.cpp",
       "core/fxge/win32/cpsoutput.h",
-      "core/fxge/win32/dwrite_int.h",
       "core/fxge/win32/fx_win32_device.cpp",
       "core/fxge/win32/fx_win32_dib.cpp",
-      "core/fxge/win32/fx_win32_dwrite.cpp",
       "core/fxge/win32/fx_win32_gdipext.cpp",
       "core/fxge/win32/fx_win32_print.cpp",
       "core/fxge/win32/win32_int.h",
diff --git a/core/fxge/win32/dwrite_int.h b/core/fxge/win32/dwrite_int.h
deleted file mode 100644
index 7fbb929c08..0000000000
--- a/core/fxge/win32/dwrite_int.h
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXGE_WIN32_DWRITE_INT_H_
-#define CORE_FXGE_WIN32_DWRITE_INT_H_
-
-#include "core/fxcrt/fx_coordinates.h"
-#include "core/fxge/dib/cfx_dibitmap.h"
-#include "core/fxge/fx_dib.h"
-
-#ifndef DECLSPEC_UUID
-#if defined(__cplusplus)
-#define DECLSPEC_UUID(x) __declspec(uuid(x))
-#else
-#define DECLSPEC_UUID(x)
-#endif
-#endif
-#ifndef DECLSPEC_NOVTABLE
-#if defined(__cplusplus)
-#define DECLSPEC_NOVTABLE __declspec(novtable)
-#else
-#define DECLSPEC_NOVTABLE
-#endif
-#endif
-#if (WINVER < 0x0500)
-#ifndef _MAC
-DECLARE_HANDLE(HMONITOR);
-#endif
-#endif
-class CDWriteExt {
- public:
-  CDWriteExt();
-  ~CDWriteExt();
-
-  void Load();
-  void Unload();
-
-  bool IsAvailable() { return !!m_pDWriteFactory; }
-
-  void* DwCreateFontFaceFromStream(uint8_t* pData,
-                                   uint32_t size,
-                                   int simulation_style);
-  bool DwCreateRenderingTarget(const RetainPtr<CFX_DIBitmap>& pSrc,
-                               void** renderTarget);
-  void DwDeleteRenderingTarget(void* renderTarget);
-  bool DwRendingString(void* renderTarget,
-                       CFX_ClipRgn* pClipRgn,
-                       FX_RECT& stringRect,
-                       CFX_Matrix* pMatrix,
-                       void* font,
-                       float font_size,
-                       FX_ARGB text_color,
-                       int glyph_count,
-                       unsigned short* glyph_indices,
-                       float baselineOriginX,
-                       float baselineOriginY,
-                       void* glyph_offsets,
-                       float* glyph_advances);
-  void DwDeleteFont(void* pFont);
-
- protected:
-  void* m_hModule;
-  void* m_pDWriteFactory;
-  void* m_pDwFontContext;
-  void* m_pDwTextRenderer;
-};
-
-#endif  // CORE_FXGE_WIN32_DWRITE_INT_H_
diff --git a/core/fxge/win32/fx_win32_device.cpp b/core/fxge/win32/fx_win32_device.cpp
index 4047866412..f5b062ba61 100644
--- a/core/fxge/win32/fx_win32_device.cpp
+++ b/core/fxge/win32/fx_win32_device.cpp
@@ -25,7 +25,6 @@
 #include "core/fxge/fx_freetype.h"
 #include "core/fxge/systemfontinfo_iface.h"
 #include "core/fxge/win32/cfx_windowsdib.h"
-#include "core/fxge/win32/dwrite_int.h"
 #include "core/fxge/win32/win32_int.h"
 #include "third_party/base/ptr_util.h"
 #include "third_party/base/stl_util.h"
diff --git a/core/fxge/win32/fx_win32_dwrite.cpp b/core/fxge/win32/fx_win32_dwrite.cpp
deleted file mode 100644
index 4d4f45f947..0000000000
--- a/core/fxge/win32/fx_win32_dwrite.cpp
+++ /dev/null
@@ -1,446 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include <dwrite.h>
-
-#include "core/fxcrt/fx_system.h"
-#include "core/fxge/cfx_cliprgn.h"
-#include "core/fxge/win32/dwrite_int.h"
-
-typedef HRESULT(__stdcall* FuncType_DWriteCreateFactory)(
-    __in DWRITE_FACTORY_TYPE,
-    __in REFIID,
-    __out IUnknown**);
-template <typename InterfaceType>
-inline void SafeRelease(InterfaceType** currentObject) {
-  if (*currentObject) {
-    (*currentObject)->Release();
-    *currentObject = nullptr;
-  }
-}
-template <typename InterfaceType>
-inline InterfaceType* SafeAcquire(InterfaceType* newObject) {
-  if (newObject) {
-    newObject->AddRef();
-  }
-  return newObject;
-}
-
-class CDwFontFileStream final : public IDWriteFontFileStream {
- public:
-  explicit CDwFontFileStream(void const* fontFileReferenceKey,
-                             UINT32 fontFileReferenceKeySize);
-
-  // IUnknown.
-  HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid,
-                                           void** ppvObject) override;
-  ULONG STDMETHODCALLTYPE AddRef() override;
-  ULONG STDMETHODCALLTYPE Release() override;
-
-  // IDWriteFontFileStream.
-  HRESULT STDMETHODCALLTYPE
-  ReadFileFragment(void const** fragmentStart,
-                   UINT64 fileOffset,
-                   UINT64 fragmentSize,
-                   OUT void** fragmentContext) override;
-  void STDMETHODCALLTYPE ReleaseFileFragment(void* fragmentContext) override;
-  HRESULT STDMETHODCALLTYPE GetFileSize(OUT UINT64* fileSize) override;
-  HRESULT STDMETHODCALLTYPE
-  GetLastWriteTime(OUT UINT64* lastWriteTime) override;
-
-  bool IsInitialized() { return !!resourcePtr_; }
-
- private:
-  ULONG refCount_;
-  void const* resourcePtr_;
-  DWORD resourceSize_;
-};
-
-class CDwFontFileLoader final : public IDWriteFontFileLoader {
- public:
-  // IUnknown.
-  HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid,
-                                           void** ppvObject) override;
-  ULONG STDMETHODCALLTYPE AddRef() override;
-  ULONG STDMETHODCALLTYPE Release() override;
-
-  // IDWriteFontFileLoader.
-  HRESULT STDMETHODCALLTYPE
-  CreateStreamFromKey(void const* fontFileReferenceKey,
-                      UINT32 fontFileReferenceKeySize,
-                      OUT IDWriteFontFileStream** fontFileStream) override;
-
-  static IDWriteFontFileLoader* GetLoader() {
-    if (!instance_) {
-      instance_ = new CDwFontFileLoader();
-    }
-    return instance_;
-  }
-  static bool IsLoaderInitialized() { return !!instance_; }
-
- private:
-  CDwFontFileLoader();
-  ULONG refCount_;
-  static IDWriteFontFileLoader* instance_;
-};
-
-class CDwFontContext {
- public:
-  explicit CDwFontContext(IDWriteFactory* dwriteFactory);
-  ~CDwFontContext();
-
-  HRESULT Initialize();
-
- private:
-  CDwFontContext(CDwFontContext const&);
-  void operator=(CDwFontContext const&);
-  HRESULT hr_;
-  IDWriteFactory* dwriteFactory_;
-};
-
-class CDwGdiTextRenderer {
- public:
-  CDwGdiTextRenderer(const RetainPtr<CFX_DIBitmap>& pBitmap,
-                     IDWriteBitmapRenderTarget* bitmapRenderTarget,
-                     IDWriteRenderingParams* renderingParams);
-  ~CDwGdiTextRenderer();
-
-  HRESULT STDMETHODCALLTYPE DrawGlyphRun(const FX_RECT& text_bbox,
-                                         __in_opt CFX_ClipRgn* pClipRgn,
-                                         __in_opt DWRITE_MATRIX const* pMatrix,
-                                         FLOAT baselineOriginX,
-                                         FLOAT baselineOriginY,
-                                         DWRITE_MEASURING_MODE measuringMode,
-                                         __in DWRITE_GLYPH_RUN const* glyphRun,
-                                         const COLORREF& textColor);
-
- private:
-  RetainPtr<CFX_DIBitmap> pBitmap_;
-  IDWriteBitmapRenderTarget* pRenderTarget_;
-  IDWriteRenderingParams* pRenderingParams_;
-};
-
-CDWriteExt::CDWriteExt()
-    : m_hModule(nullptr),
-      m_pDWriteFactory(nullptr),
-      m_pDwFontContext(nullptr),
-      m_pDwTextRenderer(nullptr) {}
-
-void CDWriteExt::Load() {}
-
-void CDWriteExt::Unload() {
-  if (m_pDwFontContext) {
-    delete (CDwFontContext*)m_pDwFontContext;
-    m_pDwFontContext = nullptr;
-  }
-  SafeRelease((IDWriteFactory**)&m_pDWriteFactory);
-}
-
-CDWriteExt::~CDWriteExt() {
-  Unload();
-}
-
-LPVOID CDWriteExt::DwCreateFontFaceFromStream(uint8_t* pData,
-                                              uint32_t size,
-                                              int simulation_style) {
-  IDWriteFactory* pDwFactory = (IDWriteFactory*)m_pDWriteFactory;
-  IDWriteFontFile* pDwFontFile = nullptr;
-  IDWriteFontFace* pDwFontFace = nullptr;
-  BOOL isSupportedFontType = false;
-  DWRITE_FONT_FILE_TYPE fontFileType;
-  DWRITE_FONT_FACE_TYPE fontFaceType;
-  UINT32 numberOfFaces;
-  DWRITE_FONT_SIMULATIONS fontStyle =
-      (DWRITE_FONT_SIMULATIONS)(simulation_style & 3);
-  HRESULT hr = S_OK;
-  hr = pDwFactory->CreateCustomFontFileReference(
-      (void const*)pData, (UINT32)size, CDwFontFileLoader::GetLoader(),
-      &pDwFontFile);
-  if (FAILED(hr)) {
-    goto failed;
-  }
-  hr = pDwFontFile->Analyze(&isSupportedFontType, &fontFileType, &fontFaceType,
-                            &numberOfFaces);
-  if (FAILED(hr) || !isSupportedFontType ||
-      fontFaceType == DWRITE_FONT_FACE_TYPE_UNKNOWN) {
-    goto failed;
-  }
-  hr = pDwFactory->CreateFontFace(fontFaceType, 1, &pDwFontFile, 0, fontStyle,
-                                  &pDwFontFace);
-  if (FAILED(hr)) {
-    goto failed;
-  }
-  SafeRelease(&pDwFontFile);
-  return pDwFontFace;
-failed:
-  SafeRelease(&pDwFontFile);
-  return nullptr;
-}
-
-bool CDWriteExt::DwCreateRenderingTarget(const RetainPtr<CFX_DIBitmap>& pBitmap,
-                                         void** renderTarget) {
-  if (pBitmap->GetFormat() > FXDIB_Argb) {
-    return false;
-  }
-  IDWriteFactory* pDwFactory = (IDWriteFactory*)m_pDWriteFactory;
-  IDWriteGdiInterop* pGdiInterop = nullptr;
-  IDWriteBitmapRenderTarget* pBitmapRenderTarget = nullptr;
-  IDWriteRenderingParams* pRenderingParams = nullptr;
-  HRESULT hr = S_OK;
-  hr = pDwFactory->GetGdiInterop(&pGdiInterop);
-  if (FAILED(hr)) {
-    goto failed;
-  }
-  hr = pGdiInterop->CreateBitmapRenderTarget(
-      nullptr, pBitmap->GetWidth(), pBitmap->GetHeight(), &pBitmapRenderTarget);
-  if (FAILED(hr)) {
-    goto failed;
-  }
-  hr = pDwFactory->CreateCustomRenderingParams(
-      1.0f, 0.0f, 1.0f, DWRITE_PIXEL_GEOMETRY_RGB,
-      DWRITE_RENDERING_MODE_DEFAULT, &pRenderingParams);
-  if (FAILED(hr)) {
-    goto failed;
-  }
-  hr = pBitmapRenderTarget->SetPixelsPerDip(1.0f);
-  if (FAILED(hr)) {
-    goto failed;
-  }
-  *(CDwGdiTextRenderer**)renderTarget =
-      new CDwGdiTextRenderer(pBitmap, pBitmapRenderTarget, pRenderingParams);
-  SafeRelease(&pGdiInterop);
-  SafeRelease(&pBitmapRenderTarget);
-  SafeRelease(&pRenderingParams);
-  return true;
-failed:
-  SafeRelease(&pGdiInterop);
-  SafeRelease(&pBitmapRenderTarget);
-  SafeRelease(&pRenderingParams);
-  return false;
-}
-
-bool CDWriteExt::DwRendingString(void* renderTarget,
-                                 CFX_ClipRgn* pClipRgn,
-                                 FX_RECT& stringRect,
-                                 CFX_Matrix* pMatrix,
-                                 void* font,
-                                 float font_size,
-                                 FX_ARGB text_color,
-                                 int glyph_count,
-                                 unsigned short* glyph_indices,
-                                 float baselineOriginX,
-                                 float baselineOriginY,
-                                 void* glyph_offsets,
-                                 float* glyph_advances) {
-  if (!renderTarget) {
-    return true;
-  }
-  CDwGdiTextRenderer* pTextRenderer = (CDwGdiTextRenderer*)renderTarget;
-  DWRITE_MATRIX transform;
-  DWRITE_GLYPH_RUN glyphRun;
-  HRESULT hr = S_OK;
-  if (pMatrix) {
-    transform.m11 = pMatrix->a;
-    transform.m12 = pMatrix->b;
-    transform.m21 = pMatrix->c;
-    transform.m22 = pMatrix->d;
-    transform.dx = pMatrix->e;
-    transform.dy = pMatrix->f;
-  }
-  glyphRun.fontFace = (IDWriteFontFace*)font;
-  glyphRun.fontEmSize = font_size;
-  glyphRun.glyphCount = glyph_count;
-  glyphRun.glyphIndices = glyph_indices;
-  glyphRun.glyphAdvances = glyph_advances;
-  glyphRun.glyphOffsets = (DWRITE_GLYPH_OFFSET*)glyph_offsets;
-  glyphRun.isSideways = false;
-  glyphRun.bidiLevel = 0;
-  hr = pTextRenderer->DrawGlyphRun(
-      stringRect, pClipRgn, pMatrix ? &transform : nullptr, baselineOriginX,
-      baselineOriginY, DWRITE_MEASURING_MODE_NATURAL, &glyphRun,
-      RGB(FXARGB_R(text_color), FXARGB_G(text_color), FXARGB_B(text_color)));
-  return SUCCEEDED(hr);
-}
-
-void CDWriteExt::DwDeleteRenderingTarget(void* renderTarget) {
-  delete (CDwGdiTextRenderer*)renderTarget;
-}
-
-void CDWriteExt::DwDeleteFont(void* pFont) {
-  if (pFont) {
-    SafeRelease((IDWriteFontFace**)&pFont);
-  }
-}
-
-CDwFontFileStream::CDwFontFileStream(void const* fontFileReferenceKey,
-                                     UINT32 fontFileReferenceKeySize) {
-  refCount_ = 0;
-  resourcePtr_ = fontFileReferenceKey;
-  resourceSize_ = fontFileReferenceKeySize;
-}
-
-HRESULT STDMETHODCALLTYPE CDwFontFileStream::QueryInterface(REFIID iid,
-                                                            void** ppvObject) {
-  if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileStream)) {
-    *ppvObject = this;
-    AddRef();
-    return S_OK;
-  }
-  *ppvObject = nullptr;
-  return E_NOINTERFACE;
-}
-
-ULONG STDMETHODCALLTYPE CDwFontFileStream::AddRef() {
-  return InterlockedIncrement((long*)(&refCount_));
-}
-
-ULONG STDMETHODCALLTYPE CDwFontFileStream::Release() {
-  ULONG newCount = InterlockedDecrement((long*)(&refCount_));
-  if (newCount == 0) {
-    delete this;
-  }
-  return newCount;
-}
-
-HRESULT STDMETHODCALLTYPE
-CDwFontFileStream::ReadFileFragment(void const** fragmentStart,
-                                    UINT64 fileOffset,
-                                    UINT64 fragmentSize,
-                                    OUT void** fragmentContext) {
-  if (fileOffset <= resourceSize_ &&
-      fragmentSize <= resourceSize_ - fileOffset) {
-    *fragmentStart = static_cast<uint8_t const*>(resourcePtr_) +
-                     static_cast<size_t>(fileOffset);
-    *fragmentContext = nullptr;
-    return S_OK;
-  }
-  *fragmentStart = nullptr;
-  *fragmentContext = nullptr;
-  return E_FAIL;
-}
-
-void STDMETHODCALLTYPE
-CDwFontFileStream::ReleaseFileFragment(void* fragmentContext) {}
-HRESULT STDMETHODCALLTYPE CDwFontFileStream::GetFileSize(OUT UINT64* fileSize) {
-  *fileSize = resourceSize_;
-  return S_OK;
-}
-
-HRESULT STDMETHODCALLTYPE
-CDwFontFileStream::GetLastWriteTime(OUT UINT64* lastWriteTime) {
-  *lastWriteTime = 0;
-  return E_NOTIMPL;
-}
-
-IDWriteFontFileLoader* CDwFontFileLoader::instance_ = nullptr;
-CDwFontFileLoader::CDwFontFileLoader() : refCount_(0) {}
-HRESULT STDMETHODCALLTYPE CDwFontFileLoader::QueryInterface(REFIID iid,
-                                                            void** ppvObject) {
-  if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileLoader)) {
-    *ppvObject = this;
-    AddRef();
-    return S_OK;
-  }
-  *ppvObject = nullptr;
-  return E_NOINTERFACE;
-}
-
-ULONG STDMETHODCALLTYPE CDwFontFileLoader::AddRef() {
-  return InterlockedIncrement((long*)(&refCount_));
-}
-
-ULONG STDMETHODCALLTYPE CDwFontFileLoader::Release() {
-  ULONG newCount = InterlockedDecrement((long*)(&refCount_));
-  if (newCount == 0) {
-    instance_ = nullptr;
-    delete this;
-  }
-  return newCount;
-}
-
-HRESULT STDMETHODCALLTYPE CDwFontFileLoader::CreateStreamFromKey(
-    void const* fontFileReferenceKey,
-    UINT32 fontFileReferenceKeySize,
-    OUT IDWriteFontFileStream** fontFileStream) {
-  *fontFileStream = nullptr;
-  CDwFontFileStream* stream =
-      new CDwFontFileStream(fontFileReferenceKey, fontFileReferenceKeySize);
-  if (!stream->IsInitialized()) {
-    delete stream;
-    return E_FAIL;
-  }
-  *fontFileStream = SafeAcquire(stream);
-  return S_OK;
-}
-
-CDwFontContext::CDwFontContext(IDWriteFactory* dwriteFactory)
-    : hr_(S_FALSE), dwriteFactory_(SafeAcquire(dwriteFactory)) {}
-
-CDwFontContext::~CDwFontContext() {
-  if (dwriteFactory_ && hr_ == S_OK) {
-    dwriteFactory_->UnregisterFontFileLoader(CDwFontFileLoader::GetLoader());
-  }
-  SafeRelease(&dwriteFactory_);
-}
-
-HRESULT CDwFontContext::Initialize() {
-  if (hr_ == S_FALSE) {
-    return hr_ = dwriteFactory_->RegisterFontFileLoader(
-               CDwFontFileLoader::GetLoader());
-  }
-  return hr_;
-}
-
-CDwGdiTextRenderer::CDwGdiTextRenderer(
-    const RetainPtr<CFX_DIBitmap>& pBitmap,
-    IDWriteBitmapRenderTarget* bitmapRenderTarget,
-    IDWriteRenderingParams* renderingParams)
-    : pBitmap_(pBitmap),
-      pRenderTarget_(SafeAcquire(bitmapRenderTarget)),
-      pRenderingParams_(SafeAcquire(renderingParams)) {}
-CDwGdiTextRenderer::~CDwGdiTextRenderer() {
-  SafeRelease(&pRenderTarget_);
-  SafeRelease(&pRenderingParams_);
-}
-
-STDMETHODIMP CDwGdiTextRenderer::DrawGlyphRun(
-    const FX_RECT& text_bbox,
-    __in_opt CFX_ClipRgn* pClipRgn,
-    __in_opt DWRITE_MATRIX const* pMatrix,
-    FLOAT baselineOriginX,
-    FLOAT baselineOriginY,
-    DWRITE_MEASURING_MODE measuringMode,
-    __in DWRITE_GLYPH_RUN const* glyphRun,
-    const COLORREF& textColor) {
-  HRESULT hr = S_OK;
-  if (pMatrix) {
-    hr = pRenderTarget_->SetCurrentTransform(pMatrix);
-    if (FAILED(hr)) {
-      return hr;
-    }
-  }
-  HDC hDC = pRenderTarget_->GetMemoryDC();
-  HBITMAP hBitmap = (HBITMAP)::GetCurrentObject(hDC, OBJ_BITMAP);
-  BITMAP bitmap;
-  GetObject(hBitmap, sizeof bitmap, &bitmap);
-  auto dib = pdfium::MakeRetain<CFX_DIBitmap>();
-  dib->Create(bitmap.bmWidth, bitmap.bmHeight,
-              bitmap.bmBitsPixel == 24 ? FXDIB_Rgb : FXDIB_Rgb32,
-              (uint8_t*)bitmap.bmBits);
-  dib->CompositeBitmap(text_bbox.left, text_bbox.top, text_bbox.Width(),
-                       text_bbox.Height(), pBitmap_, text_bbox.left,
-                       text_bbox.top, FXDIB_BLEND_NORMAL, nullptr);
-  hr = pRenderTarget_->DrawGlyphRun(baselineOriginX, baselineOriginY,
-                                    measuringMode, glyphRun, pRenderingParams_,
-                                    textColor);
-  if (FAILED(hr)) {
-    return hr;
-  }
-  pBitmap_->CompositeBitmap(text_bbox.left, text_bbox.top, text_bbox.Width(),
-                            text_bbox.Height(), dib, text_bbox.left,
-                            text_bbox.top, FXDIB_BLEND_NORMAL, pClipRgn);
-  return hr;
-}
diff --git a/core/fxge/win32/win32_int.h b/core/fxge/win32/win32_int.h
index b248522f0a..7d4ec43cb9 100644
--- a/core/fxge/win32/win32_int.h
+++ b/core/fxge/win32/win32_int.h
@@ -17,7 +17,6 @@
 #include "core/fxge/renderdevicedriver_iface.h"
 #include "core/fxge/win32/cfx_psrenderer.h"
 #include "core/fxge/win32/cpsoutput.h"
-#include "core/fxge/win32/dwrite_int.h"
 
 class CFX_ImageRenderer;
 class FXTEXT_CHARPOS;
@@ -126,7 +125,6 @@ class CWin32Platform {
  public:
   bool m_bHalfTone;
   CGdiplusExt m_GdiplusExt;
-  CDWriteExt m_DWriteExt;
 };
 
 class CGdiDeviceDriver : public RenderDeviceDriverIface {