diff options
Diffstat (limited to 'core/fxge/win32/fx_win32_dwrite.cpp')
| -rw-r--r-- | core/fxge/win32/fx_win32_dwrite.cpp | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/core/fxge/win32/fx_win32_dwrite.cpp b/core/fxge/win32/fx_win32_dwrite.cpp new file mode 100644 index 0000000000..972295c5cc --- /dev/null +++ b/core/fxge/win32/fx_win32_dwrite.cpp @@ -0,0 +1,410 @@ +// 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 "core/include/fxge/fx_ge.h" + +#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_ +#include <dwrite.h> + +#include "core/fxge/win32/dwrite_int.h" +#include "core/include/fxge/fx_ge_win32.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 = NULL; + } +} +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); + virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, + void** ppvObject); + virtual ULONG STDMETHODCALLTYPE AddRef(); + virtual ULONG STDMETHODCALLTYPE Release(); + virtual HRESULT STDMETHODCALLTYPE + ReadFileFragment(void const** fragmentStart, + UINT64 fileOffset, + UINT64 fragmentSize, + OUT void** fragmentContext); + virtual void STDMETHODCALLTYPE ReleaseFileFragment(void* fragmentContext); + virtual HRESULT STDMETHODCALLTYPE GetFileSize(OUT UINT64* fileSize); + virtual HRESULT STDMETHODCALLTYPE GetLastWriteTime(OUT UINT64* lastWriteTime); + bool IsInitialized() { return resourcePtr_ != NULL; } + + private: + ULONG refCount_; + void const* resourcePtr_; + DWORD resourceSize_; +}; +class CDwFontFileLoader final : public IDWriteFontFileLoader { + public: + virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, + void** ppvObject); + virtual ULONG STDMETHODCALLTYPE AddRef(); + virtual ULONG STDMETHODCALLTYPE Release(); + virtual HRESULT STDMETHODCALLTYPE + CreateStreamFromKey(void const* fontFileReferenceKey, + UINT32 fontFileReferenceKeySize, + OUT IDWriteFontFileStream** fontFileStream); + + static IDWriteFontFileLoader* GetLoader() { + if (!instance_) { + instance_ = new CDwFontFileLoader(); + } + return instance_; + } + static bool IsLoaderInitialized() { return instance_ != NULL; } + + private: + CDwFontFileLoader(); + ULONG refCount_; + static IDWriteFontFileLoader* instance_; +}; +class CDwFontContext { + public: + CDwFontContext(IDWriteFactory* dwriteFactory); + ~CDwFontContext(); + HRESULT Initialize(); + + private: + CDwFontContext(CDwFontContext const&); + void operator=(CDwFontContext const&); + HRESULT hr_; + IDWriteFactory* dwriteFactory_; +}; +class CDwGdiTextRenderer { + public: + CDwGdiTextRenderer(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: + CFX_DIBitmap* pBitmap_; + IDWriteBitmapRenderTarget* pRenderTarget_; + IDWriteRenderingParams* pRenderingParams_; +}; +CDWriteExt::CDWriteExt() { + m_hModule = NULL; + m_pDWriteFactory = NULL; + m_pDwFontContext = NULL; + m_pDwTextRenderer = NULL; +} +void CDWriteExt::Load() {} +void CDWriteExt::Unload() { + if (m_pDwFontContext) { + delete (CDwFontContext*)m_pDwFontContext; + m_pDwFontContext = NULL; + } + SafeRelease((IDWriteFactory**)&m_pDWriteFactory); +} +CDWriteExt::~CDWriteExt() { + Unload(); +} +LPVOID CDWriteExt::DwCreateFontFaceFromStream(uint8_t* pData, + FX_DWORD size, + int simulation_style) { + IDWriteFactory* pDwFactory = (IDWriteFactory*)m_pDWriteFactory; + IDWriteFontFile* pDwFontFile = NULL; + IDWriteFontFace* pDwFontFace = NULL; + 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 NULL; +} +FX_BOOL CDWriteExt::DwCreateRenderingTarget(CFX_DIBitmap* pBitmap, + void** renderTarget) { + if (pBitmap->GetFormat() > FXDIB_Argb) { + return FALSE; + } + IDWriteFactory* pDwFactory = (IDWriteFactory*)m_pDWriteFactory; + IDWriteGdiInterop* pGdiInterop = NULL; + IDWriteBitmapRenderTarget* pBitmapRenderTarget = NULL; + IDWriteRenderingParams* pRenderingParams = NULL; + HRESULT hr = S_OK; + hr = pDwFactory->GetGdiInterop(&pGdiInterop); + if (FAILED(hr)) { + goto failed; + } + hr = pGdiInterop->CreateBitmapRenderTarget( + NULL, 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; +} +FX_BOOL CDWriteExt::DwRendingString(void* renderTarget, + CFX_ClipRgn* pClipRgn, + FX_RECT& stringRect, + CFX_Matrix* pMatrix, + void* font, + FX_FLOAT font_size, + FX_ARGB text_color, + int glyph_count, + unsigned short* glyph_indices, + FX_FLOAT baselineOriginX, + FX_FLOAT baselineOriginY, + void* glyph_offsets, + FX_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 : NULL, 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 = NULL; + 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 = NULL; + return S_OK; + } + *fragmentStart = NULL; + *fragmentContext = NULL; + 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_ = NULL; +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 = NULL; + return E_NOINTERFACE; +} +ULONG STDMETHODCALLTYPE CDwFontFileLoader::AddRef() { + return InterlockedIncrement((long*)(&refCount_)); +} +ULONG STDMETHODCALLTYPE CDwFontFileLoader::Release() { + ULONG newCount = InterlockedDecrement((long*)(&refCount_)); + if (newCount == 0) { + instance_ = NULL; + delete this; + } + return newCount; +} +HRESULT STDMETHODCALLTYPE CDwFontFileLoader::CreateStreamFromKey( + void const* fontFileReferenceKey, + UINT32 fontFileReferenceKeySize, + OUT IDWriteFontFileStream** fontFileStream) { + *fontFileStream = NULL; + 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( + 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); + CFX_DIBitmap dib; + 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, NULL); + 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; +} +#endif |