mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
423 lines
11 KiB
C++
423 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "ScaledFontDWrite.h"
|
|
#include "PathD2D.h"
|
|
#include "DrawTargetD2D.h"
|
|
#include "Logging.h"
|
|
|
|
#include <vector>
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
struct ffReferenceKey
|
|
{
|
|
uint8_t *mData;
|
|
uint32_t mSize;
|
|
};
|
|
|
|
class DWriteFontFileLoader : public IDWriteFontFileLoader
|
|
{
|
|
public:
|
|
DWriteFontFileLoader()
|
|
{
|
|
}
|
|
|
|
// IUnknown interface
|
|
IFACEMETHOD(QueryInterface)(IID const& iid, OUT void** ppObject)
|
|
{
|
|
if (iid == __uuidof(IDWriteFontFileLoader)) {
|
|
*ppObject = static_cast<IDWriteFontFileLoader*>(this);
|
|
return S_OK;
|
|
} else if (iid == __uuidof(IUnknown)) {
|
|
*ppObject = static_cast<IUnknown*>(this);
|
|
return S_OK;
|
|
} else {
|
|
return E_NOINTERFACE;
|
|
}
|
|
}
|
|
|
|
IFACEMETHOD_(ULONG, AddRef)()
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
IFACEMETHOD_(ULONG, Release)()
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
// IDWriteFontFileLoader methods
|
|
/**
|
|
* Important! Note the key here -has- to be a pointer to an
|
|
* ffReferenceKey object.
|
|
*/
|
|
virtual HRESULT STDMETHODCALLTYPE
|
|
CreateStreamFromKey(void const* fontFileReferenceKey,
|
|
UINT32 fontFileReferenceKeySize,
|
|
OUT IDWriteFontFileStream** fontFileStream);
|
|
|
|
/**
|
|
* Gets the singleton loader instance. Note that when using this font
|
|
* loader, the key must be a pointer to an FallibleTArray<uint8_t>. This
|
|
* array will be empty when the function returns.
|
|
*/
|
|
static IDWriteFontFileLoader* Instance()
|
|
{
|
|
if (!mInstance) {
|
|
mInstance = new DWriteFontFileLoader();
|
|
DrawTargetD2D::GetDWriteFactory()->
|
|
RegisterFontFileLoader(mInstance);
|
|
}
|
|
return mInstance;
|
|
}
|
|
|
|
private:
|
|
static IDWriteFontFileLoader* mInstance;
|
|
};
|
|
|
|
class DWriteFontFileStream : public IDWriteFontFileStream
|
|
{
|
|
public:
|
|
/**
|
|
* Used by the FontFileLoader to create a new font stream,
|
|
* this font stream is created from data in memory. The memory
|
|
* passed may be released after object creation, it will be
|
|
* copied internally.
|
|
*
|
|
* @param aData Font data
|
|
*/
|
|
DWriteFontFileStream(uint8_t *aData, uint32_t aSize);
|
|
~DWriteFontFileStream();
|
|
|
|
// IUnknown interface
|
|
IFACEMETHOD(QueryInterface)(IID const& iid, OUT void** ppObject)
|
|
{
|
|
if (iid == __uuidof(IDWriteFontFileStream)) {
|
|
*ppObject = static_cast<IDWriteFontFileStream*>(this);
|
|
return S_OK;
|
|
} else if (iid == __uuidof(IUnknown)) {
|
|
*ppObject = static_cast<IUnknown*>(this);
|
|
return S_OK;
|
|
} else {
|
|
return E_NOINTERFACE;
|
|
}
|
|
}
|
|
|
|
IFACEMETHOD_(ULONG, AddRef)()
|
|
{
|
|
++mRefCnt;
|
|
return mRefCnt;
|
|
}
|
|
|
|
IFACEMETHOD_(ULONG, Release)()
|
|
{
|
|
--mRefCnt;
|
|
if (mRefCnt == 0) {
|
|
delete this;
|
|
return 0;
|
|
}
|
|
return mRefCnt;
|
|
}
|
|
|
|
// IDWriteFontFileStream methods
|
|
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);
|
|
|
|
private:
|
|
std::vector<uint8_t> mData;
|
|
uint32_t mRefCnt;
|
|
};
|
|
|
|
static BYTE
|
|
GetSystemTextQuality()
|
|
{
|
|
BOOL font_smoothing;
|
|
UINT smoothing_type;
|
|
|
|
if (!SystemParametersInfo(SPI_GETFONTSMOOTHING, 0, &font_smoothing, 0)) {
|
|
return DEFAULT_QUALITY;
|
|
}
|
|
|
|
if (font_smoothing) {
|
|
if (!SystemParametersInfo(SPI_GETFONTSMOOTHINGTYPE,
|
|
0, &smoothing_type, 0)) {
|
|
return DEFAULT_QUALITY;
|
|
}
|
|
|
|
if (smoothing_type == FE_FONTSMOOTHINGCLEARTYPE) {
|
|
return CLEARTYPE_QUALITY;
|
|
}
|
|
|
|
return ANTIALIASED_QUALITY;
|
|
}
|
|
|
|
return DEFAULT_QUALITY;
|
|
}
|
|
|
|
#define GASP_TAG 0x70736167
|
|
#define GASP_DOGRAY 0x2
|
|
|
|
static inline unsigned short
|
|
readShort(const char *aBuf)
|
|
{
|
|
return (*aBuf << 8) | *(aBuf + 1);
|
|
}
|
|
|
|
static bool
|
|
DoGrayscale(IDWriteFontFace *aDWFace, unsigned int ppem)
|
|
{
|
|
void *tableContext;
|
|
char *tableData;
|
|
UINT32 tableSize;
|
|
BOOL exists;
|
|
aDWFace->TryGetFontTable(GASP_TAG, (const void**)&tableData, &tableSize, &tableContext, &exists);
|
|
|
|
if (exists) {
|
|
if (tableSize < 4) {
|
|
aDWFace->ReleaseFontTable(tableContext);
|
|
return true;
|
|
}
|
|
struct gaspRange {
|
|
unsigned short maxPPEM; // Stored big-endian
|
|
unsigned short behavior; // Stored big-endian
|
|
};
|
|
unsigned short numRanges = readShort(tableData + 2);
|
|
if (tableSize < (UINT)4 + numRanges * 4) {
|
|
aDWFace->ReleaseFontTable(tableContext);
|
|
return true;
|
|
}
|
|
gaspRange *ranges = (gaspRange *)(tableData + 4);
|
|
for (int i = 0; i < numRanges; i++) {
|
|
if (readShort((char*)&ranges[i].maxPPEM) > ppem) {
|
|
if (!(readShort((char*)&ranges[i].behavior) & GASP_DOGRAY)) {
|
|
aDWFace->ReleaseFontTable(tableContext);
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
aDWFace->ReleaseFontTable(tableContext);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
IDWriteFontFileLoader* DWriteFontFileLoader::mInstance = NULL;
|
|
|
|
HRESULT STDMETHODCALLTYPE
|
|
DWriteFontFileLoader::CreateStreamFromKey(const void *fontFileReferenceKey,
|
|
UINT32 fontFileReferenceKeySize,
|
|
IDWriteFontFileStream **fontFileStream)
|
|
{
|
|
if (!fontFileReferenceKey || !fontFileStream) {
|
|
return E_POINTER;
|
|
}
|
|
|
|
const ffReferenceKey *key = static_cast<const ffReferenceKey*>(fontFileReferenceKey);
|
|
*fontFileStream =
|
|
new DWriteFontFileStream(key->mData, key->mSize);
|
|
|
|
if (!*fontFileStream) {
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
(*fontFileStream)->AddRef();
|
|
return S_OK;
|
|
}
|
|
|
|
DWriteFontFileStream::DWriteFontFileStream(uint8_t *aData, uint32_t aSize)
|
|
: mRefCnt(0)
|
|
{
|
|
mData.resize(aSize);
|
|
memcpy(&mData.front(), aData, aSize);
|
|
}
|
|
|
|
DWriteFontFileStream::~DWriteFontFileStream()
|
|
{
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE
|
|
DWriteFontFileStream::GetFileSize(UINT64 *fileSize)
|
|
{
|
|
*fileSize = mData.size();
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE
|
|
DWriteFontFileStream::GetLastWriteTime(UINT64 *lastWriteTime)
|
|
{
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE
|
|
DWriteFontFileStream::ReadFileFragment(const void **fragmentStart,
|
|
UINT64 fileOffset,
|
|
UINT64 fragmentSize,
|
|
void **fragmentContext)
|
|
{
|
|
// We are required to do bounds checking.
|
|
if (fileOffset + fragmentSize > (UINT64)mData.size()) {
|
|
return E_FAIL;
|
|
}
|
|
// We should be alive for the duration of this.
|
|
*fragmentStart = &mData[fileOffset];
|
|
*fragmentContext = NULL;
|
|
return S_OK;
|
|
}
|
|
|
|
void STDMETHODCALLTYPE
|
|
DWriteFontFileStream::ReleaseFileFragment(void *fragmentContext)
|
|
{
|
|
}
|
|
|
|
ScaledFontDWrite::ScaledFontDWrite(uint8_t *aData, uint32_t aSize,
|
|
uint32_t aIndex, Float aGlyphSize)
|
|
: ScaledFontBase(aGlyphSize)
|
|
{
|
|
IDWriteFactory *factory = DrawTargetD2D::GetDWriteFactory();
|
|
|
|
ffReferenceKey key;
|
|
key.mData = aData;
|
|
key.mSize = aSize;
|
|
|
|
RefPtr<IDWriteFontFile> fontFile;
|
|
if (FAILED(factory->CreateCustomFontFileReference(&key, sizeof(ffReferenceKey), DWriteFontFileLoader::Instance(), byRef(fontFile)))) {
|
|
gfxWarning() << "Failed to load font file from data!";
|
|
return;
|
|
}
|
|
|
|
IDWriteFontFile *ff = fontFile;
|
|
if (FAILED(factory->CreateFontFace(DWRITE_FONT_FACE_TYPE_TRUETYPE, 1, &ff, aIndex, DWRITE_FONT_SIMULATIONS_NONE, byRef(mFontFace)))) {
|
|
gfxWarning() << "Failed to create font face from font file data!";
|
|
}
|
|
}
|
|
|
|
TemporaryRef<Path>
|
|
ScaledFontDWrite::GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget)
|
|
{
|
|
if (aTarget->GetType() != BACKEND_DIRECT2D) {
|
|
return ScaledFontBase::GetPathForGlyphs(aBuffer, aTarget);
|
|
}
|
|
|
|
RefPtr<PathBuilder> pathBuilder = aTarget->CreatePathBuilder();
|
|
|
|
PathBuilderD2D *pathBuilderD2D =
|
|
static_cast<PathBuilderD2D*>(pathBuilder.get());
|
|
|
|
CopyGlyphsToSink(aBuffer, pathBuilderD2D->GetSink());
|
|
|
|
return pathBuilder->Finish();
|
|
}
|
|
|
|
void
|
|
ScaledFontDWrite::CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder)
|
|
{
|
|
// XXX - Check path builder type!
|
|
PathBuilderD2D *pathBuilderD2D =
|
|
static_cast<PathBuilderD2D*>(aBuilder);
|
|
|
|
CopyGlyphsToSink(aBuffer, pathBuilderD2D->GetSink());
|
|
}
|
|
|
|
void
|
|
ScaledFontDWrite::CopyGlyphsToSink(const GlyphBuffer &aBuffer, ID2D1GeometrySink *aSink)
|
|
{
|
|
std::vector<UINT16> indices;
|
|
std::vector<FLOAT> advances;
|
|
std::vector<DWRITE_GLYPH_OFFSET> offsets;
|
|
indices.resize(aBuffer.mNumGlyphs);
|
|
advances.resize(aBuffer.mNumGlyphs);
|
|
offsets.resize(aBuffer.mNumGlyphs);
|
|
|
|
memset(&advances.front(), 0, sizeof(FLOAT) * aBuffer.mNumGlyphs);
|
|
for (unsigned int i = 0; i < aBuffer.mNumGlyphs; i++) {
|
|
indices[i] = aBuffer.mGlyphs[i].mIndex;
|
|
offsets[i].advanceOffset = aBuffer.mGlyphs[i].mPosition.x;
|
|
offsets[i].ascenderOffset = -aBuffer.mGlyphs[i].mPosition.y;
|
|
}
|
|
|
|
mFontFace->GetGlyphRunOutline(mSize, &indices.front(), &advances.front(),
|
|
&offsets.front(), aBuffer.mNumGlyphs,
|
|
FALSE, FALSE, aSink);
|
|
}
|
|
|
|
bool
|
|
ScaledFontDWrite::GetFontFileData(FontFileDataOutput aDataCallback, void *aBaton)
|
|
{
|
|
UINT32 fileCount = 0;
|
|
mFontFace->GetFiles(&fileCount, nullptr);
|
|
|
|
if (fileCount > 1) {
|
|
MOZ_ASSERT(false);
|
|
return false;
|
|
}
|
|
|
|
RefPtr<IDWriteFontFile> file;
|
|
mFontFace->GetFiles(&fileCount, byRef(file));
|
|
|
|
const void *referenceKey;
|
|
UINT32 refKeySize;
|
|
// XXX - This can currently crash for webfonts, as when we get the reference
|
|
// key out of the file, that can be an invalid reference key for the loader
|
|
// we use it with. The fix to this is not obvious but it will probably
|
|
// have to happen inside thebes.
|
|
file->GetReferenceKey(&referenceKey, &refKeySize);
|
|
|
|
RefPtr<IDWriteFontFileLoader> loader;
|
|
file->GetLoader(byRef(loader));
|
|
|
|
RefPtr<IDWriteFontFileStream> stream;
|
|
loader->CreateStreamFromKey(referenceKey, refKeySize, byRef(stream));
|
|
|
|
UINT64 fileSize;
|
|
stream->GetFileSize(&fileSize);
|
|
|
|
const void *fragmentStart;
|
|
void *context;
|
|
stream->ReadFileFragment(&fragmentStart, 0, fileSize, &context);
|
|
|
|
aDataCallback((uint8_t*)fragmentStart, fileSize, mFontFace->GetIndex(), mSize, aBaton);
|
|
|
|
stream->ReleaseFileFragment(context);
|
|
|
|
return true;
|
|
}
|
|
|
|
AntialiasMode
|
|
ScaledFontDWrite::GetDefaultAAMode()
|
|
{
|
|
AntialiasMode defaultMode = AA_SUBPIXEL;
|
|
|
|
switch (GetSystemTextQuality()) {
|
|
case CLEARTYPE_QUALITY:
|
|
defaultMode = AA_SUBPIXEL;
|
|
break;
|
|
case ANTIALIASED_QUALITY:
|
|
defaultMode = AA_GRAY;
|
|
break;
|
|
case DEFAULT_QUALITY:
|
|
defaultMode = AA_NONE;
|
|
break;
|
|
}
|
|
|
|
if (defaultMode == AA_GRAY) {
|
|
if (!DoGrayscale(mFontFace, mSize)) {
|
|
defaultMode = AA_NONE;
|
|
}
|
|
}
|
|
return defaultMode;
|
|
}
|
|
|
|
}
|
|
}
|