gecko-dev/gfx/thebes/gfxWindowsPlatform.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Foundation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <pavlov@pavlov.net>
* Masayuki Nakano <masayuki@d-toybox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef GFX_WINDOWS_PLATFORM_H
#define GFX_WINDOWS_PLATFORM_H
/**
* XXX to get CAIRO_HAS_D2D_SURFACE, CAIRO_HAS_DWRITE_FONT
* and cairo_win32_scaled_font_select_font
*/
#include "cairo-win32.h"
#include "gfxFontUtils.h"
#include "gfxWindowsSurface.h"
#include "gfxFont.h"
#ifdef CAIRO_HAS_DWRITE_FONT
#include "gfxDWriteFonts.h"
#endif
#include "gfxPlatform.h"
#include "gfxContext.h"
#include "nsTArray.h"
#include "nsDataHashtable.h"
#include <windows.h>
#include <objbase.h>
// Utility to get a Windows HDC from a thebes context,
// used by both GDI and Uniscribe font shapers
struct DCFromContext {
DCFromContext(gfxContext *aContext) {
dc = NULL;
nsRefPtr<gfxASurface> aSurface = aContext->CurrentSurface();
NS_ASSERTION(aSurface, "DCFromContext: null surface");
if (aSurface &&
(aSurface->GetType() == gfxASurface::SurfaceTypeWin32 ||
aSurface->GetType() == gfxASurface::SurfaceTypeWin32Printing))
{
dc = static_cast<gfxWindowsSurface*>(aSurface.get())->GetDC();
needsRelease = false;
SaveDC(dc);
cairo_scaled_font_t* scaled =
cairo_get_scaled_font(aContext->GetCairo());
cairo_win32_scaled_font_select_font(scaled, dc);
}
if (!dc) {
dc = GetDC(NULL);
SetGraphicsMode(dc, GM_ADVANCED);
needsRelease = true;
}
}
~DCFromContext() {
if (needsRelease) {
ReleaseDC(NULL, dc);
} else {
RestoreDC(dc, -1);
}
}
operator HDC () {
return dc;
}
HDC dc;
bool needsRelease;
};
// ClearType parameters set by running ClearType tuner
struct ClearTypeParameterInfo {
ClearTypeParameterInfo() :
gamma(-1), pixelStructure(-1), clearTypeLevel(-1), enhancedContrast(-1)
{ }
nsString displayName; // typically just 'DISPLAY1'
PRInt32 gamma;
PRInt32 pixelStructure;
PRInt32 clearTypeLevel;
PRInt32 enhancedContrast;
};
class THEBES_API gfxWindowsPlatform : public gfxPlatform {
public:
gfxWindowsPlatform();
virtual ~gfxWindowsPlatform();
static gfxWindowsPlatform *GetPlatform() {
return (gfxWindowsPlatform*) gfxPlatform::GetPlatform();
}
virtual gfxPlatformFontList* CreatePlatformFontList();
already_AddRefed<gfxASurface> CreateOffscreenSurface(const gfxIntSize& size,
gfxASurface::gfxContentType contentType);
virtual mozilla::RefPtr<mozilla::gfx::ScaledFont>
GetScaledFontForFont(gfxFont *aFont);
virtual already_AddRefed<gfxASurface>
GetThebesSurfaceForDrawTarget(mozilla::gfx::DrawTarget *aTarget);
virtual bool SupportsAzure(mozilla::gfx::BackendType& aBackend);
enum RenderMode {
/* Use GDI and windows surfaces */
RENDER_GDI = 0,
/* Use 32bpp image surfaces and call StretchDIBits */
RENDER_IMAGE_STRETCH32,
/* Use 32bpp image surfaces, and do 32->24 conversion before calling StretchDIBits */
RENDER_IMAGE_STRETCH24,
/* Use Direct2D rendering */
RENDER_DIRECT2D,
/* max */
RENDER_MODE_MAX
};
RenderMode GetRenderMode() { return mRenderMode; }
void SetRenderMode(RenderMode rmode) { mRenderMode = rmode; }
/**
* Updates render mode with relation to the current preferences and
* available devices.
*/
void UpdateRenderMode();
/**
* Verifies a D2D device is present and working, will attempt to create one
* it is non-functional or non-existant.
*
* \param aAttemptForce Attempt to force D2D cairo device creation by using
* cairo device creation routines.
*/
void VerifyD2DDevice(bool aAttemptForce);
HDC GetScreenDC() { return mScreenDC; }
nsresult GetFontList(nsIAtom *aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts);
nsresult UpdateFontList();
nsresult ResolveFontName(const nsAString& aFontName,
FontResolverCallback aCallback,
void *aClosure, bool& aAborted);
nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);
gfxFontGroup *CreateFontGroup(const nsAString &aFamilies,
const gfxFontStyle *aStyle,
gfxUserFontSet *aUserFontSet);
/**
* Look up a local platform font using the full font face name (needed to support @font-face src local() )
*/
virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
const nsAString& aFontName);
/**
* Activate a platform font (needed to support @font-face src url() )
*/
virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
const PRUint8 *aFontData,
PRUint32 aLength);
/**
* Check whether format is supported on a platform or not (if unclear, returns true)
*/
virtual bool IsFontFormatSupported(nsIURI *aFontURI, PRUint32 aFormatFlags);
/* Find a FontFamily/FontEntry object that represents a font on your system given a name */
gfxFontFamily *FindFontFamily(const nsAString& aName);
gfxFontEntry *FindFontEntry(const nsAString& aName, const gfxFontStyle& aFontStyle);
bool GetPrefFontEntries(const nsCString& aLangGroup, nsTArray<nsRefPtr<gfxFontEntry> > *array);
void SetPrefFontEntries(const nsCString& aLangGroup, nsTArray<nsRefPtr<gfxFontEntry> >& array);
void ClearPrefFonts() { mPrefFonts.Clear(); }
// ClearType is not always enabled even when available (e.g. Windows XP)
// if either of these prefs are enabled and apply, use ClearType rendering
bool UseClearTypeForDownloadableFonts();
bool UseClearTypeAlways();
// OS version in 16.16 major/minor form
// based on http://msdn.microsoft.com/en-us/library/ms724834(VS.85).aspx
enum {
kWindowsUnknown = 0,
kWindows2000 = 0x50000,
kWindowsXP = 0x50001,
kWindowsServer2003 = 0x50002,
kWindowsVista = 0x60000,
kWindows7 = 0x60001
};
static PRInt32 WindowsOSVersion(PRInt32 *aBuildNum = nsnull);
static void GetDLLVersion(const PRUnichar *aDLLPath, nsAString& aVersion);
// returns ClearType tuning information for each display
static void GetCleartypeParams(nsTArray<ClearTypeParameterInfo>& aParams);
virtual void FontsPrefsChanged(const char *aPref);
void SetupClearTypeParams();
#ifdef CAIRO_HAS_DWRITE_FONT
IDWriteFactory *GetDWriteFactory() { return mDWriteFactory; }
inline bool DWriteEnabled() { return mUseDirectWrite; }
inline DWRITE_MEASURING_MODE DWriteMeasuringMode() { return mMeasuringMode; }
#else
inline bool DWriteEnabled() { return false; }
#endif
#ifdef CAIRO_HAS_D2D_SURFACE
cairo_device_t *GetD2DDevice() { return mD2DDevice; }
ID3D10Device1 *GetD3D10Device() { return mD2DDevice ? cairo_d2d_device_get_device(mD2DDevice) : nsnull; }
#endif
static bool IsOptimus();
protected:
RenderMode mRenderMode;
PRInt8 mUseClearTypeForDownloadableFonts;
PRInt8 mUseClearTypeAlways;
HDC mScreenDC;
private:
void Init();
bool mUseDirectWrite;
bool mUsingGDIFonts;
#ifdef CAIRO_HAS_DWRITE_FONT
nsRefPtr<IDWriteFactory> mDWriteFactory;
DWRITE_MEASURING_MODE mMeasuringMode;
#endif
#ifdef CAIRO_HAS_D2D_SURFACE
cairo_device_t *mD2DDevice;
#endif
virtual qcms_profile* GetPlatformCMSOutputProfile();
// TODO: unify this with mPrefFonts (NB: holds families, not fonts) in gfxPlatformFontList
nsDataHashtable<nsCStringHashKey, nsTArray<nsRefPtr<gfxFontEntry> > > mPrefFonts;
};
#endif /* GFX_WINDOWS_PLATFORM_H */