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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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/. */
#ifndef GFX_PLATFORM_GTK_H
#define GFX_PLATFORM_GTK_H
#include "gfxPlatform.h"
#include "nsAutoRef.h"
#include "nsTArray.h"
#include "mozilla/gfx/gfxVars.h"
#if (MOZ_WIDGET_GTK == 2)
extern "C" {
typedef struct _GdkDrawable GdkDrawable;
}
#endif
#ifdef MOZ_X11
struct _XDisplay;
typedef struct _XDisplay Display;
#endif // MOZ_X11
class gfxFontconfigUtils;
class gfxPlatformGtk : public gfxPlatform {
public:
gfxPlatformGtk();
virtual ~gfxPlatformGtk();
static gfxPlatformGtk *GetPlatform() {
return (gfxPlatformGtk*) gfxPlatform::GetPlatform();
}
virtual already_AddRefed<gfxASurface>
CreateOffscreenSurface(const IntSize& aSize,
gfxImageFormat aFormat) override;
virtual already_AddRefed<mozilla::gfx::ScaledFont>
GetScaledFontForFont(mozilla::gfx::DrawTarget* aTarget, gfxFont *aFont) override;
virtual nsresult GetFontList(nsIAtom *aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts) override;
virtual nsresult UpdateFontList() override;
virtual void
GetCommonFallbackFonts(uint32_t aCh, uint32_t aNextCh,
Script aRunScript,
nsTArray<const char*>& aFontList) override;
virtual gfxPlatformFontList* CreatePlatformFontList() override;
virtual nsresult GetStandardFamilyName(const nsAString& aFontName,
nsAString& aFamilyName) override;
gfxFontGroup*
CreateFontGroup(const mozilla::FontFamilyList& aFontFamilyList,
const gfxFontStyle *aStyle,
gfxTextPerfMetrics* aTextPerf,
gfxUserFontSet *aUserFontSet,
gfxFloat aDevToCssSize) override;
/**
* Look up a local platform font using the full font face name (needed to
* support @font-face src local() )
*/
virtual gfxFontEntry* LookupLocalFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
uint8_t aStyle) override;
/**
* Activate a platform font (needed to support @font-face src url() )
*
*/
virtual gfxFontEntry* MakePlatformFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
uint8_t aStyle,
const uint8_t* aFontData,
uint32_t aLength) override;
/**
* Check whether format is supported on a platform or not (if unclear,
* returns true).
*/
virtual bool IsFontFormatSupported(nsIURI *aFontURI,
uint32_t aFormatFlags) override;
/**
* Calls XFlush if xrender is enabled.
*/
virtual void FlushContentDrawing() override;
#if (MOZ_WIDGET_GTK == 2)
static void SetGdkDrawable(cairo_surface_t *target,
GdkDrawable *drawable);
static GdkDrawable *GetGdkDrawable(cairo_surface_t *target);
#endif
static int32_t GetDPI();
static double GetDPIScale();
#ifdef MOZ_X11
virtual void GetAzureBackendInfo(mozilla::widget::InfoObject &aObj) override {
gfxPlatform::GetAzureBackendInfo(aObj);
aObj.DefineProperty("CairoUseXRender", mozilla::gfx::gfxVars::UseXRender());
}
#endif
static bool UseFcFontList() { return sUseFcFontList; }
bool UseImageOffscreenSurfaces();
virtual gfxImageFormat GetOffscreenFormat() override;
bool SupportsApzWheelInput() const override {
return true;
}
bool SupportsApzTouchInput() const override;
void FontsPrefsChanged(const char *aPref) override;
// maximum number of fonts to substitute for a generic
uint32_t MaxGenericSubstitions();
bool SupportsPluginDirectBitmapDrawing() override {
return true;
}
bool AccelerateLayersByDefault() override {
#ifdef NIGHTLY_BUILD
// Only enable the GL compositor on Nightly for now until we have
// sufficient data for blocklisting.
return true;
#endif
return false;
}
#ifdef GL_PROVIDER_GLX
already_AddRefed<mozilla::gfx::VsyncSource> CreateHardwareVsyncSource() override;
#endif
#ifdef MOZ_X11
Display* GetCompositorDisplay() {
return mCompositorDisplay;
}
#endif // MOZ_X11
protected:
static gfxFontconfigUtils *sFontconfigUtils;
int8_t mMaxGenericSubstitutions;
private:
virtual void GetPlatformCMSOutputProfile(void *&mem,
size_t &size) override;
#ifdef MOZ_X11
Display* mCompositorDisplay;
#endif
// xxx - this will be removed once the new fontconfig platform font list
// replaces gfxPangoFontGroup
static bool sUseFcFontList;
};
#endif /* GFX_PLATFORM_GTK_H */
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