gecko/gfx/thebes/gfxPlatformGtk.h
Frederic Plourde a213281a74 b=1015218 add pref to remove Xlib offscreen surfaces on GTK3 platform r=karlt
This patch adds a new pref called "layers.use-image-offscreen-surfaces"
that makes GTK3 platform create gfxImageSurfaces for content layers
instead of gfxXlibSurfaces.

--HG--
extra : rebase_source : b803a453bafc70226f3d4c65684618f154147fdb
2014-07-23 11:04:47 +12:00

118 lines
3.5 KiB
C++

/* -*- 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 "gfxPrefs.h"
#include "nsAutoRef.h"
#include "nsTArray.h"
#if (MOZ_WIDGET_GTK == 2)
extern "C" {
typedef struct _GdkDrawable GdkDrawable;
}
#endif
class gfxFontconfigUtils;
class gfxPlatformGtk : public gfxPlatform {
public:
gfxPlatformGtk();
virtual ~gfxPlatformGtk();
static gfxPlatformGtk *GetPlatform() {
return (gfxPlatformGtk*) gfxPlatform::GetPlatform();
}
virtual already_AddRefed<gfxASurface>
CreateOffscreenSurface(const IntSize& size,
gfxContentType contentType) MOZ_OVERRIDE;
mozilla::TemporaryRef<mozilla::gfx::ScaledFont>
GetScaledFontForFont(mozilla::gfx::DrawTarget* aTarget, gfxFont *aFont);
nsresult GetFontList(nsIAtom *aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts);
nsresult UpdateFontList();
nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);
gfxFontGroup *CreateFontGroup(const mozilla::FontFamilyList& aFontFamilyList,
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 uint8_t *aFontData,
uint32_t aLength);
/**
* Check whether format is supported on a platform or not (if unclear,
* returns true).
*/
virtual bool IsFontFormatSupported(nsIURI *aFontURI,
uint32_t aFormatFlags);
#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();
bool UseXRender() {
#if defined(MOZ_X11)
if (GetContentBackend() != mozilla::gfx::BackendType::NONE &&
GetContentBackend() != mozilla::gfx::BackendType::CAIRO)
return false;
return sUseXRender;
#else
return false;
#endif
}
bool UseImageOffscreenSurfaces() {
// We want to turn on image offscreen surfaces ONLY for GTK3 builds
// since GTK2 theme rendering still requires xlib surfaces per se.
#if (MOZ_WIDGET_GTK == 3)
return gfxPrefs::UseImageOffscreenSurfaces();
#else
return false;
#endif
}
virtual gfxImageFormat GetOffscreenFormat();
virtual int GetScreenDepth() const;
protected:
static gfxFontconfigUtils *sFontconfigUtils;
private:
virtual void GetPlatformCMSOutputProfile(void *&mem, size_t &size);
#ifdef MOZ_X11
static bool sUseXRender;
#endif
};
#endif /* GFX_PLATFORM_GTK_H */