michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include <QPixmap>
michael@0: #include <QWindow>
michael@0: #ifdef MOZ_X11
michael@0: #include <qpa/qplatformnativeinterface.h>
michael@0: #include <qpa/qplatformintegration.h>
michael@0: #endif
michael@0: #include <QGuiApplication>
michael@0: #include <QScreen>
michael@0: 
michael@0: #include "gfxQtPlatform.h"
michael@0: 
michael@0: #include "gfxFontconfigUtils.h"
michael@0: 
michael@0: #include "mozilla/gfx/2D.h"
michael@0: 
michael@0: #include "cairo.h"
michael@0: 
michael@0: #include "gfxImageSurface.h"
michael@0: #include "gfxQPainterSurface.h"
michael@0: #include "nsUnicodeProperties.h"
michael@0: 
michael@0: #include "gfxPangoFonts.h"
michael@0: #include "gfxContext.h"
michael@0: #include "gfxUserFontSet.h"
michael@0: 
michael@0: #include "nsUnicharUtils.h"
michael@0: 
michael@0: #include "nsMathUtils.h"
michael@0: #include "nsTArray.h"
michael@0: #ifdef MOZ_X11
michael@0: #include "gfxXlibSurface.h"
michael@0: #include "prenv.h"
michael@0: #endif
michael@0: 
michael@0: #include "qcms.h"
michael@0: 
michael@0: #include "mozilla/Preferences.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::unicode;
michael@0: using namespace mozilla::gfx;
michael@0: 
michael@0: gfxFontconfigUtils *gfxQtPlatform::sFontconfigUtils = nullptr;
michael@0: #ifdef MOZ_X11
michael@0: bool gfxQtPlatform::sUseXRender = true;
michael@0: #endif
michael@0: 
michael@0: static gfxImageFormat sOffscreenFormat = gfxImageFormat::RGB24;
michael@0: 
michael@0: gfxQtPlatform::gfxQtPlatform()
michael@0: {
michael@0: #ifdef MOZ_X11
michael@0:     sUseXRender = mozilla::Preferences::GetBool("gfx.xrender.enabled");
michael@0: #endif
michael@0:     if (!sFontconfigUtils)
michael@0:         sFontconfigUtils = gfxFontconfigUtils::GetFontconfigUtils();
michael@0: 
michael@0:     mScreenDepth = qApp->primaryScreen()->depth();
michael@0:     if (mScreenDepth == 16) {
michael@0:         sOffscreenFormat = gfxImageFormat::RGB16_565;
michael@0:     }
michael@0:     uint32_t canvasMask = BackendTypeBit(BackendType::CAIRO) | BackendTypeBit(BackendType::SKIA);
michael@0:     uint32_t contentMask = BackendTypeBit(BackendType::CAIRO) | BackendTypeBit(BackendType::SKIA);
michael@0:     InitBackendPrefs(canvasMask, BackendType::CAIRO,
michael@0:                      contentMask, BackendType::CAIRO);
michael@0: }
michael@0: 
michael@0: gfxQtPlatform::~gfxQtPlatform()
michael@0: {
michael@0:     gfxFontconfigUtils::Shutdown();
michael@0:     sFontconfigUtils = nullptr;
michael@0: 
michael@0:     gfxPangoFontGroup::Shutdown();
michael@0: }
michael@0: 
michael@0: #ifdef MOZ_X11
michael@0: Display*
michael@0: gfxQtPlatform::GetXDisplay(QWindow* aWindow)
michael@0: {
michael@0:     return (Display*)(qApp->platformNativeInterface()->
michael@0:         nativeResourceForScreen("display", aWindow ? aWindow->screen() : qApp->primaryScreen()));
michael@0: }
michael@0: 
michael@0: Screen*
michael@0: gfxQtPlatform::GetXScreen(QWindow* aWindow)
michael@0: {
michael@0:     return ScreenOfDisplay(GetXDisplay(aWindow),
michael@0:         (int)(intptr_t)qApp->platformNativeInterface()->
michael@0:             nativeResourceForScreen("screen", aWindow ? aWindow->screen() : qApp->primaryScreen()));
michael@0: }
michael@0: #endif
michael@0: 
michael@0: already_AddRefed<gfxASurface>
michael@0: gfxQtPlatform::CreateOffscreenSurface(const IntSize& size,
michael@0:                                       gfxContentType contentType)
michael@0: {
michael@0:     gfxImageFormat imageFormat = OptimalFormatForContent(contentType);
michael@0: 
michael@0:     nsRefPtr<gfxASurface> newSurface =
michael@0:         new gfxImageSurface(gfxIntSize(size.width, size.height), imageFormat);
michael@0: 
michael@0:     return newSurface.forget();
michael@0: }
michael@0: 
michael@0: already_AddRefed<gfxASurface>
michael@0: gfxQtPlatform::OptimizeImage(gfxImageSurface *aSurface,
michael@0:                              gfxImageFormat format)
michael@0: {
michael@0:     /* Qt have no special offscreen surfaces so we can avoid a copy */
michael@0:     if (OptimalFormatForContent(gfxASurface::ContentFromFormat(format)) ==
michael@0:         format) {
michael@0:         return nullptr;
michael@0:     }
michael@0: 
michael@0:     return gfxPlatform::OptimizeImage(aSurface, format);
michael@0: }
michael@0: 
michael@0: 
michael@0: nsresult
michael@0: gfxQtPlatform::GetFontList(nsIAtom *aLangGroup,
michael@0:                            const nsACString& aGenericFamily,
michael@0:                            nsTArray<nsString>& aListOfFonts)
michael@0: {
michael@0:     return sFontconfigUtils->GetFontList(aLangGroup, aGenericFamily,
michael@0:                                          aListOfFonts);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: gfxQtPlatform::UpdateFontList()
michael@0: {
michael@0:     return sFontconfigUtils->UpdateFontList();
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: gfxQtPlatform::ResolveFontName(const nsAString& aFontName,
michael@0:                                 FontResolverCallback aCallback,
michael@0:                                 void *aClosure,
michael@0:                                 bool& aAborted)
michael@0: {
michael@0:     return sFontconfigUtils->ResolveFontName(aFontName, aCallback,
michael@0:                                              aClosure, aAborted);
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: gfxQtPlatform::GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName)
michael@0: {
michael@0:     return sFontconfigUtils->GetStandardFamilyName(aFontName, aFamilyName);
michael@0: }
michael@0: 
michael@0: gfxFontGroup *
michael@0: gfxQtPlatform::CreateFontGroup(const nsAString &aFamilies,
michael@0:                                const gfxFontStyle *aStyle,
michael@0:                                gfxUserFontSet* aUserFontSet)
michael@0: {
michael@0:     return new gfxPangoFontGroup(aFamilies, aStyle, aUserFontSet);
michael@0: }
michael@0: 
michael@0: gfxFontEntry*
michael@0: gfxQtPlatform::LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
michael@0:                                 const nsAString& aFontName)
michael@0: {
michael@0:     return gfxPangoFontGroup::NewFontEntry(*aProxyEntry, aFontName);
michael@0: }
michael@0: 
michael@0: gfxFontEntry*
michael@0: gfxQtPlatform::MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
michael@0:                                  const uint8_t *aFontData, uint32_t aLength)
michael@0: {
michael@0:     // passing ownership of the font data to the new font entry
michael@0:     return gfxPangoFontGroup::NewFontEntry(*aProxyEntry,
michael@0:                                            aFontData, aLength);
michael@0: }
michael@0: 
michael@0: bool
michael@0: gfxQtPlatform::SupportsOffMainThreadCompositing()
michael@0: {
michael@0: #if defined(MOZ_X11) && !defined(NIGHTLY_BUILD)
michael@0:   return (PR_GetEnv("MOZ_USE_OMTC") != nullptr) ||
michael@0:          (PR_GetEnv("MOZ_OMTC_ENABLED") != nullptr);
michael@0: #else
michael@0:   return true;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: bool
michael@0: gfxQtPlatform::IsFontFormatSupported(nsIURI *aFontURI, uint32_t aFormatFlags)
michael@0: {
michael@0:     // check for strange format flags
michael@0:     NS_ASSERTION(!(aFormatFlags & gfxUserFontSet::FLAG_FORMAT_NOT_USED),
michael@0:                  "strange font format hint set");
michael@0: 
michael@0:     // accept supported formats
michael@0:     // Pango doesn't apply features from AAT TrueType extensions.
michael@0:     // Assume that if this is the only SFNT format specified,
michael@0:     // then AAT extensions are required for complex script support.
michael@0:     if (aFormatFlags & (gfxUserFontSet::FLAG_FORMAT_WOFF     |
michael@0:                         gfxUserFontSet::FLAG_FORMAT_OPENTYPE |
michael@0:                         gfxUserFontSet::FLAG_FORMAT_TRUETYPE)) {
michael@0:         return true;
michael@0:     }
michael@0: 
michael@0:     // reject all other formats, known and unknown
michael@0:     if (aFormatFlags != 0) {
michael@0:         return false;
michael@0:     }
michael@0: 
michael@0:     // no format hint set, need to look at data
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: void
michael@0: gfxQtPlatform::GetPlatformCMSOutputProfile(void *&mem, size_t &size)
michael@0: {
michael@0:     mem = nullptr;
michael@0:     size = 0;
michael@0: }
michael@0: 
michael@0: int32_t
michael@0: gfxQtPlatform::GetDPI()
michael@0: {
michael@0:     return qApp->primaryScreen()->logicalDotsPerInch();
michael@0: }
michael@0: 
michael@0: gfxImageFormat
michael@0: gfxQtPlatform::GetOffscreenFormat()
michael@0: {
michael@0:     return sOffscreenFormat;
michael@0: }
michael@0: 
michael@0: int
michael@0: gfxQtPlatform::GetScreenDepth() const
michael@0: {
michael@0:     return mScreenDepth;
michael@0: }
michael@0: 
michael@0: TemporaryRef<ScaledFont>
michael@0: gfxQtPlatform::GetScaledFontForFont(DrawTarget* aTarget, gfxFont* aFont)
michael@0: {
michael@0:     return GetScaledFontForFontWithCairoSkia(aTarget, aFont);
michael@0: }