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gecko/gfx/thebes/gfxAndroidPlatform.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=8 sts=4 et sw=4 tw=80: */
/* 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 "base/basictypes.h"
#include "gfxAndroidPlatform.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/CountingAllocatorBase.h"
#include "mozilla/Preferences.h"
#include "gfx2DGlue.h"
#include "gfxFT2FontList.h"
#include "gfxImageSurface.h"
#include "gfxTextRun.h"
#include "mozilla/dom/ContentChild.h"
#include "nsXULAppAPI.h"
#include "nsIScreen.h"
#include "nsIScreenManager.h"
#include "nsILocaleService.h"
#include "nsServiceManagerUtils.h"
#include "gfxPrefs.h"
#include "cairo.h"
#include "VsyncSource.h"
#ifdef MOZ_WIDGET_ANDROID
#include "AndroidBridge.h"
#endif
#ifdef MOZ_WIDGET_GONK
#include <cutils/properties.h>
#include "mozilla/layers/CompositorParent.h"
#include "HwcComposer2D.h"
#endif
#include "ft2build.h"
#include FT_FREETYPE_H
#include FT_MODULE_H
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::gfx;
static FT_Library gPlatformFTLibrary = nullptr;
class FreetypeReporter final : public nsIMemoryReporter,
public CountingAllocatorBase<FreetypeReporter>
{
private:
~FreetypeReporter() {}
public:
NS_DECL_ISUPPORTS
static void* Malloc(FT_Memory, long size)
{
return CountingMalloc(size);
}
static void Free(FT_Memory, void* p)
{
return CountingFree(p);
}
static void*
Realloc(FT_Memory, long cur_size, long new_size, void* p)
{
return CountingRealloc(p, new_size);
}
NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport,
nsISupports* aData, bool aAnonymize)
{
return MOZ_COLLECT_REPORT(
"explicit/freetype", KIND_HEAP, UNITS_BYTES, MemoryAllocated(),
"Memory used by Freetype.");
}
};
NS_IMPL_ISUPPORTS(FreetypeReporter, nsIMemoryReporter)
template<> Atomic<size_t> CountingAllocatorBase<FreetypeReporter>::sAmount(0);
static FT_MemoryRec_ sFreetypeMemoryRecord;
gfxAndroidPlatform::gfxAndroidPlatform()
{
// A custom allocator. It counts allocations, enabling memory reporting.
sFreetypeMemoryRecord.user = nullptr;
sFreetypeMemoryRecord.alloc = FreetypeReporter::Malloc;
sFreetypeMemoryRecord.free = FreetypeReporter::Free;
sFreetypeMemoryRecord.realloc = FreetypeReporter::Realloc;
// These two calls are equivalent to FT_Init_FreeType(), but allow us to
// provide a custom memory allocator.
FT_New_Library(&sFreetypeMemoryRecord, &gPlatformFTLibrary);
FT_Add_Default_Modules(gPlatformFTLibrary);
RegisterStrongMemoryReporter(new FreetypeReporter());
nsCOMPtr<nsIScreenManager> screenMgr = do_GetService("@mozilla.org/gfx/screenmanager;1");
nsCOMPtr<nsIScreen> screen;
screenMgr->GetPrimaryScreen(getter_AddRefs(screen));
mScreenDepth = 24;
screen->GetColorDepth(&mScreenDepth);
mOffscreenFormat = mScreenDepth == 16
? gfxImageFormat::RGB16_565
: gfxImageFormat::RGB24;
if (gfxPrefs::AndroidRGB16Force()) {
mOffscreenFormat = gfxImageFormat::RGB16_565;
}
#ifdef MOZ_WIDGET_GONK
char propQemu[PROPERTY_VALUE_MAX];
property_get("ro.kernel.qemu", propQemu, "");
mIsInGonkEmulator = !strncmp(propQemu, "1", 1);
#endif
}
gfxAndroidPlatform::~gfxAndroidPlatform()
{
FT_Done_Library(gPlatformFTLibrary);
gPlatformFTLibrary = nullptr;
}
already_AddRefed<gfxASurface>
gfxAndroidPlatform::CreateOffscreenSurface(const IntSize& size,
gfxContentType contentType)
{
nsRefPtr<gfxASurface> newSurface;
newSurface = new gfxImageSurface(size, OptimalFormatForContent(contentType));
return newSurface.forget();
}
static bool
IsJapaneseLocale()
{
static bool sInitialized = false;
static bool sIsJapanese = false;
if (!sInitialized) {
sInitialized = true;
do { // to allow 'break' to abandon this block if a call fails
nsresult rv;
nsCOMPtr<nsILocaleService> ls =
do_GetService(NS_LOCALESERVICE_CONTRACTID, &rv);
if (NS_FAILED(rv)) {
break;
}
nsCOMPtr<nsILocale> appLocale;
rv = ls->GetApplicationLocale(getter_AddRefs(appLocale));
if (NS_FAILED(rv)) {
break;
}
nsString localeStr;
rv = appLocale->
GetCategory(NS_LITERAL_STRING(NSILOCALE_MESSAGE), localeStr);
if (NS_FAILED(rv)) {
break;
}
const nsAString& lang = nsDependentSubstring(localeStr, 0, 2);
if (lang.EqualsLiteral("ja")) {
sIsJapanese = true;
}
} while (false);
}
return sIsJapanese;
}
void
gfxAndroidPlatform::GetCommonFallbackFonts(uint32_t aCh, uint32_t aNextCh,
int32_t aRunScript,
nsTArray<const char*>& aFontList)
{
static const char kDroidSansJapanese[] = "Droid Sans Japanese";
static const char kMotoyaLMaru[] = "MotoyaLMaru";
if (aNextCh == 0xfe0fu) {
// if char is followed by VS16, try for a color emoji glyph
aFontList.AppendElement("Noto Color Emoji");
}
if (IS_IN_BMP(aCh)) {
// try language-specific "Droid Sans *" and "Noto Sans *" fonts for
// certain blocks, as most devices probably have these
uint8_t block = (aCh >> 8) & 0xff;
switch (block) {
case 0x05:
aFontList.AppendElement("Droid Sans Hebrew");
aFontList.AppendElement("Droid Sans Armenian");
break;
case 0x06:
aFontList.AppendElement("Droid Sans Arabic");
break;
case 0x09:
aFontList.AppendElement("Noto Sans Devanagari");
aFontList.AppendElement("Droid Sans Devanagari");
break;
case 0x0b:
aFontList.AppendElement("Noto Sans Tamil");
aFontList.AppendElement("Droid Sans Tamil");
break;
case 0x0e:
aFontList.AppendElement("Noto Sans Thai");
aFontList.AppendElement("Droid Sans Thai");
break;
case 0x10: case 0x2d:
aFontList.AppendElement("Droid Sans Georgian");
break;
case 0x12: case 0x13:
aFontList.AppendElement("Droid Sans Ethiopic");
break;
case 0xf9: case 0xfa:
if (IsJapaneseLocale()) {
aFontList.AppendElement(kMotoyaLMaru);
aFontList.AppendElement(kDroidSansJapanese);
}
break;
default:
if (block >= 0x2e && block <= 0x9f && IsJapaneseLocale()) {
aFontList.AppendElement(kMotoyaLMaru);
aFontList.AppendElement(kDroidSansJapanese);
}
break;
}
}
// and try Droid Sans Fallback as a last resort
aFontList.AppendElement("Droid Sans Fallback");
}
nsresult
gfxAndroidPlatform::GetFontList(nsIAtom *aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts)
{
gfxPlatformFontList::PlatformFontList()->GetFontList(aLangGroup,
aGenericFamily,
aListOfFonts);
return NS_OK;
}
void
gfxAndroidPlatform::GetFontList(InfallibleTArray<FontListEntry>* retValue)
{
gfxFT2FontList::PlatformFontList()->GetFontList(retValue);
}
nsresult
gfxAndroidPlatform::UpdateFontList()
{
gfxPlatformFontList::PlatformFontList()->UpdateFontList();
return NS_OK;
}
nsresult
gfxAndroidPlatform::GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName)
{
gfxPlatformFontList::PlatformFontList()->GetStandardFamilyName(aFontName, aFamilyName);
return NS_OK;
}
gfxPlatformFontList*
gfxAndroidPlatform::CreatePlatformFontList()
{
gfxPlatformFontList* list = new gfxFT2FontList();
if (NS_SUCCEEDED(list->InitFontList())) {
return list;
}
gfxPlatformFontList::Shutdown();
return nullptr;
}
bool
gfxAndroidPlatform::IsFontFormatSupported(nsIURI *aFontURI, uint32_t aFormatFlags)
{
// check for strange format flags
NS_ASSERTION(!(aFormatFlags & gfxUserFontSet::FLAG_FORMAT_NOT_USED),
"strange font format hint set");
// accept supported formats
if (aFormatFlags & gfxUserFontSet::FLAG_FORMATS_COMMON) {
return true;
}
// reject all other formats, known and unknown
if (aFormatFlags != 0) {
return false;
}
// no format hint set, need to look at data
return true;
}
gfxFontGroup *
gfxAndroidPlatform::CreateFontGroup(const FontFamilyList& aFontFamilyList,
const gfxFontStyle *aStyle,
gfxUserFontSet* aUserFontSet)
{
return new gfxFontGroup(aFontFamilyList, aStyle, aUserFontSet);
}
FT_Library
gfxAndroidPlatform::GetFTLibrary()
{
return gPlatformFTLibrary;
}
gfxFontEntry*
gfxAndroidPlatform::LookupLocalFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
bool aItalic)
{
return gfxPlatformFontList::PlatformFontList()->LookupLocalFont(aFontName,
aWeight,
aStretch,
aItalic);
}
gfxFontEntry*
gfxAndroidPlatform::MakePlatformFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
bool aItalic,
const uint8_t* aFontData,
uint32_t aLength)
{
return gfxPlatformFontList::PlatformFontList()->MakePlatformFont(aFontName,
aWeight,
aStretch,
aItalic,
aFontData,
aLength);
}
TemporaryRef<ScaledFont>
gfxAndroidPlatform::GetScaledFontForFont(DrawTarget* aTarget, gfxFont *aFont)
{
return GetScaledFontForFontWithCairoSkia(aTarget, aFont);
}
bool
gfxAndroidPlatform::FontHintingEnabled()
{
// In "mobile" builds, we sometimes use non-reflow-zoom, so we
// might not want hinting. Let's see.
#ifdef MOZ_USING_ANDROID_JAVA_WIDGETS
// On android-java, we currently only use gecko to render web
// content that can always be be non-reflow-zoomed. So turn off
// hinting.
//
// XXX when gecko-android-java is used as an "app runtime", we may
// want to re-enable hinting for non-browser processes there.
return false;
#endif // MOZ_USING_ANDROID_JAVA_WIDGETS
#ifdef MOZ_WIDGET_GONK
// On B2G, the UX preference is currently to keep hinting disabled
// for all text (see bug 829523).
return false;
#endif
// Currently, we don't have any other targets, but if/when we do,
// decide how to handle them here.
NS_NOTREACHED("oops, what platform is this?");
return gfxPlatform::FontHintingEnabled();
}
bool
gfxAndroidPlatform::RequiresLinearZoom()
{
#ifdef MOZ_USING_ANDROID_JAVA_WIDGETS
// On android-java, we currently only use gecko to render web
// content that can always be be non-reflow-zoomed.
//
// XXX when gecko-android-java is used as an "app runtime", we may
// want to treat it like B2G and use linear zoom only for the web
// browser process, not other apps.
return true;
#endif
#ifdef MOZ_WIDGET_GONK
// On B2G, we need linear zoom for the browser, but otherwise prefer
// the improved glyph spacing that results from respecting the device
// pixel resolution for glyph layout (see bug 816614).
return XRE_GetProcessType() == GeckoProcessType_Content &&
ContentChild::GetSingleton()->IsForBrowser();
#endif
NS_NOTREACHED("oops, what platform is this?");
return gfxPlatform::RequiresLinearZoom();
}
int
gfxAndroidPlatform::GetScreenDepth() const
{
return mScreenDepth;
}
bool
gfxAndroidPlatform::UseAcceleratedSkiaCanvas()
{
return HaveChoiceOfHWAndSWCanvas() && gfxPlatform::UseAcceleratedSkiaCanvas();
}
bool gfxAndroidPlatform::HaveChoiceOfHWAndSWCanvas()
{
#ifdef MOZ_WIDGET_ANDROID
if (AndroidBridge::Bridge()->GetAPIVersion() < 11) {
// It's slower than software due to not having a compositing fast path
return false;
}
#endif
return gfxPlatform::HaveChoiceOfHWAndSWCanvas();
}
#ifdef MOZ_WIDGET_GONK
class GonkVsyncSource final : public VsyncSource
{
public:
GonkVsyncSource()
{
}
virtual Display& GetGlobalDisplay() override
{
return mGlobalDisplay;
}
class GonkDisplay final : public VsyncSource::Display
{
public:
GonkDisplay() : mVsyncEnabled(false)
{
}
~GonkDisplay()
{
DisableVsync();
}
virtual void EnableVsync() override
{
MOZ_ASSERT(NS_IsMainThread());
if (IsVsyncEnabled()) {
return;
}
mVsyncEnabled = HwcComposer2D::GetInstance()->EnableVsync(true);
}
virtual void DisableVsync() override
{
MOZ_ASSERT(NS_IsMainThread());
if (!IsVsyncEnabled()) {
return;
}
mVsyncEnabled = HwcComposer2D::GetInstance()->EnableVsync(false);
}
virtual bool IsVsyncEnabled() override
{
MOZ_ASSERT(NS_IsMainThread());
return mVsyncEnabled;
}
private:
bool mVsyncEnabled;
}; // GonkDisplay
private:
virtual ~GonkVsyncSource()
{
}
GonkDisplay mGlobalDisplay;
}; // GonkVsyncSource
#endif
already_AddRefed<mozilla::gfx::VsyncSource>
gfxAndroidPlatform::CreateHardwareVsyncSource()
{
// Only enable true hardware vsync on kit-kat due to L HwcComposer issues
// Jelly Bean has inaccurate hardware vsync so disable on JB
// Android pre-JB doesn't have hardware vsync
// Once L HwcComposer issues have been resolved, re-enable for L devices
// L is andriod version 21, Kit-kat is 19, 20 is kit-kat for wearables
#if defined(MOZ_WIDGET_GONK) && (ANDROID_VERSION == 19)
nsRefPtr<GonkVsyncSource> vsyncSource = new GonkVsyncSource();
VsyncSource::Display& display = vsyncSource->GetGlobalDisplay();
display.EnableVsync();
if (!display.IsVsyncEnabled()) {
NS_WARNING("Error enabling gonk vsync. Falling back to software vsync\n");
return gfxPlatform::CreateHardwareVsyncSource();
}
display.DisableVsync();
return vsyncSource.forget();
#else
return gfxPlatform::CreateHardwareVsyncSource();
#endif
}
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