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pjs/gfx/thebes/gfxWindowsPlatform.cpp

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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) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <stuart@mozilla.com>
* Vladimir Vukicevic <vladimir@pobox.com>
* Masayuki Nakano <masayuki@d-toybox.com>
* Masatoshi Kimura <VYV03354@nifty.ne.jp>
*
* 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 ***** */
#include "gfxWindowsPlatform.h"
#include "gfxImageSurface.h"
#include "gfxWindowsSurface.h"
#include "gfxTextRunWordCache.h"
#include "nsUnicharUtils.h"
#include "mozilla/Preferences.h"
#include "nsServiceManagerUtils.h"
#include "nsTArray.h"
#include "nsIWindowsRegKey.h"
#include "nsILocalFile.h"
#include "plbase64.h"
#include "nsIXULRuntime.h"
#include "nsIGfxInfo.h"
#include "gfxCrashReporterUtils.h"
#include "gfxGDIFontList.h"
#include "gfxGDIFont.h"
#ifdef CAIRO_HAS_DWRITE_FONT
#include "gfxDWriteFontList.h"
#include "gfxDWriteFonts.h"
#include "gfxDWriteCommon.h"
#include <dwrite.h>
#endif
#include "gfxUserFontSet.h"
#include <string>
#ifdef CAIRO_HAS_D2D_SURFACE
#include "gfxD2DSurface.h"
#include <d3d10_1.h>
#include "nsIMemoryReporter.h"
#include "nsMemory.h"
#endif
using namespace mozilla;
#ifdef CAIRO_HAS_D2D_SURFACE
class D2DCacheReporter :
public nsIMemoryReporter
{
public:
D2DCacheReporter()
{ }
NS_DECL_ISUPPORTS
NS_IMETHOD GetProcess(char **process) {
*process = strdup("");
return NS_OK;
}
NS_IMETHOD GetPath(char **memoryPath) {
*memoryPath = strdup("gfx-d2d-surfacecache");
return NS_OK;
}
NS_IMETHOD GetKind(PRInt32 *kind) {
*kind = MR_OTHER;
return NS_OK;
}
NS_IMETHOD GetDescription(char **desc) {
*desc = strdup("Memory used by the Direct2D internal surface cache.");
return NS_OK;
}
NS_IMETHOD GetMemoryUsed(PRInt64 *memoryUsed) {
*memoryUsed = cairo_d2d_get_image_surface_cache_usage();
return NS_OK;
}
};
NS_IMPL_ISUPPORTS1(D2DCacheReporter, nsIMemoryReporter)
class D2DVRAMReporter :
public nsIMemoryReporter
{
public:
D2DVRAMReporter()
{ }
NS_DECL_ISUPPORTS
NS_IMETHOD GetProcess(char **process) {
*process = strdup("");
return NS_OK;
}
NS_IMETHOD GetPath(char **memoryPath) {
*memoryPath = strdup("gfx-d2d-surfacevram");
return NS_OK;
}
NS_IMETHOD GetKind(PRInt32 *kind) {
*kind = MR_OTHER;
return NS_OK;
}
NS_IMETHOD GetDescription(char **desc) {
*desc = strdup("Video memory used by D2D surfaces");
return NS_OK;
}
NS_IMETHOD GetMemoryUsed(PRInt64 *memoryUsed) {
cairo_device_t *device =
gfxWindowsPlatform::GetPlatform()->GetD2DDevice();
if (device) {
*memoryUsed = cairo_d2d_get_surface_vram_usage(device);
} else {
*memoryUsed = 0;
}
return NS_OK;
}
};
NS_IMPL_ISUPPORTS1(D2DVRAMReporter, nsIMemoryReporter)
#endif
#define GFX_USE_CLEARTYPE_ALWAYS "gfx.font_rendering.cleartype.always_use_for_content"
#define GFX_DOWNLOADABLE_FONTS_USE_CLEARTYPE "gfx.font_rendering.cleartype.use_for_downloadable_fonts"
#define GFX_CLEARTYPE_PARAMS "gfx.font_rendering.cleartype_params."
#define GFX_CLEARTYPE_PARAMS_GAMMA "gfx.font_rendering.cleartype_params.gamma"
#define GFX_CLEARTYPE_PARAMS_CONTRAST "gfx.font_rendering.cleartype_params.enhanced_contrast"
#define GFX_CLEARTYPE_PARAMS_LEVEL "gfx.font_rendering.cleartype_params.cleartype_level"
#define GFX_CLEARTYPE_PARAMS_STRUCTURE "gfx.font_rendering.cleartype_params.pixel_structure"
#define GFX_CLEARTYPE_PARAMS_MODE "gfx.font_rendering.cleartype_params.rendering_mode"
#ifdef CAIRO_HAS_DWRITE_FONT
// DirectWrite is not available on all platforms, we need to use the function
// pointer.
typedef HRESULT (WINAPI*DWriteCreateFactoryFunc)(
__in DWRITE_FACTORY_TYPE factoryType,
__in REFIID iid,
__out IUnknown **factory
);
#endif
#ifdef CAIRO_HAS_D2D_SURFACE
typedef HRESULT (WINAPI*D3D10CreateDevice1Func)(
IDXGIAdapter *pAdapter,
D3D10_DRIVER_TYPE DriverType,
HMODULE Software,
UINT Flags,
D3D10_FEATURE_LEVEL1 HardwareLevel,
UINT SDKVersion,
ID3D10Device1 **ppDevice
);
#endif
static __inline void
BuildKeyNameFromFontName(nsAString &aName)
{
if (aName.Length() >= LF_FACESIZE)
aName.Truncate(LF_FACESIZE - 1);
ToLowerCase(aName);
}
gfxWindowsPlatform::gfxWindowsPlatform()
{
mPrefFonts.Init(50);
mUseClearTypeForDownloadableFonts = UNINITIALIZED_VALUE;
mUseClearTypeAlways = UNINITIALIZED_VALUE;
mUsingGDIFonts = PR_FALSE;
/*
* Initialize COM
*/
CoInitialize(NULL);
mScreenDC = GetDC(NULL);
#ifdef CAIRO_HAS_D2D_SURFACE
NS_RegisterMemoryReporter(new D2DCacheReporter());
NS_RegisterMemoryReporter(new D2DVRAMReporter());
mD2DDevice = nsnull;
#endif
UpdateRenderMode();
}
gfxWindowsPlatform::~gfxWindowsPlatform()
{
::ReleaseDC(NULL, mScreenDC);
// not calling FT_Done_FreeType because cairo may still hold references to
// these FT_Faces. See bug 458169.
#ifdef CAIRO_HAS_D2D_SURFACE
if (mD2DDevice) {
cairo_release_device(mD2DDevice);
}
#endif
/*
* Uninitialize COM
*/
CoUninitialize();
}
void
gfxWindowsPlatform::UpdateRenderMode()
{
/* Pick the default render mode for
* desktop.
*/
mRenderMode = RENDER_GDI;
OSVERSIONINFOA versionInfo;
versionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
::GetVersionExA(&versionInfo);
bool isVistaOrHigher = versionInfo.dwMajorVersion >= 6;
PRBool safeMode = PR_FALSE;
nsCOMPtr<nsIXULRuntime> xr = do_GetService("@mozilla.org/xre/runtime;1");
if (xr)
xr->GetInSafeMode(&safeMode);
mUseDirectWrite = Preferences::GetBool("gfx.font_rendering.directwrite.enabled", PR_FALSE);
#ifdef CAIRO_HAS_D2D_SURFACE
PRBool d2dDisabled = PR_FALSE;
PRBool d2dForceEnabled = PR_FALSE;
PRBool d2dBlocked = PR_FALSE;
nsCOMPtr<nsIGfxInfo> gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
if (gfxInfo) {
PRInt32 status;
if (NS_SUCCEEDED(gfxInfo->GetFeatureStatus(nsIGfxInfo::FEATURE_DIRECT2D, &status))) {
if (status != nsIGfxInfo::FEATURE_NO_INFO) {
d2dDisabled = PR_TRUE;
if (status == nsIGfxInfo::FEATURE_BLOCKED_DRIVER_VERSION ||
status == nsIGfxInfo::FEATURE_BLOCKED_DEVICE)
{
d2dBlocked = PR_TRUE;
}
}
}
}
d2dDisabled = Preferences::GetBool("gfx.direct2d.disabled", PR_FALSE);
d2dForceEnabled = Preferences::GetBool("gfx.direct2d.force-enabled", PR_FALSE);
bool tryD2D = !d2dBlocked || d2dForceEnabled;
// Do not ever try if d2d is explicitly disabled,
// or if we're not using DWrite fonts.
if (d2dDisabled || mUsingGDIFonts) {
tryD2D = false;
}
if (isVistaOrHigher && !safeMode && tryD2D) {
VerifyD2DDevice(d2dForceEnabled);
if (mD2DDevice) {
mRenderMode = RENDER_DIRECT2D;
mUseDirectWrite = PR_TRUE;
}
} else {
mD2DDevice = nsnull;
}
#endif
#ifdef CAIRO_HAS_DWRITE_FONT
// Enable when it's preffed on -and- we're using Vista or higher. Or when
// we're going to use D2D.
if (!mDWriteFactory && (mUseDirectWrite && isVistaOrHigher)) {
mozilla::ScopedGfxFeatureReporter reporter("DWrite");
DWriteCreateFactoryFunc createDWriteFactory = (DWriteCreateFactoryFunc)
GetProcAddress(LoadLibraryW(L"dwrite.dll"), "DWriteCreateFactory");
if (createDWriteFactory) {
/**
* I need a direct pointer to be able to cast to IUnknown**, I also
* need to remember to release this because the nsRefPtr will
* AddRef it.
*/
IDWriteFactory *factory;
HRESULT hr = createDWriteFactory(
DWRITE_FACTORY_TYPE_SHARED,
__uuidof(IDWriteFactory),
reinterpret_cast<IUnknown**>(&factory));
mDWriteFactory = factory;
factory->Release();
SetupClearTypeParams();
if (hr == S_OK)
reporter.SetSuccessful();
}
}
#endif
}
void
gfxWindowsPlatform::VerifyD2DDevice(PRBool aAttemptForce)
{
#ifdef CAIRO_HAS_D2D_SURFACE
if (mD2DDevice) {
ID3D10Device1 *device = cairo_d2d_device_get_device(mD2DDevice);
if (SUCCEEDED(device->GetDeviceRemovedReason())) {
return;
}
mD2DDevice = nsnull;
}
mozilla::ScopedGfxFeatureReporter reporter("D2D");
HMODULE d3d10module = LoadLibraryA("d3d10_1.dll");
D3D10CreateDevice1Func createD3DDevice = (D3D10CreateDevice1Func)
GetProcAddress(d3d10module, "D3D10CreateDevice1");
nsRefPtr<ID3D10Device1> device;
if (createD3DDevice) {
// We try 10.0 first even though we prefer 10.1, since we want to
// fail as fast as possible if 10.x isn't supported.
HRESULT hr = createD3DDevice(
NULL,
D3D10_DRIVER_TYPE_HARDWARE,
NULL,
D3D10_CREATE_DEVICE_BGRA_SUPPORT |
D3D10_CREATE_DEVICE_PREVENT_INTERNAL_THREADING_OPTIMIZATIONS,
D3D10_FEATURE_LEVEL_10_0,
D3D10_1_SDK_VERSION,
getter_AddRefs(device));
if (SUCCEEDED(hr)) {
// We have 10.0, let's try 10.1.
// XXX - This adds an additional 10-20ms for people who are
// getting direct2d. We'd really like to do something more
// clever.
nsRefPtr<ID3D10Device1> device1;
hr = createD3DDevice(
NULL,
D3D10_DRIVER_TYPE_HARDWARE,
NULL,
D3D10_CREATE_DEVICE_BGRA_SUPPORT |
D3D10_CREATE_DEVICE_PREVENT_INTERNAL_THREADING_OPTIMIZATIONS,
D3D10_FEATURE_LEVEL_10_1,
D3D10_1_SDK_VERSION,
getter_AddRefs(device1));
if (SUCCEEDED(hr)) {
device = device1;
}
mD2DDevice = cairo_d2d_create_device_from_d3d10device(device);
}
}
if (!mD2DDevice && aAttemptForce) {
mD2DDevice = cairo_d2d_create_device();
}
if (mD2DDevice)
reporter.SetSuccessful();
#endif
}
// bug 630201 - older pre-RTM versions of Direct2D/DirectWrite cause odd
// crashers so blacklist them altogether
#ifdef CAIRO_HAS_DWRITE_FONT
#define WINDOWS7_RTM_BUILD 7600
static PRBool
AllowDirectWrite()
{
PRInt32 winVers, buildNum;
winVers = gfxWindowsPlatform::WindowsOSVersion(&buildNum);
if (winVers == gfxWindowsPlatform::kWindows7 &&
buildNum < WINDOWS7_RTM_BUILD)
{
// don't use Direct2D/DirectWrite on older versions of Windows 7
return PR_FALSE;
}
return PR_TRUE;
}
#endif
gfxPlatformFontList*
gfxWindowsPlatform::CreatePlatformFontList()
{
mUsingGDIFonts = PR_FALSE;
gfxPlatformFontList *pfl;
#ifdef CAIRO_HAS_DWRITE_FONT
if (AllowDirectWrite() && GetDWriteFactory()) {
pfl = new gfxDWriteFontList();
if (NS_SUCCEEDED(pfl->InitFontList())) {
return pfl;
}
// DWrite font initialization failed! Don't know why this would happen,
// but apparently it can - see bug 594865.
// So we're going to fall back to GDI fonts & rendering.
gfxPlatformFontList::Shutdown();
SetRenderMode(RENDER_GDI);
}
#endif
pfl = new gfxGDIFontList();
mUsingGDIFonts = PR_TRUE;
if (NS_SUCCEEDED(pfl->InitFontList())) {
return pfl;
}
gfxPlatformFontList::Shutdown();
return nsnull;
}
already_AddRefed<gfxASurface>
gfxWindowsPlatform::CreateOffscreenSurface(const gfxIntSize& size,
gfxASurface::gfxContentType contentType)
{
gfxASurface *surf = nsnull;
#ifdef CAIRO_HAS_WIN32_SURFACE
if (mRenderMode == RENDER_GDI)
surf = new gfxWindowsSurface(size, gfxASurface::FormatFromContent(contentType));
#endif
#ifdef CAIRO_HAS_D2D_SURFACE
if (mRenderMode == RENDER_DIRECT2D)
surf = new gfxD2DSurface(size, gfxASurface::FormatFromContent(contentType));
#endif
if (surf == nsnull)
surf = new gfxImageSurface(size, gfxASurface::FormatFromContent(contentType));
NS_IF_ADDREF(surf);
return surf;
}
nsresult
gfxWindowsPlatform::GetFontList(nsIAtom *aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts)
{
gfxPlatformFontList::PlatformFontList()->GetFontList(aLangGroup, aGenericFamily, aListOfFonts);
return NS_OK;
}
static void
RemoveCharsetFromFontSubstitute(nsAString &aName)
{
PRInt32 comma = aName.FindChar(PRUnichar(','));
if (comma >= 0)
aName.Truncate(comma);
}
nsresult
gfxWindowsPlatform::UpdateFontList()
{
gfxPlatformFontList::PlatformFontList()->UpdateFontList();
return NS_OK;
}
struct ResolveData {
ResolveData(gfxPlatform::FontResolverCallback aCallback,
gfxWindowsPlatform *aCaller, const nsAString *aFontName,
void *aClosure) :
mFoundCount(0), mCallback(aCallback), mCaller(aCaller),
mFontName(aFontName), mClosure(aClosure) {}
PRUint32 mFoundCount;
gfxPlatform::FontResolverCallback mCallback;
gfxWindowsPlatform *mCaller;
const nsAString *mFontName;
void *mClosure;
};
nsresult
gfxWindowsPlatform::ResolveFontName(const nsAString& aFontName,
FontResolverCallback aCallback,
void *aClosure,
PRBool& aAborted)
{
nsAutoString resolvedName;
if (!gfxPlatformFontList::PlatformFontList()->
ResolveFontName(aFontName, resolvedName)) {
aAborted = PR_FALSE;
return NS_OK;
}
aAborted = !(*aCallback)(resolvedName, aClosure);
return NS_OK;
}
nsresult
gfxWindowsPlatform::GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName)
{
gfxPlatformFontList::PlatformFontList()->GetStandardFamilyName(aFontName, aFamilyName);
return NS_OK;
}
gfxFontGroup *
gfxWindowsPlatform::CreateFontGroup(const nsAString &aFamilies,
const gfxFontStyle *aStyle,
gfxUserFontSet *aUserFontSet)
{
return new gfxFontGroup(aFamilies, aStyle, aUserFontSet);
}
gfxFontEntry*
gfxWindowsPlatform::LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
const nsAString& aFontName)
{
return gfxPlatformFontList::PlatformFontList()->LookupLocalFont(aProxyEntry,
aFontName);
}
gfxFontEntry*
gfxWindowsPlatform::MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
const PRUint8 *aFontData, PRUint32 aLength)
{
return gfxPlatformFontList::PlatformFontList()->MakePlatformFont(aProxyEntry,
aFontData,
aLength);
}
PRBool
gfxWindowsPlatform::IsFontFormatSupported(nsIURI *aFontURI, PRUint32 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_FORMAT_WOFF |
gfxUserFontSet::FLAG_FORMAT_OPENTYPE |
gfxUserFontSet::FLAG_FORMAT_TRUETYPE)) {
return PR_TRUE;
}
// reject all other formats, known and unknown
if (aFormatFlags != 0) {
return PR_FALSE;
}
// no format hint set, need to look at data
return PR_TRUE;
}
gfxFontFamily *
gfxWindowsPlatform::FindFontFamily(const nsAString& aName)
{
return gfxPlatformFontList::PlatformFontList()->FindFamily(aName);
}
gfxFontEntry *
gfxWindowsPlatform::FindFontEntry(const nsAString& aName, const gfxFontStyle& aFontStyle)
{
nsRefPtr<gfxFontFamily> ff = FindFontFamily(aName);
if (!ff)
return nsnull;
PRBool aNeedsBold;
return ff->FindFontForStyle(aFontStyle, aNeedsBold);
}
qcms_profile*
gfxWindowsPlatform::GetPlatformCMSOutputProfile()
{
WCHAR str[MAX_PATH];
DWORD size = MAX_PATH;
BOOL res;
HDC dc = GetDC(nsnull);
if (!dc)
return nsnull;
#if _MSC_VER
__try {
res = GetICMProfileW(dc, &size, (LPWSTR)&str);
} __except(GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) {
res = FALSE;
}
#else
res = GetICMProfileW(dc, &size, (LPWSTR)&str);
#endif
ReleaseDC(nsnull, dc);
if (!res)
return nsnull;
qcms_profile* profile = qcms_profile_from_unicode_path(str);
#ifdef DEBUG_tor
if (profile)
fprintf(stderr,
"ICM profile read from %s successfully\n",
NS_ConvertUTF16toUTF8(str).get());
#endif
return profile;
}
PRBool
gfxWindowsPlatform::GetPrefFontEntries(const nsCString& aKey, nsTArray<nsRefPtr<gfxFontEntry> > *array)
{
return mPrefFonts.Get(aKey, array);
}
void
gfxWindowsPlatform::SetPrefFontEntries(const nsCString& aKey, nsTArray<nsRefPtr<gfxFontEntry> >& array)
{
mPrefFonts.Put(aKey, array);
}
PRBool
gfxWindowsPlatform::UseClearTypeForDownloadableFonts()
{
if (mUseClearTypeForDownloadableFonts == UNINITIALIZED_VALUE) {
mUseClearTypeForDownloadableFonts = Preferences::GetBool(GFX_DOWNLOADABLE_FONTS_USE_CLEARTYPE, PR_TRUE);
}
return mUseClearTypeForDownloadableFonts;
}
PRBool
gfxWindowsPlatform::UseClearTypeAlways()
{
if (mUseClearTypeAlways == UNINITIALIZED_VALUE) {
mUseClearTypeAlways = Preferences::GetBool(GFX_USE_CLEARTYPE_ALWAYS, PR_FALSE);
}
return mUseClearTypeAlways;
}
PRInt32
gfxWindowsPlatform::WindowsOSVersion(PRInt32 *aBuildNum)
{
static PRInt32 winVersion = UNINITIALIZED_VALUE;
static PRInt32 buildNum = UNINITIALIZED_VALUE;
OSVERSIONINFO vinfo;
if (winVersion == UNINITIALIZED_VALUE) {
vinfo.dwOSVersionInfoSize = sizeof (vinfo);
if (!GetVersionEx(&vinfo)) {
winVersion = kWindowsUnknown;
buildNum = 0;
} else {
winVersion = PRInt32(vinfo.dwMajorVersion << 16) + vinfo.dwMinorVersion;
buildNum = PRInt32(vinfo.dwBuildNumber);
}
}
if (aBuildNum) {
*aBuildNum = buildNum;
}
return winVersion;
}
void
gfxWindowsPlatform::GetDLLVersion(const PRUnichar *aDLLPath, nsAString& aVersion)
{
DWORD versInfoSize, vers[4] = {0};
// version info not available case
aVersion.Assign(NS_LITERAL_STRING("0.0.0.0"));
versInfoSize = GetFileVersionInfoSizeW(aDLLPath, NULL);
nsAutoTArray<BYTE,512> versionInfo;
if (versInfoSize == 0 ||
!versionInfo.AppendElements(PRUint32(versInfoSize)))
{
return;
}
if (!GetFileVersionInfoW(aDLLPath, 0, versInfoSize,
LPBYTE(versionInfo.Elements())))
{
return;
}
UINT len = 0;
VS_FIXEDFILEINFO *fileInfo = nsnull;
if (!VerQueryValue(LPBYTE(versionInfo.Elements()), TEXT("\\"),
(LPVOID *)&fileInfo, &len) ||
len == 0 ||
fileInfo == nsnull)
{
return;
}
DWORD fileVersMS = fileInfo->dwFileVersionMS;
DWORD fileVersLS = fileInfo->dwFileVersionLS;
vers[0] = HIWORD(fileVersMS);
vers[1] = LOWORD(fileVersMS);
vers[2] = HIWORD(fileVersLS);
vers[3] = LOWORD(fileVersLS);
char buf[256];
sprintf(buf, "%d.%d.%d.%d", vers[0], vers[1], vers[2], vers[3]);
aVersion.Assign(NS_ConvertUTF8toUTF16(buf));
}
void
gfxWindowsPlatform::GetCleartypeParams(nsTArray<ClearTypeParameterInfo>& aParams)
{
HKEY hKey, subKey;
DWORD i, rv, size, type;
WCHAR displayName[256], subkeyName[256];
aParams.Clear();
// construct subkeys based on HKLM subkeys, assume they are same for HKCU
rv = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
L"Software\\Microsoft\\Avalon.Graphics",
0, KEY_READ, &hKey);
if (rv != ERROR_SUCCESS) {
return;
}
// enumerate over subkeys
for (i = 0, rv = ERROR_SUCCESS; rv != ERROR_NO_MORE_ITEMS; i++) {
size = NS_ARRAY_LENGTH(displayName);
rv = RegEnumKeyExW(hKey, i, displayName, &size, NULL, NULL, NULL, NULL);
if (rv != ERROR_SUCCESS) {
continue;
}
ClearTypeParameterInfo ctinfo;
ctinfo.displayName.Assign(displayName);
DWORD subrv, value;
bool foundData = false;
swprintf_s(subkeyName, NS_ARRAY_LENGTH(subkeyName),
L"Software\\Microsoft\\Avalon.Graphics\\%s", displayName);
// subkey for gamma, pixel structure
subrv = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
subkeyName, 0, KEY_QUERY_VALUE, &subKey);
if (subrv == ERROR_SUCCESS) {
size = sizeof(value);
subrv = RegQueryValueExW(subKey, L"GammaLevel", NULL, &type,
(LPBYTE)&value, &size);
if (subrv == ERROR_SUCCESS && type == REG_DWORD) {
foundData = true;
ctinfo.gamma = value;
}
size = sizeof(value);
subrv = RegQueryValueExW(subKey, L"PixelStructure", NULL, &type,
(LPBYTE)&value, &size);
if (subrv == ERROR_SUCCESS && type == REG_DWORD) {
foundData = true;
ctinfo.pixelStructure = value;
}
RegCloseKey(subKey);
}
// subkey for cleartype level, enhanced contrast
subrv = RegOpenKeyExW(HKEY_CURRENT_USER,
subkeyName, 0, KEY_QUERY_VALUE, &subKey);
if (subrv == ERROR_SUCCESS) {
size = sizeof(value);
subrv = RegQueryValueExW(subKey, L"ClearTypeLevel", NULL, &type,
(LPBYTE)&value, &size);
if (subrv == ERROR_SUCCESS && type == REG_DWORD) {
foundData = true;
ctinfo.clearTypeLevel = value;
}
size = sizeof(value);
subrv = RegQueryValueExW(subKey, L"EnhancedContrastLevel",
NULL, &type, (LPBYTE)&value, &size);
if (subrv == ERROR_SUCCESS && type == REG_DWORD) {
foundData = true;
ctinfo.enhancedContrast = value;
}
RegCloseKey(subKey);
}
if (foundData) {
aParams.AppendElement(ctinfo);
}
}
RegCloseKey(hKey);
}
void
gfxWindowsPlatform::FontsPrefsChanged(const char *aPref)
{
PRBool clearTextFontCaches = PR_TRUE;
gfxPlatform::FontsPrefsChanged(aPref);
if (!aPref) {
mUseClearTypeForDownloadableFonts = UNINITIALIZED_VALUE;
mUseClearTypeAlways = UNINITIALIZED_VALUE;
} else if (!strcmp(GFX_DOWNLOADABLE_FONTS_USE_CLEARTYPE, aPref)) {
mUseClearTypeForDownloadableFonts = UNINITIALIZED_VALUE;
} else if (!strcmp(GFX_USE_CLEARTYPE_ALWAYS, aPref)) {
mUseClearTypeAlways = UNINITIALIZED_VALUE;
} else if (!strncmp(GFX_CLEARTYPE_PARAMS, aPref, strlen(GFX_CLEARTYPE_PARAMS))) {
SetupClearTypeParams();
} else {
clearTextFontCaches = PR_FALSE;
}
if (clearTextFontCaches) {
gfxFontCache *fc = gfxFontCache::GetCache();
if (fc) {
fc->Flush();
}
gfxTextRunWordCache::Flush();
}
}
void
gfxWindowsPlatform::SetupClearTypeParams()
{
#if CAIRO_HAS_DWRITE_FONT
if (GetDWriteFactory()) {
// any missing prefs will default to invalid (-1) and be ignored;
// out-of-range values will also be ignored
FLOAT gamma = -1.0;
FLOAT contrast = -1.0;
FLOAT level = -1.0;
int geometry = -1;
int mode = -1;
PRInt32 value;
if (NS_SUCCEEDED(Preferences::GetInt(GFX_CLEARTYPE_PARAMS_GAMMA, &value))) {
if (value >= 1000 && value <= 2200) {
gamma = FLOAT(value / 1000.0);
}
}
if (NS_SUCCEEDED(Preferences::GetInt(GFX_CLEARTYPE_PARAMS_CONTRAST, &value))) {
if (value >= 0 && value <= 1000) {
contrast = FLOAT(value / 100.0);
}
}
if (NS_SUCCEEDED(Preferences::GetInt(GFX_CLEARTYPE_PARAMS_LEVEL, &value))) {
if (value >= 0 && value <= 100) {
level = FLOAT(value / 100.0);
}
}
if (NS_SUCCEEDED(Preferences::GetInt(GFX_CLEARTYPE_PARAMS_STRUCTURE, &value))) {
if (value >= 0 && value <= 2) {
geometry = value;
}
}
if (NS_SUCCEEDED(Preferences::GetInt(GFX_CLEARTYPE_PARAMS_MODE, &value))) {
if (value >= 0 && value <= 5) {
mode = value;
}
}
cairo_dwrite_set_cleartype_params(gamma, contrast, level, geometry, mode);
switch (mode) {
case DWRITE_RENDERING_MODE_ALIASED:
case DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC:
mMeasuringMode = DWRITE_MEASURING_MODE_GDI_CLASSIC;
break;
case DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL:
mMeasuringMode = DWRITE_MEASURING_MODE_GDI_NATURAL;
break;
default:
mMeasuringMode = DWRITE_MEASURING_MODE_NATURAL;
break;
}
}
#endif
}
bool
gfxWindowsPlatform::IsOptimus()
{
return GetModuleHandleA("nvumdshim.dll");
}
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