AuroraMiddleware/skia2
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add runtime config option to retain stream for custom typefaces

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BUG=skia:

Review URL: https://codereview.chromium.org/729973004
This commit is contained in:
humper 2014-11-19 08:32:19 -08:00 committed by Commit bot
parent 02bcd9db00
commit ad5e9a5327
1 changed files with 15 additions and 1 deletions
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16
src/ports/SkFontHost_linux.cpp
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@ -12,6 +12,7 @@
#include "SkDescriptor.h"
#include "SkOSFile.h"
#include "SkPaint.h"
#include "SkRTConf.h"
#include "SkString.h"
#include "SkStream.h"
#include "SkThread.h"
@ -101,6 +102,13 @@ private:
typedef SkTypeface_Custom INHERITED;
};
// This configuration option is useful if we need to open and hold handles to
// all found system font data (e.g., for skfiddle, where the application can't
// access the filesystem to read fonts on demand)
SK_CONF_DECLARE(bool, c_CustomTypefaceRetain, "fonts.customFont.retainAllData", false,
"Retain the open stream for each found font on the system.");
/** The file SkTypeface implementation for the custom font manager. */
class SkTypeface_File : public SkTypeface_Custom {
public:
@ -108,6 +116,7 @@ public:
const SkString familyName, const char path[], int index)
: INHERITED(style, isFixedPitch, sysFont, familyName, index)
, fPath(path)
, fStream(c_CustomTypefaceRetain ? SkStream::NewFromFile(fPath.c_str()) : NULL)
{ }
virtual const char* getUniqueString() const SK_OVERRIDE {
@ -121,11 +130,16 @@ public:
protected:
virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE {
*ttcIndex = this->getIndex();
return SkStream::NewFromFile(fPath.c_str());
if (fStream.get()) {
return fStream->duplicate();
} else {
return SkStream::NewFromFile(fPath.c_str());
}
}
private:
SkString fPath;
const SkAutoTUnref<SkStreamAsset> fStream;
typedef SkTypeface_Custom INHERITED;
};