axmol/cocos2dx/platform/third_party/qnx/grskia/SkGraphics.h

62 lines
1.8 KiB
C++

/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SkGraphics_DEFINED
#define SkGraphics_DEFINED
#include "SkTypes.h"
class SkGraphics {
public:
static void Init();
static void Term();
/** Return the (approximate) number of bytes used by the font cache.
*/
static size_t GetFontCacheUsed();
/** Attempt to purge the font cache until <= the specified amount remains
in the cache. Specifying 0 will attempt to purge the entire cache.
Returns true if some amount was purged from the font cache.
*/
static bool SetFontCacheUsed(size_t usageInBytes);
/** Return the version numbers for the library. If the parameter is not
null, it is set to the version number.
*/
static void GetVersion(int32_t* major, int32_t* minor, int32_t* patch);
private:
/** This is automatically called by SkGraphics::Init(), and must be
implemented by the host OS. This allows the host OS to register a callback
with the C++ runtime to call SkGraphics::FreeCaches()
*/
static void InstallNewHandler();
};
class SkAutoGraphics {
public:
SkAutoGraphics() {
SkGraphics::Init();
}
~SkAutoGraphics() {
SkGraphics::Term();
}
};
#endif