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/*
* 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 SkGLCanvas_DEFINED
#define SkGLCanvas_DEFINED
#include "SkCanvas.h"
#ifdef SK_BUILD_FOR_MAC
#include <OpenGL/gl.h>
#elif defined(ANDROID)
#include <GLES/gl.h>
#endif
class SkGLDevice;
class SkGLClipIter;
class SkGLCanvas : public SkCanvas {
public:
// notice, we do NOT allow the SkCanvas(bitmap) constructor, since that
// does not create a SkGLDevice, which we require
SkGLCanvas();
virtual ~SkGLCanvas();
// overrides from SkCanvas
virtual bool getViewport(SkIPoint*) const;
virtual bool setViewport(int width, int height);
virtual SkDevice* createDevice(SkBitmap::Config, int width, int height,
bool isOpaque, bool isForLayer);
// settings for the global texture cache
static size_t GetTextureCacheMaxCount();
static void SetTextureCacheMaxCount(size_t count);
static size_t GetTextureCacheMaxSize();
static void SetTextureCacheMaxSize(size_t size);
/** Call glDeleteTextures for all textures (including those for text)
This should be called while the gl-context is still valid. Its purpose
is to free up gl resources. Note that if a bitmap or text is drawn after
this call, new caches will be created.
*/
static void DeleteAllTextures();
/** Forget all textures without calling delete (including those for text).
This should be called if the gl-context has changed, and the texture
IDs that have been cached are no longer valid.
*/
static void AbandonAllTextures();
private:
SkIPoint fViewportSize;
// need to disallow this guy
virtual SkDevice* setBitmapDevice(const SkBitmap& bitmap) {
sk_throw();
return NULL;
}
typedef SkCanvas INHERITED;
};
#endif
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