81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/*
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* Copyright (C) 2006 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SkGLCanvas_DEFINED
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#define SkGLCanvas_DEFINED
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#include "SkCanvas.h"
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#ifdef SK_BUILD_FOR_MAC
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#include <OpenGL/gl.h>
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#elif defined(ANDROID)
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#include <GLES/gl.h>
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#endif
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class SkGLDevice;
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class SkGLClipIter;
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class SkGLCanvas : public SkCanvas {
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public:
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// notice, we do NOT allow the SkCanvas(bitmap) constructor, since that
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// does not create a SkGLDevice, which we require
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SkGLCanvas();
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virtual ~SkGLCanvas();
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// overrides from SkCanvas
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virtual bool getViewport(SkIPoint*) const;
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virtual bool setViewport(int width, int height);
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virtual SkDevice* createDevice(SkBitmap::Config, int width, int height,
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bool isOpaque, bool isForLayer);
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// settings for the global texture cache
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static size_t GetTextureCacheMaxCount();
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static void SetTextureCacheMaxCount(size_t count);
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static size_t GetTextureCacheMaxSize();
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static void SetTextureCacheMaxSize(size_t size);
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/** Call glDeleteTextures for all textures (including those for text)
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This should be called while the gl-context is still valid. Its purpose
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is to free up gl resources. Note that if a bitmap or text is drawn after
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this call, new caches will be created.
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*/
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static void DeleteAllTextures();
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/** Forget all textures without calling delete (including those for text).
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This should be called if the gl-context has changed, and the texture
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IDs that have been cached are no longer valid.
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*/
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static void AbandonAllTextures();
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private:
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SkIPoint fViewportSize;
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// need to disallow this guy
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virtual SkDevice* setBitmapDevice(const SkBitmap& bitmap) {
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sk_throw();
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return NULL;
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}
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typedef SkCanvas INHERITED;
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};
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#endif
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