| /* |
| * 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| IDs that have been cached are no longer valid.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 |
| |