7f4307668b
This class can be used to perform occlusion queries. An occlusion query can be used to test whether an object is entirely hidden or not. Change-Id: Ida456df81dbe008a64d3ff4cb7879340785c6abf
86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
/*
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* Copyright (C) 2010 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 ANDROID_HWUI_EXTENSIONS_H
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#define ANDROID_HWUI_EXTENSIONS_H
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#include <cutils/compiler.h>
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#include <utils/Singleton.h>
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#include <utils/SortedVector.h>
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#include <utils/String8.h>
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namespace android {
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Classes
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///////////////////////////////////////////////////////////////////////////////
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class ANDROID_API Extensions: public Singleton<Extensions> {
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public:
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inline bool hasNPot() const { return mHasNPot; }
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inline bool hasFramebufferFetch() const { return mHasFramebufferFetch; }
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inline bool hasDiscardFramebuffer() const { return mHasDiscardFramebuffer; }
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inline bool hasDebugMarker() const { return mHasDebugMarker; }
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inline bool hasDebugLabel() const { return mHasDebugLabel; }
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inline bool hasTiledRendering() const { return mHasTiledRendering; }
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inline bool has1BitStencil() const { return mHas1BitStencil; }
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inline bool has4BitStencil() const { return mHas4BitStencil; }
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inline bool hasNvSystemTime() const { return mHasNvSystemTime; }
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inline bool hasPixelBufferObjects() const { return mVersionMajor >= 3; }
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inline bool hasOcclusionQueries() const { return mVersionMajor >= 3; }
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inline bool hasFloatTextures() const { return mVersionMajor >= 3; }
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inline int getMajorGlVersion() const { return mVersionMajor; }
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inline int getMinorGlVersion() const { return mVersionMinor; }
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bool hasGlExtension(const char* extension) const;
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bool hasEglExtension(const char* extension) const;
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void dump() const;
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private:
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Extensions();
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~Extensions();
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void findExtensions(const char* extensions, SortedVector<String8>& list) const;
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friend class Singleton<Extensions>;
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SortedVector<String8> mGlExtensionList;
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SortedVector<String8> mEglExtensionList;
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bool mHasNPot;
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bool mHasFramebufferFetch;
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bool mHasDiscardFramebuffer;
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bool mHasDebugMarker;
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bool mHasDebugLabel;
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bool mHasTiledRendering;
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bool mHas1BitStencil;
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bool mHas4BitStencil;
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bool mHasNvSystemTime;
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int mVersionMajor;
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int mVersionMinor;
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}; // class Extensions
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_HWUI_EXTENSIONS_H
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