| #ifndef _GLUCONTEXTINFO_HPP |
| #define _GLUCONTEXTINFO_HPP |
| /*------------------------------------------------------------------------- |
| * drawElements Quality Program OpenGL ES Utilities |
| * ------------------------------------------------ |
| * |
| * Copyright 2014 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. |
| * |
| *//*! |
| * \file |
| * \brief Context Info Class. |
| *//*--------------------------------------------------------------------*/ |
| |
| #include "glwFunctions.hpp" |
| #include "gluDefs.hpp" |
| |
| #include <vector> |
| #include <string> |
| #include <set> |
| |
| namespace glu |
| { |
| |
| class RenderContext; |
| |
| template <typename T, class ComputeValue> |
| class CachedValue |
| { |
| public: |
| CachedValue(ComputeValue compute = ComputeValue(), const T &defaultValue = T()) |
| : m_compute(compute) |
| , m_value(defaultValue) |
| , m_isComputed(false) |
| { |
| } |
| |
| const T &getValue(const RenderContext &context) const |
| { |
| if (!m_isComputed) |
| { |
| m_value = m_compute(context); |
| m_isComputed = true; |
| } |
| return m_value; |
| } |
| |
| private: |
| ComputeValue m_compute; |
| mutable T m_value; |
| mutable bool m_isComputed; |
| }; |
| |
| class GetCompressedTextureFormats |
| { |
| public: |
| std::set<int> operator()(const RenderContext &context) const; |
| }; |
| |
| typedef CachedValue<std::set<int>, GetCompressedTextureFormats> CompressedTextureFormats; |
| |
| bool IsES3Compatible(const glw::Functions &gl); |
| |
| /*--------------------------------------------------------------------*//*! |
| * \brief Context information & limit query. |
| *//*--------------------------------------------------------------------*/ |
| class ContextInfo |
| { |
| public: |
| virtual ~ContextInfo(void); |
| |
| virtual int getInt(int param) const; |
| virtual bool getBool(int param) const; |
| virtual const char *getString(int param) const; |
| |
| virtual bool isVertexUniformLoopSupported(void) const |
| { |
| return true; |
| } |
| virtual bool isVertexDynamicLoopSupported(void) const |
| { |
| return true; |
| } |
| virtual bool isFragmentHighPrecisionSupported(void) const |
| { |
| return true; |
| } |
| virtual bool isFragmentUniformLoopSupported(void) const |
| { |
| return true; |
| } |
| virtual bool isFragmentDynamicLoopSupported(void) const |
| { |
| return true; |
| } |
| |
| virtual bool isCompressedTextureFormatSupported(int format) const; |
| |
| const std::vector<std::string> &getExtensions(void) const |
| { |
| return m_extensions; |
| } |
| bool isExtensionSupported(const char *extName) const; |
| |
| bool isES3Compatible() const; |
| |
| static ContextInfo *create(const RenderContext &context); |
| |
| protected: |
| ContextInfo(const RenderContext &context); |
| |
| const RenderContext &m_context; |
| |
| private: |
| ContextInfo(const ContextInfo &other); |
| ContextInfo &operator=(const ContextInfo &other); |
| |
| std::vector<std::string> m_extensions; |
| CompressedTextureFormats m_compressedTextureFormats; |
| }; |
| |
| } // namespace glu |
| |
| #endif // _GLUCONTEXTINFO_HPP |