1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdlib.h> 18#include <stdio.h> 19#include <stdint.h> 20 21#include "GLExtensions.h" 22 23namespace android { 24// --------------------------------------------------------------------------- 25 26ANDROID_SINGLETON_STATIC_INSTANCE( GLExtensions ) 27 28GLExtensions::GLExtensions() 29 : mHaveFramebufferObject(false) 30{ 31} 32 33void GLExtensions::initWithGLStrings( 34 GLubyte const* vendor, 35 GLubyte const* renderer, 36 GLubyte const* version, 37 GLubyte const* extensions) 38{ 39 mVendor = (char const*)vendor; 40 mRenderer = (char const*)renderer; 41 mVersion = (char const*)version; 42 mExtensions = (char const*)extensions; 43 44 char const* curr = (char const*)extensions; 45 char const* head = curr; 46 do { 47 head = strchr(curr, ' '); 48 String8 s(curr, head ? head-curr : strlen(curr)); 49 if (s.length()) { 50 mExtensionList.add(s); 51 } 52 curr = head+1; 53 } while (head); 54 55 if (hasExtension("GL_OES_framebuffer_object")) { 56 mHaveFramebufferObject = true; 57 } 58} 59 60bool GLExtensions::hasExtension(char const* extension) const 61{ 62 const String8 s(extension); 63 return mExtensionList.indexOf(s) >= 0; 64} 65 66char const* GLExtensions::getVendor() const { 67 return mVendor.string(); 68} 69 70char const* GLExtensions::getRenderer() const { 71 return mRenderer.string(); 72} 73 74char const* GLExtensions::getVersion() const { 75 return mVersion.string(); 76} 77 78char const* GLExtensions::getExtension() const { 79 return mExtensions.string(); 80} 81 82// --------------------------------------------------------------------------- 83}; // namespace android 84