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 : mHaveTextureExternal(false), 30 mHaveNpot(false), 31 mHaveDirectTexture(false) 32{ 33} 34 35void GLExtensions::initWithGLStrings( 36 GLubyte const* vendor, 37 GLubyte const* renderer, 38 GLubyte const* version, 39 GLubyte const* extensions, 40 char const* egl_vendor, 41 char const* egl_version, 42 char const* egl_extensions) 43{ 44 mVendor = (char const*)vendor; 45 mRenderer = (char const*)renderer; 46 mVersion = (char const*)version; 47 mExtensions = (char const*)extensions; 48 mEglVendor = egl_vendor; 49 mEglVersion = egl_version; 50 mEglExtensions = egl_extensions; 51 52 char const* curr = (char const*)extensions; 53 char const* head = curr; 54 do { 55 head = strchr(curr, ' '); 56 String8 s(curr, head ? head-curr : strlen(curr)); 57 if (s.length()) { 58 mExtensionList.add(s); 59 } 60 curr = head+1; 61 } while (head); 62 63 curr = egl_extensions; 64 head = curr; 65 do { 66 head = strchr(curr, ' '); 67 String8 s(curr, head ? head-curr : strlen(curr)); 68 if (s.length()) { 69 mExtensionList.add(s); 70 } 71 curr = head+1; 72 } while (head); 73 74#ifdef EGL_ANDROID_image_native_buffer 75 if (hasExtension("GL_OES_EGL_image") && 76 (hasExtension("EGL_KHR_image_base") || hasExtension("EGL_KHR_image")) && 77 hasExtension("EGL_ANDROID_image_native_buffer")) 78 { 79 mHaveDirectTexture = true; 80 } 81#else 82#warning "EGL_ANDROID_image_native_buffer not supported" 83#endif 84 85 if (hasExtension("GL_ARB_texture_non_power_of_two")) { 86 mHaveNpot = true; 87 } 88 89 if (hasExtension("GL_OES_EGL_image_external")) { 90 mHaveTextureExternal = true; 91 } else if (strstr(mRenderer.string(), "Adreno")) { 92 // hack for Adreno 200 93 mHaveTextureExternal = true; 94 } 95 96 if (hasExtension("GL_OES_framebuffer_object")) { 97 mHaveFramebufferObject = true; 98 } 99} 100 101bool GLExtensions::hasExtension(char const* extension) const 102{ 103 const String8 s(extension); 104 return mExtensionList.indexOf(s) >= 0; 105} 106 107char const* GLExtensions::getVendor() const { 108 return mVendor.string(); 109} 110 111char const* GLExtensions::getRenderer() const { 112 return mRenderer.string(); 113} 114 115char const* GLExtensions::getVersion() const { 116 return mVersion.string(); 117} 118 119char const* GLExtensions::getExtension() const { 120 return mExtensions.string(); 121} 122 123char const* GLExtensions::getEglVendor() const { 124 return mEglVendor.string(); 125} 126 127char const* GLExtensions::getEglVersion() const { 128 return mEglVersion.string(); 129} 130 131char const* GLExtensions::getEglExtension() const { 132 return mEglExtensions.string(); 133} 134 135 136// --------------------------------------------------------------------------- 137}; // namespace android 138