1 /* 2 * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved. 3 * Not a Contribution. 4 * 5 * Copyright 2015 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 20 #include "EGLImageBuffer.h" 21 #include <cutils/native_handle.h> 22 #include <gralloc_priv.h> 23 #include <ui/GraphicBuffer.h> 24 #include <map> 25 #include "EGLImageWrapper.h" 26 #include "glengine.h" 27 #define EGL_PROTECTED_CONTENT_EXT 0x32C0 28 29 //----------------------------------------------------------------------------- 30 EGLImageKHR create_eglImage(android::sp<android::GraphicBuffer> graphicBuffer) 31 //----------------------------------------------------------------------------- 32 { 33 bool isProtected = (graphicBuffer->getUsage() & GRALLOC_USAGE_PROTECTED); 34 EGLint attrs[] = {EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, 35 isProtected ? EGL_PROTECTED_CONTENT_EXT : EGL_NONE, 36 isProtected ? EGL_TRUE : EGL_NONE, EGL_NONE}; 37 38 EGLImageKHR eglImage = eglCreateImageKHR( 39 eglGetCurrentDisplay(), (EGLContext)EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, 40 (EGLClientBuffer)(graphicBuffer->getNativeBuffer()), attrs); 41 42 return eglImage; 43 } 44 45 //----------------------------------------------------------------------------- 46 EGLImageBuffer::EGLImageBuffer(android::sp<android::GraphicBuffer> graphicBuffer) 47 //----------------------------------------------------------------------------- 48 { 49 // this->graphicBuffer = graphicBuffer; 50 this->eglImageID = create_eglImage(graphicBuffer); 51 this->width = graphicBuffer->getWidth(); 52 this->height = graphicBuffer->getHeight(); 53 54 textureID = 0; 55 renderbufferID = 0; 56 framebufferID = 0; 57 } 58 59 //----------------------------------------------------------------------------- 60 EGLImageBuffer::~EGLImageBuffer() 61 //----------------------------------------------------------------------------- 62 { 63 if (textureID != 0) { 64 GL(glDeleteTextures(1, &textureID)); 65 textureID = 0; 66 } 67 68 if (renderbufferID != 0) { 69 GL(glDeleteRenderbuffers(1, &renderbufferID)); 70 renderbufferID = 0; 71 } 72 73 if (framebufferID != 0) { 74 GL(glDeleteFramebuffers(1, &framebufferID)); 75 framebufferID = 0; 76 } 77 78 // Delete the eglImage 79 if (eglImageID != 0) 80 { 81 eglDestroyImageKHR(eglGetCurrentDisplay(), eglImageID); 82 eglImageID = 0; 83 } 84 } 85 86 //----------------------------------------------------------------------------- 87 int EGLImageBuffer::getWidth() 88 //----------------------------------------------------------------------------- 89 { 90 return width; 91 } 92 93 //----------------------------------------------------------------------------- 94 int EGLImageBuffer::getHeight() 95 //----------------------------------------------------------------------------- 96 { 97 return height; 98 } 99 100 //----------------------------------------------------------------------------- 101 unsigned int EGLImageBuffer::getTexture() 102 //----------------------------------------------------------------------------- 103 { 104 if (textureID == 0) { 105 bindAsTexture(); 106 } 107 108 return textureID; 109 } 110 111 //----------------------------------------------------------------------------- 112 unsigned int EGLImageBuffer::getFramebuffer() 113 //----------------------------------------------------------------------------- 114 { 115 if (framebufferID == 0) { 116 bindAsFramebuffer(); 117 } 118 119 return framebufferID; 120 } 121 122 //----------------------------------------------------------------------------- 123 void EGLImageBuffer::bindAsTexture() 124 //----------------------------------------------------------------------------- 125 { 126 if (textureID == 0) { 127 GL(glGenTextures(1, &textureID)); 128 int target = 0x8D65; 129 GL(glBindTexture(target, textureID)); 130 GL(glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR)); 131 GL(glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR)); 132 GL(glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE)); 133 GL(glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE)); 134 135 GL(glEGLImageTargetTexture2DOES(0x8D65, eglImageID)); 136 } 137 138 GL(glBindTexture(0x8D65, textureID)); 139 } 140 141 //----------------------------------------------------------------------------- 142 void EGLImageBuffer::bindAsFramebuffer() 143 //----------------------------------------------------------------------------- 144 { 145 if (renderbufferID == 0) { 146 GL(glGenFramebuffers(1, &framebufferID)); 147 GL(glGenRenderbuffers(1, &renderbufferID)); 148 149 GL(glBindRenderbuffer(GL_RENDERBUFFER, renderbufferID)); 150 GL(glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER, eglImageID)); 151 152 GL(glBindFramebuffer(GL_FRAMEBUFFER, framebufferID)); 153 GL(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, 154 renderbufferID)); 155 GLenum result = glCheckFramebufferStatus(GL_FRAMEBUFFER); 156 if (result != GL_FRAMEBUFFER_COMPLETE) { 157 ALOGI("%s Framebuffer Invalid***************", __FUNCTION__); 158 } 159 } 160 161 GL(glBindFramebuffer(GL_FRAMEBUFFER, framebufferID)); 162 } 163
