1 /* 2 * Copyright 2017 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 "Image.h" 18 19 #include <vector> 20 21 #include <log/log.h> 22 23 #include "GLExtensions.h" 24 #include "RenderEngine.h" 25 26 namespace android { 27 namespace RE { 28 29 Image::~Image() = default; 30 31 namespace impl { 32 33 Image::Image(const RenderEngine& engine) : mEGLDisplay(engine.getEGLDisplay()) {} 34 35 Image::~Image() { 36 setNativeWindowBuffer(nullptr, false, 0, 0); 37 } 38 39 static std::vector<EGLint> buildAttributeList(bool isProtected, int32_t cropWidth, 40 int32_t cropHeight) { 41 std::vector<EGLint> attrs; 42 attrs.reserve(16); 43 44 attrs.push_back(EGL_IMAGE_PRESERVED_KHR); 45 attrs.push_back(EGL_TRUE); 46 47 if (isProtected && GLExtensions::getInstance().hasProtectedContent()) { 48 attrs.push_back(EGL_PROTECTED_CONTENT_EXT); 49 attrs.push_back(EGL_TRUE); 50 } 51 52 if (cropWidth > 0 && cropHeight > 0) { 53 attrs.push_back(EGL_IMAGE_CROP_LEFT_ANDROID); 54 attrs.push_back(0); 55 attrs.push_back(EGL_IMAGE_CROP_TOP_ANDROID); 56 attrs.push_back(0); 57 attrs.push_back(EGL_IMAGE_CROP_RIGHT_ANDROID); 58 attrs.push_back(cropWidth); 59 attrs.push_back(EGL_IMAGE_CROP_BOTTOM_ANDROID); 60 attrs.push_back(cropHeight); 61 } 62 63 attrs.push_back(EGL_NONE); 64 65 return attrs; 66 } 67 68 bool Image::setNativeWindowBuffer(ANativeWindowBuffer* buffer, bool isProtected, int32_t cropWidth, 69 int32_t cropHeight) { 70 if (mEGLImage != EGL_NO_IMAGE_KHR) { 71 if (!eglDestroyImageKHR(mEGLDisplay, mEGLImage)) { 72 ALOGE("failed to destroy image: %#x", eglGetError()); 73 } 74 mEGLImage = EGL_NO_IMAGE_KHR; 75 } 76 77 if (buffer) { 78 std::vector<EGLint> attrs = buildAttributeList(isProtected, cropWidth, cropHeight); 79 mEGLImage = eglCreateImageKHR(mEGLDisplay, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, 80 static_cast<EGLClientBuffer>(buffer), attrs.data()); 81 if (mEGLImage == EGL_NO_IMAGE_KHR) { 82 ALOGE("failed to create EGLImage: %#x", eglGetError()); 83 return false; 84 } 85 } 86 87 return true; 88 } 89 90 } // namespace impl 91 } // namespace RE 92 } // namespace android 93
