1 /* 2 * Copyright (C) 2007 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 #define LOG_TAG "GraphicBufferMapper" 18 19 #include <stdint.h> 20 #include <errno.h> 21 22 #include <utils/Errors.h> 23 #include <utils/Log.h> 24 25 #include <ui/GraphicBufferMapper.h> 26 #include <ui/Rect.h> 27 28 #include <hardware/gralloc.h> 29 30 31 namespace android { 32 // --------------------------------------------------------------------------- 33 34 ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper ) 35 36 GraphicBufferMapper::GraphicBufferMapper() 37 : mAllocMod(0) 38 { 39 hw_module_t const* module; 40 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); 41 LOGE_IF(err, "FATAL: can't find the %s module", GRALLOC_HARDWARE_MODULE_ID); 42 if (err == 0) { 43 mAllocMod = (gralloc_module_t const *)module; 44 } 45 } 46 47 status_t GraphicBufferMapper::registerBuffer(buffer_handle_t handle) 48 { 49 status_t err; 50 51 err = mAllocMod->registerBuffer(mAllocMod, handle); 52 53 LOGW_IF(err, "registerBuffer(%p) failed %d (%s)", 54 handle, err, strerror(-err)); 55 return err; 56 } 57 58 status_t GraphicBufferMapper::unregisterBuffer(buffer_handle_t handle) 59 { 60 status_t err; 61 62 err = mAllocMod->unregisterBuffer(mAllocMod, handle); 63 64 LOGW_IF(err, "unregisterBuffer(%p) failed %d (%s)", 65 handle, err, strerror(-err)); 66 return err; 67 } 68 69 status_t GraphicBufferMapper::lock(buffer_handle_t handle, 70 int usage, const Rect& bounds, void** vaddr) 71 { 72 status_t err; 73 74 err = mAllocMod->lock(mAllocMod, handle, usage, 75 bounds.left, bounds.top, bounds.width(), bounds.height(), 76 vaddr); 77 78 LOGW_IF(err, "lock(...) failed %d (%s)", err, strerror(-err)); 79 return err; 80 } 81 82 status_t GraphicBufferMapper::unlock(buffer_handle_t handle) 83 { 84 status_t err; 85 86 err = mAllocMod->unlock(mAllocMod, handle); 87 88 LOGW_IF(err, "unlock(...) failed %d (%s)", err, strerror(-err)); 89 return err; 90 } 91 92 // --------------------------------------------------------------------------- 93 }; // namespace android 94
