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#define ATRACE_TAG ATRACE_TAG_GRAPHICS 19 20#include <stdint.h> 21#include <errno.h> 22 23#include <utils/Errors.h> 24#include <utils/Log.h> 25#include <utils/Trace.h> 26 27#include <ui/GraphicBufferMapper.h> 28#include <ui/Rect.h> 29 30#include <hardware/gralloc.h> 31 32 33namespace android { 34// --------------------------------------------------------------------------- 35 36ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper ) 37 38GraphicBufferMapper::GraphicBufferMapper() 39 : mAllocMod(0) 40{ 41 hw_module_t const* module; 42 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module); 43 ALOGE_IF(err, "FATAL: can't find the %s module", GRALLOC_HARDWARE_MODULE_ID); 44 if (err == 0) { 45 mAllocMod = (gralloc_module_t const *)module; 46 } 47} 48 49status_t GraphicBufferMapper::registerBuffer(buffer_handle_t handle) 50{ 51 ATRACE_CALL(); 52 status_t err; 53 54 err = mAllocMod->registerBuffer(mAllocMod, handle); 55 56 ALOGW_IF(err, "registerBuffer(%p) failed %d (%s)", 57 handle, err, strerror(-err)); 58 return err; 59} 60 61status_t GraphicBufferMapper::unregisterBuffer(buffer_handle_t handle) 62{ 63 ATRACE_CALL(); 64 status_t err; 65 66 err = mAllocMod->unregisterBuffer(mAllocMod, handle); 67 68 ALOGW_IF(err, "unregisterBuffer(%p) failed %d (%s)", 69 handle, err, strerror(-err)); 70 return err; 71} 72 73status_t GraphicBufferMapper::lock(buffer_handle_t handle, 74 int usage, const Rect& bounds, void** vaddr) 75{ 76 ATRACE_CALL(); 77 status_t err; 78 79 err = mAllocMod->lock(mAllocMod, handle, usage, 80 bounds.left, bounds.top, bounds.width(), bounds.height(), 81 vaddr); 82 83 ALOGW_IF(err, "lock(...) failed %d (%s)", err, strerror(-err)); 84 return err; 85} 86 87status_t GraphicBufferMapper::unlock(buffer_handle_t handle) 88{ 89 ATRACE_CALL(); 90 status_t err; 91 92 err = mAllocMod->unlock(mAllocMod, handle); 93 94 ALOGW_IF(err, "unlock(...) failed %d (%s)", err, strerror(-err)); 95 return err; 96} 97 98// --------------------------------------------------------------------------- 99}; // namespace android 100