HWComposer.cpp revision 45721773e1a68e96da4b6cc04cef276bae7ca3e9
1a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian/* 2a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * Copyright (C) 2010 The Android Open Source Project 3a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * 4a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 5a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * you may not use this file except in compliance with the License. 6a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * You may obtain a copy of the License at 7a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * 8a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 9a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * 10a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * Unless required by applicable law or agreed to in writing, software 11a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 12a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * See the License for the specific language governing permissions and 14a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian * limitations under the License. 15a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian */ 16a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 17a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian#include <stdint.h> 18f1352df47fe20aed23c216a78923c7d248f2bb91Mathias Agopian#include <stdio.h> 19f1352df47fe20aed23c216a78923c7d248f2bb91Mathias Agopian#include <stdlib.h> 20f1352df47fe20aed23c216a78923c7d248f2bb91Mathias Agopian#include <string.h> 21a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian#include <sys/types.h> 22a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 23a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian#include <utils/Errors.h> 24a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 25a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian#include <hardware/hardware.h> 26a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 27a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian#include <cutils/log.h> 28a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 29a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian#include <EGL/egl.h> 30a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 31a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian#include "HWComposer.h" 32a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 33a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopiannamespace android { 34a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian// --------------------------------------------------------------------------- 35a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 36a350ff98692b3a50cad5cc93f9f83221242ca86aMathias AgopianHWComposer::HWComposer() 3745721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian : mModule(0), mHwc(0), mList(0), mCapacity(0), 38a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian mDpy(EGL_NO_DISPLAY), mSur(EGL_NO_SURFACE) 39a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian{ 40a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule); 41a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian LOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID); 42a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian if (err == 0) { 43a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian err = hwc_open(mModule, &mHwc); 44a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian LOGE_IF(err, "%s device failed to initialize (%s)", 45a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian HWC_HARDWARE_COMPOSER, strerror(-err)); 46a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian } 47a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 48a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 49a350ff98692b3a50cad5cc93f9f83221242ca86aMathias AgopianHWComposer::~HWComposer() { 50a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian free(mList); 51a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian if (mHwc) { 52a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian hwc_close(mHwc); 53a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian } 54a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 55a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 56a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopianstatus_t HWComposer::initCheck() const { 57a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian return mHwc ? NO_ERROR : NO_INIT; 58a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 59a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 60a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopianvoid HWComposer::setFrameBuffer(EGLDisplay dpy, EGLSurface sur) { 61a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian mDpy = (hwc_display_t)dpy; 62a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian mSur = (hwc_surface_t)sur; 63a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 64a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 65a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopianstatus_t HWComposer::createWorkList(size_t numLayers) { 6645721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian if (mHwc) { 6745721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian if (!mList || mCapacity < numLayers) { 6845721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian free(mList); 6945721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian size_t size = sizeof(hwc_layer_list) + numLayers*sizeof(hwc_layer_t); 7045721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian mList = (hwc_layer_list_t*)malloc(size); 7145721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian mCapacity = numLayers; 7245721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian } 73a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian mList->flags = HWC_GEOMETRY_CHANGED; 74a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian mList->numHwLayers = numLayers; 75a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian } 76a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian return NO_ERROR; 77a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 78a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 79a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopianstatus_t HWComposer::prepare() const { 80a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian int err = mHwc->prepare(mHwc, mList); 81a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian return (status_t)err; 82a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 83a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 84a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopianstatus_t HWComposer::commit() const { 85a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian int err = mHwc->set(mHwc, mDpy, mSur, mList); 86a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian mList->flags &= ~HWC_GEOMETRY_CHANGED; 87a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian return (status_t)err; 88a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 89a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 9045721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopiansize_t HWComposer::getNumLayers() const { 9145721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian return mList ? mList->numHwLayers : 0; 92a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 93a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 9445721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopianhwc_layer_t* HWComposer::getLayers() const { 9545721773e1a68e96da4b6cc04cef276bae7ca3e9Mathias Agopian return mList ? mList->hwLayers : 0; 96a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian} 97a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian 98a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian// --------------------------------------------------------------------------- 99a350ff98692b3a50cad5cc93f9f83221242ca86aMathias Agopian}; // namespace android 100