1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
4 * Not a Contribution, Apache license notifications and license are retained
5 * for attribution purposes only.
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 "overlayRotator.h"
21 #include "overlayUtils.h"
22 #include "mdp_version.h"
23 #include "gr.h"
24
25 namespace ovutils = overlay::utils;
26
27 namespace overlay {
28
29 //============Rotator=========================
30
~Rotator()31 Rotator::~Rotator() {}
32
getRotator()33 Rotator* Rotator::getRotator() {
34 int type = getRotatorHwType();
35 if(type == TYPE_MDP) {
36 return new MdpRot(); //will do reset
37 } else if(type == TYPE_MDSS) {
38 return new MdssRot();
39 } else {
40 ALOGE("%s Unknown h/w type %d", __FUNCTION__, type);
41 return NULL;
42 }
43 }
44
calcOutputBufSize(const utils::Whf & destWhf)45 uint32_t Rotator::calcOutputBufSize(const utils::Whf& destWhf) {
46 //dummy aligned w & h.
47 int alW = 0, alH = 0;
48 int halFormat = ovutils::getHALFormat(destWhf.format);
49 //A call into gralloc/memalloc
50 return getBufferSizeAndDimensions(
51 destWhf.w, destWhf.h, halFormat, alW, alH);
52 }
53
getRotatorHwType()54 int Rotator::getRotatorHwType() {
55 int mdpVersion = qdutils::MDPVersion::getInstance().getMDPVersion();
56 if (mdpVersion == qdutils::MDSS_V5)
57 return TYPE_MDSS;
58 return TYPE_MDP;
59 }
60
61
62 //============RotMem=========================
63
close()64 bool RotMem::close() {
65 bool ret = true;
66 for(uint32_t i=0; i < RotMem::MAX_ROT_MEM; ++i) {
67 // skip current, and if valid, close
68 if(m[i].valid()) {
69 if(m[i].close() == false) {
70 ALOGE("%s error in closing rot mem %d", __FUNCTION__, i);
71 ret = false;
72 }
73 }
74 }
75 return ret;
76 }
77
Mem()78 RotMem::Mem::Mem() : mCurrOffset(0) {
79 utils::memset0(mRotOffset);
80 for(int i = 0; i < ROT_NUM_BUFS; i++) {
81 mRelFence[i] = -1;
82 }
83 }
84
~Mem()85 RotMem::Mem::~Mem() {
86 for(int i = 0; i < ROT_NUM_BUFS; i++) {
87 ::close(mRelFence[i]);
88 mRelFence[i] = -1;
89 }
90 }
91
setReleaseFd(const int & fence)92 void RotMem::Mem::setReleaseFd(const int& fence) {
93 int ret = 0;
94
95 if(mRelFence[mCurrOffset] >= 0) {
96 //Wait for previous usage of this buffer to be over.
97 //Can happen if rotation takes > vsync and a fast producer. i.e queue
98 //happens in subsequent vsyncs either because content is 60fps or
99 //because the producer is hasty sometimes.
100 ret = sync_wait(mRelFence[mCurrOffset], 1000);
101 if(ret < 0) {
102 ALOGE("%s: sync_wait error!! error no = %d err str = %s",
103 __FUNCTION__, errno, strerror(errno));
104 }
105 ::close(mRelFence[mCurrOffset]);
106 }
107 mRelFence[mCurrOffset] = fence;
108 }
109
110 //============RotMgr=========================
111
RotMgr()112 RotMgr::RotMgr() {
113 for(int i = 0; i < MAX_ROT_SESS; i++) {
114 mRot[i] = 0;
115 }
116 mUseCount = 0;
117 mRotDevFd = -1;
118 }
119
~RotMgr()120 RotMgr::~RotMgr() {
121 clear();
122 }
123
configBegin()124 void RotMgr::configBegin() {
125 //Reset the number of objects used
126 mUseCount = 0;
127 }
128
configDone()129 void RotMgr::configDone() {
130 //Remove the top most unused objects. Videos come and go.
131 for(int i = mUseCount; i < MAX_ROT_SESS; i++) {
132 if(mRot[i]) {
133 delete mRot[i];
134 mRot[i] = 0;
135 }
136 }
137 }
138
getNext()139 Rotator* RotMgr::getNext() {
140 //Return a rot object, creating one if necessary
141 overlay::Rotator *rot = NULL;
142 if(mUseCount >= MAX_ROT_SESS) {
143 ALOGE("%s, MAX rotator sessions reached", __func__);
144 } else {
145 if(mRot[mUseCount] == NULL)
146 mRot[mUseCount] = overlay::Rotator::getRotator();
147 rot = mRot[mUseCount++];
148 }
149 return rot;
150 }
151
clear()152 void RotMgr::clear() {
153 //Brute force obj destruction, helpful in suspend.
154 for(int i = 0; i < MAX_ROT_SESS; i++) {
155 if(mRot[i]) {
156 delete mRot[i];
157 mRot[i] = 0;
158 }
159 }
160 mUseCount = 0;
161 ::close(mRotDevFd);
162 mRotDevFd = -1;
163 }
164
getDump(char * buf,size_t len)165 void RotMgr::getDump(char *buf, size_t len) {
166 for(int i = 0; i < MAX_ROT_SESS; i++) {
167 if(mRot[i]) {
168 mRot[i]->getDump(buf, len);
169 }
170 }
171 char str[32] = {'\0'};
172 snprintf(str, 32, "\n================\n");
173 strncat(buf, str, strlen(str));
174 }
175
getRotDevFd()176 int RotMgr::getRotDevFd() {
177 //2nd check just in case
178 if(mRotDevFd < 0 && Rotator::getRotatorHwType() == Rotator::TYPE_MDP) {
179 mRotDevFd = ::open("/dev/msm_rotator", O_RDWR, 0);
180 if(mRotDevFd < 0) {
181 ALOGE("%s failed to open rotator device", __FUNCTION__);
182 }
183 }
184 return mRotDevFd;
185 }
186
187 }
188