1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 * Copyright (c) 2010-2013, 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 "overlayUtils.h"
21 #include "overlayRotator.h"
22
23 namespace ovutils = overlay::utils;
24
25 namespace overlay {
26
MdpRot()27 MdpRot::MdpRot() {
28 reset();
29 init();
30 }
31
~MdpRot()32 MdpRot::~MdpRot() { close(); }
33
enabled() const34 bool MdpRot::enabled() const { return mRotImgInfo.enable; }
35
setRotations(uint32_t r)36 void MdpRot::setRotations(uint32_t r) { mRotImgInfo.rotations = r; }
37
getDstMemId() const38 int MdpRot::getDstMemId() const {
39 return mRotDataInfo.dst.memory_id;
40 }
41
getDstOffset() const42 uint32_t MdpRot::getDstOffset() const {
43 return mRotDataInfo.dst.offset;
44 }
45
getDstFormat() const46 uint32_t MdpRot::getDstFormat() const {
47 return mRotImgInfo.dst.format;
48 }
49
getSessId() const50 uint32_t MdpRot::getSessId() const { return mRotImgInfo.session_id; }
51
setDownscale(int ds)52 void MdpRot::setDownscale(int ds) {
53 if(mRotImgInfo.src.format == MDP_Y_CR_CB_GH2V2){
54 if((utils::ROT_DS_HALF == ds) && (mRotImgInfo.src_rect.h &0x3))
55 mRotImgInfo.src_rect.h = utils::aligndown(mRotImgInfo.src_rect.h, 4);
56 else if(((utils::ROT_DS_FOURTH == ds) && (mRotImgInfo.src_rect.h &0x7)))
57 mRotImgInfo.src_rect.h = utils::aligndown(mRotImgInfo.src_rect.h, 8);
58 else if(((utils::ROT_DS_EIGHTH == ds) && (mRotImgInfo.src_rect.h &0xf)))
59 mRotImgInfo.src_rect.h = utils::aligndown(mRotImgInfo.src_rect.h, 16);
60 } else if ((utils::ROT_DS_EIGHTH == ds) && (mRotImgInfo.src_rect.h & 0xF)) {
61 // Ensure src_rect.h is a multiple of 16 for 1/8 downscaling.
62 // This is an undocumented MDP Rotator constraint.
63 // Note that src_rect.h is already ensured to be 32 pixel height aligned
64 // for MDP_Y_CRCB_H2V2_TILE and MDP_Y_CBCR_H2V2_TILE formats.
65 mRotImgInfo.src_rect.h = utils::alignup(mRotImgInfo.src_rect.h, 16);
66 }
67 mRotImgInfo.downscale_ratio = ds;
68 }
69
save()70 void MdpRot::save() {
71 mLSRotImgInfo = mRotImgInfo;
72 }
73
rotConfChanged() const74 bool MdpRot::rotConfChanged() const {
75 // 0 means same
76 if(0 == ::memcmp(&mRotImgInfo, &mLSRotImgInfo,
77 sizeof (msm_rotator_img_info))) {
78 return false;
79 }
80 return true;
81 }
82
init()83 bool MdpRot::init()
84 {
85 if(!mFd.open(Res::rotPath, O_RDWR)){
86 ALOGE("MdpRot failed to init %s", Res::rotPath);
87 return false;
88 }
89 return true;
90 }
91
setSource(const overlay::utils::Whf & awhf)92 void MdpRot::setSource(const overlay::utils::Whf& awhf) {
93 utils::Whf whf(awhf);
94 mRotImgInfo.src.format = whf.format;
95
96 mRotImgInfo.src.width = whf.w;
97 mRotImgInfo.src.height = whf.h;
98
99 mRotImgInfo.src_rect.w = whf.w;
100 mRotImgInfo.src_rect.h = whf.h;
101
102 mRotImgInfo.dst.width = whf.w;
103 mRotImgInfo.dst.height = whf.h;
104 }
105
setSource(const utils::Whf & awhf,const utils::Whf & owhf)106 void MdpRot::setSource(const utils::Whf& awhf, const utils::Whf& owhf) {
107 mOrigWhf = owhf;
108 setSource(awhf);
109 }
110
setFlags(const utils::eMdpFlags & flags)111 void MdpRot::setFlags(const utils::eMdpFlags& flags) {
112 mRotImgInfo.secure = 0;
113 if(flags & utils::OV_MDP_SECURE_OVERLAY_SESSION)
114 mRotImgInfo.secure = 1;
115 }
116
setTransform(const utils::eTransform & rot)117 void MdpRot::setTransform(const utils::eTransform& rot)
118 {
119 int r = utils::getMdpOrient(rot);
120 setRotations(r);
121 //getMdpOrient will switch the flips if the source is 90 rotated.
122 //Clients in Android dont factor in 90 rotation while deciding the flip.
123 mOrientation = static_cast<utils::eTransform>(r);
124 ALOGE_IF(DEBUG_OVERLAY, "%s: r=%d", __FUNCTION__, r);
125 }
126
doTransform()127 void MdpRot::doTransform() {
128 if(mOrientation & utils::OVERLAY_TRANSFORM_ROT_90)
129 utils::swap(mRotImgInfo.dst.width, mRotImgInfo.dst.height);
130 }
131
commit()132 bool MdpRot::commit() {
133 doTransform();
134 if(rotConfChanged()) {
135 mRotImgInfo.enable = 1;
136 if(!overlay::mdp_wrapper::startRotator(mFd.getFD(), mRotImgInfo)) {
137 ALOGE("MdpRot commit failed");
138 dump();
139 mRotImgInfo.enable = 0;
140 return false;
141 }
142 save();
143 mRotDataInfo.session_id = mRotImgInfo.session_id;
144 }
145 return true;
146 }
147
calcOutputBufSize()148 uint32_t MdpRot::calcOutputBufSize() {
149 if(mOrientation & utils::OVERLAY_TRANSFORM_ROT_90)
150 utils::swap(mOrigWhf.w, mOrigWhf.h);
151
152 ovutils::Whf destWhf(mOrigWhf.w, mOrigWhf.h,
153 mRotImgInfo.dst.format);
154 return Rotator::calcOutputBufSize(destWhf);
155 }
156
open_i(uint32_t numbufs,uint32_t bufsz)157 bool MdpRot::open_i(uint32_t numbufs, uint32_t bufsz)
158 {
159 OvMem mem;
160
161 OVASSERT(MAP_FAILED == mem.addr(), "MAP failed in open_i");
162
163 if(!mem.open(numbufs, bufsz, mRotImgInfo.secure)){
164 ALOGE("%s: Failed to open", __func__);
165 mem.close();
166 return false;
167 }
168
169 OVASSERT(MAP_FAILED != mem.addr(), "MAP failed");
170 OVASSERT(mem.getFD() != -1, "getFd is -1");
171
172 mRotDataInfo.dst.memory_id = mem.getFD();
173 mRotDataInfo.dst.offset = 0;
174 mMem.curr().m = mem;
175 return true;
176 }
177
close()178 bool MdpRot::close() {
179 bool success = true;
180 if(mFd.valid() && (getSessId() != 0)) {
181 if(!mdp_wrapper::endRotator(mFd.getFD(), getSessId())) {
182 ALOGE("Mdp Rot error endRotator, fd=%d sessId=%u",
183 mFd.getFD(), getSessId());
184 success = false;
185 }
186 }
187 if (!mFd.close()) {
188 ALOGE("Mdp Rot error closing fd");
189 success = false;
190 }
191 if (!mMem.close()) {
192 ALOGE("Mdp Rot error closing mem");
193 success = false;
194 }
195 reset();
196 return success;
197 }
198
remap(uint32_t numbufs)199 bool MdpRot::remap(uint32_t numbufs) {
200 // if current size changed, remap
201 uint32_t opBufSize = calcOutputBufSize();
202 if(opBufSize == mMem.curr().size()) {
203 ALOGE_IF(DEBUG_OVERLAY, "%s: same size %d", __FUNCTION__, opBufSize);
204 return true;
205 }
206
207 ALOGE_IF(DEBUG_OVERLAY, "%s: size changed - remapping", __FUNCTION__);
208 OVASSERT(!mMem.prev().valid(), "Prev should not be valid");
209
210 // ++mMem will make curr to be prev, and prev will be curr
211 ++mMem;
212 if(!open_i(numbufs, opBufSize)) {
213 ALOGE("%s Error could not open", __FUNCTION__);
214 return false;
215 }
216 for (uint32_t i = 0; i < numbufs; ++i) {
217 mMem.curr().mRotOffset[i] = i * opBufSize;
218 }
219 return true;
220 }
221
reset()222 void MdpRot::reset() {
223 ovutils::memset0(mRotImgInfo);
224 ovutils::memset0(mLSRotImgInfo);
225 ovutils::memset0(mRotDataInfo);
226 ovutils::memset0(mMem.curr().mRotOffset);
227 ovutils::memset0(mMem.prev().mRotOffset);
228 mMem.curr().mCurrOffset = 0;
229 mMem.prev().mCurrOffset = 0;
230 mOrientation = utils::OVERLAY_TRANSFORM_0;
231 }
232
queueBuffer(int fd,uint32_t offset)233 bool MdpRot::queueBuffer(int fd, uint32_t offset) {
234 if(enabled()) {
235 mRotDataInfo.src.memory_id = fd;
236 mRotDataInfo.src.offset = offset;
237
238 remap(RotMem::Mem::ROT_NUM_BUFS);
239 OVASSERT(mMem.curr().m.numBufs(),
240 "queueBuffer numbufs is 0");
241 mRotDataInfo.dst.offset =
242 mMem.curr().mRotOffset[mMem.curr().mCurrOffset];
243 mMem.curr().mCurrOffset =
244 (mMem.curr().mCurrOffset + 1) % mMem.curr().m.numBufs();
245
246 if(!overlay::mdp_wrapper::rotate(mFd.getFD(), mRotDataInfo)) {
247 ALOGE("MdpRot failed rotate");
248 dump();
249 return false;
250 }
251
252 // if the prev mem is valid, we need to close
253 if(mMem.prev().valid()) {
254 // FIXME if no wait for vsync the above
255 // play will return immediatly and might cause
256 // tearing when prev.close is called.
257 if(!mMem.prev().close()) {
258 ALOGE("%s error in closing prev rot mem", __FUNCTION__);
259 return false;
260 }
261 }
262 }
263 return true;
264 }
265
dump() const266 void MdpRot::dump() const {
267 ALOGE("== Dump MdpRot start ==");
268 mFd.dump();
269 mMem.curr().m.dump();
270 mdp_wrapper::dump("mRotImgInfo", mRotImgInfo);
271 mdp_wrapper::dump("mRotDataInfo", mRotDataInfo);
272 ALOGE("== Dump MdpRot end ==");
273 }
274
getDump(char * buf,size_t len) const275 void MdpRot::getDump(char *buf, size_t len) const {
276 ovutils::getDump(buf, len, "MdpRotCtrl(msm_rotator_img_info)", mRotImgInfo);
277 ovutils::getDump(buf, len, "MdpRotData(msm_rotator_data_info)", mRotDataInfo);
278 }
279
280 } // namespace overlay
281