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 27 MdpRot::MdpRot() { 28 reset(); 29 init(); 30 } 31 32 MdpRot::~MdpRot() { close(); } 33 34 bool MdpRot::enabled() const { return mRotImgInfo.enable; } 35 36 void MdpRot::setRotations(uint32_t r) { mRotImgInfo.rotations = r; } 37 38 int MdpRot::getDstMemId() const { 39 return mRotDataInfo.dst.memory_id; 40 } 41 42 uint32_t MdpRot::getDstOffset() const { 43 return mRotDataInfo.dst.offset; 44 } 45 46 uint32_t MdpRot::getDstFormat() const { 47 return mRotImgInfo.dst.format; 48 } 49 50 uint32_t MdpRot::getSessId() const { return mRotImgInfo.session_id; } 51 52 void MdpRot::setDownscale(int ds) { 53 if ((utils::ROT_DS_EIGHTH == ds) && (mRotImgInfo.src_rect.h & 0xF)) { 54 // Ensure src_rect.h is a multiple of 16 for 1/8 downscaling. 55 // This is an undocumented MDP Rotator constraint. 56 mRotImgInfo.src_rect.h = utils::aligndown(mRotImgInfo.src_rect.h, 16); 57 } 58 mRotImgInfo.downscale_ratio = ds; 59 } 60 61 void MdpRot::save() { 62 mLSRotImgInfo = mRotImgInfo; 63 } 64 65 bool MdpRot::rotConfChanged() const { 66 // 0 means same 67 if(0 == ::memcmp(&mRotImgInfo, &mLSRotImgInfo, 68 sizeof (msm_rotator_img_info))) { 69 return false; 70 } 71 return true; 72 } 73 74 bool MdpRot::init() 75 { 76 if(!mFd.open(Res::rotPath, O_RDWR)){ 77 ALOGE("MdpRot failed to init %s", Res::rotPath); 78 return false; 79 } 80 return true; 81 } 82 83 void MdpRot::setSource(const overlay::utils::Whf& awhf) { 84 utils::Whf whf(awhf); 85 mRotImgInfo.src.format = whf.format; 86 87 mRotImgInfo.src.width = whf.w; 88 mRotImgInfo.src.height = whf.h; 89 90 mRotImgInfo.src_rect.w = whf.w; 91 mRotImgInfo.src_rect.h = whf.h; 92 93 mRotImgInfo.dst.width = whf.w; 94 mRotImgInfo.dst.height = whf.h; 95 } 96 97 void MdpRot::setSource(const utils::Whf& awhf, const utils::Whf& owhf) { 98 mOrigWhf = owhf; 99 setSource(awhf); 100 } 101 102 void MdpRot::setFlags(const utils::eMdpFlags& flags) { 103 mRotImgInfo.secure = 0; 104 if(flags & utils::OV_MDP_SECURE_OVERLAY_SESSION) 105 mRotImgInfo.secure = 1; 106 } 107 108 void MdpRot::setTransform(const utils::eTransform& rot) 109 { 110 int r = utils::getMdpOrient(rot); 111 setRotations(r); 112 //getMdpOrient will switch the flips if the source is 90 rotated. 113 //Clients in Android dont factor in 90 rotation while deciding the flip. 114 mOrientation = static_cast<utils::eTransform>(r); 115 ALOGE_IF(DEBUG_OVERLAY, "%s: r=%d", __FUNCTION__, r); 116 } 117 118 void MdpRot::doTransform() { 119 if(mOrientation & utils::OVERLAY_TRANSFORM_ROT_90) 120 utils::swap(mRotImgInfo.dst.width, mRotImgInfo.dst.height); 121 } 122 123 bool MdpRot::commit() { 124 doTransform(); 125 if(rotConfChanged()) { 126 mRotImgInfo.enable = 1; 127 if(!overlay::mdp_wrapper::startRotator(mFd.getFD(), mRotImgInfo)) { 128 ALOGE("MdpRot commit failed"); 129 dump(); 130 mRotImgInfo.enable = 0; 131 return false; 132 } 133 save(); 134 mRotDataInfo.session_id = mRotImgInfo.session_id; 135 } 136 return true; 137 } 138 139 uint32_t MdpRot::calcOutputBufSize() { 140 if(mOrientation & utils::OVERLAY_TRANSFORM_ROT_90) 141 utils::swap(mOrigWhf.w, mOrigWhf.h); 142 143 ovutils::Whf destWhf(mOrigWhf.w, mOrigWhf.h, 144 mRotImgInfo.dst.format); 145 return Rotator::calcOutputBufSize(destWhf); 146 } 147 148 bool MdpRot::open_i(uint32_t numbufs, uint32_t bufsz) 149 { 150 OvMem mem; 151 152 OVASSERT(MAP_FAILED == mem.addr(), "MAP failed in open_i"); 153 154 if(!mem.open(numbufs, bufsz, mRotImgInfo.secure)){ 155 ALOGE("%s: Failed to open", __func__); 156 mem.close(); 157 return false; 158 } 159 160 OVASSERT(MAP_FAILED != mem.addr(), "MAP failed"); 161 OVASSERT(mem.getFD() != -1, "getFd is -1"); 162 163 mRotDataInfo.dst.memory_id = mem.getFD(); 164 mRotDataInfo.dst.offset = 0; 165 mMem.curr().m = mem; 166 return true; 167 } 168 169 bool MdpRot::close() { 170 bool success = true; 171 if(mFd.valid() && (getSessId() != 0)) { 172 if(!mdp_wrapper::endRotator(mFd.getFD(), getSessId())) { 173 ALOGE("Mdp Rot error endRotator, fd=%d sessId=%u", 174 mFd.getFD(), getSessId()); 175 success = false; 176 } 177 } 178 if (!mFd.close()) { 179 ALOGE("Mdp Rot error closing fd"); 180 success = false; 181 } 182 if (!mMem.close()) { 183 ALOGE("Mdp Rot error closing mem"); 184 success = false; 185 } 186 reset(); 187 return success; 188 } 189 190 bool MdpRot::remap(uint32_t numbufs) { 191 // if current size changed, remap 192 uint32_t opBufSize = calcOutputBufSize(); 193 if(opBufSize == mMem.curr().size()) { 194 ALOGE_IF(DEBUG_OVERLAY, "%s: same size %d", __FUNCTION__, opBufSize); 195 return true; 196 } 197 198 ALOGE_IF(DEBUG_OVERLAY, "%s: size changed - remapping", __FUNCTION__); 199 OVASSERT(!mMem.prev().valid(), "Prev should not be valid"); 200 201 // ++mMem will make curr to be prev, and prev will be curr 202 ++mMem; 203 if(!open_i(numbufs, opBufSize)) { 204 ALOGE("%s Error could not open", __FUNCTION__); 205 return false; 206 } 207 for (uint32_t i = 0; i < numbufs; ++i) { 208 mMem.curr().mRotOffset[i] = i * opBufSize; 209 } 210 return true; 211 } 212 213 void MdpRot::reset() { 214 ovutils::memset0(mRotImgInfo); 215 ovutils::memset0(mLSRotImgInfo); 216 ovutils::memset0(mRotDataInfo); 217 ovutils::memset0(mMem.curr().mRotOffset); 218 ovutils::memset0(mMem.prev().mRotOffset); 219 mMem.curr().mCurrOffset = 0; 220 mMem.prev().mCurrOffset = 0; 221 mOrientation = utils::OVERLAY_TRANSFORM_0; 222 } 223 224 bool MdpRot::queueBuffer(int fd, uint32_t offset) { 225 if(enabled()) { 226 mRotDataInfo.src.memory_id = fd; 227 mRotDataInfo.src.offset = offset; 228 229 remap(RotMem::Mem::ROT_NUM_BUFS); 230 OVASSERT(mMem.curr().m.numBufs(), 231 "queueBuffer numbufs is 0"); 232 mRotDataInfo.dst.offset = 233 mMem.curr().mRotOffset[mMem.curr().mCurrOffset]; 234 mMem.curr().mCurrOffset = 235 (mMem.curr().mCurrOffset + 1) % mMem.curr().m.numBufs(); 236 237 if(!overlay::mdp_wrapper::rotate(mFd.getFD(), mRotDataInfo)) { 238 ALOGE("MdpRot failed rotate"); 239 dump(); 240 return false; 241 } 242 243 // if the prev mem is valid, we need to close 244 if(mMem.prev().valid()) { 245 // FIXME if no wait for vsync the above 246 // play will return immediatly and might cause 247 // tearing when prev.close is called. 248 if(!mMem.prev().close()) { 249 ALOGE("%s error in closing prev rot mem", __FUNCTION__); 250 return false; 251 } 252 } 253 } 254 return true; 255 } 256 257 void MdpRot::dump() const { 258 ALOGE("== Dump MdpRot start =="); 259 mFd.dump(); 260 mMem.curr().m.dump(); 261 mdp_wrapper::dump("mRotImgInfo", mRotImgInfo); 262 mdp_wrapper::dump("mRotDataInfo", mRotDataInfo); 263 ALOGE("== Dump MdpRot end =="); 264 } 265 266 void MdpRot::getDump(char *buf, size_t len) const { 267 ovutils::getDump(buf, len, "MdpRotCtrl(msm_rotator_img_info)", mRotImgInfo); 268 ovutils::getDump(buf, len, "MdpRotData(msm_rotator_data_info)", mRotDataInfo); 269 } 270 271 } // namespace overlay 272
