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::setCrop(const utils::Dim& crop) { 98 // NO-OP for non-mdss rotator due to possible h/w limitations 99 } 100 101 void MdpRot::setFlags(const utils::eMdpFlags& flags) { 102 mRotImgInfo.secure = 0; 103 if(flags & utils::OV_MDP_SECURE_OVERLAY_SESSION) 104 mRotImgInfo.secure = 1; 105 } 106 107 void MdpRot::setTransform(const utils::eTransform& rot) 108 { 109 int r = utils::getMdpOrient(rot); 110 setRotations(r); 111 mOrientation = static_cast<utils::eTransform>(r); 112 ALOGE_IF(DEBUG_OVERLAY, "%s: r=%d", __FUNCTION__, r); 113 } 114 115 void MdpRot::doTransform() { 116 if(mOrientation & utils::OVERLAY_TRANSFORM_ROT_90) 117 utils::swap(mRotImgInfo.dst.width, mRotImgInfo.dst.height); 118 } 119 120 bool MdpRot::commit() { 121 doTransform(); 122 if(rotConfChanged()) { 123 mRotImgInfo.enable = 1; 124 if(!overlay::mdp_wrapper::startRotator(mFd.getFD(), mRotImgInfo)) { 125 ALOGE("MdpRot commit failed"); 126 dump(); 127 mRotImgInfo.enable = 0; 128 return false; 129 } 130 save(); 131 mRotDataInfo.session_id = mRotImgInfo.session_id; 132 } 133 return true; 134 } 135 136 uint32_t MdpRot::calcOutputBufSize() { 137 ovutils::Whf destWhf(mRotImgInfo.dst.width, 138 mRotImgInfo.dst.height, mRotImgInfo.dst.format); 139 return Rotator::calcOutputBufSize(destWhf); 140 } 141 142 bool MdpRot::open_i(uint32_t numbufs, uint32_t bufsz) 143 { 144 OvMem mem; 145 146 OVASSERT(MAP_FAILED == mem.addr(), "MAP failed in open_i"); 147 148 if(!mem.open(numbufs, bufsz, mRotImgInfo.secure)){ 149 ALOGE("%s: Failed to open", __func__); 150 mem.close(); 151 return false; 152 } 153 154 OVASSERT(MAP_FAILED != mem.addr(), "MAP failed"); 155 OVASSERT(mem.getFD() != -1, "getFd is -1"); 156 157 mRotDataInfo.dst.memory_id = mem.getFD(); 158 mRotDataInfo.dst.offset = 0; 159 mMem.curr().m = mem; 160 return true; 161 } 162 163 bool MdpRot::close() { 164 bool success = true; 165 if(mFd.valid() && (getSessId() != 0)) { 166 if(!mdp_wrapper::endRotator(mFd.getFD(), getSessId())) { 167 ALOGE("Mdp Rot error endRotator, fd=%d sessId=%u", 168 mFd.getFD(), getSessId()); 169 success = false; 170 } 171 } 172 if (!mFd.close()) { 173 ALOGE("Mdp Rot error closing fd"); 174 success = false; 175 } 176 if (!mMem.close()) { 177 ALOGE("Mdp Rot error closing mem"); 178 success = false; 179 } 180 reset(); 181 return success; 182 } 183 184 bool MdpRot::remap(uint32_t numbufs) { 185 // if current size changed, remap 186 uint32_t opBufSize = calcOutputBufSize(); 187 if(opBufSize == mMem.curr().size()) { 188 ALOGE_IF(DEBUG_OVERLAY, "%s: same size %d", __FUNCTION__, opBufSize); 189 return true; 190 } 191 192 ALOGE_IF(DEBUG_OVERLAY, "%s: size changed - remapping", __FUNCTION__); 193 OVASSERT(!mMem.prev().valid(), "Prev should not be valid"); 194 195 // ++mMem will make curr to be prev, and prev will be curr 196 ++mMem; 197 if(!open_i(numbufs, opBufSize)) { 198 ALOGE("%s Error could not open", __FUNCTION__); 199 return false; 200 } 201 for (uint32_t i = 0; i < numbufs; ++i) { 202 mMem.curr().mRotOffset[i] = i * opBufSize; 203 } 204 return true; 205 } 206 207 void MdpRot::reset() { 208 ovutils::memset0(mRotImgInfo); 209 ovutils::memset0(mLSRotImgInfo); 210 ovutils::memset0(mRotDataInfo); 211 ovutils::memset0(mMem.curr().mRotOffset); 212 ovutils::memset0(mMem.prev().mRotOffset); 213 mMem.curr().mCurrOffset = 0; 214 mMem.prev().mCurrOffset = 0; 215 mOrientation = utils::OVERLAY_TRANSFORM_0; 216 } 217 218 bool MdpRot::queueBuffer(int fd, uint32_t offset) { 219 if(enabled()) { 220 mRotDataInfo.src.memory_id = fd; 221 mRotDataInfo.src.offset = offset; 222 223 remap(RotMem::Mem::ROT_NUM_BUFS); 224 OVASSERT(mMem.curr().m.numBufs(), 225 "queueBuffer numbufs is 0"); 226 mRotDataInfo.dst.offset = 227 mMem.curr().mRotOffset[mMem.curr().mCurrOffset]; 228 mMem.curr().mCurrOffset = 229 (mMem.curr().mCurrOffset + 1) % mMem.curr().m.numBufs(); 230 231 if(!overlay::mdp_wrapper::rotate(mFd.getFD(), mRotDataInfo)) { 232 ALOGE("MdpRot failed rotate"); 233 dump(); 234 return false; 235 } 236 237 // if the prev mem is valid, we need to close 238 if(mMem.prev().valid()) { 239 // FIXME if no wait for vsync the above 240 // play will return immediatly and might cause 241 // tearing when prev.close is called. 242 if(!mMem.prev().close()) { 243 ALOGE("%s error in closing prev rot mem", __FUNCTION__); 244 return false; 245 } 246 } 247 } 248 return true; 249 } 250 251 void MdpRot::dump() const { 252 ALOGE("== Dump MdpRot start =="); 253 mFd.dump(); 254 mMem.curr().m.dump(); 255 mdp_wrapper::dump("mRotImgInfo", mRotImgInfo); 256 mdp_wrapper::dump("mRotDataInfo", mRotDataInfo); 257 ALOGE("== Dump MdpRot end =="); 258 } 259 260 void MdpRot::getDump(char *buf, size_t len) const { 261 ovutils::getDump(buf, len, "MdpRotCtrl", mRotImgInfo); 262 ovutils::getDump(buf, len, "MdpRotData", mRotDataInfo); 263 } 264 265 } // namespace overlay 266