msm8909/liboverlay/overlayMdpRot.cpp - platform/hardware/qcom/display - Git at Google

 /*
  * Copyright (C) 2008 The Android Open Source Project
  * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
  * Not a Contribution, Apache license notifications and license are retained
  * for attribution purposes only.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
 */

 #include <math.h>
 #include "overlayUtils.h"
 #include "overlayRotator.h"
 #include "gr.h"

 namespace ovutils = overlay::utils;

 namespace overlay {

 MdpRot::MdpRot() {
     reset();
     init();
 }

 MdpRot::~MdpRot() { close(); }

 bool MdpRot::enabled() const { return mRotImgInfo.enable; }

 void MdpRot::setRotations(uint32_t r) { mRotImgInfo.rotations = (uint8_t)r; }

 int MdpRot::getSrcMemId() const {
     return mRotDataInfo.src.memory_id;
 }

 int MdpRot::getDstMemId() const {
     return mRotDataInfo.dst.memory_id;
 }

 uint32_t MdpRot::getSrcOffset() const {
     return mRotDataInfo.src.offset;
 }

 uint32_t MdpRot::getDstOffset() const {
     return mRotDataInfo.dst.offset;
 }

 uint32_t MdpRot::getDstFormat() const {
     return mRotImgInfo.dst.format;
 }

 //Added for completeness. Not expected to be called.
 utils::Whf MdpRot::getDstWhf() const {
     int alW = 0, alH = 0;
     int halFormat = ovutils::getHALFormat(mRotImgInfo.dst.format);
     getBufferSizeAndDimensions(mRotImgInfo.dst.width, mRotImgInfo.dst.height,
             halFormat, alW, alH);
     return utils::Whf(alW, alH, mRotImgInfo.dst.format);
 }

 //Added for completeness. Not expected to be called.
 utils::Dim MdpRot::getDstDimensions() const {
     int alW = 0, alH = 0;
     int halFormat = ovutils::getHALFormat(mRotImgInfo.dst.format);
     getBufferSizeAndDimensions(mRotImgInfo.dst.width, mRotImgInfo.dst.height,
             halFormat, alW, alH);
     return utils::Dim(0, 0, alW, alH);
 }

 uint32_t MdpRot::getSessId() const { return mRotImgInfo.session_id; }

 void MdpRot::setDownscale(int ds) {
     if ((utils::ROT_DS_EIGHTH == ds) && (mRotImgInfo.src_rect.h & 0xF)) {
         // Ensure src_rect.h is a multiple of 16 for 1/8 downscaling.
         // This is an undocumented MDP Rotator constraint.
         mRotImgInfo.src_rect.h = utils::aligndown(mRotImgInfo.src_rect.h, 16);
     }
     mRotImgInfo.downscale_ratio = ds;
 }

 void MdpRot::save() {
     mLSRotImgInfo = mRotImgInfo;
 }

 bool MdpRot::rotConfChanged() const {
     // 0 means same
     if(0 == ::memcmp(&mRotImgInfo, &mLSRotImgInfo,
                 sizeof (msm_rotator_img_info))) {
         return false;
     }
     return true;
 }

 bool MdpRot::init()
 {
     if(!mFd.open(Res::rotPath, O_RDWR)){
         ALOGE("MdpRot failed to init %s", Res::rotPath);
         return false;
     }
     return true;
 }

 void MdpRot::setSource(const overlay::utils::Whf& awhf) {
     utils::Whf whf(awhf);
     mRotImgInfo.src.format = whf.format;

     mRotImgInfo.src.width = whf.w;
     mRotImgInfo.src.height = whf.h;

     mRotImgInfo.src_rect.w = whf.w;
     mRotImgInfo.src_rect.h = whf.h;

     mRotImgInfo.dst.width = whf.w;
     mRotImgInfo.dst.height = whf.h;
 }

 void MdpRot::setCrop(const utils::Dim& /*crop*/) {
     // NO-OP for non-mdss rotator due to possible h/w limitations
 }

 void MdpRot::setFlags(const utils::eMdpFlags& flags) {
     mRotImgInfo.secure = 0;
     if(flags & utils::OV_MDP_SECURE_OVERLAY_SESSION)
         mRotImgInfo.secure = 1;
 }

 void MdpRot::setTransform(const utils::eTransform& rot)
 {
     int r = utils::getMdpOrient(rot);
     setRotations(r);
     mOrientation = static_cast<utils::eTransform>(r);
     ALOGE_IF(DEBUG_OVERLAY, "%s: r=%d", __FUNCTION__, r);
 }

 void MdpRot::doTransform() {
     if(mOrientation & utils::OVERLAY_TRANSFORM_ROT_90)
         utils::swap(mRotImgInfo.dst.width, mRotImgInfo.dst.height);
 }

 bool MdpRot::commit() {
     doTransform();
     if(rotConfChanged()) {
         mRotImgInfo.enable = 1;
         if(!overlay::mdp_wrapper::startRotator(mFd.getFD(), mRotImgInfo)) {
             ALOGE("MdpRot commit failed");
             dump();
             mRotImgInfo.enable = 0;
             return false;
         }
         mRotDataInfo.session_id = mRotImgInfo.session_id;
     }
     return true;
 }

 uint32_t MdpRot::calcOutputBufSize() {
     ovutils::Whf destWhf(mRotImgInfo.dst.width,
             mRotImgInfo.dst.height, mRotImgInfo.dst.format);
     return Rotator::calcOutputBufSize(destWhf);
 }

 bool MdpRot::open_i(uint32_t numbufs, uint32_t bufsz)
 {
     OvMem mem;

     OVASSERT(MAP_FAILED == mem.addr(), "MAP failed in open_i");

     if(!mem.open(numbufs, bufsz, mRotImgInfo.secure)){
         ALOGE("%s: Failed to open", __func__);
         mem.close();
         return false;
     }

     OVASSERT(MAP_FAILED != mem.addr(), "MAP failed");
     OVASSERT(mem.getFD() != -1, "getFd is -1");

     mRotDataInfo.dst.memory_id = mem.getFD();
     mRotDataInfo.dst.offset = 0;
     mMem.mem = mem;
     return true;
 }

 bool MdpRot::close() {
     bool success = true;
     if(mFd.valid() && (getSessId() != 0)) {
         if(!mdp_wrapper::endRotator(mFd.getFD(), getSessId())) {
             ALOGE("Mdp Rot error endRotator, fd=%d sessId=%u",
                     mFd.getFD(), getSessId());
             success = false;
         }
     }
     if (!mFd.close()) {
         ALOGE("Mdp Rot error closing fd");
         success = false;
     }
     if (!mMem.close()) {
         ALOGE("Mdp Rot error closing mem");
         success = false;
     }
     reset();
     return success;
 }

 bool MdpRot::remap(uint32_t numbufs) {
     // if current size changed, remap
     uint32_t opBufSize = calcOutputBufSize();
     if(opBufSize == mMem.size()) {
         ALOGE_IF(DEBUG_OVERLAY, "%s: same size %d", __FUNCTION__, opBufSize);
         return true;
     }

     if(!mMem.close()) {
         ALOGE("%s error in closing prev rot mem", __FUNCTION__);
         return false;
     }

     ALOGE_IF(DEBUG_OVERLAY, "%s: size changed - remapping", __FUNCTION__);

     if(!open_i(numbufs, opBufSize)) {
         ALOGE("%s Error could not open", __FUNCTION__);
         return false;
     }

     for (uint32_t i = 0; i < numbufs; ++i) {
         mMem.mRotOffset[i] = i * opBufSize;
     }

     return true;
 }

 void MdpRot::reset() {
     ovutils::memset0(mRotImgInfo);
     ovutils::memset0(mLSRotImgInfo);
     ovutils::memset0(mRotDataInfo);
     ovutils::memset0(mMem.mRotOffset);
     mMem.mCurrIndex = 0;
     mOrientation = utils::OVERLAY_TRANSFORM_0;
 }

 bool MdpRot::queueBuffer(int fd, uint32_t offset) {
     if(enabled() and (not isRotCached(fd,offset))) {
         int prev_fd = getSrcMemId();
         uint32_t prev_offset = getSrcOffset();

         mRotDataInfo.src.memory_id = fd;
         mRotDataInfo.src.offset = offset;

         if(false == remap(RotMem::ROT_NUM_BUFS)) {
             ALOGE("%s Remap failed, not queueing", __FUNCTION__);
             return false;
         }

         mRotDataInfo.dst.offset =
                 mMem.mRotOffset[mMem.mCurrIndex];

         if(!overlay::mdp_wrapper::rotate(mFd.getFD(), mRotDataInfo)) {
             ALOGE("MdpRot failed rotate");
             dump();
             mRotDataInfo.src.memory_id = prev_fd;
             mRotDataInfo.src.offset = prev_offset;
             return false;
         }
         save();
         mMem.mCurrIndex =
                 (mMem.mCurrIndex + 1) % mMem.mem.numBufs();
     }
     return true;
 }

 void MdpRot::dump() const {
     ALOGE("== Dump MdpRot start ==");
     mFd.dump();
     mMem.mem.dump();
     mdp_wrapper::dump("mRotImgInfo", mRotImgInfo);
     mdp_wrapper::dump("mRotDataInfo", mRotDataInfo);
     ALOGE("== Dump MdpRot end ==");
 }

 void MdpRot::getDump(char *buf, size_t len) const {
     ovutils::getDump(buf, len, "MdpRotCtrl", mRotImgInfo);
     ovutils::getDump(buf, len, "MdpRotData", mRotDataInfo);
 }

 int MdpRot::getDownscaleFactor(const int& src_w, const int& src_h,
         const int& dst_w, const int& dst_h, const uint32_t& /*mdpFormat*/,
         const bool& /*isInterlaced*/) {
     int dscale_factor = utils::ROT_DS_NONE;
     // We need this check to engage the rotator whenever possible to assist MDP
     // in performing video downscale.
     // This saves bandwidth and avoids causing the driver to make too many panel
     // -mode switches between BLT (writeback) and non-BLT (Direct) modes.
     // Use-case: Video playback [with downscaling and rotation].
     if (dst_w && dst_h)
     {
         float fDscale =  (float)(src_w * src_h) / (float)(dst_w * dst_h);
         uint32_t dscale = (int)sqrtf(fDscale);

         if(dscale < 2) {
             // Down-scale to > 50% of orig.
             dscale_factor = utils::ROT_DS_NONE;
         } else if(dscale < 4) {
             // Down-scale to between > 25% to <= 50% of orig.
             dscale_factor = utils::ROT_DS_HALF;
         } else if(dscale < 8) {
             // Down-scale to between > 12.5% to <= 25% of orig.
             dscale_factor = utils::ROT_DS_FOURTH;
         } else {
             // Down-scale to <= 12.5% of orig.
             dscale_factor = utils::ROT_DS_EIGHTH;
         }
     }
     return dscale_factor;
 }

 } // namespace overlay
	/*
	* Copyright (C) 2008 The Android Open Source Project
	* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
	* Not a Contribution, Apache license notifications and license are retained
	* for attribution purposes only.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include <math.h>
	#include "overlayUtils.h"
	#include "overlayRotator.h"
	#include "gr.h"

	namespace ovutils = overlay::utils;

	namespace overlay {

	MdpRot::MdpRot() {
	reset();
	init();
	}

	MdpRot::~MdpRot() { close(); }

	bool MdpRot::enabled() const { return mRotImgInfo.enable; }

	void MdpRot::setRotations(uint32_t r) { mRotImgInfo.rotations = (uint8_t)r; }

	int MdpRot::getSrcMemId() const {
	return mRotDataInfo.src.memory_id;
	}

	int MdpRot::getDstMemId() const {
	return mRotDataInfo.dst.memory_id;
	}

	uint32_t MdpRot::getSrcOffset() const {
	return mRotDataInfo.src.offset;
	}

	uint32_t MdpRot::getDstOffset() const {
	return mRotDataInfo.dst.offset;
	}

	uint32_t MdpRot::getDstFormat() const {
	return mRotImgInfo.dst.format;
	}

	//Added for completeness. Not expected to be called.
	utils::Whf MdpRot::getDstWhf() const {
	int alW = 0, alH = 0;
	int halFormat = ovutils::getHALFormat(mRotImgInfo.dst.format);
	getBufferSizeAndDimensions(mRotImgInfo.dst.width, mRotImgInfo.dst.height,
	halFormat, alW, alH);
	return utils::Whf(alW, alH, mRotImgInfo.dst.format);
	}

	//Added for completeness. Not expected to be called.
	utils::Dim MdpRot::getDstDimensions() const {
	int alW = 0, alH = 0;
	int halFormat = ovutils::getHALFormat(mRotImgInfo.dst.format);
	getBufferSizeAndDimensions(mRotImgInfo.dst.width, mRotImgInfo.dst.height,
	halFormat, alW, alH);
	return utils::Dim(0, 0, alW, alH);
	}

	uint32_t MdpRot::getSessId() const { return mRotImgInfo.session_id; }

	void MdpRot::setDownscale(int ds) {
	if ((utils::ROT_DS_EIGHTH == ds) && (mRotImgInfo.src_rect.h & 0xF)) {
	// Ensure src_rect.h is a multiple of 16 for 1/8 downscaling.
	// This is an undocumented MDP Rotator constraint.
	mRotImgInfo.src_rect.h = utils::aligndown(mRotImgInfo.src_rect.h, 16);
	}
	mRotImgInfo.downscale_ratio = ds;
	}

	void MdpRot::save() {
	mLSRotImgInfo = mRotImgInfo;
	}

	bool MdpRot::rotConfChanged() const {
	// 0 means same
	if(0 == ::memcmp(&mRotImgInfo, &mLSRotImgInfo,
	sizeof (msm_rotator_img_info))) {
	return false;
	}
	return true;
	}

	bool MdpRot::init()
	{
	if(!mFd.open(Res::rotPath, O_RDWR)){
	ALOGE("MdpRot failed to init %s", Res::rotPath);
	return false;
	}
	return true;
	}

	void MdpRot::setSource(const overlay::utils::Whf& awhf) {
	utils::Whf whf(awhf);
	mRotImgInfo.src.format = whf.format;

	mRotImgInfo.src.width = whf.w;
	mRotImgInfo.src.height = whf.h;

	mRotImgInfo.src_rect.w = whf.w;
	mRotImgInfo.src_rect.h = whf.h;

	mRotImgInfo.dst.width = whf.w;
	mRotImgInfo.dst.height = whf.h;
	}

	void MdpRot::setCrop(const utils::Dim& /crop/) {
	// NO-OP for non-mdss rotator due to possible h/w limitations
	}

	void MdpRot::setFlags(const utils::eMdpFlags& flags) {
	mRotImgInfo.secure = 0;
	if(flags & utils::OV_MDP_SECURE_OVERLAY_SESSION)
	mRotImgInfo.secure = 1;
	}

	void MdpRot::setTransform(const utils::eTransform& rot)
	{
	int r = utils::getMdpOrient(rot);
	setRotations(r);
	mOrientation = static_cast<utils::eTransform>(r);
	ALOGE_IF(DEBUG_OVERLAY, "%s: r=%d", __FUNCTION__, r);
	}

	void MdpRot::doTransform() {
	if(mOrientation & utils::OVERLAY_TRANSFORM_ROT_90)
	utils::swap(mRotImgInfo.dst.width, mRotImgInfo.dst.height);
	}

	bool MdpRot::commit() {
	doTransform();
	if(rotConfChanged()) {
	mRotImgInfo.enable = 1;
	if(!overlay::mdp_wrapper::startRotator(mFd.getFD(), mRotImgInfo)) {
	ALOGE("MdpRot commit failed");
	dump();
	mRotImgInfo.enable = 0;
	return false;
	}
	mRotDataInfo.session_id = mRotImgInfo.session_id;
	}
	return true;
	}

	uint32_t MdpRot::calcOutputBufSize() {
	ovutils::Whf destWhf(mRotImgInfo.dst.width,
	mRotImgInfo.dst.height, mRotImgInfo.dst.format);
	return Rotator::calcOutputBufSize(destWhf);
	}

	bool MdpRot::open_i(uint32_t numbufs, uint32_t bufsz)
	{
	OvMem mem;

	OVASSERT(MAP_FAILED == mem.addr(), "MAP failed in open_i");

	if(!mem.open(numbufs, bufsz, mRotImgInfo.secure)){
	ALOGE("%s: Failed to open", __func__);
	mem.close();
	return false;
	}

	OVASSERT(MAP_FAILED != mem.addr(), "MAP failed");
	OVASSERT(mem.getFD() != -1, "getFd is -1");

	mRotDataInfo.dst.memory_id = mem.getFD();
	mRotDataInfo.dst.offset = 0;
	mMem.mem = mem;
	return true;
	}

	bool MdpRot::close() {
	bool success = true;
	if(mFd.valid() && (getSessId() != 0)) {
	if(!mdp_wrapper::endRotator(mFd.getFD(), getSessId())) {
	ALOGE("Mdp Rot error endRotator, fd=%d sessId=%u",
	mFd.getFD(), getSessId());
	success = false;
	}
	}
	if (!mFd.close()) {
	ALOGE("Mdp Rot error closing fd");
	success = false;
	}
	if (!mMem.close()) {
	ALOGE("Mdp Rot error closing mem");
	success = false;
	}
	reset();
	return success;
	}

	bool MdpRot::remap(uint32_t numbufs) {
	// if current size changed, remap
	uint32_t opBufSize = calcOutputBufSize();
	if(opBufSize == mMem.size()) {
	ALOGE_IF(DEBUG_OVERLAY, "%s: same size %d", __FUNCTION__, opBufSize);
	return true;
	}

	if(!mMem.close()) {
	ALOGE("%s error in closing prev rot mem", __FUNCTION__);
	return false;
	}

	ALOGE_IF(DEBUG_OVERLAY, "%s: size changed - remapping", __FUNCTION__);

	if(!open_i(numbufs, opBufSize)) {
	ALOGE("%s Error could not open", __FUNCTION__);
	return false;
	}

	for (uint32_t i = 0; i < numbufs; ++i) {
	mMem.mRotOffset[i] = i * opBufSize;
	}

	return true;
	}

	void MdpRot::reset() {
	ovutils::memset0(mRotImgInfo);
	ovutils::memset0(mLSRotImgInfo);
	ovutils::memset0(mRotDataInfo);
	ovutils::memset0(mMem.mRotOffset);
	mMem.mCurrIndex = 0;
	mOrientation = utils::OVERLAY_TRANSFORM_0;
	}

	bool MdpRot::queueBuffer(int fd, uint32_t offset) {
	if(enabled() and (not isRotCached(fd,offset))) {
	int prev_fd = getSrcMemId();
	uint32_t prev_offset = getSrcOffset();

	mRotDataInfo.src.memory_id = fd;
	mRotDataInfo.src.offset = offset;

	if(false == remap(RotMem::ROT_NUM_BUFS)) {
	ALOGE("%s Remap failed, not queueing", __FUNCTION__);
	return false;
	}

	mRotDataInfo.dst.offset =
	mMem.mRotOffset[mMem.mCurrIndex];

	if(!overlay::mdp_wrapper::rotate(mFd.getFD(), mRotDataInfo)) {
	ALOGE("MdpRot failed rotate");
	dump();
	mRotDataInfo.src.memory_id = prev_fd;
	mRotDataInfo.src.offset = prev_offset;
	return false;
	}
	save();
	mMem.mCurrIndex =
	(mMem.mCurrIndex + 1) % mMem.mem.numBufs();
	}
	return true;
	}

	void MdpRot::dump() const {
	ALOGE("== Dump MdpRot start ==");
	mFd.dump();
	mMem.mem.dump();
	mdp_wrapper::dump("mRotImgInfo", mRotImgInfo);
	mdp_wrapper::dump("mRotDataInfo", mRotDataInfo);
	ALOGE("== Dump MdpRot end ==");
	}

	void MdpRot::getDump(char *buf, size_t len) const {
	ovutils::getDump(buf, len, "MdpRotCtrl", mRotImgInfo);
	ovutils::getDump(buf, len, "MdpRotData", mRotDataInfo);
	}

	int MdpRot::getDownscaleFactor(const int& src_w, const int& src_h,
	const int& dst_w, const int& dst_h, const uint32_t& /mdpFormat/,
	const bool& /isInterlaced/) {
	int dscale_factor = utils::ROT_DS_NONE;
	// We need this check to engage the rotator whenever possible to assist MDP
	// in performing video downscale.
	// This saves bandwidth and avoids causing the driver to make too many panel
	// -mode switches between BLT (writeback) and non-BLT (Direct) modes.
	// Use-case: Video playback [with downscaling and rotation].
	if (dst_w && dst_h)
	{
	float fDscale = (float)(src_w * src_h) / (float)(dst_w * dst_h);
	uint32_t dscale = (int)sqrtf(fDscale);

	if(dscale < 2) {
	// Down-scale to > 50% of orig.
	dscale_factor = utils::ROT_DS_NONE;
	} else if(dscale < 4) {
	// Down-scale to between > 25% to <= 50% of orig.
	dscale_factor = utils::ROT_DS_HALF;
	} else if(dscale < 8) {
	// Down-scale to between > 12.5% to <= 25% of orig.
	dscale_factor = utils::ROT_DS_FOURTH;
	} else {
	// Down-scale to <= 12.5% of orig.
	dscale_factor = utils::ROT_DS_EIGHTH;
	}
	}
	return dscale_factor;
	}

	} // namespace overlay