5bae9f5d35
Read the maximum width mixer can output from drivers and consider this in identifying if dual pipes are required to support a layer. So far above 2K dimensions we are using dual pipes, but 8x39 mixer output can be upto 2560. So there is no need of dual pipes as long as pipe data is less than this limit. Compare layer/panel resolutions against this limit to deduce if there is a need for dual pipes or split. Change-Id: I52e1d28e381327d4f0b00f5ea8547c1e6157313c
276 lines
8.7 KiB
C++
276 lines
8.7 KiB
C++
/*
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* Copyright (c) 2013-2014 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <unistd.h>
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#include <overlay.h>
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#include <overlayUtils.h>
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#include <overlayWriteback.h>
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#include <mdp_version.h>
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#include "hwc_ad.h"
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#include "hwc_utils.h"
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#include "external.h"
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#define DEBUG 0
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using namespace overlay;
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using namespace overlay::utils;
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namespace qhwc {
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//Helper to write data to ad node
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static void adWrite(const int& value) {
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const int wbFbNum = Overlay::getFbForDpy(Overlay::DPY_WRITEBACK);
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char wbFbPath[256];
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snprintf (wbFbPath, sizeof(wbFbPath),
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"/sys/class/graphics/fb%d/ad", wbFbNum);
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int adFd = open(wbFbPath, O_WRONLY);
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if(adFd >= 0) {
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char opStr[4] = "";
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snprintf(opStr, sizeof(opStr), "%d", value);
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ssize_t ret = write(adFd, opStr, strlen(opStr));
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if(ret < 0) {
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ALOGE("%s: Failed to write %d with error %s",
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__func__, value, strerror(errno));
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} else if (ret == 0){
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ALOGE("%s Nothing written to ad", __func__);
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} else {
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ALOGD_IF(DEBUG, "%s: Wrote %d to ad", __func__, value);
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}
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close(adFd);
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} else {
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ALOGE("%s: Failed to open /sys/class/graphics/fb%d/ad with error %s",
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__func__, wbFbNum, strerror(errno));
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}
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}
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//Helper to read data from ad node
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static int adRead() {
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const int wbFbNum = Overlay::getFbForDpy(Overlay::DPY_WRITEBACK);
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int ret = -1;
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char wbFbPath[256];
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snprintf (wbFbPath, sizeof(wbFbPath),
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"/sys/class/graphics/fb%d/ad", wbFbNum);
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int adFd = open(wbFbPath, O_RDONLY);
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if(adFd >= 0) {
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char opStr[4] = {'\0'};
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if(read(adFd, opStr, strlen(opStr)) >= 0) {
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//Should return -1, 0 or 1
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ret = atoi(opStr);
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ALOGD_IF(DEBUG, "%s: Read %d from ad", __func__, ret);
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} else {
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ALOGE("%s: Read from ad node failed with error %s", __func__,
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strerror(errno));
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}
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close(adFd);
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} else {
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ALOGD("%s: /sys/class/graphics/fb%d/ad could not be opened : %s",
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__func__, wbFbNum, strerror(errno));
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}
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return ret;
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}
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AssertiveDisplay::AssertiveDisplay(hwc_context_t *ctx) :
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mTurnedOff(true), mFeatureEnabled(false),
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mDest(overlay::utils::OV_INVALID)
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{
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//Values in ad node:
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//-1 means feature is disabled on device
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// 0 means feature exists but turned off, will be turned on by hwc
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// 1 means feature is turned on by hwc
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// Plus, we do this feature only on split primary displays.
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// Plus, we do this feature only if ro.qcom.ad=2
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char property[PROPERTY_VALUE_MAX];
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const int ENABLED = 2;
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int val = 0;
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if(property_get("ro.qcom.ad", property, "0") > 0) {
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val = atoi(property);
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}
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if(adRead() >= 0 && isDisplaySplit(ctx, HWC_DISPLAY_PRIMARY) &&
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val == ENABLED) {
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ALOGD_IF(DEBUG, "Assertive display feature supported");
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mFeatureEnabled = true;
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// If feature exists but is turned off, set mTurnedOff to true
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mTurnedOff = adRead() > 0 ? false : true;
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}
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}
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void AssertiveDisplay::markDoable(hwc_context_t *ctx,
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const hwc_display_contents_1_t* list) {
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mDoable = false;
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if(mFeatureEnabled &&
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!isSecondaryConnected(ctx) &&
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ctx->listStats[HWC_DISPLAY_PRIMARY].yuvCount == 1) {
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int nYuvIndex = ctx->listStats[HWC_DISPLAY_PRIMARY].yuvIndices[0];
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const hwc_layer_1_t* layer = &list->hwLayers[nYuvIndex];
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private_handle_t *hnd = (private_handle_t *)layer->handle;
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qdutils::MDPVersion& mdpHw = qdutils::MDPVersion::getInstance();
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if(hnd && hnd->width <= mdpHw.getMaxMixerWidth()) {
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mDoable = true;
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}
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}
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}
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void AssertiveDisplay::turnOffAD() {
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if(mFeatureEnabled) {
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if(!mTurnedOff) {
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const int off = 0;
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adWrite(off);
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mTurnedOff = true;
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}
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}
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mDoable = false;
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}
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bool AssertiveDisplay::prepare(hwc_context_t *ctx,
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const hwc_rect_t& crop,
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const Whf& whf,
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const private_handle_t *hnd) {
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if(!isDoable()) {
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//Cleanup one time during this switch
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turnOffAD();
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return false;
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}
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Overlay::PipeSpecs pipeSpecs;
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pipeSpecs.formatClass = Overlay::FORMAT_YUV;
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pipeSpecs.dpy = overlay::Overlay::DPY_WRITEBACK;
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pipeSpecs.fb = false;
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ovutils::eDest dest = ctx->mOverlay->getPipe(pipeSpecs);
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if(dest == OV_INVALID) {
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ALOGE("%s failed: No VG pipe available", __func__);
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mDoable = false;
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return false;
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}
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overlay::Writeback *wb = overlay::Writeback::getInstance();
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//Set Security flag on writeback
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if(isSecureBuffer(hnd)) {
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if(!wb->setSecure(isSecureBuffer(hnd))) {
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ALOGE("Failure in setting WB secure flag for ad");
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return false;
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}
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}
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if(!wb->configureDpyInfo(hnd->width, hnd->height)) {
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ALOGE("%s: config display failed", __func__);
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mDoable = false;
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return false;
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}
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int tmpW, tmpH;
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size_t size;
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int format = ovutils::getHALFormat(wb->getOutputFormat());
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if(format < 0) {
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ALOGE("%s invalid format %d", __func__, format);
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mDoable = false;
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return false;
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}
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size = getBufferSizeAndDimensions(hnd->width, hnd->height,
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format, tmpW, tmpH);
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if(!wb->configureMemory((uint32_t)size)) {
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ALOGE("%s: config memory failed", __func__);
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mDoable = false;
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return false;
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}
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eMdpFlags mdpFlags = OV_MDP_FLAGS_NONE;
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if(isSecureBuffer(hnd)) {
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ovutils::setMdpFlags(mdpFlags,
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ovutils::OV_MDP_SECURE_OVERLAY_SESSION);
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}
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PipeArgs parg(mdpFlags, whf, ZORDER_0, IS_FG_OFF,
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ROT_FLAGS_NONE);
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hwc_rect_t dst = crop; //input same as output
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if(configMdp(ctx->mOverlay, parg, OVERLAY_TRANSFORM_0, crop, dst, NULL,
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dest) < 0) {
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ALOGE("%s: configMdp failed", __func__);
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mDoable = false;
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return false;
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}
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mDest = dest;
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int wbFd = wb->getFbFd();
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if(mFeatureEnabled && wbFd >= 0 &&
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!ctx->mOverlay->validateAndSet(overlay::Overlay::DPY_WRITEBACK, wbFd))
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{
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ALOGE("%s: Failed to validate and set overlay for dpy %d"
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,__FUNCTION__, overlay::Overlay::DPY_WRITEBACK);
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turnOffAD();
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return false;
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}
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// Only turn on AD if there are no errors during configuration stage
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// and if it was previously in OFF state.
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if(mFeatureEnabled && mTurnedOff) {
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//write to sysfs, one time during this switch
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const int on = 1;
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adWrite(on);
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mTurnedOff = false;
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}
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return true;
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}
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bool AssertiveDisplay::draw(hwc_context_t *ctx, int fd, uint32_t offset) {
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if(!isDoable()) {
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return false;
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}
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if (!ctx->mOverlay->queueBuffer(fd, offset, mDest)) {
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ALOGE("%s: queueBuffer failed", __func__);
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return false;
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}
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overlay::Writeback *wb = overlay::Writeback::getInstance();
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if(!wb->writeSync()) {
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return false;
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}
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return true;
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}
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int AssertiveDisplay::getDstFd() const {
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overlay::Writeback *wb = overlay::Writeback::getInstance();
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return wb->getDstFd();
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}
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uint32_t AssertiveDisplay::getDstOffset() const {
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overlay::Writeback *wb = overlay::Writeback::getInstance();
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return wb->getOffset();
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}
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}
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