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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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.
*/
#define LOG_TAG "hwc-drm-composition"
#include "drmcomposition.h"
#include "drmcrtc.h"
#include "drmplane.h"
#include "drmresources.h"
#include "platform.h"
#include <stdlib.h>
#include <cutils/log.h>
#include <cutils/properties.h>
#include <sw_sync.h>
#include <sync/sync.h>
namespace android {
DrmComposition::DrmComposition(DrmResources *drm, Importer *importer,
Planner *planner)
: drm_(drm), importer_(importer), planner_(planner) {
char use_overlay_planes_prop[PROPERTY_VALUE_MAX];
property_get("hwc.drm.use_overlay_planes", use_overlay_planes_prop, "1");
bool use_overlay_planes = atoi(use_overlay_planes_prop);
for (auto &plane : drm->planes()) {
if (plane->type() == DRM_PLANE_TYPE_PRIMARY)
primary_planes_.push_back(plane.get());
else if (use_overlay_planes && plane->type() == DRM_PLANE_TYPE_OVERLAY)
overlay_planes_.push_back(plane.get());
}
}
int DrmComposition::Init(uint64_t frame_no) {
for (auto &conn : drm_->connectors()) {
int display = conn->display();
composition_map_[display].reset(new DrmDisplayComposition());
if (!composition_map_[display]) {
ALOGE("Failed to allocate new display composition\n");
return -ENOMEM;
}
// If the display hasn't been modeset yet, this will be NULL
DrmCrtc *crtc = drm_->GetCrtcForDisplay(display);
int ret = composition_map_[display]->Init(drm_, crtc, importer_, planner_,
frame_no);
if (ret) {
ALOGE("Failed to init display composition for %d", display);
return ret;
}
}
return 0;
}
int DrmComposition::SetLayers(size_t num_displays,
DrmCompositionDisplayLayersMap *maps) {
int ret = 0;
for (size_t display_index = 0; display_index < num_displays;
display_index++) {
DrmCompositionDisplayLayersMap &map = maps[display_index];
int display = map.display;
if (!drm_->GetConnectorForDisplay(display)) {
ALOGE("Invalid display given to SetLayers %d", display);
continue;
}
ret = composition_map_[display]->SetLayers(
map.layers.data(), map.layers.size(), map.geometry_changed);
if (ret)
return ret;
}
return 0;
}
int DrmComposition::SetDpmsMode(int display, uint32_t dpms_mode) {
return composition_map_[display]->SetDpmsMode(dpms_mode);
}
int DrmComposition::SetDisplayMode(int display, const DrmMode &display_mode) {
return composition_map_[display]->SetDisplayMode(display_mode);
}
std::unique_ptr<DrmDisplayComposition> DrmComposition::TakeDisplayComposition(
int display) {
return std::move(composition_map_[display]);
}
int DrmComposition::Plan(std::map<int, DrmDisplayCompositor> &compositor_map) {
int ret = 0;
for (auto &conn : drm_->connectors()) {
int display = conn->display();
DrmDisplayComposition *comp = GetDisplayComposition(display);
ret = comp->Plan(compositor_map[display].squash_state(), &primary_planes_,
&overlay_planes_);
if (ret) {
ALOGE("Failed to plan composition for dislay %d", display);
return ret;
}
}
return 0;
}
int DrmComposition::DisableUnusedPlanes() {
for (auto &conn : drm_->connectors()) {
int display = conn->display();
DrmDisplayComposition *comp = GetDisplayComposition(display);
/*
* Leave empty compositions alone
* TODO: re-visit this and potentially disable leftover planes after the
* active compositions have gobbled up all they can
*/
if (comp->type() == DRM_COMPOSITION_TYPE_EMPTY ||
comp->type() == DRM_COMPOSITION_TYPE_MODESET)
continue;
DrmCrtc *crtc = drm_->GetCrtcForDisplay(display);
if (!crtc) {
ALOGE("Failed to find crtc for display %d", display);
continue;
}
for (std::vector<DrmPlane *>::iterator iter = primary_planes_.begin();
iter != primary_planes_.end(); ++iter) {
if ((*iter)->GetCrtcSupported(*crtc)) {
comp->AddPlaneDisable(*iter);
primary_planes_.erase(iter);
break;
}
}
for (std::vector<DrmPlane *>::iterator iter = overlay_planes_.begin();
iter != overlay_planes_.end();) {
if ((*iter)->GetCrtcSupported(*crtc)) {
comp->AddPlaneDisable(*iter);
iter = overlay_planes_.erase(iter);
} else {
iter++;
}
}
}
return 0;
}
DrmDisplayComposition *DrmComposition::GetDisplayComposition(int display) {
return composition_map_[display].get();
}
}
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