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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/platform/drm/gpu/crtc_controller.h"
#include "base/logging.h"
#include "base/time/time.h"
#include "ui/ozone/platform/drm/gpu/drm_device.h"
#include "ui/ozone/platform/drm/gpu/page_flip_observer.h"
#include "ui/ozone/platform/drm/gpu/scanout_buffer.h"
namespace ui {
CrtcController::CrtcController(const scoped_refptr<DrmDevice>& drm,
uint32_t crtc,
uint32_t connector)
: drm_(drm),
crtc_(crtc),
connector_(connector),
saved_crtc_(drm->GetCrtc(crtc)),
is_disabled_(true),
page_flip_pending_(false),
time_of_last_flip_(0) {
}
CrtcController::~CrtcController() {
if (!is_disabled_) {
drm_->SetCrtc(saved_crtc_.get(), std::vector<uint32_t>(1, connector_));
UnsetCursor();
}
}
bool CrtcController::Modeset(const OverlayPlane& plane, drmModeModeInfo mode) {
if (!drm_->SetCrtc(crtc_, plane.buffer->GetFramebufferId(),
std::vector<uint32_t>(1, connector_), &mode)) {
PLOG(ERROR) << "Failed to modeset: crtc=" << crtc_
<< " connector=" << connector_
<< " framebuffer_id=" << plane.buffer->GetFramebufferId()
<< " mode=" << mode.hdisplay << "x" << mode.vdisplay << "@"
<< mode.vrefresh;
return false;
}
mode_ = mode;
pending_planes_.clear();
is_disabled_ = false;
// drmModeSetCrtc has an immediate effect, so we can assume that the current
// planes have been updated. However if a page flip is still pending, set the
// pending planes to the same values so that the callback keeps the correct
// state.
current_planes_ = std::vector<OverlayPlane>(1, plane);
if (page_flip_pending_)
pending_planes_ = current_planes_;
return true;
}
bool CrtcController::Disable() {
if (is_disabled_)
return true;
is_disabled_ = true;
return drm_->DisableCrtc(crtc_);
}
bool CrtcController::SchedulePageFlip(HardwareDisplayPlaneList* plane_list,
const OverlayPlaneList& overlays) {
DCHECK(!page_flip_pending_);
DCHECK(!is_disabled_);
const OverlayPlane* primary = OverlayPlane::GetPrimaryPlane(overlays);
if (!primary) {
LOG(ERROR) << "No primary plane to display on crtc " << crtc_;
FOR_EACH_OBSERVER(PageFlipObserver, observers_, OnPageFlipEvent());
return true;
}
DCHECK(primary->buffer.get());
if (primary->buffer->GetSize() != gfx::Size(mode_.hdisplay, mode_.vdisplay)) {
VLOG(2) << "Trying to pageflip a buffer with the wrong size. Expected "
<< mode_.hdisplay << "x" << mode_.vdisplay << " got "
<< primary->buffer->GetSize().ToString() << " for"
<< " crtc=" << crtc_ << " connector=" << connector_;
FOR_EACH_OBSERVER(PageFlipObserver, observers_, OnPageFlipEvent());
return true;
}
if (!drm_->plane_manager()->AssignOverlayPlanes(plane_list, overlays, crtc_,
this)) {
PLOG(ERROR) << "Failed to assign overlay planes for crtc " << crtc_;
return false;
}
page_flip_pending_ = true;
pending_planes_ = overlays;
return true;
}
void CrtcController::PageFlipFailed() {
pending_planes_.clear();
page_flip_pending_ = false;
}
void CrtcController::OnPageFlipEvent(unsigned int frame,
unsigned int seconds,
unsigned int useconds) {
page_flip_pending_ = false;
time_of_last_flip_ =
static_cast<uint64_t>(seconds) * base::Time::kMicrosecondsPerSecond +
useconds;
current_planes_.clear();
current_planes_.swap(pending_planes_);
FOR_EACH_OBSERVER(PageFlipObserver, observers_, OnPageFlipEvent());
}
bool CrtcController::SetCursor(const scoped_refptr<ScanoutBuffer>& buffer) {
DCHECK(!is_disabled_);
cursor_buffer_ = buffer;
return drm_->SetCursor(crtc_, buffer->GetHandle(), buffer->GetSize());
}
bool CrtcController::UnsetCursor() {
bool state = drm_->SetCursor(crtc_, 0, gfx::Size());
cursor_buffer_ = NULL;
return state;
}
bool CrtcController::MoveCursor(const gfx::Point& location) {
DCHECK(!is_disabled_);
return drm_->MoveCursor(crtc_, location);
}
void CrtcController::AddObserver(PageFlipObserver* observer) {
observers_.AddObserver(observer);
}
void CrtcController::RemoveObserver(PageFlipObserver* observer) {
observers_.RemoveObserver(observer);
}
} // namespace ui
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