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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/hardware_display_plane_manager_atomic.h"
#include "base/bind.h"
#include "base/files/platform_file.h"
#include "base/stl_util.h"
#include "base/threading/sequenced_task_runner_handle.h"
#include "ui/ozone/platform/drm/gpu/crtc_controller.h"
#include "ui/ozone/platform/drm/gpu/drm_device.h"
#include "ui/ozone/platform/drm/gpu/hardware_display_plane_atomic.h"
#include "ui/ozone/platform/drm/gpu/scanout_buffer.h"
namespace ui {
namespace {
void AtomicPageFlipCallback(std::vector<base::WeakPtr<CrtcController>> crtcs,
unsigned int frame,
base::TimeTicks timestamp) {
for (auto& crtc : crtcs) {
auto* crtc_ptr = crtc.get();
if (crtc_ptr)
crtc_ptr->OnPageFlipEvent(frame, timestamp);
}
}
} // namespace
HardwareDisplayPlaneManagerAtomic::HardwareDisplayPlaneManagerAtomic() {
}
HardwareDisplayPlaneManagerAtomic::~HardwareDisplayPlaneManagerAtomic() {
}
bool HardwareDisplayPlaneManagerAtomic::Commit(
HardwareDisplayPlaneList* plane_list,
bool test_only) {
for (HardwareDisplayPlane* plane : plane_list->old_plane_list) {
if (!base::ContainsValue(plane_list->plane_list, plane)) {
// This plane is being released, so we need to zero it.
plane->set_in_use(false);
HardwareDisplayPlaneAtomic* atomic_plane =
static_cast<HardwareDisplayPlaneAtomic*>(plane);
atomic_plane->SetPlaneData(
plane_list->atomic_property_set.get(), 0, 0, gfx::Rect(), gfx::Rect(),
gfx::OVERLAY_TRANSFORM_NONE, base::kInvalidPlatformFile);
}
}
std::vector<base::WeakPtr<CrtcController>> crtcs;
for (HardwareDisplayPlane* plane : plane_list->plane_list) {
HardwareDisplayPlaneAtomic* atomic_plane =
static_cast<HardwareDisplayPlaneAtomic*>(plane);
if (crtcs.empty() || crtcs.back().get() != atomic_plane->crtc())
crtcs.push_back(atomic_plane->crtc()->AsWeakPtr());
}
if (test_only) {
for (HardwareDisplayPlane* plane : plane_list->plane_list) {
plane->set_in_use(false);
}
} else {
plane_list->plane_list.swap(plane_list->old_plane_list);
}
uint32_t flags = 0;
if (test_only) {
flags = DRM_MODE_ATOMIC_TEST_ONLY;
} else {
flags = DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_NONBLOCK;
}
if (!drm_->CommitProperties(plane_list->atomic_property_set.get(), flags,
crtcs.size(),
base::Bind(&AtomicPageFlipCallback, crtcs))) {
if (!test_only) {
PLOG(ERROR) << "Failed to commit properties for page flip.";
} else {
VPLOG(2) << "Failed to commit properties for MODE_ATOMIC_TEST_ONLY.";
}
ResetCurrentPlaneList(plane_list);
return false;
}
plane_list->plane_list.clear();
plane_list->atomic_property_set.reset(drmModeAtomicAlloc());
return true;
}
bool HardwareDisplayPlaneManagerAtomic::DisableOverlayPlanes(
HardwareDisplayPlaneList* plane_list) {
for (HardwareDisplayPlane* plane : plane_list->old_plane_list) {
if (plane->type() != HardwareDisplayPlane::kOverlay)
continue;
plane->set_in_use(false);
plane->set_owning_crtc(0);
HardwareDisplayPlaneAtomic* atomic_plane =
static_cast<HardwareDisplayPlaneAtomic*>(plane);
atomic_plane->SetPlaneData(
plane_list->atomic_property_set.get(), 0, 0, gfx::Rect(), gfx::Rect(),
gfx::OVERLAY_TRANSFORM_NONE, base::kInvalidPlatformFile);
}
// The list of crtcs is only useful if flags contains DRM_MODE_PAGE_FLIP_EVENT
// to get the pageflip callback. In this case we don't need to be notified
// at the next page flip, so the list of crtcs can be empty.
std::vector<base::WeakPtr<CrtcController>> crtcs;
bool ret = drm_->CommitProperties(plane_list->atomic_property_set.get(),
DRM_MODE_ATOMIC_NONBLOCK, crtcs.size(),
base::Bind(&AtomicPageFlipCallback, crtcs));
PLOG_IF(ERROR, !ret) << "Failed to commit properties for page flip.";
plane_list->atomic_property_set.reset(drmModeAtomicAlloc());
return ret;
}
bool HardwareDisplayPlaneManagerAtomic::ValidatePrimarySize(
const OverlayPlane& primary,
const drmModeModeInfo& mode) {
// Atomic KMS allows for primary planes that don't match the size of
// the current mode.
return true;
}
void HardwareDisplayPlaneManagerAtomic::RequestPlanesReadyCallback(
const OverlayPlaneList& planes,
base::OnceClosure callback) {
base::SequencedTaskRunnerHandle::Get()->PostTask(FROM_HERE,
std::move(callback));
}
bool HardwareDisplayPlaneManagerAtomic::SetPlaneData(
HardwareDisplayPlaneList* plane_list,
HardwareDisplayPlane* hw_plane,
const OverlayPlane& overlay,
uint32_t crtc_id,
const gfx::Rect& src_rect,
CrtcController* crtc) {
HardwareDisplayPlaneAtomic* atomic_plane =
static_cast<HardwareDisplayPlaneAtomic*>(hw_plane);
uint32_t framebuffer_id = overlay.z_order
? overlay.buffer->GetFramebufferId()
: overlay.buffer->GetOpaqueFramebufferId();
if (!atomic_plane->SetPlaneData(plane_list->atomic_property_set.get(),
crtc_id, framebuffer_id,
overlay.display_bounds, src_rect,
overlay.plane_transform, overlay.fence_fd)) {
LOG(ERROR) << "Failed to set plane properties";
return false;
}
atomic_plane->set_crtc(crtc);
return true;
}
std::unique_ptr<HardwareDisplayPlane>
HardwareDisplayPlaneManagerAtomic::CreatePlane(uint32_t plane_id,
uint32_t possible_crtcs) {
return std::unique_ptr<HardwareDisplayPlane>(
new HardwareDisplayPlaneAtomic(plane_id, possible_crtcs));
}
} // namespace ui
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