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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/dri/screen_manager.h"
#include <xf86drmMode.h>
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"
#include "ui/ozone/platform/dri/dri_surface.h"
#include "ui/ozone/platform/dri/dri_util.h"
#include "ui/ozone/platform/dri/hardware_display_controller.h"
namespace ui {
ScreenManager::ScreenManager(DriWrapper* dri)
: dri_(dri), last_added_widget_(0) {
}
ScreenManager::~ScreenManager() {
}
void ScreenManager::RemoveDisplayController(uint32_t crtc, uint32_t connector) {
HardwareDisplayControllerMap::iterator it =
FindDisplayController(crtc, connector);
if (it != controllers_.end()) {
delete it->second;
controllers_.erase(it);
}
}
bool ScreenManager::ConfigureDisplayController(uint32_t crtc,
uint32_t connector,
const drmModeModeInfo& mode) {
HardwareDisplayControllerMap::iterator it =
FindDisplayController(crtc, connector);
HardwareDisplayController* controller = NULL;
if (it != controllers_.end()) {
if (SameMode(mode, it->second->get_mode()))
return true;
controller = it->second;
controller->UnbindSurfaceFromController();
}
if (it == controllers_.end()) {
controller = new HardwareDisplayController(dri_, connector, crtc);
controllers_.insert(std::make_pair(++last_added_widget_, controller));
}
// Create a surface suitable for the current controller.
scoped_ptr<DriSurface> surface(
CreateSurface(gfx::Size(mode.hdisplay, mode.vdisplay)));
if (!surface->Initialize()) {
LOG(ERROR) << "Failed to initialize surface";
return false;
}
// Bind the surface to the controller. This will register the backing buffers
// with the hardware CRTC such that we can show the buffers and performs the
// initial modeset. The controller takes ownership of the surface.
if (!controller->BindSurfaceToController(surface.Pass(), mode)) {
LOG(ERROR) << "Failed to bind surface to controller";
return false;
}
return true;
}
bool ScreenManager::DisableDisplayController(uint32_t crtc,
uint32_t connector) {
HardwareDisplayControllerMap::iterator it =
FindDisplayController(crtc, connector);
if (it != controllers_.end()) {
it->second->Disable();
return true;
}
return false;
}
base::WeakPtr<HardwareDisplayController> ScreenManager::GetDisplayController(
gfx::AcceleratedWidget widget) {
// TODO(dnicoara): Remove hack once TestScreen uses a simple Ozone display
// configuration reader and ScreenManager is called from there to create the
// one display needed by the content_shell target.
if (controllers_.empty() && last_added_widget_ == 0)
ForceInitializationOfPrimaryDisplay();
HardwareDisplayControllerMap::iterator it = controllers_.find(widget);
if (it != controllers_.end())
return it->second->AsWeakPtr();
return base::WeakPtr<HardwareDisplayController>();
}
ScreenManager::HardwareDisplayControllerMap::iterator
ScreenManager::FindDisplayController(uint32_t crtc, uint32_t connector) {
for (HardwareDisplayControllerMap::iterator it = controllers_.begin();
it != controllers_.end();
++it) {
if (it->second->connector_id() == connector &&
it->second->crtc_id() == crtc)
return it;
}
return controllers_.end();
}
void ScreenManager::ForceInitializationOfPrimaryDisplay() {
drmModeRes* resources = drmModeGetResources(dri_->get_fd());
DCHECK(resources) << "Failed to get DRM resources";
ScopedVector<HardwareDisplayControllerInfo> displays =
GetAvailableDisplayControllerInfos(dri_->get_fd(), resources);
drmModeFreeResources(resources);
CHECK_NE(0u, displays.size());
drmModePropertyRes* dpms =
dri_->GetProperty(displays[0]->connector(), "DPMS");
if (dpms)
dri_->SetProperty(displays[0]->connector()->connector_id,
dpms->prop_id,
DRM_MODE_DPMS_ON);
ConfigureDisplayController(displays[0]->crtc()->crtc_id,
displays[0]->connector()->connector_id,
displays[0]->connector()->modes[0]);
}
DriSurface* ScreenManager::CreateSurface(const gfx::Size& size) {
return new DriSurface(dri_, size);
}
} // namespace ui
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