[Ozone-GBM] Pumb DriWindowDelegate throughout the platform

ui/ozone/platform/dri/hardware_display_controller.cc

 // 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/hardware_display_controller.h"
 
 #include <drm.h>
 #include <errno.h>
 #include <string.h>
 #include <xf86drm.h>
@@ skipping 64 matching lines @@
       crop_rect(crop_rect),
       overlay_plane(0) {
 }
 
 OverlayPlane::~OverlayPlane() {}
 
 HardwareDisplayController::HardwareDisplayController(
     DriWrapper* drm,
     scoped_ptr<CrtcState> state)
     : drm_(drm),
+      is_disabled_(true),
       time_of_last_flip_(0),
       pending_page_flips_(0) {
   crtc_states_.push_back(state.release());
 }
 
 HardwareDisplayController::~HardwareDisplayController() {
   // Reset the cursor.
   UnsetCursor();
 }
 
 bool HardwareDisplayController::Modeset(const OverlayPlane& primary,
                                         drmModeModeInfo mode) {
   TRACE_EVENT0("dri", "HDC::Modeset");
   DCHECK(primary.buffer);
   pending_page_flips_ = 0;
   bool status = true;
-  for (size_t i = 0; i < crtc_states_.size(); ++i)
+  for (size_t i = 0; i < crtc_states_.size(); ++i) {
     status &= ModesetCrtc(primary.buffer, mode, crtc_states_[i]);
+    crtc_states_[i]->set_is_disabled(false);
+  }
 
   // Since a subset of controllers may be actively using |primary|, just keep
   // track of it.
   current_planes_ = std::vector<OverlayPlane>(1, primary);
   pending_planes_.clear();
+  is_disabled_ = false;
   mode_ = mode;
   return status;
 }
 
 bool HardwareDisplayController::Enable() {
   TRACE_EVENT0("dri", "HDC::Enable");
   DCHECK(!current_planes_.empty());
   OverlayPlane primary = GetPrimaryPlane(current_planes_);
   DCHECK(primary.buffer);
   pending_page_flips_ = 0;
   bool status = true;
   for (size_t i = 0; i < crtc_states_.size(); ++i)
     status &= ModesetCrtc(primary.buffer, mode_, crtc_states_[i]);
 
   return status;
 }
 
 void HardwareDisplayController::Disable() {
   TRACE_EVENT0("dri", "HDC::Disable");
   pending_page_flips_ = 0;
   for (size_t i = 0; i < crtc_states_.size(); ++i) {
     drm_->DisableCrtc(crtc_states_[i]->crtc());
     crtc_states_[i]->set_is_disabled(true);
   }
+
+  is_disabled_ = true;
 }
 
 void HardwareDisplayController::QueueOverlayPlane(const OverlayPlane& plane) {
   pending_planes_.push_back(plane);
 }
 
 bool HardwareDisplayController::SchedulePageFlip() {
   DCHECK(!pending_planes_.empty());
   DCHECK_EQ(0u, pending_page_flips_);
 
+  if (is_disabled_)
+    return true;
+
   bool status = true;
-  for (size_t i = 0; i < crtc_states_.size(); ++i) {
-    if (crtc_states_[i]->is_disabled())
-      continue;
-
+  for (size_t i = 0; i < crtc_states_.size(); ++i)
     status &= SchedulePageFlipOnCrtc(pending_planes_, crtc_states_[i]);
-  }
 
   return status;
 }
 
 void HardwareDisplayController::WaitForPageFlipEvent() {
   TRACE_EVENT1("dri", "HDC::WaitForPageFlipEvent",
                "pending_pageflips", pending_page_flips_);
 
   bool has_pending_page_flips = pending_page_flips_ != 0;
   drmEventContext drm_event;
@@ skipping 20 matching lines @@
 
   --pending_page_flips_;
   time_of_last_flip_ =
       static_cast<uint64_t>(seconds) * base::Time::kMicrosecondsPerSecond +
       useconds;
 }
 
 bool HardwareDisplayController::SetCursor(scoped_refptr<ScanoutBuffer> buffer) {
   bool status = true;
   cursor_buffer_ = buffer;
+
+  if (is_disabled_)
+    return true;
+
   for (size_t i = 0; i < crtc_states_.size(); ++i) {
-    if (!crtc_states_[i]->is_disabled())
-      status &= drm_->SetCursor(crtc_states_[i]->crtc(),
-                                buffer->GetHandle(),
-                                buffer->GetSize());
+    status &= drm_->SetCursor(
+        crtc_states_[i]->crtc(), buffer->GetHandle(), buffer->GetSize());
   }
 
   return status;
 }
 
 bool HardwareDisplayController::UnsetCursor() {
   bool status = true;
   cursor_buffer_ = NULL;
   for (size_t i = 0; i < crtc_states_.size(); ++i)
     status &= drm_->SetCursor(crtc_states_[i]->crtc(), 0, gfx::Size());
 
   return status;
 }
 
 bool HardwareDisplayController::MoveCursor(const gfx::Point& location) {
+  if (is_disabled_)
+    return true;
+
   bool status = true;
   for (size_t i = 0; i < crtc_states_.size(); ++i)
-    if (!crtc_states_[i]->is_disabled())
-      status &= drm_->MoveCursor(crtc_states_[i]->crtc(), location);
+    status &= drm_->MoveCursor(crtc_states_[i]->crtc(), location);
 
   return status;
 }
 
 void HardwareDisplayController::AddCrtc(
     scoped_ptr<CrtcState> state) {
   crtc_states_.push_back(state.release());
 }
 
 scoped_ptr<CrtcState> HardwareDisplayController::RemoveCrtc(uint32_t crtc) {
@@ skipping 11 matching lines @@
 }
 
 bool HardwareDisplayController::HasCrtc(uint32_t crtc) const {
   for (size_t i = 0; i < crtc_states_.size(); ++i)
     if (crtc_states_[i]->crtc() == crtc)
       return true;
 
   return false;
 }
 
-bool HardwareDisplayController::HasCrtcs() const {
-  return !crtc_states_.empty();
+bool HardwareDisplayController::IsMirrored() const {
+  return crtc_states_.size() > 1;
 }
 
-void HardwareDisplayController::RemoveMirroredCrtcs() {
-  if (crtc_states_.size() > 1)
-    crtc_states_.erase(crtc_states_.begin() + 1, crtc_states_.end());
+bool HardwareDisplayController::IsDisabled() const {
+  return is_disabled_;
 }
 
 bool HardwareDisplayController::ModesetCrtc(
     const scoped_refptr<ScanoutBuffer>& buffer,
     drmModeModeInfo mode,
     CrtcState* state) {
   if (!drm_->SetCrtc(state->crtc(),
                      buffer->GetFramebufferId(),
                      std::vector<uint32_t>(1, state->connector()),
                      &mode)) {
     LOG(ERROR) << "Failed to modeset: error='" << strerror(errno)
                << "' crtc=" << state->crtc()
                << " connector=" << state->connector()
                << " framebuffer_id=" << buffer->GetFramebufferId()
                << " mode=" << mode.hdisplay << "x" << mode.vdisplay << "@"
                << mode.vrefresh;
     return false;
   }
 
-  state->set_is_disabled(false);
   return true;
 }
 
 bool HardwareDisplayController::SchedulePageFlipOnCrtc(
     const OverlayPlaneList& overlays,
     CrtcState* state) {
   const OverlayPlane& primary = GetPrimaryPlane(overlays);
   DCHECK(primary.buffer);
 
   if (primary.buffer->GetSize() != gfx::Size(mode_.hdisplay, mode_.vdisplay)) {
@@ skipping 32 matching lines @@
                                plane.overlay_plane)) {
       LOG(ERROR) << "Cannot display on overlay: " << strerror(errno);
       return false;
     }
   }
 
   return true;
 }
 
 }  // namespace ui