WIP: working copy-no-compositor path

chrome/browser/android/vr_shell/vr_shell_gl.h

 // Copyright 2016 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.
 
 #ifndef CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_GL_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_GL_H_
 
+#include <deque>
+#include <iomanip>
+#include <list>
 #include <memory>
 
 #include "base/cancelable_callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "device/vr/android/gvr/gvr_delegate.h"
+#include "gpu/ipc/common/surface_handle.h"
 #include "third_party/gvr-android-sdk/src/libraries/headers/vr/gvr/capi/include/gvr.h"
 #include "third_party/gvr-android-sdk/src/libraries/headers/vr/gvr/capi/include/gvr_types.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace base {
 class ListValue;
 }
 
 namespace blink {
 class WebInputEvent;
@@ skipping 29 matching lines @@
       const base::WeakPtr<VrShell>& weak_vr_shell,
       const base::WeakPtr<VrInputManager>& content_input_manager,
       const base::WeakPtr<VrInputManager>& ui_input_manager,
       scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner,
       gvr_context* gvr_api,
       bool initially_web_vr);
   ~VrShellGl();
 
   bool Initialize();
 
-  void DrawFrame();
+  void DrawFrame(uint32_t pose_index);
 
   void OnTriggerEvent();
   void OnPause();
   void OnResume();
 
   void SetWebVrMode(bool enabled);
   void ContentBoundsChanged(int width, int height);
   void ContentPhysicalBoundsChanged(int width, int height);
   void UIBoundsChanged(int width, int height);
   void UIPhysicalBoundsChanged(int width, int height);
   base::WeakPtr<VrShellGl> GetWeakPtr();
 
-  void UpdateWebVRTextureBounds(const gvr::Rectf& left_bounds,
+  void UpdateWebVRTextureBounds(uint32_t for_pose_index,
+                                const gvr::Rectf& left_bounds,
                                 const gvr::Rectf& right_bounds);
+  void SubmitWebVRFrame(int32_t surface_handle, const device::mojom::VRPosePtr& pose);
   gvr::GvrApi* gvr_api();
-  void SetGvrPoseForWebVr(const gvr::Mat4f& pose, uint32_t pose_num);
-  gvr::Sizei GetWebVRCompositorSurfaceSize();
+  void SetWebVRGvrPose(const gvr::Mat4f& pose, uint32_t pose_index,
+                       int64_t pose_time_nanos);
+  void GetWebVRSurfaceHandle(int width, int height, const device::mojom::VRDisplay::GetSurfaceHandleCallback& callback);
 
   void UpdateScene(std::unique_ptr<base::ListValue> commands);
 
  private:
   bool InitializeGl();
   void GvrInit(gvr_context* gvr_api);
   void InitializeRenderer();
   void DrawVrShell(const gvr::Mat4f& head_pose, gvr::Frame &frame);
   void DrawUiView(const gvr::Mat4f* head_pose,
                   const std::vector<const ContentRectangle*>& elements,
                   const gvr::Sizei& render_size, int viewport_offset);
   void DrawElements(const gvr::Mat4f& render_matrix,
                     const std::vector<const ContentRectangle*>& elements);
   void DrawCursor(const gvr::Mat4f& render_matrix);
-  void DrawWebVr();
+  void DrawWebVr(uint32_t pose_index);
   bool WebVrPoseByteIsValid(int pose_index_byte);
 
   void UpdateController(const gvr::Vec3f& forward_vector);
   void SendEventsToTarget(InputTarget input_target, int pixel_x,
                           int pixel_y);
   void SendGesture(InputTarget input_target,
                    std::unique_ptr<blink::WebInputEvent> event);
 
   void OnUIFrameAvailable();
   void OnContentFrameAvailable();
+  void OnWebVrFrameAvailable();
+  void SetWebVrSurface();
 
   void UpdateVSyncParameters(const base::TimeTicks timebase,
                              const base::TimeDelta interval);
   void ScheduleNextDrawFrame();
 
   void ForceExitVr();
 
   // samplerExternalOES texture data for UI content image.
   int ui_texture_id_ = 0;
   // samplerExternalOES texture data for main content image.
   int content_texture_id_ = 0;
+  // samplerExternalOES texture data for WebVR image.
+  int webvr_texture_id_ = 0;
 
   std::unique_ptr<UiScene> scene_;
 
   scoped_refptr<gl::GLSurface> surface_;
   scoped_refptr<gl::GLContext> context_;
   scoped_refptr<gl::SurfaceTexture> ui_surface_texture_;
   scoped_refptr<gl::SurfaceTexture> content_surface_texture_;
+  scoped_refptr<gl::SurfaceTexture> webvr_surface_texture_;
 
   std::unique_ptr<gl::ScopedJavaSurface> ui_surface_;
   std::unique_ptr<gl::ScopedJavaSurface> content_surface_;
+  std::unique_ptr<gl::ScopedJavaSurface> webvr_surface_;
 
   std::unique_ptr<gvr::GvrApi> gvr_api_;
   std::unique_ptr<gvr::BufferViewportList> buffer_viewport_list_;
   std::unique_ptr<gvr::BufferViewport> buffer_viewport_;
   std::unique_ptr<gvr::BufferViewport> headlocked_left_viewport_;
   std::unique_ptr<gvr::BufferViewport> headlocked_right_viewport_;
   std::unique_ptr<gvr::BufferViewport> webvr_left_viewport_;
   std::unique_ptr<gvr::BufferViewport> webvr_right_viewport_;
   std::unique_ptr<gvr::SwapChain> swap_chain_;
 
   // Current sizes for the render buffers.
   gvr::Sizei render_size_primary_;
   gvr::Sizei render_size_headlocked_;
 
+  // Expected sizes for the primary render buffer by mode.
+  gvr::Sizei render_size_primary_vrshell_;
+  gvr::Sizei render_size_primary_webvr_;
+
   std::unique_ptr<VrShellRenderer> vr_shell_renderer_;
 
   bool touch_pending_ = false;
   gvr::Quatf controller_quat_;
 
   gvr::Vec3f target_point_;
   const ContentRectangle* target_element_ = nullptr;
   InputTarget current_input_target_ = InputTarget::NONE;
   int ui_tex_css_width_ = 0;
   int ui_tex_css_height_ = 0;
   int content_tex_css_width_ = 0;
   int content_tex_css_height_ = 0;
   gvr::Sizei content_tex_physical_size_ = {0, 0};
   gvr::Sizei ui_tex_physical_size_ = {0, 0};
 
   // The pose ring buffer size must be a power of two to avoid glitches when
   // the pose index wraps around. It should be large enough to handle the
   // current backlog of poses which is 2-3 frames.
   static constexpr int kPoseRingBufferSize = 8;
   std::vector<gvr::Mat4f> webvr_head_pose_;
-  std::vector<bool> webvr_head_pose_valid_;
-  int webvr_texture_id_ = 0;
+  std::vector<double> webvr_time_frame_start_;
+  std::vector<double> webvr_time_service_start_;
+  std::vector<double> webvr_time_get_pose_;
+  std::vector<double> webvr_time_got_pose_;
+  std::vector<double> webvr_time_submit_;
+  std::vector<double> webvr_time_surfaced_;
+  std::vector<double> webvr_time_acquired_;
   bool web_vr_mode_;
+  gpu::SurfaceHandle webvr_surface_handle_ = 0;
+  uint32_t webvr_last_submitted_ = 0;
+  std::list<uint32_t> webvr_texture_bounds_need_update_at_;
+  std::list<gvr::Rectf> webvr_texture_bounds_left_;
+  std::list<gvr::Rectf> webvr_texture_bounds_right_;
+  std::deque<uint32_t> webvr_pending_poses_;
+  int webvr_already_available_frames_ = 0;
 
   std::unique_ptr<VrController> controller_;
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   base::CancelableClosure draw_task_;
   base::TimeTicks vsync_timebase_;
   base::TimeDelta vsync_interval_;
 
   base::WeakPtr<VrShell> weak_vr_shell_;
   base::WeakPtr<VrInputManager> content_input_manager_;
   base::WeakPtr<VrInputManager> ui_input_manager_;
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
 
   base::WeakPtrFactory<VrShellGl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VrShellGl);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_GL_H_