Refactor content/common/gpu into gpu/ipc/service

content/common/gpu/image_transport_surface_overlay_mac.mm

Index: content/common/gpu/image_transport_surface_overlay_mac.mm
diff --git a/content/common/gpu/image_transport_surface_overlay_mac.mm b/content/common/gpu/image_transport_surface_overlay_mac.mm
deleted file mode 100644
index 0cf26dfee85383a031671350a1461b754183c8b3..0000000000000000000000000000000000000000
--- a/content/common/gpu/image_transport_surface_overlay_mac.mm
+++ /dev/null
@@ -1,563 +0,0 @@
-// Copyright 2015 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 "content/common/gpu/image_transport_surface_overlay_mac.h"
-
-#include <CoreGraphics/CoreGraphics.h>
-#include <IOSurface/IOSurface.h>
-#include <OpenGL/CGLRenderers.h>
-#include <OpenGL/CGLTypes.h>
-#include <OpenGL/gl.h>
-#include <stddef.h>
-
-#include <algorithm>
-
-// This type consistently causes problem on Mac, and needs to be dealt with
-// in a systemic way.
-// http://crbug.com/517208
-#ifndef GL_OES_EGL_image
-typedef void* GLeglImageOES;
-#endif
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/mac/scoped_cftyperef.h"
-#include "base/trace_event/trace_event.h"
-#include "content/common/gpu/ca_layer_partial_damage_tree_mac.h"
-#include "content/common/gpu/ca_layer_tree_mac.h"
-#include "content/common/gpu/gpu_channel_manager.h"
-#include "content/common/gpu/gpu_channel_manager_delegate.h"
-#include "ui/accelerated_widget_mac/io_surface_context.h"
-#include "ui/base/cocoa/animation_utils.h"
-#include "ui/base/cocoa/remote_layer_api.h"
-#include "ui/gfx/geometry/rect_conversions.h"
-#include "ui/gfx/transform.h"
-#include "ui/gl/gl_context.h"
-#include "ui/gl/gl_fence.h"
-#include "ui/gl/gl_image_io_surface.h"
-#include "ui/gl/gpu_switching_manager.h"
-#include "ui/gl/scoped_api.h"
-#include "ui/gl/scoped_cgl.h"
-
-namespace {
-
-// Don't let a frame draw until 5% of the way through the next vsync interval
-// after the call to SwapBuffers. This slight offset is to ensure that skew
-// doesn't result in the frame being presented to the previous vsync interval.
-const double kVSyncIntervalFractionForEarliestDisplay = 0.05;
-
-// After doing a glFlush and putting in a fence in SwapBuffers, post a task to
-// query the fence 50% of the way through the next vsync interval. If we are
-// trying to animate smoothly, then want to query the fence at the next
-// SwapBuffers. For this reason we schedule the callback for a long way into
-// the next frame.
-const double kVSyncIntervalFractionForDisplayCallback = 0.5;
-
-// If swaps arrive regularly and nearly at the vsync rate, then attempt to
-// make animation smooth (each frame is shown for one vsync interval) by sending
-// them to the window server only when their GL work completes. If frames are
-// not coming in with each vsync, then just throw them at the window server as
-// they come.
-const double kMaximumVSyncsBetweenSwapsForSmoothAnimation = 1.5;
-
-void CheckGLErrors(const char* msg) {
-  GLenum gl_error;
-  while ((gl_error = glGetError()) != GL_NO_ERROR) {
-    LOG(ERROR) << "OpenGL error hit " << msg << ": " << gl_error;
-  }
-}
-
-void IOSurfaceContextNoOp(scoped_refptr<ui::IOSurfaceContext>) {
-}
-
-}  // namespace
-
-@interface CALayer(Private)
--(void)setContentsChanged;
-@end
-
-namespace content {
-
-scoped_refptr<gfx::GLSurface> ImageTransportSurfaceCreateNativeSurface(
-    GpuChannelManager* manager,
-    GpuCommandBufferStub* stub,
-    gpu::SurfaceHandle handle) {
-  return new ImageTransportSurfaceOverlayMac(manager, stub, handle);
-}
-
-class ImageTransportSurfaceOverlayMac::PendingSwap {
- public:
-  PendingSwap() {}
-  ~PendingSwap() { DCHECK(!gl_fence); }
-
-  gfx::Size pixel_size;
-  float scale_factor;
-  gfx::Rect pixel_damage_rect;
-
-  scoped_ptr<CALayerPartialDamageTree> partial_damage_tree;
-  scoped_ptr<CALayerTree> ca_layer_tree;
-  std::vector<ui::LatencyInfo> latency_info;
-
-  // A fence object, and the CGL context it was issued in.
-  base::ScopedTypeRef<CGLContextObj> cgl_context;
-  scoped_ptr<gfx::GLFence> gl_fence;
-
-  // The earliest time that this frame may be drawn. A frame is not allowed
-  // to draw until a fraction of the way through the vsync interval after its
-  // This extra latency is to allow wiggle-room for smoothness.
-  base::TimeTicks earliest_display_time_allowed;
-
-  // The time that this will wake up and draw, if a following swap does not
-  // cause it to draw earlier.
-  base::TimeTicks target_display_time;
-};
-
-ImageTransportSurfaceOverlayMac::ImageTransportSurfaceOverlayMac(
-    GpuChannelManager* manager,
-    GpuCommandBufferStub* stub,
-    gpu::SurfaceHandle handle)
-    : manager_(manager),
-      stub_(stub->AsWeakPtr()),
-      handle_(handle),
-      use_remote_layer_api_(ui::RemoteLayerAPISupported()),
-      scale_factor_(1),
-      gl_renderer_id_(0),
-      vsync_parameters_valid_(false),
-      display_pending_swap_timer_(true, false),
-      weak_factory_(this) {
-  manager_->AddBufferPresentedCallback(
-      handle_, base::Bind(&ImageTransportSurfaceOverlayMac::BufferPresented,
-                          base::Unretained(this)));
-  ui::GpuSwitchingManager::GetInstance()->AddObserver(this);
-}
-
-ImageTransportSurfaceOverlayMac::~ImageTransportSurfaceOverlayMac() {
-  ui::GpuSwitchingManager::GetInstance()->RemoveObserver(this);
-  if (stub_.get()) {
-    stub_->SetLatencyInfoCallback(
-        base::Callback<void(const std::vector<ui::LatencyInfo>&)>());
-  }
-  Destroy();
-  manager_->RemoveBufferPresentedCallback(handle_);
-}
-
-bool ImageTransportSurfaceOverlayMac::Initialize(
-    gfx::GLSurface::Format format) {
-  if (!stub_.get() || !stub_->decoder())
-    return false;
-
-  stub_->SetLatencyInfoCallback(
-      base::Bind(&ImageTransportSurfaceOverlayMac::SetLatencyInfo,
-                 base::Unretained(this)));
-
-  // Create the CAContext to send this to the GPU process, and the layer for
-  // the context.
-  if (use_remote_layer_api_) {
-    CGSConnectionID connection_id = CGSMainConnectionID();
-    ca_context_.reset([
-        [CAContext contextWithCGSConnection:connection_id options:@{}] retain]);
-    ca_root_layer_.reset([[CALayer alloc] init]);
-    [ca_root_layer_ setGeometryFlipped:YES];
-    [ca_root_layer_ setOpaque:YES];
-    [ca_context_ setLayer:ca_root_layer_];
-  }
-  return true;
-}
-
-void ImageTransportSurfaceOverlayMac::Destroy() {
-  DisplayAndClearAllPendingSwaps();
-
-  current_partial_damage_tree_.reset();
-  current_ca_layer_tree_.reset();
-}
-
-bool ImageTransportSurfaceOverlayMac::IsOffscreen() {
-  return false;
-}
-
-void ImageTransportSurfaceOverlayMac::SetLatencyInfo(
-    const std::vector<ui::LatencyInfo>& latency_info) {
-  latency_info_.insert(latency_info_.end(), latency_info.begin(),
-                       latency_info.end());
-}
-
-void ImageTransportSurfaceOverlayMac::BufferPresented(
-    int32_t surface_id,
-    const base::TimeTicks& vsync_timebase,
-    const base::TimeDelta& vsync_interval) {
-  vsync_timebase_ = vsync_timebase;
-  vsync_interval_ = vsync_interval;
-  vsync_parameters_valid_ = (vsync_interval_ != base::TimeDelta());
-
-  // Compute |vsync_timebase_| to be the first vsync after time zero.
-  if (vsync_parameters_valid_) {
-    vsync_timebase_ -=
-        vsync_interval_ *
-        ((vsync_timebase_ - base::TimeTicks()) / vsync_interval_);
-  }
-}
-
-void ImageTransportSurfaceOverlayMac::SendAcceleratedSurfaceBuffersSwapped(
-    int32_t surface_id,
-    CAContextID ca_context_id,
-    const gfx::ScopedRefCountedIOSurfaceMachPort& io_surface,
-    const gfx::Size& size,
-    float scale_factor,
-    std::vector<ui::LatencyInfo> latency_info) {
-  // TRACE_EVENT for gpu tests:
-  TRACE_EVENT_INSTANT2("test_gpu", "SwapBuffers", TRACE_EVENT_SCOPE_THREAD,
-                       "GLImpl", static_cast<int>(gfx::GetGLImplementation()),
-                       "width", size.width());
-  // On mac, handle_ is a surface id. See
-  // GpuProcessTransportFactory::CreatePerCompositorData
-  manager_->delegate()->SendAcceleratedSurfaceBuffersSwapped(
-      surface_id, ca_context_id, io_surface, size, scale_factor,
-      std::move(latency_info));
-}
-
-gfx::SwapResult ImageTransportSurfaceOverlayMac::SwapBuffersInternal(
-    const gfx::Rect& pixel_damage_rect) {
-  TRACE_EVENT0("gpu", "ImageTransportSurfaceOverlayMac::SwapBuffersInternal");
-
-  // Use the same concept of 'now' for the entire function. The duration of
-  // this function only affect the result if this function lasts across a vsync
-  // boundary, in which case smooth animation is out the window anyway.
-  const base::TimeTicks now = base::TimeTicks::Now();
-
-  // Decide if the frame should be drawn immediately, or if we should wait until
-  // its work finishes before drawing immediately.
-  bool display_immediately = false;
-  if (vsync_parameters_valid_ &&
-      now - last_swap_time_ >
-          kMaximumVSyncsBetweenSwapsForSmoothAnimation * vsync_interval_) {
-    display_immediately = true;
-  }
-  last_swap_time_ = now;
-
-  // If the previous swap is ready to display, do it before flushing the
-  // new swap. It is desirable to always be hitting this path when trying to
-  // animate smoothly with vsync.
-  if (!pending_swaps_.empty()) {
-    if (IsFirstPendingSwapReadyToDisplay(now))
-      DisplayFirstPendingSwapImmediately();
-  }
-
-  // The remainder of the function will populate the PendingSwap structure and
-  // then enqueue it.
-  linked_ptr<PendingSwap> new_swap(new PendingSwap);
-  new_swap->pixel_size = pixel_size_;
-  new_swap->scale_factor = scale_factor_;
-  new_swap->pixel_damage_rect = pixel_damage_rect;
-  new_swap->partial_damage_tree.swap(pending_partial_damage_tree_);
-  new_swap->ca_layer_tree.swap(pending_ca_layer_tree_);
-  new_swap->latency_info.swap(latency_info_);
-
-  // A flush is required to ensure that all content appears in the layer.
-  {
-    gfx::ScopedSetGLToRealGLApi scoped_set_gl_api;
-    TRACE_EVENT0("gpu", "ImageTransportSurfaceOverlayMac::glFlush");
-    CheckGLErrors("before flushing frame");
-    new_swap->cgl_context.reset(CGLGetCurrentContext(),
-                                base::scoped_policy::RETAIN);
-    if (gfx::GLFence::IsSupported() && !display_immediately)
-      new_swap->gl_fence.reset(gfx::GLFence::Create());
-    else
-      glFlush();
-    CheckGLErrors("while flushing frame");
-  }
-
-  // Compute the deadlines for drawing this frame.
-  if (display_immediately) {
-    new_swap->earliest_display_time_allowed = now;
-    new_swap->target_display_time = now;
-  } else {
-    new_swap->earliest_display_time_allowed =
-        GetNextVSyncTimeAfter(now, kVSyncIntervalFractionForEarliestDisplay);
-    new_swap->target_display_time =
-        GetNextVSyncTimeAfter(now, kVSyncIntervalFractionForDisplayCallback);
-  }
-
-  pending_swaps_.push_back(new_swap);
-  if (display_immediately)
-    DisplayFirstPendingSwapImmediately();
-  else
-    PostCheckPendingSwapsCallbackIfNeeded(now);
-  return gfx::SwapResult::SWAP_ACK;
-}
-
-bool ImageTransportSurfaceOverlayMac::IsFirstPendingSwapReadyToDisplay(
-    const base::TimeTicks& now) {
-  DCHECK(!pending_swaps_.empty());
-  linked_ptr<PendingSwap> swap = pending_swaps_.front();
-
-  // Frames are disallowed from drawing until the vsync interval after their
-  // swap is issued.
-  if (now < swap->earliest_display_time_allowed)
-    return false;
-
-  // If we've passed that marker, then wait for the work behind the fence to
-  // complete.
-  if (swap->gl_fence) {
-    gfx::ScopedSetGLToRealGLApi scoped_set_gl_api;
-    gfx::ScopedCGLSetCurrentContext scoped_set_current(swap->cgl_context);
-
-    CheckGLErrors("before waiting on fence");
-    if (!swap->gl_fence->HasCompleted()) {
-      TRACE_EVENT0("gpu", "ImageTransportSurfaceOverlayMac::ClientWait");
-      swap->gl_fence->ClientWait();
-    }
-    swap->gl_fence.reset();
-    CheckGLErrors("after waiting on fence");
-  }
-  return true;
-}
-
-void ImageTransportSurfaceOverlayMac::DisplayFirstPendingSwapImmediately() {
-  TRACE_EVENT0("gpu",
-      "ImageTransportSurfaceOverlayMac::DisplayFirstPendingSwapImmediately");
-  DCHECK(!pending_swaps_.empty());
-  linked_ptr<PendingSwap> swap = pending_swaps_.front();
-
-  // If there is a fence for this object, delete it.
-  if (swap->gl_fence) {
-    gfx::ScopedSetGLToRealGLApi scoped_set_gl_api;
-    gfx::ScopedCGLSetCurrentContext scoped_set_current(swap->cgl_context);
-
-    CheckGLErrors("before deleting active fence");
-    swap->gl_fence.reset();
-    CheckGLErrors("while deleting active fence");
-  }
-
-  // Update the CALayer hierarchy.
-  {
-    gfx::RectF pixel_damage_rect = gfx::RectF(swap->pixel_damage_rect);
-    ScopedCAActionDisabler disabler;
-    if (swap->ca_layer_tree) {
-      swap->ca_layer_tree->CommitScheduledCALayers(
-          ca_root_layer_.get(), std::move(current_ca_layer_tree_),
-          swap->scale_factor);
-      current_ca_layer_tree_.swap(swap->ca_layer_tree);
-      current_partial_damage_tree_.reset();
-    } else if (swap->partial_damage_tree) {
-      swap->partial_damage_tree->CommitCALayers(
-          ca_root_layer_.get(), std::move(current_partial_damage_tree_),
-          swap->scale_factor, swap->pixel_damage_rect);
-      current_partial_damage_tree_.swap(swap->partial_damage_tree);
-      current_ca_layer_tree_.reset();
-    } else {
-      TRACE_EVENT0("gpu", "Blank frame: No overlays or CALayers");
-      [ca_root_layer_ setSublayers:nil];
-      current_partial_damage_tree_.reset();
-      current_ca_layer_tree_.reset();
-    }
-    swap->ca_layer_tree.reset();
-    swap->partial_damage_tree.reset();
-  }
-
-  // Update the latency info to reflect the swap time.
-  base::TimeTicks swap_time = base::TimeTicks::Now();
-  for (auto latency_info : swap->latency_info) {
-    latency_info.AddLatencyNumberWithTimestamp(
-        ui::INPUT_EVENT_GPU_SWAP_BUFFER_COMPONENT, 0, 0, swap_time, 1);
-    latency_info.AddLatencyNumberWithTimestamp(
-        ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0,
-        swap_time, 1);
-  }
-
-  // Send acknowledgement to the browser.
-  CAContextID ca_context_id = 0;
-  gfx::ScopedRefCountedIOSurfaceMachPort io_surface;
-  if (use_remote_layer_api_) {
-    ca_context_id = [ca_context_ contextId];
-  } else if (current_partial_damage_tree_) {
-    io_surface.reset(IOSurfaceCreateMachPort(
-        current_partial_damage_tree_->RootLayerIOSurface()));
-  }
-  gfx::Size size = swap->pixel_size;
-  float scale_factor = swap->scale_factor;
-  std::vector<ui::LatencyInfo> latency_info;
-  latency_info.swap(swap->latency_info);
-  SendAcceleratedSurfaceBuffersSwapped(handle_, ca_context_id, io_surface, size,
-                                       scale_factor, std::move(latency_info));
-
-  // Remove this from the queue, and reset any callback timers.
-  pending_swaps_.pop_front();
-}
-
-void ImageTransportSurfaceOverlayMac::DisplayAndClearAllPendingSwaps() {
-  TRACE_EVENT0("gpu",
-      "ImageTransportSurfaceOverlayMac::DisplayAndClearAllPendingSwaps");
-  while (!pending_swaps_.empty())
-    DisplayFirstPendingSwapImmediately();
-}
-
-void ImageTransportSurfaceOverlayMac::CheckPendingSwapsCallback() {
-  TRACE_EVENT0("gpu",
-      "ImageTransportSurfaceOverlayMac::CheckPendingSwapsCallback");
-
-  if (pending_swaps_.empty())
-    return;
-
-  const base::TimeTicks now = base::TimeTicks::Now();
-  if (IsFirstPendingSwapReadyToDisplay(now))
-    DisplayFirstPendingSwapImmediately();
-  PostCheckPendingSwapsCallbackIfNeeded(now);
-}
-
-void ImageTransportSurfaceOverlayMac::PostCheckPendingSwapsCallbackIfNeeded(
-    const base::TimeTicks& now) {
-  TRACE_EVENT0("gpu",
-      "ImageTransportSurfaceOverlayMac::PostCheckPendingSwapsCallbackIfNeeded");
-
-  if (pending_swaps_.empty()) {
-    display_pending_swap_timer_.Stop();
-  } else {
-    display_pending_swap_timer_.Start(
-        FROM_HERE,
-        pending_swaps_.front()->target_display_time - now,
-        base::Bind(&ImageTransportSurfaceOverlayMac::CheckPendingSwapsCallback,
-                       weak_factory_.GetWeakPtr()));
-  }
-}
-
-gfx::SwapResult ImageTransportSurfaceOverlayMac::SwapBuffers() {
-  return SwapBuffersInternal(
-      gfx::Rect(0, 0, pixel_size_.width(), pixel_size_.height()));
-}
-
-gfx::SwapResult ImageTransportSurfaceOverlayMac::PostSubBuffer(int x,
-                                                               int y,
-                                                               int width,
-                                                               int height) {
-  return SwapBuffersInternal(gfx::Rect(x, y, width, height));
-}
-
-bool ImageTransportSurfaceOverlayMac::SupportsPostSubBuffer() {
-  return true;
-}
-
-gfx::Size ImageTransportSurfaceOverlayMac::GetSize() {
-  return gfx::Size();
-}
-
-void* ImageTransportSurfaceOverlayMac::GetHandle() {
-  return nullptr;
-}
-
-bool ImageTransportSurfaceOverlayMac::OnMakeCurrent(gfx::GLContext* context) {
-  // Ensure that the context is on the appropriate GL renderer. The GL renderer
-  // will generally only change when the GPU changes.
-  if (gl_renderer_id_ && context)
-    context->share_group()->SetRendererID(gl_renderer_id_);
-  return true;
-}
-
-bool ImageTransportSurfaceOverlayMac::SetBackbufferAllocation(bool allocated) {
-  if (!allocated) {
-    DisplayAndClearAllPendingSwaps();
-    last_swap_time_ = base::TimeTicks();
-  }
-  return true;
-}
-
-bool ImageTransportSurfaceOverlayMac::ScheduleOverlayPlane(
-    int z_order,
-    gfx::OverlayTransform transform,
-    gl::GLImage* image,
-    const gfx::Rect& pixel_frame_rect,
-    const gfx::RectF& crop_rect) {
-  if (transform != gfx::OVERLAY_TRANSFORM_NONE) {
-    DLOG(ERROR) << "Invalid overlay plane transform.";
-    return false;
-  }
-  if (z_order) {
-    DLOG(ERROR) << "Invalid non-zero Z order.";
-    return false;
-  }
-  if (pending_partial_damage_tree_) {
-    DLOG(ERROR) << "Only one overlay per swap is allowed.";
-    return false;
-  }
-  pending_partial_damage_tree_.reset(new CALayerPartialDamageTree(
-      use_remote_layer_api_,
-      static_cast<gl::GLImageIOSurface*>(image)->io_surface(),
-      pixel_frame_rect));
-  return true;
-}
-
-bool ImageTransportSurfaceOverlayMac::ScheduleCALayer(
-    gl::GLImage* contents_image,
-    const gfx::RectF& contents_rect,
-    float opacity,
-    unsigned background_color,
-    unsigned edge_aa_mask,
-    const gfx::RectF& rect,
-    bool is_clipped,
-    const gfx::RectF& clip_rect,
-    const gfx::Transform& transform,
-    int sorting_context_id) {
-  base::ScopedCFTypeRef<IOSurfaceRef> io_surface;
-  if (contents_image) {
-    io_surface =
-        static_cast<gl::GLImageIOSurface*>(contents_image)->io_surface();
-  }
-  if (!pending_ca_layer_tree_)
-    pending_ca_layer_tree_.reset(new CALayerTree);
-  return pending_ca_layer_tree_->ScheduleCALayer(
-      is_clipped, gfx::ToEnclosingRect(clip_rect), sorting_context_id,
-      transform, io_surface, contents_rect, gfx::ToEnclosingRect(rect),
-      background_color, edge_aa_mask, opacity);
-}
-
-bool ImageTransportSurfaceOverlayMac::IsSurfaceless() const {
-  return true;
-}
-
-bool ImageTransportSurfaceOverlayMac::Resize(const gfx::Size& pixel_size,
-                                             float scale_factor,
-                                             bool has_alpha) {
-  // Flush through any pending frames.
-  DisplayAndClearAllPendingSwaps();
-  pixel_size_ = pixel_size;
-  scale_factor_ = scale_factor;
-  return true;
-}
-
-void ImageTransportSurfaceOverlayMac::OnGpuSwitched() {
-  // Create a new context, and use the GL renderer ID that the new context gets.
-  scoped_refptr<ui::IOSurfaceContext> context_on_new_gpu =
-      ui::IOSurfaceContext::Get(ui::IOSurfaceContext::kCALayerContext);
-  if (!context_on_new_gpu)
-    return;
-  GLint context_renderer_id = -1;
-  if (CGLGetParameter(context_on_new_gpu->cgl_context(),
-                      kCGLCPCurrentRendererID,
-                      &context_renderer_id) != kCGLNoError) {
-    LOG(ERROR) << "Failed to create test context after GPU switch";
-    return;
-  }
-  gl_renderer_id_ = context_renderer_id & kCGLRendererIDMatchingMask;
-
-  // Post a task holding a reference to the new GL context. The reason for
-  // this is to avoid creating-then-destroying the context for every image
-  // transport surface that is observing the GPU switch.
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE, base::Bind(&IOSurfaceContextNoOp, context_on_new_gpu));
-}
-
-base::TimeTicks ImageTransportSurfaceOverlayMac::GetNextVSyncTimeAfter(
-    const base::TimeTicks& from, double interval_fraction) {
-  if (!vsync_parameters_valid_)
-    return from;
-
-  // Compute the previous vsync time.
-  base::TimeTicks previous_vsync =
-      vsync_interval_ * ((from - vsync_timebase_) / vsync_interval_) +
-      vsync_timebase_;
-
-  // Return |interval_fraction| through the next vsync.
-  return previous_vsync + (1 + interval_fraction) * vsync_interval_;
-}
-
-}  // namespace content