chromeos: Add SurfaceServiceProvider.

ash/surfaces/test_surface_overlay_view.cc

Index: ash/surfaces/test_surface_overlay_view.cc
diff --git a/ash/surfaces/test_surface_overlay_view.cc b/ash/surfaces/test_surface_overlay_view.cc
new file mode 100644
index 0000000000000000000000000000000000000000..359dad8a968ae638d5a40271706ee3a3f3da0ccf
--- /dev/null
+++ b/ash/surfaces/test_surface_overlay_view.cc
@@ -0,0 +1,189 @@
+// 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 "ash/surfaces/test_surface_overlay_view.h"
+
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#include <GLES2/gl2extchromium.h>
+
+#include "ash/shell.h"
+#include "ash/shell_window_ids.h"
+#include "cc/output/context_provider.h"
+#include "gpu/command_buffer/client/gles2_interface.h"
+#include "gpu/command_buffer/common/mailbox.h"
+#include "ui/aura/env.h"
+#include "ui/compositor/layer.h"
+#include "ui/events/event.h"
+#include "ui/gfx/canvas.h"
+#include "ui/gfx/gpu_memory_buffer.h"
+
+namespace ash {
+namespace {
+
+GLenum GLInternalFormat(gfx::BufferFormat format) {
+  const GLenum kGLInternalFormats[] = {
+      GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD,  // ATC
+      GL_COMPRESSED_RGB_S3TC_DXT1_EXT,     // ATCIA
+      GL_COMPRESSED_RGB_S3TC_DXT1_EXT,     // DXT1
+      GL_COMPRESSED_RGBA_S3TC_DXT5_EXT,    // DXT5
+      GL_ETC1_RGB8_OES,                    // ETC1
+      GL_R8_EXT,                           // R_8
+      GL_RGBA,                             // RGBA_4444
+      GL_RGBA,                             // RGBA_8888
+      GL_RGB,                              // RGBX_8888
+      GL_RGBA,                             // RGBA_8888
+      GL_BGRA_EXT,                         // BGRA_8888
+      GL_RGB_YUV_420_CHROMIUM,             // YUV_420
+      GL_RGB_YCBCR_422_CHROMIUM,           // YUV_420_BIPLANAR
+  };
+  static_assert(arraysize(kGLInternalFormats) ==
+                    (static_cast<int>(gfx::BufferFormat::LAST) + 1),
+                "BufferFormat::LAST must be last value of kGLInternalFormats");
+
+  DCHECK(format <= gfx::BufferFormat::LAST);
+  return kGLInternalFormats[static_cast<int>(format)];
+}
+
+}  // namespace
+
+TestSurfaceOverlayView::TestSurfaceOverlayView()
+    : test_surface_layer_(new ui::Layer(ui::LAYER_TEXTURED)),
+      weak_ptr_factory_(this) {
+  Shell::GetInstance()->surface_controller()->AddObserver(this);
+}
+
+TestSurfaceOverlayView::~TestSurfaceOverlayView() {
+  Shell::GetInstance()->surface_controller()->RemoveObserver(this);
+}
+
+void TestSurfaceOverlayView::OnKeyEvent(ui::KeyEvent* event) {
+}
+
+void TestSurfaceOverlayView::OnMouseEvent(ui::MouseEvent* event) {
+}
+
+void TestSurfaceOverlayView::OnScrollEvent(ui::ScrollEvent* event) {
+}
+
+void TestSurfaceOverlayView::OnGestureEvent(ui::GestureEvent* event) {
+}
+
+void TestSurfaceOverlayView::OnPaint(gfx::Canvas* canvas) {
+  canvas->FillRect(GetLocalBounds(), SK_ColorGRAY);
+}
+
+void TestSurfaceOverlayView::WindowClosing() {
+  Cancel();
+}
+
+void TestSurfaceOverlayView::Cancel() {
+  Shell::GetInstance()->overlay_filter()->Deactivate(this);
+  views::Widget* widget = GetWidget();
+  if (widget)
+    widget->Close();
+}
+
+bool TestSurfaceOverlayView::IsCancelingKeyEvent(ui::KeyEvent* event) {
+  if (event->type() != ui::ET_KEY_PRESSED)
+    return false;
+
+  // Ignore the caps lock state.
+  const int flags = (event->flags() & ~ui::EF_CAPS_LOCK_DOWN);
+
+  // Keys to invoke hide (Ctrl+Alt+A).
+  return event->key_code() == ui::VKEY_A &&
+         flags == (ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN);
+}
+
+aura::Window* TestSurfaceOverlayView::GetWindow() {
+  return GetWidget()->GetNativeWindow();
+}
+
+void TestSurfaceOverlayView::OnTestSurfaceGpuMemoryBufferChanged() {
+  gfx::GpuMemoryBuffer* gpu_memory_buffer =
+      Shell::GetInstance()
+          ->surface_controller()
+          ->GetTestSurfaceGpuMemoryBuffer();
+  if (!gpu_memory_buffer) {
+    test_surface_layer_->SetVisible(false);
+    return;
+  }
+
+  ui::ContextFactory* context_factory =
+      aura::Env::GetInstance()->context_factory();
+  scoped_refptr<cc::ContextProvider> context_provider =
+      context_factory->SharedMainThreadContextProvider();
+  gpu::gles2::GLES2Interface* gles2 = context_provider->ContextGL();
+
+  gfx::BufferFormat format = gpu_memory_buffer->GetFormat();
+  gfx::Size size = gpu_memory_buffer->GetSize();
+
+  GLenum texture_target =
+      context_factory->GetImageTextureTarget(format, gfx::BufferUsage::SCANOUT);
+
+  unsigned texture_id = 0;
+  gles2->GenTextures(1, &texture_id);
+  gles2->ActiveTexture(GL_TEXTURE0);
+  gles2->BindTexture(texture_target, texture_id);
+  gles2->TexParameteri(texture_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+  gles2->TexParameteri(texture_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+  gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+  gles2->TexParameteri(texture_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+  unsigned image_id = gles2->CreateImageCHROMIUM(
+      gpu_memory_buffer->AsClientBuffer(), size.width(), size.height(),
+      GLInternalFormat(format));
+  gles2->BindTexImage2DCHROMIUM(texture_target, image_id);
+  uint32 sync_point = gles2->InsertSyncPointCHROMIUM();
+
+  gpu::Mailbox mailbox;
+  gles2->GenMailboxCHROMIUM(mailbox.name);
+  gles2->ProduceTextureCHROMIUM(texture_target, mailbox.name);
+  cc::TextureMailbox texture_mailbox(mailbox, texture_target, sync_point);
+  test_surface_layer_->SetTextureMailbox(
+      texture_mailbox, cc::SingleReleaseCallback::Create(
+                           base::Bind(&TestSurfaceOverlayView::TextureReleased,
+                                      weak_ptr_factory_.GetWeakPtr(),
+                                      context_provider, texture_id, image_id)),
+      size);
+  test_surface_layer_->SetVisible(true);
+  test_surface_layer_->SetBounds(gfx::Rect(size));
+  test_surface_layer_->SchedulePaint(gfx::Rect(size));
+}
+
+void TestSurfaceOverlayView::TextureReleased(
+    scoped_refptr<cc::ContextProvider> context_provider,
+    unsigned texture_id,
+    unsigned image_id,
+    uint32 sync_point,
+    bool is_lost) {
+  gpu::gles2::GLES2Interface* gles2 = context_provider->ContextGL();
+  gles2->WaitSyncPointCHROMIUM(sync_point);
+  gles2->DeleteTextures(1, &texture_id);
+  gles2->DestroyImageCHROMIUM(image_id);
+}
+
+// static
+void TestSurfaceOverlayView::Show() {
+  if (Shell::GetInstance()->overlay_filter()->IsActive())
+    return;
+
+  TestSurfaceOverlayView* view = new TestSurfaceOverlayView;
+  views::Widget::InitParams params(
+      views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
+  params.bounds = Shell::GetScreen()->GetPrimaryDisplay().bounds();
+  params.show_state = ui::SHOW_STATE_FULLSCREEN;
+  params.parent = Shell::GetContainer(Shell::GetPrimaryRootWindow(),
+                                      kShellWindowId_OverlayContainer);
+  views::Widget* widget = new views::Widget;
+  widget->Init(params);
+  widget->SetContentsView(view);
+  widget->Show();
+  widget->GetNativeView()->SetName("TestSurfaceOverlayView");
+  widget->GetNativeView()->Focus();
+
+  Shell::GetInstance()->overlay_filter()->Activate(view);
+}
+
+}  // namespace ash