Add Vaapi support on Ozone/Freon

content/common/gpu/media/rendering_helper.cc

 // Copyright 2013 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/media/rendering_helper.h"
 
 #include <algorithm>
 #include <numeric>
 #include <vector>
 
@@ skipping 18 matching lines @@
 #endif
 
 #if defined(ARCH_CPU_X86_FAMILY) && defined(USE_X11)
 #include "ui/gl/gl_surface_glx.h"
 #define GL_VARIANT_GLX 1
 #else
 #include "ui/gl/gl_surface_egl.h"
 #define GL_VARIANT_EGL 1
 #endif
 
+#if defined(USE_OZONE)
+#if defined(OS_CHROMEOS)
+#include "ui/display/chromeos/display_configurator.h"
+#endif  // defined(OS_CHROMEOS)
+#include "ui/ozone/public/ozone_platform.h"
+#include "ui/ozone/public/ui_thread_gpu.h"
+#include "ui/platform_window/platform_window.h"
+#include "ui/platform_window/platform_window_delegate.h"
+#endif  // defined(USE_OZONE)
+
 // Helper for Shader creation.
 static void CreateShader(GLuint program,
                          GLenum type,
                          const char* source,
                          int size) {
   GLuint shader = glCreateShader(type);
   glShaderSource(shader, 1, &source, &size);
   glCompileShader(shader);
   int result = GL_FALSE;
   glGetShaderiv(shader, GL_COMPILE_STATUS, &result);
   if (!result) {
     char log[4096];
     glGetShaderInfoLog(shader, arraysize(log), NULL, log);
     LOG(FATAL) << log;
   }
   glAttachShader(program, shader);
   glDeleteShader(shader);
   CHECK_EQ(static_cast<int>(glGetError()), GL_NO_ERROR);
 }
 
 namespace content {
 
+#if defined(USE_OZONE)
+
+class RenderingHelper::StubOzoneDelegate : public ui::PlatformWindowDelegate {
+ public:
+  StubOzoneDelegate() : accelerated_widget_(gfx::kNullAcceleratedWidget) {
+    ui_thread_gpu_.Initialize();
+    platform_window_ = ui::OzonePlatform::GetInstance()->CreatePlatformWindow(
+        this, gfx::Rect());
+  }
+  virtual ~StubOzoneDelegate() {}
+
+  void OnBoundsChanged(const gfx::Rect& new_bounds) override {}
+
+  void OnDamageRect(const gfx::Rect& damaged_region) override {}
+
+  void DispatchEvent(ui::Event* event) override {}
+
+  void OnCloseRequest() override {}
+  void OnClosed() override {}
+
+  void OnWindowStateChanged(ui::PlatformWindowState new_state) override {}
+
+  void OnLostCapture() override {};
+
+  void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override {
+    accelerated_widget_ = widget;
+  };
+
+  void OnActivationChanged(bool active) override {};
+
+  gfx::AcceleratedWidget accelerated_widget() const {
+    return accelerated_widget_;
+  }
+
+  gfx::Size GetSize() { return platform_window_->GetBounds().size(); }
+
+  ui::PlatformWindow* platform_window() const { return platform_window_.get(); }
+
+ private:
+  ui::UiThreadGpu ui_thread_gpu_;
+  scoped_ptr<ui::PlatformWindow> platform_window_;
+  gfx::AcceleratedWidget accelerated_widget_;
+
+  DISALLOW_COPY_AND_ASSIGN(StubOzoneDelegate);
+};
+
+#endif  // defined(USE_OZONE)
+
 RenderingHelperParams::RenderingHelperParams()
     : rendering_fps(0), warm_up_iterations(0), render_as_thumbnails(false) {
 }
 
 RenderingHelperParams::~RenderingHelperParams() {}
 
 VideoFrameTexture::VideoFrameTexture(uint32 texture_target,
                                      uint32 texture_id,
                                      const base::Closure& no_longer_needed_cb)
     : texture_target_(texture_target),
@@ skipping 15 matching lines @@
 
 // static
 bool RenderingHelper::InitializeOneOff() {
   base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
 #if GL_VARIANT_GLX
   cmd_line->AppendSwitchASCII(switches::kUseGL,
                               gfx::kGLImplementationDesktopName);
 #else
   cmd_line->AppendSwitchASCII(switches::kUseGL, gfx::kGLImplementationEGLName);
 #endif
+#if defined(USE_OZONE)
+  ui::OzonePlatform::InitializeForUI();
+#endif
   return gfx::GLSurface::InitializeOneOff();
 }
 
 RenderingHelper::RenderingHelper() {
   window_ = gfx::kNullAcceleratedWidget;
   Clear();
 }
 
 RenderingHelper::~RenderingHelper() {
   CHECK_EQ(videos_.size(), 0U) << "Must call UnInitialize before dtor.";
@@ skipping 54 matching lines @@
                           XHeightOfScreen(screen),
                           0 /* border width */,
                           depth,
                           CopyFromParent /* class */,
                           CopyFromParent /* visual */,
                           (CWBackPixel | CWOverrideRedirect),
                           &window_attributes);
   XStoreName(display, window_, "VideoDecodeAcceleratorTest");
   XSelectInput(display, window_, ExposureMask);
   XMapWindow(display, window_);
+#elif defined(USE_OZONE)
+  platform_window_delegate_.reset(new RenderingHelper::StubOzoneDelegate());
+  window_ = platform_window_delegate_->accelerated_widget();
+#if defined(OS_CHROMEOS)
+  display_configurator_.reset(new ui::DisplayConfigurator());
+  display_configurator_->Init(true);
+  display_configurator_->ForceInitialConfigure(0);
+  platform_window_delegate_->platform_window()->SetBounds(
+      gfx::Rect(display_configurator_->framebuffer_size()));
+#else
+  platform_window_delegate_->platform_window()->SetBounds(gfx::Rect(800, 600));
+#endif
 #else
 #error unknown platform
 #endif
   CHECK(window_ != gfx::kNullAcceleratedWidget);
 
   gl_surface_ = gfx::GLSurface::CreateViewGLSurface(window_);
   screen_size_ = gl_surface_->GetSize();
 
   gl_context_ = gfx::GLContext::CreateGLContext(
       NULL, gl_surface_.get(), gfx::PreferIntegratedGpu);
@@ skipping 118 matching lines @@
   }
   int pos_location = glGetAttribLocation(program_, "in_pos");
   glEnableVertexAttribArray(pos_location);
   glVertexAttribPointer(pos_location, 2, GL_FLOAT, GL_FALSE, 0, kVertices);
   int tc_location = glGetAttribLocation(program_, "in_tc");
   glEnableVertexAttribArray(tc_location);
   glVertexAttribPointer(tc_location, 2, GL_FLOAT, GL_FALSE, 0, kTextureCoords);
 
   if (frame_duration_ != base::TimeDelta()) {
     int warm_up_iterations = params.warm_up_iterations;
+#if defined(USE_OZONE)
+    // On Ozone the VSyncProvider can't provide a vsync interval until
+    // we render at least a frame, so we warm up with at least one
+    // frame.
+    // On top of this, we want to make sure all the buffers backing
+    // the GL surface are cleared, otherwise we can see the previous
+    // test's last frames, so we set warm up iterations to 2, to clear
+    // the front and back buffers.
+    warm_up_iterations = std::max(2, warm_up_iterations);
+#endif
     WarmUpRendering(warm_up_iterations);
   }
 
   // It's safe to use Unretained here since |rendering_thread_| will be stopped
   // in VideoDecodeAcceleratorTest.TearDown(), while the |rendering_helper_| is
   // a member of that class. (See video_decode_accelerator_unittest.cc.)
   gfx::VSyncProvider* vsync_provider = gl_surface_->GetVSyncProvider();
   if (vsync_provider && frame_duration_ != base::TimeDelta())
     vsync_provider->GetVSyncParameters(base::Bind(
         &RenderingHelper::UpdateVSyncParameters, base::Unretained(this), done));
@@ skipping 21 matching lines @@
   for (int i = 0; i < warm_up_iterations; ++i) {
     RenderTexture(GL_TEXTURE_2D, texture_id);
     gl_surface_->SwapBuffers();
   }
   glDeleteTextures(1, &texture_id);
 }
 
 void RenderingHelper::UnInitialize(base::WaitableEvent* done) {
   CHECK_EQ(base::MessageLoop::current(), message_loop_);
 
+#if defined(USE_OZONE) && defined(OS_CHROMEOS)
+  display_configurator_->PrepareForExit();
+#endif
+
   render_task_.Cancel();
 
   if (render_as_thumbnails_) {
     glDeleteTextures(1, &thumbnails_texture_id_);
     glDeleteFramebuffersEXT(1, &thumbnails_fbo_id_);
   }
 
   gl_context_->ReleaseCurrent(gl_surface_.get());
   gl_context_ = NULL;
   gl_surface_ = NULL;
@@ skipping 134 matching lines @@
 
 #if defined(OS_WIN)
   if (window_)
     DestroyWindow(window_);
 #elif defined(USE_X11)
   // Destroy resources acquired in Initialize, in reverse-acquisition order.
   if (window_) {
     CHECK(XUnmapWindow(gfx::GetXDisplay(), window_));
     CHECK(XDestroyWindow(gfx::GetXDisplay(), window_));
   }
+#elif defined(USE_OZONE)
+  platform_window_delegate_.reset();
 #endif
   window_ = gfx::kNullAcceleratedWidget;
 }
 
 void RenderingHelper::GetThumbnailsAsRGB(std::vector<unsigned char>* rgb,
                                          bool* alpha_solid,
                                          base::WaitableEvent* done) {
   CHECK(render_as_thumbnails_);
 
   const size_t num_pixels = thumbnails_fbo_size_.GetArea();
@@ skipping 179 matching lines @@
   // When the rendering falls behind, drops frames.
   while (scheduled_render_time_ < target) {
     scheduled_render_time_ += frame_duration_;
     DropOneFrameForAllVideos();
   }
 
   message_loop_->PostDelayedTask(
       FROM_HERE, render_task_.callback(), target - now);
 }
 }  // namespace content