Revert of Mojo multiple command buffer support and sample

mojo/examples/surfaces_app/child_gl_impl.cc

Index: mojo/examples/surfaces_app/child_gl_impl.cc
diff --git a/mojo/examples/surfaces_app/child_gl_impl.cc b/mojo/examples/surfaces_app/child_gl_impl.cc
deleted file mode 100644
index e669761686d613fa18b9f53365120d37b192eeea..0000000000000000000000000000000000000000
--- a/mojo/examples/surfaces_app/child_gl_impl.cc
+++ /dev/null
@@ -1,182 +0,0 @@
-// 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 "mojo/examples/surfaces_app/child_gl_impl.h"
-
-#ifndef GL_GLEXT_PROTOTYPES
-#define GL_GLEXT_PROTOTYPES
-#endif
-
-#include "base/bind.h"
-#include "base/message_loop/message_loop.h"
-#include "cc/output/compositor_frame.h"
-#include "cc/output/delegated_frame_data.h"
-#include "cc/quads/render_pass.h"
-#include "cc/quads/texture_draw_quad.h"
-#include "gpu/GLES2/gl2chromium.h"
-#include "gpu/GLES2/gl2extchromium.h"
-#include "mojo/examples/surfaces_app/surfaces_util.h"
-#include "mojo/public/cpp/application/application_connection.h"
-#include "mojo/public/cpp/environment/environment.h"
-#include "mojo/services/public/cpp/geometry/geometry_type_converters.h"
-#include "mojo/services/public/cpp/surfaces/surfaces_type_converters.h"
-#include "mojo/services/public/interfaces/surfaces/surface_id.mojom.h"
-#include "mojo/services/public/interfaces/surfaces/surfaces.mojom.h"
-#include "third_party/khronos/GLES2/gl2.h"
-#include "third_party/khronos/GLES2/gl2ext.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/transform.h"
-
-namespace mojo {
-namespace examples {
-
-using cc::RenderPass;
-using cc::DrawQuad;
-using cc::TextureDrawQuad;
-using cc::DelegatedFrameData;
-using cc::CompositorFrame;
-
-static void ContextLostThunk(void*) {
-  LOG(FATAL) << "Context lost";
-}
-
-ChildGLImpl::ChildGLImpl(ApplicationConnection* surfaces_service_connection,
-                         CommandBufferPtr command_buffer)
-    : start_time_(base::TimeTicks::Now()), next_resource_id_(1) {
-  surfaces_service_connection->ConnectToService(&surface_);
-  surface_.set_client(this);
-  context_ =
-      MojoGLES2CreateContext(command_buffer.PassMessagePipe().release().value(),
-                             &ContextLostThunk,
-                             this,
-                             Environment::GetDefaultAsyncWaiter());
-  DCHECK(context_);
-  MojoGLES2MakeCurrent(context_);
-}
-
-ChildGLImpl::~ChildGLImpl() {
-  MojoGLES2DestroyContext(context_);
-  surface_->DestroySurface(mojo::SurfaceId::From(id_));
-}
-
-void ChildGLImpl::ProduceFrame(
-    ColorPtr color,
-    SizePtr size,
-    const mojo::Callback<void(SurfaceIdPtr id)>& callback) {
-  color_ = color.To<SkColor>();
-  size_ = size.To<gfx::Size>();
-  cube_.Init(size_.width(), size_.height());
-  cube_.set_color(
-      SkColorGetR(color_), SkColorGetG(color_), SkColorGetB(color_));
-  produce_callback_ = callback;
-  if (allocator_)
-    AllocateSurface();
-}
-
-void ChildGLImpl::SetIdNamespace(uint32_t id_namespace) {
-  allocator_.reset(new cc::SurfaceIdAllocator(id_namespace));
-  if (!produce_callback_.is_null())
-    AllocateSurface();
-}
-
-void ChildGLImpl::ReturnResources(Array<ReturnedResourcePtr> resources) {
-  for (size_t i = 0; i < resources.size(); ++i) {
-    cc::ReturnedResource res = resources[i].To<cc::ReturnedResource>();
-    GLuint returned_texture = id_to_tex_map_[res.id];
-    glDeleteTextures(1, &returned_texture);
-  }
-}
-
-void ChildGLImpl::AllocateSurface() {
-  if (produce_callback_.is_null() || !allocator_)
-    return;
-
-  id_ = allocator_->GenerateId();
-  surface_->CreateSurface(mojo::SurfaceId::From(id_), mojo::Size::From(size_));
-  produce_callback_.Run(SurfaceId::From(id_));
-  Draw();
-}
-
-void ChildGLImpl::Draw() {
-  // First, generate a GL texture and draw the cube into it.
-  GLuint texture = 0u;
-  glGenTextures(1, &texture);
-  glBindTexture(GL_TEXTURE_2D, texture);
-  glTexImage2D(GL_TEXTURE_2D,
-               0,
-               GL_RGBA,
-               size_.width(),
-               size_.height(),
-               0,
-               GL_RGBA,
-               GL_UNSIGNED_BYTE,
-               0);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-  GLuint fbo = 0u;
-  glGenFramebuffers(1, &fbo);
-  glBindFramebuffer(GL_FRAMEBUFFER, fbo);
-  glFramebufferTexture2D(
-      GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
-  DCHECK_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
-            glCheckFramebufferStatus(GL_FRAMEBUFFER));
-  glClearColor(1, 0, 0, 0.5);
-  cube_.UpdateForTimeDelta(0.16f);
-  cube_.Draw();
-
-  // Then, put the texture into a mailbox.
-  gpu::Mailbox mailbox = gpu::Mailbox::Generate();
-  glProduceTextureCHROMIUM(GL_TEXTURE_2D, mailbox.name);
-  GLuint sync_point = glInsertSyncPointCHROMIUM();
-  gpu::MailboxHolder holder(mailbox, GL_TEXTURE_2D, sync_point);
-
-  // Then, put the mailbox into a TransferableResource
-  cc::TransferableResource resource;
-  resource.id = next_resource_id_++;
-  id_to_tex_map_[resource.id] = texture;
-  resource.format = cc::RGBA_8888;
-  resource.filter = GL_LINEAR;
-  resource.size = size_;
-  resource.mailbox_holder = holder;
-  resource.is_repeated = false;
-  resource.is_software = false;
-
-  gfx::Rect rect(size_);
-  RenderPass::Id id(1, 1);
-  scoped_ptr<RenderPass> pass = RenderPass::Create();
-  pass->SetNew(id, rect, rect, gfx::Transform());
-
-  CreateAndAppendSimpleSharedQuadState(pass.get(), gfx::Transform(), size_);
-
-  TextureDrawQuad* texture_quad =
-      pass->CreateAndAppendDrawQuad<TextureDrawQuad>();
-  float vertex_opacity[4] = {1.0f, 1.0f, 0.2f, 1.0f};
-  texture_quad->SetNew(pass->shared_quad_state_list.back(),
-                       rect,
-                       rect,
-                       rect,
-                       resource.id,
-                       true,
-                       gfx::PointF(),
-                       gfx::PointF(1.f, 1.f),
-                       SK_ColorBLUE,
-                       vertex_opacity,
-                       false);
-
-  scoped_ptr<DelegatedFrameData> delegated_frame_data(new DelegatedFrameData);
-  delegated_frame_data->render_pass_list.push_back(pass.Pass());
-  delegated_frame_data->resource_list.push_back(resource);
-
-  scoped_ptr<CompositorFrame> frame(new CompositorFrame);
-  frame->delegated_frame_data = delegated_frame_data.Pass();
-
-  surface_->SubmitFrame(mojo::SurfaceId::From(id_), mojo::Frame::From(*frame));
-
-  base::MessageLoop::current()->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&ChildGLImpl::Draw, base::Unretained(this)),
-      base::TimeDelta::FromMilliseconds(50));
-}
-
-}  // namespace examples
-}  // namespace mojo