Update the UI examples.

examples/ganesh_app/texture_uploader.cc

-// 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 "examples/ganesh_app/texture_uploader.h"
-
-#ifndef GL_GLEXT_PROTOTYPES
-#define GL_GLEXT_PROTOTYPES
-#endif
-
-#include <GLES2/gl2.h>
-#include <GLES2/gl2extmojo.h>
-
-#include "base/bind.h"
-#include "base/trace_event/trace_event.h"
-#include "mojo/public/cpp/application/connect.h"
-#include "mojo/public/interfaces/application/shell.mojom.h"
-#include "mojo/services/geometry/cpp/geometry_util.h"
-#include "mojo/services/surfaces/cpp/surfaces_utils.h"
-
-namespace examples {
-
-TextureUploader::Client::~Client() {}
-
-TextureUploader::TextureUploader(Client* client,
-                                 mojo::Shell* shell,
-                                 base::WeakPtr<mojo::GLContext> context)
-    : client_(client),
-      context_(context),
-      next_resource_id_(0u),
-      id_namespace_(0u),
-      local_id_(0u),
-      returner_binding_(this) {
-  TRACE_EVENT0("ganesh_app", __func__);
-  context_->AddObserver(this);
-
-  mojo::ServiceProviderPtr surfaces_service_provider;
-  shell->ConnectToApplication("mojo:surfaces_service",
-                              mojo::GetProxy(&surfaces_service_provider),
-                              nullptr);
-  mojo::ConnectToService(surfaces_service_provider.get(), &surface_);
-  surface_->GetIdNamespace(
-      base::Bind(&TextureUploader::SetIdNamespace, base::Unretained(this)));
-  mojo::ResourceReturnerPtr returner_ptr;
-  returner_binding_.Bind(GetProxy(&returner_ptr));
-  surface_->SetResourceReturner(returner_ptr.Pass());
-}
-
-TextureUploader::~TextureUploader() {
-  if (context_.get())
-    context_->RemoveObserver(this);
-}
-
-void TextureUploader::Upload(scoped_ptr<mojo::GLTexture> texture) {
-  TRACE_EVENT0("ganesh_app", __func__);
-  mojo::Size size = texture->size();
-  EnsureSurfaceForSize(size);
-
-  mojo::FramePtr frame = mojo::Frame::New();
-  frame->resources.resize(0u);
-
-  mojo::Rect bounds;
-  bounds.width = size.width;
-  bounds.height = size.height;
-  mojo::PassPtr pass = mojo::CreateDefaultPass(1, bounds);
-  pass->quads.resize(0u);
-  pass->shared_quad_states.push_back(mojo::CreateDefaultSQS(size));
-
-  context_->MakeCurrent();
-  glBindTexture(GL_TEXTURE_2D, texture->texture_id());
-  GLbyte mailbox[GL_MAILBOX_SIZE_CHROMIUM];
-  glGenMailboxCHROMIUM(mailbox);
-  glProduceTextureCHROMIUM(GL_TEXTURE_2D, mailbox);
-  GLuint sync_point = glInsertSyncPointCHROMIUM();
-
-  mojo::TransferableResourcePtr resource = mojo::TransferableResource::New();
-  resource->id = next_resource_id_++;
-  resource_to_texture_map_[resource->id] = texture.release();
-  resource->format = mojo::ResourceFormat::RGBA_8888;
-  resource->filter = GL_LINEAR;
-  resource->size = size.Clone();
-  mojo::MailboxHolderPtr mailbox_holder = mojo::MailboxHolder::New();
-  mailbox_holder->mailbox = mojo::Mailbox::New();
-  for (int i = 0; i < GL_MAILBOX_SIZE_CHROMIUM; ++i)
-    mailbox_holder->mailbox->name.push_back(mailbox[i]);
-  mailbox_holder->texture_target = GL_TEXTURE_2D;
-  mailbox_holder->sync_point = sync_point;
-  resource->mailbox_holder = mailbox_holder.Pass();
-  resource->is_repeated = false;
-  resource->is_software = false;
-
-  mojo::QuadPtr quad = mojo::Quad::New();
-  quad->material = mojo::Material::TEXTURE_CONTENT;
-
-  mojo::RectPtr rect = mojo::Rect::New();
-  rect->width = size.width;
-  rect->height = size.height;
-  quad->rect = rect.Clone();
-  quad->opaque_rect = rect.Clone();
-  quad->visible_rect = rect.Clone();
-  quad->needs_blending = true;
-  quad->shared_quad_state_index = 0u;
-
-  mojo::TextureQuadStatePtr texture_state = mojo::TextureQuadState::New();
-  texture_state->resource_id = resource->id;
-  texture_state->premultiplied_alpha = true;
-  texture_state->uv_top_left = mojo::PointF::New();
-  texture_state->uv_bottom_right = mojo::PointF::New();
-  texture_state->uv_bottom_right->x = 1.f;
-  texture_state->uv_bottom_right->y = 1.f;
-  texture_state->background_color = mojo::Color::New();
-  texture_state->background_color->rgba = 0;
-  for (int i = 0; i < 4; ++i)
-    texture_state->vertex_opacity.push_back(1.f);
-  texture_state->flipped = false;
-
-  frame->resources.push_back(resource.Pass());
-  quad->texture_quad_state = texture_state.Pass();
-  pass->quads.push_back(quad.Pass());
-
-  frame->passes.push_back(pass.Pass());
-  surface_->SubmitFrame(local_id_, frame.Pass(), mojo::Closure());
-}
-
-void TextureUploader::OnContextLost() {
-  LOG(FATAL) << "Context lost.";
-}
-
-void TextureUploader::ReturnResources(
-    mojo::Array<mojo::ReturnedResourcePtr> resources) {
-  TRACE_EVENT0("ganesh_app", __func__);
-  context_->MakeCurrent();
-  for (size_t i = 0u; i < resources.size(); ++i) {
-    mojo::ReturnedResourcePtr resource = resources[i].Pass();
-    DCHECK_EQ(1, resource->count);
-    glWaitSyncPointCHROMIUM(resource->sync_point);
-    mojo::GLTexture* texture = resource_to_texture_map_[resource->id];
-    DCHECK_NE(0u, texture->texture_id());
-    resource_to_texture_map_.erase(resource->id);
-    delete texture;
-  }
-}
-
-void TextureUploader::EnsureSurfaceForSize(const mojo::Size& size) {
-  TRACE_EVENT0("ganesh_app", __func__);
-  if (local_id_ != 0u && size == surface_size_)
-    return;
-
-  if (local_id_ != 0u) {
-    surface_->DestroySurface(local_id_);
-  }
-
-  local_id_++;
-  surface_->CreateSurface(local_id_);
-  surface_size_ = size;
-  if (id_namespace_ != 0u)
-    SendFullyQualifiedID();
-}
-void TextureUploader::SendFullyQualifiedID() {
-  auto qualified_id = mojo::SurfaceId::New();
-  qualified_id->id_namespace = id_namespace_;
-  qualified_id->local = local_id_;
-  client_->OnSurfaceIdAvailable(qualified_id.Pass());
-}
-
-void TextureUploader::SetIdNamespace(uint32_t id_namespace) {
-  id_namespace_ = id_namespace;
-  if (local_id_ != 0u)
-    SendFullyQualifiedID();
-}
-
-}  // namespace examples