Mojo surfaces service and example app

mojo/examples/surfaces_app/embedder.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 "mojo/examples/surfaces_app/embedder.h"
+
+#include "cc/output/compositor_frame.h"
+#include "cc/output/delegated_frame_data.h"
+#include "cc/quads/render_pass.h"
+#include "cc/quads/solid_color_draw_quad.h"
+#include "cc/quads/surface_draw_quad.h"
+#include "mojo/examples/surfaces_app/surfaces_util.h"
+#include "mojo/services/public/cpp/surfaces/surfaces_type_converters.h"
+#include "mojo/services/public/interfaces/surfaces/surface_id.mojom.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/size.h"
+#include "ui/gfx/transform.h"
+
+namespace mojo {
+namespace examples {
+
+using cc::RenderPass;
+using cc::SurfaceDrawQuad;
+using cc::DrawQuad;
+using cc::SolidColorDrawQuad;
+using cc::DelegatedFrameData;
+using cc::CompositorFrame;
+
+Embedder::Embedder(surfaces::Surface* surface) : surface_(surface) {
+}
+
+Embedder::~Embedder() {
+}
+
+void Embedder::ProduceFrame(cc::SurfaceId child_one,
+                            cc::SurfaceId child_two,
+                            const gfx::Size& child_size,
+                            const gfx::Size& size,
+                            double rotation_degrees) {
+  gfx::Rect rect(size);
+  RenderPass::Id pass_id(1, 1);
+  scoped_ptr<RenderPass> pass = RenderPass::Create();
+  pass->SetNew(pass_id, rect, rect, gfx::Transform());
+
+  gfx::Transform one_transform;
+  one_transform.Translate(10 + child_size.width() / 2,
+                          50 + child_size.height() / 2);
+  one_transform.Rotate(rotation_degrees);
+  one_transform.Translate(-child_size.width() / 2, -child_size.height() / 2);
+  CreateAndAppendSimpleSharedQuadState(pass.get(), one_transform, size);
+
+  scoped_ptr<SurfaceDrawQuad> surface_one_quad = SurfaceDrawQuad::Create();
+  gfx::Rect one_rect(child_size);
+  surface_one_quad->SetNew(
+      pass->shared_quad_state_list.back(), one_rect, one_rect, child_one);
+  pass->quad_list.push_back(surface_one_quad.PassAs<DrawQuad>());
+
+  gfx::Transform two_transform;
+  two_transform.Translate(10 + size.width() / 2 + child_size.width() / 2,
+                          50 + child_size.height() / 2);
+  two_transform.Rotate(-rotation_degrees * 0.76);
+  two_transform.Translate(-child_size.width() / 2, -child_size.height() / 2);
+  CreateAndAppendSimpleSharedQuadState(pass.get(), two_transform, size);
+
+  scoped_ptr<SurfaceDrawQuad> surface_two_quad = SurfaceDrawQuad::Create();
+  gfx::Rect two_rect(child_size);
+  surface_two_quad->SetNew(
+      pass->shared_quad_state_list.back(), two_rect, two_rect, child_two);
+  pass->quad_list.push_back(surface_two_quad.PassAs<DrawQuad>());
+
+  CreateAndAppendSimpleSharedQuadState(pass.get(), gfx::Transform(), size);
+  scoped_ptr<SolidColorDrawQuad> color_quad = SolidColorDrawQuad::Create();
+  bool force_anti_aliasing_off = false;
+  color_quad->SetNew(pass->shared_quad_state_list.back(),
+                     rect,
+                     rect,
+                     SK_ColorYELLOW,
+                     force_anti_aliasing_off);
+  pass->quad_list.push_back(color_quad.PassAs<DrawQuad>());
+
+  scoped_ptr<DelegatedFrameData> delegated_frame_data(new DelegatedFrameData);
+  delegated_frame_data->render_pass_list.push_back(pass.Pass());
+
+  scoped_ptr<CompositorFrame> frame(new CompositorFrame);
+  frame->delegated_frame_data = delegated_frame_data.Pass();
+
+  surface_->SubmitFrame(mojo::surfaces::SurfaceId::From(id_),
+                        mojo::surfaces::Frame::From(*frame));
+}
+
+}  // namespace examples
+}  // namespace mojo