Adam Barth 59f18e7ef2 Add a simple compositor for Sky
Currently we're only able to put up one frame and we can have only one layer, but
this is enough to draw a green circle in a sample app. A future CL will wire this
up to Sky and add support for drawing a second frame.

R=eseidel@chromium.org, ojan@chromium.org

Review URL: https://codereview.chromium.org/740923002
2014-11-20 14:10:40 -08:00

48 lines
1.0 KiB
C++

// 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 "sky/compositor/layer.h"
#include "mojo/skia/ganesh_surface.h"
#include "sky/compositor/layer_host.h"
#include "third_party/skia/include/core/SkCanvas.h"
namespace sky {
Layer::Layer(LayerClient* client) : client_(client), host_(nullptr) {
}
Layer::~Layer() {
}
void Layer::ClearClient() {
client_ = nullptr;
}
void Layer::SetSize(const gfx::Size& size) {
size_ = size;
}
void Layer::Display() {
DCHECK(host_);
mojo::GaneshContext::Scope scope(host_->ganesh_context());
mojo::GaneshSurface surface(host_->ganesh_context(),
host_->resource_manager()->CreateTexture(size_));
SkCanvas* canvas = surface.canvas();
gfx::Rect rect(size_);
client_->PaintContents(canvas, rect);
canvas->flush();
texture_ = surface.TakeTexture();
}
scoped_ptr<mojo::GLTexture> Layer::GetTexture() {
return texture_.Pass();
}
} // namespace sky