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// Copyright 2015 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 "base/macros.h"
#include "base/memory/ref_counted.h"
#include "ui/compositor/compositor_export.h"
#include "ui/compositor/paint_context.h"
#include "ui/gfx/geometry/rect.h"
namespace cc {
class DisplayItemList;
namespace ui {
// This class provides a simple helper for rasterizing from a PaintContext
// interface directly into a bitmap. After constructing an instance of a
// CanvasPainter, the context() can be used to do painting using the normal
// composited paint paths. When the painter is destroyed, any painting done
// with the context() will be rastered into the provided output bitmap.
// TODO(enne): rename this class to be PaintContextRasterizer or some such.
class COMPOSITOR_EXPORT CanvasPainter {
CanvasPainter(SkBitmap* output,
const gfx::Size& output_size,
float device_scale_factor,
SkColor clear_color,
bool is_pixel_canvas);
const PaintContext& context() const { return context_; }
friend class CanvasPainterTest;
SkBitmap* const output_;
const gfx::Size pixel_output_size_;
const float raster_scale_;
const SkColor clear_color_;
scoped_refptr<cc::DisplayItemList> list_;
PaintContext context_;
} // namespace ui