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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 <memory>
#include <utility>
#include <vector>
#include "base/macros.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/android/ui_android_export.h"
#include "ui/gfx/geometry/rect.h"
namespace cc {
typedef int UIResourceId;
namespace ui {
// A resource that provides an unscaled bitmap and corresponding metadata for a
// crushed sprite. A crushed sprite animation is run by drawing rectangles from
// a bitmap to a canvas. Each frame in the animation draws its rectangles on top
// of the previous frame.
class UI_ANDROID_EXPORT CrushedSpriteResource {
typedef std::vector<std::pair<gfx::Rect, gfx::Rect>> FrameSrcDstRects;
typedef std::vector<FrameSrcDstRects> SrcDstRects;
// Creates a new CrushedSpriteResource. |bitmap_res_id| is the id for the
// for the source bitmap, |java_bitmap| is the source bitmap for the crushed
// sprite, |src_dst_rects| is a list of rectangles to draw for each frame, and
// |unscaled_sprite_size| is the size of an individual sprite unscaled. The
// sprite should be drawn at its unscaled size then scaled to
// |scaled_sprite_size|.
CrushedSpriteResource(const SkBitmap& bitmap,
const SrcDstRects& src_dst_rects,
gfx::Size unscaled_sprite_size,
gfx::Size scaled_sprite_size);
// Sets the source bitmap.
void SetBitmap(const SkBitmap& bitmap);
// Returns the source bitmap.
const SkBitmap& GetBitmap();
// Evicts bitmap_ from memory.
void EvictBitmapFromMemory();
// Returns true if the source bitmap has been evicted from memory.
bool BitmapHasBeenEvictedFromMemory();
// Returns a list of rectangles to be drawn for |frame|.
FrameSrcDstRects GetRectanglesForFrame(int frame);
// Returns the unscaled size of an individual sprite.
gfx::Size GetUnscaledSpriteSize();
// Returns the scaled size of an individual sprite.
gfx::Size GetScaledSpriteSize();
// Returns the total number of frames in the sprite animation.
int GetFrameCount();
// Returns the memory usage of the bitmap.
size_t EstimateMemoryUsage() const;
SkBitmap bitmap_;
SrcDstRects src_dst_rects_;
gfx::Size unscaled_sprite_size_;
gfx::Size scaled_sprite_size_;
} // namespace ui