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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/ByteBuffer.h>
#include <AK/OwnPtr.h>
#include <AK/RefCounted.h>
#include <AK/RefPtr.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Size.h>
namespace Gfx {
class Bitmap;
static constexpr size_t maximum_width_for_decoded_images = 16384;
static constexpr size_t maximum_height_for_decoded_images = 16384;
struct ImageFrameDescriptor {
RefPtr<Bitmap> image;
int duration { 0 };
};
class ImageDecoderPlugin {
public:
virtual ~ImageDecoderPlugin() { }
virtual IntSize size() = 0;
virtual RefPtr<Gfx::Bitmap> bitmap() = 0;
virtual void set_volatile() = 0;
[[nodiscard]] virtual bool set_nonvolatile() = 0;
virtual bool sniff() = 0;
virtual bool is_animated() = 0;
virtual size_t loop_count() = 0;
virtual size_t frame_count() = 0;
virtual ImageFrameDescriptor frame(size_t i) = 0;
protected:
ImageDecoderPlugin() { }
};
class ImageDecoder : public RefCounted<ImageDecoder> {
public:
static NonnullRefPtr<ImageDecoder> create(const u8* data, size_t size) { return adopt_ref(*new ImageDecoder(data, size)); }
static NonnullRefPtr<ImageDecoder> create(const ByteBuffer& data) { return adopt_ref(*new ImageDecoder(data.data(), data.size())); }
~ImageDecoder();
bool is_valid() const { return m_plugin; }
IntSize size() const { return m_plugin ? m_plugin->size() : IntSize(); }
int width() const { return size().width(); }
int height() const { return size().height(); }
RefPtr<Gfx::Bitmap> bitmap() const;
void set_volatile()
{
if (m_plugin)
m_plugin->set_volatile();
}
[[nodiscard]] bool set_nonvolatile() { return m_plugin ? m_plugin->set_nonvolatile() : false; }
bool sniff() const { return m_plugin ? m_plugin->sniff() : false; }
bool is_animated() const { return m_plugin ? m_plugin->is_animated() : false; }
size_t loop_count() const { return m_plugin ? m_plugin->loop_count() : 0; }
size_t frame_count() const { return m_plugin ? m_plugin->frame_count() : 0; }
ImageFrameDescriptor frame(size_t i) const { return m_plugin ? m_plugin->frame(i) : ImageFrameDescriptor(); }
private:
ImageDecoder(const u8*, size_t);
mutable OwnPtr<ImageDecoderPlugin> m_plugin;
};
}
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