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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#pragma once
#include <memory>
#include "flutter/fml/closure.h"
#include "flutter/fml/macros.h"
#include "impeller/geometry/point.h"
#include "impeller/renderer/renderer.h"
#include "impeller/renderer/texture.h"
namespace impeller {
class PlaygroundImpl;
enum class PlaygroundBackend {
kMetal,
kOpenGLES,
kVulkan,
};
std::string PlaygroundBackendToString(PlaygroundBackend backend);
class Playground {
public:
using SinglePassCallback = std::function<bool(RenderPass& pass)>;
explicit Playground();
virtual ~Playground();
static constexpr bool is_enabled() { return is_enabled_; }
static bool ShouldOpenNewPlaygrounds();
void SetupWindow(PlaygroundBackend backend);
void TeardownWindow();
Point GetCursorPosition() const;
ISize GetWindowSize() const;
Point GetContentScale() const;
std::shared_ptr<Context> GetContext() const;
bool OpenPlaygroundHere(const Renderer::RenderCallback& render_callback);
bool OpenPlaygroundHere(SinglePassCallback pass_callback);
std::optional<DecompressedImage> LoadFixtureImageRGBA(
const char* fixture_name) const;
std::shared_ptr<Texture> CreateTextureForFixture(
const char* fixture_name,
bool enable_mipmapping = false) const;
std::shared_ptr<Texture> CreateTextureCubeForFixture(
std::array<const char*, 6> fixture_names) const;
static bool SupportsBackend(PlaygroundBackend backend);
virtual std::unique_ptr<fml::Mapping> OpenAssetAsMapping(
std::string asset_name) const = 0;
virtual std::string GetWindowTitle() const = 0;
private:
#if IMPELLER_ENABLE_PLAYGROUND
static const bool is_enabled_ = true;
#else
static const bool is_enabled_ = false;
#endif // IMPELLER_ENABLE_PLAYGROUND
struct GLFWInitializer;
std::unique_ptr<GLFWInitializer> glfw_initializer_;
std::unique_ptr<PlaygroundImpl> impl_;
std::unique_ptr<Renderer> renderer_;
Point cursor_position_;
ISize window_size_ = ISize{1024, 768};
void SetCursorPosition(Point pos);
void SetWindowSize(ISize size);
FML_DISALLOW_COPY_AND_ASSIGN(Playground);
};
} // namespace impeller