// Copyright (c) 2012- PPSSPP Project.

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.

#pragma once

#include "ppsspp_config.h"

#if PPSSPP_PLATFORM(ANDROID)

#include <EGL/egl.h>

#include "Common/GPU/GraphicsContext.h"
#include "Common/GPU/OpenGL/GLRenderManager.h"

// An OpenGL ES context with no window, for running headless from adb shell. It renders into an
// EGL pbuffer, which stands in for the backbuffer.
class AndroidHeadlessGLContext : public GraphicsContext {
public:
	AndroidHeadlessGLContext(int width, int height) : width_(width), height_(height) {}
	~AndroidHeadlessGLContext() { delete draw_; }

	bool InitAPI(void *wnd, std::string *deviceNameSetting, std::string *errorMessage) override;
	bool InitSurface(WindowSystem winsys, void *data1, void *data2, std::string *errorMessage) override {
		return true;
	}
	void ShutdownSurface() override;

	bool NeedsSeparateEmuThread() const override { return true; }

	Draw::DrawContext *GetDrawContext() override {
		return draw_;
	}

	void ThreadStart() override {
		renderManager_->ThreadStart(draw_);
	}

	bool ThreadFrame() override {
		return renderManager_->ThreadFrame();
	}

	void ThreadEnd() override {
		renderManager_->ThreadEnd();
	}

	void Resize() override {}

	// Call from emu thread
	void NotifyEmuThreadExit() override {
		renderManager_->NotifyEmuThreadExit();
	}

private:
	Draw::DrawContext *draw_ = nullptr;
	GLRenderManager *renderManager_ = nullptr;
	EGLDisplay display_ = EGL_NO_DISPLAY;
	EGLSurface surface_ = EGL_NO_SURFACE;
	EGLContext context_ = EGL_NO_CONTEXT;
	int width_;
	int height_;
};

#endif