flycast/core/rend/imgui_driver.h

/*
	Copyright 2021 flyinghead

	This file is part of Flycast.

    Flycast 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, either version 2 of the License, or
    (at your option) any later version.

    Flycast 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 for more details.

    You should have received a copy of the GNU General Public License
    along with Flycast.  If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "imgui/imgui.h"
#include "gui.h"
#include <memory>

class ImGuiDriver
{
public:
	ImGuiDriver() {
		gui_initFonts();
	}
	virtual ~ImGuiDriver() = default;

	virtual void newFrame() = 0;
	virtual void renderDrawData(ImDrawData* drawData) = 0;

	virtual void displayVmus() {}
	virtual void displayCrosshairs() {}

	virtual void present() = 0;
	virtual void setFrameRendered() {}

	virtual ImTextureID getTexture(const std::string& name) = 0;
	virtual ImTextureID updateTexture(const std::string& name, const u8 *data, int width, int height) = 0;
};

extern std::unique_ptr<ImGuiDriver> imguiDriver;