BackgroundRenderer.h

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// SPDX-FileCopyrightText: 2026 Valentin Eloy
// SPDX-License-Identifier: GPL-3.0-or-later
 
#pragma once
 
#include "HMI/Graphics/ComposedScene.h"
#include "HMI/Graphics/RenderMode.h"

 
namespace hmi {

struct BackgroundFit {
    float u0 = 0.0f;
    float v0 = 0.0f;
    float u1 = 1.0f;
    float v1 = 1.0f;
};

[[nodiscard]] BackgroundFit computeBackgroundFit(float imageWidth, float imageHeight,
                                                 float targetWidth, float targetHeight) noexcept;

struct BackgroundTexture {
    TextureHandle texture = nullptr;
    int width = 0;
    int height = 0;
};

void composeBackground(ComposedScene& scene, const BackgroundTexture& background, int levelWidth,
                       int levelHeight, RenderMode mode);
 
}  // namespace hmi