package com.mojang.blaze3d.textures;

import com.mojang.blaze3d.GpuFormat;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

public abstract class GpuTexture implements AutoCloseable {
	public static final int USAGE_COPY_DST = 1;
	public static final int USAGE_COPY_SRC = 2;
	public static final int USAGE_TEXTURE_BINDING = 4;
	public static final int USAGE_RENDER_ATTACHMENT = 8;
	public static final int USAGE_CUBEMAP_COMPATIBLE = 16;
	private final GpuFormat format;
	private final int width;
	private final int height;
	private final int depthOrLayers;
	private final int mipLevels;
	@GpuTexture.Usage
	private final int usage;
	private final String label;

	public GpuTexture(
		@GpuTexture.Usage final int usage,
		final String label,
		final GpuFormat format,
		final int width,
		final int height,
		final int depthOrLayers,
		final int mipLevels
	) {
		this.usage = usage;
		this.label = label;
		this.format = format;
		this.width = width;
		this.height = height;
		this.depthOrLayers = depthOrLayers;
		this.mipLevels = mipLevels;
	}

	public int getWidth(final int mipLevel) {
		return this.width >> mipLevel;
	}

	public int getHeight(final int mipLevel) {
		return this.height >> mipLevel;
	}

	public int getDepthOrLayers() {
		return this.depthOrLayers;
	}

	public int getMipLevels() {
		return this.mipLevels;
	}

	public GpuFormat getFormat() {
		return this.format;
	}

	@GpuTexture.Usage
	public int usage() {
		return this.usage;
	}

	public String getLabel() {
		return this.label;
	}

	public abstract void close();

	public abstract boolean isClosed();

	@Retention(RetentionPolicy.CLASS)
	@Target({ElementType.TYPE_USE})
	public @interface Usage {
	}
}