using System;

namespace Hjg.Pngcs.Chunks
{
	// Token: 0x02000024 RID: 36
	public class PngChunkGAMA : PngChunkSingle
	{
		// Token: 0x06000146 RID: 326 RVA: 0x0000623D File Offset: 0x0000443D
		public PngChunkGAMA(ImageInfo info)
			: base("gAMA", info)
		{
		}

		// Token: 0x06000147 RID: 327 RVA: 0x0000624B File Offset: 0x0000444B
		public override PngChunk.ChunkOrderingConstraint GetOrderingConstraint()
		{
			return PngChunk.ChunkOrderingConstraint.BEFORE_PLTE_AND_IDAT;
		}

		// Token: 0x06000148 RID: 328 RVA: 0x00006250 File Offset: 0x00004450
		public override ChunkRaw CreateRawChunk()
		{
			ChunkRaw chunkRaw = base.createEmptyChunk(4, true);
			int num = (int)(this.gamma * 100000.0 + 0.5);
			PngHelperInternal.WriteInt4tobytes(num, chunkRaw.Data, 0);
			return chunkRaw;
		}

		// Token: 0x06000149 RID: 329 RVA: 0x00006290 File Offset: 0x00004490
		public override void ParseFromRaw(ChunkRaw chunk)
		{
			if (chunk.Length != 4)
			{
				throw new PngjException("bad chunk " + chunk);
			}
			int num = PngHelperInternal.ReadInt4fromBytes(chunk.Data, 0);
			this.gamma = (double)num / 100000.0;
		}

		// Token: 0x0600014A RID: 330 RVA: 0x000062D6 File Offset: 0x000044D6
		public override void CloneDataFromRead(PngChunk other)
		{
			this.gamma = ((PngChunkGAMA)other).gamma;
		}

		// Token: 0x0600014B RID: 331 RVA: 0x000062E9 File Offset: 0x000044E9
		public double GetGamma()
		{
			return this.gamma;
		}

		// Token: 0x0600014C RID: 332 RVA: 0x000062F1 File Offset: 0x000044F1
		public void SetGamma(double gamma)
		{
			this.gamma = gamma;
		}

		// Token: 0x040000B4 RID: 180
		public const string ID = "gAMA";

		// Token: 0x040000B5 RID: 181
		private double gamma;
	}
}