niko
136 lines
3.4 KiB
C#
136 lines
3.4 KiB
C#
using System;
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namespace Hjg.Pngcs.Chunks
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{
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// Token: 0x0200002E RID: 46
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public class PngChunkPLTE : PngChunkSingle
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{
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// Token: 0x0600019B RID: 411 RVA: 0x00006D4C File Offset: 0x00004F4C
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public PngChunkPLTE(ImageInfo info)
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: base("PLTE", info)
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{
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this.nentries = 0;
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}
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// Token: 0x0600019C RID: 412 RVA: 0x00006D61 File Offset: 0x00004F61
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public override PngChunk.ChunkOrderingConstraint GetOrderingConstraint()
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{
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return PngChunk.ChunkOrderingConstraint.NA;
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}
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// Token: 0x0600019D RID: 413 RVA: 0x00006D64 File Offset: 0x00004F64
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public override ChunkRaw CreateRawChunk()
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{
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int num = 3 * this.nentries;
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int[] array = new int[3];
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ChunkRaw chunkRaw = base.createEmptyChunk(num, true);
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int i = 0;
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int num2 = 0;
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while (i < this.nentries)
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{
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this.GetEntryRgb(i, array);
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chunkRaw.Data[num2++] = (byte)array[0];
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chunkRaw.Data[num2++] = (byte)array[1];
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chunkRaw.Data[num2++] = (byte)array[2];
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i++;
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}
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return chunkRaw;
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}
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// Token: 0x0600019E RID: 414 RVA: 0x00006DE0 File Offset: 0x00004FE0
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public override void ParseFromRaw(ChunkRaw chunk)
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{
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this.SetNentries(chunk.Length / 3);
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int i = 0;
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int num = 0;
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while (i < this.nentries)
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{
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this.SetEntry(i, (int)(chunk.Data[num++] & byte.MaxValue), (int)(chunk.Data[num++] & byte.MaxValue), (int)(chunk.Data[num++] & byte.MaxValue));
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i++;
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}
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}
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// Token: 0x0600019F RID: 415 RVA: 0x00006E4C File Offset: 0x0000504C
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public override void CloneDataFromRead(PngChunk other)
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{
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PngChunkPLTE pngChunkPLTE = (PngChunkPLTE)other;
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this.SetNentries(pngChunkPLTE.GetNentries());
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Array.Copy(pngChunkPLTE.entries, 0, this.entries, 0, this.nentries);
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}
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// Token: 0x060001A0 RID: 416 RVA: 0x00006E88 File Offset: 0x00005088
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public void SetNentries(int nentries)
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{
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this.nentries = nentries;
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if (nentries < 1 || nentries > 256)
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{
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throw new PngjException("invalid pallette - nentries=" + nentries);
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}
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if (this.entries == null || this.entries.Length != nentries)
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{
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this.entries = new int[nentries];
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}
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}
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// Token: 0x060001A1 RID: 417 RVA: 0x00006EDD File Offset: 0x000050DD
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public int GetNentries()
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{
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return this.nentries;
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}
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// Token: 0x060001A2 RID: 418 RVA: 0x00006EE5 File Offset: 0x000050E5
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public void SetEntry(int n, int r, int g, int b)
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{
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this.entries[n] = (r << 16) | (g << 8) | b;
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}
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// Token: 0x060001A3 RID: 419 RVA: 0x00006EFA File Offset: 0x000050FA
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public int GetEntry(int n)
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{
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return this.entries[n];
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}
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// Token: 0x060001A4 RID: 420 RVA: 0x00006F04 File Offset: 0x00005104
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public void GetEntryRgb(int index, int[] rgb, int offset)
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{
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int num = this.entries[index];
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rgb[offset] = (num & 16711680) >> 16;
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rgb[offset + 1] = (num & 65280) >> 8;
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rgb[offset + 2] = num & 255;
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}
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// Token: 0x060001A5 RID: 421 RVA: 0x00006F41 File Offset: 0x00005141
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public void GetEntryRgb(int n, int[] rgb)
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{
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this.GetEntryRgb(n, rgb, 0);
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}
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// Token: 0x060001A6 RID: 422 RVA: 0x00006F4C File Offset: 0x0000514C
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public int MinBitDepth()
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{
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if (this.nentries <= 2)
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{
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return 1;
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}
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if (this.nentries <= 4)
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{
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return 2;
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}
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if (this.nentries <= 16)
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{
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return 4;
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}
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return 8;
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}
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// Token: 0x040000E1 RID: 225
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public const string ID = "PLTE";
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// Token: 0x040000E2 RID: 226
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private int nentries;
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// Token: 0x040000E3 RID: 227
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private int[] entries;
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}
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}
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