mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-09-10 17:58:50 +02:00
144 lines
4.5 KiB
C#
144 lines
4.5 KiB
C#
using ChocolArm64.Memory;
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using Ryujinx.Graphics.Gal;
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using System;
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namespace Ryujinx.Graphics.Gpu
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{
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public static class TextureReader
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{
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public static byte[] Read(AMemory Memory, Texture Texture)
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{
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switch (Texture.Format)
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{
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case GalTextureFormat.A8B8G8R8: return Read4Bpp (Memory, Texture);
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case GalTextureFormat.A1B5G5R5: return Read2Bpp (Memory, Texture);
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case GalTextureFormat.B5G6R5: return Read2Bpp (Memory, Texture);
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case GalTextureFormat.BC1: return Read8Bpt4x4 (Memory, Texture);
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case GalTextureFormat.BC2: return Read16Bpt4x4(Memory, Texture);
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case GalTextureFormat.BC3: return Read16Bpt4x4(Memory, Texture);
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case GalTextureFormat.BC4: return Read8Bpt4x4 (Memory, Texture);
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case GalTextureFormat.BC5: return Read16Bpt4x4(Memory, Texture);
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}
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throw new NotImplementedException(Texture.Format.ToString());
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}
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private unsafe static byte[] Read2Bpp(AMemory Memory, Texture Texture)
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{
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int Width = Texture.Width;
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int Height = Texture.Height;
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byte[] Output = new byte[Width * Height * 2];
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ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, Width, 2);
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fixed (byte* BuffPtr = Output)
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{
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long OutOffs = 0;
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for (int Y = 0; Y < Height; Y++)
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for (int X = 0; X < Width; X++)
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{
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long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
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short Pixel = Memory.ReadInt16Unchecked(Texture.Position + Offset);
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*(short*)(BuffPtr + OutOffs) = Pixel;
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OutOffs += 2;
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}
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}
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return Output;
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}
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private unsafe static byte[] Read4Bpp(AMemory Memory, Texture Texture)
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{
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int Width = Texture.Width;
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int Height = Texture.Height;
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byte[] Output = new byte[Width * Height * 4];
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ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, Width, 4);
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fixed (byte* BuffPtr = Output)
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{
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long OutOffs = 0;
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for (int Y = 0; Y < Height; Y++)
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for (int X = 0; X < Width; X++)
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{
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long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
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int Pixel = Memory.ReadInt32Unchecked(Texture.Position + Offset);
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*(int*)(BuffPtr + OutOffs) = Pixel;
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OutOffs += 4;
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}
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}
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return Output;
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}
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private unsafe static byte[] Read8Bpt4x4(AMemory Memory, Texture Texture)
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{
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int Width = (Texture.Width + 3) / 4;
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int Height = (Texture.Height + 3) / 4;
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byte[] Output = new byte[Width * Height * 8];
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ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, Width, 8);
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fixed (byte* BuffPtr = Output)
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{
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long OutOffs = 0;
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for (int Y = 0; Y < Height; Y++)
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for (int X = 0; X < Width; X++)
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{
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long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
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long Tile = Memory.ReadInt64Unchecked(Texture.Position + Offset);
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*(long*)(BuffPtr + OutOffs) = Tile;
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OutOffs += 8;
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}
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}
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return Output;
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}
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private unsafe static byte[] Read16Bpt4x4(AMemory Memory, Texture Texture)
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{
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int Width = (Texture.Width + 3) / 4;
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int Height = (Texture.Height + 3) / 4;
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byte[] Output = new byte[Width * Height * 16];
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ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, Width, 16);
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fixed (byte* BuffPtr = Output)
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{
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long OutOffs = 0;
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for (int Y = 0; Y < Height; Y++)
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for (int X = 0; X < Width; X++)
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{
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long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
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long Tile0 = Memory.ReadInt64Unchecked(Texture.Position + Offset + 0);
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long Tile1 = Memory.ReadInt64Unchecked(Texture.Position + Offset + 8);
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*(long*)(BuffPtr + OutOffs + 0) = Tile0;
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*(long*)(BuffPtr + OutOffs + 8) = Tile1;
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OutOffs += 16;
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}
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}
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return Output;
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}
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}
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}
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