1 files changed, 398 insertions, 0 deletions
diff --git a/Ryujinx.Graphics/Texture/TextureReader.cs b/Ryujinx.Graphics/Texture/TextureReader.cs
new file mode 100644
index 00000000..dbaed1a8
--- /dev/null
+++ b/Ryujinx.Graphics/Texture/TextureReader.cs
@@ -0,0 +1,398 @@
+using ChocolArm64.Memory;
+using Ryujinx.Graphics.Gal;
+using System;
+
+namespace Ryujinx.Graphics.Texture
+{
+    delegate byte[] TextureReaderDelegate(IAMemory Memory, TextureInfo Texture);
+
+    public static class TextureReader
+    {
+        public static byte[] Read(IAMemory Memory, TextureInfo Texture)
+        {
+            TextureReaderDelegate Reader = ImageUtils.GetReader(Texture.Format);
+
+            return Reader(Memory, Texture);
+        }
+
+        internal unsafe static byte[] Read1Bpp(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = Texture.Width;
+            int Height = Texture.Height;
+
+            byte[] Output = new byte[Width * Height];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 1);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    byte Pixel = CpuMem.ReadByte(Position + Offset);
+
+                    *(BuffPtr + OutOffs) = Pixel;
+
+                    OutOffs++;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read5551(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = Texture.Width;
+            int Height = Texture.Height;
+
+            byte[] Output = new byte[Width * Height * 2];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 2);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    uint Pixel = (uint)CpuMem.ReadInt16(Position + Offset);
+
+                    Pixel = (Pixel & 0x001f) << 11 |
+                            (Pixel & 0x03e0) << 1  |
+                            (Pixel & 0x7c00) >> 9  |
+                            (Pixel & 0x8000) >> 15;
+
+                    *(short*)(BuffPtr + OutOffs) = (short)Pixel;
+
+                    OutOffs += 2;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read565(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = Texture.Width;
+            int Height = Texture.Height;
+
+            byte[] Output = new byte[Width * Height * 2];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 2);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    uint Pixel = (uint)CpuMem.ReadInt16(Position + Offset);
+
+                    Pixel = (Pixel & 0x001f) << 11 |
+                            (Pixel & 0x07e0)       |
+                            (Pixel & 0xf800) >> 11;
+
+                    *(short*)(BuffPtr + OutOffs) = (short)Pixel;
+
+                    OutOffs += 2;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read2Bpp(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = Texture.Width;
+            int Height = Texture.Height;
+
+            byte[] Output = new byte[Width * Height * 2];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 2);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    short Pixel = CpuMem.ReadInt16(Position + Offset);
+
+                    *(short*)(BuffPtr + OutOffs) = Pixel;
+
+                    OutOffs += 2;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read4Bpp(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = Texture.Width;
+            int Height = Texture.Height;
+
+            byte[] Output = new byte[Width * Height * 4];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 4);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    int Pixel = CpuMem.ReadInt32(Position + Offset);
+
+                    *(int*)(BuffPtr + OutOffs) = Pixel;
+
+                    OutOffs += 4;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read8Bpp(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = Texture.Width;
+            int Height = Texture.Height;
+
+            byte[] Output = new byte[Width * Height * 8];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 8);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    long Pixel = CpuMem.ReadInt64(Position + Offset);
+
+                    *(long*)(BuffPtr + OutOffs) = Pixel;
+
+                    OutOffs += 8;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read16Bpp(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = Texture.Width;
+            int Height = Texture.Height;
+
+            byte[] Output = new byte[Width * Height * 16];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 16);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    long PxLow  = CpuMem.ReadInt64(Position + Offset + 0);
+                    long PxHigh = CpuMem.ReadInt64(Position + Offset + 8);
+
+                    *(long*)(BuffPtr + OutOffs + 0) = PxLow;
+                    *(long*)(BuffPtr + OutOffs + 8) = PxHigh;
+
+                    OutOffs += 16;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read8Bpt4x4(IAMemory Memory, TextureInfo Texture)
+        {
+            int Width  = (Texture.Width  + 3) / 4;
+            int Height = (Texture.Height + 3) / 4;
+
+            byte[] Output = new byte[Width * Height * 8];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 4, 8);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    long Tile = CpuMem.ReadInt64(Position + Offset);
+
+                    *(long*)(BuffPtr + OutOffs) = Tile;
+
+                    OutOffs += 8;
+                }
+            }
+
+            return Output;
+        }
+
+        internal unsafe static byte[] Read16BptCompressedTexture(IAMemory Memory, TextureInfo Texture, int BlockWidth, int BlockHeight)
+        {
+            int Width  = (Texture.Width  + (BlockWidth - 1)) / BlockWidth;
+            int Height = (Texture.Height + (BlockHeight - 1)) / BlockHeight;
+
+            byte[] Output = new byte[Width * Height * 16];
+
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, BlockWidth, 16);
+
+            (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
+                Memory,
+                Texture.Position);
+
+            fixed (byte* BuffPtr = Output)
+            {
+                long OutOffs = 0;
+
+                for (int Y = 0; Y < Height; Y++)
+                for (int X = 0; X < Width;  X++)
+                {
+                    long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);
+
+                    long Tile0 = CpuMem.ReadInt64(Position + Offset + 0);
+                    long Tile1 = CpuMem.ReadInt64(Position + Offset + 8);
+
+                    *(long*)(BuffPtr + OutOffs + 0) = Tile0;
+                    *(long*)(BuffPtr + OutOffs + 8) = Tile1;
+
+                    OutOffs += 16;
+                }
+            }
+
+            return Output;
+        }
+
+        internal static byte[] Read16BptCompressedTexture4x4(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 4, 4);
+        }
+
+        internal static byte[] Read16BptCompressedTexture5x5(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 5, 5);
+        }
+
+        internal static byte[] Read16BptCompressedTexture6x6(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 6, 6);
+        }
+
+        internal static byte[] Read16BptCompressedTexture8x8(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 8, 8);
+        }
+
+        internal static byte[] Read16BptCompressedTexture10x10(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 10, 10);
+        }
+
+        internal static byte[] Read16BptCompressedTexture12x12(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 12, 12);
+        }
+
+        internal static byte[] Read16BptCompressedTexture5x4(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 5, 4);
+        }
+
+        internal static byte[] Read16BptCompressedTexture6x5(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 6, 5);
+        }
+
+        internal static byte[] Read16BptCompressedTexture8x6(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 8, 6);
+        }
+
+        internal static byte[] Read16BptCompressedTexture10x8(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 10, 8);
+        }
+
+        internal static byte[] Read16BptCompressedTexture12x10(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 12, 10);
+        }
+
+        internal static byte[] Read16BptCompressedTexture8x5(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 5, 5);
+        }
+
+        internal static byte[] Read16BptCompressedTexture10x5(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 10, 5);
+        }
+
+        internal static byte[] Read16BptCompressedTexture10x6(IAMemory Memory, TextureInfo Texture)
+        {
+            return Read16BptCompressedTexture(Memory, Texture, 10, 6);
+        }
+    }
+}