using Ryujinx.Graphics.Gpu.Shader.Cache.Definition; using System.Runtime.CompilerServices; using System.Runtime.Intrinsics; namespace Ryujinx.Graphics.Gpu.Image { /// <summary> /// Maxwell texture descriptor, as stored on the GPU texture pool memory region. /// </summary> struct TextureDescriptor : ITextureDescriptor { #pragma warning disable CS0649 public uint Word0; public uint Word1; public uint Word2; public uint Word3; public uint Word4; public uint Word5; public uint Word6; public uint Word7; #pragma warning restore CS0649 /// <summary> /// Unpacks Maxwell texture format integer. /// </summary> /// <returns>The texture format integer</returns> public uint UnpackFormat() { return Word0 & 0x8007ffff; } /// <summary> /// Unpacks the swizzle component for the texture red color channel. /// </summary> /// <returns>The swizzle component</returns> public TextureComponent UnpackSwizzleR() { return(TextureComponent)((Word0 >> 19) & 7); } /// <summary> /// Unpacks the swizzle component for the texture green color channel. /// </summary> /// <returns>The swizzle component</returns> public TextureComponent UnpackSwizzleG() { return(TextureComponent)((Word0 >> 22) & 7); } /// <summary> /// Unpacks the swizzle component for the texture blue color channel. /// </summary> /// <returns>The swizzle component</returns> public TextureComponent UnpackSwizzleB() { return(TextureComponent)((Word0 >> 25) & 7); } /// <summary> /// Unpacks the swizzle component for the texture alpha color channel. /// </summary> /// <returns>The swizzle component</returns> public TextureComponent UnpackSwizzleA() { return(TextureComponent)((Word0 >> 28) & 7); } /// <summary> /// Unpacks the 40-bits texture GPU virtual address. /// </summary> /// <returns>The GPU virtual address</returns> public ulong UnpackAddress() { return Word1 | ((ulong)(Word2 & 0xffff) << 32); } /// <summary> /// Unpacks texture descriptor type for this texture descriptor. /// This defines the texture layout, among other things. /// </summary> /// <returns>The texture descriptor type</returns> public TextureDescriptorType UnpackTextureDescriptorType() { return (TextureDescriptorType)((Word2 >> 21) & 7); } /// <summary> /// Unpacks the texture stride (bytes per line) for linear textures only. /// Always 32-bytes aligned. /// </summary> /// <returns>The linear texture stride</returns> public int UnpackStride() { return (int)(Word3 & 0xffff) << 5; } /// <summary> /// Unpacks the GOB block size in X (width) for block linear textures. /// Must be always 1, ignored by the GPU. /// </summary> /// <returns>THe GOB block X size</returns> public int UnpackGobBlocksInX() { return 1 << (int)(Word3 & 7); } /// <summary> /// Unpacks the GOB block size in Y (height) for block linear textures. /// Must be always a power of 2, with a maximum value of 32. /// </summary> /// <returns>THe GOB block Y size</returns> public int UnpackGobBlocksInY() { return 1 << (int)((Word3 >> 3) & 7); } /// <summary> /// Unpacks the GOB block size in Z (depth) for block linear textures. /// Must be always a power of 2, with a maximum value of 32. /// Must be 1 for any texture target other than 3D textures. /// </summary> /// <returns>The GOB block Z size</returns> public int UnpackGobBlocksInZ() { return 1 << (int)((Word3 >> 6) & 7); } /// <summary> /// Number of GOB blocks per tile in the X direction. /// This is only used for sparse textures, should be 1 otherwise. /// </summary> /// <returns>The number of GOB blocks per tile</returns> public int UnpackGobBlocksInTileX() { return 1 << (int)((Word3 >> 10) & 7); } /// <summary> /// Unpacks the number of mipmap levels of the texture. /// </summary> /// <returns>The number of mipmap levels</returns> public int UnpackLevels() { return (int)(Word3 >> 28) + 1; } /// <summary> /// Unpack the base level texture width size. /// </summary> /// <returns>The texture width</returns> public int UnpackWidth() { return (int)(Word4 & 0xffff) + 1; } /// <summary> /// Unpacks the texture sRGB format flag. /// </summary> /// <returns>True if the texture is sRGB, false otherwise</returns> public bool UnpackSrgb() { return (Word4 & (1 << 22)) != 0; } /// <summary> /// Unpacks the texture target. /// </summary> /// <returns>The texture target</returns> public TextureTarget UnpackTextureTarget() { return (TextureTarget)((Word4 >> 23) & 0xf); } /// <summary> /// Unpack the base level texture height size, or array layers for 1D array textures. /// Should be ignored for 1D or buffer textures. /// </summary> /// <returns>The texture height or layers count</returns> public int UnpackHeight() { return (int)(Word5 & 0xffff) + 1; } /// <summary> /// Unpack the base level texture depth size, number of array layers or cubemap faces. /// The meaning of this value depends on the texture target. /// </summary> /// <returns>The texture depth, layer or faces count</returns> public int UnpackDepth() { return (int)((Word5 >> 16) & 0x3fff) + 1; } /// <summary> /// Unpacks the texture coordinates normalized flag. /// When this is true, texture coordinates are expected to be in the [0, 1] range on the shader. /// When this is false, texture coordinates are expected to be in the [0, W], [0, H] and [0, D] range. /// It must be set to false (by the guest driver) for rectangle textures. /// </summary> /// <returns>The texture coordinates normalized flag</returns> public bool UnpackTextureCoordNormalized() { return (Word5 & (1 << 31)) != 0; } /// <summary> /// Unpacks the base mipmap level of the texture. /// </summary> /// <returns>The base mipmap level of the texture</returns> public int UnpackBaseLevel() { return (int)(Word7 & 0xf); } /// <summary> /// Unpacks the maximum mipmap level (inclusive) of the texture. /// Usually equal to Levels minus 1. /// </summary> /// <returns>The maximum mipmap level (inclusive) of the texture</returns> public int UnpackMaxLevelInclusive() { return (int)((Word7 >> 4) & 0xf); } /// <summary> /// Unpacks the multisampled texture samples count in each direction. /// Must be ignored for non-multisample textures. /// </summary> /// <returns>The multisample counts enum</returns> public TextureMsaaMode UnpackTextureMsaaMode() { return (TextureMsaaMode)((Word7 >> 8) & 0xf); } /// <summary> /// Create the equivalent of this TextureDescriptor for the shader cache. /// </summary> /// <returns>The equivalent of this TextureDescriptor for the shader cache.</returns> public GuestTextureDescriptor ToCache() { GuestTextureDescriptor result = new GuestTextureDescriptor { Handle = uint.MaxValue, Format = UnpackFormat(), Target = UnpackTextureTarget(), IsSrgb = UnpackSrgb(), IsTextureCoordNormalized = UnpackTextureCoordNormalized(), }; return result; } /// <summary> /// Check if two descriptors are equal. /// </summary> /// <param name="other">The descriptor to compare against</param> /// <returns>True if they are equal, false otherwise</returns> public bool Equals(ref TextureDescriptor other) { return Unsafe.As<TextureDescriptor, Vector256<byte>>(ref this).Equals(Unsafe.As<TextureDescriptor, Vector256<byte>>(ref other)); } } }