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using Ryujinx.Graphics.Gal;
using Ryujinx.Graphics.Memory;
using System;
namespace Ryujinx.Graphics.Texture
{
static class TextureFactory
{
public static GalImage MakeTexture(NvGpuVmm Vmm, long TicPosition)
{
int[] Tic = ReadWords(Vmm, TicPosition, 8);
GalImageFormat Format = GetImageFormat(Tic);
GalTextureSource XSource = (GalTextureSource)((Tic[0] >> 19) & 7);
GalTextureSource YSource = (GalTextureSource)((Tic[0] >> 22) & 7);
GalTextureSource ZSource = (GalTextureSource)((Tic[0] >> 25) & 7);
GalTextureSource WSource = (GalTextureSource)((Tic[0] >> 28) & 7);
TextureSwizzle Swizzle = (TextureSwizzle)((Tic[2] >> 21) & 7);
GalMemoryLayout Layout;
if (Swizzle == TextureSwizzle.BlockLinear ||
Swizzle == TextureSwizzle.BlockLinearColorKey)
{
Layout = GalMemoryLayout.BlockLinear;
}
else
{
Layout = GalMemoryLayout.Pitch;
}
int BlockHeightLog2 = (Tic[3] >> 3) & 7;
int TileWidthLog2 = (Tic[3] >> 10) & 7;
int BlockHeight = 1 << BlockHeightLog2;
int TileWidth = 1 << TileWidthLog2;
int Width = (Tic[4] & 0xffff) + 1;
int Height = (Tic[5] & 0xffff) + 1;
GalImage Image = new GalImage(
Width,
Height,
TileWidth,
BlockHeight,
Layout,
Format,
XSource,
YSource,
ZSource,
WSource);
if (Layout == GalMemoryLayout.Pitch)
{
Image.Pitch = (Tic[3] & 0xffff) << 5;
}
return Image;
}
public static GalTextureSampler MakeSampler(NvGpu Gpu, NvGpuVmm Vmm, long TscPosition)
{
int[] Tsc = ReadWords(Vmm, TscPosition, 8);
GalTextureWrap AddressU = (GalTextureWrap)((Tsc[0] >> 0) & 7);
GalTextureWrap AddressV = (GalTextureWrap)((Tsc[0] >> 3) & 7);
GalTextureWrap AddressP = (GalTextureWrap)((Tsc[0] >> 6) & 7);
GalTextureFilter MagFilter = (GalTextureFilter) ((Tsc[1] >> 0) & 3);
GalTextureFilter MinFilter = (GalTextureFilter) ((Tsc[1] >> 4) & 3);
GalTextureMipFilter MipFilter = (GalTextureMipFilter)((Tsc[1] >> 6) & 3);
GalColorF BorderColor = new GalColorF(
BitConverter.Int32BitsToSingle(Tsc[4]),
BitConverter.Int32BitsToSingle(Tsc[5]),
BitConverter.Int32BitsToSingle(Tsc[6]),
BitConverter.Int32BitsToSingle(Tsc[7]));
return new GalTextureSampler(
AddressU,
AddressV,
AddressP,
MinFilter,
MagFilter,
MipFilter,
BorderColor);
}
private static GalImageFormat GetImageFormat(int[] Tic)
{
GalTextureType RType = (GalTextureType)((Tic[0] >> 7) & 7);
GalTextureType GType = (GalTextureType)((Tic[0] >> 10) & 7);
GalTextureType BType = (GalTextureType)((Tic[0] >> 13) & 7);
GalTextureType AType = (GalTextureType)((Tic[0] >> 16) & 7);
GalTextureFormat Format = (GalTextureFormat)(Tic[0] & 0x7f);
bool ConvSrgb = ((Tic[4] >> 22) & 1) != 0;
return ImageUtils.ConvertTexture(Format, RType, GType, BType, AType, ConvSrgb);
}
private static int[] ReadWords(NvGpuVmm Vmm, long Position, int Count)
{
int[] Words = new int[Count];
for (int Index = 0; Index < Count; Index++, Position += 4)
{
Words[Index] = Vmm.ReadInt32(Position);
}
return Words;
}
}
}
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