49 lines
1.5 KiB
C#
49 lines
1.5 KiB
C#
using System;
|
|
using System.Runtime.InteropServices;
|
|
|
|
namespace Ryujinx.Graphics.Vulkan
|
|
{
|
|
class FormatConverter
|
|
{
|
|
public static void ConvertD24S8ToD32FS8(Span<byte> output, ReadOnlySpan<byte> input)
|
|
{
|
|
const float UnormToFloat = 1f / 0xffffff;
|
|
|
|
Span<uint> outputUint = MemoryMarshal.Cast<byte, uint>(output);
|
|
ReadOnlySpan<uint> inputUint = MemoryMarshal.Cast<byte, uint>(input);
|
|
|
|
int i = 0;
|
|
|
|
for (; i < inputUint.Length; i++)
|
|
{
|
|
uint depthStencil = inputUint[i];
|
|
uint depth = depthStencil >> 8;
|
|
uint stencil = depthStencil & 0xff;
|
|
|
|
int j = i * 2;
|
|
|
|
outputUint[j] = (uint)BitConverter.SingleToInt32Bits(depth * UnormToFloat);
|
|
outputUint[j + 1] = stencil;
|
|
}
|
|
}
|
|
|
|
public static void ConvertD32FS8ToD24S8(Span<byte> output, ReadOnlySpan<byte> input)
|
|
{
|
|
Span<uint> outputUint = MemoryMarshal.Cast<byte, uint>(output);
|
|
ReadOnlySpan<uint> inputUint = MemoryMarshal.Cast<byte, uint>(input);
|
|
|
|
int i = 0;
|
|
|
|
for (; i < inputUint.Length; i += 2)
|
|
{
|
|
float depth = BitConverter.Int32BitsToSingle((int)inputUint[i]);
|
|
uint stencil = inputUint[i + 1];
|
|
uint depthStencil = (Math.Clamp((uint)(depth * 0xffffff), 0, 0xffffff) << 8) | (stencil & 0xff);
|
|
|
|
int j = i >> 1;
|
|
|
|
outputUint[j] = depthStencil;
|
|
}
|
|
}
|
|
}
|
|
}
|