diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Graphics.Vulkan/BufferUsageBitmap.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Graphics.Vulkan/BufferUsageBitmap.cs')
| -rw-r--r-- | src/Ryujinx.Graphics.Vulkan/BufferUsageBitmap.cs | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Vulkan/BufferUsageBitmap.cs b/src/Ryujinx.Graphics.Vulkan/BufferUsageBitmap.cs new file mode 100644 index 00000000..920501d3 --- /dev/null +++ b/src/Ryujinx.Graphics.Vulkan/BufferUsageBitmap.cs @@ -0,0 +1,77 @@ +namespace Ryujinx.Graphics.Vulkan +{ + internal class BufferUsageBitmap + { + private BitMap _bitmap; + private int _size; + private int _granularity; + private int _bits; + + private int _intsPerCb; + private int _bitsPerCb; + + public BufferUsageBitmap(int size, int granularity) + { + _size = size; + _granularity = granularity; + _bits = (size + (granularity - 1)) / granularity; + + _intsPerCb = (_bits + (BitMap.IntSize - 1)) / BitMap.IntSize; + _bitsPerCb = _intsPerCb * BitMap.IntSize; + + _bitmap = new BitMap(_bitsPerCb * CommandBufferPool.MaxCommandBuffers); + } + + public void Add(int cbIndex, int offset, int size) + { + if (size == 0) + { + return; + } + + // Some usages can be out of bounds (vertex buffer on amd), so bound if necessary. + if (offset + size > _size) + { + size = _size - offset; + } + + int cbBase = cbIndex * _bitsPerCb; + int start = cbBase + offset / _granularity; + int end = cbBase + (offset + size - 1) / _granularity; + + _bitmap.SetRange(start, end); + } + + public bool OverlapsWith(int cbIndex, int offset, int size) + { + if (size == 0) + { + return false; + } + + int cbBase = cbIndex * _bitsPerCb; + int start = cbBase + offset / _granularity; + int end = cbBase + (offset + size - 1) / _granularity; + + return _bitmap.IsSet(start, end); + } + + public bool OverlapsWith(int offset, int size) + { + for (int i = 0; i < CommandBufferPool.MaxCommandBuffers; i++) + { + if (OverlapsWith(i, offset, size)) + { + return true; + } + } + + return false; + } + + public void Clear(int cbIndex) + { + _bitmap.ClearInt(cbIndex * _intsPerCb, (cbIndex + 1) * _intsPerCb - 1); + } + } +} |