diff options
| author | gdk <gab.dark.100@gmail.com> | 2019-10-13 03:02:07 -0300 |
|---|---|---|
| committer | Thog <thog@protonmail.com> | 2020-01-09 02:13:00 +0100 |
| commit | 1876b346fea647e8284a66bb6d62c38801035cff (patch) | |
| tree | 6eeff094298cda84d1613dc5ec0691e51d7b35f1 /Ryujinx.Graphics.Texture/BlockLinearLayout.cs | |
| parent | f617fb542a0e3d36012d77a4b5acbde7b08902f2 (diff) | |
Initial work
Diffstat (limited to 'Ryujinx.Graphics.Texture/BlockLinearLayout.cs')
| -rw-r--r-- | Ryujinx.Graphics.Texture/BlockLinearLayout.cs | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Texture/BlockLinearLayout.cs b/Ryujinx.Graphics.Texture/BlockLinearLayout.cs new file mode 100644 index 00000000..3d3f13ba --- /dev/null +++ b/Ryujinx.Graphics.Texture/BlockLinearLayout.cs @@ -0,0 +1,106 @@ +using Ryujinx.Common; +using System; + +using static Ryujinx.Graphics.Texture.BlockLinearConstants; + +namespace Ryujinx.Graphics.Texture +{ + class BlockLinearLayout + { + private struct RobAndSliceSizes + { + public int RobSize; + public int SliceSize; + + public RobAndSliceSizes(int robSize, int sliceSize) + { + RobSize = robSize; + SliceSize = sliceSize; + } + } + + private int _texWidth; + private int _texHeight; + private int _texDepth; + private int _texGobBlocksInY; + private int _texGobBlocksInZ; + private int _texBpp; + + private int _bhMask; + private int _bdMask; + + private int _bhShift; + private int _bdShift; + private int _bppShift; + + private int _xShift; + + private int _robSize; + private int _sliceSize; + + public BlockLinearLayout( + int width, + int height, + int depth, + int gobBlocksInY, + int gobBlocksInZ, + int bpp) + { + _texWidth = width; + _texHeight = height; + _texDepth = depth; + _texGobBlocksInY = gobBlocksInY; + _texGobBlocksInZ = gobBlocksInZ; + _texBpp = bpp; + + _bppShift = BitUtils.CountTrailingZeros32(bpp); + + _bhMask = gobBlocksInY - 1; + _bdMask = gobBlocksInZ - 1; + + _bhShift = BitUtils.CountTrailingZeros32(gobBlocksInY); + _bdShift = BitUtils.CountTrailingZeros32(gobBlocksInZ); + + _xShift = BitUtils.CountTrailingZeros32(GobSize * gobBlocksInY * gobBlocksInZ); + + RobAndSliceSizes rsSizes = GetRobAndSliceSizes(width, height, gobBlocksInY, gobBlocksInZ); + + _robSize = rsSizes.RobSize; + _sliceSize = rsSizes.SliceSize; + } + + private RobAndSliceSizes GetRobAndSliceSizes(int width, int height, int gobBlocksInY, int gobBlocksInZ) + { + int widthInGobs = BitUtils.DivRoundUp(width * _texBpp, GobStride); + + int robSize = GobSize * gobBlocksInY * gobBlocksInZ * widthInGobs; + + int sliceSize = BitUtils.DivRoundUp(height, gobBlocksInY * GobHeight) * robSize; + + return new RobAndSliceSizes(robSize, sliceSize); + } + + public int GetOffset(int x, int y, int z) + { + x <<= _bppShift; + + int yh = y / GobHeight; + + int position = (z >> _bdShift) * _sliceSize + (yh >> _bhShift) * _robSize; + + position += (x / GobStride) << _xShift; + + position += (yh & _bhMask) * GobSize; + + position += ((z & _bdMask) * GobSize) << _bhShift; + + position += ((x & 0x3f) >> 5) << 8; + position += ((y & 0x07) >> 1) << 6; + position += ((x & 0x1f) >> 4) << 5; + position += ((y & 0x01) >> 0) << 4; + position += ((x & 0x0f) >> 0) << 0; + + return position; + } + } +}
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