aboutsummaryrefslogtreecommitdiff
path: root/Ryujinx.Graphics/Gal/Texture/SwizzleAddr.cs
diff options
context:
space:
mode:
authorgdkchan <gab.dark.100@gmail.com>2018-06-08 21:15:56 -0300
committerGitHub <noreply@github.com>2018-06-08 21:15:56 -0300
commit231fae1a4c97d7588655e9775f37c1dc9bd55fb0 (patch)
tree1c0e7b298ec33d5bf5b6a5693dd69a8c7e0bd23b /Ryujinx.Graphics/Gal/Texture/SwizzleAddr.cs
parent6fe51f970501fe732276c17ed0dacb564b92a73d (diff)
Texture/Vertex/Index data cache (#132)
* Initial implementation of the texture cache * Cache vertex and index data aswell, some cleanup * Improve handling of the cache by storing cached ranges on a list for each page * Delete old data from the caches automatically, ensure that the cache is cleaned when the mapping/size changes, and some general cleanup
Diffstat (limited to 'Ryujinx.Graphics/Gal/Texture/SwizzleAddr.cs')
-rw-r--r--Ryujinx.Graphics/Gal/Texture/SwizzleAddr.cs144
1 files changed, 0 insertions, 144 deletions
diff --git a/Ryujinx.Graphics/Gal/Texture/SwizzleAddr.cs b/Ryujinx.Graphics/Gal/Texture/SwizzleAddr.cs
deleted file mode 100644
index b67b841b..00000000
--- a/Ryujinx.Graphics/Gal/Texture/SwizzleAddr.cs
+++ /dev/null
@@ -1,144 +0,0 @@
-using System;
-
-namespace Ryujinx.Graphics.Gal.Texture
-{
- class SwizzleAddr
- {
- private int Width;
-
- private int XB;
- private int YB;
-
- public SwizzleAddr(int Width, int Height, int Pad)
- {
- int W = Pow2RoundUp(Width);
- int H = Pow2RoundUp(Height);
-
- XB = CountZeros(W);
- YB = CountZeros(H);
-
- int HH = H >> 1;
-
- if (!IsPow2(Height) && Height <= HH + HH / 3 && YB > 3)
- {
- YB--;
- }
-
- this.Width = RoundSize(Width, Pad);
- }
-
- private static int Pow2RoundUp(int Value)
- {
- Value--;
-
- Value |= (Value >> 1);
- Value |= (Value >> 2);
- Value |= (Value >> 4);
- Value |= (Value >> 8);
- Value |= (Value >> 16);
-
- return ++Value;
- }
-
- private static bool IsPow2(int Value)
- {
- return Value != 0 && (Value & (Value - 1)) == 0;
- }
-
- private static int CountZeros(int Value)
- {
- int Count = 0;
-
- for (int i = 0; i < 32; i++)
- {
- if ((Value & (1 << i)) != 0)
- {
- break;
- }
-
- Count++;
- }
-
- return Count;
- }
-
- private static int RoundSize(int Size, int Pad)
- {
- int Mask = Pad - 1;
-
- if ((Size & Mask) != 0)
- {
- Size &= ~Mask;
- Size += Pad;
- }
-
- return Size;
- }
-
- public int GetSwizzledAddress8(int X, int Y)
- {
- return GetSwizzledAddress(X, Y, 4);
- }
-
- public int GetSwizzledAddress16(int X, int Y)
- {
- return GetSwizzledAddress(X, Y, 3);
- }
-
- public int GetSwizzledAddress32(int X, int Y)
- {
- return GetSwizzledAddress(X, Y, 2);
- }
-
- public int GetSwizzledAddress64(int X, int Y)
- {
- return GetSwizzledAddress(X, Y, 1);
- }
-
- public int GetSwizzledAddress128(int X, int Y)
- {
- return GetSwizzledAddress(X, Y, 0);
- }
-
- private int GetSwizzledAddress(int X, int Y, int XBase)
- {
- /*
- * Examples of patterns:
- * x x y x y y x y 0 0 0 0 64 x 64 dxt5
- * x x x x x y y y y x y y x y 0 0 0 0 512 x 512 dxt5
- * y x x x x x x y y y y x y y x y 0 0 0 0 1024 x 1024 dxt5
- * y y x x x x x x y y y y x y y x y x 0 0 0 2048 x 2048 dxt1
- * y y y x x x x x x y y y y x y y x y x x 0 0 1024 x 1024 rgba8888
- *
- * Read from right to left, LSB first.
- */
- int XCnt = XBase;
- int YCnt = 1;
- int XUsed = 0;
- int YUsed = 0;
- int Address = 0;
-
- while (XUsed < XBase + 2 && XUsed + XCnt < XB)
- {
- int XMask = (1 << XCnt) - 1;
- int YMask = (1 << YCnt) - 1;
-
- Address |= (X & XMask) << XUsed + YUsed;
- Address |= (Y & YMask) << XUsed + YUsed + XCnt;
-
- X >>= XCnt;
- Y >>= YCnt;
-
- XUsed += XCnt;
- YUsed += YCnt;
-
- XCnt = Math.Min(XB - XUsed, 1);
- YCnt = Math.Min(YB - YUsed, YCnt << 1);
- }
-
- Address |= (X + Y * (Width >> XUsed)) << (XUsed + YUsed);
-
- return Address;
- }
- }
-}