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-rw-r--r--src/video_core/morton.cpp39
1 files changed, 0 insertions, 39 deletions
diff --git a/src/video_core/morton.cpp b/src/video_core/morton.cpp
index b68f4fb13..69b6be73a 100644
--- a/src/video_core/morton.cpp
+++ b/src/video_core/morton.cpp
@@ -191,45 +191,6 @@ static MortonCopyFn GetSwizzleFunction(MortonSwizzleMode mode, Surface::PixelFor
191 return morton_to_linear_fns[static_cast<std::size_t>(format)]; 191 return morton_to_linear_fns[static_cast<std::size_t>(format)];
192} 192}
193 193
194/// 8x8 Z-Order coordinate from 2D coordinates
195static u32 MortonInterleave(u32 x, u32 y) {
196 static const u32 xlut[] = {0x00, 0x01, 0x04, 0x05, 0x10, 0x11, 0x14, 0x15};
197 static const u32 ylut[] = {0x00, 0x02, 0x08, 0x0a, 0x20, 0x22, 0x28, 0x2a};
198 return xlut[x % 8] + ylut[y % 8];
199}
200
201/// Calculates the offset of the position of the pixel in Morton order
202static u32 GetMortonOffset(u32 x, u32 y, u32 bytes_per_pixel) {
203 // Images are split into 8x8 tiles. Each tile is composed of four 4x4 subtiles each
204 // of which is composed of four 2x2 subtiles each of which is composed of four texels.
205 // Each structure is embedded into the next-bigger one in a diagonal pattern, e.g.
206 // texels are laid out in a 2x2 subtile like this:
207 // 2 3
208 // 0 1
209 //
210 // The full 8x8 tile has the texels arranged like this:
211 //
212 // 42 43 46 47 58 59 62 63
213 // 40 41 44 45 56 57 60 61
214 // 34 35 38 39 50 51 54 55
215 // 32 33 36 37 48 49 52 53
216 // 10 11 14 15 26 27 30 31
217 // 08 09 12 13 24 25 28 29
218 // 02 03 06 07 18 19 22 23
219 // 00 01 04 05 16 17 20 21
220 //
221 // This pattern is what's called Z-order curve, or Morton order.
222
223 const unsigned int block_height = 8;
224 const unsigned int coarse_x = x & ~7;
225
226 u32 i = MortonInterleave(x, y);
227
228 const unsigned int offset = coarse_x * block_height;
229
230 return (i + offset) * bytes_per_pixel;
231}
232
233static u32 MortonInterleave128(u32 x, u32 y) { 194static u32 MortonInterleave128(u32 x, u32 y) {
234 // 128x128 Z-Order coordinate from 2D coordinates 195 // 128x128 Z-Order coordinate from 2D coordinates
235 static constexpr u32 xlut[] = { 196 static constexpr u32 xlut[] = {