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[GPU] Ownership-transfer-based RT cache, 3x3 resolution scaling

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The ROV path is also disabled by default because of lower performance
This commit is contained in:
Triang3l
2021-04-26 22:12:09 +03:00
parent 30ea6e3ea3
commit 913e1e949c
362 changed files with 185259 additions and 38291 deletions
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22
src/xenia/gpu/xenos.cc
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@@ -17,6 +17,26 @@ namespace xe {
namespace gpu {
namespace xenos {
// https://github.com/Microsoft/DirectXTex/blob/master/DirectXTex/DirectXTexConvert.cpp
float Float7e3To32(uint32_t f10) {
f10 &= 0x3FF;
if (!f10) {
return 0.0f;
}
uint32_t mantissa = f10 & 0x7F;
uint32_t exponent = f10 >> 7;
if (!exponent) {
// Normalize the value in the resulting float.
// do { Exponent--; Mantissa <<= 1; } while ((Mantissa & 0x80) == 0)
uint32_t mantissa_lzcnt = xe::lzcnt(mantissa) - (32 - 8);
exponent = uint32_t(1 - int32_t(mantissa_lzcnt));
mantissa = (mantissa << mantissa_lzcnt) & 0x7F;
}
uint32_t f32 = ((exponent + 124) << 23) | (mantissa << 3);
return *reinterpret_cast<const float*>(&f32);
}
// Based on CFloat24 from d3dref9.dll and the 6e4 code from:
// https://github.com/Microsoft/DirectXTex/blob/master/DirectXTex/DirectXTexConvert.cpp
// 6e4 has a different exponent bias allowing [0,512) values, 20e4 allows [0,2).
@@ -54,7 +74,7 @@ float Float20e4To32(uint32_t f24) {
// Normalize the value in the resulting float.
// do { Exponent--; Mantissa <<= 1; } while ((Mantissa & 0x100000) == 0)
uint32_t mantissa_lzcnt = xe::lzcnt(mantissa) - (32 - 21);
exponent = uint32_t(1 - mantissa_lzcnt);
exponent = uint32_t(1 - int32_t(mantissa_lzcnt));
mantissa = (mantissa << mantissa_lzcnt) & 0xFFFFF;
}
uint32_t f32 = ((exponent + 112) << 23) | (mantissa << 3);