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[D3D12] Truncate depth to float24 in EDRAM range ownership transfers and resolves by default

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Doesn't ruin the "greater or equal" depth test in subsequent rendering passes if precision is lost, unlike rounding to the nearest
This commit is contained in:
Triang3l
2022-06-22 12:53:09 +03:00
parent e2f632f8fa
commit 7869b080d3
14 changed files with 193 additions and 185 deletions
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4
src/xenia/gpu/xenos.h
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@@ -336,8 +336,8 @@ float Float7e3To32(uint32_t f10);
// Converts 24-bit unorm depth in the value (not clamping) to an IEEE-754 32-bit
// floating-point number.
// Converts an IEEE-754 32-bit floating-point number to Xenos floating-point
// depth, rounding to the nearest even.
uint32_t Float32To20e4(float f32);
// depth, rounding to the nearest even or towards zero.
uint32_t Float32To20e4(float f32, bool round_to_nearest_even);
// Converts Xenos floating-point depth in bits 0:23 (not clamping) to an
// IEEE-754 32-bit floating-point number.
float Float20e4To32(uint32_t f24);