fabi/Xenia-Canary
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

62
src/xenia/gpu/gpu_flags.cc
View File

@@ -40,71 +40,9 @@ DEFINE_bool(
"be fully covered when MSAA is used with fullscreen passes.",
"GPU");
DEFINE_bool(
ssaa_scale_gradients, true,
"When using SSAA instead of native MSAA, adjust texture coordinate "
"derivatives used for mipmap selection, and getGradients results, to guest "
"pixels as if true MSAA rather than SSAA was used.\n"
"Reduces bandwidth usage of texture fetching.",
"GPU");
DEFINE_string(
depth_float24_conversion, "",
"Method for converting 32-bit Z values to 20e4 floating point when using "
"host depth buffers without native 20e4 support (when not using rasterizer-"
"ordered views / fragment shader interlocks to perform depth testing "
"manually).\n"
"Use: [any, on_copy, truncate, round]\n"
" on_copy:\n"
" Do depth testing at host precision, converting when copying between "
"host depth buffers and the EDRAM buffer to support reinterpretation, "
"maintaining two copies, in both host and 20e4 formats, for reloading data "
"to host depth buffers when it wasn't overwritten.\n"
" + Highest performance, allows early depth test and writing.\n"
" + Host MSAA is possible with pixel-rate shading where supported.\n"
" - EDRAM > RAM > EDRAM depth buffer round trip done in certain games "
"(such as GTA IV) destroys precision irreparably, causing artifacts if "
"another rendering pass is done after the EDRAM reupload.\n"
" truncate:\n"
" Convert to 20e4 directly in pixel shaders, always rounding down.\n"
" + Good performance, conservative early depth test is possible.\n"
" + No precision loss when anything changes in the storage of the depth "
"buffer, EDRAM > RAM > EDRAM copying preserves precision.\n"
" - Rounding mode is incorrect, sometimes giving results smaller than "
"they should be - may cause inaccuracy especially in edge cases when the "
"game wants to write an exact value.\n"
" - Host MSAA is only possible at SSAA speed, with per-sample shading.\n"
" round:\n"
" Convert to 20e4 directly in pixel shaders, correctly rounding to the "
"nearest even.\n"
" + Highest accuracy.\n"
" - Significantly limited performance, early depth test is not possible.\n"
" - Host MSAA is only possible at SSAA speed, with per-sample shading.\n"
" Any other value:\n"
" Choose what is considered the most optimal (currently \"on_copy\").",
"GPU");
DEFINE_int32(query_occlusion_fake_sample_count, 1000,
"If set to -1 no sample counts are written, games may hang. Else, "
"the sample count of every tile will be incremented on every "
"EVENT_WRITE_ZPD by this number. Setting this to 0 means "
"everything is reported as occluded.",
"GPU");
namespace xe {
namespace gpu {
namespace flags {
DepthFloat24Conversion GetDepthFloat24Conversion() {
if (cvars::depth_float24_conversion == "truncate") {
return DepthFloat24Conversion::kOnOutputTruncating;
}
if (cvars::depth_float24_conversion == "round") {
return DepthFloat24Conversion::kOnOutputRounding;
}
return DepthFloat24Conversion::kOnCopy;
}
} // namespace flags
} // namespace gpu
} // namespace xe