[D3D12] DXBC: Most of tfetch

2018-09-11 22:49:46 +03:00
parent d67b6f7a3e
commit 2a98d29eda
8 changed files with 473 additions and 108 deletions
--- a/src/xenia/gpu/ucode.h
+++ b/src/xenia/gpu/ucode.h
@@ -640,6 +640,10 @@ struct TextureFetchInstruction {
  SampleLocation sample_location() const {
    return static_cast<SampleLocation>(data_.sample_location);
  }
+  float lod_bias() const {
+    // http://web.archive.org/web/20090514012026/http://msdn.microsoft.com:80/en-us/library/bb313957.aspx
+    return ((static_cast<int>(data_.lod_bias) << 25) >> 25) / 16.0f;
+  }
  float offset_x() const {
    return ((static_cast<int>(data_.offset_x) << 27) >> 27) / 2.0f;
  }