Remove very early depth test
Bug: b/128363727
Change-Id: Ia595876610b077c4be366174264de7a55f14dc4c
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/27029
Tested-by: Chris Forbes <chrisforbes@google.com>
Presubmit-Ready: Chris Forbes <chrisforbes@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/Device/Context.cpp b/src/Device/Context.cpp
index 4f231bf..c6fd05f 100644
--- a/src/Device/Context.cpp
+++ b/src/Device/Context.cpp
@@ -35,7 +35,6 @@
bool forceWindowed = false;
bool quadLayoutEnabled = false;
- bool veryEarlyDepthTest = true;
bool postBlendSRGB = false;
bool exactColorRounding = false;
TransparencyAntialiasing transparencyAntialiasing = TRANSPARENCY_NONE;
diff --git a/src/Device/QuadRasterizer.cpp b/src/Device/QuadRasterizer.cpp
index 637a287..ed752d2 100644
--- a/src/Device/QuadRasterizer.cpp
+++ b/src/Device/QuadRasterizer.cpp
@@ -22,7 +22,6 @@
namespace sw
{
- extern bool veryEarlyDepthTest;
extern bool fullPixelPositionRegister;
extern int clusterCount;
@@ -158,69 +157,6 @@
}
}
- if(veryEarlyDepthTest && state.multiSample == 1 && !spirvShader->getModes().DepthReplacing)
- {
- if(!state.stencilActive && state.depthTestActive && (state.depthCompareMode == VK_COMPARE_OP_LESS_OR_EQUAL || state.depthCompareMode == VK_COMPARE_OP_LESS)) // FIXME: Both modes ok?
- {
- Float4 xxxx = Float4(Float(x0)) + *Pointer<Float4>(primitive + OFFSET(Primitive,xQuad), 16);
-
- Pointer<Byte> buffer;
- Int pitch;
-
- if(!state.quadLayoutDepthBuffer)
- {
- buffer = zBuffer + 4 * x0;
- pitch = *Pointer<Int>(data + OFFSET(DrawData,depthPitchB));
- }
- else
- {
- buffer = zBuffer + 8 * x0;
- }
-
- For(Int x = x0, x < x1, x += 2)
- {
- Float4 z = interpolate(xxxx, Dz[0], z, primitive + OFFSET(Primitive,z), false, false, state.depthClamp);
-
- Float4 zValue;
-
- if(!state.quadLayoutDepthBuffer)
- {
- // FIXME: Properly optimizes?
- zValue.xy = *Pointer<Float4>(buffer);
- zValue.zw = *Pointer<Float4>(buffer + pitch - 8);
- }
- else
- {
- zValue = *Pointer<Float4>(buffer, 16);
- }
-
- Int4 zTest = CmpNLT(zValue, z);
-
- Int zMask = SignMask(zTest);
-
- If(zMask == 0)
- {
- x0 += 2;
- }
- Else
- {
- x = x1;
- }
-
- xxxx += Float4(2);
-
- if(!state.quadLayoutDepthBuffer)
- {
- buffer += 8;
- }
- else
- {
- buffer += 16;
- }
- }
- }
- }
-
If(x0 < x1)
{
if(interpolateW())
