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Unified Diff: src/gpu/batches/GrDefaultPathRenderer.cpp

Issue 1860563002: Revert of added GrMSAAPathRenderer (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 4 years, 8 months ago
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Index: src/gpu/batches/GrDefaultPathRenderer.cpp
diff --git a/src/gpu/batches/GrDefaultPathRenderer.cpp b/src/gpu/batches/GrDefaultPathRenderer.cpp
index 708bcd723413317031d1d5e1ce956360e233e46d..94508b130b4fcc05198bab77955c7e878f816bb4 100644
--- a/src/gpu/batches/GrDefaultPathRenderer.cpp
+++ b/src/gpu/batches/GrDefaultPathRenderer.cpp
@@ -28,6 +28,130 @@
: fSeparateStencil(separateStencilSupport)
, fStencilWrapOps(stencilWrapOpsSupport) {
}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Stencil rules for paths
+
+////// Even/Odd
+
+GR_STATIC_CONST_SAME_STENCIL(gEOStencilPass,
+ kInvert_StencilOp,
+ kKeep_StencilOp,
+ kAlwaysIfInClip_StencilFunc,
+ 0xffff,
+ 0xffff,
+ 0xffff);
+
+// ok not to check clip b/c stencil pass only wrote inside clip
+GR_STATIC_CONST_SAME_STENCIL(gEOColorPass,
+ kZero_StencilOp,
+ kZero_StencilOp,
+ kNotEqual_StencilFunc,
+ 0xffff,
+ 0x0000,
+ 0xffff);
+
+// have to check clip b/c outside clip will always be zero.
+GR_STATIC_CONST_SAME_STENCIL(gInvEOColorPass,
+ kZero_StencilOp,
+ kZero_StencilOp,
+ kEqualIfInClip_StencilFunc,
+ 0xffff,
+ 0x0000,
+ 0xffff);
+
+////// Winding
+
+// when we have separate stencil we increment front faces / decrement back faces
+// when we don't have wrap incr and decr we use the stencil test to simulate
+// them.
+
+GR_STATIC_CONST_STENCIL(gWindStencilSeparateWithWrap,
+ kIncWrap_StencilOp, kDecWrap_StencilOp,
+ kKeep_StencilOp, kKeep_StencilOp,
+ kAlwaysIfInClip_StencilFunc, kAlwaysIfInClip_StencilFunc,
+ 0xffff, 0xffff,
+ 0xffff, 0xffff,
+ 0xffff, 0xffff);
+
+// if inc'ing the max value, invert to make 0
+// if dec'ing zero invert to make all ones.
+// we can't avoid touching the stencil on both passing and
+// failing, so we can't resctrict ourselves to the clip.
+GR_STATIC_CONST_STENCIL(gWindStencilSeparateNoWrap,
+ kInvert_StencilOp, kInvert_StencilOp,
+ kIncClamp_StencilOp, kDecClamp_StencilOp,
+ kEqual_StencilFunc, kEqual_StencilFunc,
+ 0xffff, 0xffff,
+ 0xffff, 0x0000,
+ 0xffff, 0xffff);
+
+// When there are no separate faces we do two passes to setup the winding rule
+// stencil. First we draw the front faces and inc, then we draw the back faces
+// and dec. These are same as the above two split into the incrementing and
+// decrementing passes.
+GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilWithWrapInc,
+ kIncWrap_StencilOp,
+ kKeep_StencilOp,
+ kAlwaysIfInClip_StencilFunc,
+ 0xffff,
+ 0xffff,
+ 0xffff);
+
+GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilWithWrapDec,
+ kDecWrap_StencilOp,
+ kKeep_StencilOp,
+ kAlwaysIfInClip_StencilFunc,
+ 0xffff,
+ 0xffff,
+ 0xffff);
+
+GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilNoWrapInc,
+ kInvert_StencilOp,
+ kIncClamp_StencilOp,
+ kEqual_StencilFunc,
+ 0xffff,
+ 0xffff,
+ 0xffff);
+
+GR_STATIC_CONST_SAME_STENCIL(gWindSingleStencilNoWrapDec,
+ kInvert_StencilOp,
+ kDecClamp_StencilOp,
+ kEqual_StencilFunc,
+ 0xffff,
+ 0x0000,
+ 0xffff);
+
+// Color passes are the same whether we use the two-sided stencil or two passes
+
+GR_STATIC_CONST_SAME_STENCIL(gWindColorPass,
+ kZero_StencilOp,
+ kZero_StencilOp,
+ kNonZeroIfInClip_StencilFunc,
+ 0xffff,
+ 0x0000,
+ 0xffff);
+
+GR_STATIC_CONST_SAME_STENCIL(gInvWindColorPass,
+ kZero_StencilOp,
+ kZero_StencilOp,
+ kEqualIfInClip_StencilFunc,
+ 0xffff,
+ 0x0000,
+ 0xffff);
+
+////// Normal render to stencil
+
+// Sometimes the default path renderer can draw a path directly to the stencil
+// buffer without having to first resolve the interior / exterior.
+GR_STATIC_CONST_SAME_STENCIL(gDirectToStencil,
+ kZero_StencilOp,
+ kIncClamp_StencilOp,
+ kAlwaysIfInClip_StencilFunc,
+ 0xffff,
+ 0x0000,
+ 0xffff);
////////////////////////////////////////////////////////////////////////////////
// Helpers for drawPath
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