Finish this bit before I forget.

Romain Guy · Romain Guy · commit f7e52d92b41a · 2012-09-21T15:06:52.000-07:00
This code is not enabled in current builds.

Change-Id: I488ec9e94889efbf2c8f3312abfed4298a76b7f1
diff --git a/libs/hwui/Stencil.cpp b/libs/hwui/Stencil.cpp
@@ -37,9 +37,10 @@ void Stencil::clear() {
 void Stencil::enableTest() {
     if (mState != kTest) {
         enable();
-        glStencilFunc(GL_LESS, 0x0, 0x1);
+        glStencilFunc(GL_EQUAL, 0x0, 0x1);
         // We only want to test, let's keep everything
         glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+        glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
         mState = kTest;
     }
 }
@@ -50,6 +51,7 @@ void Stencil::enableWrite() {
         glStencilFunc(GL_ALWAYS, 0x1, 0x1);
         // The test always passes so the first two values are meaningless
         glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
+        glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
         mState = kWrite;
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -37,9 +37,10 @@ void Stencil::clear() {`
`37`	`37`	`void Stencil::enableTest() {`
`38`	`38`	`if (mState != kTest) {`
`39`	`39`	`enable();`
`40`		`- glStencilFunc(GL_LESS, 0x0, 0x1);`
	`40`	`+ glStencilFunc(GL_EQUAL, 0x0, 0x1);`
`41`	`41`	`// We only want to test, let's keep everything`
`42`	`42`	`glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);`
	`43`	`+ glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);`
`43`	`44`	`mState = kTest;`
`44`	`45`	`}`
`45`	`46`	`}`
`@@ -50,6 +51,7 @@ void Stencil::enableWrite() {`
`50`	`51`	`glStencilFunc(GL_ALWAYS, 0x1, 0x1);`
`51`	`52`	`// The test always passes so the first two values are meaningless`
`52`	`53`	`glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);`
	`54`	`+ glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);`
`53`	`55`	`mState = kWrite;`
`54`	`56`	`}`
`55`	`57`	`}`