Add support for a new developer setting: overdraw debugging
Change-Id: I350ba4486577c3289f82c20938f7a35138778727
diff --git a/libs/hwui/Caches.cpp b/libs/hwui/Caches.cpp
index 068eb9e..22f1dec 100644
--- a/libs/hwui/Caches.cpp
+++ b/libs/hwui/Caches.cpp
@@ -131,6 +131,13 @@
} else {
debugLayersUpdates = false;
}
+
+ if (property_get(PROPERTY_DEBUG_OVERDRAW, property, NULL) > 0) {
+ INIT_LOGD(" Overdraw debug enabled: %s", property);
+ debugOverdraw = !strcmp(property, "true");
+ } else {
+ debugOverdraw = false;
+ }
}
void Caches::terminate() {
@@ -429,7 +436,9 @@
void Caches::startTiling(GLuint x, GLuint y, GLuint width, GLuint height, bool opaque) {
if (extensions.hasTiledRendering()) {
- glStartTilingQCOM(x, y, width, height, opaque ? GL_NONE : GL_COLOR_BUFFER_BIT0_QCOM);
+ glStartTilingQCOM(x, y, width, height,
+ (opaque ? GL_NONE : GL_COLOR_BUFFER_BIT0_QCOM) |
+ (debugOverdraw ? GL_STENCIL_BUFFER_BIT0_QCOM : 0));
}
}