fix [2243164] live wallpaper screen artifacts at end of boot
make sure to glClear() the areas not touched by the animation
diff --git a/cmds/bootanimation/BootAnimation.cpp b/cmds/bootanimation/BootAnimation.cpp
index b5b88f3..ce36c4b 100644
--- a/cmds/bootanimation/BootAnimation.cpp
+++ b/cmds/bootanimation/BootAnimation.cpp
@@ -437,6 +437,9 @@
nsecs_t lastFrame = systemTime();
nsecs_t frameDuration = s2ns(1) / animation.fps;
+ Region clearReg(Rect(mWidth, mHeight));
+ clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
+
for (int i=0 ; i<pcount && !exitPending() ; i++) {
const Animation::Part& part(animation.parts[i]);
const size_t fcount = part.frames.size();
@@ -460,6 +463,18 @@
frame.map->getDataLength());
}
+ if (!clearReg.isEmpty()) {
+ Region::const_iterator head(clearReg.begin());
+ Region::const_iterator tail(clearReg.end());
+ glEnable(GL_SCISSOR_TEST);
+ while (head != tail) {
+ const Rect& r(*head++);
+ glScissor(r.left, mHeight - r.bottom,
+ r.width(), r.height());
+ glClear(GL_COLOR_BUFFER_BIT);
+ }
+ glDisable(GL_SCISSOR_TEST);
+ }
glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
eglSwapBuffers(mDisplay, mSurface);