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Code Issues 6 Pull Requests Releases Wiki Activity

Merge "Set the swap interval of virtual display surfaces to 0"

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Jesse Hall 2013-08-07 15:23:00 +00:00 committed by Android (Google) Code Review
commit ff866e7642
2 changed files with 12 additions and 2 deletions
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13
services/surfaceflinger/DisplayDevice.cpp
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@ -64,7 +64,6 @@ DisplayDevice::DisplayDevice(
mDisplaySurface(displaySurface),
mDisplay(EGL_NO_DISPLAY),
mSurface(EGL_NO_SURFACE),
mContext(EGL_NO_CONTEXT),
mDisplayWidth(), mDisplayHeight(), mFormat(),
mFlags(),
mPageFlipCount(),
@ -80,6 +79,16 @@ DisplayDevice::DisplayDevice(
int format;
window->query(window, NATIVE_WINDOW_FORMAT, &format);
// Make sure that composition can never be stalled by a virtual display
// consumer that isn't processing buffers fast enough. We have to do this
// in two places:
// * Here, in case the display is composed entirely by HWC.
// * In makeCurrent(), using eglSwapInterval. Some EGL drivers set the
// window's swap interval in eglMakeCurrent, so they'll override the
// interval we set here.
if (mType >= DisplayDevice::DISPLAY_VIRTUAL)
window->setSwapInterval(window, 0);
/*
* Create our display's surface
*/
@ -254,6 +263,8 @@ EGLBoolean DisplayDevice::makeCurrent(EGLDisplay dpy, EGLContext ctx) const {
if (sur != mSurface) {
result = eglMakeCurrent(dpy, mSurface, mSurface, ctx);
if (result == EGL_TRUE) {
if (mType >= DisplayDevice::DISPLAY_VIRTUAL)
eglSwapInterval(dpy, 0);
setViewportAndProjection();
}
}

1
services/surfaceflinger/DisplayDevice.h
View File

@ -171,7 +171,6 @@ private:
EGLDisplay mDisplay;
EGLSurface mSurface;
EGLContext mContext;
int mDisplayWidth;
int mDisplayHeight;
PixelFormat mFormat;