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bug#460672 framebuffer surface can't keep triple buffer if define NUM_FRAMEBUFFER_SURFACE_BUFFERS := 3 

[root cause  ] framebuffer surface is in the same process of surface flinger
[changes     ] call IGraphicBufferProducer::allocateBuffers on producer inside the DisplayDevice constructor to force-allocate all three buffers.
[side effects] none
[self test   ]<tshark, enter and exit mainmenu>: ok
[reviewers   ] zhongjun.chen
[change_type ] AOB --> google_original
[tag_product ] common

Change-Id: Ideb75d3aa1ed23b2fa4d263a120ea3ca39d01361
This commit is contained in:
james.zhang 2015-12-01 17:55:11 +08:00 committed by Steve Kondik
parent 21145beae7
commit d40a35f61d
1 changed files with 11 additions and 6 deletions
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17
services/surfaceflinger/DisplayDevice.cpp
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@ -88,7 +88,8 @@ DisplayDevice::DisplayDevice(
mPowerMode(HWC_POWER_MODE_OFF),
mActiveConfig(0)
{
mNativeWindow = new Surface(producer, false);
Surface* surface;
mNativeWindow = surface = new Surface(producer, false);
ANativeWindow* const window = mNativeWindow.get();
char property[PROPERTY_VALUE_MAX];
@ -96,14 +97,14 @@ DisplayDevice::DisplayDevice(
* Create our display's surface
*/
EGLSurface surface;
EGLSurface eglSurface;
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (config == EGL_NO_CONFIG) {
config = RenderEngine::chooseEglConfig(display, format);
}
surface = eglCreateWindowSurface(display, config, window, NULL);
eglQuerySurface(display, surface, EGL_WIDTH, &mDisplayWidth);
eglQuerySurface(display, surface, EGL_HEIGHT, &mDisplayHeight);
eglSurface = eglCreateWindowSurface(display, config, window, NULL);
eglQuerySurface(display, eglSurface, EGL_WIDTH, &mDisplayWidth);
eglQuerySurface(display, eglSurface, EGL_HEIGHT, &mDisplayHeight);
// 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
@ -117,7 +118,7 @@ DisplayDevice::DisplayDevice(
mConfig = config;
mDisplay = display;
mSurface = surface;
mSurface = eglSurface;
mFormat = format;
mPageFlipCount = 0;
mViewport.makeInvalid();
@ -148,6 +149,10 @@ DisplayDevice::DisplayDevice(
// initialize the display orientation transform.
setProjection(DisplayState::eOrientationDefault, mViewport, mFrame);
#ifdef NUM_FRAMEBUFFER_SURFACE_BUFFERS
surface->allocateBuffers();
#endif
}
DisplayDevice::~DisplayDevice() {